Mineral Processing | SpringerLink
Mineral Processing. Mineral processing is the process in which chemical or physical methods are used to separate the useful minerals in the ore from the useless minerals (usually called gangue) or hazardous minerals, or to separate multiple useful minerals. In the early years, mineral processing was called mineral concentration or …
Coal gangue brick making process and its advantages | LZZG
The coal gangue treatment process flow is as follows: Rough selection: First, the gangue is screened through a vibrating screen or a grinding screen, and divided into larger and smaller parts. Most of the stones are screened out, while the fine particles enter the grinding machine or ball mill for grinding. Flotation: Mix finely ground coal ...
Image feature extraction and recognition model …
Grayscale processing of coal and gangue images. In the processing of color images, the three components of R, G and B should be processed respectively, but in fact they cannot reflect the ...
Gangue Source Reduction Technology and Process …
Abstract. The precise identification of damp, sticky coal gangue; efficient jet nozzle separation; and process layout in a narrow, restricted space are essential …
Copper Processing | Multotec
Home. Copper Processing. Copper processing uses physical, mechanical and / or chemical methods to convert run-of-mine (ROM) copper ore to high-quality, pure copper. A wide range of mineral processing …
mining machinery smashes coal gangue
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coal washing equipment
The coal washing process mainly includes the following: 1. After crushing and screening, the raw coal is loaded into the hopper, and the coal below 80mm is sent to the jig through the belt conveyor, after jigging, the clean coal, medium coal and gangue are separated; the gangue and medium coal are discharged through the elevator.
Environmental hazards and comprehensive utilization of
The mineral content of high alumina gangue clay is very high, and its main mineral composition is kaolinite. Kaolinite is a 1:1 type dioctahedral layered silicate mineral belonging to the triclinic crystal system, whose crystal structure (Fig. 1 a and 1b) consists of structural layers formed by joining of silica-oxygen tetrahedra and alumina-oxygen …
Classification of coal and gangue under multiple
Machine vision methods based on visible light are widely used in the coal preparation field. ... The process of coal and gangue recognition method used in the study is shown in Fig. 1. Download : Download high-res image (101KB) Download : Download full-size image; Fig. 1. Process of the relief-SVM recognition method. 3. Experiments.
Investigating comparisons on the coal and gangue in …
Online intelligent recognition of coal and gangue is an important aspect of coal mine intelligent development. Current research focuses more on improving recognition accuracy through optimizing image processing algorithms, but there is limited research on the characteristics of coal gangue materials themselves, particularly the comparative …
Low-carbon utilization of coal gangue under the carbon
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 …
Henan Dewo Machinery Mining & Construction Solutions
About dewo machinery. Approved by the National Commerce Ministry, established in 1986, located in Zhengzhou City, Henan Province, Covering area about 300,000 square meters, With more than 1000 employees which including R&D staffs more than 100 people, Henan Dewo is a comprehensive enterprise which integrates researching, Manufacturing, …
Coal gangue processing
Coal gangue processing. Coal gangue is a rock mixed with organic and inorganic compounds co-deposited with coal during coal formation.Usually in a thin layer and in the coal seam or in the top of the coal seam, the …
Research on methods to differentiate coal and gangue using …
Request PDF | On Oct 16, 2018, Ziqi Lv and others published Research on methods to differentiate coal and gangue using image processing and machine learning | Find, read and cite all the research ...
High Value-added Utilization Situation of Coal Gangue
Coal gangue is a carbon-containing rock discharged from coal mines in the production process of development, mining, and coal washing. It is also one of the largest industrial solid wastes in my country. Containing carbon and other organic matter and inorganic silicate minerals, direct discharge or filling back into wells will waste resources, …
How to Recycle and Process Coal Gangue: 7 Effective Ways
Processing coal gangue is usually essential in coal mining because it involves environmental protection and resource utilization issues. The following are some …
Copper Processing | Multotec
Copper Processing. Copper processing uses physical, mechanical and / or chemical methods to convert run-of-mine (ROM) copper ore to high-quality, pure copper. A wide range of mineral processing equipment is used in converting the copper ore to the final copper product, our solutions range includes: Screening Solutions. Cyclone Solutions.
