Refiner

Refiner comprising relatively rotatable inner 2 and outer 3 conical refining blades. The refining blades 2, 3 being coaxially arranged around a symmetry axis 6 and being provided with first bars 200 and second bars 300, respectively, for grinding of fibrous material. The inner conical refining blade 2 or any of the first bars 200 of the inner conical refining blade 2 extends further along the symmetry axis 6, in the direction of the tapering of the inner 2 and outer 3 conical refining blades, than the outer conical refining blade 3 or any of the second bars 300 of the outer conical refining blade 3. 包括可相对旋转的内圆锥形精磨叶片2和外圆锥形精磨叶片3的精磨机。精磨叶片2、3绕对称轴线6同轴地布置并且分别设有用于研磨纤维物料的第棒条200和第二棒条300。内圆锥形精磨叶片2或内圆锥形精磨叶片2的任第棒条200比外圆锥形精磨叶片3或外圆锥形精磨叶片3的任第二棒条300沿对称轴线6在内圆锥形精磨叶片2和外圆锥形精磨叶片3的锥化方向上延伸更远。