EP1839007B1 - Agregat avec un dispositif permettant d'eliminer des residus solides de metal fondu d'un four a fusion - Google Patents

Agregat avec un dispositif permettant d'eliminer des residus solides de metal fondu d'un four a fusion Download PDF

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Publication number
EP1839007B1
EP1839007B1 EP06706284A EP06706284A EP1839007B1 EP 1839007 B1 EP1839007 B1 EP 1839007B1 EP 06706284 A EP06706284 A EP 06706284A EP 06706284 A EP06706284 A EP 06706284A EP 1839007 B1 EP1839007 B1 EP 1839007B1
Authority
EP
European Patent Office
Prior art keywords
melting furnace
cleaning head
cleaning
furnace
melt residues
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.)
Not-in-force
Application number
EP06706284A
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German (de)
English (en)
Other versions
EP1839007A1 (fr
Inventor
Robert Passarotto
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.)
PENOX ITALY Srl
Original Assignee
PENOX ITALY Srl
PENOX ITALY Srl
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Publication date
Application filed by PENOX ITALY Srl, PENOX ITALY Srl filed Critical PENOX ITALY Srl
Publication of EP1839007A1 publication Critical patent/EP1839007A1/fr
Application granted granted Critical
Publication of EP1839007B1 publication Critical patent/EP1839007B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
    • F27B7/2075—Removing incrustations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/16—Making or repairing linings increasing the durability of linings or breaking away linings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D25/00—Devices or methods for removing incrustations, e.g. slag, metal deposits, dust; Devices or methods for preventing the adherence of slag

Definitions

  • the invention relates to an aggregate according to claim 1, comprising a device for removing solid melt residues from a melting furnace, in particular from a melting furnace for metal oxide production.
  • molten metal is vaporized, the metal vapor is oxidized, the resulting metal oxide is then cooled and collected in a filter. To evaporate the metal, it is heated to the appropriate evaporation temperature in a melting furnace.
  • a melting furnace By evaporating the molten metal In the melting furnace, solid deposits or melt residues are formed in the melting furnace within the shortest possible time, which, on the one hand, hinder further heating of the metal and, on the other hand, continuously reduce the volume of the melting furnace to be filled.
  • impurities from the molten metal concentrate, which lead to an increase of impurities in the metal oxide to be produced, if the melt residues are not regularly removed from the furnace.
  • the furnace is freed of solid melt residues.
  • the removal of the solid melt residues is usually carried out manually with the aid of a pneumatic hammer.
  • the smelting furnace has to cool down for at least 24 hours before starting to remove the smelting residue, since the operator who runs the Cleaning the furnace, otherwise endangered by the high temperatures and resulting gases. After cleaning, the furnace must be brought back up to its operating temperature, so that the manufacturing process is interrupted over a longer period of time.
  • an object of the invention to provide an aggregate comprising a melting furnace, in particular a furnace for metal oxide, a setting device for the furnace and a device for removing solid melt residues from the furnace, wherein the melt residues quickly and without significant impairment of the manufacturing process can be removed.
  • the invention solves this problem by an aggregate having the features of claim 1.
  • an aggregate with a device for removing the solid melt residues from the furnace, which is equipped with a rotatably mounted cleaning head for the mechanical removal of the adhering in the melting furnace melt residues.
  • this cleaning head can be spatially moved relative to the melting furnace, so that the cleaning head can be retracted into the melting furnace for cleaning and remove any melt residues from any point inside the melting furnace.
  • the cleaning head is rotatably driven for this purpose and can be equipped with appropriate cleaning elements, such as cutting, scrapers and the like.
  • the melting furnace does not have to be switched off. Rather, it is sufficient to empty the furnace, ie to heat until all the molten metal has evaporated. Then the still hot melting furnace are cleaned by means of the device, with high repeatability, the solid melt residues can be removed from the furnace. As a result of the unit according to the invention, it is not only possible to significantly reduce the duration of cleaning compared to the prior art. In addition, the furnace does not have to be switched off during cleaning, but can be put back into operation immediately after cleaning.
