Local ventilator for mining

Overview of the function of ore intelligent local ventilation system: Artificial adjustment of air volume function: Set the inverter output frequency of the man -machine interface of the display panel of the display panel and the intelligent control switch to control the speed of the fans to adjust the air volume. Wind -locking function: When the system controls the switch failure (the main control switch is shut down), the main control switch output control signal is controlled, and the feed power switch controls the power supply power supply of the excavation working surface to power the power. Sound and light alarm function: In order to remind the people at the scene in order to remind the people at the scene, this system can condense a sound light alarm device. This device uses 36V AC input. When the PLC detects the over limit of the gas sensor through the probe, or the transformer fails through the 485 bus communication, the PLC will emit sound alarm, so as to remind the sta…