EP2918732B1 - Dispositif magnétique et procédé - Google Patents

Dispositif magnétique et procédé Download PDF

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Publication number
EP2918732B1
EP2918732B1 EP15158688.0A EP15158688A EP2918732B1 EP 2918732 B1 EP2918732 B1 EP 2918732B1 EP 15158688 A EP15158688 A EP 15158688A EP 2918732 B1 EP2918732 B1 EP 2918732B1
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EP
European Patent Office
Prior art keywords
magnet
rubble
dislodging
magnet device
dislodging member
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.)
Active
Application number
EP15158688.0A
Other languages
German (de)
English (en)
Other versions
EP2918732A1 (fr
Inventor
Robert Roeland Krebs
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.)
KW Supply Beheer BV
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KW Supply Beheer BV
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.)
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Publication date
Application filed by KW Supply Beheer BV filed Critical KW Supply Beheer BV
Publication of EP2918732A1 publication Critical patent/EP2918732A1/fr
Application granted granted Critical
Publication of EP2918732B1 publication Critical patent/EP2918732B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00—Magnetic separation
    • B03C1/02—Magnetic separation acting directly on the substance being separated
    • B03C1/30—Combinations with other devices, not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00—Magnetic separation
    • B03C1/02—Magnetic separation acting directly on the substance being separated
    • B03C1/025—High gradient magnetic separators
    • B03C1/031—Component parts; Auxiliary operations
    • B03C1/033—Component parts; Auxiliary operations characterised by the magnetic circuit
    • B03C1/0335—Component parts; Auxiliary operations characterised by the magnetic circuit using coils
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C2201/00—Details of magnetic or electrostatic separation
    • B03C2201/20—Magnetic separation of bulk or dry particles in mixtures
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits

Definitions

  • the present invention relates to a magnet device for clearing rubble containing rebars.
  • JP-2003-328569 is acknowledged as prior art, relative to which at least the characterizing features of claim 1 are novel.
  • the present invention has for its object, among others, to improve the known magnet devices for clearing rubble containing rebars.
  • a magnet device comprises for this purpose a magnet and at least one dislodging member positioned at the magnet, wherein the magnet device is provided on an attaching side with a frame configured for attaching to an operating arm of a machine, wherein the magnet is positioned on an active side of the magnet device lying opposite the attaching side and is attached rigidly to the frame such that during use the active side of the magnet device can be brought close to the surface of the rubble for clearing by means of the operating arm in order to attract rebars present in the rubble with the magnet, and wherein the dislodging member is mounted on at least one of the frame and the magnet.
  • the rubble can be dislodged using the dislodging member so that rebars can be pulled out of the rubble more easily by means of the magnet positioned at the dislodging member.
  • a piece of rebar with a part lying on the surface of the rubble often extends partially into the rubble.
  • magnet devices which are configured to be brought close to the surface of the rubble for clearing and to attract rebars present in the rubble with a magnet, and which are not provided with dislodging members, the magnet can engage the portion of rebar lying on the surface of the rubble, it is difficult in practice to pull the portion of the rebar extending into the rubble from the rubble. This is particularly the result of the pieces of concrete which are still attached to the rebar and act as anchor. The more compacted the layer of rubble in which the rebar lies, the more difficult pulling the rebar from the rubble becomes.
  • the layer of rubble can be dislodged by means of the dislodging member so that more space is created in the rubble to pull loose a piece of rebar with pieces of concrete thereon out of the rubble by means of the magnet positioned at the dislodging member.
  • the magnet is rigidly attached to the frame with which the magnet device can be attached to an operating arm of a machine, and the dislodging member is mounted on at least one of the frame and the magnet, the magnet and the dislodging member are displaceable as a unit by means of the operating arm relative to the surface of the rubble for clearing while maintaining relative orientation between the magnet and the dislodging member.
  • the dislodging member extends in an operative mode beyond the magnet on the active side of the magnet device.
  • the active side of the magnet device is brought close to the rubble so that the magnet can attract rebars present in the rubble.
  • the dislodging member extends in an operative mode beyond the magnet on the active side of the magnet device, the dislodging member can be inserted into the rubble in order to dislodge the rubble, and the magnet can simultaneously be brought to the surface of the rubble for clearing in order to attract rebars present in the rubble.
  • the dislodging member is selectively movable between the operative mode and an inoperative mode, wherein in the inoperative mode the dislodging member does not extend beyond the magnet on the active side of the magnet device.
  • the magnet and the dislodging member are each mounted individually on the frame.
  • the forces occurring in the dislodging member during dislodging of the rubble are transmitted directly via the frame to the operating arm, so avoiding the magnet being loaded by forces occurring during the dislodging.
  • the dislodging member is alternatively mounted on the magnet. The wall of the magnet on which the dislodging member is then mounted must in that case be strong enough to withstand the forces occurring during dislodging of rubble.
  • the frame is provided with coupling members configured to couple an operating arm of a machine to the upper side of the frame
  • the frame is provided with coupling members with which the magnet is coupled to the underside of the frame
  • the dislodging member is mounted on a side of the frame.
  • the frame can for instance take the simple form of a plate.
  • the coupling members configured to couple an operating arm of a machine to the upper side of the frame are coupling members which co-act with known rapid coupling systems for coupling work tools such as an excavator bucket to an operating arm.
  • the dislodging member is selectively movable between the operative mode and an inoperative mode
  • the dislodging member is mounted by means of a hinge, preferably on the frame, and is pivotable by means of the hinge between the operative mode and the inoperative mode.
  • the magnet device comprises a locking member for locking the dislodging member in the operative mode and in the inoperative mode.
  • the dislodging member comprises an elongate body.
  • An elongate body can be inserted in the longitudinal direction thereof into the rubble with relatively little effort. After the elongate body has been inserted into the rubble, the rubble can be dislodged in effective manner by displacing the magnet device in a direction transversely of the longitudinal direction of the dislodging member.
  • the dislodging member is provided on a free outer end thereof with an exchangeable wear tooth. Wear occurs at the free end of the dislodging member when the dislodging member is inserted into the rubble and when the rubble is dislodged.
  • the use of an exchangeable wear tooth on the free end of the dislodging member makes it possible to remedy damage to the outer end of the dislodging member after a period of use in simple manner by changing the wear tooth.
  • the magnet device comprises an actuator configured to cause the dislodging member to vibrate.
  • the forces required to insert the dislodging member into the rubble and/or to dislodge the rubble can be decreased, particularly in the case of a high degree of compaction of the rubble, by having the dislodging member vibrate.
  • a favourable embodiment of the magnet device according to the invention wherein the dislodging member is selectively movable between the operative mode and an inoperative mode comprises an actuator configured to move the dislodging member between the operative mode and the inoperative mode.
  • This measure makes it possible to move the dislodging member between the operative mode and the inoperative mode from for instance the driver's cab of a work vehicle on which the magnet device is arranged.
  • the movement of the dislodging member between the operative mode and the inoperative mode can be realized manually.
  • a suitable actuator is for instance a hydraulic working cylinder.
  • the dislodging member can be moved by means of an actuator from the operative mode to the inoperative mode by rotating the dislodging member around a pivot axis by means of the actuator. It is possible by means of the same actuator to realize a vibration of the dislodging member by moving the dislodging member reciprocally through a small angle around the pivot axis by means of the actuator.
