回转水泥窑同向速差射流煤粉燃烧器  

Pulverized Coal Fired Burner Using Coflow Jets with Velocity Difference in Revolving Kiln of Cement

作　　者：张拥军 

机构地区：[1]韶关凡口铅锌矿,韶关512325

出　　处：《燃烧科学与技术》2000年第3期275-277,共3页Journal of Combustion Science and Technology

摘　　要：利用多股气体同向流动 ,人为控制气流的喷射速度 ,造成一定的速度差 ,借助射流的强烈的引射作用 ,使高温烟气回流至一次风、粉混合气流中 ,使一次风、粉提前加热、着火 ,从而强化了煤粉的燃烧 ,并保证了所需火焰的形状 ,解决了在回转水泥窑中大比例掺烧无烟煤的技术难题。Using velocity difference among the multiple coflow jets and the strong entraiment effect of high speed jets,the high temperature flue will be recirculated to the exit of pulverized coal stream and mixed with the steam.The coal will be heated and ignited in advance,and thus the coal combustion will be intensified.Meanwhile the flame configuration can be ensured by using the present burner.Therefore the combustion of large amounts of anthrecite added to the bituminous coal is solved.

关 键 词：煤粉燃烧器 回转水泥窑 气体同向流动 射流 

分 类 号：TQ172.622[化学工程—水泥工业]