TechNews

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.

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.

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.

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

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 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.

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.

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.

in paper coating technology.

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

ANDRITZ PULP & PAPER publishes SPECTRUM magazine twice a year. We created SPECTRUM to highlight the success of our customers and discuss the main issues facing the pulp, paper and power industry today.

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