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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
Coal gangue processing technology Coal gangue processing technology Coal gangue processing technology
Full article: A review of intelligent coal gangue
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 2024年9月1日 Thoroughly outlines key technologies of underground intelligent coal gangue sorting Innovatively proposes intermittent and continuous coal gangue sorting devices and Research and prospect of underground intelligent coal gangue 2022年12月5日 Aiming at the problem of low accuracy of coal gangue recognition in fully mechanized caving mining, the extraction method of Coal and gangue images features is Image feature extraction and recognition model construction of 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 natureResearch on Recognition of Coal and Gangue Based on
Highly Selective and Green Recovery of Lithium from Coal Gangue
1 天前 With the discovery of superenriched lithium (Li) in coal, coalbased Li deposit is a promising resource to meet Li demand However, traditional Li extraction methods are mainly 2023年8月14日 At present, the comprehensive treatment technology of coal gangue ground, which mainly focuses on power generation, paving, and building materials production from Diffusion law of coal gangue slurry and the application of fluidized 2024年9月7日 The raw coal gangue requires appropriate modification to improve its performance, activate its beneficial ingredients, enhance its water and fertilizer retention, and Opportunities, challenges and modification methods of coal 2022年12月26日 Automated coal gangue identification technology is at the core of the top coal release process, but it also improves the coal release recovery rate of difficult locations and is A review of coal gangue identification research—application to
Technology and engineering test of filling goaf with coal gangue
2023年11月23日 This paper expounds on the technological process of technology of filling goaf with coal gangue slurry, establishes three types of slurry filling systems, such as centralized 2022年12月5日 Using image recognition technology to realize coal gangue recognition is one of the development directions of intelligent fully mechanized caving miningImage feature extraction and recognition model construction of coal 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 has resulted in a squander of resources, waste disposal and environmental pollution issues Over the past few decades, there has been wide attention in developing Comprehensive utilization and environmental risks of coal gangue: A 2024年1月18日 Coal gangue is a fixed coal mining, washing, and processing product It is a blackgray rock with lower carbon content and harder than coal associated with coal seams during the coal formation process And its Coal Gangue: Composition, Processing, Use And
A fast recognition method for coal gangue image processing
2023年5月24日 This paper proposes a modified YOLOv4 model, named GYOLO, for coal gangue recognition with the aim of reducing model parameters, improving calculation speed, and reducing equipment requirements To achieve this, the paper optimizes the feature extraction network structure by using linear operation instead of traditional convolution to obtain 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 surface as waste heaps, it occupies large areas of land and cause environmental pollution This paper summarizes the existing gangue backfilling Underground Disposal of Coal Gangue Backfill in China MDPI2023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 []The accumulation of coal gangue causes serious environmental, social, and economic problems in the coal mining area []Heavy metals and harmful organic substances in Lowcarbon utilization of coal gangue under the carbon 2017年12月10日 Gangue minerals accounts for between 15% and 20% of raw coal in China (Qian et al, 2007)Indeed, as coal production has increased, so has gangue generation; by the end of 2009, the total amount of gangue produced added up to 50 × 10 9 t, encompassing 40% of the total Chinese solid waste (Miao and Qian, 2009)The accumulation of coal gangue not Separating coal and gangue using threedimensional laser scanning
Environmental hazards and comprehensive utilization of solid waste coal
2024年4月1日 Coal gangue power generation is presently the primary method of comprehensively utilizing coal gangue to achieve economic profits [157] Coal gangue is composed of carbon and other flammable substances, which can produce heat when burned This heat can be utilized for the purposes of power generation and heating [158]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 2023年8月22日 The precise identification of damp, sticky coal gangue; efficient jet nozzle separation; and process layout in a narrow, restricted space are essential technologies for gangue source reduction based on underground gangue photoelectric separation, which is critical for the longterm growth of coal mines In this paper, the Xray absorption fine structure (XAFS) Gangue Source Reduction Technology and Process Optimization coal technology and vigorously developing coal washing and processing in the coal mining sector are essential to achieve a raw coal selection rate of more than 75% by 2020 (Du 2017) According to the China Coal Industry Policy, newly built large andA review of intelligent coal gangue separation technology and
Image feature extraction and recognition model construction of coal
At present, the automation technology of coal caving is restricted by the development of coal gangue idenion t icat hnce t ology 7 Researchers have been looking for scientic means to realize 2024年2月1日 All the CGs in the figure are dried in an oven at 60 °C and ground CG1 is Hebei coal gangue, which comes from a coal gangue processing plant in Xingtai, Hebei Province It is brownish black powder after drying and grinding CG2 is Shanxi coal gangue, from Shanxi Geology Group Co, LtdRepresentative coal gangue in China: Physical and chemical 2022年11月30日 In order to truly realize the development of intelligent coal gangue recognition technology, the methods that can be applied to practical work should be explored from the aspects of coal gangue characteristics, signal processing methods and recognition algorithmsResearch on coal gangue recognition based on multilayer time 2023年5月26日 Coal gangue is a solid waste discharged in coal mining and dressing process Largescale decarbonization and activation treatment are key steps toward massive and efficient utilization of coal gangue In this paper, a new process for the preparation of a cement admixture from coal gangue by effectively utilizing its calorific value was developed The mineral Investigation on activation technology of selfheating
Review of Coal Gangue Characteristics and Ecological Restoration
