Process for mixing bulk materials

Details Process for mixing bulk materials Process for mixing bulk materials

1988-02-10

1989-11-07

Hornsby, Harvey C.

Agitating

By injecting gas into mixing chamber

366106, 366107, 366189, 366192, B01F 1302, B01F 1502

Patent

active

048787582

ABSTRACT:
The instant invention relates to a process for the blending of bulk materials by means of a jet gas blender, whereby the blending porcess is initiated only when full gas pressure is reached and when the valve immediately upstream of the storage tank (3) has been closed. At the end of the set time period "t.sub.1 " the valve (4) leading to the blending container (6) is closed in effect simultaneously and the valve (4.1) leading to the storage tank (3) is reopened, whereby the blended material settles in the blending container (6) without being disturbed by turbulence in this control position and whereby this phase is maintained for a set period of time.
Only at the end of that period of time is the line cross-section leading to the filter (8) opened to allow exhaust air to go through, and its passage is thereby adjusted so that the quantity of exhaust air going through the filter remains approximately constant per time unit.
When the pressure in the blending container (6) has dropped to the level of the atmospheric pressure the material is discharged via the discharge opening.

REFERENCES:
patent: 2886899 (1959-05-01), Watkins
patent: 3097828 (1963-07-01), Grun
patent: 4128343 (1978-12-01), Moked et al.
patent: 4168913 (1979-09-01), Kono
patent: 4223044 (1980-09-01), Se
patent: 4472062 (1984-09-01), Balzau et al.
patent: 4655603 (1987-04-01), Palm
Wendel, "Gasstrahlmischer pneumatische Mischeinrichtung fur Schuttguter".

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