Vacuum drying equipment

Details Vacuum drying equipment Vacuum drying equipment

1992-10-30

1994-10-11

Gromada, Denise

Drying and gas or vapor contact with solids

Apparatus

Vacuum

34 74, 34 86, 622386, F26B 1330

Patent

active

053535197

ABSTRACT:
A vacuum drying apparatus for refuse or the like includes a drying vessel which receives a material, e.g., refuse, to be dried; a heat recoverer connected to the drying vessel through a steam discharge passage extending from the upper portion of the drying vessel; means for exhaust and drainage mounted to the heat recoverer; a heat pump; a radiator provided in the heat pump; heat exchanger for the drying vessel which introduces the heat of a refrigerant flowing through a piping of the heat pump into the drying vessel; and heat exchanger for the heat recoverer which introduces the heat of the refrigerant flowing through the piping of the heat pump into the heat recoverer. The refrigerant piping of the heat pump is capable of being switched over from a flow of the refrigerant through a circulation system for heating the drying vessel and cooling the heat recoverer, and discarding the heat generated by the radiator.

REFERENCES:
patent: 3909957 (1975-10-01), Passey
patent: 4347671 (1982-09-01), Dias et al.
patent: 4423602 (1984-01-01), Venable
patent: 4565161 (1986-01-01), Choquette
patent: 4949473 (1990-08-01), Steinkamp
patent: 5199187 (1993-04-01), Sutherland
patent: 5208998 (1993-05-01), Oyler, Jr.

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