Pub Date : 2023-01-28DOI: 10.29313/bcsme.v3i1.5848
D. Yunita, Sri Widayati, Dudi Nasrudin Usman
Abstract. Based on the Regulation of the Minister of Environment and Forestry of the Republic of Indonesia Number 5 of 2022 concerning Wastewater Treatment for Mining Businesses and Activities, the resulting coal wastewater must meet the established standard quality standards it is necessary to treat wastewater so that it does not pollute the environment environment and interfere with human health. Management of acid mine drainage can be done by adding chemicals to neutralize the pH of acid mine drainage, one of which is by using fly ash. This research was conducted to determine the effectiveness of the use of fly ash in neutralizing the pH of the water and reducing the levels of Fe and Mn metals in the settling pond using several measurement and testing parameters, namely measuring the degree of acidity and testing the levels of Fe and Mn metals. The test results for 31 days showed that the average incoming water discharge was 614,462 l/day, the average pH value before handling was 5.64, the moderate Fe metal content before handling was 8.58 mg/l, and the average Mn content before handling of 5.60 mg/l. From the test results, it was found that the required amount of fly ash was 16,066 g/day. The effectiveness of increasing the average pH was 20.52%, the effectiveness of reducing Fe metal levels was 46.37%, and the effectiveness of reducing Mn levels was 40.99%. Abstrak. Berdasarkan Peraturan Menteri Lingkungan Hidup Dan Kehutanan Republik Indonesia Nomor 5 Tahun 2022 Tentang Pengolahan Air Limbah Bagi Usaha dan/atau Kegiatan Pertambangan bahwa air limbah batubara yang dihasilkan harus memenuhi nilai baku mutu standar yang sudah ditetapkan, maka perlu dilakukan pengolahan air limbah agar tidak mencemari lingkungan sekitar dan mengganggu kesehatan manusia. Pengolahan air asam tambang dapat dilakukan dengan menambahkan bahan kimia untuk menetralkan pH air asam tambang, salah satunya dengan menggunakan fly ash. Penelitian ini dilakukan untuk mengetahui efektivitas penggunaan fly ash dalam menetralkan pH air dan menurunkan kadar logam Fe dan Mn di settling pond dengan menggunakan beberapa parameter pengukuran dan pengujian, yaitu pengukuran derajat keasaman dan pengujian kadar logam Fe dan Mn. Hasil pengujian selama 31 hari didapatkan rata – rata debit air yang masuk sebesar 614.462 l/hari, rata – rata nilai pH sebelum penanganan sebesar 5,64, rata – rata kadar logam Fe sebelum penanganan sebesar 8,58 mg/l, dan rata – rata kadar logam Mn sebelum penanganan sebesar 5,60 mg/l. Dari hasil pengujian tersebut didapatkan jumlah kebutuhan fly ash sebesar 16.066 g/hari. Efektivitas kenaikan pH rata – rata sebesar 20,52%, efektivitas penurunan kadar logam Fe rata – rata sebesar 46,37%, dan efektivitas penurunan kadar logam Mn rata – rata sebesar 40,99%.
摘要根据印度尼西亚共和国环境和林业部关于采矿企业和活动废水处理的2022年第5号条例，由此产生的煤炭废水必须符合既定的标准质量标准，必须对废水进行处理，使其不污染环境和干扰人类健康。酸性矿井水的治理可以通过添加化学物质来中和酸性矿井水的pH值来实现，其中一种方法是使用粉煤灰。本研究旨在通过测定酸度和测定铁锰金属含量这几个测量和测试参数，来确定粉煤灰在沉降池中中和水pH值和降低铁锰金属含量方面的有效性。31天的试验结果表明，进水平均排放量为614,462 l/d，处理前平均pH值为5.64，处理前中等铁金属含量为8.58 mg/l，处理前平均锰含量为5.60 mg/l。由试验结果可知，所需粉煤灰用量为16066 g/d。提高平均pH的有效性为20.52%，降低Fe金属水平的有效性为46.37%，降低Mn水平的有效性为40.99%。Abstrak。马来西亚国家航空公司(Berdasarkan Peraturan Menteri Lingkungan Hidup Dan Kehutanan)印度尼西亚共和国(Indonesia) no or 5 Tahun 2022 tenang Pengolahan Air Limbah batubara yang dihasilkan harus memenuhi nilai baku mutu standar yang sudah ditetapkan, maka perlu dilakukan Pengolahan Air Limbah agar tidak menemari Lingkungan sekitar Dan mengganggu kesehatan manusia。Pengolahan air asam tambang dapat dilakukan dengan menambahkan bahan kimia untuk menetralkan pH air asam tambang, salah satunya denan menggunakan飞灰。Penelitian ini dilakukan untuk mengetahui efektivitas penggunaan fly ash dalam menetralkan空气danmenurunkan kadar logam Fe danmn沉降池dengan menggunakan beberapa参数penguin an dan penguin, yitu penguin derajat keasaman dan penguin kadar logam Fe dan Mn。Hasil penguin selama 31 hari didapatkan rata - rata debit air yang masuk sebesar 614.462 l/hari, rata - rata nilai pH sebelum penanganan sebesar 5,64, rata - rata kadanan sebesar Fe sebelum penanganan sebesar 8,58 mg/l, dan rata - rata kadar logam Mn sebelum penanganan sebesar 5,60 mg/l。Dari hasil pengujian tersebut didapatkan jumlah kebutuhan飞灰sebesar 16.066 g/hari。Efektivitas kenaikan pH - rata sebesar 20,52%， Efektivitas penurunan kadar logar Fe rata - rata sebesar 46,37%， dfektivitas penurunan kadar logar Mn rata - rata sebesar 40,99%。
{"title":"Studi Pendahuluan Efektivitas Penggunaan Fly Ash Dalam Pengolahan Air Asam Tambang Pada Tambang Batubara Di PT XYZ Kabupaten Kutai Kartanegara Provinsi Kalimantan Timur","authors":"D. Yunita, Sri Widayati, Dudi Nasrudin Usman","doi":"10.29313/bcsme.v3i1.5848","DOIUrl":"https://doi.org/10.29313/bcsme.v3i1.5848","url":null,"abstract":"Abstract. Based on the Regulation of the Minister of Environment and Forestry of the Republic of Indonesia Number 5 of 2022 concerning Wastewater Treatment for Mining Businesses and Activities, the resulting coal wastewater must meet the established standard quality standards it is necessary to treat wastewater so that it does not pollute the environment environment and interfere with human health. Management of acid mine drainage can be done by adding chemicals to neutralize the pH of acid mine drainage, one of which is by using fly ash. This research was conducted to determine the effectiveness of the use of fly ash in neutralizing the pH of the water and reducing the levels of Fe and Mn metals in the settling pond using several measurement and testing parameters, namely measuring the degree of acidity and testing the levels of Fe and Mn metals. The test results for 31 days showed that the average incoming water discharge was 614,462 l/day, the average pH value before handling was 5.64, the moderate Fe metal content before handling was 8.58 mg/l, and the average Mn content before handling of 5.60 mg/l. From the test results, it was found that the required amount of fly ash was 16,066 g/day. The effectiveness of increasing the average pH was 20.52%, the effectiveness of reducing Fe metal levels was 46.37%, and the effectiveness of reducing Mn levels was 40.99%. \u0000Abstrak. Berdasarkan Peraturan Menteri Lingkungan Hidup Dan Kehutanan Republik Indonesia Nomor 5 Tahun 2022 Tentang Pengolahan Air Limbah Bagi Usaha dan/atau Kegiatan Pertambangan bahwa air limbah batubara yang dihasilkan harus memenuhi nilai baku mutu standar yang sudah ditetapkan, maka perlu dilakukan pengolahan air limbah agar tidak mencemari lingkungan sekitar dan mengganggu kesehatan manusia. Pengolahan air asam tambang dapat dilakukan dengan menambahkan bahan kimia untuk menetralkan pH air asam tambang, salah satunya dengan menggunakan fly ash. Penelitian ini dilakukan untuk mengetahui efektivitas penggunaan fly ash dalam menetralkan pH air dan menurunkan kadar logam Fe dan Mn di settling pond dengan menggunakan beberapa parameter pengukuran dan pengujian, yaitu pengukuran derajat keasaman dan pengujian kadar logam Fe dan Mn. Hasil pengujian selama 31 hari didapatkan rata – rata debit air yang masuk sebesar 614.462 l/hari, rata – rata nilai pH sebelum penanganan sebesar 5,64, rata – rata kadar logam Fe sebelum penanganan sebesar 8,58 mg/l, dan rata – rata kadar logam Mn sebelum penanganan sebesar 5,60 mg/l. Dari hasil pengujian tersebut didapatkan jumlah kebutuhan fly ash sebesar 16.066 g/hari. Efektivitas kenaikan pH rata – rata sebesar 20,52%, efektivitas penurunan kadar logam Fe rata – rata sebesar 46,37%, dan efektivitas penurunan kadar logam Mn rata – rata sebesar 40,99%.","PeriodicalId":187584,"journal":{"name":"Bandung Conference Series: Mining Engineering","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129944653","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-28DOI: 10.29313/bcsme.v3i1.6615
Adam Sutodrono, Zaenal, Sriyanti
Abstract. The research method used is to make measurements first, such as available time, productive time, inhibition time, circulation time, bucket capacity, material weight, material volume. The measurement of cycle time is aimed at digging and loading equipment and conveyance pairs in one mining cycle. The data processing carried out is looking for production and efforts to increase production on overburden removal. Environmental conditions in the 2017-2021 timeframe have an average rainfall of 219.25 mm/year. The efficiency of the loading and digging equipment is 77.92%, while for the transportation equipment it is 80.40%. The circulation time obtained for the digging equipment is 26.87 seconds or 0.45 minutes, and for the transportation equipment it is 5.47 minutes. The Swell Factor obtained was 79.86%, and the Fill Factor was 85.05%. Production results of loading and unloading equipment amounted to 473,20 tons/hour, and transportation equipment amounted to 473,98 tons/hour. The compatibility value of the tool is 0.97. The production target was 558.60 tons/hour. From this target, the production of loading and hauling equipment had not been achieved, then the compiler made efforts to improve production. Abstrak. Metode penelitian yang dilakukan adalah melakukan pengukuran terlebih dahulu, seperti waktu tersedia, waktu produktif, waktu hambatan, waktu edar, kapasitas bucket, berat material, volume material. Pengukuran waktu edar ditujukan pada alat gali-muat serta pasangan alat angkut dalam satu siklus penambangan. Pengolahan data yang dilakukan adalah mencari produksi dan upaya peningkaan produksi pada pemindahan overburden. Kondisi lingkungan dalam rentang waktu 2017-2021 memiliki curah hujan rata-rata 219,25 mm/tahun. Efisiensi alat gali muat sebesar 77,95 %, sedangkan untuk alat angkut senilai 80,45 %. Waktu edar yang didapatkan pada alat gali muat sebesar 26,87 detik atau 0,45 menit, serta untuk alat angkut sebesar 5,47 menit. Swell Factor yang didapatkan sebesar 79,88 %, dan Fill Factor sebesar 85,05 %. Hasil Produksi alat gali muat sebesar 473,20 ton/jam, serta alat angkut sebesar 473,98 ton/jam. Nilai keserasian alat adalah 0,97. Target produksi adalah 558,60 ton/jam dari target tersebut produksi alat gali muat dan angkut belum tercapai, kemudian penyusun melakukan upaya perbaikan produksi.
