2, the correct choice of coal mining sequence layer.
3. Strengthen the management of the roof, increase the recovery rate, speed up the recovery, and minimize the loss of coal in the goaf.
4. Do not arbitrarily extract the required coal pillars that must be retained.
5. Choose a reasonable ventilation method and set up the facilities to control the wind flow correctly.
6. Master the signs of spontaneous combustion and predict the fire in a timely manner. Eliminate spontaneous combustion and ignite in the "germination" stage.
7. All kinds of fire hazards left over from the mining production process should be dealt with in a timely manner to reduce the occurrence of spontaneous combustion.
8. Strengthen the “three-way†maintenance, strengthen the treatment of waste roadways, fill the coal roadway in time, and deal with high temperature points in time.
3 Bolt Hole Self-aligning Mounting Flanges
3 Bolt Hole Self-aligning Mounting Flanges,Stamped Steel Mounting Flanges
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