The real-time detection method for coal gangue based on
Lai Wenhao constructed a coal gangue dataset through multispectral analysis of coal gangue recognition, and using an improved YOLOv4, achieved a detection accuracy of over 98%, the detection time is approximately 4.18 s. He Jiang et al. designed a coal and gangue detection system using machine vision and the AlexNet network. …
Sensors | Free Full-Text | Research on Recognition of …
The results showed that the proposed laser speckle image features can facilitate more stable coal gangue recognition with illumination factors, providing a new, …
A Brief Introduction to Copper Oxide Ores | Fote Machinery
Binding ration= (bonded copper oxide amount / total copper oxide amount) × . There are three ways to combine copper oxide and gangue: (1) It is mechanically dispersed in the gangue to become finely dispersed inclusions. (2) Become an isomorphism in a chemical way. (3) Become adsorbed impurities.
Machine learning applications in minerals processing: A …
Machine learning applications in mineral processing from 2004 to 2018 are reviewed. •. Data-based modelling; fault detection and diagnosis; and machine vision identified as main application categories. •. Future directions are proposed, including comments on technical research requirements and industrial application.
Mineral Processing Glossary
The settling of solid particles as a result of either gravity or centrifugal action. Separation. The fundamental step of mineral processing by which the product from the size reduction step (liberation) is separated into a valuable mineral stream (concentrate) and a gangue stream (tailings). Set Point.
Gangue Source Reduction Technology and Process …
The precise identification of damp, sticky coal gangue; efficient jet nozzle separation; and process layout in a narrow, restricted space are essential technologies for gangue source reduction based on underground gangue photoelectric separation, which is critical for the long-term growth of coal mines. In this paper, the X-ray absorption fine …
Mineral processing | Metallurgy, Crushing
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Full article: A review of intelligent coal gangue separation technology
tandfonlineWhy is automatic removal of coal gangue important?Therefore, reducing the amount of coal gangue in raw coal is one of the necessary ways to achieve efficient clean utilization of coal resources and ensure the development of clean, low-carbon, and green energy in our country. In coal mining, the automatic removal of coal gangue is an important link in modern coal production and processing.Full article: A review of intelligent coal gangue separation technology
tandfonlineWhat are the application problems of coal gangue separation equipment?Some application problems exist in traditional coal gangue separation equipment, such as difficulty in identifying black coal gangue similar to coal. The linear array detector used by the sorting equipment has many pixels and a large amount of data processing, so it needs to be equipped with an industrial computer for special processing.Full article: A review of intelligent coal gangue separation technology
tandfonlineWhy is intelligent coal gangue sorting equipment important?The development of intelligent coal gangue sorting equipment can effectively increase the utilization rate of coal resources and enhance the economic benefits of enterprises. This process is necessary to automate coal mining and dressing.Full article: A review of intelligent coal gangue separation technology
tandfonlineFeedbackIntelligent Gangue Sorting System Based on Dual …
WEBTo tackle the challenges associated with coal gangue target detection, including algorithm performance imbalance and hardware deployment difficulties, in this …
Image feature extraction and recognition model …
Least squares vector machine has a strong ability to classify, so the use of least squares vector machine to achieve coal gangue identification, and build coal gangue identification model. The results show that the recognition accuracy of the model for coal gangue images is 92.2% and 91.5%, respectively, with gray skewness and texture contrast ...
Cascade network for detection of coal and gangue in the …
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 water for heavy-media-based techniques, and is also preferable to other advanced recognition methods such as X-rays [3] or three-dimensional laser scanning [4].
Research on methods to differentiate coal and gangue using …
Machine vision technology [12,13] is widely used in coal gangue image processing [14], target region segmentation [15], and other fields for its economic, efficient, safe, and reliable ...
Coal gangue beneficiation tailings treatment process flow
The coal gangue treatment process flow is as follows: Rough selection: First, the gangue is screened through a vibrating screen or a grinding screen, and divided into larger and smaller parts. Most of the stones are screened out, while the fine particles enter the grinding machine or ball mill for grinding.
Mineral Processing Plants – What Do I Need to Know?
Mineral processing plants are customized to suit the operation's needs, but there are several kinds of machinery you can expect to see. Mining and hauling equipment and screening and washing equipment are common. Depending on the operation and what materials are processed there, you may see one or several crushers.
A fast recognition method for coal gangue image processing
A modified YOLOv4 model, named GYOLO, for coal gangue recognition is proposed with the aim of reducing model parameters, improving calculation speed, and reducing equipment requirements. This paper proposes a modified YOLOv4 model, named GYOLO, for coal gangue recognition with the aim of reducing model parameters, …