DE3501960C2 - - Google Patents

Info

Publication number
DE3501960C2
DE3501960C2 DE3501960A DE3501960A DE3501960C2 DE 3501960 C2 DE3501960 C2 DE 3501960C2 DE 3501960 A DE3501960 A DE 3501960A DE 3501960 A DE3501960 A DE 3501960A DE 3501960 C2 DE3501960 C2 DE 3501960C2
Authority
DE
Germany
Prior art keywords
wood chip
sieve
wood
chip cleaner
cleaner according
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
DE3501960A
Other languages
German (de)
Other versions
DE3501960A1 (en
Inventor
Pentti Dipl.-Ing. Raura
Olavi Valko Fi Paajanen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Repola Oy
Original Assignee
Rauma Repola Oy
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
Priority to FI840035A priority Critical patent/FI68989C/en
Application filed by Rauma Repola Oy filed Critical Rauma Repola Oy
Priority to DE19853501960 priority patent/DE3501960A1/en
Publication of DE3501960A1 publication Critical patent/DE3501960A1/en
Application granted granted Critical
Publication of DE3501960C2 publication Critical patent/DE3501960C2/de
Granted legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B13/00Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
    • B07B13/10Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices using momentum effects
    • B07B13/11Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices using momentum effects involving travel of particles over surfaces which separate by centrifugal force or by relative friction between particles and such surfaces, e.g. helical sorters
    • B07B13/113Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices using momentum effects involving travel of particles over surfaces which separate by centrifugal force or by relative friction between particles and such surfaces, e.g. helical sorters shaking tables
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/28Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
    • B07B1/38Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens oscillating in a circular arc in their own plane; Plansifters
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B15/00Combinations of apparatus for separating solids from solids by dry methods applicable to bulk material, e.g. loose articles fit to be handled like bulk material
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21BFIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00Fibrous raw materials or their mechanical treatment
    • D21B1/02Pretreatment of the raw materials by chemical or physical means
    • D21B1/023Cleaning wood chips or other raw materials

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)

Description

Die Erfindung betrifft einen Hackschnitzelreiniger nach dem Oberbegriff des Anspruchs 1.The invention relates to a wood chip cleaner the preamble of claim 1.

In bekannten Hackschnitzelreinigern dieser Art erfolgt das Anreichern des schweren Materials durch Rütteln und Luft­ einblasen oder Einblasen von Wasser. Hierbei ist ein beträchtlicher Energieaufwand erforderlich. Bei Verwendung von Wasser ergibt sich ein Anstieg der Hackschnitzelfeuchte, wobei zudem das Wasser gereinigt werden muß.This is done in known wood chip cleaners of this type Enrich the heavy material by shaking and air blowing or blowing water. Here is a considerable energy expenditure required. Using of water there is an increase in the wood chip moisture, the water must also be cleaned.

Der Erfindung liegt die Aufgabe zugrunde, einen Hackschnitzel­ reiniger der eingangs angegebenen Art so auszubilden, daß er mit einem geringeren Energieaufwand betrieben und auf die Verwendung von Wasser verzichtet werden kann.The invention has for its object a wood chips to train cleaners of the type specified at the beginning, that he operated with less energy and the use of water can be dispensed with.

Diese Aufgabe wird durch die Merkmale im Kennzeichen des Anspruchs 1 gelöst. Hierdurch kann das in dem Hackgut vor­ handene schwere Material äußerst effektiv mit geringem Energieaufwand angereichtert und aus dem reinen Hackschnitzel­ strom entfernt werden.This task is characterized by the characteristics of the Claim 1 solved. This can be done in the wood chips existing heavy material extremely effective with little Energy expenditure enriched and from the pure wood chips electricity are removed.

Die Erfindung wird nachfolgend anhand der Zeichnung bei­ spielsweise näher erläutert. Es zeigtThe invention is described below with reference to the drawing explained in more detail, for example. It shows

Fig. 1 das Hackschnitzelsieb in Seitenansicht, Fig. 1, the Hackschnitzelsieb in side view,

Fig. 2 das Hackschnitzelsieb in einer Draufsicht, und Fig. 2, the wood chip screen in a plan view, and

Fig. 3 einen Schnitt längs der Linie III-III in Fig. 2. Fig. 3 is a section along the line III-III in Fig. 2.

