Large-scale rotary kiln automatic control sealing device of high temperature

The utility model provides a large-scale rotary kiln automatic control sealing device of high temperature, be by: gyration kiln, floating seal ring, baffle, sealing material ring, rotary seal ring, expansion joint, cylinder, the fixed cover body constitute, gyration kiln periphery sets up the rotary seal ring, and the both sides of rotary seal ring set up the sealing material ring, and the periphery of rotary seal ring and sealing material ring sets up the floating seal ring, sets up the expansion joint between the fixed cover body of gyration kiln one side and the floating seal ring, sets up two at least cylinders between the fixed cover body of periphery of expansion joint and the floating seal ring, can satisfy major diameter kiln barrel and produce at the temperature variation under expend with heat and contract with cold's the circumstances, during the flexible deformation of the barrel of gyration kiln, control the floating seal ringing through the cylinder and move, the sealing material who makes floating seal ring and rotary seal encircle both sides encircles and compresses tightly, simple structure, and simple to operate, low in production cost, sealed effect ideal, long-term use is not fragile, and the fault rate is hanged down, easy maintenance.