EP3538281A1 - Dispositif optimisé de séparation de produits - Google Patents
Dispositif optimisé de séparation de produitsInfo
- Publication number
- EP3538281A1 EP3538281A1 EP17794353.7A EP17794353A EP3538281A1 EP 3538281 A1 EP3538281 A1 EP 3538281A1 EP 17794353 A EP17794353 A EP 17794353A EP 3538281 A1 EP3538281 A1 EP 3538281A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- zone
- endless belt
- products
- conveyor
- drum
- 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- Withdrawn
Links
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
- B03C1/16—Magnetic separation acting directly on the substance being separated with material carriers in the form of belts
- B03C1/18—Magnetic separation acting directly on the substance being separated with material carriers in the form of belts with magnets moving during operation
-
- 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
Definitions
- the present invention relates to a device for separating products, especially waste.
- the invention particularly relates to the field of sorting mixed solids of small particle size, generally passing a mesh up to 15x15 mm, such as mainly those from incineration (slag) or waste grinding (RBA , D3E, DIB, etc.).
- fines are isolated to facilitate the treatment of the largest fractions of waste. These fines, although representing large volumes rich in ferrous and non-ferrous metals, are often buried, lack of profitability of the treatment operation or simply lack of available technology.
- the object of the invention is notably to propose a product treatment separator capable of effectively treating fines.
- the subject of the invention is, in particular, a device for separating products, characterized in that it comprises:
- a screen having a screening surface extending longitudinally along a screen length and transversely along a screen width
- a conveyor comprising an endless belt wrapped around a first drum and a second drum, the endless belt having a width greater than or equal to the width of the screen, and the first and second drums being spaced apart from each other; a distance greater than the screen length, the endless band being arranged below and directly to the right of the screening surface, so that the screening surface is suitable for sprinkling products directly on the endless belt,
- a first ballistic distribution flap arranged in front of the conveyor, delimiting a first zone and a second zone for receiving products according to their shapes and densities
- a second magnetic distributor flap arranged below the conveyor, defining the second zone and a third product receiving zone according to their iron content.
- the screening surface has dimensions smaller than those of the conveyor belt, and it is arranged above and directly to the right of this conveyor belt, so that it allows the conveyor belt to be sprinkled in a monolayer manner with the conveyor belt. fines passing through the screening surface.
- the fines introduced in monolayer on the endless belt can effectively feed the magnetic and ballistic separator.
- the separation device according to the invention is effective, has a good flow and is economical to use.
- a separation device according to the invention may further comprise one or more of the following characteristics, taken alone or in any technically feasible combination:
- the first and second flaps are adjustable in position and / or orientation.
- the separation device comprises a third distribution flap defining the third receiving zone with the second flap, the third flap is preferably adjustable in position and / or orientation.
- the conveyor is configured to move the endless belt with a speed between 1, 5 and 6 meters per second.
- the separation device comprises means for purifying the fraction of products of the third zone comprising: a second conveyor comprising a second endless band, the third zone being carried by this second endless band, and comprising a front drum; and a rear drum between which is stretched the second endless belt, - a second magnetic rotor housed in the front drum, and - a fourth separating flap, arranged below the second convoyaur and separating a fourth conductive element receiving zone. a fifth pollutant receiving zone.
- the invention also relates to a method for separating products by means of a separation device as defined above, characterized in that it comprises:
- the method comprises the preliminary adjustment of the speed of the endless belt to ensure the sprinkling in monolayer of fine products on the endless belt.
- FIG. 1 shows schematically, in profile, a separation device according to an exemplary embodiment of the invention
- FIG. 2 schematically represents, in a sectional plane A-A of FIG. 1, a screen and a conveyor of the separation device of FIG.
- FIG. 1 shows a device S for separating products.
- the separation device S comprises a screen 1 having an inlet 1a through which products to be treated are introduced, along the arrow P1, using any known continuous feed device, for example a belt conveyor without end or a vibrating trough.
- the screen 1 also comprises a screening surface 1b, having a relatively fine screening mesh, of the type and dimensions selected according to the nature of the products to be treated.
- the meshes are dimensioned to less than 15 mm, in particular 8 mm or 6 mm.
- the screen 1 has an output 1c of a coarse grain size fraction (the non-passers of the selected mesh), this coarse grain size fraction being discharged along the arrow P2 in a manner known per se.
