Pulp Paper & Logistics
ANDRITZ 11
determining solutions.” Another reason for placing the order in Graz, according to Lunabba, was the successful experience the Heinzel Group had with Andritz and sister company Zellstoff Pöls, during installation of its PM2 speciality paper machine, which went into operation at the mill in 2013.
Michael Pichler, head of the global paper and tissue division’ at Andritz, also emphasizes that it “was a project of high strategic significance, and Heinzel was the ideal partner for us. There is a great deal of mutual trust.” The rebuild covered the stock
preparation system, the wet end and dry end of the paper machine, the film press as well as automation. In addition, Andritz supplied the complete basic process engineering.
Critical phase The rebuild phase was influenced by two special factors: the extreme time pressure – a window of only 12 months was defined between the decision to make the investment and start-up of the machine rebuild – and the customer’s stipulation to integrate as much of the existing equipment as possible at the same time as allowing PM11 to continue running alongside the rebuild work. “The actual time scheduled for
the rebuild work itself was ten weeks. We were then four days late in getting stock onto the wire. In view of the intensity of the rebuild, that was a very brief delay,” says Lunabba. Johann Stadlmayr, head
of technical planning, adds: “Completing this project within that time set new standards. After all, the shutdown phase was estimated at a point where we did not want as much rebuild work. Then more and more items were
General view of the PM10 line. PrimeDry Steel cylinders were selected instead of traditional cast-iron
added in the course of the project, although the deadline remained the same because there was already a demand for the product on the market.”
New standards Up to 600 people were working
on the site over a period of four to five weeks, and there were actually more than 800 there during the peak phase. There was very little space, the second machine was running, and as if that wasn’t enough, building work, installation, and
cabling had to be carried out simultaneously as well. “The overall logistics were an absolute masterpiece,” says Stadlmayr. “And the overall result is very positive, Andritz really proved that they were able to handle this project,” says Lunabba.
PrimeDry Steel cylinders yield better drying performance with the same size and operating pressure as traditional cast-iron cylinders, and thus help to increase production or save energy
4 May/June 2018
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