| 摘要 |
The present invention relates to a method for defibrating fibre-containing material in a device operating with the pin mill principle. The device comprises a housing and in it a first rotor (11) equipped with collision surfaces; a second rotor (12) concentric with the first rotor and equipped with collision surfaces, the second rotor being arranged to rotate to opposite direction in relation to the first rotor; or a stator concentric with the first rotor and equipped with collision surfaces. Further, the device comprises a feed orifice (14) in the housing and opening to the centre of the rotors (11, 12) or the rotor and stator, and a discharge orifice (15) on the housing wall and opening to the periphery of the outermost rotor or stator. The fibre-containing material is led from the feed orifice (14) to the housing and made to flow together with air or liquid generating a suspension through the collision surfaces of the nested rotors (11, 12) or the nested rotor and stator to the discharge orifice (15) and further as a discharge flow out of the housing. The invention also relates to a device for carrying out the method.
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