制粉系统掺炉烟在新建660 MW机组的应用
张志强
（山东华电龙口电厂，山东 龙口 265700）
摘要： 为保证山东华电龙口电厂四期660 MW 机组制粉系统的安全运行，通过抽取引风机出口炉烟，根据使用要求掺
入到每台磨煤机入口来保证制粉系统和磨煤机的安全运行，解决主、再热气温不足，水冷壁结焦，高温腐蚀和蠕胀等问
题，减少喷氨量和氨逃逸，进而提升锅炉效率。以山东华电龙口电厂为例，对制粉系统掺炉烟在新建660 MW 机组的应
用进行了探讨。
关键词： 掺炉烟；磨煤机；制粉系统
中图分类号： TK223.25     文献标识码： A     文章编号： 2095-0802-(2021)12-0187-02
Application of Furnace Smoke Mixing in Pulverizing System in Newly-built 660 MW Unit
ZHANG Zhiqiang
(Huadian Longkou Power Plant of Shandong, Longkou 265700, Shanxi, China)
Abstract: To ensure the safe operation of the pulverizing system of the 660 MW unit of Phase IV of Huadian Longkou Power
Plant of Shandong, the smoke from the outlet of the induced draft fan is extracted and mixed into the inlet of each coal mill
according to the use requirements to ensure the safety operation of the pulverizing system and coal mill, solving the problems of
insufficient reheating temperature, coking of water wall, high temperature corrosion and creeping expansion, reducing the amount
of ammonia injection and ammonia escape, and then improving the efficiency of the boiler. Taking Huadian Longkou Power Plant
of Shandong as an example, this paper discussed the application of furnace smoke mixing in the pulverizing system in the newlybuilt
660 MW unit.

Key words: furnace smoke mixing; coal mill; pulverizing system