performance analysis of hydrodynamic rotary spray dust reduction device based on moving grid technology

doi:10.3785/j.issn.1006-754X.2025.04.102

Chinese Journal of Engineering Design

2025, Vol. 32

Issue (2): 240-251 DOI: 10.3785/j.issn.1006-754X.2025.04.102

Optimization Design

performance analysis of hydrodynamic rotary spray dust reduction device based on moving grid technology

Weijuan GUAN¹(

),Qinghua CHEN^2,^3,⁴,Dejun WANG^2,^3,⁴(

),Bingyou JIANG⁴,Zengsheng XU^2,^3,⁴

^1.School of Mathematics and Big Data, Anhui University of Science and Technology, Huainan 232001, China
^2.Institute of Environment-friendly Materials and Occupational Health, Anhui University of Science and Technology, Wuhu 241003, China
^3.Anhui Provincial Key Laboratory of Mining Intelligent Equipment and Technology, Anhui University of Science and Technology, Huainan 232001, China
^4.Key Laboratory of Industrial Dust Prevention and Control, Occupational Safety and Health, Ministry of Education, Anhui University of Science and Technology, Huainan 232001, China

Download:

HTML

PDF(4102KB)
Export: BibTeX | EndNote (RIS)

Abstract

hydrodynamic rotary spray dust reduction device has the advantages of only hydrodynamic drive and good atomization effect, and has been widely used in coal mine underground working face. In order to realize safe, accurate and efficient dust reduction, its performance was analyzed systematically based on dynamic grid technology. The 3D model of the dust reduction device was established by DesignModeler software, and the influence rules of the water axis outlet angle on the outlet speed of water flow and the rotational speed of water axis were analyzed by using the dynamic grid technology. The programming technique of UDF (user-defined function) and the VOF (volume of fluid method) model were used to analyze the variation rules of the axial velocity of fog particles at the mixing outlet and the axial velocity of wind flow in the wind flow inlet with the water axis outlet angle. The results showed that with the increase of water axis outlet angle, the maximum outlet velocity of water flow decreased from 63.19 m/s to 24.97 m/s, and the rotation speed of water axis gradually increased to 1 786.4 r/min; the maximum axial velocity of fog particles at mixing outlet decreased from 39.178 m/s to 10.637 m/s, then to 12.854 m/s, and finally to 8.014 m/s, the velocity uniformity increased firstly and then decreased; the maximum axial velocity of wind flow firstly increased from 0.804 m/s to 1.524 m/s and then decreased to 1.272 m/s, and the velocity uniformity was unchanged firstly and then decreased. When the water axis outlet angle was 45°, the atomization performance of the dust reduction device was the best. The test platform of water axis rotation speed and wind flow axial speed was set up, the correctness of simulation results was verified by experiments. The dust reduction device was applied in the field. The results showed that the reduction rates of total dust and respirable dust in the feed port area of the transfer machine were significantly increased after the adoption of the hydrodynamic rotary spray dust reduction device, both of which reached more than 75%, and the mass concentration of respirable dust in the working place was reduced to 6.31 mg/m³. The research results provide a new idea for creating a safe, healthy and green coal mine production environment.

Key words： rotary spray dynamic mesh numerical simulation negative-pressure dust reduction dust reduction efficiency

Received: 19 January 2024 Published: 06 May 2025

CLC:

TD 714

Corresponding Authors: Dejun WANG E-mail: ahhnds@163.com;2675023354@qq.com

	Service
	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	Weijuan GUAN
	Qinghua CHEN
	Dejun WANG
	Bingyou JIANG
	Zengsheng XU

Cite this article:

Weijuan GUAN,Qinghua CHEN,Dejun WANG,Bingyou JIANG,Zengsheng XU. performance analysis of hydrodynamic rotary spray dust reduction device based on moving grid technology. Chinese Journal of Engineering Design, 2025, 32(2): 240-251.

