WO2013063712A1 - Magnetic drum for the magnetic separation of iron particles, including at least 18 straight magnetic plates - Google Patents

Magnetic drum for the magnetic separation of iron particles, including at least 18 straight magnetic plates Download PDF

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Publication number
WO2013063712A1
WO2013063712A1 PCT/CL2011/000084 CL2011000084W WO2013063712A1 WO 2013063712 A1 WO2013063712 A1 WO 2013063712A1 CL 2011000084 W CL2011000084 W CL 2011000084W WO 2013063712 A1 WO2013063712 A1 WO 2013063712A1
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WO
WIPO (PCT)
Prior art keywords
magnetic
drum
magnetic separation
iron particles
approximately
Prior art date
Application number
PCT/CL2011/000084
Other languages
Spanish (es)
French (fr)
Inventor
Luis CAVERO ROSALES
Original Assignee
Cavero Rosales Luis
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
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Application filed by Cavero Rosales Luis filed Critical Cavero Rosales Luis
Priority to CN201180076172.1A priority Critical patent/CN104039457A/en
Priority to US14/355,719 priority patent/US20140299518A1/en
Priority to BR112014010652A priority patent/BR112014010652A2/en
Publication of WO2013063712A1 publication Critical patent/WO2013063712A1/en

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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
    • B03C1/025—High gradient magnetic separators
    • B03C1/031—Component parts; Auxiliary operations
    • B03C1/033—Component parts; Auxiliary operations characterised by the magnetic circuit
    • B03C1/0332—Component parts; Auxiliary operations characterised by the magnetic circuit using permanent magnets
    • 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 whereby the particles to be separated are in solid form

Definitions

  • Magnetic drum for magnetic separation of iron particles comprising at least 18 straight magnetic plates.
  • the invention relates to the magnetic separation of iron from iron sands.
  • the present invention relates to a magnetic drum for magnetic separation of iron, to the method of manufacturing said drum and to the method of magnetic separation of iron from iron sands.
  • the magnetic separation corresponds to a process that serves to separate solid particles no larger than 7 mm, from, where one of the solids to be separated must be ferrous or have magnetic properties.
  • a magnetic separation process consists in bringing a magnet closer to the solids mixture, in order to generate a magnetic field, which is capable of attracting ferrous particles and leaving non-ferrous particles behind. The success of the process will depend on the capacity of the magnet and the amount of ferrous particles that exist in the mixture, that is to say the concentration of ferrous particles in the mixture.
  • JP 2009172589 describes a rotary drum type magnetic separator has a rotary drum which has a rotating inner cylinder arrangement with 2 or 3 magnets and an outer cylinder made of non-magnetic material that rotates concentrically around the inner cylinder. In the inner cylinder the magnets are placed circumferentially.
  • JP 2001121028 corresponds to a magnetic classifier having a first and second fixed discs comprising a magnetic material. First and second annular permanent magnets are fixed to the inner surface opposite to the first and second discs and a protective cover comprising a non-magnetic material that continuously covers the peripheral outer part of the first and second permanent magnets.
  • the first and second permanent magnets have a part that generates magnetism of which the same polar polar magnetic poles are opposite each other through the hole, to generate magnetic fields outside the radial direction.
  • JP 10165838 describes an apparatus that is constituted by a rotating drum in which the low quality material to be classified is directly fed and on which a plurality of chutes (ramps) are placed for the recovery of the material classified under the rotating drum; a pipe made of non-magnetic material inside the rotating drum and a protective pipe to protect the previous pipe; in the interior space of the rotary drum there is a rotary rotor which has a plurality of permanent magnets arranged in the peripheral direction with similar poles adjacent to each other.
  • the patent document US 4693812 corresponds to a magnetic separator of materials that includes an axially inclined drum arranged for axial rotation within the curvature of a structure of an arched magnet which extends axially in the drum and is arranged in a space closed together with the outer surface of the drum.
  • the magnet structure comprises a series of yokes of axially extended arcuate magnets, each comprising an axial laminate to form subassemblies of an arcuate magnet, which are alternately polarized in opposite axial directions.
  • Each of the subassemblies comprises an axially polarized arched magnet intercalated between an arcuate pair of a concentrated smooth magnetic flux which has respective axial thicknesses between 5 and 20 percent of half the axial thickness of the intercalated magnets.
  • Document CL 33.035 corresponds to a roller for use in a magnetic separator composed of permanent magnetic layers, which have opposite polarities in opposite phases and ferromagnetic layers between adjacent phases of the same polarity facing each other, so that the ferromagnetic layers alternate in the polarities of their edges exposed to the surface of the roller, where the ferromagnetic layers are made as thin as possible and that their exposed edges cover 30% or less of the surface of the roller covered by both layers, and the magnetic layers are composed of an appropriate permanent magnetic material.
  • an objective of the present invention is to have a magnetic drum that allows to separate ferrous particles and that is suitable for separating ferrous particles that are in low concentration. Specifically, it is desired to have a magnetic drum that allows iron to be separated from iron sands, including those sands that have a low percentage of iron.
  • Another objective of the present invention is to have a method of manufacturing a magnetic drum.
  • Another objective of the present invention is to have a method for separating iron particles from solid mixtures, specifically from iron sands.
  • the present invention corresponds to a magnetic drum for magnetic separation of iron, which comprises an outer body or mantle and an inner part or core, also has a central axis which has several discs of equal diameter, fitted every certain distance, along of the entire central axis.
  • Parallels with magnets along the length of the cylinder are located parallel to the central axis, which are attached to the perimeter contours of the discs.
  • the plates with magnets or magnetic bars are distributed uniformly with respect to the perimeter of the discs, and between bar and bar there should be a free space.
  • Figures 1 and 8 show a view of the outer body or mantle of the magnetic drum of the present invention.
  • Figures 2 and 3 show views of the core of the magnetic drum of the present invention, with and without magnetic bars.
  • Figure 4 is a view of finished magnetic drums of the present invention.
  • Figures 5 and 6 show views of the magnetic drum installed in its metal case.
  • Figure 7 is another view of the magnetic drum installed in its metal case.
  • Figure 9 shows a plan view of the magnetic drum core.
  • Figure 10 is another view of the magnetic drum installed in its metal case.
  • the present invention relates to a magnetic drum (1) for magnetic separation of iron, comprising an outer body or cylindrical mantle (2) with side covers (3) at each of its ends; and an inner part or core (7) formed by at least eight discs (4) with their respective disc reinforcements (10); a central axis (6) along the entire core; a tube (9) covering the central part of the axis; and at least 18 to 20 plates (5) located on the outer surface of the core in the longitudinal direction of the core.
