Drying plastics

Details Drying plastics Drying plastics

1976-08-16

1977-08-23

Camby, John J.

Drying and gas or vapor contact with solids

Apparatus

With means to treat gas or vapor

34 1, 34 57R, 34168, F26B 1900, F26B 334

Patent

active

040430502

ABSTRACT:
Particles, e.g. granules, of plastic materials are dried by blowing air heated to 0.5-5.degree. C below the sticking temperature of the granules through a bed of the particles. The air temperature is controlled by means of a proportional controller having integral and derivative terms.

REFERENCES:
patent: 785119 (1905-03-01), Provost
patent: 2497501 (1950-02-01), Himmel et al.
patent: 2641848 (1953-06-01), Wilson
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patent: 2830245 (1958-04-01), Davis et al.
patent: 3093460 (1963-06-01), Dietert
patent: 3111398 (1963-11-01), Jones
patent: 3186102 (1965-06-01), Brociner et al.
patent: 3378245 (1968-04-01), Frank
patent: 3585481 (1971-06-01), Steghart
patent: 3722462 (1973-03-01), Pohler et al.

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