EP0203272B1 - Appareil broyeur comportant un rotor tournant - Google Patents

Appareil broyeur comportant un rotor tournant Download PDF

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Publication number
EP0203272B1
EP0203272B1 EP86102587A EP86102587A EP0203272B1 EP 0203272 B1 EP0203272 B1 EP 0203272B1 EP 86102587 A EP86102587 A EP 86102587A EP 86102587 A EP86102587 A EP 86102587A EP 0203272 B1 EP0203272 B1 EP 0203272B1
Authority
EP
European Patent Office
Prior art keywords
grate
housing
opening
crushing machine
machine 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
EP86102587A
Other languages
German (de)
English (en)
Other versions
EP0203272A2 (fr
EP0203272A3 (en
Inventor
Joachim Schönfeld
Hans-Günter Lapp
Gabriele Greiner
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.)
Lyndex Recycling Systems Ltd
Original Assignee
Lindemann Maschinenfabrik GmbH
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 Lindemann Maschinenfabrik GmbH filed Critical Lindemann Maschinenfabrik GmbH
Priority to AT86102587T priority Critical patent/ATE47806T1/de
Publication of EP0203272A2 publication Critical patent/EP0203272A2/fr
Publication of EP0203272A3 publication Critical patent/EP0203272A3/de
Application granted granted Critical
Publication of EP0203272B1 publication Critical patent/EP0203272B1/fr
Expired legal-status Critical Current

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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
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26—Details
    • B02C13/282—Shape or inner surface of mill-housings
    • B02C13/284—Built-in screens

