Environmentally effective solutions from ANDRITZ Fiberline Services
Minimize the use of chemicals and water while increasing availability and production efficiency of the fiberline processes including cooking, brownstock washing, screening, and bleaching - in existing pulp mills.
At ANDRITZ Fiberline Services, we have the expertise to satisfy our customers’ requirements and sustainability goals by reducing lifecycle costs and environmental impact. The fiberline faces several challenges related to yield, pulp quality, pulp cleanliness, energy efficiency, and minimizing water consumption. We are fully aware of these challenges and provide various fiberline services to assist you in overcoming any problematic areas of production successfully.
“But how to increase the availability of the Fiberline?”
ANDRITZ Fiberline Services work closely with customers’ mill technology experts to provide comprehensive support throughout the lifecycle of the pulp mill, ensuring optimal performance and efficiency of cooking, washing, screening, and bleaching equipment. You can rely on ANDRITZ’s extensive knowledge and experience across the mill to achieve the desired outcomes. All our operations follow the standards for environmental and quality requirements, with safety as our top priority.
Benefits
Environment
Improved energy efficiency, minimized chemical and water consumption.
Expertise
Improved capacity and quality, highest possible availability, lower lifecycle costs, short and effective shut-downs and fast start-ups.
Partnership
Comprehensive cooperation and support throughout the lifecycle.
Safety
Systematic safety and risk management.
Digester feedline
ANDRITZ feedline services cover all types of feedlines from the conventional, feeder-based line to the latest pump fed feedlines. Our equipment services cover single equipment, rebuilds and upgrades to:
- Chip meters and high/low pressure feeders
- Chip chutes and chip bins
- Steaming vessels
- Chip pumps
- Sand separators and MC-tramp separators
- Chip chute circulation equipment
Our process upgrades are always tailor-made, and the focus is on improved pre-steaming, reliable chip metering, improved runability and simplified process.
Continuous digester systems
ANDRITZ provides digester services to hydraulic and vapor phase digesters. Our digester component services cover:
- Top replacements and component upgrades for existing top separators
- Chip level detection and control
- Digester center pipe upgrades
- Digester SureFlow* screens
- Bottom replacements and component upgrades for existing digester bottoms and outlet devices
Our process upgrades - digester top compaction circulation and A-Plus Lo-Solids* cooking upgrades - provide maximum flexibility and washing result for all types of continuous digesters.
A+ Batch cooking solutions
ANDRITZ has adopted the best technological features from the continuous cooking process for use in batch systems.
- ANDRITZ batch digester
- Degassing screen and chip packer
- SureFlow Batch-Tec screens
In general, batch cooking provides good flexibility with regard to kappa targets and wood furnish; however, reduced stability and energy consumption when compared to continuous cooking. By combining the best of both, it is possible to increase pulp quality and yield, while reducing energy consumption, and thereby cost and environmental impact. And all while improving safety.
Sawdust and annual fiber cooking
ANDRITZ has a huge amount of knowledge when it comes to older and existing cooking systems. Our portfolio covers single equipment, rebuilds and upgrades to:
- Sawdust and annual cooking system feedlines
- Rotary valves
- High Pressure Rotary Feeder, NEW
- M&D cooking digester
- UpFlow Post Reactor, NEW
- MC Tramp Material Separator
Our upgrades to sawdust and annual fiber cooking lines provide capacity increase and improvements come also in the form of reduced energy and white liquor consumption, as well as quality and yield improvements.
Screen baskets, rotors, repairs & rebuilds and up-grades
ANDRITZ is a leading supplier of screen baskets and rotors for the production of pulp and paper – increasing value by increasing screening efficiency.
- The screening process removes interfering solid substances from the stock suspension that differ from the fibers in size, shape and deformability
- Depending on the process goal ANDRITZ is providing the perfect match for baskets and rotors
Cleaners
ANDRITZ offers service and upgrades as well as spare and wear parts for cleaner plants of all brands to ensure efficient removal of debris from pulp and paper stock.
- The cleaning process removes interfering solid substances from the stock suspension that differ from the fibers in weight and density
Secondary heat utilization
ANDRITZ secondary heat utilization solutions are designed to maximized safety and minimized environmental impact.
Our portfolio covers:
- Digester evaporator for medium-pressure vapor generation
- Flash tank for recovering the thermal energy of the black liquor coming from the cooking process
- Kettle reboiler for cleaner steam generation
- Vapor reboiler for replacing flash team with fresh steam
- Direct steam replacer process for the use of condensates or other suitable clean water streams as steam source for direct steam applications
The benefits are gained by maximizing the recovery of clean condensates, optimizing water and secondary condensate utilization and recovering waste heat from effluent and other sources.
*Trademark of the ANDRITZ GROUP. For information regarding ownership and countries of registration, please visit andritz.com/trademarks.
