NO943732L - Scraper for wood chip crusher - Google Patents

Scraper for wood chip crusher

Info

Publication number
NO943732L
NO943732L NO943732A NO943732A NO943732L NO 943732 L NO943732 L NO 943732L NO 943732 A NO943732 A NO 943732A NO 943732 A NO943732 A NO 943732A NO 943732 L NO943732 L NO 943732L
Authority
NO
Norway
Prior art keywords
rollers
scraper
pyramids
blade
teeth
Prior art date
Application number
NO943732A
Other languages
Norwegian (no)
Other versions
NO943732D0 (en
Inventor
Ravindran Nadarajah
Original Assignee
Beloit Technologies Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beloit Technologies Inc filed Critical Beloit Technologies Inc
Publication of NO943732D0 publication Critical patent/NO943732D0/en
Publication of NO943732L publication Critical patent/NO943732L/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
    • B27L7/00—Arrangements for splitting wood
    • B27L7/02—Arrangements for splitting wood using rotating members, e.g. rotating screws
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/02—Pretreatment of the raw materials by chemical or physical means
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C1/00—Pretreatment of the finely-divided materials before digesting
    • D21C1/10—Physical methods for facilitating impregnation

Abstract

Treflls-knuseanordning (20) som benytter motsatt roterende valser (24, 26) med overflater (32, 34) av matriser av pyramldeformede projeksjoner (38). Pyramidene (38) står på linje rundt omkretsen slik at gapet mellom de omkretsllggende radene av pyramider danner kontinuerlige V-formede spor (41) som omskriver valsene (24, 26). For å rense valsenes (24, 26) overflater (32, 34) og forhindre oppbygging av treflis (56) eller annet materiale mellom disse, benyttes en skraper (22). Skraperen (22) består av en støtteplate (60) montert stivt i forhold til rammen (30) på hvilken valsene (24, 26) er montert og et utsklftbart, segmentert blad (62) laget av 6 mm tykt rustfritt stål med høy slitasjebestandlghet. Kanten av bladet (62) har triangulære tenner (64) som passer inn mellom pyramlde- radene på valsenes (24, 26) overflater (32, 34). Bladets (62) tenner (64) står l en avstand på 1-2 mm fra pyramidenes (38) sider som danner valsenes (24, 26) overflater (32, 34). Tennene (64) forhindrer oppbygging av materialet mellom de pyramideformede projeksjonene (38).Triple crushing device (20) using opposite rotating rollers (24, 26) with surfaces (32, 34) of matrices of pyramidal shaped projections (38). The pyramids (38) are aligned around the circumference so that the gap between the circumferential rows of pyramids forms continuous V-shaped grooves (41) which circumscribe the rollers (24, 26). To clean the surfaces of the rollers (24, 26) and prevent the build-up of wood chips (56) or other material therebetween, a scraper (22) is used. The scraper (22) consists of a support plate (60) mounted rigidly relative to the frame (30) on which the rollers (24, 26) are mounted and a slidable, segmented blade (62) made of 6 mm thick stainless steel with high wear resistance. The edge of the blade (62) has triangular teeth (64) that fit between the pyramidal rows on the surfaces (32, 34) of the rollers (24, 26). The teeth (64) of the blade (62) stand at a distance of 1-2 mm from the sides of the pyramids (38) forming the surfaces (32, 34) of the rollers (24, 26). The teeth (64) prevent the build-up of the material between the pyramid-shaped projections (38).

NO943732A 1993-10-12 1994-10-05 Scraper for wood chip crusher NO943732L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13504293A 1993-10-12 1993-10-12

Publications (2)

Publication Number Publication Date
NO943732D0 NO943732D0 (en) 1994-10-05
NO943732L true NO943732L (en) 1995-04-18

Family

ID=22466238

Family Applications (1)

Application Number Title Priority Date Filing Date
NO943732A NO943732L (en) 1993-10-12 1994-10-05 Scraper for wood chip crusher

Country Status (5)

Country Link
JP (1) JPH07227811A (en)
CA (1) CA2129865A1 (en)
FI (1) FI944776A (en)
NO (1) NO943732L (en)
SE (1) SE9402842L (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5339341B2 (en) * 2008-08-13 2013-11-13 宜章 大木 Separation method of wood fibers as fiber solids by subcritical state

Also Published As

Publication number Publication date
NO943732D0 (en) 1994-10-05
FI944776A0 (en) 1994-10-11
FI944776A (en) 1995-04-13
JPH07227811A (en) 1995-08-29
CA2129865A1 (en) 1995-04-13
SE9402842D0 (en) 1994-08-25
SE9402842L (en) 1995-04-13

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