  • the device for removing solid melt residues from the smelting furnace may also be equipped with an automatic control, so that operation by operating personnel is not required. If the device is equipped with such an automatic control, it is furthermore advantageous if the automatically controlled device automatically frees the melting furnace from solid melt residues in accordance with a predetermined cleaning cycle.
  • the device for removing solid melt residues from the melting furnace with a setting device for the melting furnace, which is used to agitate the melting furnace between an operating position in which the melt is melted and vaporized, and a cleaning position in which the cleaning head is to be moved into the melting furnace for removing the melt residues.
  • the cleaning head with the manipulation device can thus be arranged laterally of the melting furnace, so that the cleaning head and the manipulation device do not impair the proper operation of the melting furnace. Only for cleaning, the furnace then has to be moved by means of the adjusting device in its cleaning position be in which the furnace is arranged in an optimized position relative to the cleaning head and the manipulation device for removing the melt residues.
  • the adjusting device of the unit according to the invention is used when the melting furnace is a crucible melting furnace, which stands upright in its operating position.
  • the adjusting device which is designed as a pivoting device in this development, then the crucible melting furnace between its operating position in which it stands upright, and its cleaning position in which it is inclined from the vertical, are pivoted back and forth.
  • the manipulation device has a first arm, which is pivotable about a first pivot axis, and a second arm pivotable on the first arm about a second pivot axis, on which the cleaning head is rotatably mounted.
  • the pivot axes of the two arms thereby run at least approximately parallel to one another in order to be able to cover as large a spatial area as possible with the aid of the manipulation device.
  • the axis of rotation of the cleaning head also runs approximately parallel to the pivot axes of the two arms.
  • a separately actuated actuator is used in each case.
  • hydraulic cylinders are particularly preferably used, the have a comparatively low volume and at the same time are able to generate the adjusting forces to be applied to the arms and the forces required to remove the melt residues feed forces.
  • hydraulic cylinders are prone to failure, even in extreme environmental conditions such as prevailing in smelting operations, such as in the production of metal oxides.
  • the rotary drive for the cleaning head is provided in the manipulating device formed as an arm on the second arm, preferably.
  • the manipulation device with its movable components and the associated drives is arranged as far away as possible from the hot melting furnace during the cleaning process
  • the shaft is designed so that its strength is sufficient to withstand the deformation forces resulting from the removal of the melt residues.
  • a correspondingly shaped milling head is preferably used, with which the solid melt residues can be easily removed from the furnace.
  • the manipulation device is provided with a frame which is longitudinally displaceable for inserting the cleaning head into and out of the cleaning head from the furnace.
  • the frame is mounted displaceably on a longitudinal guide and is preferably adjusted by means of a rotary drive, which cooperates via a spindle nut and a standing with this engaging spindle with the frame for moving.
  • a spindle nut with spindle has the advantage that the frame can be moved with high repeatability and high precision.
  • the cleaning head can thus have a defined space which only limited by the length of the arms and the length of the longitudinal guides, reach.
  • the apparatus for removing solid melt residues can also be used when the furnace is still warm, as already explained, the gases rising from the furnace and suspended solids and particles which are formed during the removal of the melt residues can be released. be sucked by means of a suction device. If the unit is permitted with the adjusting device described above, the suction device is preferably positioned in a position in which it can suck the gases and suspended matter with maximum effect when the furnace is in its cleaning position.
  • Fig. 1 Shown schematically is a zinc oxide manufacturing facility 10 equipped with a debris removal apparatus 12
  • the plant 10 has a melting furnace 14, which is arranged below an intake pipe 16.
  • the intake pipe 16 is connected via a line 18 with a decanter 20 in flow communication.
  • the decanter 20 in turn communicates with a filter device 24 formed from a total of four filter units 24 via a line 26 in fluid communication.
