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Fiberspectrum 11-04.Qxd The customer magazine of Andritz Pulp & Paper Issue 2 — 2004 Durametal® plates make the difference at Powell River — Page 12 MAGAZINE Contents 3 Pulp & Paper A message from Andritz P&P Management 4 Bark with a bite at Valdivia Arauco benefits from innovative wood processing technology 8 Biggest and best at Wisaforest UPM's modernization at Pietarsaari includes the world's largest chemical recovery 12 Plates full of performance at Powell River NorskeCanada finds that refiner plates make a big difference 16 A world's first at Yueyang Hunan Tiger becomes first in world to benefit from new mechanical pulping technology 20 Breathing new life into Kingsport Weyerhaeuser investment brings technology, stability to community 25 The rising Sun in China New Andritz stock prep system helps Shandong Sun Paper shine 28 News from the world of Andritz FiberSpectrum is published by: Contributing Writers: Leif Lindberg Andritz AG John Pagni Stattegger Strasse 18 Robert Puhr A-8045 Graz, Austria Martin Swayne Tel: +43 316 6902 0 [email protected] Contributing Photographers: Guillermo Acuña Managing Editor: Tom Grow Regina Edelmayer Klaus Janisch [email protected] Leif Lindberg Lauri Mattila Editor: Kurt Mitterböck Robert Puhr Martin Swayne [email protected] Vesa Torvio Timo Vesterinen Editorial Team: Pictures on pages 25-27 courtesy Bjørn Hansen of Shandong Sun Paper. Pirjo Nousjoki Mia Passi Graphic Design: Hannu Silventoinen Morrison Graphic Design Manuela Wagner [email protected] Copyright © Andritz AG 2004. All rights reserved. No part of this publication may be reproduced without permission of the publisher. 2 FiberSpectrum Issue 2 — 2004 Pulp&Paper A message from Andritz P&P Management This has been a year of progress within Andritz, reduce their capital costs and to improve the followed by excellent market acceptance. start-up curve to quickly reach full production. Valued customers have trusted us with more Our efforts have centered around simplifying comprehensive orders than ever before in our system designs, utilizing global sourcing, history — as a result of our ability to integrate manufacturing in the most efficient geogra- complementary acquisitions into a "full-line" phies, and standardizing system components capability from the woodyard to finished pulp while maintaining high product quality stan- bales. We have delivered complete stock dards. We introduced dynamic simulation preparation systems and deinking lines as well (IDEAS) tools for DCS check-out and opera- as tissue production systems. By efficiently tor training. This has contributed to shorter integrating our acquisitions, we have been able start-up curves. to capitalize on inherent synergies to better Customers, too, have a remarkable impact meet customer requirements. on capital costs: from their selection of proj- ect partners (individual equipment or EPC) to Single-line dependability the specification of equipment (standard mod- ules or new designs). The "single line" mill has firmly taken hold, Recent examples of standardization include since redundant or repetitive smaller systems the 9.3 m wide dewatering and pulp drying increase capital and operating costs. "Super lines including cutter/layboy and baling. Size" lines with 3000 t/d digesters (Veracel, Another is the PrimeLine™ tissue production Brazil), 4700 tds/d recovery boilers (Wisaforest, systems (5.4 m+ at speeds over 2000 m/min). Finland), and 3200 adt/d pulp dryers (Hainan, Modularization still permits customization, but China) are now appearing around the world. allows us to reduce engineering hours and Andritz's full-line strategy and highly reliable develop quality sub-suppliers — driving the equipment are preferred by customers. The overall cost down. most recent examples are the award of a fiber- line (including pulp drying/baling) and chemical Service partnership recovery systems from CMPC's Santa Fe mill in Chile, and a complete pulping line, including The formation of European Mill Service (EMS), recovery, for Andra Pradesh Paper Mills in a joint venture between Rheinhold & Mahla India. We would not have been able to com- of Germany and Andritz, gives mills a service pete for these projects without the efficient alternative as they consider their outsourcing integration of Ahlstrom options. We can Machinery, ABB Fläkt, demonstrate savings Lamb, and others. in maintenance costs of 20% over three years with this Reduced capital cost approach, combined with our OPE® con- One consistent require- cept — while improv- ment from customers is ing a mill's overall the need to drastically production efficiency. Markku Hänninen Bernhard Rebernik Head of Pulp Mill Technologies Head of Paper Mill Technologies [email protected] [email protected] Issue 2 — 2004 