EP0532136B1 - Séparateur magnétique à chaînes - Google Patents

Séparateur magnétique à chaînes Download PDF

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Publication number
EP0532136B1
EP0532136B1 EP92250238A EP92250238A EP0532136B1 EP 0532136 B1 EP0532136 B1 EP 0532136B1 EP 92250238 A EP92250238 A EP 92250238A EP 92250238 A EP92250238 A EP 92250238A EP 0532136 B1 EP0532136 B1 EP 0532136B1
Authority
EP
European Patent Office
Prior art keywords
magnetic filter
magnetic
dirt
chain
filter bars
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.)
Expired - Lifetime
Application number
EP92250238A
Other languages
German (de)
English (en)
Other versions
EP0532136A1 (fr
Inventor
Josef Triesch
Eberhard Kolisch
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.)
Vodafone GmbH
Original Assignee
Mannesmann AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mannesmann AG filed Critical Mannesmann AG
Publication of EP0532136A1 publication Critical patent/EP0532136A1/fr
Application granted granted Critical
Publication of EP0532136B1 publication Critical patent/EP0532136B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • the invention relates to a chain magnetic separator with horizontally arranged magnetic filter rods, which are transported by endlessly rotating conveyor chains or the like at equal intervals and in parallel to each other through the liquid to be cleaned and which pass through a cleaning device above the liquid, in which the magnetic filter rods with the help of straight in their Dirt wipers guided in the longitudinal direction are cleaned, which engage around the magnetic filter rods with recesses shaped according to the profile of the magnetic filter rods.
  • a device of the generic type is known from German patent DE-C-24 29 849.
  • the dirt wipers are carried by pairs of endless chains. A pair is arranged above and a pair below the magnetic filter rods, the dirt wipers attached to the chains are provided with semicircular recesses, so that a Pair of dirt scrapers can clean the entire surface of a filter rod.
  • the magnetic filter rods are moved one cycle at a time, so that two or three magnetic filter rods lying next to one another are coated simultaneously with appropriately long dirt wipers with several semicircular recesses lying next to one another. In this way, each magnetic rod is stripped several times before it is immersed again in the liquid to be cleaned.
  • the dirt removed from the magnetic filter rods with the aid of the dirt wipers is prevented from falling back into the liquid by a discharge device arranged below the cleaning device.
  • the known chain magnetic separator with the rotating chains carrying the dirt wipers is mechanically very complex, the device is subject to high wear and tear because the stripped sludge falls on the lower chains and is maintenance-intensive.
  • the space requirement is also very high due to the chains, the required deflection devices and the drive kinematics. In order to achieve an exact wiping of the magnetic filter rods, a high adjustment accuracy is necessary.
  • the object of the present invention is, based on the prior art described above, to provide a chain magnetic separator with a cleaning device which is not substantially larger than the container holding the liquid to be cleaned and which is simple and robust in terms of mechanics, and with commercially available components is to be created.
  • the dirt wipers above the magnetic filter rods are arranged on a slide which is part of a linear cylinder, preferably a rodless cylinder, and that the slide and / or the cylinder can be raised and lowered vertically on the frame of the chain magnetic separator relative to the magnetic filter rods is arranged.
  • the replacement of the complex chain pairs for driving the dirt wipers with linear cylinders enables the use of a commercially available component that also replaces the previous drive in an extremely space-saving manner with little mechanics.
  • the arrangement of the dirt wipers on the slide moved by the linear cylinder in particular a rodless cylinder, enables the dirt wipers to be lifted by vertical movement of the slide and / or the cylinder. In the raised state, the conveyor chain can be moved one cycle before the dirt wipers are lowered into the working position with the carriage and / or the cylinder.
  • the carriage and / or the cylinder are raised and lowered by vertical lifting cylinders being articulated on both sides of the linear cylinder.
  • lifting cylinders which are operated in synchronism, the entire device is lifted and brought out of the rotating area of the rotating magnetic filter rods.
  • the dirt wipers can be moved from a rest position above the magnetic filter rods into the wiping position in which each dirt wiper engages around the entire circumference of a magnetic filter rod, the recesses of the dirt wipers with radial, the magnetic filter rods facing, in the longitudinal direction extending slots are provided, which can be spread apart when the dirt wipers on the lateral surface of the reduced diameter magnetic filter rods in the end region by means of bevels diverging to the slots.
  • the use of vertically divided scraper elements enables the dirt scraper to be designed in a simple manner, for example from an elastic material such as Vulkolan or the like. Such a material enables the dirt wipers to “latch” into the magnetic filter rods, preferably at the end of the magnetic filter rods, which has a smaller diameter than the magnetic part of the rods.
  • the dirt wipers used in this way are simple to manufacture, inexpensive to purchase and are easily centered on the magnetic filter rods.
  • the dirt wipers can be moved from a rest position above the magnetic filter rods in the working position between two adjacent magnetic filter rods, the dirt wipers being arranged on the slide and pivoting about a vertical central axis by 90 degrees with diametrically opposed plates that are open to the outside there are semicircular recesses which each encompass half a magnetic filter rod profile in a swivel position (stripping position).
