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2021-5-6 · spontaneous combustion gangue; spontaneous combustion gangue sand; Coal Gangue Portland Cement; strength : Self-igniting gangue concrete from C15 to C40 was successfully produced with fine and coarse aggregate of coal gangue through mix design method of lightweight aggregate concrete.

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CNKI

2021-4-24 · G X, et al. Study on carbonation depth of spontaneous combustion coal gangue lightweight aggregate concrete[J]. Chinese Journal of Enviromental Engineering, 2021, 10 (5) 2616-2620. [4]Cao Y Z, Guo S Q, Zhai J D. The mode of occurrence of mercury

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spontaneous combustion,n【】 n

Experiment shows that with the increment of substituted spontaneous combustion gangue powder for cement, the water demand of gelled material system is increased gradually. ,,。

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CN101011009A Greening method of self-ignition

The invention relates to a method for greening the mine, comprising that based on the competition of mine, furnishing the slope into reverse-slope inclined terrace, using slurry method to extinguish fire and reducing temperature, plating disinfector on the face of mine, using inertia material to cover and roll the face of mine, covering soil and building soil and water conservation, greening

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Gangue in a sentence (esp. good sentence like quote

9 The coal gangue dump mode and the effective particle-size makeup decide the air permeability of coal gangue to a certain extent, which accelerates the spontaneous combustion. 10 To gangue rocky mountain management, both must guarantee the security, and must conform to the environmental protection requirement.

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Decision Tree classifier of coal & gangue Stack Areas

Coal & gangue stack occupation area, brining about land resources waste of mining area, is one of the geological disasters. At the same time, it leads to the resulting of spontaneous combustion of coal and waste rock, noxious liquid leaching, dust and natural radioactive and impacts on the environment of mining field seriously.

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Shrinkage and Strength Properties of Coal Gangue

It is a promising and effective method for waste treatment by using coal gangue to make lightweight aggregate concrete. However, lightweight aggregate concrete with low-density coal gangue ceramsite is prone to cracking during volume shrinkage, which limits its application in the construction industry. In an attempt to resolve the problem of cracking in shrinkage, this study investigated the

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2021-3-15 · Bulk coal gangue deposits seriously affect the mining area environment, and some mishandling of coal gangue may cause spontaneous combustion and explosion, which poses a direct threat to mine safety. The comprehensive utilization of coal gangue can effectively alleviate this problem, and it is of significance to the ecological safety and sustainable development of mine.

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Research of Comprehensive Utilization of Coal Gangue

their total amount can reach 60% ~ 90%. In the course of coal gangue storage, spontaneous combustion will occur, in which volatile and carbonaceous combustion, its inorganic component content will increase. Coal gangue is widespread in the two kaolinite, quartz mineral crystal phase,

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Harm of spontaneous combustion gangue dump explosion

2021-11-29 · Abstract:Spontaneous combustion gangue dump explosion accident happened frequently, it had cause massive casualties and economic losses, which greatly influencing the rapid development of coal enterprises.The paper combine with the exploding instance of

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Coal Gangue Hammer Crusher In Kenya

Buy coal gangue crusher around changshu. Mobile gangue crusher coal gangue crushercoal gangue production linedingli crusher the coal gangue crusher with low energy consumption and high using level will become the main machine in green and environmental friendly development material introduction

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wanfangdata

Preparation and Effect of Coal-Gangue Admixture on High Strength Concrete

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Analysis on Explosion Characteristics of Coal Gangue

In the process of the coal gangue hill explosion, a lot of harmful gases can be released, which seriously pollutes the atmospheric environment and is harmful to people's health; meanwhile, equipments and the surrounding buildings can also be destroyed, which brings huge economic losses and casualties. In addition, social problems caused by coal gangue hills will become a thorny problem for

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How a Roller Crusher Crush Coal Gangue Fote

2021-4-20 · What is coal gangue? Coal gangue Coal gangue is an abandoned rock discharged during coal mining and processing. When mining coal, the rock layers or bottom plates from the roof of the coal seam, as well as the various types of rock excavated and blasted from around the coal seam during the excavation are all called coal gangue.

