Title:
【発明の名称】繊維材料の処理方法および処理装置
Document Type and Number:
Japanese Patent JP2001512366
Kind Code:
A
Abstract:
Methods and apparatus are disclosed for refining lignocellulosic material between a pair of relatively rotary refining elements forming an annular outer refining zone and a central feed zone. The method includes feeding the lignocellulosic material to the central feed zone, accelerating the lignocellulosic material through the central feed zone towards the annular outer refining zone without lignocellulosic material build up in the central feed zone and substantially without working the lignocellulosic material in the central feed zone, the density of the lignocellulosic material in the central feed zone being a maximum of about 10 kg/m3, and mechanically working the lignocellulosic material in the annular outer refining zone, and in which the relatively rotary refining elements have a relative speed of greater than about 50 m/sec.
Inventors:
Johansson, Woola
Svedberg, Peter
Danielson, Uwe
Svedberg, Peter
Danielson, Uwe
Application Number:
JP53653498A
Publication Date:
August 21, 2001
Filing Date:
February 03, 1998
Export Citation:
Assignee:
Barmet, Huay Verteck, Actie Evorague
International Classes:
B02C7/12; B02C7/11; D21B1/14; D21D1/30; (IPC1-7): B02C7/12; D21B1/14; D21D1/30
Attorney, Agent or Firm:
Yoshio Kawaguchi (2 outside)