Akhmadiyeva Nazym Kanatovna, Abdulvaliyev Rinat Abdulvaliyev, A. Akcil, Manapova Alfiyam
Due to limited reserves of bauxite, nepheline can be used in the industrial production of alumina in Kazakhstan. The most promising deposit is the nepheline syenites of the Kubasadyr deposit. Currently, there is no effective technology for processing nepheline ores. High energy intensity, capital intensity and significant emissions into the atmosphere are the main drawbacks of the conventional technology of nepheline ore processing by sintering method. Efficient hydrochemical processing of nepheline requires pre-enrichment with the separation of a part of silica. According to the existing technology of chemical enrichment in an alkaline solution at a temperature of 280⁰С, the silica extraction degree is no more than 36%. A pre-roasting at 500⁰C is used to increase the extraction rate of silica and this process permits an increase in the extraction rate to 65%. The paper presents the results of the chemical activation of nepheline syenites in a solution of sodium hydrogen carbonate. The optimum conditions of activation are determined. Activation at a temperature of 280 ⁰C resulted in a change in the phase composition of the feedstock and increases the degree of silica extraction up to 65,5%. The results obtained showed the possibility in principle of using hydrochemical enrichment technology for the resulting high-quality nepheline concentrate and replacing the energy-intensive roasting process.
{"title":"Pre-activation of nepheline before the enrichment","authors":"Akhmadiyeva Nazym Kanatovna, Abdulvaliyev Rinat Abdulvaliyev, A. Akcil, Manapova Alfiyam","doi":"10.31643/2023/6445.43","DOIUrl":"https://doi.org/10.31643/2023/6445.43","url":null,"abstract":"Due to limited reserves of bauxite, nepheline can be used in the industrial production of alumina in Kazakhstan. The most promising deposit is the nepheline syenites of the Kubasadyr deposit. Currently, there is no effective technology for processing nepheline ores. High energy intensity, capital intensity and significant emissions into the atmosphere are the main drawbacks of the conventional technology of nepheline ore processing by sintering method. Efficient hydrochemical processing of nepheline requires pre-enrichment with the separation of a part of silica. According to the existing technology of chemical enrichment in an alkaline solution at a temperature of 280⁰С, the silica extraction degree is no more than 36%. A pre-roasting at 500⁰C is used to increase the extraction rate of silica and this process permits an increase in the extraction rate to 65%. The paper presents the results of the chemical activation of nepheline syenites in a solution of sodium hydrogen carbonate. The optimum conditions of activation are determined. Activation at a temperature of 280 ⁰C resulted in a change in the phase composition of the feedstock and increases the degree of silica extraction up to 65,5%. The results obtained showed the possibility in principle of using hydrochemical enrichment technology for the resulting high-quality nepheline concentrate and replacing the energy-intensive roasting process.","PeriodicalId":29905,"journal":{"name":"Kompleksnoe Ispolzovanie Mineralnogo Syra","volume":"17 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69368368","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}
Fischer D.E, Kosparmakova Samal Akhmetaly, Ph.D. Student, Fischer Dametken
The methodology of the research that was used to evaluate the comparative results of surface mixes with a nominal maximum aggregate size of 12.5mm is presented in this paper. Also presented are the recommended Ndes values for C-level and D-level mixes, which are designed to handle traffic levels of 3-30 Million and greater than 30 Million ESALs, respectively. In order to determine the amount of asphalt that was present, asphalt concrete mixes were fabricated utilizing the Superpave design process at Ndes levels of 50, 75, 100, and 125 gyrations. Using the Asphalt Mixture Performance Tester instrument, we were able to determine the dynamic modulus (E*) at the design asphalt content for a number of different gyration levels. The E* data and related binder properties were used as input in the AASHTO Darwin-ME software to anticipate the rutting and fatigue performance of the mixtures. This was accomplished by assuming a model pavement section and appropriate traffic levels. In order to determine which Ndes are most appropriate, relative performance indicators for rutting and fatigue have been developed and plotted against asphalt content. The Ndes value of 85 gyrations was found to be ideal for both surface mixes after extensive research.
