Fixed bed device for continuously producing carbon nanotubes

The utility model provides a fixed bed device for continuously producing carbon nanotubes, which comprises a reaction chamber, the main body of the reaction chamber is cylindrical and hollow, the upper end of the reaction chamber is provided with a feeding device and a feeding control motor, the feeding control motor controls the feeding device to convey a catalyst into the reaction chamber, and the reaction chamber is provided with a fixed bed. The inner wall of the reaction chamber is provided with heating pipes arranged in an array and a thermal insulation layer covering the heating pipes, the reaction chamber is internally provided with a conical porous plate, the side surface of the reaction chamber is provided with a discharge pipe communicated with the reaction chamber, the discharge pipe is internally provided with a spiral drill bit, and the spiral drill bit is located on the upper surface of the porous plate in the reaction chamber. An air inlet is formed in the lower end of the reaction chamber. Th