Processing and utilization of coal gangue

Research on methods to differentiate coal and gangue …

This article proposes a method that can be used to improve the differentiation of coal and gangue via image processing and use of a support vector machine (SVM). Images of coal and gangue were converted to grayscale in this approach, the background was …

Utilization of coal gangue for the production of brick

Abstract. Coal gangue, an industrial solid waste discarded from coal mining and processing, was used as the sole raw material to prepare brick. The …

‎Process Chemistry of Coal Utilization on Apple Books

2021-8-26 · Process Chemistry of Coal Utilization: Chemistry Toolkit for Furnaces and Gasifiers presents a broad range of quantitative methods for solving common problems surrounding the performance of coal utilization technologies. As a logical follow up to Niksa''s 2019 publication which covers the Impa…

Application of Coal Gangue as a Coarse Aggregate in …

2021-11-11 · Along with the excavation and washing of coal in the production process, large amounts of rock-like coal gangue (CG) accompanying the carboniferous beds are discharged as industrial residues, accounting for around 10–20% of the coal production [2,3,4] the largest coal production country, namely China, more than 700 million tons of coal gangue was expected in …

Clean Processing and Utilization of Coal Energy

2006-6-20 · To realize highly efficient utilization of coal, low pollution and low cost are great and impendent tasks. These difficult problems can be almost resolved through establishing large-scale pithead power stations using two-stage highly efficient dry coal-cleaning system before coal burning, which is a highly efficient, clean and economical strategy considering the current …

Utilization of coal gangue as coarse aggregates in …

2021-1-25 · In most of the studies on coal gangue concrete from the aspect of material, 50% coarse aggregate replacement ratio was commonly used as the maximum replacement ratio whilst coarse aggregate replacement ratio was also investigated by some researchers .Since the aim of this study is to maximize the application efficiency of coal gangue in …

Sustainability | Free Full-Text | Utilization of Coal Gangue …

2020-6-4 · 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 …

Comprehensive utilization and environmental risks of coal …

2019-12-1 · In addition, the composition of coal gangue is closely associated with coal mining process. At present, the comprehensive utilization of coal gangue is mainly selected according to the carbon content and calorific value. Coal gangue with a high carbon content (>20%) is commonly used for power generation and heating.

Utilization of coal gangue for the production of brick

2016-6-8 · Coal gangue, an industrial solid waste discarded from coal mining and processing, was used as the sole raw material to prepare brick. The coal gangue was crushed, homogenized, milled and then pressed into green compacts. The dried compacts were sintered at different temperatures for 2 h. The obtained brick samples were characterized with X-ray diffraction, …

Sustainable and clean utilization of coal gangue: activation …

2022-5-12 · Coal gangue, a by-product produced during the coal processing, has a serious impact on the environment. Using coal gangue as a fertilizer has been proven helpful in potentially reducing its environmental impact and improving its value. In this study, the formation mechanism and influencing factors of coal-gangue-based silicon fertilizer was studied using XRD and FT …

Eco-friendly treatment of coal gangue for its utilization as ...

2021-2-20 · CG is a residue produced from the processing of coal mining and coal washing. It has been estimated that CG accounts for about 10–15% of raw coal production ... Environmental effects of coal gangue and its utilization. Energy Sources, Part A Recovery, Util. Environ. Eff., 38 (2016), pp. 3716-3721. CrossRef View Record in Scopus Google Scholar.

Do You Know Coal Gangue Processing Machines

 · Coal gangue would be the common term of solid waste materials coming from coal mine construction, coal production method widely typical in the construction, development diving, coal mining and coal washing process with exhaust carbon rock. Three aspects of coal gangue source. Coal Gangue Crusher. 1. Rock roadway drivage generated when the coal ...

The Sustainable Utilization of Coal Gangue in Geotechnical …

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 CG utilization and potential future application is gaining paramount importance.

