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
Geological disasters caused by coal gangue mountain
Characteristics of Coal Gangue and Present Situation and Prospect
2024年6月4日 The main hazards of coal gangue are environmental pollution, soil, and water pollution, and lead to geological disasters Harm to the atmospheric environment The loose 2019年12月1日 In addition, disorderly stacking of coal gangue may trigger debris flow, landslides and other serious geological disasters, threatening the surrounding ecological environment, Comprehensive utilization and environmental risks of coal gangue: 2024年9月7日 Severe soil degradation has occurred in onethird of the world as a result of soil erosion, desertification, salinization, compaction, and pollution (Hou et al 2020), thereby Opportunities, challenges and modification methods of coal 2020年7月6日 Open stacked gangue hills have steep slopes and can experience spontaneous combustion, while rain and other influence factors make the internal structure loose, which Research on the technology of detection and risk assessment of
Excess sulfur and Fe elements drive changes in soil and Nature
2020年6月26日 Coal gangue piles accumulate outside mines and can persist for years, negatively impacting the regional environment To determine the main cause of soil pollution at Based on the geological conditions and gangue in Tangshan Coal Mine in Hebei Province, China, the confined compression test of gangue was carried out by the selfdesigned bearingcompression device; the compaction characteristics OnSite Measurement on Compaction Characteristics 2021年5月1日 The disorderly accumulation of coal gangue not only occupies a large amount of land resources and causes natural disasters, but also pollutes the surrounding ecological Review of Coal Gangue Characteristics and Ecological Restoration 2019年12月1日 In addition, disorderly stacking of coal gangue may trigger debris flow, landslides and other serious geological disasters, threatening the surrounding ecological environment, Comprehensive utilization and environmental risks of coal gangue:
Sustainable Development of Resources and the
2019年8月12日 However, largescale, extremely intense coal mining activities will inevitably lead to further deterioration of the already fragile ecological and geological (ecogeological) environment, which 2015年8月10日 There are large areas of spontaneous coal combustion in northern and northwestern China The quantification of greenhouse gas (GHG) emissions resulting from spontaneous coal combustion is an important step Experimental Study on Greenhouse Gas Emissions Results from the spontaneous combustion of the coal gangue mountain of Yangquanyi Coal Mine in Shanxi Province and Xintaiyi Village Coal Mine in Shandong Province, as depicted in Fig 1, have Location and geological profile of coal mine2021年5月1日 Coal gangue has become one of the industrial wastes with the largest annual discharge and accumulated stock in China The disorderly accumulation of coal gangue not only occupies a large amount of Review of Coal Gangue Characteristics and Ecological Restoration
Geological disaster prevention and control and resource
2019年2月23日 1 INTRODUCTION Geological hazards are classified as natural hazards according to their causes In addition to geological hazards’ damages to personal and property safety, the subsequent series of secondary disasters will bring greater losses to people []Since the 21st century, the economic development of China has been more and more rapid, at the 2023年12月8日 Spontaneous combustion of coal gangue dumps not only releases toxic and harmful gases, polluting the environment, but also leads to explosion accidents and casualties due to improper handling This paper focuses on delineating the fire area, constructing a comprehensive fire prevention and extinguishing system, and restoring the ecological Detection of Spontaneous Combustion Areas of Coal Gangue 2023年5月26日 Underground coal fires are a widespread disaster prevailing in major coalproducing countries globally, posing serious threats to the ecological environment and restricting the safe exploitation of coal mines The accuracy of underground coal fire detection directly affects the effectiveness of fire control engineering In this study, we searched 426 articles Research progress and visualization of underground coal fire Coal and gas outbursts are great natural disasters in underground coal mines, seriously threatening the lives of miners and coal mine safety The study of the relationship between coal and gas outbursts and geological structures has always been an important component of gas geological work, and it also serves as a foundation for coal mines to develop gas outburst Discussion on the Main Control Effect of Geological Structures on Coal
(PDF) Geological disaster prevention and control and resource
