(1. 中南大學(xué) 冶金與環(huán)境學(xué)院，長沙 410083；
2. 中南大學(xué) 中國有色金屬工業(yè)清潔冶金工程研究中心，長沙 410083；
3. 中南大學(xué) 資源加工與生物工程學(xué)院，長沙 410083)
摘 要: 在氧氣底吹熔煉過程中，合理的氧槍槍位是獲得良好熔煉效果的重要因素。分別對(duì)氧氣底吹爐對(duì)心異側(cè)(Ⅰ)、對(duì)心同側(cè)(Ⅱ)、非對(duì)心同側(cè)(Ⅲ) 3種不同氧槍槍位布置方式進(jìn)行數(shù)值模擬，研究(Ⅰ)、(Ⅱ)、(Ⅲ) 3種方式對(duì)熔池氣液兩相分布、熔體噴濺高度、熔池氣含率、熔池速度場和熔池流線分布等影響。結(jié)果表明：相比于(Ⅰ)、(Ⅱ) 2種方式，(Ⅲ)方式下熔體噴濺高度低，熔池波動(dòng)平穩(wěn)，熔池平均氣含率高且煙氣煙塵率低，是一種適宜的氧槍槍位布置方式，對(duì)解決生產(chǎn)過程熔體噴濺、爐體腐蝕嚴(yán)重和煙塵率高等問題有積極作用。
關(guān)鍵字: 底吹熔煉；氧槍槍位；數(shù)值模擬；氣含率；流線分布
（1. School of Metallurgy and Environment, Central South University, Changsha 410083, China;
2. Cleaner Metallurgical Engineering Research Center, Nonferrous Metal Industry of China, Changsha 410083, China;
3. School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China）
Abstract:During oxygen bottom blown smelting process, a reasonable oxygen lance layout is an important factor to obtain a better smelting effect. Three oxygen lance layouts of oxygen bottom blown furnace such as the central opposite side (Ⅰ), central same side (Ⅱ) and non-central same side (Ⅲ) were simulated. The influences of (Ⅰ), (Ⅱ) and (Ⅲ) ways on the gas-liquid phase distribution, melt splash height, gas volume fraction, bath velocity field and the streamline distribution of furnace were researched, respectively. The results show that, comparing with (Ⅰ) and (Ⅱ) ways, the melt splash height is lower and the bath fluctuates most smoothly in the (Ⅲ) way. Besides, the gas volume fraction of the bath in the (Ⅲ) way is the highest and the dust rate is low. The (Ⅲ) way is a suitable oxygen lance layout for oxygen bottom blown smelting process and has a positive effect for solving the melt splashing, furnace body erosion and high dust rate problems.
Key words: oxygen bottom blown smelting; oxygen lance layout; numerical simulation; gas volume fraction; streamline distribution
