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
Burned coal gangue
Pozzolanic activity of burned coal gangue and its effects on
The experimental results show that the coal gangue burned at 750 °C has the optimum pozzolanic activity, and the burned coal gangue with SiO 2 and Al 2 O 3 is in an active form2006年12月1日 The experimental results show that the coal gangue burned at 750 °C has the optimum pozzolanic activity, and the burned coal gangue with SiO2 and Al2O3 is in an active Pozzolanic activity of burned coal gangue and its ResearchGate2019年12月1日 Coal gangue, a solid waste generated during coal mining and washing, accounts for approximately 10%–15% of the total coal production The accumulative amount Comprehensive utilization and environmental risks of coal gangue: The experimental results show that the coal gangue burned at 750 °C has the optimum pozzolanic activity, and the burned coal gangue with SiO2 and Al2O3 is in an active formPozzolanic activity of burned coal gangue and its effects on
Representative coal gangue in China: Physical and chemical
2024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 The experimental results show that the coal gangue burned at 750 °C has the optimum pozzolanic activity, and the burned coal gangue with SiO2 and Al2O3 is in an active formPozzolanic activity of burned coal gangue and its effects on 2024年9月7日 Coal gangue is a complex industrial solid waste mixed with organic compounds, inorganic compounds and minerals (Fabiańska et al 2013) Its major chemical compositions Opportunities, challenges and modification methods of coal 2019年12月1日 Coal gangue, a solid waste generated during coal mining and washing, accounts for approximately 10%–15% of the total coal production The accumulative amount Comprehensive utilization and environmental risks of coal gangue:
The Sustainable Utilization of Coal Gangue in Geotechnical and
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 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 Research Progress on Comprehensive Utilization of 2016年1月10日 Coal gangue is a complex industrial solid waste discharged when coal is excavated and washed in the production course of coal mine Its major chemical compositions are SiO 2 and Al 2 O 3, and major mineralogical compositions are kaolinite, illite, and quartzThe amount of coal gangue accumulated in China has already reached 38 billion tons; moreover, Effect of calcination condition on the microstructure and 2022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 discharged on the ground Underground Disposal of Coal Gangue Backfill in
Coal Gangue: Composition, Processing, Use And
2024年1月18日 Coal gangue production of cement Cement production from coal gangue requires “two grinding and one burning”; that is, the coal gangue is combined with a certain proportion of limestone, ground into fine materials, 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 Gangue2020年2月20日 A large amount of coal gangue buildup may be a potential fire hazard associated with the heat released by microorganisms accumulating to the point of spontaneous combustion in the presence of unburned coal, pyrite (FeS 2) and oxygenCoal gangue is likely to cause largescale fire and blast disasters, and produce a significant amount of toxic emissions Reactivity activation of waste coal gangue and its impact on the 2021年8月1日 Coal gangue is a byproduct generated from coal mining and washing Pozzolanic activity of burned coal gangue and its effects on structure of cement mortar J Wuhan Univ TechnolMaterials Sci Ed, 21 (4) (2006), pp 150153, 101007/BF View in Scopus Google ScholarValorization of calcined coal gangue as coarse aggregate in
MECHANICAL PROPERTIES AND MICROSTRUCTURES OF ALKALI
The compressive strength of the alkaline cementitious material with value of 425 MPa is obtained when the burned coal gangue is mixed water glass with modulus of 123 (mass ratio of solution to solid is 03) at 90 ℃ for 24 h 展开2012年6月20日 The influences of microwave irradiation on reactivity and cementitious property of coal gangue were studied The microstructure of the microwave irradiated coal gangue and ganguecement was characterized by Xray diffraction (XRD), Fourier transform infrared spectroscopy (IR) and so on The results showed that free water and constitutional water of Reactivity and cementitious properties of coal gangue by 2023年9月19日 burned coal gangue samples The results are shown in Figure 3 a, and the lossonignition of unburned coal gangue is relatively large, ranging from 974% to 3518%Road Performance Evaluation of Unburned Coal Gangue in Cold 2016年1月10日 Coal gangue used in this study was obtained from JingYang Coal Washing Plant, which is located in Baotou City of China The mineralogical phase was characterized by XRD as shown in Fig 1It indicates kaolinite (Al 2 O 3 2SiO 2 2H 2 O) and quartz (SiO 2) are the major crystallized minerals presented in the raw coal gangueThe chemical composition and Effect of calcination condition on the microstructure and
Coal Gangue Recognition during Coal Preparation
2023年2月26日 The coal gangue image recognition effects of the AdaBGASVM classifier and the other strong classifiers with different base SVM classifiers were investigated CO 2, and NO x, when burned, which results in coal 2024年2月15日 To address the lightweight and realtime issues of coal sorting detection, an intelligent detection method for coal and gangue, Ourv8, was proposed based on improved YOLOv8 Images of coal and gangue with Detection of Coal and Gangue Based on Improved The pozzolanic activity of coal gangue burned and the hydration, products were examined, the compressive strengths of the pastes of the mixtures were tested, and the mechanism of the reaction was discussed The experimental results show that the coal gangue burned at 750 °C has the optimum pozzolanic activity, ENPozzolanic activity of burned coal gangue and its effects on 2024年9月7日 Coal gangue is a complex industrial solid waste mixed with organic compounds, inorganic compounds and minerals (Fabiańska et al 2013)Its major chemical compositions are SiO 2, Al 2 O 3 and Fe 2 O 3, with traces of CaO, P 2 O 5, MgO and MnO 2The chemical composition of coal gangue from various sources and its comparison with soil reference Opportunities, challenges and modification methods of coal gangue
A SiKBased Amendment Prepared by Coal Gangue and Plant
2023年12月27日 21 Materials The coal gangue was obtained from a coal gangue power plant located in Shuozhou, Northern China (N 3951°, S 11229°) Plant ash was obtained from the leaves of polar plant (Populus L), which was burned completely in the airThe mineral composition of the coal gangue and plant ash determined by XRF spectrometry (Simultix 12 2015年2月18日 The reuse of coal gangue for energy recovery is developing rapidly in China, due to its advantage in achieving both economic and environmental benefits Lowquality coal is often added to elevate the calorific value of the fuel In this paper, the combustion characteristics as well as pollutant emissions (SO2 and NO) of coal gangue, lowquality coal and their blends Cocombustion and emission characteristics of coal gangue and 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 MDPI2018年12月1日 Besides, the coal gangue geopolymer were characterized for performance, phase transformation, molecular structure and microstructure by means of Thermogravimetric Analysis (TGA), Xray diffraction 碱激发煤矸石矿渣胶凝材料的性能 和胶结机理 马宏
Mechanical Performances and Frost Resistance of AlkaliActivated Coal
2022年12月16日 The coal gangue after composite activation treatment is considered a potential lowcarbon and green cementitious material, so the feasibility of employing compositeactivated gangue to partially or entirely replace cement for building materials is systematically studied in this paper The effects of alkali content, slag content, and watertobinder ratio on the mechanical 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 concrete and The original sample of coal gangue was crushed and burned for 2 h at designated temperature, then rapidly cooled by blast fan in the atmosphere to room temperature for use The composite cement was made by mixing 65% mass of the clinker, 30% of burnt coal gangue and 5% gypsum The mixture was ground in 500 mm 500 mmEarly Hydration of Composite Cement with Thermal Activated Coal Gangue2022年1月1日 Coal gangue (CG), a kind of rock in which the organic and inorganic components were codeposited with coal during the coal forming process, is a solid waste discharged in the process of coal mining and washing It was reported that 015–02 tons of CG were discharged for each ton of raw coal mining [2, 3]Mechanism of thermal activation on granular coal gangue and
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 2015年12月15日 DOI: 101016/JCONBUILDMAT201509050 Corpus ID: ; Activity of calcined coal gangue fine aggregate and its effect on the mechanical behavior of cement mortar @article{Dong2015ActivityOC, title={Activity of calcined coal gangue fine aggregate and its effect on the mechanical behavior of cement mortar}, author={Zuochao Dong and Junwu Xia Activity of calcined coal gangue fine aggregate and its effect on China, coal is the main source of energy Gangue is a solid waste generated during the mining and washing of coal [2], which contains high amounts of ash and low calorific value and is difficult to burn [3, 4] Hundreds of millions of tons of coal gangue are discharged every year [5], resulting inExperimental study on mixed pyrolysis of biomass and coal gangue2022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
