255KA预焙阳极铝电解槽设计

辽宁科技学院（2013届）本科毕业设计题目：255KA预焙阳极铝电解槽设计专题：铝电解全氟化碳减排途径研究专业：冶金工程班级：冶金BG092姓名：学号：0711109202指导教师：说明书58页，图纸2张，专题7页，译文12页辽宁科技学院本科生毕业设计（论文）第I页255KA预焙阳极铝电解槽设计摘要容量为255KA的铝电解槽设计的主要内容是铝电解槽电压的平衡计算，能量和物料平衡概算，电解槽选型、台数的计算以及产量的衡算，辅助设备选择及计算，电力制度设计及电解槽配置选择计算等工作，并且进行专题研究和外文资料的翻译工作。现代铝电解追求高效、低污染、低能耗的工艺，其发展方向是大容量、大型化、自动化程度高的预焙阳极电解槽。本设计槽体为侧部散热、底部保温型，采用通长半石墨质阴极炭块，阳极投影与阴极正对，化学防渗技术与焦粒焙烧技术，以达到延长槽寿命的目的；进电方式采用大面四点进电，以有效减少磁场干扰，保证电解槽生产平稳进行。关键词：铝电解，铝电解槽，电流效率，阳极炭块，阴极炭块辽宁科技学院本科生毕业设计（论文）第II页Designacapacityof255KAoftheprebakedanodealuminumreductioncellAbstractDesignacapacityof255KAofthealuminumreductioncell.Designarethemaincontentsofaluminumcellvoltagebalancecalculation,materialandenergybalanceestimates,cellselection,numbercomputationandoutputbalance,auxiliaryequipmentselectionandcalculation,powersystemdesign,electrolytictankconfigurationchoiceofcalculationwork.Andtoundertakespecialsubjectstudiesandforeign-languagetranslationofinformation.Inmodernaluminumelectro1ysispeoplepursuehighlyefficiency，lowpo1lutionandimbecilityenergyconsumption.Itsdevelopmentdirectionisprebakedanodecellwhichhasbigcapacity，large-sizecellstructureandhighlyautomationcontrolsystem.Thedesignedcellisside-hot-spreadingandbottom-hot-keeping,adaptinghalf-graphitecokecathode.Whosewitchiscoincidewiththeprojectionoftheanodeandchemicallyforestallingseepagetechniqueandcokepreheattechniqueprolongcell’slife．Themodeofcurrentinputisfourpointsinthebigsurfacesoastoefficientlydecreasethemagneticfielddisturbanceandaccordinglytomakethecellrunmorestably．Keywords：aluminiumelectrolysis,aluminiumelectrolysiscells,currentefficiency，Anodecarbonblock，cathodecarbonblock辽宁科技学院本科生毕业设计（论文）第III页目录绪论............................................................................................................................11铝电解生产概况........................................................................................................41.1铝电解生产概况...............................................................................................41.2电解所用原材料...............................................................................................51.2.1主原料.....................................................................................................51.2.2副原料.....................................................................................................61.2.3阳极材料.................................................................................................72铝电解槽的构造........................................................................................................82.1铝电解槽的发展...............................................................................................82.1.1铝电解槽的分类.....................................................................................92.1.2中间点式下料预焙阳极电解槽简介.....................................................92.2铝电解槽的结构.............................................................................................112.2.1阴极结构...............................................................................................112.2.2上部结构...............................................................................................122.2.3母线结构和配置...................................................................................133电解铝厂的主要技术指..........................................................................................153.1基础数据.........................................................................................................153.2单槽原铝产量.................................................................................................153.3阳极尺寸选择.................................................................................................153.4计算阳极炭块数.............................................................................................153.5计算槽膛尺寸.................................................................................................153.6计算侧壁.........................................................................................................163.7槽壳底层........................................................................................................164铝电解槽电压的平衡计算......................................................................................174.1电极压降.........................................................................................................174.2电解质压降.....................................................................................................184.3阳极效应分担压降.........................................................................................184.4阳极压降.........................................................................................................19辽宁科技学院本科生毕业设计（论文）第IV页4.5阴极压降.........................................................................................................194.6母线压降.........................................................................................................195能量和物料平衡概算..............................................................................................215.1物料平衡计算.........