Internal injection single hydraulic prop manufacturer, Shandong internal injection single hydraulic prop

Internal injection single hydraulic prop manufacturer Shandong Internal injection single hydraulic prop
Internal injection single hydraulic prop manufacturer Internal injection single hydraulic prop quotation Internal injection single hydraulic prop quality Internal injection single hydraulic prop Pillar purpose
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Internal injection single hydraulic prop
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The internal injection type single hydraulic prop is a constant resistance prop and a metal hinged roof beam. It is suitable for the support of the roof of general mechanized coal mining working faces in coal mines. It can also be used for end support or temporary support of comprehensive mechanized coal mining working faces. support.
The internally injected single hydraulic prop is suitable for roof support and end plate support of coal mining working faces. Because the pillar has a large load-bearing capacity and strong anti-eccentric load capability, it has a large working stroke and a wide range of use. Therefore, the internally injected single hydraulic prop Pillars can be used in thin coal seams, medium-thick coal seams and thick coal seam working faces.
Working principle of internal injection single hydraulic prop
Internal injection single hydraulic prop is mainly composed of top cover breather valve safety valve unloading valve live cylinder body handle body oil cylinder body piston plunger hand pump unloading device Composed of extension tubes and other parts. There is a small pump station inside and a handle body outside. There is no need to use a special hydraulic pump station. The handle body is universal. If you buy a batch of single hydraulic props, you only need to equip it with a handle body. The working fluid of the internally injected single hydraulic prop is the hydraulic oil. When the hydraulic oil returns to the column, the hydraulic oil in the cylinder flows back to the inner cavity of the live column to form a closed cycle. It does not require a pumping station and piping system supporting equipment. It is low-cost and low-cost. There is no power supply and pumping station. Because the working fluid is a closed circulation prop, the hydraulic oil flows back to the inner cavity of the living column when the prop returns to the column, thereby realizing a closed circuit cycle of the prop's own hydraulic oil. The hydraulic oil consumption is very small. The prop hydraulic system is a closed system, and the hydraulic oil does not leak out and does not pollute the environment. It is good for environmental protection and has little impact on the production of the working surface. It better maintains the environment and working conditions of the working surface. All the valves of the pillar are installed in the inner cavity of the pillar. The possibility of external contamination is small and the reliability is high.
The scope of application of the internal injection single hydraulic prop
The gently sloping mining working face with a coal seam inclination angle smaller than the coal seam inclination angle can also be used in the mining working face with an inclination angle of ~ after taking certain safety measures.
The height is not greater than the maximum height of the pillar, that is, the maximum support height of the type pillar is the support height. The range of the support height is generally ~, the maximum support height of the type pillar is the support height, and the range of the support height is generally ~ and so on.
During the pressure-bearing process, the middle part of the pillar should not be used as the fulcrum of the push-slide jack.
When using in the blasting mining working surface, measures should be taken to prevent the surface of the live column of the pillar from being collapsed.
Contact person
Manager Wang
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Company name China Coal Industry and Mining Materials Co., Ltd.