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Therefo re sorting coal gangue fro m coal is an extremely import ant link and has two tradit ional sorting methods human sor ting and wet cleani ng methods A sieving machine sor ts
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The main by product of coal mining is coal gangue which is an important solid waste and one of the main sources of pollution in mining areas [ 2 ] Under different mining methods and geological conditions gangue accounts for about 10 15% of the total coal production [ 3 ] Coal gangue is usually piled up forming a coal gangue dump [ 4 ]
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Zhang et al 2024 2024 2024 explored the mechanism of coal and gangue particles forming arch in the drawing process and proposed targeted measures aimed at reducing the probability of forming arch and improving the top coal recovery in LTCC with large mining height in an extra thick seam
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Using Chinese Coal Gangue as an Ecological Aggregate and Its Modification A Review Materials Basel 2024 Jun 26 15 13 4495 doi /ma15134495 Authors Ying Hao 1 Xiaoning Guo 1 Xianhua Yao 1 2 Ruicong Han 1 Lielie Li 1 Min Zhang 1 Affiliations
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Keywords Phytoremediation Coal gangue pollution Heavy metals Microbial diversity Soil metabolism Suggested Citation Suggested Citation WANG Yi wang Long Term in Situ Restoration of Different Arbor in Coal Gangue Area Affected Metabolite and Bacterial Symbiosis Patterns in Vertical Soil Profiles
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1 stability of slope measure horizontal rank wholely are stacked technology with compacting layer by layer coal gangue hill pushes away the side slope design of loosing after smooth
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Focusing on various problems in coal gangue detecting and recognising algorithms such as limited receptive field slow convergence rate and low accuracy of small particle recognition this paper proposes a coal gangue detection and recognition algorithm based on deformable convolution YOLOv3 DCN YOLOv3
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The current statistics show coal gangue discharge is 100 million tons per year and the accumulated discharge has been as high as billion tons It comprises the largest portion of solid waste in our country Its storage not only requires valuable land resources but also pollutes the air water and soil of the storage sites resulting in waste of resources
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High sulfur coal gangue HS CG is extremely unstable in the environment releasing acid mine drainage with high concentrations of harmful heavy metals HMs The effects of HS CG particle size leaching solution pH Fe 3 and acidophilic microorganisms on the release of HMs from the HS CG and their kinetic behavior were studied using static
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The coal gangue crusher with low energy consumption and high using level will become the main machine in green and environmental friendly development Material Introduction Coal Gangue is a kind of solid thing that is produced in the process of coal mining and washing
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To study the influence of the gangue content of coal gangue particles on the vibration signal of the tail beam under sliding condition this paper combines three dimensional 3D laser scanning technology with the finite element method establishes a finite element model of the real shape of coal gangue particles and the hydraulic support in top coal caving in LS DYNA analyzes the influence of
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Hammer Crusher Concrete Brick Crushing Equipment Limestone Hammer Crusher Coal Gangue Machine Find Complete Details about Hammer Crusher Concrete Brick Crushing Equipment Limestone Hammer Crusher Coal Gangue Machine Stone Crusher Hardness Hammer Crusher Environmental Protection Type Crusher Small Hammer Crusher/sledge Hammer Crusher Pellet Mill Metal Crusher Hammer Crusher Limestone Hammer
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Impact crusher crushes coal gangue by use of the impact or striking energy When coal gangue material enters the plate hammer zone of impact crusher it is hit and impacted by high speed rotating plate hammer Then it is constantly thrown to the counterattack device mounted on the top of the rotor
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Coal gangue is the main solid waste in coal mining areas and its annual emissions account for about 10% of coal production The composition information of coal gangue is the basis of reasonable utilization of coal gangue and according to the composition information of coal gangue one can choose the appropriate application scene The reasonable utilization of coal gangue can not only
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The use of image processing to recognize coal and gangue is safer and more convenient than traditional coal washing methods since it does not require complex equipment or water for heavy media based techniques and is also preferable to other advanced recognition methods such as X rays [ 3] or three dimensional laser scanning [ 4 ]
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Coal gangue processing technology RemarksThe production line is mainly based on the actual material sie and the customers requirements for product granularity According to different production site conditions Dewo engineers can provide customers with process planning and technical support and we can also design nonstandard according to
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1 Coal gangue and fly ash required for preparation the coal gangue in the experiment is the spontaneous combustion coal gangue of Gaode Mine in the Fuxin City Liaoning Province and its chemical composition is shown in Table 1 The fly ash of grade I in Fuxin Power Plant is used in this experiment The chemical composition is shown in Table 2
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BACKGROUND Coal gangue causes a series of environmental problems due to its low utilization rate and high amount of hoarding However the preparation of porous materials with coal gangue is an effective method of resource utilization
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In the process of coal mining the coal quality is greatly reduced due to the mixing of gangue and the stacking and burning of coal and gangue can cause serious environmental pollution The fast identification of coal and gangue is an important technology for gangue sorting Considering tiny YOLO v3 has the advantages of fast running speed simple network and good effectiveness an improved
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Coal gangue separation is of key important for green mining Robotic separation of coal and gangue based on the machine vision system which is called a coal gangue picking robot with a gangue grab driven by four cables is developed in this study International Journal of Technology Enhancements and Emerging Engineering Research 1 31 34
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Coal gangue will be used for electricity production after primary crushing by crusher mainly co fire washed medium coal and washed gangue to generate electricity By simple technology to wash and elect high quality coal from coal gangue at the same time screen out low quality coal and pick out pyrite Or recycle pyrite washed mixing
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Experiments show that the sorting rate of the multi robot gangue sorting strategy based on immune dynamic workspace is about 20% higher than the traditional method and the robot system has good stability and reliability KEYWORDS Coal gangue sorting Multi robot collaboration artificial immunity dynamic workspace Disclosure statement
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The production process of coal gangue pulverizing is mainly composed of feeding coarse crushing medium and fine crushing grinding screening transportation and other links Commonly used equipment includes vibrating feeder vibrating screen belt conveyor jaw crusher impact crusher ultrafine powder mill and other equipment
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There are still huge amounts of coal gangue being dumped in coal reject hills and posing severe environmental and social problems [6 8] For the present large scale utilization technologies of coal gangue are mainly characterized by low added value such as making cement and bricks power generation and paving roads [9 10]
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Environmental pollution caused by coal gangue has been a significant challenge for sustainable development thus many coal gangue reduction approaches have been proposed in recent years In particular coal gangue facility CGF construction has been considered as an efficient method for the control and recycling of coal gangue Meanwhile the identification and selection of suitable CGF
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More comprehensive high value added utilization technology for the utilization of coal gangue have not yet been widely used for a variety of reasons Large accumulations of coal gangue currently occupy land and are prone to spontaneous combustion For the coal gangue used in this article the best synthesis conditions for the preparation of
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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 and life
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Flowchart of proposed coal gangue recognition method a Sound signals were acquired using microphone subsequently they were segmented and augmented via overlapping sampling b Auditory peripheral model was used to process sound signals to generate auditory signals and convert them into multichannel auditory spectrum
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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
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Coal gangue processing technology Remarks The production line is mainly based on the actual material size and the customer s requirements for product granularity According to different production site conditions Dewo engineers can provide customers with process planning and technical support and we can also design non standard according to
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