Risk and mitigation of self-heating and spontaneous combustion in underground coal storage |
| |
Authors: | Juha Sipilä Pertti Auerkari Anna-Mari Heikkilä Risto Tuominen Iris Vela Jyrki Itkonen Mikael Rinne Kalevi Aaltonen |
| |
Institution: | 1. School of Chemical Engineering, Sichuan Univerisity, Chengdu 610065, China;2. BAM Federal institute for Materials Research and Testing by Bundesanstalt für Materialforschung und -prüfung (BAM), Unter den Eichen 87, D-12205 Berlin, Germany;3. Department of Mechanical Engineering, KU Leuven, Celestijnenlaan 300A, B3001 Leuven, Belgium |
| |
Abstract: | While the self-heating and spontaneous combustion of coal is a known challenge at coal mines and storage sites, there are known methods for mitigating this challenge for typical open stockpile storage. However, closing the storage will reduce access for corrective action, and it is then important to manage the storage and its transport system with added attention without unduly adding cost or hindering availability. This paper aims to discuss the risk, prevention and extinguishing of fires in closed coal storage facilities, particularly in light of the experience with the Salmisaari underground rock storage facility in Finland. The observed autoignition events have indicated an array of contributing factors, some of which are unique to underground silo storage facilities. On the other hand, many features of the storage facilities can be compared with other extant closed storage systems. The factors affecting fire risk are described and the associated fault and event trees are outlined for autoignition at underground storage. Drawing upon the experiences with past events of self-heating and spontaneous combustion, recommendations are given on cost-effective preventive, corrective and other mitigating action for minimising fire risk and promoting storage availability. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|