宝钢股份高炉煤气干法除尘与湿法除尘的选择  

Selection of Dry and Wet Type Dedusting Process of BFG in Baosteel

作　　者：胡中杰[1] 尹腾 华建明[1] 李昕 HU Zhongjie;YIN Teng;HUA Jianming;LI Xin(Ironmaking Plant,Baoshan Iron and Steel Co.,Ltd.,Shanghai 200941,China;Ironmaking Plant,Wuhan Iron and Steel Co.,Ltd.,Wuhan 430083,Hubei,China)

机构地区：[1]宝山钢铁股份有限公司炼铁厂,上海200941 [2]武汉钢铁有限公司炼铁厂,湖北武汉430083

出　　处：《炼铁》2024年第1期1-5,共5页Ironmaking

摘　　要：对高炉煤气除尘系统是选择干法除尘还是湿法除尘进行了探讨。以宝钢股份高炉煤气干法除尘与湿法除尘运行数据为基础,重点分析比较了煤气干法除尘与湿法除尘的TRT发电量及发电效率,提出了煤气干法除尘TRT发电效率低于湿法除尘的新观点。认为,传统观念中煤气干法除尘的发电量比湿法除尘增加30%,是建立在炉顶温度适宜,且TRT发电效率保持湿法除尘水平的基础上;宝钢股份高炉的运行数据表明,与煤气湿法除尘相比,干法除尘TRT电能转化效率低,同等条件下的发电量仅增加15.9%,而TRT发电效率低9.33%。Dry and wet type BFG dedusting processes are analyzed and compared based on their actual operation data in Baosteel.The analysis and comparison focus on the TRT power generation capacity and efficiency related to the dry and wet process,and a new insight is emerged:the power generation efficiency of TRT working with the dry type process is lower than when working with the wet type process.It is pointed out that the conventional consideration that power generation capacity of TRT working with the dry process is 30%higher than that when working with the wet type is underpinned by the case that furnace top temperature is appropriate and the TRT power generation efficiency is the same as that when working with wet type process.The actual operation data of the Baosteel BFs proves the power conversion efficiency of TRT working with dry type process is lower than that when working with wet type process,and compared with the later case,TRT power generation capacity in the former case only increases by 15.9%under the identical conditions,but the efficiency is 9.33%lower.

关 键 词：大型高炉 煤气除尘系统 湿法除尘 干法除尘 发电量 发电效率 

分 类 号：TF54[冶金工程—钢铁冶金]