WO1988004578A1 - Appareil desintegrateur - Google Patents

Appareil desintegrateur Download PDF

Info

Publication number
WO1988004578A1
WO1988004578A1 PCT/SE1987/000606 SE8700606W WO8804578A1 WO 1988004578 A1 WO1988004578 A1 WO 1988004578A1 SE 8700606 W SE8700606 W SE 8700606W WO 8804578 A1 WO8804578 A1 WO 8804578A1
Authority
WO
WIPO (PCT)
Prior art keywords
shaft
holding
hopper
opening
longitudinal side
Prior art date
Application number
PCT/SE1987/000606
Other languages
English (en)
Inventor
Jan-Erik Nyberg
Holger Svensson
Original Assignee
Ab Sandarne Industrimaskiner
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 Ab Sandarne Industrimaskiner filed Critical Ab Sandarne Industrimaskiner
Publication of WO1988004578A1 publication Critical patent/WO1988004578A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details
    • B02C18/24—Drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/0084—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating garbage, waste or sewage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/14—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers
    • B02C18/145—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers with knives spaced axially and circumferentially on the periphery of a cylindrical rotor unit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details
    • B02C2018/164—Prevention of jamming and/or overload

Definitions

  • the invention relates to a disintegrating appara ⁇ tus comprising an infeed hopper adapted to receive material for disintegration, and a rotatable shaft which is mounted in an elongate opening in a frame or stand disposed under said hopper and which comprises a plurality of axially spaced-apart working means, e.g. knives or beaters, which are preferably helically arranged along the circumference of the shaft and which cooperate with holding-up means in the area of a front longitudinal side edge of said opening, said infeed hopper being hingedly connected to said frame so that, if necessary, the hopper can be swung up while to give access to the shaft.
  • Prior art technique e.g. knives or beaters
  • a disintegrating apparatus having a fixed infeed hopper but otherwise designed as described above, is known from SE patent specification 7606019-3.
  • An essen ⁇ tial advantage of this prior art apparatus is its ability to crush or disintegrate also very large and solid objects, such as logs, clumps of concrete, pieces of steel etc.
  • the apparatus is therefore especially suited for chipping or disintegrating demolition timber to be used as fuel.
  • it is however an annoying disadvantage that some kinds of objects may pass down the back way between the shaft and the rear longitudinal side edge of the shaft opening without being worked by the knives or beaters of the shaft.
  • the present invention aims at eliminating the above-mentioned disadvantages and providing a dis ⁇ integrating apparatus which in a reliable manner pro- prises a uniformly worked accept material of a given maximum fraction size and which is easily serviced.
  • the apparatus comprises, in addi ⁇ tion to said holding-up means, a second set of holding- up means mounted at the rear longitudinal side edge of the shaft opening and adapted to prevent large objects from passing down the back way between the shaft and the rear longitudinal side edge of the opening and to cooperate with said working means upon reversal of the direction of shaft rotation, so as to provide at least a certain degree of disintegration of material also in reversed operation.
  • the shaft is divided into at least three parts, viz. a central part comprising said working means, and two end parts engaging with bearings which are mounted in the frame in the area outside the short ends of the shaft opening, the central part of the shaft being dismountable without necessitating simul ⁇ taneous dismounting of said bearings and end parts, respectively.
  • SE patent specification 8001602-5 discloses a disintegrating apparatus in which the infeed hopper is hingedly connected to the associated frame so that, if necessary, the hopper can be swung up to uncover two cooperating shafts which are provided with working means in the form of knives or cutting edges.
  • the frame of this apparatus comprises no holding-up means or counter-blades, but the working means mesh in the area where the two parallel shafts touch each other.
  • Fig. 1 is a simplified end view of the inventive apparatus
  • Fig. 2 is an enlarged section of the same apparatus, some components being omitted
  • Fig. 3 is a perspective view of a central part of the working shaft
  • Figs 4 and 5 are two longitudinal sections of the shaft in its mounted and dismounted state, respectively.
  • a frame or stand is generally designated 1 and may in practice preferably be mounted on a mobile unit, e.g. a wheel-mounted vehicle, but can also be stationary, and an infeed hopper in the form of a pocket is designated 2.
  • a rotatable shaft 4 comprising a plurality of axially spaced-apart working means 5.
  • the working means are preferably helically distributed along the circumference of the shaft so as not to engage all at once with the material or objects to be disintegrated, but instead one by one.
  • the working means may preferably be crescent-shaped jaws 5 ' which are detach- ably connected to the shaft, e.g. via bolt joints, and which comprise cutting tools 5" which in turn are detachably mounted on the jaws.
  • the hopper 2 may have a length or axial extension which is at least twice the width of the hopper, said hopper comprising two longitudinal side walls 6, 7 and two end walls 8,9, of which at least the longitudinal side walls 6,7 preferably con ⁇ verge downwardly to the bottom end opening 3 of the hopper.
  • the longitudinal side edges defining the bottom end opening 3 are in Fig. 2 designated 10 and 11.
  • Fig. 2 also illustrates that in normal operation the shaft 4 is adapted to rotate in a clockwise direction as shown by the arrows.
  • holding-up means or holding-up tools 12 which, in practice, preferably have the shape of jaws detachably mounted on a frame member 1 ' which is pivoted to a shaft 13.
  • the individual holding-up jaw 12 is arranged in the space between neighbouring working means 5 on the shaft 4 and substantially fills the space there ⁇ between, such that the individual working means 5 will pass the holding-up means, with their side edges close to the holding-up means.
