Industria de la pulpa y el papel
The pulp & paper industry involves complex processes such as pulping, bleaching, coloring, coating, and drying. Throughout production, various liquids,including strong alkalis, bleaching agents, and pulp suspensions,must be continuously and safely transferred. These fluid often feature high corrosiveness, fiber content, and solid residues, posing challenges like pipe clogging, seal leakage, and pump corrosion. Reliable, corrosion-resistant, and clog-proof pumps are therefore essential to maintain stable production and reduce downtime.
Changyu offers tailored solutions with fluorinated lining pumps for corrosive fluid and vertical submersible Pumps for fibrous slurries—plus custom-engineered designs to meet specific pulp & paper industry process needs.
Application in the Pulp & Paper Industry
Built to Handle the Toughest Fluid — From Corrosive Liquids to Fibrous Pulp
Wood pulp
Waste paper pulp
Fibre pulp
Dye liquid
Bleaching liquor
Wastewater
Recovery liquor
Alkali liquor
- Wood pulp
- Waste paper pulp
- Fibre pulp
- Bleaching liquor
- Alkali liquor
- Dye liquor
- Wastewater
- Recovery liquor
Custom Pumps for the Pulp & Paper Industry
Highly Corrosive Fluids
Recommended Pump Type: Fluoroplastic-lined pump
Reason: The pump body is internally lined with fluoroplastic materials such as polytetrafluoroethylene (PTFE), offering exceptional corrosion resistance. It withstands the corrosive effects of harsh fluids including concentrated alkalis and strong oxidising bleaching solutions.
Fibrous and Slurry Fluids
Recommended pump type: Vertical Submersible Pump
Reason: The pump body may be directly immersed in the medium during operation, thereby saving installation space and enabling the effective conveyance of wastewater, pulp, and other fluids containing fibrous residues.
Application in Pulp & Paper Industry
The pulp & paper industry encompasses complex liquid handling at every stage, from pulping and bleaching to coating and wastewater treatment. Conveyed fluids frequently contain fibres, solids and potent chemicals, leading to blockages, corrosion and wear issues. Pumps operating in such environments must deliver consistent, reliable performance under harsh conditions to ensure efficient material transfer and production stability.
Changyu provides bespoke pump solutions for the pulp & paper industry, integrating anti-clogging, wear-resistant and corrosion-resistant properties to enable long-term, trouble-free operation of equipment.
Pulp Transfer
Fibrous pulp easily clogs standard pumps.
Advantages: Large-flow impellers and smooth channels ensure continuous pulp transfer with minimal clogging and maintenance.
Bleaching Process
Bleaching chemicals corrode pump parts quickly
Advantages: PTFE lining and corrosion-resistant materials extend pump life and reduce maintenance frequency.
Coating Circulation
High-solid coating causes rapid wear
Advantages: Wear-resistant alloys and optimized design minimize abrasion, maintaining efficient coating circulation.
Chemical Dosing
Fibers and solids block suction lines
Advantages: Submersible design and anti-clog impellers enable reliable, continuous wastewater pumping with minimal downtime.
FAQs
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