无蒸汽负压蒸氨工艺的研究与应用  

Research and Application of No Steam and Negative Pressure Ammonia Distillation Process

作　　者：祝仰勇[1] 宁述芹[1] 王贺红[1] 张顺贤[1] 叶冰 

机构地区：[1]济钢集团有限公司,山东济南250101 [2]山东钢铁集团有限公司,山东济南250014

出　　处：《山东冶金》2012年第5期49-50,共2页Shandong Metallurgy

摘　　要：济钢通过重新设计6#、7#焦炉负压蒸氨工艺流程,改造蒸氨塔,增加稳定的真空系统,选择不同的设备材质,改进加碱工艺,增加尾气回收利用装置等改造措施,实现了无蒸汽负压蒸氨,同时降低了煤气消耗,加碱负压蒸氨废水水质达到了常压蒸氨的要求,尾气实现了全部回收。By redesigning the negative pressure ammonia distillation process, transforming the ammonia distillation tower, increasing the stable vacuum system, selecting different device material, improving the process of adding alkali, adding tail gas recycling device and other reform measures, no steam and negative pressure ammonia distillation was achieved in No.6 and No.7 coke ovens, but also the consumption of coal gas was reduced. The quality of adding alkali negative pressure evaporation ammonia water achieved the requirements of atmospheric pressure ammonia distillation and realized the recovery of all tail gas.

关 键 词：负压蒸氨 蒸汽 蒸氨塔 尾气回收 

分 类 号：X703[环境科学与工程—环境工程]