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
Realize the effective application of coal gangue
Opportunities, challenges and modification methods of coal gangue
2024年9月7日 Given the coal gangue properties and global land degradation severity, the resourceful utilization of coal gangue as soil conditioners is believed to be a universally applicable, costeffective, highdemand and environmentfriendly model with broad application prospect2024年2月1日 Based on the source and distribution of coal gangue (CG) in China, this study introduces the current situation of CG storage in China and the problems existing in the Representative coal gangue in China: Physical and chemical 2020年2月20日 Thermal temperature and fineness are critical in activation of coal gangue (CG) Compound activation is most effective way in enhancing the reactivity of CG Activated CG as Reactivity activation of waste coal gangue and its impact on 2024年11月24日 Using an L16 (4^3) orthogonal experimental design, systematically investigated the effects of three factors, ie, coal gangue, a waterretaining agent, and bentonite, applied at The use of coal gangue as a planting substrate in arid mining
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The Sustainable Utilization of Coal Gangue in Geotechnical
2022年4月6日 Among coal miningrelated wastes, coal gangue (CG) is the heterogeneous waste generated during the mineral processing or coal washing phase of coal mining A 2023年11月6日 Intelligent coal gangue separation equipment has the advantages of fast speed, high precision, strong modularity, and integration scalability It also has the advantages of low operation cost and energy Full article: A review of intelligent coal gangue Using coal gangue as a fertilizer has been proven helpful in potentially reducing its environmental impact and improving its value In this study, the formation mechanism and influencing factors Sustainable and clean utilization of coal gangue: activation 2024年6月4日 Power generation is the most effective way to use coal gangue (Tianqi 2019) There are 230 low calorific value fuel power plants including coal gangue in China, with a total Characteristics of Coal Gangue and Present Situation and
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Research Progress on Comprehensive Utilization
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 useful components such 2019年12月1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 Comprehensive utilization and environmental risks of coal gangue2024年11月1日 Coal is one of the most valuable fossil fuels, and will continue to be in demand in the foreseeable future Coal gangue, a byproduct rock with low carbon content cogenerated with the coal seam during the coal formation process, is a solid waste that needs to be discharged during coal mining and washingClassification of coal gangue and identification of coal type 2019年12月1日 The accumulation of considerable coal gangue not only occupies a great deal of land resource, but also results in serious environmental problems, eg, soil pollution, air pollution, and geologic hazards (Stracher and Taylor, 2004)The heat continues to accumulate during the accumulation process, which leads to spontaneous combustion with the oxidization of coal Comprehensive utilization and environmental risks of coal gangue: A
Comprehensive utilization and environmental risks of coal gangue
Investigation into trace element partitioning behavior from a coal ganguefired power plant in Shanxi province, China, has been conducted and showed that Hg, As, Be, and Cd were highly volatile elements in the combustion of coalgangue, which were notably enriched in fly ash and may be emitted into the environment via the gas phase2024年4月1日 Due to advancements in science and technology and the increased need for efficient utilization of coal gangue, the application scope of coal gangue has expanded significantly, owing to its complex composition and characteristics (Fig 3) The utilization of coal gangue resources has evolved from basic practices such as filling pits for road Environmental hazards and comprehensive utilization of solid waste coal 2024年8月2日 China is rich in coal resources, a large number of solid wastecoal gangue will be produced in the process of coal mining About 7 billion tons of coal gangue accumulated in mining areas, resulting in the land occupation, environmental pollution and even geological disasters [1,2,3]Thus, the utilization of coal gangue in situ has become an urgent issue to be solvedStudy on Permeability Performance and Prediction Model of Coal Gangue 2022年9月30日 Coal gangue (CG) is a type of industrial solid waste produced by the process of coal excavation and separation 1,2,3 Generally, one ton of CG is discarded for every 10 tons of produced coal 4 , 5 Preparation of coal gangue ceramsite highstrength
Utilization of coal gangue as coarse aggregates in structural
