GB700352A - Improvements in or relating to the separation of dust from air or other gases - Google Patents

Abstract

700,352. Separating dust from gases. GILES, E. V. April 17, 1951 [April 26, 1950], No. 10229/50. Class 8 (1). A substantially straight portion 12, Fig. 3, of a dust retaining endless travelling band 14 comprising a textile fabric, having a raised or pile surface, forms one boundary wall of a duct 10 along which dust-laden gas passes in a direction parallel and preferably opposite to that of the operative portion of the band; said latter having cleaning means e.g., a stripper brush 53 whereby a contaminated band portion is replaced by a cleaned portion. A second and parallel duct 11 is connected to the duct 10 by a duct 16 and has one wall bounded by a run 13 of the belt 14 which passes over an adjustable roller 18 and a roller 19 given a step by step rotation by conventional ratchet 36, Fig. 2, operaated by a pawl 37 carried by a bell crank 38 pivoted to the framework on a pin 39 (not shown) and actuated by a continuously rotating flywheel. The stripping brush 53 is rocked about a shaft 58 through gearing connected by a rod to the bell crank 38, and the roller 18 is driven from the roller 19 through sprockets 43, 44 and a chain 45. In operation dusty gas entering the duct 10 at an inlet 15 is deflected against the oppositely moving belt 14 by blades 34 and clean .gas leaves by an outlet 17, the dust stripped from the belt 14 being collected in a hopper 51. In a modification the path of the band is triangular two sides of which bound the ducts 10, 11 and the base which forms the third side is cleaned by beaters. Specifications 572,394 and 632,360 are referred to.