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·Abstract Among coal mining related wastes coal gangue CG is the heterogeneous waste generated during the mineral processing or coal washing phase of coal mining A thorough understanding of environmental concerns associated with the current model of
·Therefore while ensuring the coal recovery rate technical research should be strengthened to make the gangue emissions reach the standard At present the widely used artificial coal gangue interface discrimination method is easy to cause misjudgment The most abundant compds generated during coal and coal gangue fired power generation
·2018 The power generation industry fueled with coal gangue coke oven gas natural gas and coal gas is a major anthropogenic SO2 NOx and PM source due to the combustion of fuel containing sulfur and nitrogen Li et al 2016 2017; Yan et al 2017 The coal fired power plants PPs contribute approximately half of the total coal
·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 approximately 15 to 20% of the total coal yield Before coal is used coal and gangue must be effectively separated to reduce the gangue content in the raw coal and
·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
·The persistent reliance on coal has resulted in the accumulation of substantial coal gangue a globally recognized problematic solid waste with environmental risks Given the coal gangue properties and global land degradation severity the resourceful utilization of coal gangue as soil conditioners is believed to be a universally applicable cost effective high
·Abstract Solid wastes from coal industry such as coal gangue CG coal bottom ash CBA and fly ash FA from coal fired power plants pose a significant impact on the environment
·Stronger Carbon Pollution Standards for New Gas and Existing Coal Power Plants EPA s final Clean Air Act standards for existing coal fired and new natural gas fired power plants limit the amount of carbon pollution covered sources can emit based on proven and cost effective control technologies that can be applied directly to power plants
·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
·The Inner Mongolia Suancigou Gangue Power Plant is 1 920MW coal fired power project It is planned in Inner Mongolia China hydropower new energy power generation clean energy and bio based power It owns and manages electric power and energy conservation funds for the Beijing Municipal Government BEIH constructs develops and
·Furthermore their cumulative mitigation potential relative to the baseline scenario could reach 35 billion tons of CO2 in 2015 2030 with low carbon power generation technologies and coal power
·The amount of coal gangue a by product of coal mining and washing is rapidly increasing with the growing trend of energy consumption The accumulated coal gangue without appropriate utilization
·Coal gangue CG is an environmental waste that faces an urgent demand for disposal in China The utilization of CG in construction materials has broad application prospects and gained increasing interest However the poor compatibility of polycarboxylate superplasticizer PCE with CG powder hinders its efficiency in a wide range of applications Here this paper
·the coal industry s coal gangue sorting a lightweight real time detection method called YOLOv8s GSC is proposed based on the characteristics of coal gangue This method incorporates the
·To address the issues of complex algorithm models poor accuracy and low real time performance in the coal industry s coal gangue sorting a lightweight real time detection method called YOLOv8s GSC is proposed based on the characteristics of coal gangue This method incorporates the ghost module into the YOLOv8s backbone network to reduce the
A Simplified Model for SO 2 Generation during Spontaneous Combustion of Coal Gangue Ang Li 1 2 Peng Lei 1 Changkun Chen 1 Tong Xu 1 1 Institute of Disaster Prevention Science and Safety Technology Central South University Changsha 410075 China 2 College of Forestry Inner Mongolia Agricultural University Hohhot 010019 China
·Although the calcination based activation of coal gangue is important for its valorization in the form of cementitious materials the related works mainly focus on high quality coal gangue neglecting its low quality counterpart To bridge this gap we herein conducted the pilot scale suspension calcination of low quality coal gangue; explored the effects of
·Data enhancement methods need to be carefully considered and studied for the widespread application of machine vision and deep learning in the mining field Generative adversarial networks GANs prove successful at generating data However training a high resolution image generation network depends on a large scale dataset and takes a long time
·China has made great progress in comprehensive utilization of coal gangue in the latest 40 years since the 1960—1970 s Circulating fluidized bed CFD power generation using coal gangue is at the advanced level of the world The equipment and technology of
·The carbon emissions resulting from the coal gangue utilization mainly for power generation and building materials reached 137 MtCO 2 e in 2014 Fig 10 of which the proportion of coal gangue power generation has been above 80% for a long time In recent years because the price of gangue brick aerated concrete is higher than that of clay
·Coal is the dominant primary energy source in China accounting for about 64% of the total primary energy consumption in 2015 [1] It is the major source and material for power generation energy intensive industries steel cement
·The presence of silica and alumina along with the traces of clay minerals and residual coal fractions has led to the utilization of CG in various applications such as power generation fertilizer production brick production cement and concrete production as a backfill material and a landfill liner material [18 19 20 21 22] Though the
·In addition many studies have been conducted on the use of coal gangue in power generation filling building materials light weight aggregates and the extraction of chemical products [11] [12
·The most abundant compounds generated during coal and coal gangue fired power generation were 1 Butene Styrene n Hexane and Ethylene while biomass fired power generation were Propene 1
