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针对目前煤矿运煤输送带处水幕自动防尘控制系统存在的缺点进行了研究和分析,设计了一种基于单片机的井下水幕自动防尘控制系统。该系统主要采用AT89S52单片机为控制核心,实现了对出水电磁阀门的自动控制,在运煤输送带运行过程中即可降水进行防尘,并且可以在输送带停止运行后延时3 min降尘,再由粉尘传感器检测现场粉尘浓度,达到国家标准时再关闭电动阀门。在所运行的运煤输送带人行侧,通过连接手动截止阀、单向阀以及三通,对水幕进行控制,以达到扩大防尘降尘范围的目的,加强了工作面和输送带巷的防尘降尘效果。
Aiming at the shortcomings of the automatic dust control system of the water curtain at coal conveying belt in coal mine, a control system of automatic dust control for downhole water curtain based on single chip was designed. The system mainly uses the AT89S52 microcontroller as the control core to realize the automatic control of the outlet solenoid valve, to prevent dust during the operation of the coal conveyor belt, and to delay dusting after the conveyor belt is stopped for 3 min The dust sensor detects the concentration of dust on site and reaches the national standard to close the electric valve. On the pedestrian side of the conveyor belt for coal transportation, the water curtain is controlled by connecting manual shut-off valves, one-way valves and tees, so as to achieve the purpose of expanding the range of dust prevention and dust fall and strengthening the protection of the work surface and the conveyor lane Dust dust effect.