摘要。采用的研究方法是先进行测量，如可用时间、生产时间、抑制时间、循环时间、斗容量、物料重量、物料体积等。周期时间的测量是针对一个采矿周期内的挖掘、装载设备和运输工具对。所进行的数据处理是寻找生产和努力增加上覆岩层去除的产量。2017-2021年期间的环境条件平均降雨量为219.25毫米/年。装掘设备的效率为77.92%，运输设备的效率为80.40%。挖掘设备的循环时间为26.87秒0.45分钟，运输设备的循环时间为5.47分钟。膨胀系数为79.86%，填充系数为85.05%。装卸设备生产成果达473.20吨/小时，运输设备生产成果达473.98吨/小时。该工具的兼容性值为0.97。生产目标为558.60吨/小时。从这个目标来看，装载和牵引设备的生产还没有达到，于是编译器努力提高生产。Abstrak。Metode penelitian yang dilakukan adalah melakukan pengukuran terlebih dahulu, seperti waktu tersedia, waktu producttif, waktu hambatan, waktu edar, kapasitas bucket, berat material, volume material。企鹅waktu edar ditujukan padat gali-muat serta pasangan alat angkut dalam satu siklus penambangan。Pengolahan数据yang dilakukan adalah mencari produksi dan upaya peningkaan produksi pademindahan覆盖层。Kondisi lingkungan dalam rentang waktu 2017-2021 memiliki curah hujan rata-rata 219,25 mm/tahun。Efisiensi alat gali muat sebesar 77,95 %， sedangkan untuk alat angkut senilai 80,45 %。Waktu edar yang didapatkan pada alat galat sebesar 26,87 dedek atatar为0,45分钟，serta untuk alandangkut sebesar为5,47分钟。膨胀因子yang didapatkan sebesar 79,88%，但填充因子sebesar 85,05%。Hasil Produksi alat gali muat sebesar 473,20吨/果酱，serta alat angkut sebesar 473,98吨/果酱。Nilai keserasian alat adalah 0,97。目标产品为adalah 558,60吨/果酱，目标产品为alat gali muat danangkut belum tercapai, kemudian penyusun melakukan upaya perbaikan产品。
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Pub Date : 2023-01-28DOI: 10.29313/bcsme.v3i1.6167
A. Purnawarman, Sriyanti, Elfida Moralista
Abstract. In the Ciguha mining area which is located at PT Aneka Tambang Tbk, UBPE Pongkor, Bogor Regency, West Java Province, there is a change in the quantity of air in the mine ventilation system. A decrease in air quantity occurs in the auxiliary fan along with the flexible duct which causes a decrease in the air discharge and there is an air leakage in the area around the main fan which causes the air to come back out. The maximum limit for reducing air discharge determined by the company is 15%. Therefore, it is necessary to conduct research with the aim of knowing the decrease in air flow in the 37 kW auxiliary fan blower with a new fan condition, 22 kW exhaust 40 m long, and the percentage of air leaks in the main fan area. The research was conducted on mine ventilation components in the form of a 37 kW auxiliary fan type blower with a 40 m long flexible duct located on XC-486 and a 22 kW exhaust fan with a 40 m long flexible duct located on XC-481 as well as for a 132 kW main fan located at CGRB-3, 75 kW main fan located at RM-3 CGT and RM-6 CGS Lower. In this study, primary data were used in the form of air velocity, dimensions of the leakage area holes, flexible duct distance, and tunnel dimension and secondary data in the form of air discharge from the fan specifications. Primary and secondary data processing is caried out in order to determine the air discharge which can later be calculated by the percentage of reduction and the area of leakage on the main fan. The percentage for the air reduction for the auxiliary fan with the 37 kW blower fan located at XC-481 which is 23,96%, and for a 22 kW exhaust fan which is a number 33,40% which based on this value, the two auxiliary fans did not meet the standard values determined by the company. The percentage of air leakage around the 132 kW main fan located at CGRB-3 is 0,23%, the 75 kW main fan located at RM-3 CGT is 0,97%, and the 75 kW main fan located at RM-6 CGS is 0,73. Based on this percentage value, the main fan still meets the standards set by the company. Abstrak. Pada area penambangan Ciguha yang berada di PT Aneka Tambang Tbk, UBPE Pongkor, Kabupaten Bogor, Provinsi Jawa Barat terjadi penurunan kuantitas udara pada sistem ventilasi tambang. Penurunan kuantitas udara terjadi pada auxiliary fan beserta flexible duct yang menyebabkan adanya penurunan debit udara dan terdapat kebocoran udara pada area sekitar main fan yang menyebabkan udara keluar kembali. Batas maksimal penurunan debit udara yang ditentukan oleh perusahaan yaitu 15%. Oleh karena itu, perlu dilakukan penelitian dengan tujuan mengetahui penurunan debit udara pada auxiliary fan blower 37 kW dengan kondisi fan baru, exhaust 22 kW sepanjang 40 m, serta persentase kebocoran udara pada area main fan. Penelitian dilakukan pada komponen ventilasi tambang berupa auxiliary fan jenis blower 37 kW dengan panjang flexible duct 40 m yang terletak di XC-486 dan fan exhaust 22 kW dengan panjang flexible duct 40 m yang terletak d
摘要。位于西爪哇省茂物县Pongkor UBPE PT Aneka Tambang Tbk的Ciguha矿区，矿井通风系统中的空气量发生了变化。辅助风机的风量随着柔性风管的减少而减少，导致排风量减少，主风机周围区域出现漏风，导致空气回流。公司确定的减少空气排放的最大限度为15%。因此，有必要进行研究，了解37kw辅助风机风机在新风机工况下，22kw排风长度为40m时的风量减少情况，以及主风机区域的漏风百分比。对XC-486上40m柔性风道的37kw辅助风机式鼓风机和XC-481上40m柔性风道的22kw排风机以及位于CGRB-3的132 kW主风机、位于RM-3 CGT和RM-6 CGS Lower的75 kW主风机进行了矿井通风部件的研究。在本研究中，主要数据为风速、泄漏区孔尺寸、柔性风道距离、隧道尺寸，次要数据为风机规格的排风量。进行一次和二次数据处理以确定排风量，排风量随后可以通过减少百分比和主风机上的泄漏面积来计算。XC-481号37kw鼓风机辅助风机的减风量百分比为23.96%，22kw排风机的减风量百分比为33.40%，根据此值，两个辅助风机不符合公司确定的标准值。位于CGRB-3的132 kW主风机的漏风率为0.23%，位于RM-3 CGT的75 kW主风机的漏风率为0.97%，位于RM-6 CGS的75 kW主风机的漏风率为0.73%。根据这个百分比值，主风扇仍然符合公司设定的标准。Abstrak。帕达地区penambangan Ciguha yang berada di PT Aneka Tambang Tbk, UBPE Pongkor, Kabupaten茂物，省Jawa Barat terjadi penurunan kuantitas udara帕达系统通风，Tambang。Penurunan kuantitas udara terjadi pada辅助扇beserta柔性风管yang menyebabkan adanya Penurunan debit udara danterdapat kebocoran udara pada area sekitar主扇yang menyebabkan udara keluar kembali。Batas maksimal penurunan借记udara yang ditentukan oleh perushaan yitu 15%。Oleh karena, perlu dilakukan penelitian dengan tujuan mengetahui penurunan debit udara pada辅助风机风机37 kW dengan kondisi风机baru，排气22 kW sepanjang 40 m, serta代表kebocoran udara pada区域主风机。Penelitian dilakukan pada komponen ventilasi tambang berupa辅助风机jenis blower 37kw登干panjang柔性风管40m yang terletak di XC-486丹风机排气22kw登干panjang柔性风管40m yang terletak di XC-481 serta untuk主风机132kw yang terletak di CGRB-3，主风机75kw yang terletak di RM-3 CGT dan RM-6 CGS Bawah。帕德佩利特尼迪库纳坎的资料，主要是帕德佩利特的地质资料、帕德佩利特的地质资料、帕德佩利特的地质资料、帕德佩利特的地质资料、帕德佩利特的地质资料、帕德佩利特的地质资料。彭戈拉罕的资料，主要是根据dilakukan untuk, mengetahui, debit udara, yang, selanjutnya, digunakan untuk, menghitung，代表了penurunan, debit udara，区域，kebocoran，主要扇。代表派努努南辅辅风机邓安杰尼斯风机鼓风机37 kW米阳特拉塔迪XC-481雅图sebesar 23,96%，丹努图风机排风22kw sebesar 33,40%。可多瓦辅助风机，但风量不大，可达尼罗标准，可达尼罗标准，风量可达尼罗标准的15%。其中，kebocoran - udara - pa区sekitar主风机132 kW阳塔塔di CGRB-3 ytu sebesar 0.23%，主风机75 kW阳塔塔di RM-3 CGT sebesar 0.97%，单主风机75 kW阳塔塔di RM-6 CGS Bawah sebesar 0.73%。贝尔达斯坎尼莱代表了简洁，但不太稳定，主要是风扇的体积大小，标准阳的体积大小是15%。
{"title":"Kajian Perubahan Kuantitas Udara pada Sistem Ventilasi Penambangan Emas Underground di Area Penambangan Ciguha PT Antam Tbk, UBPE Pongkor, Kabupaten Bogor, Provinsi Jawa Barat","authors":"A. Purnawarman, Sriyanti, Elfida Moralista","doi":"10.29313/bcsme.v3i1.6167","DOIUrl":"https://doi.org/10.29313/bcsme.v3i1.6167","url":null,"abstract":"Abstract. In the Ciguha mining area which is located at PT Aneka Tambang Tbk, UBPE Pongkor, Bogor Regency, West Java Province, there is a change in the quantity of air in the mine ventilation system. A decrease in air quantity occurs in the auxiliary fan along with the flexible duct which causes a decrease in the air discharge and there is an air leakage in the area around the main fan which causes the air to come back out. The maximum limit for reducing air discharge determined by the company is 15%. Therefore, it is necessary to conduct research with the aim of knowing the decrease in air flow in the 37 kW auxiliary fan blower with a new fan condition, 22 kW exhaust 40 m long, and the percentage of air leaks in the main fan area. The research was conducted on mine ventilation components in the form of a 37 kW auxiliary fan type blower with a 40 m long flexible duct located on XC-486 and a 22 kW exhaust fan with a 40 m long flexible duct located on XC-481 as well as for a 132 kW main fan located at CGRB-3, 75 kW main fan located at RM-3 CGT and RM-6 CGS Lower. In this study, primary data were used in the form of air velocity, dimensions of the leakage area holes, flexible duct distance, and tunnel dimension and secondary data in the form of air discharge from the fan specifications. Primary and secondary data processing is caried out in order to determine the air discharge which can later be calculated by the percentage of reduction and the area of leakage on the main fan. The percentage for the air reduction for the auxiliary fan with the 37 kW blower fan located at XC-481 which is 23,96%, and for a 22 kW exhaust fan which is a number 33,40% which based on this value, the two auxiliary fans did not meet the standard values determined by the company. The percentage of air leakage around the 132 kW main fan located at CGRB-3 is 0,23%, the 75 kW main fan located at RM-3 CGT is 0,97%, and the 75 kW main fan located at RM-6 CGS is 0,73. Based on this percentage value, the main fan still meets the standards set by the company. \u0000Abstrak. Pada area penambangan Ciguha yang berada di PT Aneka Tambang Tbk, UBPE Pongkor, Kabupaten Bogor, Provinsi Jawa Barat terjadi penurunan kuantitas udara pada sistem ventilasi tambang. Penurunan kuantitas udara terjadi pada auxiliary fan beserta flexible duct yang menyebabkan adanya penurunan debit udara dan terdapat kebocoran udara pada area sekitar main fan yang menyebabkan udara keluar kembali. Batas maksimal penurunan debit udara yang ditentukan oleh perusahaan yaitu 15%. Oleh karena itu, perlu dilakukan penelitian dengan tujuan mengetahui penurunan debit udara pada auxiliary fan blower 37 kW dengan kondisi fan baru, exhaust 22 kW sepanjang 40 m, serta persentase kebocoran udara pada area main fan. Penelitian dilakukan pada komponen ventilasi tambang berupa auxiliary fan jenis blower 37 kW dengan panjang flexible duct 40 m yang terletak di XC-486 dan fan exhaust 22 kW dengan panjang flexible duct 40 m yang terletak d","PeriodicalId":187584,"journal":{"name":"Bandung Conference Series: Mining Engineering","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121425914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-28DOI: 10.29313/bcsme.v3i1.5404
Arrmandha Alghifari, Iswandaru, Elfida Moralista
