ANALYSIS ON THE INFLUENCE OF ACID TAIL GAS CLOGGING ON ACID PRODUCTION PROCESS IN DESULFURIZATION AND DENITRIFICATION
High dust content of flue gas is easy to cause equipment scale and increase resistance,and pipeline is easy to block.Once the pipeline is blocked,it needs to stop for maintenance,resulting in production stagnation and cost increase.The gas containing dust removal ash once enters the acid production system will cause blockage to the pipeline,which has a serious impact on production,and also brings great inconvenience to the cleaning work.This paper introduces the acid production process of 360 m2 sintering machine of Hansteel,and the problem of low production yield of finished acid encountered in practice.The author,through hypothesis and actual investigation,found that the acid production tail pipe was partially blocked,and the airflow was not smooth.This problem has never occurred in the previous maintenance,and the author tried various methods to solve it by increasing the bypass pipe,avoiding shutdown inspection and reducing costs.In the future,we should strengthen the control of flue gas impurities and reduce the content of dust removal ash in the pipeline,which is conducive to the stable production and stable operation of the equipment.
acid productiondust removal ashdesulfurization and denitrification
万方数据
维普
