GB564689A - Improvements in or relating to separator for dust or other solid impurities - Google Patents

Abstract

564,689. Centrifugal separators. NILSSON, A. E. Aug. 27, 1943, No. 13992. Convention date, Feb. 4, 1942. [Class 23] A machine for the separation of dust from a gas or vapour by treatment with a liquid has means to re-circulate some of the liquid after it has absorbed some fine dust, thus rendering it more viscous. Two or more fan wheels 6, 10, driven by an electric motor 1, act on gas and liquid entering through ports 3, 34 respectively. Sloping walls 33, 30, 28 guide the mixture to the lower part of a container 8. The liquid is discharged through a tube 17 to a tank, or separating basin, some of the liquid flowing through a pipe 21 to a centrifugal pump 23 which supplies a pipe 31. Purified air is led away through an outlet 25 after having its velocity reduced in the lower part of the container. Fresh liquid is supplied by a pipe 13. The fan wheels may be constructed as parallel discs with radial vanes in between, and the sloping walls 30 bent to coact with this form of disc. Guide cones 29, 26 are bolted to plates 28. These plates may have walls diverging outwards, attached to their lower ends. An overflow pipe 14 is provided. A three-way cock 24 permits closure of the pipe 31, and liquid from the pipe 19 may be pumped through an ejector 18 to clear the pipe 17 of any impurities.