Diameter standards for wind and water pipes in non-coal mines

It is a unified standard.

For this type of pipeline requirements, our country has a set of strict and unified standards, which also need to depend on the situation.

Non-coal mines refer to mines and tailings ponds that mine metallic ores, radioactive ores and use them as petrochemical raw materials, building materials, auxiliary raw materials, refractory materials and other non-metallic minerals (except coal). Although there is no danger of gas explosion in non-coal mines, they are not fundamentally different from coal mines in other aspects. Due to the diverse conditions of ore bodies, the mining methods in non-coal mines mainly include open pit, filling and caving.