  • a suitable actuator is for instance a hydraulic working cylinder.
  • a favourable embodiment of the magnet device according to the invention comprises a plurality of dislodging members positioned at a distance from each other in a row.
  • the dislodging members thus form a comb which can be pulled through the rubble in order to dislodge the rubble.
  • the magnet is an electromagnet.
  • an electromagnet By means of an electromagnet a piece of rebar attracted by means of the magnet can be easily released again from the magnet by deactivating the magnet.
  • the magnet is alternatively a permanent magnet.
  • the present invention also relates to a machine for rubble clearing operations, comprising an operating arm having on the free end thereof a magnet device according to the invention as described above.
  • the present invention also relates to a method for clearing rubble containing rebars by means of a magnet device according to the invention as described above, comprising the steps of
  • the active side of the magnet device is brought close to the surface of the rubble for clearing and the dislodging member is inserted into the rubble so that the magnet can attract rebars present in the rubble and the dislodging member can dislodge the rubble.
  • the method comprises of displacing the magnet device along the surface of the rubble for clearing following insertion of the dislodging member into the rubble.
  • FIG. 1 shows a magnet device 1.
  • Magnet device 1 has an electromagnet 3 and four dislodging members 5, 7, 9, 11 positioned at magnet 3.
  • Dislodging members 5, 7, 9, 11 and magnet 3 are mounted on a frame in the form of a plate 13.
  • Plate 13 is provided with holes 15 which serve as coupling members for coupling the plate 13 on the upper side 13a thereof to a free end of an operating arm 16, as shown in figures 2 and 4 .
  • Magnet 3 is coupled rigidly to the underside 13b of plate 13. Plate 13 and magnet 3 are provided for this purpose with co-acting coupling members 17, 19.
  • Dislodging members 5, 7, 9, 11 are mounted on a side 13c of plate 13 by means of hinges 21, 23, 25, 27.
  • Each hinge has a pair of hinge plates 21a/b, 23a/b, 25a/b, 27a/b mounted on plate 13.
  • a respective dislodging member 5, 7, 9, 11 is positioned between each pair of hinge plates.
  • Each hinge plate is provided with three holes.
  • Each dislodging member 5, 7, 9, 11 is provided with two holes.
  • the two holes of each dislodging member 5, 7, 9, 11 are aligned with two of the three holes of each pair of hinge plates.
  • Two pins are placed through the aligned holes, i.e. a hinge pin 31 and a locking pin 33.
  • Figure 1 shows only the upper hole 29 of each hinge plate. This is because hinge pin 31 and locking pin 33 are inserted into respectively the middle hole and the lower hole.
  • Dislodging members 5, 7, 9, 11 are pivotable by means of hinges 21, 23, 25, 27 between an operative mode as shown in figure 1 and an inoperative mode as shown in figure 3 .
  • dislodging members 5, 7, 9 and 11 extend beyond magnet 3 on the active side 1a of magnet device 1.
  • the attaching side 1b of magnet device 1 lying opposite the active side 1a is attached during use to the free end of an operating arm 16 and the active side 1a of magnet device 1 is brought close to rubble 35 by means of the operating arm so that magnet 3 can attract rebars 37 present in the rubble.
  • dislodging members extend in the operative mode beyond magnet 3 on the active side 1a of magnet device 1, dislodging members 5, 7, 9, 11 can be inserted into the rubble 35 in order to dislodge rubble 35 without bringing magnet 3 into contact with the rubble to be dislodged.
  • dislodging the free ends 5a, 7a, 9a, 11a of the dislodging members embodied as elongate bodies are inserted into the rubble.
  • the dislodging members are each provided with an exchangeable wear tooth 37, 39, 41, 43.
  • Dislodging members 5, 7, 9, 11 are positioned at a distance a from each other in a row.
  • the dislodging members hereby form a comb which can be moved through the rubble.
  • hinge pin 31 serves as pivot shaft about which dislodging members 5, 7, 9, 11 can be rotated in the direction of arrow B in order to move the dislodging members into the inoperative mode shown in figure 3 .
  • Figure 3 shows that dislodging members 5, 7, 9, 11 no longer point downward but point upward. In this inoperative mode the dislodging members 5, 7, 9, 11 no longer extend beyond magnet 3 on the active side 1a of the magnet device. As shown in figure 4 , it is possible during use with the dislodging members in the inoperative mode to bring the active side 1a of magnet device 1 close to an iron road plate 45 and to pick up the iron road plate 45 by means of magnet 3.
  • locking pin 33 has been inserted into upper holes 29 of hinge plates 21a/b, 23a/b, 25a/b, 27a/b which were still free in the operative mode of the dislodging members.
  • Lower holes 47 are free in the inoperative mode of the dislodging members.
  • the locking pin 33 is inserted through upper holes 29 of the hinge plates and through the hole in the dislodging members which was aligned with lower holes 47 in the operative mode and is aligned with the upper holes 29 of the hinge plates in the inoperative mode of the dislodging members.
  • FIG. 5 shows an alternative embodiment of magnet device 1 of figures 1-4 .
  • dislodging members 5, 7, 9, 11 are mounted on plate 13 for pivoting around pivot shaft 49.
  • An actuator embodied as hydraulic working cylinder 51 is in engagement with an end 5b of the shown dislodging member 5.
  • By lengthening or shortening working cylinder 51 the opposite end 5a of the dislodging member with wear tooth 37 thereon can be rotated around pivot shaft 49 in respectively the direction of arrow C and the direction of arrow D.
  • By moving the dislodging members in the direction of arrow D the dislodging members can be brought into an inoperative mode in which the dislodging members no longer extend beyond magnet 3 on the active side 1a of the magnet device.
  • An oscillating movement can be generated by alternately moving the dislodging members a short distance in the direction of arrow C and the direction of arrow D. The dislodging members thus vibrate.
  • the magnet and the dislodging members are each mounted individually on the frame. It is however also possible for the dislodging members to be mounted on the magnet. The walls of the magnet on which the dislodging members are then mounted must in that case be strong enough to withstand the forces occurring during dislodging of rubble.
  • dislodging members are arranged in a row on one side of the frame. It is also possible for more or fewer dislodging members to be provided, for instance 1 dislodging member, or 2, 3, 5, 6, 7, 8, 9 or 10 dislodging members. Dislodging members can also be provided on more than one side of the frame.
  • the dislodging members are pivotable between an operative mode and an inoperative mode.
  • the dislodging members are movable in other manner between the operative mode and inoperative mode, for instance by means of a sliding movement. It is also possible that in a magnet device according to the invention the dislodging members are not movable at all and can only be in the operative mode.