  • the present invention furthermore relates to a system for magnetic separation of iron comprising the magnetic drum (1); boxes with their support and rotation bearings to hold the drum; a metal box (8) that serves as support and protection of the drum; two motorcycle reducers with their respective axles, drive chains and pulleys toothed; two conveyor belts installed under the metal box; two metal discharge boxes to receive the ore that the magnetic drum throws (rejection and / or concentrate); an electrical panel; a feeding mailbox that is installed on top of the magnetic drum; and a flow regulator.
  • the present invention further describes the method of assembling the system for magnetic separation of iron particles.
  • the present invention further relates to the magnetic separation process for separating iron particles from ferrous sands.
  • the magnetic drum (1) comprises an outer body or mantle (2) of stainless steel, with a hollow cylindrical shape, with smooth walls, with a flat flange at each of its ends.
  • the length of the mantle is approximately 3,000 mm and its diameter of approximately 920 mm.
  • Each of the flat flanges has perforations along its entire diameter which will serve to fix the side covers (3) at each of its ends.
  • the covers are made of stainless steel and have approximately 940 mm in total diameter, its perimeter is formed by a flat flange with identical perforations to those of the mantle.
  • the fixing between the mantle and the covers is made with stainless steel bolts and nuts.
  • the magnetic drum has a core (7) made of normal structural iron, which is formed by at least eight discs (4) in plate approximately 2 mm thick and approximately 890 mm in diameter, which are located evenly distributed, which have their respective disk reinforcements (10), and attached to a central shaft (6) made of chrome-nickel steel approximately 3,400 mm long and approximately 120 mm in diameter, where the axis has a tube (9 ) that covers the central part of your body; and at least 18 to 20 straight magnetic plates (5) approximately 3,000 mm long that are located radially on the outer surface of the core with a separation of approximately 100 to 140 mm between one plate and the other and that are supported on the disks.
  • a core (7) made of normal structural iron, which is formed by at least eight discs (4) in plate approximately 2 mm thick and approximately 890 mm in diameter, which are located evenly distributed, which have their respective disk reinforcements (10), and attached to a central shaft (6) made of chrome-nickel steel approximately 3,400 mm long and approximately 120 mm in diameter, where the axis
  • the function of the tube (9) is to rotate the inner discs and the magnets that are attached to the plates, which in turn are attached to the discs.
  • One side of the shaft guides the inner disks and the other side of the shaft goes to a mechanical system that attaches to the side disk of the mantle, which rotates the core independently.
  • the mechanical system is made up of two lateral supports incorporating two scrapes that rotate the core and mantle independently.
  • the magnetic separation system comprises the magnetic drum (1); two boxes with their bearings of support and rotation that are placed one in each end of the drum, once this has been armed; a metal box (8) approximately 3,200 mm long and approximately 1,620 mm wide, which serves as protection and support, since it is suitable for installation in a support structure; two motorcycle reducers with their respective shafts and toothed pulleys; two conveyor belts; two metal discharge boxes for the discharge of the ore thrown by the magnetic drum (rejection and / or iron concentrate); an electrical board with its frequency inverters; a feeding mailbox that is installed in the upper part of the magnetic drum that has a funnel shape and whose function is to receive the mineral to be concentrated and then be distributed on the surface of the magnetic drum, specifically the mailbox is mounted on the metal box (8 ) and in the lower part it has an end-to-end funnel opening, which allows the feed to the magnetic drum to be documented; and a flow regulator.
  • the central shaft and the boxes with their support and rotation bearings allow the drum to rotate by rotating the mantle counterclockwise.
  • the box with its bearings corresponds to the rest of the core shafts.
  • the magnetic drum has a direction of rotation and the magnetic core has an opposite rotation to the drum, this rotation of the core has a speed of approximately 30 to 90 rpm, achieving that the magnetic fields are reduced and in this way, to be able to exert a magnetic field uniform.
  • the metal box (8) serves to protect, hold and guide the magnetic drum, both ends of the shaft are taped in a bearing housing that are identified as shaft rests.
  • the system assembly procedure includes the following steps: - proceed to the installation of the magnetic drum inside the metal box to contain the drum, once the magnetic drum has been built, placing the drum in the center of said box and with the precaution of leave a space of approximately 500 mm for the evacuation of the sterile material and a space of approximately 200 mm for the iron concentrate; - install, on the two lateral ends of the axle, a mechanical system with a toothed pulley based on two reduction gears with their respective shafts and toothed pulleys which exert the motor movement through the chain, where the diameter of the toothed pulleys and the power of the reducing motorcycles will depend on the type of material to be concentrated, for example sands or magnetite particulate;
  • a feeding mailbox for the reception of the material to be treated in the drum, whose function is to receive the mineral to concentrate and then distribute it on the surface of the magnetic drum and in the lower part the metal boxes of discharge;
  • the magnetic separation process comprises treating materials such as ferrous sands and magnetite particles no larger than 12 mm, the flow ranges to be treated at approximately 200 tons per hour.
  • the method of magnetic separation for separation of iron particles comprises:
  • each reducing motor gives an inverse movement to the mantle and another to the core and when fed the drum by the flow regulator
  • the iron concentrate films follow the direction of rotation of the magnetic core and are received by the metal discharge box, which moves them to the conveyor belt for collection
  • particles ( rejected) follow the direction of rotation of the mantle and are received by the other metal discharge box, which moves them to the rejection conveyor belt or non-magnetic particles.
  • the metal box (8) has an angle (11) where the box rests as a support structure and allows to support and feed the magnetic drum, allows the magnetic material in its concentration and / or rejection process not to be lost outside the box, that is to say, it fulfills the function of retention of the material or mineral in process and allows to guide the ore to be unloaded on each conveyor belt guiding the rejected and / or concentrated material to their respective discharge boxes.
  • the magnetic drum is used to separate iron from iron sands and can separate iron into sands of low percentage, such as 2%.
  • the drum is regulated to operate with magnets of approximately .500 Gauss.
  • the magnetic separation procedure allows to obtain concentrations greater than 65% of law, with a single treatment pass.

