淮南电厂为了节约点火和低负荷用油,在~#4机组大修期间,把高能电弧直接点燃煤粉的装置安装在~#4炉上,并首次试用成功。该炉系上海锅炉厂SG—400—50410型三化锅炉,其高能电弧直接点燃煤粉装置的系统如图1。本装置的特点是:煤粉采用高浓度输送和燃烧;采用等离子空气喷枪引弧,该型等离子弧焓值高,且高度集中, Huainan Power Plant in order to save ignition and low load oil, # 4 unit during the overhaul, the high-energy arc directly lit pulverized coal plant installed in ~ # 4 furnace, and the first successful trial. The system of Shanghai Boiler Works SG-400-50410-type three boilers, the high-energy electric arc directly ignited pulverized coal plant system shown in Figure 1. The characteristics of the device are as follows: pulverized coal is transported and burned in a high concentration; the arc is ignited by a plasma air spray gun, the type of plasma arc enthalpy is high and highly concentrated,