In order to keep related technologies in sync with the world, our company has maintained good cooperation and exchanges with many European and Asian companies and research institutions. At present, many technologies have been pioneered in China and have reached the international frontier, and have obtained more than ten national invention patents. He has more than 20 utility model patents, and participated in related projects of the National High-Tech Research and Development Plan (863 Plan). In the field of coal slime drying, the rotary wing drying technology is the only technology designated in the "Technical Catalogue of Products Recommended by the Ministry of Commerce".