Abstract. Limestone mining activities at PT Akarna Marindo include digging-loading and hauling activities, this activity is very important in mining activities because it involves achieving production targets. The problem in this study was not achieving the production target of 20,000 tons/month, because of this a technical study was carried out on loading and hauling equipment aimed at calculating actual production, knowing the factors that influence actual production, knowing match factors, and knowing efforts to increase production. The research was conducted in the mining area at location A, by observing the activities of digging, loading and transporting 1 Excavator PC-200 and 2 DT Hino FM 260 JD. The data collected is primary data including road geometry, number of digging-loading and hauling equipment, productive work time, cycle time of digging-loading and hauling equipment, inhibition time, in-situ density, loose density, swell factor and fill factor. Secondary data includes production targets, administrative maps, topography, geology, annual rainfall, specifications for digging and hauling equipment. Production of digging and loading equipment is 13.605,9 tons/month and transportation equipment is 13.521,1 tons/month, with an MF value of 0.83 (MF < 1). The production results did not reach the production target of 20,000 tons/month, the reasons for not achieving the production target were due to time constraints, not ideal road geometry, and less than optimal speed of the conveyance. Because of this, improvements were made to the road geometry, work efficiency and the cycle time of the transportation equipment, the results of the improvements were able to increase the production of the transportation equipment to 20.208,75 tons/month. Abstrak. Kegiatan penambangan batu gamping di PT Akarna Marindo meliputi aktivitas gali-muat dan angkut, aktivitas ini merupakan hal yang sangat penting dalam kegiatan penambangan karena menyangkut ketercapaian target produksi. Permasalahan dalam penelitian ini adalah tidak tercapainya target produksi sebesar 20.000 ton/bulan, karena itu dilakukan kajian secara teknis alat-gali muat dan angkut bertujuan untuk menghitung produksi aktual, mengetahui faktor-faktor yang memengaruhi produksi aktual, mengetahui match factor, dan mengetahui upaya untuk meningkatkan produksi. Penelitian dilakukan pada area penambangan lokasi A, dengan mengamati aktivitas penggalian, pemuatan dan pengangkutan 1 alat gali-muat Excavator PC-200 dan 2 alat angkut DT Hino FM 260 JD. Data yang dikumpulkan adalah data primer meliputi geometri jalan, jumlah alat gali-muat dan angkut, waktu kerja produktif, waktu edar alat gali-muat dan angkut, waktu hambatan, density insitu, density loose, swell factor dan fill factor. Data sekunder meliputi target produksi, peta administrasi, topografi, geologi, curah hujan tahunan, spesifikasi alat gali-muat dan angkut. Produksi alat gali-muat 13.605,9 ton/bulan dan alat angkut 13.521,1 ton/bulan, denga
摘要。PT Akarna Marindo的石灰石开采活动包括挖掘-装载和运输活动，这一活动在采矿活动中非常重要，因为它涉及到生产目标的实现。本次研究的问题是没有达到2万吨/月的生产目标，因此对装载和运输设备进行了技术研究，旨在计算实际产量，了解影响实际产量的因素，了解匹配因素，了解增产力度。研究在A矿区进行，观察了1台PC-200挖掘机和2台DT Hino FM 260 JD的挖掘、装载和运输活动。采集的数据为原始数据，包括道路几何形状、挖装拖设备数量、生产作业时间、挖装拖设备周期时间、抑制时间、原位密度、松散密度、膨胀系数和填充系数。次要数据包括生产目标、行政地图、地形、地质、年降雨量、挖掘和运输设备的规格。掘装设备产量为13.605.9吨/月，运输设备产量为13.52.1吨/月，MF值为0.83 (MF < 1)。生产结果未达到2万吨/月的生产目标，未达到生产目标的原因是时间限制、道路几何形状不理想、运输速度未达到最佳。因此，改进了道路几何形状，工作效率和运输设备的周期时间，改进的结果能够将运输设备的产量增加到20.208,75吨/月。Abstrak。Kegiatan penambangan batu gamping di PT Akarna Marindo meliputi aktivitas gali-muat danangkut, aktivitas ini merupakan hal yang sangat penting dalam Kegiatan penambangan karena menyangkut ketercapa目标产品。Permasalahan dalam penelitian ini adalah tidak tercapainya目标产量为2万吨/bulan, karena itu dilakukan kajian secara teknis alat-gali mukat - alat-gali mukat - angkut bertujuan untuk menghitung producksi aktual, menggetahui factor - factor - yang mengengaruhi producksi aktual, menggetahui match factor, dan menggetahui upaya untuk mengkatkan producksi akil。Penelitian dilakukan pada area penambangan lokasi A, dengan mengamati aktivitas pengangkutan, pemuatan dan pengangkutan 1 alatgali - mut挖掘机PC-200丹2 alatangkut DT Hino FM 260 JD。数据yang dikumpulkan adalah数据primer meliputi geometri jalan, jumlah alat gali-muat dan angkut, waktu kerja producttif, waktu edar alat gali-muat dan angkut, waktu hambatan，密度原位，密度松散，膨胀因子和填充因子。数据检索:目标产品，peta administration，地形，地质，curah hujan ta湖南，物种，alat gali-muat and angkut。产量为13.605吨/bulan，产量为13.521吨/bulan，产量为13.521吨/bulan，产量为0.83吨/bulan(产量< 1). Hasil产量为2.50万吨/bulan，产量为2.000吨/bulan，产量为2.000吨/bulan，产量为2.32万吨/bulan，产量为2.32万吨/bulan，产量为2.32万吨/bulan，产量为2.32万吨/bulan，产量为2.31万吨/bulan，产量为2.31万吨/bulan，产量为2.31万吨/bulan，产量为2.31万吨/bulan，产量为2.31万吨/bulan，产量为2.31万吨/bulan，产量为2.31万吨/bulan，产量为2.31万吨/bulan，产量为2.31万吨/bulan，产量为2.31万吨/bulan，产量为2.31万吨/bulan，产量为2.31万吨/bulan。Oleh karena itu dilakukan perbaikan geometri jalan, efisiensi kerja dan循环时间alat angkut, hasil perbaikan mampu meningkatkan产品duksi alat angkut menjadi 20.208,75吨/bulan。
{"title":"Kajian Teknis Produksi Alat Gali-Muat dan Angkut pada Penambangan Batu Gamping PT Akarna Marindo di Desa Cipatat Kecamatan Cipatat, Kabupaten Bandung Barat, Provinsi Jawa Barat","authors":"Arrmandha Alghifari, Iswandaru, Elfida Moralista","doi":"10.29313/bcsme.v3i1.5404","DOIUrl":"https://doi.org/10.29313/bcsme.v3i1.5404","url":null,"abstract":"Abstract. Limestone mining activities at PT Akarna Marindo include digging-loading and hauling activities, this activity is very important in mining activities because it involves achieving production targets. The problem in this study was not achieving the production target of 20,000 tons/month, because of this a technical study was carried out on loading and hauling equipment aimed at calculating actual production, knowing the factors that influence actual production, knowing match factors, and knowing efforts to increase production. The research was conducted in the mining area at location A, by observing the activities of digging, loading and transporting 1 Excavator PC-200 and 2 DT Hino FM 260 JD. The data collected is primary data including road geometry, number of digging-loading and hauling equipment, productive work time, cycle time of digging-loading and hauling equipment, inhibition time, in-situ density, loose density, swell factor and fill factor. Secondary data includes production targets, administrative maps, topography, geology, annual rainfall, specifications for digging and hauling equipment. Production of digging and loading equipment is 13.605,9 tons/month and transportation equipment is 13.521,1 tons/month, with an MF value of 0.83 (MF < 1). The production results did not reach the production target of 20,000 tons/month, the reasons for not achieving the production target were due to time constraints, not ideal road geometry, and less than optimal speed of the conveyance. Because of this, improvements were made to the road geometry, work efficiency and the cycle time of the transportation equipment, the results of the improvements were able to increase the production of the transportation equipment to 20.208,75 tons/month. \u0000Abstrak. Kegiatan penambangan batu gamping di PT Akarna Marindo meliputi aktivitas gali-muat dan angkut, aktivitas ini merupakan hal yang sangat penting dalam kegiatan penambangan karena menyangkut ketercapaian target produksi. Permasalahan dalam penelitian ini adalah tidak tercapainya target produksi sebesar 20.000 ton/bulan, karena itu dilakukan kajian secara teknis alat-gali muat dan angkut bertujuan untuk menghitung produksi aktual, mengetahui faktor-faktor yang memengaruhi produksi aktual, mengetahui match factor, dan mengetahui upaya untuk meningkatkan produksi. Penelitian dilakukan pada area penambangan lokasi A, dengan mengamati aktivitas penggalian, pemuatan dan pengangkutan 1 alat gali-muat Excavator PC-200 dan 2 alat angkut DT Hino FM 260 JD. Data yang dikumpulkan adalah data primer meliputi geometri jalan, jumlah alat gali-muat dan angkut, waktu kerja produktif, waktu edar alat gali-muat dan angkut, waktu hambatan, density insitu, density loose, swell factor dan fill factor. Data sekunder meliputi target produksi, peta administrasi, topografi, geologi, curah hujan tahunan, spesifikasi alat gali-muat dan angkut. Produksi alat gali-muat 13.605,9 ton/bulan dan alat angkut 13.521,1 ton/bulan, denga","PeriodicalId":187584,"journal":{"name":"Bandung Conference Series: Mining Engineering","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126555246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-28DOI: 10.29313/bcsme.v3i1.6231
Taufiq Maulana Akbar, Iswandaru, Noor Fauzi Isniarno
Abstract. PT Silva Andia Utama is a company engaged in the andesite mining industry, using the Quarry mining method. PT Silva Andia Utama has set a production target of 637.2 BCM/day or 95.18 BCM/hour. However, the production target was not achieved due to several factors, one of which is the road geometry factor in the field including road width, road slope, cross slope, superelevation, and bend radius. this also affects the use of fuel in dump truck engines so there may be a potential for swelling in operational costs, especially in terms of fuel costs. Therefore, it is necessary to study the geometry of the mining road so that production targets are achieved and maximize fuel use and minimize operational costs, especially fuel costs. This research was conducted by observing the hauling process from the loading point to the dumping point with a distance of 0.60 km and divided into 23 road segments. The actual data taken includes road width, road slope, cross slope, superelevation, corner radius, cycle time, productive time, fill factor, swell factor, and fuel consumption of mechanical devices. Then calculations for the production of loading and transportation equipment, fuel consumption, fuel ratio, and fuel costs are carried out so that the actual calculation results are compared with the calculations after repairs following Ministerial Decree 1827 K/30/Mem/2018 and the American Association of State Highway and Transportation Officials (AASHTO). Based on the calculations, the average production of the means of transportation is 86.76 BCM/hour with fuel consumption of 5.62 liters/hour for the means of transportation. The actual average fuel ratio of the means of transportation of 0.26 liters/BCM and the actual fuel consumption per trip of the means of transportation is 1.06 liters/rite. The actual fuel cost of the conveyance is Rp. 16,113,000. After re-evaluating the road geometry following the Ministerial Decree 1827 K/30/MEM/2018 standard by changing the slope from 13.42% - 21.22% to a maximum of 12% so that the travel time for transportation equipment becomes faster. For the production of transportation equipment after the repair of 108.54 BCM/hour, there was an increase of 26.25%, the fuel consumption of the transportation equipment after the repair was 4.45 liters/hour there was a decrease of 20.82%, and the fuel consumption per iteration after the repair was 0. 66 liter/rite decreased 37.73%. The fuel ratio after repairs for transportation equipment is 0.16 liters/BCM and for transportation equipment fuel costs after repairs are Rp. 10,136,622 decreased by 37.09%. Abstrak. PT Silva Andia Utama merupakan salah satu perusahaan yang bergerak dalam industri pertambangan bahan galian batu andesit dengan menggunakan metode penambangan Quarry. PT Silva Andia Utama menetapkan target produksi sebesar 637,2 BCM/hari atau 95,18 BCM/jam. Akan tetapi, target produksi tersebut tidak tercapai dikarenakan beberapa faktor salah satunya yaitu faktor geom
