超声干雾抑尘机理及其技术参数优化研究
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摘要
为改善超声波雾化效果,提高超声干雾的除尘效率,根据空气动力学、"云"物理学和斯蒂芬流输运原理,研究超声干雾抑尘机理。采用自行设计的雾流参数测定试验装置,研究压缩空气的压力(气压)、水流量等指标对超声雾化器雾化效果的影响,得出超声雾化器合理的供气压力和供水流量。选取烧结磁铁矿粉尘为呼吸性粉尘样品,在超声雾化器最佳运行条件下对其除尘效率进行测定。研究结果表明:微细水雾有利于呼吸性粉尘的捕集。超声雾化器的最佳运行条件为:气压0.35 MPa,水流量30 L/h。在此运行条件下,其对呼吸性粉尘的平均除尘效率为98.3%,最高可达98.6%。
In order to improve the ultrasonic atomization effect and effectively improve effect of ultrasonic atomization technology in respirable dust removal,the technology mechanism of dust collection by the ultrasound atomization was researched according to the aerodynamics principle,the cloud principle and of physics and the Stephen flow transport theory. By using a self-designed experimental device for measuring fog flow parameters,effects of pressure of compressed air( pressure) and volume of water on atomization result were examined and reasonable compressed air pressure and volume of water supply of ultrasonic atomizer were obtained. Sintered magnetite ore dust was taken as respirable dust samples. Dust removal efficiency of ultrasonic atomizer was measured under it's best operating conditions. The results show that fine water mist produced by the atomizer is conducive to trapping respirable dust and the optimum compressed air pressure is 0. 35 MPa and optimum volume of water is 30 L / h. The average removal efficiency of respirable dust is 98. 3%,and the maximum is up to 98. 6%.
In order to improve the ultrasonic atomization effect and effectively improve effect of ultrasonic atomization technology in respirable dust removal,the technology mechanism of dust collection by the ultrasound atomization was researched according to the aerodynamics principle,the cloud principle and of physics and the Stephen flow transport theory. By using a self-designed experimental device for measuring fog flow parameters,effects of pressure of compressed air( pressure) and volume of water on atomization result were examined and reasonable compressed air pressure and volume of water supply of ultrasonic atomizer were obtained. Sintered magnetite ore dust was taken as respirable dust samples. Dust removal efficiency of ultrasonic atomizer was measured under it's best operating conditions. The results show that fine water mist produced by the atomizer is conducive to trapping respirable dust and the optimum compressed air pressure is 0. 35 MPa and optimum volume of water is 30 L / h. The average removal efficiency of respirable dust is 98. 3%,and the maximum is up to 98. 6%.
引文
[1]阮凤鸣,徐箐璐,唐莲.某露天铁矿职业病危害控制效果评价[J].中国卫生工程学,2010,9(4):282-284.RUAN Feng-ming,XU Qing-lu,TANG Lian.Control effect of occupational hazards in open-cast iron mining[J].Chinese Journal of Public Health Engineering,2010,9(4):282-284.
[2]邹声华,李刚,李孔清.冶金行业呼吸性粉尘的喷雾净化技术研究[J].中国工程科学,2007,9(11):196-199.ZOU Sheng-hua,LI Gang,LI Kong-qing.Study on spray purification of respirable dust in metallurgical enterprise[J].Engineering Sciences,2007,9(11):196-199.
[3]吴超,李明.微颗粒黏附与清除[M].北京:冶金工业出版社,2014∶214-260.WU Chao,LI Ming.Particle adhesion and removal[M].Beijing∶Metallurgical Industry Press,2014∶214-260
[4]马素平,寇子明.喷雾降尘机理的研究[J].煤炭学报,2005,30(3):298-300.MA Su-ping,KOU Zi-ming.Study on mechanism of reducing dust by spray[J].Journal of China Coal Society,2005,30(3):298-300.
