The working principle of the sewage mixer is mainly based on the principle of motor drive and mechanical mixing. The following is a detailed description of how it works:

1. Motor drive: The sewage mixer is usually powered by the motor. After the motor is connected through the power supply, the electrical energy is converted into mechanical energy, and the rotating torque is generated.

2. Reducer adjustment: The high-speed rotation of the motor output usually needs to be decelerated through the reducer to meet the actual needs of sewage mixing. The reducer can reduce the speed and increase the torque, so that the impeller can rotate at the right speed and force.

3. Stirring paddle rotation: the output shaft of the reducer is connected to the stirring paddle to drive the stirring paddle to rotate in the sewage. Stirring paddles are usually designed with sufficient eddy and shear forces in mind to effectively disperse and suspend solid particles in sewage.

4. Sewage mixing: the vortex and shear force generated by the rotation of the stirring paddle are used for sewage, so that the suspended substances and sediments in sewage are evenly mixed. This mixing effect helps to improve the treatment effect of sewage, creating favorable conditions for subsequent treatment steps (such as precipitation, filtration or biological treatment).

5. Control and regulation: The sewage mixer is usually equipped with a control system to adjust the speed and running time of the motor to adapt to different sewage treatment needs. Some advanced mixers may also have automatic control functions, which can automatically adjust the mixing parameters according to the actual situation of the sewage.

To sum up, the working principle of the sewage mixer is to rotate the stirring paddle through the motor, and use eddy current and shear force to achieve uniform mixing of substances in the sewage, so as to optimize the sewage treatment process.