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  • China Medium and Long Term Strategies and Action for

     · Current situations of coal development and utilization in China (ii) Development of coal clean utilization technology gangue slime and build coal-based circular economy industry chain and improve added value of product and resource comprehensive utilization rate Carry out ecological treatment and land reclamation for depression area

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  • Challenges and Developments in the Utilization of Fly Ash

     · Fig. 2. Illustrates the utilization situation of CFA in China in 2013. Data source 2014 Annual Report on Chinese Resource Comprehensive Utilization Situation issued by China National Development and Reform Commission . In addition there is a little consumption of CFA in the road engineering agriculture mineral extraction etc. occupying

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  • Current Situation and Prospect of Coal Industry in China

    Current Situation and Prospect of Coal Industry in China Mr. Wang Hongqiao Vice President of China National Coal Association August 10 2016 . Group have built large Circular Economy Parks with comprehensive utilization of resources and environmental protection.

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  • Current development situation of Coal to SNG in China

     · 3 Xinmeng Energy comprehensive utilization of coal 8.0 4 Xinao underground gasification 0.20 5 CNOOC Datong SNG project Shangxi 4.0 6 CNOOC Utilization of Coal Inner Mongolia 12.0 7 Zhundong Wucaiwan SNG project Xinjiang 12.0 8 Zhundong Dajin SNG project Xinjiang 4.0 9 Zhundong Xiheishan SNG project Xinjiang 6.0

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  • An analysis on the current situation of energy

     · An analysis on the current situation of energy development and its environmental problems in Yulin City. The largest output of industrial solid waste is coal gangue followed by fly ash slag and so on. This may be the reason why there is a huge gap between the comprehensive utilization volume of industrial solid waste and the amount

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  • Analysis and improvement measures of defective coal gangue

     · Pengtao Wang 2019 Study on the current situation and existing problems of coal gangue comprehensive utilization J Science and technology innovation 16 . Google Scholar. Honggang Sun 2014 Analysis of the impact of coal gangue raw materials on the quality of sintered J Coal

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  • Coal and Gangue Separating Robot System Based on

     · 1. Introduction. In coal production the raw coal mined directly from coal mines contains a lot of gangue which contains a lot of heavy metals and affects the calorific value of coal causing serious pollution to the environment .Therefore it is essential to separate coal and gangue to make them play their respective roles 2 3 .As an important part of the coal industry coal gangue

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  • (PDF) Power Generation from Coal Gangue in China

    The findings suggest that a comprehensive system for managing resources (e.g. coal gangue) should be developed to improve the recovery and utilization of these resources and promote a more eco

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  • Activity and structure of calcined coal gangue SpringerLink

    Coal gangue was activated by means of calcination in seven temperature ranges. Systematic research was made about activation mechanism and structural evolution. Glycerin-ethanol method SEM MIP and XRD were used to determine the variation of structure and activation of coal gangue during the calcination. The experimental results show that because of heat treatment in the range of calcination

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  • Coal Gangue and its Application Research in Building

    The current statistics show coal gangue discharge is 100 million tons per year and the accumulated discharge has been as high as 4.5 billion tons. It comprises the largest portion of solid waste in our country. Its storage not only requires valuable land resources but also pollutes the air water and soil of the storage sites resulting in waste of resources.

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  • Performance of cemented coal gangue backfill Journal of

     · References 1 CAO Jian-jun LIU Yong-juan GUO Guang-li. The current situation in comprehensive utilization of gangue J . Techniques and Equipment for Environmental Pollution Control 2004 5(1) 19−22.(in Chinese) 2 SUN Liang. Factors influencing development of comprehensive utilization of coal gangue J .

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  • White paper on energy -- china.cn

     · I. Current Situation of Energy Development The comprehensive utilization efficiency in the processing conversion storage and end-use of energy was 33 percent in 2006 up eight percentage

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  • Comprehensive utilization and environmental risks of coal

     · 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.

