长距离采煤工作面高压喷雾降温实验研究及应用OA北大核心CSTPCD
Experimental research and application of high pressure spray cooling in long distance coal mining face
针对园子沟矿井 1012102 采煤工作面高温热害问题,采用喷雾降温实验确定最佳喷雾压力和喷嘴雾化参数,数值模拟分析不同喷雾温度和喷雾间距对降温效果的影响,并采用线性回归方法分析了采用喷雾前后人体的舒适度.结果表明:当综采工作面中喷雾系统采用组间距10 m,水温为 286 K,压力 6 MPa的参数时,单组峰值温度与常规通风方式的温差达到了 1.3℃.在现场应用后,工作面人行道侧大部分区域的温度低于 26℃,最高气温降至 27℃以下,最低温度低至 24.7℃,有效实现了区域降温.
For the problem of high temperature heat damage at 1012102 working face in Yuanzigou Mine,the best spray pressure and nozzle atomization parameters are determined by using the method of spray cooling experiment.The numerical simulation meth-od is used to simulate and analyze the influence of different spray temperature and spray spacing conditions on the cooling effect,and the comfort of human body before and after spray is used to analyze by the linear regression method.The results show that:when the spraying system in the synthesized mining face adopts the group spacing of 10 m,the water temperature is 286 K,and the pres-sure is 6 MPa,the single group peak temperature reaches 1.3℃compared with the conventional ventilation method.After the applic-ation in the field,the temperature of most areas on the sidewalk side of the working face was lower than 26℃,the maximum temper-ature dropped to below 27℃,the minimum temperature was as low as 24.7℃,which effectively realized the regional cool.
季朝阳;陈修杰;冯千;掌奕然;苗德俊
陕西麟北煤业开发有限责任公司 园子沟矿,陕西 宝鸡 721000山东科技大学 安全与环境工程学院,山东 青岛 266590||山东科技大学 省部共建矿山岩层智能控制与绿色开采国家重点实验室,山东 青岛 266590
矿山工程
高温采煤工作面喷雾降温数值模拟喷雾系统热害治理
high-temperature coal mining facespray coolingnumerical simulationspraying systemheat damage management
《煤矿安全》 2024 (010)
72-81 / 10
山东省自然科学基金资助项目(ZR2020QE137)
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