| 摘要 |
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.
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