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为了掌握矿井掘进工作面降温参数变化规律,更好的指导现场实施与应用,以存在高温热害现象的长距离掘进巷道(掘进巷道长度1 000 m)为研究对象,现场实际测定矿井降温系统运行后部分测点风流温度,拟合分析得到了部分参数之间较准确的定量关系。拟合结果表明:赵楼煤矿掘进工作面迎头温度与风筒出口风流温度(干、湿球温度)近似呈线性关系;与空冷器后处理风流温度(干球温度,相对湿度近似为100%)在一定范围内近似呈二次抛物线关系。此外,掘进工作面附近干湿球温度差值较大,最大可达5～7℃。风流在回头过程中热湿交换严重,很容易形成放大的回头增热、增湿现象。
In order to grasp the variation rules of the cooling parameters of mine tunneling face and better guide the implementation and application of the site, taking the long-distance heading (1 000 m long) with the phenomenon of high temperature and thermal damage as the research object, the actual operation of the cooling system in the mine After part of the measuring point of the wind temperature, the fitting analysis obtained some of the more accurate quantitative relationship between parameters. The fitting results show that there is a linear relationship between the head-on temperature and the air temperature (dry and wet bulb temperature) at the exit face of the ventilation shaft of Zhaolou Coal Mine. The air temperature (dry-bulb temperature and relative humidity is approximately 100% In a certain range of approximate quadratic parabolic relationship. In addition, the difference between the wetting and drying bulb near the heading face is larger, up to 5 ~ 7 ℃. Merry in the process of returning heat and humidity exchange serious, it is easy to form a magnified back to heat, humidification phenomenon.