1. Derricks can be divided into steel derricks, reinforced concrete derricks, brick derricks, and wood derricks according to different construction

The mining signal system realizes real-time monitoring and control of the internal environment of the mine and the operation of equipment

Mining winches are mainly used to lift and lower personnel, materials and equipment in mines. It is able to stably

In order to ensure the safe and reliable operation of the overhead wheel device, its maintenance and management should be

The sheave device of multi-rope friction hoist is mainly composed of roof wheel shaft, fixed wheel, traveling wheel, bearing, bearing

The speed of the permanent magnet synchronous motor is determined by the frequency, which does not change with the fluctuation