摘要PT Silva Andia Utama是一家从事安山岩采矿行业的公司，采用采石场采矿方法。PT Silva Andia Utama将生产目标设定为637.2亿立方米/天或95.18亿立方米/小时。然而，由于几个因素的影响，未能达到生产目标，其中一个因素是现场的道路几何因素，包括道路宽度、道路坡度、交叉坡度、超高标高和弯道半径。这也会影响自卸卡车发动机的燃料使用，因此可能会增加运营成本，尤其是燃料成本。因此，有必要研究采矿道路的几何形状，以实现生产目标，最大限度地利用燃料，最大限度地降低运营成本，特别是燃料成本。本研究通过观察从装载点到倾卸点的运输过程，距离为0.60 km，分为23个路段。实际采集的数据包括道路宽度、道路坡度、横向坡度、超标高、转角半径、循环时间、生产时间、填充系数、膨胀系数、机械装置的油耗等。然后对装载和运输设备的生产、燃料消耗、燃料比和燃料成本进行计算，以便将实际计算结果与根据第1827 K/30/Mem/2018号部长级法令和美国国家公路和运输官员协会(AASHTO)进行维修后的计算进行比较。经计算，交通工具的平均产量为86.76 BCM/小时，交通工具的燃油消耗量为5.62升/小时。交通工具的实际平均燃油比为0.26升/BCM，交通工具每趟实际油耗为1.06升/BCM。运输的实际燃料费用为16 113 000卢比。根据部长法令1827 K/30/MEM/2018标准重新评估道路几何形状，将坡度从13.42% - 21.22%更改为最大12%，从而使运输设备的行驶时间变得更快。修复后的运输设备产量为108.54 BCM/h，增加26.25%，修复后的运输设备油耗为4.45升/小时，减少20.82%，修复后的每次迭代油耗为0。66升/升下降37.73%。运输设备修理后的燃料比为0.16升/BCM，运输设备修理后的燃料成本为10,136,622卢比，减少了37.09%。Abstrak。PT Silva Andia Utama merupakan salah satu perusahaan yang bergerak dalam industri pertambangan bahan galian batu and desdengan menggunakan mede penambangan Quarry。PT Silva Andia Utama menetapkan的目标产量为637,2 BCM/hari，而95,18 BCM/jam。Akan tetapi，目标产品是tersebut tidak tercapai dikarenakan beberakan fakto salah satunya yitu faktor geometri jalan yang ada di lapangan meliputi lebar jalan, kemiringan jalan, cross slope，超级elevasi dan jari-jari tikungan。Hal ini juga mempengaruhi penggunaan bahan bakar pada mesin自卸卡车sehinga sangat mungkin memoriliki潜在的terjadi pembengkakan pada biaya操作khususnya bagian biaya bahan bakar。Oleh karena图，diperlukan kajian mengenai几何，jalan tambang agar目标产品，tercapai dan memaksimalkan penggunaan bahan bakar, serat minialisir pengeluaran biaya，操作khususnya padbiaya bahan bakar。Penelitian ini dilakukan dengan mengamati处理拖运达里装货点menuju倾倒点dengan jarak 60公里丹特巴吉menjadi 23段jalan。数据yang diambil secara aktual meliputi lebar jalan, kemiringan jalan，交叉坡度，超海拔，jari-jari tikungan，周期时间，waktu product，填充因子，膨胀因子，dan konsumsi bahan bakar alat mekanis。Kemudian dilakukan perhitungan产品，konsumsi bahan bakar，燃料比和燃料成本，Kemudian perhitungan实际dibandingkan dengan perhitungan setelah perbaikan sesuai dengan标准Kemudian K/30/Mem/2018丹美国国家公路和交通官员协会(AASHTO)。Berdasarkan perhitungan, diperoleh rata-rata producksi alat angkut sebesar 86,76 BCM/jam dengan konsumsi bahan bakar untuk alat angkut sebesar 5,62升/jam。Untuk按比例燃料比实际为0.26升/BCM，而konsumsi bahan bakar每升/BCM，实际为1.06升/BCM。燃料费实际为1,6113,000卢比。Setelah dilakukan evaluasi kembali terkait dengan geometri jalan sesuai dengan standard kempmen 1827 K/30/Mem/2018 dengan mengubah kemiringan dari 13,42% - 21,22% menjadi maksimal 12% sehinga waktu tempuh alat angkut menjadi lebih cepat。 摘要。PT Silva Andia Utama是一家从事安山岩采矿行业的公司，采用采石场采矿方法。PT Silva Andia Utama将生产目标设定为637.2亿立方米/天或95.18亿立方米/小时。然而，由于几个因素的影响，未能达到生产目标，其中一个因素是现场的道路几何因素，包括道路宽度、道路坡度、交叉坡度、超高标高和弯道半径。这也会影响自卸卡车发动机的燃料使用，因此可能会增加运营成本，尤其是燃料成本。因此，有必要研究采矿道路的几何形状，以实现生产目标，最大限度地利用燃料，最大限度地降低运营成本，特别是燃料成本。本研究通过观察从装载点到倾卸点的运输过程，距离为0.60 km，分为23个路段。实际采集的数据包括道路宽度、道路坡度、横向坡度、超标高、转角半径、循环时间、生产时间、填充系数、膨胀系数、机械装置的油耗等。然后对装载和运输设备的生产、燃料消耗、燃料比和燃料成本进行计算，以便将实际计算结果与根据第1827 K/30/Mem/2018号部长级法令和美国国家公路和运输官员协会(AASHTO)
{"title":"Kajian Pengaruh Geometri Jalan Terhadap Konsumsi Bahan Bakar Alat Angkut pada Jalan Tambang Quarry Batu Andesit di PT Silva Andia Utama Desa Giri Asih, Kecamatan Batujajar, Kabupaten Bandung Barat, Provinsi Jawa Barat","authors":"Taufiq Maulana Akbar, Iswandaru, Noor Fauzi Isniarno","doi":"10.29313/bcsme.v3i1.6231","DOIUrl":"https://doi.org/10.29313/bcsme.v3i1.6231","url":null,"abstract":"Abstract. PT Silva Andia Utama is a company engaged in the andesite mining industry, using the Quarry mining method. PT Silva Andia Utama has set a production target of 637.2 BCM/day or 95.18 BCM/hour. However, the production target was not achieved due to several factors, one of which is the road geometry factor in the field including road width, road slope, cross slope, superelevation, and bend radius. this also affects the use of fuel in dump truck engines so there may be a potential for swelling in operational costs, especially in terms of fuel costs. Therefore, it is necessary to study the geometry of the mining road so that production targets are achieved and maximize fuel use and minimize operational costs, especially fuel costs. This research was conducted by observing the hauling process from the loading point to the dumping point with a distance of 0.60 km and divided into 23 road segments. The actual data taken includes road width, road slope, cross slope, superelevation, corner radius, cycle time, productive time, fill factor, swell factor, and fuel consumption of mechanical devices. Then calculations for the production of loading and transportation equipment, fuel consumption, fuel ratio, and fuel costs are carried out so that the actual calculation results are compared with the calculations after repairs following Ministerial Decree 1827 K/30/Mem/2018 and the American Association of State Highway and Transportation Officials (AASHTO). Based on the calculations, the average production of the means of transportation is 86.76 BCM/hour with fuel consumption of 5.62 liters/hour for the means of transportation. The actual average fuel ratio of the means of transportation of 0.26 liters/BCM and the actual fuel consumption per trip of the means of transportation is 1.06 liters/rite. The actual fuel cost of the conveyance is Rp. 16,113,000. After re-evaluating the road geometry following the Ministerial Decree 1827 K/30/MEM/2018 standard by changing the slope from 13.42% - 21.22% to a maximum of 12% so that the travel time for transportation equipment becomes faster. For the production of transportation equipment after the repair of 108.54 BCM/hour, there was an increase of 26.25%, the fuel consumption of the transportation equipment after the repair was 4.45 liters/hour there was a decrease of 20.82%, and the fuel consumption per iteration after the repair was 0. 66 liter/rite decreased 37.73%. The fuel ratio after repairs for transportation equipment is 0.16 liters/BCM and for transportation equipment fuel costs after repairs are Rp. 10,136,622 decreased by 37.09%. \u0000Abstrak. PT Silva Andia Utama merupakan salah satu perusahaan yang bergerak dalam industri pertambangan bahan galian batu andesit dengan menggunakan metode penambangan Quarry. PT Silva Andia Utama menetapkan target produksi sebesar 637,2 BCM/hari atau 95,18 BCM/jam. Akan tetapi, target produksi tersebut tidak tercapai dikarenakan beberapa faktor salah satunya yaitu faktor geom","PeriodicalId":187584,"journal":{"name":"Bandung Conference Series: Mining Engineering","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121123403","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-28DOI: 10.29313/bcsme.v3i1.6040
Muhammad Rizky Amendra, Iswandaru, Noor Fauzi Isniarno
Abstract. PT Karunia Alam Investama is a coal mining company located in Hajran Village, Batin xxiv District, Batanghari Regency, Jambi Province. The applied mining system is an open pit mining system with top loading and its loading pattern. The loading process is carried out using the Hitachi zaxis excavator and the transport people using the Scania P360 Dump Truck. The hauling distance from the mining front to the dumping area is 150 ±. The problem that occurs is that the production target of 88385.9 BCM/month has not been achieved from the actual calculation of overburden production, based on the calculation results it can be seen that the production is 76038.77 BCM/month. The data collected is in the form of conveyor load time, conveyance cycle time, swelling factor, bowl filling factor, roads, work resistance, mechanical device specifications. Efforts were made to achieve the production target, namely by increasing the effective working time from the time constraint so that the work efficiency of the conveyance increased from 60.39% to 64.59% and the addition of 1 unit of Dump Truck Scania P360 conveyance. so that production increased from 76038.77 BCM/month to 92957.24 BCM/month. Abstrak. PT Karunia Alam Investama merupakan sebuah perusahaan pertambangan batubara yang berlokasi Desa Hajran Kecamatan Batin xxiv, Kabupaten Batanghari, Provinsi Jambi. Sistem penambangan yang diterapkan adalah sistem tambang terbuka dengan dan pola pemuatannya yaitu top loading. Proses pemuatan dilakukan dengan menggunakan Excavator hitachi zaxis dan peroses pengangkutan menggunakan Dump Truck Scania P360 . Jarak angkut dari front penambangan menuju dumping area 150 ±. Permasalahan yang terjadi adalah belum tercapainya target produksi sebesar 88385,9 BCM/Bulan dari perhitungan produksi overburden dilakukan secara aktual, berdasarkan hasil perhitungan dapat bahwa produksi sebesar 76038,77 BCM/Bulan. Data yang dikumpulkan berupa waktu edar alat muat, waktu edar alat angkut, faktor pengembangan, faktor pengisian mangkuk, jalan, hambatan kerja, spesifikasi alat mekanis. Upaya yang dilakukan agar target produksi tercapai yaitu dengan meningkatkan waktu kerja efektif dari waktu hambatan sehingga efisiensi kerja alat angkut meningkat dari 60,39% menjadi 64,59% dan penambahan 1 unit alat angkut Dump Truck Scania P360. sehingga produksinya meningkat dari 76038,77 BCM/Bulan menjadi 92957,24 BCM/Bulan.