{"title":"A Study of Superpave Design Gyrations for High Traffic Surface Mixtures","authors":"Fischer D.E, Kosparmakova Samal Akhmetaly, Ph.D. Student, Fischer Dametken","doi":"10.31643/2023/6445.38","DOIUrl":"https://doi.org/10.31643/2023/6445.38","url":null,"abstract":"The methodology of the research that was used to evaluate the comparative results of surface mixes with a nominal maximum aggregate size of 12.5mm is presented in this paper. Also presented are the recommended Ndes values for C-level and D-level mixes, which are designed to handle traffic levels of 3-30 Million and greater than 30 Million ESALs, respectively. In order to determine the amount of asphalt that was present, asphalt concrete mixes were fabricated utilizing the Superpave design process at Ndes levels of 50, 75, 100, and 125 gyrations. Using the Asphalt Mixture Performance Tester instrument, we were able to determine the dynamic modulus (E*) at the design asphalt content for a number of different gyration levels. The E* data and related binder properties were used as input in the AASHTO Darwin-ME software to anticipate the rutting and fatigue performance of the mixtures. This was accomplished by assuming a model pavement section and appropriate traffic levels. In order to determine which Ndes are most appropriate, relative performance indicators for rutting and fatigue have been developed and plotted against asphalt content. The Ndes value of 85 gyrations was found to be ideal for both surface mixes after extensive research.","PeriodicalId":29905,"journal":{"name":"Kompleksnoe Ispolzovanie Mineralnogo Syra","volume":"42 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69368348","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}
It is acknowledged that titanium and magnesium production wastes pollute the environment, which in the sequence they create an environmental hazard for soils, groundwater and vegetation. Meanwhile, these wastes can be considered secondary resources of rare and rare earth metals. In recent years, the processing of industrial waste has been a new trend for the extraction of rare and rare earth metals, which can partially cover the demand in case of their disposal. This article is devoted to a review of the available literature and articles on the extraction of rare metals from titanium-magnesium production waste using various processing methods. Methods of their utilization are discussed with an emphasis on the extraction of rare and rare earth metals. This review considered waste processing technologies of various pyrometallurgical and hydrometallurgical processes. Technological schemes of various leaching and extraction processes were presented to give a holistic view of waste processing and extraction of rare metals contained in them. In general, the article contains an overview of the works published on the extraction of rare metals, such as REE (rare earth elements), niobium, tantalum and vanadium.
{"title":"A review of recovery technologies of rare and rare earth metals from wastes generated in titanium and magnesium production","authors":"Toishybek Azamat Magauiyauly, Baigenzhenov Omirserik Sabyrzhanovich, Turan Mehmet Deniz, Kurbanova Bayan, Merkibayev Yerik, Serikuly","doi":"10.31643/2023/6445.41","DOIUrl":"https://doi.org/10.31643/2023/6445.41","url":null,"abstract":"It is acknowledged that titanium and magnesium production wastes pollute the environment, which in the sequence they create an environmental hazard for soils, groundwater and vegetation. Meanwhile, these wastes can be considered secondary resources of rare and rare earth metals. In recent years, the processing of industrial waste has been a new trend for the extraction of rare and rare earth metals, which can partially cover the demand in case of their disposal. This article is devoted to a review of the available literature and articles on the extraction of rare metals from titanium-magnesium production waste using various processing methods. Methods of their utilization are discussed with an emphasis on the extraction of rare and rare earth metals. This review considered waste processing technologies of various pyrometallurgical and hydrometallurgical processes. Technological schemes of various leaching and extraction processes were presented to give a holistic view of waste processing and extraction of rare metals contained in them. In general, the article contains an overview of the works published on the extraction of rare metals, such as REE (rare earth elements), niobium, tantalum and vanadium.","PeriodicalId":29905,"journal":{"name":"Kompleksnoe Ispolzovanie Mineralnogo Syra","volume":"1 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69368356","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}
N. Bakhytuly, A. Kenzhegulov, М. Nurtanto, A. Aliev, E. Kuldeev
The low coefficients of friction and wear rates of transition metal carbonitride make them excellent candidates for friction and wear applications. Coatings based on titanium carbonitride alloyed with Ta and Al were deposited using reactive magnetron sputtering on the surface of titanium VT1-0 and steel AISI 304. The effect of alloying titanium carbonitrides with Ta and Al and acetylene flow during deposition on the structure, composition, and tribological properties of the coating was studied. TiAlCN and TiTаCN coatings were deposited in various acetylene flows along with stable argon and nitrogen flows. Scanning electron microscopy, optical microscopy, X-ray phase analysis, and sliding wear test (ball-on-disk method) in two media were used to study the resulting coatings. The average coefficient of friction of the coating under friction without lubrication varied in the range of 0.13-0.85 and under friction with lubrication in the range of 0.0015-0.081. From the point of view of wear rate, it is shown that the most wear-resistant coating under friction conditions with and without lubrication is TiAlCN-2. The resulting coatings can be useful as protection for machine parts or tools that are subject to friction and wear.
