Title:
【発明の名称】排出流が相互に独立して制御されるデュアルゾーン式精製装置
Document Type and Number:
Japanese Patent JPH09501991
Kind Code:
A
Abstract:
In an apparatus (10,100,300,400) for refining a low consistency fibrous slurry, which includes a plurality of refining zones (38,40; 188,128; 324,334; 411,413) within a casing, the improvement comprises providing a unique discharge flow path from each refining zone to a respective unique discharge line (56,58; 130,142; 308,310; 411,413) out of the casing, and means (57,59; 141,143; 344,346; 432,434) for differentially adjusting the flow rate in each discharge line. In accordance with the preferred embodiment of the invention, a divider (42,132,340) is provided between the casing and the rotor member, thus dividing the discharge between the two refining gaps, into two separate flow streams. The first and second gaps are monitored in any conventional manner. Under operating conditions, the flow control valves are adjusted for combined flow from the refiner casing as required by the production demands. However, the relative positioning between the two valves is adjusted until the refining gap measurements show equal gaps (within a pre-established tolerance) in the two refining zones.
Inventors:
Russell El, Musselman
Application Number:
JP50771695A
Publication Date:
February 25, 1997
Filing Date:
August 23, 1994
Export Citation:
Assignee:
Andritz Sprout-Bauer, Inc.
International Classes:
D21D1/00; D21D1/22; D21D1/30; (IPC1-7): D21D1/22; D21D1/30
Attorney, Agent or Firm:
Akashi Masatake