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WO2008108635A1 - Procédé de séparation de parties contenant du métal à partir d'un sol contenant des gravats - Google Patents

Procédé de séparation de parties contenant du métal à partir d'un sol contenant des gravats Download PDF

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Publication number
WO2008108635A1
WO2008108635A1 PCT/NL2008/000070 NL2008000070W WO2008108635A1 WO 2008108635 A1 WO2008108635 A1 WO 2008108635A1 NL 2008000070 W NL2008000070 W NL 2008000070W WO 2008108635 A1 WO2008108635 A1 WO 2008108635A1
Authority
WO
WIPO (PCT)
Prior art keywords
rubble
fractions
discharge flow
metal
soil
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.)
Ceased
Application number
PCT/NL2008/000070
Other languages
English (en)
Inventor
Jan Andreas Groothoff
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.)
RECCO BV
Original Assignee
RECCO 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.)
Filing date
Publication date
Application filed by RECCO BV filed Critical RECCO BV
Publication of WO2008108635A1 publication Critical patent/WO2008108635A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09C—RECLAMATION OF CONTAMINATED SOIL
    • B09C1/00—Reclamation of contaminated soil
    • 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
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B9/00—General arrangement of separating plant, e.g. flow sheets
    • B03B9/06—General arrangement of separating plant, e.g. flow sheets specially adapted for refuse
    • B03B9/061—General arrangement of separating plant, e.g. flow sheets specially adapted for refuse the refuse being industrial
    • B03B9/065—General arrangement of separating plant, e.g. flow sheets specially adapted for refuse the refuse being industrial the refuse being building rubble
    • 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
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2/00—Lime, magnesia or dolomite
    • C04B2/005—Lime, magnesia or dolomite obtained from an industrial by-product
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/58—Construction or demolition [C&D] waste

