NETTED PART OF CARDBOARD MACHINE Russian patent published in 1998 - IPC

FIELD: pulp-and-paper industry, in particular, production of sanitary and hygienic types of paper. SUBSTANCE: cardboard machine has delivery box and perforated distributing plate with ultrasonic vibrations generator. Perforated plate is mounted in delivery box. Vacuumizers are positioned in paper web moulding zone on perforated shaft, with vacuum degassing capacity of vacuumizers increasing in the direction of advancement of paper web. Apparatus has two netted conveyors. Perforated shaft with pressure chamber is mounted on lower conveyor. EFFECT: increased efficiency and improved quality of paper. 1 dwg