Liquid purification or separation – Constituent mixture variation responsive
Patent
1982-03-05
1983-07-19
Adee, John
Liquid purification or separation
Constituent mixture variation responsive
210138, 210199, C02B 120
Patent
active
043942610
ABSTRACT:
A water clarification system for boiler feed water and similar applications. It employs a settling tank and adds a chemical to the inlet stream for causing precipitation of suspended matter. Clarified water is drawn off at an outlet near the surface. The system includes a sludge draw-off line with a valve for regulating the amount drawn. And, there is a small sized connection out from the tank at a desired level above the bottom, which is for drawing a continuous sample. Also, there is a back flush connection from the inlet stream into the sludge draw-off. Timing controls are applied to the sludge draw-off for periodically opening the valve if the sample indicates turbidity. Otherwise, the draw-off cycles are omitted. And, there is an override back flush cycle which is timed for keeping the sludge draw-off line clear.
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patent: 3421624 (1969-01-01), Boyd
patent: 3542674 (1970-11-01), Machlan
patent: 3605775 (1971-09-01), Zaander et al.
patent: 3798160 (1974-03-01), Huffman
Adee John
Dearborn Henry C.
Kulason Robert A.
Ries Carl G.
Texaco Inc.
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