NOVELTY - Environmental-protection energy-saving drum biomass coal preparation comprises generating associated gas in biomass coal preparation process; forming high-temperature smoke; forming low-temperature smoke; exhausting low-temperature smoke by drum drying device; after the system starts, providing the heat energy needed by the biomass coal preparation by burning the associated gas; directly pressing the biomass into the coal at high temperature by dry distillation device; and completely automatically controlling the biomass coal preparation process.    USE - Environmental-protection energy-saving drum biomass coal preparation (claimed).    ADVANTAGE - The method achieves high energy utilization and transformation rate; does not need external energy supply in biomass dry distillation process; has energy saving and environmental protection, good biomass coal quality, high heat value, no harmful gas exhaust, no overburning, and no half baking; and is completely automatically controlled.    DETAILED DESCRIPTION - Environmental-protection energy-saving drum biomass coal preparation comprises delivery of biomass, drying, dry distillation, and high-temperature pressing into coal, where drying and dry distillation of biomass are carried out in environmental-protection energy-saving drum biomass coal preparation device. It further comprises:    (A) burning air and liquefied gas in a combustion room; heating the drum dry distillation device by high temperature smoke; generating associated gas in the biomass coal preparation process; forming high-temperature smoke by burning and heat release; dry distilling the biomass by high temperature smoke; introducing to combustion room for associated gas generated in the dry distillation process for oxidizing and heat release; providing the energy for the drying and dry distillation of the whole system; after the system normally operates, cutting off the liquefied gas source; and operating the system by the self energy;    (B) forming low-temperature smoke by heat exchange of high-temperature smoke; and exhausting the low-temperature smoke by the drum drying device;    (C) after the biomass is dry distilled, directly pressing the biomass into the coal at high temperature by dry distillation device; and    (D) completely automatically controlling the biomass coal preparation process.    An INDEPENDENT CLAIM is included for environmental-protection energy-saving drum biomass coal preparation device comprising a material delivery system, a material drying system, an associated gas burning afterheat recovery system, a material dry distillation system, and an automatic control system. The material delivery system comprises loading device and drum drying device, sealing storehouse, dry distillation loading device, drum dry distillation device, and briquette shaping machine connected with the loading device. It comprises combustion room connected with the drum drying device. The associated gas burning afterheat recovery system comprises a combustion room and electromagnetic valve and hand-operated valve connected with the combustion room. The drum dry distillation device and combustion room are connected with the material dry distillation system. The automatic control system comprises temperature sensor installed in the drum drying device, drum dry distillation device, combustion room, and the smoke pipeline; an oxygen concentration sensor installed in the drum dry distillation device; an electric control valve; a temperature sensor connected with the combustion room; and an automatic operation control display device connected with the oxygen concentration sensor and the electric control valve. The material delivery system, material drying system, associated gas burning afterheat recovery system, and material dry distillation device are mutually connected by the pipeline. The automatic control system is electrically connected with the temperature sensor installed in the system, oxygen concentration sensor, and the electric control valve.