By using plasma igniting technique in coal-burning boilers, firing phenomenon of air pre-heater in the boilers because of many starts of cold furnace and the poor oil frosting.

• 在燃煤锅炉中使用等离子点火技术，可以避免由于多次冷炉启动、燃油雾化不良而引起的锅炉空气预热器的着火现象。