Destoning the moatize coal seam, Mozambique, by Dry Jigging

This paper proposes pre-beneficiation studies by air jigs of the coal layers from a Moatize coal deposit. Pre-beneficiation, also called destoning, removes tailings before the beneficiation plant. The air jigs operate in the same granulometric size range as the heavy-media cyclones (HMCs) that are i...

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Autores:
Hoffmann Sampaio, Carlos
Monteiro Ambrós, Weslei
Cazacliu, Bogdan
Oliva Moncunill, Josep
Selemane José, David
Miltzarek, Gerson Luis
Schadach de Brum, Irineu Antônio
Petter, Carlos Otávio
Zanetti Fernandes, Eunírio
Silva Oliveira, Luis Felipe
Tipo de recurso:
Article of journal
Fecha de publicación:
2020
Institución:
Corporación Universidad de la Costa
Repositorio:
REDICUC - Repositorio CUC
Idioma:
eng
OAI Identifier:
oai:repositorio.cuc.edu.co:11323/7055
Acceso en línea:
https://hdl.handle.net/11323/7055
https://repositorio.cuc.edu.co/
Palabra clave:
Air jig
Destoning
Waste separation
Moatize coal
Rights
openAccess
License
CC0 1.0 Universal
id RCUC2_c289f23e66bd73034cbfc92a41dce0f2
oai_identifier_str oai:repositorio.cuc.edu.co:11323/7055
network_acronym_str RCUC2
network_name_str REDICUC - Repositorio CUC
repository_id_str
dc.title.spa.fl_str_mv Destoning the moatize coal seam, Mozambique, by Dry Jigging
title Destoning the moatize coal seam, Mozambique, by Dry Jigging
spellingShingle Destoning the moatize coal seam, Mozambique, by Dry Jigging
Air jig
Destoning
Waste separation
Moatize coal
title_short Destoning the moatize coal seam, Mozambique, by Dry Jigging
title_full Destoning the moatize coal seam, Mozambique, by Dry Jigging
title_fullStr Destoning the moatize coal seam, Mozambique, by Dry Jigging
title_full_unstemmed Destoning the moatize coal seam, Mozambique, by Dry Jigging
title_sort Destoning the moatize coal seam, Mozambique, by Dry Jigging
dc.creator.fl_str_mv Hoffmann Sampaio, Carlos
Monteiro Ambrós, Weslei
Cazacliu, Bogdan
Oliva Moncunill, Josep
Selemane José, David
Miltzarek, Gerson Luis
Schadach de Brum, Irineu Antônio
Petter, Carlos Otávio
Zanetti Fernandes, Eunírio
Silva Oliveira, Luis Felipe
dc.contributor.author.spa.fl_str_mv Hoffmann Sampaio, Carlos
Monteiro Ambrós, Weslei
Cazacliu, Bogdan
Oliva Moncunill, Josep
Selemane José, David
Miltzarek, Gerson Luis
Schadach de Brum, Irineu Antônio
Petter, Carlos Otávio
Zanetti Fernandes, Eunírio
Silva Oliveira, Luis Felipe
dc.subject.spa.fl_str_mv Air jig
Destoning
Waste separation
Moatize coal
topic Air jig
Destoning
Waste separation
Moatize coal
description This paper proposes pre-beneficiation studies by air jigs of the coal layers from a Moatize coal deposit. Pre-beneficiation, also called destoning, removes tailings before the beneficiation plant. The air jigs operate in the same granulometric size range as the heavy-media cyclones (HMCs) that are installed in the preparation plant. With the destoning, the heavy-media circuit operates with a lower coal feed and higher organic matter contents, increasing its cutting efficiency and lowering operational costs. The use of air jigs reduces the total water consumption in the plant, which is especially important for the region where the plant is installed, as water is particularly scarce. Four coal layers of the Moatize coal deposit were studied, which are currently exploited in the mine. As main results of the study, it is possible to say that the concentration of lights (feed of the preparation plant) and heavies (waste fraction) in air jigs can be carried out with reasonable efficiencies for all coal layers studied, making air jigs a feasible option for coal destoning.
