水泥窑旁路放风系统及其工艺设计

Cement Kiln Bypass System and its Technological Design

介绍了不同粉尘捕集方式下,水泥窑窑尾旁路放风系统各工艺流程的优缺点,以及进行旁路放风系统设计时的放风量选择及其具体设计要求。当放风比例<25%时,取风点宜设置在回转窑一侧中心位置;进入骤冷室之前的管道一般需设置230mm厚的浇注料,进风口风速一般按20m/s设计,出风口风速一般按18m/s设计,骤冷室至收尘器进风口的烟气管道长度须≥20m。

This paper introduces the advantages and disadvantages of each technological process of the bypass system at the kiln inlet chamber of cement kiln under different dust capture methods,as well as the selection of venting volume and its specific design requirements when designing the bypass system.When the bypass ratio is less than 25%,the flue gas intake point should be set at the center on the side of the rotary kiln;the pipeline before entering the quenching chamber generally needs to be set with castable in a thickness of 230mm;the gas speed at the inlet is generally designed at 20m/s,and the gas speed at the air outlet is generally set at 18m/s.The length of the flue gas pipeline from the quenching chamber to the air inlet of the dust collector would be more than 20m.