Because domestic power plants use high-sulfur coal as the main fuel, the amount of sulfur dioxide emissions in China has been increasing year by year. The large amount of sulfur dioxide emissions has made China the third country and region in the world to be polluted by acid rain after North America and Europe. To protect the survival links, and reduce sulfur emissions and hazards, power plant flue gas desulfurization technology is receiving widespread attention, and the environmental protection industry is gradually forming. For this purpose, our company has specially developed a series of electric heating strips for desulfurization and environmental protection engineering in power plants, to avoid the reduction of desulfurization efficiency and even the inability to operate normally caused by various slurry pipelines and industrial water pipes in the desulfurization system of power plants due to winter freezing and blockage.