Drying and gas or vapor contact with solids – Apparatus – With means to treat gas or vapor
Patent
1988-02-29
1989-08-29
Bennet, Henry A.
Drying and gas or vapor contact with solids
Apparatus
With means to treat gas or vapor
34 78, F26B 2106
Patent
active
048604607
ABSTRACT:
An apparatus for heating articles includes a main heating vessel having an inlet opening, an outlet opening and an exhaust opening therein, a quantity of a vaporizable heat transfer liquid in the vessel, a heating unit for heating the heat transfer liquid to produce a vapor blanket in the vessel, a transport assembly for transporting an article to be heated so that it passes through the vapor blanket and a control for controlling the heating unit to maintain the height of the vapor blanket at a predetermined level. The inlet opening, the outlet opening and the exhaust opening are all at least partially above the upper level of the vapor blanket, and an exhaust fan is provided for withdrawing air from the main heating vessel so that air is continuously drawn inwardly through the inlet opening and the outlet opening to prevent loss of vaporized heat transfer medium from the vessel. The air which is withdrawn from the heating vessel and any of the heat transfer medium intermixed therewith are passed through a recovery section where the air and heat transfer medium are intermixed with water to recover the heat transfer medium from the air.
REFERENCES:
patent: 4698915 (1987-10-01), Dickinson
patent: 4735001 (1988-04-01), Mishina et al.
patent: 4759710 (1988-07-01), Polaczy et al.
patent: 4766677 (1988-08-01), Brooks et al.
Gaudreau Paul D.
Hickling J. Gordon
Schachter Howard E.
Bennet Henry A.
Electraflo Technology Corp.
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