Control system with valve flaps for a drier

Details Control system with valve flaps for a drier Control system with valve flaps for a drier

1989-06-01

1990-08-21

Bennet, Henry A.

Drying and gas or vapor contact with solids

Apparatus

Rotary drums or receptacles

34140, F26B 1102

Patent

active

049494775

ABSTRACT:
For controlling the quantities of supply, waste and recycled air which can be transported by means of a blower (36) for the drying process in a drier (10), this latter comprises a cohesive valve space (38) in which two valve flaps (40 and 42) can be pivoted by a drive. According to the position which the two valve flaps occupy, so the quantities of air supplied and carried away through the apertures (54, 62, 70, 74, 76, 80) in the valve chamber (38) for the drying process are controlled. A third valve flap (44) which can be triggered by a drive controls the process of blowing the washing out of the drier drum (16) after drying. For the sound and heat insulation of the drier (10), a housing (150) in two halves (152 and 154) which covers the blower (36) and the heat exchanger (34) is provided over the valve space.

REFERENCES:
patent: 3190011 (1965-06-01), Shields
patent: 3831294 (1974-08-01), Freze
patent: 4268247 (1981-05-01), Freze

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