Coal preparation plant gangue

Full article: A review of intelligent coal gangue

2023年11月6日  A coal preparation plant in Shanxi used a twostage spiral separator to separate the flotation tailings of No 1 raw coal (difficult to float coal), achieving effective separation of the flotation tailings of No 1 raw coal2019年12月1日  The technical innovation of coal preparation plants should be encouraged to improve the utilization rate of coal resources and decrease the amount of coal gangue Comprehensive utilization and environmental risks of coal gangue: 2024年9月7日  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 Opportunities, challenges and modification methods of coal 2024年8月15日  This study aimed to identify methods to increase coal gangue usage in technosols while ensuring soil fertility, supporting vegetation growth, and reducing pollution Preparation of technosol based on coal gangue and its impact on

Lowcarbon utilization of coal gangue under the

2023年5月25日  To grasp the concept of the carbon effect of coal gangue more comprehensively and systematically and provide more economic and reasonable technical strategies for the treatment and utilization of coal gangue against the Using coal gangue as a fertilizer has been proven helpful in potentially reducing its environmental impact and improving its value In this study, the formation mechanism and influencing factors Sustainable and clean utilization of coal gangue: activation and 2022年6月26日  This paper reviews the properties and preparation methods of Chinese gangue aggregate, studies the influence of gangue aggregate on concrete properties and the prediction model of gangue concrete, and Using Chinese Coal Gangue as an Ecological Aggregate 2023年2月26日  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 Coal Gangue Recognition during Coal Preparation

Opportunities, challenges and modification methods of coal gangue

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 2022年9月1日  Request PDF A synchronous detectionsegmentation method for oversized gangue on a coal preparation plant based on multitask learning Online identification and sorting for coal and gangue has A synchronous detectionsegmentation method for oversized gangue 2024年2月15日  Ziqi Lv et al presented a synchronous detection–segmentation method for oversized gangue in a coal preparation plant based on multitask learning Wenhao Lai et al [ 9 ] proposed an improved Mask RCNN algorithm Detection of Coal and Gangue Based on Improved Coal gangue, a byproduct produced during the coal processing, has a serious impact on the environment Using coal gangue as a fertilizer has been proven helpful in potentially reducing its environmental impact and improving its value In this study, the formation mechanism and influencing factors of coalganguebased silicon fertilizer was studied using XRD and FTIR Sustainable and clean utilization of coal gangue: activation and

Research Progress on Comprehensive Utilization of Coal Gangue

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 2023年12月27日  The aim of this study was to prepare a SiKbased amendment by coal gangue and plant ash and clarify its feasibility for improving the growth of maize plants in saline soilsThe SiKbased amendment was prepared by mixing the coal gangue and plant ash and calcining at 500–900 °C for 05–25 h A pot experiment was carried out to assess the effects of SiK A SiKBased Amendment Prepared by Coal Gangue and Plant 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 Lowcarbon utilization of coal gangue under the carbon 2019年12月1日  Germany and the Netherlands have built coalfired power plants and coal preparation plants at adjacent sites for the purpose of generating electricity from coal, slime and coal gangue (Guo et al, 2014b) Coal gangue has a wide range of applications in building material industry, energy industry, Comprehensive utilization and environmental risks of coal gangue: A

Finegrained object detection method using attention mechanism

2021年12月1日  Considering that finegrained characteristic is widely existed in industrial object images, we proposed a singleshot finegrained object detector, and applied it to coal–gangue images in coal preparation plant Firstly, we employed grouped convolution to build a new convolutional neural network as the backbone of the detector2024年9月1日  And current surface coal preparation plants no longer meet environmental protection standards Coal gangue identification using laser speckle technology has advantages like ease of implementation, quick recognition, and costeffectiveness Still, it is sensitive to light and can be obstructed by dust, affecting its effectivenessResearch and prospect of underground intelligent coal gangue DOI: 101016/jjclepro2024 Corpus ID: ; Preparation of technosol based on coal gangue and its impact on plant growth in coal mining area @article{Liu2024PreparationOT, title={Preparation of technosol based on coal gangue and its impact on plant growth in coal mining area}, author={Xianghong Liu and Jin Zhang and Qiang Li and Weidong Liang}, Preparation of technosol based on coal gangue and its impact on plant 2023年12月1日  The coal and gangue samples captured in the laboratory were obtained from the Daliuta Coal Preparation Plant (CPP) in Shenmu, Shaanxi Province, China The Guobei CPP is a central coal preparation plant The coal and gangue samples captured under field conditions are obtained from multiple mining areas belonging to the Huainan Investigating comparisons on the coal and gangue in various