publishDate 2020
dc.date.accessioned.none.fl_str_mv 2020-09-03T18:08:08Z
dc.date.available.none.fl_str_mv 2020-09-03T18:08:08Z
dc.date.issued.none.fl_str_mv 2020-08-31
dc.type.spa.fl_str_mv Artículo de revista
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dc.identifier.issn.spa.fl_str_mv 2075-163X
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dc.identifier.doi.spa.fl_str_mv doi:10.3390/min10090771
dc.identifier.instname.spa.fl_str_mv Corporación Universidad de la Costa
dc.identifier.reponame.spa.fl_str_mv REDICUC - Repositorio CUC
dc.identifier.repourl.spa.fl_str_mv https://repositorio.cuc.edu.co/
identifier_str_mv 2075-163X
doi:10.3390/min10090771
Corporación Universidad de la Costa
REDICUC - Repositorio CUC
url https://hdl.handle.net/11323/7055
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dc.language.iso.none.fl_str_mv eng
language eng
dc.relation.references.spa.fl_str_mv 1. Statista. Global Coke Production 1993 to 2018 (in Million Metric Tons). Available online: https://www.statista. com/statistics/267891/global-coke-production-since-1993 (accessed on 27 July 2020).
2. Statista. World Crude Steel Production from 2012 to 2019 (in Million Metric Tons). Available online: https://www.statista.com/statistics/267264/world-crude-steel-production/ (accessed on 27 July 2020).
3. Díez, M.A.; Alvarez, R.; Barriocanal, C. Coal for metallurgical coke production: Predictions of coke quality and future requirements for cokemaking. Int. J. Coal Geol. 2002, 50, 389–412. [CrossRef]
4. Hatton, W.; Fardell, A. New discoveries of coal in Mozambique: Development of the coal resource estimation methodology for International Resource Reporting Standards. Int. J. Coal Geol. 2012, 89, 2–12. [CrossRef]
5. Vasconcelos, L.; Muchangos, A.; Siquela, E. Elementos traços em cinzas de carvões aflorantes de Moçambique. Geochim. Bras. 2009, 23, 344–361.
6. Cairncross, B. An overview of the Permian (Karoo) coal deposits of southern Africa. Afr. Earth Sci. 2001, 33, 529–562. [CrossRef]
7. Lakshminarayana, G. Geology of Barcode type coking coal seams, Mecondezi sub-basin, Moatize Coalfield, Mozambique. Int. J. Coal Geol. 2015, 146, 1–13. [CrossRef]
8. Vasconcelos, L. Geologia do Carvão: Caracterização geológica da Bacia de Moatize-Moçambique; UEM Universida de Eduardo Mondlane: Maputo, Mozambique, 2005. (In Portuguese)
9. Vale. 2018. Available online: http://www.vale.com/mozambique/PT/business/mining/coal/moatize-coalmine/Paginas/default.aspx (accessed on 10 November 2018).
10. José, D.S. Caracterização Tecnológica de Carvão ROM da Mina de Moatize–Moçambique Para o “Destoning”, Visando Seu Beneficiamento. Ph.D. Thesis, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil, 2018; p. 223. (In Portuguese)
11. Wills, B.A.; Finch, J.A. Mineral Processing Technology: An Introduction to the Practical Aspects of Ore Treatment and Mineral Recovery, 8th ed.; Butterworth-Heinemann: Oxford, UK, 2016.
12. Charan, G.T.; Chattopadhyay, U.S.; Singh, K.M.P.; Kabiraj, S.; Haldar, D.D. Pilot-Scale Baum Jig Washing for Beneficiation of a High-Ash Indian Non coking Coal. Int. J. Coal Prep. Util. 2009, 29, 130–139. [CrossRef]
13. Dwari, R.K.; Rao, K.H. Dry beneficiation of coal—A review. Miner. Process. Extr. Metall. Rev. 2007, 28, 177–234. [CrossRef]
14. Xia, W.; Xie, G.; Peng, Y. Recent advances in beneficiation for low rank coals. Powder Technol. 2015, 277, 206–221. [CrossRef]
15. Sampaio, C.H.; Aliaga, W.; Pacheco, E.T.; Petter, E.; Wotruba, H. Coal beneficiation of Candiota mine by dry jigging. Fuel Process. Technol. 2008, 89, 198–202. [CrossRef]
16. Boylu, F.; Talı, E.; Çetinel, T.; Çelik, M.S. Effect of fluidizing characteristics on upgrading of lignitic coals in gravity based air jig. Int. J. Miner. Process. 2014, 129, 27–35. [CrossRef]
17. Charan, T.G.; Chattopadhyay, U.S.; Singh, K.M.P.; Kabiraj, S.K.; Haldar, D.D. Beneficiation of high-ash, Indian non-coking coal by dry jigging. Min. Metall. Explor. 2011, 28, 21–23.
