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EP2864050B1 - Dispositif et procédé pour séparer des impuretés magnétisables de fluides en écoulement - Google Patents

Dispositif et procédé pour séparer des impuretés magnétisables de fluides en écoulement Download PDF

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Publication number
EP2864050B1
EP2864050B1 EP12742812.6A EP12742812A EP2864050B1 EP 2864050 B1 EP2864050 B1 EP 2864050B1 EP 12742812 A EP12742812 A EP 12742812A EP 2864050 B1 EP2864050 B1 EP 2864050B1
Authority
EP
European Patent Office
Prior art keywords
fluid
outlet
chamber
particle outlet
valve
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
EP12742812.6A
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German (de)
English (en)
Other versions
EP2864050A1 (fr
Inventor
Stefan Wilkes
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.)
Norbert Ruez & Co KG GmbH
Original Assignee
Norbert Ruez & Co KG GmbH
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 of EP2864050A1 publication Critical patent/EP2864050A1/fr
Application granted granted Critical
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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
    • B03C1/28—Magnetic plugs and dipsticks
    • B03C1/284—Magnetic plugs and dipsticks with associated cleaning means, e.g. retractable non-magnetic sleeve
    • 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
    • B03C1/28—Magnetic plugs and dipsticks
    • B03C1/286—Magnetic plugs and dipsticks disposed at the inner circumference of a recipient, e.g. magnetic drain bolt
    • 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
    • B03C1/28—Magnetic plugs and dipsticks
    • B03C1/288—Magnetic plugs and dipsticks disposed at the outer circumference of a recipient
    • 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
    • B03C2201/18—Magnetic separation whereby the particles are suspended in a liquid

