Title:
IMPROVED METHOD AND DEVICE FOR FILTERING LIQUID IN PULP MILL
Document Type and Number:
Japanese Patent JP2002038389
Kind Code:
A
Abstract:
To provide a method and a device for efficiently filtering fine undesired materials in a liquid stream.
A fiber mat is formed on a screen cylinder of a pressurized fiber filtering device used to filter particles from a liquid stream. The fiber mat is a fine particle filter to remove small particles from the liquid stream. The fiber mat is formed by injecting cellulosic fibers into the liquid stream flowing into the fiber filtering device. These fibers collect on the screen cylinder as the liquid flows through the cylinder. The collection of fibers forms the fine filtering mat.
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Inventors:
PHILLIPS JOSEPH R
Application Number:
JP2001170514A
Publication Date:
February 06, 2002
Filing Date:
June 06, 2001
Export Citation:
Assignee:
ANDRITZ AHLSTROM INC
International Classes:
B01D29/60; B01D29/25; B01D29/90; B01D33/06; B01D33/11; B01D37/02; D21C9/06; D21D5/02; (IPC1-7): D21C9/06; B01D29/25; B01D29/60; B01D29/90; B01D33/06; B01D37/02; D21D5/02
Attorney, Agent or Firm:
Nakamura Shizuo