Method and apparatus for filling, blending and withdrawing solid

Details Method and apparatus for filling, blending and withdrawing solid Method and apparatus for filling, blending and withdrawing solid

1989-02-02

1990-03-13

Jenkins, Robert W.

Agitating

By injecting gas into mixing chamber

366 3, B01F 1302

Patent

active

049078925

ABSTRACT:
An apparatus and method are provided for blending solid particulate material. The invention employs equipment for enabling simultaneous drain and recycle, for selective top filling or bottom filling of the vessel, and for providing a bypass line for removing plugs which may form in the lift pipe. The apparatus includes a continuous blending unit which includes a sensor to measure the amount of material in the vessel by measuring its height or weight, and a controller, responsive to the sensor, for controlling the fresh particulate material feed rate and/or the material withdrawal rate so that the fresh material supply rate and the blended material withdrawal rate are proportioned to control the material level within the vessel to a desired level.

REFERENCES:
patent: 3158362 (1964-11-01), Seifarth
patent: 3216629 (1965-11-01), Goins
patent: 3276753 (1966-10-01), Solt
patent: 3421739 (1969-01-01), Alberts
patent: 4486101 (1984-12-01), Brar

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