含碳球团厚料层穿流干燥的实验研究  

Experiment Research on Hot Air Cross-flow Drying Through Thick-layer Carbon-containing Pellets

作　　者：冯俊小[1] 谢晓燕[1] 孙立佳[1] 张大宝[1] 

机构地区：[1]北京科技大学热能工程系,北京100083

出　　处：《工业加热》2008年第3期9-12,共4页Industrial Heating

摘　　要：以正交原理为基础,进行了含碳球团厚料层穿流干燥研究,研究了不同热风温度、热风流速、球团初始湿含量、生球尺寸以及料层厚度对球团干燥过程的影响。由实验数据回归得到了反映以上各因素对平均干燥速率、瞬时干燥速率、干燥时间、干燥过程温度影响程度的多元指数方程,且误差在允许范围内。方程很好地反映了各个因素对球团干燥过程的影响,对含碳球团干燥有一定的指导意义。Orthogonal experiments of cross-flow drying through thick layer carbon-containing pellets were made. The influence of different parameters, such as air temperature, air speed, initial moisture content, size and thickness of raw pellets and so on, on drying process was studied in hot air cross-flow experiment. The multi-exponent formulas which reflect the effects of the parameters listing above on average and transient drying rate, drying time and temperature in drying progresses were gained, and the precision of these formulas is high enough to be applied. So the results got from the experiments could offer reference to industry production.

关 键 词：含碳球团 厚料层 穿流干燥实验 正交回归 

分 类 号：TQ536.9[化学工程—煤化学工程]