利用烧结环冷余热和球团竖炉烘干块矿的降本实践  

Cost Reduction Practice of Using Sintering Environmental Protection Cooling Waste Heat and Pelletizing Shaft Furnace to Dry up Lump Ore

作　　者：唐泽华 王毅 郭志斌 TANG Zehua;WANG Yi;GUO Zhibin(Fangda Special Steel Technology Co.,Ltd.,Nanchang 330012,China)

机构地区：[1]方大特钢科技股份有限公司,江西南昌330012

出　　处：《山东冶金》2023年第5期59-61,共3页Shandong Metallurgy

摘　　要：为解决块矿使用中存在的含水率高、含粉量大、难筛分等生产问题,通过充分利用烧结环冷冷却烧结矿释放的热量蒸发块矿水分和简单实施的竖炉改造来烘烤块矿,将块矿入炉平均水分控制在2%以下,高炉块矿配比增加至20%以上,高炉燃料比降低了2.6 kg/t,实现综合效益2 527万元。In order to solve the production problems existing in the use of lump ore,such as high moisture content,large powder content and difficult screening,the lump ore is baked by making full use of the heat released by sinter environmental protection cooling and simple shaft furnace transformation,the average moisture content of the lump ore entering the blast furnace is controlled below 2%,the proportion of blast furnace lump ore is increased to over 20%,and the blast furnace fuel ratio is reduced by 2.6 kg/t,a comprehensive benefit of 25.27 million Yuan is achieved.

关 键 词：烧结环冷机 竖炉 烘干块矿 水分 烘干温度 

分 类 号：TF046[冶金工程—冶金物理化学]