EP0370861A1 - Hammermühle mit zentraler Zufuhrvorrichtung zum Zerreissen von metallischen Gegenständen - Google Patents

Hammermühle mit zentraler Zufuhrvorrichtung zum Zerreissen von metallischen Gegenständen Download PDF

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Publication number
EP0370861A1
EP0370861A1 EP89403114A EP89403114A EP0370861A1 EP 0370861 A1 EP0370861 A1 EP 0370861A1 EP 89403114 A EP89403114 A EP 89403114A EP 89403114 A EP89403114 A EP 89403114A EP 0370861 A1 EP0370861 A1 EP 0370861A1
Authority
EP
European Patent Office
Prior art keywords
covers
drum
mill
crushing
crusher 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.)
Withdrawn
Application number
EP89403114A
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English (en)
French (fr)
Inventor
Arnaud Becker
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0370861A1 publication Critical patent/EP0370861A1/de
Withdrawn legal-status Critical Current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
    • 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
    • B02C13/286—Feeding or discharge

Definitions

  • the present invention relates to the field of recovery of metallic products from manufactured objects, in particular by shredding, and relates to a hammer mill, with central feed, for shredding metallic objects.
  • the recovery of metallic products from end-of-life objects, in particular motor vehicles, by means of crushers or shredders is carried out by application of known methods, which generally consist in introducing said metallic products, by means of a feed device with crushing drums and an introduction ramp, in a hammer mill which tears off and shreds the material entering said mill, by interaction with one or more anvils, and which ejects and / or evacuates through walls screening the metallic waste obtained, having a predetermined size, this waste then being treated with a view to eliminating materials unfit for reuse and sorting the remaining materials according to their metallurgical characteristics.
  • the presently existing grinding devices generally have, in particular according to FR-A-2 522 536, a feed device whose crushing drums are arranged at a fixed position on a frame which can be tilted relative to the ramp for introduction into the grinder.
  • This tilting of the chassis allows adjustment of the crushing of the metal object to be shredded subsequently, by means of the crushing drums which simultaneously carry out an action of transporting said object in the direction of the inlet of said grinder.
  • the present invention aims to overcome these drawbacks.
  • a hammer mill for shredding metal objects essentially constituted by hammers mounted on a drive drum disposed in a grinding chamber provided with screening walls in the lower part and in the upper part and by a feed device with crushing drums, characterized in that it has an upper central feed, in that it is provided, in addition, with two covers pivotally mounted on the frame of the crusher and delimiting, on the side opposite to their axis of articulation, the central feed inlet of the mill, in that the hammer drive drum is driven in both directions of rotation, and in that the crushing drum feed device is mounted at pivoting on one of the pivoting covers or on the lower chassis of the mill, so that it can be moved in the space defined between the covers.
  • the hammer mill for shredding metallic objects which essentially consists of hammers 1 mounted on a drive drum 2 disposed in a grinding enclosure 3 provided with screening walls 4 and 5 in the lower part and in the upper part, this enclosure 3 being connected to a supply device 6 provided with crushing drums 7, 8, is characterized in that it has an upper central supply, in that it is further provided with two covers 9 pivotally mounted on the chassis 10 of the mill and delimiting, on the side opposite their axis of articulation 11, the inlet 12 central supply of the crusher, in that the hammer drive drum 2 is driven in both directions of rotation, and in that the crushing drum supply device 7, 8 is pivotally mounted on one of the pivoting covers 9 or on the lower chassis 10 of the mill, so that it can be moved in the space delimited between the covers 9.
  • the covers 9 are advantageously mounted with articulation on two opposite sides of the chassis 10 of the crusher and are pivotable between the open and closed positions by means of hydraulic jacks 13 fixed at one end to the chassis 10 and at their other end to the covers 9.
  • This embodiment makes it possible to completely free access to the enclosure 3 and therefore to the drum 2 for driving the hammers 1, in particular for interventions of repair or change of said hammers 1.
  • the lower screening wall 4 is advantageously in the form of a grid extending in the bottom of the chassis 10 around the drum 2 and is extended on either side, parallel to the axis of the drum 2, by bars 14 of shredding and densification, square, round or other.
  • the bars 14 can also be replaced by grids. In such a case, the efficiency of the mill can be significantly increased.
  • the pivoting covers 9 each have, internally, an interchangeable and movable upper screening wall 5 above the grinding chamber 3, in the closing position of the covers 9, by means of at least one hydraulic cylinder 16, the section, closed by this screening wall 5 in the service position, being delimited in the direction of the grinding chamber 3 by densification walls 17 and 18 extending, respectively, up to the shredding and densification bar 14 upper, in position for closing the cover, and up to a reversible anvil 19 extending along the cover 9 on the side opposite its hinge pin 11 (FIG. 1).
  • the upper screening walls 5, movable by means of the jacks 16, serve, in their retracted position releasing the corresponding opening in the cover, ejection valves for objects which cannot be shredded.
  • the reversible anvils 19 are anvils which have four effective edges and that it therefore suffices simply to turn a quarter of a turn, after wear of an edge, to have a new effective edge. These anvils are advantageously fixed, in a known manner, by bolting or by a through axis bearing on the side walls.
  • each cover 9 has a chamber 20 for discharging the dense ground products communicating with the chamber 21, extending in the frame 10 under the screening wall 4.
  • the feed device with crushing drums 7 and 8 is advantageously, as shown in FIG. 1, in the form of a pair of support arms 22 pivotally mounted on the sides of one of the covers 9 against the action of hydraulic cylinders 23 (FIG. 2) and carrying at least one crushing drum 7, one or more crushing drums 8 being mounted movably relative to the drum 7 and to the arm 22 on a pivoting support frame 24 articulated at the free end of the arms 22 and actuated by means of hydraulic cylinders 25.
  • hydraulic cylinders 23 FIG. 2
  • the drum 2 can operate indifferently in both directions of rotation, due to the perfect symmetry of the ejection grids with respect to the vertical axis of the mill.
  • the invention it is possible to produce a hammer mill, in which the hammer drive drum can rotate in both directions, thus allowing regular wear of the hammers without dismantling them, therefore with an optimization of the yield.
  • the feeding of this mill can also be carried out optimally, the rolling of the objects to be ground can be adjusted.
  • the mill according to the invention being provided with a central feed inlet, its size, with capacity for equal grinding, is significantly lower than that of known mills and its yield is significantly higher.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)
EP89403114A 1988-11-10 1989-11-10 Hammermühle mit zentraler Zufuhrvorrichtung zum Zerreissen von metallischen Gegenständen Withdrawn EP0370861A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8814974A FR2638662B1 (fr) 1988-11-10 1988-11-10 Broyeur a marteaux, a alimentation centrale, pour le dechiquetage d'objets metalliques
FR8814974 1988-11-10

