Drying and gas or vapor contact with solids – Apparatus – With means to treat gas or vapor
Patent
1976-05-18
1977-11-22
Camby, John J.
Drying and gas or vapor contact with solids
Apparatus
With means to treat gas or vapor
34 92, F26B 504
Patent
active
040589064
ABSTRACT:
A process for drying wood at subatmospheric pressures comprising a phase in which the wood is heated up in a sealed environment, is characterized in the fact that this heating-up phase comprises the operations of:
I. introducing into said closed environment an operative fluid which is capable of imparting, moisture to the wood, causing this fluid to cycle repeatedly around a closed circuit in such a way that in every cycle, the fluid passes through a pile formed by the pieces of wood, and then returns without passing through the pile;
Ii. supplying thermal energy to the operative fluid in such a way that the thermal content of the fluid increases overall in each cycle at a diminishing rate until the fluid reaches a substantially steady cyclical state in which there is no overall increase in its thermal content in each subsequent cycle.
REFERENCES:
patent: 688711 (1901-12-01), Amthor
patent: 1050151 (1913-01-01), Loomis
patent: 1421685 (1922-07-01), Glessner
patent: 1458403 (1923-06-01), Glessner
patent: 2064965 (1936-12-01), Will
patent: 2387595 (1945-10-01), Luth et al.
Camby John J.
Ernesto Guglielmo Pagnozzi
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