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
Sales of coal gangue accounting
Life cycle assessment and environmental cost accounting of coal
2018年4月1日 In this study, the life cycle assessment (LCA) method was adopted to analyze the environmental impact of coalfired power generation in China Further, the relevant cost theory 2019年12月1日 The utilization amount of coal gangue was 480 million tons in 2013, accounting for 64% of the total output, of which approximately 150 million tons of coal gangue were used Comprehensive utilization and environmental risks of coal gangue: 2024年6月4日 According to the statistical data of the new output of coal gangue in the major coalproducing provinces in 2018, the new output of coal gangue in the nine major coal Characteristics of Coal Gangue and Present Situation and Prospect 2019年12月1日 Therefore, the main objective of this paper is to provide a comprehensive literature review of coal gangue utilization in building material production, energy generation, Comprehensive utilization and environmental risks of coal gangue:
Lowcarbon utilization of coal gangue under the
2023年5月25日 Coal gangue, produced during coal mining and processing [1, 2], is one of the most extensively produced solid wastes in China [1, 3], accounting for approximately 10%‒20% of raw coal production [4] The Therefore, addressing the water, atmospheric, and soil environmental pollution caused by coal mining and coal gangue accumulation, this paper summarizes the relevant research progress Current situation and progress of coal gangue resource utilization2023年12月8日 Before coal is used, coal and gangue must be effectively separated to reduce the gangue content in the raw coal and improve the efficiency of coal utilization This study introduces a classification method for Coal and Gangue Classification Based on Laser 2020年2月5日 Among the fossil fuels, coal is a primary contributor to global GHG with substantial emissions generated during its mining and combustion process Coal gangue, a Characterization studies on coal gangue for sustainable geotechnics
Research on Coal Gangue Recognition Based on Multi
2023年7月5日 In order to realize the balance between loss reduction mining and solid waste emission reduction in top coal caving, this study establishes an MSTFDFFbased coal gangue recognition model, which can accurately judge 2022年4月6日 “Effect of coal gangue particle size on its leaching characteristics” In GeoCongress 2020: GeoSystems, Sustainability, Geoenvironmental Engineering, and Unsaturated Soil Mechanics, Geotechnical Special Publication 319, edited by J P Hambleton, R Makhnenko, and A S Budge, 107–114The Sustainable Utilization of Coal Gangue in Geotechnical and 2024年6月28日 The longterm storage of coal gangue (CG) mountains causes serious environmental problems such as water and air pollution Thus, sustainable reclamation practices are urgently needed to minimize Feasibility Analysis of BacterialTreated Coal Gangue for Soil 2014年1月21日 Backtracking and verifying volumes and quality of coal sales and consumption can 477% of the gross raw coal output Gangue was 296 Mt, accounting for 179% of theEstimation of CoalRelated CO2 Emissions: The Case of China
Release and Transformation Characteristics of Modes of
2018年8月19日 To evaluate the release and transformation characteristics of different forms of Cl in coal gangue during combustion, the effect factors of combustion temperature, combustion time and air flux 2024年2月1日 Coal is not only the most abundant fossil fuel on earth, but also an indispensable energy source in the industrial age According to the data of “2021 National Mineral Resources Reserve Statistics Table”, the cities with the most coal reserves in China's energy minerals are Inner Mongolia, Xinjiang, Shanxi, Hebei, Chongqing, Gansu, Shaanxi and other regionsRepresentative coal gangue in China: Physical and chemical 2020年5月15日 Coal ganguebased geopolymer (CGGP) is one of the hot spots existing in the recycling of coal gangue resources due to its good comprehensive mechanical properties accounting for 6688%, Experimental Study on the Characteristics of Activated Coal Gangue 2022年6月26日 PDF Coal gangue is a kind of industrial solid waste with serious ecological and environmental implications sumption is very large, accounting for about 70–80% of the concrete volume [12]Using Chinese Coal Gangue as an Ecological Aggregate and Its
Comprehensive utilization and environmental risks of coal gangue: A
