摘要
从连铸喷雾冷却强度的控制因素入手,建立了冷却强度与水流密度、冲击速度、雾滴尺寸间的关系式。通过测定气水比对上述参数的影响,进而利用该关系式来计算冷却强度。结果表明,气水喷雾冷却过程存在最佳气水比值,但最佳气水比不是固定不变的,它随着水压的增加而减小。最佳气水比的确定对降低连铸二冷能耗具有重要的意义。
cooling efficiency in the continuous casting. Usually it could be got from experiments or the experience,but it would take high cost,long period and hard difficulty. In this paper,the factors for controlling intensity were analyzed. The relevant equation between cooling intensity and water rate of flow,impacting velocity,droplet size was built. And the cooling intensity was calculated by the equation. The results show that there is a optimal air to water ratio,yet it is variable and decease with water pressure increase. It is very significant to reduce the energy consumption of second cooling in continuous casting.
出处
《钢铁钒钛》
CAS
北大核心
2004年第2期49-51,70,共4页
Iron Steel Vanadium Titanium
基金
国家自然科学基金资助项目(50174021)。
关键词
连铸
冷却强度
气水比
喷雾冷却
能耗
continuous casting
cooling intensity
air to water ratio
misting cooling
energy consumption
