发明名称 |
FLERA STROEMNINGAR OCH FLERA PRODUKTER OMFATTANDE TRYCKBEHANDLINGSANRIKNINGSSYSTEM. |
摘要 |
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 forward product stream is formed in which a mixture of the particulate matter slurry and the chemical reagents is sprayed through a nozzle at a first relatively low pressure onto the surface of water in a forward stream flotation tank to create a floating froth phase containing therein a first quantity of the particulate matter. The remainder of the particulate matter slurry separates from the froth phase by sinking in the water, and the froth phase is separated as a first product. The remainder of the particulate matter slurry is then directed to a scavenger product stream in which the separated slurry is sprayed through a second nozzle at a second higher pressure onto the surface of water in a second scavenger stream flotation tank to create a floating froth phase containing therein a second quantity of the particulate matter. The second froth phase is then separated as a second product. The amounts of the products recovered in the first and second product streams are substantially independently adjustable by controlling the first and second spraying pressures. |
申请公布号 |
FI852853(L) |
申请公布日期 |
1986.03.15 |
申请号 |
FI19850002853 |
申请日期 |
1985.07.22 |
申请人 |
SOHIO ALTERNATE ENERGY DEVELOPMENT COMPANY |
发明人 |
BURGESS, LESTER E.;MCGARRY, PHILLIP E.;HERMAN, DAVID E. |
分类号 |
B03D1/02;B03D1/14 |
主分类号 |
B03D1/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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