CIM Journal最新文献

{"title":"Tourmaline breccia pipes of the Giant Copper porphyry system: Extending the Cascadia porphyry district into southern British Columbia, Canada","authors":"W. T. Fischer, D. D. Marshall, J. Miller-Tait","doi":"10.1080/19236026.2023.2269522","DOIUrl":"https://doi.org/10.1080/19236026.2023.2269522","url":null,"abstract":"","PeriodicalId":197002,"journal":{"name":"CIM Journal","volume":"62 17","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139841288","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}

{"title":"Tourmaline breccia pipes of the Giant Copper porphyry system: Extending the Cascadia porphyry district into southern British Columbia, Canada","authors":"W. T. Fischer, D. D. Marshall, J. Miller-Tait","doi":"10.1080/19236026.2023.2269522","DOIUrl":"https://doi.org/10.1080/19236026.2023.2269522","url":null,"abstract":"","PeriodicalId":197002,"journal":{"name":"CIM Journal","volume":"90 20","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139781351","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}

{"title":"Safety of rope-guided conveyance systems","authors":"M. Greenway, S. R. Grobler","doi":"10.1080/19236026.2023.2267940","DOIUrl":"https://doi.org/10.1080/19236026.2023.2267940","url":null,"abstract":"","PeriodicalId":197002,"journal":{"name":"CIM Journal","volume":"91 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138978574","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}

{"title":"CanmetMINING diesel and BEV field test series: MacLean Engineering diesel and battery electric cassette truck","authors":"J. Le, M. Levesque, E. Acuña-Duhart, E. Tomini, A. Mohsenimanesh, H. Ribberink, A. Griffiths","doi":"10.1080/19236026.2023.2266351","DOIUrl":"https://doi.org/10.1080/19236026.2023.2266351","url":null,"abstract":"","PeriodicalId":197002,"journal":{"name":"CIM Journal","volume":"77 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138595824","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}

{"title":"CanmetMINING battery electric vehicle field test series: Relay utility vehicle","authors":"G. Li, J. Le, E. Acuña-Duhart, M. Levesque, E. Tomini, A. Mohsenimanesh, H. Ribberink, P. Summers","doi":"10.1080/19236026.2023.2258716","DOIUrl":"https://doi.org/10.1080/19236026.2023.2258716","url":null,"abstract":"","PeriodicalId":197002,"journal":{"name":"CIM Journal","volume":"122 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139232623","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}

{"title":"A review of past and present developments of the horizontal single belt casting (HSBC) process","authors":"D. R. Gonzalez-Morales, M. M. Isac, R. I. L. Guthrie","doi":"10.1080/19236026.2023.2255481","DOIUrl":"https://doi.org/10.1080/19236026.2023.2255481","url":null,"abstract":"Horizontal single belt casting (HSBC) has proven to be a viable future alternative to traditional casting processes (e.g. direct chill and conventional continuous casting for aluminum and steel, respectively). The present paper summarizes HSBC developments in Canada since the 1980s. Theoretical and experimental work is summarized to provide the necessary processing parameters needed to cast a wide range of alloys at pilot and industrial scales. Compared to conventional casting technologies, it is anticipated that HSBC will be a far more versatile, economical, and environmentally friendly method that will also reduce carbon dioxide emissions from metallurgical industries. The effects of air gap dimensions and belt speeds on the stability of the “back meniscus” were also studied for a double-impingement metal feeding system to cast AA2024 aluminum alloy. Using ANSYS Fluent 19.1 computational fluid dynamics software, various combinations of these process parameters were tested to obtain optimum results for promoting back-meniscus stability and assess the effects of these parameters on other phenomena (e.g. air entrainment).","PeriodicalId":197002,"journal":{"name":"CIM Journal","volume":"17 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135474745","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}

