工程科学学报，第38卷，第1期：108一117,2016年1月 Chinese Journal of Engineering,Vol.38,No.1:108-117,January 2016 DOI:10.13374/j.issn2095-9389.2016.01.015:http://journals.ustb.edu.cn 铜钢复合冷却壁热变形分析 刘 奇”，程树森)区，赵宏博”，牛建平》，刘东东) 1)北京科技大学治金与生态工程学院，北京1000832)河北省万全县丰华有色金属加工厂，张家口076250 ☒通信作者，E-mail:chengsusen(@metall.ustb.edu.cn 摘要提高高炉炉腰及炉身下部冷却壁抗热变形能力是维持高炉长寿的关键.采用热态实验和数值模拟手段研究高炉炉 腰及炉身下部区域铜钢复合冷却壁的传热及热变形行为，并与铜冷却壁进行对比分析.铜钢复合冷却壁热面无渣铁壳覆盖， 煤气温度1200℃条件下，铜钢复合冷却壁最高温度为180℃，传热性能与铜冷却壁接近.铜钢界面最大等效应力约为114.45 MPa,低于铜钢复合板的抗拉强度.铜钢复合冷却壁发生弯曲变形，中心z向位移为0.66mm,较铜冷却壁低约25.8%：顶底端 沿z向位移为0.13mm,较铜冷却壁低约50%；曲率为0.93×104mm,较铜冷却壁低约51.81%.铜钢复合冷却壁抗变形能 力优于铜冷却壁，可以避免铜冷却壁热变形过大导致的螺栓及冷却水管断裂破损问题 关键词高炉：复合金属：冷却壁：热变形：热态实验：数值模拟 分类号TF73·.1 Thermal deformation analysis of copper-steel composite staves LIU Qi,CHENG Shu-sen,ZHAO Hong-bo,NIU Jian-ping,LIU Dong-dong 1)School of Metallurgy and Ecology Engineering,University of Science and Technology Beijing,Beijing 100083.China 2)Hebei Wanquan Fenghua Nonferrous Manufactory,Zhangjiakou 076250,China Corresponding author,E-mail:chengsusen@metall.ustb.edu.cn ABSTRACT The improvement in thermal deformation resistance of the copper stave in the bosh area and lower stack area of a blast furnace is the key factor for prolonging the blast furnace campaign life.The heat transfer performance and thermal deformation of the copper-steel composite stave at the bosh area and lower stack area were investigated by thermal testing and numerical simulation,and compared with those of the copper stave.The results show that the maximum temperature on the rib hot surface of the coppersteel composite stave without skull is 180C when the gas temperature is 1200C,and approaches to the heat transfer performance of the copper stave.The maximum equivalent stress of the copper/steel interface is about 114.45 MPa,lower than the tensile strength of the coppersteel plate.The copper-steel composite stave subjects to bending deformation,and the center displacement in the z direction is 0.66mm,about 25.8%lower than that of the copper stave.The up/down displacement in the z direction is 0.13mm,about 50% lower than that of the copper stave.The curvature is 0.93x10mm,about 51.81%lower than that of the copper stave.The ther- mal deformation resistance of the coppersteel composite stave is superior to that of the copper stave,and it can overcome the fracture of bolts and pipes in the copper stave due to excessive thermal deformation. KEY WORDS blast furnaces:clad metals:cooling staves:hot deformation;thermal testing:numerical simulation 提高高炉热负荷较高区域，尤其是炉腰及炉身下 铜冷却壁因传热性能和抗热流冲击性能优良等特点， 部区域，冷却设备的寿命是确保高炉长寿的关键. 目前被广泛用于高炉热负荷较高区域.但是，铜冷却 收稿日期：2014-10-15 基金项目：国家自然科学基金资助项目(61271303,51504021)：钢铁治金新技术国家重点实验室开放课题(KF1407):中央高校基本科研业 务费项目(FRF-TP-15O53A3)工程科学学报，第 38 卷，第 1 期: 108--117，2016 年 1 月 Chinese Journal of Engineering，Vol． 38，No． 