URL:

https://www.zjujournals.com/gcsjxb/10.3785/j.issn.1006-754X.2025.04.102 OR https://www.zjujournals.com/gcsjxb/Y2025/V32/I2/240

基于动网格技术的水动力旋转喷雾降尘装置性能分析

水动力旋转喷雾降尘装置具有仅需水动力驱动、雾化效果好等优点，在煤矿井下工作面得到广泛应用。为了实现安全、精准、高效降尘，基于动网格技术对其性能进行了系统分析。采用DesignModeler软件建立了降尘装置三维模型，采用动网格技术分析了水轴出口角度对水流出口速度和水轴转速的影响规律，并基于UDF（user-defined function，用户自定义函数）编程技术和VOF（volume of fluid method，流体体积法）模型，分析了降尘装置混合出口处的雾粒轴向速度和风流进口处的风流轴向速度随水轴出口角度的变化规律。结果表明：随着水轴出口角度的增大，水流最大出口速度从63.19 m/s减小到24.97 m/s，水轴转速逐步增大到1 786.4 r/min；雾粒最大轴向速度从39.178 m/s减小到10.637 m/s，后增大到12.854 m/s，最后减小到8.014 m/s，速度均匀性先增强后减弱；风流最大轴向速度从0.804 m/s增大到1.524 m/s，后减小到1.272 m/s，速度均匀性先基本不变后减弱；当水轴出口角度为45°时，降尘装置的雾化性能最佳。搭建了水轴转速和风流轴向速度测试平台，通过实验验证了仿真结果的正确性。将降尘装置进行了现场应用，结果表明，采用水动力旋转喷雾降尘装置后，转载机进料口区域总粉尘和呼吸性粉尘的降尘率有了明显提高，均达到了75%以上，其中工人作业处的呼吸性粉尘质量浓度降到6.31 mg/m³。研究结果为创建安全、健康、绿色的煤矿生产环境提供了新思路。

关键词： 旋转喷雾, 动网格, 数值模拟, 负压除尘, 降尘效率

Fig.1 Structure of hydrodynamic rotary spray dust reduction device

Fig.2 Structure of hydrodynamic take-off axis

Fig.3 Schematic of dust reduction principle

Fig.4 Dust reduction simulation process

Table 1 Result of grid independence test for model of flow field in water axis

Table 2 Result of grid independence test for model of flow field in dust reduction device

Fig.5 Three-dimensional model of flow field in water axis

Fig.6 Global mesh and local refinement mesh of model of flow field in water axis

Fig.7 Three-dimensional model of flow field in dust reduction device

Fig.8 Global mesh and local refinement mesh of model of flow field in dust reduction device

Table 3 Parameters for simulation models of speed of flow field in water axis and atomization performance of dust reduction device

Fig.9 Contour diagram of outlet velocity of water flow

Table 4 Maximum outlet velocity of water flow

Fig.10 Change curves of water axis rotation speed with water axis outlet angle

Fig.11 Contour diagram of axial velocity of fog particles at mixing outlet of dust reduction device

Fig.12 Cloud picture of axial velocity of wind flow at wind flow inlet of dust reduction device

Fig.13 Test platform of water axis rotation speed and wind flow axial speed

Fig.14 Comparison of experimental and simulated values of water axis rotation speed and wind flow axial speed

Fig.15 Dust reduction test site of hydrodynamic rotary spray dust reduction device

Fig.16 Arrangement of dust mass concentration measurement points in transfer machine area

Table 5 Dust mass concentrations and dust reduction rates of measurement points in transfer machine area


[10]	蒋仲安，王亚朋，许峰. 金属矿山气-水喷头雾化特性及降尘能力实验研究［J］. 中南大学学报（自然科学版）， 2020， 51（1）： 184-192. JIANG Z A， WANG Y P， XU F. Experimental study on atomization characteristics and dust reduction capacity of gas-water nozzles in metal mines［J］. Journal of Central South University （Science and Technology）， 2020， 51（1）： 184-192.

