Is Yayan Coal Mine in Zheng 'an County in production?

Yayan Coal Mine in Zheng 'an County is a producer.

coal mine

It is an area where human beings exploit coal resources in rich coal mining areas, which are generally divided into underground coal mines and open-pit coal mines. When the coal seam is far away from the surface, it is generally chosen to dig tunnels underground for coal mining, which is an underground coal mine. When the coal seam is close to the surface, it is generally chosen to directly peel off the topsoil to dig coal. This is an open-pit coal mine.

Most coal mines in China belong to underground coal mines. The scope of coal mine includes a large area of ground, underground and related facilities. Coal mine is a reasonable space excavated by human beings when mining geological strata rich in coal, which usually includes roadway, adit, mining face and so on. Coal is the most important solid fuel and a combustible organic rock.

It is formed by lush plants growing in a certain geological age, gradually accumulating into thick layers in a suitable geological environment, buried in the bottom of the water or sediments, and formed by natural coalification in a long geological age.

Among all geological periods in the world, Carboniferous, Permian, Jurassic and Tertiary strata produce the most coal, which is an important coal-forming era. The carbon content of coal is generally 46 ~ 97%, which is brownish black with dull to metallic luster. According to the degree of coalification, coal can be divided into four categories: peat, lignite, bituminous coal and anthracite.

Knowledge expansion:

Coal mine is a reasonable space excavated by human beings when mining geological strata rich in coal, which usually includes roadway, adit, mining face and so on. Coal is the most important solid fuel and a combustible organic rock.

When the coal seam is close to the surface, it is more economical to use open-pit mining. The soil above the coal seam is called topsoil. Bury explosives in undeveloped topsoil area, and then use excavators, excavators, trucks and other equipment to remove topsoil. The topsoil was filled into the previously mined mine. After the topsoil is removed, the coal seam will be exposed.

At this time, the coal is drilled or blasted, and the coal is transported to the coal preparation plant by truck for further treatment. Open-pit mining can obtain a larger proportion of coal mines than underground mining because more mining areas are used. Open-pit coal mining can cover several square kilometers. About 40% of the coal mines in the world adopt open-pit mining.