摘要。PT Karunia Alam Investama是一家煤矿公司，位于占碑省Batanghari县Batin xxiv区Hajran村。所应用的开采系统为露天顶载开采系统及顶载方式。装载过程使用日立zaxis挖掘机进行，运输人员使用斯堪尼亚P360自卸车。采场前方至排土区的牵引距离为150±。出现的问题是，从覆岩产量的实际计算来看，没有达到88385.9 BCM/月的生产目标，根据计算结果可以看出，产量为76038.77 BCM/月。收集的数据以输送机载荷时间、输送周期时间、膨胀系数、钵式填充系数、道路、工作阻力、机械装置规格的形式。努力实现生产目标，即在时间约束的基础上增加有效工作时间，使运输车的工作效率从60.39%提高到64.59%，增加1台斯堪尼亚P360自卸卡车运输车。因此，产量从76038.77亿立方米/月增加到92957.24亿立方米/月。Abstrak。PT Karunia Alam Investama merupakan sebuah perusahaan pertambangan batubara yang berlokasi Desa Hajran Kecamatan Batin xxiv, Kabupaten Batanghari，占比省。系统penambangan yang diiterapkan adalah系统tambang terbuka dengan dan pola pemuatannya yyitu顶部加载。彭钢库坦孟古那坎挖掘机日立zaxis丹斯彭钢库坦孟古那坎自卸卡车斯堪尼亚P360。加叻安库特达里前penambangan menuju倾倒区150±。Permasalahan yang terjadi adalah belum tercapainya目标产品duksi sebesar 88385,9 BCM/Bulan dari perhitungan产品duksi sebesar覆盖层，berdasarkan hasil perhitungan dapat bahwa产品duksi sebesar 76038,77 BCM/Bulan。数据yang dikumpulkan berupa waktu edar alat muat, waktu edar alat angkut, factor pengembangan, factor pengisian mangkuk, jalan, hambatan kerja，种kasi alat mekanis。Upaya yang dilakukan琼脂靶产品tercapai yitu dengan meningkatkan waktu kerja efektif dari waktu hambatan seingga efisiensi kerja alat angkut meningkat dari 60,39% menjadi 64,59% dan penambahan 1单元alat angkut自卸卡车Scania P360。76038,77 BCM/Bulan menjadi 92957,24 BCM/Bulan。
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Pub Date : 2023-01-28DOI: 10.29313/bcsme.v3i1.5652
Muhammad Fu'ad, Elfida Moralista, Noor Fauzi Isniarno
Abstract. The Conveyor is a tool to move material from one place to another efficiently. Conveyor structures are made of steel that is subject to corrosion caused by certain conditions such as environmental conditions. Corrosion can cause thickness reduction and reduce the remaining life of the Conveyor structure. In this study, the Conveyor structure consists of 3 segments with a total of 27 Test points along 114 meters. This study aims to determine the type of corrosion, corrosion control, Corrosion Rate, and Remaining Service Life of the Conveyor structure. The research methodology used is to measure the thickness reduction on the Conveyor structure with the Ultrasonic Thickness Gauge TT 130. This research area has environmental conditions, namely air temperature around 26,7OC – 28,4OC, rainfall around 56,50 mm – 482,80 mm, and the highest relative humidity is 89,3%. The type of corrosion that occurs in the Conveyor structure is uniform corrosion. The corrosion control method uses a Coating method with a Thre layer system. The Coating method for Primer Coating uses Seaguard 5000, Intermediate Coating uses Sherglass FF, and Top Coating uses aliphatic acrylic modified polyurethane. Conveyor structure Corrosion Rate ranges from 0,19 - 0,34 mm/year and based on the relative corrosion resistance of steel is included in the good category. The service life of the Conveyor structure is 7 years and the Remaining Service Life is between 6,41 – 8,89 years. So that there are 48% of Test points that are not reach the design life of 15 years. Keywords: Conveyor Structure, Carbon Steel, Coating, Corrosion Rate, Remaining Service Life Abstrak. Conveyor merupakan alat untuk memindahkan suatu material dari satu tempat ke tempat lainnya secara efisien. Struktur Conveyor terbuat dari bahan baja yang rawan mengalami korosi yang disebabkan oleh kondisi lingkungan sekitar. Korosi dapat menyebabkan pengurangan ketebalan dan mengurangi sisa umur pakai struktur Conveyor, sehingga diperlukan adanya kegiatan pengecekan secara berkala terhadap korosi agar dapat mencegah terjadinya korosi. Penelitian ini dilakukan pada struktur Conveyor yang terdiri dari 3 segmen dengan jumlah 27 Test point sepanjang 114 meter. Penelitian bertujuan untuk mengetahui jenis korosi, Pengendalian korosi, laju korosi dan sisa umur pakai pada struktur Conveyor. Metodologi dalam penelitian adalah pengukuran pengurangan ketebalan pada struktur Conveyor dengan alat Ultrasonic Thickness Gauge TT 130. Daerah penelitian memiliki kondisi lingkungan yaitu temperatur udara sekitar 26,7OC – 28,4OC, curah hujan sekitar 56,50 mm – 482,80 mm, dan kelembaban relatif dengan nilai tertinggi yaitu 89,3%. Jenis korosi yang terjadi pada struktur Conveyor adalah korosi merata. Metode pengendalian korosi menggunakan metode Coating dengan sistem Three layers. Metode Coating untuk Primer Coating menggunakan Seaguard 5000, Intermediate Coating menggunakan Sherglass FF, dan Top Coating menggunakan aliphatic acryl
摘要。输送机是一种有效地将物料从一个地方移动到另一个地方的工具。输送机结构是由钢制成的，受到某些条件如环境条件的腐蚀。腐蚀会导致厚度减小，降低输送机结构的剩余寿命。在本研究中，输送机结构由3段组成，沿114米共27个测试点。本研究旨在确定腐蚀类型、腐蚀控制、腐蚀速率和输送机结构的剩余使用寿命。采用的研究方法是用TT 130超声波测厚仪测量输送机结构的减厚。研究区环境条件为气温26.7℃~ 28.4℃，降雨量56.50 mm ~ 482.80 mm，最高相对湿度89.3%。输送机结构中发生的腐蚀类型为均匀腐蚀。腐蚀控制方法采用三层体系的涂层方法。底漆涂布方法为Seaguard 5000，中间层涂布方法为Sherglass FF，面漆涂布方法为脂族丙烯酸改性聚氨酯。输送机结构腐蚀速率范围为0.19 - 0.34 mm/年，并根据钢材的相对耐腐蚀性列入良好类别。输送机结构使用寿命为7年，剩余使用寿命为6,41 - 8,89年。因此有48%的测试点没有达到15年的设计寿命。关键词:输送机结构，碳钢，涂层，腐蚀速率，剩余使用寿命传送带可在高温下输送物料，可在高温下输送物料，可在高温下输送物料。输送带，输送带，输送带，输送带，输送带，输送带，输送带，输送带，输送带Korosi dapat menyebabkan pengurangan ketebalan dan mengurangi sisa umur pakai结构输送机，sehinga diperlukan adanya kegiatan pengecekan secara berkala terhadap Korosi agar dapat menegah terjadinya Korosi。Penelitian ini dilakukan padadstruktur输送机yang terdiri dari 3段dengan jumlah 27测试点sepanjang 114米。peneltian bertujuan untuk mengetahui jenis korosi, Pengendalian korosi, laju korosi, sisa umur pakai patada结构输送机。[方法]dellam penelitian adalah penguin penguin企鹅企鹅企鹅企鹅企鹅企鹅企鹅企鹅企鹅企鹅企鹅企鹅企鹅企鹅企鹅企鹅企鹅企鹅企鹅企鹅企鹅企鹅企鹅企鹅企鹅企鹅Daerah penelitian memiliki kondisi lingkungan yitu温度udara sekitar 26,7℃- 28,4℃，curah hujan sekitar 56,50 mm - 482,80 mm, dan kelembaban相对于dengan nilai tertinggi yitu 89,3%。Jenis korosi yang terjadi pada structurr输送机adalah korosi merata。胶层胶层胶层胶层胶层胶层胶层胶层。涂装方法:底漆蒙古纳坎Seaguard 5000，中间漆蒙古纳坎Sherglass FF，单面漆蒙古纳坎脂肪族丙烯酸改性聚氨酯。拉ju korosi结构输送机berkisar antara 0,19 - 0,34 mm/tahun dan berdasarkan ketahanan korosi相对baja termasuk kedalam kategori好。乌尔巴凯结构输送机7塔洪，但sisa乌尔巴凯berkisar antara 6,41 - 8,89塔洪。星河水电站48,15%试验点杨达达水电站15,15 %塔河水电站。Kata Kunci:结构输送机，Laju Korosi, Sisa Umur Pakai
{"title":"Remaining Service Life Discharge Conveyor E pada Tambang Batubara PT XYZ di Kabupaten Merangin Provinsi Jambi","authors":"Muhammad Fu'ad, Elfida Moralista, Noor Fauzi Isniarno","doi":"10.29313/bcsme.v3i1.5652","DOIUrl":"https://doi.org/10.29313/bcsme.v3i1.5652","url":null,"abstract":"Abstract. The Conveyor is a tool to move material from one place to another efficiently. Conveyor structures are made of steel that is subject to corrosion caused by certain conditions such as environmental conditions. Corrosion can cause thickness reduction and reduce the remaining life of the Conveyor structure. In this study, the Conveyor structure consists of 3 segments with a total of 27 Test points along 114 meters. This study aims to determine the type of corrosion, corrosion control, Corrosion Rate, and Remaining Service Life of the Conveyor structure. The research methodology used is to measure the thickness reduction on the Conveyor structure with the Ultrasonic Thickness Gauge TT 130. This research area has environmental conditions, namely air temperature around 26,7OC – 28,4OC, rainfall around 56,50 mm – 482,80 mm, and the highest relative humidity is 89,3%. The type of corrosion that occurs in the Conveyor structure is uniform corrosion. The corrosion control method uses a Coating method with a Thre layer system. The Coating method for Primer Coating uses Seaguard 5000, Intermediate Coating uses Sherglass FF, and Top Coating uses aliphatic acrylic modified polyurethane. Conveyor structure Corrosion Rate ranges from 0,19 - 0,34 mm/year and based on the relative corrosion resistance of steel is included in the good category. The service life of the Conveyor structure is 7 years and the Remaining Service Life is between 6,41 – 8,89 years. So that there are 48% of Test points that are not reach the design life of 15 years. \u0000 \u0000Keywords: Conveyor Structure, Carbon Steel, Coating, Corrosion Rate, Remaining Service Life \u0000 \u0000Abstrak. Conveyor merupakan alat untuk memindahkan suatu material dari satu tempat ke tempat lainnya secara efisien. Struktur Conveyor terbuat dari bahan baja yang rawan mengalami korosi yang disebabkan oleh kondisi lingkungan sekitar. Korosi dapat menyebabkan pengurangan ketebalan dan mengurangi sisa umur pakai struktur Conveyor, sehingga diperlukan adanya kegiatan pengecekan secara berkala terhadap korosi agar dapat mencegah terjadinya korosi. Penelitian ini dilakukan pada struktur Conveyor yang terdiri dari 3 segmen dengan jumlah 27 Test point sepanjang 114 meter. Penelitian bertujuan untuk mengetahui jenis korosi, Pengendalian korosi, laju korosi dan sisa umur pakai pada struktur Conveyor. Metodologi dalam penelitian adalah pengukuran pengurangan ketebalan pada struktur Conveyor dengan alat Ultrasonic Thickness Gauge TT 130. Daerah penelitian memiliki kondisi lingkungan yaitu temperatur udara sekitar 26,7OC – 28,4OC, curah hujan sekitar 56,50 mm – 482,80 mm, dan kelembaban relatif dengan nilai tertinggi yaitu 89,3%. Jenis korosi yang terjadi pada struktur Conveyor adalah korosi merata. Metode pengendalian korosi menggunakan metode Coating dengan sistem Three layers. Metode Coating untuk Primer Coating menggunakan Seaguard 5000, Intermediate Coating menggunakan Sherglass FF, dan Top Coating menggunakan aliphatic acryl","PeriodicalId":187584,"journal":{"name":"Bandung Conference Series: Mining Engineering","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114731556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-28DOI: 10.29313/bcsme.v3i1.6076