Definitions

  • the present invention relates to an apparatus and method for separating magnetizable contaminants from flowing fluids (liquids and gases).
  • Magnetic filters are used to remove magnetizable particles from fluids produced, for example, during manufacture (e.g., metal shavings during drilling and turning).
  • the aim is to achieve the highest possible filter efficiency, in particular the removal of very small particles, in order to reduce the wear on machines and tools through which the fluids flow or come in contact with them.
  • the filter efficiency gradually decreases and at worst, the filter clogs.
  • the magnetic filter must therefore be cleaned at the shortest possible interruption period of the filtration operation at intervals.
  • the polarity of the magnets is ineffective, since the largest magnetic forces are always present at the poles of the magnet, see below.
  • the liquid flows through a rotating hollow shaft 6 and through its holes in the tube, wherein the tangential exit from the hollow axis supports the cleaning action, and in this case, the impurities are removed by rotating the screw up and transported to the poles, where the Magnetic forces are greatest. Due to the design, the magnetizable particles can only be pushed away by pushed-on impurities. Depending on the property of the magnetizable particles, there is a blockage between the cover plate and the magnet.
  • One from the DE 1 794 280 B known magnetic filter device comprises a cylindrical housing 1 with an inlet opening 2 and an outlet opening 3.
  • a rotatable magnetic filter column with magnets 5, 6 rotatably mounted on a non-magnetic shaft 7.
  • a cylindrical, non-magnetic jacket shell 9 Between the inlet 2 and the magnetic filter column is a cylindrical, non-magnetic jacket shell 9, which in the embodiment of FIG. 4 has screw flights 16.
  • a catch or squeegee strip 14 which strips off the impurities deposited on this rotation of the magnetic column. The cleaning of the magnetic filter from the adhered magnetic impurities may be performed during normal filter operation. It can also be provided a periodically operating rotary drive.
  • a magnetic filter that works with container and without pressure.
  • a nonmagnetic stationary cylinder housing 12 has an upper inlet 22 and a lower outlet 24.
  • a worm 32 of nonmagnetic material is rotatable with respect to the cylinder housing.
  • the worm forms a helical ramp with the cylinder housing and rotates during operation of the device.
  • the worm collects the magnetic material and guides it upwards or downwards, depending on the direction of rotation of the worm.
  • liquid to be purified flows in at 50 and exits at 24 in a purified state. Below the outlet 24, the magnetic particles are collected in a sort of pocket. The particles are transported to the outlet 43 '.
  • EP 0 083 331 A1 is another continuous, describe with container and non-pressurized magnetic filter.
  • a cylinder 10 made of non-magnetic material has magnet plates 12 spaced on the outside and inside a worm 14 of non-magnetic material, which is in contact with the inner wall of the cylinder 10 and the magnetic material adhering to the cylinder wall wipes there and outwardly, ie, above , transported.
  • the operation is described on page 4 below (lines 23 to 33).
  • lines 19 et seq. The suspension in the case of embodiment I ( Fig.
  • the rotational speed of the centrifuge connected to the screw conveyor 14 is 500 to 2,500 rpm.
  • a tube 40 with a conveying screw 41 rotating therein and external magnets 47 are shown inside the tube 42. Inside the tube 42 there is a magnetic core 46, through the force of which the magnetic particles are predominantly transported to the second outlet 45, while the non-magnetic particles are discharged through the first outlet 44.
  • a magnetic separator for removing magnetizable metal parts from a paper fiber suspension comprises a cylindrically shaped magnet 1 which is driven by a drive shaft 6. A part is surrounded by a coaxial tube 7 in which a spiral screw enclosing the magnet is located as a conveying element 2. Instead of the constellation rotating magnet and stationary conveying element and the magnet can be stationary and the conveying element rotates. The relative movement generates an axial conveying movement, as a result of which the particles held in place by means of the magnet are conveyed out. The delivery may be continuous or at intervals. Coarser ferromagnetic particles are deposited in this magnetic separator.
  • the filtrate does not flow through the screw flights and the separation process takes place only outside the tube 7 but not inside it.
  • the ferromagnetic particles are transported together with a proportion of paper fibers to the discharge or the lock 4 and the magnet has only promotional function here.
  • the fiber content can be backwashed through the purge port 13.
  • the invention has for its object to provide a device for separating magnetizable impurities from flowing fluids (liquids and gases) is available that works energy efficient, can process large amounts of impurities and is to be cleaned with minimal interruption of the fluid flow, and a corresponding Method.
  • the invention thus relates to a device for separating magnetizable impurities from flowing fluids (liquids or gases) whose flow is effected by negative pressure or overpressure.
