300MW循环流化床锅炉播煤粉口改造-内蒙古电力技术.PDFVIP

内蒙古电力技术 76 INNER MONGOLIA ELECTRIC POWER 2017 年第35 卷第1期 doi:10.3969/j.issn. 1008-6218.2017.01.008 300 MW 循环流化床锅炉播煤粉口改造 李 威，李 先，宝 青，王永锋 （内蒙古京泰发电有限责任公司，内蒙古 鄂尔多斯 010300 ） 摘要：内蒙古京泰发电有限责任公司2×300 MW 循环流化床锅炉播煤粉口经常由于堆积 煤粉、煤泥导致高温烧损变形，进而造成附近浇注料脱落、水冷壁管裸露磨损，直接影响锅炉 的安全稳定运行。针对播煤粉口烧损变形原因，提出在播煤粉口接入冷却风系统、在落煤管 上加装空气炮及对播煤粉口结构进行改造的方案。改造后，落煤管堵煤次数明显降低，再未 发生播煤粉口烧损变形现象，提高了机组运行的安全性。 关键词：循环流化床锅炉；播煤粉口；烧损变形；落煤管；空气炮；冷却风管 文献标志码：B 中图分类号：TM621.2 文章编号：1008-6218（2017 ）01-0076-04 Reconstruction on Pulverized Coal Feeder′s Export of 330 MW CFB Boiler LI Wei, LI Xian, Bao Qing, WANG Yongfeng （Inner Mongolia Jingtai Electric Power Generation Co.,Ltd., Ordos 010300, China） Abstract ：In Inner Mongolia Jingtai Electric Power Generation Co.,Ltd., the pulverized coal feeder′s exports of 2 × 300 MW CFB boilers were often be damaged and deformated under high temperature due to the accumulation of pulverized coal and coal slurry, which caused the nearby castable falling off, the water-wall tubes bared and worn out, directly affected the safe and stable operation of the boilers. According to the reason for the pulverized coal feeder′s export burning and deformed, put forword the schemes of inserting the cooling air duct system to the pulverized coal feeder′s export, installing the mounting air cannon on the coal dropping pipe, and the pulverized coal feeder′s export. After the transformation, the number of coal plugging in the coal dropping pipe was obviously reduced, pulverized coal feeder′s exports burning damage and deformation never happened again, a