Sieve mechanism for extracting carrier liquid from fiber suspension during production of paper, paperboard or cardboard, comprises electrode disposed above, in, or below sieve region and connected to high voltage surge generator

摘要

The sieve mechanism for extracting carrier liquid from fiber suspension in which a plasma is generated in the suspension or in immediate vicinity and is separated from the suspension by a distance of smaller than 5 cm. An electrode (44) is used for production of the plasma. The electrodes (43, 44) are arranged in direct vicinity to wet suction region or a flat suction region. Pure oxygen or oxygen with noble carrier gas is supplied between or into the direct vicinity of the electrodes by gas distributor. A gas discharge takes place through the suspension which is led between the electrodes. The sieve mechanism for extracting carrier liquid from fiber suspension in which a plasma is generated in the suspension or in immediate vicinity and is separated from the suspension by a distance of smaller than 5 cm. An electrode (44) is used for production of the plasma. The electrodes (43, 44) are arranged in direct vicinity to wet suction region or a flat suction region. Pure oxygen or oxygen with noble carrier gas is supplied between or into the direct vicinity of the electrodes by gas distributor. A gas discharge takes place through the suspension which is led between the electrodes. The electrode (43) is formed as parallel plates. The electrode (44) is formed as wire, parallel wire lattices and right-angled or diagonally crossing round or flat sieve and exhibits peaks. The electrodes are arranged between plate connectors. An independent claim is included for treatment of unknitted fiber in suspension.