[11]	聂文，牛文进，鲍秋，等. 基于Dmol3模块的不同表面活性剂对煤尘润湿性的影响［J］. 煤炭学报， 2023， 48（3）： 1255-1266. NIE W， NIU W J， BAO Q， et al. Effect of different surfactants on the wettability of coal dust based on Dmol3 module［J］. Journal of China Coal Society， 2023， 48（3）： 1255-1266.

[12]	王鹏飞，邬高高，袁新虎，等. 微纳米气泡强化喷雾降尘试验研究［J］. 煤炭学报， 2022， 47（12）： 4495-4503. WANG P F， WU G G， YUAN X H， et al. An enhanced spray dust suppression method by micro-nano bubbles［J］. Journal of China Coal Society， 2022， 47（12）： 4495-4503.

[13]	陈清华，宋皓然，崔锦琼，等. 同向风速对内混式空气雾化喷嘴雾化特性的影响研究［J］. 煤矿安全， 2022， 53（5）： 171-175. CHEN Q H， SONG H R， CUI J Q， et al. Research on influence of same wind speed on atomization characteristics of internal mixing air atomizing nozzle［J］. Safety in Coal Mines， 2022， 53（5）： 171-175.

[14]	杨洁，胡胜勇，刘湃，等. 矿用湿式除尘器研发现状与发展趋势［J］. 煤矿安全， 2023， 54（8）： 186-194. YANG J， HU S Y， LIU P， et al. Research status and development trend of wet dust collector for mine［J］. Safety in Coal Mines， 2023， 54（8）： 186-194.

[15]	高扬，胡胜勇，刘长河，等. 矿用径混式旋流除尘器的研究与应用［J］. 煤炭工程， 2021， 53（10）： 175-179. GAO Y， HU S Y， LIU C H， et al. Research and application of radial mixing cyclone dust collector for mine［J］. Coal Engineering， 2021， 53（10）： 175-179.

[1]	程卫民，周刚，陈连军，等. 我国煤矿粉尘防治理论与技术20年研究进展及展望［J］. 煤炭科学技术， 2020， 48（2）： 1-20. 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.

[16]	张立祥，方宏勋，陈岳松. KJS-Y系列矿用降尘器叶片优化设计［J］. 煤炭技术， 2022， 41（2）： 197-199. ZHANG L X， FANG H X， CHEN Y S. Optimization design of blade for KJS-Y series mine dust collector［J］. Coal Technology， 2022， 41（2）： 197-199.

[17]	张宏，郭奋超，马亮，等. 综掘工作面气水联动除尘装置影响因素及应用效果分析［J］. 中国安全生产科学技术， 2023， 19（3）： 189-194. ZHANG H， GUO F C， MA L， et al. Analysis on influencing factors and application effect of air-water linkage dust removal device in fully mechanized heading face［J］. Journal of Safety Science and Technology， 2023， 19（3）： 189-194.

[18]	SHAO W， CUI Z， WANG N， et al. Numerical simulation of heat transfer process in cement grate cooler based on dynamic mesh technique［J］.Science China Technological Sciences，2016，59（7）：1065-1070.

[19]	肖聪，罗英，张宏亮，等. 基于动网格技术的超临界水冷堆控制棒落棒及缓冲分析［J］. 核动力工程， 2017， 38（）： 79-83. XIAO C， LUO Y， ZHANG H L， et al. Analysis of control rod dropping and buffering behavior of supercritical water-cooled reactor based on dynamic grid technology［J］. Nuclear Power Engineering， 2017， 38 （）： 79-83.

[20]	常波峰，郭奋超，马亮，等. 喷雾降尘器防护结构设计与分析［J］. 矿山机械， 2022， 50（6）： 49-53. CHANG B F， GUO F C， MA L， et al. Design and analysis on protective structure for spray duster［J］. Mining & Processing Equipment， 2022， 50（6）： 49-53.

[21]	夏田，赵一号，穆琪，等. 高速机床导轨防护罩片的模态分析与试验［J］. 机械设计， 2021， 38（1）： 42-46. XIA T， ZHAO Y H， MU Q， et al. Modal analysis and experiment of the high-speed machine tool's guide rail shield［J］. Journal of Machine Design， 2021， 38（1）： 42-46.

