440t/h循环流化床锅炉大比例掺烧煤泥试验研究  

Experimental study on large proportion coal slurry co-firing in a 440 t/h CFB boiler

作　　者：邵伟 袁隆基[2] 郭晓勇 李强[3] 

机构地区：[1]山东兖矿济三电力有限公司,山东济宁272069 [2]中国矿业大学电力工程学院,江苏徐州221008 [3]西安热工研究院有限公司,陕西西安710032

出　　处：《热力发电》2013年第4期89-93,101,共6页Thermal Power Generation

摘　　要：以济三电力有限公司440t/h循环流化床(CFB)锅炉为研究对象,就煤泥掺烧比例变化对锅炉燃烧特性的影响进行了试验研究。结果表明:随着煤泥掺烧比例的增大,锅炉密相区床温均有所下降,77%掺烧比例时床温降到860℃左右,有利于炉内脱硫,脱硫效率达到86%以上;随着煤泥掺烧比例的增加,锅炉效率由低到高,再由高到低变化;当煤泥掺烧比例在50%～60%范围内时对应锅炉效率峰值,超过这个比例后锅炉效率明显下降。Taking the 440 t/h circulating fluidized bed(CFB) boiler in Ji-three Power Co.,Ltd.as the research object,experimental study on effect of coal slime mixed ratio on combustion characteristic of boiler was performed.The results showed that,with an increase in coal slime mixed ratio,the bed temperature in dense-phase zone of the boiler decreased.The bed temperature dropped to about 860 ℃ when the mixed combustion proportion was 77%,which made the desulphurization efficiency increased to over 86%.As the proportion of coal slime rising,the boiler efficiency first increased,and then dropped.The boiler efficiency reached the maximum when the coal slime mixed proportion ranged from 50% to 60%.

关 键 词：CFB锅炉 煤泥 掺烧 燃烧特性 脱硫效率 锅炉效率 

分 类 号：TK16[动力工程及工程热物理—热能工程]