- This coarse particle size fraction may optionally be further processed, including a ferrous and non-ferrous metal extraction treatment.
- fine products passes through the screening surface 1b.
- This screening surface has a screen length L1, visible in FIG. 1, and a screen width L2, visible in FIG. 2.
- the separating device S further comprises a conveyor 2 comprising an endless belt 3.
- the endless belt 3 is wrapped around a first drum 4 and a second drum 5, driving the endless belt 3 in a direction designated by the arrow P3.
- the first drum 4 is a return drum arranged at the front of the conveyor 2 and the second drum 5 is arranged at the rear of the conveyor 2.
- the endless belt 3 has a bandwidth L3 greater than or equal to the screen width L2, as shown in FIG. 2.
- first 4 and second 5 drums are spaced a distance greater than the length of the screen L1.
- the endless belt 3 is arranged below and directly to the right of the screening surface 1b, so that the screening surface is suitable for sprinkling fine products directly on the endless belt 3.
- the Screening surface 1b extends integrally above the endless belt 3, and preferably parallel to it.
- the fine products fall directly on the band 3 without encountering obstacles during their fall (especially without contact with the least baffle and / or wall), so that the sieve 1 can sprinkle the product on the endless belt 3 to obtain a uniformly distributed layer that tends towards the perfect monolayer.
- the speed of the endless belt 3 is adjusted to ensure such a monolayer.
- this speed is greater than 1 m / sec, especially between 1.5 m / sec and 6 m / sec.
- the first drum 4 comprises a multipole magnetic rotor 4a.
- This magnetic rotor 4a comprises a succession of magnets which are arranged in such a way that magnetic north poles and south magnetic poles alternate either radially or axially peripherally.
- Such a magnetic rotor 4a known per se, will not be described in detail.
- the first drum 4 also comprises a geared motor (not shown) driving the magnetic rotor 4a, and therefore the endless belt 3 at an adjustable speed.
- the separating device S comprises a first ballistic distribution flap 8, arranged in front of the conveyor 2, delimiting a first zone A and a second zone B for receiving products according to their shapes and densities.
- the speed setting will therefore take into account the ability of the product to adhere to the endless belt 3.
- the conveyor 2 comprises a support ramp 6, on which the endless belt 3 slides in an upstream part of its forward path.
- This support ramp 6 guides the endless belt and supports the weight of the mixture of heterogeneous materials during the passage thereof.
- the support ramp 6 guides the endless belt 3 of the conveyor 2 and, in doing so, defines the shape of an upstream portion of the forward path of this endless belt 3.
- This forward path of the endless belt 3 comprises a first section upstream of reception of the pass of the screen 1, facing the screening surface 1b, followed by a second section at which the material mixture starts at the speed of the endless belt 3, then a third sorting section at the magnetic rotor 4a.
- the magnetic rotor 4a is at the sorting section, where a separation among the materials of the mixture takes place.
- this separation is ballistic, but it is also magnetic thanks to the magnetic rotor 4a.
- the separation device S comprises a second magnetic distributor flap 7, arranged below the conveyor 2, delimiting the second zone B and a third zone C for receiving products according to their iron content.
- the mixture of heterogeneous materials comprises magnetically conductive elements but also non-conductive elements of the magnetic field.
- these non-conductive elements may be of mineral origin mixed with water, ash and non-ferrous metals, in the case of crushed waste, they may be made of cardboard, plastic and / or ceramic for example.
- the magnetic rotor 4a At the sorting section, the magnetic rotor 4a generates a rotating magnetic field, which passes through the endless belt 3 and sweeps over this band 3.
- the material mixture is subjected to a magnetic field that attracts the conductive elements.
- the deflection by the magnetic field takes place in the direction of the winding of the band 3 on the rotor 4.
- the band 3 moves these elements away from the magnetic rotor so that they leave the influence of the magnetic field so that by gravity they fall into the third zone C.
- this third zone C is limited by a third distribution flap 13.
- the first 8, second 7 and third 13 flaps are advantageously adjustable in orientation and / or in position.
