GB157974A - Centrifugal separator for clarifying liquids by a continuous process - Google Patents

Abstract

157,974. Rialland, A. J. M. April 30, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Strainer separators.-A centrifugal separator for continuously clarifying liquids has two rotating surfaces a, b with a number of spiral passages e between them extending from the axis to the periphery and being open at each end. The wall d<2> of each passage is perforated and liquid is supplied through the centre pipe c and the separator is rotated. The liquid passes through the perforated walls d<2> and strikes the inclined unperforated walls d<1> ; it is thus deflected through the lower plate b and passes out by the pipe g. Any solid particles remain in the passages until they reach the periphery and then pass into the container h. A pipe p may introduce a liquid in the form of a jet or spray into the passages. In a modification the matter may travel from the circumference to the centre, and the container may rotate with the liquid while the separator remains stationary. In another modification the rotating surfaces may be conical; and in another modification the passages, instead of being spiral, may be straight and may project tangentially from a central tubular shaft.