Dewatering of sinter feed as a bulk draining process
DOI:
https://doi.org/10.53660/CLM-4298-24V03Palavras-chave:
Dewatering, van Genuchten, Iron ore, Stockpile, ScreeningResumo
Screen dewatering is widely used in ore dressing operations. A deep understanding of its intrinsic mechanisms can enable the improvement of economic and even mitigation of environmental impacts. The dewatering of iron ore fines has been approached by different ways in recent years. Several authors consider that moisture decrease is essentially linked to residence time, while others attempt to treat this process via parametric modeling. This work explores the comparison between the van Genuchten's porous media dewatering model and the King’s dewatering model, in order to make these two independent models compatible. This approach has the potential to overcome the difficulties of existing approaches by providing a useful and robust modelling alternative.
Downloads
Referências
ANDRADE, R. S. & STONE, L. F. Estimativa da umidade na capacidade de campo em solos sob Cerrado. Revista Brasileira de Engenharia Agrícola e Ambiental, v.15, n.2, p.111–116, 2011.
BENIS, S. G. Performance study of a bench scale shale shaker (Ph.D. thesis). Akron: The University of Akron. 2017. 218 p.
DUAN, C; YUAN, J.; PAN, M.; HUANG, T.; JIANG, H.; ZHAO, Y.; QIAO, J.; WANG, W.; YU, SH.; LU, J. Variable elliptical vibrating screen: Particles kinematics and industrial application. International Journal of Mining Science and Technology, 31 (2021) 1013–1022.
ETTMAYR, A., STAHL, W., KELLER, K., & SAUER, G. Dewatering of fine granular materials by vibrating screens with superposed capillary suction. Proceedings of the XXI International Mineral Processing Congress. Rome, Italy: Department of Chemical, Raw Material and Metallurgical Engineering. Anais […], Rome: University of Rome "La Sapienza". 2000.
FERREIRA, R. F. Modelos para previsão do limite de umidade para transporte marítimo de finos de minério de ferro - TML. 2019. Tese (doutorado em Engenharia Mineral). Universidade Federal de Ouro Preto, Ouro Preto. 2019.
FRADE, A. M.; LUZ, J. A. M. da. Optimization of screen dewatering through dynamic control of frequency. Research, Society and Development, [S. l.], v. 11, n. 7, e22711729823, 2022. DOI: http://dx.doi.org/10.33448/rsd-v11i7.29823.6.
GUERREIRO, F. S.; GEDRAITE, R.; SÁ, C. H. M.; ATAÍDE, C. H. Estudo de variáveis que afetam a umidade residual e a eficiência de separação em peneira vibratória. In: VI ENAHPE, 2015, Rio Quente. Anais [...]. 2015. DOI: 10.1590/s1517-70762022000300001
HAN, XIANG-WEI; SHAO, MING-AN; HORTON, R. Estimando parâmetros do modelo de van Genuchten de solos inalterados usando um método integral. Soil Science Society of America Journal, v. 73, n. 6, p. 2408-2417, 2009.
HE, D.; LIU, C.; LI, S. The Nonlinear Dynamic Behavior of a Particle on a Vibrating Screen Based on the Elastoplastic Contact Model. Separations. 2022, 9, 216. https://doi.org/10.3390/separations9080216
KELLER, K., & STAHL, W. Vibration screens for dewatering: theory and practice. Minerals & Metallurgical Processing, 27(1), 27-34. 1997.
KING, R. P. Modeling and Simulation of Mineral Processing Systems. 1st ed. Oxford: Butterworth-Heinemann. 2001.
LI, Z.; LIU, Y.; WANG, J.; LI, Y.; ZHANG, S.; WANG, X. Study on screening performance and parameter optimization of vibrating-dewatering screen. Advances in Mechanical Engineering, [S. l.], v. 13, n. 9, p. 1-15, 2021. DOI: 10.1177/16878140211046580. Disponível em: journals.sagepub.com/home/ade.
LOZANO, J. C., BLANCO RODRÍGUEZ, P., VERA TOMÉ, F., MALDONADO, R., MEDEIROS, A. S., & PRIETO, C. A system for obtaining soil solution extracts and soil water retention curves using a bench centrifuge with fixed angle rotors. Geoderma, 361, 114063. 2020.
LUZ, J. A. M. da. Projeto “Drenagem acelerada de pilhas — minério de ferro” [internal report for Companhia Vale do Rio Doce — CVRD]. Serra dos Carajás: Tecnomin Projeto e Consultoria Ltda. 1992.
