Classifying – separating – and assorting solids – Fluid suspension – Liquid
Patent
1981-01-29
1982-08-31
Hill, Ralph J.
Classifying, separating, and assorting solids
Fluid suspension
Liquid
209168, 210706, 2102212, B03D 102, B03D 114
Patent
active
043471269
ABSTRACT:
An improved method and apparatus for froth flotation separation of the components of a slurry, having particular utility for the beneficiation of coal by the flotation separation of coal particles from impurities associated therewith such as ash and sulfur. In this arrangement, a spray nozzle is positioned above a flotation tank having a water bath therein, and sprays an input slurry through an aeration zone into the surface of the water. The spraying operation creates a froth on the water surface in which a substantial quantity of particulate matter is floating, while other components of the slurry sink into the water bath. A skimming arrangement skims the froth from the water surface as a cleaned or beneficiated product.
REFERENCES:
patent: 2416066 (1947-02-01), Phelps
patent: 3326373 (1967-06-01), Lang
patent: 3400818 (1968-09-01), Tartan
Perry, Ed., Chemical Engineers Handbook, McGraw-Hill, NY, NY., 1963, pp. 18-63, 18-68.
Dwg. No. 7120, Spraying Systems Co., Wheaton, Il., 12/1973.
Bull. No. KSB 123-7909, Komline-Sanderson, Peapack, NJ, 9/1979.
Herman David E.
McGarry Phillip E.
Gulf & Western Manufacturing Company
Hill Ralph J.
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