The role of outflow pressure screen and inflow pressure screen in the paper production line is critical, they can reject some impurities and adjust the concentration of paper pulp. Leizhan’s pressure screen equipment adopted the advanced production technology and with accessories produced by famous manufacturers at home and abroad. Its pulping equipment has advantages of high capacity, high efficiency and save energy.
The outflow pressure screen is a device for continuously screening slurry under pressure in a completely closed state. During operation, the slurry enters the separation chamber at the upper part of the pressure screen from the slurry inlet pipe along the tangential direction. The heavy impurities are separated under the action of centrifugal force, settle in the heavy residue tank and are discharged from the heavy residue port. The slurry overflows through the circular weir plate and enters the screening area between the screen drum and the rotating drum, and the qualified fibers are discharged through the screen drum through the good pulp opening; the unqualified fibers continue to move downward, and are discharged from the bottom of the cylinder. The tube is drained. There is a dilution water pipe opposite the slag discharge port in order to adjust the tail slurry concentration. There are many raised blades on the surface of the rotating drum rotating at high speed inside the sieve drum, and each blade generates negative pressure when rotating, thereby purifying the sieve drum and not blocking the sieve drum.
The inflow screen is a device for continuous screening under pressure in a completely closed state. During operation, the slurry enters the outside of the screen drum from the pulp inlet pipe in the upper part of the machine along the tangential direction. With the help of the pressure difference between the inside and outside of the screen drum, qualified pulp is under pressure Under the action, it enters the sieve drum through the sieve slot (hole) and is led out by the good pulp tube at the bottom. The slurry and impurities that cannot pass through the sieve slot (hole) fall to the bottom and are removed from the slag discharge tube. The rotating fins on the outside of the screen drum can generate a gentle pressure to further improve the circular flow of the pulp, and the back end generates negative pressure to play the role of backwashing the screen slot (hole). It can prevent the screen slot (hole) from being blocked, and the slurry can continuously pass through the screen slot (hole) from the surface to ensure the continuous operation of the screen.
Pressure screen is our main equipment and has mature production technology. Want to know more details about outflow inflow pressure screen, welcome to contact us. Email address: firstname.lastname@example.org.