Method and apparatus for filtration of slurries

Details Method and apparatus for filtration of slurries Method and apparatus for filtration of slurries

1971-02-26

1977-04-12

Adee, John

Liquid purification or separation

Filter

With residue removing means or agitation of liquid

210332, 210413, B01D 2324

Patent

active

040173992

ABSTRACT:
This invention concerns a process and apparatus for filtering slurries and efficiently washing the filter cake. More specifically, the invention provides for mechanically raking the surface of the filter cake to loosen particles therefrom. The loosened particles are entrained by a wash liquid or other fluid applied subsequent to the raking step; the entrained particles tend to occlude cracks in the filter cake, thereby eliminating preferential fluid flow through such cracks.

REFERENCES:
patent: 624633 (1899-05-01), Edwardes
patent: 820560 (1906-05-01), Evans
patent: 1865061 (1932-06-01), Grob
patent: 1990992 (1935-02-01), Lang et al.
patent: 2588976 (1952-03-01), Fuhrmeister
patent: 2827175 (1958-03-01), Cataldo
patent: 2829773 (1958-04-01), Saddington
patent: 2839194 (1958-06-01), Lopker et al.
patent: 3361262 (1968-01-01), Orr et al.

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