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  • Manufacture And Refinement Of Metals (AREA)

Abstract

The invention relates to a magnetic drum for magnetic separation of iron particles from ironsand, which includes an outer body or hollow cylindrical casing; two side covers, one for each end of the casing; and an inner body or core which includes sheet—metal discs, evenly distributed and connected to a central shaft, and at least 18 straight magnetic plates which are positioned radially on the outer surface of the core and which are supported by the discs. The invention also describes the magnetic separation system for the magnetic separation of iron particles from ironsand, which includes a magnetic drum such as described above, two boxes with the corresponding support and rotation bearings thereof, positioned at either end of the drum, a metal box for holding the drum, two gear motors with the corresponding shafts and cog belts, two metal delivery boxes; an electrical panel having variable frequency drives, a loading bin and a flow regulator. In addition, the invention describes a method for arming the magnetic separation system for the magnetic separation of iron particles from ironsand and the magnetic separation method for separating iron particles from ironsand.

Description

MEMORIA DESCRIPTIVA  DESCRIPTIVE MEMORY
Tambor magnético para separación magnética de partículas de hierro, que comprende por lo menos 18 platinas rectas magnéticas. Magnetic drum for magnetic separation of iron particles, comprising at least 18 straight magnetic plates.
Campo de la Invención Field of the Invention
La invención se relaciona con la separación magnética de hierro desde arenas férricas.  The invention relates to the magnetic separation of iron from iron sands.
La presente invención se relaciona con un tambor magnético para separación magnética de hierro, con el procedimiento de fabricación de dicho tambor y con el procedimiento de separación magnética de hierro desde arenas férricas.  The present invention relates to a magnetic drum for magnetic separation of iron, to the method of manufacturing said drum and to the method of magnetic separation of iron from iron sands.
Antecedentes de la Invención Background of the Invention
La separación magnética corresponde a un proceso que sirve para separar partículas sólidas no mayor a 7 mm, de, donde uno de los sólidos que se desea separar deber ser ferroso o tener propiedades magnéticas. En general un procedimiento de separación magnética consiste en acercar un imán a la mezcla de sólidos, con el fin de generar un campo magnético, que sea capaz de atraer a las partículas ferrosas y dejar atrás a las partículas no ferrosas. El éxito del procedimiento dependerá de la capacidad del imán y de la cantidad de partículas de ferrosa que existan en la mezcla, es decir de la concentración de partículas ferrosas en la mezcla.  The magnetic separation corresponds to a process that serves to separate solid particles no larger than 7 mm, from, where one of the solids to be separated must be ferrous or have magnetic properties. In general, a magnetic separation process consists in bringing a magnet closer to the solids mixture, in order to generate a magnetic field, which is capable of attracting ferrous particles and leaving non-ferrous particles behind. The success of the process will depend on the capacity of the magnet and the amount of ferrous particles that exist in the mixture, that is to say the concentration of ferrous particles in the mixture.
El documento JP 2009172589 describe un separador magnético tipo tambor rotatorio tiene un tambor rotatorio el cual tiene un arreglo de cilindro interior rotatorio con 2 o 3 magnetos y un cilindro exterior hecho de material no magnético y que rota concéntricamente alrededor del cilindro interior. En el cilindro interior los magnetos son colocados circunferencialmente. El documento JP 2001121028 corresponde a un clasificador magnético que tiene un primer y segundo discos fijos que comprenden un material magnético. Unos primeros y segundos magnetos permanentes anulares están fijos a la superficie interior opuesta a los primeros y segundos discos y una cubierta protectora que comprende un material no magnético que continuamente cubre la parte exterior periférica de los primeros y segundos magnetos permanentes. Los primeros y segundos magnetos permanentes tienen una parte que genera magnetismo de la cual los mismos polos magnéticos en polaridad son opuestos uno respecto al otro a través del orificio, para generar campos magnéticos fuera de la dirección radial. JP 2009172589 describes a rotary drum type magnetic separator has a rotary drum which has a rotating inner cylinder arrangement with 2 or 3 magnets and an outer cylinder made of non-magnetic material that rotates concentrically around the inner cylinder. In the inner cylinder the magnets are placed circumferentially. JP 2001121028 corresponds to a magnetic classifier having a first and second fixed discs comprising a magnetic material. First and second annular permanent magnets are fixed to the inner surface opposite to the first and second discs and a protective cover comprising a non-magnetic material that continuously covers the peripheral outer part of the first and second permanent magnets. The first and second permanent magnets have a part that generates magnetism of which the same polar polar magnetic poles are opposite each other through the hole, to generate magnetic fields outside the radial direction.
El documento JP 10165838 describe un aparato que está constituido por un tambor rotatorio en el cual el material de baja calidad que se quiere clasificar es directamente alimentado y sobre el cual es puesto una pluralidad de chutes (rampas) para la recuperación del material clasificado bajo el tambor rotatorio; una cañería hecha de material no magnético dentro del tambor rotatorio y una cañería protectora para proteger la anterior cañería; en el espacio interior del tambor rotatorio hay un rotor rotatorio el cual tiene una pluralidad de magnetos permanentes arreglados en la dirección periférica con polos semejantes contiguos uno del otro. JP 10165838 describes an apparatus that is constituted by a rotating drum in which the low quality material to be classified is directly fed and on which a plurality of chutes (ramps) are placed for the recovery of the material classified under the rotating drum; a pipe made of non-magnetic material inside the rotating drum and a protective pipe to protect the previous pipe; in the interior space of the rotary drum there is a rotary rotor which has a plurality of permanent magnets arranged in the peripheral direction with similar poles adjacent to each other.
El documento de patente de invención US 4693812 corresponde a un separador magnético de materiales que incluye un tambor inclinado axialmente dispuesto para rotación axial dentro de la curvatura de una estructura de un imán arqueado el cual se extiende axialmente en el tambor y es dispuesto en un espacio cerrado unido con la superficie exterior del tambor. La estructura de magneto comprende una serie de yugos de magnetos arqueados axialmente extendidos, cada uno comprende un laminado axial para formar sub-ensamblados de un imán arqueado, los cuales son alternadamente polarizados en direcciones axiales opuestas. Cada uno de los sub-ensamblados comprende un imán arqueado axíalmente polarizado e intercalado entre un par arqueado de un flujo magnético suave concentrado el cual tiene espesores axial respectivos entre 5 y 20 por ciento de la mitad del espesor axial de los magnetos intercalados. The patent document US 4693812 corresponds to a magnetic separator of materials that includes an axially inclined drum arranged for axial rotation within the curvature of a structure of an arched magnet which extends axially in the drum and is arranged in a space closed together with the outer surface of the drum. The magnet structure comprises a series of yokes of axially extended arcuate magnets, each comprising an axial laminate to form subassemblies of an arcuate magnet, which are alternately polarized in opposite axial directions. Each of the subassemblies comprises an axially polarized arched magnet intercalated between an arcuate pair of a concentrated smooth magnetic flux which has respective axial thicknesses between 5 and 20 percent of half the axial thickness of the intercalated magnets.
