摘要
四、回采工作面下行通风降温机理回采工作面采用下行通风降温的效果已如前所述,到底降温的主要原因何在?还需进一步从理论上做较为深入的探讨.本部分研究时以局部工作面下行通风为例(指生产水平或采区内仅有部分工作面下行,
Through theoretical analysis and field measurements,the effect and mechanism of descensional ventilation on the decrease of face temperature have been studied in this paper.The theoretical findings have been vorified by a large number of date obtained from field meassurements.The whole study has shown that the cooling effect is mainly due to the lower heat emission in the upper gate than that in the lower gate of a working face,and the number is often 1～5℃.
关键词
回采面
通风
下行风
降温
效果
Ascensional Ventilation
Descensional Ventilation
Cooling Effect