18. Boylu, F.; Çinku, K.; Çetinel, T.; Karaka¸s, F.; Güven, O.; Karaa ˘gaçlio ˘glu, I.E.; Çelik, M.S. Effect of coal moisture on the treatment of a lignitic coal through a semi-pilot-scale pneumatic stratification jig. Int. J. Coal Prep. Util. 2015, 35, 143–154. [CrossRef]
19. Ihedioha, J.I.; Okorie-kanu, C.O.; Iwuogo, U.M. Upgrading coal using a pneumatic density based separator. Int. J. Coal Prep. Util. 2008, 28, 51–67.
20. Zhao, Y.; Fu, Z.; Yang, L.Z.; Duan, C.; Song, S.; Cai, L. Fine Coal Dry Cleaning using an Air Dense Medium Fluidized Bed with Improved Magnetite Medium. Procedia Eng. 2015, 102, 1133–1141. [CrossRef]
21. Fu, Z.; Zhao, Y.; Yang, X.; Luo, Z.; Zhao, J. Fine coal beneficiation via air-dense medium fluidized beds with improved magnetite powders. Int. J. Coal Prep. Util. 2016, 36, 55–68. [CrossRef]
22. Xu, X.; Chen, J.; Luo, Z.; Tang, L.; Zhao, Y.; Lv, B.; Fu, Y.; Chen, C. Fluidization Characteristics of Air Dense Medium Agitated Separation Fluidized Bed with Different Distributors. Miner. Process. Extr. Metall. Rev. 2019, 40, 299–306. [CrossRef]
23. Nienhaus, K.; Pretz, T.; Wotruba, H. Sensor Technologies: Impulses for the Raw Materials Industry; Shaker Verlag GmbH: Düren, Germany, 2014; p. 476.
24. Duan, C.-L.; He, Y.-Q.; Zhao, Y.-M.; He, J.-F.; Wen, B.F. Development and application of the active pulsing air classification. Proceed Earth Planet. Sci. 2009, 1, 667–672.
25. Das, A.; Sarkar, B. Advanced gravity concentration of fine particles: A review. Miner. Process.Extr. Metall. Rev. 2018, 39, 359–394. [CrossRef]
26. Weinstein, R.; Snoby, R. Advances in dry jigging improves coal quality. Min. Eng. 2007, 1, 29–34.
27. Snoby, R.; Thompson, K.; Mishra, S.; Snoby, B. Dry jigging coal: Case history performance. In Proceedings of the 2009 SME Annual Meeting, Denver, CO, USA, 22–25 February 2009.
28. Ambrós, W.M.; Sampaio, C.H.; Cazacliu, B.G.; Conceição, P.N.; Reis, G.S. Some observations on the influence of particle size and size distribution on stratification in pneumatic jigs. Powder Technol. 2019, 342, 594–606. [CrossRef]
