Torek is located in Torun, Poland. Due to the increasingly strict national requirements for environmental protection, the cost of water separation of coal is becoming higher and higher. Therefore, the company has been looking for alternative new technologies in the field of coal preparation. At the beginning of 2018, after extensive international research, the company purchased a set of ZM35 dry coal separation equipment for separating power coal. After separation, the calorific value of cleaned coal reached 6238kcal / kg, which was more than 1100kcal / kg higher than that of raw coal. Its investment and operation cost were less than 1 / 2 of that of water washing process.