{"title":"Axial or turn-by-turn particle recovery in a spiral concentrator","authors":"L. Boisvert, M. Sadeghi, C. Rochefort, C. Bazin","doi":"10.1080/19236026.2023.2251101","DOIUrl":"https://doi.org/10.1080/19236026.2023.2251101","url":null,"abstract":"ABSTRACTSpiral concentrators (“spirals”) are commonly used to separate valuable heavy minerals from light gangue minerals by gravity. This paper examines the classification of particles as they flow down a spiral concentrator and relates the results to the number of turns. The tests show the possibility of reproducing the performance of industrial spirals with a spiral operating in a closed circuit in a laboratory. Results show that knowing the mineral size distributions in the spiral feed is necessary to forecast spiral performance. Further, in the case of iron ore processing, the separation process is practically complete after four turns, with wash water affecting the process rate of recovery. This observation is readily explained by considering the mineral size distribution.RÉSUMÉLes spirales gravimétriques (“spirales”) sont couramment utilisées pour séparer par gravité les minéraux lourds précieux des minéraux légers de gangue. Cet article examine la classification des particules qui s’écoulent le long d’une spirale et met en relation les résultats avec le nombre de tours. Les tests montrent qu’il est possible de reproduire les performances des spirales industrielles avec une spirale fonctionnant en circuit fermé dans un laboratoire. Les résultats montrent qu’il est nécessaire de connaître la distribution par tailles des minéraux dans l’alimentation de la spirale pour prévoir les performances de celle-ci. De plus, dans le cas du traitement du minerai de fer, le processus de séparation est pratiquement terminé après quatre tours, l’eau de lavage affectant le taux de récupération du procédé. Cette observation s’explique facilement si l’on considère la distribution par tailles des minéraux.KEYWORDS: Grade-recovery curve, Gravity concentration, Iron ore, Partition curve, Spiral concentratorMOTS-CLÉS: concentration par gravité, courbe de partage, courbe récupération-teneur, minerai de fer, spirale gravimétrique ACKNOWLEDGMENTSThis project was made possible by a grant from the Quebec Government via the Fonds de recherche du Québec – Nature et technologies (FRQNT) organization. The financial support of the company ArcelorMittal Mining Canada is also acknowledged. Finally, the authors thank Minerals Technologies for allowing the purchase of the WW6Plus spiral for the test work.DISCLOSURE STATEMENTNo potential conflict of interest was reported by the authors.REVIEW STATEMENTThis article was reviewed and approved for publication by the Canadian Mineral Processing Society of the Canadian Institute of Mining, Metallurgy and Petroleum.ETHICS APPROVAL AND CONSENT TO PARTICIPATEThere are no ethical issues associated with this manuscript.Additional informationFundingThis work was supported by the Fonds de recherche du Québec - Nature et technologies (FRQNT-2020-MN-284070 and FRQNT-2015-MI-191774).Notes on contributorsL. BoisvertLaurence Boisvert is a Candidate to the Engineering Profession (CEP), currently working at Corem as a physical separation researche","PeriodicalId":197002,"journal":{"name":"CIM Journal","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135883238","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}

{"title":"A novel experimental set-up for generating microbubbles for the removal of inclusions from water and liquid metals","authors":"R. Tiwari, D. Gonzalez-Morales, M. M. Isac, R. I. L. Guthrie","doi":"10.1080/19236026.2023.2255094","DOIUrl":"https://doi.org/10.1080/19236026.2023.2255094","url":null,"abstract":"To enhance steel cleanliness, extensive research has been conducted on bubble flotation techniques for inclusion removal. However, effective removal of nonmetallic inclusions smaller than 50 μm remains a challenge during standard liquid metal processing operations. These tiny inclusions have insufficient rising speeds to enable them to float out to the slag layer on their own. Several studies have demonstrated that the use of 500-μm bubbles would be necessary to facilitate the flotation of sub-50-μm inclusion particles from liquid steel within a tundish. Our approach to generating microbubbles in liquid metals uses liquid shearing flows. This method splits forming bubbles into smaller sizes by applying intense shear stresses. As a result, significantly larger surface areas are created, enhancing the interaction between the microbubbles and the inclusions. To test the effectiveness of this approach, a novel setup comprising submerged nozzles within a liquid metal was designed, manufactured, and operated. This setup allowed for experimentation with different rotational speeds and effluent gas flow rates, thereby determining the bubble sizes produced. Microbubbles within the desired size range (400–600 µm) were successfully generated in a Cerrolow 136 eutectic alloy.","PeriodicalId":197002,"journal":{"name":"CIM Journal","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136014096","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}

