The precautions of sewage mixer in the operation process mainly include the following aspects:

First, equipment inspection and maintenance

1. Check the equipment regularly:

- Check whether the components of the mixer are loose or leaking, and tighten and repair them in time.

- Check electrical systems, mechanical components, agitator blades and bearings, etc., to ensure they are in good condition.

- Check whether the amount of oil is sufficient, whether the oil quality is good, and replace or add lubricating oil in time.

- For submersible mixers, it is also necessary to check whether the insulation performance is good to prevent leakage.

2. Clean the equipment regularly:

- Clean the blade of the mixer and the surrounding area to prevent the accumulation of solid matter, affecting the mixing effect and equipment operation.

- Clean the oil chamber, cable inlet and other areas prone to fouling, and keep the equipment clean.

3. Maintenance:

- Perform regular maintenance as recommended by the manufacturer, including replacement of worn parts, maintenance of bearings, etc.

- For equipment that has not been used for a long time, insulation test and start-up test should be carried out before starting to ensure the normal operation of the equipment.

Second, safe operation

1. Follow the operating procedures:

- The operator should be familiar with the structure and working principle of the mixer, and operate in strict accordance with the operating procedures.

- Before starting the mixer, ensure that other equipment of the sewage treatment system has been started and is in normal operation.

2. Avoid overload operation:

- Avoid stirrer running for a long time without load or overload to prevent motor overheating and other problems.

- Set reasonable speed and mixing time to meet processing requirements and prevent overload from damaging equipment.

3. Pay attention to safety protection:

- It is strictly prohibited to climb or perform other dangerous operations on the equipment during operation.

Use personal protective equipment, such as safety glasses and gloves, to prevent accidental injury.

- Ensure that the operator understands the emergency shutdown procedures of the equipment and is familiar with the location of the emergency shutdown equipment.

Third, exception handling

1. Monitoring operation parameters:

- Regularly monitor the operating parameters of the agitator, including current, voltage, speed, etc., to detect anomalies in time.

- Abnormal operating parameters may indicate that there is a problem with the equipment, requiring timely shutdown for inspection and maintenance.

2. Troubleshooting:

- When the equipment failure alarm, the operator should immediately cut off the power and report the situation to the relevant personnel.

- Before any repair and maintenance work begins, the main switch power supply should be cut off to ensure that others cannot start the equipment.

Fourth, other precautions

1. Avoid frequent booting:

- It is strictly prohibited to start the mixer frequently, and the dry running time shall not exceed the specified time (such as 30 seconds) to reduce the impact and wear of the equipment.

2. Environment check:

- Check the safety environment around the equipment to ensure that there are no inflammable and explosive materials or other safety hazards.

To sum up, it is necessary to pay attention to equipment inspection and maintenance, safe operation, abnormal treatment and other related matters during the operation of the sewage mixer to ensure the normal operation of the equipment and the sewage treatment effect.