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  • Field study on the improvement of coal gangue filling

     · In this study dynamic compaction method was used to treat the gangue hill of the Xinglongzhuang coal mine in China and the deep compaction of deep coal gangue was examined. The crushing characteristics and improving depth of coal gangue filling under different dynamic compaction conditions were determined. Dynamic compaction tests with different tamping energy were performed

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  • Research of Comprehensive Utilization of Coal Gangue

    comprehensive utilization of coal gangue and the future development direction of comprehensive utilization of coal gangue in China was discussed. Comprehensive Utilization of Coal Gangue Chemical and Mineral Composition Gangue is a collection of sedimentary rocks and different sedimentary rocks are mainly composed of diagenetic minerals.

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  • Prospect of the Utilization of Low Concentration Coal

     · Current situation and issues of CMM utilization in China CMM Drainage 11.4 billion m³ in 2012 CMM Utilization 3.5 billion m³ in 2012 . 4 One of the major reasons of such situation is that the coal seam occurrence conditions in China are relative complicated and the comprehensive utilization of CMM. 1. Current situation and issues of CMM

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  • Analysis and improvement measures of defective coal

     · Pengtao Wang 2019 Study on the current situation and existing problems of coal gangue comprehensive utilization J Science and technology innovation 16 . Google Scholar. Honggang Sun 2014 Analysis of the impact of coal gangue raw materials on the quality of sintered J Coal

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  • Microstructure of Coal Gangue and Precipitation of Heavy

     · The microstructure and mineral composition of the gangue play a decisive role in the precipitation of heavy metal elements. In this study the microstructure mineral composition and precipitation of heavy metal elements of coal gangue with different weathering degrees were analyzed through electron microscopy X-ray diffraction and static immersion leaching experiments.

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  • Utilization of Coal Gangue Aggregate for Railway Roadbed

    Coal gangue aggregate was employed as high-grade railway subgrade filler andprepared concrete for roadbed drainage (named coal gangue roadbed protecting concrete—CGRPC). First the basic properties of coal gangue such as particle size distribution ignition loss strength change under water softening and compression performance were measured.

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  • I. Current Situation of Energy Development

     · The comprehensive utilization efficiency in the processing conversion storage and end-use of energy was 33 percent in 2006 up eight percentage points over 1980.

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  • Study on applicability of coal gangue at base layer of

     · Coal gangue is a waste from coal mining and lacks application research in airport runway construction. Referring to the requirements of the airport pavement for the basement the applicability of a coal gangue through physical and mechanical indicators is analyzed in the navigation airport.

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  • Microstructure of Coal Gangue and Precipitation of Heavy

     · According to the current evaluation criteria of water environment quality and the test results of coal gangue composition the main potential pollution components were determined as Fe Mn Cu Zn Pb Cd As Be Hg Se Ca and Na. "Harmfulness of coal gangue to environment and its comprehensive treatment and utilization " Coal Processing

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  • Gangue crusher-Environmental opportunitiesBusiness 11029

     · The face of today s economic and energy situation in the crisis company for the current recovery of the gangue utilization to carry out a series of processing achieved a major breakthrough research and development to create a large jaw crusher impact crusher cone crusher can coal waste rock crusher for processing and expand the scope of its use can be used for

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  • An analysis on the current situation of energy development

     · An analysis on the current situation of energy development and its environmental problems in Yulin City. The largest output of industrial solid waste is coal gangue followed by fly ash slag and so on. This may be the reason why there is a huge gap between the comprehensive utilization volume of industrial solid waste and the amount

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  • The Current Situation of Comprehensive Utilization of Coal

    Coal gangue is one of the largest industrial solid wastes in China the comprehensive utilization of coal gangue has important social economic and environmental benefits.

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  • Alkali-Activated Coal Gangue-Slag Concrete

     · the comprehensive utilization of coal gangue resources 14 15 . Alkali activation can actually be represented via two di erent models both corresponding to two extremely di erent conditions in terms of the starting situation and chemical composition 3 . The first

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  • Sensors Free Full-Text Coal and Gangue Separating

    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 research hotspots due to simple

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  • The present situation of and development suggestions on

    Introduces the status of beneficial and comprehensive utilization of coal gangue in China and foreign countries and some approaches for beneficial and comprehensive utilization of coal gangue in Shanxi Province analyzes the situation faced by and problems existing in Shanxi s comprehensive utilization of coal gangue and puts forward several suggestions on promoting Shanxi s comprehensive

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  • Microstructure of Coal Gangue and Precipitation of Heavy

     · The microstructure and mineral composition of the gangue play a decisive role in the precipitation of heavy metal elements. In this study the microstructure mineral composition and precipitation of heavy metal elements of coal gangue with different weathering degrees were analyzed through electron microscopy X-ray diffraction and static immersion leaching experiments.