Coal Gangue Comprehensive Utilization Grinding Mill …

2021-5-7 · Coal gangue belongs to solid waste. What equipment is used in the production line of comprehensive utilization of coal gangue? As a manufacturer, HCMilling (Guilin Hongcheng) has rich experience in flour production and manufacturing, and also provides tailor-made selection scheme to meet the project production. The new generation of vertical roller mill is a special …

2011-12-30 · Value-added utilization as one of the important supplementary ways will become the development direction of comprehensive utilization of coal gangue. It is of significance to further improve the utilization level and efficiency by establishing the circular economy routes of value-added utilization proposed in this paper based on the development situation of value-added …

Comprehensive utilization and environmental risks of coal …

2019-12-1 · Investigation into trace element partitioning behavior from a coal gangue-fired power plant in Shanxi province, China, has been conducted and showed that Hg, As, Be, and Cd were highly volatile elements in the combustion of coalgangue, which were notably enriched in fly ash and may be emitted into the environment via the gas phase.

Coal gangue detection and recognition algorithm based …

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.

Sustainability Benefits of Utilizing Coal Gangue as Fill …

2022-3-20 · Coal gangue is a by-product generated during the coal mining operations. It is a granular material with grain size varying from 0.075 to 20 mm.

Mechanism on Activation of Coal Gangue Admixture

2021-9-28 · Coal gangue, an industrial waste, is rich in silicon and aluminum phase and may be used as a mineral admixture in concrete after moderately stimulating activity, allowing for efficient solid waste utilization. This study used a mortar strength and activity evaluation method to investigate single or compound activation methods to find the optimum activation method of …

Comprehensive Utilization of Coal Gangue | Semantic …

The coal gangue is a kind of solid wastes from coal mining and separating,which is also a kind of grey-black rock harder than coal,characterized by low content of carbon and association with coal seams during coal accumulation.The impact of coal gangues on the environment has been expounded in the paper,and the comprehensive utilization purposes of coal gangues have …

Extraction of alumina from alumina rich coal gangue by a …

2020-4-29 · Coal gangue is an industrial solid waste produced by coal mining and processing [1–3]. The average production of gangue accounts for 10–15% of raw coal production [4,5], making coal gangue one of the biggest solid wastes in China. At present, utilization ratio of coal gangue can reach about 60% in some countries.

Utilization of coal gangue for the production of brick

Coal gangue, an industrial solid waste discarded from coal mining and processing, was used as the sole raw material to prepare brick. The coal gangue was crushed, homogenized, milled and then pressed into green compacts. The dried compacts were sintered at different temperatures for 2 h. The obtained brick samples were characterized with X-ray diffraction, scanning electron …

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2021-5-21 · Research on Ultrasonic Enhanced Coal Gangue Flotation Decarbonization Utilization Process 2021-05-21

The comprehensive utilization of the coal gangue.

2022-6-23 · Gangue is a low-carbon solid waste produced during coal mining and washing, accounting for about 10%− 15% of the total coal output [3]. The cumulative gangue output in China is close to 5 ...

The utilization and soure of coal gangue

2021-8-20 · The source of coal gangue: Coal gangue is the general term of solid waste materials coming from coal mine construction, coal production process widely common in the construction, development diving, coal mining and coal washing process with exhaust carbon rock. Three aspects of coal gangue source. 1.

Sustainability | Free Full-Text | Utilization of Coal Gangue

2020-6-4 · 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 …

Coal Processing and Utilization

2019-12-12 · This book is a direct outgrowth of classes that the authors gave over a period of three decades to a university audience taking a Mineral Beneficiation course as a major that included coal processing and utilization. It is designed to be used as a student''s (or layman''s) first introduction to coal processing and utilization, motivating the concepts before illustrating them …

(PDF) Utilization of Coal Gangue for Earthworks: …

However, the environmental impacts in the form of carbon emission associated with their utilization ought to be. In recent years, there is a growing trend to utilize industrial residues/wastes with the aim of conserving natural resources. ... Utilization of Coal Gangue for Earthworks: Sustainability Perspective. Lecture Notes in Civil ...

Utilization of coal gangue for the production of brick

Comprehensive utilization and environmental risks of coal

Comprehensive utilization and environmental risks of coal …

The amount of coal gangue, a by-product of coal mining and washing, is rapidly increasing with the growing trend of energy consumption. The accumulated coal gangue without appropriate utilization has resulted in a squander of resources, waste disposal and environmental pollution issues. Over the past few decades, there has been wide attention ...