论文部分内容阅读
型采煤机采煤时,必须靠人工来清理螺旋滚筒未装走而留在工作面上的煤炭。产生这种现象的原因是,在批量生产的螺旋滚筒的装煤螺旋叶片的出口设有径向螺旋叶片,该叶片应消除运输机和滚筒螺旋之间的夹煤现象,但实际上,该螺旋叶片对煤流形成了附加阻力并使10～20％的落煤留在工作面上。其中有一部分煤炭是在采煤机下放时装到运输机上的,但在采煤机通过以后仍有5％的煤炭留下来,这部分煤炭一般
Coal mining machine, you must manually clean the spiral drum is not removed and left in the face of the coal. The reason for this phenomenon is that at the outlet of the coal-charging spiral blade of the mass-produced spiral drum there is provided a radial helical blade which should eliminate the phenomenon of pinching between the conveyor and the drum helix, but in fact, the helical blade Additional resistance to coal flow is created and 10-20% of the falling coal remains on the work surface. Some of this coal was loaded onto the transporter when the shearer was released, but 5% of the coal remained after the shearer passed this part of the coal