  • the holding- up means 12 are positioned with their outer end adjacent the periphery or circumference of the shaft 4, but by means of a preferably double-acting hydraulic cyl ⁇ inder 14, the frame member 1' and thus the holding-up means 12 may be pulled back from the normal position as shown to a position spaced therefrom. Consequently, the holding-up means can be set or adjusted to provide varying degrees of working depending on the varying types of material.
  • the frame member l 1 can, by means of the hydraulic cylinder 14, also be lowered to the position indicated by dash-dots lines, in which position the holding-up means are considerably spaced from the shaft 4 so as to facilitate the maintenance of the holding-up means.
  • the frame member 1 ' is spaced from the overlying hopper 2 via a thin dividing gap desig- nated 15.
  • the holding-up means 16 in the form of jaws or the like which are detachably mounted on the associ- ated frame member 1".
  • the holding-up means 16 of this second set are arranged in each of the axially spaced-apart spaces which are formed between neighbouring working means 5 on the shaft 4. This means that the material collected in the lower portion of the hopper 2 cannot get past the space between the circumference of the shaft 4 and the edge 11, unless the size of the material is less than the width of the individual gap between neighbouring holding-up means 16 and, respectively, the distance between the shaft and the edge 11.
  • the frame member 1" which is pivotable about a shaft 13' is rigidly connected or built together with the overlying hopper 2 and can, together with the hopper, be swung aside, viz. by means of at least one second double-acting hydraulic cylinder 17.
  • the hopper 2 is secured in its upright position indicated by full lines in Fig. 1, by means of a locking pin 18 which engages into with coinciding holes in a lug 19 on the frame 1 and in arms 20 ex ⁇ tending from the infeed hopper 2.
  • the hopper 2 can be swung up in its entirety to the position indicated by dash-dots lines in Fig. 1 , in which position the shaft 4 is uncovered and easily accessible.
  • a holding-down clamp 21 is connected with the wall 6 and has, in the embodiment illustrated, the shape of a stamp or punch which is built-in between two separate plates 6', 6" which jointly form one longitudinal side wall 6 of the hopper.
  • This stamp reciprocates in the plane of the wall by means of a third double-acting hydraulic cylinder 22 attached to the upper end of the wall plate 6".
  • the holding-down clamp 21 can be acti- vated by being first raised to an upper position in which the object or log can roll down to the area of the edge 10, whereupon the holding-down clamp is pressed down against the object by means of the cylinder 22, while providing a firm clamping of the object which can now be worked by the means 5.
  • Figs 4 and 5 which illu ⁇ strate the mounting of the shaft 4 in bearings 23, 24 disposed outside the end walls 8, 9 of the hopper 2, i.e. outside the opening 3 for the shaft 4.
  • the shaft 4 is divided into three parts, viz. a central part 4' comprising the working means 5, and two separate end parts 4" and 4'" which are conveniently mounted in the bearings 23, 24.
  • the end part 4" is connected to the central part 4' via a first flange joint com- prising the flanges 25, 26, while the end part 4'" is connected to the central part via a second flange joint comprising two flanges 27, 28.
  • the flange joint 25, 26 comprises a suitable amount of locking pins 29.
  • the flange joint 27, 28 comprises one or more puller screws 30.
  • the three shaft parts are normally held together by a connecting rod 31 whose one end is connec ⁇ ted to the end part 4" via a thread joint or the like, while the opposite end comprises a clamping member which in its entirety is designated 32 and by means of which the shaft parts 4 ' and 4'" can be forcibly clamped to the part 4".
  • the connecting rod can be removed as illustrated in Fig.
  • the disintegrating apparatus de ⁇ scribed above functions briefly in the following manner.
  • the objects e.g. demolition timber, which are to be crushed, are let freely into the hopper 2 which, because of its converging shape, concentrates the objects against the rotating shaft 4.
  • the working means 5 on the shaft 4 collect and convey the objects towards the holding-up means 12 against which the individual objects, such as boards, girders, clumps of concrete etc. are disintegrated by a combined shear ⁇ ing and crushing action, whereupon the treated, rela- tively fine accept material is allowed to fall down via the passage 33 between the shafts 13, 13' and is removed in an optional manner, for example by means of a belt conveyor.
  • the holding-down clamp 21 can be activated in the manner described above. Should it further happen that the working means 5 get stuck, the direction of shaft rotation may be reversed, whereby the rear edges of the respective working means will cooperate with the holding-up means 16 which, according to the invention, are arranged at the rear longitudinal side edge 11 of the opening 3 for the shaft. During such reversed operation, no objects other than very small ones can pass down into the quite narrow passages between neighbouring holding-up means 16, unless they have first been crushed by the working means. In con ⁇ trast to known apparatus, there is thus no risk that large objects are carried along by the- accept material during a temporarily reversed operation. Conceivable modifications of the invention
  • both the working means 5 on the shaft and the holding-up means 12, 16 in the two sets of holding-up means may be varied in many ways.
  • this wall can be designed with vertical, axially spaced-apart gaps in which there are arranged sector-shaped plates which are attached to a common shaft disposed outside the hopper and which can be pivoted into the interior of the hopper via said gaps.
  • a locking mechanism which is shiftable between a locking and an unlocking position by means of the same hydraulic cylinder 14 as used for pivoting the frame member 1'.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Crushing And Grinding (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)

