煤种变化对锅炉结渣的影响分析研究  

作　　者：梁海泉 刘建江[2] 佐双吉 

机构地区：[1]内蒙古国电电力建设工程有限责任公司 [2]内蒙古工业大学能源与动力工程学院,内蒙古呼和浩特010051

出　　处：《科技创新导报》2017年第36期42-43,共2页Science and Technology Innovation Herald

摘　　要：煤质特性变化是影响锅炉结渣的主要原因。通过对锅炉结渣的影响因素:煤灰熔融特性和低位发热量的分析及锅炉运行参数制粉系统、炉膛温度和风煤配比不当的分析,提出了当煤种改变时预防结渣的措施:运行负荷低,掺烧比例高,运行负荷高,掺烧比例低,相应调整机组运行参数;提高锅炉对煤种的适应范围;提高锅炉本身改造力;进而提高机组运行稳定性。Coal type changes bring variation of coal properties,variation of coal properties is main factor of coal slagging.Effect analyses of boiler slagging on ash melting characteristic,low heat value,Coal Pulverizing System,furnace chamber temperature and mismatch air-coal ratio.When coal type changes,some preventive action is proposed that high mixing ratio when low load and low mixing ratio when high load,adjusting the operating parameters,improve the adaptability of boiler to coal type,improve capable of boiler remake then operation stability of the unit is improved.

关 键 词：煤种变化 锅炉 结渣 煤质特性 

分 类 号：TK227.3[动力工程及工程热物理—动力机械及工程]