Floatation cell with integrated wall scraping means

Details Floatation cell with integrated wall scraping means Floatation cell with integrated wall scraping means

1995-11-27

1996-10-15

Lithgow, Thomas M.

Liquid purification or separation

With means to add treating material

Directly applied to separator

210 91, 210525, 210527, C02F 124

Patent

active

055650996

ABSTRACT:
A floatation cell for treating wastewater in order to remove solid in suspension in the form of a floating sludge. This cell has a container which is rectangular in shape. A feed compartment in which the wastewater is fed, is located at one end of the compartment. A chute through which the floating sludge is collected and evacuated, is located at the other end of the container. The feed compartment has an outlet defined by a baffle that extends at a such height with respect to the top surface of the wastewater, as to generate a draining flow which directs the floating sludge towards the chute. The container also comprises scrappers mounted on its internal walls so as to be movable in an alternative, back and forth movement in order to avoid that the sludge accumulates on the walls and holds up the flow towards the chute. This system of evacuating the sludge is much simpler than the existing systems and the maintenance of the floatation cell is much easier to carry out.

REFERENCES:
patent: 2330589 (1943-09-01), Juell
patent: 2793185 (1957-05-01), Albrektsson
patent: 2983677 (1961-05-01), Boyd
patent: 3286844 (1966-11-01), Juell
patent: 3794171 (1974-02-01), Kimura
patent: 4470903 (1984-09-01), van Leeuwen
patent: 4957633 (1990-09-01), Suutarinen
patent: 5130029 (1992-07-01), Suutarinen
patent: 5176835 (1993-01-01), Perletti

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