一、前言武钢是一个粉尘污染较严重的企业,为了消除粉尘污染,保护工人身体健康,安装了许多除尘设备,其中数量最大的是布袋除尘器,粗略统计有近百台,以耐火厂为最多。这些除尘设备均属六十年代的技术水平,代表其技术水平的关键装置之一——反吹清灰,是采用过时的定时程序控制,它不能随除尘系统运行参数的变化自行改变反吹周期。不论入口粉尘浓度的高低,布袋阻力 I. Introduction WISCO is a serious dust pollution enterprise. In order to eliminate dust pollution and protect the health of workers, many dust removal equipment are installed. Among them, the largest number is the bag filter. Roughly statistics have nearly one hundred units and the refractory plants are the most . These dust removal equipment are the technological level of the sixties, representing one of the key devices of its technical level - blow-back cleaning, is the use of outdated timing program control, it can not change with the dust removal system operating parameters to change the blowback cycle . Regardless of the level of inlet dust concentration, the bag resistance