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  • Underground Or Underwater Handling Of Building Materials (AREA)

Claims (15)

  1. Dispositif magnétique (1) destiné à dégager des gravats (35) contenant des armatures (37), comprenant :
    un aimant (3) ; et
    au moins un élément de dislocation (5, 7, 9, 11) positionné au niveau de l'aimant (3) ;
    dans lequel
    le dispositif magnétique (1) comporte, sur un côté de fixation (1b), un châssis (13) configuré de manière à être fixé sur un bras de manutention (16) de la machine ;
    l'aimant (3) est positionné sur un côté actif (1a) du dispositif magnétique (1) agencé à l'opposé du côté de fixation (1b) et est fixé de manière rigide sur le châssis (13) de telle sorte que, au cours de l'utilisation, le côté actif (1a) du dispositif magnétique (1) peut être amené à proximité de la surface des gravats (35) à dégager au moyen du bras de manutention (16) dans le but d'attirer les armatures (37) présentes dans les gravats (35) avec l'aimant (3) ; et
    l'élément de dislocation (5, 7, 9, 11) est monté sur au moins l'un du châssis (13) et de l'aimant (3) ;
    caractérisé en ce que
    l'élément de dislocation (5, 7, 9, 11) s'étend au moins dans un mode opérationnel au delà de l'aimant (3) en direction des gravats (35) contenant des armatures (37) sur le côté actif (1a) du dispositif magnétique (1), lorsque le côté actif (1a) du dispositif magnétique (1) a été amené à proximité de la surface des gravats (35) à dégager afin de permette l'insertion de l'élément de dislocation (5, 7, 9, 11) dans les gravats (35) et de permettre simultanément l'attraction par l'aimant (3) des armatures (37) présentes dans les gravats (35), pendant que l'élément de dislocation (5, 7, 9, 11) disloque les gravats (35).
  2. Dispositif magnétique (1) selon la revendication 1,
    dans lequel
    l'élément de dislocation (5, 7, 9, 11) peut être déplacé de manière sélective entre le mode opérationnel et un mode inactif, dans lequel dans le mode inactif l'élément de dislocation (5, 7, 9, 11) ne s'étend pas au delà de l'aimant (3) sur le côté actif (1a) du dispositif magnétique (1).
  3. Dispositif magnétique (1) selon la revendication 1 ou 2,
    dans lequel
    l'aimant (3) et l'élément de dislocation (5, 7, 9, 11) sont montés chacun individuellement sur le châssis (13).
  4. Dispositif magnétique (1) selon la revendication 3,
    dans lequel
    le châssis (13) comporte des éléments de couplage (15) configurés de manière à coupler un bras de manutention (16) d'une machine sur le côté supérieur (13a) du châssis (13) ;
    le châssis (13) comporte des éléments de couplage (17, 19) avec lesquels l'aimant (3) est couplé à la face inférieure (13b) du châssis (13) ; et
    l'élément de dislocation (5, 7, 9, 11) est monté sur un côté (13c) du châssis (13).
  5. Dispositif magnétique (1) selon la revendication 1 ou 2,
    dans lequel
    l'élément de dislocation (5, 7, 9, 11) est monté sur l'aimant (3).
  6. Dispositif magnétique (1) selon les revendications 2 à 5, dans lequel l'élément de dislocation (5, 7, 9, 11) est monté au moyen d'une charnière (21, 23, 25, 27), de préférence, sur le châssis (13), et peut être amené à pivoter au moyen de la charnière (21, 23, 25, 27) entre le mode opérationnel et le mode inactif, dans lequel le dispositif magnétique (1) comprend, en outre, de préférence, un élément de verrouillage (33) afin de verrouiller l'élément de dislocation (5, 7, 9, 11) dans le mode opérationnel et dans le mode inactif.
  7. Dispositif magnétique (1) selon l'une quelconque des revendications précédentes, dans lequel
    l'élément de dislocation (5, 7, 9, 11) comprend un corps allongé (5a, 7a, 9a, 11a), dans lequel l'élément de dislocation (5, 7, 9, 11) comporte, de préférence, sur une extrémité libre de celui-ci, une dent d'usure interchangeable (37, 39, 41, 43).
  8. Dispositif magnétique (1) selon l'une quelconque des revendications précédentes, comprenant :
    un actionneur (51) configuré de manière à amener l'élément de dislocation (5, 7, 9, 11) à vibrer.
  9. Dispositif magnétique (1) selon au moins la revendication 2, comprenant
    un actionneur (51) configuré de manière à déplacer l'élément de dislocation (5, 7, 9, 11) entre le mode opérationnel et le mode inactif.
  10. Dispositif magnétique (1) selon l'une quelconque des revendications précédentes, comprenant :
    une pluralité d'éléments de dislocation (5, 7, 9, 11) positionnés à une certaine distance l'un de l'autre, suivant une rangée.
  11. Dispositif magnétique (1) selon l'une quelconque des revendications précédentes,
    dans lequel l'aimant (3) est un électro-aimant.
  12. Machine destinée à assurer des opérations de dégagement de gravats, comprenant un bras de manutention (16) comportant, à son extrémité libre, un dispositif magnétique (1) selon l'une quelconque des revendications 1 à 11.
  13. Procédé de dégagement de gravats (35) contenant des armatures à l'aide d'un dispositif magnétique (1) selon l'une quelconque des revendications 1 à 11,
    comprenant les étapes de :
    dislocation des gravats (35) avec au moins un élément de dislocation (5, 7, 9, 11), et
    extraction des armatures (37) des gravats disloqués (35) avec un aimant (3) positionné au niveau de l'élément de dislocation (5, 7, 9, 11).
  14. Procédé selon la revendication 13, dans lequel :
    le côté actif (1a) du dispositif magnétique (1) est amené à proximité de la surface des gravats (35) à dégager et l'élément de dislocation (5, 7, 9, 11) est inséré dans les gravats (35) de telle sorte que l'aimant (3) peut attirer les armatures (37) présentes dans les gravats (35) et l'élément de dislocation (5, 7, 9, 11) peut disloquer les gravats (35).
  15. Procédé selon la revendication 14, dans lequel :
    le dispositif magnétique (1) est déplacé le long de la surface des gravats (35) à dégager suite à l'insertion de l'élément de dislocation (5, 7, 9, 11) dans les gravats (35).
EP15158688.0A 2014-03-11 2015-03-11 Dispositif magnétique et procédé Active EP2918732B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL2012401A NL2012401B1 (nl) 2014-03-11 2014-03-11 Magneetinrichting voor het ruimen van puin dat wapeningsijzer bevat.

