一、前言对炉膛工作的可靠和经济地运行有重要意义的是燃烧器中风量和煤粉分配的均匀性。但在电厂中,往往由于管路系统配置不合理,辅机设备有缺陷、调节性能欠佳以及运行人员操作方式不当等都会引起燃烧器中煤粉和风量的分配不均匀。一次风管内积粉堵管也是常 I. INTRODUCTION The importance of reliable and economical operation of the furnace operation is the uniformity of the burner volume and pulverized coal distribution. However, in power plants, the distribution of the pulverized coal and the air volume in the burner is often caused by unreasonable piping system configuration, defective auxiliary equipment, poor regulation performance and improper operation of the operating personnel. A tube of dust accumulation tube is also often