Rotary kiln based on multi -layer insulating structure

The utility model discloses a rotary kiln based on multi -layer insulating structure, it is including rotary kiln, the inside resistant firebrick who follows its inner wall and set up that is provided with of rotary kiln, among the rotary kiln based on multi -layer insulating structure, be provided with the insulating layer between rotary kiln's inner wall and the resistant firebrick, the insulating layer is including thermal -insulated steel sheet and heat insulating coat, rotary kiln is inside to be provided with a plurality of fender brick layers, and it is evenly distributed in rotary kiln's axial, and each axis that keeps off the brick equal perpendicular to rotary kiln in layer circularizes the extension, adopt above -mentioned technical scheme's rotary kiln based on multi -layer insulating structure, it can loop through the setting that is able to bear or endure firebrick, heat insulating coat and thermal -insulated steel sheet for the rotary kiln in the course of the work, but its inside temperature e