重介质旋流器选煤技术研究进展
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摘要
由于原煤煤质的变化和多年的技术积累,重介质旋流器技术得到了快速发展,已成为选煤厂的主要分选方法。文章介绍了重介质旋流器的结构组成和基本分类,分析了其工作原理和重介悬浮液的稳定性,通过流场测试和流场模拟手段分析了重介质选煤机理,并对重介质旋流器技术存在问题和发展前景进行了分析。
In face of the challenge of variation of raw coal property,and thanks to the availability of the technologies accumulated over years,the H. M. cycloning technology has seen rapid development and has now become the primary coal preparation equipment. Following a description of the basic structural makeup,types and working principle of H. M. cyclones,the paper goes to elaborate on the stability of heavy medium suspension and the theory involved in heavy medium separation of coal through flow field test and simulation. At the end of the paper,an analysis is made of the problems encountered in the application of the technology as well as the prospect of its future development.
In face of the challenge of variation of raw coal property,and thanks to the availability of the technologies accumulated over years,the H. M. cycloning technology has seen rapid development and has now become the primary coal preparation equipment. Following a description of the basic structural makeup,types and working principle of H. M. cyclones,the paper goes to elaborate on the stability of heavy medium suspension and the theory involved in heavy medium separation of coal through flow field test and simulation. At the end of the paper,an analysis is made of the problems encountered in the application of the technology as well as the prospect of its future development.
引文
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[2]胡生根.重介质旋流器智能化系统的开发与工业性试验[J].选煤技术,2018(4):6-13.
[3] ZHENG G F,XIA W D,WU X M,et al. A study of dense-medium cyclone inner-wall abrasion based on ultrasonic phased array technology[J]. Measurement,2018,126:58-64.
[4] FAN P P,FAN M Q,LIU A. Using an axial electromagnetic field to improve the separation density of a dense medium cyclone[J]. Minerals Engineering,2015,72:87-93.
[5]中国煤炭教育协会职业教育教材编审委员会.重力选煤[M].北京:煤炭工业出版社,2013:81.
[6] NAPIER-MUNN T. The dense medium cyclone-past,present and future[J]. Minerals Engineering,2018,116:107-113.
[7]谢广元.选矿学[M].徐州:中国矿业大学出版社,2012:152-170
[8]马亭亭.磁场对重介旋流器分选密度的影响规律研究[D].太原:太原理工大学,2012.
[9]樊盼盼.重介旋流器分选密度磁调控方法及规律研究[D].太原:太原理工大学,2016.
[10]冯聪.磁场作用下外部导磁结构对重介旋流器分选效果的影响研究[D].太原:太原理工大学,2017.
[11]张成安.同轴电磁场对重介质旋流器分选效果的影响[D].太原:太原理工大学,2017.
[12]张睿.浓密旋流器对重介悬浮液性质的优化研究[D].徐州:中国矿业大学,2016.
[13]戴文杰.重介悬浮液在浓密旋流器中的浓密规律研究[D].徐州:中国矿业大学,2017.
[14]郭秀军.高分选密度重介质旋流器的研究与应用[J].煤矿机械,2017,38(1):65-66.
[15]韦鲁滨,孟丽诚,程相锋,等.重介质悬浮液流变特性研究[J].煤炭学报,2016,41(4):992-996.
[16]李大虎,程相锋,朱学帅,等.重介质悬浮液粘度预测及应用[J].煤炭工程,2016,48(11):120-123.
[17] IZERDEM D,ORHAN E C,OZCAN O,et al. Application of density tracers in a dense medium circuit:A case study[J]. Minerals Engineering,2018,121:39-46.
[18] KUANG S B,QI Z,YU A B,et al. CFD modeling and analysis of the multiphase flow and performance of dense medium cyclones[J]. Minerals Engineering,2013,62:43-54.
[19]王祥震.中煤有压再选三段重介质旋流器数值模拟研究[D].北京:煤炭科学研究总院,2017.
[20]邓建军,梁斌昌,赵建章,等.无压三产品重介质旋流器流场数值模拟及底流口参数优化[J].煤炭工程,2017,49(11):133-137.
[21]位革老,刘文礼,梁鹏飞,等.复合型煤泥旋流器流场模拟[J].煤炭学报,2013,38(1):145-149.
[22]刘峰,邵涛,罗时磊,等.无压给料三产品重介质旋流器流场的数值模拟[J].煤炭学报,2009,34(8):1115-1119.
[23]谢晶.重介质选煤工艺的应用发展与改进措施[J].山东煤炭科技,2016(8):216-217,220.