Native polycyclic aromatic hydrocarbons (PAHs) in coal and its

2024年11月15日  The coal preparation methods in this plant were as follows (Shi, 2018): lump coal (>50 mm) was channeled into a moving sieve jig separator to predischarge gangue; fine coal (50–1 mm) was sorted into cleaned coal, middlings, and gangue using a twoproduct heavy medium cyclone and primary and second washing with pressurized feeding operated in two 2024年2月1日  To promote its consumption, researchers have studied the use of CG in concrete, the specific preparation method of CG concrete is shown in Fig 3 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 Representative coal gangue in China: Physical and chemical 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 Particle size distribution of coal and gangue after impactcrush 2023年1月1日  The flowsheet for a coal preparation plant can typically be represented by a series of sequential unit operations for sizing, cleaning, and dewatering (Fig 181)This sequence of steps is repeated for each size fraction, since the processes used in modern plants have a limited range of applicability in terms of particle size (Osborne, 1988)Optimization, simulation, and control of coal preparation plants

A synchronous detectionsegmentation method for oversized gangue

2022年9月1日  The coal gangue intelligent sorting technology is mainly applicated in the raw coal preparation workshop of coal preparation plant (CPP), which aims to replace the existing manual gangue sorting process for predischarge gangue2006年4月1日  PDF A coal preparation plant typically operates with multiple cleaning circuits to clean individual size fractions of runofmine coal Coal Find, read and cite all the research you need on (PDF) Coal preparation plant optimization: A critical review of 2020年7月24日  [Show full abstract] collected from runofmine lignite (feed), coal preparation plant products, namely coarse (+18 mm) clean coal, fine (1018mm, 0510mm) clean coals, middlings, coarse and fine Assessment of soil and maize contamination by TE near a coal gangue 2020年1月15日  However, due to the large granule size of coal gangue and the extremely low capillary porosity, using coal gangue alone as a planting substrate can lead to poor matrix structure and water retention (Jabłońska et al, 2017; Zhang and Wang, 2007), which is not conducive to plant growthOptimizing the formulation of coal gangue planting substrate

Using Chinese Coal Gangue as an Ecological

2022年6月26日  The coal consumption yearonyear growth rate of the world since 2010 (data from International Energy Agency Statistics, 2020) 2020年2月5日  Global rise in greenhouse gas emissions (GHG) is triggered mainly due to the consumption of fossil fuels for power generation and domestic usage Among the fossil fuels, coal is a primary contributor to global GHG with substantial emissions generated during its mining and combustion process Coal gangue, a residue produced during the coal mining process, has Characterization studies on coal gangue for sustainable geotechnics2024年6月4日  For example, in Yizhang County Huiliang cement plant, coal gangue is used to replace clay, and the annual utilization of coal gangue is about 30,000 t, saving 05 t of raw coal (Tianqi 2019) Coal gangue preparation of composite thermal insulation block technologyCharacteristics of Coal Gangue and Present Situation and 2021年9月8日  Using the coal gangue detection and recognition device built in the laboratory, the trained SSD, YOLOv3,YOLOv4, YOLOv5 and DCNYOLOv3 algorithm network models were adopted to detect coal gangue Figure 10 shows the effect of the detection of coal and gangue of three different sizes: 4–6, 6–8 and 10–12 cmCoal gangue detection and recognition algorithm based on

