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为保证通风系统的安全稳定,通过对现有自动风门在井下运行情况的深入研究,设计了基于PLC的ZMK-127型控制器和受力均衡的门体结构.该风门以井下压气作为动力源,采用可调导轨技术设计门框结构,根据通风负压与门体自重的力学结构原理设计其滑轮系统,同时具有防夹功能.风门控制器为隔爆兼本安型,目前已通过煤安认证和防爆检验.通过在龙东煤矿的应用,证实该自动风门运行可靠、开关灵敏、漏风小,在反风演习中起到了良好的远程监控功能.
In order to ensure the safety and stability of the ventilation system, a ZMK-127 controller based on PLC and a pressure-equalized door structure are designed by studying the operation of the existing automatic damper in the well. The downhole compressor uses downhole pressure as the power source , The use of adjustable guide rail design door frame structure, according to the principle of ventilation negative pressure and the weight of the mechanical structure of the door body design of its pulley system, with anti-clip function. Flameproof controller and intrinsically safe throttle controller, has passed the coal safety certification And explosion-proof test.By the application in Longdong Coal Mine, it is proved that the automatic air door is reliable, the switch is sensitive and the air leakage is small, which has played a good remote monitoring function in the anti-wind exercise.