Thickener/clarifier feedwell assembly with infeed rotation

Details Thickener/clarifier feedwell assembly with infeed rotation Thickener/clarifier feedwell assembly with infeed rotation

B - Operations, Transporting

01

D

B01D 21/24 (2006.01) C02F 11/00 (2006.01)

Patent

CA 2753202

A feedwell assembly for a thickener/clarifier includes a feedwell body (22; 50; 112; 166; 240), at least one infeed conduit (21; 52; 120; 226) connected at a downstream end to the body, and at least one spin or rotation inducement element (30; 54, 54', 54'; 78; 101, 102; 178, 184; 245) disposed as part of the infeed conduit for imparting rotation or spin to a slurry stream (42; 58; 108, 110; 182, 188) fed to the feedwell body via the infeed conduit. The spin or rotation inducement element may be a fixed and rigid structural member such as a vane or baffle, or include actively operated elements (35; 53, 53'). Multiple such spin or rotation inducement elements may be provided in various locations in the infeed conduit.

Un ensemble puits d'alimentation pour un épaississant/clarificateur comprend un corps de puits d'alimentation (22, 50, 112, 166, 240), au moins un conduit d'alimentation (21, 52, 120, 226) relié au niveau d'une extrémité aval au corps de puits d'alimentation, et au moins un élément de tournoiement ou de rotation (30, 54, 54', 54', 78, 101, 102, 178, 184, 245) conçu comme une partie du conduit d'alimentation et permettant la rotation ou le tournoiement d'un flux de pâte (42, 58, 108, 110, 182, 188) fourni au corps de puits d'alimentation par l'intermédiaire du conduit d'alimentation. L'élément de tournoiement ou de rotation peut être un élément structural fixe et rigide comme une aube ou un déflecteur, ou peut comprendre des éléments actifs (35, 53, 53'). Ces multiples éléments de tournoiement ou de rotation peuvent être disposés en de multiples emplacements dans le conduit d'alimentation.

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