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在煤矿掘进工作中,大多数瓦斯爆炸事故都是因局部通风造成的。由于矿井巷道进尺和风筒阻力的不断加大,伴随着掘进工作的推进瓦斯浓度也会随之增大,因此,瓦斯是否能够及时排放会直接对生产安全造成严重影响,这就需要根据实际的供风和瓦斯排放需求进行通风量的调整,而基于模糊控制的局部通风机系统就是确保正常供风和瓦斯排放的关键。通过简要介绍模糊控制,对局部通风机模糊控制系统的结构及工作原理进行分析,并根据局部通风机的模糊控制进行仿真与分析。
In coal mining work, most of the gas explosion accidents are caused by local ventilation. Due to the continuous improvement of mine tunnel footage and duct resistance, the gas concentration will increase along with the progress of tunneling work. Therefore, whether the gas can be discharged in time will have a serious impact on production safety directly, Wind and gas emission needs to adjust the amount of ventilation, and local control based on the fan system is to ensure that the normal supply of wind and gas emissions key. By brief introduction of fuzzy control, the structure and working principle of local fan fuzzy control system are analyzed and simulated and analyzed according to the fuzzy control of local fan.