Abstract

Un appareil désintégrateur comprend une trémie (2) d'acheminement du matériau et un arbre rotatif (4) monté dans une ouverture allongée (3) ménagée dans une structure (1) disposée au-dessous de la trémie. L'arbre comporte une pluralité d'organes de travail (5) disposés hélicoïdalement et espacés les uns des autres dans un sens axial, qui coopèrent avec un organe de retenue (12) dans la région d'un bord latéral longitudinal avant de l'ouverture (3). La trémie (2) est reliée par charnière à la structure, de sorte que, si nécessaire, la trémie peut basculer pour permettre l'accès à l'arbre. En plus dudit organe de retenue (12), l'appareil comprend un second groupe d'organes de retenue (16) monté au niveau du bord latéral longitudinal arrière (11) de l'ouverture (3) et conçu pour empêcher le passage de retour vers le bas d'objets de grande taille entre l'arbre (4) et le bord latéral longitudinal arrière (11) et pour coopérer avec l'organe de travail (5) lors de l'inversion de la direction de rotation de l'arbre, ce qui permet d'obtenir au moins un certain degré de désintégration du matériau même en fonctionnement inversé.
PCT/SE1987/000606 1986-12-16 1987-12-15 Appareil desintegrateur WO1988004578A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8605396A SE455768B (sv) 1986-12-16 1986-12-16 Sonderdelningsaggregat
SE8605396-4 1986-12-16

Publications (1)

Publication Number Publication Date
WO1988004578A1 true WO1988004578A1 (fr) 1988-06-30

