The invention discloses a circulating
fixed bed. The circulating
fixed bed is used for circularly producing a carbon material and comprises a
temperature control body, at least one
temperature control section reactor and a controller, the reactor is at least partially located in the
temperature control body, and the temperature control body controls the temperature of each temperature control section reactor; the reactor comprises a rotating body and pipes AB, the pipes AB comprise a
pipe A and a
pipe B, and the
pipe A and the pipe B are arranged in a sleeving mode and move relatively; and the controller controls materials to enter the A pipe and the B pipe to react to generate a carbon material, the controller controls the rotating body to rotate to drive the A pipe to rotate relative to the B pipe so as to feed and
discharge the material, and the A pipe forms different angles relative to the B pipe in cycles so as to achieve cyclic production of the carbon material. The problems of
energy conservation,
environmental protection, high yield and homogenization in the prior art can be solved.