Home Journal of Tsinghua University (Science and Technology) Article
PDF (19.7 MB)
Cite
EndNote(RIS) BibTeX
Collect
Submit Manuscript
Show Outline
Outline
Abstract
Keywords
References
Show full outline
Hide outline
Publishing Language: Chinese

Research progress on the mechanisms of dust generation during cutting by mining and tunneling machines in underground coal mines

Wendong ZHOU1,2,3, Yanwei CUI1, Hetang WANG2(), Gehui REN1, Xinyue CUI1, Hao WANG1, Aojie SHEN1
School of Emergency Management, Nanjing University of Information Science & Technology, Nanjing 210044, China
Key Laboratory of Gas and Fire Control for Coal Mines, China University of Mining and Technology, Xuzhou 221116, China
Shandong Key Laboratory of Mining Disaster Prevention and Control, Shandong University of Science and Technology, Qingdao 266590, China
Show Author Information

Abstract

Significance

Coal remains the most essential fossil energy source in China, with production from underground coal mines accounting for more than 80%. In underground coal mining operations, dust is a pervasive and hazardous material that can significantly compromise the safety and health of miners. High dust concentrations are associated with an increased incidence of pneumoconiosis and a heightened risk of catastrophic events, such as coal dust or gas explosions. The primary source of dust is the cutting processes of excavators and roadheaders during the extraction of coal and rock. Therefore, it is essential to comprehensively elucidate the mechanism of dust generation during cutting and heading operations for effective dust control in underground coal mines.

Progress

This paper presents an overview of the latest research developments in the field of dust generation, with a particular emphasis on three key areas: the behavior of dust generation during cutting, research methodology, and influencing mechanisms. First, regarding the behavior of dust generation during cutting by excavators and roadheaders, researchers have proposed several theoretical models to elucidate both the fragmentation processes of coal and rock bodies and the generation of dust under the influence of cutting. These models are based not only on the principle of energy conversion but also on the influence of the geometry of the cutting pick during the dust generation process. This provides a solid theoretical basis for understanding the physical nature of dust generation. Regarding the research tools employed, researchers have simulated the dust generation phenomena when mining machinery cuts coal and rock bodies through physical experiments conducted on self-designed experimental platforms. Researchers have also conducted numerical simulations using finite element or discrete element methods. These advanced experimental techniques elucidate the actual cutting conditions and offer a robust analytical tool for investigating the dust generation mechanism in depth. Additionally, this study provides a comprehensive analysis of the mechanisms influencing dust generation during cutting, examining both internal and external factors. These factors include the physicochemical properties of coal and rock, such as coal rank, moisture content, pore characteristics, strength, and brittleness, as well as the parameters of the cutting conditions, such as cutting depth, advance speed, drum rotation speed, and the morphology and arrangement of picks.

Conclusions and Prospects

Current research on the dust generation mechanism during cutting reveals several contradictions. Existing models often rely on simplified assumptions, neglecting the anisotropy of coal and the actual cutting conditions in the field, leading to discrepancies between the calculated results and experimental observations. Moreover, existing experimental platforms struggle to accurately replicate the motion of the cutting pick during actual operations. Although many studies have focused on the properties of coal and rock and dust characteristics, some of the conclusions are conflicting. Future research should prioritize the construction of full-scale experimental platforms and the development of high-precision monitoring technologies. Comprehensively investigating the dust generation characteristics of complex coal seams and quantifying the energy conversion mechanisms during the cutting process are crucial. These efforts are essential for improving the efficiency of cutting operations and achieving more effective dust control.

Keywords

underground coal miningdustmining and tunneling machinesmechanism of dust generation
CLC number: X936 Document code: A Article ID: 1000-0054(2025)03-0414-19

References

[1]
National Bureau of Statistics. Statistical Communique of the People's Republic of China on the 2023 national economic and social development [EB/OL]. (2024-02-29) [2024-05-10]. https://www.stats.gov.cn/sj/zxfb/202402/t20240228_1947915.html. (in Chinese)
[2]

WANG H, WANG J L, ZHANG X F. Theory and technology of efficient roadway advance with driving and bolting integration [J]. Journal of China Coal Society, 2020, 45(6): 2021-2030. (in Chinese)

