The wind turbine tower is equipped with a shot blasting cleaning machine for the inner and outer walls, and can also clean the inner and outer walls of large pipelines. Through shot blasting cleaning, the oxide scale and old paint and other attached dirt on the surface of pipelines and steel tanks can be quickly removed. After obtaining a certain surface roughness, a surface coating protective layer can be applied to improve the adhesion of the paint film, enhance the fatigue strength and corrosion resistance of the workpiece, improve the internal quality of the workpiece, and extend its service life.

The shot blasting technology is used to clean the inner wall of the cylinder, mainly using compressed air as a power source to accelerate the projectile and generate a certain amount of kinetic energy, spraying the inner wall of the pipe and steel cylinder. When the pipe is positioned in the spray gun chamber, the spray gun will automatically extend into the inner cavity of the pipe, and the spray gun will move up and down inside the chamber to complete the all-round spray cleaning of the inner wall of the pipe.

The tower outer wall shot blasting machine is a new type of shot blasting cleaning equipment developed by our company, which is suitable for surface rust removal of wind turbine tower outer walls. Adopting an efficient motor directly connected shot blasting machine, the shot blasting machine compensates for the swing angle through a rotating shaft, ensuring good contact between the shot blasting machine and the tower shaft. The machine adopts a tower shaft rotation and the shot blasting machine moves along the axis direction of the tower shaft to achieve cleaning and rust removal, which can quickly and cleanly complete the shot blasting and rust removal of the outer wall of the wind turbine tower (steel pipe).

The inner wall shot blasting car not only performs shot blasting on the crossbeam, but also walks on the crossbeam. The walking is variable frequency speed regulation, and the surface of the completed tower presents a certain width of circular spiral silver white stripes. The walking speed of the car is matched with the rotational speed of the tower, so that the adjacent silver white stripes overlap with each other, ensuring that there are no omissions on the surface of the tower. The method of sanding steel pipes can be changed to: during the sanding process, the sanding trolley does not move at the same time. After completing one circle, it moves to another working position and then completes another circle. Until the inner wall of the steel pipe is finished.