Drying and gas or vapor contact with solids – Apparatus – With means to treat gas or vapor
Patent
1981-10-09
1984-01-10
Schwartz, Larry I.
Drying and gas or vapor contact with solids
Apparatus
With means to treat gas or vapor
34 77, 34 78, 134 40, 134105, F26B 2114
Patent
active
044246331
ABSTRACT:
Apparatus for heating and drying articles including an evacuable drying chamber for heating therein articles by condensation heat of the vapor of a first liquid supplied to the drying chamber, a vacuum pump for evacuating the boiler, a first vapor condenser and a second vapor condenser connected betwen the drying chamber and the vacuum pump, a thin film evaporator for receiving condensate from the drying chamber in the form of the first liquid and a second liquid having a higher boiling point than the first liquid, the second liquid being obtained from the articles within the drying chamber, a condensate collecting container for receiving from the evaporator liquid condensate which is not evaporated in the evaporator, a pressure barrier arranged between the evaporator and the collecting container and a re-evaporator arranged between the pressure barrier and the collecting container. The re-evaporator operates to lower the residual concentration of the first liquid and it is connected to the second vapor condenser thereby to reduce the residual concentration of the first liquid to a value corresponding to the vapor pressure in the second vapor condenser.
REFERENCES:
patent: 3632480 (1972-01-01), Suprenant et al.
patent: 4141373 (1979-02-01), Kartanson et al.
patent: 4304051 (1981-12-01), McLoughlin
patent: 4322251 (1982-03-01), Elliott
Bernhardt Karl-Heinz
Strzala Helmut
Arthur Pfeiffer Vakuumtechnik Wetzlar GmbH
Schwartz Larry I.
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