Paper Industry Machinery Screw Press

The screw press is an essential industrial paper machine designed for washing and thickening various pulp types in the pulp and paper industry. This paper mill plant machinery is widely used in waste paper pulping systems, dispersion systems, and for thickening sulfate wood pulp and ammonium sulfite straw pulp. The screw press operates by feeding medium-consistency pulp into a rotating screw conveyor housed within a perforated screen. As the screw rotates, the pulp is conveyed forward while the decreasing pitch of the screw flights progressively compresses the material, forcing water through the screen openings while retaining the fiber.

The screw press features a compression ratio that is axially distributed in a scientifically optimized manner, ensuring excellent thickening performance throughout the processing length. An inner dewatering assembly with holes at the discharge side ensures uniform dewatering of both the inside and outside pulp layers. The pneumatic back-push assembly of this screw press guarantees stable and adjustable discharge consistency, adapting to varying production requirements. A special screw structure at the outlet simplifies maintenance and reduces downtime. By installing a screw press in your paper processing line, you achieve higher consistency pulp for downstream dispersion, refining, or paper machine feeding.

Our screw press is engineered for reliable, efficient operation with minimal maintenance requirements. The pneumatic back-push assembly of this screw press ensures consistent discharge quality, while the optimized compression ratio guarantees superior thickening performance. Available in twelve models covering capacities from 40 to 950 tons per day, the screw press can be tailored to any production requirement. For a detailed proposal on integrating a screw press into your paper making line, please email leizhanworld@gmail.com.