Patent ID: 6491744
Filing Date: 2002-12-10
Classification: B01D,D21D

Abstract:
A device for deaerating fiber stock suspension, comprising:a substantially enclosed, horizontally orientated cylinder tank having at least four openings including at least one outlet opening, said cylinder tank having a horizontal tank axis; a supply device configured for supplying the fiber stock suspension, said supply device including at least one of at least one distributer pipe and at least one communicating chamber, each said distributer pipe having at least one jet tube connected to said distributer pipe, at least one of said at least one jet tube and said at least one distributer pipe being inserted through at least one of said at least four openings, each said communicating chamber connected to at least one of said at least four openings; a vacuum system connected to at least one of said at least four openings of said cylinder tank; and an overflow tube having an end inserted through one of said at least four openings of said cylinder tank, said overflow tube having an overflow height and an overflow length being located prior to said at least one outlet opening, in a direction of flow of the fiber stock suspension.