EP 0425630 B1 19941019 - GRINDING EQUIPMENT FOR A WIDE ANGLE CONICAL REFINER.
Title (en)
GRINDING EQUIPMENT FOR A WIDE ANGLE CONICAL REFINER.
Title (de)
MAHLGARNITUR EINES KEGELREFINERS.
Title (fr)
GARNITURE DE TRITURAGE D'UN RAFFINEUR CONIQUE.
Publication
Application
Priority
- DE 3916393 A 19890519
- EP 9000811 W 19900518
Abstract (en)
[origin: US5354005A] PCT No. PCT/EP90/00811 Sec. 371 Date Mar. 18, 1991 Sec. 102(e) Date Mar. 18, 1991 PCT Filed May 18, 1990 PCT Pub. No. WO90/14464 PCT Pub. Date Nov. 29, 1990.Grinding equipment for a Jordan refiner for grinding paper pulp having a rotating part in form of a truncated cone and a stationary part in the form of a hollow truncated cone, on which bar-shaped knives are arranged at predetermined angles with respect to the conical shell generating lines. To improve the grinding equipment of the refiner, a pre-grinding zone is arranged upstream of one or more fine grinding zones whose configuration and arrangement are adapted to the state and desired development of the fibers in the grinding stock flowing through the grinding equipment.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
D21D 1/22 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE ES FR GB IT LI NL SE
DOCDB simple family (publication)
US 5354005 A 19941011; AT E113096 T1 19941115; CA 2033073 A1 19901120; DE 3916393 A1 19901122; DE 59007501 D1 19941124; EP 0425630 A1 19910508; EP 0425630 B1 19941019; ES 2063352 T3 19950101; FI 910241 A0 19910116; FI 97399 B 19960830; FI 97399 C 19961210; JP H04501145 A 19920227; WO 9014464 A1 19901129
DOCDB simple family (application)
US 63511491 A 19910318; AT 90907039 T 19900518; CA 2033073 A 19900518; DE 3916393 A 19890519; DE 59007501 T 19900518; EP 9000811 W 19900518; EP 90907039 A 19900518; ES 90907039 T 19900518; FI 910241 A 19910116; JP 50736590 A 19900518