Pulp Paper & Logistics
PROJECTS & CONTRACTS 29
Dewatering system for Frohnleiten mill uses latest technology
A
dewatering system for the Refiner Mechanical Pulp (RMP) process at Mayr-Melnhof Karton’s
mill in Frohnleiten, Austria, is being supplied by Andritz, with start-up is scheduled for the fourth quarter of 2020. The process will use a Vertical
Screw Thickener (VST) in which pulp is fed in from the top and then compressed and dewatered as it moves downwards. The self-filling and gravity-assisted dewatering principle enables higher throughput
and pulp dryness because the available screen area is fully used. The system also comprises a dilution conveyor, MC pump including standpipe and a TurboMix agitator. Automation, instrumentation, engineering, mechanical installation, commissioning and start-up supervision are also part of the project. At the Frohnleiten Mill, the RMP with freeness of 350ml is dewatered from an inlet consistency of 3.5 per cent to 25 per cent consistency at
Valmet project round up
Valmet is supplying paper making and automation systems to a number of its global customers. ● In the Republic of Korea, Valmet will deliver a new sizing section with a hard nip sizer to Asia Paper Manufacturing at Sihwa Mill. The main target for the rebuild of PM1 is to increase strength properties of produced container and gypsum board grades. The start-up of the rebuilt paper machine is scheduled for the second half of 2021. ● In India, Valmet will supply key board making technologies to Sri Andal Paper Mills for its new containerboard making line, located in Tamil Nadu. “It was vitally important for
us that the management-level relationship with Valmet was very good. Valmet has a strong reputation, and we trust that Valmet’s technology will help us to reach our high-quality targets,” says Palanisamy Subramaniam, managing director of Sri Andal. The containerboard segment in India is quite fragmented and largely utilizes Asian technology
for board making. Sri Andal is aiming at producing high-quality containerboard with tangible efficiency improvements to enhance its competitiveness. ● In China, Valmet will supply DNA automation systems to Shandong Sun Paper Industry. Two systems will be installed paper machines PM 39 and PM 40, enabling the lines to increase availability, production efficiency and optimise operation. “Valmet’s automation system
is user-friendly, which allows our operators to easily run two new paper machines,” says Wenchun Wu, project director at Sun Paper. ● In Finland, Valmet will supply automation technology to Stora Enso’s Oulu Mill for the paper machine (PM7) grade conversion project. “We have had a long-term
cooperation with Valmet in Oulu since 1991 and we are pleased to continue working together in this strategic project. We also value Valmet’s strong local presence here in Oulu,” says Ari Saarnio, project director at Stora Enso.
the discharge in one unit. The pulp is then stored at a consistency of 10 per cent in a new pulp storage tower that feeds the existing board machines. The existing RMP system was supplied by Andritz in 1996 and processes a mixture of wood chips containing spruce, larch and fir as raw material for the mill’s own board machines producing coated recycled board. Mayr-Melnhof Karton is the world’s leading producer of coated recycled cartonboard.
Engineering services for pulp mill in Brazil awarded to Pöyry
Engineering consultancy Pöyry has been awarded a contract by LD Celulose SA for services during the construction of the new 500,000 tons per year dissolving pulp mill in Brazil. The contract is for engineering,
procurement and construction management (EPCM) for the balance of plant (BOP) at the mill, which represents an investment of US$1.3 billion for LD Celulose SA, a joint venture between Duratex and Lenzing group. The services provided by
Pöyry include interconnections between all process areas, turbo generators and steam distribution systems, the water cooling centre and other complementary systems.
The pulp mill will be built in
Duratex’s forest area in Triângulo Mineiro (MG), with all production going to export, and supplying Lenzing group’s operations in
Europe and Asia. Luís Künzel, chief executive of LD Celulose SA, says that the mill will bring a positive socioeconomic impact throughout the region. “Our intention is to benefit the municipalities that comprise the hub, providing opportunities in various sectors,” said Künzel. “We are committed to working with the best environmental practices, and Pöyry’s expertise and ability to provide sustainable engineering solutions make it the ideal partner to lead this process, from the initial stages of the project.” Fábio Bellotti da Fonseca,
president of Pöyry in Brazil, added: “We are very proud to have been awarded this important assignment, which reflects the solid evolution of this trusted partnership, and leading solutions for generations to come.”
May/June 2020
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