- DD-Washer*:
Parts and retrofits
As the OEM, ANDRITZ has all critical engineering data in hands to provide the confidence that spare parts are manufactured and rebuilds are done to the original manufacturing specifications.
Upgrades
One of the advantages of retaining the original outside design of the DD-Washer is that any existing DD-Washer can be upgraded with the latest improvements and technology on the inside. This is perfect for customers with mills that have had to adapt to market changes over the years, where they have a need for more capacity, or are simply looking to get higher efficiency with lower energy costs. The original washers still have core value even though they are older units. - Wash presses:
The latest addition to ANDRITZ’s high efficiency pulp washing solutions available is the COMPACT Press. Besides the COMPACT PRESS, ANDRITZ offers solutions for almost all Twin Roll Presses on the market.Parts and retrofits
ANDRITZ spare part portfolio covers OEM parts for COMPACT PRESSES and its predecessors, as well as spare parts to other presses. We have an extensive inventory of the most common and critical spare parts for fast delivery. We also offer a comprehensive range of Wash Press retrofits to bring new features to safety, machine performance, maintenance, and lifetime by replacing components to the latest design or materials.
Upgrades
Most of the innovations present on the latest generation COMPACT PRESS are also available as upgrades to older generation presses. We offer great solutions to all main components – drums, drives, screws and sealings. For other presses ANDRITZ offers multiple improvements to the performance in terms of safety, reliability, quality, production costs and reduced environmental impact. - Vacuum washers:
Parts and retrofits
ANDRITZ spare part portfolio covers all OEM** parts and a huge variety of spare parts also to other brands. We offer also a comprehensive range of rebuilds and retrofits to all major brands of washing and bleaching equipment.
Upgrades
Strong product development and long-lasting period of manufacturing under several licenses around the globe has built ANDRITZ to be a world-class supplier for pulp mills. Technology development continues and ANDRITZ has great upgrade products for most of Vacuum washers on market for better runability, improved efficiency and longer lifetime.** OEM Brands Kamyr, Enso, Ahlstrom, ANDRITZ-AHLSTROM, all logos and names are historical.
- Diffusers:
ANDRITZ’s history as an OEM diffuser designer and manufacturer goes all the way back to the 1960’s, when first diffusers were delivered. Since then, multiple new patens have been granted, diffuser capacity and efficiency has increased, and environmental targets have reached a new level. But our passion for diffusion washing has stayed the same.
ANDRITZ provides excellent knowledge and innovative products to resolve diffuser challenges no matter whether they are related to durability, runability or process related issues. Our strong focus on product development enables us to develop great new products and solutions that can be installed as upgrades to existing diffusers.
Parts and repairs
We offer screen plates and blank plates from stainless steel to titanium and screen plate/screen assembly repairs. For Atmospheric diffusers our most popular upgrades are modification of a double stage diffuser to a single stage, stroke length extension, improved wash water distribution and bottom bearing upgrade. For pressure diffusers we offer for example tie rod upgrade, Turbo pressure diffuser, wash baffle screen and NextGen Hydraulics. - CB-filters:
ANDRITZ was a licensed manufacturer for IMPCO# from 1985 to 1995 and has been supplying COMPACTION BAFFLE# Filter parts and services to the Pulp and Paper Industry for nearly 25 years. This expertise is being combined with local resources to bring you the highest quality parts and services available. Upgrades, like high capacity decking, upper pond distribution header, steam doctor support beam and inbox access panels are designed to provide more stable operation, better washing and easier maintenance.
*Trademark of the ANDRITZ GROUP. For information regarding ownership and countries of registration, please visit andritz.com/trademarks.
# IMPCO and COMPACTION BAFFLE are trademarks owned by Valmet.
ANDRITZ technologies enable operations at medium consistency (MC) conditions throughout the fiberline - saving water, energy, equipment, and layout space.
- Mixers: More efficient mixing and prevention of gas separation with ANDRITZ Mixers.
- Dischargers: Prevention of channeling of the stock and even discharge from large tanks with ANDRITZ Discharges.
- Scrapers: ANDRITZ Scrapers enable uniform discharge and prevent channeling for stable quality.
- Pumps: Low energy consumption with ANDRITZ MC and DUFLO* Pumps.
With the goal of maintaining high availability while keeping lifecycle costs to a minimum, ANDRITZ provides technical support, on-site services, spare parts, wear components, and specialized diagnostic tools for all its production systems. These capabilities are found within a single organization to ensure minimal interfaces and maximum productivity. In addition to traditional maintenance, repair, troubleshooting, and spare parts, ANDRITZ specialists are available to inspect, audit, and recommend process improvements and upgrade opportunities. Specialized services for rebuilding and rehabilitating equipment extend and expand the economic return on asset investments.
*Trademark of the ANDRITZ GROUP. For information regarding ownership and countries of registration, please visit andritz.com/trademarks.
