With the development of socio-economic development, mining production is also continuously progressing. Therefore, the existence of acrow prop does provide support and assistance for mining production. Regarding the specific installation conditions of acrow props, China coal Group carried out for you to sum up.
The acrow prop is suitable for horizontal or gently inclined coal seams with an inclination angle of less than 250 (when reliable safety measures are adopted, it can also be used in coal seams of 25 ° to 35 °), and the floor should not be too soft, and the periodic pressure on the roof is obvious. If the surrounding rock condition is easy to fall under the direct roof, corresponding measures should be taken when using a single column in the working face with too soft floor, complicated geological conditions or layered.
Acrow Prop Installation
Acrow props are not allowed to be used under the following conditions:
(1) Excessive working surface.
(2) Work surfaces using other performance pillars.
(3) Working face using wooden roof beam.
(4) Working surfaces with severe acid and alkaline spraying.
(5) Blasting working face is not applicable for the time being.
The above is the result of years of experience of China coal Group. I hope customers and friends can master it and provide support and help for the smooth selection of acrow prop and the improvement of mining installation requirements.
