Since the single hydraulic prop has a higher working stroke, stability, and safety factor than the aluminum alloy steel acrow prop, it has recently become the first choice of many people, but in the process of using it, have you encountered the problem of the exhaust device being blocked What? If you have not found a suitable solution, just read the article carefully, I believe you will gain.
Each DWX type specification can replace the ordinary DZ, SS type pillar 2-4 specifications, which facilitates pillar management and reduces capital investment and management costs. For working faces with large roof sinking, DWX type pillars can still meet a large constant increase in resistance and decrease distance, and it is convenient to return to the pillars, which improves the recovery rate of the pillars and reduces the consumption and production costs of the hydraulic prop. The mixed use of the floating plunger type and the fixed piston type not only makes the bearing capacity distribution reasonable, but also solves the problem of the injection height of the large-stroke hydraulic prop.
The single hydraulic prop is filled with liquid on the outer guide sleeve of the first-stage working cylinder, and there is no circumferential welding seam on the live cylinder which is difficult to ensure the process, which avoids the hidden accidents of the effective sealing performance of the pillar due to the leakage or fracture of the weld. An exhaust device is added to the large and high pillars to solve the problem of liquid injection in the middle or bottom of the large and high pillars and exhaust from the inner cavity of the pillar.
At present, single hydraulic props at home and abroad are welded on the stub with the three-purpose valve. When the stub is raised, the operator must rise with it, especially for the higher working surface, the operator is very uncomfortable. Convenient and unsafe; low operating cost DWX type pillar adopts advanced technology for special surface treatment process, so that the steel acrow prop has the characteristics of anti-corrosion, wear resistance and anti-bubble collapse. The working medium uses the neutral water of the coal mine to ensure the working environment and The groundwater is not polluted, it also ensures the quality of drinking water in the mining area, and also ensures the health of the people in the mining area. It is an ideal environmentally friendly product for coal mining face support.
The single hydraulic prop adopts the principle of plunger suspension technology, so that the hydraulic suspension force directly acts on the top cover through the inner cavity of the single hydraulic prop movable column, so that the hydraulic suspension force shares four-fifths of the working resistance of the single hydraulic prop From left to right, the axial force of the movable column is only one-fifth of the working resistance, which improves the stability and safety of the column, and also greatly improves the support height and load-bearing capacity of the steel acrow prop.
