Technical and Process Excellence

unites companies, research, and universities for technological breakthroughs in Finland

ANDRITZ has recently partnered with HolyPoly, a trailblazing German recycling company, to offer a unique solution for the disposal of all used paper machine clothing – circular economy at its peak!

No matter how smoothly your paper or board machine runs, and how thoroughly you take care of your press felts, you will still need to replace them on a regular basis. And that is usually an awkward job, requiring a number of trained personnel. But it doesn’t have to be that way – not any more. When ANDRITZ introduced the Felt Master, the changeover process got a whole lot simpler, safer and more reliable.

Fitting firmly into the ANDRITZ CircleToZero™ initiative, the HQ-Press bark press has evolved into a “must have” at pulp mills as it lowers carbon footprint, saves on energy costs, and considerably improves power boiler efficiency.

is much more efficient than you might think

Biomass powder burning

Textiles made from cellulose fibers are becoming more and more important as the world rapidly moves away from fossil-fuel derived products and seeks more environmentally friendly raw materials. ANDRITZ has developed the A-ConFlexTM continuous cooking method for bleached dissolving pulp production to make it easy for pulp producers to switch between dissolving pulp and kraft pulp according to market demand.

Transforming a pulp mill into a biorefinery for renewable fuels

Reutlingen, Germany, September 2022. Conservation of resources, reduction of energy consumption, CO₂ reduction, closed-loop circular economy - these are all firmly established cornerstones of ANDRITZ's sustainability strategy.

In 2020, ANDRITZ launched specialized HC refining technology for tissue production in China to tackle the challenges of surging pulp costs as well as to meet the demands of tissue producers looking for differentiation. Due to its remarkable success in operation, the technology was then steadily introduced to other Asian countries from 2022. The following interview gives a complete overview of HC refining technology.

As tissue mills seek to optimize their energy consumption for optimum sustainability, ANDRITZ’ introduction of a hood air system based on electrical heating is very timely

Simple and smart – In further efforts towards maximizing efficiencies of white liquor plants, ANDRITZ has developed LimeDry-H™.

The new PrimeClean TO is the latest innovation in cleaners from ANDRITZ. The “TO” designation comes from the fact that it combines two cleaning stages in one unit (two-in-one). Thanks to its innovative reject chamber design, the PrimeClean TO is ideal for removing sand and small particle debris from approach flow stock and recycled fiber processing lines at higher feed consistencies. The first systems have been sold and start-up is planned for early next year.

ANDRITZ lamella evaporation plants have proven to be so successful among pulp producing customers that major expansion in manufacturing has occurred three times over the last decade to keep up with the increased orders. The latest addition to lamella manufacturing will see a brand-new state-of-the art facility starting-up in China in the summer of 2022.

A Hidden Gem in the Fiberline

KEEPING SKILLED PERSONNEL SAFE! It is a credit to the skills of pulp makers across the globe that there are not more accidents reported when carrying out tail threading in the drying process. ANDRITZ has created a full range of solutions for automated tail threading from the wet end to the cutter to avoid exposure to moving parts.

The Metris DryQ Sensing Sealing Lip is able to determine its own wear status and thus fosters the ability to provide predictive maintenance to plant operations.

Even though pulp and paper mills are energy-intensive, our industry is one of least CO₂-intensive due to the wide use of bio-based and renewable fuels. The tissue and towel sector, however, emits more carbon per tonne of paper than most other paper grades, primarily due to purchased electricity from fossil-fuel sources. ANDRITZ is contributing in many ways to reduce the carbon footprint for tissue production through its “CircleToZero” initiative.

ANDRITZ has developed a world-wide reputation as a leader in the production of steel Yankees for a variety of paper grades and even tobacco machines.

Increasing capacity of the lime kiln is time consuming and costly as it usually involves the lengthening of the existing kiln shell, or even a replacement with a larger diameter. ANDRITZ experts have approached the challenge from a completely different angle, and now a capacity increase of up to 40% can be achieved at much lower costs.

ANDRITZ experts give a complete overview of its PrimeLineTAD (Through Air Drying) technoloy for the production of premium tissue products: Joseph Guadagno: Vice President Tissue and Air Systems, North America Stefano Marenco: Director PrimeLineTIAC and R&D Tissue Paul Richards: Senior Technology Manager Tissue

ANDRITZ engineers are continually seeking ways to make products better – through design, manufacturing methods, and/or materials of construction. The introduction of the TwinFlo Prime refiner illustrates this point.

Reliable measurements from inside the digester. ANDRITZ has teamed up with Savcor, a Finnish technology provider specializing in the use of electrochemistry for corrosion prevention and structural health monitoring, and have together developed a novel method to measure alkali levels inside the digester.