El documento CL 33.035 corresponde a un rodillo para uso en un separador magnético compuesto de capas magnéticas permanentes, las cuales tienen polaridades opuestas en fases opuestas y capas ferromagnéticas entre fases adyacentes de la misma polaridad enfrentándose unas a las otras, de modo que las capas ferromagnéticas alternen en las polaridades de sus bordes expuestos a la superficie del rodillo, donde las capas ferromagnéticas están hechas lo más delgadas posible y que su orillas expuestas cubren un 30% o menos de la superficie del rodillo cubierta por ambas capas, y las capas magnéticas están compuestas de un material magnético permanente apropiado. Document CL 33.035 corresponds to a roller for use in a magnetic separator composed of permanent magnetic layers, which have opposite polarities in opposite phases and ferromagnetic layers between adjacent phases of the same polarity facing each other, so that the ferromagnetic layers alternate in the polarities of their edges exposed to the surface of the roller, where the ferromagnetic layers are made as thin as possible and that their exposed edges cover 30% or less of the surface of the roller covered by both layers, and the magnetic layers are composed of an appropriate permanent magnetic material.
Si bien todos los separadores anteriormente descritos corresponden a separadores de partículas magnéticas desde mezclas que contienen tanto partículas magnéticas como no magnéticas, aún existe la necesidad de disponer de aparatos más efectivos en la separación de las partículas magnéticas y que sean capaces de separar partículas magnéticas, tanto en mezclas con baja concentración de partículas magnéticas como en mezclas con alta concentración de partículas magnéticas. Although all the separators described above correspond to separators of magnetic particles from mixtures containing both magnetic and non-magnetic particles, there is still a need for more effective apparatus for separating magnetic particles and that are capable of separating magnetic particles, both in mixtures with low concentration of magnetic particles and in mixtures with high concentration of magnetic particles.
En base a lo anterior, principalmente no existe en el estado del arte un separador magnético que sea capaz de separar en forma efectiva partículas magnéticas cuando las partículas magnéticas presentan baja concentración en la mezcla. Por tanto, un objetivo de la presente invención es disponer de un tambor magnético que permita separar partículas ferrosas y que sea adecuado para separar partículas ferrosas que se encuentran en baja concentración. Específicamente, se desea disponer de un tambor magnético que permita separar hierro desde arenas férricas, incluyendo aquellas arenas que tienen bajo porcentaje de hierro. Based on the foregoing, there is mainly no magnetic separator in the state of the art that is capable of effectively separating magnetic particles when the magnetic particles have low concentration in the mixture. Therefore, an objective of the present invention is to have a magnetic drum that allows to separate ferrous particles and that is suitable for separating ferrous particles that are in low concentration. Specifically, it is desired to have a magnetic drum that allows iron to be separated from iron sands, including those sands that have a low percentage of iron.
Otro objetivo de la presente invención es disponer de un procedimiento de fabricación de un tambor magnético. Another objective of the present invention is to have a method of manufacturing a magnetic drum.
Más aún otro objetivo, de la presente invención es disponer de un procedimiento para separar partículas de hierro de mezclas sólidas, específicamente de arenas férricas. Moreover, another objective of the present invention is to have a method for separating iron particles from solid mixtures, specifically from iron sands.
Resumen de la Invención Summary of the Invention
La presente invención corresponde a un tambor magnético para separación magnética de hierro, que comprende un cuerpo exterior o manto y una parte interior o núcleo, además tiene un eje central el cual tiene varios discos de igual diámetro, encajados cada cierta distancia, a lo largo de todo el eje central. En forma paralela al eje central se ubican platinas con imanes del largo del cilindro, las cuales van unidas a los contornos perimetrales de los discos. Las platinas con imanes o barras magnéticas se distribuyen uniformemente respecto al perímetro de los discos, y entre barra y barra debe quedar un espacio libre.  The present invention corresponds to a magnetic drum for magnetic separation of iron, which comprises an outer body or mantle and an inner part or core, also has a central axis which has several discs of equal diameter, fitted every certain distance, along of the entire central axis. Parallels with magnets along the length of the cylinder are located parallel to the central axis, which are attached to the perimeter contours of the discs. The plates with magnets or magnetic bars are distributed uniformly with respect to the perimeter of the discs, and between bar and bar there should be a free space.
Breve Descripción de los Dibujos Brief Description of the Drawings
La invención será descrita a continuación con referencia a los dibujos anexos, en los cuales: Las figuras 1 y 8 muestran una vista del cuerpo exterior o manto del tambor magnético de la presente invención. The invention will be described below with reference to the accompanying drawings, in which: Figures 1 and 8 show a view of the outer body or mantle of the magnetic drum of the present invention.
Las figuras 2 y 3 muestran vistas del núcleo del tambor magnético de la presente invención, con y sin barras magnéticas. Figures 2 and 3 show views of the core of the magnetic drum of the present invention, with and without magnetic bars.
La figura 4 es una vista de tambores magnéticos terminados de la presente invención. Figure 4 is a view of finished magnetic drums of the present invention.
Las figuras 5 y 6 muestran vistas del tambor magnético instalado en su caja metálica. Figures 5 and 6 show views of the magnetic drum installed in its metal case.
La figura 7 es otra vista del tambor magnético instalado en su caja metálica. La figura 9 muestra una vista en planta del núcleo del tambor magnético. La figura 10 es otra vista del tambor magnético instalado en su caja metálica. Figure 7 is another view of the magnetic drum installed in its metal case. Figure 9 shows a plan view of the magnetic drum core. Figure 10 is another view of the magnetic drum installed in its metal case.
