MTW European Type Trapezium Mill
Input size:30-50mm
Capacity: 3-50t/h
LM Vertical Roller Mill
Input size:38-65mm
Capacity: 13-70t/h
Raymond Mill
Input size:20-30mm
Capacity: 0.8-9.5t/h
Sand powder vertical mill
Input size:30-55mm
Capacity: 30-900t/h
LUM series superfine vertical roller grinding mill
Input size:10-20mm
Capacity: 5-18t/h
MW Micro Powder Mill
Input size:≤20mm
Capacity: 0.5-12t/h
LM Vertical Slag Mill
Input size:38-65mm
Capacity: 7-100t/h
LM Vertical Coal Mill
Input size:≤50mm
Capacity: 5-100t/h
TGM Trapezium Mill
Input size:25-40mm
Capacity: 3-36t/h
MB5X Pendulum Roller Grinding Mill
Input size:25-55mm
Capacity: 4-100t/h
Straight-Through Centrifugal Mill
Input size:30-40mm
Capacity: 15-45t/h
Coal mine fully mechanized mining support model
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CMYOLOv8: Lightweight YOLO for Coal Mine
2024年3月14日 Therefore, this paper proposes a lightweight object detection algorithm designed specifically for the coal mining face, referred to as CMYOLOv8 The algorithm introduces adaptive predefined anchor boxes tailored 2019年12月2日 A mathematical hydraulic support selftracking model for threemachine cooperative mining is proposed to address low efficiency and difficulties in strategy evaluation An operation optimization method of a fully mechanized coal mining 2014年10月10日 Fully mechanized mining (FMM) technology has been applied in Chinese coal mines for more than 40 years At present, the output of a FMM face has reached 10million Development and prospect on fully mechanized mining in Chinese coal mines2024年4月1日 Based on this model, the influence mechanism of the supporting strength of hydraulic support on surrounding rock stress regulation and coal stability in front of the top Stability analysis of longwall topcoal caving face in extrathick coal
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Research and practice of intelligent coal mine technology
2022年4月15日 Scientific research has enabled underground mining to shift from mechanized mining to automated and intelligent mining Coal mine intelligence is the core technical support 2023年11月15日 With the development of the mining technique of longwall face and the extensive use of large mining height and high working resistance of the hydraulic support, the Optimal tracking control of the coal mining face fluid supply 2023年6月27日 As the core equipment for fully mechanized coal mining, hydraulic support can provide a safe working face, and to move the scraper conveyor and shearer in the working An open dataset for intelligent recognition and classification 2013年11月1日 Fully mechanized mining with large mining height (FMMLMH) is widely used in thick coal seam mining face for its higher recovery ratio, especially where the thickness is less System dynamics model of the supportsurrounding rock system in fully
Optimization of Process Control Parameters for Fully Mechanized Mining
In this study, the historical production data of a fully mechanized coal mining face was used to train the process control parameter coupling relationship model based on artificial neural 2022年9月14日 In this paper, based on the research background of stopping mining and withdrawing supports in 15 m extrathick coal seam fully mechanized caving face in Datong mining area, through onsite monitoring, laboratory Reasonable stopping method and retracement 2019年12月2日 A mathematical hydraulic support selftracking model for threemachine cooperative mining is proposed to address low efficiency and difficulties in strategy evaluation of a fully mechanized coal face The proposed model uses the coordinates and traction speed of the shearer to calculate the frequency of the circular hydraulic support and realize the coordinated An operation optimization method of a fully mechanized coal mining 2021年9月23日 The stability of tailgate plays an important role in the safety mining of working face In the present work, a tailgate of Tongxin mine in north Shanxi Province, China, has been taken as the research background; the nonrepeated and longdistance advance support technology (NLAST) has been studied by theoretical analyses and field practice The lateral Nonrepeated advance support technology: a fully mechanized
Stability Mechanism and Control Technology for Fully Mechanized