2019年6月1日 In view of the potential safety hazards caused by geological hazards in mines, establishment of disaster information base and strengthening of measures for disaster prevention and control were 2010年5月1日 The problems of low resource recovery rate and serious waste caused by the traditional coal pillar mining method have become increasingly prominent with the decrease of coal resourcesThe fundemental theoretial and engineering research on the green 2022年12月13日 Taihang Mountain, is rich in mineral The geological disasters caused by manma de causes are mainly related to the residues and coal gangue on both sides of the riverAnalysis on Geological Environment Problems in Coal Sustainability 2022, 14, 15425 4 of 21 From the perspective of the inducements of secondary coal mine accidents caused by geological disasters, there were 18 landslide accidents, accounting for 72 Study on the Mechanism and Chain Generation Relationship of Geological
Preparation of CalciumBased Coal Gangue Based on Response
2024年7月16日 Coal gangue is complex industrial solid waste produced in the process of coal mining and washing 6 The production of coal gangue accounts for 10–25% of total coal production 7 A large amount of accumulated coal gangue not only occupies land but also causes geological disasters, air pollution, environmental pollution, and other hazards 8,9 Therefore, 2017年9月18日 Environmental problems caused by coal mining and utilization are becoming increasingly serious In recent times, the ecology, security, and sustainable development of modern mines have become the development theme of coal mining worldwide (Zhang et al 2016a, b; Kong et al 2017a)According to various statistics, coal reserves and recoverable A review on the mechanism, risk evaluation, and prevention of coal 2018年9月11日 A volcanic eruption is a type of geological disaster A geological disaster happens when natural geological forces cause wanton death and destruction in an area Such disasters can be triggered by a single major event or phenomenon or a combination of two or more natural or manmade forces acting together to result in such a disasterThe Different Types of Geological Disasters WorldAtlas2019年3月19日 The abandoned coal mine hidden disasters have been important factors that influencing safety production and social lives Based on the analysis of the types of hidden disasters in abandoned coal (PDF) Environmental Engineering Issues Induced by Abandoned Coal
Research on the fire extinguishing performance of new gel foam
2023年7月12日 Coal gangue, as an associated product of coal mining, can cause a large number of piles to undergo slow oxidation and spontaneous combustion, resulting in the production of toxic and harmful gases, leading to casualties, environmental damage, and economic losses Gel foam has been extensively employed as a fireretardant material in coal 2022年8月26日 Coal fire disaster caused by the spontaneous combustion of coal has always been one of the serious problems that threaten the safety of coal miningStudy on Thermodynamic Characteristics and Heat Transfer Open piles of coal gangue can cause a range of geological disasters, such as collapses and mudslides, which can damage the local ecology and landscape, as well as pose a risk to the ecological security of the mine and human health (Zeng and Shen 2022; Zhao et al 2022) Coal gangue contains around 15% coal and other combustibleResearch on the fire extinguishing performance of new gel foam 2022年5月13日 From 2003 to 2018, after more than 10 years of mine geological environment renovation and management, the surface environment of the coal mining subsidence area greatly improved, among which the (PDF) Surface Environmental Evolution Monitoring in Coal Mining
(PDF) Main geological and mining factors affecting ground cracks
2020年3月20日 As one of the largest coalrich provinces in China, Shanxi has extensive underground coalmining operations These operations have caused numerous ground cracks and substantial environmental damageof problems such as geological disasters and air and water pollution to the surrounding areas of the mining area, hindering the green development of cities3 At the same time, inside the coal gangue mountain is studied and the relationship between the concentration of relevant gases and temperature is analyzedNumerical Simulation of the Dynamic Change Law of Spontaneous 2014年6月1日 Combining the governance situation of the main coal gangue heap in Shanxi LuAn group, aiming at different geographical conditions and governance effect of subsidence basin water area caused by The Geological Environment Governance of the Coal Gangue and Coal 2020年4月18日 Xie H, Wang MC (2012) Geological disasters caused by coal mining subsidence in guizhou and types of subsidence areas J Guizhou Univ (Nat Sci Edit) 29(3):128–131 + 135 Xu GQ, Yan JP, Xia XL (2010) Optimization experiment of the proportion of new grouting materials for underground water inrush in coal mine floor Coal Sci Technol 38(12):22–24Experimental Study on Compression Characteristics of Gangue Grouting
(PDF) Editorial: Mine engineering geological disaster forecasting
