Fluidized bed apparatus for the treatment of fluidized carbon bl

Details Fluidized bed apparatus for the treatment of fluidized carbon bl Fluidized bed apparatus for the treatment of fluidized carbon bl

1986-01-14

1988-07-05

Marcus, Michael S.

Chemical apparatus and process disinfecting, deodorizing, preser

Control element responsive to a sensed operating condition

Responsive to liquid level

34 57A, 73293, 201 31, 422111, 422141, 422143, 422150, 422147, 423460, B01J 818, C09C 148

Patent

active

047553588

ABSTRACT:
Method for the treatment of fluidized carbon black with gases in a fluidized bed, wherein the carbon black and the treatment gases are conveyed for introduction in an unique operating procedure into the treating region in a countercurrent stream manner. The mass streams of the carbon black and the treating gases are held constant and the mass streams of the starting carbon black or the treated carbon black is regulated with the help of an optical electrical level sensor so that the height of the fluidized bed is held on a predetermined level. An apparatus is shown for the carrying out of the fluidized bed countercurrent process which has a novel carbon black product delivery system and is provided with a optical electrical level sensor means for controlling the level of the fluidized bed. The sensor comprises a hair pin shaped lighting circuit composed of two legs or rods separated by a gap. A light source impinges on the end of one of the said legs and the other leg is oriented to an electrical signal generating light sensor.

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patent: 4468567 (1984-08-01), Sasano et al.
patent: 4518750 (1985-05-01), Govoni et al.

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