Abstract: Considering the working principle of plasma, the structure characteristics, the demands of coal grade, the regulation of air distributing, the safety monitoring and other respect, the technical essentials of plasma ignition in cold state and temperatureincreasing control were discoursed. According to the practical application effects of the technology in Huadian Baotou Power Generation Corporation Limited, the experiences of plasma ignition and temperatureincreasing control technology, which is suitable for directfired plate mill with middlespeed and variable load, were summarized.

Key words: plasma ignition technology, temperature-increasing control technology, auxiliary system, monitoring system