Definitions

  • the present invention relates to a method for separating metal-containing parts from rubble- containing soil.
  • the invention relates to a method for separating substantially all metal-containing parts from possibly chemically contaminated rubble-containing soil with a high sticky mass content, in particular high clay content. Contaminations in the soil may be, for example, packing substances or aromatic compounds.
  • DE3248493A1 discloses a device and method for re-obtaining valuable materials from the structural sector.
  • Beside demolition remainder a released discharge flow of remainders from the structural sector may comprise for example as a result of re-development work, also rubble, domestic objects, furniture, packaged materials and a lot of other objects. Most of the times this discharge flow of remainders is transported away in containers.
  • the discharge flow of remainders comprises a lot of valuable materials like wood, metal, stone, sand and combustible materials, which can be re-obtained.
  • a separating device is provided which comprises a bunker to which the discharge flow of remainders can be supplied for subsequently separating by conveyer bands ed. along screen units, manual sorting stations, scissors, separators for ferrous containing metal parts, wind separators and separators for non ferrous metal parts, into several re-usable materials.
  • a drawback to the known separator device is that it is not suitable for the processing of other kinds of remainder discharge flows.
  • digged-up highly chemically contaminated clay-containing soil which also contains a certain amount of rubble can not be processed with the separator device, because this would very soon lead to a silting up of several components of the separator device. This is especially the case when the content of clay becomes very high.
  • the method according to the invention separates metal-containing parts from the rubble- containing soil. By removing the metal-containing parts from rubble-containing soil, the remaining rubble-containing soil can be used as an alternative raw material for the production of cement. According to the method, the limestone and marl which are used for the production of cement can at least partially be replaced by the resulting rubble-containing soil.
  • the method according to the invention is environmentally friendly due to the re-use of materials.
  • the rubble-containing soil does not have to be taken to waste sites, despite some possible contaminations in the soil.
  • very high temperatures occur e.g. due to a temperature-treatment in a furnace, as a result of which the soil is cleaned of any contaminations or the latter are converted to harmless substances.
  • Contaminations in the rubble-containing soil are not so relevant for cement production; what is much more important is the fact that, as is the case with the method according to the invention, substantially all metal-containing parts in particular those metal-containing parts which are greater than 12 mm have been removed from the rubble-containing soil.
  • metal-containing parts are able to cause great damage to grinding mills and detectors and thus cause malfunctions during the production of cement.
  • the risk of damage or malfunction is minimized.
  • Old rubble dumps can be used as a source of rubble-containing soil.
  • excavated soil containing remains of foundations can serve as a supply of rubble-containing soil.
  • the rubble-containing soil comprises a variety of metals, such as Fe, Cu, Al, RVS, Zn, Pb, brass, etc., which originate from reinforcements in concrete building structures or old ducts, for example.
  • a screen device having at least one screen unit of the star screen type.
  • the star screen has driven shafts which are provided with star-shaped screen bodies. It is typical of the fractions of rubble- containing soil supplied that the soil comprises many sticky masses, such as clay, in particular till more than 50 % sticky masses like said clay. As a result of the sticky masses, there is a considerable risk that a screen unit in the screen device will become blocked. Using star-shaped screen bodies with the method according to the invention prevents the screen unit from becoming blocked.
  • At least one screen unit of the screen device employed comprises cleaning brushes.
  • the cleaning brushes can be used in order to prevent the screen unit from becoming blocked by sticky masses. As a result, the risk of a jam or another kind of malfunction is reduced and the reliability of the method according to the invention is increased further.
  • the screen device for use with the method according to the invention comprises several screen units for splitting the fractions of rubble-containing soil into several discharge flows on the basis of size.
  • the supplied fractions of rubble-containing soil are split into several discharge flows by the screen units, with fractions having a size up to at least 80 mm, but preferably at least 60 mm being sifted out in a first discharge flow.
  • the fractions in the first discharge flow can be returned from the screen device to the crushing device.
  • the fractions of rubble-containing soil can be split further into several discharge flows, in particular at least a second, third and fourth discharge flow.
  • the smallest fractions, having a size of at most 20 mm, but preferably at most 12 mm are discharged in the finest, for example the fourth discharge flow.
  • the fractions in intermediate discharge flows are preferably subdivided in size between at least 12 mm and at most 60 mm, for example into fractions having a size which is between at least 12 mm and at most 35 mm, and at least 35 mm and at most 60 mm, respectively.
  • the method according to the invention comprises a step in which iron- containing fractions are removed from the crushing device, a screen feeder, the first discharge flow and/or the second discharge flow by means of a magnetic field. This is particularly advantageous because in a separating device for use with the method according to the invention, many iron-containing parts are thereby already separated at an early stage in the separating process in a simple manner.
  • the iron-containing parts such as reinforcing iron and ducts, as a result of their shape and toughness, could cause malfunctions in the grinding or screen device.
  • the iron-containing parts are removed at an early stage and the reliability of the separating process is increased.
  • Fig. 1 shows a diagrammatic top view of a separating device for carrying out the method according to the invention
  • Fig. 2 shows a diagrammatic side view of a screen device in the separating device as shown in Fig. 1; and Fig. 3 shows a diagrammatic representation of a sensor separator in the separating device as shown in Fig. 1.
  • Fig. 1 shows a schematic top view of a separating device which is suitable for carrying out the method according to the invention.
  • metal-containing parts are removed from rubble-containing soil.
  • the rubble-containing soil is fed to a crushing device 10 from a dump by means of an excavator.
  • the rubble-containing soil is often contaminated with various kinds of contaminations.
  • the rubble-containing soil is often sticky and wet on account of the high loam content.
  • the crushing device 10 has a bunker 11 for the supply of rubble- containing soil.
  • contra-rotating crushing shafts 12 are provided having crushing and/or cutting bodies for crushing the rubble-containing soil into small fractions.
  • the rubble-containing soil is pulled between the shafts and crushed and cut into small fractions.
  • metal-containing parts are exposed through the crushing process, so that they can be removed in a relatively simple manner.
  • the crushed fractions of rubble-containing soil are discharged from the crushing device via a discharge belt 13 and deposited on a screen feeder 25.
  • the fractions of rubble-containing soil on the discharge belt 13 are exposed to a magnetic field.
  • a permanent magnet 19 is arranged near the discharge belt 13 for removing iron-containing fractions.
  • the ground fractions of rubble-containing soil are fed to a screen device 20 comprising at least one screen unit 21 via the screen feeder 25.
  • the screen feeder 25 is in this case designed as a conveyor belt.
  • an electromagnet 28 is positioned for removing iron-containing fractions.
  • the screen feeder 25 opens into a bunker 26 of the screen device 20.
  • a metering mechanism 27 is provided which contributes to a gradual supply of fractions of rubble-containing soil to the screen units 21 of the screen device 20.
