Pumps in Paper and Pulp

First Pump is a global leader in providing high-performance pumping solutions tailored to the demanding needs of the paper and pulp industry. Their pumps are designed to handle abrasive, corrosive, and high-temperature fluids while ensuring energy efficiency, reliability, and minimal maintenance. Below is a detailed overview of their applications, pump types, and key advantages.

Pumps Applications in Paper & Pulp Production

Stock Preparation (Fiber Slurry Handling)

Pulp Mixing & Screening:

• ANDRITZ centrifugal pumps transport fiber suspensions (pulp slurry) between refiners, screens, and storage tanks.

• Challenges: High fiber content (3–6% consistency), abrasion from wood chips, and clogging risks.

• Solution: Robust ANDRITZ SCP (Stock Centrifugal Pumps) with large free passages to prevent blockages.

Chemical & Process Liquids

White Liquor, Black Liquor, and Green Liquor:

• Pumps handle caustic chemicals in the Kraft pulping process (e.g., NaOH, Na₂S).

• Challenges: High alkalinity, temperature (up to 150°C), and corrosion.

• Solution: ANDRITZ HPP (High-Pressure Pumps) with duplex stainless steel or titanium construction.

Bleaching Chemicals (ClO₂, H₂O₂, Ozone):

• Corrosion-resistant ANDRITZ sealless magnetic drive pumps prevent leaks of hazardous chemicals.

Paper Machine Circulation

Headbox Feed & Shower Systems:

• ANDRITZ multistage pumps ensure consistent pressure for uniform paper formation.

• Challenges: High flow rates (up to 5,000 m³/h) and precision pressure control.

• Solution: ANDRITZ MHM (Multistage High-Flow Pumps) with variable speed drives (VSD).

Vacuum System (Savealls & Foam Control):

• ANDRITZ liquid ring vacuum pumps remove water and air from the forming section.

Effluent & Wastewater Treatment

Recycling & Clarification:

• ANDRITZ submersible pumps handle fiber-rich wastewater in sedimentation tanks.

• Challenges: Solids content, wear, and clogging.

• Solution: ANDRITZ WPP (Wastewater Process Pumps) with hardened impellers.

ANDRITZ Pump Types for Paper & Pulp Industry

Advantages of ANDRITZ Paper & Pulp Pumps

• High Efficiency – Optimized hydraulics reduce energy consumption by up to 20%.
  

• Long Service Life – Advanced materials (ceramic coatings, duplex steel) minimize wear.
  

• Smart Monitoring – IoT-enabled sensors for predictive maintenance.
  

• Custom Solutions – Tailored designs for specific pulp & paper processes.
  

• Sustainability – Reduced water and chemical waste through leak-free sealing.

Paper & Pulp Industry Challenges & ANDRITZ Solutions

Conclusion: ANDRITZ Pumps for Reliable Paper & Pulp Operations

ANDRITZ pumps are engineered for reliability, efficiency, and durability in the paper and pulp industry, addressing challenges like abrasion, corrosion, and high-pressure demands. From stock preparation to wastewater treatment, ANDRITZ provides customized, high-performance solutions that enhance productivity while reducing operational costs. Their smart pump technologies and sustainable designs make them a preferred choice for modern paper mills worldwide.

Key Takeaway: Whether handling fiber slurries, aggressive chemicals, or wastewater, ANDRITZ pumps ensure smooth, efficient, and trouble-free paper and pulp production.