Der Hackschnitzelreiniger besteht aus einem kastenartigen Hauptsieb 1 mit Siebebenen 2, 3, wobei das Großsieben des Hackgutes durch eine kreisförmige Siebbewegung in der Horizontalebene stattfindet. Anschließend an das Hauptsieb folgt ein Schwermaterialanreicherer 4, in dem das schwere Material angereichtert und von dem reinen Hackschnitzelstrom getrennt wird. Der Schwermaterialanreicherer 4 stellt eine mit dem Hauptsieb in der Horizontalebene mitbewegte Ebene dar, in deren einer hinteren Ecke eine Abscheide­ öffnung 7 für das schwere Material angeordnet ist. In dieser Ebene sind vor einer querverlaufenden Schwelle 8 Leisten 6 so schrägliegend angeordnet, daß sie das schwere Material zu der Abscheideöffnung 7 leiten, während sich das reine Hackschnitzelmaterial über die Schwelle zur Austrittsöffnung 9 des Hackschnitzelsiebs bewegt.The wood chip cleaner consists of a box-like main sieve 1 with sieving levels 2, 3 , the bulk sieving of the wood chips taking place by means of a circular sieving movement in the horizontal plane. Following the main sieve is a heavy material enrichment device 4 , in which the heavy material is enriched and separated from the pure stream of wood chips. The heavy material enricher 4 represents a plane moving with the main sieve in the horizontal plane, in the rear corner of which a separating opening 7 for the heavy material is arranged. In this plane 8 strips 6 are arranged obliquely in front of a transverse threshold that they guide the heavy material to the separating opening 7 , while the pure wood chip material moves over the threshold to the outlet opening 9 of the wood chip screen.

Dadurch, daß das vom Hauptsieb 1 in den Anreicherer 4 gelangende Hackgut sowohl durch Siebbewegung in der Hori­ zontalebene als auch die Wirkung der Leisten 6 in eine Rüttelbewegung versetzt wird, erfolgt eine sehr effektive Anreicherung des schweren Materials aus dem Hackschnitzelstrom. Das schwere Material kommt an der Schwelle 8 zum Stillstand und wird mit Hilfe der schrägen Leisten 6 zur Abscheideöffnung 7 geleitet. Der reine Hackschnitzelstrom bewegt sich über die Schwelle 8 hin­ weg und von dort weiter zur Austrittsöffnung 9 des Hack­ schnitzelsiebs.Characterized in that the wood chips coming from the main sieve 1 into the enricher 4 are moved both by sieve movement in the horizontal plane and the effect of the strips 6 in a shaking movement, a very effective enrichment of the heavy material from the wood chip stream takes place. The heavy material comes to a standstill on the threshold 8 and is guided to the separation opening 7 with the aid of the inclined strips 6 . The pure stream of wood chips moves away over the threshold 8 and from there further to the outlet opening 9 of the wood chip screen.

Mit 10 ist ein Rüttler bezeichnet, der zur Erhöhung der Anreicherungswirkung die Kreisbewegung des Anreicherers 4 in der Hoirzontalebene durch eine vertikale Rüttelbewegung überlagert.With 10 a vibrator is designated, which overlaps the circular movement of the enrichment 4 in the horizontal plane to increase the enrichment effect by a vertical shaking movement.

Claims (6)

