Dust concentration laser warning device for flour mill

The utility model discloses a dust concentration laser warning device for a flour mill. The dust concentration laser warning device for the flour mill is characterized in that the device comprises a laser measurement module, a signal processing module and a control module; the laser measurement module comprises a laser diode and a photodiode and is used for transmitting and receiving laser signals and conducting photovoltaic conversion, the signal processing module comprises an amplifying circuit and an STM32 and is used for processing received electric signals, and the control module comprises a sound-light alarm and ventilating device and is used for conducting alarm and dust removal by ventilation according to an instruction sent out by the STM32. According to the dust concentration laser warning device for the flour mill, the dust concentration change of the flour mill can be detected in real time, sound-light alarm and dust removal by ventilation can be conducted when the dust concentration reaches a preset value, and explosion accidents are avoided.