[5]吴超,欧家才,周勃,等.湿润剂溶液在硫化矿矿尘中的反向湿润行为研究[J].安全与环境学报,2005,5(4):65-68.WU Chao,OU Jia-cai,ZHOU Bo,et al.Investigation on wetting behavior of wetting agents to dust of sulfide ores by up-ward capillary seepage method[J].Journal of Safety and Environment,2005,5(4):65-68.
[6]荆德吉,葛少成,刘剑.基于欧拉-欧拉模型的落煤塔控尘技术研究[J].中国安全科学学报,2012,22(10):126-132.JING De-ji,GE Shao-cheng,LIU Jian.Study on control technology of dust at coal drop tower based on eulerian-eulerian model[J].China Safety Science Journal,2012,22(10):126-132.
[7]陈曦,葛少成,葛斐,等.针对矿山细粉尘的新型微雾旋风除尘系统[J].中国安全科学学报,2014,24(9):122-127.CHEN Xi,GE Shao-cheng,GE Fei,et al.Study on novel micro-fog and cyclonic system for removing fine particulate[J].China Safety Science Journal,2014,24(9):122-127.
[8]葛亚勤.超声波雾化对微细粉尘过滤性能影响研究[D].北京:北京化工大学,2010.GE Ya-qin.The effect of ultrasonic atomization on behavior of fine dust in air-filtration process[D].Beijing:Beijing University of Chemical Technology,2010.
[9]徐立成,孙和平.微细水雾捕尘理论与应用[J].通风除尘,1996(4):16-18.XU Li-cheng,SUN He-ping.Theory and application of dedusting technology by fine water spray[J].Ventilation and Dust Removal,1996(4):16-18.
[10]徐立成,孙和平.超声雾化抑尘器及其应用[J].工业安全与防尘,1995,21(5):13-15.XU Li-cheng,SUN He-ping.Ultrasonic atomization dust collector and its application[J].Industrial Safety and Dust Control,1995,21(5):13-15.
[11]胡传斌,张文仲,刘东.超声雾化除尘装置在鲍店煤矿选煤厂的研制与应用[J].选煤技术,2007(4):48-49.HU Chuan-bin,ZHANG Wen-zhong,LIU Dong.Development and application of ultrasonic atomization precipitator in coal preparation plant of Baodian coal mine[J].Coal Preparation Technology,2007(4):48-49.
[12]陈秀厅,徐立成.超声雾化抑尘技术在选厂除尘中的应用[J].化工矿山技术,1998,27(1):22-24.CHEN Xiu-ting,XU Li-cheng.Application of ultrasonic nebulization technique in dust removing in mineral processing plant[J].Chemical Mining Technology,1998,27(1):22-24.
[13]李冠文,陈凡植,王军,等.超声波雾化除尘的可行性分析[J].工业安全与环保,2008,34(5):20-22.LI Guan-wen,CHEN Fan-zhi,WANG Jun,et al.The feasibility analysis of ultrasonic of atomization technique in dust removal[J].Industrial Safety and Environmental Protection,2008,34(5):20-22.
[14]李刚.高效水雾降尘技术的实验研究及工程应用[D].湘潭:湖南科技大学,2009.LI Gang.Experimental research and engineering application on the efficient water spraying dust-settling technology[D].Xiangtan∶Hunan University of Science and Technology,2009.
[15]马素平,寇子明.喷雾降尘效率及喷雾参数匹配研究[J].中国安全科学学报,2006,16(5):84-88.MA Su-ping,KOU Zi-ming.Study on efficiency of dust suppression by mist spray and its matched parameters[J].China Safety Science Journal,2006,16(5):84-88.
[2]邹声华,李刚,李孔清.冶金行业呼吸性粉尘的喷雾净化技术研究[J].中国工程科学,2007,9(11):196-199.ZOU Sheng-hua,LI Gang,LI Kong-qing.Study on spray purification of respirable dust in metallurgical enterprise[J].Engineering Sciences,2007,9(11):196-199.
