This dataset describes the extraction of raw coal. Coal mining methods in China can be divided into two major categories: Open-pit mining and underground mining. The specific choice depends on geological conditions, seam thickness, burial depth, and other factors. Open-pit mining includes drilling, blasting, extraction, crushing, transportation, waste disposal, pollutant treatment, and ecological restoration. Underground mining includes tunneling, coal extraction, mechanical equipment, transportation within the mine and plant, ventilation, pollutant treatment, and ecological restoration and management.

Liaoning Province has a complete range of coal varieties with good coal quality, including lignite, long flame coal, gas coal, fat coal, coking coal, lean coal, poor coal, anthracite, and weakly caking coal, mainly long flame coal, accounting for 41% of the total. 6%, followed by gas coal and lignite.<br>Long-flame coal is mainly distributed in the Fuxin coalfield, Tieta coalfield, Kangping coalfield, Nanpiao coalfield, the southwestern part of Beipiao coalfield, and Badao coalfield.<br>Fat coal, coking coal, and lean coal are mainly distributed in the northern part of Hongyang coalfield, Benxi coalfield, northeastern part of Beipiao coalfield, as well as the Fushun Majiazi mining area and Fengcheng Saiba mining area.<br> anthracite and gas coal are mainly distributed in the Fushun coalfield, southwestern part of Tieta coalfield, and southwestern part of Beipiao coalfield.<br>Anthracite is mainly distributed in the southern part of Hongyang coalfield, eastern part of Benxi coalfield, and Yantai coalfield.<br>Weak coking coal mainly distributes in the Nanpiao coalfield.<br>Lignite mainly distributes in the Shenbei coalfield.<br>Ash content 4. 8~38%, volatile matter 20~48%, carbon content 77.82~83.63%, total sulfur 0.27~1.99%, Qnet,ar net calorific value on an as-received basis 3000~7843 kcal/kg.