Publications (2)

Publication Number Publication Date
EP2918732A1 EP2918732A1 (fr) 2015-09-16
EP2918732B1 true EP2918732B1 (fr) 2021-01-13

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CN119507706A (zh) * 2024-12-30 2025-02-25 中铁三局集团广东建设工程有限公司 一种炮机炮头及炮头挖掘机

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JP3570000B2 (ja) * 1995-03-23 2004-09-29 コベルコ建機株式会社 建設機械用バケット装置
JPH09287162A (ja) * 1996-04-19 1997-11-04 Maruyama Sangyo:Kk 掘削機用バケット
JPH10306464A (ja) * 1997-05-07 1998-11-17 Riichi Ogura 鉄筋選別機能付きユンボとその操作方法
DE10014415C2 (de) * 2000-03-24 2002-01-31 Markus Roesmann Lade- und Räumfahrzeug zum Sortieren von Bauschutt
JP2003328569A (ja) * 2002-05-08 2003-11-19 Sakato Kosakusho:Kk 油圧ショベル用電磁石装置付きアタッチメント及び電磁石装置付き破砕機
DE102004021357A1 (de) * 2003-08-22 2005-03-17 Thomas Sauer Anbaugerätehalterung
FI20050805A7 (fi) * 2005-08-09 2007-02-10 Savonlinnan Pr Urakointi Oy Laitteisto ja menetelmä rautapitoisen materiaalin keräämiseksi maaperästä
DE202005016489U1 (de) * 2005-10-20 2007-03-01 Liebherr-Hydraulikbagger Gmbh Hydraulikbagger mit eingebauter Magnettraverse
US8011607B1 (en) * 2006-10-24 2011-09-06 Rossi Jr Robert R Size and metal separator for mobile crusher assemblies

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NL2012401B1 (nl) 2015-11-26
EP2918732A1 (fr) 2015-09-16
NL2012401A (nl) 2015-11-19

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