Applications of the CrossFlow teeter-bed separator in the U.S. coal industry

被引:0
作者
Kohmuench, J.N. [1 ]
Mankosa, M.J. [1 ]
Honaker, R.Q. [2 ]
Bratton, R.C. [3 ]
机构
[1] Eriez Manufacturing, Erie, PA
[2] University of Kentucky, Department of Mining Engineering, Lexington, KY
[3] Virginia Tech., Department of Mining and Minerals Engineering, Blacksburg, VA
关键词
Classification; CrossFlow separator; Density separation; Hindered bed separators;
D O I
10.1007/bf03403346
中图分类号
学科分类号
摘要
Hindered-bed separators are recognized as low-cost, high-capacity devices for both classification and density separation; however, since their inception there have been few significant advances in the fundamental technology. Recently, Eriez has shown through modeling and pilot-scale testing that the innovative approach to feed presentation offered in the CrossFlow teeter-bed separator provides improved metallurgy when compared to traditional hindered-bed classifiers or single-stage coal spirals. This design feature prevents excess water from entering the separation chamber and disrupting the overall fluidization flow rate within the teeter zone. Most recently, a side-by-side industrial-scale evaluation verified that this technology improves overall efficiency and simultaneously reduces the separation cut point. With regards to coal processing, data from full-scale units indicate that the CrossFlow offers good separation efficiency, high unit capacity and metallurgical results consistent with laboratory- and pilot-scale separators. Copyright 2006, Society for Mining, Metallurgy, and Exploration, Inc.
引用
收藏
页码:187 / 195
页数:8
相关论文
共 13 条
  • [1] Bethell P.J., Current and future processing flowsheets, Industrial Practice of Fine Coal Processing, pp. 317-329, (1988)
  • [2] Dunn P.L., Stewart S.O., Kohmuench J.N., Cadena C.A., A hydraulic classifier evaluation: Upgrading heavy mineral concentrates, SME Annual Meeting, (2000)
  • [3] Eisenmann M.D., Elutriation Technology in Heavy Mineral Separations, (2001)
  • [4] Heiskanen K., Particle Classification, (1993)
  • [5] Kohmuench J.N., Mankosa M.J., Luttrell G.H., Adel G.T., A process engineering evaluation of the CrossFlow separator, Minerals & Metallurgical Processing, 19, 1, pp. 43-49, (2002)
  • [6] Masliyah J.H., Hindered settling in a multi-species particle system, Chemical Engineering Science, 34, pp. 1166-1168, (1979)
  • [7] McKnight K., Stouffer N., Domenico J., Mankosa M.J., Recovery of zircon and other economic minerals from wet gravity tailings using the Floatex density separator, SME Annual Meeting, (1996)
  • [8] Reed S., Roger R., Honaker R.O., Mankosa M.J., In-plant testing of the Floatex density separator for fine coal cleaning, Proceedings, 12th International Coal Preparation Conference, pp. 163-174, (1995)
  • [9] Richardson J., Zaki W., Sedimentation and fluidization: Part I, Transactions, Institute of Chemical Engineering, 39, pp. 35-53, (1954)
  • [10] Swanson V.F., Free and hindered settling, Minerals & Metallurgical Processing, pp. 190-196, (1989)