浆池传热的实验研究

在模拟浆池中,由于传热过程和传质过程的相似,通过对温度场分布的研究,掌握浆池中的传热传质状况。通过对实验结果的分析,得出加强浆池中氧化空气与浆液之间的传热传质的措施有助于提高搅拌速度;布置更多的空气分布喷嘴,使得产生的气泡个数增加而体积减小;适当增加喷嘴的总面积,降低空气鼓出的速度。另外,对于实验中的浆池,提出了一个传热系数的拟合公式。

Experimental study of heat transfer in slurry pond

In the simulative slurry pond, according to the study of the temperature field, the status of heat and mass transfer in it was mastered because of the resemblance in the process of heat transfer and mass transfer. The results showed that the measures to strengthen heat and mass transfer between slurry and oxidant air are to enhance agitation speed, to arrange more air inputs that increase the quantity of air bubbles and decrease cubage, to properly enlarge the total area of air inputs so as to reduce air output speed. And a fitting formula for the heat transfer coefficient of the experimental slurry pond was presented.