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Some opportunities to increase performance of tailing thickener case study: Gol-E-Gohar iron ore beneficiation plant | ||
| International Journal of Mining and Geo-Engineering | ||
| مقاله 6، دوره 56، شماره 1، خرداد 2022، صفحه 41-45 اصل مقاله (828.88 K) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22059/ijmge.2021.301280.594848 | ||
| نویسندگان | ||
| Saeed Zare* 1؛ Ehsan Arghavani1؛ Mohammad Qaredaqi2؛ Mostapha Saedi2 | ||
| 1Shahid Bahonar University of Kerman, Kerman, Iran | ||
| 2Gol-E-Gohar Mining and Industrial Company, Sirjan, Iran | ||
| چکیده | ||
| Thickener is a major and convenient applied equipment for tailings dewatering in mineral processing plants. Past investigations have shown that feed slurry dilution can improve flocculation efficiency by affecting both floc size and density. Advantages of thickener feed dilution method include reduced flocculent consumption, increased settling flux, and enhanced bed/sediment compressibility. Gol-E-Gohar iron complex is one of the largest iron concentrate producer in Iran and is located in Kerman. Gol-E-Gohar thickeners Performance was monitored through daily inspections. High flocculent consumption and turbidity of recycled water were major thickeners problems. Inspections showed that high solid content of thickeners feed was the major issue. Diluting pump method was used to decrease solid content of the thickeners feed. Also the reduction of used flocculent dosage happened by 45 % via Flocculent preparation improvement .the number of Flocculent distribution points was increased from 4 point to 9 .for enhancing flocculent solubility, water with less total dissolved solids was used for Flocculent preparation. The modifications resulted the a very clear thickener overflow water (turbidity less than250 ppm) and flocculent consumption was decreased from 114 g/t (gram per thickener feed tailings ) to 43 g/t, in other words there was a 45% decrease in flocculent consumption. | ||
| کلیدواژهها | ||
| Flocculent؛ Iron tailing؛ Slurry dilution؛ Thickener | ||
| مراجع | ||
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[1] Coe, H.S., & Clevenger, G.H., (1916). Methods for determining the capacities of slime settling tanks. Trans, AIME 55, P.P.
[2] Silverblatt, C. E., and Easton, J. H., 2002, Characterisation of process objectives and general approach to equipment selection, In Mineral processing plant design practice and control, (A. L. Mular, D. N. Haibe, and D. J. Barrett, Ed.), Englewood, CO: SME, pp. 1255–1261.
[3] Hogg, R., 2005, Flocculation and dewatering of fine-particle suspensions, In Coagulation and flocculation, (H. Stechemesser and B. Dobiás, Eds.), Boca Raton, FL: Taylor and Francis, pp. 805–850.
[4] McCaslin, M. L., Mounteer, K. J., and Phillips, M., 2014, Innovations in liquid/solid separation for metallurgical processing, In Mineral processing and extractive metallurgy 100 years of innovation, (C. G. Anderson, R. C. Dunne, and J. L. Uhrie, Eds.), Englewood, CO: SME, pp. 333–344.
[5] Nguyen, T. V., Farrow, J. B., Smith, J., and Fawell, P. D., 2012, “Design and development of a novel thickener feedwell using computational fluid dynamics.” Journal of the Southern African Institute of Mining and Metallurgy, 112. pp. 939–948.
[6] Green, M. D., and Boger, D. V., 1997, “Yielding of suspension in compression.” Industrial & Engineering Chemistry Research, 36. pp. 4984–4992.
[7] Mohammad Reza Garmsiri & Ataollah Nosrati, 2018 “Dewatering of Copper Flotation Tailings: Effect of Feed Dilution on the Thickener Performance.” Mineral Processing and Extractive Metallurgy Review, 0882-7508 (Print) 1547-7401
[8] Gorain, B. K., 2016, Physical processing: innovations in mineral processing, In Innovative process development in metallurgical industry, (V. I. Lakshmanan and V. Ramachandran, Eds.), Switzerland: Springer, pp. 9–65.
[9] Schoenbrunn, F., and Laros, L., 2002, Design features and types of sedimentation equipment, In Mineral processing plant design practice and control, (A. L. Mular, D. L. Halbe, and D. J. Barratt, Eds.), Englewood, CO: SME, pp. 1331–1341.
[10] Wood, L. J. A., Turner, S. D., Laros, T. J., and Emmett, R. C., 1997, Self-diluting feedwell for thickener dilution, Google Patents.https://patentimages.storage.googleapis.com/da/93/b5/085480ea23fdd5/ US5389250.pdf
[11] Banisi, S., and Yahyaei, M., 2008, “Feed Dilution-Based Design of a Thickener for Refuse Slurry of a Coal Preparation Plant.” International Journal of Coal Preparation and Utilization, 28. pp. 201–223.
[12] A.T. Owen, T.V. Nguyen, P.D. Fawell., 2009, “The effect of Flocculent solution transport and addition conditions on feedwell performance in gravity thickeners.” Int. J. Miner. Process. 93 (2009) 115–127
[13] White, R.B., SSutalo, I.D., & Nguyen, T., (2003). “Fluid flow in thickener feedwell models.” Minerals Engineering, Vol. 16, pp.145–150. doi:10.1016/S0892-6875(02)00252-2
[14] Gh. Parsapour, F. Molhem, H. Montazari, E. Arghavani, Gh. Biniaz, S. Banisi.,2018 “Performance improvement of the Sarcheshmeh Copper Complex Cu-Mo thickener using a vane type feedwell.” IJMGE 53-1 (2019) 79-82
[15] R. Burgos and F. Concha, Further Development of Software for the Design and Simulation of Industrial Thickeners, Chemical Engineering Journal, Vol. 111, pp. 135–144 (2005).
[16] Gol-E-Gohar Iron ore beneficiation plant (lines 5, 6, and 7). Operating Manual. 2015 | ||
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