The pulp and paper industry relies on durable, high-capacity pumps to manage fibrous slurries, chemicals, and wastewater throughout the production process. From raw pulp preparation to coating, drying, and effluent handling, pumps must operate continuously under abrasive and often corrosive conditions. Consistent flow, energy efficiency, and reliable uptime are essential to keep paper mills productive and cost-effective.
Key Applications
1. Pulp Slurry Handling
Raw wood pulp or recycled fibre is mixed with water to form a slurry that flows through the production line. Centrifugal and progressive cavity pumps are used to move this abrasive, fibrous material while resisting clogging and wear.
2. Chemical Additive Dosing
Paper production involves the precise addition of bleaching agents, binders, sizing chemicals, and pH adjusters. Metering pumps ensure accurate dosing into mixing tanks and processing lines to maintain product quality and consistency.
3. Coating and Starch Application
In coated paper production, pumps are used to deliver coatings, starch solutions, and surface treatments evenly across the sheet. Low-shear, consistent flow pumps help avoid foaming and ensure smooth, uniform coverage.
4. White Water and Process Water Circulation
Water used during forming and pressing stages is recovered and recycled. Pumps circulate this “white water” back into the system, supporting water conservation and cost efficiency. Multistage and end suction pumps are common in these closed-loop systems.