Definitions

  • the invention relates to a comminution machine with a well-provided housing, in the end walls of which a rotor equipped with comminution tools is rotatably mounted with a horizontal axis, and with an axially interchangeable outlet grate arranged below the rotor with axially parallel grate bars, in the region of its cross-sectional contour at least one of the end walls of the Housing has an opening.
  • Such a shredding machine is known from DE-C-2 523 746.
  • this machine has the disadvantage that the grate or its two symmetrically formed grate halves must be completely replaced if necessary.
  • complex holding elements for the grate are required and the grate can only be adapted to different types of feed material by replacing the entire grate.
  • US-A-2 450 492 shows and describes a comminution machine of the above type.
  • the grinding grate essentially encloses the lower rotor half.
  • the grinding grid which has axially parallel grate bars, can be moved halfway horizontally out of the housing on rails.
  • the lateral, horizontal extension of the grate with respect to other subordinate units, such as feed and discharge devices, dedusting and viewing devices and their holding structures brings with it considerable problems.
  • this known grate construction it is not possible to adapt the grate to different types of feed
  • This shredding machine is therefore also a complicated and expensive construction.
  • An essential, unfavorable factor is that only after several work steps - namely opening the housing, lifting the rotor and carrying out the associated safety measures - the grinding grate to be replaced is freely accessible .
  • Adaptation to different types of feed is also not possible with this type of construction.
  • the invention has for its object to provide a shredding machine of the type described above, which both allows a quick change of grate, as well as an individual adjustment of the machine to the different types of material to be shredded allows without a basic disassembly of the Crusher would be required.
  • the object is achieved according to the invention in that, in the case of a loading grate constructed from individually interchangeable grate bars, the grate bars lie in the front opening of the housing end wall and are secured in the axial direction by stops (stepped extension piece, cover), and that each interchangeable individual grate bar is at least two the spacer cams determining the grate bar arrangement and / or at least on one side protruding from the housing extension pieces, which keep the individual grate bars at a distance from one another, the shape and width of the distance cams or extension pieces both the respective different grate gap widths and the different gap shapes, ie Impact angles (a and ⁇ ) can be determined.
  • the replacement of the outlet grate is possible in a surprisingly simple manner at this point.
  • the corresponding grate can be installed and removed either as a whole or as a part or some of its bars, the choice of the grate structure determining for manufacturing or economic reasons becomes. If it is necessary to replace the outlet grate, the storage of the grate in the end walls of the housing has a particularly favorable effect; this ensures direct access to the outlet grate, i.e. in other words, the grate is immediately freely accessible without having to carry out complex dismantling or dismantling of other machine components beforehand.
  • the installation and removal of the grate bars can cause problems for the operator with regard to the handling or the possibility of manipulating the grate bars.
  • Handling with the individual grate bars is made considerably easier by the possibility of attacking the attachment piece which preferably protrudes from the housing.
  • the rod is supported on the opening of the housing end wall possible, whereby the individual grate bars are then largely secured against axial thrust after assembly and during the operating state of the shredding machine.
  • the opening provided for the replacement of the outlet grate by at least one cover locked is ensured according to an advantageous development of the invention.
  • the exemplary embodiment according to the invention offers considerably greater security against the possible falling out of individual grate bars, in which the cover projects into the opening in the end wall of the housing to limit the axial displacement by means of an extension piece that grips the grate bars.
  • each exchangeable grate bar has an engagement groove at least one of the ends, in which engages in the opening protruding into the opening of the end wall located on the cover.
  • each exchangeable individual grate bar has at least two the grate bar arrangement has spacing cams which keep the individual grate bars at a distance from one another and which, due to their shape, both the respective different grate gap widths and the different gap shapes, ie determine the lay angle.
  • the varying, shape-like design of the distance cams offers space for additional manipulation options and has a direct influence or effect on the grating gap width, the gap shape or on the relevant impact angles.
  • the interchangeable grate bars are secured against rotation in the circumferential direction by at least one axially extending, fixedly fixed stop bar against which the individual grate bars connected are supported.
  • the comminuting machine designated overall by 1, has a housing 2.
  • a comminuting rotor 3 rotates in the direction of rotation R, the axis 4 of which is mounted on both sides in bearings 7, 8 fastened to bearing blocks 5, 6.
  • the comminution rotor 3 consists of a plurality of rotor disks 9 lined up at a distance on the axis 4, between which comminution tools 10 are rotatably held on axles 11 which pass through the rotor disks 9 at a radial distance from the axis 4 parallel to the latter.
  • Axis 4 is connected to a drive (not shown) via a coupling. Due to the special arrangement of the comminution tools shown in FIGS. 4 and 5, grate bars or an outlet grate 14 formed from them are evenly coated by the comminution tools 10, which, in addition to uniform comminution, also reduces wear and reduces downtimes between them Closing resulting, necessary rust changes.
  • a good inlet 12 and a good outlet 13 is provided in the housing 2.