  • the fractions are separated on the basis of fraction size.
  • a first screen unit produces a first discharge flow 20.1.
  • the first screen unit 21 separates on the basis of a fraction size of at least 80 mm, but more preferably on the basis of a size of the fractions of at least 60 mm.
  • the large fractions of rubble-containing soil in the first discharge flow 20.1 are returned to the crushing device 10.
  • the screen device 20 in this case furthermore has a second, a third and a fourth discharge flow 20.2, 20.3, 20.4 of fractions of rubble-containing soil.
  • the fourth discharge flow 20.4 has a small fraction size preferably of up to at most 12 mm.
  • a magnetic separating unit 29.2, 29.3, 29.4 is positioned near each discharge flow in the screen device.
  • the magnetic separating unit 29.2, 29.3, 29.4 comprises a high-gradient magnet, preferably a lanthanide magnet and more preferably a neodymium magnet.
  • the magnet is placed in a reversing roller in a conveyor belt device in such a manner that iron- containing fractions follow a different path, separate from the other fractions, as they fall off the conveyor belt.
  • Such an arrangement of a magnet in a reversing roller for separating purposes is also referred to as a top roll magnet.
  • the third discharge flow 20.3 comprises fractions of rubble-containing soil of at least 12 mm to at most 35 mm.
  • the second discharge flow comprises fractions of rubble-containing soil of at least 35 mm up to at most 60 mm.
  • the second and third discharge flow 20.2, 20.3 are fed to a sensor separator 30 together.
  • the sensor separator 30 comprises a distributor 31 which is positioned upstream of a supply belt 32.
  • the fractions of rubble-containing soil are distributed over the supply belt 32 by the distributor 31.
  • Components of the distributor 31 which come into contact with the rubble-containing soil are provided with a PU coating. This coating advantageously prevents sticking of the fractions of rubble-containing soil to the parts of the distributor 31.
  • Rubble-containing soil sticking to parts of the distributor 31 plays a part in particular with soil having a high loam content.
  • a receptacle 34 is positioned at the end of the supply belt 32 of the sensor separator. The receptacle 34 is intended for holding metal- containing parts. Both iron-containing (in so far as they have not already been separated) and non-iron-containing parts are collected therein.
  • the sensor separator 30 has a discharge flow 38 for the fractions of rubble-containing soil from which the metal- containing parts have substantially been removed.
  • the separating device for carrying out the method according to the invention has been extended, as illustrated in Fig. 1 , by the part of the separating device which falls within the frame formed by broken lines.
  • the discharge flow 38 from the sensor separator 30 takes the fractions of rubble-containing soil to a metal detector 50.
  • the metal detector 50 may be provided as a last checking stage in the separating device for carrying out the method according to the invention in order to improve the reliability of the separating process further.
  • a magnetic separating unit 40 comprising a high-gradient magnet is placed upstream of the metal detector 50.
  • the high-gradient magnet is a lanthanide magnet and preferably a neodymium magnet.
  • the neodymium magnet is arranged inside a drum and has a high field strength of approximately 9500 Gauss, resulting in a high reliability in the separation of iron-containing parts.
  • a vibratory feeder is arranged upstream of the magnetic separating unit, whose components which come into contact with the fractions of rubble-containing soil are provided with a PU coating, thus preventing the fractions from sticking. Due to the strong high-gradient magnet, it is possible to also separate stainless steel-containing fractions with the magnetic separating unit 40, since the stainless steel-containing fractions have become slightly magnetic by being ground in the crushing device 10.
  • the iron- and stainless steel-containing fractions are discharged via a discharge belt 42. The remaining fractions of rubble-containing soil are passed through the metal detector 50.
  • the metal detector 50 passes the fractions of rubble-containing soil on to a conveyor belt 51 as separating unit.
  • the conveyor belt 51 a so-called reversing belt, can be switched and move in two directions.
  • the conveyor belt 51 usually carries away the fractions of rubble-containing soil further to a discharge belt 52, but when metal-containing parts are present, the direction of the conveyor belt 51 reverses and the fractions of rubble-containing soil are carried away to a collecting tray 54.
  • the fractions of rubble-containing soil which are carried away over the discharge belt 52 have been cleared of metal-containing parts with a high degree of reliability and are suitable for being admixed as replacement raw material for limestone or marl in the production of cement.
  • Fig. 2 shows a screen device 20 suitable for use in the separating device for separating metal-containing parts from rubble-containing soil, as illustrated in Fig. 1.
  • the screen device 20 comprises various screen units 21.
  • the screen units are of the star screen type.
  • a screen unit 21 of the star screen type has shafts with star-shaped screen bodies.
  • a star screen is particularly suitable as a screen unit for separating wet and sticky material, such as soil with a high clay content. The presence of the star-shaped bodies prevents the rubble-containing soil from sticking in the screen unit and thus the risk of blockages.
  • a plurality of screen units 21 are provided in the screen device for splitting the flow of fractions into several discharge flows on the basis of the size of the fractions.
  • the screen device 20 shown here is arranged so as to be mobile. On the bottom of the screen device 20, slides 22 are provided in order to make it possible to move the screen device in a simple manner.
  • the mobile screen device 20 may be provided with wheels.
  • the screen device comprises a bunker 26 which is provided with a metering mechanism 27.
  • the metering mechanism 27 comprises a distribution shaft having a threaded profile for the uniform supply of fractions of rubble-containing soil to the screen units 21.
  • the screen unit 21 may be provided with cleaning brushes.
  • the cleaning brushes By means of the cleaning brushes, the relatively fine screen units in particular are prevented from becoming blocked.
  • the screen unit 21 can be cleaned by regular brushing with the cleaning brushes, which is desirable, in particular with sticky soil.
  • Fig. 3 is a diagrammatic representation of a sensor separator 30 suitable for use in carrying out the method according to the invention.
  • the sensor separator 30 is designed to handle a capacity of approximately 20 tons/hour.
  • the sensor separator 30 comprises a supply belt 32 for supplying the fractions of rubble-containing soil.
  • the fractions are supplied on the supply belt 32 via a distributor 31.
  • the supply belt 32 has a length such that the fractions become substantially stationary on the supply belt 32.
  • the fractions are evenly distributed over the width of the supply belt 32 according to size in order to increase the reliability of the separating process.
  • the fractions are exposed to an electromagnetic field 35. Using a sensor 36, which in this case is situated below the supply belt 32, it is possible to measure a disturbance in the electromagnetic field 35.
  • a blow nozzle 33 is activated via a processor 37 as soon as a metal-containing part passes the blow nozzle 33.
  • a receptacle 34 is placed for the separate collection of metal-containing parts and other fractions. In this manner, the metal- containing part is separated from the other fractions of rubble-containing soil.
  • the method according to the invention is suitable for separating metal-containing parts from rubble-containing soil, resulting in alternative raw materials which can be used as additives for the production of cement.
  • the rubble-containing soil can be cleaned in an efficient and reliable manner and used as replacement raw material for a part of the limestone and marl.
  • the rubble-containing soil which has been cleaned of metal-containing parts by the method according to the invention can be used for other purposes, so that the rubble-containing soil does not have to be disposed of at a rubbish dump. This advantageously makes the method environmentally friendly and results in a cost saving. Key