Descripción Detallada de la Invención Detailed description of the invention
La presente invención se refiere a un tambor magnético (1) para separación magnética de hierro, que comprende un cuerpo exterior o manto (2) cilindrico con tapas laterales (3) en cada uno de sus extremos; y una parte interior o núcleo (7) formada por aproximadamente al menos ocho discos (4) con sus respectivos refuerzos de discos (10); un eje central (6) a lo largo de todo el núcleo; un tubo (9) que cubre la parte central del eje; y al menos 18 a 20 platinas (5) ubicadas en la superficie exterior del núcleo en el sentido longitudinal del núcleo. The present invention relates to a magnetic drum (1) for magnetic separation of iron, comprising an outer body or cylindrical mantle (2) with side covers (3) at each of its ends; and an inner part or core (7) formed by at least eight discs (4) with their respective disc reinforcements (10); a central axis (6) along the entire core; a tube (9) covering the central part of the axis; and at least 18 to 20 plates (5) located on the outer surface of the core in the longitudinal direction of the core.
La presente invención además, se refiere a un sistema para separación magnética de hierro que comprende el tambor magnético (1); cajas con sus rodamientos de soporte y rotación para sostener el tambor; una caja metálica (8) que sirve de soporte y protección del tambor; dos moto reductores con sus respectivos ejes, cadenas de transmisión y poleas dentadas; dos cintas transportadoras instaladas debajo de la caja metálica; dos cajas metálicas de descarga para recibir el mineral que arroja el tambor magnético (rechazo y/o concentrado); un tablero eléctrico; un buzón de alimentación que se instala en la parte superior del tambor magnético; y un regulador de flujo. The present invention furthermore relates to a system for magnetic separation of iron comprising the magnetic drum (1); boxes with their support and rotation bearings to hold the drum; a metal box (8) that serves as support and protection of the drum; two motorcycle reducers with their respective axles, drive chains and pulleys toothed; two conveyor belts installed under the metal box; two metal discharge boxes to receive the ore that the magnetic drum throws (rejection and / or concentrate); an electrical panel; a feeding mailbox that is installed on top of the magnetic drum; and a flow regulator.
La presente invención además, describe el procedimiento de armado del sistema para separación magnética de partículas de hierro. The present invention further describes the method of assembling the system for magnetic separation of iron particles.
La presente invención adicionalmente se refiere al procedimiento de separación magnética para separación de partículas de hierro desde arenas férricas. The present invention further relates to the magnetic separation process for separating iron particles from ferrous sands.
Tambor magnético Magnetic drum
El tambor magnético (1) comprende un cuerpo exterior o manto (2) de acero inoxidable, con forma cilindrica hueca, de paredes lisas, con reborde plano en cada uno de sus extremos. El largo del manto es de aproximadamente 3.000 mm y su diámetro de aproximadamente 920 mm. Cada uno de los rebordes planos tiene perforaciones a lo largo de todo su diámetro las que servirán para fijar las tapas laterales (3) en cada uno de sus extremos. Las tapas son de acero inoxidable y tienen aproximadamente 940 mm de diámetro total, su perímetro se forma por un reborde plano con perforaciones idénticas a las del manto. La fijación entre el manto y las tapas se realiza con pernos y tuercas de acero inoxidable. The magnetic drum (1) comprises an outer body or mantle (2) of stainless steel, with a hollow cylindrical shape, with smooth walls, with a flat flange at each of its ends. The length of the mantle is approximately 3,000 mm and its diameter of approximately 920 mm. Each of the flat flanges has perforations along its entire diameter which will serve to fix the side covers (3) at each of its ends. The covers are made of stainless steel and have approximately 940 mm in total diameter, its perimeter is formed by a flat flange with identical perforations to those of the mantle. The fixing between the mantle and the covers is made with stainless steel bolts and nuts.
En la parte interior el tambor magnético tiene un núcleo (7) fabricado en fierro estructural normal, el cual se forma por aproximadamente al menos ocho discos (4) en plancha de aproximadamente 2 mm de espesor y aproximadamente 890 mm de diámetro, que se encuentran distribuidos uniformemente, que poseen sus respectivos refuerzos de discos (10), y unidos a un eje central (6) fabricado en acero cromo-níquel de aproximadamente 3.400 mm de largo y aproximadamente 120 mm de diámetro, donde el eje tiene un tubo (9) que cubre la parte central de su cuerpo; y por lo menos 18 a 20 platinas (5) rectas magnéticas de aproximadamente 3.000 mm de largo que se ubican en forma radial en la superficie exterior del núcleo con una separación de aproximadamente 100 a 140 mm entre una platina y la otra y que se encuentran soportadas sobre los discos. La función del tubo (9) consiste en hacer girar los discos interiores y los imanes que van pegados a las platinas, las que a su vez van unidas a los discos. Un lado del eje hace de guía a los discos interiores y el otro lado del eje va a un sistema mecánico que se acopla al disco lateral del manto, el cual hace girar independientemente al núcleo. El sistema mecánico lo conforman dos soportes laterales incorporando dos rapamientos que hacen girar el núcleo y manto independientemente. In the inner part the magnetic drum has a core (7) made of normal structural iron, which is formed by at least eight discs (4) in plate approximately 2 mm thick and approximately 890 mm in diameter, which are located evenly distributed, which have their respective disk reinforcements (10), and attached to a central shaft (6) made of chrome-nickel steel approximately 3,400 mm long and approximately 120 mm in diameter, where the axis has a tube (9 ) that covers the central part of your body; and at least 18 to 20 straight magnetic plates (5) approximately 3,000 mm long that are located radially on the outer surface of the core with a separation of approximately 100 to 140 mm between one plate and the other and that are supported on the disks. The function of the tube (9) is to rotate the inner discs and the magnets that are attached to the plates, which in turn are attached to the discs. One side of the shaft guides the inner disks and the other side of the shaft goes to a mechanical system that attaches to the side disk of the mantle, which rotates the core independently. The mechanical system is made up of two lateral supports incorporating two scrapes that rotate the core and mantle independently.