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It is mainly physical adsorption and spontaneous exothermic reaction. The maximum adsorption capacity of the three kinds of carbon materials was cattle dung carbon (19.64 mg·g-1) > coal gangue carbon (12.06 mg·g-1) > straw carbon (9.16 mg·g-1).

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2021-11-23 · :;;; ABSTRACT The coal resource 1s extremely rich ShanxiProvince coalreserve iS country.Itbrings,,, 3635.34,20210。

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Control system of spontaneous combustion in coal

Sažetak Spontaneous combustion in coal gangue dumps leads to pollution in the environment and damages ecosystem and human health. Mine operators usually fail to take effective measures against spontaneous combustion because of the inaccurate detection of the location of spontaneous

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2021-4-8 · coal gangue mortar,and applying to the sandwich floor of prefabricated steel structure,6 kinds of spontaneous combustion coal gangue mortar one-way slabs were made. And one-way slab plate type design and related performance tests have

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2021-9-14 · The coal gangue produced in Chengzhuang coal mine has mixed pile phenomenon, which occupies a lot of land, destroys the environment and results in the spontaneous combustion disaster of gangue mountain.

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-- CAS

Estimate of sulfur, arsenic, mercury, fluorine emissions due to spontaneous combustion of coal gangue An important part of Chinese emission inventories

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Bolomey

Bolomey,,,, , 123000 Correction of Bolomey Formula for Spontaneous Combustion Gangue Coarse Aggregate Concrete

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Distribution of Polycyclic Aromatic Hydrocarbons in

carcinogenicity, coal, combustion, high performance liquid chromatography, polycyclic aromatic hydrocarbons, soil, temperature, China Abstract Five coal gangue samples from the Duerping Coal Mine in Shanxi, China, subjected to low-temperature combustion and their emitted gas samples were collected in situ at the combustion temperatures of 23

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2021-6-20 · Key words mining area, ecological disturbance, ground deformation and subsidence, underground mine fire, spontaneous combustion of coal gangue, monitor P227 . [J]., 2021, 46(10

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2021-1-7 · Detection and Control of Spontaneous Combustion AreaofXujialing Gangue hill in Wangtaipu Coal Mine Wang Qiang Wangtaipu Coal Mine,Shanxi Jincheng Anthracite Mining Group Co., Ltd.,Jincheng 048000, China

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.[J].,2021,15(2)179. 10 Zhou Mei, Li Gaonian, Zhang Qian, et al. Study on application of spontaneous combustion coal gangue

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coal waste properties ME Mining Machinery

Coal gangue is a residual abandoned coal, varying in color from gray to gray-brown and brown-black. After spontaneous combustion or thermal activation, the ash residue of coal gangue changes color to grey-white, yellow-white or red, depending on the iron oxide content.

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Open Access Library

2021-12-30 · Study on activation properties of spontaneous combustion coal gangue [J]. Journal of Building Materials (), 2021, 16 (3) 497-502 [32] Wang Jian (), Xing Liyan (), Ji Hui (), Li Yan'ai (). Research on concrete blinded with

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Estimate of sulfur, arsenic, mercury, fluorine emissions

A rough estimate of the annual amount of sulfur, arsenic, mercury and fluoride emission from spontaneous combustion of coal gangue in China was determined. The weighted mean concentrations of S, As, Hg, and F in coal gangue are 1.01%, 7.98, 0.18, and 365.54 mg/kg, respectively.

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Experimental Study on the Characteristics of Activated

2021-5-15 · energies Article Experimental Study on the Characteristics of Activated Coal Gangue and Coal Gangue-Based Geopolymer Weiqing Zhang 1,2, Chaowei Dong 1,2, Peng Huang 2,3,*, Qiang Sun 2,3, Meng Li 1,2 and Jun Chai 1,2 1 State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Xuzhou 221116, China; [email protected] (W.Z.);

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sourcedb.whlib.cas.cn

Fluorine Emission from Spontaneous combustion of Coal Gangue Heaps. The 3rd International conference on combustion Incineration / Pyrolysis and emission control (3rd i-CIPEC), October 21-23, 2021, Hangzhou, China

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CHINACAJ

[4] Wang G, Liu Q, Yan G, et al. Control system of spontaneous combustion in coal gangue dumpsa case study at Yuquan coal mine in China [J]. Tehnicki vjesnik/Technical Gazette, 2021, 24(1), 291

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