EP2837425B1 - Vorrichtung zum Aussortieren von Nichteisenmetallen - Google Patents

Vorrichtung zum Aussortieren von Nichteisenmetallen Download PDF

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Publication number
EP2837425B1
EP2837425B1 EP13180265.4A EP13180265A EP2837425B1 EP 2837425 B1 EP2837425 B1 EP 2837425B1 EP 13180265 A EP13180265 A EP 13180265A EP 2837425 B1 EP2837425 B1 EP 2837425B1
Authority
EP
European Patent Office
Prior art keywords
vacuum chamber
grit
ferrous metal
particles
ferrous metals
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
EP13180265.4A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2837425A1 (de
Inventor
Claus Gronholz
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.)
TARTECH eco industries AG
Original Assignee
Tartech eco Ind AG
Tartech Eco Industries AG
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 Tartech eco Ind AG, Tartech Eco Industries AG filed Critical Tartech eco Ind AG
Priority to DK13180265.4T priority Critical patent/DK2837425T3/da
Priority to EP13180265.4A priority patent/EP2837425B1/de
Publication of EP2837425A1 publication Critical patent/EP2837425A1/de
Application granted granted Critical
Publication of EP2837425B1 publication Critical patent/EP2837425B1/de
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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
    • B03C1/23—Magnetic separation acting directly on the substance being separated with material carried by oscillating fields; with material carried by travelling fields, e.g. generated by stationary magnetic coils; Eddy-current separators, e.g. sliding ramp
    • B03C1/24—Magnetic separation acting directly on the substance being separated with material carried by oscillating fields; with material carried by travelling fields, e.g. generated by stationary magnetic coils; Eddy-current separators, e.g. sliding ramp with material carried by travelling fields
    • B03C1/247—Magnetic separation acting directly on the substance being separated with material carried by oscillating fields; with material carried by travelling fields, e.g. generated by stationary magnetic coils; Eddy-current separators, e.g. sliding ramp with material carried by travelling fields obtained by a rotating magnetic drum
    • 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
    • B03C2201/00—Details of magnetic or electrostatic separation
    • B03C2201/20—Magnetic separation of bulk or dry particles in mixtures