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

La présente invention porte sur un procédé pour séparer des parties contenant du métal à partir d'un sol contenant des gravats. L'invention porte, en particulier, sur un procédé pour séparer substantiellement toutes les parties contenant du métal à partir d'un sol contenant des gravats éventuellement contaminé chimiquement à teneur élevée en argile. Le procédé comprend les étapes consistant à adresser l'écoulement de décharge contenant des gravats à un dispositif de broyage (10); à broyer l'écoulement de décharge contenant les gravats en fractions à l'aide du dispositif de broyage (10); à transporter les fractions jusqu'à un dispositif de crible (20); à séparer les fractions à l'aide du dispositif de crible (20) d'après la dimension des fractions en un premier écoulement de décharge (20.1) et un second écoulement de décharge (20.2); à adresser des fractions provenant d'un second écoulement de décharge (20.2) à un détecteur séparateur (30) pour séparer les parties contenant du métal; à recueillir les parties contenant du métal provenant du détecteur séparateur (30); et à décharger les fractions qui sont sensiblement exemptes des parties contenant du métal à partir du détecteur séparateur (30) dans un écoulement de décharge.
PCT/NL2008/000070 2007-03-05 2008-03-04 Procédé de séparation de parties contenant du métal à partir d'un sol contenant des gravats Ceased WO2008108635A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1033490A NL1033490C2 (nl) 2007-03-05 2007-03-05 Werkwijze voor het scheiden van metaalhoudende delen uit puinhoudende grond.
NL1033490 2007-03-05