2021年1月25日 In China, coal gangue accounting for 1/10, even 1/5 of coal production, is one of the major industrial and mineral residues The stock of coal gangue in China has reached a billion level, with an increasing rate of 150–200 million per year [7], [8]How to utilize the stacked coal gangue is a serious topic in mining industry and construction industry2023年5月25日 The treatment and utilization of coal gangue, one of the main solid wastes produced during coal mining, are of great significance in environmental protection and resource development In the contemporary context of the carbon neutralization strategy, due to the property of the carbon in coal gangue, it is necessary to be cautious of the carbon effect during Lowcarbon utilization of coal gangue under the carbon 2024年6月4日 The coal industry is an important pillar industry of economic development in China, with coal mining produced a lot of coal gangue, which is occupied land, and pollution of the environment, and the production and life of coalproducing areas have been seriously affected, coal gangue has become a heavy burden restricting the sustainable development of coal Characteristics of Coal Gangue and Present Situation and 2024年10月10日 Coal mining generates coal gangue (CG), whose poses considerable ecological challenges Therefore, using CG in the preparation of electromagnetic wave (EMW)absorbing materials has emerged as a promising approach for its highvalue utilization In this study, CG was dried and then ball milled The microscopic morphology, element composition, Coal gangue as an efficient absorber for Xband applications
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Fabrication and application of porous materials
2023年2月1日 Coal gangue, which is mainly generated during coal excavation, mining, and coal washing, is an industrial solid waste that is recognized as an environmental pollutant The ever –2022年11月1日 To realize the effective utilization of the industrial waste coal gangue, in this study, βSiAlON multiphase ceramic material was successfully prepared using coal gangue as main raw materialIntegrated utilization of coal gangue for 2024年3月22日 To realize the effective utilization of the industrial waste coal gangue, in this study, βSiAlON multiphase ceramic material was successfully prepared using coal gangue as main raw materialIntegrated utilization of coal gangue for synthesis of β 2024年2月1日 Representative coal gangue in China: Physical and chemical properties, heavy metal coupling mechanism and risk assessment is a technical advancement that improves the pore structure inside CG concrete and enables its application with larger content However, few scholars have noticed the harm of heavy metal leaching in coal gangue to the Representative coal gangue in China: Physical and chemical
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Research Progress on Comprehensive Utilization and
2021年1月1日 Reusing different mine gangue is an effective method to reduce environmental hazards around the processing plants In this study, coal gangue (CG) of Anjirtangeh coal washing plant with high 2024年1月13日 To address the technical limitations of automatic coal and gangue detection technology in fully mechanized top coal caving mining operations, the low radiation level radioactivity measurement Precise detection of coal and gangue based on natural γray2023年11月6日 Traditional Coal Gangue Separation Process and Equipment Water washing and dry coal preparation are the main parts of coal preparation Spiral separation, jigging, heavy medium separation, and other processes are water washing processes, which have the advantages of mature technology, high separation accuracy, and large processing capacity Full article: A review of intelligent coal gangue separation 2024年3月11日 Although the calcinationbased activation of coal gangue is important for its valorization in the form of cementitious materials, the related works mainly focus on highquality coal gangue, neglecting its lowquality counterpart To bridge this gap, we herein conducted the pilotscale suspension calcination of lowquality coal gangue; explored the effects of Activation of LowQuality Coal Gangue Using Suspension
Gangue grouting filling in subsequent space of coal green
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 operations However, existing backfilling techniques have led to increased production processes at the working face, resulting in a reduction in coal extraction efficiency Addressing the temporal and spatial interference 2023年3月1日 At this stage, coal gangue separation methods can be divided into wet gangue separation and dry gangue separation according to whether water resources are consumed [7]In the prospect of the development of coal science and technology during the “14th FiveYear Plan” of China's coal industry, the intelligentization of dry coal preparation is regarded as one of the Recognition method of coal and gangue combined with 2023年6月1日 Over the years, the coal gangue piles produced in China have reached 6 billion tons Moreover, the discharge of coal gangue is 500–800 million tons every year [1] Coal gangue has become the largest industrial solid waste in China A great amount of coal gangue currently occupies the farmland,Investigation on activation technology of selfheating2024年2月23日 To address the issues of complex algorithm models, poor accuracy, and low realtime performance in the coal industry's coal gangue sorting, a lightweight realtime detection method called YOLOv8sGSC is proposed based on the characteristics of coal gangue This method incorporates the ghost module into the YOLOv8s backbone network to reduce the The realtime detection method for coal gangue based on
Enhancing the carbon content of coal gangue for
2024年5月1日 Coal plays a crucial role as a mineral resource worldwide However, approximately 10 %–15 % of mined coal remains as commercially worthless coal gangue after the mining and purification process is completed (Li and Wang, 2019)The utilization of coal gangue inevitably leads to secondary environmental pollution through processes such as combustion, 2023年9月21日 In this study, the research aim is to enhance the activity index of activated coal gangue and study its activation mechanism The activation process of coal gangue was optimized through orthogonal tests, and the BackPropagation (BP) neural network model was improved using a genetic algorithm With the effects of grinding duration, calcination temperature, and Study on the Reactivity Activation of Coal Gangue for Among the techniques for converting stacked coal gangue to reusable material, one of the most effective ways is to use coal gangue as a coarse aggregate in green concrete productionsPhysical properties of coal gangue aggregate from different 2021年8月24日 In Tangshan Mine, there are four engineering problems, including the layout of multiple seam mining system, serious environmental damages caused by gangue accumulation and surface collapse, nearly 100 million tons of three under coal (coal trapped under buildings, water bodies, and railways) to be released, and the control accuracy of stratum formations to Integrated green mining technology of “coal mininggangue
