Dianshigou coal mine is located in Dalat banner, Ordos City, with a design capacity of 2.4mt/a. At present, it mainly mines 5#, 6# two coal seams and is mainly sold to power plants. As the sulfur content of raw coal is more than 1.8%, it can not meet the requirements of power plant, so it is necessary to reduce sulfur and improve quality. In December 2018, Dianshigou coal mine invested in the construction of a 2.0mt/a dry coal preparation production line for separation and quality improvement, and the sulfur content can be reduced to less than 0.8%.