铜冶炼烟气脱硝工艺源头控制及药剂用量研究  

Research on Source Control and Agent Dosage of Copper Smelting Smoke Denitration Process

作　　者：邱发强 QIU Faqiang(Zijin Copper Co.,Ltd.,Shanghang,Fujian 364200,China;Fujian Key Laboratory of Copper Green Production and Associated Resources Comprehensive Utilization,Shanghang,Fujian 364200,China)

机构地区：[1]紫金铜业有限公司,福建上杭364200 [2]福建省铜绿色生产及伴生资源综合利用重点实验室,福建上杭364200

出　　处：《有色冶金设计与研究》2023年第6期14-18,共5页Nonferrous Metals Engineering & Research

摘　　要：福建某铜冶炼企业稀贵厂冶炼过程排放氮氧化物质量浓度较高,脱硝使用的药剂用量大、费用高,对成本管控有较大影响。针对该情况,分析了氮氧化物生成机理及影响因素,组织了两组试验,分别针对氧油比以及吹炼压缩风量对氮氧化物形成的影响进行了研究,并对脱硝药剂的使用情况进行优化。试验证明,氧油比为1.6∶1时,氮氧化物质量浓度最低;在可造渣的前提下,吹炼风量为350 m^(3)/h时,氮氧化物控制效果最优;当将氮氧化物质量浓度控制在1500 mg/m^(3)以内是,脱硝药剂添加量可显著降低。The quality concentration of nitrogen oxides emitted during the smelting process of a rare and precious copper smelting enterprise in Fujian is relatively high,and the amount of reagents used for denitrification is large and costly,which has a significant impact on cost control.In response to this situation,the mechanism and influencing factors of nitrogen oxide formation were analyzed,and two sets of experiments were conducted.The effects of oxygen oil ratio and blowing compressed air volume on nitrogen oxide formation were studied,and the use of denitrification agents was optimized.Experiments have shown that when the oxygen to oil ratio is 1.6,the mass concentration of nitrogen oxides is the lowest;under the premise of slagging,the nitrogen oxide control effect is optimal when the blowing air volume is 350 m^(3)/h;when the mass concentration of nitrogen oxides is controlled within 1500 mg/m^(3),the amount of denitrification agent added can be significantly reduced.

关 键 词：铜冶炼 氮氧化物 低温脱硝 铜阳极泥 氧油比 脱硝药剂 

分 类 号：TF808[冶金工程—有色金属冶金]