{"title":"Development of a novel cartridge for expansive cement application to hard rock breakage","authors":"T. Chen, Y. Li, K.-M. Habib, H. S. Mitri","doi":"10.1080/19236026.2023.2239106","DOIUrl":"https://doi.org/10.1080/19236026.2023.2239106","url":null,"abstract":"ABSTRACTExpansive cement (EC) is generally a slurry that it is poured into vertical holes for surface rock breakage applications. This paper describes the development of a novel cartridge for extending EC applications from gravity-filled vertical holes to horizontal, uptilted, and wet boreholes. Four cartridge prototypes were made from low-cost and readily available plastics using three-dimensional printers. The performance of each cartridge was investigated in unconfined rock slab tests. The polylactic acid (PLA) cartridge was found to be superior to the thermoplastic polyurethane, polyethylene terephthalate glycol, and acrylonitrile butadiene styrene cartridges. Through partial heat containment, the PLA cartridge accelerated the EC hydraulic reaction and shortened the onset of rock destruction by 30% relative to vertical, gravity-filled EC. Finally, rock breakage with EC was demonstrated in an underground mine using PLA cartridges. This novel type of cartridge could not only suit various applications beyond the scope of the current EC surface applications but also significantly improve the rock fracturing efficiency of EC.RÉSUMÉLe ciment expansif (EC) est généralement une boue que l’on verse dans des trous verticaux pour briser la roche en surface. Cet article décrit le développement d’une nouvelle cartouche permettant d’étendre les applications du ciment expansif des trous verticaux remplis par gravité aux trous de forage horizontaux, inclinés et humides. Quatre prototypes de cartouches ont été fabriqués à l’aide d’imprimantes tridimensionnelles à partir de plastiques peu coûteux et facilement disponibles. Les performances de chaque cartouche ont été étudiées lors d’essais en dalles rocheuses non confinées.La cartouche en acide polylactique (PLA, de l’anglais polylactic acid) s’est avérée supérieure aux cartouches en polyuréthane thermoplastique, en polyéthyléne téréphtalate glycol et en acrylonitrile butadiéne styréne. Grâce au confinement partiel de la chaleur, la cartouche PLA a accéléré la réaction hydraulique de l’EC et a raccourci le début de la destruction de la roche de 30 % par rapport à l’EC verticale remplie par gravité. Enfin, la rupture de la roche avec l’EC a été démontrée dans une mine souterraine à l’aide de cartouches en PLA. Ce nouveau type de cartouche pourrait non seulement convenir à diverses applications dépassant le cadre des applications actuelles de l’EC en surface, mais aussi améliorer de maniére significative l’efficacité de la fracturation de la roche par l’EC.KEYWORDS: Expansive cement (EC)Field applicationsLaboratory testsNon-explosive rock breakagePolylactic acid (PLA)Soundless chemical demolition agentsMOTS-CLÉS: acide polylactique (PLA)agents de démolitionciment expansif (EC)applications sur le terrainessais de laboratoirerupture de roche non explosif DISCLOSURE STATEMENTNo potential conflict of interest was reported by the author(s).REVIEW STATEMENTThis article was reviewed and approved for publication by the ","PeriodicalId":197002,"journal":{"name":"CIM Journal","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136135760","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}

{"title":"The truth about population balance modeling","authors":"R. Mcivor, J. Finch, S. Makni","doi":"10.1080/19236026.2023.2204708","DOIUrl":"https://doi.org/10.1080/19236026.2023.2204708","url":null,"abstract":"","PeriodicalId":197002,"journal":{"name":"CIM Journal","volume":"73 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125981726","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}