Publications (1)

Publication Number Publication Date
EP0370861A1 true EP0370861A1 (de) 1990-05-30

Family

ID=9371952

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89403114A Withdrawn EP0370861A1 (de) 1988-11-10 1989-11-10 Hammermühle mit zentraler Zufuhrvorrichtung zum Zerreissen von metallischen Gegenständen

Country Status (2)

Country Link
EP (1) EP0370861A1 (de)
FR (1) FR2638662B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1006965A3 (fr) * 1993-04-07 1995-02-07 Lefort Presses & Cisailles Dechiqueteur perfectionne.
ITUD20090211A1 (it) * 2009-11-19 2011-05-20 Raf Ricambi Attrezzature Per La F Rantumazione S Mulino frantumatore
WO2012140388A1 (fr) * 2011-04-15 2012-10-18 Arnaud Becker Installation combinee de traitement de produits par broyage, par dechiquetage ou par compactage

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113289724A (zh) * 2021-04-13 2021-08-24 长沙量纹科技有限公司 一种自给油的锤式破碎机

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4009836A (en) * 1975-06-30 1977-03-01 American Pulverizer Company Material reducing machine
GB2116088A (en) * 1982-03-03 1983-09-21 Newell Mfg Co Hammer mill having capped disc rotor
EP0103778A2 (de) * 1982-09-16 1984-03-28 Lindemann Maschinenfabrik GmbH Hammerbrecher

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4009836A (en) * 1975-06-30 1977-03-01 American Pulverizer Company Material reducing machine
GB2116088A (en) * 1982-03-03 1983-09-21 Newell Mfg Co Hammer mill having capped disc rotor
EP0103778A2 (de) * 1982-09-16 1984-03-28 Lindemann Maschinenfabrik GmbH Hammerbrecher

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1006965A3 (fr) * 1993-04-07 1995-02-07 Lefort Presses & Cisailles Dechiqueteur perfectionne.
ITUD20090211A1 (it) * 2009-11-19 2011-05-20 Raf Ricambi Attrezzature Per La F Rantumazione S Mulino frantumatore
EP2327478A1 (de) * 2009-11-19 2011-06-01 Raf - Ricambi Attrezzature Per La Frantumazione - Spa Brechermühle
US8505843B2 (en) 2009-11-19 2013-08-13 RAF—Ricambi Attrezzature per la Frantumazione-SpA Crushing mill
WO2012140388A1 (fr) * 2011-04-15 2012-10-18 Arnaud Becker Installation combinee de traitement de produits par broyage, par dechiquetage ou par compactage
FR2974017A1 (fr) * 2011-04-15 2012-10-19 Arnaud Becker Installation combinee de traitement de produits par broyage, par dechiquetage ou par compactage

Also Published As

Publication number Publication date
FR2638662A1 (fr) 1990-05-11
FR2638662B1 (fr) 1991-02-01

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