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对选煤厂的煤尘污染的主要源设备-给料机及落料管进行了研究。通过分析煤尘污染的产尘机理和逸散规律,得出给料机的煤尘污染主要由于给料诱导风流正压和设备自身密封不严造成的;落料管煤尘污染主要由于高压诱导风流起尘以及表面裸露的皮带机机尾甩尘引起的。针对这2种设备设计了不同的除尘方案。
Coal dust pollution in the coal preparation plant - the feeder and the blanking tube were studied. By analyzing the dust generation mechanism and escape law of coal dust pollution, it is concluded that the coal dust pollution of the feeder is mainly caused by positive pressure induced by the feedstock and unscrupulous sealing of the equipment itself. The dust pollution of the blanking tube is mainly caused by the high pressure Merry dust and the exposed surface of the belt machine tail dust caused. For these two kinds of equipment designed a different dust removal program.