我厂在运行中的3台链条炉,普遍存在着火差、燃烧效率低、出力不稳定及需经常捅火等问题,锅炉效率仅60%左右,发电煤耗高达800～900克/度。为了提高燃烧率、减少劳动强度,我厂采用在炉床上方喷粉助燃方法。先在4号炉上装一简易喷粉系统进行试烧,经运行实践表明效果良好,现简介如下; The three chain furnaces in operation in our factory have the problems of poor fire distribution, low combustion efficiency, unstable output and frequent poke fire. The boiler efficiency is only about 60%, and the coal consumption of power generation is as high as 800 ~ 900 g / kWh. In order to improve the burning rate and reduce labor intensity, our factory adopts the method of dusting and burning at the top of the hearth. First in the 4th furnace mounted a simple powder system for test burn, the practice shows that the effect is good, are as follows;