旋风分离器顶灰环灰量的实验测量  

Experimental Measurement on the Top Particle Ring in the Cyclone Separator

作　　者：何兴建[1] 礼晓宇[1] 宋健斐[1] 魏耀东[1] 

机构地区：[1]中国石油大学(北京)化工学院,北京102249

出　　处：《当代化工》2015年第5期1143-1146,共4页Contemporary Chemical Industry

基　　金：国家自然基金项目;项目号:21176250

摘　　要：旋风分离器进行气固分离过程中,在顶板的外侧存在一个浓度比较高的旋转顶灰环。顶灰环的存在一方面增加了颗粒向内测逃逸几率,另一方面造成了旋风分离器器壁的磨损。对于分离FCC催化剂颗粒的旋风分离器,顶灰环的旋转是不稳定的,会发生周期性的脱落,因此存在一个最大顶灰环灰量。根据旋风分离器颗粒藏量的测量方法,测量了最大顶灰环灰量与入口速度和入口浓度的关系。实验结果表明最大顶灰环灰量随入口速度和入口浓度的增加而增大。There exists a relatively high concentration rotating top particle ring in the annular space of cyclone during the gas-solid separation process. The top particle ring supplies the chance of particle escaping, furthermore causes the erosion of the cyclone wall. For separating FCC catalyst particles, the top particle ring rotation is unstable and the top particle ring falls off periodically. So there is a maximum mass of the top particle ring. In this paper, the relationship between the mass of top particle ring with the inlet velocity and inlet concentration was measured according to the cyclone separator reserve measurement. The experimental results show that mass of the top particle ring increases with increasing of the inlet velocity and inlet concentration.

关 键 词：旋风分离器 顶灰环 灰量 入口速度 入口浓度 

分 类 号：TQ051.8[化学工程]