| Numerical calculation of thermal field and heat transfer coefficient for 160 kA aluminum reduction cell |
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| 作者姓名： | 冯乃祥 梁芳惠 孙阳 彭建平 冷正旭 谢青松 |
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| 作者单位： | School of Materials and Metallurgy，School of Materials and Metallurgy，School of Materials and Metallurgy，School of Materials and Metallurgy，Guizhou Aluminum Smelter，Guizhou Aluminum Smelter Northeastern University，Shenyang 110004，China，Northeastern University，Shenyang 110004，China，Northeastern University，Shenyang 110004，China，Northeastern University，Shenyang 110004，China，Guiyang 550014，China，Guiyang 550014，China |
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| 摘 要： | 1 INTRODUCTIONThetechnologiesofthe 16 0kA prebakedanodealuminumreductioncellofGuizhouAluminumSmelter,China ,wereintroducedfromJapaninthe1970 s .Ithasbeenfoundintherealoperationthatthetargetindexesarenotasgoodasexpected .Forexample ,thecurrentefficiencyislowerthan 88%andtheDCpowerconsumptionforproducingAlishigherthan 14 0 0 0kWh/t .Meanwhile ,becauseofthebiggersidechannel,sideledgecannotbefullyformed .Itisanalyzedthatpoorbusbararrangementsandinnerliningstructureaswellasoperationallha…
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Numerical calculation of thermal field and heat transfer coefficient for 160 kA aluminum reduction cell |
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| FENG Nai xiang ,LIANG Fang hui ,SUN Yang ,PENG Jian ping ,LENG Zheng xu ,XIE Qing song.Numerical calculation of thermal field and heat transfer coefficient for 160 kA aluminum reduction cell[J].Transactions of Nonferrous Metals Society of China,2003,13(4). |
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| Authors: | FENG Nai xiang LIANG Fang hui SUN Yang PENG Jian ping LENG Zheng xu XIE Qing song |
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| Affiliation: | FENG Nai xiang 1,LIANG Fang hui 1,SUN Yang 1,PENG Jian ping 1,LENG Zheng xu 2,XIE Qing song 2 |
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| Abstract: | The principle of thermal flux being constant in heat flow tube and the principle of heat balance were applied to analyze and calculate the steady state thermal field and the electrolyte ledge heat transfer coefficient of aluminum reduction cell by finite element method. The calculated results show that the melt ledge heat transfer coefficient in the 160kA prebaked anode aluminum reduction cell of Guizhou Aluminum Smelter is higher than that of other cells of the same current. It is also found that the electrolyte and metal flow much faster, which may be the results of poor bus bar arrangements. Meanwhile, the calculated results of melt ledge heat transfer coefficient by heat flow tube method are almost in full agreement with the former works. This verifies the applicability of this method. |
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| Keywords: | aluminum reduction cell heat current tube finite element method heat transfer heat balance |
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