function coal gangue provide

May 27, 2018 A237 at the problems of traditional coal gangue image recognition methods such as difficult extraction of artificial features and low accuracy of recognition, a method of automatic identification of coal gangue images by convolution neural network is proposed. Based on the classic convolution neural network LeNet-5, this method is improved from input sample size, activation …

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A recognition method based on the IMF (inherent mode function) energy moment and SVM was proposed by Dou X et al. [17], which can identify coal and gangue in …

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Relu activation function, followed by dropout layer set to ... CNN combined with the transfer learning method we used can provide fast and robust coal/gangue distinction that does not require ...

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Sorting gangue from raw coal is an essential concern in coal mining engineering. Prior to separation, the location and shape of the gangue should be extracted from the raw coal image. Several approaches regarding automatic detection of gangue have been proposed to date; however, none of them is satisfying. Therefore, this paper aims to conduct gangue segmentation using a U-shape fully ...

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A recognition method based on the IMF (inherent mode function) energy moment and SVM was proposed by Dou X et al. [17], which can identify coal and gangue in …

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processes of heavy metals in coal gangue can provide a basis for controlling the impact of coal gangue on envi-ronmental pollution (Zhou et al. 2014a, b). The coal gangue are backfilled in the subsidence area and covered by soils, or stacked to be the coal hill, that can

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Feb 01, 2020 1. Introduction. Coal gangue is a worthless solid waste and uneconomic fraction with a composition similar to kaoline (Al 2 Si 2 O 5 (OH) 4), which is co-deposited with the required fossil fuel coal resources.During the mining process, coal is extracted as coal gangue being deposited as an industrial solid waste near the coal mine.

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Jan 20, 2020 Coal gangue is the largest solid waste produced by coal mines, accounting for about 10% of coal production. The annual emissions of coal gangue in China is about 150–200 million tons. Coal gangue causes solid, liquid and gas pollution, which not only wastes resources, energy and occupies a large amount of land, but also pollutes the ...

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A process for the flotation of particles of lignitic coal, subbituminous coal or oxidized bituminous coal contained within a slurry of coal and gangue, comprising the steps of dispersing a surfactant throughout the slurry, first conditioning the slurry such that the surfaces of the particles of coal are selectively coated by the surfactant to produce activated particles of coal, dispersing an ...

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A process for the flotation of particles of lignitic coal, subbituminous coal or oxidized bituminous coal contained within a slurry of coal and gangue, comprising the steps of dispersing a surfactant throughout the slurry, first conditioning the slurry such that the surfaces of the particles of coal are selectively coated by the surfactant to produce activated particles of coal, dispersing an ...

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Jun 03, 2016 In recent decades, green coal mining technology has developed rapidly due to the environment and energy issues. As one of the green techniques, using loose gangue to backfill goof has become an effective measure to revolver coals under buildings, railways and water bodies and to control surface subsidence and overburden deformation (Qian et al. 2007; Miao et al. 2015).

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Apr 20, 2021 A green concrete, new type of coal gangue-based geopolymer concrete, was prepared. Coal gangue geopolymer concrete contains many mineral admixtures and alkaline activators; the concrete mixture ratio design has always been a complex problem. The framework of the mix design optimization by the proposed method is established in this work. The paper aims to minimize the …

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In coal production, the raw coal contains a large amount of gangue, which affects the quality of coal and pollutes the environment. Separating coal and gangue can improve coal quality, save energy, and reduce consumption and make rational use of resources. The separated gangue can also be reused.

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Jan 25, 2021 In this paper, coal gangue is utilized as a replacement of coarse aggregate in structural concrete. The effects of coal gangue on the mechanical properties of concrete material, circular reinforced concrete column and concrete-filled steel tubular column are experimentally studied and discussed in detail.

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Jan 02, 2021 1. Introduction. Separation of coal and gangue is the key to efficient and clean utilization of coal [].In this context, mineral sorting technology based on computer vision has been the focus of research in recent years [].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 ...

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As a massive solid waste, the high value-added utilization of coal gangue has received more and more attention in China. This study focuses on the utilization of coal gangue aggregate in railway engineering for coal transportation passage. Coal gangue aggregate was employed as high-grade railway subgrade filler andprepared concrete for roadbed drainage (named coal gangue roadbed protecting ...

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Mar 09, 2020 It is crucial for soil nutrient recycling and utilization, energy transmission, ecosystem balance, and sustainable soil use in soil ecosystems [ 6, 7, 8, 9 ]. Therefore, successful restoration relies on the regeneration of soil microbial communities [ 10, 11, 12, 13 ].

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According to the functions or types of Coal Gangue, Coal Gangue can be classified into many types. ... Whether you are for group or individual sourcing, we will provide you with the latest technology and the comprehensive data of Chinese suppliers like Coal Gangue factory list to enhance your sourcing performance in the business line of ...

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