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针对运输巷道中难以设置风机机站的难题,依据风流流动的基础理论,建立了单机和多机并联硐室型风机机站的理论模型,应用Matlab进行数值模拟分析,并在多级机站通风系统中开展应用研究.结果表明:多机并联硐室型风机机站完全能够替代辅扇或巷道型风机机站,在难以设置辅扇或风机机站的运输巷道内有效解决工作面供风不足、风流反向、污风循环等风流调控的技术难题,引射风量大于35 m3/s,降低作业面环境温度3℃以上.不仅增强了多级机站通风方式的适应性,减少风机机站的维护量,不影响行人和运输,而且改善作业区的供风质量,提高柴油机运输设备的燃烧效率,强化中段通风网络的排烟排尘效果,有利于保护工人的身体健康和促进矿井的安全生产.
Aiming at the difficulty of setting fan station in transport laneway, the theoretical model of single and multi-machine parallel chamber fan station is established according to the basic theory of flow and the numerical simulation analysis is carried out by using Matlab. System.The results show that the multi-machine parallel chamber-type air blower station can replace the auxiliary fan or tunnel-type air blower station and can effectively solve the problem of insufficient air supply in the roadway where auxiliary fans or blower stations are difficult to be set up , Reverse the wind flow, wind circulation and other air flow control technical problems, the introduction of air volume is greater than 35 m3 / s, reducing the ambient temperature above 3 DEG C. not only enhances the adaptability of multi-station ventilation, reduce fan station Maintenance volume, does not affect pedestrians and transport, but also improve the quality of wind for the work area, improve the combustion efficiency of diesel transport equipment, and strengthen the smoke exhaust dust effect in the ventilation network in the middle section will help protect the health of workers and mine safety produce.