摘要
为了从理论上研究罐式煅烧炉热工特性,考虑了流场变化对换热的影响,使用流固耦合方法,对罐式煅烧炉整个生产过程的流场和温度场进行了完全数值模拟。计算结果和实测结果相比较,平均相对误差在6.9%,并得出如下结论:整个火道负压损失114Pa,火道平均流速大约为4m/s,整个火道的平均温度为959℃,火道出口平均温度为911℃。压力损失和高流速区域主要集中在高温火焰区域和火道拐弯处。料箱最高温度集中在第四层和第五层位置,最高煅烧温度约为1280℃,料箱平均温度约928℃,出口温度约为920℃。
To research theoretically the thermal characteristic of shaft kiln and predict three - dimensional temperature and flow distribution of the shaft kiln in the whole production processing,fluid - solid coupled method is presented. The average relative error is 6.9% comparing the calculation value and testing value, and the conclusions are as following： the pressure drop, the average velocity and the average temperature of the whole flue is 114Pa,4m/s and 959℃ respectively. And the average temperature of the flue outlet is 911℃. The main zone of the pressure loss and the high velocity are laid the flame zone and the comer of flue. The highest calcining temperature is 1280℃ ,in the position of 4^th and 5^th. And the average temperature in the pit is 928℃, the temperature in pit outlet is 920℃.
出处
《轻金属》
CSCD
北大核心
2013年第12期33-36,42,共5页
Light Metals
关键词
罐式煅烧炉
数值模拟
火道
料箱
最高煅烧温度
shaft kiln
numerical simulation
flue
pit
highest calcining temperature
