Plastic drying apparatus

Details Plastic drying apparatus Plastic drying apparatus

1990-11-01

1992-04-21

Bennet, Henry A.

Drying and gas or vapor contact with solids

Apparatus

With means to treat gas or vapor

34 1P, 34 17, 34 68, F26B 334

Patent

active

051055554

ABSTRACT:
A plastic drying apparatus that uses microwave heating as means of heating a plastic thereby allowing the surface as well as the inside of particles of the plastic to be heated simultaneously and therefore can attain to bring the plastic to a highly dried state within a short period of time. A certain amount of a plastic is fed into a plastic drying tank. While the plastic is stirred, the plastic is heated and dried uniformly by microwaves generated by a microwave generating unit. The humidity is measured by a humidity measuring sensor and the plastic is highly dried automatically. Dried air nozzles are provided to the wall surface of the plastic drying tank for discharging air in a super-dried state in a widely flared manner so as to prevent the plastic powder, etc. from adhering.

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patent: 4043050 (1977-08-01), Hancock
patent: 4055001 (1977-10-01), Forster et al.
patent: 4103431 (1978-08-01), Levinson
patent: 4173608 (1979-11-01), Soulier

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