The single hydraulic prop is a new environmentally friendly supporting equipment. It has the advantages of small size, high support height, reliable support, convenient use and maintenance, and low comprehensive cost.
When hydraulic acrow props used in blasting coal mining face with soft coal, take protective measures on the coating surface of the living column to prevent collapsing. When the pillar is used with the technical roof beam or used as a spot column, the top cover should be replaced with a column Cap to avoid damaging the wooden beam.
Note on the return of hydraulic prop:
1. Before returning the hydraulic acrow props to the column, check the surrounding top plate and whether the bracket is intact. If there are broken beams, missing columns and other unsafe factors, you must deal with it before returning to the column.
2. The return of the single hydraulic prop requires two people to cooperate, one to return to the post, and one to observe the roof. When returning to the post, you must work in a safe place where the bracket is intact. You must clear the escape route, lay the protective post, and tell you to work around Other staff.
3. When the top plate comes to press and encounters other dangerous situations, it is necessary to stop returning to the column, and then withdraw after waiting for treatment. When agreeing to return to the column in sections, the working distance of the sections shall not be less than the regulations.
4. When the hydraulic prop pressure of the large-area suspended ceiling and the roof plate is too large, it is not allowed to manually return to the column, use a winch to return to the column at intervals, or use other safe methods to withdraw.