{"title":"Microstructure and tribological study of TiAlCN and TiTaCN coatings","authors":"N. Bakhytuly, A. Kenzhegulov, М. Nurtanto, A. Aliev, E. Kuldeev","doi":"10.31643/2023/6445.45","DOIUrl":"https://doi.org/10.31643/2023/6445.45","url":null,"abstract":"The low coefficients of friction and wear rates of transition metal carbonitride make them excellent candidates for friction and wear applications. Coatings based on titanium carbonitride alloyed with Ta and Al were deposited using reactive magnetron sputtering on the surface of titanium VT1-0 and steel AISI 304. The effect of alloying titanium carbonitrides with Ta and Al and acetylene flow during deposition on the structure, composition, and tribological properties of the coating was studied. TiAlCN and TiTаCN coatings were deposited in various acetylene flows along with stable argon and nitrogen flows. Scanning electron microscopy, optical microscopy, X-ray phase analysis, and sliding wear test (ball-on-disk method) in two media were used to study the resulting coatings. The average coefficient of friction of the coating under friction without lubrication varied in the range of 0.13-0.85 and under friction with lubrication in the range of 0.0015-0.081. From the point of view of wear rate, it is shown that the most wear-resistant coating under friction conditions with and without lubrication is TiAlCN-2. The resulting coatings can be useful as protection for machine parts or tools that are subject to friction and wear.","PeriodicalId":29905,"journal":{"name":"Kompleksnoe Ispolzovanie Mineralnogo Syra","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47938398","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}
AADME-Tox qualities should be considered while designing/engineering a novel medicine because they are the primary cause of failures for candidate molecules in drug design development. Early examination of these features during medication creation might save time and money. ADME has played an important part in the drug engineering/design process throughout the last five decades. The ADME characteristics of apple constituents were determined using SwissADME webservers. The ADME profiles of the compounds were assessed, and most of them were deemed to be appropriate for further research. In-silico ADMET analysis has been shown to be an effective approach in drug engineering/design development. As a result, all compounds were tested for ADMET prediction, and the phytochemical constituents were shown to be acceptable drug-like molecules. More in vitro and in vivo research with our possible phytochemical compounds will be conducted in the near future to find a solution to cure from different diseases. We hope that the in-silico analysis will be useful in ongoing innovative medication discovery.
{"title":"ADME Webtool for Analysis of Selected Apple Phytochemical Constituents: A Comprehensive Integrated Online Platform","authors":"Khaldun AL Azzam, H. Rima","doi":"10.31643/2023/6445.25","DOIUrl":"https://doi.org/10.31643/2023/6445.25","url":null,"abstract":"AADME-Tox qualities should be considered while designing/engineering a novel medicine because they are the primary cause of failures for candidate molecules in drug design development. Early examination of these features during medication creation might save time and money. ADME has played an important part in the drug engineering/design process throughout the last five decades. The ADME characteristics of apple constituents were determined using SwissADME webservers. The ADME profiles of the compounds were assessed, and most of them were deemed to be appropriate for further research. In-silico ADMET analysis has been shown to be an effective approach in drug engineering/design development. As a result, all compounds were tested for ADMET prediction, and the phytochemical constituents were shown to be acceptable drug-like molecules. More in vitro and in vivo research with our possible phytochemical compounds will be conducted in the near future to find a solution to cure from different diseases. We hope that the in-silico analysis will be useful in ongoing innovative medication discovery.","PeriodicalId":29905,"journal":{"name":"Kompleksnoe Ispolzovanie Mineralnogo Syra","volume":"1 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69367124","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}
The work is aimed at diversifying existing mines for the extraction and processing of natural uranium through additional processing of spent blocks of uranium deposits with chemical solutions using the method of in-situ well leaching (ISL) in order to extract associated useful components. A feature of this technology is the use of the existing production infrastructure for the extraction of associated useful components in existing uranium mines, without significant capital investments in production infrastructure and mining operations. The technology of underground borehole leaching has been reliably developed in uranium deposits for decades. The fundamental similarity of the technology for the extraction of uranium and a number of associated useful components (APC) - by the ISR method, allows the use of spent ore fields of uranium deposits for the extraction of PPC. The use of ready-made technological infrastructure (wells, pipeline network, pumping equipment, control units, etc.) allows, due to savings on infrastructure costs, to obtain profitability when mining ore-bearing blocks with a content of recoverable components from ≤ 1 g/t, up to 0.1 g/t. Taking into account the indirect savings of significant costs for the reclamation of spent blocks, it will be profitable to mine blocks with a content of recoverable components up to 0.01 g/t. In view of the foregoing, this technology has a good prospect for implementation in production.
