B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
182/85
B01D 29/00 (2006.01)
Patent
CA 1120868
Abstract Peridiocally operating pressure filter for the concentration of a solid matter suspension, comprising a filtering tank with an input conduit for introducing the suspension to be filtered under pressure, and a drain conduit for removal of the concentrated sludge, and a number of filtering elements suspended from the ceiling, through which the filtrate flows and which are internally in communication with a filtrate collecting tank located above and which thereby collect on their outer surface sludge. The sludge has been arranged to be periodically detached by making the pressure inside the filter- ing element higher than on its outside. The filtrate is under atmos- pheric pressure in the collecting tank. For detaching the sludge periodically from the outer surfaces on the filtering elements the pressure has been arranged to be removable from the filtering tank by opening for the suspension residing there, an exit flow, whereby the filtrate in the collecting tank will pass under hydrostatic pressure effect in counter-current fashion through the filtering elements.
323183
Engdahl Holger
Luukkainen Yrjo
Savolainen Jaakko
Surakka Jorma
Tolvanen Martti
Enso-Gutzeit Osakeyhtio
Marks & Clerk
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