作者：张健、魏建平
页数：215
出版社：中国矿业大学出版社
出版日期：2023
ISBN：9787564646950
电子书格式：pdf/epub/txt
内容简介
Spontaneous combustion of coal is a hazard that is likely to occur during coal mining, storage, transport, and utilisation under favourable circumstances. Shendong coalfield, located in the Inner Mongolian region, is the largest coalfield and the most important energy supplier in China. Due to a variety of geological and operational reasons, spontaneous combustion has occurred in several operations and become a major threat to mining operations and coal reserve recovery in Shendong coal mines. This monograph summarises years’ research outcome of the team, which is presented with several chapters. These chapters include a critical investigation of situation of this hazard in Shendong coal mines, a set of experimental tests to gain deep insights into propensity of Shendong coals to spontaneous combustion, CFD modelling on heating evolution with and without considering air leakage from the mining induced cracks and associated inertisation plans, and a sophisticated ventilation simulation model with a whole network of a coal mine to propose several solutions to reduce pressure differential between longwall face and surface. The book should be in interest of practitioners engaged in coal industry and related research regimes.
目录
1.1 Background
1.2 Problem statement
1.3 Research objectives
1.4 Research framework
2 Fundamental Knowledge of the Hazard
2.1 Fundamentals of coal self-heating and oxidation kinetics
2.2 Numerical solutions to self-heating of coal mass
2.3 Theoretical basis of coal heating
2.4 Experimental methods
2.5 Detection
2.6 Control
3 A critical Investigation of Spontaneous Combustion in Shendong Coal Mines
3.1 Introduction of Shendong coal field
3.2 Spontaneous combustion incidents
3.3 Detailed analysis of characteristic spontaneous combustion problems
3.4 Summary
4 Laboratory Tests of Shendong Coals
4.1 Chapter introduction
4.2 Proximate and ultimate tests
4.3 Ignition temperature test
4.4 Gas evolution test
4.5 Adiabatic heating test
4.6 Differential Scanning Calorimetry (DSC) test
4.7 Summary
5 CFD Modelling of Heating Evolution and Inertisation and Inertisation In
a Shendong Goaf
5.1 Chapter introduction
5.2 A brief information of LW22307 Bulianta colliery
5.3 Geometric model and mesh generation
5.4 Theoretical model
5.5 Modelling setting and boundary conditions
5.6 Base model result and validation
5.7 500 m model
5.8 1,000 m model with air leakage from mining induced cracks
5.9 Summary
6 Application of Ventilation Simulation to Spontaneous Combustion Control
6.1 Chapter Introduction
6.2 Project description
6.3 Development and validation of “Ventsim” model
6.4 Solutions and discussion
6.5 Field demonstration
6.6 Summary
7 Conclusions and Recommendations
7.1 Conclusions
7.2 Recommendations
References
Acknowledgements
Abstract
