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内配碳球团热风穿流干燥的实验研究

Experiment Research into Hot Air Cross-flow Drying on Carbon-containing Pellets

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【作者】 冯俊小杨守慧

【Author】 FENG Jun-xiao,YANG Shou-hui(Schoolof Mechanical Engineering,University of Science and Technology Beijing,Bejing 100083,China)

【机构】 北京科技大学机械工程学院北京科技大学机械工程学院 北京100083北京100083

【摘要】 通过内配碳球团的热风穿流干燥实验,研究了不同热风温度、流速、球团初始湿含量以及生球尺寸对干燥过程的影响规律,并对球团的爆裂温度进行测定。由实验数据得到干燥速率曲线。实验结果表明:内配碳球团的干燥过程包括升速和降速两个阶段,其中升速段较短,降速段很长;各因素水平同时受爆裂温度的约束;为进一步计算机进行球团干燥过程模拟提供依据。

【Abstract】 The influence of different parameters on drying process is studied in hot air cross-flow experiment,which includes air temperature,air speed,initial moisture content and size of raw pellets.And the crack temperature of pellets is derived in this experiment.Curves of drying rate are obtained based on experimental data.It is shown that drying process of carbon-containing pellets consist of increasing rate and falling rate stage.The increasing rate stage is relative short and the falling rate stage is quite long.Each factor and level is restricted by cracking tem-perature at the same time.These results offer reference to simulation of drying process of pellets with computer.

  • 【文献出处】 工业加热 ,Industrial Heating , 编辑部邮箱 ,2007年01期
  • 【分类号】TF046.6
  • 【被引频次】3
  • 【下载频次】143
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