  • the apparatus includes a cylindrical chamber having a fluid inlet for the magnetizable particle-containing fluid, a clean fluid outlet for the purified fluid, and a particle outlet for the magnetizable particles.
  • an inner cylinder body is arranged, which forms an annular gap through which the fluid flows through the chamber wall.
  • Inlet valve and the particle outlet a drain valve is provided in front of or at the fluid inlet.
  • a drain valve is provided in front of or at the fluid inlet. Outside the annular gap at least one magnet is arranged in the flow direction between the fluid inlet and the clean fluid outlet.
  • a rotatable, helical scraper which transports deposited on the wall of the chamber and / or the inner tube magnetizable particles to the particle outlet.
  • a drive for the helical scraper is provided, wherein the drive is designed to drive the scraper in normal operation, in which the annular gap is traversed by the fluid to be cleaned, and to drive during a period of filter cleaning.
  • the device according to the invention for separating magnetizable impurities, in particular ferromagnetic particles, from fluids is distinguished by a very simple construction. It filters the magnetizable particles from flowing liquids or gases, whereby the flow is effected by negative pressure or upper pressure.
  • the liquids may be e.g. to emulsions, cutting oils and the like and act in the particles to ferromagnetic particles of iron or steel. However, other liquids may also be purified and the particles may also be paramagnetic.
  • the device according to the invention is also suitable for cleaning gases of magnetizable particles and, for example, metallurgical dust can be removed from the air. It is possible to deposit particles with dimensions of less than 10 ⁇ m.
  • the magnetic filter according to the invention is thus characterized by the property of being self-cleaning. Its operation is as follows: The annular gap is flowed through during normal operation of the liquid to be cleaned (or gas). In the annular gap is the helical guide means for the liquid, whereby the liquid is subjected to a centrifugal force and strives towards the outer wall.
  • the helical guide means is rotatable for cleaning and scrapes adhered solid particles (sludge) from the outer wall during the period of cleaning.
  • the helical guide means is not driven.
  • the cleaning process is depressurised, which means that no pressure has to be built up separately. Rather, it is optionally backwashed or used the existing pressure, which will be described later.
  • the magnets can be permanent magnets or electromagnets.
  • the magnet (s) are (are) mounted externally on the cylindrical chamber.
  • the effective area for collecting the magnetizable particles is larger.
  • the magnets can be replaced during operation or others can be attached.
  • the helical scraper can then be attached to the inner cylinder body, e.g. be welded to it, in which case the inner cylinder body is made rotatable.
  • magnets can be provided within the annular gap, for example, in order to increase the forces acting on the magnetizable particles and thus the filter efficiency.
  • the helical scraper is always designed to be rotatable independently of the chamber wall and the inner cylinder body in this case and thus has a separate drive.
  • the fluid Due to the helical scraper in the annular gap, the fluid is guided spirally through the annular gap.
  • the centrifugal forces acting on the magnetizable particles during the passage of the screw helix assist the movement of the particles outwards to the chamber wall in externally mounted magnets. If the pitch of the helix is chosen flat, the flow resistance increases. At the same time, the magnetizable particles remain longer in the magnetic field and are more efficiently eliminated from the fluid due to the greater residence time.
  • Another parameter with which the filter function can be controlled is the gap width, which also influences the flow velocity.
  • the deposition behavior can be controlled in terms of particle size. If larger particles are to be separated, the flow rate is increased, and vice versa.
  • Other parameters that are included in the cleaning behavior are the flow rate of the inflowing fluid, its viscosity and the strength of the magnets or magnetic fields used.
  • the particle outlet is expediently provided in the region of the chamber in which the fluid inlet is located.
  • the pure fluid is thus removed in the opposite direction to the discharged magnetizable particles. By means of this measure, less dirt particles remain in the filtrate.
  • the magnetizable particles of the particle outlet is funnel-shaped or cylindrical.
  • the magnetizable particles scraped off by the scraper and transported to the particle outlet can be purged or cleaned by means of the overpressure present in the system.
  • the clean fluid outlet is equipped with an automatic valve. When this valve is closed, all the fluid can be forced through the particulate outlet by the existing positive pressure to reliably remove the contaminants from the chamber in critical cases.
  • the inlet valve is closed. Due to the overpressure in the system then the liquid is discharged together with the impurities through the particle outlet.