Fully mechanized top caving mining of steeply inclined extrathick seams with variable angles has complex roof rock movement, failure, caving, and filling mechanisms Moreover, the variableangle coal seams make rock–equipment stability control challenging We analyzed rock deformation and failure mechanisms, overburden bearing structures, and working 2022年6月4日 A smart fully mechanized coal mining working face is comprised of various heterogeneous equipment that work together in unknown coal seam environments The goal is to form a smart operational system with comprehensive perception, decisionmaking, and control This involves many work points and complex coupling relationships, indicating it needs to be A virtual test and evaluation method for fully mechanized mining 2023年11月8日 In order to effectively solve the problems existing in thin coal seam mining, Binhu Coal Mine has established intelligent fully mechanized mining and actively explored automatic coal cutting Research on an Intelligent Mining Complete System of a Fully Mechanized 2014年9月1日 Fully mechanized mining (FMM) technology has been applied in Chinese coal mines for more than 40 years At present, the output of a FMM face has reached 10million tons with Chinesemade equipmentDevelopment and prospect on fully mechanized mining in Chinese coal mines
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Evolution of mining‐induced stress in fully mechanized top‐coal
2020年2月22日 1 INTRODUCTION Since the technology of fully mechanized topcoal caving (FMTC) was first applied in the 1950s, with full development, it has become one of the landmark achievements in the field of coal mining in China, 1 and been recognized around the world 2, 3 The studies of basic theories of FMTC mainly focus on the relationship between supports and 2017年8月11日 The fully mechanized solid dense stowing mining technology has been implemented in more than 35 state owned key coal mines in China, such as Jizhong energy Xingtai coal mine, Jining Huayuan coal mine, Pingdingshan Tian’an No 12 coal mine, Shandong Energy Group, Xuhzou Sanhejian coal mine, etcGreen and Sustainable Mining: Underground Coal Mine Fully Mechanized 2021年9月3日 Taking the fully mechanized mining face (FMMF) through the abandoned roadway (AR) in a coal mine in Shanxi Province, China as the engineering background, the field investigation, theoretical analysis, numerical simulation and field test were comprehensively used to study the instability mechanism of the trend AR The deformation and failure evolution of the Research and Practice on Filling Technology of Fully Mechanized Coal 2023年11月8日 The mining environment of thin coal seam working faces is generally harsh, the labor intensity is high, and the production efficiency is low Previous studies have shown that thin coal seam mining finds it difficult to follow machines, does not have complete sets of equipment, has a low degree of automation, and has difficult system cocontrol, which easily causes Research on an Intelligent Mining Complete System of a Fully Mechanized
Position and attitude digital twin model of hydraulic supports in fully
2024年5月25日 To build a digital twin model of intelligent longwall coal mining, this paper presents a new fullparameter position and attitude digital twin model of hydraulic supports A fullparameter matrix describing the position and attitude of a support is established first Then, the position and attitude digital twin model of a support based on this matrix is built Afterward, a 2024年1月25日 In recent years, with the continuous growth of global energy demand, coal, as a crucial energy resource that has served industrial production for centuries, still plays a vital role in the modern energy system [1,2,3,4,5]It is currently widely used in electricity generation and industrial manufacturing, providing reliable energy support for societal development [6,7,8]CMYOLOv8: Lightweight YOLO for Coal Mine Fully Mechanized Mining 2024年6月24日 Fully mechanized topcoal caving mining is one of the main methods of thick seam mining 1,2,3,4,5Topcoal is the only load transfer medium between support and roof, and its physical and Boundary quantitative characterization of the topcoal limit 2019年2月11日 During the coal mining process, the dust generated at fully mechanized mining faces approximately accounts for more than 50% of total coal mine dust generation, among which the support relocation–induced dust generation accounts for more than 45% of total dust generation at fully mechanized mining faces (Liu et al 2019a; Zhou et al 2018b)Experimental characterization of multinozzle atomization
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Law of respirable dust pollution induced by cuttingadvancing support
