Density control system

Details Density control system Density control system

1976-04-21

1977-09-13

Serwin, R.E.

Chemistry: physical processes

Physical processes

Crystallization

23253A, 23284, 73 32R, 55 84, 423242, C01B 1758, B01J 1000, G01N 926, G01N 936

Patent

active

040478912

ABSTRACT:
An air quality control system scrubs flue gas of SO.sub.2 and particulates with a slurry of lime/limestone and water. The system includes a tank below the contact of gas and slurry in which the chemical action is completed and from which the slurry is recirculated to the scrubber. A bubbler system is connected to the reaction tank to detect the density of the slurry and monitor or control the density. The bubbler system is supplied the liquid and dissolved solids decanted from the thickener to which the slurry is drawn for disposal.

REFERENCES:
patent: 3433057 (1969-03-01), Halsey
patent: 3897540 (1975-07-01), Onnen
patent: 3904370 (1975-09-01), Robison
patent: 3989465 (1976-11-01), Onnen

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