{"title":"The use of chlorine-containing agents in the processing of spent blocks of uranium deposits","authors":"T. Duisebayeva, A. Arbuz","doi":"10.31643/2023/6445.29","DOIUrl":"https://doi.org/10.31643/2023/6445.29","url":null,"abstract":"The work is aimed at diversifying existing mines for the extraction and processing of natural uranium through additional processing of spent blocks of uranium deposits with chemical solutions using the method of in-situ well leaching (ISL) in order to extract associated useful components. A feature of this technology is the use of the existing production infrastructure for the extraction of associated useful components in existing uranium mines, without significant capital investments in production infrastructure and mining operations. The technology of underground borehole leaching has been reliably developed in uranium deposits for decades. The fundamental similarity of the technology for the extraction of uranium and a number of associated useful components (APC) - by the ISR method, allows the use of spent ore fields of uranium deposits for the extraction of PPC. The use of ready-made technological infrastructure (wells, pipeline network, pumping equipment, control units, etc.) allows, due to savings on infrastructure costs, to obtain profitability when mining ore-bearing blocks with a content of recoverable components from ≤ 1 g/t, up to 0.1 g/t. Taking into account the indirect savings of significant costs for the reclamation of spent blocks, it will be profitable to mine blocks with a content of recoverable components up to 0.01 g/t. In view of the foregoing, this technology has a good prospect for implementation in production.","PeriodicalId":29905,"journal":{"name":"Kompleksnoe Ispolzovanie Mineralnogo Syra","volume":"1 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69367181","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}
V. N. Volodin, S. Trebukhov, A. Nitsenko, N. Burabayeva, X. Linnik
It was established based on the analysis of the results of published works and the results obtained by the authors that there is no information on the behavior and distribution of antimony chalcogenides - Sb2S3, Sb2Se3, Sb2Te3, as well as double systems - Sb2S3-Sb2Se3, Sb2S3-Sb2Te3 and Sb2Se3-Sb2Te3 under the vacuum processing conditions for polymetallic mattes performed at 1100-1250 °C and a vacuum of 15 - 0.7 kPa. It was found based on the saturated vapor pressure values for monochalcogenides that the vapor pressure of free antimony sulfide will be 58.95 kPa at 1100 °C, i.e. the lower limit of the technological interval, which indicates its complete transfer to the vapor phase when the mattes are evacuated; the vapor pressure of free antimony selenide at 1100 °C exceeds the atmospheric pressure value (101.3 kPa), and Sb2Se3 would be completely extracted into the vapor phase in vacuum; the boiling point of liquid antimony telluride at atmospheric pressure corresponds to 971 °C, and it would be extracted into the vapor phase under the conditions of matte evacuation. The thermodynamic evaporation characteristics of antimony chalcogenides were found. It was concluded based on the location of the boundaries of the liquid and vapor phase coexistence fields that it is impossible to separate binary systems of antimony chalcogenides into separate compounds in the process of one evaporation cycle – condensation, in binary systems. Different effects of pressure reduction over melts were found. Lowering the pressure from atmospheric one to 0.7 kPa in Sb2S3-Sb2Se3 system did not change the position of the boundaries of the liquid and vapor fields (L + V) under the temperature; field width (L+V) decreases with decreasing pressure in Sb2S3-Sb2Te3 system; the field width first decreases with temperature, then increases in system Sb2Se3- Sb2Te3. At the same time, the position of the boiling curves of antimony chalcogenide solutions indicates the complete transfer of compounds into the vapor phase under the conditions of matte distillation processing (at 1100-1250 °C) at atmospheric pressure which is important for assessment of the distribution of antimony and rare metals - selenium and tellurium by processed products.