2024年5月22日 Therefore, the 33,200 fully mechanized mining face in No 10 Coal Mine of Pingdingshan Mining Group was served as the research object, a fullscale geometric model of equal proportions was established to analyze the coupling dispersion law of airflow and RD with the condition of cuttingadvancing support dust sources, and this study further 2017年8月11日 Estimation of effectiveness throughout extended life time of coal mine enterprises by using fully mechanized solid waste dense stowing mining method Applied Coal Mine/Name Extented Life Time/Y earGreen and Sustainable Mining: Underground Coal Mine Fully Mechanized 2024年1月23日 The scientific and reasonable width of coal pillars is of great significance to ensure safe and sustainable mining in the western mining area of China To achieve a precise analysis of the reasonable width of coal pillars in fully mechanized caving face sections of gently inclined coal seams in western China, this paper analyzes and studies various factors that Construction and Application of an Intelligent Prediction Model 2024年3月14日 The proposed algorithm is validated on the coal mining dataset DsLMF+, achieving a compression rate of 40% on the model volume with less than a 1% drop in accuracyCMYOLOv8: Lightweight YOLO for Coal Mine Fully Mechanized Mining
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Influence of air supply on coal spontaneous combustion during support
2021年9月29日 where \(\alpha\) is the oxidation correction coefficient of the leftover coal in the heat dissipation zone, which is typically in the range of 03–05 for fully mechanized mining faces; \({X}{1 In the context of the complex geological conditions such as large thickness variation of thinmediumthick coal seam, development of strike fault and broken roof in Southwest China, intelligent fully mechanized mining support technology and equipment for thinmediumthick coal seam are proposedThrough the implementation of grouting reinforcement and rooflifting Intelligent fully mechanized mining support technology and 2024年5月22日 Paste backfill mining is an significant part of green coal mining, which can improve resource utilization and extend the service life of mines It is important for solving the “three under, one above” mining problem and Study on the Partial Paste Backfill Mining 2013年11月1日 Fully mechanized mining with large mining height (FMMLMH) is widely used in thick coal seam mining face for its higher recovery ratio, especially where the thickness is less than 70 mHowever, because of the great mining height and intense rock pressure, the coal wall rib spalling, roof falling and the instability of support occur more likely in FMMLMH working System dynamics model of the supportsurrounding rock system in fully
A Review of Intelligent Unmanned Mining
2022年1月12日 Intelligent unmanned mining is a key process in coal mine production, which has direct impact on the production safety, coal output, economic benefits and social benefits of coal mine enterprises With the rapid 2020年1月1日 Combining experimental measurements and field tests, a negativelypressured spraying collector was developed for the dust source of advancing support in fully mechanized coal mining environments based on the results obtained from the numerical simulation of winddust diffusion law under the action of dust collector using discrete particle model of Dust removal effect of negativelypressured spraying collector for 2023年6月27日 The DsLMF+ dataset of the coal mine image in the fully mechanized longwall mining face has been publicly available at the figshare data repository 33Data annotations include YOLO format and COCO An open dataset for intelligent recognition and classification 2019年12月1日 A mathematical hydraulic support selftracking model for threemachine cooperative mining is proposed to address low efficiency and difficulties in strategy evaluation of a fully mechanized coal faceAn operation optimization method of a fully mechanized coal mining
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CMYOLOv8: Lightweight YOLO for Coal Mine Fully Mechanized Mining
2024年1月25日 The underground coal mine production of the fully mechanized mining face exists many problems, such as poor operating environment, high accident rate and so on2013年11月1日 Semantic Scholar extracted view of "System dynamics model of the supportsurrounding rock system in fully mechanized mining with large mining height face and its application" by Y Yong et al The roof falling accident is a serious threat to the lives of miners in deep coal mining, especially when the coal mine is more than 1000 meters deep System dynamics model of the supportsurrounding rock system in fully 2022年6月1日 Dust is one of the inherent products of coal mining, in which the problem of dust pollution in fully mechanized mining face is particularly prominent, seriously pollutes the working environment and causes occupational diseases such as pneumoconiosis [1], [2], [3]According to the US Department of labor, continuous and prolonged exposure to high concentrations of Numerical analysis of dust pollution evolution law caused by 2022年4月14日 Secondly, the carbon emission accounting model (BR model) of fully mechanized coal mining is established, which includes the total amount of carbon emissions and the carbon emissions of each Research on a Carbon Emission Calculation Model and
