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Processes
Special Issues
Mine Ventilation and Dust Control Technology in Safety Management Engineering
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Mine Ventilation and Dust Control Technology in Safety Management Engineering

A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "Process Control and Monitoring".

Deadline for manuscript submissions: closed (31 May 2024) | Viewed by 10545

Special Issue Editors

Prof. Dr. Weimin Cheng

E-Mail Website
Guest Editor
College of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China
Interests: dust control; occupational hazard of dust; safety management engineering
Prof. Dr. Gang Zhou

E-Mail Website
Guest Editor
College of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China
Interests: safety and occupational health protection in industry and mining; environment function material; new energy security technology; safety systems engineering and emergency management
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Gang Wang

E-Mail Website
Guest Editor
Mine Disaster Prevention and Control-Ministry of State Key Laboratory Breeding Base, Shandong University of Science and Technology, Qingdao 266590, China
Interests: mine dust control; ventilation and dust prevention; numerical simulation

Special Issue Information

Dear Colleagues,

Coal dust is one of the main factors affecting the safety of coal mine production. With the vigorous promotion of mechanized, automatic and intelligent mining technology and the continuous increase of mining depth, the problem of mine disasters has become increasingly prominent, especially due to the increasing amount of dust generated in the process of mining and production, which seriously threatens the safe production of the mine and the life and health of miners. Mine ventilation and dust removal technology is the key technology for dust prevention in coal mines, and represents an important technical means to ensure the safety of mine production. The ventilation and dust removal methods of the heading face are mainly divided into three types: pressure, extraction and mixed. Through the control of the outward diffusion technology of the dusty air flow, combined with the long-pressure short-extraction dust removal system, the heading machine and the dust remover are equipped for comprehensive dust reduction. The best ventilation and dust removal effect can be achieved by selecting the best ventilation parameters and changing the ventilation system or air flow direction of the working face in the fully mechanized mining face. To advance the field, it is important to analyze the existing problems in the safety management of mine ventilation, and to propose specific solutions. Mine ventilation and dust removal technology can dilute and remove toxic and harmful gases and dust in mines to ensure safe production.

This Special Issue on "Mine Ventilation and Dust Control Technology in Safety Management Engineering" aims to collect high-quality works, and focuses on the latest development and application of mine ventilation and dust removal technology. Topics of interest include, but are not limited to:

  • Law of dust dispersion and pollution in industrial and mining operation environment;
  • Dust detection, monitoring and early warning technology;
  • Pre control of dust occupational hazards and individual protection;
  • Dust explosion and emergency management;
  • Research on intelligent ventilation and dust removal devices;
  • Mine production safety management engineering.

Prof. Dr. Weimin Cheng
Prof. Dr. Gang Zhou
Prof. Dr. Gang Wang
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Processes is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • mine dust control
  • ventilation and dust prevention
  • ventilation laws
  • occupational hazard of dust
  • dust control
  • numerical simulation
  • safety management engineering

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Published Papers (6 papers)

