Study on the Difference of Microwave Irradiation Effect Caused by the Particle Size Distribution of Rock Minerals

Xue Botian

doi:doi:10.11648/j.ajce.20221001.13

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Study on the Difference of Microwave Irradiation Effect Caused by the Particle Size Distribution of Rock Minerals

Xue Botian

Published in American Journal of Civil Engineering (Volume 10, Issue 1)

Received: 11 February 2022 Published: 28 February 2022

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Abstract

In the process of microwave-assisted rock breaking, there are many factors that affect the rock breaking effect, among which the particle size distribution of minerals has an important influence. In this paper, the samples composed of common minerals calcite and pyrite in rocks were used as the research object, and six kinds of mineral particle size ratio schemes were set up. By using COMSOL multi-physical field coupling analysis platform, a binary medium analysis model was established to study the distribution characteristics and evolution law of electromagnetic field, temperature field, stress field and plastic zone of the model after microwave irradiation. The results showed that the mineral particle size ratio had no significant effect on the size and distribution of electromagnetic field, while the central temperature of the sample increased with the increase of particle size ratio; with the extention of irradiation time, the larger the particle size ratio, the greater the first principal stress of the model, and the tensile zone appeared in pyrite; The larger the particle size ratio, the earlier the initiation time of plastic zone, the larger the area of plastic zone, and the more obvious the difference of morphological characteristics of plastic zone. When the size of minerals in the rock was uniform, the weakening effect of microwave irradiation on the rock was better.

Published in	American Journal of Civil Engineering (Volume 10, Issue 1)
DOI	10.11648/j.ajce.20221001.13
Page(s)	23-30
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2022. Published by Science Publishing Group

Keywords

Microwave-Assisted, Rock Breaking, The Ratio of Mineral Size, Electromagnetic Field, Plastic Zone

References

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[2]	L Gaoming, T Jun, et al. Experimental study of the microwave sensitivity of main rock- forming minerals [J]. Rock and Soil Mechanics, 2019, 40 (06): 2066-2074.
[3]	M Toifl, R Meisels, P Hartlieb, Kuchar, T Antretter. 3D numerical study on microwave induced stresses in inhomogeneous hard rocks [J]. Minerals Engineering, 2016, 135 (90): 29-42.
[4]	S Kingman, K Jackson, S Bradshaw, et al. An investigation into the influence of microwave treatment on mineral ore comminution [J]. Powder Technology 2004, 146 (3): 176-184.
[5]	F L F, G J W, WU Z J, et al. An investigation of thermal effects on micro-properties of granite by X-ray CT technique [J]. Applied thermal engineering, 2018, 140 (25): 505-519.
[6]	H Guozhong, Z Jieqi, Z Jian, S Chao, Y Nan, Q Wei. Fracturing effect and damage behaviors for microstructure in shale under microwave irradiation [J]. Journal of China Coal Society, 2020, 45 (10): 3471-3479.
[7]	L Gaoming, Z Jianjun, Z Bing, P Dongjiang, T Tianyang. Damage deformation and energy characteristics of basalt irradiated by microwave under cyclic load [J]. Tunnel construction (Chinese and English), 2020, 40 (11): 1578-1585.
[8]	L Yuanhui, L Gaoming, F XiaTing, Z Xiwei. Experimental study on the effect of microwave heating path on hard rock crushing [J]. Chinese Journal of Rock Mechanics and Engineering, 2017, 36 (06): 1460-1468.
[9]	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.
[10]	G Feng, S Yan, X Xin, Z Keping, C shanpeng. Internal and external temperature rise characteristics of rock specimens under different microwave irradiation modes [J]. Chinese Journal of Geotechnical Engineering, 2020, 42 (04): 650-657.
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[15]	D Jun, Q like. Meso-simulation of rock damage under microwave irradiation [J]. Journal of Xi'an University of Science and Technology, 2014, 34 (06): 652-655.
[16]	Z Guanqi. Study on the influence of microwave irradiation on some physical and mechanical properties of common minerals [D]. Xi'an University of Technology, 2020.
[17]	T Yang, X Guobin, S Liying, X Linyu, D Chenqu. Discrete element modeling of microwave-induced rock damage at different discontinuous scales [J]. Journal of Hydroeletric Engineering, 2016, 35 (07): 15-22.
[18]	A Y Ali. Understanding the Effects of Mineralogy, Ore Texture and Microwave Power Delivery on Microwave Treatment of Ores [D]. The University of Stellenbosch, 2010.

