As is known to all, suspension hydraulic prop is used as support equipment in coal mine, which is a dangerous place underground. Suspension hydraulic prop is a kind of external injection hydraulic prop, in the injection of liquid, three valves do not rise with the pillar of the living column, easy to operate, safe and reliable. Large working trip, expanding the scope of use, especially the roof sinking larger working face. In the process of operation also need to be careful operation, but the use of instability in the process of what is the reason, let's take a look.
Suspension single hydraulic prop production, with large dip Angle of coal seam working face, because of the dip Angle of coal seam is greater than 35 °, bracket easily slide, dumping, at the same time, caving coal (coal gangue) to the decline in roll, downward impact on the tail end of the bracket, the bracket pendulum, coupled with large dip Angle of coal seam in addition to the caving roof breakage, backplane can appear damaged sliding, thus cause the unstability of the working face support system.
Suspension single hydraulic prop, therefore, only by single machine (frame) of fall prevention, skid resistance, not to solve this problem well, also must be more than the adjacent vice stent combined into a group of fall prevention, prevent slippery, each deputy stents with another antiskid team of scraper conveyor with tail bracket and the end of scraper conveyor and a non-slip group, make the non-slip group form a anti-skid system, when a single machine (frame) fell (fall), prevent slippery group, when antiskid group fell, the brakes to stop.
The above content will let you know the reason for the instability in the use of the suspension single hydraulic prop, so as to avoid the discomposure in the case of similar situations. If you are interested in this article written by professionals of China coal group, you can call our hotline to contact us.
