The single hydraulic prop is a new environment-friendly support equipment, which can be used with metal hinged roof beams for high-end general mining and artillery. Can be used alone as a prop or other temporary support. This article mainly introduces the reasons for the damage of the single hydraulic prop, the matters needing attention during maintenance, and the management related content in order to improve the service life of the single hydraulic prop and ensure the safe production of the coal mine. The reasons why the single hydraulic prop is easily damaged are as follows:
Single hydraulic props for mining
1. Overdue use, overdue use of single hydraulic props, due to long-term wear and tear of components, support performance is greatly reduced. The inability to organize well overhauls in a timely manner has accelerated the aging of the single hydraulic props and brought great safety risks to production.
2. Improper handling. In recent years, the newly installed coal mining working surfaces have been inspected, tested and pressured by the individual single hydraulic props. The large number of these props have repeatedly crashed during many loading and unloading transportation steps. Caused damage to the single hydraulic prop.
3. Improper use. Improper use of the coal mining face on site is also the main cause of damage to the single hydraulic prop. Hard hit with a hammer, causing human damage. In addition, the use of ultra-high single hydraulic prop can also easily lead to the cylinder being out of cylinder. In the artillery mining face, too many drugs were fired and no protective measures were taken, and the prop collapse occurred from time to time. There is no special moving equipment. Almost all the single hydraulic props are used to lift the conveyor. The lateral force of the props is too large and the mechanical damage is serious.
4. Poor quality of emulsified oil. The emulsified liquid with appropriate concentration is used as the working medium of the single hydraulic prop, which has the functions of lubrication, anticorrosion and rust prevention, and can protect the single hydraulic prop and prolong its service life. However, in use, the operator often reduces the concentration of the emulsion without authorization. Due to the low concentration of the emulsion, the single hydraulic prop is easily corroded and damaged, which shortens the service life. At the same time, in recent years, some fake and inferior emulsified oils have been used in mines. When used, the degree of emulsification is poor, and it is easy to block the three-way valve orifices and affect the use of props.
