What is a non-coal mine

Non-coal mines refer to mines and tailings ponds that mine metal ores and radioactive ores, as well as petrochemical raw materials, building materials, auxiliary raw materials, refractories and other non-metallic minerals (except coal).

Although there is no danger of gas explosion in non-coal mines, there is no essential difference from coal mines in other aspects. Due to the diversity of ore body conditions, the mining methods of non-coal mines mainly include open stope method, filling method and caving method. Non-coal mines are all levels of safety production supervision and administration (? Safety supervision bureau is one of the areas under direct control.

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Non-coal mines-harmful factors

Lifting injury refers to squeezing and falling (spreader, lifting load) in various lifting operations (including crane installation, maintenance and testing)? Object collision accidents and electric shock. In the production process of non-coal mines, there are a large number of lifting equipment in mineral processing workshops and machine maintenance workshops, and the probability of lifting injury is relatively high. The main risk factors are broken traction chain or sliding parts, collision, emergency stop, etc. The accidents caused by this include equipment destruction, casualties and production impact.

The common causes of lifting injuries are: overload; The traction chain or product does not meet the specified quality requirements; Operating lifting equipment without a license or operating personnel violating regulations; Switch failure, unable to cut off the power supply in time, resulting in out-of-control operation; The operator can't stop in time due to inattention or visual impairment; The volume of the transported object is too large; Sudden power failure; Lifting equipment failure, etc. In the production process, there are still dangerous and harmful factors such as pressure vessel explosion, high temperature, corrosion, lightning strike, earthquake and poor lighting.

Baidu encyclopedia-non-coal mine