Thickeners with vibrating inclined plates

Details Thickeners with vibrating inclined plates Thickeners with vibrating inclined plates

B - Operations, Transporting

01

D

B01D 21/28 (2006.01) B01D 21/00 (2006.01)

Patent

CA 2355575

A thickener with vibrating inclined plates placed inside is disclosed for separating solids from feed liquor of suspended solids, by gravity settling, to form a thickened suspension as thickener underflow effluent and recovering clarified liquid as thickener overflow effluent. The thickener is composed of a liquid-holding tank of rectangular or circular geometry, preferably with triangular or conical bottom section. Inside the thickener, vibrating inclined plates are placed, preferable in the compression zone of the thickener. The number and geometry of the plates, and their inclination angles are adjusted depending on the sliding characteristics of the sedimenting suspension. The inclined plates vibrate continuously or periodically at selected vibration directions, amplitudes and frequencies. Thickener overflow or the clarified fluid, which is the process water for most of industrial applications, is collected in a launder and continuously discharged. Thickener underflow is the thickened suspension, which is continuously discharged from the bottom of the thickener using screw conveyer. The present invention can be used for thickening of suspensions by means of batch or continuous operating modes.

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