Valmet Fibertech Ab

Valmet Fibertech Aktiebolag

Tomas Wikstr&ouml;m

Kjell Forslund

Magnus Danielsson

Apparatus for the screening of fiber suspensions is disclosed including a housing, a reject outlet and an accept outlet, a screen located within the housing, a rotor including pulsation wings mounted therein, a reject chamber in the housing for collecting a reject portion of the fiber suspension, and an accept chamber for collecting the accept portion of the fiber suspension passing through the screen and supplying it to the accept outlet, each of the pulsation wings including an outside face and an inside face, a leading edge, a trailing edge, and upper and lower ends so that a predetermined pressure difference is created between the outside and inside faces of the pulsation wings in the direction of the lower edge thereof.

Screening device and rotor for use in a screening device

Apparatus for mixing steam or bleaching agents with a pulp suspension is disclosed, including a chamber for receiving the flow of pulp suspension from an input line, the chamber including a jacket surrounding the flow of pulp suspension through the chamber, the inlet to the chamber defined by an inlet flange having a diameter which is smaller than the diameter of the input line, and the jacket including a supply orifice for supplying the steam or bleaching fluid to the flow of pulp suspension in the chamber.

Growing community of inventors

Sundsvall, Sweden

Tomas Wikström

Growing community of inventors

Sundsvall, Sweden

Tomas Wikstr&ouml;m

Tomas Wikström