Cylinder part of iron phosphate rotary kiln

The utility model discloses a barrel part of an iron phosphate rotary kiln, belongs to the technical field of iron phosphate rotary kilns, and solves the technical problem of weld joint cracking of the barrel part of the rotary kiln under high-temperature operation. The device comprises an outer cylinder body and an inner cylinder body arranged in the outer cylinder body, a heat preservation layer is arranged between the outer cylinder body and the inner cylinder body, and the inner wall of the outer cylinder body extends from the feeding end to the discharging end of the outer cylinder body and is fixedly connected with a plurality of sets of studs at equal intervals. The inner cylinder body is connected inside the outer cylinder body through the studs, a gap is reserved between adjacent cylinder sections of the inner cylinder body, a sleeve is fixedly arranged on the inner wall of the inner cylinder body and located at the gap, the sleeve is composed of two semicircular cylinders, a lining plate is fixedly