氧气浓度分析技术在有色冶炼烟气处理系统中的应用  

Application of Oxygen Concentration Analysis Technique in Non-ferrous Smelting Off-gas Treatment System

作　　者：方项林 苏江峰 吕鑫宽 申健 FANG Xiang-lin;SU Jiang-feng;LV Xin-kuan;SHEN Jian

机构地区：[1]国投金城冶金有限责任公司,河南灵宝472500

出　　处：《有色冶金节能》2022年第2期49-52,共4页Energy Saving of Nonferrous Metallurgy

摘　　要：某公司火法熔炼收尘系统在熔炼余热锅炉出口与熔炼电除尘器出口分别安装两台氧气浓度在线分析设备。本文分析氧气浓度对电除尘器白烟尘含硫量、排灰及电场运行、收砷器以及废酸产生的影响,介绍了氧气浓度检测分析仪的应用。生产实践表明,通过熔炼白烟尘颜色及氧气浓度检测的数据来精准调整工艺参数,可保证熔炼电除尘器收集的白烟尘含硫量稳定,将电除尘器电压控制在最优范围内,使收尘效率得到明显提升,有效提高后续收砷工段收集的烟灰的纯度,同时有效降低制酸系统废酸的产生,减少废酸处理成本。Two on-line oxygen concentration analyzers were installed respectively at the waste heat boiler outlet and the electrostatic precipitator(ESP)outlet of a company s smelting dust collection system.In this paper,the influence of oxygen concentration on the sulfur content in the white dust collected by the ESP,the dust discharge and electric field operation of the ESP,the efficiency of arsenic recoverer and the amount of waste acid resulting from non-ferrous smelting were analyzed;the application of oxygen concentration analyzers was introduced.Production practice shows that the grayness of white dust and detected oxygen concentration data can be based on to realize accurate adjustment of process parameters,guarantee a stable sulfur content in the white dust collected by the ESP,and control the ESP voltage within an optimal range.As a result,the dust collection efficiency is improved significantly,the purity of the dust collected in downstream arsenic recovery process is increased efficiently,and waste acid amount from the acid-making system and waste acid treatment cost are reduced.

关 键 词：氧气浓度在线分析仪 电除尘器 白烟尘 收尘效率 收砷器 三氧化硫 

分 类 号：TF811[冶金工程—有色金属冶金] X758[环境科学与工程—环境工程]