一种氨法烟气脱硫循环液优化平衡装置
|
摘要
基于脱硫塔升气帽漏液问题,研究了一种氨法烟气脱硫循环液优化平衡装置。本装置的漏液收集器设置在脱硫塔浓缩段上部,且位于升气帽正下方,漏液收集器下部通过弯管与平衡回流管线连接,升气帽部位漏液通过平衡装置回流到吸收剂循环系统。这就使吸收剂循环槽和(NH_4)_2SO_4循环槽液位保持正常平衡,避免因吸收剂和(NH_4)_2SO_4循环液量失衡而导致脱硫系统生产紊乱。减少了吸收剂循环槽和(NH_4)_2SO_4循环槽液位不正常现象的发生,确保了浓缩段产出的(NH_4)_2SO_4料浆品级。
We designed an optimized balancing device for circulating fluid of ammonia flue gas desulfurization to solve the leakage of gas cap of desulfurization tower. The leakage collector of the device was set above the concentration section of the flue gas desulfurization tower and below the gas cap. The bottom of leakage collector was connected with the balance return line through the bent pipe. The leakage from the gas cap was re-circulated to the absorbent circulation system through the balancing device. Therefore,the liquid level of absorbent circulating tank and ammonium sulfate circulating tank kept the normal balance,avoiding the disorder of desulfurization system caused by imbalance of liquid level. The phenomenon of abnormal liquid level in the absorbent circulation tank and ammonium sulfate circulating tank reduced,which ensures the quality of ammonium sulfate slurry produced in the concentration section.
We designed an optimized balancing device for circulating fluid of ammonia flue gas desulfurization to solve the leakage of gas cap of desulfurization tower. The leakage collector of the device was set above the concentration section of the flue gas desulfurization tower and below the gas cap. The bottom of leakage collector was connected with the balance return line through the bent pipe. The leakage from the gas cap was re-circulated to the absorbent circulation system through the balancing device. Therefore,the liquid level of absorbent circulating tank and ammonium sulfate circulating tank kept the normal balance,avoiding the disorder of desulfurization system caused by imbalance of liquid level. The phenomenon of abnormal liquid level in the absorbent circulation tank and ammonium sulfate circulating tank reduced,which ensures the quality of ammonium sulfate slurry produced in the concentration section.
引文
[1]葛能强,邵永春.湿式氨法脱硫工艺及应用[J].硫酸工业,2006(6):10-15.
[2]武春锦,吕武华,梅毅,等.湿法烟气脱硫技术及运行经济性分析[J].化工进展,2015,34(12):4368-4374.
[3]杨春和,李贤.氨法烟气脱硫制亚硫酸氢铵过程模拟优化[J].现代化工,2017,37(3):199-202.
[4]肖保正.氨法脱硫装置经验点滴[J].硫酸工业,2008(1):43-45.
[5]史永永,李海洋,张慧,等.氨法烟气脱硫工艺过程模拟与优化[J].化学工程,2012(11):68-73.
[2]武春锦,吕武华,梅毅,等.湿法烟气脱硫技术及运行经济性分析[J].化工进展,2015,34(12):4368-4374.
[3]杨春和,李贤.氨法烟气脱硫制亚硫酸氢铵过程模拟优化[J].现代化工,2017,37(3):199-202.
[4]肖保正.氨法脱硫装置经验点滴[J].硫酸工业,2008(1):43-45.
[5]史永永,李海洋,张慧,等.氨法烟气脱硫工艺过程模拟与优化[J].化学工程,2012(11):68-73.