Experimental study of thermophysical properties of coal …

2020-12-5 · The specific heat capacity (C p), thermal conductivity (λ), and thermal diffusion coefficient (D) of coal gangue (CG) are the main factors that affect the self-ignition potential for heat transferring from burning center to the ground surface this paper, the thermophysical properties of CG were investigated by transient plane source method. The correlations and …

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Decarburization | 2016-05-06 | Industrial Heating

2016-5-6 · A Little Deeper[7] As stated, decarburization begins to occur as the rate of carbon at the surface decreases due to its reaction with oxygen as this reaction exceeds the growth rate of scale (iron-oxide) formation. The scale …

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Release characteristics of heavy metals from coal gangue …

2021-7-8 · ENERGY EXPLORATION & EXPLOITATION· Volume 32 · Number 2 · 2014 pp. 413–422 413 Release characteristics of heavy metals from coal gangue under simulation leaching conditions Hongjian Zhang1* and Sailan Ouyang2 1School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou 221008, Jiangsu

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Gasification and activation behaviors of coal gangue with …

2022-4-1 · 1. Introduction. The accumulation of coal gangue (gangue) has wasted lots of land resources [], and the harmful components in gangue will migrate into soil after rain-washed [].Moreover, gangue also encounters a serious spontaneous combustion problem which always resulting in a large amount of harmful gas emission [3,4].Nowdays, the gangue with a high …

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Evaluation of Mechanical Properties and Microscopic …

Alkalinity treatment can be chosen to improve cohesion of coal gangue as a result of polymeric silicon aluminum salt, with high viscosity, was produced by chemical reaction during immersion. Therefore, aqueous solution treatment contributes to engineering properties and presents great potential in both supplement road building materials and ...

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Influence of coal gangue mulching with various …

2021-7-28 · Coal gangue, as a type of solid waste discharged during coal mining and coal washing, occupies a large amount of land resources owing to accumulated gangue, which eventually results in ecological ...

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Thermal decomposition of selected coal gangue

2017-9-20 · TG-DTG-DSC curve (Fig. 2) of illite-type coal gangue (sample 6 selected) reveals that the mass loss and heat absorption effect under 40–120 °C were caused by the discharge of absorbed water.One mass loss step on TG curve and broad and gentle heat absorption valley on DSC curve within 120–400 °C were mainly caused by the loss of free water, interlayer water, …

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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.

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Clean Development Mechanism Evaluation Study – …

2013-8-28 · Clean Development Mechanism Potential Evaluation Study – Chinese Coal-Gangue Brick-making Sector 7 1 Introduction This report has been prepared by Camco, on behalf of the United Nations Industrial Development Organisation (UNIDO). This assignment contributes to Output 1 ''Coal-gangue Brick Sub-sector CDM Potential and

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CONTROL OF DECARBURIZATION OF STEEL

2012-10-10 · Heat Treating side, this Technology could have been applied to applications where preventing Decarburizing was a requirement. Therefore, the purpose of the following discussion is to separate out that part of Carburizing Technology that is applicable to preventing Decarburization in Reheat applications. Fundamentals

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