摘要
为提高阳极炉铜直收率,结合实际生产情况,在分析流程元素铜走向的基础上,分析阳极炉粗铜精炼工序铜直收率低的影响因素,针对影响铜直收率的主要因素提出相应的措施,并将措施应用于生产实践,检验措施的有效性。结果表明,阳极炉粗铜精炼过程中,元素铜的损失主要发生在扒渣及出铜过程,阳极炉渣量和中间流程物料产出量是影响阳极炉直收率的主要影响因素。回转式阳极炉传统渐进式摇炉出铜存在出铜口与溜槽高度差较大,易造成熔体喷溅,造成金属铜的损失。通过转炉-阳极炉协同控制,可减少粗铜带渣量,减少阳极炉渣量。采用滑动出铜方式,可实现一次性摇炉至极限位置出铜,从而避免熔体喷溅,降低铜出口金属铜的损失。使用刚玉尖晶石和防渗剂等制备阳极炉溜槽耐火材料,将溜槽设计成锁扣方式连接,可避免浇筑缝隙损坏造成的渗铜,提高阳极炉溜槽的使用寿命,减少铜金属损失,提升阳极炉铜直收率。工业生产实践表明,阳极炉直收率可从92%提升至95.5%,经济效益显著。
In order to improve the copper direct yield of the anode furnace,based on the actual production situation and the analysis of the copper distribution behavior,the factors resulting the low copper direct yield of the anode furnace crude copper refining process are analyzed.Corresponding measures are proposed for the main factors affecting the copper direct yield,and the effectiveness of the measures is verified through production practice.The results indicate that during the refining process of crude copper in the anode furnace,the loss of elemental copper mainly occurs in the slag removal and copper extraction processes.The amount of anode slag and the output of intermediate process materials are the main influencing factors on the direct yield of the anode furnace.The height difference between the copper outlet and the chute in the traditional progressive shaking furnace for copper production in the rotary anode furnace is significant,which can easily cause melt splashing and loss of metallic copper.Through the collaborative control of converter anode furnace,the amount of coarse copper slag can be reduced and the amount of anode furnace slag can be reduced.By using the sliding copper discharge method,it is possible to achieve one-time shaking of the furnace to the limit position for copper discharge,thereby avoiding melt splashing and reducing the loss of metal copper at the copper outlet.Using corundum spinel and anti-seepage agents to prepare refractory materials for the anode furnace chute,designing the chute to be connected in a lock buckle manner can avoid copper infiltration caused by pouring gap damage,improve the service life of the anode furnace chute,reduce copper metal loss,and improve the copper yield of the anode furnace.Industrial production practice has shown that the direct yield of the anode furnace can be increased from 92% to 95.5%,with significant economic benefits.
作者
班卿
何恩
于海波
招杨
赵思谷
BAN Qing;HE En;YU Haibo;ZHAO Yang;ZHAO Sigu(Southwest Copper Branch,Yunnan Copper Co.Ltd.,Kunming 650102,China)
出处
《矿冶》
CAS
2023年第5期88-93,共6页
Mining And Metallurgy
关键词
铜精炼
阳极炉
直收率
吹炼
协同控制
滑动出铜
耦合溜槽
copper refining
anode furnace
direct yield
blowing
collaborative control
slide out copper
coupling chute
