Based on the theory of heat transfer, parametric modeling is established for the heat transfer model of copper cooling stave, which appears in recent years, with special-shaped tubes (elliptical, rectangular, double circular, three circular and ortho hexagonal) in a blast furnace (BF) bosh and the optimal tube for the cooling pipe is selected on the basis of the heat transfer characteristics of the stave. The heat transfer model of the hot end of stave embedded bricks which are not covered by slag, is analyzed using thermal-structural coupling method at the initial stage of blow-in under the normal working condition. The mutual influence of various parameters on the mechanical properties of copper stave is obtained using the response surface method. This method is combined with NSGA-II genetic algorithm to optimize the structure parameters and longevity technology of the bosh. The optimized structure of the furnace bosh is improved in heat transfer characteristics and mechanical properties, which proves the model and parameterized calculation program can be used as an optimized design and evaluation of the longevity technology of the bosh structure.

基于传热理论，建立了近年来出现的铜冷却壁传热模型的参数化模型，爆炸中使用的是异形管（椭圆形，矩形，双圆形，三个圆形和正六角形）炉膛，根据冷却壁的传热特性选择冷却管的最佳管。在正常工作条件下，在吹入初期采用热-结构耦合方法分析了没有被炉渣覆盖的壁挂式砖热端的传热模型。使用响应面法获得了各种参数对铜冷却壁机械性能的相互影响。该方法与NSGA-II遗传算法相结合，优化了波什的结构参数和寿命技术。优化后的炉膛结构改善了传热特性和力学性能，证明了该模型和参数化计算程序可作为炉膛结构寿命技术的优化设计和评价。