Stirrer for glass fiber reinforced plastic septic tank

The invention relates to the technical field of excrement treatment, in particular to a stirrer for a glass fiber reinforced plastic septic tank, and the stirrer comprises an equipment box and a septic tank, the equipment box is fixedly arranged on a top plate of the septic tank, a stirring motor and a relay are sequentially and fixedly arranged on a bottom plate in the equipment box from left toright, and a rotating shaft extending into the septic tank is arranged at the bottom of the stirring motor, an agitator is fixedly arranged on the rotating shaft, and a viscosity sensor is arranged atthe bottom of the agitator. According to the invention, the viscosity sensor is arranged on the stirrer and can detect the viscosity of substances in the septic tank during stirring, when the viscosity is too high, a PLC controls a frequency converter to increase the output power, increase the operating power of the stirring motor and improve the stirring efficiency, and when the viscosity sensordetects that the viscosity is lower than a set value, the PLC controls the relay to be powered off, a time module is arranged in the PLC, the relay can be started at regular time, automatic operationof septic stirring is achieved, and the stirrer is suitable for application and popularization.