The number of workers required for the installation of a sewage mixer is affected by a number of factors, including but not limited to the model and size of the mixer, the complexity of the installation environment, and the specific requirements of the installation work. Here is a summary analysis:

1. Small mixer:

- For small sewage mixers, due to their small size and relatively simple structure, the installation process may require only a few workers. In general, 2 to 3 workers are sufficient to complete the installation work, one of whom is responsible for guiding the installation and inspection, and the other workers carry out the specific installation operations.

2. Large mixer:

- For large sewage mixers, the installation process is more complicated and requires more manpower. Depending on the size of the equipment and the difficulty of installation, four to six or more workers may be required. Some of these workers will handle the handling and positioning of heavy equipment, while others will focus on fine work such as mechanical and electrical connections.

3. Special installation environment:

- If the installation environment is complex, such as working at heights, in small Spaces or requiring special safety measures, additional workers may be required to ensure safety and efficiency. In addition, if special tools or equipment are required during the installation process, additional professionals may be required accordingly.

4. Project management and safety supervision:

In addition to workers directly involved in the installation, project management and safety supervisors should also be considered. These personnel are not directly involved in the installation, but are essential to ensure the smooth and safe completion of the project.

To sum up, the number of workers required for the installation of sewage mixers varies from case to case. In general, small mixers may require 2 to 3 workers, while large mixers may require 4 to 6 or more workers. In practice, it is recommended to adjust flexibly according to the specific situation and ensure that all work is in compliance with safety regulations.