Why can single hydraulic prop become everybody's favorite product? This is mainly due to its working characteristics, the single hydraulic prop working characteristics for constant resistance type curve. Single hydraulic prop with large stroke, easy operation and maintenance, good stability and other characteristics, all can be widely used in mine safety protection. Seal compensation and seal tensioning technology are selected for each seal of the single hydraulic prop, which reduces the replacement rate of seals and makes brief repair. Let's take a look.
Working characteristics of single hydraulic prop
1. Its initial bracing force depends on the pump pressure, and its working resistance is regulated by the safety valve.
2. The support has two working stages: increasing resistance and constant resistance. In the stage of increasing resistance, the working resistance under the influence of roof pressure gradually rises to the position of rated working resistance. This stage is characterized by a non-open relief valve and a small roof subsidence. The constant resistance stage is when the bearing capacity of the prop exceeds the rated working resistance, the safety valve opens, the liquid in the column overflows, the prop shrinks, the working resistance drops slightly, the safety valve closes, and the roof reaches the balance of the heart. This process is repeated to ensure that the rated working resistance within the strut is maintained and that the roof is not damaged as it sinks.
3. Therefore, its characteristics are superior to wood and friction struts. The hydraulic pressure flow is very big, the stability performance is quite good, not only can be used with the metal hinged roof beam for the high gear and the gun adopts the working face to support the roof and the fully mechanized mining face to support the end, but also can be used alone for the point column or other temporary support.
To sum up, the single hydraulic prop with large stroke, easy operation and maintenance, good stability and other characteristics, all can be widely used in the mine safety protection, become a favorite product. Shandong China Group produces and supplies prop for coal mines, and related accessories. If you have other questions or needs, welcome to come, we will provide you with good service and products!
