mill - coal ball mill level measurement
Coal Ball Rolling Mill Level Measurement. Coal Ball Mill Level Measurement tasleek . A. Abutment In coal mining, 1 the weight of the rocks above a narrow roadway is transferred to the solid coal along the sides, which act as abutments of the arch of strata spanning the roadway and 2 the weight of the rocks over a longwall face is transferred to the front abutment, that is, the solid coal ahead ...
![](/images/whatsappp.png)