煤炭在开采、转运和堆放的过程中,往往会混进一些废损的铁器工具,铁钉、钢筋头等各种金属物。对于燃烧煤粉的锅炉来说,这些金属物是十分有害的,一旦进入加煤的铰轮或是煤粉破碎机内,就有可能造成设备事故,影响生产的正常进行。既使在皮带运输机上使用了电磁铁,也很难保证把混在煤里的金属物全部清除干净。为此,我们和 In the process of mining, transiting and stacking, coal often mixes with a variety of wrecked iron tools, nails, steel bars and other metal objects. For boilers burning pulverized coal, these metals are very harmful, and once they enter the coal pulverizer or pulverizer, it may cause equipment accidents, affecting the normal production. Even in the belt conveyor using the electromagnet, it is difficult to ensure that all the metal mixed in the coal clean. To this end, we and