Multi-section type combined rotary drum

The invention discloses a multi-section type combined rotary drum, and belongs to the technical field of high-temperature viscous particle material drying. A rotary drum body is composed of an inlet section drum, a middle section drum and an outlet section drum, the problem that an existing integral drum is inconvenient to transport due to the fact that the transport time is too long is solved, the rotary drum body is divided to be in a multi-stage combined mode, and therefore the effect of facilitating maintenance in the later period is achieved; and if the requirement for the number of driedmaterials is improved, the length of the middle section drum needs to be lengthened, and the effect of increasing the material quantity for drying is achieved by additionally arranging a middle section drum of the same structure; and the materials easily form blocks or balls during rotary conveying, tooth-shaped protruding block strips effectively scatter the blocks or balls, scattered small-particle materials are easy t