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Research

19 pages, 8930 KiB  
Article
Preparation of Crust Type Dust Suppression Gel Based on Plant Extraction Technology for Ginkgo biloba Leaves: Characterization, Properties, and Function Mechanism
by Bo Ren, Gang Zhou, Mingkun Song, Bingyou Jiang, Yuannan Zheng, Tao Fan, Shuailong Li, Jing Zhao, Haoyang Li and Hongrui Qu
Processes 2024, 12(1), 224; https://doi.org/10.3390/pr12010224 - 20 Jan 2024
Cited by 1 | Viewed by 1327
Abstract
The coal industry plays an essential role in China’s economic development, and issues such as occupational health and environmental pollution caused by coal dust have attracted a great deal of attention. In accordance with the principles of environmental protection and waste management, this [...] Read more.
The coal industry plays an essential role in China’s economic development, and issues such as occupational health and environmental pollution caused by coal dust have attracted a great deal of attention. In accordance with the principles of environmental protection and waste management, this study used carboxymethyl ginkgo cellulose (CL) extracted and modified from Ginkgo biloba leaves as a matrix, and a graft copolymerized with sodium 3-allyloxy-1-hydroxy-1-propanesulfonate (AHPS) and N-isopropylacrylamide (NIPAM) monomers to prepare low-cost, environmentally friendly, and high-performance coal dust suppression (C-A-N). By optimizing fitting experimental data through three factors and two response surface analyses, the optimal dust suppression efficiency ratio was determined to be 4:8:5, and its swelling and water retention properties were analyzed. The microstructure, chemical reaction process, combustion performance and crusting property of the dust suppression gel were analyzed using Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), thermogravimetry (TG), scanning electron microscopy (SEM), cone calorimetry, and consolidation layer strength tests. Relevant experiments show that the dust suppression gel prepared in this study has the characteristics of a strong wettability and minor impacts on the calorific value of coal, as well as green and environmental protection. When the wind speed is 10 m/s, the dust suppression effect reaches 93%, and the hardness of the solidified layer reaches 39.6 KPa. This study analyzed the migration and combination of functional groups in the interaction system using molecular dynamics simulation software. The microscopic effect and mechanism between dust suppression gel and coal are revealed from a molecular point of view. The feasibility and accuracy of the molecular dynamics simulation were verified by the consistency between simulation results and experimental data. Therefore, combining the utilization of waste resources with dust suppression can have important economic and social benefits. Full article
(This article belongs to the Special Issue Mine Ventilation and Dust Control Technology in Safety Management Engineering)
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Graphical abstract

