生物质对粉煤燃烧特性的影响  

EFFECT OF THE BIOMASS ON THE COMBUSTION CHARACTERISTIC OF THE POWDERED COAL

作　　者：邢康[1] 唐庆杰[1] 张强[1] 

机构地区：[1]河南理工大学材料科学工程学院,河南焦作硕士生454000

出　　处：《煤炭转化》2012年第4期69-71,76,共4页Coal Conversion

基　　金：河南理工大学博士基金资助项目(B2011-059)

摘　　要：采用热分析技术详细研究了生物质玉米秸秆及牛粪对粉煤燃烧特性的影响.结果表明,在粉煤中添加一定量的玉米秸秆或牛粪,能显著改善粉煤的燃烧性能.生物质与粉煤混合料的着火点明显低于粉煤,混合料达到最大燃烧速度时的温度范围明显小于粉煤,使粉煤在一个较窄的温度区间内迅速完全燃烧.随着混合料中粉煤比例的逐渐增加,生物质的促燃效果逐渐减弱.玉米秸秆对粉煤燃烧性能的优化效果明显好于牛粪.Effect of the corn straw and cow dung on the combustion characteristic of the powdered coal was studied by thermal analysis technology in this paper. The results show that the combustion characteristic of the powdered coal improved significantly by adding a certain a- mount of corn straw or cow dung. The fire point of mixture for biomass and coal is lower than powdered coal obviously, and the temperature range reaching maximum combustion speed is less than the powdered coal obviously. The powdered coal could completely combust in a narrow range of temperature quickly. The effect of biomass is gradually decreased with the content of powdered coal increasing. The corn straw is better than cow dung in the combustion characteris- tic of the mixture for coal and biomass.

关 键 词：热分析技术 玉米秸秆 牛粪 粉煤 燃烧性能 

分 类 号：TK62[动力工程及工程热物理—生物能] TQ534[化学工程—煤化学工程]