# TYPE: Cultural Paper Making Line TIME: 2017-07-31
A pressure screen is a screening device that completely seals the pressure into the pulp and isolates it with a pressure pulse instead of a mechanical vibration. There are many kinds of pressure screens, the often used pressure sieve blade surface resembles wing, so it is also called rotor screen. There are single drum and double drum, inflow and outflow, the rotor in the drum and outside the drum.
The pressure screen is divided into inflow pressure screen and outflow pressure screen(also called Mid Consistency Pressure Screen) according to the direction of the slurry in the sieve; according to the shape of the pressure sieve drum, the paper pulp pressure screen can be divided into a hole sieve and slot screen. The screening equipment slot screen can be divided into smooth flat plate slot screen and wave shape slot screen. Nowadays, the pressure screen of corrugated sieve plate is widely used.
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