煤矿安全2018，Vol.49Issue(4)：30-33,4.DOI:10.13347/j.cnki.mkaq.2018.04.008
液态CO2对高温煤体降温规律实验研究
Experimental Study on Cooling Laws of Liquid CO2 on High Temperature Coal
摘要
Abstract
In order to study the cooling laws of liquid CO2 on the high temperature loose coal, the cooling laws of three coal samples with the same liquid flow rate were studied by the liquid CO2 cooling experiment device. The results show that the smaller the particle size, the better the cooling effect. Moreover, the cooling effect of liquid CO2 on the near and the upper coal body is better than that of the lower coal body, and it is confirmed that there is a certain amount of dry ice under the liquid outlet.关键词
高温煤体/热害/液态CO2/汽化热/降温/自燃/防灭火Key words
high temperature coal/heat damage/liquid CO2/heat of vaporization/cooling/spontaneous combustion/fire control分类
矿业与冶金引用本文复制引用
翟小伟,王庭焱..液态CO2对高温煤体降温规律实验研究[J].煤矿安全,2018,49(4):30-33,4.基金项目
国家自然科学基金资助项目(51404195) （51404195）
2016年安全生产重大事故防治关键技术科技资助项目(shanxi-0008-2016AQ) （shanxi-0008-2016AQ）