Sistema de separación magnética Magnetic separation system
El sistema de separación magnética comprende el tambor magnético (1); dos cajas con sus rodamientos de soporte y rotación que se colocan uno en cada extremo del tambor, una vez que éste ha sido armado; una caja metálica (8) de aproximadamente 3.200 mm de largo y aproximadamente 1.620 mm de ancho, que sirve de protección y soporte, ya que es adecuada para ser instalada en una estructura de soporte; dos moto reductores con sus respectivos ejes y poleas dentadas; dos cintas transportadoras; dos cajas metálicas de descarga para la descarga del mineral que arroja el tambor magnético (rechazo y/o concentrado de hierro); un tablero eléctrico con sus variadores de frecuencia; un buzón de alimentación que se instala en la parte superior del tambor magnético que tiene forma de embudo y cuya función es recepcionar el mineral a concentrar para luego ser distribuido en la superficie del tambor magnético, específicamente el buzón va montado sobre la caja metálica (8) y en la parte inferior tiene una abertura de extremo a extremo del embudo, lo que permite docificar la alimentación hacia el tambor magnético; y un regulador de flujo. El eje central y las cajas con sus rodamientos de soporte y rotación permiten que el tambor gire haciendo girar el manto en forma contraria al núcleo. La caja con sus rodamientos corresponde al descanso de los ejes del núcleo. El tambor magnético tiene una dirección de giro y el núcleo magnético tiene un giro contrario al tambor, este giro del núcleo tiene una velocidad de 30 a 90 r.p.m aproximadamente, logrando que los campos magnéticos se reduzcan y de esta manera, poder ejercer un campo magnético uniforme. La caja metálica (8) sirve para protección, sujeción y guía del tambor magnético, ambos extremos del eje se apisonan en una caja de rodamiento que se identifican como descansos del eje. The magnetic separation system comprises the magnetic drum (1); two boxes with their bearings of support and rotation that are placed one in each end of the drum, once this has been armed; a metal box (8) approximately 3,200 mm long and approximately 1,620 mm wide, which serves as protection and support, since it is suitable for installation in a support structure; two motorcycle reducers with their respective shafts and toothed pulleys; two conveyor belts; two metal discharge boxes for the discharge of the ore thrown by the magnetic drum (rejection and / or iron concentrate); an electrical board with its frequency inverters; a feeding mailbox that is installed in the upper part of the magnetic drum that has a funnel shape and whose function is to receive the mineral to be concentrated and then be distributed on the surface of the magnetic drum, specifically the mailbox is mounted on the metal box (8 ) and in the lower part it has an end-to-end funnel opening, which allows the feed to the magnetic drum to be documented; and a flow regulator. The central shaft and the boxes with their support and rotation bearings allow the drum to rotate by rotating the mantle counterclockwise. The box with its bearings corresponds to the rest of the core shafts. The magnetic drum has a direction of rotation and the magnetic core has an opposite rotation to the drum, this rotation of the core has a speed of approximately 30 to 90 rpm, achieving that the magnetic fields are reduced and in this way, to be able to exert a magnetic field uniform. The metal box (8) serves to protect, hold and guide the magnetic drum, both ends of the shaft are taped in a bearing housing that are identified as shaft rests.
Procedimiento de armado del sistema System arming procedure
El procedimiento de armado del sistema, comprende las siguientes etapas: - proceder a la instalación del tambor magnético dentro de la caja metálica para contener el tambor, una vez construido el tambor magnético, ubicando el tambor al centro de dicha caja y con la precaución de dejar un espacio de aproximadamente 500 mm para el desalojo del material estéril y un espacio de aproximadamente 200 mm para el concentrado de hierro; - instalar, en los dos extremos laterales del eje un sistema mecánico con polea dentada a base de dos moto reductores con sus respectivos ejes y poleas dentadas las que ejercen el movimiento motriz a través de cadena, donde el diámetro de las poleas dentadas y la potencia de los moto reductores dependerá del tipo de material a concentrar, por ejemplo arenas o particulado de magnetita; The system assembly procedure includes the following steps: - proceed to the installation of the magnetic drum inside the metal box to contain the drum, once the magnetic drum has been built, placing the drum in the center of said box and with the precaution of leave a space of approximately 500 mm for the evacuation of the sterile material and a space of approximately 200 mm for the iron concentrate; - install, on the two lateral ends of the axle, a mechanical system with a toothed pulley based on two reduction gears with their respective shafts and toothed pulleys which exert the motor movement through the chain, where the diameter of the toothed pulleys and the power of the reducing motorcycles will depend on the type of material to be concentrated, for example sands or magnetite particulate;
- conectar a un tablero eléctrico los moto reductores para tener la partida y detención del funcionamiento del tambor;  - connect the motor reducers to an electrical board to have the starting and stopping of the drum operation;
- instalar en la parte superior del tambor magnético un buzón de alimentación para la recepción del material a tratar en el tambor, cuya función es recepcionar el mineral a concentrar y luego distribuirlo en la superficie del tambor magnético y en la parte inferior las cajas metálicas de descarga; e  - install in the upper part of the magnetic drum a feeding mailbox for the reception of the material to be treated in the drum, whose function is to receive the mineral to concentrate and then distribute it on the surface of the magnetic drum and in the lower part the metal boxes of discharge; and
- instalar un regulador de flujo, en la parte inferior del buzón de alimentación, el cual dosifica la alimentación en la superficie externa del tambor, para una alimentación aproximada de 200 toneladas hora.  - install a flow regulator, in the lower part of the feeding mailbox, which measures the feed on the external surface of the drum, for an approximate feeding of 200 tons per hour.
Procedimiento de separación magnética Magnetic separation procedure
El procedimiento de separación magnética comprende tratar materiales tales como arenas ferrosas y particulado de magnetita no mayor a 12 mm, siendo los rangos de flujos a tratar de aproximadamente 200 toneladas por hora.  The magnetic separation process comprises treating materials such as ferrous sands and magnetite particles no larger than 12 mm, the flow ranges to be treated at approximately 200 tons per hour.
El procedimiento de separación magnética para separación de partículas de hierro comprende:  The method of magnetic separation for separation of iron particles comprises:
- disponer de al menos un sistema de separación magnética que comprenda un tambor magnético;  - have at least one magnetic separation system comprising a magnetic drum;
- alimentar el material a separar a través del buzón de alimentación;  - feed the material to be separated through the feeding mailbox;
- colocar en funcionamiento el sistema por medio de su tablero eléctrico, tal que cada moto reductor da un movimiento inverso al manto y otro al núcleo y al ser alimentado el tambor por el regulador de flujo, las películas de concentrado de hierro siguen la dirección de giro que tiene el núcleo magnético y son recepcionadas por la caja metálica de descarga, el cual las traslada hacia la cinta transportadora para su acopio, y las partículas (rechazadas) siguen la dirección de giro del manto y son recepcionadas por la otra caja metálica de descarga, la cual las traslada hacia la cinta transportadora de rechazo o partículas no magnéticas. La caja metálica (8) tiene un ángulo (11) donde descansa la caja como estructura soporte y permite soportar y alimentar al tambor magnético, permite que el material magnético en su proceso de concentración y/o rechazo no se pierda fuera de la caja, es decir cumple la función de retención del material o mineral en proceso y permite orientar el mineral a descargar en cada cinta transportadora guiando el material rechazado y/o concentrado a sus respectivas cajas de descargas. - put the system into operation by means of its electrical panel, such that each reducing motor gives an inverse movement to the mantle and another to the core and when fed the drum by the flow regulator, the iron concentrate films follow the direction of rotation of the magnetic core and are received by the metal discharge box, which moves them to the conveyor belt for collection, and particles ( rejected) follow the direction of rotation of the mantle and are received by the other metal discharge box, which moves them to the rejection conveyor belt or non-magnetic particles. The metal box (8) has an angle (11) where the box rests as a support structure and allows to support and feed the magnetic drum, allows the magnetic material in its concentration and / or rejection process not to be lost outside the box, that is to say, it fulfills the function of retention of the material or mineral in process and allows to guide the ore to be unloaded on each conveyor belt guiding the rejected and / or concentrated material to their respective discharge boxes.
