As a coal miner, how much do you know about coal mines?

As a coal mine who

How much do you know about the mine?

These words are often heard

What do they mean?

Let us appreciate the security comics

Let's learn together.

Mining face: The general term for coal mining face and heading face.

Thin coal seam: coal seam with a thickness of 1.3 m or less during underground mining; coal seam with a thickness of 3.5 m or less during open pit mining.

Medium-thick coal seam: a coal seam with a thickness of 1.3-3.5 m during underground mining; a coal seam with a thickness of 3.5-10 m during open-pit mining.

Thick coal seam: coal seam with a thickness of 3.5m or more during underground mining; coal seam with a thickness of 10m or more during open pit mining.

Wells: All the open space that is excavated in coal seams or rock formations for mining work.

Level: The horizontal plane of the transport alley or the total return airway is arranged along the coal seam to a certain elevation.

Transportation lanes (stages, horizontal roads or main roadways): Horizontal roadways that serve the entire mining level or stage of transportation. It is called a rock transport alley in the rock formation; it is called a concentrated transport alley for several coal seams.

Shimen: A horizontal roadway with rocks that are orthogonal or oblique.

Uphill: An inclined roadway that serves as a mining area in the upper part of the transportation lane and excavated along the coal rock formation. According to the use and equipment, it is divided into: conveyor uphill, track uphill, ventilation uphill and pedestrian uphill.

Downhill: A sloped roadway that serves as a mining area in the transportation lane down and along the coal seam. According to the use and equipment, it is divided into: conveyor down the mountain, orbiting down the mountain, ventilating down the mountain and walking down the mountain.

Impact ground pressure (rock burst): The rock mass around the roadway or working face, which is a dynamic phenomenon of sudden and severe damage due to the instantaneous release of elastic deformation energy. Often accompanied by coal rock mass throwing, loud noise and air waves.

Into the wind lane: the roadway through which the wind and wind flow. For the whole mine or mine, the wind is used to enter the wind alley. For the intake of one mining area, it is called the wind inlet lane of the mining area.

Return wind lane: the roadway through which the return air flows. It is called the total return airway for the return of the whole mine or mine wing; it is called the total return airway for the return of several mining areas; it is called the return windway for the return of the wind in one mining area; The working face is used to return to the wind.

Gas: A methane-based harmful gas mainly composed of coalbed methane in a mine. Sometimes referred to as methane alone.

Gas (carbon dioxide) concentration: The ratio of gas (carbon dioxide) in volume in air, expressed in %.

Roof fall: refers to the phenomenon that the upper ore rock layer naturally collapses during underground mining. It was caused by the destruction of the originally balanced mine pressure after mining. In the coal mining work, the upper coal seam is sometimes planned to be released, which is also called "topping".

Locomotive: The general term for overhead electric vehicles, steam locomotives, battery electric vehicles and diesel locomotives.

Motor vehicle: The general term for wired motor vehicles and battery electric vehicles.

Monorail crane: A transportation device consisting of a driven monorail or a tractor or tractor (for rope traction), a brake car, and a carrier.

Flame-retardant cable: When burning in case of fire, the burning speed is very slow, and the cable that is self-extinguishing after leaving the fire source.

Dust: A general term for coal dust, rock dust and other toxic and harmful dust.

Three major procedures: coal mine safety regulations; operating procedures; operating procedures.

Four do not let go: the cause of the accident is not clear and not let go; the person responsible for the accident has not been seriously dealt with; the staff and workers have not been educated and not let go; the preventive measures have not been implemented.

Three non-principles: unsafe, no production; hidden dangers do not eliminate non-production; safety measures are not implemented and not produced.

No harm: no harm to yourself; no harm to others; no harm to others.

One pass and three defenses: ventilation; prevention and control of gas, fire prevention, prevention and control of coal dust.

Three violations: illegal operations; illegal command; violation of labor discipline.

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