Definitions

  • the invention relates to a device for sorting non-ferrous metals from a non-ferrous metal-containing spreading material, with a conveyor and a non-ferrous metal separator, which is connected downstream of the conveyor in the conveying direction.
  • a device of the type mentioned, that is generic type is well known in the art, for example from the DE 20 2005 017 952 U1 ,
  • the material to be sorted is fed by means of a feed device to a conveyor, which conveys the grit to a non-ferrous metal separator.
  • the conveyor is designed as a belt section and has a guided around two pulleys conveyor or conveyor belt.
  • the non-ferrous metal separator is designed as a high-speed rotating magnetic system of permanent magnets and / or electromagnets and within the last in the conveying direction formed pulley of the conveyor, also called the pile drum arranged.
  • the functioning of a previously known non-ferrous metal separator operating on the basis of a rapidly rotating magnet system is the following:
  • the non-ferrous metal-containing spreading material is conveyed in the conveying direction by means of the conveying device.
  • the action of the non-ferrous metal separator on the Induction principle is based.
  • the fast rotating magnetic pole system disposed within the pole drum induces eddy currents in the high conductivity non-ferrous metals such as aluminum, copper, gold and / or the like at high frequency.
  • a device of the type mentioned above is proposed with the invention, which is characterized by a vacuum chamber and in which run the Abschflugbahnen the discarded by the conveyor grit particles within the vacuum chamber.
  • Previously known devices for sorting out non-ferrous metals achieve satisfactory sorting results with an average cross-sectional diameter size of the grit parts of 3 mm or larger.
  • the sorting results to be achieved are no longer satisfactory, that is to say the proportion of non-ferrous metals in the residual material flow is too high.
  • the rejection rate of non-ferrous metals decreases with the size of the particles or particles. The smaller the grit particles or particles, the lower the sorting rate.
  • grit particles can extremely small sizes up in have the ⁇ range. Nevertheless, they can have a significant percentage of the total grit, so that the sorting worthwhile.
  • the vacuum chamber provided according to the embodiment of the invention provides a remedy here, because the sorting in a vacuum also allows the separation of comparatively small grit particles, that is to say of particles having an average cross-sectional diameter of less than 3 mm.
  • the device according to the invention is particularly suitable for processing shredder fine fractions, slag or ash residues in particular from the thermal waste treatment and / or the like.
  • the eddy current force acting on conductive non-ferrous metals in the induced magnetic field of the non-ferrous metal separator is a Lorentz force. Among other things, this depends on the current density and the volume of a non-ferrous metal particle.
  • the force acting on a non-ferrous metal particle eddy current force which leads to a magnetic repulsion, that is, ejection of the non-ferrous metal particle from the mixture of the grit, depends on the particle size of the particle.
  • smaller eddy current forces act on smaller non-ferrous metal particles than on larger non-ferrous metal particles, which makes the sorting out of smaller non-ferrous metal particles from the grit more difficult.
  • the induced eddy current force counteracts disturbing forces.
  • the air resistance on the trajectory of rejected non-ferrous metal particles has a significant impact.
  • This circumstance has a disadvantageous effect, in particular with comparatively small non-ferrous metal particles, since due to their relatively small size, they act on only a relatively small eddy current force.
  • this results in that with conventional devices for sorting out non-ferrous metals no sufficiently good sorting results can be achieved with comparatively small grit particles, that is, with grit particles having an average cross-sectional diameter of less than 3 mm.
  • the air resistance acting on a particle is determined by the flow resistance force counteracting a particle flying through the air.
  • the flow resistance is dependent, among other things, on the air density. The smaller the Air density is, the smaller is the flow resistance force acting on the particles flying through the air.
  • the device according to the invention opens up a wider range of applications in contrast to the prior art. It is also possible advantageously to process smaller grit granulations, that is to say granulated material particle sizes, and to sort out non-ferrous metal particles.
  • the device according to the invention is particularly suitable for such spreading material, which have a predominantly comparatively small particle size, as is the case for example in the case of thermal or waste incinerating ashes or slag.
  • non-ferrous metal and / or the conveyor are arranged within the vacuum chamber.
  • This embodiment proves advantageous from a constructive point of view.
  • defined grit feeds and grit discharges can be created, which allow an air seal of the vacuum chamber relative to the ambient atmosphere.
  • rotary valves can be used for airtight completion.
  • the non-ferrous metal in the conveying direction downstream of a conveyor serves to promote non-ferrous metals on the one hand and residual grit on the other.
  • the conveying means is preferably disposed within the vacuum chamber and serves to supply the sorted spreading material of a first discharge of the vacuum chamber and a second discharge of the vacuum chamber.
  • the first discharge for the discharge of non-ferrous metals and the second discharge for the discharge of residual grit is provided.
  • FIG. 1 can be seen in a schematic view of an inventive device 1. This serves to sort out non-ferrous metals from a grit 2 containing non-ferrous metals.
  • the grit is a pourable grit with grit particles or particles, which are formed in the average diameter at least partially smaller than 3 mm, possibly even smaller, such as 2 mm, 1 mm, 0.5 mm or even smaller.
  • the grit 2 is conveyed via a feed device 3 to a conveyor 6.
  • the conveyor 6 is disposed within a vacuum chamber 5.
  • the vacuum chamber 5 has a scraper supply 18. This is equipped for airtight completion of the vacuum chamber 5 relative to the atmosphere surrounding the vacuum chamber 5 with a rotary valve 4.
  • the rotary feeder On the supply side, the rotary feeder has a funnel 20, by means of which the grit 2 leaving the feeder 3 is fed to the rotary feeder 4.
  • the feeder 2 leaving the rotary feeder 4 reaches the conveying device 6 arranged inside the vacuum chamber 5.
  • the latter has two Deflection rollers 9 and 10, wherein the deflection roller 10 is designed as a pole drum over which a conveyor belt 8 is guided in a conventional manner.
  • the with respect to the drawing plane after Fig. 1 right guide roller 10 serves as a so-called head or pole drum and includes a known from the prior art per se non-ferrous metal 7, which in turn has a rotating at high speed magnet system of permanent and / or electromagnet.
  • the given on the conveyor 6 grit 2 is in the direction of in Fig. 1 plotted arrows transported and reaches the pole drum 10 of the conveyor 6, where there is a magnet-induced eddy current generation in the non-ferrous metal particle of the grit 2.
  • the residual grit describes the trajectory designated by 12.
  • an adjustable separating plate 11 which forms a vertex, due to the different trajectories 12 and 13, a separation of the grit 2 in non-ferrous metals, that is grit particles with non-ferrous metal content and residual grit occur.
  • a negative pressure prevails in the volume space 21 surrounding the vacuum chamber 5.
  • This embodiment according to the invention causes the particles ejected by the conveyor 6 to counteract a reduced flow resistance force, which advantageously has the consequence that the magnetic-field-induced eddy current force is sufficient, even with respect to relatively small grit particles, around the trajectory designated 13 and behind the separating plate 11 to describe.
  • a conveyor 14 is connected downstream.
  • this has two screw conveyors 15, wherein a first screw conveyor 15 of the fraction of non-ferrous metals and the second screw conveyor 15 is assigned to the fraction of the remaining scattered material.
  • Both augers 15 have on the output side via a discharge, wherein the first discharge 16 is the non-ferrous metals and the second discharge 17 associated with the residual grit.
  • a discharge of the separated material to be spread 2 takes place from the negative pressure chamber 5, wherein for sealing the vacuum chamber 5 relative to the surrounding atmosphere corresponding rotary valves 4 may be provided, which in Fig. 1 is not shown in detail.