  • a transport device 28 for transporting the zinc oxide obtained and a packing direction 30 adjoining it are arranged below the filter units 22 below the filter units 22, a transport device 28 for transporting the zinc oxide obtained and a packing direction 30 adjoining it are arranged.
  • a feed unit 32 is arranged, which sucks and filters gases flowing past the intake pipe 16.
  • the system 10 is equipped with the apparatus 12 for removing melt residues, the structure and mode of operation of which are described below with reference to FIGS Fig. 2 to 4 is explained in more detail.
  • Fig. 2 is a perspective view of a manipulation unit 34 is shown, which serves for the spatial reciprocation of a milling head 36 formed as cleaning head.
  • the manipulation device 34 has a base 38, which is equipped with two parallel longitudinal guides 40 and 42. As the Fig. 3 and 4 show, the base 38 rests on rollers 44, so that the manipulation unit 34 can be moved in position, for example, to be reciprocated between a plurality of melting furnaces 14.
  • the frame 46 In order to move the frame 46 on the longitudinal guides 40 and 42, the frame 46 is equipped with two spindle nuts 48, which with a rotatably mounted on the base 38 spindle 50 are engaged. With the aid of a rotary drive 52 (see. Fig. 3 and 4 ), the spindle 40 can be rotated about its longitudinal axis, wherein the rotation causes an adjustment of the spindle nuts 48 along the spindle 50, which in turn cause a movement of the frame 46 along the longitudinal guides 40 and 42.
  • a first pair of arms 54 is pivotally mounted on a parallel to the two longitudinal guides 40 and 42 extending first pivot axis A 1 .
  • a second pair of arms 56 is pivotally mounted on a second pivot axis A 2 .
  • the second pivot axis A 2 is parallel to the first pivot axis A 1 and thus parallel to the longitudinal guides 40 and 42nd
  • a rotary drive 58 is provided, whose axis of rotation R is also parallel to the two pivot axes A 1 and A 2 and parallel to the two longitudinal guides 40 and 42.
  • the rotary drive 58 drives a shaft 60, which extends parallel to the longitudinal guide 40 and 42 and at the free end of the milling head 36 is releasably secured.
  • FIG. 4 shows, in which a front view of the device 12 is shown, the two pairs of arms 54 and 56 are adjusted by means of two hydraulic cylinders 62 and 64.
  • this device 12 allows axial feed movement and transverse axial parallel movement of the milling head 36.
  • the device 12 further comprises a pivoting device 66, with which the melting furnace 14 between its operating position in which it stands upright and a cleaning position in which it extends horizontally inclined, can be pivoted back and forth.
  • the pivoting device 66 has for this purpose a receptacle 68, which are provided at joints 70 and 72 pivotally mounted on an edge of a pit 74.
  • the actual crucible 76 see. Fig. 3
  • two hydraulic cylinders 78 are coupled, of which for clarity in Fig. 3 only one is shown. With the help of the hydraulic cylinder 78, the receptacle 68 and thus the melting furnace 14 between the operating position and the cleaning position can be pivoted back and forth.
  • the hydraulic cylinders 78 are retracted so that the crucible 76 with its opening runs at least approximately horizontally. During the heating, the molten zinc rises as vapor and is removed by the suction pipe 16 arranged above the crucible 76 and further processed in the manner described above.
  • the melting furnace 14 is initially heated until at least approximately all zinc metal has evaporated from the melting furnace 14. Subsequently, the still hot melting furnace 14 is pivoted by the pivoting device 66 by extending the hydraulic cylinder 78 in its cleaning position, in which the crucible 76 extends at least approximately vertically with its opening. Then, by activating the spindle 50, the manipulation device 34 is moved with the milling head 36 into the crucible 76, at the same time the rotary drive 58 in operation is set to enable the milling head 36 in rotation.