Publications (1)

Publication Number Publication Date
WO2008108635A1 true WO2008108635A1 (fr) 2008-09-12

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ID=38713441

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL2008/000070 Ceased WO2008108635A1 (fr) 2007-03-05 2008-03-04 Procédé de séparation de parties contenant du métal à partir d'un sol contenant des gravats

Country Status (2)

Country Link
NL (1) NL1033490C2 (fr)
WO (1) WO2008108635A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102000630A (zh) * 2010-12-13 2011-04-06 长沙有色冶金设计研究院 铁精矿的制备工艺
RU2700742C1 (ru) * 2018-12-06 2019-09-19 Дахир Курманбиевич Семенов Способ автоматизированного приборного обогащения металлосодержащей руды и установка для автоматизированного приборного обогащения металлосодержащей руды (варианты)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3248493A1 (de) * 1982-12-29 1984-07-12 Lindemann Maschinenfabrik GmbH, 4000 Düsseldorf Verfahren zum rueckgewinnen von wertstoffen aus mischabfaellen der bauwirtschaft und anlage zum durchfuehren des verfahrens
NL1015530C2 (nl) * 2000-06-27 2001-12-28 Dema Milieutechniek B V Werkwijze en inrichting voor het zuiveren van grond.
DE10111305A1 (de) * 2000-11-30 2002-06-13 Juergen Schenk Vorrichtung und Verfahren zur Aufbereitung von Aushub
EP1344566A2 (fr) * 2002-03-13 2003-09-17 Fuji Jukogyo Kabushiki Kaisha Procédé et dispositif pour le tri de déchets d'un broyeur
WO2003093191A1 (fr) * 2002-05-06 2003-11-13 Re-Form System Co., Ltd. Procede de fabrication de ciment de recyclage
EP1433541A1 (fr) * 2000-01-27 2004-06-30 CommoDas GmbH Dispositif pour éjecter les fractions metalliques d'un flux de matières en vrac
EP1647331A1 (fr) * 2004-10-13 2006-04-19 Stadler Anlagenbau GmbH Procédé pour trier de déchets de matériaux de construction
WO2006041281A2 (fr) * 2004-09-03 2006-04-20 Recco B.V. Procede et dispositif de recuperation d'acier inoxydable a partir de residus d'acier dans des conditions seches

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3248493A1 (de) * 1982-12-29 1984-07-12 Lindemann Maschinenfabrik GmbH, 4000 Düsseldorf Verfahren zum rueckgewinnen von wertstoffen aus mischabfaellen der bauwirtschaft und anlage zum durchfuehren des verfahrens
EP1433541A1 (fr) * 2000-01-27 2004-06-30 CommoDas GmbH Dispositif pour éjecter les fractions metalliques d'un flux de matières en vrac
NL1015530C2 (nl) * 2000-06-27 2001-12-28 Dema Milieutechniek B V Werkwijze en inrichting voor het zuiveren van grond.
DE10111305A1 (de) * 2000-11-30 2002-06-13 Juergen Schenk Vorrichtung und Verfahren zur Aufbereitung von Aushub
EP1344566A2 (fr) * 2002-03-13 2003-09-17 Fuji Jukogyo Kabushiki Kaisha Procédé et dispositif pour le tri de déchets d'un broyeur
WO2003093191A1 (fr) * 2002-05-06 2003-11-13 Re-Form System Co., Ltd. Procede de fabrication de ciment de recyclage
WO2006041281A2 (fr) * 2004-09-03 2006-04-20 Recco B.V. Procede et dispositif de recuperation d'acier inoxydable a partir de residus d'acier dans des conditions seches
EP1647331A1 (fr) * 2004-10-13 2006-04-19 Stadler Anlagenbau GmbH Procédé pour trier de déchets de matériaux de construction

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102000630A (zh) * 2010-12-13 2011-04-06 长沙有色冶金设计研究院 铁精矿的制备工艺
RU2700742C1 (ru) * 2018-12-06 2019-09-19 Дахир Курманбиевич Семенов Способ автоматизированного приборного обогащения металлосодержащей руды и установка для автоматизированного приборного обогащения металлосодержащей руды (варианты)

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Publication number Publication date
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