- the elements of the mixture that are not conductive magnetic field will, with the speed of the band, be projected in the vacuum and will follow different paths. These trajectories depend on the density, the shape, the size of each element but also their ability to adhere to the band 3, due for example to the presence of water. From a certain speed of the band 3, with the aid of the first distribution flap 8, it is possible to find a trajectory that segments the remainder of the mixture, on one side into a mineral fraction mixed with almost all non-ferrous metals (first zone A), and on the other, a mixture of low density elements and / or water and or ultrafine particles (second zone B).
- the separation device S comprises means 15 for purifying the product fraction of the third zone C.
- These purification means 15 comprise a second conveyor 9 comprising an endless belt 14.
- the third zone C is carried by this endless belt 14.
- the endless belt 14 of the second conveyor 9 is stretched by two end drums opposite one another, namely a return drum 10 at the inlet and a magnetic rotor 11 which acts as a drum. return output.
- the arrow P4 symbolizes the direction of progression of the endless belt conveyor 9 driven at least by the magnetic rotor 1 January.
- the endless belt 14 conveys the mixture of the third zone C, rich in conductive elements of the magnetic field, in the sorting zone, at a multipolar magnetic rotor 11 similar to the magnetic rotor 4 of the conveyor 2.
- a geared motor (not shown) drives the magnetic rotor 1 1, and therefore the endless belt 14 at an adjustable speed so that the mixture of the third zone C is distributed in monolayer on the strip 14.
- the purification device 15 comprises a fourth separation flap 12, which isolates the conductive elements of the magnetic field (towards a fourth zone D) of the polluting elements (towards a fifth zone E).
- the invention allows a supply of the sorting zone in monolayer, ensuring optimal efficiency of ballistic and magnetic separations.
- the separation device S by combining screening, magnetic and ballistic separation operations, makes it possible to obtain three distinct fractions:
- the method comprises:
- the method comprises the prior adjustment of the speed of the endless belt 3 to ensure that the fine products are sprinkled with monolayer on the endless belt 3.
- the process advantageously comprises the separation of the products of the third zone C, thanks to the purification device 15.
Landscapes
- Processing Of Solid Wastes (AREA)
- Sorting Of Articles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1660916A FR3058330B1 (fr) | 2016-11-10 | 2016-11-10 | Dispositif optimise de separation de produits |
PCT/EP2017/078919 WO2018087306A1 (fr) | 2016-11-10 | 2017-11-10 | Dispositif optimisé de séparation de produits |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3538281A1 true EP3538281A1 (fr) | 2019-09-18 |
Family
ID=57796621
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17794353.7A Withdrawn EP3538281A1 (fr) | 2016-11-10 | 2017-11-10 | Dispositif optimisé de séparation de produits |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3538281A1 (fr) |
FR (1) | FR3058330B1 (fr) |
WO (1) | WO2018087306A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108789174B (zh) * | 2018-06-04 | 2020-04-21 | 金华职业技术学院 | 一种用于钢棒磨粒流的流体精密分离装置 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US536226A (en) * | 1895-03-26 | Magnetic separator | ||
US4834870A (en) * | 1987-09-04 | 1989-05-30 | Huron Valley Steel Corporation | Method and apparatus for sorting non-ferrous metal pieces |
DE19521415C2 (de) * | 1995-06-14 | 1997-07-03 | Lindemann Maschfab Gmbh | Anordnung zum Abtrennen von nichtmagnetisierbaren Metallen aus einem Feststoffgemisch |
DE102006021558B4 (de) * | 2006-05-08 | 2011-06-16 | Heidemann Recycling Gmbh | Anlage zur kombinierten Siebung und Nichteisenmetallscheidung |
EP2289628B1 (fr) * | 2009-08-27 | 2014-06-18 | Lux Magnet | Séparateur magnétique à courant de foucault avec zone d'interaction et trajectoire optimisées des particules |
-
2016
- 2016-11-10 FR FR1660916A patent/FR3058330B1/fr active Active
-
2017
- 2017-11-10 EP EP17794353.7A patent/EP3538281A1/fr not_active Withdrawn
- 2017-11-10 WO PCT/EP2017/078919 patent/WO2018087306A1/fr unknown
Also Published As
Publication number | Publication date |
---|---|
FR3058330A1 (fr) | 2018-05-11 |
WO2018087306A1 (fr) | 2018-05-17 |
FR3058330B1 (fr) | 2019-01-25 |
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