蓄热式钢包烘烤装置的热工特性

来源期刊：中南大学学报(自然科学版)2004年第2期

论文作者：欧俭平 萧泽强 蒋绍坚 刘建华

文章页码：217 - 221

关键词：蓄热式;钢包烘烤;热工特性;高温空气燃烧

Key words：high temperature air combustion; regenerative; ladle heating; thermal performance

摘    要：为研究蓄热式钢包烘烤装置的热工特性,对高温空气燃烧技术的加热效果进行了理论分析,并针对钢厂同时使用的新、旧钢包烘烤系统进行对比实验研究。研究结果表明:高温空气燃烧可以提高火焰温度,增大火焰体积,增强系统加热能力,提高燃料利用系数;使用蓄热式烤包系统对钢包烘烤器进行改造,经改造的系统节能近40%,钢包烘烤升温速度由6 K/min升高到25 K/min左右,钢包内温度均匀性提高,各测点的温度相差不超过30 K,转炉和连铸生产条件大大改善。

Abstract: With the aim to evaluate heat utilization efficiency and the thermal performance of regenerative ladle heater, the heating effect of high temperature air combustion (HTAC) is analyzed theoretically. A series of comparative testswere taken under the production condition between conventional ladle heater and regenerative ladle heater in a 160 t ladle inTangshan Iron&Steel CoLtd (TISCO). The results show that hight emperatureair combustion can increase the adiabatic flame temperature and enlarge the flame volume, which can strength-en the heating capability. The energysaving effectofthe newtype ladle heater inTISCO is about40% and the ladle heating rate increased from 6 K/min to 25 K/min. The temperature of lining is higher and more even.The deviation of temperature between each position is less than 30 K. So the steel-making conditions are improved greatly by the regenerative ladle heating system.