{"title":"Distribution of antimonium chalcogenides under conditions of vacuum thermal processing of mattes","authors":"V. N. Volodin, S. Trebukhov, A. Nitsenko, N. Burabayeva, X. Linnik","doi":"10.31643/2023/6445.32","DOIUrl":"https://doi.org/10.31643/2023/6445.32","url":null,"abstract":"It was established based on the analysis of the results of published works and the results obtained by the authors that there is no information on the behavior and distribution of antimony chalcogenides - Sb2S3, Sb2Se3, Sb2Te3, as well as double systems - Sb2S3-Sb2Se3, Sb2S3-Sb2Te3 and Sb2Se3-Sb2Te3 under the vacuum processing conditions for polymetallic mattes performed at 1100-1250 °C and a vacuum of 15 - 0.7 kPa. It was found based on the saturated vapor pressure values for monochalcogenides that the vapor pressure of free antimony sulfide will be 58.95 kPa at 1100 °C, i.e. the lower limit of the technological interval, which indicates its complete transfer to the vapor phase when the mattes are evacuated; the vapor pressure of free antimony selenide at 1100 °C exceeds the atmospheric pressure value (101.3 kPa), and Sb2Se3 would be completely extracted into the vapor phase in vacuum; the boiling point of liquid antimony telluride at atmospheric pressure corresponds to 971 °C, and it would be extracted into the vapor phase under the conditions of matte evacuation. The thermodynamic evaporation characteristics of antimony chalcogenides were found. It was concluded based on the location of the boundaries of the liquid and vapor phase coexistence fields that it is impossible to separate binary systems of antimony chalcogenides into separate compounds in the process of one evaporation cycle – condensation, in binary systems. Different effects of pressure reduction over melts were found. Lowering the pressure from atmospheric one to 0.7 kPa in Sb2S3-Sb2Se3 system did not change the position of the boundaries of the liquid and vapor fields (L + V) under the temperature; field width (L+V) decreases with decreasing pressure in Sb2S3-Sb2Te3 system; the field width first decreases with temperature, then increases in system Sb2Se3- Sb2Te3. At the same time, the position of the boiling curves of antimony chalcogenide solutions indicates the complete transfer of compounds into the vapor phase under the conditions of matte distillation processing (at 1100-1250 °C) at atmospheric pressure which is important for assessment of the distribution of antimony and rare metals - selenium and tellurium by processed products.","PeriodicalId":29905,"journal":{"name":"Kompleksnoe Ispolzovanie Mineralnogo Syra","volume":"1 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69367208","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}
A. Protopopov, M. Protopopov, E. Suleimenov, Zh. Aimenov, R. Altynbekov
This article presents the results of production experiments to optimize the modes of silicon smelting in an industrial arc furnace. The main factors of the melting process are the size of the fractions of the charge components and the temperature regime of heating. The rate of charge heating in the reaction zone in the temperature range from 950 to 14100C has a special effect on productivity. In this temperature range, the formation of refractory silicon carbide on pieces of quartzite was established, which causes a drop in the magnitude of the electric current in the reaction zone and its freezing. The gornisage, which is formed, displaces the electrodes into the zone of greater charge electrical conductivity - up, which leads to an increase in silicon monoxide emissions through the reduced charge layer. Correction of such a process requires an increase in the temperatures in the reaction zone and the duration of the melt. A method has been developed for calculating the size of quartzite fractions, depending on the power of the furnace and the size of the reaction zone. An example of a simplified calculation is proposed.