2021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 land resources and causes natural disasters, but also pollutes the surrounding ecological environment, which in turn affects human health and normal production 2023年2月26日 With the development of image processing technology and machine learning, coal gangue identification methods have shifted their focus onto coal gangue image recognition Wang, Li, and Yang [ 12 ] investigated coal gangue response characteristics under different illuminations and used a SVM classifier to realize the identification of coal and gangueCoal Gangue Recognition during Coal Preparation Using an Request PDF On Aug 2, 2022, Nan Zhou published Present situation and prospect of coal gangue treatment technology Find, read and cite all the research you need on ResearchGatePresent situation and prospect of coal gangue treatment technology 2022年12月5日 Using image recognition technology to realize coal gangue recognition is one of the development directions of intelligent fully mechanized caving mining Aiming at the problem of low accuracy of coal gangue recognition in fully mechanized caving mining, the extraction method of Coal and gangue image Image feature extraction and recognition model construction of coal
Technology and engineering test of filling goaf with coal gangue
2023年11月23日 This paper expounds on the technological process of technology of filling goaf with coal gangue slurry, establishes three types of slurry filling systems, such as centralized ground layout, 2016年12月1日 A large proportion of China’s coal resources has a high sulfur content The coalwashing process produces a large amount of coal gangue that needs to be used CFB combustion technology, with its wide fuel scope, low cost of desulfurization, and low NO x emissions, has the advantage of largely using this kind of fuelClean Coal Technologies in China: Current Status and Future 2023年8月14日 As the main solid waste in the process of coal mining and processing, coal gangue is increasing year by year with N et al Present situation and prospect of coal gangue treatment technology Diffusion law of coal gangue slurry and the application of 2024年7月23日 Focusing on the issues of complex models, high computational cost, and low identification speed of existing coal gangue image identification object detection algorithms, an optimized YOLOv5s lightweight detection model for coal gangue is proposed Using ShuffleNetV2 as the backbone network, a convolution pooling module is used at the input end instead of the Lightweight detection model for coal gangue identification based
The realtime detection method for coal gangue based on
2024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 2024年9月7日 However, a substantial amount of coal gangue was generated and discharged during the coal mining, washing and processing processes 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 production of coal gangue was conservatively estimated based Opportunities, challenges and modification methods of coal gangue 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9月1日 Underground intelligent coal gangue sorting technology has made some progress But only TDS sorter has a smallscale application in some mines It has not been popularized in most mines There are still many technical challenges in the underground intelligent coal gangue sorting It lacks sufficient research and needs further indepth studyResearch and prospect of underground intelligent coal gangue
Target Recognition of Coal and Gangue Based on Improved
2023年5月19日 attention mechanism module to improve the recognition accuracy of coal gangue Guo et al [15] proposed a coal gangue recognition method based on a TWRNoptimized CNN, which improves recognition accuracy while reducing recognition time Li et al [16] proposed to solve the problem of coal gangue recognition in visible nearinfrared spectroscopy2017年10月1日 Results showed that after calcining with mineral powders, the crushing rate of coal gangue decreased from 168 % to 161–132 %, and water absorption decreased from 529 % to 274–390 % Environment influences and extinguish technology of 2024年6月30日 Artificial gangue selection, as the earliest method of coal gangue separation, exhibits low efficiency and accuracy while also posing health risks to workers [10]Wet gangue selection technology utilizes the gravity difference between coal and gangue in a liquid medium to achieve efficient separation, addressing the issue of fly ash that endangers worker health [11]Intelligent photoelectric identification of coal and gangue − A 2022年12月5日 Using image recognition technology to realize coal gangue recognition is one of the development directions of intelligent fully mechanized caving miningImage feature extraction and recognition model construction of coal
Comprehensive utilization and environmental risks of coal gangue: A
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 has resulted in a squander of resources, waste disposal and environmental pollution issues Over the past few decades, there has been wide attention in developing 2024年1月18日 Coal gangue is a fixed coal mining, washing, and processing product It is a blackgray rock with lower carbon content and harder than coal associated with coal seams during the coal formation process And its Coal Gangue: Composition, Processing, Use And 2023年5月24日 This paper proposes a modified YOLOv4 model, named GYOLO, for coal gangue recognition with the aim of reducing model parameters, improving calculation speed, and reducing equipment requirements To achieve this, the paper optimizes the feature extraction network structure by using linear operation instead of traditional convolution to obtain A fast recognition method for coal gangue image processing2022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 surface as waste heaps, it occupies large areas of land and cause environmental pollution This paper summarizes the existing gangue backfilling Underground Disposal of Coal Gangue Backfill in China MDPI
Lowcarbon utilization of coal gangue under the carbon
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 []The accumulation of coal gangue causes serious environmental, social, and economic problems in the coal mining area []Heavy metals and harmful organic substances in 2017年12月10日 Gangue minerals accounts for between 15% and 20% of raw coal in China (Qian et al, 2007)Indeed, as coal production has increased, so has gangue generation; by the end of 2009, the total amount of gangue produced added up to 50 × 10 9 t, encompassing 40% of the total Chinese solid waste (Miao and Qian, 2009)The accumulation of coal gangue not Separating coal and gangue using threedimensional laser scanning2024年4月1日 Coal gangue power generation is presently the primary method of comprehensively utilizing coal gangue to achieve economic profits [157] Coal gangue is composed of carbon and other flammable substances, which can produce heat when burned This heat can be utilized for the purposes of power generation and heating [158]Environmental hazards and comprehensive utilization of solid waste coal 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
Gangue Source Reduction Technology and Process Optimization
2023年8月22日 The precise identification of damp, sticky coal gangue; efficient jet nozzle separation; and process layout in a narrow, restricted space are essential technologies for gangue source reduction based on underground gangue photoelectric separation, which is critical for the longterm growth of coal mines In this paper, the Xray absorption fine structure (XAFS)