湿法烟气脱硫系统石膏脱水研究
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摘要
针对某电厂石灰石-石膏湿法烟气脱硫工艺中石膏无法正常脱水的问题,分析了运行工况、运行管理、设备出力、浆液品质等对石膏脱水的影响,并对各种情况提出了相应的处理措施,保障了火电厂脱硫系统安全运行、环保达标,可为其他电厂在运行过程中的类似问题处理提供参考。
To solve the problem that the gypsum in a limestone-gypsum wet flue gas desulphurization(WFGD)system could not be well dehydrated during operation process,the effects of following factors on the dehydration of gypsum were analyzed,such as the operating condition,operation management,equipment output and slurry quality,etc.By taking corresponding countermeasures for different conditions,the WFGD system is now able to operate safely,with pollutants emission of the unit satisfying relevant standard,which may serves as a reference for other thermal power plants in dealing with similar circumstances.
To solve the problem that the gypsum in a limestone-gypsum wet flue gas desulphurization(WFGD)system could not be well dehydrated during operation process,the effects of following factors on the dehydration of gypsum were analyzed,such as the operating condition,operation management,equipment output and slurry quality,etc.By taking corresponding countermeasures for different conditions,the WFGD system is now able to operate safely,with pollutants emission of the unit satisfying relevant standard,which may serves as a reference for other thermal power plants in dealing with similar circumstances.
引文
[1]梁磊.火电厂脱硫系统石膏脱水困难案例分析及对策[J].中国电力,2013,46(1):99-106.
[2]龙辉,钟明慧.影响600 MW机组湿法烟气脱硫装置厂用电率主要因素分析[J].中国电力,2006,39(2):74-77.
[3]钟毅,高翔,王惠挺,等.基于CFD技术的湿法烟气脱硫系统性能优化[J].中国电机工程学报,2008,28(32):18-23.
[4]蓝敏星.脱硫鼓泡塔pH值及液位对脱硫效率提升的试验研究[J].中国电力,2015,48(7):115-118.
[5]郝春燕.湿法脱硫石膏脱水效率影响因素及处理方法的探讨[J].中国科技纵横,2014(15):156-157.
[6]朱杰,许月阳,姜岸,等.超低排放下不同湿法脱硫协同控制颗粒物性能测试与研究[J].中国电力,2017,50(1):168-172.
[7]张山山,陈光,曾庆猛.火电厂湿法脱硫石膏含水率超标原因分析及控制建议[J].发电与空调,2015,36(4):45-47.
[2]龙辉,钟明慧.影响600 MW机组湿法烟气脱硫装置厂用电率主要因素分析[J].中国电力,2006,39(2):74-77.
[3]钟毅,高翔,王惠挺,等.基于CFD技术的湿法烟气脱硫系统性能优化[J].中国电机工程学报,2008,28(32):18-23.
[4]蓝敏星.脱硫鼓泡塔pH值及液位对脱硫效率提升的试验研究[J].中国电力,2015,48(7):115-118.
[5]郝春燕.湿法脱硫石膏脱水效率影响因素及处理方法的探讨[J].中国科技纵横,2014(15):156-157.
[6]朱杰,许月阳,姜岸,等.超低排放下不同湿法脱硫协同控制颗粒物性能测试与研究[J].中国电力,2017,50(1):168-172.
[7]张山山,陈光,曾庆猛.火电厂湿法脱硫石膏含水率超标原因分析及控制建议[J].发电与空调,2015,36(4):45-47.