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选择滚简转数与直径是影响采煤机装煤效果及滚筒扬尘的关键因素,设计采煤机时必须重视这方面的问题。一、滚筒转数根据煤在螺旋叶片作用下的运动分析,煤的轴向运动速度U_x及切向运动速度U_t可由下式计算:
The choice of roll-off number and diameter is the key factor that affects the coal-loading effect and the dust of the drum. Designing the shearer must pay attention to the problems in this respect. First, the drum rotation According to the coal under the action of the helical blade motion analysis, coal axial velocity U_x and tangential velocity U_t can be calculated as follows: