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
The difference between coal fine stone and coal gangue
Research on the Identification Mechanism of Coal
2022年12月20日 For coal and gangue, intelligent sorting processes for separation, the use of coal and gangue mineral components with different fundamental differences, and the study of different properties of minerals and Differentiation between coal and gangue is desirable for fuel quality control and yield analysis This research aims to develop a digital imaging and image analysis technique for this purpose Differentiation between Coal and Stone through Image Analysis of 2024年1月18日 Coal gangue refers to the waste or byproduct produced when coal is extracted from coal mines These wastes usually include coal gangue (without valuable crushed coal and gangue), rocks, soil, and other minerals Coal Gangue: Composition, Processing, Use And 2020年4月30日 This paper investigated the influence of physical and chemical properties of coal gangue under different geological conditions and aggregate replacement rate (0, 30%, 60%, Effect of Physical and Chemical Properties of Coal Gangue Under
Review Highcapacity utilization of coal gangue as supplementary
2024年7月12日 Coal gangue (CG), which accounts for about 10–20 % of coal output, is a kind of solid waste generated during the coal mining and washing processes According to Fig 2, the 2024年2月23日 Compared with coal gangue coarse aggregate concrete, there is less research on coal gangue sand concrete However, coal gangue sand is an important and promising Utilization of coal gangue sand in structural concrete as fine 2022年7月4日 Coal gangue is used instead of fine and coarse aggregates to improve utilization rate A coal gangue concrete model is proposed for predicting splitting tensile strength Study on the mechanical behavior and micromechanism of 2024年9月7日 Coal gangue, a blackgray rock with lower carbon content and heat value compared to coal, accounts for about 15%20% of coal production (Li et al 2006) The Opportunities, challenges and modification methods of coal
Coal and Gangue Classification Based on Laser
2023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 2022年6月26日 Coal gangue is a kind of hard rock produced during coal mining and, it commonly comprises limestone, claystone, and to a lesser extent, shale and volcanic rocks It has low carbon content and generally accounts for about Using Chinese Coal Gangue as an Ecological Aggregate Moreover, coal gangue was a byproduct of the coal mining and washing processes, accounting for approximately 10 %–25 % of the total raw coal production [[9], [10], [11]]Its carbon content was relatively low and its hardness was higher than that of coal [12]According to the data of China Resources Comprehensive Utilization, the production amount of coal gangue in 2021 Synergistic action and effect mechanism of coal gangue powder 2024年1月18日 Coal: One of the main components of coal gangue is coal itself, including different types of coal, such as stone coal, lignite, anthracite, etc Rock: Coal gangue usually contains a large amount of rockThese rocks may be Coal Gangue: Composition, Processing, Use And
Particle size distribution of coal and gangue after impactcrush
2017年7月9日 Based on the separation and backfilling system of coal and gangue, the mineral material impact experiments were conducted utilizing the hardness difference between coal and gangue according to the uniaxial compression experiments The broken coal and gangue particles were collected and screened by different size meshes The particle size distributions of coal 2022年4月6日 AbstractAmong coal miningrelated wastes, coal gangue C Fan, and J Cao 2015 “Activity of calcined coal gangue fine aggregate and its effect on the mechanical behavior of Y Dong, and J Li 2017 “Effect of pH on the release of heavy metals from stone coal waste rocks” Int J Miner Process 165: 1–7 https The Sustainable Utilization of Coal Gangue in Geotechnical 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 2023年2月26日 The recognition of coal and gangue is the premise and foundation of coal gangue intelligent sorting Adaptive boosting (AdaBoost) algorithmbased coal gangue identification has not been studied in depth This paper proposed a coal gangue image recognition algorithm and a strong classifier based on the AdaBoost algorithm with a genetic Coal Gangue Recognition during Coal Preparation Using an
The impact of microwave curing on the strength and
2024年9月13日 The cement used is CEM I 425 N, with its principal characteristics outlined in Table 1The fine aggregate used in this study comprises natural river sand with a fineness modulus of 23, and its gradation curve is illustrated in Fig 1The coarse aggregate is coal gangue obtained from a coal mine in Wuhai City, Inner Mongolia, China, crushed and sieved to 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 2024年3月28日 In the combustion process of gasification fine slag and bituminous coal (A2–C2), similar to lignite presents two obvious stages of mass loss, different from lignite is the lack of moisture loss stage, and there is no obvious dividing line between the two weight loss peaks in the combustion process of bituminous coal and gasification fine slag, indicating that there is a Study of Combustion Characteristics and Matching Between the 2023年11月6日 By establishing a coalgangue separation system based on the difference between coal and gangue in their surface texture and grayscale feature, this paper proposes a method of combining image A review of intelligent coal gangue separation ResearchGate
Air and oxyfuel combustion characteristics of coal gangue and
2023年12月1日 Coal gangue, characterized by high ash content and low heating value, is an undesired but inevitable byproduct of coal mining [[1], [2], [3]]Based on the fuel flexibility advantage of circulating fluidized bed combustion (CFBC) technology and increasing demand for electricity, coal gangue is widely used in CFBC power plants for power generation in some 2019年12月1日 Moreover, the distribution of particle crushing strength for coal gangue is between 302 and 1111 MPa, and the crushing probability and the applied load well satisfy the Weibull distribution Comprehensive utilization and environmental risks of coal gangue2015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 2021年1月7日 Impact contact behaviors with different velocities, direction and contact states occurred in the process of coal drawing between coal gangue particles and the hydraulic support greatly increase Multipoint Acceleration Information Acquisition of the Impact
A Diverse Environment Coal Gangue Image Segmentation Model
2023年11月5日 The problem of uneven illumination in the coal gangue image and the existence of fine coal gangue reduces the accuracy of the coal gangue location, which also makes it difficult to the annotation of the coal gangue images In this paper, we propose an improved UNet2023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 structural 2023年12月1日 Coal gangue, a coal mining and processing byproduct, has long been considered a valueless waste material [1]However, with the increasing global coal production, the amount of coal gangue generated has also grown exponentially, leading to significant dust emissions and high disposal costs [2, 3]For example, China produces 743 million tons of coal Shrinkage model for concrete incorporating coal gangue coarse and fine 2024年7月12日 Coal gangue (CG), which accounts for about 10–20 % of coal output, is a kind of solid waste generated during the coal mining and washing processes According to Fig 2 , the annual output of CG in China fluctuates between 600–800 million tons, with a utilization rate hovering around 70 %Review Highcapacity utilization of coal gangue as supplementary
Simulation Research on Impact Contact Behavior between Coal Gangue
2022年5月30日 In the process of top coal caving, coal gangue particles may impact on various parts of the hydraulic support However, at present, the contact mechanism between coal gangue and hydraulic support 2021年2月14日 In addition to traditional coal preparation methods, coal and gangue can be effectively separated by utilizing different absorption and attenuation degrees of the coal and gangue to highenergy Coal and Gangue Separating Robot System Based on 2020年4月14日 22 Experiment The chemical composition measured by Bruker S8 TIGER XRF analysis; the mineralogical composition measured via Bruker D8 ADVANCE XRD analysis; thermal analysis conducted with Mettler Toledo analyzer in a temperature range of 30–1000 °C at a heating rate of 10 °C/min and N 2 or O 2 atmosphere Mortar strength test: prismatic mortar Identification and Activation of Coal Gangue and Performance 2024年4月6日 The compressive–bending strength ratio of the concrete with coal gangue as the fine aggregate was calculated according to its compressive strength and flexural strength The relationship between the different fine coal gangue aggregate substitution ratios and the compressive–bending strength ratio is shown in Fig 6Experimental research on bearing characteristics of coal gangue
The influence of fly ash content on ITZ microstructure of coal gangue
2021年9月6日 Coal gangue is the main solid waste produced in coal mining and preparation, and its resource utilization has become a hot issue in countries that use coal as the main source of energy [1], [2]An effective resource utilization method is using coal gangue instead of crushed stone to prepare concrete, which can not only solve the environmental problems caused by 2023年1月19日 The identification of coal gangue is of great significance for its intelligent separation To overcome the interference of visible light, we propose coal gangue recognition based on multispectral imaging and Extreme Gradient Boosting (XGBoost) The data acquisition system is built in the laboratory, and 280 groups of spectral data of coal and coal gangue are Coal gangue recognition based on spectral imaging combined 2022年7月4日 As a building material, coal gangue is currently utilised as follows: (1) coal gangue powder used as a cementitious additive [9], [10], [11]; (2) coal gangue used as fine aggregate, replacing river sand [12], [13]; and (3) coal gangue used as coarse aggregate, replacing natural gravel [14], [15], [16]Moreover, concrete with coal gangue has demonstrated Study on the mechanical behavior and micromechanism of 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 A review of coal gangue identification research—application to
Study on the thermal reaction characteristics and kinetics of coal
2024年2月1日 Scholars have carried out extensive research on the combustion process of coal and coal gangue In the study of the micromechanism of spontaneous combustion，Wang et al [12] explained the chain reaction mechanism of 12 key free radicals during coal spontaneous combustionChen et al [13] constructed a cycle model of free radicals during coal 2024年2月2日 Research shows that thermal treatment of coal gangue particles with a size of 0–1 mm has significant technical and economic value Coal gangue samples from four regions were crushed and screened to compare the calorific value of 0–1 mm and 1–16 mm The characteristics of the coal gangue before and after calcination treatment were analyzed 0–1 Study on the calorific value and cementitious properties of coal gangue 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 DOI: 101080/2022 Corpus ID: ; Research on the fine identification of coal types and gangue based on Xray diffraction principle @article{Zhao2022ResearchOT, title={Research on the fine identification of coal types and gangue based on Xray diffraction principle}, author={Yanqiu Zhao and Shuang Wang and Yong Cun Guo and Gang Cheng and Research on the fine identification of coal types and gangue
A fasttraining GAN for coal–gangue image augmentation based
2023年12月22日 The style optimization strategy finetunes the image style of each layer by modifying its output separately to enrich the image with a maximum of 692% (yolov5) Furthermore, the reduction in the APvalue difference between coal and gangue indicates that STPGAN helps balance the detection accuracy for various classes Fig 152019年5月8日 Recognizing and distinguishing coal and gangue are essential in engineering, such as in coalfired power plants This paper employed a convolutional neural network (CNN) to recognize coal and gangue images and Image Recognition of Coal and Coal Gangue Using a 2022年10月30日 Pyrite is common in coal gangue formed in a reduced environment and has a significant influence on the recycling utilization of coal gangue Four types of pyrite with different structures and morphologies, namely octahedral pyrite framboid, pentagonal dodecahedral pyrite framboid, irregular grain pyrite, and euhedral octahedral crystalline pyrite, were selected from Thermal decomposition and oxidation of pyrite with different 2021年1月10日 The main reason for low separation efficiency in low rank coal (LRC) flotation was the small wettability difference between organic matter and gangue The experiments were conducted on organic matter, gangue, and raw coal and combined with surfactant adsorption/desorption capacity, Improvement of Low‐Rank Coal Flotation Based on the
Separation of calcined coal gangue and its influence on the
2022年7月1日 Coal gangue was a kind of solid waste with various minerals The mineral composition of coal gangue in various regions was different Even if it was produced in the same region, its composition fluctuates greatly, which brings great obstacles to the comprehensive utilization of coal gangue2021年1月10日 Request PDF Improvement of Low‐Rank Coal Flotation Based on the Enhancement of Wettability Difference between Organic Matter and Gangue The main reason for low separation efficiency in low Improvement of Low‐Rank Coal Flotation Based on the 2013年10月1日 This article addresses the fundamental difference between coal rank and coal type While theoretically settled long ago as being different aspects of coal systems science, the two concepts are On the fundamental difference between coal rank and coal type2020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
Lowcarbon utilization of coal gangue under the carbon
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 2023年10月11日 Coal gangue and fly ash are mostly composed of SiO2 and Al2O3, and the content of other components was slightly different Large pieces of coal gangue were broken with the crusher; the four particle sizes required for the test were screened by a standard vibrating sieve and then mixed with different concentrations of coal fly ashStudy on mechanical properties of coal gangue and fly ash