초록 ▼

A method and device for defibrating fiber-containing material in a device operating with the pin mill principle. The device includes a housing and in it a first rotor equipped with collision surfaces; a second rotor concentric with the first rotor and equipped with collision surfaces, the second rot

A method and device for defibrating fiber-containing material in a device operating with the pin mill principle. The device includes a housing and in it a first rotor equipped with collision surfaces; a second rotor concentric with the first rotor and equipped with collision surfaces, the second rotor being arranged to rotate in a direction opposite to the first rotor; or a stator concentric with the first rotor and equipped with collision surfaces. Further, the device includes a feed orifice in the housing and opening to the center of the rotors or the rotor and stator, and a discharge orifice on the housing wall and opening to the periphery of the outermost rotor or stator. The fiber-containing material is led from the feed orifice to the housing and made to flow together with air or liquid generating a suspension through the collision surfaces of the nested rotors, or the nested rotor and stator to the discharge orifice and further as a discharge flow out of the housing.

대표청구항 ▼

[What is claimed is:] [1.]i) providing a defibrating device havinga) a rotatably-mounted first rotor equipped with collision surfaces mounted thereon in concentric peripheries;b) a rotatably-mounted second rotor equipped with collision surfaces mounted thereon in concentric peripheries and adapted t

[What is claimed is:] [1.]i) providing a defibrating device havinga) a rotatably-mounted first rotor equipped with collision surfaces mounted thereon in concentric peripheries;b) a rotatably-mounted second rotor equipped with collision surfaces mounted thereon in concentric peripheries and adapted to rotate in a direction opposite to that of said first rotor, said second rotor in cooperating relationship with said first rotor such that the collision surfaces of said first rotor and the collision surfaces of said second rotor project toward each other and are interspersed,c) a housing containing said first and second rotors, and having a feed orifice and a discharge orifice, said feed orifice in communication with a center of said first and second rotors and being sufficiently large that fiber-containing material may be fed freely therethrough at ambient pressure; said discharge orifice in communication with a periphery of an outermost rotor;ii) feeding said fiber-containing material into said feed orifice of said defibrating device, such that said fiber-containing material is made to flow with the aid of air or liquid to said first and second rotors, and then through said collision surfaces to said discharge orifice to produce defibrated material; andiii) collecting said defibrated material from said discharge orifice.