Google Scholar
[3]

LI D W, SUI J J, LIU G Q, et al. Technical status and development direction of coal mine dust hazard prevention and control technology in China [J]. Mining Safety & Environmental Protection, 2019, 46(6): 1-7. (in Chinese)

Google Scholar
[4]

ZHOU F B, YUAN L, CHENG W M, et al. Research progress on occupational health protection technology of mine dust from 2013 to 2023 [J]. Journal of Safety Science and Technology, 2023, 19(12): 5-15. (in Chinese)

Google Scholar
[5]

ZHOU W D, WANG H T, WANG D M, et al. The effect of coal proximate compositions on the characteristics of dust generation using a conical pick cutting system [J]. Powder Technology, 2019, 355: 573-581.

Crossref Google Scholar
[6]
National Health Commission of the People's Republic of China. 2023 statistical bulletin on the development of health care in China [EB/OL]. (2024-08-29) [2024-09-09]. http://www.nhc.gov.cn/guihuaxxs/s3585u/202408/6c037610b3a54f6c8535c515844fae96.shtml. (in Chinese)
[7]

YUAN L. Scientific conception of coal mine dust control and occupational safety [J]. Journal of China Coal Society, 2020, 45(1): 1-7. (in Chinese)

Google Scholar
[8]

GU D Z, LI Q S. Theoretical framework and key technologies of underground ecological protection based on coal mine occupational health prevention [J]. Journal of China Coal Society, 2021, 46(3): 950-958. (in Chinese)

Google Scholar
[9]

CHENG W M, ZHOU G, CHEN L J, et al. Research progress and prospect of dust control theory and technology in China's coal mines in the past 20 years [J]. Coal Science and Technology, 2020, 48(2): 1-20. (in Chinese)

Google Scholar
[10]

National Coal Mine Safety Administration. Compilation of cases of coal mine accidents with more than 100 people since the founding of the People's Republic of China: 1949—2006 [M]. Xuzhou: China University of Mining and Technology Press, 2007. (in Chinese)

[11]

LI D W, ZHAO Z, GUO S J, et al. "13th Five-Year Plan" coal mine dust occupational hazard prevention and control technology and development direction [J]. Mining Safety & Environmental Protection, 2022, 49(4): 51-58. (in Chinese)

Google Scholar
[12]

JIN L Z, LIU J G, LIN Q X, et al. Review on the research and application of water spray dust-reduction technology in mines [J]. Metal Mine, 2023(7): 2-17. (in Chinese)

Google Scholar
[13]

WANG D M, LU X X, WANG H T, et al. A new design of foaming agent mixing device for a pneumatic foaming system used for mine dust suppression [J]. International Journal of Mining Science and Technology, 2016, 26(2): 187-192.

Crossref Google Scholar
[14]
XU C H. Study on economical and efficient foaming agent for mine dust suppression based on synergistic effect of surfactant and macromolecule stabilizer [D]. Xuzhou: China University of Mining and Technology, 2019. (in Chinese)
[15]
ZHOU W D. Mechanisms of dust generation cut by pick used in roadheader and application of reducing dust [D]. Xuzhou: China University of Mining and Technology, 2020. (in Chinese)
[16]
BEPOH A И, КАЗАНСКНЙ A С, ЛЕЙБОВ B M, et al. РЕЗАНИЕ УГЛЯ [M]. WANG X Z, Trans. Beijing: China Industry Press, 1965. (in Chinese)
[17]

EVANS I. The force required to cut coal with blunt wedges [J]. International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1965, 2(1): 1-12.

Crossref Google Scholar
[18]

EVANS I. A theory of the cutting force for point-attack picks [J]. International Journal of Mining Engineering, 1984, 2(1): 63-71.

Crossref Google Scholar
[19]

NISHIMATSU Y. The Mechanics of Rock Cutting [J]. International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1972, 9(2): 261-270.

