某环保科技有限公司100 kt/a硫酸项目底吹吹炼炉冶炼烟气具有气量小、SO₂浓度波动大和气量不稳定的特点;设计初期从投资成本、运行成本和除雾效率、效果整体考量,决定取消作用为增加烟气停留时间、雾粒子粒径长大的增湿塔。生产实践证明,净化电除雾前取消增湿塔,对净化工段的除雾效果没有关键性影响。试生产前期没有达到期望的设计条件,但经过吹炼、制酸系统的工艺优化调整和协调融合后,稳定了操作条件,提高了粗铜产量,增加了硫酸产量。

In the 100 000 t/a sulfuric acid plant of a certain company,the smelting flue gas for bottom blow furnace has the characteristics of small gas flow,large fluctuation in SO₂ concentration and instable flow.Considering investment cost,operation cost and fog removal efficiency in initial design,the humidification tower that would be used to increase the residence time of flue gas and promote fog particle size to grow is cancelled.It has been proved by actual operation that cancelling the humidification tower before purifying the electric mist has no critical impact on the fog removal effect of the purification section.In the early stage of trial production,the expected design effects are not achieved.After performing process optimization and process fusion to the blowing and acid making systems,operation conditions are stabilized,the output of both crude copper and sulfuric acid increases.

孔波(1982-),男,学士,工程师,主要从事硫酸及烟气脱硫生产管理工作,通讯联系人,0793-5650217,kshh-2008@163.com。