Anti mining pressure buffering air door anti extrusion

Some coal mining enterprises have underground tunnels and ground deformations, which pose a severe challenge for the installation of remote intelligent fully automatic balanced non pressure air doors or mining fire doors, positive and negative mining air doors and other ventilation equipment. How can we ensure that the produced coal mine air doors are not affected by mining pressure and can be used normally? The anti mining pressure buffer damper (anti extrusion telescopic buffer damper) is designed by Jinan Dongshan manufacturer to cope with this special situation.

There are generally three common structures for anti mining pressure buffering air doors in coal mines. 1. The edge of the door leaf of the mining air door is attached with wooden strips. After the door frame is deformed, the width of the wooden strips can be reduced according to the actual situation to adapt to the deformed roadway.

2. Coal mineAnti mining pressure buffering air door anti extrusionOne of the principles is to add a set of large door frames with an inner diameter greater than the outer diameter of the inner door frame outside the normal mining fireproof door or balanced pressure regulating air door frame. The two sets of door frames are connected by springs or hydraulic shock absorbers. When the outer door frame is deformed due to deformation of the tunnel, the buffering device will expand and contract to ensure that the inner door frame is not affected.

3. Hang the anti mining pressure buffering air damper as a whole on the surface of the wall, and connect it with the embedded door frame of the mining air damper using a movable slide. There are also various structural forms of mining pressure buffering dampers, and we need to further improve their scientificity in the production of various mining pressure buffering dampers, so that the compression resistant telescopic buffering dampers can better adapt to unstable environmental conditions.