Rotary vacuum precoat filter

Details Rotary vacuum precoat filter Rotary vacuum precoat filter

1980-05-28

1981-12-01

Castel, Benoit

Liquid purification or separation

Filter

Vacuumized filtrate receiver

210408, 210149, B01D 3306

Patent

active

043035248

ABSTRACT:
An improved rotary vacuum precoat filter apparatus comprises a nozzle positioned for spraying a displacing liquid on the outer surface of the filter cake. Connected to the nozzle is a supply conduit for delivering the displacing liquid under pressure to the nozzle. Included along the supply conduit is a temperature control for regulating the temperature of the displacing liquid. The temperature of the displacing liquid is regulated for providing a spray of the displacing liquid about the temperature of the filter cake. Such temperature regulation minimizes thermal shock to the precoat of filter aid forming the filter cake.

REFERENCES:
patent: 2839194 (1958-06-01), Lopker et al.
patent: 2937069 (1960-05-01), Zoellner
patent: 3425799 (1969-02-01), Hazen et al.
patent: 3468423 (1969-09-01), Pechon
patent: 3715191 (1973-02-01), Rushton et al.
patent: 3919088 (1975-11-01), Doncer et al.
patent: 4110422 (1978-08-01), Kell
patent: 4115265 (1978-09-01), Otte et al.
patent: 4121968 (1978-10-01), Wells
patent: 4136199 (1979-01-01), Nells

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