喷淋塔除酸效果的影响因素分析及优化措施  

Analysis of Influence Factors and Optimization Measures of Effect of Acid Gas Removal via Spray Tower

作　　者：肖宇 苏威 徐小龙 李四清 伍京川 谢建 XIAO Yu;SU Wei;XU Xiaolong;LI Siqing;WU Jingchuang;XIE Jian(CISDI Engineering Co.Ltd.,Chongqing 401122,China;Baosteel Zhanjiang Iron&Steel Co.Ltd.,Zhanjiang 524003,China;CISDI R&D Co.Ltd.,Chongqing 401120,China)

机构地区：[1]中冶赛迪工程技术股份有限公司,重庆401120 [2]宝钢湛江钢铁有限公司,广东湛江524003 [3]中冶赛迪技术研究中心有限公司,重庆401120

出　　处：《工业加热》2022年第7期59-62,共4页Industrial Heating

摘　　要：针对目前部分钢铁企业喷淋塔除酸效率低,引起的煤气管道及设备腐蚀快速失效等问题,从喷淋除酸原理出发,分析得到3个主要影响因素:气液接触面积、煤气停留时间和碱液浓度。对2#高炉喷淋塔进行优化:通过新增喷淋层、双介质喷枪和过滤网等一系列措施,提高了除酸效率,使煤气管网冷凝水pH平均值从3.7升高至5.5,并有效抑制了供水管道和喷嘴发生堵塞,此措施有望在钢铁企业中得到推广和应用。In view of the low efficiency of acid gas removal via spray towers in iron and steel enterprises,it leads to rapid corrosion of gas pipe⁃lines and equipment and obtain three main influencing factors:gas⁃liquid contact area,gas residence time and alkali concentration by analy⁃sing the acid gas removal theory via spraying.We have optimized Zhanjiang Steel 2#blast furnace spray tower with adding new spray layer,du⁃al⁃medium spray gun and filter screen.The experiment results show that this optimization measures can significantly increase the efficiency of acid gas removal,and suppress the blocking condition of water supplying pipeline and nozzle,meanwhile the average pH of the condensate wa⁃ter of the gaspipe network has increased from 3.7 to 5.5,which is expected to be promoted and applied in steel enterprises.

关 键 词：喷淋塔 除酸效率 气液接触面积 煤气停留时间 碱液浓度 

分 类 号：TF089[冶金工程—冶金物理化学]