1: 108--117，January 2016 DOI: 10． 13374 /j． issn2095--9389． 2016． 01． 015; http: / /journals． ustb． edu． cn 铜钢复合冷却壁热变形分析 刘 奇1) ，程树森1) ，赵宏博1) ，牛建平2) ，刘东东2) 1) 北京科技大学冶金与生态工程学院，北京 100083 2) 河北省万全县丰华有色金属加工厂，张家口 076250  通信作者，E-mail: chengsusen@ metall． ustb． edu． cn 摘 要 提高高炉炉腰及炉身下部冷却壁抗热变形能力是维持高炉长寿的关键． 采用热态实验和数值模拟手段研究高炉炉 腰及炉身下部区域铜钢复合冷却壁的传热及热变形行为，并与铜冷却壁进行对比分析． 铜钢复合冷却壁热面无渣铁壳覆盖， 煤气温度 1200 ℃条件下，铜钢复合冷却壁最高温度为 180 ℃，传热性能与铜冷却壁接近． 铜钢界面最大等效应力约为 114. 45 MPa，低于铜钢复合板的抗拉强度． 铜钢复合冷却壁发生弯曲变形，中心 z 向位移为 0. 66 mm，较铜冷却壁低约 25. 8% ; 顶底端 沿 z 向位移为 0. 13 mm，较铜冷却壁低约 50% ; 曲率为 0. 93 × 10 － 4 mm － 1，较铜冷却壁低约 51. 81% ． 铜钢复合冷却壁抗变形能 力优于铜冷却壁，可以避免铜冷却壁热变形过大导致的螺栓及冷却水管断裂破损问题． 关键词 高炉; 复合金属; 冷却壁; 热变形; 热态实验; 数值模拟 分类号 TF573 + . 1 Thermal deformation analysis of copper--steel composite staves LIU Qi1) ，CHENG Shu-sen1)  ，ZHAO Hong-bo1) ，NIU Jian-ping2) ，LIU Dong-dong2) 1) School of Metallurgy and Ecology Engineering，University of Science and Technology Beijing，Beijing 100083，China 2) Hebei Wanquan Fenghua Nonferrous Manufactory，Zhangjiakou 076250，China  Corresponding author，E-mail: chengsusen@ metall． ustb． edu． cn ABSTＲACT The improvement in thermal deformation resistance of the copper stave in the bosh area and lower stack area of a blast furnace is the key factor for prolonging the blast furnace campaign life． The heat transfer performance and thermal deformation of the copper--steel composite stave at the bosh area and lower stack area were investigated by thermal testing and numerical simulation，and compared with those of the copper stave． The results show that the maximum temperature on the rib hot surface of the copper--steel composite stave without skull is 180 ℃ when the gas temperature is 1200 ℃，and approaches to the heat transfer performance of the copper stave． The maximum equivalent stress of the copper / steel interface is about 114. 45 MPa，lower than the tensile strength of the copper--steel plate． The copper--steel composite stave subjects to bending deformation，and the center displacement in the z direction is 0. 66 mm，about 25. 8% lower than that of the copper stave． The up/ down displacement in the z direction is 0. 13 mm，about 50% lower than that of the copper stave． The curvature is 0. 93 × 10 － 4 mm － 1，about 51. 81% lower than that of the copper stave． The ther￾mal deformation resistance of the copper--steel composite stave is superior to that of the copper stave，and it can overcome the fracture of bolts and pipes in the copper stave due to excessive thermal deformation． KEY WOＲDS blast furnaces; clad metals; cooling staves; hot deformation; thermal testing; numerical simulation 收稿日期: 2014--10--15 基金项目: 国家自然科学基金资助项目( 61271303，51504021) ; 钢铁冶金新技术国家重点实验室开放课题( KF14--07) ; 中央高校基本科研业 务费项目( FＲF--TP--15--053A3) 提高高炉热负荷较高区域，尤其是炉腰及炉身下 部区域，冷却设备的寿命是确保高炉长寿的关键［1--8］． 铜冷却壁因传热性能和抗热流冲击性能优良等特点， 目前被广泛用于高炉热负荷较高区域． 但是，铜冷却