Rotary Kiln complex contact friction sealing device is a patented technology can solve leakage.If you use bad seals, sealing effect on the poor.It will cause serious leak into the cold.That is a serious cause the system to three consumption of heat consumption, coal consumption, electricity consumption. The device is a flexible structure mainly composed of carbon alumina composite friction, plate, springs, wire rope, fender flange combined into a two-sided flange trough-shaped, carbon-alumina composite friction block at the lowest end of the friction sleeve diameter closed from top to bottom two-plate and the pressure plate springs combined into elastic carbon alumina composite friction block.There rope wrapped around the outermost plate plus counterweight to tighten the gap to make a seamless contact seals. Said counterweight seals rubbing method, the amount of wear with high requirements.The maximum point is 1.8mm.