A synchronous detectionsegmentation method for oversized gangue

2022年9月1日  @article{Lv2022ASD, title={A synchronous detectionsegmentation method for oversized gangue on a coal preparation plant based on multitask learning}, author={Ziqi Lv and Weidong Wang and Kanghui Zhang and Wujin Li and Junda Feng and Zhiqiang Xu}, journal={Minerals Engineering}, year= {2022 from the preparation plant stock dump and loading onto silos, at grinding of coarse coal over +200 (100) mm, during supplying coal to the preparation plant by a belt conveyor Coal size degradation depends on strata sensing and grindability Figure 1 shows a diagram of the main stages of a coal sample preparation for the study and providing the Design of coal preparation plants: problems and solutions2024年8月15日  This study aimed to identify methods to increase coal gangue usage in technosols while ensuring soil fertility, supporting vegetation growth, and reducing pollution risks in an economically feasible manner We systematically assessed coal gangue technosol preparation, combining appropriate amounts of key functional materials with local soilPreparation of technosol based on coal gangue and its impact on plant 2024年10月30日  At an underground mine in Shanxi, China, with a capacity of 240 Mt/a, the high gangue content in coal overburdened the transport system and coal preparation plantRethinking Coal Exit, Solution for Waterless Coal Beneficiation

Computer vision detection of foreign objects in coal processing

2021年6月1日  Currently, the removal of foreign objects in coal preparation plant mainly depends on manual picking, which has disadvantages of high labor intensity and low efficiency In addition, coal and gangue scattered around foreign objects, especially with the same or similar shape, were prone to be missed or false detection2022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 Its2021年9月20日  Silicon (Si) fertilizer is of great significance to modern agricultural production; the citratesoluble silicon fertilizer based on coal gangue is one way to protect the environment and meet the Sustainable and Clean Utilization of Coal Gangue: 2015年5月27日  Energy recovery is a promising method for coal gangue utilization, during which the prevention of secondary pollution, especially toxic metal emission, is a significant issue in the development of coal gangue utilization In the present study, investigation into trace element partitioning behavior from a coal ganguefired power plant in Shanxi province, China, has been Trace element partitioning behavior of coal ganguefired CFB plant

Progress in the utilization of coal gangue for soilification and the

The soilification of coal gangue and its application as a soil amendment to improve soil quality and enhance agricultural productivity have become research focuses Progress in the utilization of coal gangue for soilification and the preparation of soil amendment Journal of Materials, Processing and Design (2024) Vol 8: 6974 DOI: http Removing coal gangue by separation ♦Address correspondence to Xiahui Gui, Chinese National Engineering Research Center of Coal Preparation and Purification, to build more than 180 coal preparation plants, and to achieve approximately 850 million tons of COAL PREPARATION TECHNOLOGY: STATUS AND DEVELOPMENT 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 2023年11月6日  Recognition and separation of Coal/Gangue are important phases in the coal industries for many aspects This paper addressed the topic of Coal/Gangue recognition and built a new model called (CGR A review of intelligent coal gangue separation ResearchGate

Assessment of soil and maize contamination by TE near a coal gangue

near a coal gangue–fired thermal power plant Dan Li Daishe Wu Feigao Xu Jinhu Lai Li Shao Received: 16 January 2020/Accepted: 19 July 2020 # Springer Nature Switzerland AG 2020 Abstract Coal preparation byproducts, such as coal gangue, are inferior fuels enriched with trace elements (TEs) Owing to the issues surrounding the disposal ofAn introduction to the nature of coal J Groppo, in Coal Combustion Products (CCP's), 2017 13 Coal beneficiation 131 Coal beneficiation processes Coal beneficiation, or coal preparation as it is also termed, refers to the processes through which inorganic impurities are separated from raw mined coal, thereby providing improved combustion characteristics to the fuel producedCoal Beneficiation an overview ScienceDirect Topics2016年10月22日  Addressing coal research and design is an important stage in construction and operation of coal preparation plants At present time the calculation of flow sheets is based on the initial data of the study of operational samples (industrial) samples, taken directly from the mine (open cast) without taking into account breakage on handling of coal from the mine (open cast) Design of coal preparation plants: problems and solutions2024年10月3日  4 Research on the Preparation of Soil Amendments from Coal Gangue 41 Overview of Preparation Methods The conventional method for preparing soil amendments from coal gangue typically involves the following steps and techniques: 1) Crushing and Screening Initially, collected coal gangue is crushed to achieve an appropriateProgress in the utilization of coal gangue for soilification and the

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