Active explosion barrier performance against methane and coal dust explosions
Preventing the propagation of methane or coal dust explosions through the use of active explosion-suppression systems remains one of the most underutilised explosion controls in underground coal mines. As part of the effort to develop better technologies to safeguard mines, the use of active barrier...
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| Published in: | International journal of coal science & technology Vol. 2; no. 4; pp. 261 - 268 |
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| Main Author: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
Beijing
China Coal Society
01.12.2015
Springer Nature B.V |
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| ISSN: | 2095-8293, 2198-7823 |
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| Abstract | Preventing the propagation of methane or coal dust explosions through the use of active explosion-suppression systems remains one of the most underutilised explosion controls in underground coal mines. As part of the effort to develop better technologies to safeguard mines, the use of active barrier systems was investigated at Kloppersbos in South Africa. The system is designed to meet the requirements of the European Standard （EN 14591-4 2007） as well as the Mine Safety Standardisation in the Ministry of Coal Industry, Coal Industrial 1 Standard of the Peoples Republic of China （MT 694-1997）. From the tests conducted, it can be concluded that the ExploSpot System was successful in stopping flame propagation for both methane and methane and coal dust hybrid explosions when ammonium phosphate powder was used as the suppression material. The use of this barrier will provide coal mine management with an additional explosion control close to the point of ignition and may find application within longwall faces further protecting mines against the risk of an explosion propagating throughout a mine. |
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| AbstractList | Preventing the propagation of methane or coal dust explosions through the use of active explosion-suppression systems remains one of the most underutilised explosion controls in underground coal mines. As part of the effort to develop better technologies to safeguard mines, the use of active barrier systems was investigated at Kloppersbos in South Africa. The system is designed to meet the requirements of the European Standard (EN 14591-4 2007) as well as the Mine Safety Standardisation in the Ministry of Coal Industry, Coal Industrial l Standard of the Peoples Republic of China (MT 694-1997). From the tests conducted, it can be concluded that the ExploSpot System was successful in stopping flame propagation for both methane and methane and coal dust hybrid explosions when ammonium phosphate powder was used as the suppression material. The use of this barrier will provide coal mine management with an additional explosion control close to the point of ignition and may find application within longwall faces further protecting mines against the risk of an explosion propagating throughout a mine. Preventing the propagation of methane or coal dust explosions through the use of active explosion-suppression systems remains one of the most underutilised explosion controls in underground coal mines. As part of the effort to develop better technologies to safeguard mines, the use of active barrier systems was investigated at Kloppersbos in South Africa. The system is designed to meet the requirements of the European Standard （EN 14591-4 2007） as well as the Mine Safety Standardisation in the Ministry of Coal Industry, Coal Industrial 1 Standard of the Peoples Republic of China （MT 694-1997）. From the tests conducted, it can be concluded that the ExploSpot System was successful in stopping flame propagation for both methane and methane and coal dust hybrid explosions when ammonium phosphate powder was used as the suppression material. The use of this barrier will provide coal mine management with an additional explosion control close to the point of ignition and may find application within longwall faces further protecting mines against the risk of an explosion propagating throughout a mine. Preventing the propagation of methane or coal dust explosions through the use of active explosion-suppression systems remains one of the most underutilised explosion controls in underground coal mines. As part of the effort to develop better technologies to safeguard mines, the use of active barrier systems was investigated at Kloppersbos in South Africa. The system is designed to meet the requirements of the European Standard (EN 14591-4 2007 ) as well as the Mine Safety Standardisation in the Ministry of Coal Industry, Coal Industrial l Standard of the Peoples Republic of China (MT 694- 1997 ). From the tests conducted, it can be concluded that the ExploSpot System was successful in stopping flame propagation for both methane and methane and coal dust hybrid explosions when ammonium phosphate powder was used as the suppression material. The use of this barrier will provide coal mine management with an additional explosion control close to the point of ignition and may find application within longwall faces further protecting mines against the risk of an explosion propagating throughout a mine. |
| Author | J. J. L. du Plessis |
| AuthorAffiliation | Department of Mining Engineering, University of Pretoria,Pretoria 0028, South Africa |
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| ContentType | Journal Article |
| Copyright | The Author(s) 2015 The Author(s) 2015. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. |
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| Notes | Coal, Methane ,Explosions , Active barriers 10-1252/TD Preventing the propagation of methane or coal dust explosions through the use of active explosion-suppression systems remains one of the most underutilised explosion controls in underground coal mines. As part of the effort to develop better technologies to safeguard mines, the use of active barrier systems was investigated at Kloppersbos in South Africa. The system is designed to meet the requirements of the European Standard （EN 14591-4 2007） as well as the Mine Safety Standardisation in the Ministry of Coal Industry, Coal Industrial 1 Standard of the Peoples Republic of China （MT 694-1997）. From the tests conducted, it can be concluded that the ExploSpot System was successful in stopping flame propagation for both methane and methane and coal dust hybrid explosions when ammonium phosphate powder was used as the suppression material. The use of this barrier will provide coal mine management with an additional explosion control close to the point of ignition and may find application within longwall faces further protecting mines against the risk of an explosion propagating throughout a mine. ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 14 |
