摘要
从传热学的角度出发,利用VC编制炉缸炉底温度场计算软件,对国内某些高炉进行了实例建模.模型计算结果和实际高炉热电偶温度数据吻合较好.据此对目前流行的“传热法”的高导热压小块炭砖炉缸和“隔热法”的陶瓷杯复合炉缸炉底的各自特点进行了分析,以实例为基础阐明了这两种结构的炉缸炉底延长高炉寿命的不同方法.指出在铁水和耐火材料之间低导热系数的“保护壳”存在,是不同设计延长炉缸炉底寿命的相同本质,并分析了这两种结构的炉缸炉底的不足.
According to the theory of heat transfer, BF hearth bottom models were built based on actual examples by software with VC language, the calculated results in good accordance with the data of BF thermal couples. Temperature distribution and the capability of resistance to erosion were analyzed for the two prevalent kinds of hearth bottom, called ＂heat transfer method＂ hearth with small carbon bricks of high thermal conductivity and ＂heat isolation method＂ ceramic synthetic hearth bottom. Different ways in protecting hearth bottom were clarified by analyzing some actual examples. The result shows that the existence of a ＂protecting skull＂ with low thermal conductivity between hot metal and brick layers is the same essence of prolonging the life of hearth bottom, and the disadvantages of the two kinds of hearth bottom were analyzed.
出处
《北京科技大学学报》
EI
CAS
CSCD
北大核心
2007年第6期607-612,共6页
Journal of University of Science and Technology Beijing
基金
国家自然科学基金资助项目(No.60472095)
关键词
炉缸炉底
高炉寿命
长寿实质
传热学
温度场
hearth bottom
BF life
essence of long life
heat transfer theory
temperature field