Family

ID=20366655

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1987/000606 WO1988004578A1 (fr) 1986-12-16 1987-12-15 Appareil desintegrateur

Country Status (4)

Country Link
EP (1) EP0335898A1 (fr)
AU (1) AU602051B2 (fr)
SE (1) SE455768B (fr)
WO (1) WO1988004578A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2642988A1 (fr) * 1989-02-15 1990-08-17 Onninen Oy Concasseur, notamment pour matieres combustibles solides
FR2655568A1 (fr) * 1989-12-06 1991-06-14 Egretier Jean Michel Dispositif emietteur-dechiqueteur de produits divers.
WO1993020987A1 (fr) * 1992-04-08 1993-10-28 Savomet Energy Oy Hache-bois
EP0682983A1 (fr) * 1994-05-18 1995-11-22 ALFA S.r.l. Appareil de broyage pour matériau composite, en particulier pour des déchets urbains solides
EP0687503A1 (fr) * 1994-06-16 1995-12-20 Werner Doppstadt Déchiqueteur à rouleau
EP0798044A1 (fr) * 1996-03-26 1997-10-01 ALFA S.r.l. Appareil de broyage avec sélection de matériau et compacteur rotatif
US5791567A (en) * 1995-04-28 1998-08-11 Bobst Sa Apparatus for processing used metallized belts or bands

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE510873C2 (sv) * 1992-06-18 1999-07-05 Masma Ab Anordning för att av skivformiga produkter framställa utfyllnadsmaterial avsett att användas som dämpmedel i förpackningar
SE503270C2 (sv) * 1994-08-22 1996-04-29 Harry Wexell Kvarn, förfarande för tillverkning av bentransplantationsmaterial och användning av kvarn för sådan tillverkning

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE426033B (sv) * 1976-05-26 1982-12-06 Roland Palm Anordning for sonderdelning av stubbar till krossflis med samtidig jord- och stenavskiljning
DE3218802A1 (de) * 1982-05-18 1983-11-24 Gebr.Hofmann Maschinenfabrik und Eisengießerei, 8701 Eibelstadt Rotor fuer hammermuehlen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE426033B (sv) * 1976-05-26 1982-12-06 Roland Palm Anordning for sonderdelning av stubbar till krossflis med samtidig jord- och stenavskiljning
DE3218802A1 (de) * 1982-05-18 1983-11-24 Gebr.Hofmann Maschinenfabrik und Eisengießerei, 8701 Eibelstadt Rotor fuer hammermuehlen

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2642988A1 (fr) * 1989-02-15 1990-08-17 Onninen Oy Concasseur, notamment pour matieres combustibles solides
GB2231510A (en) * 1989-02-15 1990-11-21 Onninen Oy Crusher
FR2655568A1 (fr) * 1989-12-06 1991-06-14 Egretier Jean Michel Dispositif emietteur-dechiqueteur de produits divers.
WO1993020987A1 (fr) * 1992-04-08 1993-10-28 Savomet Energy Oy Hache-bois
EP0682983A1 (fr) * 1994-05-18 1995-11-22 ALFA S.r.l. Appareil de broyage pour matériau composite, en particulier pour des déchets urbains solides
US5595348A (en) * 1994-05-18 1997-01-21 Alfa S.R.L. Machine for triturating composite materials, particularly for triturating solid urban waste
EP0687503A1 (fr) * 1994-06-16 1995-12-20 Werner Doppstadt Déchiqueteur à rouleau
US5791567A (en) * 1995-04-28 1998-08-11 Bobst Sa Apparatus for processing used metallized belts or bands
EP0798044A1 (fr) * 1996-03-26 1997-10-01 ALFA S.r.l. Appareil de broyage avec sélection de matériau et compacteur rotatif
US5988541A (en) * 1996-03-26 1999-11-23 Barone; Giuseppe Triturating machine with material selection and rotating compactor

Also Published As

Publication number Publication date
EP0335898A1 (fr) 1989-10-11
AU1055388A (en) 1988-07-15
SE8605396L (sv) 1988-06-17
SE8605396D0 (sv) 1986-12-16
SE455768B (sv) 1988-08-08
AU602051B2 (en) 1990-09-27

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