Suspension of single hydraulic prop is the type of single hydraulic prop, but outside than type single hydraulic prop and has a very significant advantages, that is type DWX single hydraulic prop with plunger suspension technology principle of levitation force reached four 5 of the working resistance, prop stress is only one 5 of DWX prop type three with valve in hand on the body, filler, three with the valve does not rise, with live column of prop is easy to operate, safe and reliable. Large working stroke, expand the use range, especially the working face with large roof subsidence, DWX type large travel prop can still meet the large constant increase drag drop distance, not only convenient column return, but also improve the recovery rate of the prop, reduce the prop consumption.
Suspension type single hydraulic prop is used as support equipment in coal mine, coal mine underground is more dangerous place, so the use and management is more careful. And the suspension type hydraulic prop is a kind of suspension hydraulic prop. Then the following small make up to take a look at the experienced staff to sort out the single hydraulic prop management method.
1. Firstly, train the full-time team of prop use, handling, management and maintenance, establish the management responsibility system and acceptance system, and improve the management procedures. Count and verify the quantity carefully, and trace the responsibility of those who cause serious damage or loss in use or handling, and give corresponding punishment.
2, in the use of the process, encountered one of the following circumstances, the prop must be immediately out of the well repair: The live column does not drop after unloading; Unloading mechanism failure; The prop column has obvious deformation or obvious damage; The living prop of a prop retracted to the bottom to form the support of a dead prop.
3. The props used in the working face shall be in good condition, and the integrity rate of the supporting pillars shall not be less than 90%.
4. The prop shall be continuously used underground for more than 8 months to carry out well lifting and maintenance; Once the single hydraulic prop is damaged or temporarily unused underground, it should be transported to the well in time for maintenance and repair, so as to improve the use turnover rate and reduce the production cost.
5, where transported to the well of the prop must root cleaning, maintenance and removal of coal dust, the corrosion with pitting live column, galvanized phosphating: three valves after long-term use, the aging of the sealing ring, leakage is serious, to be removed and replaced the sealing ring.
6. Conduct high and low pressure and voltage stabilizing tests on the repaired stanchion. It can only be put into use after passing the tests.
7. In order to ensure the normal production of the working face, there must be more than 10% of the total number of in-face support pillars in the vicinity of the working face, which should be placed in a safe, dry and clean place. The mining height of the working face should change a lot, so the support reserve and support specification should be increased accordingly.
8. Idle props to be repaired shall not be stored in the open air. They shall be stored in the inspection vehicle or warehouse with dry air and room temperature of 0cI= or above.
9. When the single hydraulic prop is scrapped, please follow the maintenance rules of the single hydraulic prop.
