Pulp Paper & Logistics
PROJECTS & CONTRACTS 29
Spain’s LC Paper starts up its PM2 after Toscotec rebuild
S
panish papermaker LC Paper has started up its PM2 machine at Besalu
in Catalunya after a major dry rebuild by Toscotec and its associate Milltech. The objective was to reduce
the machine’s energy costs and improve paper machine efficiency as well as increasing production at higher tissue grades using the TT Drying Optimization for Energy Saving (DOES) package. LC Paper was established in 1881 and is now well regarded for niche products with its two machines (PM2 and PM3) each year producing 65,000 tonnes of tissue for the AfH market. Energy saving is a key focus of the mill, which is why it has been working for about 20 years on cogeneration applications.
Its first cogeneration project
was started in 1993 using a 6.5MW diesel unit followed in 1999 by another with 6.0MW. In 2009 LC Paper installed its PM3 line using a patented process that takes gas from the cogeneration plant to dry the paper by means of an innovative hood provided by
Milltech. In 2011 the first diesel engine was sold and in 2012 LC paper installed a new gas engine. Of this energy 6MW has been used for feeding the new hood by Milltech on PM2 with a further decrease of energy consumption. In the latest project Toscotec/ Milltech supplied a new double
More tissue manufacturing capacity for Lee & Man
Lee & Man Manufacturing in China has ordered an Advantage DCT 200HS tissue line from Valmet for its Chongqing mill at Zhutuo Town in Yongchuan City. “We are excited to work with Lee & Man in this project, supporting their environmental targets,” said Svenerik Olsson, director of the Tissue Mills Business Unit at Valmet China. “Our Advantage Visco Nip press
is specially designed for very high linear loads which combined with a cast alloy Yankee cylinder makes it possible to increase the paper dryness after press and reach significant drying energy savings.” The tissue machine will have a width of 5.6 m and a design speed of 2,000 m/min to produce 60,000 tons of toilet and facial tissue per year, using virgin wood pulp and bleached bamboo fibre
as raw material. Valmet will supply a complete tissue production line featuring stock preparation systems and an Advantage DCT 200HS tissue machine, which will be equipped with an OptiFlo headbox and a cast alloy Yankee cylinder. It will also feature Advantage tissue technology including ViscoNip press, a steam heated AirCap hood, WetDust dust system and a
press configuration with a rebuild of the felt run, a new TT SYD-15FT with doctoring system, a Duo-system Yankee hood, and a SMART eMT from Milltech. The wet end hood is a burner feeding type while the dry end hood could be fed either by cogeneration gases or by conventional burner. The exhaust gases from a gas engine are used to generate two stages of steam (high and low pressure) through steam generators, in addition to the heat recovery to pre-heat the make-up and combustion air for the hood. Maximum drying production with a machine trim width at reel of 3,050 mm will be 130 tonnes per day. With this new configuration the PM2’s thermal consumption will be lowered to 1,350 kWh/t.
SoftReel P reel. Basic engineering, installation supervision, training, start-up and commissioning are also included in the delivery. Also included is an automation
package from Metso with Metso DCS and QCS process control system. Founded in 1994, the Lee & Man Paper Manufacturing group has five mills with a capacity for up to six million tons of containerboard, duplex board and tissue paper as well as 180,000 tons of pulp in 2012. The paper capacity is expected to increase to more than seven million tons in 2014.
November/December 2014
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