coal gangue color separation

coal gangue color separation

Coal gangue separation system based on density …

2012-5-27 · Coal gangue separation is an essential part of the development and utilization of coal. A method of separating gangue from coal based on the density by calculating volume and weight of the ores which is measured by the designed equipment was given in this paper. The working principle of the separation method was described firstly, then the system composition of the …...

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Coal and Coal Gangue Separation Based on Computer

2010-8-22 · We consider the problem of automatically separating coal and coal gangue based on computer vision and design a coal and coal gangue separation system framework based on video. Grayscale histogram, fractal dimension and energy value are extracted as ore features. Then we design a 4-layer Levenberg Marquart BP Neural Network to implement multi-feature …...

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[PDF] Automatic Recognition of Coal and Gangue based …

2017-12-3 · A gangue sorting system, and a convolutional neural network model based on AlexNet, which has higher recognition rate for coal and coal gangue, and provides important reference for identification and separation of coal and gangue. We designed a gangue sorting system,and built a convolutional neural network model based on AlexNet. Data enhancement …...

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Review of Coal Gangue Characteristics and Ecological …

2021-5-1 · Coal gangue has become one of the industrial wastes with the largest annual discharge and accumulated stock in China. The disorderly accumulation of coal gangue not only occupies a large amount of land resources and causes natural disasters, but also pollutes the surrounding ecological environment, which in turn affects human health and normal production …...

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Coal and Gangue Separating Robot System Based on …

2021-2-14 · 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. Ro …...

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US Patent Application for COAL AND GANGUE

2021-10-31 · The present invention proposes a coal and gangue separation device, including a first supporting seat, a guide part and multiple material bins. The guide part is hinged with the first supporting seat; the guide part rotates in a vertical direction; and inlets of the plurality of material bins are sequentially distributed on a rotation track of a movable end of the guide part....

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Coal Gangue Sorting System—HXS Intelligent Dry Type …

Coal gangue identification flowchart. Technical features ※ Wide processing size range: It can handle 30- 600mm raw coal. The upper limit of separation is 600mm and the lower limit is 30mm. ※ High separation accuracy: The rate of gangue removing is over 95%, the rate of coal in gangue is less than 2%, and the separation effect is significant....

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Novel Methods for Separation of Gangue from Limestone …

2016-2-26 · Ore sorting is a useful tool to remove gangue material from the ore and increase the quality of the ore. The vast developments in the area of artificial intelligence allow fast …...

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Coal gangue detection and recognition algorithm based …

2021-9-8 · 4.1 Design and implementation of coal gangue detection and recognition device. This study proposes an method for coal gangue detection and recognition on the basis of the DCN-YOLOv3 algorithm. Firstly, the method collects real-time video images of a conveyor belt operation through an industrial camera erected perpendicular to the conveyor belt....

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Mining Color Separation Machine Coal Gangue Sorting …

2022-6-6 · Mining Color Separation Machine Coal Gangue Sorting Machine with Newest Technology, Find Details about Mineral Color Sorter Machine, Mineral Color Sorting Machine from Mining Color Separation Machine Coal Gangue Sorting Machine with Newest Technology - Hefei Obote Automation Equipment Co., Ltd....

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Coal Gangue Sorting System HXS Intelligent Dry Type …

Coal gangue identification flowchart. Technical features ※ Wide processing size range: It can handle 30- 600mm raw coal. The upper limit of separation is 600mm and the lower limit is 30mm. ※ High separation accuracy: The rate of gangue removing is over 95%, the rate of coal in gangue is less than 2%, and the separation effect is significant....

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Separation of gangue from coal based on supplementary …

2019-3-29 · Later, morphology-based supplementary feature and fused texture feature were introduced for separation of coal from gangue (Sun et al. 2019a). Sun et al. (2019b) subsequently used fused texture ......

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Coal reverse flotation. Part I: Separation of a mixture of ...

