Title:
FINE EXPLOSION SPLINTER OBTAINED BY WATER VAPOR EXPLOSION OF WOODY MATERIAL, WOODY BUILDING MATERIAL USING FINE EXPLOSION SPLINTER AS AGGREGATE AND MANUFACTURE THEREOF AND DEVICE FOR MANUFACTURING THIS WOODY BUILDING MATERIAL
Document Type and Number:
Japanese Patent JP3401554
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To fully use a small dia. wood, an end part of wood or waster building lumber without wastefully discarding it by first adjusting the moisture content of a woody material, then pressurizing it at a high temperature for a specified time and instantaneously releasing pressure to generate a steam explosion in the woody material and further, partially or entirely splitting a fibrous bond along fibers.
SOLUTION: Green wood 1, 2, 3 or an end part of wood or waste building lumber 5 are used as a woody material. This woody material is cut using a rotary saw to obtain a woody material of specified length 6 and the moisture content of the material is adjusted using a water spray means 7 or a water soaking means 8. Next, the pieces of the woody material of specified length 6 are piled up in an enclosure 9a in such a manner that the pieces of the woody material 6 are in parallel with each other in the longitudinal direction. Further, the enclosure 9a is stored in an explosion device 9, and the woody material 6 is thermally pressurized by a hot press 9b. After this procedure, pressure is instantaneously released to generate a stream explosion in the piled pieces of the woody material to obtain rupture splinters 10. In this case, the fibrous bond is partially or entirely split along fibers depending upon thermal pressurizing conditions to form a desired shape such as powder 10a, cottonlike 10b, stringlike 10c or fine cotton sticklike 10d.
More Like This:
| WO/2003/031129 | DEVICE AND METHOD FOR SPLITTING WOOD |
Inventors:
Takeshi Fujii
Application Number:
JP5497999A
Publication Date:
April 28, 2003
Filing Date:
March 03, 1999
Export Citation:
Assignee:
Forestry Research Institute
International Classes:
B27L7/00; B27L11/08; B27N1/00; B27N3/02; B28B1/52; B28B17/02; C04B18/26; D01B1/50; D21B1/36; D21J1/00; E04C2/16; (IPC1-7): B27L11/08; B27N3/02
Domestic Patent References:
| JP1071341A |
Attorney, Agent or Firm:
Koichi Ouchi
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