China's top ten benchmark coal mines
China is the world's largest coal producer and a big coal consumer. In 1996, China's proven recoverable coal reserves ranked third in the world, and the industry's annual coal mining volume reached nearly 1 billion tons.
1. Harsu Open-pit Coal Mine
Geographical location: In the east of Zhungeer Banner (Xuejiawan Town), Ordos City, Inner Mongolia Autonomous Region, it belongs to the border area of Shanxi, Shaanxi and Mongolia. Production time: 2008, Recoverable reserves: 1.73 billion tons, Approved production capacity: 35 million tons/year, Coal types: long flame coal with medium ash, low sulfur, extra low phosphorus, high volatile content, medium and high calorific value, and high ash melting point. Pioneering Ways: Open-Air Peeling.
2. Bulianta Coal Mine
Geographical Location: Inner Mongolia Autonomous Region, Ordos City, Ulan Mulun Town, Yijinhuoluo Banner. Production time: 1997, Recoverable reserves: 1.43 billion tons, Approved production capacity: 28 million tons/year, Coal types: long flame coal and non-stick coal, which are high-quality thermal, chemical and metallurgical coals of ultra-low ash-low ash, ultra-low sulfur-low sulfur, ultra-low phosphorus-low phosphorus, and medium and high calorific value. Development method: flat tunnel, inclined well.
3. East Opencast Coal Mine
Location: Han Village, Yuling Township, Pinglu District, Shuozhou City, Shanxi Province. Production time: 2016, Recoverable reserves: 1.646 billion tons, Approved production capacity: 20 million tons/year, Pioneering way: Open air stripping, Mining process: The semi-continuous production process of "excavator - single bucket truck - mobile crushing station - belt conveyor" is adopted. The East Open-pit Coal Mine has thick coal seam, good coal quality, shallow coal seam burial, simple geological structure and low stripping ratio.
5. Tashan Coal Mine
Location: 30 kilometers south of Datong City, Shanxi Province. Production time: 2008, Recoverable reserves: 3 billion tons. Approved production capacity: 25 million tons/year (increase in 2019), Development method: Pingdong. Mining technology: adopting the long-wall retreat type one-time mining full-height comprehensive mechanized top coal caving, using shearers for coal falling and coal loading, continuous strong belt conveyors for coal transportation, and top coal caving hydraulic supports for support. The goaf adopts the full caving method.
6. Shanxi Changzhi Jingfang Coal Industry Co., Ltd.
Location: Shangdang District, Changzhi City, Shanxi Province. Production time: 1981. Recoverable reserves: 130 million tons. Approved production capacity: 3 million tons/year. Coal type: The coal type is lean and lean coal, producing large, medium and small lumps of charcoal and fine coal. Development method: inclined well development. Mining technology: adopting the long-wall retreat type one-time mining full-height comprehensive mechanized top coal caving, using shearers for coal falling and coal loading, large inclination continuous strong belt conveyors for coal transportation, and top coal caving hydraulic supports for support. The goaf adopts the full caving method.
7. Dongtan Coal Mine
Location: Zoucheng City, Jining City, Shandong Province. Production time: 1989. Recoverable reserves: 464 million tons. Approved production capacity: 7.5 million tons/year. Coal type: medium metamorphic gas coal, with the characteristics of low sulfur and low ash. Development method: a pair of vertical wells and two levels. Mining technology: The fully mechanized top coal caving mining technology is used to mine thick and large coal seams. The raw coal is transported from the mining area to the bottom coal bunker by a strong belt, and the two pairs of skips are alternately transported by the hoist.
8. Zhaogu No. 2 Mine
Location: Huixian City, Xinxiang City, Henan Province. Production time: 2011. Recoverable reserves: 140 million tons. Approved production capacity: 1.8 million tons/year. Coal type: Anthracite, with the advantages of medium ash, low sulfur, high calorific value, high ash melting point and high lump coal yield. Mining process: Coal falling and coal loading use the shearer to mine the full height at one time, and the coal is transported to the bottom coal bunker by a continuous strong belt conveyor, and then the skips are alternately transported to the well by the hoist.
9. Caojiatan Mining Co., Ltd.
Location: Yuyang District, Yulin City, Shaanxi Province. Production time: 2018. Recoverable reserves: 100 million tons. Approved production capacity: 15 million tons/year. Coal types: power, chemical and metallurgical coal.
10. Huangling Mining Co., Ltd.
Location: Yan'an City, Shaanxi Province. Production time: 1989. Approved production capacity: 15.5 million tons/year (1# coal mine + 2# coal mine). Coal types: power, chemical and metallurgical coal. Comments: Six major industrial models, coal mining + washing and processing + coke + coal chemical industry + power generation + building materials.
4. Xiaojihan Coal Mine
Location: Located in Yuyang District, Yulin City. Production time: 2013, Recoverable reserves: 1.8 billion tons, Approved production capacity: 10 million tons/year, Development method: inclined well. Mining technology: Coal falling and coal loading use shearer to mine full height at one time, continuous strong belt conveyor supplemented by trackless rubber wheel truck for coal transportation, hydraulic support for support, and full caving method for goaf.