提高感应炉锌阴极片熔化直收率的研究  

Study on Improving Zinc-cathode Melting Recovery in Induction Furnace

作　　者：鲁志昂 汪洋洋 何世科[2] 艾元方[2] 

机构地区：[1]株洲火炬工业炉有限责任公司,湖南株洲412005 [2]中南大学能源科学与工程学院,长沙410083

出　　处：《有色金属（冶炼部分）》2012年第10期60-62,共3页Nonferrous Metals（Extractive Metallurgy)

摘　　要：针对锌阴极片在工频感应电炉熔化中锌液氧化导致锌直收率降低的问题,对锌直收率和氧化率随炉膛气相空间氧气浓度变化的规律进行研究。结果表明,炉膛内气相空间填注氮气可提高锌直收率;在470～490℃,锌液上方气相空间填注氮气到含氧浓度降低至5%以下,锌直收率可提高到98.08%～98.21%,比常规不填充氮气锌熔铸的锌直收率高出1.15～2.15个百分点,且无需考虑NOx生成问题。The variational pattern of zinc recovery and oxidation rate vs. the oxygen concentration in the hearth space of induction furnace were investigated aimed at the lower zinc recovery duo to the oxidation of melted zinc liquid. The results show that the nitrogen injection into the gas-phase space of the electric fur-nace can increase zinc recovery to 98.08%-98.21%, which is 1.15-2.15 percentage point higher than that of traditional zinc casting furnace without nitrogen injection, under the conditions of 420-520 ℃ and oxygen content in the hearth space less than 5 percent, and no NOx pollution need to be taken into ac-count.

关 键 词：工频电炉 锌阴极片 熔铸 直收率 氧化率 

分 类 号：TF813[冶金工程—有色金属冶金]