The board machine has an annual capacity of 220,000 tons and is complemented by a new wood handling line, a BCTMP plant with HC bleaching, as well as stock preparation, approach flow, broke, and fiber recovery systems. ANDRITZ will also deliver the Motor Control Center, the Multi Motor Drive and a complete PrimeControl system for the entire line. The line is scheduled to be started up during the first quarter of 2019.
The new wood handling line for aspen will be added to an existing line for birch and is designed for a debarking capacity of 80m3 sob/h. It encompasses a Rotabarker debarking line, an HHQ Chipper with a capacity of 70m3 sub/h, chip screening and a chip silo reclaimer, chip conveyors to BCTMP, a bark line and bark feeding to existing bark conveyors, as well as further transportation to the existing bark and waste handling system.
The new BCTMP line with a design capacity of 360 admt/d contains chip washing, pre-steaming and impregnation units, two high-consistency refining stages, bleaching, washing, screening and reject treatment equipment, a disc filter for thickening purposes, and a storage tower.
The stock preparation system handles NBKP and LBKP fibers in two lines and includes two ANDRITZ FiberSolve FSV pulpers, cleaning with two AhlCleaners, and eight ANDRITZ TwinFlo low-consistency disc refiners. The approach flow system is designed for three layers. Broke and fiber recovery systems round off the stock preparation and approach flow systems.
About the board machine
The board machine has three PrimeForm Fourdrinier layers – one containing a PrimeForm HB hybrid former with a wire width of 4,200 mm – and will operate at a design speed of 800 m/min. The press section consists of two PrimePress X shoe presses and one smoothing press. The pre-drying section contains steel drying cylinders and is followed by a PrimeCoat film press with a post-drying section, also equipped with steel drying cylinders. The machine is complemented by two PrimeCal calenders (one hard nip, one soft nip) and a coating section with the latest PrimeCoat roll coating heads technology, as well as a PrimeReel pope reeler and a slitter rewinder at the end.
The entire production line will be equipped with an ANDRITZ PrimeControl system that is aligned to the specific needs of paper machines. It includes extended features for process automation throughout the paper mill and minimizes the number of subsystems and associated interfaces. The advanced Multi Motor Drive system will complement the automation system and ensure reduced energy and power consumption.
Delivery will be handled on an EPS basis, where ANDRITZ provides advisory services relating to installation, commissioning, and training. KAMA will perform the civil and installation work.