Cooling process for material beds of bulk materials

Details Cooling process for material beds of bulk materials Cooling process for material beds of bulk materials

1982-08-09

1984-07-03

Camby, John J.

Drying and gas or vapor contact with solids

Apparatus

With means to treat gas or vapor

432 77, F26B 700, F27D 1502

Patent

active

044570813

ABSTRACT:
In a cooling process for material beds of bulk materials like cement clinker taking place on grate coolers increased bed depths and increased air velocities are provided by decelerating an upper layer of the material bed, which may be a fluidized bed of a fine fraction of the bulk material, with respect to the bottom layer or fixed bed of the material bed in order to obtain a material discharge of uniform temperature. For the purpose of such deceleration an adjustable stop wall is provided leaving an adjustable passage towards the grate for the material. The stop wall includes a thrust limit detector to allow for a crushing or passing of any chunks. Hot dribblings may be pneumatically recycled onto the top of the material bed by means of the increased air pressure.

REFERENCES:
patent: 3079701 (1963-03-01), Helming et al.
patent: 3155378 (1964-11-01), Berg et al.
patent: 3539164 (1970-11-01), Brachthauser

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