Study on controlling factors and developing a quantitative assessment model for spontaneous combustion hazard of coal gangue
Developing a quantitative hazard assessment model for spontaneous coal gangue combustion is imperative to ensuring the safety of coal mining operations. In this study, eight types of coal gangue from different coalfields were used to determine the controlling factors for spontaneous combustion. A va...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2024-02-01
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| Series: | Case Studies in Thermal Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X24000704 |
| _version_ | 1797311537526865920 |
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| author | Baibin Han Yulong Zhang Zhengfan Zou Junfeng Wang Chunshan Zhou |
| author_facet | Baibin Han Yulong Zhang Zhengfan Zou Junfeng Wang Chunshan Zhou |
| author_sort | Baibin Han |
| collection | DOAJ |
| description | Developing a quantitative hazard assessment model for spontaneous coal gangue combustion is imperative to ensuring the safety of coal mining operations. In this study, eight types of coal gangue from different coalfields were used to determine the controlling factors for spontaneous combustion. A variety of physical and chemical characterization methods were employed to investigate the physical and chemical characteristics of the samples. Based on the experimental results, six key parameters were identified, namely the aliphatic C–H components, pyrite sulfur content, physical oxygen absorption capacity, ash content, ignition point temperature, and activation energy for thermal decomposition. The results show that the spontaneous combustion hazard of coal gangue is positively correlated with the first three of these and is negatively correlated with the rest. Using the entropy-weight method combined with the analytic hierarchy process, appropriate weighting factors for each parameter were obtained and used to establish a quantitative assessment model for the spontaneous combustion hazard of coal gangue. This model is expected to enhance the current industrial best practices for the prevention and control of spontaneous coal gangue combustion. |
| first_indexed | 2024-03-08T02:01:11Z |
| format | Article |
| id | doaj.art-c40af5c68e444d29846afd8a2bd55100 |
| institution | Directory Open Access Journal |
| issn | 2214-157X |
| language | English |
| last_indexed | 2024-03-08T02:01:11Z |
| publishDate | 2024-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj.art-c40af5c68e444d29846afd8a2bd551002024-02-14T05:17:05ZengElsevierCase Studies in Thermal Engineering2214-157X2024-02-0154104039Study on controlling factors and developing a quantitative assessment model for spontaneous combustion hazard of coal gangueBaibin Han0Yulong Zhang1Zhengfan Zou2Junfeng Wang3Chunshan Zhou4College of Safety and Emergency Management Engineering, Taiyuan University of Technology, Taiyuan, 030024, ChinaCollege of Safety and Emergency Management Engineering, Taiyuan University of Technology, Taiyuan, 030024, China; China Key Laboratory of Coal Science and Technology, Taiyuan University of Technology, Ministry of Education and Shanxi Province, Taiyuan, 030024, China; Corresponding author. College of Safety and Emergency Management Engineering, Taiyuan University of Technology, Taiyuan, 030024, China.College of Safety and Emergency Management Engineering, Taiyuan University of Technology, Taiyuan, 030024, ChinaCollege of Safety and Emergency Management Engineering, Taiyuan University of Technology, Taiyuan, 030024, ChinaCollege of Safety and Emergency Management Engineering, Taiyuan University of Technology, Taiyuan, 030024, ChinaDeveloping a quantitative hazard assessment model for spontaneous coal gangue combustion is imperative to ensuring the safety of coal mining operations. In this study, eight types of coal gangue from different coalfields were used to determine the controlling factors for spontaneous combustion. A variety of physical and chemical characterization methods were employed to investigate the physical and chemical characteristics of the samples. Based on the experimental results, six key parameters were identified, namely the aliphatic C–H components, pyrite sulfur content, physical oxygen absorption capacity, ash content, ignition point temperature, and activation energy for thermal decomposition. The results show that the spontaneous combustion hazard of coal gangue is positively correlated with the first three of these and is negatively correlated with the rest. Using the entropy-weight method combined with the analytic hierarchy process, appropriate weighting factors for each parameter were obtained and used to establish a quantitative assessment model for the spontaneous combustion hazard of coal gangue. This model is expected to enhance the current industrial best practices for the prevention and control of spontaneous coal gangue combustion.http://www.sciencedirect.com/science/article/pii/S2214157X24000704Coal gangueSpontaneous combustionControlling factorsWeighting factorsRisk levelAssessment model |
| spellingShingle | Baibin Han Yulong Zhang Zhengfan Zou Junfeng Wang Chunshan Zhou Study on controlling factors and developing a quantitative assessment model for spontaneous combustion hazard of coal gangue Case Studies in Thermal Engineering Coal gangue Spontaneous combustion Controlling factors Weighting factors Risk level Assessment model |
| title | Study on controlling factors and developing a quantitative assessment model for spontaneous combustion hazard of coal gangue |
| title_full | Study on controlling factors and developing a quantitative assessment model for spontaneous combustion hazard of coal gangue |
| title_fullStr | Study on controlling factors and developing a quantitative assessment model for spontaneous combustion hazard of coal gangue |
| title_full_unstemmed | Study on controlling factors and developing a quantitative assessment model for spontaneous combustion hazard of coal gangue |
| title_short | Study on controlling factors and developing a quantitative assessment model for spontaneous combustion hazard of coal gangue |
| title_sort | study on controlling factors and developing a quantitative assessment model for spontaneous combustion hazard of coal gangue |
| topic | Coal gangue Spontaneous combustion Controlling factors Weighting factors Risk level Assessment model |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X24000704 |
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