发明名称 PULP REFINING APPARATUS AND METHODS
摘要 In a cone rotor and companion shell stator refining arrangement or the like, or a pair of discs refining arrangement, each of the parts comprising the respective arrangements having radially extending refining edges in the form of spirals and wherein the spirals on one part extend in a direction opposite to that of the companion part, the improvement comprising: the spiral refining edges comprise at least one on each part and extend continuously and uninterruptedly, for example in the case of a disc, from a first point generally centrally of the disc to a second point adjacent or at the outer periphery of the disc or in the case of the cone and shell arrangement, longitudinally of the parts, i.e. substantially from end-to-end, the spirals making at least one revolutionary turn of the respective parts and the pitch of the spirals being arranged, one to another, such that a feather-like intersection is provided to impart a sliding-gripping-pinching action to material while being refined between the respective parts. Also, in a disc-like, cone-like or cylindrical surfaced member for a material refining apparatus having a work refining surface, including refining edges, the improvement comprising; arranging the refining edges whereby to provide a combination of spiral and/or radial and circumferential material refining edges on the work refining surface. In addition, methods based on the apparatus are disclosed.
申请公布号 DE3279968(D1) 申请公布日期 1989.11.09
申请号 DE19823279968 申请日期 1982.09.29
申请人 WEBSTER, DAVID RICHAN 发明人 WEBSTER, DAVID RICHAN
分类号 B02C19/20;B02C2/10;B02C7/12;B02C25/00;D21B1/14;(IPC1-7):B02C7/12 主分类号 B02C19/20
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