Ahmad Heriansyah, Iswandaru, Noor Fauzi Isniarno
Abstract. PT Hillconjaya Sakti is a mining contractor company whose job is to strip coal and overburden with an overburden production target of 291.937 BCM/month on one of the PC 2000 excavator loaders with actual production of 266.043 BCM/month. The problem in this study is the design of the overburden stripping haul road which is not ideal causing less than optimal productivity. So it is necessary to evaluate the geometry of the road which aims to determine the ideal haul road design, compare the target production of the conveyance with production after repair and find out the cycle time of the conveyance in overburden hauling activities .The research was conducted in the overburden area from front loading to disposal at South T3 Pit with HD Sanyi SRT 95C conveyor with a capacity of 42 m2. The data collected is crossslope, superelevation and maximum speed of the conveyance under certain road grade conditions and also the T-junctions formed on the haul road.. In the research results there are many road segments that have not reached the ideal criteria in road geometry, especially in the front loading area. The results of calculating the ideal geometry are 21,33 m for one lane, 25,55 m for bends, 1,02 m super elevation and 42,6 cm crossslope. The results of road repairs will cause a decrease in the circulation time or cycle time of the transportation equipment, there is a change in the cycle time of the transportation equipment, namely 13,97 minutes, 14,3 minutes, 14,02 minutes, 14,05, 14,2 minutes to 10,48 minutes so there was an increase in the production of transportation equipment to 336.982 BCM/month. Abstrak. PT Hillconjaya sakti merupakan perusahaan kontraktor penambangan yang bertugas dalam melakukan pengupasan batubara dan overburden dengan target produksi overburden sebesar 291.937 BCM/bulan pada salah satu alat muat excavator PC 2000 dengan produksi aktual 266.043 BCM/bulan. Permasalahan dalam penelitian ini adalah perancangan pada jalan angkut pengupasan overburden yang tidak ideal menyebabkan produktivitas kurang optimal. Maka perlu dilakukan evaluasi geometri jalan yang bertujuan untuk melakukan penentuan rancangan jalan angkut ideal, melakukan perbandingan target produksi alat angkut dengan produksi setelah perbaikan dan Mengetahui cycle time dari alat angkut pada kegiatan pengangkutan overburden.. Penelitian dilakukan pada area overburden dari front loading ke disposal di Pit T3 Selatan dengan alat angkut HD Sanyi SRT 95C dengan kapasitas 42 m2. Data yang dikumpulkan adalah data crossslope, superelevasi serta kecepatan maksimal alat angkut dalam kondisi grade jalan tertentu dan juga pertigaan yang terbentuk pada jalan angkut.. Pada hasil penelitian terdapat banyak segmen jalan yang belum mencapai dari kriteria ideal pada geometri jalan khusus nya pada daerah front loading. Hasil dari perhitungan geometri ideal yaitu 21,33 m untuk satu jalur,jalur tikungan 25,55 m, superelevasi 1,02 m dan crossslope 42,6 cm. Hasil perbaikan jalan
摘要。PT hillconaya Sakti是一家采矿承包商公司，其工作是剥离煤炭和覆盖层，覆盖层产量目标为291.937 BCM/月，PC 2000挖掘机装载机的实际产量为266.043 BCM/月。本文研究的问题是覆盖层剥脱运输道路设计不理想，导致生产效率达不到最优。因此，有必要对道路的几何形状进行评价，以确定理想的运输道路设计，并将运输工具的目标产量与修复后的产量进行比较，找出运输工具在覆盖层运输活动中的周期时间。采用容量为42 m2的HD三易SRT 95C输送机对南T3坑覆盖层从前装到处置进行了研究。所收集的数据是在一定道路坡度条件下运输工具的横断面、超标高和最大速度，以及运输道路上形成的t形路口。在研究结果中，有许多路段在道路几何形状上没有达到理想的标准，特别是在前加载区域。计算结果表明，理想的几何形状为单车道21,33 m，弯道25,55 m，超高程1,02 m，横坡42,6 cm。道路维修的结果将导致运输设备的循环时间或周期时间的减少，运输设备的周期时间发生变化，即13.97分钟、14.3分钟、14.02分钟、14.05、14.2分钟到10.48分钟，因此运输设备的产量增加到336.982 BCM/月。Abstrak。PT hillconaya sakti merupakan perusahaan kontraktor penambangan yang bertugas dalam melakukan企鹅batubara dan覆盖层登干目标产品覆盖层sebesar 291.937 BCM/bulan pada salah satu alat muat挖掘机PC 2000登干产品实际266.043 BCM/bulan。企鹅覆盖，企鹅覆盖，企鹅覆盖，企鹅覆盖，企鹅覆盖，企鹅覆盖，企鹅覆盖，企鹅覆盖，企鹅覆盖，企鹅覆盖，企鹅覆盖，企鹅覆盖，企鹅覆盖，企鹅，企鹅，企鹅，企鹅，企鹅，企鹅，企鹅，企鹅，企鹅，企鹅，企鹅，企鹅，企鹅，企鹅，企鹅，企鹅，企鹅，企鹅，企鹅，企鹅，企鹅，企鹅，企鹅，企鹅，企鹅，企鹅，企鹅，企鹅，企鹅，企鹅，企鹅，企鹅，企鹅，企鹅Maka perlu dilakukan评估几何，jalan yang bertujuan untuk melakukan penentuan ranangan jangkut理想，melakukan perbandan目标产品，alat angkut dengan产品，setelah perbaikan dan Mengetahui循环时间，alat angkut paada kegiatan pengangkutan覆盖层。Penelitian dilakukan padas地区覆盖层dari前加载，如处置di Pit T3 Selatan dengan alat angkut HD Sanyi SRT 95C dengan kapasitas 42 m2。数据yang dikumpulkan adalah数据坡度，superelevasi serta keepatan maksimal alat angkut dalam kondisi等级jalan tertentu dan juga pertigaan yang terbentuk pada jalan angkut..Pada hasil penelitian terdapat banyak节，jalan yang belum mencapai dari标准，理想的Pada几何，jalan khusus nya Pada daerah前加载。哈西尔达里perhitungan的理想几何尺寸为21,33 m，高度为25,55 m，高度为1,02 m，坡度为42,6 cm。Hasil perbaikan jalan akan menyebabkan penurunan waktu edar atau周期时间alat angkut, terjadi perubahan周期时间alat angkut yitu 13,97 menit, 14,3 menit, 14,02 menit, 14,05, 14,2 menit menjadi 10,48 menit seingga terjadi peningkatan producksi alat angkut menjadi 336.982 BCM/Bulan。
{"title":"Pengaruh Geometri Jalan Tambang Terhadap Produksi Alat Angkut Tambang Batubara PT Hillconjaya Sakti Jobsite Sebuku Tanjung Coal, Kecamatan Pulau Laut Tengah, Kabupaten Kotabaru, Provinsi Kalimantan Selatan","authors":"Ahmad Heriansyah, Iswandaru, Noor Fauzi Isniarno","doi":"10.29313/bcsme.v3i1.6076","DOIUrl":"https://doi.org/10.29313/bcsme.v3i1.6076","url":null,"abstract":"Abstract. PT Hillconjaya Sakti is a mining contractor company whose job is to strip coal and overburden with an overburden production target of 291.937 BCM/month on one of the PC 2000 excavator loaders with actual production of 266.043 BCM/month. The problem in this study is the design of the overburden stripping haul road which is not ideal causing less than optimal productivity. So it is necessary to evaluate the geometry of the road which aims to determine the ideal haul road design, compare the target production of the conveyance with production after repair and find out the cycle time of the conveyance in overburden hauling activities .The research was conducted in the overburden area from front loading to disposal at South T3 Pit with HD Sanyi SRT 95C conveyor with a capacity of 42 m2. The data collected is crossslope, superelevation and maximum speed of the conveyance under certain road grade conditions and also the T-junctions formed on the haul road.. In the research results there are many road segments that have not reached the ideal criteria in road geometry, especially in the front loading area. The results of calculating the ideal geometry are 21,33 m for one lane, 25,55 m for bends, 1,02 m super elevation and 42,6 cm crossslope. The results of road repairs will cause a decrease in the circulation time or cycle time of the transportation equipment, there is a change in the cycle time of the transportation equipment, namely 13,97 minutes, 14,3 minutes, 14,02 minutes, 14,05, 14,2 minutes to 10,48 minutes so there was an increase in the production of transportation equipment to 336.982 BCM/month. \u0000Abstrak. PT Hillconjaya sakti merupakan perusahaan kontraktor penambangan yang bertugas dalam melakukan pengupasan batubara dan overburden dengan target produksi overburden sebesar 291.937 BCM/bulan pada salah satu alat muat excavator PC 2000 dengan produksi aktual 266.043 BCM/bulan. Permasalahan dalam penelitian ini adalah perancangan pada jalan angkut pengupasan overburden yang tidak ideal menyebabkan produktivitas kurang optimal. Maka perlu dilakukan evaluasi geometri jalan yang bertujuan untuk melakukan penentuan rancangan jalan angkut ideal, melakukan perbandingan target produksi alat angkut dengan produksi setelah perbaikan dan Mengetahui cycle time dari alat angkut pada kegiatan pengangkutan overburden.. Penelitian dilakukan pada area overburden dari front loading ke disposal di Pit T3 Selatan dengan alat angkut HD Sanyi SRT 95C dengan kapasitas 42 m2. Data yang dikumpulkan adalah data crossslope, superelevasi serta kecepatan maksimal alat angkut dalam kondisi grade jalan tertentu dan juga pertigaan yang terbentuk pada jalan angkut.. Pada hasil penelitian terdapat banyak segmen jalan yang belum mencapai dari kriteria ideal pada geometri jalan khusus nya pada daerah front loading. Hasil dari perhitungan geometri ideal yaitu 21,33 m untuk satu jalur,jalur tikungan 25,55 m, superelevasi 1,02 m dan crossslope 42,6 cm. Hasil perbaikan jalan ","PeriodicalId":187584,"journal":{"name":"Bandung Conference Series: Mining Engineering","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134395345","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-28DOI: 10.29313/bcsme.v3i1.5633
