【摘要】 经试验室研究及扩大试验,最新开发的ACL顶燃式热风炉于1987年3月在湖南冷水江铁焦总厂进行工业性试验研究,并取得了此项新技术新工艺推广应用的重要数据,4个多月的工业试验表明:只使用高炉煤气,拱顶温度最高达1375℃,平均1267℃,出口风温最高达1320℃,平均1220℃,短焰燃烧器燃烧稳定,空气过剩系数1.02～1.05;热风炉结构合理,径向温度分布均匀,消除了一般顶燃热风炉的结构缺陷。该热风炉操作与传统热风炉相同,安全可靠;每1m~2加热面积投资比改造内燃式热风炉高4％,但热效率高,获得的风温高,经济效益大,对老厂改造或新厂建设均有推广使用的价值。更多还原

【Abstract】 A Top-Combustion stove of ACL type, developed through laboratory and pilot test, was carried out the industrial experiment at Lengshuijiang Iron and Coke Works in March 1987, and important data of operation had been obtained. Through more than 4 months operation it showed that if only blast furnace gas being used the highest dome temperature reached 1375℃ the average 1267℃ and the maximum blast temperature at stove exit was 1320℃ the average 1267℃ short-flame burner has been operated with high stability and at a smaller excess air ratio of 1.02-1.05. Designed construction of ACL type stove is logical and the radial-temperature distribution is more uniform, so, construction deficiencies of conventional type have been avoided. The operation of top-combustion stove is the same as the traditional one and much safer. Investment per 1 m~2 heating surface in top-combustion stove is 4% higher than that for the reconstruction of internal combustion type, but the heat efficiency and blast temperature obtained are much higher. These would result in obvious benefits. It is suitable and applicable to either the reconstruction of old blast furnaces or building new ones.更多还原