The bonding ball in rotary kiln is one major flaw in the operation of rotary kiln, because it will seriously affect the normal production of rotary kiln if failed to process in a timely manner. For kilns with a diameter less than 3M, the biggest ball may block the kiln, so the kiln can only stop running if it could not be ventilated. Specific measures for preventing the ball bonding in rotary kiln are as followings.
1) To stabilize the raw coal content and chemical composition
Maintain a strict standard since purchasing raw coal, so that unqualified raw coal won’t be used in the production process; partition to pile up coal in the coal yard, prevent the blending occurrence of different kinds of coal, so as to ensure the quality of pulverized coal in kiln.
2) To reduce the fluctuation of raw material chemical composition
Maintain a strict standard since purchasing raw material, so the unqualified raw material won’t be used in the production process; partition to pile up raw materials. Enhance the effect of heaping and taking the material, reduce segregation of materials and improve the pre-homogenization effect of raw materials. At the same time, cement kiln dust can’t be put in homogenization, instead of mixing in the grinded cement.