Process for supervising and/or controlling of physical treatment

Details Process for supervising and/or controlling of physical treatment Process for supervising and/or controlling of physical treatment

1984-05-10

1987-02-24

Makay, Albert J.

Drying and gas or vapor contact with solids

Apparatus

With means to treat gas or vapor

34 48, 34 50, 34 54, 733365, 118303, 118663, 427213, 324 61R, F26B 308

Patent

active

046446656

ABSTRACT:
In a process, the humidity of at least the exhaust air is measured and used for the regulation of the product humidity of water activity during a treatment process. Therefore, it is possible to directly register the humidity taken on by the inlet air or charged onto it, and to draw a conclusion about the humidity content of the product. To register the humidity value, a measuring device with moisture testers in the inlet air channel and in the exhaust air channel is provided. Especially the moisture tester for the exhaust air is constructed as a bypass flow moisture tester in an intrinsically safe manner, so that it can be used even under ex-conditions. During drying procedures, the possible measuring of the humidity charge of the exhaust air from the drying process, the course can be exactly controlled. The moisture testers can be constructed as dew point testers, especially with capacitive measuring probes.

REFERENCES:
patent: 3908045 (1975-09-01), Alterman et al.
patent: 3909954 (1975-10-01), Zoukourian
patent: 4221058 (1980-09-01), Zagorzycki
patent: 4244698 (1981-01-01), King et al.
patent: 4386471 (1983-06-01), Bowrey et al.
patent: 4478080 (1984-10-01), Bruce
patent: 4500940 (1985-02-01), Kuisma et al.
patent: 4507875 (1985-04-01), Hirsch et al.

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