工程科学学报2017，Vol.39Issue(3)：389-398,10.DOI:10.13374/j.issn2095-9389.2017.03.011
变渣皮厚度条件下铜冷却壁应力分布规律及挂渣稳定性
Stress distribution law and adherent dross stability of the copper cooling stave with variable slag coating thickness
摘要
Abstract
A thermal-mechanical coupling model of a copper cooling stave with variable slag coating was founded based on thermal elastic mechanics, and the influence of the gas temperature, the cooling system, the materials of insert bricks, and the properties of the slag on the stave life and the stability of the adherent dross was analyzed from the view point of the stress distribution of the stave body and the slag-brick interface. The results show that the increase of the gas temperature linearly improves the stress of stave body and reduces the stability of the adherent dross meanwhile. The stress of the stave body and the stability of the adherent dross both de-crease at first and then increase when the slag coating thickness increases, and the slag coating thickness should be controlled between 30 to 60 mm. The increase of water velocity incurs tiny growth of the stress of the stave body, while the stability of the adherent dross is enhanced. The stress of the stave body is weakly reduced with the increase of water temperature, but the stability of the adherent dross decreases heavily meanwhile. The increase of the heat conductivity of insert bricks and the decrease of the heat expansion coeffi-cient of the slag significantly reduce the stress of the stave body and enhance the stability of the adherent dross.关键词
冷却壁/挂渣/热-力分析/应力场Key words
cooling stave/adherent dross/thermal mechanical analysis/stress field分类
矿业与冶金引用本文复制引用
李峰光,张建良..变渣皮厚度条件下铜冷却壁应力分布规律及挂渣稳定性[J].工程科学学报,2017,39(3):389-398,10.基金项目
国家自然科学基金资助项目(51604103) （51604103）
湖北省自然科学基金资助项目(2016CFB293) （2016CFB293）
湖北汽车工业学院博士科研启动基金资助项目(BK201607) （BK201607）
