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随着矿井生产的发展,矿井通风的有关参数,如送风的距离、巷道和工作面的瓦斯涌出量等不断变化。由于煤矿机械化程度的提高,这种变化的速率加快了。这种变化必然引起井下各处风量和阻力的变化,它往往使用风地点的风量减少。为保证井下各用风地点所需要的风量,就必需不断地对矿井通风网络的风量进行调节,以保证安全生产。所以,矿井风量调节是通风管理工作的重要内容。由于目前我国煤矿大多通过技术改造,井型不断扩大,因而井下通风网络一般都比较复杂,有些矿井风网中风量控制设施(风门、风窗等)多达数百个,这就使通风网
With the development of mine production, the relevant parameters of mine ventilation, such as the distance of air supply, the gas emission from roadways and work surfaces, are constantly changing. As the mechanization of coal mines increase, the rate of such changes has accelerated. This change will inevitably cause changes in the amount of wind and resistance throughout the underground, it is often the use of wind sites to reduce the amount of wind. In order to ensure the required air volume for each wind site, it is necessary to constantly adjust the air volume of mine ventilation network to ensure safe production. Therefore, mine air volume regulation is an important part of ventilation management. Since most of China’s coal mines have passed the technical transformation and the well type has been expanding constantly, the underground ventilation networks are generally quite complicated. In some coal mine wind tunnels, the amount of wind-control facilities (dampers, windshields, etc.) up to hundreds,