Underground coal mine ventilation system has a mounts of disadvantages,major factors including nonlinear regular and management difficulties.In order to ensure that the underground toxic and harmful gas does not exceed the limit,and to a-chieve the purpose of reducing the energy consumption of the ventilator,the PLC double closed-loop adjusting system is intro-duced based on the analysis of the principle and characteristics of the traditional downhole ventilation system.The wind pres-sure of the fan air volume can be effectively controlled according to the concentration of toxic and harmful gases;besides dilu-ting the toxic and harmful gases,the purpose of energy saving and emission reduction can also be achieved.According to the actual tests,the response speed of the PLC double closed-loop system ventilator is significantly higher than that of the tradi-tional fan,which can effectively reduce the phenomenon of toxic and harmful gas accumulation in the underground.
关键词
安全生产/矿井通风/监测监控/双闭环调节通风机
Key words
safe production/mine ventilation/monitoring and controlling/double closed-loop adjusting ventilator
维普
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