  • the material inlet 12 is located on the upward-rotating side of the comminution rotor 3 above the rotor axis 4.
  • the material outlet 13 is covered by the outlet grate 14 and an end flap 15 which adjoins the grate 14 on the upward-rotating side of the rotor 3.
  • the end flap 15 serves to influence the possible additional piece size and to remove rust blockages and can alternatively be adjusted purely mechanically or hydraulically, in the exemplary embodiment shown in FIGS. 1 and 2, for example, by means of a ratchet pawl 16.
  • the various positions of the end flap 15 can thus be fixed accordingly.
  • the outlet grate 14, which consists of grate bars 17 which are mounted directly on the end wall (s), essentially encloses the lower rotor half. At least one of the end walls 18, 19 of the housing 2 has an opening 20 in the region of the cross-sectional contour of the outlet grate 14 shown in FIGS. 1 and 2 (see FIGS. 2, 4 and 5) in which the grate or the grate bars are mounted is or are and through which the outlet grille 14 is completely or partially exchangeable in the axial direction.
  • the opening 20 has a sickle or ring segment shape.
  • a web 22 anchored in the end walls 18, 19 of the housing can be arranged axially in the housing 2, approximately in the vertical plane 1 - 1 of the rotor axis 4, according to FIG. 2. This ensures that when replacing a single grate bar 21, not all of the previous grate bars 21 need to be replaced.
  • the number of grate bars 21 to be removed is considerably reduced when replacement is required and can be further reduced if further webs are arranged.
  • the individual, interchangeable grate bars 21 can be provided with a stepped extension 23 protruding from the housing 2 on at least one of their ends, in particular on the side on which the grate bars are exchanged, so that the stepped surface 24 is limited the axial mobility of each grate bar 21 against the inner surface 25 of the end wall 18, 19 of the housing 2, as shown in Fig. 5, 6 and 6a.
  • the removal and installation of the individual interchangeable grate bars 21 can additionally be simplified in that a tool recess in the form of a groove 23a, for example an elongated hole, is provided in the extension piece 23 of each grate bar 21, which is expanded in the middle by a bore , as it shows the top view of FIG. 6a.
  • two support blocks or a support bar 26 are provided on the inner surface 25 of the end wall 18, 19 of the housing.
  • At least one cover can additionally secure the grate bars 21 27 are attached to the outer end wall 18, 19 of the housing 2, which, as shown in FIGS. 3 and 5, presses against the outwardly protruding, stepped extension piece 23 and thus holds the individual grate bars 21 in position.
  • three covers 27 are provided instead of one cover 27.
  • cover 27 it would also be conceivable for a different embodiment of the cover 27 than the cover 27, which smoothly closes with its contact surface with the opening or end wall 18, 19, for example a cover could also be used for the stepped grate bars, as described below is explained in more detail and is shown in Figures 4 and 7a to another embodiment.
  • FIGS. 4 and 7a and b Another embodiment of an exchangeable grate bar 21 is shown in FIGS. 4 and 7a and b.
  • This grate bar 28 which is smooth at the ends, can be secured against axial displacement by a simple cover 29 fastened to the outer surface of the end wall 18, 19 of the housing 2, as is shown, for example, in the exemplary embodiment according to FIG. 4.
  • the cover 29 does not necessarily have to be provided, as in the exemplary embodiment shown, with an extension piece 30 which extends over the grate bars and which extends into the opening 20 in the end wall which is then graduated 18, 19 of the housing protrudes, but the cover can optionally close or align with its contact surface also with the outer surface of the end wall 18, 19, as shown in Fig.
  • each exchangeable smooth grate bar can have an engagement groove 31 at at least one of its ends, into which the opening 20 of the End wall 18, 19 protruding projection 30 located on cover 29 engages.
  • an axially running, fixedly fixed stop bar 32 alternatively protects against displacements in the circumferential direction, as is shown and attached to the grate ends in FIG. 1, for example. Against this stop bar 32, the grate bars 21, which are spaced apart from each other, are supported.
  • Each exchangeable grate bar 21 can be provided with at least two, depending on the machine size or the length of the grate bar 21, but also with a plurality of spacer cams 21 a which determine the grate bar arrangement, as shown in FIGS. 8 a and b. But there is also the possibility of providing a spacer cam 21 a, which is not shown and which is rectangular in cross section, which is then not beveled.
  • the individual interchangeable grate bars 21 are kept at a distance from one another by the spacer cams 21 a.
  • the upper dimension - b - of the distance cam 21 a is decisive for the distance between the individual grate bars.
  • any desired grate gap width - c - can be easily generated.
  • Different shapes of the distance cams 21 a can also be used to produce a wide variety of gap shapes and lay angles a and ⁇ .
  • Fig. 8c shows a further embodiment in which rectangular extensions 23 are attached to the end faces of the grate bars 21 in such a way - either, as shown, welded or screwed - that they hold the grate bars 21 at the desired distance by mutual abutment.
  • a groove 23a which facilitates manipulation can be provided in each attachment piece (only one shown in the drawing).
  • the screw connection of the end pieces offers a very simple possibility of exchanging them for those of other dimensions, so that this not only gives a quick exchange but also an excellent possibility for changing the grate bar distances.
  • the opening cross-sections and shapes of the outlet grate can be manipulated to influence the size and / or density of the material to be shredded. Whether the material turns out to be more or less dense and smaller or larger is determined by the correspondingly selected grating gap width - c - and grating gap shape or by the spacing of the individual grate bars from one another or by the upper dimension - b - of the distance cam 21 a.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Disintegrating Or Milling (AREA)

