By converting double-felted cylinders in the fourth and fifth dryer groups to single-felted cylinders, Lee & Man was able to improve the runnability and shorten the
threading time of its PM 15.
When Södra Cell Mönsterås realized they were losing about four tonnes of accept fiber each day during softwood production, they quickly started to look for a solution to fix the problem.
In the Beijing Gaobeidian Wastewater Treatment Plant, sludge total solids from the primary clarifier varied from below 1 to 60 g/l, which means that from time to time only water is pumped to the sludge thickening tank. The Valmet TS total solids transmitter was installed in the outlet of the primary clarifier to control pumping.
The most important property of a shoe press belt, used in paper and board machines, is its toughness, in all probability. Tough material survives in even the hardest and fastest impact situations. In tests made at Tampere University of Technology, Valmet’s BlackBelt showed the best impact resistance compared to other belt designs.