FIELD: construction industry; ventilation and air-conditioning system in manufacture of cement. SUBSTANCE: cement and dust collector includes non-regulating device mounted on smoke stack for partial shutting-off of flow of dust-laden air. Mounted on this device are: branch pipe made in form of screened cone and covered with cylindrical screened cap, four-sided frame opening with screened sheets secured on inner and outer sides and hood protecting against weather. EFFECT: enhanced efficiency of dust collection. 5 dwg
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