回转水泥窑燃烧段的整体冷态数值研究  

Integral Numerical Investigation of Combustion Region in Revolving Kiln of Cement

作　　者：侯凌云[1] 傅维标[1] 张拥军 

机构地区：[1]清华大学工程力学系,北京 100084 [2]广东韶关凡口铅锌矿，韶关 512325

出　　处：《能源技术》2000年第4期235-237,共3页Energy Technology

摘　　要：针对以往只对燃烧器本身进行研究的局限 ,首次将回转水泥窑筒体和其内部的速差射流煤粉燃烧器进行了整体冷态数值研究。模拟表明 ,在回转水泥窑中有高温烟气进入速差射流燃烧器中以强化燃烧 ;另外 ,回转水泥窑中采用该型燃烧器及中心高速射流能使煤粉的扩散受到约束 。This paper simulates the cold flow processes for revolving kiln of cement and pulverized coal fired burner using central jet with large velocity difference, overcoming the limit of only investigating burner itself. The results show that because of the high temperature gases entering the burner, the combustion is intensified. Furthermore, both the present burner and central high speed jet can restrain the expansion of pulverized coal and make flame not arrive the slagging layer of kiln.

关 键 词：回转水泥窑 速差射流煤粉燃烧器 整体冷态数值研究 

分 类 号：TQ172.622[化学工程—水泥工业]