结晶器循环水冷却技术探讨

Discussion of Water-cooling Technology for Mold

介绍结晶器常用的3种不同循环水冷却流程:闭路循环水冷却系统、半闭路循环水冷却系统、开路循环水冷却系统。综合分析比较,原水暂时硬度较高地区,连铸结晶器冷却水质暂时硬度设计值可设为小于40 mg/L(以CaO计),推荐采用软水闭路循环水冷却系统;在原水暂时硬度较低的地区,冷却水质暂时硬度设计值可以设为80mg/L(以CaO计)左右,推荐采用开路循环水系统,补充水采用部分工业水和部分软水混合使用。

This paper presents 3 different circulating water-ccoling systems commonly used for molds： closed circuit water - cooling system, semi - dosed circuit water - cooling system and open - circuit water - cooling system; Through analysis and comparison, the following conclusion is drawn： in regions where the temporary hardness of raw water is relatively high, the temporary hardness of cooling water can be designed to be less than 40 mg/l （CaO）, and it is recommended to use closed circuit soft - water-cooling system; in regions where the temporary hardness of raw water is relatively low, the temporary hardness of cooling water can be designed to be around 80 mg/l （CaO）, and it is recommended to use open circuit water-ccoling system, and make - up water is the mixture of industrial water and soft water.