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ANDRITZ successfully starts up rebuilt paper machine for Heinzel Group in Laakirchen, Austria

Posted By:07/12/2017

ANDRITZ successfully starts up rebuilt paper machine for Heinzel Group in Laakirchen, Austria

Graz, December 4, 2017. International technology Group ANDRITZ has successfully started up the rebuiltPM10 at Laakirchen paper mill for the Heinzel Group, Austria. The machine that originally produced SCpaper was converted to a fluting and testliner machine producing basis weights ranging from 70 to 140 g/m²based on recycled fibers. With a design speed of 1,600 m/min and a working width of 7,500 mm, it is nowone of the world’s most productive paper machines for fluting and testliners.

“We have implemented a comprehensive investment package for our paper mill in Laakirchen. The heart ofthis package is the PM10 rebuild. The new ANDRITZ technology enables production at the highest qualitylevel. In addition to our PM11, which will continue producing paper for the high-quality SC market, the PM10produces 450,000 t/y of fluting and testliners,” says Thomas Welt, Production Director at Laakirchen PapierAG.

In the stock preparation section, the ANDRITZ scope of supply comprises a complete OCC line with acapacity of 1,350 t/d, rebuild of the existing paper machine approach flow system, as well as sludge andreject handling. The pulping system with detrashing includes a 130 m³ FibreSolve FSR pulper, which is the largest low-consistency pulper ANDRITZ has ever installed in Europe.

The rebuilt paper machine features a PrimeFlow TW double-layer headbox with PrimeProfiler F consistencyprofiling system. This headbox enables best surface profiles at maximum production flexibility with the stiffseparating lamella between the layers. The new PrimeForm TW gap former with a specially designedforming suction roll for higher dewatering capacity gently dewaters the web and ensures high retention rates.

Forming shoes at both the top and bottom ensure optimized dewatering within a broad operating window. Incombination with the PrimeFilm Sizer unit, high strength is achieved in the end product.In the first drying group, PrimeRun Evo web stabilizers were installed to improve the runnability of themachine after the press section. PrimeRun Evo web stabilizers are high-vacuum boxes with three different vacuum zones in one box. Thus, the web can be removed carefully from the surface of the drying cylinder. Inaddition, PrimeRun Duo web stabilizers were installed in the existing pre-drying section and in the new afterdryingsection to enable an even web run throughout the drying section.

Instead of cast iron cylinders, PrimeDry Steel cylinders are used to achieve the targeted productioncapacities. They provide up to 7% more drying capacity compared to same-sized cast iron cylinders at thesame operating pressure and thus enable either increased production or reduced energy consumption withinthe space available. In addition, a new air system including heat recovery for the rebuilt drying section wasinstalled to provide energy-efficient paper production.

The new PrimeFilm Sizer applies surface starch to both sides of the paper web simultaneously to achievethe requested strength values. This starch application technology was installed due to the high speed of themachine. The PrimeAir Glide air-turn and the PrimeFeeder tail threading system result in gentle web turningand reliable and fast tail threading.
The scope of supply further includes the entire basic process engineering as well as the completePrimeControl automation package.

This order once again confirms the strong business relationship between ANDRITZ and the Heinzel Group.
ANDRITZ has already started up Europe’s largest new MG paper machine (PM2) successfully at the Pölsmill as well as a new black liquor recovery boiler plant.
The international Heinzel Group – with its affiliates Laakirchen Papier AG, Zellstoff Pöls AG, both in Austria,Raubling Papier GmbH, Germany, and AS Estonian Cell, Estonia – ranks among the largest producers ofmarket pulp, corrugated paper, and magazine paper in Central and Eastern Europe. Containerboard hasbeen part of the group’s portfolio since the beginning of 2016.
ANDRITZ is a globally leading supplier of plants, equipment, and services for hydropower stations, the pulp and paperindustry, the metalworking and steel industries, and for solid/liquid separation in the municipal and industrial sectors aswell as for animal feed and biomass pelleting. Other important business segments include automation and servicebusiness. In addition, the international Group is also active in the power generating sector (steam boiler plants, biomassboilers, recovery boilers, and gasification plants) and in environmental technology (flue gas cleaning plants) and offersequipment for the production of nonwovens, dissolving pulp, and panelboard as well as recycling plants. The publiclylisted technology Group is headquartered in Graz, Austria, and has a staff of approximately 25,700 employees. ANDRITZoperates more than 250 sites in over 40 countries.

ANDRITZ PULP & PAPER is a leading global supplier of complete plants, systems, equipment, and comprehensiveservices for the production and processing of all types of pulp, paper, tissue, and cardboard. The technologies cover theprocessing of logs, annual fibers, and waste paper; the production of chemical pulp, mechanical pulp, and recycledfibers; the recovery and reuse of chemicals; the preparation of paper machine furnish; the production of paper, tissue,and cardboard; the calendering and coating of paper; as well as the treatment of reject materials and sludge. The serviceoffering includes system and machine modernization, rebuilds, spare and wear parts, on-site and workshop services,optimization of process performance, maintenance and automation solutions, as well as machine relocation and secondhandequipment. Biomass, steam, and recovery boilers, as well as gasification plants for power generation, flue gascleaning plants, plants for the production of nonwovens, dissolving pulp, and panelboard (MDF), as well as recyclingplants are also part of this business area.
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