【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。更多还原

【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.更多还原