Outflow Pressure Screen VS Inflow Pressure Screen

Many pressure screens are used in the pulping line and playing different roles. Outflow pressure screen is an advanced paper pulp screening equipment for coarse and fine screening of various waste paper pulp. Inflow pressure screen is mainly used in approach system before paper machine to make the pulp uniform. High efficiency, save energy and advanced technology.

Working Principle of Outflow Pressure Screen and Inflow Pressure Screen

Outflow Pressure Screen: During operation, the pulp enters the separation chamber on the upper part of the pressure screen along the tangential direction from the pulp inlet pipe, and the heavier impurities are separated under the action of centrifugal force, settle in the heavy slag tank and are discharged from the heavy slag outlet. The pulp overflows through the circular weir plate and enters the screening area between the screen basket and the rotary basket downwards. Unqualified fibers continue to move downward and are discharged from the slag discharge pipe at the bottom of the cylinder.

Inflow Pressure Screen: During operation, the pulp enters the outside of the screen basket along the tangential direction from the pulp inlet pipe on the upper part of the machine body. With the help of the pressure difference between the inside and outside of the screen basket, the qualified pulp enters the screen basket through the screen sieve (hole) under pressure, and the accept pulp from the bottom. The pulp and impurities that cannot pass through the sieve (hole) will drop to the bottom and be discharged from the slag discharge pipe.

Pressure screen produced by our company has the advantages of high efficiency, advanced technology and save energy. Pressure screens are sold at home and abroad and get high praise from customers. Welcome to contact us for more details. Email address: leizhanpapermachine@gmail.com.