29. Bird, B.M. Interpretation of float-and-sink data, Anais, II. Int. Conf. Bitum. Coal 1928, 2, 82–111.
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dc.source.spa.fl_str_mv Minerals
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spelling Hoffmann Sampaio, CarlosMonteiro Ambrós, WesleiCazacliu, BogdanOliva Moncunill, JosepSelemane José, DavidMiltzarek, Gerson LuisSchadach de Brum, Irineu AntônioPetter, Carlos OtávioZanetti Fernandes, EunírioSilva Oliveira, Luis Felipe2020-09-03T18:08:08Z2020-09-03T18:08:08Z2020-08-312075-163Xhttps://hdl.handle.net/11323/7055doi:10.3390/min10090771Corporación Universidad de la CostaREDICUC - Repositorio CUChttps://repositorio.cuc.edu.co/This paper proposes pre-beneficiation studies by air jigs of the coal layers from a Moatize coal deposit. Pre-beneficiation, also called destoning, removes tailings before the beneficiation plant. The air jigs operate in the same granulometric size range as the heavy-media cyclones (HMCs) that are installed in the preparation plant. With the destoning, the heavy-media circuit operates with a lower coal feed and higher organic matter contents, increasing its cutting efficiency and lowering operational costs. The use of air jigs reduces the total water consumption in the plant, which is especially important for the region where the plant is installed, as water is particularly scarce. Four coal layers of the Moatize coal deposit were studied, which are currently exploited in the mine. As main results of the study, it is possible to say that the concentration of lights (feed of the preparation plant) and heavies (waste fraction) in air jigs can be carried out with reasonable efficiencies for all coal layers studied, making air jigs a feasible option for coal destoning.Hoffmann Sampaio, CarlosMonteiro Ambrós, WesleiCazacliu, BogdanOliva Moncunill, JosepSelemane José, DavidMiltzarek, Gerson LuisSchadach de Brum, Irineu AntônioPetter, Carlos OtávioZanetti Fernandes, EunírioSilva Oliveira, Luis FelipeengCorporación Universidad de la CostaCC0 1.0 Universalhttp://creativecommons.org/publicdomain/zero/1.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2MineralsAir jigDestoningWaste separationMoatize coalDestoning the moatize coal seam, Mozambique, by Dry JiggingArtículo de revistahttp://purl.org/coar/resource_type/c_6501http://purl.org/coar/resource_type/c_2df8fbb1Textinfo:eu-repo/semantics/articlehttp://purl.org/redcol/resource_type/ARTinfo:eu-repo/semantics/acceptedVersion1. Statista. Global Coke Production 1993 to 2018 (in Million Metric Tons). Available online: https://www.statista. com/statistics/267891/global-coke-production-since-1993 (accessed on 27 July 2020).2. Statista. World Crude Steel Production from 2012 to 2019 (in Million Metric Tons). Available online: https://www.statista.com/statistics/267264/world-crude-steel-production/ (accessed on 27 July 2020).3. Díez, M.A.; Alvarez, R.; Barriocanal, C. Coal for metallurgical coke production: Predictions of coke quality and future requirements for cokemaking. Int. J. Coal Geol. 2002, 50, 389–412. [CrossRef]4. Hatton, W.; Fardell, A. New discoveries of coal in Mozambique: Development of the coal resource estimation methodology for International Resource Reporting Standards. Int. J. Coal Geol. 2012, 89, 2–12. [CrossRef]5. Vasconcelos, L.; Muchangos, A.; Siquela, E. Elementos traços em cinzas de carvões aflorantes de Moçambique. Geochim. Bras. 2009, 23, 344–361.6. Cairncross, B. An overview of the Permian (Karoo) coal deposits of southern Africa. Afr. Earth Sci. 2001, 33, 529–562. [CrossRef]7. Lakshminarayana, G. Geology of Barcode type coking coal seams, Mecondezi sub-basin, Moatize Coalfield, Mozambique. Int. J. Coal Geol. 2015, 146, 1–13. [CrossRef]8. Vasconcelos, L. Geologia do Carvão: Caracterização geológica da Bacia de Moatize-Moçambique; UEM Universida de