El tambor magnético se utiliza para separar hierro desde arenas férricas y puede separar hierro en arenas de bajo porcentaje, como por ejemplo al 2%. El tambor está regulado para operar con imanes de .500 Gauss aproximadamente. The magnetic drum is used to separate iron from iron sands and can separate iron into sands of low percentage, such as 2%. The drum is regulated to operate with magnets of approximately .500 Gauss.
El procedimiento de separación magnética permite obtener concentraciones mayores al 65% de ley, con una sola pasada de tratamiento. The magnetic separation procedure allows to obtain concentrations greater than 65% of law, with a single treatment pass.

Claims

REIVINDICACIONES
1. Tambor magnético para separación magnética de partículas de hierro desde arenas férricas, CARACTERIZADO porque comprende un cuerpo exterior o manto (2) cilindrico hueco; dos tapas laterales (3), una para cada extremo del manto; y un cuerpo interior o núcleo (7) el cual comprende discos (4) en plancha, que se encuentran distribuidos uniformemente y unidos a un eje central (6), y por lo menos 18 platinas (5) rectas magnéticas que se ubican en forma radial en la superficie exterior del núcleo y que se encuentran soportadas sobre los discos. 1. Magnetic drum for magnetic separation of iron particles from iron sands, CHARACTERIZED because it comprises an outer body or hollow cylindrical mantle (2); two side covers (3), one for each end of the mantle; and an inner body or core (7) which comprises plates (4) in iron, which are uniformly distributed and attached to a central axis (6), and at least 18 straight magnetic plates (5) that are located in shape radial on the outer surface of the core and that are supported on the discs.
2. Tambor magnético para separación magnética de partículas de hierro, de acuerdo a la reivindicación 1 , CARACTERIZADO porque el manto es de acero inoxidable y su largo es de aproximadamente 3.000 mm y su diámetro de aproximadamente 920 mm. 2. Magnetic drum for magnetic separation of iron particles, according to claim 1, CHARACTERIZED because the mantle is made of stainless steel and its length is approximately 3,000 mm and its diameter approximately 920 mm.
3. Tambor magnético para separación magnética de partículas de hierro, de acuerdo a cualquiera de las reivindicaciones 1 a 2, CARACTERIZADO porque el núcleo comprende aproximadamente al menos 8 discos que tienen sus respectivos refuerzos de disco (10) y porque el eje central adicionalmente tiene un tubo (9) que cubre la parte central de dicho eje. 3. Magnetic drum for magnetic separation of iron particles, according to any of claims 1 to 2, CHARACTERIZED because the core comprises approximately at least 8 discs having their respective disk reinforcements (10) and because the central axis additionally has a tube (9) covering the central part of said shaft.
4. Tambor magnético para separación magnética de partículas de hierro, de acuerdo a cualquiera de las reivindicaciones 1 a 3, CARACTERIZADO porque las platinas magnéticas del núcleo son al menos 18 a 20 platinas magnéticas y porque las platinas magnéticas son platinas metálicas que tienen imanes pegados en una de sus superficies. 4. Magnetic drum for magnetic separation of iron particles, according to any of claims 1 to 3, CHARACTERIZED because the magnetic plates of the core are at least 18 to 20 magnetic plates and because the magnetic plates are metal plates that have attached magnets on one of its surfaces.
. Tambor magnético para separación magnética de partículas de hierro, de acuerdo a la reivindicación 4, CARACTERIZADO porque las platinas magnéticas tienen una separación de aproximadamente 100 a 140 mm entre una platina y la otra. . Magnetic drum for magnetic separation of iron particles, according to claim 4, CHARACTERIZED because the magnetic plates have a separation of approximately 100 to 140 mm between one plate and the other.
6. Tambor magnético para separación magnética de partículas de hierro, de acuerdo a cualquiera de las reivindicaciones 1 a 5, CARACTERIZADO porque el núcleo es de fierro estructural normal, los discos tienen aproximadamente 2 mm de espesor y aproximadamente 890 mm de diámetro, el eje central es de acero cromo-níquel y tiene aproximadamente 3.400 mm de largo y aproximadamente 120 mm de diámetro, y las platinas magnéticas tienen aproximadamente 3.000 mm de largo. 6. Magnetic drum for magnetic separation of iron particles, according to any of claims 1 to 5, CHARACTERIZED because the core is of normal structural iron, the discs are approximately 2 mm thick and approximately 890 mm in diameter, the axis The center is made of chrome-nickel steel and is approximately 3,400 mm long and approximately 120 mm in diameter, and the magnetic plates are approximately 3,000 mm long.
7.- Sistema de separación magnética para separación magnética de partículas de hierro desde arenas férricas, CARACTERIZADO porque comprende un tambor magnético como el descrito en cualquiera de las reivindicaciones 1 a 6, dos cajas con sus rodamientos de soporte y rotación que se colocan uno en cada extremo del tambor, una caja metálica (8) para contener el tambor, dos moto reductores con sus respectivos ejes y poleas dentadas, dos cajas metálicas de descarga; un tablero eléctrico con sus variadores de frecuencia, un buzón de alimentación y un regulador de flujo. 7. Magnetic separation system for magnetic separation of iron particles from iron sands, CHARACTERIZED because it comprises a magnetic drum as described in any of claims 1 to 6, two boxes with their support and rotation bearings that are placed one in each end of the drum, a metal box (8) to contain the drum, two reduction gears with their respective shafts and toothed pulleys, two metal discharge boxes; an electrical panel with its frequency inverters, a power mailbox and a flow regulator.