Claims (7)

1. Machine de broyage (1) comprenant une enveloppe (2) qui est munie d'une ouverture (12) pour l'arrivée des produits et dans les parois frontales (18, 19) de laquelle est monté à rotation un rotor (3) d'axe horizontal (4) équipé d'outils de broyage (10), et une grille d'évacuation (14), située au-dessous du rotor (3), qui peut être remplacée par déplacement axial et comporte des barreaux de grille (17) d'axes parallèles et au niveau du contour transversal de laquelle l'une au moins des parois frontales (18, 19) de l'enveloppe présente une ouverture (20), caractérisée en ce que, dans la grille d'évacuation (14) constituée par des barreaux de grille pouvant être remplacés individuellement, les barreaux de grille (21, 28) sont posés dans l'ouverture (20) ménagée du côté frontal dans la paroi (18, 19) de l'enveloppe et sont fixés dans le sens axial par des butées (pièces rapportées 23 à gradins, couvercle 27 et 29) et en ce que chaque barreau de grille (21, 28) pouvant être remplacé individuellement comporte au moins deux cames (21 a) de maintien à distance déterminant la structure de la grille et/ou, au moins d'un côté, des pièces rapportées (23) dépassant de l'enveloppe et maintenant les barreaux de grille individuels (21, 28) à une distance (b) les uns des autres, la forme et la largeur des cames (21 a) de maintien à distance ou des pièces rapportées (23) déterminant aussi bien les largeurs (c) des intervalles de la grille que les différentes formes des intervalles, c'est-à-dire les angles d'impact (a et ß).
2. Machine de broyage selon la revendication 1, caractérisée par au moins une nervure (22) située de préférence dans le plan vertical (1-1) qui contient l'axe du rotor orientée suivant l'axe de l'enveloppe (2) et ancrée dans les parois frontales (18, 19) de l'enveloppe (2).
3. Machine de broyage selon l'une des revendications 1 ou 2, caractérisée en ce que les barreaux de grille amovibles (21) sont bloqués, pour empêcher leur rotation dans le sens périphérique, par une nervure de butée fixe (32) orientée suivant l'axe de l'enveloppe (2), et sur laquelle prennent appui les barreaux de grille (21) qui se trouvent à une certaine distance les uns des autres.
4. Machine de broyage selon une des revendications 1 à 3, caractérisée en ce que l'ouverture (20) prévue pour le remplacement de la grille d'évacuation (14) est fermée par au moins un couvercle (27, 29).
5. Machine de broyage selon la revendication 4, caractérisée en ce que, pour limiter le déplacement axial des barreaux de grille (28), le couvercle (29) dépasse, par une pièce rapportée (30) qui la recouvre, dans l'ouverture (20) ménagée dans la paroi frontale (18, 19) de l'enveloppe (2).
6. Machine de broyage selon la revendication 5, caractérisée en ce que chaque barreau de grille amovible (28) comporte, à l'une de ses extrémités au moins, une rainure (31) de mise en prise dans laquelle s'engage la pièce rapportée (30) qui se trouve sur le couvercle (29) et qui pénètre dans l'ouverture (20) ménagée dans la paroi frontale (18, 19).
7. Machine de broyage selon une des revendications 1 à 6, caractérisée par une évidement (23a) pour outils, de préférence en forme de rainure ou de trou oblong, ménagé dans la pièce rapportée (23) de chaque barreau de grille.
EP86102587A 1985-05-31 1986-02-28 Appareil broyeur comportant un rotor tournant Expired EP0203272B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86102587T ATE47806T1 (de) 1985-05-31 1986-02-28 Zerkleinerungsmaschine mit umlaufendem rotor.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3519516 1985-05-31
DE19853519516 DE3519516A1 (de) 1985-05-31 1985-05-31 Zerkleinerungsmaschine mit umlaufendem rotor

Publications (3)

Publication Number Publication Date
EP0203272A2 EP0203272A2 (fr) 1986-12-03
EP0203272A3 EP0203272A3 (en) 1987-11-11
EP0203272B1 true EP0203272B1 (fr) 1989-11-08

Family

ID=6272087

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86102587A Expired EP0203272B1 (fr) 1985-05-31 1986-02-28 Appareil broyeur comportant un rotor tournant

Country Status (7)

Country Link
US (1) US4706898A (fr)
EP (1) EP0203272B1 (fr)
JP (1) JPS6223445A (fr)
AT (1) ATE47806T1 (fr)
DE (2) DE3519516A1 (fr)
ES (1) ES8703295A1 (fr)
RU (1) RU1828411C (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002040169A1 (fr) 2000-11-15 2002-05-23 Svedala Lindemann Gmbh Procede et installation de broyage de dechets