{"title":"Study of silicon production process in ore-smelting furnace and optimization of technological process","authors":"A. Protopopov, M. Protopopov, E. Suleimenov, Zh. Aimenov, R. Altynbekov","doi":"10.31643/2023/6445.30","DOIUrl":"https://doi.org/10.31643/2023/6445.30","url":null,"abstract":"This article presents the results of production experiments to optimize the modes of silicon smelting in an industrial arc furnace. The main factors of the melting process are the size of the fractions of the charge components and the temperature regime of heating. The rate of charge heating in the reaction zone in the temperature range from 950 to 14100C has a special effect on productivity. In this temperature range, the formation of refractory silicon carbide on pieces of quartzite was established, which causes a drop in the magnitude of the electric current in the reaction zone and its freezing. The gornisage, which is formed, displaces the electrodes into the zone of greater charge electrical conductivity - up, which leads to an increase in silicon monoxide emissions through the reduced charge layer. Correction of such a process requires an increase in the temperatures in the reaction zone and the duration of the melt. A method has been developed for calculating the size of quartzite fractions, depending on the power of the furnace and the size of the reaction zone. An example of a simplified calculation is proposed.","PeriodicalId":29905,"journal":{"name":"Kompleksnoe Ispolzovanie Mineralnogo Syra","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47464531","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}
Тimur Т. Bekibayev, D. Bossinov, U. Zhapbasbayev, A.D. Kudaibergen, G. Ramazanova
The mismatch of the model and the topology of real objects is important in modeling technological processes, which is the purpose of this paper. The problem is considered when modeling hot oil pumping in the "Kasymov–Bolshoy Chagan" oil pipeline. In this problem, the topology of objects consists of the linear part of the pipeline and technological equipment (pumps and heating furnaces) of the stations. The accuracy of the simulation results is determined by the calculations of pressure and temperature in the oil pipeline. The pressure in the pipeline is created by pumps at the stations and is determined by the dependence of the pressure and efficiency of the pump on the oil flow rate. These characteristics change depending on the service life of the pump. The identification of the actual dependences of the pressure and efficiency of the pump on the oil flow rate was carried out by the regression analysis of experimental data. The pressure in the linear part is determined by the hydraulic resistance of the pipeline. The actual dependence of the hydraulic resistance coefficient on the Reynolds number and wall roughness was obtained by regression analysis of experimental data. The temperature in the oil pipeline is created at the stations by heating furnaces. The identification of the actual characteristics of the heating furnace was also found by regression analysis of the experimental data. The temperature distribution in the linear part is determined by the heat transfer of oil with the surrounding environment. An undefined parameter for calculating heat transfer is the soil thermal conductivity, which depends on the type of rock and the degree of soil moisture. The soil thermal conductivity is determined in such a way that at a given oil flow rate, oil temperatures at the beginning of the section and soil at the section, the calculated oil temperature at the end of the section has the smallest discrepancy with the actual one. Thus, the determination of the actual dependencies of the objects makes it possible to increase the accuracy of the results of hot pumping modeling and eliminates the mismatches of the model and the topology of the objects.
{"title":"Mismatch problem of the model and topology of oil pumping facilities","authors":"Тimur Т. Bekibayev, D. Bossinov, U. Zhapbasbayev, A.D. Kudaibergen, G. Ramazanova","doi":"10.31643/2023/6445.24","DOIUrl":"https://doi.org/10.31643/2023/6445.24","url":null,"abstract":"The mismatch of the model and the topology of real objects is important in modeling technological processes, which is the purpose of this paper. The problem is considered when modeling hot oil pumping in the \"Kasymov–Bolshoy Chagan\" oil pipeline. In this problem, the topology of objects consists of the linear part of the pipeline and technological equipment (pumps and heating furnaces) of the stations. The accuracy of the simulation results is determined by the calculations of pressure and temperature in the oil pipeline. The pressure in the pipeline is created by pumps at the stations and is determined by the dependence of the pressure and efficiency of the pump on the oil flow rate. These characteristics change depending on the service life of the pump. The identification of the actual dependences of the pressure and efficiency of the pump on the oil flow rate was carried out by the regression analysis of experimental data. The pressure in the linear part is determined by the hydraulic resistance of the pipeline. The actual dependence of the hydraulic resistance coefficient on the Reynolds number and wall roughness was obtained by regression analysis of experimental data. The temperature in the oil pipeline is created at the stations by heating furnaces. The identification of the actual characteristics of the heating furnace was also found by regression analysis of the experimental data. The temperature distribution in the linear part is determined