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小高炉重力除尘器内煤气灰的排放,原来是用一种钟形阀按杠杆原理人工启、闭,并用汽车或铁路敞车接灰输送。在排灰时,由于没有密封,造成粉尘飞扬,在距排放中心10m处测量,含尘量竟高达864mg/m~3。同时,煤气逸出,严重污染环境,危害工人身体健康。我矿冶炼厂在100m~3高炉和55m~3高炉重力除尘器钟形阀下部均加装了一个自行设计与制造的星形叶片阀,由电动控制启闭,放灰时用密封式翻斗汽车(即在汽车翻斗上增加一密封篷)配合装运。经多年使用,效果
Small blast furnace dust within the gray dust emissions, the original is a bell-shaped valve according to the principle of lever manually Kai, closed, and use the car or railway gondola ash delivery. In ash discharge, because there is no seal, resulting in dust flying, measured at a distance of 10m from the discharge center, the dust content was as high as 864mg / m ~ 3. At the same time, the gas escaped and seriously polluted the environment, endangering the health of workers. I mine smelter in the 100m ~ 3 blast furnace and 55m ~ 3 blast furnace gravity bell lower part of the valve are equipped with a self-designed and manufactured star blade valve, opened and closed by the electric control, put the ash with a sealed dump truck (That is, adding a sealed hood on the car dump) with the shipment. After years of use, the effect