Now with the application of single hydraulic prop, people love it more and more. Let's start with what's the favorite single hydraulic prop?
Single hydraulic prop is composed of cylinder block, movable column, valve and other parts. The three-use valve is the heart of the external injection type single hydraulic prop, which is composed of one-way valve, unloading valve and relief valve king part. One-way valve for single hydraulic prop for liquid, unloading valve for single hydraulic prop for unloading back column, safety valve to ensure that the single hydraulic prop with constant resistance characteristics. Above you know the introduction of the single hydraulic prop, but it is easy to be damaged before, during and after use. So let's analyze what causes the vulnerability.
1. Overdue use
The support performance of single hydraulic prop is greatly reduced due to the long-term wear of components. Because of the failure to timely organize the uphole maintenance, accelerated the aging of the prop, to the production of great safety hidden trouble.
2. Improper handling operation
In the newly installed coal face in recent years, the single hydraulic prop of man well has been inspected and tested, and is qualified. However, a large number of these props, in many transportation links of loading and unloading, have been repeatedly knocked down, causing damage to the single hydraulic prop.
3. Improper use
Improper use of coal face is also the main reason for the damage of single hydraulic prop. With hammer and other hard hit, causing man-made damage. In addition, the use of super high support, also easy to cause live cylinder out of the cylinder. In the working face of the gun, there is too much ammunition, no protective measures are taken, and the phenomenon of prop collapse occurs from time to time. There is no special sliding equipment, almost all the single hydraulic prop upward conveyor, prop waist lateral force is too large, mechanical damage is very serious.
4. Poor quality of emulsified oil
The emulsion with proper concentration is prepared as the working medium of the single hydraulic prop, which has the functions of lubrication, corrosion prevention and rust prevention, and can effectively protect the single hydraulic prop and prolong its service life. However, in use, operators often reduce the concentration of emulsion without authorization, because of the low concentration of emulsion, the pillar is easy to corrosion and damage, shorten the service life. At the same time, in recent years, some fake and inferior emulsified oil into the use of the mine, in use, emulsification degree is poor, easy to block the three-use valve channel, affecting the use of the prop.