Determination of heavy metals concentrations in coal and coal gangue
2022年5月5日 During mining, processing and utilization of coal, the environment is exposed to piles of coal, coal gangue and coal ash, which have human health concerns Coal and coal gangue samples were obtained from a coal mining company located in Southern Province, Sinazongwe District, Zambia The main objective of this research was to determine the level of 2019年7月12日 In this paper, slag is used as a calcium source to make alkaliactivated coal gangue–slag (AACGS) based material The reaction mechanism of AACGS materials was discussed in depth by means of XRD, FTIR, 29Si MASNMR (nuclear magnetic resonance) and SEMEDS (energy dispersive spectrometer) The experimental results show that coal gangue Preparation and Reaction Mechanism Characterization of Alkali 2022年6月26日 Coal gangue is a kind of industrial solid waste with serious ecological and environmental implications Producing concrete with coal gangue aggregate is one of the green sustainable development requirements This paper reviews the properties and preparation methods of Chinese gangue aggregate, studies the influence of gangue aggregate on Using Chinese Coal Gangue as an Ecological Aggregate and Its2023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 Research on Recognition of Coal and Gangue Based on Laser
Effect of calcination condition on the microstructure and
2016年1月10日 Coal gangue is a complex industrial solid waste discharged when coal is excavated and washed in the production course of coal mine Its major chemical compositions are SiO 2 and Al 2 O 3, and major mineralogical compositions are kaolinite, illite, and quartzThe amount of coal gangue accumulated in China has already reached 38 billion tons; moreover, 2022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 discharged on the ground Underground Disposal of Coal Gangue Backfill in 2024年1月18日 Coal gangue production of cement Cement production from coal gangue requires “two grinding and one burning”; that is, the coal gangue is combined with a certain proportion of limestone, ground into fine materials, Coal Gangue: Composition, Processing, Use And 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 Gangue
Reactivity activation of waste coal gangue and its impact on the
2020年2月20日 A large amount of coal gangue buildup may be a potential fire hazard associated with the heat released by microorganisms accumulating to the point of spontaneous combustion in the presence of unburned coal, pyrite (FeS 2) and oxygenCoal gangue is likely to cause largescale fire and blast disasters, and produce a significant amount of toxic emissions 2021年8月1日 Coal gangue is a byproduct generated from coal mining and washing Pozzolanic activity of burned coal gangue and its effects on structure of cement mortar J Wuhan Univ TechnolMaterials Sci Ed, 21 (4) (2006), pp 150153, 101007/BF View in Scopus Google ScholarValorization of calcined coal gangue as coarse aggregate in The compressive strength of the alkaline cementitious material with value of 425 MPa is obtained when the burned coal gangue is mixed water glass with modulus of 123 (mass ratio of solution to solid is 03) at 90 ℃ for 24 h 展开MECHANICAL PROPERTIES AND MICROSTRUCTURES OF ALKALI2012年6月20日 The influences of microwave irradiation on reactivity and cementitious property of coal gangue were studied The microstructure of the microwave irradiated coal gangue and ganguecement was characterized by Xray diffraction (XRD), Fourier transform infrared spectroscopy (IR) and so on The results showed that free water and constitutional water of Reactivity and cementitious properties of coal gangue by
Road Performance Evaluation of Unburned Coal Gangue in Cold
2023年9月19日 burned coal gangue samples The results are shown in Figure 3 a, and the lossonignition of unburned coal gangue is relatively large, ranging from 974% to 3518%2016年1月10日 Coal gangue used in this study was obtained from JingYang Coal Washing Plant, which is located in Baotou City of China The mineralogical phase was characterized by XRD as shown in Fig 1It indicates kaolinite (Al 2 O 3 2SiO 2 2H 2 O) and quartz (SiO 2) are the major crystallized minerals presented in the raw coal gangueThe chemical composition and Effect of calcination condition on the microstructure and