The process consists of a non-stop cleaning of boilers and heat exchangers thanks to the work of small steel spheres.
These are brought in the upper part of the structure thanks to a pneumatic system, once in the position they are thrown down to the bottom. Hitting the surfaces, energy allows the detachment of waste and powders, that are collected in the bottom of the tank.
A conveyor belt brings both to a device that divides it from the spheres, refilling the system.