CAJ | 학술논문

以某钢铁厂的主沟和撇渣器为研究对象，采用三维动量守恒方程、RNG k-e湍流模型和Mixture多相流模型模拟计算主沟内速度场与主沟壁面之间距离的关系，并分析了不同出铁流量下出铁沟内流场和渣铁的分离效果。结果表明，主沟中心位置的渣铁速度明显快于壁面附近的渣铁速度；渣铁分离效果不太理想，渣中带铁量偏多，其原因是渣口位置过低；随着初始流量的增大，出铁沟内的流动混乱程度逐渐增加，渣中带铁现象加剧。
이모강철엄적주구화별사기위연구대상，채용삼유동량수항방정、RNG k-e단류모형화Mixture다상류모형모의계산주구내속도장여주구벽면지간거리적관계，병분석료불동출철류량하출철구내류장화사철적분리효과。결과표명，주구중심위치적사철속도명현쾌우벽면부근적사철속도；사철분리효과불태이상，사중대철량편다，기원인시사구위치과저；수착초시류량적증대，출철구내적류동혼란정도축점증가，사중대철현상가극。
The main trough and skimmer in a certain steel plant were selected as the objects of analysis . Three-dimensional momentum equation , RNG k-e turbulence model and Mixture multiphase flow model were used to calculate the relationship between the flow field in the main trough and the dis-tance to the main trough wall .Moreover ,the flow field and slag-metal separation efficiency under dif-ferent iron flow rates were calculated .The results show that the velocity of iron and slag in the center of the main trough is faster than that of the wall nearby ;slag-metal separation efficiency is not ideal , and slag with iron is too much due to low slag notch position ;with the initial flow rate increasing ,the flow confusion degree increases ,and the phenomenon of slag with iron is intensified .