Filtration apparatus with integral drying by electromagnetic rad

Details Filtration apparatus with integral drying by electromagnetic rad Filtration apparatus with integral drying by electromagnetic rad

1989-08-02

1990-12-25

Bennet, Henry A.

Drying and gas or vapor contact with solids

Apparatus

For diverse operations on treated material

34 60, 34 1, 34 17, F26B 1900

Patent

active

049793152

ABSTRACT:
Subsequent to formation of a filter cake upon the surface of belt and further vacuum filtration (via vacuum trays), the cake passed below and is covered by an impervious sheet, and is dried by application of radiation, e.g. microwaves, radio waves, through the sheet, along with further evacuation (via vacuum trays) below the sheet. Because the cake is under suction pressure, the evaporation temperature of the filtrate is lowered to a level which will not adversely affect the cake, and which can be reached very rapidly by application of this form of radiation.

REFERENCES:
patent: 3731036 (1973-05-01), Hallier et al.
patent: 4242220 (1980-12-01), Sato
patent: 4640020 (1987-02-01), Wear et al.
patent: 4657682 (1987-04-01), Uyama et al.

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