1. Kiln shell is the trunk of rotary kiln, rolling and welding by quality thick steel plate, the plate thickness depends on the different stress of different position, rotate supporting roller adopt ZG35CrMo or 42CrMo steel.
2. Girth gear connect with kiln shell by spring board, and hanging on the kiln shell, the structure makes girth gear and kiln shell have enough heat dissipation space, and also reduce the kiln shell heat deformation and impact on the accuracy of gear engagement, besides it could have the effect of shock absorption, is helpful to prolong the working life of the rotary kiln.
3. The sealing device structure adopts labyrinth type and contact type, contact type including scale type, graphite block type, cylinder slip ring type and so on. The sealing effectively prevent the loss of heat, reduce the heat consumption, and improve the utilization of fuel.