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一、问题的提出矿井通风的目的在于供给井下人员以足够的氧气,排出矿井内的有毒有害气体、粉尘以及改善高温作业环境条件.矿井通风对保障矿工生命安全、身体健康、避免发生事故和高速发展煤炭工业是极为重要的.煤矿井下掘进工作面的主要通风方法有三种:矿井总负压通风、局扇通风、水力或压气引射器通风.当前,我国煤矿广泛采用的是局扇通风.这种通风方法是由局扇和导风设施(如风筒、风幛等)组成一体,将新鲜空气送入掘进工作面,同时将污浊空气排出.
First, the problem raised The purpose of mine ventilation is to supply underground personnel with enough oxygen to discharge toxic and harmful gases in the mine, dust and improve high temperature operating environmental conditions.Mining ventilation to protect the life and safety of miners, good health and avoid accidents and high speed Development of coal industry is extremely important.There are three main ventilation methods for coal mining face: mine total negative pressure ventilation, local fan ventilation, hydraulic or pressure ejector ventilation.At present, coal fan is widely used in the local sector ventilation. This method of ventilation is composed of bureau fans and air guiding facilities (such as ducts, winds and the like) that feed fresh air into the tunneling surface and discharge the dirty air.