Uniform powder coating device for mineral filling material of fireproof cable

The utility model discloses a uniform powder coating device for a mineral substance filling material of a fireproof cable, relates to the technical field of powder coating of the mineral substance filling material of the fireproof cable, and aims to solve the problems of non-uniform powder coating and poor adhesion firmness caused by the fact that the cable directly penetrates through the interior of a stock bin in the conventional powder coating mode. The mixing cylinder is sleeved with a communicating pipe, a plurality of air outlet pipes are fixedly connected to the inner side wall of the communicating pipe, the air outlet ends of the air outlet pipes are arranged at the lower end of the interior of the mixing cylinder, the air outlet direction of the air outlet pipes is inclined to the central axis of the mixing cylinder, and a spiral conveyor is fixedly connected to the lower end face of the mixing cylinder; the discharging end of the spiral conveyor is fixedly connected with a feeding pipe, the feeding