[22]	中华人民共和国应急管理部.应急管理部关于修改《煤矿安全规程》的决定［J］. 中华人民共和国国务院公报， 2022（10）： 52-57. Ministry of Emergency Management of the People's Republic of China. Decision of the Ministry of Emergency Management on amending the coal mine safety rules［J］. Gazette of the State Council of the People's Republic of China， 2022（10）： 52-57.

[23]	中国煤炭工业协会科技发展部. 煤矿井下浮游粉尘浓度检测技术规范：［S］. 北京：煤炭工业出版社，2019. Science and Technology Development Department of China Coal Industry Association. Technical specifications of floating dust detection for underground coal mine：［S］. Beijing： China Coal Industry Publishing House， 2019.

[24]	中国煤炭工业协会. 煤矿井下粉尘综合防治技术规范： A ［S］. 北京：煤炭工业出版社， 2006. China Coal Industry Association. Technical specifications of comprehensive dust control measures for underground coal mine： A ［S］. Beijing： China Coal Industry Publishing House， 2006.

[2]	袁亮. 我国煤矿安全发展战略研究［J］. 中国煤炭， 2021， 47（6）： 1-6. YUAN L. Study on the development strategy of coal mine safety in China［J］. China Coal， 2021， 47（6）： 1-6.

[3]	中华人民共和国国务院. 国务院关于实施健康中国行动的意见［EB/OL］. （2019-07-15）［2024-01-09］. . The State Council of the People's Republic of China. The state council's opinions on implementing healthy China action［EB/OL］. （2019-07-15）［2024-01-09］. .

[4]	刘震，王文迪，许文彪，等. 煤层注水渗透率模型及水力耦合影响因素数值模拟研究［J］. 采矿与安全工程学报， 2021， 38（6）： 1250-1258. LIU Z， WANG W D， XU W B， et al. Permeability model of coal seam water injection and numerical simulation study of hydraulic coupling influencing factors［J］. Journal of Mining & Safety Engineering， 2021， 38（6）： 1250-1258.

[5]	关万里，白永亭. 神东矿区现代化掘进工作面一体化高效除尘技术及装备［J］. 中国煤炭， 2022， 48（S1）： 62-67. GUAN W L， BAI Y T. Integrated high-efficiency dust removal technology and equipment for modern heading face in Shendong mining area［J］. China Coal， 2022， 48（S1）： 62-67.

[6]	陈举师，蒋仲安，王洪胜. 露天矿潜孔钻机泡沫发生器的性能实验［J］. 哈尔滨工业大学学报， 2016， 48（4）： 166-171. CHEN J S， JIANG Z A， WANG H S. Experiments on properties of foaming generator during down-the-hole drilling in open-pit mine［J］. Journal of Harbin Institute of Technology， 2016， 48（4）： 166-171.

[7]	姜伯洋，齐艺裴，张嘉勇，等. 煤矿尘雾凝并降尘增效研究现状与展望［J/OL］. 煤炭科学技术， 2023： 1-18. （2023-12-08）. . JIANG B Y， QI Y P， ZHANG J Y， et al. Present situation and prospect of research on coal mine dust fog condensation and dust reduction efficiency［J/OL］. Coal Science and Technology， 2023： 1-18. （2023-12-08）. .

[8]	王鹏飞，邬高高，田畅，等. 基于正交试验的内混式空气雾化喷嘴结构参数优化［J］. 煤炭科学技术， 2023， 51（9）： 129-139. WANG P F， WU G G， TIAN C， et al. Structural parameters optimization of internal mixing air atomizing nozzle based on orthogonal experiment［J］. Coal Science and Technology， 2023， 51（9）： 129-139.

[9]	周刚，尹文婧，冯博. 综采工作面移架尘源粉尘-雾滴场分布特征模拟分析与工程应用［J］. 煤炭学报， 2018， 43（12）： 3425-3435. ZHOU G， YIN W J， FENG B. Numerical simulation on the distribution characteristics of dust-droplet field during support movement in a fully-mechanized mining face and related engineering applications［J］. Journal of China Coal Society， 2018， 43（12）： 3425-3435.