17 pages, 2155 KiB  
Article
Research on Intelligent Control of Regional Air Volume Based on Machine Learning
by Shouguo Yang, Xiaofei Zhang, Jun Liang, Ning Xu and Shuxin Mei
Processes 2023, 11(12), 3296; https://doi.org/10.3390/pr11123296 - 25 Nov 2023
Cited by 3 | Viewed by 970
Abstract
To address the challenge of intelligently controlling air volume in regions affected by the frequent fluctuations in underground ventilation networks, a remote intelligent air regulation method based on machine learning was presented. This method encompasses three core components: local fan frequency conversion regulation, [...] Read more.
To address the challenge of intelligently controlling air volume in regions affected by the frequent fluctuations in underground ventilation networks, a remote intelligent air regulation method based on machine learning was presented. This method encompasses three core components: local fan frequency conversion regulation, associated branch air resistance regulation, and a comprehensive integration of both. Leveraging foundational mine ventilation theory, the principles behind branch sensitivity air regulation were dissected. By applying these principles, the key performance indicators crucial for the regulation of air volume within the ventilation system were identified. Subsequently, an intelligent model for regional air volume control was constructed. To validate the approach, an experimental platform for intelligent air volume control was established, guided by geometric, dynamic, and kinematic similarity criteria. Then, the experimental methodologies for simulating various ventilation scenarios were discussed, the data acquisition techniques were introduced, and the obtained results were analyzed. Employing machine learning techniques, we utilized five distinct algorithms to predict the operational parameters of targeted air volume ventilation equipment. It enabled precise and efficient control of air volume within the region. The results indicated that the least squares support vector machine (LS-SVM) stood out by delivering high-precision predictions of target air volume ventilation equipment parameters, all while maintaining a relatively short calculation time. This swift generation of feedback data and corresponding air volume control strategies will contribute to the precise management of air volume in the area. This work served as a valuable theoretical and practical guide for intelligent mining ventilation control. Full article
(This article belongs to the Special Issue Mine Ventilation and Dust Control Technology in Safety Management Engineering)
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15 pages, 4700 KiB  
Article
Experimental Study on Migration and Intrusion Characteristics of Pulverized Coal in Propped Fractures
by Qingao Zhu, Liming Yin, Qiming Huang, Enmao Wang and Zhiguo Hou
Processes 2023, 11(7), 2074; https://doi.org/10.3390/pr11072074 - 12 Jul 2023
Cited by 2 | Viewed by 1163
Abstract
Aiming at the problem of pulverized migration and plugging propped fractures during coal seam fracturing, we experimentally studied the pressure changes and pulverized coal blocking characteristics with deionized water and solutions of three surfactants including 1227 (C21H38ClN), SDS (C [...] Read more.
Aiming at the problem of pulverized migration and plugging propped fractures during coal seam fracturing, we experimentally studied the pressure changes and pulverized coal blocking characteristics with deionized water and solutions of three surfactants including 1227 (C21H38ClN), SDS (C12H25SO4Na) and TX-100 (C34H62O11). A device capable of visualizing propped fractures was established, and simulation experiments were conducted with solutions of different surfactants at different injection flow rates. The obtained images were binarized and analyzed to quantify the pulverized coal blockage degrees of facture under different conditions. The experimental results show that: (1) The higher the injection flow rate, the higher the inlet pressure. (2) All three surfactants can lower the injection pressure, as compared with water alone. SDS decreases the injection pressure more obviously at low injection flow rates, and the other two perform better at high injection flow rates. (3) Similar to their effects on inlet pressure, the ratio of pulverized coal in SDS solution is lower at low injection flow rates, while TX-100 and 1227 solutions show lower ratios of pulverized coal at high injection flow rates. Our work has provided a theoretical support for coal blockage removal and pressure reduction in propped fractures during coal seam fracturing to improve coal seam permeability and further improves the dust prevention effect of coal seam water injection. Full article
(This article belongs to the Special Issue Mine Ventilation and Dust Control Technology in Safety Management Engineering)
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16 pages, 1493 KiB  
Article
Column-Hemispherical Penetration Grouting Mechanism for Newtonian Fluid Considering the Tortuosity of Porous Media
by Zhiquan Yang, Junfan Xiong, Xuguang Zhao, Xiangrui Meng, Shaobin Wang, Rui Li, Yuan Wang, Mao Chen, Na He, Yi Yang and Hanhua Xu
Processes 2023, 11(6), 1737; https://doi.org/10.3390/pr11061737 - 7 Jun 2023
Cited by 8 | Viewed by 1237
Abstract
The intricate morphology of porous media can considerably affect the progression of penetration and the diffusion of grouting slurry. In this study, a Newtonian fluid’s refined seepage motion equation was proposed to incorporate the impact of tortuosity on the grouting process into gravel [...] Read more.
