三种提高褐煤锅炉中速磨煤机干燥出力方法的对比分析  

Comparison and Analysis on Three Methods for Improving Drying Capacity of a Medium-speed Pulverizing System for Lignite-fired Boilers

作　　者：刘文建 潘绍成 李文吉 易广宙 莫春鸿 Liu wenjian;Pan Shaocheng;Li Wenji;Yi Guangzhou;Mo Chunhong(Key Laboratory for Clean Combustion and Flue Gas Purification of Sichuan Province, Chengdu611731, China;Dongfang Boiler Group Co., Ltd., Zigong 643001, Sichuan Province, China)

机构地区：[1]清洁燃烧与烟气净化四川省重点实验室,成都611731 [2]东方电气集团东方锅炉股份有限公司,四川自贡643001

出　　处：《发电设备》2020年第3期210-214,共5页Power Equipment

摘　　要：介绍了三种提高褐煤锅炉中速磨煤机制粉系统干燥出力的方法,分析了其系统特征、运行情况及存在的问题,并对优缺点进行对比。结果表明:热一次风蒸汽加热系统布置简单、工程实施难度小、锅炉效率高、成本低、干燥出力提升效果明显。An introduction is presented to three methods for improving the drying capacity of a medium-speed pulverizing system for lignite-fired boilers,together with an analysis on the system features,operation conditions and existing problems,while their advantages and disadvantages were compared.Results show that the primary hot air steam-heating system is simple in layout,easy to implement,with high efficiency of boiler,low cost of system,and obvious effect in improvement of the drying capacity.

关 键 词：褐煤 锅炉 中速磨煤机 制粉系统 干燥出力 蒸汽加热 

分 类 号：TK223.25[动力工程及工程热物理—动力机械及工程]