Method and apparatus for mechanical defibration of wood
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 26, 2010
Issued Date -
N/A
app pub date -
Jun 5, 2006
filing date -
Jun 3, 2005
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The present invention provides a novel method and apparatus for producing pulp from lignocellulosic raw material, such as wood or annual or perennial plants, by mechanical defibration. According to the invention, fibers are peeled from the wood by means of grinding grits arranged on a defibration surface, wherein at least 90% of the protrusion difference distribution between adjacent or neighboring grits on the surface belongs to a value region maximally as wide as the average grit diameter. By means of the invention, a reduction in specific energy consumption of up to 50% or even more can be obtained.
First Claim
Other Claims data not available
