锌挥发窑整体浇筑衬体烘窑分析

Analysis and Exploration of Drying Kiln for Integral-casting Lining of Zinc Volatilization Kiln

烘窑是挥发窑衬体使用过程中的关键环节。通过分析烘窑过程中烟气火焰与窑衬体、窑衬体与窑壳之间的传热,阐述烘窑的机理,并通过研究窑壳温度与窑头衬体温度的变化,及窑壳各段达到一定温度所需时间,推断出窑衬体温度是窑壳温度的3~4倍;烘窑要避免升温过快,当窑尾窑壳温度超过160℃时,窑衬体已经烘干。此外,通过分析不同窑尾恒温温度对应的各处窑壳温度分布,探究各恒温温度段的主要作用,为挥发窑整体浇筑衬体烘干进程提供依据。

Drying kiln was the key link in the use of volatilizing kiln lining.By analyzing the heat transfer between the flue gas flame and the kiln lining,and between the kiln lining and the kiln shell during the drying process,the mechanism of the drying kiln was expounded.By studying the changes in the temperature of the kiln shell and the temperature of the kiln head lining,and the time required for each section of the kiln shell to reach a certain temperature,it was deduced that the temperature of the kiln lining was 3~4 times that of the kiln shell,and excessive heating should be avoid during drying,and the kiln lining had been dried when the shell temperature of the kiln tail exceeded 160℃.In addition,by analyzing the temperature distribution of kiln shell corresponding to different constant temperature at the end of the kiln,the main effect of each constant temperature was studied,which provided a basis for the drying process of the integral-casting lining of the volatile kiln.