铜业工程Issue(6)：54-65,12.DOI:10.3969/j.issn.1009-3842.2024.06.007
TP2铜管坯水平连铸工艺一次水冷数值模拟
Numerical Simulation of Primary Water Cooling for Horizontal Continuous Casting Process of TP2 Copper Pipe Billet
摘要
Abstract
The horizontal continuous casting process is the first step in the production of TP2 copper tubes,and the process is cumber-some.The quality of the cast billet directly determines the quality of the final product.In the actual production process,the mold is in a closed state,and the change rule of the primary cooling water inside the copper sleeve cannot be directly observed.To explore the change of the flow velocity of the primary cooling water in the waterway and its influence on the temperature field on the outer surface of the copper sleeve,numerical analysis was adopted to establish a finite element steady-state model of the mold.The BSL k-omega tur-bulence model was used to solve the problem,simulating the flow field and temperature field inside the copper sleeve under different in-let flow rates and differential water flow rates.The flow velocity variation curve of the primary cooling water in the waterway and the steady-state temperature curve at the midline of the outer surface of the copper sleeve were plotted.The results show that when the pouring temperature is 1165℃,the hauling speed is 382 mm/min,and the inlet water temperature is 32℃,with the same upper and lower inlet flow rates,the flow velocity at the water gap increases by an average of 1.75 m/s for every 4 L/min increase in inlet flow rate,and the temperature at 0.23 m from the midline of the outer surface of the copper sleeve decreases by an average of 5.7℃.When there is a difference in the upper and lower inlet flow rates and under the influence of gravity,the flow velocity of the primary cooling water in the lower half increases by an average of 0.32 m/s for every 4 L/min increase in flow rate difference,and the temperature at 0.23 m from the midline of the outer surface of the copper sleeve decreases by an average of 6.5℃.A flow rate difference of 3 L/min can alleviate the insufficient cooling intensity in the lower half.关键词
水平连铸/TP2铜管坯/石墨结晶器/一次水冷/数值模拟Key words
horizontal continuous casting/TP2 copper tube billet/graphite mold/primary water cooling/numerical simulation分类
矿业与冶金引用本文复制引用
项凯,岳峰丽,孙红运,陈大勇,陈传来..TP2铜管坯水平连铸工艺一次水冷数值模拟[J].铜业工程,2024,(6):54-65,12.基金项目
辽宁省教育厅基本科研项目(LJKMZ20220591)资助 （LJKMZ20220591）
