EP0379456A1 - Broyeur à marteaux muni d'un dispositif de blocage en position escamotée des marteaux dans le tambour - Google Patents

Broyeur à marteaux muni d'un dispositif de blocage en position escamotée des marteaux dans le tambour Download PDF

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Publication number
EP0379456A1
EP0379456A1 EP90440004A EP90440004A EP0379456A1 EP 0379456 A1 EP0379456 A1 EP 0379456A1 EP 90440004 A EP90440004 A EP 90440004A EP 90440004 A EP90440004 A EP 90440004A EP 0379456 A1 EP0379456 A1 EP 0379456A1
Authority
EP
European Patent Office
Prior art keywords
hammers
discs
drum
hammer
hole
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Withdrawn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
EP90440004A
Other languages
German (de)
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 EP0379456A1 publication Critical patent/EP0379456A1/fr
Withdrawn legal-status Critical Current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
    • B02C13/28—Shape or construction of beater elements

Definitions

  • the present invention relates to the field of the recovery of metal products from manufactured objects, in particular by shredding by means of hammer mills, and relates to a hammer mill provided with a device for locking the hammers in the retracted position in the drum.
  • the recovery of metallic products from end-of-life objects, in particular motor vehicles, by means of crushers or grinders, is generally carried out by introducing the objects into a hammer mill which tears off and shreds the material entering said crusher, by interaction with one or more anvils, and which ejects and / or evacuates through screening walls the mechanical waste obtained having a determined size.
  • the hammers are generally mounted on a rotor constituted by an assembly of discs separated by spacers at the level of the fixing of the hammers which are eclipsable in the rotor and which can rotate freely around their fixing axis.
  • these hammers are subject to wear and must therefore be mounted inversely on their axis, in order to prolong their service life.
  • the present invention aims to overcome these drawbacks.
  • the hammer mill which comprises a hammer drive drum, essentially constituted by discs 1 mounted on a drive axis 2, by spacers 3 for spacing the discs 1, by hammers 4 mounted between the discs 1 in the intervals delimited by the spacers 3 and by axes 5 of articulation of the hammers 4 passing through the discs 1, is characterized in that it is provided with a device 6 for locking in the retracted position of the hammers in the hammer drive drum.
  • the device 6 for locking the hammers 4 in the retracted position in the drum is advantageously constituted by pins 7 arranged retractably in the discs 1 by means of jacks 8 and cooperating, in the operating position, the hammers 4 being retracted between the discs 1, each with a hole 9 of corresponding section provided in at least one lateral face of said hammers 4.
  • each hammer 4 is provided on at least one lateral face with at least one specific hole 9, traversing or not, preferably conical or conical from each face, each hole 9 being intended to cooperate with a corresponding spindle 7 actuated by at least one jack 8 and being disposed at a distance from the passage hole of its hinge pin.
  • the conduits for supplying fluid to the actuators 8 are advantageously drilled in the discs 1 and in the spacers 3 and are connected to an end plate connected to a central distribution unit by means of valves.
  • Such an end plate and the corresponding distribution valves are known in the art and are not described in detail.
  • the cylinders 8 for controlling the pins 7 are self-locking cylinders and are actuated by pairs of diametrically opposed cylinders, a pressure contact (not shown) being assigned to each cylinder 8 and detecting the arrival at end of penetration stroke of the pins 7 in the corresponding holes 9 of the hammers 4.
  • the invention it is possible to produce a device allowing the selective retraction or the selective release of the hammers of a hammer mill according to the products to be ground.
  • the hammer drive drum can be lined with a maximum of hammers, some of which can be released, for example, after wear of the hammers in service and always so that the drum turns without unbalance.
  • the device according to the invention is particularly advantageous in the case of the use of a reversible drum because it makes it possible to increase the operating autonomy of this drum by avoiding a significant number of hammer changes or hammer reversals.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)
EP90440004A 1989-01-17 1990-01-17 Broyeur à marteaux muni d'un dispositif de blocage en position escamotée des marteaux dans le tambour Withdrawn EP0379456A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8900843 1989-01-17
FR8900843A FR2641714A1 (fr) 1989-01-17 1989-01-17 Broyeur a marteaux muni d'un dispositif de blocage en position escamotee des marteaux dans le tambour

Publications (1)

Publication Number Publication Date
EP0379456A1 true EP0379456A1 (fr) 1990-07-25

Family

ID=9378045

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90440004A Withdrawn EP0379456A1 (fr) 1989-01-17 1990-01-17 Broyeur à marteaux muni d'un dispositif de blocage en position escamotée des marteaux dans le tambour

Country Status (4)

Country Link
US (1) US4997136A (enrdf_load_stackoverflow)
EP (1) EP0379456A1 (enrdf_load_stackoverflow)
JP (1) JPH02233153A (enrdf_load_stackoverflow)
FR (1) FR2641714A1 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993003845A1 (en) * 1991-08-13 1993-03-04 I.L.I.D. S.A.S. Di Paolini Michele & C. A system for the machining of inert materials for the production of sand or granulates in general, applicable to the rotors of both reversible and non-reversible hammer mills

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5490637A (en) * 1994-03-18 1996-02-13 Golesis; Kyriakos Metal shredding machine
US6364227B1 (en) 2000-06-21 2002-04-02 John Dorscht Interface elements for shredder mills
DE102008013232A1 (de) * 2008-03-07 2009-09-17 Pallmann Maschinenfabrik Gmbh & Co Kg Vorrichtung zum Zerkleinern von Aufgabegut mit einem Rotor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3844494A (en) * 1973-02-01 1974-10-29 Ferromet Inc Hammer mill rotor assembly
DE3218802A1 (de) * 1982-05-18 1983-11-24 Gebr.Hofmann Maschinenfabrik und Eisengießerei, 8701 Eibelstadt Rotor fuer hammermuehlen

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2748312A1 (de) * 1976-11-01 1978-05-03 Michel Albert Jadouin Zerkleinerer
US4313575A (en) * 1978-03-03 1982-02-02 Pettibone Corporation Caps for hammermill rotors secured by individually-removable paired pin assemblies

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3844494A (en) * 1973-02-01 1974-10-29 Ferromet Inc Hammer mill rotor assembly
DE3218802A1 (de) * 1982-05-18 1983-11-24 Gebr.Hofmann Maschinenfabrik und Eisengießerei, 8701 Eibelstadt Rotor fuer hammermuehlen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993003845A1 (en) * 1991-08-13 1993-03-04 I.L.I.D. S.A.S. Di Paolini Michele & C. A system for the machining of inert materials for the production of sand or granulates in general, applicable to the rotors of both reversible and non-reversible hammer mills

Also Published As

Publication number Publication date
FR2641714B1 (enrdf_load_stackoverflow) 1994-04-22
US4997136A (en) 1991-03-05
JPH02233153A (ja) 1990-09-14
FR2641714A1 (fr) 1990-07-20

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