Crossref Google Scholar
[20]

NIU D M. Mechanical model of coal cutting [J]. Journal of China Coal Society, 1994, 19(5): 526-530. (in Chinese)

Google Scholar
[21]
ROXBOROUGH F F, LIU Z C. Theoretical considerations on pick shape in rock and coal cutting [R]. Kalgoorlie: Western Australia School of Mines, 1995.
[22]
GOKTAN R. A suggested improvement on Evan's cutting theory for conical bits [C]// Proceedings of the 4th International Symposium on Mine Mechanization and Automation. Brisbane, Australia: Colorado School of Mines, 1997: A4-57.
[23]

GOKTAN R M, GUNES N. A semi-empirical approach to cutting force prediction for point-attack picks [J]. The Journal of the South African Institute of Mining and Metallurgy, 2005, 105(4): 257-264.

Google Scholar
[24]
HUANG H. Discrete element modeling of tool-rock interaction [D]. Twin Cities: University of Minnesota, 1999.
[25]

ALEHOSSEIN H, DETOURNAY E, HUANG H. An analytical model for the indentation of rocks by blunt tools [J]. Rock Mechanics and Rock Engineering, 2000, 33(4): 267-284.

Crossref Google Scholar
[26]

LI X H, GE H T. Mathematical model of stochastic pick loads for a continuous miner [J]. Chinese Journal of Construction Machinery, 2006, 4(3): 262-264. (in Chinese)

Crossref Google Scholar
[27]

LIU C S, JIN L H. The cut mechanical model of pick-shaped cutter under conditions of dissymmetrical slotting [J]. Journal of China Coal Society, 2009, 34(7): 983-987. (in Chinese)

Crossref Google Scholar
[28]

LIU C S, SONG Y. Development and simulation of cutting force model on conical pick cutting rock at different wedge angles [J]. Journal of Heilongjiang Institute of Science and Technology, 2012, 22(3): 277-281. (in Chinese)

Google Scholar
[29]
GAO K D. Study on coal-loading performance of thin coal seam shearer [D]. Xuzhou: China University of Mining and Technology, 2014. (in Chinese)
[30]
LIU S Y. Research on cutting performance of shearer drum and cutting system dynamics [D]. Xuzhou: China University of Mining and Technology, 2009. (in Chinese)
[31]
LUO C X. Study on cutting characteristics of shearer mining coal seam with coal-rock interface [D]. Xuzhou: China University of Mining and Technology, 2015. (in Chinese)
[32]

GAO K D, DU C L, JIANG H X, et al. A theoretical model for predicting the Peak Cutting Force of conical picks [J]. Frattura ed Integrità Strutturale, 2014, 8(27): 43-52.

Crossref Google Scholar
[33]

WANG L P, JIANG B S, ZHANG Y, et al. Calculation of peak cutting force of conical picks based on Evans' cutting model [J]. Journal of China Coal Society, 2016, 41(9): 2367-2372. (in Chinese)

Google Scholar
[34]

LIU J X, MA C, ZENG Q L, et al. Research on cutting force of conical pick in cutting coal process [J]. Journal of China Coal Society, 2017, 42(5): 1325-1330. (in Chinese)

Google Scholar
[35]

LI X, WANG S, GE S, et al. A theoretical model for estimating the peak cutting force of conical picks [J]. Experimental Mechanics, 2018, 58(5): 709-720.

Crossref Google Scholar
[36]
WANG X. Study on the mechanism of rock and load reconstruction of shearer [D]. Fuxin: Liaoning Technical University, 2018. (in Chinese)
[37]
JIN X. Study on the two-way coupling mechanism and wear characteristics of shearer drum cutting coal-rock with gangue [D]. Fuxin: Liaoning Technical University, 2020. (in Chinese)
[38]
LIU H M. Research on dynamic force transfer law and performance optimization of spiral drum cutting coal containing dirt band [D]. Fuxin: Liaoning Technical University, 2019. (in Chinese)
[39]

ZHANG Q, ZHANG H Z, TIAN Y, et al. Crushing properties of hard coal under auxiliary impact by picks [J]. Journal of China Coal Society, 2022, 47(2): 1002-1016. (in Chinese)

Google Scholar
[40]

BIENIAWSKI Z T. Mechanism of brittle fracture of rock: Part Ⅰ-theory of the fracture process [J]. International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1967, 4(4): 395-406.

Crossref Google Scholar
[41]

LINDQVIST P, LAI H H, ALM O. Indentation fracture development in rock continuously observed with a scanning electron microscope [J]. International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1984, 21(4): 165-182.

