A single hydraulic prop is also called a hydraulic acrow props, which is different from the hydraulic support in its structure. The safety of coal mines has always affected the hearts of miners and their families, and the issue of safe mining in mines has become the focus of increasing attention. In the event of automatic unloading of the steel acrow props, failure of the unloading valve, significant mechanical deformation of the pillar surface, and mechanical scratches affecting homework, the well must be upgraded in time for maintenance.
The steel acrow props is suitable for horizontal or gently inclined coal seams with an inclination angle of not more than 25°. After safety measures are adopted, it can also be used in coal seams between 25° and 35°. The bottom plate must not be too soft and the roof cyclic pressure is significant , Direct roof is prone to collapse of surrounding rock premises, and single-pillars are used in working faces where the floor is too soft, the geological conditions are complex or layered, and corresponding safety measures must be taken. It is matched with the metal hinged top beam and is used for supporting and protecting the general mining face. The working face columns and hinged top beams must be numbered for management, and the numbers must be matched to the row; the erection and management of sub-contracts must be adopted. This is the hub of roof governance.
Partial scratches and deformation of acrow prop equipment are common problems of single hydraulic prop, especially problems such as deformation and leakage of piston mouth and corrosion of underground hydraulic acrow props. Due to the difficulty of equipment disassembly, traditional methods are often difficult to site after the above problems occur. The solution is mainly to replace new spare parts, but the replacement cycle is long and the cost is high. The latest maintenance methods for acrow prop are mainly polymer composite materials, which have excellent adhesion and good pressure resistance. Not only can they meet the production and use requirements under the above working conditions, but the operation process is simple and easy. Influenced by heat, the thickness of the coating is not limited. At the same time, the coating itself has excellent oil and corrosion resistance and self-lubricating function, ensuring the wear resistance after repair, ensuring the normal production of the enterprise, and avoiding the damage of equipment components.
We should pay more attention to these matters in our daily production. This not only improves production efficiency, but also prolongs the service life of single hydraulic props. At the same time, it also provides a more favorable guarantee for the safe production of Fanbo miners. The acrow prop is a kind of mining support product. The use of the single hydraulic prop brings convenience to coal mining and also increases the personal safety of coal miners in the mine.
In the underground support, attention should be paid to the damage of the steel acrow props, and regular inspection and maintenance. Pillars of uniform type and specifications must be operated to have the same working function, and each acrow prop must reach its setting force when lifting the pillar. The use of a hydraulic acrow props cannot be mixed with props of different properties and specifications.
