Research on optimization control of main ventilator switching technology with continuous ventilation in coal mine
In response to the problems of low intelligence and complex switching process of main ventilator in coal mine,an in-depth analysis of ventilator stopping and switching was conducted,exploring the optimization control of the switching process of the main ventilator when it was impossible to achieve hot switching of the backup ventilator.At the same time,intelligent control technology was used to upgrade and transform the control equipment to improve the switching process with continuous ventilation,and the switching process and corresponding solutions under optimized control were elaborated in detail.The actual engineering application in Shanxi Tiandi Wangpo Coal Industry Co.,Ltd.showed that the main ventilator had successfully achieved switching process with continuous ventilation and without horizontal air doors and construction modifications,which not only shortened the air flow time by more than 50％,but also effectively eliminated the risk of air flow stoppage caused by backup fan failure.At the same time,the wind speed reduction time during switching ventilator had been significantly improved,and the optimization effect of switching time was significant,effectively improving the operation safety of the coal mine ventilation system.
main ventilationventilator switching with continuous ventilationintelligent controloptimization controlmine ventilation
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