ABB to Supply Comprehensive Process Controls for SCA's Östrand Pulp Mill
ABB's Ability System 800xA was selected as the digital automation platform for the mill. This includes a fully integrated control and monitoring center that provides a complete process overview and the possibility to personalize ergonomics and work environments for each operator.
Oct. 5, 2017 - ABB said that it will supply comprehensive ABB Ability™ digital systems and solutions for SCA's Östrand pulp mill expansion project.
The Östrand pulp mill in Timra municipality currently produces 430,000 tonnes of bleached softwood kraft pulp. Approximately half is used in SCA's own production of hygiene and printing paper. The remainder is sold to external customers. Östrand also produces 95,000 tonnes of chemical thermomechanical pulp (CTMP).
The expansion project, entitled “Helios”, will double the Östrand mill's production capacity from 430,000 tonnes to 900,000 tonnes (expandable to 1 million tonnes). According to SCA, the mill will be the largest production line for bleached softwood kraft pulp in the world.
In 2016, ABB Ability System 800x was selected as the digital automation platform for the mill. This includes a fully integrated control and monitoring center that provides a complete process overview and the possibility to personalize ergonomics and work environments for each operator.
In addition to integrated process control and power monitoring, ABB's delivery to the Östrand project consists of transformers, motors, frequency converters and drive systems for large areas of the mill.
ABB will now also install ABB OPT800, Advanced Process Controls for pulp mills, which enables control of production against key ratios such as reduced raw material and energy costs, emission restrictions and others.
ABB's Advanced Process Control will enable maximum productivity and maximize flow throughout the entire mill to ensure the right quality and minimal energy consumption. The functionalities are integrated into the single operator environment to provide operators with real-time decision support to help them run the mill in the most optimal way.
The system will monitor and optimize the processes for pulp washing management, oxygen delignification, bleach control, causticizing and evaporation. By utilizing the information already available in ABB Ability System 800xA, the system can customize multi-function control with a variety of variables based on advanced analytics to help manage these process areas optimally.
In order to minimize conversion times and ensure the correct quality when changing parameters for a new product run, the system also includes recipe management and pulp follow-up functions to monitor the pulp status throughout the process.
The overall process control will provide operators with increased security and insights, as they can foresee how the system will control the mill. The operator thus gets a full overview of what is happening and can run the facility in a controlled and safe manner.
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