28 PROJECTS & CONTRACTS


Pulp Paper & Logistics


Modernisation of stock preparation at Stora Enso’s Oulu Mill


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tora Enso has ordered production technologies and key process equipment


from Andritz for the rebuild of the fibre line and drying machine at its Oulu Mill in Finland. The project, which also includes the modernisation of the mill’s stock preparation system, is part of Stora Ensoʼs plan to convert the mill’s existing fine paper production to containerboard production based on virgin fibre kraftliner as well as to increase the capacity of the pulp mill and pulp drying line. The typical end uses for kraftliner


are in packaging segments that require high strength, quality and purity, such as food, fruit and vegetables as well as heavy duty packaging. Ari Saarnio, director of the Stora


Enso Oulu Conversion Project, said: “Conversion of the Oulu Mill will enable Stora Enso to further improve its position in the


growing packaging market and take a major step forward in our transformation. “Andritz has proven experience


in similar rebuilds, and its strong position in pulp drying further contributed to this supplier selection.”


Port Townsend eases into the future with ABB


Port Townsend Paper Corporation (PTPC), a pulp and paper producer in Washington State, USA, has had its distributed control system (DCS) upgraded by ABB. ABB is providing a ‘phased


evolution’ upgrade for PTPC’s DCS which last year was nearing the end of its lifecycle. As a result, the Port Townsend mill will be able to continue operations and avoid a weeks-long shutdown while ABB performs services and upgrades during planned downtime. As part of the agreement, ABB changed the mill’s existing Human Machine Interface (HMI) to an ABB Ability System 800xA which


July/August 2019


also serves as an integrated electrical control system, a safety system and a collaboration enabler with the capacity to improve engineering efficiency, asset utilisation and operator performance.


The mill also added OPT800 Cook/B, which is part of the ABB Ability Advanced Process Control offering for pulp mills. OPT800 Cook/B is the latest version of the Advanced Batch Digester Management System that sequences and schedules PTPC’s batch digesters to process wood chips into pulp more efficiently, helping to increase production. PTPC will also benefit from minimised kappa variation and


steam levelling, which will result in reduced chemical and steam usage.


The mill also receives ABB Pulp and Paper Care as part of the agreement. This is a modular service agreement framework designed to cut complexity, control cost, and maximize capital for ABB customers. ABB Pulp and Paper Care can address customer needs such as: • Rapid Response guarantees


fast and flexible service response to maximize equipment availability. Services include spare parts management programs, 24/7 technical support, and remote support services. • Lifecycle Management


provides powerful tools and ABB knowledge base to optimise and extend equipment life through use of ABB Automation Sentinel subscription. • Performance Improvement


increases productivity through usability and efficiency optimisation of equipment and processes. Services provided can include Site Services, Resident Service Engineering, and System 800xA Performance Services. PTPC produces kraft pulp, paper,


containerboard, and speciality products by blending virgin and recycled fibres at Port Townsend. It has a sister corrugated packaging facility, Crown Packaging, in British Columbia.


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