微波加热路径对硬岩破碎效果影响试验研究

doi:10.13722/j.cnki.jrme.2016.1229

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Abstract Different heating paths produce the different heating effects. The power and the heating time are the important parameters influencing the rock fragmentation. The microwave heating tests were conducted to the cubic and cylindrical basalt samples under three different heating paths and the P-wave velocity and UCS were measured before and after the microwave treatment. The sample burst into fragments when the thermal stress within the sample exceeds the ultimate strength of the rock. The sample was largely melt when the temperature in the sample exceeded the melting point. When a high microwave power was applied，the sample burst into fragments in shorter time and consumed low energy. The P-wave velocity and UCS had a significant reduction before the sample burst. The higher the power，the shorter the burst time and the faster the strength reduction. Therefore，the high power microwave can be used in rock fragmentation or assisted mechanical rock breakage with significantly decrease in energy consumption.

Key words： rock mechanics microwave-assisted rock fragmentation heating path hard rock thermal stress strength reduction

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	Articles by authors
	LI Yuanhui
	LU Gaoming
	FENG Xiating
	ZHANG Xiwei

Cite this article:

LI Yuanhui,LU Gaoming,FENG Xiating, et al. The influence of heating path on the effect of hard rock fragmentation using microwave assisted method[J]. , 2017, 36(6): 1460-1468.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2016.1229 OR https://rockmech.whrsm.ac.cn/EN/Y2017/V36/I6/1460

