Combined knotter and fine screen from Valmet
Published June 28, 2000 00.00.00 +2 GMT
Valmet Chemical Pulping Lines have introduced a new type of screen, combining knotting and fine screening operations in a single unit. This new development, DeltaCombiTM, has successfully passed mill operation tests and was recently launched on the market. The knotter section of the screen has a rotating perforated basket and a stationary rotor. The accept pulp, which has gone through the knotter basket then goes to the fine screen section installed on top of the screen. The fine screen consists of a Delta rotor and a slotted NimegaTM wedge bar basket, through which the accept pulp passes.
The DeltaCombi screen is manufactured in three sizes, DC4, DC8 and DC10. The DC10 is able to separate knots and screen pulp simultaneously at a daily production rate of up to 1000 ADT.
Valmet Corporation is the world's leading supplier of technology, systems and equipment for the pulp, paper, converting and panelboard industries. In 1999, Valmet's net sales was EUR 1.7 billion and it had a personnel of 10,600.
Valmet is part of the Metso Corporation which is a global supplier of process industry machinery and systems. Metso's business areas are fiber and paper technology, automation and control technology and machinery. The net sales of Metso Corporation were EUR 3.4 billion in 1999 and the personnel totaled approximately 23,000. Metso Corporation is listed on the Helsinki Exchanges and the New York Stock Exchange.
For more information, please contact: Alpo Tuomi, Vice President, Valmet Chemical Pulping Lines, tel. +358 204 82 9813