Landscapes

  • Manufacture And Refinement Of Metals (AREA)
EP13180265.4A 2013-08-13 2013-08-13 Vorrichtung zum Aussortieren von Nichteisenmetallen Active EP2837425B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DK13180265.4T DK2837425T3 (da) 2013-08-13 2013-08-13 Indretning til udsortering af ikke-jernmetaller
EP13180265.4A EP2837425B1 (de) 2013-08-13 2013-08-13 Vorrichtung zum Aussortieren von Nichteisenmetallen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13180265.4A EP2837425B1 (de) 2013-08-13 2013-08-13 Vorrichtung zum Aussortieren von Nichteisenmetallen

Publications (2)

Publication Number Publication Date
EP2837425A1 EP2837425A1 (de) 2015-02-18
EP2837425B1 true EP2837425B1 (de) 2019-11-06

Family

ID=49035297

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13180265.4A Active EP2837425B1 (de) 2013-08-13 2013-08-13 Vorrichtung zum Aussortieren von Nichteisenmetallen

Country Status (2)

Country Link
EP (1) EP2837425B1 (da)
DK (1) DK2837425T3 (da)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202005017952U1 (de) 2005-11-15 2007-03-29 Wagner Magnete Gmbh & Co. Kg Vorrichtung zum Trennen von Nichteisenmetallen enthaltendes Trenngut
US20110017644A1 (en) * 2009-07-21 2011-01-27 Valerio Thomas A Method and System for Separating and Recovering Like-Type Materials from an Electronic Waste System
BE1019958A5 (nl) * 2011-04-28 2013-03-05 Ad Rem N V Inrichting voor het verwerken van shredderresidu.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
DK2837425T3 (da) 2020-02-17
EP2837425A1 (de) 2015-02-18

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