Major upgrades and a series of smaller innovations have been incorporated into the new ANDRITZ PrimeFilter D to improve performance and reduce maintenance. The new design includes the latest bagless technology, which is well-proven in over 65 installations to date. The upgraded PrimeFilter D has been well-received already – 15 units have been started up and more orders are being received from leading papermakers.

In just two years, ANDRITZ has launched two completely new machine concepts for tissue producers to provide the very best in technology available for making specialty products with maximum efficiencies. The two concepts, the PrimeLineTEX and the PrimeLineVRT, are now available on the market and can be tested at the ANDRITZ tissue pilot plant in Graz.

ANDRITZ has created a simple but remarkably effective way to improve energy efficiency of the pulp mill, at the same time increasing the mill overall evaporation capacity. The DEvap is a small digester evaporator unit integrated into the cooking plant.

Utilizing deep process knowledge and with many years of successful deliveries to woodyards around the world, the ANDRITZ Smart Woodyard has combined all its experience with the latest in IIoT technology. The result is an ongoing revolution of the woodyard.

ANDRITZ has designed a broad range of high-consistency (HC) refiners to meet the demands of pulp, paper, panelboard, and recycle producers. At the top of the line in terms of throughput and motor power is the TX68 twin refiner.

ANDRITZ is regarded as an innovator in developing technologies for the manufacture of premium tissue grades that are in high demand today. Yet the majority of the world’s tissue is produced using conventional dry-creping techniques. To serve this large market, ANDRITZ continually enhances the reliability and performance of its “standard” technology.

The recovery boiler smelt spout area is an unwelcoming and potentially dangerous place to work. However, essential regular tasks need to be carried out in the area for efficient and smooth operation of the boiler. A combined team of ANDRITZ design experts and workshop engineers have come up with a smart solution, the Smelt Spout Cleaning System, that enables essential work and maintenance to take place in a harsh environment.

An innovative concept – ANDRITZ Screen Booster – helps any mill upgrade the performance of its Screen Room. The Booster modules – Basket, Bearing Unit, Rotor, and Dilution Rotor – were created to enhance any of four critical components in a screening system. Any one, or all, of these upgrades can be easily installed on a screen as needed, regardless of the original equipment manufacturer.

The Pulp Drying System designed by ANDRITZ is a new and innovative system that combines selected areas of development into one complete, reliable, high-performance drying line.

Well-known with over 5,400 pressure screens installed in numerous stock preparation lines worldwide, ANDRITZ presents the latest evolution in screening – the PrimeScreen X. The innovative design of the new screen builds on the successes of the widely valued ModuScreen family, but offers innovative key benefits. The improvements in energy efficiency, screening performance, and maintainability are significant.

allows mills to see the chemical cycle in a new light.

The patented QSB forming fabric design allows producers to improve tissue product quality and machine performance.

ANDRITZ integrates several innovative technologies to increase chipper throughput and wood chip quality.

Since the 1980s, thanks to advances in computation technologies, computer based simulation of processes using first principle models has become a well-known and widely used engineering tool for various industries. As our understanding of processes has increased, their representative models have become more realistic and sophisticated. The resulting improvement in accuracy has made simulation a fundamental predictive and diagnostic tool in process industries.

The shortest route to fiber quality. Innovative GPS navigates shortest route to fiber quality at lowest cost. Like your smartphone's GPS can guide you almost anywhere in the world, the "papermaking GPS" guides you in making the right choices about fiber mix, applied energy, and paper quality. It’s significantly reducing trial and error on your machine and saving time and money.

Cleaner stock at the highest level of performance

Having it all - top quality screening & high level runnability.

With installations in 24 countries, the DD-Washer is clearly preferred for fiberline washing applications. To support this installed base, ANDRITZ has developed a full range of monitoring, diagnostic, and support services to reduce lifecycle costs and keep availability high.

in paper coating technology.

The cost of fiber and energy represent about 60% of a paper mill’s manufacturing cost. Optimizing refining action with the proper refiner plate technology can, therefore, have a significant impact on the bottom line. This TechTalk discusses the development of low-cost, energy-efficient fiber treatment in the refining process.

for Lignin Recovery and sulfuric acid production in a kraft pulp mill

The latest innovation in dewatering

for removing chloride and potassium from the recovery loop.

Up until relatively recently, bonding and fiber strength when producing pulp could only be measured in a laboratory, which means time, expense, and delayed results, as often the pulp is already made when the tests are being carried out. ANDRITZ’s Fiber Online Index has changed all that and provides a tool for real-time monitoring of pulp quality.

Each generation better than the previous