DE3501960A1 - Woodchip cleaner - Google Patents

Woodchip cleaner

Info

Publication number
DE3501960A1
DE3501960A1 DE19853501960 DE3501960A DE3501960A1 DE 3501960 A1 DE3501960 A1 DE 3501960A1 DE 19853501960 DE19853501960 DE 19853501960 DE 3501960 A DE3501960 A DE 3501960A DE 3501960 A1 DE3501960 A1 DE 3501960A1
Authority
DE
Germany
Prior art keywords
wood chip
sieve
heavy material
chip cleaner
horizontal plane
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.)
Granted
Application number
DE19853501960
Other languages
German (de)
Other versions
DE3501960C2 (en
Inventor
Olavi Paajanen
Pentti Dipl Ing Raura
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

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING 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
    • B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
    • B07B13/10—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices using momentum effects
    • B07B13/11—Grading 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
    • B07B13/113—Grading 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING 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
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
    • B07B1/38—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens oscillating in a circular arc in their own plane; Plansifters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING 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
    • B07B15/00—Combinations 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
    • 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
    • D21B1/023—Cleaning 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)

Abstract

A woodchip cleaner consisting of a box-like main screen (1) with screen levels (2, 3) on which the screening and precleaning of the chip material takes place by means of a circular screen motion in the horizontal plane. After the main screen there follows a heavy material concentrator (4) in which the heavy component is concentrated and separated from the pure woodchip stream. The heavy material concentrator is a plane which is moved with the main screen virtually in the horizontal plane, bears oblique bars (6) and a sill (8) lying mainly transversely and in a rear corner of which a separating opening (7) for the heavy material is provided. <IMAGE>

Description

HackschnitzelreinigerWood chip cleaner

Die vorliegende Erfindung betrifft einen Hackschnitzelreiniger, bestehend aus einem kastenartihen Hauptsieb mit Siebebenen, auf denen das Sieben und Vorreinigen der Hackschnitzel vermöge einer kreisförmigen Siebebewegung in der Horizontalebene stattfindet, und nach welchem Hauptsieb nachfolgend ein Schwermaterialanreicher vorgesehen ist, in dem der schwere Bestandteil angereichert und von dem reinen Hackschnitzelstrom getrennt wird.The present invention relates to a wood chip cleaner, consisting from a box-like main sieve with sieve levels on which the sieving and pre-cleaning the wood chips by virtue of a circular sieve movement in the horizontal plane takes place, and after which main sieve is followed by a heavy material enrichment is provided in which the heavy component is enriched and from the pure wood chip stream is separated.

In zuvor bekannten Hackschnitzelreinigern dieser Art erfolgt das Anreichern des schweren Materials mit Hilfe von Rdttel- und Luitblasung oder von Wasser. Die Erfindung bezweckt das Hervorbringen eines Hackschnitzelreinigers von neuem Typ, in dem die viel Energie erfordernde Luftblasung nicht benötigt wird und zugleich auch die Nachteile des Waschens mit Wasser vermieden werden, wie z.B. der Anstieg der Hackschnitzelfeuchte und das Reinigen des Wassers.Enrichment takes place in previously known wood chip cleaners of this type of the heavy material with the help of round and air blown or water. the Invention aims to produce a new type of wood chip cleaner, in which the air blowing, which requires a lot of energy, is not needed and at the same time also avoid the disadvantages of washing with water, such as the rise the wood chip moisture and the cleaning of the water.

Der erfindungsgemäße Reiniger ist dadurch gekennzeichnet, daß der Schwermaterialanreicher eine mit dem Hauptsieb nahezu in der Horizontalebene mitbewegte Ebene mit schragliegenden Leisten und einer in der Hauptsache querliegenden Schwelle und mit einer Abscheideöffnung fQr das schwere Material in der einen hinteren Ecke ist und daß der reine Hackschnitzelstrom angeordnet ist, dber die Schwelle in die Austrittsöffnung des Hackschnitzelsiebs zu gehen. Mit Hilfe der Erfindung läßt sich das in dem Hackgut vorhandene schwere Material somit äußerst effektiv mit geringer Energie anreichern und aus dem reinen Hackschnitzelstrom entfernen. Der erfindungsgemäße Reiniger ist ferner dadurch gekennzeichnet, daß zwecks Erhöhung der Anreichwirkung zu der in der Horizontalebene erfolgenden Kreisbewegung des Anreichers eine vertikale Rüttelbewegung mit Hilfe eines Rüttlers hinzugefAgt ist.The cleaner according to the invention is characterized in that the Heavy material accumulator one moved with the main screen almost in the horizontal plane Level with sloping ledges and a mainly transverse threshold and with a separation opening for the heavy material in one rear corner is and that the pure wood chips stream is arranged, over the threshold into the To go to the outlet of the wood chip sieve. With the help of the invention can the heavy material present in the wood chips is therefore extremely effective with less Enrich energy and remove it from the pure stream of wood chips. The inventive Cleaner is also characterized in that, in order to increase the enrichment effect to the circular movement of the enricher taking place in the horizontal plane a vertical one Shaking movement is added with the help of a shaker.

