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声控喷雾灭尘装置用于煤矿掘进工作面自动喷雾降尘,是根据《爆炸性环境用防爆电气设备》有关规定而设计的,经煤科院上海分院防爆检验站审查和检验,同意进行工业性试验 (一)原理框图(见图1) 爆破声经讯号接收环节,转变为微弱的电讯号,经电磁耦合环节和放大环节将放大了的电讯号与给定值进行比较后决定推行环节中的双向可控硅是否触发,当双向可控硅导通后,电磁阀得电吸合,开始喷雾洒水,同时单稳翻 控制器
Acoustic spray dust suppression device for coal mining face automatic spray dust, is based on “explosive atmospheres with explosion-proof electrical equipment,” the relevant provisions of the design, the Coal Division Shanghai Branch of explosion-proof inspection station review and inspection, agreed to carry out industrial tests A) Block diagram (see Figure 1) Blasting sound through the signal reception link, into a weak signal, the electromagnetic coupling and amplification aspects of the amplified signal with the given value after comparing the bid to determine the bidirectional link Silicon control is triggered, when the bidirectional thyristor conduction, the solenoid valve must be energized to start spraying water, monostable controller