DEVICE FOR PRODUCTION OF FIBER AEROSUSPENSION FROM FIBROUS MATERIAL Russian patent published in 2003 - IPC

FIELD: pulp-and-paper industry; applicable in production of paper by aerodynamic method. SUBSTANCE: device has cylindrical body with channels for air intake and fibrous material supply, and outlet channel. Axially located in body are stator, the first and second rotors. The second rotor is installed inside the first rotor for rotation to same sides as the first rotor, or counter to each other. Rotors are made in form of two disk members and blades between them with radial orientation. Formed between stator and external edges of the first rotor blades and between internal edges of the first rotor blades and external edges of the second rotor blades are annular cavities. The first annular cavity is communicated with air intake channel through channels or holes made in stator and with channel for intake of fibrous material through one or several branch pipes. Formed behind the internal edges of the second rotor is central cavity communicating with device outlet channel. EFFECT: provided material separation into fibers with formation of uniform flow of aerosuspension without swirlings and with required moisture content. 7 cl, 10 dwg