Vacuum system of suction rolls of a paper-making machine -- supply systems and regulation methods

The article describes and analyzes the vacuum system of suction rolls of a paper-making machine with its supply systems and regulation methods. It notes that the construction of a typical suction roll is consist of a rotating, bearing-equipped perforated body, with an incorporated inside stationary suction box linked to the vacuum supply system. It cites that the fundamental task of all suction rolls is to remove water from the paper web through the screen in the wet part of the machine.