Alditiya Nurrosyidi, Solihin, Sri Widayati
Abstract. PT Bukit Asam, Tbk. is a coal commodity mining industry company located in Lawang Kidul District, Muara Enim Regency, South Sumatra Province. Data collection of coal products resulting from mining called mine brand. Mining is carried out from the Air Laya Mine pit (TAL), Muara Tiga Besar pit (MTB), and Bangko pit which produces 16 Mine brands namely AL 49, AL 51, AL 53, AL 55, AL 59, AL 61, AL 63, AL 65, AL 67HV, AL 71MV, AL 69HV, AL 71LV, BB 47, BB 51, BB 53, and MT 47. Mine brands must meet market brand criteria according to consumer needs. In May 2022, consumer demand for market brand BA 48 was 538,231 tons with criteria of total moisture ≤ 30%, ash content ≤ 8%, and calorific value ≥ 4,800 kcal/kg, and market brand BA 50 was 311,814 tons with criteria of total moisture ≤ 28%, ash content ≤ 7%, and calorific value ≥ 5,000 kcal/kg. To meet consumer demand, it is necessary to maximize coal blending carried out by the company, so a coal blending optimization simulation is carried out using the simplex method calculation in a linear program with POM-QM For Windows software as a tool for applying the simplex method. The results of BA 48 market brand coal blending obtained a proportion of 60.73% BB 51, and 39.27% MT 47 with total moisture parameters of 29.81%, ash content of 3.14%, and calorific value of 4,800 kcal/kg, while for BA 50 market brand coal blending obtained a proportion of 52.50% AL 49 and 47.50% BB 53 with total moisture parameters of 27.75%, ash content of 2.81%, and calorific value of 5,000 kcal/kg. Abstrak. PT. Bukit Asam, Tbk. merupakan perusahaan industri pertambangan komoditas batubara berlokasi di Kecamatan Lawang Kidul, Kabupaten Muara Enim, Provinsi Sumatera Selatan. Pengambilan data produk batubara hasil dari penambangan yang disebut mine brand. Penambangan dilakukan dari pit Tambang Air Laya (TAL), pit Muara Tiga Besar (MTB), dan pit Bangko yang menghasilkan 16 Mine brand yaitu AL 49, AL 51, AL 53, AL 55, AL 59, AL 61, AL 63, AL 65, AL 67HV, AL 71MV, AL 69HV, AL 71LV, BB 47, BB 51, BB 53, dan MT 47. Mine brand harus memenuhi kriteria market brand sesuai kebutuhan konsumen. Pada bulan Mei 2022 permintaan konsumen untuk market brand BA 48 sebanyak 538.231 ton dengan kriteria total kelembaban ≤ 30%, kandungan abu ≤ 8%, dan nilai kalori ≥ 4.800 kkal/kg, dan market brand BA 50 sebanyak 311.814 ton dengan kriteria total kelembaban ≤ 28%, kandungan abu ≤ 7%, dan nilai kalori ≥ 5.000 kkal/kg. Untuk memenuhi permintaan konsumen perlu memaksimalkan pencampuran batubara yang dilakukan oleh perusahaan, maka dilakukan simulasi optimasi pencampuran batubara yang dilakukan menggunakan perhitungan metode simpleks dalam program linier dengan software POM-QM For Windows sebagai alat penerapan metode simpleks. Hasil dari pencampuran batubara market brand BA 48 mendapatkan proporsi sebesar 60,73% BB 51, dan 39,27% MT 47 dengan parameter total kelembaban 29,81%, kandungan abu 3,14%, dan nilai kalori 4.800 kkal/kg, sedangkan untuk penc
摘要泰国武吉阿萨姆PT。是一家煤炭商品矿业公司，位于南苏门答腊省Muara Enim Regency的Lawang Kidul区。数据收集后产生的煤炭产品被称为矿山品牌。从Air Laya矿坑(TAL)、Muara Tiga Besar矿坑(MTB)和Bangko矿坑进行采矿，生产16个矿山品牌，即AL 49、AL 51、AL 53、AL 55、AL 59、AL 61、AL 63、AL 65、AL 67HV、AL 71MV、AL 69HV、AL 71LV、BB 47、BB 51、BB 53和MT 47。矿山品牌必须根据消费者需求符合市场品牌标准。2022年5月，市场品牌BA 48以总水分≤30%、灰分≤8%、发热量≥4800 kcal/kg为消费需求538231吨，市场品牌BA 50以总水分≤28%、灰分≤7%、发热量≥5000 kcal/kg为消费需求311814吨。为了满足用户需求，需要最大限度地实现企业配煤，因此以POM-QM For Windows软件为工具，利用单纯形法在线性程序中进行配煤优化仿真。BA 48市场品牌配煤的配煤比例为60.73%的BB 51和39.27%的MT 47，总水分参数为29.81%，灰分含量为3.14%，发热量为4800 kcal/kg; BA 50市场品牌配煤比例为52.50%的AL 49和47.50%的BB 53，总水分参数为27.75%，灰分含量为2.81%，发热量为5000 kcal/kg。Abstrak。泰国武吉阿萨姆PT. Bukit Asammerupakan perusahaan industri pertambangan komoditas batubara berlokasi di Kecamatan Lawang Kidul, Kabupaten Muara Enim，苏门答腊西拉丹省。Pengambilan数据产品batubara hasil dari penambangan yang disebut mine品牌。Penambangan dilakukan达里坑Tambang Air Laya (TAL)， Muara Tiga Besar坑(MTB)，丹坑Bangko yang menghasilkan 16矿牌yaitu AL 49, AL 51, AL 53, AL 55, AL 59, AL 61, AL 63, AL 65, AL 67HV, AL 71MV, AL 69HV, AL 71LV, BB 47, BB 51, BB 53，丹MT 47。矿山品牌harus纪念品标准市场品牌sesuai kebutuhan konsumen。巴达布兰美2022年二奶市场品牌BA 48 sebanyak 538.231吨灯箱标准总灯箱量≤30%，坎顿干布≤8%，丹尼来卡洛里≥4.800 kkal/kg，丹市场品牌BA 50 sebanyak 311.814吨灯箱标准总灯箱量≤28%，坎顿干布≤7%，丹尼来卡洛里≥5.000 kkal/kg。Untuk memenhi permintaan konsumen perlu memaksimalkan pencampuran batubara yang dilakukan mongunakan perhitungan simpleks dalam程序linier dengan软件POM-QM For Windows sebagai alpenerapan simpleks。Hasil dari pencampuran batubara市场品牌BA 48 mendapatkan proporsi sebesar 60,73% BB 51, dan 39,27% MT 47登干参数total kelembaban 29,81%， kandungan约3,14%，dan nilai kalori 4.800 kkal/kg, sedangkan untuk pencampuran batubara市场品牌BA 50 mendapatkan proporsi sebesar 52,50% AL 49 dan 47,50% BB 53登干参数total kelembaban 27,75%， kandungan约2,81%，dan nilai kalori 5.000 kkal/kg。
{"title":"Optimasi Pencampuran Batubara Dalam Upaya Meningkatkan Kualitas di PT Bukit Asam, Tbk. Tanjung Enim, Sumatera Selatan","authors":"Alditiya Nurrosyidi, Solihin, Sri Widayati","doi":"10.29313/bcsme.v3i1.5633","DOIUrl":"https://doi.org/10.29313/bcsme.v3i1.5633","url":null,"abstract":"Abstract. PT Bukit Asam, Tbk. is a coal commodity mining industry company located in Lawang Kidul District, Muara Enim Regency, South Sumatra Province. Data collection of coal products resulting from mining called mine brand. Mining is carried out from the Air Laya Mine pit (TAL), Muara Tiga Besar pit (MTB), and Bangko pit which produces 16 Mine brands namely AL 49, AL 51, AL 53, AL 55, AL 59, AL 61, AL 63, AL 65, AL 67HV, AL 71MV, AL 69HV, AL 71LV, BB 47, BB 51, BB 53, and MT 47. Mine brands must meet market brand criteria according to consumer needs. In May 2022, consumer demand for market brand BA 48 was 538,231 tons with criteria of total moisture ≤ 30%, ash content ≤ 8%, and calorific value ≥ 4,800 kcal/kg, and market brand BA 50 was 311,814 tons with criteria of total moisture ≤ 28%, ash content ≤ 7%, and calorific value ≥ 5,000 kcal/kg. To meet consumer demand, it is necessary to maximize coal blending carried out by the company, so a coal blending optimization simulation is carried out using the simplex method calculation in a linear program with POM-QM For Windows software as a tool for applying the simplex method. The results of BA 48 market brand coal blending obtained a proportion of 60.73% BB 51, and 39.27% MT 47 with total moisture parameters of 29.81%, ash content of 3.14%, and calorific value of 4,800 kcal/kg, while for BA 50 market brand coal blending obtained a proportion of 52.50% AL 49 and 47.50% BB 53 with total moisture parameters of 27.75%, ash content of 2.81%, and calorific value of 5,000 kcal/kg. \u0000Abstrak. PT. Bukit Asam, Tbk. merupakan perusahaan industri pertambangan komoditas batubara berlokasi di Kecamatan Lawang Kidul, Kabupaten Muara Enim, Provinsi Sumatera Selatan. Pengambilan data produk batubara hasil dari penambangan yang disebut mine brand. Penambangan dilakukan dari pit Tambang Air Laya (TAL), pit Muara Tiga Besar (MTB), dan pit Bangko yang menghasilkan 16 Mine brand yaitu AL 49, AL 51, AL 53, AL 55, AL 59, AL 61, AL 63, AL 65, AL 67HV, AL 71MV, AL 69HV, AL 71LV, BB 47, BB 51, BB 53, dan MT 47. Mine brand harus memenuhi kriteria market brand sesuai kebutuhan konsumen. Pada bulan Mei 2022 permintaan konsumen untuk market brand BA 48 sebanyak 538.231 ton dengan kriteria total kelembaban ≤ 30%, kandungan abu ≤ 8%, dan nilai kalori ≥ 4.800 kkal/kg, dan market brand BA 50 sebanyak 311.814 ton dengan kriteria total kelembaban ≤ 28%, kandungan abu ≤ 7%, dan nilai kalori ≥ 5.000 kkal/kg. Untuk memenuhi permintaan konsumen perlu memaksimalkan pencampuran batubara yang dilakukan oleh perusahaan, maka dilakukan simulasi optimasi pencampuran batubara yang dilakukan menggunakan perhitungan metode simpleks dalam program linier dengan software POM-QM For Windows sebagai alat penerapan metode simpleks. Hasil dari pencampuran batubara market brand BA 48 mendapatkan proporsi sebesar 60,73% BB 51, dan 39,27% MT 47 dengan parameter total kelembaban 29,81%, kandungan abu 3,14%, dan nilai kalori 4.800 kkal/kg, sedangkan untuk penc","PeriodicalId":187584,"journal":{"name":"Bandung Conference Series: Mining Engineering","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114518036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-28DOI: 10.29313/bcsme.v3i1.5693
