Reaction device and reaction process for graphite negative electrode material of battery

The reaction device comprises a rotary reactor which is sequentially provided with a coating granulation section and a carbonization section, and a plurality of heating furnaces which are used for providing heat for the coating granulation section and are distributed at intervals are arranged on the outer wall of a cylinder on one side, close to the feeding end, of the rotary reactor. The plurality of heating furnaces are a first heating furnace, a second heating furnace and a third heating furnace in sequence along the material flow direction, and the internal temperatures T1, T2 and T3 and the residence time t1, t2 and t3 of the rotary reactor sections corresponding to the first heating furnace, the second heating furnace and the third heating furnace are controlled. The invention also provides a continuous coating granulation-carbonization reaction device and process of the battery graphite negative electrode material. According to the invention, by controlling the temperature parameter during coating gran