铝用阴极炭素焙烧炉沥青烟超低排放技术  

Research and Application of Ultra-Low Emission Technology ofAsphalt Fume in Cathode Carbon Calciner for Aluminum

作　　者：陈毕贵 刘静 CHEN Bigui;LIU Jing(Sichuan Jinmei Environmental Protection Co.,Ltd.,Chengdu 610011,China;Chengdu Huifeng Intelligent Manufacturing Co.,Ltd.,Chengdu 611900,China)

机构地区：[1]四川锦美环保股份有限公司,四川成都610011 [2]成都惠锋智造科技有限公司,四川成都611900

出　　处：《绿色矿冶》2024年第4期46-49,84,共5页Sustainable Mining and Metallurgy

摘　　要：铝用阴极炭块炭素焙烧烟气成分复杂,含有大量的颗粒物、沥青烟、二氧化硫、氮氧化物等高浓度污染物。本文提出一种沥青烟超低排放技术,采用铝用阴极炭素生产原料粉作为吸附粉料,吸附后的含沥青粉料返回到车间继续作为生产原料使用。介绍了该技术的工艺流程、关键装置,并研究吸附粉料的粒径、比表面积和吸附效果。该技术在某炭素厂应用,连续6个月稳定运行,实现危废零排放,且未出现管道堵塞、糊袋等现象,改造后焙烧烟气中颗粒物浓度由15.9 mg/m^(3)降至1.7 mg/m^(3),二氧化硫浓度由96.0 mg/m^(3)降至13.0 mg/m^(3),沥青烟排放浓度由33.5 mg/m^(3)降至12.8 mg/m^(3),烟气处理效果较好。The flue gas composition of cathode carbon block carbon roasting for aluminum is complex,which contains a large number of high concentration pollutants such as particulate matter,asphalt fume,sulfur dioxide and nitrogen oxides.In this paper,an ultra-low emission technology of asphalt fume was proposed.The raw material powder produced by cathode carbon for aluminum was used as the adsorption powder.The adsorbed asphalt powder was returned to the workshop to continue to be used as the production raw material.The process flow and key equipment of the technology were introduced,and the particle size,specific surface area and adsorption effect of the adsorption powder were studied.The technology was applied in a carbon plant and operated stably for 6 months.Using this technology,zero emission of hazardous waste was achieved,and there was no pipeline blockage,paste bag and other phenomena.After the transformation,the concentration of particulate matter in the roasting flue gas decreased from 15.9 mg/m^(3) to 1.7 mg/m^(3),the concentration of sulfur dioxide decreased from 96.0 mg/m^(3) to 13 mg/m^(3),and the emission concentration of asphalt smoke decreased from^(3)3.5 mg/m^(3) to 12.8 mg/m^(3).The flue gas treatment effect was good.

关 键 词：沥青烟 超低排放 炭素 焙烧炉 吸附粉料 

分 类 号：X701[环境科学与工程—环境工程]