深井自然风压数值模拟及计算模型研究

Numerical Simulation and Computational Modelling of Natural Wind Pressure in Deep Mine

对处于基建期的鑫汇金矿自然风压进行现场测试,获取夏季及冬季自然风压数值。采用fluent软件进行建模,用现场测得的自然风压数据验证模型的可靠性。在此基础上,通过正交模拟实验探究入风温度、热源热量、地温梯度、相对湿度对深井自然风压的影响。极差分析结果表明,各因素对深井自然风压的影响程度为:冬季入风温度>热源热量>地温梯度>相对湿度;夏季热源热量>入风温度>地温梯度>相对湿度。利用SPSS软件对正交实验数据进行拟合,并结合现场实测数据,建立了鑫汇金矿深井自然风压计算模型,为鑫汇金矿深部矿区通风系统的设计和风机选型提供了理论依据。

On-site testing of the natural wind pressure at Xinhui Gold Mine,which is in the infrastructure phase,to obtain summer and winter natural wind pressure values.The natural wind pressure exchange in deep well was numerical simulation by FLUENT software.Through orthogonal simulation experiments,influence of incoming air temperature,heat source heat,geothermal gradient and relative humidity on the natural wind pressure in deep wells was discussed.The influence degree of each factor on the natural wind pressure of deep wells was as follows,in winter,incoming air temperature>heat source heat>geothermal gradient>relative humidity;In summer,heat source heat>incoming air temperature>geothermal gradient>relative humidity.The orthogonal experimental data and the measured data were fitted by SPSS software,and a calculation model of the natural wind pressure in deep wall of Xinhui gold mine was established,which provides reference for the design of the ventilation system and the fan selection in the deep mine area of Xinhui gold mine.