Vibration classification screen is the key to ensure the quality of washing raw coal and product raw coal in the process of changing from run-of-minecoal to washing raw coal.
振动分级筛在矿井毛煤转化为入洗原煤过程中是保证入洗原煤和产品原煤质量(粒度合格)的关键设备。
2
This text explains to Xutuan coalmine west breeze well and main well a method, error margin for ofrun-through measuring analysis with anticipate.
介绍了许疃煤矿西风井与主井之间的贯通测量的方法、误差分析和预计。
3
The power run steadily, and its brake function was improved apparently, and satisfied with require of safety in production of coalmine.