Rebuilds across Europe
Saving costs, increasing efficiency
2013-11-22 - From Italy to Sweden: Four European paper manufacturers have planned and realized rebuilds on their paper machines in cooperation with Voith. The main goals were increased machine efficiency and runability as well as reductions in raw material consumption. To achieve them, Voith installed a DuoFormer Base and rebuilt a size press, while also integrating an EdgeSaver module and NipcoFlex presses. And thus the papermakers could meet their targets: Efficiencies were increased and costs reduced.
Cartiere del Polesine PM 4, Loreo: speed increased.
When Cartiere del Polesine, a long-established, family-owned company near the town of Adria, Italy, wanted to increase the capacity of its machine in 2006, the owners turned to Voith. Voith’s technicians installed a DuoFormer base with a two-layer headbox in 2007. Finally the next step followed in September 2011: Due to installation of a DuoCentri Nipcoflex press section, including an extension of the predryer section, the solid content after the press section increased to the promised 51%, and the speed increased to 1,000 m/min.
Cartiere del Polesine was very satisfied with the results and at the end of 2011 also ordered a new quality control system, clothing and other equipment. Over the past 10 years, Voith has successfully carried out more than 20 rebuilds in Italy.
Cartiere del Polesine was very satisfied with the results and at the end of 2011 also ordered a new quality control system, clothing and other equipment. Over the past 10 years, Voith has successfully carried out more than 20 rebuilds in Italy.
Weig TechnoKarton BM 6, Mayen: improving runability. This manufacturer of plasterboard in Mayen, Germany, has commissioned Voith with rebuilding its BM 6, to be implemented in two steps. At the end of 2012, ropeless threading in dryer group 9 was implemented. Presumably by the end of 2013 Voith will tackle the rebuild of the existing size press, with the aim of maintaining a clean periphery around the size press and improving runability.
Stora Enso BM 7, Skoghall: saving raw materials. Stora Enso Skoghall, Sweden, has given Voith the order for rebuilding its press section. The first press nip was rebuilt and a shoe press (NipcoFlex press) was installed. The aim of the rebuild was to use less raw materials for board production while keeping the bending stiffness unchanged. Due to the increased discharge dry content after the press, energy used for drying is reduced and there is a potential for increasing the production speed. Stora Enso produces liquid packaging board and folding boxboard in Skoghall.
Stora Enso BM 7, Skoghall: saving raw materials. Stora Enso Skoghall, Sweden, has given Voith the order for rebuilding its press section. The first press nip was rebuilt and a shoe press (NipcoFlex press) was installed. The aim of the rebuild was to use less raw materials for board production while keeping the bending stiffness unchanged. Due to the increased discharge dry content after the press, energy used for drying is reduced and there is a potential for increasing the production speed. Stora Enso produces liquid packaging board and folding boxboard in Skoghall.
Rondo Ganahl PM 2, Frastanz: saving fibers. At Rondo Ganahl in Frastanz, Austria, an EdgeSaver module was installed on both sides of the PM 2 on the headbox of the top wire in July of 2011. The product performs two functions at the same time: it takes over edge limiting of the web at the headbox and at the same time ensures single-grade recovery of edge trimmings. The fibers can thus be recycled. Annual savings of around 200,000 € in raw material costs can thus be estimated after nine months of operation.
Both EdgeSavers have been running very satisfyingly since startup. Connection to the existing machine components was trouble-free. Handling during operation also convinced the customer from the very beginning. //
Both EdgeSavers have been running very satisfyingly since startup. Connection to the existing machine components was trouble-free. Handling during operation also convinced the customer from the very beginning. //