Die Erfindung wird im folgenden mit Hilfe eines Beispiels mit Hinweis auf die beiliegende Zeichnung beschrieben, worin Fig. 1 das Hackschnitzelsieb in der Seitenansicht darstellt.The invention is cited below with the aid of an example described on the accompanying drawing, wherein Fig. 1 the chip screen in side view.

Fig. 2 stellt das Hackschnltzellieb von oben gesehen dar.Fig. 2 shows the Hackschnltzellieb seen from above.

Fig. 3 zeigt den längs der Linie II 1-111 in Fig. 2 geführten Schnitt.FIG. 3 shows the section taken along line II 1-111 in FIG.

Der Hackschnitzelreiniger besteht aus einem kastenartigen Hauptsieb 1 mit den Siebebenen 2,3, wo das Grobsieben des Hackguts vermöge einer kreisförmigen Siebebewegung in der Horiontalebene stattfindet. Anschließend an das Hauptsieb folgt ein Schwermaterialanreicher 4, wo das schwere Material angereichert und von dem reinen Hackschnitzelstrom getrennt wird. Der Schwermaterialanreicher 4 ist eine mit dem Hauptsieb nahezu in der Horizontalebene mitbewegte Ebene, in deren einer hinteren Ecke eine Abscheidebffnung 7 für das schwere Material angeordnet ist, und in dieser Ebene sind vor einer querverlaufenden Schwelle 8 Leisten 6 so schrägliegend angeordnet, daß sie bestrebt sind, das schwere Material zu der Abscheideöffnung 7 zu leiten, während das reine Hackschnitzelmaterial über die Schwelle zur Austrittsöffnung 9 des Hackschnitzelslebs geht.The wood chip cleaner consists of a box-like main sieve 1 with the sieve levels 2,3, where the coarse sieving of the wood chips by means of a circular Sieve movement takes place in the Horion valley level. This is followed by the main sieve a heavy material enricher 4, where the heavy material is enriched and from which pure wood chip stream is separated. The heavy material accumulator 4 is one with the main screen moving almost in the horizontal plane plane, in one of which rear corner a separation opening 7 is arranged for the heavy material, and in this plane 8 strips 6 are so inclined in front of a transverse threshold arranged that they tend to the heavy material to the separation opening 7, while the pure wood chip material over the threshold to the outlet opening 9 of the wood chip liver goes.

Indem das vom Hauptsieb 1 in den Anreicher 4 kommende Hackgut sowohl in eine Siebebewegung in der Horizontalebene als auch fernerhin durch Wirkung der Leisten 6 in eine Rüttelbewegung versetzt wird, erfolgt 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 geht Uber die Schwelle 8 hinweg und von dort weiter zur Austrittsoffnung 9 des Hackschnitzelsiebs.By the wood chips coming from the main sieve 1 in the enrichment 4 both in a sieve movement in the horizontal plane as well as furthermore by the action of Last 6 is set in a shaking movement, there is very effective enrichment of the heavy material from the wood chip stream. The heavy material arrives the threshold 8 comes to a standstill and becomes a separation opening with the help of the inclined strips 6 7 headed. The pure wood chip stream goes over the threshold 8 and from there further to the outlet opening 9 of the wood chip sieve.

Claims (6)

