Switched reluctance motor structure than any other kind of motor should be simple, there is no slip ring in the motor rotor, windings and permanent magnets, etc., but in the stator has a simple concentrated winding, the winding ends are short, no phase Jumper, easy to maintain and repair. Thus rel
Structural characteristics of switched reluctance motor">Continue Reading →
I II recovery team 1-11170 mining face to the lower head 7 # Roof coal tie layer is thinned (FIG), 7 # -39 #, # -60 # 47, # 70, until the tail groove coal mining face and other The location of the super high roof is broken, the coal wall is easy to help; to ensure safe and normal production, this sa
Safety technology for mining surface with thin coal bel…">Continue Reading →
The gas accumulated in the roof space of the roadway can be treated in time by the following methods; the wind sleeve ventilation method. That is to say, a branch of the small air duct on the air duct is connected to the top of the roof of the roadway, and the accumulated gas is excluded; the wind d
How to deal with the accumulation of gas in the roadway…">Continue Reading →
The SEM (National 3) rollers introduced by ShanGong Machinery Co., Ltd. Why both the owner and the owner boast that it is durable and efficient? Because of the patented "black technology," the roller is particularly different from the Shangong roller. One of the most compelling examples o
Demystifying the "black technology" of Shango…">Continue Reading →
At 17:30 on March 9, 2011, the Dingshengxin quarry in the town of Wuyinhe, Wuchang City, Harbin, exploded when the blasthole was filled with explosives, killing two people and injuring two others. On April 4, 2009, two workers working in the mines at the Dongyuan Stone Material Factory in Juchao Di
Problems and current situation of safe production in op…">Continue Reading →
In recent years, the frequent occurrence of child abuse on campus has cast a shadow over the campus that is supposed to be a joy to challenge the sensitive nerves of the public and torture the current status of campus security management. From the introduction of the government's 2017 campus n
The Application and Development Trend of Electronic Fen…">Continue Reading →
The beneficiation equipment is an element that constitutes the beneficiation process, and the different beneficiation processes are not the same. The ore dressing methods include re-election, magnetic separation, electric selection, flotation, chemical selection, photoelectric selection, friction se
Method of mineral processing equipment for beneficiatio…">Continue Reading →