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"Coal Mine Safety Regulations"-Relevant Provisions on Gas Concentration in Coal Mining Face
Release time:
2022-12-09
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"Coal Mine Safety Regulations"-Relevant Provisions on Gas Concentration in Coal Mining Face
"Coal Mine Safety Regulations" stipulates that the air flow in the return air lane of the mining area and the return air lane of the mining face, gasWhen the concentration exceeds 1% or the carbon dioxide concentration exceeds 1.5, the work must be stopped, the personnel must be evacuated, andMine chief engineer is responsible for taking measures to deal.
When the gas concentration in the airflow of the mining face reaches 1.5%,Must stop working, evacuate personnel, cut off power for processing.
The volume in the mining face is greater than 0.5m.3 The space, local accumulation of gas concentration reached 2%, within 20m nearby, must stop working, evacuate peopleStaff, cut off the power supply for processing.
Electrical equipment that cuts off the power supply due to the gas concentration exceeding the regulations must be reduced to 1%The machine can only be powered on if the following is the case.
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