8.- Sistema de separación magnética para separación magnética de partículas de hierro, de acuerdo con la reivindicación 7, CARACTERIZADO porque la caja metálica para contener el tambor mide aproximadamente 3.200 mm de largo y aproximadamente 1.620 mm de ancho. 8. Magnetic separation system for magnetic separation of iron particles, according to claim 7, CHARACTERIZED because the metal box for containing the drum is approximately 3,200 mm long and approximately 1,620 mm wide.
9.- Sistema de separación magnética para separación magnética de partículas de hierro, de acuerdo con cualquiera de las reivindicaciones 7 u 8, CARACTERIZADO porque además se instala un buzón sobre la caja metálica (8) con forma de embudo el cual tiene en la parte inferior una abertura de extremo a extremo del embudo, lo que permite dosificar la alimentación hacia el tambor magnético. 9. Magnetic separation system for magnetic separation of iron particles, according to any of claims 7 or 8, CHARACTERIZED because a mailbox is also installed on the funnel-shaped metal box (8) which has at the bottom an end-to-end opening of the funnel, which allows dosing the feed to the magnetic drum.
10.- Procedimiento de armado del sistema de separación magnética para separación magnética de partículas de hierro desde arenas férricas, CARACTERIZADO porque comprende: 10.- Assembly procedure of the magnetic separation system for magnetic separation of iron particles from iron sands, CHARACTERIZED because it comprises:
- proceder a la instalación de un tambor magnético, como el descrito en cualquiera de las reivindicaciones 1 a 6, dentro de la caja metálica que tiene que contener al tambor;  - proceed to the installation of a magnetic drum, as described in any one of claims 1 to 6, inside the metal box that must contain the drum;
- instalar, en los dos extremos laterales del eje un sistema mecánico con poleas dentadas, a base de dos moto reductores con sus respectivos ejes y un poleas dentadas que ejercen el movimiento motriz a través de cadena, donde el diámetro de las poleas dentadas y la potencia de los moto reductores dependerá del tipo de material a concentrar, por ejemplo arenas o particulado de magnetita;  - install, on the two lateral ends of the shaft, a mechanical system with toothed pulleys, based on two reduction gears with their respective axes and a toothed pulleys that exert the motive movement through the chain, where the diameter of the toothed pulleys motor reducer power will depend on the type of material to be concentrated, for example sands or magnetite particulate;
- conectar a un tablero eléctrico los moto reductores para tener la partida y detención del funcionamiento del tambor;  - connect the motor reducers to an electrical board to have the starting and stopping of the drum operation;
- instalar en la parte superior del tambor magnético un buzón de alimentación para la recepción del material a tratar en el tambor y en la parte inferior dos cajas metálica de descarga; e  - install in the upper part of the magnetic drum a feeding mailbox for the reception of the material to be treated in the drum and in the lower part two metal discharge boxes; and
- instalar un regulador de flujo, en la parte inferior del buzón de alimentación, el cual dosifica la alimentación en la superficie externa del tambor, para una alimentación aproximada de 200 toneladas hora.  - install a flow regulator, in the lower part of the feeding mailbox, which measures the feed on the external surface of the drum, for an approximate feeding of 200 tons per hour.
11.- Procedimiento de armado del sistema de separación magnética para separación magnética de partículas de hierro, de acuerdo con la reivindicación 10, CARACTERIZADO porque el tambor magnético se ubica al centro de la caja metálica con la precaución de dejar un espacio de aproximadamente 500 mm para el desalojo del material estéril y un espacio de aproximadamente 200 mm para el concentrado de hierro. 11.- Method of assembling the magnetic separation system for magnetic separation of iron particles, according to claim 10, CHARACTERIZED because the magnetic drum is located at the center of the metal box with the precaution of leaving a space of approximately 500 mm for the evacuation of the sterile material and a space of approximately 200 mm for the iron concentrate.
12.- Procedimiento de separación magnética para separación de partículas de hierro desde arenas férricas, CARACTERIZADO porque comprende: 12.- Magnetic separation procedure for the separation of iron particles from iron sands, CHARACTERIZED because it comprises:
- disponer de al menos un sistema como el descrito en las reivindicaciones 7 a - having at least one system as described in claims 7 to
9; 9;
- alimentar el material a separar a través del buzón de alimentación;  - feed the material to be separated through the feeding mailbox;
- colocar en funcionamiento el sistema por medio de su tablero eléctrico, tal que cada moto reductor da un movimiento inverso al manto y otro al núcleo y al ser alimentado el tambor por el regulador de flujo, las partículas de hierro siguen la dirección de giro que tiene el núcleo magnético y son recepcionadas por una de las cajas metálicas de descarga, la cual las traslada hacia una cinta transportadora para su acopio, y las partículas no magnéticas siguen la dirección de giro del manto y son recepcionadas por la otra caja metálica de descarga, la cual las traslada hacia otra cinta transportadora de rechazo o partículas no magnéticas.  - put the system into operation by means of its electrical panel, such that each reducing motor gives a reverse movement to the mantle and another to the core and when the drum is fed by the flow regulator, the iron particles follow the direction of rotation that It has the magnetic core and is received by one of the metal discharge boxes, which moves them to a conveyor belt for collection, and the non-magnetic particles follow the direction of rotation of the mantle and are received by the other metal discharge box , which moves them to another rejection conveyor belt or non-magnetic particles.
13.- Procedimiento de separación magnética para separación magnética de partículas de hierro de acuerdo con la reivindicación 12, CARACTERIZADO porque la caja metálica (8) permite soportar y alimentar al tambor magnético, permite que el material magnético en su proceso de concentración y/o rechazo no se pierda fuera de la caja y permite orientar el mineral a descargar en cada cinta transportadora guiando el material rechazado y/o concentrado a sus respectivas cajas de descargas. 13. Magnetic separation process for magnetic separation of iron particles according to claim 12, CHARACTERIZED because the metal box (8) allows to support and feed the magnetic drum, allows the magnetic material in its concentration process and / or rejection is not lost outside the box and allows the ore to be oriented to be unloaded on each conveyor belt, guiding the rejected and / or concentrated material to their respective discharge boxes.
PCT/CL2011/000084 2011-11-01 2011-12-29 Magnetic drum for the magnetic separation of iron particles, including at least 18 straight magnetic plates WO2013063712A1 (en)

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US14/355,719 US20140299518A1 (en) 2011-11-01 2011-12-29 Magnetic drum for the magnetic separation of iron particles including at least 18 straight magnetic plates
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