The intricate morphology of porous media can considerably affect the progression of penetration and the diffusion of grouting slurry. In this study, a Newtonian fluid’s refined seepage motion equation was proposed to incorporate the impact of tortuosity on the grouting process into gravel soil, and the column-hemispherical penetration grouting mechanism was analyzed using the method of theoretical analysis. Utilizing secondary-development programming techniques, a numerical simulation program was developed with COMSOL Multiphysics to model the penetration grouting mechanism of a Newtonian fluid in a column-hemispherical pattern, considering a medium’s tortuosity. The penetration grouting process of Newtonian cement into gravel soils was then simulated. Finally, the theoretical analysis, experimental values, and numerically simulated values were compared.The findings suggested that incorporating the tortuosity of porous media is more efficacious in depicting the penetration and diffusion behavior for Newtonian fluid grouting in porous media, as compared to omitting the tortuosity. The findings of this study contribute to a better understanding of grouting engineering in porous media strata, guiding practical design and construction. Full article
(This article belongs to the Special Issue Mine Ventilation and Dust Control Technology in Safety Management Engineering)
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12 pages, 3992 KiB  
Article
Influence of Inorganic Salt Additives on the Surface Tension of Sodium Dodecylbenzene Sulfonate Solution
by Biyong Zhu, Yan Liu, Pengfei Wang, Ronghua Liu and Yidan Jiang
Processes 2023, 11(6), 1708; https://doi.org/10.3390/pr11061708 - 2 Jun 2023
Cited by 2 | Viewed by 2286
Abstract
In order to study the effect of inorganic salt additives on the surface tension of a sodium dodecylbenzene sulfonate (SDBS) solution, the surface tension of the mixed system of six common inorganic salt additives, NaCl, CaCl2, AlCl3, Na2 [...] Read more.
In order to study the effect of inorganic salt additives on the surface tension of a sodium dodecylbenzene sulfonate (SDBS) solution, the surface tension of the mixed system of six common inorganic salt additives, NaCl, CaCl2, AlCl3, Na2SO4, Na2CO3, and NaHCO3, and SDBS was measured, and the effects of the inorganic salt types, surfactant concentrations and inorganic salt concentrations on the surface tension of the SDBS solution were studied. On this basis, three inorganic salts, NaCl, CaCl2 and Na2SO4, were selected, and their effects on the critical micelle concentration (CMC) of the SDBS solution were studied. The experimental results showed that different inorganic salts had different effects on the surface tension of the SDBS solution. The order of effect of the six inorganic salts on the surface tension of the SDBS solution was CaCl2 > NaCl > Na2SO4 > NaHCO3 > Na2CO3 > AlCl3; when the mass fraction of the SDBS solution is high, the influence of the inorganic salts on the surface tension of the SDBS solution is relatively small; with an increase in the concentration of the preferred inorganic salt additives, the surface tension of the SDBS solution decreases first, then tends to be stable, and then increases; a reduction in the critical micelle concentration by the three selected inorganic salt additives shows the trend of 0.7% NaCl > 0.5% CaCl2 > 0.5% Na2SO4. Full article
(This article belongs to the Special Issue Mine Ventilation and Dust Control Technology in Safety Management Engineering)
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13 pages, 4644 KiB  
Article
Study on Mechanism and Verification of Columnar Penetration Grouting of Time-Varying Newtonian Fluids
by Xuguang Zhao, Zhiquan Yang, Xiangrui Meng, Shaobin Wang, Rui Li, Hanhua Xu, Xiangpeng Wang, Changwen Ye, Tianbing Xiang, Wanzhong Xu, Junzhi Chen, Ping Wang, Jinke Yuan and Xiaohui Li
Processes 2023, 11(4), 1151; https://doi.org/10.3390/pr11041151 - 9 Apr 2023
Cited by 22 | Viewed by 1763
Abstract
Penetration grouting technology is an important technical means to improve the mechanical properties of gravel soil layers, and the time-varying characteristics of Newtonian fluid viscosity have an important influence on the morphology and effect of penetration grouting. However, these time-varying properties are not [...] Read more.
Penetration grouting technology is an important technical means to improve the mechanical properties of gravel soil layers, and the time-varying characteristics of Newtonian fluid viscosity have an important influence on the morphology and effect of penetration grouting. However, these time-varying properties are not considered in the current research on the mechanism of Newtonian fluid penetration grouting. In this paper, by studying the basic rheological equation of Newtonian fluids and its dynamic viscosity time-varying law, the penetration motion equation of viscosity time-varying Newtonian fluids is discussed, by means of theoretical analysis and experimental research. Based on this, the time-varying viscosity Newtonian fluid columnar penetration grouting diffusion mechanism (TVNCPGDM) equation is derived, the application scope of the equation is analyzed and a grouting experiment is designed to verify it. The results show that the theoretical value of the grouting diffusion radius calculated by the TVNCPGDM equation, is closer to the experimental value than that obtained by the equation of columnar penetration grouting without considering the viscosity time-varying Newtonian fluid, with a 12.9% improvement in accuracy. This shows that the TVNCPGDM equation derived in this paper, can better reflect the diffusion law and diffusion morphology of column penetration grouting of Newtonian fluid, which changes with time in the injected medium; and the diffusion radius obtained for penetration grouting is more in line with the actual grouting engineering demands. The research results can provide some theoretical guidance for the actual grouting of loose gravel soil layers. Full article
(This article belongs to the Special Issue Mine Ventilation and Dust Control Technology in Safety Management Engineering)
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