LUZ, J. A. M. da. Projeto “Drenagem acelerada de pilhas — carvão mineral” [internal report for Copelmi Mineração Ltda.]. Butiá: Tecnomin Projeto e Consultoria Ltda. 1993.
MELLO, C. R. DE; OLIVEIRA, G. C. de, FERREIRA, D. F., LIMA, J. M. de, & LOPES, D. Modelos para determinação dos parâmetros da equação de van Genuchten para um Cambissolo. Revista Brasileira de Engenharia Agrícola e Ambiental, v. 9, n. 1, p. 23–29, jan. 2005. https://doi.org/10.1590/S1415-43662005000100004.
MOEZZIBADIA, M.; CHARPENTIER, I.; WANKOA, A.; MOSÉ, R. Temporal estimation of hydrodynamic parameter variability in stormwater constructed wetlands – The hysteresis effect during multi-rainfall events. Ecological Engineering 127 (2019) 1–10.
MUALEM, Y. A new model for predicting the hydraulic conductivity of unsaturated porous media. Water Resources Research, 12(3), 1976. Pp.: 513-522.
PATRA, A. S.; MAKHIJA, D.; MUKHERJEE, A. K.; TIWARI, R.; SAHOO, C. R.; MOHANTY, B. D. Improved dewatering of iron ore fines by the use of surfactants. Powder Technology, 287 (2016): 43–50.
QUITES, N. A. S. Influência de diferentes tipos de minério de ferro na umidade do sinter feed (Dissertação de mestrado). Universidade Federal de Ouro Preto, Ouro Preto, 2018.
RAJA, V., CHASE, G. G., JONES, B. N., GEEHAN, T. Continuum model of a shale shaker. In: Proceedings of the 2010 AADE Fluids Conference and Exhibition (pp. 1-10). Anais […] Houston, TX: American Association of Drilling Engineers. 2010.
RUDIYANTO, M., SAKAI, M., VAN GENUCHTEN, M. T., ALAZBA, A. A., SETIAWAN, B. I., & MINASNY, B. A complete soil hydraulic model accounting for capillary and adsorptive water retention, capillary and film conductivity, and hysteresis. Water Resources Research, 2015, 51, doi: 10.1002/2015WR017703.
SCARPARE, FÁBIO VALE E MORAES, SÉRGIO OLIVEIRA; DE JONG VAN LIER, QUIRIJN. Disciplina LCE200: Física do ambiente agrícola — Umidade do ar. Piracicaba: Escola Superior de Agricultura Luiz de Queiroz, Universidade de São Paulo.
HENG-SHEN, Y., JIAN, D., & MING-HONG, Z. (2002). Research of regularity of throwing movement for solid particle on the Shaker’s screen. Applied Mathematics and Mechanics, 23(6), 655–659 (2002). doi:10.1007/bf02437649.
STOICOVICI, D., UNGUREANU, M., UNGUREANU, N., & BANICA, M. Computer Model for Sieves' Vibrations Analysis, Using an Algorithm Based on the False-Position Method. American Journal of Applied Sciences (2009), 6, 48-56. https://doi.org/10.3844/AJASSP.2009.48.56.
TSCHAPEK, M.; FALASCA, S.; WASOWSKI, C. The Undrainable Water in Quartz Sand and Glass Beads. Powder Technology, 42 (1985), 175-180.
WANG, Z. M., ZHAO, Y. B., ZHANG, C. X., DENG, M., & ZHANG, D. H. Simulation of flow through vibrating screens with moving body method. In: 2010 International Conference on Computer Application and System Modeling (ICCASM 2010). Anais […] Shanxi: IEEE, 2010.
YU, C.; WANG, X.; PANG, K.; ZHAO, G.; SUN, W. Dynamic Characteristics of a Vibrating Flip-Flow Screen and Analysis for Screening 3 mm Iron Ore. Shock and Vibration, [S. l.], v. 2020, Article ID 1031659, 12 p., 2020. https://doi.org/10.1155/2020/1031659.
ZHANG, Y., ZHAO, D., ZHENG, Q., HUANG, Y., JIANG, F., WANG, M.-K., LIN, J., & HUANG, Y. Evaluating the effects of temperature on hydraulic and mechanical properties in the collapsing gully areas of South China. Catena, v. 218, p. 106549, 2022.
ZHU, W.; WU, W.; HAO, X.; WANG, H. A Novel Solution to Sieving Model for a Drilling Fluid Shale Shaker. Telkomnika Indonesian Journal of Electrical Engineering. v. 10, n. 6, October 2012, pp: 13578 – 1363.
