Apparatus for the continuous thermal treatment of a product movi

Details Apparatus for the continuous thermal treatment of a product movi Apparatus for the continuous thermal treatment of a product movi

1977-02-15

1978-10-31

Sprague, Kenneth W.

Drying and gas or vapor contact with solids

Apparatus

With means to treat gas or vapor

34 77, 34155, 34242, 68 5E, 68 18C, F26B 2106

Patent

active

041226119

ABSTRACT:
An apparatus for the continuous thermal treatment of a product within an atmosphere made up of steam (saturated or superheated) of pure water or of a mixture of air and water vapor is disclosed. The product moves through an enclosed or confined space for its thermal treatment by the steam. The space is provided with entry and exit air-locks for the conveyance of the product into the space and for its removal. There are also means for guiding the product through the air-locks and the space. Additional means is provided to encourage thermal treatment and hence the space is provided with convection, radiation or conduction means to bring heat to the product. A first condensor receives vapor or humid air which is preferably extracted from the enclosed space via the adjacent air locks; it provides heat recovery of the purged vapor from the space. A second condensor is placed within the enclosed space and communicates with the high pressure discharge port of a compressor. The compressor has its low entry port communicating to an evaporator of the first condensor. It is the second condensor which supplies to the enclosed space heat that is derived from high pressure steam, at the output of the compressor.

REFERENCES:
patent: 3087254 (1963-04-01), Kubodera
patent: 3762065 (1973-10-01), Wahlgren
patent: 3798785 (1974-03-01), Chamouton
patent: 3927540 (1975-12-01), Tanaka et al.

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