B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
23/365, 23/414
B01D 11/02 (2006.01) B01D 11/00 (2006.01)
Patent
CA 2028842
18 Abstract The process and the continuously working installation are intended for the extraction or flushing out of a substance from a heterogenous system with a solid phase of fibrous or granular material by means of a liquid, which, in the course of the process, forms a liquid phase which is increasingly loaded with the substance to be extracted or flushed out. The solid phase (2) is advanced in the installation with conveyor means (9, 9', 9"). The liquid phase (4, 4', 4") passes through the installation substantially in the opposite direction to the solid phase. Elements (30, 31, 32, 30', 31', 32', 30", 31", 32") for compressing and decompressing the solid phase (2) are disposed along the path of the solid phase (2) through the installation which may consist of several treatment stages (5, 5', 5") connected in series. Means for drawing off at least a part of the liquid phase are foreseen in each of the compression zones. The liquid phase drawn off is fed back each time to the solid phase at a location which lies counter to the flow direction of the solid phase and closer to the feed device (1) of the latter than the corresponding drawing-off means. (Fig. 1)
Dragicevic Zoran
Laycock Sa
Robic
LandOfFree
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