PDF On Dec 1, 2022, Jie Chen published Editorial: Mine engineering geological disaster forecasting, monitoring, and prevention Find, read and cite all the research you need on ResearchGatespontaneous combustion disasters in reclaimed coal gangue dumps have appeared [19,20] Abramowicz et al [20] found that changes in the health of vegetation in gangue mountainAssessing Potential Spontaneous Combustion of Coal Gangue 2021年8月1日 At present, with the rapid development of geographic information system (GIS) technology, many studies have been carried out on the risk assessment of geological hazards, and fruitful results have been achieved (Lee, 2004; Niu et al, 2012; Su et al, 2017a, Su et al, 2017b)From the perspective of research content, the current geological hazards risk Risk assessment and its influencing factors analysis of geological From 2003 to 2018, after more than 10 years of mine geological environment renovation and management, the surface environment of the coal mining subsidence area greatly improved, among which the vegetation coverage has shown the fastest growth rate, while the area of coal gangue, badlands, and other landuse classes have significantly reducedFrontiers Surface Environmental Evolution Monitoring in Coal
Study on the Mechanism and Chain Generation Relationship of Geological
2022年11月20日 Based on investigating typical cases of secondary coal mine accidents caused by different types of geological disasters, this paper analyzed and studied the disastercausing factors and chain Coal gangue is one of the largest mine solid wastes in China, and its discharge and stockpiling have caused resource waste, environmental pollution and other problems Starting from the resource characteristics of coal gangue, this paper systematically discusses the ways and research status of coal gangue resource utilization, mainly including: extracting and recovering Research Progress on Comprehensive Utilization of Coal Ganguecidents such as gangue mountain collapses, landslides, explosions, and even geological disasters such as debris flows, thereby causing numerous casualties and economic and property losses The above series of pollution problems has caused the destruction of mining area landscapes and pollution of the ecological environment (Song et alResearch on the technology of detection and risk assessment of 2010年3月1日 Coalbased Solumnar coal 33427 093 [48] CBAC 165815 0006 [34] Biomassbased Coconut shell 1687 079 [49] Sugarcane bagasse 1113 05 [50] Apricot stones 1000 na [46] Palm kernel shell 465 063 Environmental issues from coal mining and their solutions
Discussion on Comprehensive Utilization and Ecological
2023年11月21日 The amount of coal gangue, a byproduct of coal mining and washing, is rapidly increasing with the growing trend of energy consumption The accumulated coal gangue without appropriate utilization of a large amount of coal gangue and the failure to fully utilize or dispose it, it caused problems on the environment in the air pollution and water pollution, and triggered some geological disasters such as landslides and coal gangue debris ows [12] Fortunately, coal gangue is a type of lowcarbon, hard black rock with SiO 2 as its main compoSustainable and clean utilization of coal gangue: activation and 2024年11月1日 Using coal gangue as subgrade filler (CGSF) can address the accumulated issues of coal mine waste, but also save the constructing costs, which has the important ecological and engineering Investigating the compaction and the mechanical behaviors of coal As a common geological disaster in China's coal mines, gangue pile explosions have caused many casualties Coal gangue produces acidic wastewaterunder the effect of long term weathering and rainwater drenching, which is characterized by low pH, high sulfate concentration and the presence of heavy metalChen et al IOPscience
Gangue grouting filling in subsequent space of coal green mining
2024年3月27日 Underground backfilling stands out as a crucial technological strategy for the ecofriendly and effective management of solid waste in mining operations2023年8月30日 Multiseam mining often leads to the retention of a significant number of coal pillars for purposes such as protection, safety, or water isolation However, stress concentration beneath these residual coal pillars can significantly impact their strength and stability when mining below them, potentially leading to hydraulic support failure, surface subsidence, and rock Study on the disaster caused by the linkage failure of the residual 2020年7月6日 The spontaneous combustion of coal gangue generates a large amount of toxic and harmful gasses, such as SO 2, CO, H 2 S, and benzo(α)castor, which pollute the atmospheric environment (Wang et al 2016, Li et al 2016; Wang 2013) and are more likely to cause more devastating disasters, such as explosionsRegarding the photovoltaic power plant, the toxic Research on the technology of detection and risk assessment of 2019年1月24日 Due to the continuous development of underground mining methods, technical equipment, the Internet and intelligent technology, a new energy revolution will be of great significance in years to come Meanwhile, the highintensity mining (HIM) of thick coal seams has become an important development direction of China’s underground coal mining technology Negative externalities of highintensity mining and disaster prevention