ANDRITZ receives order for a major disc filter rebuild from SCA Pulp, Sweden
International technology group ANDRITZ has received an order from SCA (Svenska Cellulosa Aktiebolaget) to rebuild a disc filter at their pulp mill in Ortviken, Sundsvall, Sweden. After the rebuild, the production capacity of the disc filter (originally supplied by ANDRITZ) will be tripled to 900 bdmt/d, and the filtrate flow will be increased to a maximum of 130,000 l/min. The refurbished disc filter will ensure the requested throughput at different beating degree levels, ranging from 300 to 700 CSF, for the production of various high-quality pulp grades. Start-up is scheduled for the fourth quarter 2022. The ANDRITZ scope of supply comprises the main disc filter components, such as: *New hollow shaft with high-volume filtrate channels – the largest-volume filtrate channels ever designed for an ANDRITZ disc filter *396 ANDRITZ SuperFlow sectors for 22 filter discs with customized filter bags *State-of-the art disc guiding system *New filtrate valve with automated adjustment to the different beating degrees *New knock-off and cleaning shower systems *New repulper screw *On-site services for installation and start-up as well as supervision of start-up