by the heat transfer of oil with the surrounding environment. An undefined parameter for calculating heat transfer is the soil thermal conductivity, which depends on the type of rock and the degree of soil moisture. The soil thermal conductivity is determined in such a way that at a given oil flow rate, oil temperatures at the beginning of the section and soil at the section, the calculated oil temperature at the end of the section has the smallest discrepancy with the actual one. Thus, the determination of the actual dependencies of the objects makes it possible to increase the accuracy of the results of hot pumping modeling and eliminates the mismatches of the model and the topology of the objects.","PeriodicalId":29905,"journal":{"name":"Kompleksnoe Ispolzovanie Mineralnogo Syra","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47982568","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}
O. Besimbayeva, E. Khmyrova, M. Tutanova, N. Flindt, R. R. Sharafutdinov
The paper considers the possibilities of modern technologies and software that make it possible to create continuity of geomechanical monitoring of man-made objects from shooting in automatic mode, robotic surveillance systems, transmitting information over the Internet to cloud storage, to performing stability calculations, determining the parameters of displacement and deformation of slopes of ledges and sides of quarries. The development of modern technologies for collecting and processing information allows the use of artificial neural networks that are adapted for modeling geodetic deformations. Technogenic objects, which are very complex systems, have a huge number of external factors affecting the stability of the mountain range, so it becomes incredibly difficult to take into account and determine the amount of displacement and deformation. Due to the complexity and variety of influencing factors, it becomes necessary to use a new system for assessing the state of objects, called "neural networks". The training of such a system is based on the already available research results collected during the direct operation of industrial enterprises. Neural networks can become an alternative to various methods of describing deformation processes, especially in the continuous monitoring of man-made objects, where there is no a priori knowledge of the underlying deformation processes. For effective monitoring and forecasting of deformation processes at a mining enterprise, a multiparametric monitoring method is needed, which includes a comprehensive system based on GPS measurements, supplemented with data from sensors for changes in water level and changes in stresses and deformations of the array. The results of automated survey and data recording sent to the cloud storage are distributed using "Big Data" technology and analyzed by geoinformation systems. In turn, the adaptation of neural networks to model deformations allows specialists to obtain a good alternative to the description of structural deformations of the mountain range.
{"title":"Modern data analysis technologies used for geomechanical monitoring. Review","authors":"O. Besimbayeva, E. Khmyrova, M. Tutanova, N. Flindt, R. R. Sharafutdinov","doi":"10.31643/2023/6445.23","DOIUrl":"https://doi.org/10.31643/2023/6445.23","url":null,"abstract":"The paper considers the possibilities of modern technologies and software that make it possible to create continuity of geomechanical monitoring of man-made objects from shooting in automatic mode, robotic surveillance systems, transmitting information over the Internet to cloud storage, to performing stability calculations, determining the parameters of displacement and deformation of slopes of ledges and sides of quarries. The development of modern technologies for collecting and processing information allows the use of artificial neural networks that are adapted for modeling geodetic deformations. Technogenic objects, which are very complex systems, have a huge number of external factors affecting the stability of the mountain range, so it becomes incredibly difficult to take into account and determine the amount of displacement and deformation. Due to the complexity and variety of influencing factors, it becomes necessary to use a new system for assessing the state of objects, called \"neural networks\". The training of such a system is based on the already available research results collected during the direct operation of industrial enterprises. Neural networks can become an alternative to various methods of describing deformation processes, especially in the continuous monitoring of man-made objects, where there is no a priori knowledge of the underlying deformation processes. For effective monitoring and forecasting of deformation processes at a mining enterprise, a multiparametric monitoring method is needed, which includes a comprehensive system based on GPS measurements, supplemented with data from sensors for changes in water level and changes in stresses and deformations of the array. The results of automated survey and data recording sent to the cloud storage are distributed using \"Big Data\" technology and analyzed by geoinformation systems. In turn, the adaptation of neural networks to model deformations allows specialists to obtain a good alternative to the description of structural deformations of the mountain range.","PeriodicalId":29905,"journal":{"name":"Kompleksnoe Ispolzovanie Mineralnogo Syra","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49058110","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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