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WEBDOI: / Corpus ID: ; A review of intelligent coal gangue separation technology and equipment development article{Jiang2023ARO, title={A review of intelligent coal gangue separation technology and equipment development}, author={Zhigang Jiang and Kunzhong He and Dongming Zhang}, .
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WEBAug 2, 2023 · The sieved coal gangue was activated by planetary ball milling for 1 h. The activated coal gangue was mixed with clay, fluxing agent, and poreforming agent in a mass ratio of 10:2::1. MnO 2 was chosen as the fluxing agent, and Na 2 CO 3 was chosen as the poreforming agent for the adsorption experiment. The mixture was then .
WEBAbstract: This paper developed a kind of concrete with coal gangue as coarse aggregate in order to solve the environmental pollution problem and meet the requirement of filling material in gobside entry retaining. Firstly physical properties and chemical properties of coal gangue were analyzed, and then several schemes of mix proportion were ...
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WEBFeb 23, 2024 · 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 .
WEBFeb 18, 2015 · Cocombustion behavior of coal gangue, coal and the blends Cocombustion characteristics. The TG, DTG and DSC profiles of coal gangue, coal and their blends under temperature programmed combustion obtained at heating rate of 10 °C min −1 are shown in Fig. influence of heating rates on TG, DTG and DSC curves is .
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WEBA coal gangue image recognition method based on complex conditions is proposed to address the current issue of imagebased coal gangue recognition being greatly affected by complex conditions. First, complex conditions such as different shooting backgrounds, shooting distances, and lighting intensities are set to simulate the underground coal .
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WEBOnline sorting robots based on image recognition are key pieces of equipment for the intelligent washing of coal mines. In this paper, a Deltatype, coal gangue sorting, parallel robot is designed to automatically identify and sort stered coal and gangue on conveyor belts by configuring the image recognition system.
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WEBDec 11, 2023 · Coal gangue reduces the number of pores larger than 14 μm, improves the microstructure uniformity of mullite refractories, and increases their cold compressive strength. The strength of microporous refractory treated at 1500°C containing % coal gangue as raw material is up to ( ± MPa); and its thermal conductivity tested at .
WEBJun 7, 2022 · For the study of coal and gangue identifiion using nearinfrared reflection spectroscopy, samples of anthracite coal and gangue with similar appearances were collected, and different dust concentrations (200 ug/m3, 500 ug/m3 and 800 ug/m3), detection distances ( m, m and m) and mixing gangue rates (onethird coal, .
WEBFeb 8, 2021 · However, these two issues can be tackled simultaneously through reactivating hydrated cement paste (HCP) to be used as new cementitious materials. Moreover, the reactivated HCP can be used together with other solids waste, such as coal gangue (CG), to improve the grinding effect and reactivity. This study aims to .
WEBSep 21, 2023 · The mechanical activation of coal gangue in this study was carried out using a ball mill, and the mass ratio of steel balls to coal gangue was 5:1. After ball milling, the coal gangue powder passing through the mm square hole sieve was thermally activated using a muffle furnace.
WEBFeb 25, 2023 · In this experiment, the influence of coal gangue as the admixture on the performance of drymixed mortar was studied, and the results were analyzed by XRD and SEM. The effects of different ways of crushing, particle size distribution, coal gangue, cement, admixture, and water content on the water retention, consistency, and 7 d .
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WEBSep 1, 2022 · The results show that (1) it is feasible that employing coal gangue to replace natural coarse and fine aggregates in concrete can prepare C30 and C40 concrete; (2) the addition of coal gangue fine ...
WEBNov 15, 2023 · Mix Proportion. According to JGJ512019 "Technical Specifiion for Light Aggregate Concrete," the water–cement ratio of coal gangue mixed aggregate concrete is a fixed value of, and coarse aggregate of coal gangue replaces coarse aggregate of pumice with equal volume, with substitution rates of 0%, 20%, 40%, 60%, .
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WEBThis paper developed a kind of concrete with coal gangue as coarse aggregate in order to solve the environmental pollution problem and meet the requirement of filling material in gobside entry retaining. Firstly physical properties and chemical properties of coal gangue were analyzed, and then several schemes of mix proportion were designed, according to .
WEBFeb 2, 2024 · Mechanical activation refers to the physical and chemical changes that occur in coal gangue during grinding or ball milling processes ... the blades of the mixer and the mixing bowl were wiped with a wet cloth to avoid the influence of drying equipment. Firstly, the weighed solid particles were mixed, and then water was added for mixing. The ...
WEBMay 1, 2024 · The coal gangue was collected from Fuxin, northeast of China. The large particles of coal gangue were crushed and sieved into gangue fine aggregate, according to GB/T [48].The cumulative screening percentage and physical properties of natural and gangue fine aggregate are listed in Table 1 and Table 2 respectively. The .
WEBFeb 17, 2023 · This study investigates the fractal characteristics of the particle size and shape distribution of gangue powder in the "jaw crushingball milling" process using mudstone gangue. For this, fractal theory, laser particle size analyzer, scanning electron microscope and other mesoscopic research methods were introduced. This study has .
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