低压脉冲布袋处理回转窑低温低硫含油烟气技术研究  

Research on Low-pressure Pulsed Cloth Bags Treatment of Low Temperature and Low Sulfur Oil Flue Gas of Rotary Kilns

作　　者：张鹏 杜光焱 Zhang Peng;Du Guang-yan

机构地区：[1]金川集团铜业有限公司 [2]镍钴资源综合利用国家重点实验室 [3]金川镍钴研究设计院

出　　处：《金川科技》2021年第1期31-35,共5页Jinchuan Science and Technology

摘　　要：现有两台中3.6×52M回转窑,使用重油、粉煤作为燃料,收尘设施为旋涡收尘器加电收尘器。回转窑正常生产时,进入电收尘器的烟气温度仅能达到140℃~160℃,无法满足设计所需的最低180℃的要求。导致电收尘器内部结构腐蚀,漏风率达到20%、收尘效率仅为80%,出口含尘超标,给后续制酸系统造成困难。通过技术改造,将电收尘改造为布袋收尘器,收尘效率提高至99.95%,出口含尘降低至30mg/Nm^(3),系统漏风率降低至3%,保障了系统稳定运行。There are twoφ3.6×52M rotary kilns,using heavy oil and pulverized coal as fuel,dust collection facilities for the vor-tex dust collector and electric dust collctor.When the rotary kiln is in normal production,the temperature of flue gas entering the elec-tric dust collector can only reach 140℃~160℃,which cannot meet the minimum requirement of 180℃required by the design.As a result,the intermnal structure of the electric dust colletor is corroding,the air leakage rate reaches 20%,the dust collection efficiency is only 80%,and the dust content in the export exceeds the standard,causing difficulties to the subsequent acid production system.Through technical research,the electrie dust collector is transformed into a cloth bag dust collector.The dust collecting eficiency is increased to 99.95%,the dust content of the export is reduced to 30mg/Nm^(3),and the air leakage rate of the system is reduced to 3%,which ensures the stability of the system.

关 键 词：烟气 腐蚀 漏风率 收尘效率 

分 类 号：TQ1[化学工程]