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  • Research of Comprehensive Utilization of Coal Gangue

    How to solve this environment pollution and effectively utilize the coal gangue is a main subject and difficult problem faced at present. In this paper we performed a comprehensive analysis of the development about comprehensive utilization of coal gangue and provided a basis for the research of coal gangue and environmental protection.

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  • Research of Comprehensive Utilization of Coal Gangue HAN

    How to solve this environment pollution and effectively utilize the coal gangue is a main subject and difficult problem faced at present. In this paper we performed a comprehensive analysis of the development about comprehensive utilization of coal gangue and provided a basis for the research of coal gangue and environmental protection.

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  • Physical and chemical properties and distribution

     · Abstract Coal gangue is a solid waste with the largest emissions during the process of coal mining processing and utilization in Huainan mining areas. Many coal emissions have caused worsening situations dealing with land occupation and the problem of

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  • Zhu Liyang comprehensively promoting the

     · In view of the varieties of coal gangue fly ash and crop straw with high comprehensive utilization it is necessary to improve the quality of comprehensive utilization by producing green building materials efficient extraction of valuable components and developing clean energy while expanding the utilization scale. to achieve a good situation

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  • Comprehensive Evaluation of Low-carbon Economic

     · part introduces current situations of energy consumption and carbon emission in Guangdong. Then the author constructs an index-system and evaluation model for low-carbon economic development in the third part. In the fourth part horizontal and vertical evaluations are analyzed. And the

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  • Comprehensive utilization and environmental risks of coal

    Journal of Cleaner Production Abstract 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.

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  • Is the Coal Gangue Really UselessHongxing Machinery

     · As far as the current utilization situation of coal gangue the more mature approach is to make bricks hollow block cement raw materials and lightweight aggregate. 5. Coal gangue is used to generate electricity. Coal gangue contains carbon hydrogen oxygen and other calorific components.

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  • CHINA COAL CONSUMPTION CAP PLAN AND RESEA RC

     · over 620 000 tons of coal gangueenough to occupy 20 000 hectaresand has caused over 1 300 000 hectares to be lost to land subsidence. Coal contains arsenic antimony boron cadmium chromium and heavy metals. The death rate per one million tons of mined coal is relatively high and lung disease from coal dust accounts for over

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  • The Current Situation of Comprehensive Utilization of Coal

    Coal gangue is one of the largest industrial solid wastes in China the comprehensive utilization of coal gangue has important social economic and environmental benefits. In this paper the coal gangue and comprehensive utilization have been discussed in detail.

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  • Performance of cemented coal gangue backfill SpringerLink

     · The current situation in comprehensive utilization of gangue J . Techniques and Equipment for Environmental Pollution Control 2004 5(1) 19–22.(in Chinese) Google Scholar 2 SUN Liang. Factors influencing development of comprehensive utilization of coal gangue J . China Coal

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  • Current Situation and Prospect of Coal Industry in China

    Current Situation and Prospect of Coal Industry in China Mr. Wang Hongqiao Vice President of China National Coal Association August 10 2016 . Group have built large Circular Economy Parks with comprehensive utilization of resources and environmental protection.

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  • I. Current Situation of Energy Development

     · The comprehensive utilization efficiency in the processing conversion storage and end-use of energy was 33 percent in 2006 up eight percentage points over 1980.

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  • Frontiers Green Mining Efficiency and Improvement

    The comprehensive utilization of coal gangue has two aspects. One aspect is backfilling the mining subsidence area and the other is the production of building materials. The abandoned mine water is treated and recycled back into production and domestic water.

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