STUDYING DYNAMIC CHARACTERISTICS OF SKIP MOTION FOR CONTROLLING ELECTROMAGNETIC LIFTING INSTALLATION

The stability of underground mines is largely determined by reliable work of underground transport and lifting equipment of vertical shafts, which are being used to distribute the minerals and rocks onto the surface. With the current trend of mines that have exhausted existing uncovered coal seams and ore veins (placer) being closed, in the future only the mines that have revealed significant reserves of mineral resources at great depths will stably work. Of course, it requires high speed and capacity of the vessels, and, hence, the rest of the system parameters of the hoisting system: electric, lifting machinery, suspension ropes, reinforcement, suspension, bolting, etc. All of these settings are characterized by very high levels of dynamic loads on all elements of the hoisting system. With the increasing depth of mining and productivity of lifting equipment, in the conditions of unstable loads requirements to quality parameters of the elements of the hoisting system, their reliability and durability increase. The integration of mining enterprises, the transition to the development of seams at large depths cause higher loads on mine lifting equipment, the intensity of their work increase. Stationary lift installation is an essential link in the chain of transport of minerals from mine or quarry to the surface. But the application of existing outdated, inefficient mine winders has increased the cost of minerals for several times. The solution of this problem is the creation of electromagnetic lifting installation with which help it is possible to transport much more weight, spending in comparison with existing technologies less energy resources. Thus, the modeling of electromagnetic lifting equipment is an urgent task.