Crossref Google Scholar
[42]

SU O, AKCIN N A. Numerical simulation of rock cutting using the discrete element method [J]. International Journal of Rock Mechanics and Mining Sciences, 2011, 48(3): 434-442.

Crossref Google Scholar
[43]

ZHOU Y, LI G S, TANG J Y. Simulation and analysis for pick cutting rock by LS-DYNA [J]. Chinese Journal of Engineering Design, 2011, 18(2): 103-108. (in Chinese)

Crossref Google Scholar
[44]

JIANG H X, LIU S Y, DU C L, et al. Numerical simulation of rock fragmentation process by roadheader pick [J]. Journal of Vibroengineering, 2013, 15(4): 1807-1817.

Google Scholar
[45]

JIANG H X, MENG D G. 3D numerical modelling of rock fracture with a hybrid finite and cohesive element method [J]. Engineering Fracture Mechanics, 2018, 199: 280-293.

Crossref Google Scholar
[46]

ZIPF JR R K, BIENIAWSKI Z T. Estimating the crush zone size under a cutting tool in coal [J]. International Journal of Mining and Geological Engineering, 1988, 6(4): 279-295.

Crossref Google Scholar
[47]
ZHANG Z Z. Energy evolution mechanism during rock deformation and failure [D]. Xuzhou: China University of Mining and Technology, 2013. (in Chinese)
[48]

BAAFI E Y, RAMANI R V. Rank and maceral effects on coal dust generation [J]. International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1979, 16(2): 107-115.

Crossref Google Scholar
[49]
MOORE M P, BISE C J. The relationship between the Hardgrove Grindability Index and the potential for respirable dust generation [R]. Morgantown: West Virginia University, 1984.
[50]

ORGANISCAK J A, PAGE S J. Airborne dust liberation during coal crushing [J]. Coal Preparation, 2000, 21(5-6): 423-453.

Crossref Google Scholar
[51]
PHILLIPS H, BELLE B K. Quantification of inherent respirable dust generation potential (IRDGP) of South African Coals [R]. Johannesburg: University of Witwatersrand, 2003.
[52]

BILGIN N, DEMIRCIN M A, COPUR H, et al. Dominant rock properties affecting the performance of conical picks and the comparison of some experimental and theoretical results [J]. International Journal of Rock Mechanics and Mining Sciences, 2006, 43(1): 139-156.

Crossref Google Scholar
[53]

KANG H, CHO J W, PARK J Y, et al. A new linear cutting machine for assessing the rock-cutting performance of a pick cutter [J]. International Journal of Rock Mechanics and Mining Sciences, 2016, 88: 129-136.

Crossref Google Scholar
[54]

WANG Z L. Dust-producing properties of coal and rocks and their laboratory determination [J]. Industrial Safety and Environmental Protection, 1995(7): 18-19. (in Chinese)

Google Scholar
[55]

ZHENG G B, KANG T H, YIN Z H, et al. Research on dust size distribution of coal impacted with different forms [J]. Journal of Mining & Safety Engineering, 2007, 24(1): 96-100. (in Chinese)

Crossref Google Scholar
[56]

CAI Z Y, KANG T H, LI Q T. Experimental study on impacting dust characteristics of low-grade anthracite [J]. Mining Research and Development, 2008, 28(4): 60-63. (in Chinese)

Crossref Google Scholar
[57]

LIU S Y, DU C L, CUI X X, et al. Model test of the cutting properties of a shearer drum [J]. Mining Science and Technology (China), 2009, 19(1): 74-78.

Crossref Google Scholar
[58]

LIU S Y, DU C L, LI J P. Fractal character of the distribution law of the cutting coal size [J]. Journal of China Coal Society, 2009, 34(7): 977-982. (in Chinese)

Crossref Google Scholar
[59]

WANG L, LIAO X X, ZHU J T, et al. Development and application of practical teaching system for simulation analysis of dust production in coal mining face [J]. Experimental Technology and Management, 2022, 39(1): 157-161. (in Chinese)

Google Scholar
[60]
XU X Y. Study on coal breaking mechanism and dust generation law of roadheader pick [D]. Jiaozuo: Henan Polytechnic University, 2021. (in Chinese)
[61]

PARK J Y, KANG H, LEE J W, et al. A study on rock cutting efficiency and structural stability of a point attack pick cutter by lab-scale linear cutting machine testing and finite element analysis [J]. International Journal of Rock Mechanics and Mining Sciences, 2018, 103: 215-229.