  • 1 denotes the container into which the liquid to be cleaned of magnetic particles is introduced at 2.
  • a distributor plate 3 is arranged, which is provided with holes for the cleaned liquid.
  • the conveyor chain 4 is guided around the U-shaped curved distributor plate and can be moved in cycles via a chain wheel with an intermittently loaded piston-cylinder drive 6.
  • the conveyor chain 4 consists of two spaced-apart chain hoists, which carry the magnetic bars 5 between them and guide them in cycles through the liquid in the container 1. During the movement of the magnetic rods 5 through the liquid, magnetic and also non-magnetic dirt settles on the magnetic filter rods 5, which must be removed from the magnetic filter rods after each complete circulation of the conveyor chain 4 by the liquid.
  • the cleaning device 7 to be described later is arranged above the conveyor chain 4 and the magnetic filter rods 5, with the aid of which the magnetic filter rods are freed from dirt.
  • the dirt removed from the magnetic filter rods falls into the discharge trough 8 below the cleaning device 7, in which a screw conveyor 9 is rotatably mounted, which causes the dirt to be transported out of the discharge trough 8.
  • the filtrate collecting inside the distributor plate 3 is removed from the container 1 at 10.
  • FIG. 2 shows an embodiment of the cleaning device according to the invention as it is used for stripping off the magnetic filter rods.
  • the cleaning device 7 is arranged inside the housing 11 on the container 1.
  • the magnetic filter rods 5 are guided on both sides by the conveyor chains 4 transported through the lower region of the housing 11 of the cleaning device 7 and stopped in cycles.
  • a rodless cylinder 12 is arranged in the housing 11, above and parallel to the magnetic filter rods 5.
  • This rodless cylinder 12 carries on its lower side the slide 13, on which stripper elements 14, which extend downward, are arranged.
  • the stripper elements 14 are designed as plates which can each be pivoted through 90 degrees about their vertical central axis 15.
  • a pivot cylinder 16 is used, which acts on the dirt wipers 14 via a lever linkage 17, 18.
  • the plates of the dirt wipers are provided with semicircular recesses 19 which correspond to half the profile of the magnetic filter rods.
  • a recess 19 engages around an adjacent magnetic filter rod, which is wiped off in the direction of movement 20 by moving the slide 13 via the rodless cylinder 14.
  • the stripped dirt falls down into the trough 21 of the screw conveyor 22, which, driven at 23, transports the dirt to the sludge discharge 24.
  • lifting cylinders 25 are provided on both sides of the rodless cylinder 12, which, acting vertically, are articulated at 27 on the one hand on the housing 11 and on the other hand on the levers 26 carrying the rodless cylinder 12.
  • the lifting cylinder 25 is acted upon, the rodless cylinder 12 and with it the slide 13 are raised together with the wipers 14.
  • FIG. 3 the area of the magnetic filter rods 5, which is streaked by the wipers 14, is shown in an enlarged detail.
  • the conveyor chain 4 is shown in the left half of the drawing.
  • the magnetic filter rods 5 are articulated to it at 28.
  • the swivel device for the wipers 14 is shown above the magnetic filter rods 5.
  • the wipers 14 With the - also rodless - swivel cylinder 16, which engages with a driver 29 in the bolt 30 of a lever 18, the wipers 14 are pivoted via the levers 17 connected to the lever 18 at 31, in each case by 90 degrees to their end position.
  • the wipers 14 together with the rodless cylinder 12 can be lifted out of the space between the magnetic filter rods 5, the locking device 32 (FIG. 2) simultaneously releasing the conveyor chain 4 for cyclical further transport in the raised state.
  • the locking device serves to center the magnetic filter rods 5 during the stripping process and at the same time gives the conveyor chain 4 and the magnetic filter rods 5 the necessary hold
  • the dirt wipers 14 are guided by lowering the lifting cylinder 25 into the space between the magnetic filter rods 5 and pivoted there by means of the lever system 16, 17, 18, 30 and 31 by 90 degrees so that the semicircular recesses 19 of the dirt wipers 14 each encompass half the profile of an adjacent magnetic filter rod.
  • the middle of the magnetic filter rods shown is detected on both sides by a dirt wiper 14, so that the two recesses 19 of the two dirt wipers 14 clean the middle rod on all sides.
  • the two outer magnetic filter rods 5 are each only half coated by the wiper 14; there however a cyclical transport of the magnetic filter rods 5 is provided in one and the same direction, all magnetic filter rods 5 are finally cleaned the same number of times by the wipers.
  • FIG. 1 Another embodiment of the dirt wipers is shown in FIG.
  • the rodless cylinder 12 also carries a slide 13 on which three dirt wipers 14 are arranged on a holder 33.
  • the dirt wipers 14 enclose the entire circumference of the magnetic filter rods 5 arranged underneath.
  • the dirt wipers 14 consist of an elastic vulcanized material and are continuously slotted at 34 on their undersides. The slot runs radially in the direction of the magnetic filter rods 5 and ends on the outside in bevels 35 which diverge into the slots 34.
  • the magnetic filter rods 5 are thinner in diameter at one end 36.
  • the dirt wipers 14 are placed, in which, by lowering the lifting cylinder 25, the rodless cylinder 12 is moved down together with the slide 13 and the holder 33, as a result of which the slits 34 are spread out by means of the bevels 35 and the diameter at the end 36 the magnetic filter rods 5 are pressed. Thereafter, the stripping process in the direction designated by 20 in Figure 2 is initiated by acting on the rodless cylinder 12.