  • Switching means is then provided for switching from one fluid inlet of one magnetic filter to the fluid inlet of the other magnetic filter (e.g., a three-way valve) and / or opening and closing the associated clean fluid outlets. If the magnetic filter in operation needs to be cleaned, it switches to the other magnetic filter. It comes through the cleaning process neither to a business interruption of the entire system, nor to a drop in fluid pressure.
  • a further alternative of cleaning the device according to the invention in which the discharged particles are separated from the fluid, may be used in the cylindrical particle outlet design. This is provided at the particle outlet or downstream of this with a switch or a corresponding additional device with which the particle outlet is switched to a discharge of fluid and solids.
  • the liquid present in the chamber is the first drained.
  • the drain valve is opened and the inlet valve and the valve at the clean fluid outlet are closed.
  • the helical scraper is driven and removes the adhering to the wall dirt particles.
  • the wet solids virtually the dry substance, exit the chamber through the particle outlet and can be removed via a conduit or collected in a receiver.
  • a switch for example, can be used to discharge the solids into the catch tank and the liquid discharged from the chamber via a separate line. At high sludge concentration (particle content in the fluid) no separation of fluid and solids should be made, but rather both should be removed together to avoid blockages.
  • the clean fluid is discharged into a tank. In this case, then there is no back pressure on the chamber on the clean fluid side.
  • Fig. 1 is a magnetic filter for separating ferromagnetic contaminants from liquids such as emulsions or cutting oils.
  • the magnetic filter is installed in a system in which the liquid is conveyed with overpressure, as prevails, for example, in pumping systems.
  • the magnetic filter comprises a cylindrical chamber 2, which is shown in vertical positioning. An example, horizontal arrangement of the chamber is also possible.
  • the chamber wall is made of non-ferromagnetic material, preferably stainless steel or plastic.
  • the inner cylinder body In the chamber 2 is an inner cylinder body 4, which is coupled via a pivot pin 6 with a motor 8.
  • the inner cylinder body may be solid or hollow inside.
  • a scraper 10 a screw helix, is mounted, which extends almost to the wall of the chamber 2.
  • the inner tube 4 extends over almost the entire length of the chamber 2 and ends at a distance in front of the motor 8 opposite, ie the in Fig. 1 lower end.
  • the inner tube 4 and the wall of the chamber 2 define an annular gap 12.
  • a magnet 14 is arranged, whose magnetic field penetrates the annular gap 12.
  • a dirty liquid inlet 18 containing ferromagnetic particles see arrow 16.
  • the inlet 18 is provided with an inlet valve 20.
  • an outlet 22 for clean liquid see arrow 14.
  • the outlet 22 is provided with an automatic valve or a throttle valve 26.
  • An outlet 28 for the ferromagnetic particles (sludge outlet), see arrow 32, is located at the end of the chamber 2, opposite to the clean liquid outlet 22, in FIG Fig. 1 below the inlet 18, and is funnel-shaped. It is provided with a drain valve (mud discharge valve) 30.
  • the magnetic filter can be retrofitted in existing systems.
  • contaminated liquid containing ferromagnetic particles e.g., metal shavings cutting emulsion
  • inlet 18 contaminated liquid containing ferromagnetic particles (e.g., metal shavings cutting emulsion) through inlet 18 enters chamber 2.
  • the liquid then passes into the annular gap 12 and flows through this guided by the helices of the screw helix 10, see arrows 34.
  • the ferromagnetic particles migrate outward to the wall of the chamber 2 and settle there.
  • the clean liquid exits through the outlet 22 at the end of the chamber 2.
  • the mud discharge valve 30 is closed during normal operation.
  • the throttle valve is present, this is brought into the throttle position, so that less pure liquid from the magnetic filter occurs.
  • the mud discharge valve 30 is opened.
  • the motor 8 is turned on and rotates the inner tube 4 with the helical coil 10. The latter scrapes or scrapes off the particles from the chamber wall. The direction of rotation is chosen so that the particles are transported by the screw helix 10 in the direction of the sludge outlet 28.
  • the inlet valve 20 can be opened and incoming dirty liquid used to flush out the ferromagnetic particles through the mud outlet 28.
  • the cleaning process requires little time, so that the interruption of the operation of the system is short.
  • Fig. 2 shows a second embodiment according to the invention. As far as the parts are the same as those of the first embodiment, they are denoted by the same reference numerals and will not be described again.
  • magnetic filter 4 magnets 36 are arranged in the inner tube.
  • the worm gear 10 is not attached to the inner tube 4, but is directly driven by the motor 8. It carries particles deposited during filter cleaning both from the chamber wall and from the inner tube.
  • the sludge outlet 38 is cylindrical, so that the risk of blockages is lower.
  • the mud drain 38 is provided with a drain valve 40.
  • the cylindrical design is independent of the location of the magnet assembly, that is, whether they are located outside or inside. In the case of a horizontal chamber arrangement, a cylindrical particle outlet is preferred.