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| PublicationTitle | International journal of coal science & technology |
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| Publisher | China Coal Society Springer Nature B.V |
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| References | du Plessis JJL, Vassard PS (1995) Assessment of dispersed barriers. Preliminary Research Report, CSIR Division of Mining Technology Zou DH (2001) Passive and Triggered explosion barriers in underground coal mines—a literature review of recent research. Dept. Mining and Metallurgical Engineering Dal Tech, Dalhousie University Halifax, Nova Scotia KnoetzeTPKesslerIIMBrandtMPThe explosibility of South African coals as determined in the 40–litre explosion vesselJ SAIMM1993938203206 du Plessis JJL (2001) Development and evaluation of the bagged stone dust barrier. Docor’s Thesis: University of Witwatersrand Cook P (1993) The inhibition of coal-dust explosions with stone dust in a large-scale explosion gallery. Report ENER 93-001, CSIR Division of Energy Technology du Plessis JJL, Späth H (2002) Triggered barrier system performance in a 200-m test gallery at Kloppersbos. Paper presented at the 9th North American Ventilation Congress, Kingston, Ontario, Canada, 2002 MT 694-1997. Coal Industrial Standard. People’s Republic of China International Standard, IEC 60079-11, 1999: Intrinsic Safety, IEC 60079-0, 2005: General Requirements, IEC 60079-0, 2004: Hazardous Locations and IEC 60079-1, 2004: Flameproof enclosures ‘d’ Cashdollar KL, Hertzberg M (1989) Laboratory study of rock dust inerting requirements: effect of coal volatility, particle size and methane addition. Proceedings of the 23rd International Conference of Safety in Mines Research Institutes, Washington DC: 965–974 European Standard EN 14591-4 (2007) Explosion Prevention and Protection in Underground Mines Protective Systems Part 4: Automatic Extinguishing Systems for Road Headers Smith GL, du Plessis JJL (1998) Control strategies for coal dust and methane explosions in underground coal mines: Current South African research and development initiatives. Mining in Africa’98 Conference du Plessis JJL, Brandt MP, Vassard PS (1995) Assessment of explosion barriers. SIMRAC Research Report, COL 010 Kruger RA, du Plessis JJL, Vassard PS (1996) The potential of fly ash for the control of underground coal dust explosions. Contract Report for Ash Resources (Pty) Ltd, CSIR Division of Mining Technology du Plessis JJL, Späth H (2014) Active barrier performance preventing methane explosion propagation. 14th Coal Operators’ Conference: 350–359 TP Knoetze (97_CR10) 1993; 93 97_CR11 97_CR13 97_CR14 97_CR15 97_CR7 97_CR6 97_CR5 97_CR4 97_CR3 97_CR2 97_CR1 97_CR9 97_CR8 |
| References_xml | – reference: MT 694-1997. Coal Industrial Standard. People’s Republic of China – reference: du Plessis JJL, Späth H (2014) Active barrier performance preventing methane explosion propagation. 14th Coal Operators’ Conference: 350–359 – reference: Zou DH (2001) Passive and Triggered explosion barriers in underground coal mines—a literature review of recent research. Dept. Mining and Metallurgical Engineering Dal Tech, Dalhousie University Halifax, Nova Scotia – reference: Cashdollar KL, Hertzberg M (1989) Laboratory study of rock dust inerting requirements: effect of coal volatility, particle size and methane addition. Proceedings of the 23rd International Conference of Safety in Mines Research Institutes, Washington DC: 965–974 – reference: Cook P (1993) The inhibition of coal-dust explosions with stone dust in a large-scale explosion gallery. Report ENER 93-001, CSIR Division of Energy Technology – reference: Kruger RA, du Plessis JJL, Vassard PS (1996) The potential of fly ash for the control of underground coal dust explosions. Contract Report for Ash Resources (Pty) Ltd, CSIR Division of Mining Technology – reference: International Standard, IEC 60079-11, 1999: Intrinsic Safety, IEC 60079-0, 2005: General Requirements, IEC 60079-0, 2004: Hazardous Locations and IEC 60079-1, 2004: Flameproof enclosures ‘d’ – reference: du Plessis JJL (2001) Development and evaluation of the bagged stone dust barrier. Docor’s Thesis: University of Witwatersrand – reference: Smith GL, du Plessis JJL (1998) Control strategies for coal dust and methane explosions in underground coal mines: Current South African research and development initiatives. Mining in Africa’98 Conference – reference: du Plessis JJL, Späth H (2002) Triggered barrier system performance in a 200-m test gallery at Kloppersbos. Paper presented at the 9th North American Ventilation Congress, Kingston, Ontario, Canada, 2002 – reference: European Standard EN 14591-4 (2007) Explosion Prevention and Protection in Underground Mines Protective Systems Part 4: Automatic Extinguishing Systems for Road Headers – reference: KnoetzeTPKesslerIIMBrandtMPThe explosibility of South African coals as determined in the 40–litre explosion vesselJ SAIMM1993938203206 – reference: du Plessis JJL, Vassard PS (1995) Assessment of dispersed barriers. Preliminary Research Report, CSIR Division of Mining Technology – reference: du Plessis JJL, Brandt MP, Vassard PS (1995) Assessment of explosion barriers. SIMRAC Research Report, COL 010 – ident: 97_CR6 – ident: 97_CR1 – ident: 97_CR3 – ident: 97_CR9 – ident: 97_CR15 – ident: 97_CR8 – volume: 93 start-page: 203 issue: 8 year: 1993 ident: 97_CR10 publication-title: J SAIMM – ident: 97_CR2 – ident: 97_CR7 – ident: 97_CR11 – ident: 97_CR14 – ident: 97_CR4 – ident: 97_CR5 – ident: 97_CR13 |
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| SubjectTerms | Ammonium Coal industry Coal mines Coal mining Dust Energy Explosions Fossil Fuels (incl. Carbon Capture) Geotechnical Engineering & Applied Earth Sciences Methane Mineral Resources Mines Mining accidents & safety Research Article 中华人民共和国 抑爆系统 欧洲标准 煤尘爆炸 煤矿井下 甲烷 粉尘爆炸 阻隔性能 |
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| Title | Active explosion barrier performance against methane and coal dust explosions |
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