CYCLONE-TYPE DUST COLLECTOR Russian patent published in 1999 - IPC

FIELD: cleaning gas of dust. SUBSTANCE: inner space of housing of cyclone-type dust collector is divided by partition into upper and lower cavities; partition is provided with many cylindrical filters; suction passage may be communicated with lower cavity; common exhaust passage may be communicated with upper cavity; chamber for withdrawal of accumulated dust is secured on lower end of cyclone housing; exhaust fan is connected with exhaust passage of cyclone housing. Dust collector is also provided with shut-off back-wash valves may open and close upper end sections of filters; they provided with back-wash nozzles, shut-off valve actuating mechanisms intended for opening and closing the shut-off valves; dust collector is also provided with compressed air hoses connected with back-wash nozzles of shut-off valves and electromagnetic back-wash valves to control delivery of compressed air and to discontinue delivery of compressed air used for back-wash procedure. Each filter is separately subjected to back-wash procedure by supply of compressed air to filters through compressed air hoses with upper end parts of filters closed by means of shut-off valves. EFFECT: enhanced efficiency of dust collection and back-wash of filters. 5 cl, 6 dwg