Andritz receives order for rebuilding of disc filter from SCA Pulp in Sweden
International technology group Andritz has received an order from SCA (Svenska Cellulosa Aktiebolaget) to rebuild a disk filter at its pulp mill in Ortviken, Sundsvall, Sweden.
After the conversion, the production capacity of the disc filter (originally supplied by Andritz) is tripled to 900 bdmt / d, and the filtrate flow is increased to a maximum of 130,000 l / min. The refurbished disc filter will ensure the required throughput at different stroke levels, ranging from 300 to 700 CSF, for the production of various high quality pulps. Start is planned for 4Q 2022.
Andritz has developed a new filter bag solution that can withstand temperatures above 600 CSF. The new development was tested on a full-size disc filter during a 3-day test at the Andritz pilot plant in Graz, Austria. This was the first time that a single disk filter could be used in such a wide CSF area.
The order to rebuild the disc filter is part of SCA’s ongoing project to transform the existing TMP line (thermo-mechanical pulp) at the Ortviken plant into a CTMP (chemothermic-mechanical pulp) plant with an annual capacity of 300,000 tonnes per year.
SCA Pulp is part of SCA Group, Europe’s largest private forest owner, which offers packaging materials, pulp, wood products and renewable energy. The SCA Pulp plant in Ortviken, Sundsvall is expected to be operational in early 2023.
Andritz Pulp & Paper provides equipment, systems, complete plants and services for the production of all types of pulp, paper, cardboard and tissue.