Cement rotary kiln shell thickness on many factors : If for lining bricks thick , high fill rate of materials or capacity to make a  
significant load increase . Interface stiffness and strength of the cylinder barrel mainly by a certain thickness to be  
guaranteed. Foreign members of the thickness of the cylinder has been widely compared with the previous increase . Thick  
cylinder, the long-term safe operation of the cement kiln is always beneficial. However , the weight of the rotary kiln cylinder  
45 to 55% of the total consumption of steel . Therefore, the thickness is selected to be careful , in addition to thickening , but  
also through other ways to enhance the stiffness of the barrel . ( 1 ) reinforcement ring . Reinforcement ring tightening the  
cylinder , the cylinder due to large deformation near the rolling ring , focusing on cross near the deformation is small, and  
therefore in the vicinity of the rolling ring reinforcement ring is set up role . ( 2 ) reduce the gap between rings and cylinder  
roller pad . Sectional barrel rolling ring at maximum force , pin crusher the maximum radial deformation , if the increased stiffness of the  
rolling circle and make its strengthening effect on the cylinder is obviously beneficial. ( 3 ) Cross- fired cylindrical thickened.  
This section cylinder surface temperature can reach 300 to 350 degrees , just the strength and stiffness decreased. As the  
cement kiln lining life mainly refers to the life of the firing zone lining brick , so in addition to the other so that each firing  
across the span of rain , there should be increased across the inter- tube thickness than the other 2 ~ 6mm.