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APA Style

Xue Botian. (2022). Study on the Difference of Microwave Irradiation Effect Caused by the Particle Size Distribution of Rock Minerals. American Journal of Civil Engineering, 10(1), 23-30. https://doi.org/10.11648/j.ajce.20221001.13

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ACS Style

Xue Botian. Study on the Difference of Microwave Irradiation Effect Caused by the Particle Size Distribution of Rock Minerals. Am. J. Civ. Eng. 2022, 10(1), 23-30. doi: 10.11648/j.ajce.20221001.13

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AMA Style

Xue Botian. Study on the Difference of Microwave Irradiation Effect Caused by the Particle Size Distribution of Rock Minerals. Am J Civ Eng. 2022;10(1):23-30. doi: 10.11648/j.ajce.20221001.13

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@article{10.11648/j.ajce.20221001.13,
  author = {Xue Botian},
  title = {Study on the Difference of Microwave Irradiation Effect Caused by the Particle Size Distribution of Rock Minerals},
  journal = {American Journal of Civil Engineering},
  volume = {10},
  number = {1},
  pages = {23-30},
  doi = {10.11648/j.ajce.20221001.13},
  url = {https://doi.org/10.11648/j.ajce.20221001.13},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajce.20221001.13},
  abstract = {In the process of microwave-assisted rock breaking, there are many factors that affect the rock breaking effect, among which the particle size distribution of minerals has an important influence. In this paper, the samples composed of common minerals calcite and pyrite in rocks were used as the research object, and six kinds of mineral particle size ratio schemes were set up. By using COMSOL multi-physical field coupling analysis platform, a binary medium analysis model was established to study the distribution characteristics and evolution law of electromagnetic field, temperature field, stress field and plastic zone of the model after microwave irradiation. The results showed that the mineral particle size ratio had no significant effect on the size and distribution of electromagnetic field, while the central temperature of the sample increased with the increase of particle size ratio; with the extention of irradiation time, the larger the particle size ratio, the greater the first principal stress of the model, and the tensile zone appeared in pyrite; The larger the particle size ratio, the earlier the initiation time of plastic zone, the larger the area of plastic zone, and the more obvious the difference of morphological characteristics of plastic zone. When the size of minerals in the rock was uniform, the weakening effect of microwave irradiation on the rock was better.},
 year = {2022}
}

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TY  - JOUR
T1  - Study on the Difference of Microwave Irradiation Effect Caused by the Particle Size Distribution of Rock Minerals
AU  - Xue Botian
Y1  - 2022/02/28
PY  - 2022
N1  - https://doi.org/10.11648/j.ajce.20221001.13
DO  - 10.11648/j.ajce.20221001.13
T2  - American Journal of Civil Engineering
JF  - American Journal of Civil Engineering
JO  - American Journal of Civil Engineering
SP  - 23
EP  - 30
PB  - Science Publishing Group
SN  - 2330-8737
UR  - https://doi.org/10.11648/j.ajce.20221001.13
AB  - In the process of microwave-assisted rock breaking, there are many factors that affect the rock breaking effect, among which the particle size distribution of minerals has an important influence. In this paper, the samples composed of common minerals calcite and pyrite in rocks were used as the research object, and six kinds of mineral particle size ratio schemes were set up. By using COMSOL multi-physical field coupling analysis platform, a binary medium analysis model was established to study the distribution characteristics and evolution law of electromagnetic field, temperature field, stress field and plastic zone of the model after microwave irradiation. The results showed that the mineral particle size ratio had no significant effect on the size and distribution of electromagnetic field, while the central temperature of the sample increased with the increase of particle size ratio; with the extention of irradiation time, the larger the particle size ratio, the greater the first principal stress of the model, and the tensile zone appeared in pyrite; The larger the particle size ratio, the earlier the initiation time of plastic zone, the larger the area of plastic zone, and the more obvious the difference of morphological characteristics of plastic zone. When the size of minerals in the rock was uniform, the weakening effect of microwave irradiation on the rock was better.
VL  - 10
IS  - 1
ER  -