Migration transformation, prevention, and control of typical
2023年12月8日 Coal gangue is one of China’s main industrial solid wastes, which contains various harmful heavy metal elements, such as lead (Pb) The longterm accumulation of coal gangue causes Pb to migrate to the surrounding environment due to weathering and rain erosion, eventually endangering human life and health with its continuous accumulation in the food 2024年4月16日 Coal gangue is one of the industrial solid wastes with the largest land occupation and annual increment/emission, which causes serious environmental pollution In this review, advantages and disadvantages of coal gangue resource utilization ways and requirements for basic physicochemical components of coal gangue are analyzed, the composition of coal Research progress on resource utilization of coal gangue in 2020年7月23日 Hence, in the current study, the coal gangue from a nearby Bhupalpally coal mines was investigated for its geotechnical properties and the relative savings in the carbon footprint attainable for a typical case construction of 1 million m3 of embankment In order to use coal gangue material in geotechnical applications, it is pulCarbon Footprint Analysis of Coal Gangue in 2019年12月1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 Comprehensive utilization and environmental risks of coal gangue
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Classification of coal gangue and identification of coal type
2024年11月1日 Coal is one of the most valuable fossil fuels, and will continue to be in demand in the foreseeable future Coal gangue, a byproduct rock with low carbon content cogenerated with the coal seam during the coal formation process, is a solid waste that needs to be discharged during coal mining and washing2019年12月1日 The accumulation of considerable coal gangue not only occupies a great deal of land resource, but also results in serious environmental problems, eg, soil pollution, air pollution, and geologic hazards (Stracher and Taylor, 2004)The heat continues to accumulate during the accumulation process, which leads to spontaneous combustion with the oxidization of coal Comprehensive utilization and environmental risks of coal gangue: A Investigation into trace element partitioning behavior from a coal ganguefired power plant in Shanxi province, China, has been conducted and showed that Hg, As, Be, and Cd were highly volatile elements in the combustion of coalgangue, which were notably enriched in fly ash and may be emitted into the environment via the gas prehensive utilization and environmental risks of coal gangue2024年4月1日 Due to advancements in science and technology and the increased need for efficient utilization of coal gangue, the application scope of coal gangue has expanded significantly, owing to its complex composition and characteristics (Fig 3) The utilization of coal gangue resources has evolved from basic practices such as filling pits for road Environmental hazards and comprehensive utilization of solid waste coal
Study on Permeability Performance and Prediction Model of Coal Gangue
2024年8月2日 China is rich in coal resources, a large number of solid wastecoal gangue will be produced in the process of coal mining About 7 billion tons of coal gangue accumulated in mining areas, resulting in the land occupation, environmental pollution and even geological disasters [1,2,3]Thus, the utilization of coal gangue in situ has become an urgent issue to be solved2022年9月30日 Coal gangue (CG) is a type of industrial solid waste produced by the process of coal excavation and separation 1,2,3 Generally, one ton of CG is discarded for every 10 tons of produced coal 4 , 5 Preparation of coal gangue ceramsite highstrength 2021年1月25日 In China, coal gangue accounting for 1/10, even 1/5 of coal production, is one of the major industrial and mineral residues The stock of coal gangue in China has reached a billion level, with an increasing rate of 150–200 million per year [7], [8]How to utilize the stacked coal gangue is a serious topic in mining industry and construction industryUtilization of coal gangue as coarse aggregates in structural 2023年5月25日 The treatment and utilization of coal gangue, one of the main solid wastes produced during coal mining, are of great significance in environmental protection and resource development In the contemporary context of the carbon neutralization strategy, due to the property of the carbon in coal gangue, it is necessary to be cautious of the carbon effect during Lowcarbon utilization of coal gangue under the carbon
Characteristics of Coal Gangue and Present Situation and
2024年6月4日 The coal industry is an important pillar industry of economic development in China, with coal mining produced a lot of coal gangue, which is occupied land, and pollution of the environment, and the production and life of coalproducing areas have been seriously affected, coal gangue has become a heavy burden restricting the sustainable development of coal