Crossref Google Scholar
[62]
CAO Z. Impact mechanical properties analysis and numerical simulation of rock breaking by pick [D]. Fuxin: Liaoning Technical University, 2014. (in Chinese)
[63]

MENEZES P L, LOVELL M R, AVDEEV I V, et al. Studies on the formation of discontinuous chips during rock cutting using an explicit finite element model [J]. The International Journal of Advanced Manufacturing Technology, 2014, 70(1-4): 635-648.

Crossref Google Scholar
[64]

MENEZES P L. Influence of cutter velocity, friction coefficient and rake angle on the formation of discontinuous rock fragments during rock cutting process [J]. The International Journal of Advanced Manufacturing Technology, 2017, 90(9): 3811-3827.

Crossref Google Scholar
[65]

ZHOU W D, WANG H T, ZHANG J Y, et al. A novel method for reducing the amount of dust produced by roadheaders based on the numerical simulation of coal breakage [J]. Fuel, 2023, 343: 127978.

Crossref Google Scholar
[66]
CUNDALL P A. BALL-A program to model granular media using the distinct element method [R]. London: Dames & Moore, Advanced Technology Group, 1978.
[67]
HU W R. Research on mechnical behavior of jointed rock mass based on smooth-joint contact model [D]. Wuhan: Wuhan University, 2017. (in Chinese)
[68]

ROJEK J, OÑATE E, LABRA C, et al. Discrete element simulation of rock cutting [J]. International Journal of Rock Mechanics and Mining Sciences, 2011, 48(6): 996-1010.

Crossref Google Scholar
[69]
ROEPKE W W, LINDROTH D P, MYREN T A. Reduction of dust and energy during coal cutting using point-attack bits, with an analysis of rotary cutting and development of a new cutting concept [R]. Twin Cities: Bureau of Mines, 1976.
[70]

BENNETT J G, DICK J A, KAPLAN Y S, et al. The relationship between coal rank and the prevalence of pneumoconiosis [J]. British Journal of Industrial Medicine, 1979, 36(3): 206-210.

Crossref Google Scholar
[71]

SRIKANTH R, RAMANI R V. Single-breakage studies to determine the relationships between respirable dust generation and coal seam characteristics [J]. Applied Occupational and Environmental Hygiene, 1996, 11(7): 662-668.

Crossref Google Scholar
[72]

HUANG S H, WANG J Y, RAN W Q. Relation between wetting effect of coal and dust generation capacity [J]. Coal Engineer, 1996(2): 2-5. (in Chinese)

Google Scholar
[73]

MENG Z P, PAN J N, LIU L L, et al. Influence of moisture contents on mechanical properties of sedimentary rock and its bursting potential [J]. Chinese Journal of Rock Mechanics and Engineering, 2009, 28(S1): 2637-2643. (in Chinese)

Google Scholar
[74]

NIE B S, LIU X F, YANG L L, et al. Pore structure characterization of different rank coals using gas adsorption and scanning electron microscopy [J]. Fuel, 2015, 158: 908-917.

Crossref Google Scholar
[75]

WANG D M. Mine dusts [M]. Beijing: Science Press, 2015. (in Chinese)

[76]

WANG D M. Mine ventilation and safety [M]. Xuzhou: China University of Mining and Technology Press, 2012. (in Chinese)

[77]

PENG R D, YANG Y C, JU Y, et al. Computation of fractal dimension of rock pores based on gray CT images [J]. Chinese Science Bulletin, 2011, 56(31): 3346-3357.

Crossref Google Scholar
[78]

BAUD P, WONG T F, ZHU W. Effects of porosity and crack density on the compressive strength of rocks [J]. International Journal of Rock Mechanics and Mining Sciences, 2014, 67: 202-211.

Crossref Google Scholar
[79]

ZHANG Y L, SUN Q, HE H, et al. Pore characteristics and mechanical properties of sandstone under the influence of temperature [J]. Applied Thermal Engineering, 2017, 113: 537-543.

