The 9.0 MT/a dry coal preparation plant of NewShanghai No. 1 coal mine of Shanghaimiao mining company was put into operation in November 2019, and the raw coal is lignite. The completion of dry coal preparation plant has completely solved the problem of separation of -30mm fine coal. After separation, the calorific value of commercial coal is increased by 500kcal/kg, the sulfur content is reduced from 2.1% to less than 1%, and the desulfurization rate is 50%. The project is the largest wellhead dry coal preparation project in the world, and it is also a model of Shenzhou Group's investment, construction and contracted operation project.