[1]	徐小荷，余静. 岩石破碎学[M]. 北京：煤炭工业出版社，1984：1-388.(XU Xiaohe，YU Jing. Rock fragmentation[M]. Beijing：Coal Industry Press，1984：1-388.(in Chinese)) " target="_blank">
[2]	李夕兵，周子龙，王卫华. 岩石破碎工程发展现状与展望[R]. 北京：[s. n.]，2010.(LI Xibing，ZHOU Zilong，WANG Weihua. The status and prospect of development in rock fargmentation engineering[R]. Beijing：[s. n.]，2010.(in Chinese)) " target="_blank">
[3]	徐小荷. 试论采矿工程的新学科——岩石破碎学[J]. 有色金属，1980，(6)：39-42.(XU Xiaohe. On the new subject of mining engineering-rock fragmentation[J]. Nonferrous Metals，1980，(6)：39-42.(in Chinese)) " target="_blank">
[4]	卢高明，李元辉，HASSANI F，等. 微波辅助机械破岩试验和理论研究进展[J]. 岩土工程学报，2016，38(8)：1 497-1 506.(LU Gaoming，LI Yuanhui，HASSANI F，et al. Review of theoretical and experimental studies on mechanical rock fragmentation using microwave-assisted approach[J]. Chinese Journal of Geotechnical Engineering，2016，38(8)：1 497-1 506.(in Chinese))
[5]	KINGMAN S W，ROWSON N A. Microwave treatment of minerals—a review[J]. Minerals Engineering，1998，11(11)：1 081-1 087. " target="_blank">
[6]	KINGMAN S W，CORFIELF G M，ROWSON N A. Effects of microwave radiation upon the mineralogy and magnetic processing of a massive Norwegian limonite ore[J]. Magnetic and Electrical Separation，1998，(9)：131-148. " target="_blank">
[7]	LU G M，LI Y H，HASSANI F，et al. The influence of microwave irradiation on thermal properties of main rock-forming minerals[J]. Applied Thermal Engineering，2017，112(2)：1 523-1 532. " target="_blank">
[8]	KINGMAN S W，JACKSON K，CUMBANE A，et al. Recent developments in microwave-assisted comminution[J]. International Journal of Mineral Processing，2004，74(1)：71-83. " target="_blank">
[9]	KINGMAN S W. Recent developments in microwave processing of minerals[J]. International Materials Reviews，2006，51(1)：1-12. " target="_blank">
[10]	HASSANI F，NEKOOVAGHT P M. The development of microwave assisted machineries to break hard rocks[C]// Proceedings of the 28th International Symposium on Automation and Robotics in Construction (ISARC). Seoul，South Korea：[s.n.]，2011：678-684. " target="_blank">
[11]	HASSANI F，NEKOOVAGHT P M，GHARIB N. The influence of microwave irradiation on rocks for microwave-assisted underground excavation[J]. Journal of Rock Mechanics and Geotechnical Engineering，2016，8(1)：1-15. " target="_blank">
[12]	戴俊，师百垒，吴涛. 微波照射对岩石抗冲击性能的影响[J]. 河南科技大学学报：自然科学版，2016，37(1)：64-67.(DAI Jun， SHI Baibei，WU Tao. Effect of microwave irradiation on rock impact resistance[J]. Journal of Henan University of Science and Technology：Natural Science，2016，37(1)：64-67.(in Chinese))
[13]	戴俊，孟振，吴丙权. 微波照射对岩石强度的影响研究[J]. 有色金属，2014，(3)：54-57.(DAI Jun，MENG Zhen，WU Bingquan. Study on impact of rock strength by microwave irradiation[J]. Nonferrous Metals，2014，(3)：54-57.(in Chinese))
[14]	戴俊，杜文平，吴涛，等. 微波照射和冲击荷载作用后岩石裂纹试验研究[J]. 河南理工大学学报：自然科学版，2016，35(3)：137-140.(DAI Jun，DU Wenping，WU Tao，et al. Experimental study of rock fracture after microwave irradiation and impact load[J]. Journal of Henan Polytechnic University：Natural Science，2016，35(3)：137-140.(in Chinese))
[15]	KINGMAN S W，JACKSON K，BRADSHAW S M，et al. An investigation into the influence of microwave treatment on mineral ore comminution[J]. Powder Technology，2004，146(3)：176-184. " target="_blank">
[16]	HASSANI F，NEKOOVAGHT P M，RADZISZEWSKI P，et al. Microwave assisted mechanical rock breaking[C]// Proceedings of the 12th ISRM International Congress on Rock Mechanics. Beijing：International Society for Rock Mechanics，2011：2 075-2 080. " target="_blank">
[17]	KINGMAN S W，VORSTER W，ROWSON N A. The influence of mineralogy on microwave assisted grinding[J]. Minerals Engineering， 2000，13(3)：313-327. " target="_blank">
[18]	VORSTER W，ROWSON N A，KINGMAN S W. The effect of microwave radiation upon the processing of Neves Corvo copper ore[J]. International Journal of Mineral Processing，2001，63(1)：29-44. " target="_blank">
[19]	WHITTLES D N，KINGMAN S W，REDDISH D J. Application of numerical modelling for prediction of the influence of power density on microwave-assisted breakage[J]. International Journal of Mineral Processing，2003，68(1)：71-91. " target="_blank">
[20]	JONES D A，KINGMAN S W，WHITTLES D N，et al. The influence of microwave energy delivery method on strength reduction in ore samples[J]. Chemical Engineering and Processing：Process Intensification，2007，46(4)：291-299.
[21]	TOIFL M，MEISELS R，HARTLIEB P，et al. 3D numerical study on microwave induced stresses in inhomogeneous hard rocks[J]. Minerals Engineering，2016，90(1)：29-42. " target="_blank">
[22]	MEISELS R，TOIFL M，HARTLIEB P，et al. Microwave propagation and absorption and its thermo-mechanical consequences in heterogeneous rocks[J]. International Journal of Mineral Processing，2015，135：40-51. " target="_blank">
[23]	WANG Y，DJORDJEVIC N. Thermal stress FEM analysis of rock with microwave energy[J]. International Journal of Mineral Processing，2014，130(10)：74-81. " target="_blank">
[24]	JOHN R S，BATCHELOR A R，IVANOV D，et al. Understanding microwave induced sorting of porphyry copper ores[J]. Minerals Engineering，2015，84(12)：77-87. " target="_blank">
[25]	ALI A Y，BRADSHAW S M. Confined particle bed breakage of microwave treated and untreated ores[J]. Minerals Engineering，2011，24(14)：1 625-1 630. " target="_blank">
[26]	ALI A Y，BRADSHAW S M. Bonded-particle modelling of microwave-induced damage in ore particles[J]. Minerals Engineering，2010，23(10)：780-790.
[27]	ALI A Y，BRADSHAW S M. Quantifying damage around grain boundaries in microwave treated ores[J]. Chemical Engineering and Processing Process Intensification，2009，48(11)：1 566-1 573. " target="_blank">
[28]	MONTI T，TSELEV A，UDOUDO O，et al. High-resolution dielectric characterization of minerals：A step towards understanding the basic interactions between microwaves and rocks[J]. International Journal of Mineral Processing，2016，151(10)：8-21. " target="_blank">
[29]	卢高明，李元辉，张希巍，等. 周期荷载作用下黄砂岩疲劳破坏变形特性试验研究[J]. 岩土工程学报，2015，37(10)：1 886-1 892.(LU Gaoming，LI Yuanhui，ZHANG Xiwei，et al. Testing study on fatigue deformation characteristics of yellow sandstone under cyclic loading[J]. Chinese Journal of Geotechnical Engineering，2015，37(10)：1 886-1 892.(in Chinese))
[30]	卢高明，李元辉. 围压对黄砂岩疲劳破坏变形特性的影响[J]. 岩土力学，2016，37(7)：1 847-1 856.(LU Gaoming，LI Yuanhui. Influence of confining pressure on fatigue deformation properties of yellow sandstone[J]. Rock and Soil Mechanics，2016，37(7)：1 847-1 856.(in Chinese))
[31]	勒热夫斯基B B，诺维克Г Я. 岩石的物理学基础[M]. 何修仁译. 徐州：中国矿业大学出版社，1989：1-372.(Le горячей Минковский B B，Новик Г Я. The physics foundation of rock[M]. Translated by HE Xiuren. Xuzhou：China University of Mining Press，1989：1-372.(in Chinese)) " target="_blank">
[32]	HARTLIEB P，LEINDL M，KUCHAR F，et al. Damage of basalt induced by microwave irradiation[J]. Minerals Engineering，2012，31(5)：82-89. " target="_blank">
[33]	JERBY E，MEIR Y，FARAN M. Basalt melting by localized- microwave thermal-runaway instability[C]// The 14th International Conference on Microwave and High Frequency Heating. Ampere，Nottingham，UK：[s.n.]，2013：255-258. " target="_blank">