Classifying – separating – and assorting solids – Fluid suspension – Liquid
Patent
1993-06-14
1996-06-04
Lithgow, Thomas M.
Classifying, separating, and assorting solids
Fluid suspension
Liquid
209164, 209168, 209 121, 209 18, B03B 700, B03D 114
Patent
active
055225101
ABSTRACT:
An apparatus for separating impurities from coal, includes a device for removing a predetermined amount of ash-forming substances from the coal and a device for removing a predetermined amount of high specific gravity (e.g., pyrite) from the coal having been processed by the ash-forming substance removing device. The ash-forming substance removing device and the high specific gravity material removing device each possess characteristics that allow them to more efficiently reject different types of mineral impurities from coal.
REFERENCES:
patent: 1656271 (1928-01-01), Downs
patent: 2376703 (1945-05-01), Kuhlwein
patent: 2693878 (1954-11-01), Driessen
patent: 2842319 (1958-07-01), Reerink
patent: 2932395 (1960-04-01), Marot
patent: 2970689 (1961-02-01), Chang
patent: 3579442 (1971-05-01), Gerwig
patent: 3794162 (1974-02-01), Miller
patent: 3908912 (1975-09-01), Irons
patent: 4175035 (1979-11-01), Moyer
patent: 4272250 (1981-06-01), Burk
patent: 4297108 (1981-10-01), Horowitz
patent: 4338188 (1982-07-01), Guerre
patent: 4460376 (1984-07-01), Fahlstrom
patent: 4537599 (1985-08-01), Greenwald
patent: 4598873 (1986-07-01), Cleeman
patent: 4775106 (1988-10-01), Jha
patent: 4802976 (1989-02-01), Miller
patent: 4915706 (1990-04-01), Daley
patent: 4966608 (1990-10-01), Pawlak
patent: 4981582 (1991-01-01), Yoon et al.
patent: 5167798 (1992-12-01), Yoon et al.
Forman, William E, "Current Status of Hydrocyclone Technology"--Mining Congress Journal, Dec. 1972.
Reynolds, George L., "Use of Cyclones in Modern Coal preparation Plants"--Mining Congress Journal, Jun. 1964.
Sabelski, Joseph, J. "Development of Standards of Performance for New Coal Preparation Plants"--Mining Congress Journal, Oct. 1972.
Emmett, R. C. Jr. "Preparation Plant Water Control"--Mining Congress Journal, Dec. 1969.
Taylor, Bill S. "Removal of Fine Pyrite by Hydrocyclones" Mining Congress; Journal, Nov. 1969.
Miller, F. G. "Flotation Combination with Hydrocyclones" Mining Congress Journal, Aug. 1969.
P. Tucker, et al., "Modelling the Multi-Gravity Separator"; Les Techniques, Dec. 1992, pp. 45-49.
F. F. Lins, et al., "Performance of a New Centrifuge . . . B. C., Canada"; Minerals Engineering, vol. 5, Nos. 10-12, pp. 1113-1121, 1992.
B. Knelson, "The Knelson Concentrator. Metamorphosis From Crude Beginning to . . . Acceptance"; Minerals Engineering, vol. 5, Nos. 10-12, pp. 1091-1097, 1992.
Kenneth J. Miller, "Fine Grinding and Flotation to Desulfurize Coal"; Proceedings, Processing and Utilization of High Sulfur Coals, Oct. 1985, pp. 239-246.
A. W. Deurbrouck et al., "Wet Concentrating Tables"; SME Mineral Processing Handbook, Society of Mining Engineers, vol. 1, pp. 4-32--4-39, 1985.
F. B. Mitchell, "Flowing Film Concentrators"; SME Mineral Processing Handbook, Society of Mining Engineers, vol. 1, pp. 4-40--4-50, 1985.
Luttrell Gerald H.
Yoon Roe-Hoan
Lithgow Thomas M.
Virginia Tech Intellectual Properties Inc.
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