Title:
DEFLECTION COMPENSATING REFINER PLATE SEGMENT AND METHOD
Document Type and Number:
WIPO Patent Application WO2002053830
Kind Code:
A3
Abstract:
A segment (134) for a rotary disk refiner (32) that has a refining surface (136) offset to compensate for deflection of the segment that occurs during refiner operation. In one preferred embodiment, the refining surface overlying each segment overhang (138) is offset to compensate for deflection that occurs in the region of the overhang during refiner operation. Other regions of the refining surface can also be offset to compensate for deflection. In another preferred embodiment, a mount (90') that extends outwardly from the backside of a segment has a hollow (162) therein to reduce segment mass to reduce refining surface deflection. In a method of making a deflection compensating segment, the location and magnitude of each region of deflection is analytically or experimentally determined and the refining surface is formed with a corresponding offset in each deflection region.
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Inventors:
JOHANSSON OLA M
Application Number:
PCT/US2002/000214
Publication Date:
September 26, 2002
Filing Date:
January 04, 2002
Export Citation:
Assignee:
J & L FIBER SERVICES INC (US)
International Classes:
B02C2/10; B02C7/12; (IPC1-7): B02C7/12; B02C2/10
Foreign References:
| US4005827A | 1977-02-01 | |||
| US4166584A | 1979-09-04 | |||
| US5425508A | 1995-06-20 | |||
| US4674689A | 1987-06-23 |
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