[3]吴超,李明.微颗粒黏附与清除[M].北京:冶金工业出版社,2014∶214-260.WU Chao,LI Ming.Particle adhesion and removal[M].Beijing∶Metallurgical Industry Press,2014∶214-260
[4]马素平,寇子明.喷雾降尘机理的研究[J].煤炭学报,2005,30(3):298-300.MA Su-ping,KOU Zi-ming.Study on mechanism of reducing dust by spray[J].Journal of China Coal Society,2005,30(3):298-300.
[5]吴超,欧家才,周勃,等.湿润剂溶液在硫化矿矿尘中的反向湿润行为研究[J].安全与环境学报,2005,5(4):65-68.WU Chao,OU Jia-cai,ZHOU Bo,et al.Investigation on wetting behavior of wetting agents to dust of sulfide ores by up-ward capillary seepage method[J].Journal of Safety and Environment,2005,5(4):65-68.
[6]荆德吉,葛少成,刘剑.基于欧拉-欧拉模型的落煤塔控尘技术研究[J].中国安全科学学报,2012,22(10):126-132.JING De-ji,GE Shao-cheng,LIU Jian.Study on control technology of dust at coal drop tower based on eulerian-eulerian model[J].China Safety Science Journal,2012,22(10):126-132.
[7]陈曦,葛少成,葛斐,等.针对矿山细粉尘的新型微雾旋风除尘系统[J].中国安全科学学报,2014,24(9):122-127.CHEN Xi,GE Shao-cheng,GE Fei,et al.Study on novel micro-fog and cyclonic system for removing fine particulate[J].China Safety Science Journal,2014,24(9):122-127.
[8]葛亚勤.超声波雾化对微细粉尘过滤性能影响研究[D].北京:北京化工大学,2010.GE Ya-qin.The effect of ultrasonic atomization on behavior of fine dust in air-filtration process[D].Beijing:Beijing University of Chemical Technology,2010.
[9]徐立成,孙和平.微细水雾捕尘理论与应用[J].通风除尘,1996(4):16-18.XU Li-cheng,SUN He-ping.Theory and application of dedusting technology by fine water spray[J].Ventilation and Dust Removal,1996(4):16-18.
[10]徐立成,孙和平.超声雾化抑尘器及其应用[J].工业安全与防尘,1995,21(5):13-15.XU Li-cheng,SUN He-ping.Ultrasonic atomization dust collector and its application[J].Industrial Safety and Dust Control,1995,21(5):13-15.
[11]胡传斌,张文仲,刘东.超声雾化除尘装置在鲍店煤矿选煤厂的研制与应用[J].选煤技术,2007(4):48-49.HU Chuan-bin,ZHANG Wen-zhong,LIU Dong.Development and application of ultrasonic atomization precipitator in coal preparation plant of Baodian coal mine[J].Coal Preparation Technology,2007(4):48-49.
[12]陈秀厅,徐立成.超声雾化抑尘技术在选厂除尘中的应用[J].化工矿山技术,1998,27(1):22-24.CHEN Xiu-ting,XU Li-cheng.Application of ultrasonic nebulization technique in dust removing in mineral processing plant[J].Chemical Mining Technology,1998,27(1):22-24.
[13]李冠文,陈凡植,王军,等.超声波雾化除尘的可行性分析[J].工业安全与环保,2008,34(5):20-22.LI Guan-wen,CHEN Fan-zhi,WANG Jun,et al.The feasibility analysis of ultrasonic of atomization technique in dust removal[J].Industrial Safety and Environmental Protection,2008,34(5):20-22.
[14]李刚.高效水雾降尘技术的实验研究及工程应用[D].湘潭:湖南科技大学,2009.LI Gang.Experimental research and engineering application on the efficient water spraying dust-settling technology[D].Xiangtan∶Hunan University of Science and Technology,2009.
[15]马素平,寇子明.喷雾降尘效率及喷雾参数匹配研究[J].中国安全科学学报,2006,16(5):84-88.MA Su-ping,KOU Zi-ming.Study on efficiency of dust suppression by mist spray and its matched parameters[J].China Safety Science Journal,2006,16(5):84-88.
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