GB341298A - Improvements in or relating to centrifugal separators - Google Patents

Abstract

341,298. Centrifugal machines. ZELEZNIAK, W., Zduny, Krotoszyn, Poland. Feb. 6, 1930, No. 4031. [Class 23.] A centrifugal machine, for the separation of sugar and like materials from finely divided impurities, in which the sugar may be bleached or otherwise treated, has a number of concentric conical sieves and partitions forming chambers through which the rejected material passes to tanks. The casing 1 of the machine is supported by brackets 2 from the cylindrical cover 5 fixed to the frame 4. The feed pipe 11 is arranged at the axis of the inclined perforated walls 12, 17 which are covered by metal sieves. The space between the screens is divided into chambers 13, 16. The material is supplied through the pipes 10, 11 and is thrown on to the screen 12. Rejected material passes through the sieve into the chamber 13 from which it drops to the slope 14 and passes thence to a tank. The retained material passes up the inclined wall 12 and falls to the bottom of the chamber 16 from which it is thrown upon the screen 17. The rejected material passes to the tank through the pipe 21 and the treated material passes over the edge of the screen 17 to the hopper 8 and conveyer 19. The thickness of the layer of material discharged over the screen can be varied by operation of the lever mechanism 23 to adjust the position of the conical ring 22. During the passage through the chamber 16 the material may meet a bleaching agent and steam, the former being admitted through the pipe 25 and the latter through the pipe 26. The vapours are withdrawn through the pipe 24.