The utility model discloses a protective sleeve for a single hydraulic prop and a movable column body. It is composed of a ring-shaped tightening sleeve, a pressing plate, and a cylindrical telescopic
In modern society, competition is becoming increasingly fierce. Under such circumstances, coal companies have also increased their requirements for coal mine construction. Among them, the application
At present, part of the stope supported by hydraulic prop and SGWD-17 slab conveyor are used to form a working face. The working face and roadway width adopt 1.0-meter twisted roof beams and full-colu
According to the results of mine pressure, the hydraulic acrow propsload of the working face, the amount of roof subsidence, and the degree of roof fracture are all increasing from the coal wall to th
Compared with the currently used DW type prop series hydraulic acrow props, DWX type suspension hydraulic prop series products have the following characteristics:
In the coal industry management work, we are not afraid of problems. The key is whether we can find a solution to the problems. In view of the problems in the wall working face and the hydraulic prop