2019年12月1日 The utilization amount of coal gangue was 480 million tons in 2013, accounting for 64% of the total output, of which approximately 150 million tons of coal gangue were used for power generation (32%), 56 million tons for the production of building materials (12%), and 260 million tons for land reclamation (56%) (National Development and Reform Commission, 2014)2023年9月19日 At present, the cumulative storage of coal gangue in China exceeds 7 billion tons, covering an area of approximately 70 km2 The engineering application of unburned coal gangue is mainly utilized Road Performance Evaluation of Unburned Coal Gangue in Cold 2024年6月28日 The longterm storage of coal gangue (CG) mountains causes serious environmental problems such as water and air pollution Thus, sustainable reclamation practices are urgently needed to minimize the environmental impacts brought by CG mountains Pikovskaya medium was employed to screen microorganisms, which were subsequently Feasibility Analysis of BacterialTreated Coal Gangue for Soil2022年12月1日 Coal gangue, a waste produced during coal mining, has been regarded as the largest source of industrial waste in China It is estimated that the production of 1 t coal generates 01–025 t coal gangue [1], and the total stockpile of coal gangue exceeds 6 billion tons in China [2], [3]The coal gangue not only occupies agricultural land in large areas but triggers Exploring calcined coal gangue fines as the total substitute of fly
Experimental Study on the Characteristics of Activated Coal Gangue
Table1shows that the main chemical components of asreceived coal gangue were SiO2 and Al2O3, accounting for 6688%, coal gangue (named as 700 CCG, 800 CCG and 900 CCG respectively)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 2023年8月31日 The coal gangue is crushed and screened in the coal preparation plant to form small particles (less than 6 cm) These particles are then paved into a roadbed with a thickness of about 35 cm After compaction, the density can reach 18 t/m 3 so that the roadbed has good waterproof performance and durability and is more costeffectiveHow to Recycle and Process Coal Gangue: 7 Effective Ways2021年6月18日 The accumulation/improper treatment of coal gangue will not only lead to waste of land, but also cause environmental pollution Especially the impact of radioactive elements on the surrounding Basic Characteristics of Coal Gangue in a SmallScale Mining Site
Underground Disposal of Coal Gangue Backfill in China
Appl Sci 2022, 12, 12060 3 of 18 ble is limited [41] More than 35% of coal gangue still exists in the form of waste heaps [42] Given the huge annual production of coal gangue in China, the 2024年6月17日 In order to effectively mitigate the oxidation reactions of coal (RC) and gangue (RG) at low temperatures, a comprehensive study was conducted on the mineral composition, structural characteristics, and oxidation behaviors of RC and RG from the same coal seam Additionally, the thermodynamic attributes of their oxidation processes were evaluated The Structural characteristics and lowtemperature oxidation 2021年11月1日 Coal gangue (CG) is a kind of solid waste discharged from the process of coal mining and washing without efficient utilization Motivated by using the CG as supplementary cementitious materials Mechanism of thermal activation on granular coal gangue and its 2023年9月12日 1 The realtime detection method for coal gangue based on YOLOv8sGSC Kaiyun Chen1,3,*,Bo Du1,3,Yanwei Wang1,3,Guoxin Wang2,3,Junxi He1,3 1School of Mechanical Engineering, Heilongjiang University The realtime detection method for coal gangue based on
Research on Recognition of Coal and Gangue Based on Laser
2023年11月11日 Coal gangue image recognition is a critical technology for achieving automatic separation in coal processing, characterized by its rapid, environmentally friendly, and energysaving nature However, the response characteristics of coal and gangue vary greatly under different illuminance conditions, which poses challenges to the stability of feature extraction 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 Gangue grouting filling in subsequent space of coal green mining 2023年10月26日 In order to find a better collector for the separation of carbon and kaolin from coal gangue flotation, and to explore the action mechanism of collectors, this paper selected 12 kinds of (PDF) Research on the Preparation of Kaolin from Coal 2022年11月9日 The feasibility of compositeactivated coal gangue (CACG) as the primary cementitious material for concrete was experimentally studied in this paperMechanical Properties and Drying Shrinkage of AlkaliActivated Coal
Experimental Investigation on Gallium and Germanium Migration in Coal
