Shandong China Coal Import & Export Co., Ltd.

Many incorrect use of the method will lead to mining fan bearing temperature becomes very high, generally caused by these reasons: improper device, not smooth enough, cooling is not enough, the bearin

1.When buying mining fans should to clear the parameters of the mine fan, under normal circumstances, as long as refer to the original mine fan models, you can easily buy the appropriate mine fan; 2.M

Chemical oxygen self-rescuer in the mine down little maintenance, Just check whether the seal is open every day or the shell is damaged, Check the air tightness regularly, there is no special inspecti

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

The methods of oxygen supply for compressed oxygen self-rescuer

1. Grinding machine installed GX160 small gasoline engine (motor), under normal circumstances generally pull rope 3 to 5 times to start. If you can not start, do not endlessly pull the starting rope,