1. Hackschnitzelreiniger, bestehend aus einem kastenartigen Hauptsieb (1) mit Siebebenen (2, 3), auf denen das Sieben und Vorreinigen des Hackguts mittels einer kreisförmigen Siebbewegung in der Horizontalebene stattfindet, und nach welchem Hauptsieb nachfolgend ein Schwermaterialanreicherer (4) vorgesehen ist, in dem der schwere Anteil angereichert und vom reinen Hackschnitzelstrom getrennt wird, dadurch gekennzeichnet, daß der Schwermaterialanreicherer eine mit dem Hauptsieb in der Horizontalebene bewegte Ebene ist, die schrägliegende Leisten (6), die bei Kreisbewegung des Siebs im Uhrzeigersinn in einem Winkel nach links zur Speiserichtung des Siebs stehen und zu einer in der linken hinteren Ecke des Anreicherers (4) angeordneten Abscheideöffnung (7) für das schwere Material führen, und eine querliegende Schwelle (8) trägt, über die hinweg der reine Hackschnitzelstrom zu einer Austrittsöffnung (9) des Hackschnitzelsiebs gelangt. 1. Wood chip cleaner, consisting of a box-like main sieve ( 1 ) with sieve levels ( 2, 3 ), on which the sieving and pre-cleaning of the wood chips takes place by means of a circular sieve movement in the horizontal plane, and after which main sieve a heavy material enricher ( 4 ) is subsequently provided, in which the heavy portion is enriched and separated from the pure wood chips stream, characterized in that the heavy material enrichment is a plane moved with the main screen in the horizontal plane, the inclined ledges ( 6 ) which, when the screen moves in a clockwise direction, at an angle to the left to Feed direction of the sieve and lead to a in the left rear corner of the enrichment ( 4 ) arranged separation opening ( 7 ) for the heavy material, and carries a transverse threshold ( 8 ) over which the pure stream of wood chips to an outlet ( 9 ) of the Wood chip sieve arrives. 2. Hackschnitzelreiniger nach Anspruch 1, dadurch gekennzeichnet, daß der Durchmesser der Kreisbewegung, die die Ebene des Schwermaterialanreicherers beschreibt, größer als der Abstand zwischen zwei nebeneinanderliegenden schrägen Leisten (6) ist.2. Wood chip cleaner according to claim 1, characterized in that the diameter of the circular movement, which describes the plane of the heavy material accumulator, is greater than the distance between two adjacent sloping strips ( 6 ). 3. Hackschnitzelreiniger nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß bei Kreisbewegung des Sibes im Uhrzeigersinn die Leisten (6) in einem Winkel von 20° bis 70° nach links zur Speiserichtung des Siebs stehen.3. Wood chip cleaner according to claim 1 or 2, characterized in that the bars ( 6 ) are at an angle of 20 ° to 70 ° to the left to the feeding direction of the screen when the sib is moved clockwise. 4. Hackschnitzelreiniger nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Höhe der Leisten (6) geringer ist als die Hälfte der größten Dimension der Hackschnitzel.4. Wood chip cleaner according to one of claims 1 to 3, characterized in that the height of the strips ( 6 ) is less than half the largest dimension of the wood chips. 5. Hackschnitzelreiniger nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Höhe der Schwelle (8) größer als die größte Dimension der Hackschnitzel ist.5. Wood chip cleaner according to one of claims 1 to 4, characterized in that the height of the threshold ( 8 ) is greater than the largest dimension of the wood chips. 6. Hackschnitzelreiniger nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß zwecks Erhöhung der Anreichungswirkung die Kreis­ bewegung des Anreicherers in der Horizontalebene durch eine vertikale Rüttelbewegung mit Hilfe eines Rüttlers (10) überlagert wird.6. Wood chip cleaner according to one of claims 1 to 5, characterized in that in order to increase the enrichment effect, the circular movement of the enricher in the horizontal plane is superimposed by a vertical shaking movement with the aid of a shaker ( 10 ).
DE19853501960 1984-01-05 1985-01-22 Woodchip cleaner Granted DE3501960A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FI840035A FI68989C (en) 1984-01-05 1984-01-05 FLISRENGOERARE
DE19853501960 DE3501960A1 (en) 1984-01-05 1985-01-22 Woodchip cleaner

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI840035A FI68989C (en) 1984-01-05 1984-01-05 FLISRENGOERARE
DE19853501960 DE3501960A1 (en) 1984-01-05 1985-01-22 Woodchip cleaner

Publications (2)

Publication Number Publication Date
DE3501960A1 DE3501960A1 (en) 1986-08-14
DE3501960C2 true DE3501960C2 (en) 1988-06-16

Family

ID=37834116

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19853501960 Granted DE3501960A1 (en) 1984-01-05 1985-01-22 Woodchip cleaner

Country Status (2)

Country Link
DE (1) DE3501960A1 (en)
FI (1) FI68989C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1782893A2 (en) 2005-11-02 2007-05-09 Manfred Dr. Ottow Sorting of wood chips

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT369890B (en) * 1981-07-27 1983-02-10 Voest Alpine Ag DEVICE FOR LOADING WALKING GRIDS WITH GREEN PELLETS
AT369891B (en) * 1981-07-27 1983-02-10 Voest Alpine Ag DEVICE FOR LOADING WALKING GRIDS WITH GREEN PELLETS

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1782893A2 (en) 2005-11-02 2007-05-09 Manfred Dr. Ottow Sorting of wood chips
US7523831B2 (en) 2005-11-02 2009-04-28 Manfred Ottow Classification of splinters and wood chips

Also Published As

Publication number Publication date
FI68989C (en) 1985-12-10
DE3501960A1 (en) 1986-08-14
FI68989B (en) 1985-08-30
FI840035A0 (en) 1984-01-05
FI840035A (en) 1985-07-06

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee