Coating apparatus – With heat exchange – drying – or non-coating gas or vapor... – With treatment of waste gases – e.g. – solvent recovery
Patent
1981-04-22
1982-10-12
Kendall, Ralph S.
Coating apparatus
With heat exchange, drying, or non-coating gas or vapor...
With treatment of waste gases, e.g., solvent recovery
118 69, 118425, 118428, 134 11, 134104, 134107, 427335, 148 615R, B05C 1110
Patent
active
043533230
ABSTRACT:
An apparatus for treating articles with a solvent, a solvent-containing liquid such as a lacquer, or with solvent vapors, comprises an open treating vessel provided with a device for raising and lowering the articles in the vessel and a heating unit at the bottom of the vessel for heating solvent therein. Around the wall of the vessel, above the bottom thereof, cooling tubes are provided which are connected to the cold branch of a heat pump so as to condense solvent vapors which can collect in a trough below these tubes and can be returned to a compartment of the vessel adjacent the treating compartment. The hot branch of the heat pump is connected via a heat exchanger to a water boiler and heat storage tank and the heater is connected to this boiler by a pump controlled by a control device responsive to the raising and lowering of the articles.
REFERENCES:
patent: 3070463 (1962-12-01), Barday
patent: 3308877 (1967-03-01), Gertis
patent: 3916638 (1975-11-01), Schmidt
Kendall Ralph S.
Langbein-Pfanhauser Werke AG
Ross Karl F.
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