FiberSpectrum 3 Celulosa Arauco Overcoming the "bark with a bite" at Valdivia In January 2002, Celulosa Arauco y Constitución S.A. chose Andritz to supply a complete woodyard, black liquor evaporation plant, and white liquor plant for its Valdivia mill in Chile. One of the big challenges mas- tered by Andritz was the handling of eucalyptus and its unique bark. The Arauco Group is a leading The eucalyptus challenge Chilean pulp, wood, sawmill and panelboard company in Chile and The “insides” are different to accommo- Argentina. Its new Valdivia greenfield date the species mix at Valdivia. Pulp pulp mill cost US$1.2 billion and production is 60% pine (Pinus radiata) began operating in February 2004. and 40% eucalyptus (a mixture of Andritz worked closely with Arauco Eucalyptus globulus and Eucalyptus during the technical and commercial nitens). Arauco is now harvesting euca- phases of the project. Valdivia Mill lyptus to produce 1900-2100 adt/d pulp Manager José Vivanco explains, (1700 adt/d for pine). “Because the Andritz technical scope Arauco chose Andritz to supply the was clear and easy to follow, the whole woodyard due to its firm belief that Andritz negotiation process went smoothly.” could supply cost-efficient, competitive Following a successful start-up, quality equipment, according to Vivanco. Vivanco confirms that all Andritz “Eucalyptus presents unique chal- systems are operating as expected lenges,” Palo says. “The bark is long and have already exceeded design and stringy like rope. Instead of com- production levels. ing out of the debarker at designated slots, it comes out with the logs. And Eucalyptus nitens is even more difficult The Valdivia woodyard than Eucalyptus globulus. It bends like rubber and knots like dreadlocks!” The Valdivia project con- tains several new features that are designed for a world-class mill producing 600,000 t/a of ECF pulp. There are two debarking lines, chipping, storage, screening, and bark han- dling. "It looks like a nor- mal set-up for a wood- yard," Timo Palo, Andritz Project Manager for wood processing sys- tems, explains, "but the insides are different." José Vivanco, Mill Manager at Valdivia. 4 FiberSpectrum Issue 2 — 2004 The relationship between Andritz and EucaRoller™ Arauco began in 1991 when Andritz to the rescue supplied two pine debarking lines. In preparation for the Valdivia project, Between 20-30% of eucalyptus Arauco allowed Andritz to conduct bark is removed in the debarking experiments on their eucalyptus line. drum. The remaining bark comes The PowerFeed™ drum infeed con- out of the drum with the logs and veyor feeds entire 6-7 m2 unbarked log is extracted by the EucaRoller™. bundles directly into the debarking The EucaRoller™ is an Andritz drum. Eucalyptus and pine logs, short innovation that removes the and long, are treated separately. The remaining bark through engi- variable speed of the PowerFeed™ and neered gaps between strategi- cally placed rollers. It has reverse and shaking rollers to move the debarked logs sideways. This enables the loose eucalyptus bark to fall through the gaps. “The EucaRoller™ works extremely well and delivers full debarking capacity to the line,” Palo says. HHQ-ChipperTM centerpiece The Chipper is the centerpiece of The EucaRollerTM is an Andritz innovation to remove the woodyard because it has the stringy eucalyptus bark prior to the chipping operation. most influence on the chip quality – the foundation for good pulping. Andritz’s horizontally fed HHQ- Timo Palo, Andritz Project Manager for Chipper™ systems are success- woodyard systems for the Valdivia fully fulfilling this role at Valdivia. greenfield project. “The chippers produce quality chips for us at the required high the debarking drum provide the flexibili- capacities,” says Vivanco. ty to handle different logs. If the logs Eucalyptus is again a challenge are difficult to debark, the control sys- for the chipper, since it is a very tem can increase the speed of the hard, rough wood. In addition, debarking drum and/or reduce the eucalyptus has a low pH-value speed of the PowerFeed™ conveyor. (acidic) which promotes corro- The two debarking drums use a sion in open-air conditions. normal “tumble” de-barking method for Stainless steel replaces typical 2.44 m logs and a parallel debarking mild steel in the construction of format for 6 m logs, according to Palo. the chipper system to prolong Rotational speed can be adjusted the working life. The two according to wood quality and species Andritz HHQ-Chippers™ at from 3-7 rpm. Valdivia can process both long (6 m) and short (2.44 m) logs, but are ideal for the longer logs. One of the debarking drums on the new lines at Val- divia. Each drum is 5.5 m in diameter and 35 m long. Issue 2 — 2004 FiberSpectrum
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