Gumilar Rayana, Sri Widayati, Solihin
Abstract. Acid mine drainage can affect water quality in the area which requires an authority to improve water quality in mining areas. So that the neutralization of acid mine drainage must be carried out, one of which is using fly ash. Fly Ash has alkaline properties with a pH value between 4.5 to 12. The pH value of fly ash is determined by the sulfur content of the coal parent material. Therefore fly ash can increase the pH value of acid mine water. The research method used in this study is the active method by mixing fly ash into the water in the settling pond which has a pH value of less than 7, it aims to neutralize the pH value in the settling pond. From the previous testing, it was found that the effect of fly ash on neutralizing acid mine drainage required a fly ash dose of 60 gr/L with a pH value of 7.57, then a linear regression calculation was performed to determine the optimal value of 58.35 gr/L for a pH value of 7. Then The dose was neutralized to acid mine drainage which has a pH value of less than 7, so that a dose value was obtained within 31 days of 632.21 gr/L or 381.532 kg/month. In addition to the effect of fly ash on the pH value, a calculation of the effect of fly ash with the same dose of neutralizing the pH value on the decrease in Fe and Mn levels was also carried out. The effect of decreasing the previous Fe content with an average value of 7.33 mg/L becomes 5.57 mg/L, and the effect of the previous Mn content with an average value of 4.32 mg/L becomes 3.56 mg/L Abstrak. Air asam tambang dapat mempengaruhi kualitas air di daerah tersebut yang membutuhkan suatu kewenangan untuk dapat memperbaiki kualitas air di daerah pertambangan. Sehingga kegiatan penetralan air asam tambang harus dilakukan salah satunya menggunakan Fly ash. Fly Ash memiliki sifat alkalin yang memiliki nilai pH antara 4,5 sampai 12. Nilai pH yang dimiliki fly ash ditentukan oleh kandungan sulfur bahan induk batubara. Oleh karena itu fly ash dapat menaikan nilai pH air asam tambang. Berdasarkan latar belakang tersebut maka penelitian ini dilakukan untuk mengetahui pengaruh penggunaan fly ash terhadap proses penetralan air asam tambang. Metode penelitian yang digunakan pada penelitian ini yaitu metode aktif dengan cara mencampurkan fly ash ke dalam air di kolam pengendapan yang memiliki nilai pH kurang dari 7, hal tersebut bertujuan untuk dapat menetralkan nilai pH di kolam pengendapan Dari pengujian yang dilakukan bahwasannya pengaruh fly ash terhadap penetralan air asam tambang dibutuhkan dosis fly ash sebesar 60 gr/L dengan nilai pH sebesar 7.57, lalu dilakukan perhitungan linier regresi untuk mengetahui nilai optimal sebesar 58.35 gr/L untuk nilai pH 7. Kemudian dosis tersebut dilakukan penetralan terhadap air asam tambang yang memiliki nilai pH kurang dari 7, sehingga didapatkan nilai dosis dalam waktu 31 hari sebesar 632.21 gr/L atau 381.532 kg/bulan. Selain pengaruh fly ash terhadap nilai pH, juga dilakukan perhitungan pengaruh fly ash denga
摘要。酸性矿井水会影响矿区水质，需要有关部门采取措施改善矿区水质。因此，必须对酸性矿井水进行中和，其中一种方法就是使用粉煤灰。粉煤灰具有碱性，pH值在4.5到12之间。粉煤灰的pH值由煤母质的硫含量决定。因此粉煤灰能提高酸性矿井水的pH值。本研究采用的研究方法是将粉煤灰掺入pH值小于7的沉降池水中的活性法，目的是中和沉降池的pH值。通过前期试验发现，粉煤灰中和酸性矿井水的效果需要在pH值为7.57时，粉煤灰用量为60 gr/L，然后通过线性回归计算，确定pH值为7时，粉煤灰的最佳用量为58.35 gr/L。然后将该剂量中和到pH值小于7的酸性矿井水中，使31天内的剂量值为632.21 gr/L或381.532 kg/月。除了粉煤灰对pH值的影响外，还计算了相同剂量的粉煤灰中和pH值对铁和锰水平降低的影响。前期平均降低7.33 mg/L的Fe含量的效果变为5.57 mg/L，前期平均降低4.32 mg/L的Mn含量的效果变为3.56 mg/L。Air asam am tambang dapat mempengaruhi kualitas Air di daerah tereran .但是yang membutuhkan suatu kewenangan untuk dapat memperbaiki kualitas Air di daerah pertambangan。sehinga kegiatan penetralan air asam tambang harus dilakukan salah satunya menggunakan飞灰。飞灰灰灰灰灰灰灰灰灰灰灰灰灰灰灰灰灰灰灰灰灰灰灰灰灰灰Nilai pH yang dimiliki粉煤灰ditentukan oleh kandungan硫bahan duk batubara。Oleh karena图飞灰dapat menaikan nilai pH空气asam tambang。Berdasarkan latar belakang tersebut maka penelitian ini dilakukan untuk mengetahui pengaruh penggunaan粉煤灰terhadap处理渗透空气asam tambang。中文翻译为:中文翻译为:中文翻译为:中文翻译为:中文翻译为:中文翻译为:中文翻译为:中文翻译为:中文翻译为:中文翻译为:中文翻译为:中文翻译为:中文翻译为:中文翻译为:中文翻译为:中文翻译为:中文翻译为:中文翻译为:lalu dilakukan perhitungan线性回归untuk mengetahui nilai最优sebesar 58.35 gr/L untuk nilai pH 7。Kemudian dosis tersebut dilakukan penetralan terhadap air asam tambang yang memiliki nilai pH kurang dari 7, sehinga didapatkan nilai dosis dalam waktu 31 hari sebesar 632.21 gr/L atau 381.532 kg/bulan。Selain pengaruh飞灰terhadap nilai pH, juga dilakukan perhitungan pengaruh飞灰dengan dosis yang sama dengan penetralan nilai pH terhadap penurunan kadar Fe dan kadar Mn。Pengaruh penurunan kadar Fe yang sebelumnya dengan nilai rata - rata 7.33 mg/L menjadi 5.56 mg/L, dan Pengaruh kadar Mn yang sebelumnya dengan nilai rata - rata 4.32 mg/L menjadi 3.56 mg/L
{"title":"Studi Pendahuluan Pengaruh Fly Ash pada Netralisasi Air Asam Tambang di Penambangan Batubara PT XYZ, Kabupaten Kutai Kartanegara, Provinsi Kalimantan Timur","authors":"Gumilar Rayana, Sri Widayati, Solihin","doi":"10.29313/bcsme.v3i1.5693","DOIUrl":"https://doi.org/10.29313/bcsme.v3i1.5693","url":null,"abstract":"Abstract. Acid mine drainage can affect water quality in the area which requires an authority to improve water quality in mining areas. So that the neutralization of acid mine drainage must be carried out, one of which is using fly ash. Fly Ash has alkaline properties with a pH value between 4.5 to 12. The pH value of fly ash is determined by the sulfur content of the coal parent material. Therefore fly ash can increase the pH value of acid mine water. The research method used in this study is the active method by mixing fly ash into the water in the settling pond which has a pH value of less than 7, it aims to neutralize the pH value in the settling pond. From the previous testing, it was found that the effect of fly ash on neutralizing acid mine drainage required a fly ash dose of 60 gr/L with a pH value of 7.57, then a linear regression calculation was performed to determine the optimal value of 58.35 gr/L for a pH value of 7. Then The dose was neutralized to acid mine drainage which has a pH value of less than 7, so that a dose value was obtained within 31 days of 632.21 gr/L or 381.532 kg/month. In addition to the effect of fly ash on the pH value, a calculation of the effect of fly ash with the same dose of neutralizing the pH value on the decrease in Fe and Mn levels was also carried out. The effect of decreasing the previous Fe content with an average value of 7.33 mg/L becomes 5.57 mg/L, and the effect of the previous Mn content with an average value of 4.32 mg/L becomes 3.56 mg/L \u0000Abstrak. Air asam tambang dapat mempengaruhi kualitas air di daerah tersebut yang membutuhkan suatu kewenangan untuk dapat memperbaiki kualitas air di daerah pertambangan. Sehingga kegiatan penetralan air asam tambang harus dilakukan salah satunya menggunakan Fly ash. Fly Ash memiliki sifat alkalin yang memiliki nilai pH antara 4,5 sampai 12. Nilai pH yang dimiliki fly ash ditentukan oleh kandungan sulfur bahan induk batubara. Oleh karena itu fly ash dapat menaikan nilai pH air asam tambang. Berdasarkan latar belakang tersebut maka penelitian ini dilakukan untuk mengetahui pengaruh penggunaan fly ash terhadap proses penetralan air asam tambang. Metode penelitian yang digunakan pada penelitian ini yaitu metode aktif dengan cara mencampurkan fly ash ke dalam air di kolam pengendapan yang memiliki nilai pH kurang dari 7, hal tersebut bertujuan untuk dapat menetralkan nilai pH di kolam pengendapan Dari pengujian yang dilakukan bahwasannya pengaruh fly ash terhadap penetralan air asam tambang dibutuhkan dosis fly ash sebesar 60 gr/L dengan nilai pH sebesar 7.57, lalu dilakukan perhitungan linier regresi untuk mengetahui nilai optimal sebesar 58.35 gr/L untuk nilai pH 7. Kemudian dosis tersebut dilakukan penetralan terhadap air asam tambang yang memiliki nilai pH kurang dari 7, sehingga didapatkan nilai dosis dalam waktu 31 hari sebesar 632.21 gr/L atau 381.532 kg/bulan. Selain pengaruh fly ash terhadap nilai pH, juga dilakukan perhitungan pengaruh fly ash denga","PeriodicalId":187584,"journal":{"name":"Bandung Conference Series: Mining Engineering","volume":"118 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131562080","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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