Abstract: The principle of ignition by using plasma burner was introduced. The plasma burner and configuration of its additional system and auxiliary devices in Inner Mongolia Datang International Tuoketuo Power Generation Corporation Limited Project phase IV were discoursed. Based on this, two requirements of coal quality for plasma ignition were put forward. Depending on application the plasma ignition technology in the corporation, the oil free ignition in boiler cold start was realized basically, and requests of boiler temperature raising curve and pressure raising curve were satisfied, so the oil saving purpose was achieved.

Key words: plasma burner, plasma ignition, principle of ignition, auxiliary system and device, coal quality request, 600MW subcritical boiler, cold start, operation