Title:
FLOTATION APPARATUS FOR REGULATING PRESSURE OF MULTIPLE STREAM AND MULTIPLE PRODUCT
Document Type and Number:
Japanese Patent JPS6174661
Kind Code:
A
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 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.
Inventors:
RESUTAA II BAAGUSU
FUIRITSUPU II MAKUGERII
DEBITSUDO II HAAMAN
FUIRITSUPU II MAKUGERII
DEBITSUDO II HAAMAN
Application Number:
JP15528185A
Publication Date:
April 16, 1986
Filing Date:
July 16, 1985
Export Citation:
Assignee:
SOHIO ALTERNATE ENERGY DEV (US)
International Classes:
B03D1/02; B03D1/14; (IPC1-7): B03D1/14
Attorney, Agent or Firm:
Takehiko Saito