Method of hot-air drying

Details Method of hot-air drying Method of hot-air drying

1979-10-11

1981-03-17

Schwartz, Larry I.

Drying and gas or vapor contact with solids

Apparatus

With means to treat gas or vapor

34 86, 34212, F26B 304

Patent

active

042558700

ABSTRACT:
The invention relates to a method of drying with hot air where the drying is divided into at least two partial processes, in parallel or in series with each other, and the circulation flows of the two partial processes are conditioned to substantially different wet temperature levels, and the spent air in the partial process with higher wet temperature is heat exchanged with the circulation air in the partial process with lower wet temperature, in combination with that the spent air flows from the two partial processes thereafter are mixed with each other and caused to pass a heat exchanger common for the processes in order to preheat the supply air to the partial process with low wet temperature and after the passage through the heat exchanger to partially constitute supply air for the partial process with high wet temperature.

REFERENCES:
patent: 2711591 (1955-06-01), Wellmar
patent: 3437321 (1969-04-01), Wilkinson
patent: 3849904 (1974-11-01), Villalobos
patent: 4132011 (1979-01-01), Nichols

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