Meaning: With the national emphasis on environmental protection and the improvement of the requirements for coal-fired indicators of power plants, the power coal must be discharged and desulfurized for deep separation. However, steam coal has more strict requirements on product moisture, and the influence of moisture on calorific value and ash content on calorific value are very significant. Dry separation has become the most applicable technology for steam coal separation.
Effect: According to a large number of dry separation application practice of steam coal, dry separation can increase the calorific value by 500~2000kcal/kg, the desulfurization rate of high sulfur coal is 40~60%, and in some areas it can reach more than 80%. The specific upgrading range depends on the raw coal conditions.