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3709809A1 (de) * 1987-03-25 1988-10-13 Phb Weserhuette Ag Zerkleinerungsmaschine
US5273218A (en) * 1990-08-20 1993-12-28 Burns Leslie L Falcon hog
DE4210809C2 (de) * 1992-04-01 1994-11-17 Orenstein & Koppel Ag Zerkleinerungsmaschine, insbesondere Prallbrecher, und Verfahren zum Wechseln der Prallelemente und / oder Prallkörper
US5381971A (en) * 1993-07-09 1995-01-17 Williams Patent Crusher And Pulverizer Company Grinding apparatus
US5881959A (en) 1995-05-04 1999-03-16 Cmi Corporation Materials grinder with infeed conveyor and anvil
US6962300B2 (en) * 2000-11-15 2005-11-08 Diamond Z Manufacturing Stationary cone over tub
JP2002192000A (ja) * 2000-12-25 2002-07-10 Komatsu Ltd 木材破砕機
US6910647B2 (en) 2001-08-21 2005-06-28 Peterson Pacific Corporation Side removal screen system for materials reducing machines
US6843435B2 (en) * 2002-11-18 2005-01-18 Vermeer Manufacturing Company Mill box for materials grinder
CN100368170C (zh) * 2005-02-03 2008-02-13 丁东 废丁基树脂或丁基硫化橡胶的粉碎方法
WO2014168967A1 (fr) * 2013-04-09 2014-10-16 Esco Corporation Grilles d'évacuation pour broyeurs de déchiquetage
US9707565B2 (en) 2014-04-09 2017-07-18 II Lyman Burdette Lyne Screen assembly for shredding machine
DE102019121483B3 (de) * 2019-08-08 2020-12-10 Comes Maschinen- und Apparatebau GmbH Bodenrost-Austausch in Shredderanlagen
JP2022088019A (ja) * 2020-12-02 2022-06-14 株式会社Msc スクリーン、及び、それを用いた破砕又は粉砕処理装置
EP4173716A1 (fr) 2021-10-29 2023-05-03 Comes Maschinen- und Apparatebau GmbH Machine de broyage

Citations (1)

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Publication number Priority date Publication date Assignee Title
DE2523746C2 (de) * 1974-05-29 1982-09-02 Gebrüder Bühler AG, 9240 Uzwil Schlagmühle

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US17334A (en) * 1857-05-19 Machinery for dressing sewing-thread
US1170389A (en) * 1915-10-27 1916-02-01 Linus D Armstrong Cotton-picker.
US2141664A (en) * 1936-12-28 1938-12-27 Jeffrey Mfg Co Grinder
US2450492A (en) * 1944-05-20 1948-10-05 Jeffrey Mfg Co Removable screen structure for rotary beater mills
DE2146362A1 (de) * 1971-09-16 1973-03-22 Braunschweigische Masch Bau Vorrichtung zum zerkleinern von haushaltsmuell
JPS511878B2 (fr) * 1971-12-16 1976-01-21
DE2406204C3 (de) * 1974-02-09 1986-07-10 Lindemann Maschinenfabrik GmbH, 4000 Düsseldorf Befestigung von auswechselbaren Schleißplatten an Gehäusewänden von Zerkleinerungsmaschinen
JPS511878U (fr) * 1974-06-18 1976-01-08
US4129260A (en) * 1976-08-23 1978-12-12 Baker Marlin J Garbage disposal
GB8320384D0 (en) * 1983-07-28 1983-09-01 Ingleton Eng Ltd Screen and frame assembly

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Publication number Priority date Publication date Assignee Title
DE2523746C2 (de) * 1974-05-29 1982-09-02 Gebrüder Bühler AG, 9240 Uzwil Schlagmühle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002040169A1 (fr) 2000-11-15 2002-05-23 Svedala Lindemann Gmbh Procede et installation de broyage de dechets
DE10056637B4 (de) * 2000-11-15 2005-10-13 Metso Lindemann Gmbh Verfahren und Anlage zur Zerkleinerung von Abfall

Also Published As

Publication number Publication date
EP0203272A2 (fr) 1986-12-03
ATE47806T1 (de) 1989-11-15
RU1828411C (ru) 1993-07-15
JPH0318495B2 (fr) 1991-03-12
US4706898A (en) 1987-11-17
DE3519516A1 (de) 1986-12-04
DE3519516C2 (fr) 1987-05-14
ES8703295A1 (es) 1987-02-16
EP0203272A3 (en) 1987-11-11
ES553670A0 (es) 1987-02-16
DE3666783D1 (en) 1989-12-14
JPS6223445A (ja) 1987-01-31

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