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Author Information

Xue Botian

School of Architecture and Civil Engineering, Xi'an University of Science and Technology, Xi'an, China

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Plain Text BibTeX RIS

APA Style

Xue Botian. (2022). Study on the Difference of Microwave Irradiation Effect Caused by the Particle Size Distribution of Rock Minerals. American Journal of Civil Engineering, 10(1), 23-30. https://doi.org/10.11648/j.ajce.20221001.13

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ACS Style

Xue Botian. Study on the Difference of Microwave Irradiation Effect Caused by the Particle Size Distribution of Rock Minerals. Am. J. Civ. Eng. 2022, 10(1), 23-30. doi: 10.11648/j.ajce.20221001.13

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AMA Style

Xue Botian. Study on the Difference of Microwave Irradiation Effect Caused by the Particle Size Distribution of Rock Minerals. Am J Civ Eng. 2022;10(1):23-30. doi: 10.11648/j.ajce.20221001.13

Copy | Download

@article{10.11648/j.ajce.20221001.13,
  author = {Xue Botian},
  title = {Study on the Difference of Microwave Irradiation Effect Caused by the Particle Size Distribution of Rock Minerals},
  journal = {American Journal of Civil Engineering},
  volume = {10},
  number = {1},
  pages = {23-30},
  doi = {10.11648/j.ajce.20221001.13},
  url = {https://doi.org/10.11648/j.ajce.20221001.13},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajce.20221001.13},
  abstract = {In the process of microwave-assisted rock breaking, there are many factors that affect the rock breaking effect, among which the particle size distribution of minerals has an important influence. In this paper, the samples composed of common minerals calcite and pyrite in rocks were used as the research object, and six kinds of mineral particle size ratio schemes were set up. By using COMSOL multi-physical field coupling analysis platform, a binary medium analysis model was established to study the distribution characteristics and evolution law of electromagnetic field, temperature field, stress field and plastic zone of the model after microwave irradiation. The results showed that the mineral particle size ratio had no significant effect on the size and distribution of electromagnetic field, while the central temperature of the sample increased with the increase of particle size ratio; with the extention of irradiation time, the larger the particle size ratio, the greater the first principal stress of the model, and the tensile zone appeared in pyrite; The larger the particle size ratio, the earlier the initiation time of plastic zone, the larger the area of plastic zone, and the more obvious the difference of morphological characteristics of plastic zone. When the size of minerals in the rock was uniform, the weakening effect of microwave irradiation on the rock was better.},
 year = {2022}
}

Copy | Download

TY  - JOUR
T1  - Study on the Difference of Microwave Irradiation Effect Caused by the Particle Size Distribution of Rock Minerals
AU  - Xue Botian
Y1  - 2022/02/28
PY  - 2022
N1  - https://doi.org/10.11648/j.ajce.20221001.13
DO  - 10.11648/j.ajce.20221001.13
T2  - American Journal of Civil Engineering
JF  - American Journal of Civil Engineering
JO  - American Journal of Civil Engineering
SP  - 23
EP  - 30
PB  - Science Publishing Group
SN  - 2330-8737
UR  - https://doi.org/10.11648/j.ajce.20221001.13
AB  - In the process of microwave-assisted rock breaking, there are many factors that affect the rock breaking effect, among which the particle size distribution of minerals has an important influence. In this paper, the samples composed of common minerals calcite and pyrite in rocks were used as the research object, and six kinds of mineral particle size ratio schemes were set up. By using COMSOL multi-physical field coupling analysis platform, a binary medium analysis model was established to study the distribution characteristics and evolution law of electromagnetic field, temperature field, stress field and plastic zone of the model after microwave irradiation. The results showed that the mineral particle size ratio had no significant effect on the size and distribution of electromagnetic field, while the central temperature of the sample increased with the increase of particle size ratio; with the extention of irradiation time, the larger the particle size ratio, the greater the first principal stress of the model, and the tensile zone appeared in pyrite; The larger the particle size ratio, the earlier the initiation time of plastic zone, the larger the area of plastic zone, and the more obvious the difference of morphological characteristics of plastic zone. When the size of minerals in the rock was uniform, the weakening effect of microwave irradiation on the rock was better.
VL  - 10
IS  - 1
ER  -

Copy | Download