GB364449A - Improvements in and relating to centrifugal dust separators and collectors - Google Patents

Abstract

364,449. Centrifugal gas cleaners. TONGEREN, H. VAN, 26, Postlaan, Heemstede, Holland. April 2, 1931, No. 10020. [Class 23.] A centrifugal dust separator and collector has several dust outlets which skim the peripheral current in succession, the outlets being in positions determined by a formula given in the Specification. The complete separator is built up of units, one of which is shown in Fig. 2. A number of castings is held by bars 1 between a cover and a baseplate, the correct distances being secured by the use of pieces 2. In each unit the main stream of dust-laden air enters the curved channel 4 ; the dust particles are thrown to the outside of the channel and with a small quantity of air pass into the outlet 6 and thence to a small cyclone separator. The separating channel is long and has comparatively small radius and width. At the part 5 where the first skimming occurs, the curvature of the main channel reverses and the stream divides between the two channels 7, 8. Dust channels 9, 10 leading to the outlets 11, 12 are provided at the end of the channels 7, 8. Dampers 14, 15, 16, Fig. 1, may be used in the complete separator so that the number of units employed may be varied. Inclined conduits down which the dust can slide after separation may be used. In the modification shown in Fig. 3, the dust-laden gases are led through the conduit 20, and after passing through a complete circle the peripheral dust is removed at the first outlet 21 and passes to the cyclone separator 23. The gas stream is subdivided and passes through subsidiary channels and dust is removed through the outlets 28, 31, 34. With this arrangement of channels a long separating passage is assured. In the further modification shown in Fig. 5, the volute of the fan 31 is subdivided to form the separating passages the entrances to which are controlled by dampers 41. The peripheral dust streams are removed by outlets 42, 43, 54 and are discharged through lateral passages.