2006-1-1 · Reverse flotation of a subbituminous coal/gangue mixture and the effect of various factors on the reverse flotation have been investigated. The results showed that the separation of coal from gangue by reverse flotation was possible and good selectivity was achieved, but up to 6. kg/t of DTAC (dodecyltrimethyl ammonium chloride) were needed.. In addition, the separation …...

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Energies | Free Full-Text | Image Recognition of Coal and …

2019-5-8 · Recognizing and distinguishing coal and gangue are essential in engineering, such as in coal-fired power plants. This paper employed a convolutional neural network (CNN) to recognize coal and gangue images and help segregate coal and gangue. A typical workflow for CNN image recognition is presented as well as a strategy for updating the model parameters. …...

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Separation Of Gangue From Coal Based On Histogram

2013-11-25 · Coal gangue is residual abandoned coal, produced after the pre-processing steps of mining. It is an amalgam of several unwanted substances. It is important to separate coal gangue from lump coal before fed to thermal power plants. In this paper, investigation on the fundamental characteristics of coal images and gangue images with digital image processing technology is …...

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Separation of gangue from coal based on supplementary ...

:. The separation of coal and gangue is an important aspect of coal production, which can improve coal quality, save energy, reduce consumption, and enable the rational use of resources. At present, manual selection remains widely implemented, but the working environment is harsh, labour intensity is high, and efficiency is low....

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Multispectral and Joint Colour-Texture Feature …

2017-8-26 · arating gangue from coal based on density by calculat-ing volume and weight of the ores The experiment showed that this method is suitable for recognition of coal and gangue with the size larger than 10 cm3, with the separation accuracy up to 60%. Chatterjee [21] proposed a vision-based rock-type classification sys-tem for limestone....

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coal-gangue

Gangue, also called coal gangue, is the solid waste discharged in coal mining process and coal washing process, black rock harder than coal. Its carbon content is low and exists along with coal seam. Gangue could be found in roof, bottom board, inter-layer, and it could be selected in washing process. The main ingredient are Al2O3, SiO2, Fe2O3 ......

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Separation of gangue from coal based on supplementary …

2019-3-29 · Later, morphology-based supplementary feature and fused texture feature were introduced for separation of coal from gangue (Sun et al. 2019a). Sun et al. (2019b) …...

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Study of Automatic Separation System of Coal and …

Separation of coal and gangue is an important procedure in coal production. Present separating technology has such defects as low efficiency, high pollution, high energy consumption, and high cost. Based on the analysis of grey value of digital images, we prompt a new separation method using image segment. Optimizing ordinary illumination ......

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Coal gangue detection and recognition algorithm based …

2021-12-7 · the raw coal''s combustion heat; therefore, gangue separation is This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the ... a coal gangue recognition method driven by deep learning that is based on the differences in the ......

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Associations of Gangue Minerals in Coal Flotation Tailing …

2022-7-27 · Tailing product T r1 exhibited the highest ash content of 67.75%, implying that a large number of coal and gangue combinations existed in the coal flotation tailings, which were difficult to separate directly. After two flotation separations, the low-ash products with a yield of 19.28% and an ash content of less than 10% could be recovered....

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Coal and Gangue Separating Robot System Based on …

2021-2-14 · 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. Robots with computer vision technology have become current …...

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Construction of intelligent visual coal and gangue

Due to the energy composition of China rich in coal, poor in oil and low in gas, coal will continue to be the main energy source in China for a long time. In order to improve the intelligence level of coal mine and realize the efficient and clean utilization, coal and gangue sorting is the research focus of many experts and scholars. At present, the construction of the intelligent visual coal ......

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Coal and Gangue Underground Pneumatic Separation

Coal and gangue underground pneumatic separation is of key importance for green mining. Two kinds of arrangement schemes for high-pressure value used in pneumatic separation system are proposed in this study. Pneumatic separation effects are examined under different arrangement of high-pressure value. Here, theoretical pneumatic separation distance formulas of mineral …...

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Coal and Coal Gangue Separation Based on Computer …

2010-8-1 · Results showed that the accuracy for separation of gangue from limestone, a joint color-texture method was 98 % and for separation of gangue from coal, multispectral method …...

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