For machinery, it is even more important to pay attention to the operation and control during rainy days. For concrete mixing plants, they are usually operated outdoors.

On rainy days, using any machinery can cause a certain degree of damage to the mechanical equipment. Usually, rainwater contains acidity. If rainwater seeps into the interior of the equipment and cannot be cleaned in a timely manner, it can easily cause corrosion to the equipment of the concrete mixing station, thereby reducing the service life of the equipment. Therefore, when encountering the rainy season, strict precautions should be taken for details.

Through organizing data, the precautions for protecting small and medium-sized equipment during rainy days are summarized as follows:

- 1 -

Firstly, it is necessary to ensure that all systems of the equipment are functioning properly, ensuring that there are no situations such as material blockage, abnormal noise, or inadequate lubrication oil.

- 2 -

Ensure the smooth operation of the drainage system, do a good job in flood control, keep the work site unobstructed, and ensure the normal transportation of raw materials.

- 3 -

Regularly measure the water content of sand and stone in the mixing plant , even if adjusting the water content of the mix proportion.

- 4 -

Ensure that there is a systematic drainage ditch in the foundation pit and groove, and regularly check the stability of the concrete equipment soil wall to avoid soil collapse.

- 5 -

 After applying isolation agent to the template, it should be covered to prevent it from being washed away by rainwater; If it is found that the isolation agent of the concrete mixing station has been washed away by rainwater, it should be repainted before pouring concrete.

- 6 -

Before pouring concrete at the concrete mixing plant, the accumulated water in the mold should be drained.

- 7 -

Ensure that outdoor structures and components of equipment should be equipped with rain shelters during construction on rainy days.

Otherwise, sufficient covering and rainproof materials (such as tarpaulin, linoleum, etc.) should be prepared to cover in a timely manner and prevent rainwater erosion. Once the surface of the component is washed away by rainwater, it should be promptly smoothed and polished again.

- 8 -

Special attention should be paid to the electrical machinery and wires of the mixing plant equipment, which should be regularly inspected by electricians to prevent leakage; When the equipment leaks electricity, it should be immediately stopped for repair.

The above are the relevant precautions that concrete machinery should pay attention to when working on rainy days. In addition, not only do outdoor equipment require such maintenance, but also appropriate maintenance is required inside the equipment of the concrete mixing station. Equipment that may be soaked in water can accelerate aging and reduce the service life of the entire equipment.