多层隔热下工作面进风巷围岩传热特性
TD727; 深部矿井热害问题日益凸显,严重威胁作业人员生命健康,进一步影响矿井生产效益.本文通过围岩钻孔实验方法,研究了门克庆煤矿 2102工作面、3100工作面、3106工作面及3107工作面进风巷围岩温度随径向深度变化规律;基于ANSYS软件,对膨胀玻化微珠水泥隔热材料与空气夹层协同隔热效果进行研究.研究结果表明:围岩温度与径向深度之间的关系符合ExpAssoc模型,相关系数R2 为 0.991 06;膨胀玻化微珠水泥隔热材料与空气夹层厚度均为 3 cm、6 cm、9 cm、12 cm、15 cm、18 cm时,材料-空气协同隔热顺序与空气-材料协同隔热顺序相比,原巷道壁面温度更高,调热...
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| Published in | 中国矿业 Vol. 33; no. 5; pp. 143 - 151 |
|---|---|
| Main Authors | , , |
| Format | Magazine Article |
| Language | Chinese |
| Published |
安徽理工大学安全科学与工程学院,安徽淮南 232001
01.05.2024
安徽理工大学煤炭安全精准开采国家地方联合工程研究中心,安徽淮南 232001 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 1004-4051 |
| DOI | 10.12075/j.issn.1004-4051.20230315 |
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| Abstract | TD727; 深部矿井热害问题日益凸显,严重威胁作业人员生命健康,进一步影响矿井生产效益.本文通过围岩钻孔实验方法,研究了门克庆煤矿 2102工作面、3100工作面、3106工作面及3107工作面进风巷围岩温度随径向深度变化规律;基于ANSYS软件,对膨胀玻化微珠水泥隔热材料与空气夹层协同隔热效果进行研究.研究结果表明:围岩温度与径向深度之间的关系符合ExpAssoc模型,相关系数R2 为 0.991 06;膨胀玻化微珠水泥隔热材料与空气夹层厚度均为 3 cm、6 cm、9 cm、12 cm、15 cm、18 cm时,材料-空气协同隔热顺序与空气-材料协同隔热顺序相比,原巷道壁面温度更高,调热圈半径更小,隔热效果更好;材料-空气协同隔热时,空气夹层厚度在 12 cm内对隔热效果影响更大,材料层厚度在 6～18 cm内对隔热效果影响更大;对流换热系数与隔热层厚度呈反比,空气夹层厚度在 12 cm内其变化幅度大,而受材料层厚度影响较小.本文研究结果可为矿井多层隔热降温提供参考. |
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| AbstractList | TD727; 深部矿井热害问题日益凸显,严重威胁作业人员生命健康,进一步影响矿井生产效益.本文通过围岩钻孔实验方法,研究了门克庆煤矿 2102工作面、3100工作面、3106工作面及3107工作面进风巷围岩温度随径向深度变化规律;基于ANSYS软件,对膨胀玻化微珠水泥隔热材料与空气夹层协同隔热效果进行研究.研究结果表明:围岩温度与径向深度之间的关系符合ExpAssoc模型,相关系数R2 为 0.991 06;膨胀玻化微珠水泥隔热材料与空气夹层厚度均为 3 cm、6 cm、9 cm、12 cm、15 cm、18 cm时,材料-空气协同隔热顺序与空气-材料协同隔热顺序相比,原巷道壁面温度更高,调热圈半径更小,隔热效果更好;材料-空气协同隔热时,空气夹层厚度在 12 cm内对隔热效果影响更大,材料层厚度在 6～18 cm内对隔热效果影响更大;对流换热系数与隔热层厚度呈反比,空气夹层厚度在 12 cm内其变化幅度大,而受材料层厚度影响较小.本文研究结果可为矿井多层隔热降温提供参考. |
| Abstract_FL | Heat hazard in deep mine is increasingly prominent,which seriously threatens the life and health of operators and further affects the production efficiency of mine.Variation rule of surrounding rock temperature with radial depth in air inlet laneway of 2102 working face,3100 working face,3106 working face and 3107 working face in Menkeqing Coal Mine is measured by experimental method of drilling in surrounding rock;based on ANSYS software,the cooperative heat insulation effect of expansion vitrified microbeads cement insulation material and air sandwich is studied.The results show that the relationship between surrounding rock temperature and radial depth conforms to ExpAssoc model and the correlation coefficient R2 is 0.991 06.When the thickness of expansion vitrefied microbeads cement heat insulation material and air interlayers are 3 cm,6 cm,9 cm,12 cm,15 cm and 18 cm,the material-air collaborative heat insulation sequence is higher than that of air-material collaborative heat insulation sequence,the original laneway wall temperature is higher,the heat control circle radius is smaller,and the heat insulation effect is better.In the case of material-air collaborative heat insulation,the thickness of air layer within 12 cm has a greater effect on the heat insulation effect,and the thickness of material layer within 6-18 cm has a greater effect on the heat insulation effect.The convective heat transfer coefficient is inversely proportional to the thickness of the heat insulation layer.The thickness of the air layer varies greatly within 12 cm,but is less affected by the thickness of the material layer.The research results can provide reference for multi-layer heat insulation and cooling in mine. |
| Author | 邱进伟 邹云 吕逸飞 |
| AuthorAffiliation | 安徽理工大学煤炭安全精准开采国家地方联合工程研究中心,安徽淮南 232001;安徽理工大学安全科学与工程学院,安徽淮南 232001 |
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| Author_FL | QIU Jinwei LYU Yifei ZOU Yun |
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| Keywords | drilling of surrounding rock convective heat transfer collaborative heat insulation 围岩温度场 对流换热 heat hazard in mine temperature field of surrounding rock 协同隔热 围岩钻孔 矿井热害 |
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| Snippet | TD727; 深部矿井热害问题日益凸显,严重威胁作业人员生命健康,进一步影响矿井生产效益.本文通过围岩钻孔实验方法,研究了门克庆煤矿 2102工作面、3100工作面、3106工作面... |
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| Title | 多层隔热下工作面进风巷围岩传热特性 |
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