Landscapes

  • Filtration Of Liquid (AREA)

Claims (15)

  1. Dispositif, notamment filtre magnétique,
    pour la séparation d'impuretés aimantables de fluides en écoulement, comprenant
    une chambre cylindrique (2) avec une arrivée de fluide (18) pour le fluide contenant des particules aimantables, une sortie de fluide purifié (22) pour le fluide nettoyé et une sortie des particules (28, 38) pour les particules aimantables, sachant que dans la chambre (2) est disposé un corps cylindrique intérieur (4), qui forme avec la paroi de chambre un interstice annulaire (12) traversé par le fluide,
    au moins un aimant (14, 36), qui est disposé en dehors de l'interstice annulaire dans la direction de l'écoulement entre l'arrivée de fluide (18) et la sortie de fluide purifié (22), un racleur en spirale rotatif (10), disposé dans l'interstice annulaire (12) pour le transport des particules aimantables déposées sur la paroi de la chambre (2) vers la sortie des particules (28, 38),
    un système d'entraînement (8) pour le racleur en spirale (10),
    caractérisé en ce que
    le passage des fluides s'écoulant est produit par une dépression ou une surpression,
    sachant qu'une soupape d'arrivée (20) se trouve avant ou sur l'arrivée de fluide (18) et une soupape d'évacuation (30, 40) est prévue à la sortie des particules (28, 38), sachant que l'entraînement (8) est constitué à cet effet pour ne pas actionner le racleur (10) en fonctionnement normal dans lequel l'interstice annulaire (12) n'est pas traversé par le fluide à nettoyer et à actionner celui-ci pendant une période de nettoyage du filtre.
  2. Dispositif selon la revendication 1,
    caractérisé en ce que le corps cylindrique intérieur (4) est constitué comme tube intérieur et le racleur en forme de spirale (10) est prévu pour le transport de particules aimantables déposées sur la paroi du tube intérieur vers la sortie de particules (28, 38).
  3. Dispositif selon la revendication 1,
    caractérisé en ce que le racleur en forme de spirale (10) est monté sur le corps cylindrique intérieur (4) et peut tourner conjointement avec celui-ci.
  4. Dispositif selon l'une quelconque des revendications 1 à 3,
    caractérisé en ce qu'au moins un autre aimant (36) est monté dans le corps cylindrique intérieur (4).
  5. Dispositif selon l'une quelconque des revendications 1, 2 ou 4,
    caractérisé en ce que l'entraînement (8) est prévu uniquement pour le racleur en forme de spirale (10).
  6. Dispositif selon l'une quelconque des revendications 1 à 5,
    caractérisé en ce que la sortie des particules (28, 38) est prévue dans la zone de la chambre (2) dans laquelle se trouve l'arrivée de fluide (18).
  7. Dispositif selon l'une quelconque des revendications 1 à 6,
    caractérisé en ce que la sortie des particules (28, 38) est une sortie des particules en forme d'entonnoir (28) ou une sortie des particules de forme cylindrique (38).
  8. Dispositif selon la revendication 7,
    caractérisé en ce qu'un dispositif de séparation réversible est respectivement prévu pour l'évacuation du fluide et des particules à la sortie des particules ou monté en aval de celle-ci.
  9. Dispositif selon l'une quelconque des revendications 1 à 8,
    caractérisé en ce que la sortie de fluide purifié (22) est dotée d'une soupape automatique (26).
  10. Dispositif selon l'une quelconque des revendications 1 à 8,
    caractérisé en ce que la sortie de fluide purifié (22) est dotée d'un restricteur (26).
  11. Dispositif selon l'une quelconque des revendications 1 à 10,
    caractérisé en ce qu'un autre dispositif selon l'une quelconque des revendications 1 à 11 est disposé parallèle à celui-ci et une soupape à trois voies est prévue pour l'inversion d'une arrivée de fluide (18) d'un dispositif vers l'arrivée de fluide (18) de l'autre dispositif.
  12. Procédé destiné à la séparation d'impuretés aimantables de fluides en écoulement au moyen d'un dispositif, notamment selon l'une quelconque des revendications 1 à 11, qui comprend :
    une chambre cylindrique (2) avec une arrivée de fluide (18) pour le fluide contenant des particules aimantables, une sortie de fluide purifié (22) pour le fluide nettoyé et une sortie des particules (28, 38) pour les particules aimantables, sachant que dans la chambre (2) est disposé un corps cylindrique intérieur (4), qui forme avec la paroi de chambre un interstice annulaire (12) traversé par le fluide, et
    au moins un aimant (14, 36), qui est disposé en dehors de l'interstice annulaire dans la direction de l'écoulement entre l'arrivée de fluide (18) et la sortie de fluide purifié (22),
    caractérisé en ce que
    pendant le fonctionnement normal, dans lequel l'interstice annulaire (12) n'est pas traversé par le fluide à nettoyer, un racleur en spirale rotatif (10) disposé dans l'interstice annulaire (12) n'est pas actionné et une soupape d'évacuation (39, 40), prévue à la sortie des particules (28, 38), est fermée, et
    sachant que pendant une période de nettoyage du filtre, le racleur (10) est entraîné au moyen de l'entraînement (8) pour transporter des particules aimantables déposées sur la paroi de la chambre (2) et/ou du tube intérieur (4) vers la sortie des particules (28, 38),
    et la soupape d'évacuation (39, 40) est ouverte pour expulser les particules aimantables raclées par le racleur et transportées vers la sortie des particules à l'aide de la surpression présente dans le système.
  13. Procédé selon la revendication 12,
    caractérisé en ce qu'
    une soupape automatique (26) avec laquelle la sortie de fluide purifié (22) est équipée, est fermée pendant une période de nettoyage du filtre.
  14. Procédé selon la revendication 12,
    caractérisé en ce qu'
    une soupape d'arrivée (20), se trouvant avant ou sur l'arrivée de fluide (18), est fermée pendant la période de nettoyage du filtre.
  15. Procédé selon la revendication 12,
    caractérisé en ce qu'
    un restricteur (26) est incorporé dans la sortie de fluide purifié, qui est placé dans la position d'étranglement pendant la période de nettoyage du filtre.
EP12742812.6A 2012-06-22 2012-06-22 Dispositif et procédé pour séparer des impuretés magnétisables de fluides en écoulement Active EP2864050B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2012/062103 WO2013189549A1 (fr) 2012-06-22 2012-06-22 Dispositif pour séparer des impuretés magnétisables de fluides en écoulement