Hackschnitzelreiniger ================ P A T E N TA N S P R Ü C H E = = = = = = = = = = = = = = = = 1. Hackschnitzelreiniger, bestehend aus einem kastenartigen Hauptsieb (1) mit Siebebenen (2,3), auf denen das Sieben und Vorreinigen des Hackguts vermöge einer kreisförmigen Siebebewegung in der Horizontalebene stattfindet, und nach welchem Hauptsieb nachfolgend ein SchwermaterialBnreicher (4) vorgesehen ist, in dem der schwere Bestandteil angereichert und vorn reinen Hackschnitzelstrorn getrennt wird, dadurch gekennzeichnet, daB der Schwerrnaterialanrelcher eine mit dem Hauptsieb nahezu in der Horizontalebene bewegte Ebene ist, die schrägliegende Leisten t6) und eine in der Hauptsache quer 1 legende Schwelle (8) trägt und in deren einer hinteren Ecke eine Abscheideöffnung (7) *Ur das schwere Material vorgesehen ist, und daB der reine Hackschnitzelstrom angeordnet ist, uber die querliegende Schwelle (8) des Anrelchers hinweg zur Austrittsoffnung (9) des Hackschnitzelsiebs zu gehen. Wood chip cleaner ================ P A T E N TA N S P R Ü C H E = = = = = = = = = = = = = = = = 1. Wood chip cleaner, consisting of one box-like main sieve (1) with sieve levels (2,3), on which the sieving and pre-cleaning of the wood chips by means of a circular sieve movement in the horizontal plane, and after which main screen a heavy material collector (4) is subsequently provided is, in which the heavy component is enriched and in front pure wood chip flow is separated, characterized in that the heavy material linker has a the main screen is moving almost in the horizontal plane, the inclined plane Strips t6) and a mainly transverse 1-laying threshold (8) and in one rear corner of which is provided with a separation opening (7) * Ur the heavy material and that the pure woodchip flow is arranged over the transverse Threshold (8) of the Anrelcher away to the outlet opening (9) of the wood chip sieve to go. 2. Hackschnitzelreiniger gemäß Anspruch 1, dadurch gekennzeichnet, daß der Durchmesser der Kreisbewegung, die die Ebene des Schwermaterial anrei chers beschreibt, größer als der Abstand zwischen zwe nebeneinanderliegenden schrägen Leisten (6) ist.2. Wood chip cleaner according to claim 1, characterized in that that the diameter of the circular motion that enriches the plane of the heavy material describes, greater than the distance between two adjacent slopes Last (6) is. 3. Hackschnitzelreiniger gemäß Anspruch 1 oder 2, dadurch gekennzeichnet, daß bei Kreisbewegung des Siebs im Uhrzeigersinn die Leisten (6) unter einem Winkel von 20 bis 70" nach links von der Speiserichtung des Siebs stehen und die Abscheideö++nung (7) in der linken Ecke des Anreichers liegt.3. Wood chip cleaner according to claim 1 or 2, characterized in that that when the sieve moves in a clockwise direction, the strips (6) are at an angle from 20 to 70 "to the left of the feeding direction of the sieve and the separation opening (7) is in the left corner of the enricher. 4. Hackschnitzelreiniger gemäß irgendeinem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Höhe der Leisten (6) geringer als die Hälfte der größten Dimension der Hackschnitzel ist.4. Wood chip cleaner according to any one of claims 1 to 3, characterized in that the height of the strips (6) is less than half of the largest dimension of the wood chips. 5. Hackschnitzelreiniger gemäß irgendeinem 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 any one of claims 1 to 4, characterized in that the height of the threshold (8) is greater than the largest dimension the wood chips are. 6. Hackschnitzelreiniger gemäß irgendeinem der Anspruche 1 bis 5, dadurch gekennzeichnet, daß zwecks Erhöhung der Anreichwirkung zu der Kreisbewegung des Anreichers in der Horizontalebene eine vertikale Rüttelbewegung mit Hilfe eines Rüttlers (10) hinzugefügt ist.6. Wood chip cleaner according to any one of claims 1 to 5, characterized in that in order to increase the enrichment effect to the circular motion of the enricher in the horizontal plane a vertical shaking movement with the help of a Vibrator (10) is added.
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 true DE3501960A1 (en) 1986-08-14
DE3501960C2 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)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005052620A1 (en) 2005-11-02 2007-05-03 Ottow, Manfred, Dr.-Ing. Classifying method for mixture of wood shavings and wood chips, involves introduction of mixture atop centrifugal classifying unit and mixture falls into classifying chamber

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4457840A (en) * 1981-07-27 1984-07-03 Voest-Alpine Aktiengesellschaft Apparatus for delivering a stream of green pellets
US4465592A (en) * 1981-07-27 1984-08-14 Voest-Alpine Aktiengesellschaft Vibrating conveyor for delivering a stream of green pellets of even thickness

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4457840A (en) * 1981-07-27 1984-07-03 Voest-Alpine Aktiengesellschaft Apparatus for delivering a stream of green pellets
US4465592A (en) * 1981-07-27 1984-08-14 Voest-Alpine Aktiengesellschaft Vibrating conveyor for delivering a stream of green pellets of even thickness

Also Published As

Publication number Publication date
FI840035A0 (en) 1984-01-05
FI68989C (en) 1985-12-10
DE3501960C2 (en) 1988-06-16
FI840035A (en) 1985-07-06
FI68989B (en) 1985-08-30

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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