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增加矿井总风量的主要方法有降低矿井的阻力、更换能力大的扇风机以及在扇风机与电动机能力有富裕的情况下提高扇风机的转速等。用提高扇风机转速的方法来增加矿井总风量的方法,对扇风机、电动机的能力、风机的极限转速、扇风机叶片的圆周速度、三角皮带的能力及选用的型号都应有较详细的计算。否则有某一方面考虑不周就会带来费工费时甚至导致该项工作的失败。特别是一些老型号的离心式扇风机由于技术资料不全,更应该引起我们充分地注意。下面就上述所提到的问题一一加以叙述。
The main methods to increase the total air volume of the mine are to reduce the resistance of the mine shaft, to replace the fan with large capacity, and to increase the fan speed when there is ample fan and motor capacity. The method to increase the total air volume of the mine by means of increasing the speed of the fan should be calculated in more detail with respect to the capacity of the fan and motor, the limit speed of the fan, the peripheral speed of the fan blades, the capacity of the V-belt and the selected model . Otherwise, on the one hand, if you think about the problems, you will have to pay a lot of work and even lead to the failure of the work. In particular, some of the older models of centrifugal fan due to incomplete technical information, it should cause us sufficient attention. The following is a brief account of the above-mentioned issues.