[1]	Huijie SHU,Guoliang HU,Wencai ZHU,Lifan YU,Pinye LI. Numerical simulation and performance analysis of magnetorheological damper based on BP and HBP rheological models[J]. Chinese Journal of Engineering Design, 2024, 31(3): 402-408.

[2]	Chen WANG,Bo GAO,Xu YANG. Lightweight design of Stewart type six-axis force sensor[J]. Chinese Journal of Engineering Design, 2022, 29(4): 419-429.

[3]	XIONG Wei, GE Zhi-hua, PANG Qiao, LI Man-di, WANG You. Theoretical design and experimental study on interference of hub bearing unit[J]. Chinese Journal of Engineering Design, 2021, 28(1): 41-47.

[4]	ZHANG Yi-cong, ZHU Wei, WU Yu-guo, SHI Li-ping. Numerical simulation of sealing performance of Reuleaux triangular micro-dimpled textured end face[J]. Chinese Journal of Engineering Design, 2020, 27(1): 103-110.

[5]	HOU Yong-jun, LI Fen, WU Xian-jin, LIU You-ping. Numerical simulation study of the performance of gas-liquid ejector in negative pressure drilling fluid shale shaker[J]. Chinese Journal of Engineering Design, 2019, 26(4): 423-432.

[6]	ZHANG Xiao-dong, CHEN Long. Research on valve seat cone angle of new inner blowout preventer based on erosion wear theory[J]. Chinese Journal of Engineering Design, 2019, 26(3): 287-298.

[7]	ZHONG Gong-xiang, ZOU Di, ZHANG Xing. Design and simulation of triangular air-powered rotary enginebased on CFD and ADAMS[J]. Chinese Journal of Engineering Design, 2019, 26(3): 305-314.

[8]	LI Shun-ming, WANG Yi-bo, GU Xin-zhong. Energy-saving optimization design of a lawn mower based on flow field analysis[J]. Chinese Journal of Engineering Design, 2018, 25(6): 683-689.

[9]	ZHANG Yuan, PENG Zhen-hua, GAO Ding-xiang, REN Hai-tao, TANG Yi-xin. Design and mixing performance research of core tube heavy oil mixing and diluting mixer[J]. Chinese Journal of Engineering Design, 2018, 25(5): 510-517.

[10]	DENG Rong, HOU Kai, LI Meng-hua, LI Xiang-dong. Study on rock breaking performance of hybrid single cone bit[J]. Chinese Journal of Engineering Design, 2018, 25(3): 262-269.

[11]	XING Meng-long, LIU Jia-xin, LU Chun-guang, JIANG Yan-kun. Improvement and signal-to-noise ratio analysis of cooling fan for grader[J]. Chinese Journal of Engineering Design, 2017, 24(5): 563-571.

[12]	ZHANG Lu, WU Peng, WU Da-zhuan, HONG Wei-rong. Study on pressure fluctuation control of a regenerative pump for fuel system[J]. Chinese Journal of Engineering Design, 2017, 24(4): 395-402.

[13]	YANG Wei-jie, MENG Wen-jun, WU Si-min, LIU Bao-lin, QI Xiang-dong. Simulation analysis and experimental verification of coal suction characteristics of the new railway tunnel fallen coal dust collection device[J]. Chinese Journal of Engineering Design, 2017, 24(2): 174-181.

[14]	XIA Li， WU Peng， WU Da-zhuan. Effects of reflux hole of volute on the performance of self-priming pump[J]. Chinese Journal of Engineering Design, 2015, 22(3): 284-289.

[15]	ZHU Gui-hua， MA Kai， TANG Xiao， GAO Ming-quan， ZHU Hong-bin. Numerical simulation of the liquid-solid two-phase flow mixture on sludge with shifted propeller[J]. Chinese Journal of Engineering Design, 2015, 22(1): 49-53.

Viewed

Full text

Abstract

Cited

Shared

Discussed