Crossref Google Scholar
[80]

ZHANG J X, DAVIS D M, WONG T F. The brittle-ductile transition in porous sedimentary rocks: Geological implications for accretionary wedge aseismicity [J]. Journal of Structural Geology, 1993, 15(7): 819-830.

Crossref Google Scholar
[81]

FAKHIMI A, ALAVI GHARAHBAGH E. Discrete element analysis of the effect of pore size and pore distribution on the mechanical behavior of rock [J]. International Journal of Rock Mechanics and Mining Sciences, 2011, 48(1): 77-85.

Crossref Google Scholar
[82]

CHEN X D, WU S X, ZHOU J K. Influence of porosity on compressive and tensile strength of cement mortar [J]. Construction and Building Materials, 2013, 40: 869-874.

Crossref Google Scholar
[83]

ZHOU W D, WANG H T, WANG D M, et al. The influence of pore structure of coal on characteristics of dust generation during the process of conical pick cutting [J]. Powder Technology, 2020, 363: 559-568.

Crossref Google Scholar
[84]
SUN H S. Experimental study on the 10 nm~10 μm coal dust particles generated by drum cutting coal body [D]. Xuzhou: China University of Mining and Technology, 2023. (in Chinese)
[85]

SINGH S P. Brittleness and the mechanical winning of coal [J]. Mining Science and Technology, 1986, 3(3): 173-180.

Crossref Google Scholar
[86]

ATICI U, ERSOY A. Correlation of specific energy of cutting saws and drilling bits with rock brittleness and destruction energy [J]. Journal of Materials Processing Technology, 2009, 209(5): 2602-2612.

Crossref Google Scholar
[88]

DURSUN A E, GOKAY M K. Cuttability assessment of selected rocks through different brittleness values [J]. Rock Mechanics and Rock Engineering, 2016, 49(4): 1173-1190.

Crossref Google Scholar
[89]

YAGIZ S. Assessment of brittleness using rock strength and density with punch penetration test [J]. Tunnelling and Underground Space Technology, 2009, 24(1): 66-74.

Crossref Google Scholar
[90]

ZHANG D C, RANJITH P G, PERERA M S A. The brittleness indices used in rock mechanics and their application in shale hydraulic fracturing: A review [J]. Journal of Petroleum Science and Engineering, 2016, 143: 158-170.

Crossref Google Scholar
[91]

MENG F Z, ZHOU H, ZHANG C Q, et al. Evaluation methodology of brittleness of rock based on post-peak stress-strain curves [J]. Rock Mechanics and Rock Engineering, 2015, 48(5): 1787-1805.

Crossref Google Scholar
[92]

XIA Y J, LI L C, TANG C A, et al. A new method to evaluate rock mass brittleness based on stress-strain curves of class I [J]. Rock Mechanics and Rock Engineering, 2017, 50(5): 1123-1139.

Crossref Google Scholar
[93]

QUINN J B, QUINN G D. Indentation brittleness of ceramics: A fresh approach [J]. Journal of Materials Science, 1997, 32(16): 4331-4346.

Crossref Google Scholar
[94]

ABIOYE A V. Relationship of brittleness and fragmentation in brittle compression [J]. Engineering Geology, 2017, 221: 82-90.

Crossref Google Scholar
[95]

JI P Q, ZHANG X P, ZHANG Q. Partide flow code analysis of effect of ductility-brittleness change on TBM cutters rock fragmentation process and its failure mode [J]. Rock and Soil Mechanics, 2016, 37(S2): 724-734. (in Chinese)

Google Scholar
[96]

GONG Q M, ZHAO J. Influence of rock brittleness on TBM penetration rate in Singapore granite [J]. Tunnelling and Underground Space Technology, 2007, 22(3): 317-324.

Crossref Google Scholar
[97]

LI X F, WANG S B, GE S R, et al. Investigation on the influence mechanism of rock brittleness on rock fragmentation and cutting performance by discrete element method [J]. Measurement, 2018, 113: 120-130.

Crossref Google Scholar
[98]

ZHOU W D, WANG H T, WANG D M, et al. An experimental investigation on the influence of coal brittleness on dust generation [J]. Powder Technology, 2020, 364(48): 457-466.