Landscapes

  • Non-Mechanical Conveyors (AREA)
  • Cleaning In General (AREA)

Claims (6)

  1. Séparateur magnétique à chaînes comportant des tiges de filtrage magnétiques agencées horizontalement, transportées en cadence, à distances identiques et parallèlement les unes par rapport aux autres, à travers le liquide à nettoyer à l'aide de chaînes d'avance rotatives sans fin ou analogues, et traversant au-dessus du liquide un dispositif de nettoyage, dans lequel les tiges de filtrage magnétiques sont nettoyées à l'aide de racleurs d'impuretés guidés de façon rectiligne dans leur direction longitudinale et entourant les tiges de filtrage magnétiques avec des évidements formés en correspondance au profil des tiges de filtrage magnétiques,
    caractérisé en ce que les racleurs d'impuretés (14) sont agencés au-dessus des tiges de filtrage magnétiques (5) sur un chariot (13), qui fait partie d'un cylindre linéaire (12), de préférence un cylindre sans tige de piston, et en ce que le chariot (13) et/ou le cylindre (12) sont agencés, par rapport aux tiges de filtrage magnétiques (5), verticalement de façon à pouvoir être soulevés et abaissés (25) sur le cadre du séparateur magnétique à chaînes.
  2. Séparateur magnétique à chaînes selon la revendication 1,
    caractérisé en ce que des cylindres de levage verticaux (25) sont articulés des deux côtés du cylindre linéaire (12).
  3. Séparateur magnétique à chaînes selon l'une des revendications 1 ou 2,
    caractérisé en ce que les racleurs d'impuretés (14) peuvent être déplacés d'une position de repos au-dessus des tiges de filtrage magnétiques (5) dans la position de raclement, dans laquelle chaque racleur d'impuretés (14) entoure par son évidement (19) une tige de filtrage magnétique (5) sur toute sa périphérie, les évidements (19) des racleurs d'impuretés (14) étant munis de fentes radiales (34), en regard des tiges de filtrage magnétiques (5) et s'étendant dans leur direction longitudinale, fentes qui, lors de la mise en place des racleurs d'impuretés (14) sur la surface d'enveloppe des tiges de filtrage magnétiques (5) présentant un diamètre réduit dans la zone extrême (36), peuvent être écartées au moyen de biseaux (35) divergeant vers les fentes.
  4. Séparateur magnétique à chaînes selon l'une des revendications 1 ou 2,
    caractérisé en ce que les racleurs d'impuretés (14) peuvent être déplacés d'une position de repos au-dessus des tiges de filtrage magnétiques (5) dans la position de travail entre deux tiges de filtrage magnétiques adjacentes (5), les racleurs d'impuretés (14) étant constitués de plaques agencées sur le chariot (13) de façon à pouvoir pivoter selon 90° autour d'un axe central vertical (17) et présentant des évidements (19) en forme de demi-cercle, diamétralement opposés et ouverts vers l'extérieur, évidements qui entourent dans une position de pivotement (position de raclement) à chaque fois un demi-profilé de tige de filtrage magnétique.
  5. Séparateur magnétique à chaînes selon l'une des revendications 1 à 4,
    caractérisé en ce que, pour le transport en cadence des tiges de filtrage magnétiques (5) à travers le liquide, la chaîne d'avance (4) est guidée par l'intermédiaire d'une roue d'entraînement pouvant être entraînée par un cylindre pneumatique (6) alimenté de façon intermittente par l'intermédiaire d'une course libre.
  6. Séparateur magnétique à chaînes selon l'une des revendications 1 à 5,
    caractérisé en ce que, pendant le processus de raclement, la position exacte des tiges magnétiques peut être ajustée par des dispositifs d'arrêt (32).
EP92250238A 1991-09-10 1992-09-02 Séparateur magnétique à chaînes Expired - Lifetime EP0532136B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4130421 1991-09-10
DE4130421A DE4130421A1 (de) 1991-09-10 1991-09-10 Kettenmagnetabscheider

