What Are The Working Methods Of The Shearer?

What Are The Working Methods Of The Shearer?

1, single drum shearer

The single drum shearer has three ways of feeding: that is, shearer advanced knife and then move the nose, although this approach is relatively simple, its infeed time is relatively long. Move the nose befor infeed, can make full use of working hours, but open the gap workload have heavy workload, feeding the same time moving head. The infeed is simple and the time is short, but need a strong force to move the equipment of conveyor. There are two ways to cut coal:unidirectional coal mining, coal mining machine on a knife, down loaded coal. It has the advantage of high efficiency of coal loading, but the cutting edge of the face for a long time, so it is only applicable to the coal seam that have Large amount of coal loaded. Two-way coal mining, round-trip into a knife. Its advantage is that it can improve the utilization of coal mining face, making the production capacity greatly increased, but it will increase the workload when mining the high coal seam.

2, Double drum shearer

The shearer has a roller at both ends, the front roller cutting top coal on top, the rear drum cutting the bottom coal.The two rollers generally rotate in the opposite direction, the left side of the driver with the left screw, the right side of the driver with the right screw, can also rotate in the same directions. Generally use two-direction coal mining, the way of oblique feed that knife befor the move head; can also to use the way of tangential feed that knife at the same time moving head.