回转反吹袋式除尘器清灰机理与清灰系统设计方法  

Mechanism and Design Method of a Dust Cleaning System:Rotary Blowback Bag Filter

作　　者：郝文阁[1] 石伟[2] 丁姝[1] 朱娜[1] 

机构地区：[1]东北大学资源与土木工程学院,辽宁沈阳110004 [2]沈阳东北大学冶金技术研究所有限公司,辽宁沈阳110004

出　　处：《东北大学学报（自然科学版）》2009年第10期1497-1500,共4页Journal of Northeastern University(Natural Science)

基　　金：国家高技术研究发展计划项目(2002AA642010)

摘　　要：通过深入认识回转反吹袋式除尘器的清灰机理,提出了反吹风袋式除尘器清灰系统的设计方法.对反吹气流形成的袋内流场进行了理论与实验研究,并在Φ100mm×6000mm的滤袋模型上进行了实验测试.提出了反吹风清灰系统中反吹风流量和压力的确定方法.研究结果表明,滤袋表面过滤形成的粉尘层对反吹风形成径向反吹气流阻力,即气流对粉尘层的剥离力与粉尘剥离率之间具有较好的相关性.A design method was proposed for the rotary blowback bag filter, based on the understanding of its dust cleaning mechanism in depth. The flow field caused by blowback airflow in the bag was investigated theoretically and experimentally, with a test done on the Φ100mm×6000mm model of bag filter and a method presented to determine the flowrate and pressure of blowback airflow. The results showed that the filtered dust cake on the bag filter surface will form a resistance to the radial blowback airflow, i. e. , there is a proper correlation between the force resulting from airflow to peel off the dust cake and dust peel-off rate.

关 键 词：回转反吹袋式除尘器 清灰机理 反吹风流场 清灰系统 设计方法 

分 类 号：X513[环境科学与工程—环境工程]