Publications (2)

Publication Number Publication Date
EP2864050A1 EP2864050A1 (fr) 2015-04-29
EP2864050B1 true EP2864050B1 (fr) 2019-11-27

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US (1) US20150298139A1 (fr)
EP (1) EP2864050B1 (fr)
WO (1) WO2013189549A1 (fr)

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HU5090U (hu) * 2018-05-11 2019-11-28 Evolutionwater Kft Eszköz fluidumok mágneses kezelésére
NO344882B1 (en) 2018-09-17 2020-06-15 Norse Oiltools As Well tool
US11484818B2 (en) * 2019-02-11 2022-11-01 North Carolina State University Self-cleaning screen
CN111085338A (zh) * 2019-12-31 2020-05-01 江西理工大学 一种可调线圈高度带强制排矿装置的磁浮选柱及浮选方法
CN113583728B (zh) * 2021-08-13 2024-05-03 介休市至信科技有限公司 一种劣质煤除硫方法
CN115672546B (zh) * 2023-01-05 2023-05-16 太原理工大学 一种用于磁铁矿精选的旋转磁场螺线管式磁分离器及系统
CN115925027B (zh) * 2023-03-10 2023-05-30 湖南国重环境科技有限责任公司 一种发酵类抗生素生产废水预处理系统

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EP2864050A1 (fr) 2015-04-29
US20150298139A1 (en) 2015-10-22
WO2013189549A1 (fr) 2013-12-27

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