The design of deep-sea mining machine needs to consider multiple factors of deep-sea environment, including water depth, water pressure, ocean current, seabed topography and so on. The main role of the floating body is to provide enough buoyancy to support the stable operation of the mining machine and its equipment under water, and at the same time, it needs to have enough strength and stability to cope with the harsh Marine environment.



1. Buoyancy design: The buoy is usually made of lightweight, high-strength materials, such as fiber reinforced rubber, low-density composite materials with high pressure resistance. These materials not only maintain stable buoyancy in the deep-sea environment, but also effectively resist seawater corrosion and extend service life. In addition, the buoy is filled with high-pressure gas, and its pressure needs to be more than 1.5 times the pressure of the working water depth of the floating body to ensure that the buoy can work stably under different water depths.

2. Structural stability: The structural design of the deep sea mining machine buoy needs to consider its stability under complex sea conditions. Common buoy structures include rotating body structure and ellipsoid structure, which can effectively disperse the impact of water flow on floating body and reduce the phenomenon of stress concentration. At the same time, the cross-sectional area of the buoy is smaller than the cross-sectional area of the middle, so that the floating body can maintain good longitudinal stability in the water.

3. Modular design: In order to facilitate transportation, installation and maintenance, deep sea mining machine buoy often adopts modular design. Each buoyancy module is equipped with pipe access and clasps for easy connection to mining equipment such as vertical hoses. In addition, the combination and connection mode between modules also need to be carefully designed to ensure the stability and reliability of the overall structure of the buoy.