2024年4月29日 3 shows that coal gangue contained SiO 2 and Al 2 O 3, accounting for 5507% and 2644%, respectively The other components were Fe 2 O 3 , K 2 O, TiO 2 , CaO, MgO, and P 2 O 5 in order2024年7月5日 Carbon emission accounting is the basic premise of effective carbon emission reduction and management This study aimed to establish the carbon emission model and performance evaluation framework of coal mine production enterprises and clarify the lowcarbon development path of enterprises In this study, we took a typical coal production enterprise (K Lowcarbon development path based on carbon emission accounting 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 coal gangues, several coal Excess sulfur and Fe elements drive changes in soil and Nature2022年11月25日 China’s total coal production in 2021 exceeded 413 billion tons, 52% of the world’s total Coal gangue, a solid waste of coal mining accounts for 15–20% of coal production, when directly (PDF) Underground Disposal of Coal Gangue Backfill in China
(PDF) Activation Mechanism of Coal Gangue and Its Impact on
2022年9月15日 PDF Coal gangue is one of the industrial solid wastes that may harm the human body through the ecosystem for a long time accounting for 5–7% of global anthropogenic CO 2Appl Sci 2022, 12, 12060 3 of 18 ble is limited [41] More than 35% of coal gangue still exists in the form of waste heaps [42] Given the huge annual production of coal gangue in China, the Underground Disposal of Coal Gangue Backfill in China2018年4月1日 Global warming was the most serious midpoint impact category in the coal mining stage, accounting for 4436% (Fig 2) The mine gas emissions and spontaneous combustion of coal gangue produce a large amount of greenhouse gases, especially CH 4 Life cycle assessment and environmental cost accounting of coal 2010年10月1日 Coalmining induced subsidence has caused damage to buildings, land, and the ecological environment (Chen et al 2022;Woo et al 2013;Ghabraie et al 2015Ghabraie et al , 2017Ju and Xu 2015;Wang Recycling Utilization Patterns of Coal Mining Waste
Research on light weight intelligent identification method of coal
2024年4月26日 During the extraction and processing of coal, a large amount of solid waste, collectively known as gangue, is produced This gangue has a low carbon content but a high ash content, accounting for 2024年9月20日 Coal gangue contains a portion of clay minerals, and after thermal activation of about 700 ℃, the kaolinite in calcined coal gangue (CCG) can be transformed into metakaolin, which has pozzolanic activity and can be used as supplementary cementitious materials (SCMs) [10], [11], [12]This can not only consume a large portion of discharged coal gangue, but also Improvement of strength and microstructure of lowcarbon 2018年4月1日 The main byproduct of coal is coal gangue, accounting for 1520% of the total production mass [1] Coal gangue has become one of the most massive industrial solid wastes in the United States, Study on the release characteristics of chlorine in coal gangue 2017年12月20日 Coal gangue is one of the largest industrial residues It has high ash content, low carbonaceous content, and heating value Meanwhile, it has some trace elements Large quantities of coal gangue cause serious environmental problems by polluting the air, water, and soil as well as occupying a tremendous amount of land Now, coal gangue utilization is a Trace Elements in Coal Gangue: A Review IntechOpen
Research on Recognition of Coal and Gangue Based on Laser
2023年11月11日 Coal gangue image recognition is a critical technology for achieving automatic separation in coal processing, characterized by its rapid, environmentally friendly, and energysaving nature2021年11月23日 The recognition and sorting of coal and gangue are an important part of the process of reducing costs and improving production efficiency In this paper, under the influence of long running Recognition and sorting of coal and gangue based on image 2024年11月1日 Coal gangue: The coal gangue (CG) used in this study is untreated raw coal gangue, sourced from Lingshou County, Hebei Province, or they are accounting data calculated from these primary sources Background data refer to basic inventory data such as raw material extraction and energy production, typically derived from public Synergistic performance of microwaveactivated coal gangue with 2024年8月12日 The coal gangue dump may introduce heavy metal(oid)s (HMs) into surrounding agricultural soils, posing potential health risks to nearby communities This study evaluated heavy metal(oid) pollution Assessment of heavy metal(oid) pollution and related health risks
A review of coal gangue identification research—application to
2022年12月26日 Top coal caving is a process for the rational extraction of large amounts of coal resources However, this process readily causes release of excessive amounts of gangue during the coal release process The conventional technique, which involves visual inspection, is not only laborintensive but also can introduce inaccuracies Coal and gangue identification methods