FIELD: devices for cleaning gases of dust; dust control in transportation of loose materials. SUBSTANCE: pressure is abruptly equalized between filter bags and collecting bin at moment when plant is shifted from working mode to inoperative mode or when rarefaction in filtering chamber gets equal to P=0.8 atm; fan is switched off, rod of pneumatic cylinder is shifted from working position to inoperative position, dust-laden gas supply damper is changed-over from OPEN to CLOSED position, damper interacting with atmosphere is changed over from CLOSED to OPEN position; switch for supply of compressed air to pneumatic cylinder is shifted to STOP position; as a result, pressure is abruptly equalized from P=0.8 atm to P=1 atm. Filter bags are stirred by λmin= 40 mm. EFFECT: enhanced efficiency. 3 cl, 5 dwg
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Authors
Dates
1997-08-10—Published
1994-03-16—Filed