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矿山经常采用不设风墙工作的坑内辅扇来增大个别采区的风量。不设风墙的辅扇是靠其出口的动压来通风的。动压不很大,因此,不设风墙的辅扇在小阻力的网路上工作才能有利。观察表明,在个别情况下,用不设风墙的扇风机通风比通过风墙工作的扇风机更为有利。关于用这种装置通风的问题到目前为止还很少研究,而在实际应用时是不加计算与选择的。因此,我们研究的目的在于拟定坑内采区辅扇的计算与选择方法,确定其工作的有利范围的参数和提高这种通风的效率。根据这些拟
Frequently, mines use pit-assisted fans without wind walls to increase the air volume in individual mining areas. Auxiliary fans without wind walls are ventilated by the dynamic pressure of their exit. Dynamic pressure is not large, therefore, does not have the auxiliary wall fan in the small resistance of the network to work in order to benefit. Observations have shown that in individual cases it is more advantageous to ventilate with a fanless fan than a fan fan that works through a windscreen. The problem of ventilation with this type of device has so far been poorly studied and not calculated and chosen in practice. Therefore, the purpose of our study is to develop a method for calculating and selecting auxiliary fans in a pit, to determine the parameters of the favorable range of operation and to improve the efficiency of such ventilation. According to these plans