##tihuan2##Semantic Scholar extracted view of "Co-utilization of spent pot-lining and coal gangue by hydrothermal acid-leaching method to prepare silicon carbide powder" by Jin Xiao et al. Skip to ... Coal waste is the largest industrial solid waste generated from coal preparation plants during the processing and cleaning of coal for electric power ...
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##tihuan2##Early investigations on coal-gangue detection were mainly focused on designing eigenvectors to reveal differentiation between coal and gangue; these were based on image processing (e.g., gray ...
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##tihuan2##Research Progress in Activity Evaluation Method of Calcined Coal Gangue Powder Material WANG Aiguo 1, LIU Peng 1, SUN Daosheng 1, LIU Kaiwei 1, FANG Li'an 2, CAO Jufang 1 1 Anhui Key Laboratory of Advanced Building Materials, Anhui Jianzhu University, Hefei 230022; 2 Ma Hekou Center School, Liu'an 231337
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##tihuan2##Request PDF | On Jun 1, 2023, Haoyu Wang and others published Effect of raw material ratio and sintering temperature on properties of coal gangue-feldspar powder artificial aggregate | Find, read ...
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##tihuan2##Powder & Particle Processing. Process & Solutions. Dry Grinding; Classifying & Separating; ... Using high-alumina coal gangue, iron concentrate powder, and coke powder as raw materials, the Fe-Sialon composite dense material was prepared by carbothermal reduction nitriding method at 1400-1550°C for 4 hours. ... Laboratory …
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##tihuan2##Lack and quality decrease of supplementary cementing materials (SCMs) such as fly ash and granulated blast-furnace slag is increasingly prominent in China. Thus, the use of coal gangue (CG) and coal gasification slag (CGS) as SCMs in concrete attracted more researcher's attention. This paper investigated the mechanical strength, porosity, …
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##tihuan2##1. Introduction. Currently, coal is still one of the main energy sources in many countries. According to statistics, the consumption of coal in the world in 2015 was 550 million tons, accounting for more than 19% of the world's primary energy (Li and Wang, 2019).However, coal gangue (CG) is a solid waste discharged during coal mining and …
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##tihuan2##DOI: 10.1016/J.MINPRO.2014.07.001 Corpus ID: 96245226; Effect of Na2CO3 additive on the activation of coal gangue for alumina extraction @article{Yanxia2014EffectON, title={Effect of Na2CO3 additive on the activation of coal gangue for alumina extraction}, author={Guo Yanxia and Kezhou Yan and Li Cui and Fangqin Cheng and Helen H. Lou}, …
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##tihuan2##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 ...
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##tihuan2##Intelligent coal gangue separation equipment has the advantages of fast speed, high precision, strong modularity, and integration scalability. It also has the …
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##tihuan2##This paper provided a comprehensive review of various modification methods (including mechanical, chemical, microbiological, thermal, hydrothermal and composite …
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##tihuan2##Abstract. Among coal mining-related wastes, coal gangue (CG) is the heterogeneous waste generated during the mineral processing or coal washing phase …
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##tihuan2##3.1 Mineralogical Composition of Coal Gangue. The chemical composition of coal gangue sample by XRF analysis was shown in Table 1.The results show that the main chemical elements in the samples are silicon and aluminum, and the total amount of other elements is less than 1.5%.
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##tihuan2##Process of filling goaf with coal gangue slurry. The process of filling goaf with coal gangue slurry is shown in Fig. 2.Specifically: the coal gangue is crushed by a multi-stage crusher and enters ...
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##tihuan2##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.
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##tihuan2##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 …
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##tihuan2##Coal gangue was collected from Ordos mining area, China. The mineral phase was characterized by XRD (Fig. 1 (a)).Kaolinite (Al 2 O 3 ·2SiO 2 ·2H 2 O) and quartz (SiO 2) were the main crystalline minerals in raw coal gangue.The chemical composition is listed in Table 1.The mineral composition of raw coal gangue is given in …
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##tihuan2##Coal gangue is a solid waste produced in the process of coal mining and processing. It is an effective way to apply it to cement based materials.
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##tihuan2##Coal gangue powder air classifier production line of a paper mill in Shanxi In response to the national call of green environmental protection and recycling, the customer is ready to use stone paper, and wants to seek the processing technology of …
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##tihuan2##Coal gangue powder is widely used in the construction field. +86 [email protected] language >ultrafine powder technology. Home; About Us; Products. ... ③ Grinding stage: the main processing equipment is HGM ultrafine powder mill, auxiliary equipment powder separator, ...
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##tihuan2##where H is mining depth, m.α is dip angle of coal seam, °.L is tilt width of working face, m.. Based on Eq. and Eq(), we calculate the water-inrush coefficient of 81006 working faceTake H = 518 ...
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##tihuan2##Lack and quality decrease of supplementary cementing materials (SCMs) such as fly ash and granulated blast-furnace slag is increasingly prominent in China. Thus, the use of coal gangue (CG) and coal gasification slag (CGS) as SCMs in concrete attracted more researcher's attention.
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##tihuan2##DOI: 10.1016/J.JMRT.2021.08.106 Corpus ID: 239696894; Performance of microwave-activated coal gangue powder as auxiliary cementitious material @article{Guan2021PerformanceOM, title={Performance of microwave-activated coal gangue powder as auxiliary cementitious material}, author={Xiao Guan and Jixi Chen …
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##tihuan2##waste in the process of coal mining and processing, coal gangue is increasing year by year with the continuous and ... it is dark gray. Aˆer screening, it is in granular powder shape, with
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##tihuan2##Coal gangue is a fixed coal mining, washing, and processing product. It is a black-gray rock with lower carbon content and harder than coal associated with coal seams during the coal formation …
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##tihuan2##Demonstration experiments using the system prototype for coal gangue sorting reveal that, compared to existing robotic arm sorting methods in coal washing …
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##tihuan2##China is the world's largest coal mining country, coal reserves account for about 90% of China's mineral resources (Hailiang 2021).According to the National Bureau of Statistics of the People's Republic of China data, China produced 3.90 billion tons of coal in 2020, accounting for about 50.4% of global coal production (Yutao 2022).According to the …
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##tihuan2##1. Introduction. China's annual output of raw coal was about 3.5–4 billion tons, and the annual discharge of coal gangue, an industrial solid waste with a large discharge and low utilization rate, from coal mining and coal preparation was about 500–800 million tons [1], [2], [3], [4].Accumulation and landfills are common ways to treat …
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##tihuan2##The coal gangue in China is the core field of bulk solid waste comprehensive utilization due to its massive stock and emission, high concentration of output, small proportion of high-value-added utilization, and outstanding environmental impact. Hence, the prospect of resource utilization of coal gangue is broad. The existing disposal …
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