Eduardo Mondlane: Maputo, Mozambique, 2005. (In Portuguese)9. Vale. 2018. Available online: http://www.vale.com/mozambique/PT/business/mining/coal/moatize-coalmine/Paginas/default.aspx (accessed on 10 November 2018).10. José, D.S. Caracterização Tecnológica de Carvão ROM da Mina de Moatize–Moçambique Para o “Destoning”, Visando Seu Beneficiamento. Ph.D. Thesis, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil, 2018; p. 223. (In Portuguese)11. Wills, B.A.; Finch, J.A. Mineral Processing Technology: An Introduction to the Practical Aspects of Ore Treatment and Mineral Recovery, 8th ed.; Butterworth-Heinemann: Oxford, UK, 2016.12. Charan, G.T.; Chattopadhyay, U.S.; Singh, K.M.P.; Kabiraj, S.; Haldar, D.D. Pilot-Scale Baum Jig Washing for Beneficiation of a High-Ash Indian Non coking Coal. Int. J. Coal Prep. Util. 2009, 29, 130–139. [CrossRef]13. Dwari, R.K.; Rao, K.H. Dry beneficiation of coal—A review. Miner. Process. Extr. Metall. Rev. 2007, 28, 177–234. [CrossRef]14. Xia, W.; Xie, G.; Peng, Y. Recent advances in beneficiation for low rank coals. Powder Technol. 2015, 277, 206–221. [CrossRef]15. Sampaio, C.H.; Aliaga, W.; Pacheco, E.T.; Petter, E.; Wotruba, H. Coal beneficiation of Candiota mine by dry jigging. Fuel Process. Technol. 2008, 89, 198–202. [CrossRef]16. Boylu, F.; Talı, E.; Çetinel, T.; Çelik, M.S. Effect of fluidizing characteristics on upgrading of lignitic coals in gravity based air jig. Int. J. Miner. Process. 2014, 129, 27–35. [CrossRef]17. Charan, T.G.; Chattopadhyay, U.S.; Singh, K.M.P.; Kabiraj, S.K.; Haldar, D.D. Beneficiation of high-ash, Indian non-coking coal by dry jigging. Min. Metall. Explor. 2011, 28, 21–23.18. Boylu, F.; Çinku, K.; Çetinel, T.; Karaka¸s, F.; Güven, O.; Karaa ˘gaçlio ˘glu, I.E.; Çelik, M.S. Effect of coal moisture on the treatment of a lignitic coal through a semi-pilot-scale pneumatic stratification jig. Int. J. Coal Prep. Util. 2015, 35, 143–154. [CrossRef]19. Ihedioha, J.I.; Okorie-kanu, C.O.; Iwuogo, U.M. Upgrading coal using a pneumatic density based separator. Int. J. Coal Prep. Util. 2008, 28, 51–67.20. Zhao, Y.; Fu, Z.; Yang, L.Z.; Duan, C.; Song, S.; Cai, L. Fine Coal Dry Cleaning using an Air Dense Medium Fluidized Bed with Improved Magnetite Medium. Procedia Eng. 2015, 102, 1133–1141. [CrossRef]21. Fu, Z.; Zhao, Y.; Yang, X.; Luo, Z.; Zhao, J. Fine coal beneficiation via air-dense medium fluidized beds with improved magnetite powders. Int. J. Coal Prep. Util. 2016, 36, 55–68. [CrossRef]22. Xu, X.; Chen, J.; Luo, Z.; Tang, L.; Zhao, Y.; Lv, B.; Fu, Y.; Chen, C. Fluidization Characteristics of Air Dense Medium Agitated Separation Fluidized Bed with Different Distributors. Miner. Process. Extr. Metall. Rev. 2019, 40, 299–306. [CrossRef]23. Nienhaus, K.; Pretz, T.; Wotruba, H. Sensor Technologies: Impulses for the Raw Materials Industry; Shaker Verlag GmbH: Düren, Germany, 2014; p. 476.24. Duan, C.-L.; He, Y.-Q.; Zhao, Y.-M.; He, J.-F.; Wen, B.F. Development and application of the active pulsing air classification. Proceed Earth Planet. Sci. 2009, 1, 667–672.25. Das, A.; Sarkar, B. Advanced gravity concentration of fine particles: A review. Miner. Process.Extr. Metall. Rev. 2018, 39, 359–394. [CrossRef]26. Weinstein, R.; Snoby, R. Advances in dry jigging improves coal quality. Min. Eng. 2007, 1, 29–34.27. Snoby, R.; Thompson, K.; Mishra, S.; Snoby, B. Dry jigging coal: Case history performance. In Proceedings of the 2009 SME Annual Meeting, Denver, CO, USA, 22–25 February 2009.28. Ambrós, W.M.; Sampaio, C.H.; Cazacliu, B.G.; Conceição, P.N.; Reis, G.S. Some observations on the influence of particle size and size distribution on stratification in pneumatic jigs. Powder Technol. 2019, 342, 594–606. [CrossRef]29. Bird, B.M. Interpretation of float-and-sink data, Anais, II. Int. Conf. Bitum. 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