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An operation optimization method of a fully mechanized coal mining
2019年12月2日 A mathematical hydraulic support selftracking model for threemachine cooperative mining is proposed to address low efficiency and difficulties in strategy evaluation of a fully mechanized coal face The proposed model uses the coordinates and traction speed of the shearer to calculate the frequency of the circular hydraulic support and realize the coordinated 2021年9月23日 The stability of tailgate plays an important role in the safety mining of working face In the present work, a tailgate of Tongxin mine in north Shanxi Province, China, has been taken as the research background; the nonrepeated and longdistance advance support technology (NLAST) has been studied by theoretical analyses and field practice The lateral Nonrepeated advance support technology: a fully mechanized Fully mechanized top caving mining of steeply inclined extrathick seams with variable angles has complex roof rock movement, failure, caving, and filling mechanisms Moreover, the variableangle coal seams make rock–equipment stability control challenging We analyzed rock deformation and failure mechanisms, overburden bearing structures, and working Stability Mechanism and Control Technology for Fully Mechanized 2022年6月4日 A smart fully mechanized coal mining working face is comprised of various heterogeneous equipment that work together in unknown coal seam environments The goal is to form a smart operational system with comprehensive perception, decisionmaking, and control This involves many work points and complex coupling relationships, indicating it needs to be A virtual test and evaluation method for fully mechanized mining
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Research on an Intelligent Mining Complete System of a Fully Mechanized
2023年11月8日 In order to effectively solve the problems existing in thin coal seam mining, Binhu Coal Mine has established intelligent fully mechanized mining and actively explored automatic coal cutting 2014年9月1日 Fully mechanized mining (FMM) technology has been applied in Chinese coal mines for more than 40 years At present, the output of a FMM face has reached 10million tons with Chinesemade equipmentDevelopment and prospect on fully mechanized mining in Chinese coal mines2020年2月22日 1 INTRODUCTION Since the technology of fully mechanized topcoal caving (FMTC) was first applied in the 1950s, with full development, it has become one of the landmark achievements in the field of coal mining in China, 1 and been recognized around the world 2, 3 The studies of basic theories of FMTC mainly focus on the relationship between supports and Evolution of mining‐induced stress in fully mechanized top‐coal 2017年8月11日 The fully mechanized solid dense stowing mining technology has been implemented in more than 35 state owned key coal mines in China, such as Jizhong energy Xingtai coal mine, Jining Huayuan coal mine, Pingdingshan Tian’an No 12 coal mine, Shandong Energy Group, Xuhzou Sanhejian coal mine, etcGreen and Sustainable Mining: Underground Coal Mine Fully Mechanized
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Research and Practice on Filling Technology of Fully Mechanized Coal
2021年9月3日 Taking the fully mechanized mining face (FMMF) through the abandoned roadway (AR) in a coal mine in Shanxi Province, China as the engineering background, the field investigation, theoretical analysis, numerical simulation and field test were comprehensively used to study the instability mechanism of the trend AR The deformation and failure evolution of the 2023年11月8日 The mining environment of thin coal seam working faces is generally harsh, the labor intensity is high, and the production efficiency is low Previous studies have shown that thin coal seam mining finds it difficult to follow machines, does not have complete sets of equipment, has a low degree of automation, and has difficult system cocontrol, which easily causes Research on an Intelligent Mining Complete System of a Fully Mechanized