Crossref Google Scholar
[99]
XU X B. Study on the characteristics and influencing factors of coal and rock cutting dust generation in fully mechanized mining face [D]. Huainan: Anhui University of Science & Technology, 2020. (in Chinese)
[100]
HAO X. Research on the law of coal body fragmentation and dust fragmentation and dust generation in fully mechanized excavation face [D]. Huainan: Anhui University of Science & Technology, 2020. (in Chinese)
[101]

ZHAO W B, QIAO S C, WANG J F, et al. Analysis of particles size distribution characteristics and dust producing rules of coking coal [J]. Coal Science and Technology, 2016, 44(6): 164-168. (in Chinese)

Google Scholar
[102]

LI X H. Mathematical model of cutting dust for a shearer [J]. Journal of Liaoning Technical University, 2002, 21(6): 776-779. (in Chinese)

Google Scholar
[103]
STREBIG K C, ZELLER H W. Effect of depth of cut and bit type on the generation of respirable dust [R]. Twin Cities: Bureau of Mines, 1975.
[104]

FOWELL R J, OCHEI N N. A comparison of dust make and energy requirements for rock cutting tools [J]. International Journal of Mining Engineering, 1984, 2(1): 73-83.

Crossref Google Scholar
[105]

ZHAO Y F, ZHU G H. Seeking ways to improve parameters of drum shearer in order to reduce dust generation [J]. Shanxi Mining Institute Learned Journal, 1996, 14(1): 76-82. (in Chinese)

Google Scholar
[106]

LI X H, LIU S M, HUANG Z L, et al. Study of the effects of shearer' kinematic parameters on on-way distribution of dust on coal face [J]. Applied Mechanics and Materials, 2011, 127: 400-405.

Crossref Google Scholar
[107]

TAN C, JIANG Z A, CHEN J S, et al. Numerical simulation of influencing factors on dust movement during coal cutting at fully mechanized working faces [J]. Journal of University of Science and Technology Beijing, 2014, 36(6): 716-721. (in Chinese)

Google Scholar
[108]

LIU X H, LIU S Y, TANG P. Coal fragment size model in cutting process [J]. Powder Technology, 2015, 272(2): 282-289.

Crossref Google Scholar
[109]

SHEN W H, HARDY R H, KHAIR W A. Laboratory study of acoustic emission and particle size distribution during rotary cutting [J]. International Journal of Rock Mechanics and Mining Sciences, 1997, 34(3-4): 121. e1-121. e16.

Crossref Google Scholar
[110]
ZHANG Y J. Experimental study on crushing and dust production by pick cutting teeth of comprehensive excavator [D]. Jiaozuo: Henan Polytechnic University, 2021. (in Chinese)
[111]
LI X F. Theoretical and experimental study on rock cutting in deep mining [D]. Xuzhou: China University of Mining and Technology, 2018. (in Chinese)
[112]

ZHOU W D, WANG H T, WANG D M, et al. The effect of geometries and cutting parameters of conical pick on the characteristics of dust generation: Experimental investigation and theoretical exploration [J]. Fuel Processing Technology, 2020, 198: 106243.

Crossref Google Scholar
[113]
LIU X H. Research on mechanical and wear characteristic of conical pick interacted with coal-rock [D]. Xuzhou: China University of Mining and Technology, 2016. (in Chinese)
[114]

ZHANG Q Q, HAN Z N, ZHANG M Q, et al. Experimental study of breakage mechanisms of rock induced by a pick and associated cutter spacing optimization [J]. Rock and Soil Mechanics, 2016, 37(8): 2172-2179. (in Chinese)

Google Scholar
Journal of Tsinghua University (Science and Technology)
Volume 65 Issue 3,
March 2025
Pages 414-432
DOI: 10.16511/j.cnki.qhdxxb.2025.26.017
Cite this article:
ZHOU W, CUI Y, WANG H, et al. Research progress on the mechanisms of dust generation during cutting by mining and tunneling machines in underground coal mines. Journal of Tsinghua University (Science and Technology), 2025, 65(3): 414-432. https://doi.org/10.16511/j.cnki.qhdxxb.2025.26.017
Metrics & Citations  
Article History
Copyright
Return