Publications (2)

Publication Number Publication Date
EP0532136A1 EP0532136A1 (fr) 1993-03-17
EP0532136B1 true EP0532136B1 (fr) 1995-03-22

Family

ID=6440484

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92250238A Expired - Lifetime EP0532136B1 (fr) 1991-09-10 1992-09-02 Séparateur magnétique à chaînes

Country Status (2)

Country Link
EP (1) EP0532136B1 (fr)
DE (2) DE4130421A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4337484C1 (de) * 1993-11-03 1995-03-09 Fes Gmbh Ketten-Magnetabscheider mit Abstreifeinrichtung für Magnetstäbe
DE19726745B4 (de) * 1997-06-24 2007-06-21 Bär + Co. Anlagentechnik GmbH Verfahren zum Abscheiden von Teilchen
US6277276B1 (en) 2000-02-11 2001-08-21 Jack R. Bratten Filter apparatus with magnetic separation
CA2621803C (fr) * 2005-08-24 2017-04-11 Romar International Limited Elimination de particules magnetiques d'un fluide
CN102179295A (zh) * 2011-03-09 2011-09-14 李泽 一种连续链式流体除铁方法及装置
WO2013189549A1 (fr) * 2012-06-22 2013-12-27 Norbert Ruez Gmbh & Co.Kg Dispositif pour séparer des impuretés magnétisables de fluides en écoulement
GB201213458D0 (en) 2012-07-27 2012-09-12 Romar Internat Ltd Apparatus and method for handling liquids or slurries from an oil or gas process
CN107570321A (zh) * 2017-09-19 2018-01-12 荆门市格林美新材料有限公司 一种循环式除磁性异物的装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL177804C (nl) * 1974-06-21 Montanus Industrieanlagen Gmbh Magneetfilterinrichting.
DE2710005C2 (de) * 1977-03-08 1982-07-15 Montanus Industrieanlagen Gmbh, 4300 Essen Magnetfilteranlage
DE2903178C2 (de) * 1979-01-27 1985-01-31 Mannesmann AG, 4000 Düsseldorf Magnetfilter-Anlage

Also Published As

Publication number Publication date
DE59201716D1 (de) 1995-04-27
DE4130421C2 (fr) 1993-06-17
EP0532136A1 (fr) 1993-03-17
DE4130421A1 (de) 1993-03-11

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