  • the milling head 36 After the start-up of the milling head 36, the milling head 36, for example, according to a predetermined cleaning cycle by adjusting the two arm pairs 54 and 56 to each other and by moving the frame 46 along the L Lucassftihrung 40 and 42 within the crucible 76 back and so drove that at least approximately to the inner surface of the crucible 76 adherent solid melt residues are removed. By correspondingly regular movement of the frame 46, the resulting loose melt residues can be removed from the scintillation pot 76.
  • the milling head 36 is moved back out of the crucible 76 and the still lying in the crucible 76 loose melt residues, for example by means of a tool by hand from the crucible 76 or the furnace 14 with the help the pivoting device 66 further inclined so that the Schmelzrüdcknies slide out of the furnace 14.
  • the crucible 76 is again pivoted back by means of the pivoting device 66 in its operating position and can be charged again with zinc and used for the further production of zinc oxide.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Processing Of Solid Wastes (AREA)
  • External Artificial Organs (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)

Claims (6)

  1. Agrégat comprenant un four de fusion (14), en particulier un four de fusion pour la fabrication d'oxyde métallique, un dispositif de pivotement (66) pour le four de fusion (14) et un dispositif (12) pour l'enlèvement de résidus de fusion solides du four de fusion (14), le dispositif (12) présentant une tête de nettoyage (36) entraînée de façon rotative pour l'enlèvement mécanique des résidus de fusion adhérant dans le four de fusion (14), un entraînement à rotation (58) pour la tête de nettoyage (36) et un dispositif de manipulation (34) pour le déplacement dans l'espace de la tête de nettoyage (36) par rapport au four de fusion (14), et le dispositif de pivotement (66) étant adapté pour des allers et retours du four de fusion (14) entre une position de service pour la fusion de l'objet à faire fondre et une position de nettoyage, dans laquelle la tête de nettoyage (36) doit être déplacée dans le four de fusion (14) pour l'enlèvement des résidus de fusion,
    le dispositif (34) de manipulation présentant une base (38), qui est équipée de deux guides longitudinaux (40, 42) agencés parallèlement entre eux, et un bâti (46), qui est monté de façon à pouvoir coulisser dans la longueur par les guides longitudinaux (40, 42) pour l'introduction de la tête de nettoyage (36) dans le four de fusion (14) et l'extraction de la tête de nettoyage (36) de ce four, une première paire de bras (54) étant montée de façon pivotante sur le bâti (46) sur un premier axe de pivotement A1, agencé parallèlement aux deux guides longitudinaux (40, 42), et une seconde paire de bras (56) montée de façon pivotante sur l'extrémité libre de la première paire de bras (54) sur un second axe de pivotement A2, le second axe de pivotement A2 étant agencé parallèlement au premier axe de pivotement A1 et parallèlement aux guides longitudinaux (40, 42), un entraînement en rotation (58) étant prévu sur l'extrémité libre de la seconde paire de bras (56), entraînement dont l'axe de rotation R est agencé également parallèlement aux deux axes de pivotement A1, A2, ainsi que parallèlement aux deux guides longitudinaux (40, 42), l'entraînement en rotation (58) entraînant une tige (60) qui s'étend parallèlement au guide longitudinal (40, 42), et sur l'extrémité libre de laquelle la tête de nettoyage (36) est fixée de façon amovible de telle sorte que le dispositif de manipulation est disposé avec ses composants mobiles et les entraînements spécifiques à distance du four de fusion pendant l'opération de nettoyage.
  2. Agrégat selon la revendication 1, caractérisé en ce que le four de fusion (14) est un four de fusion à creuset, qui est maintenu vertical dans sa position de service, et en ce que le dispositif de positionnement est un dispositif de pivotement (66), qui fait basculer le four de fusion à creuset en faisant des allers et retours entre sa position de service et sa position de nettoyage, dans laquelle le four de fusion à creuset est incliné à partir de la partie verticale.
  3. Agrégat selon la revendication 1, caractérisé en ce que le premier bras (54) et le second bras (56) peuvent être déplacés chacun par un actionneur, de préférence un vérin hydraulique (62, 64) autour de leurs axes de pivotement (A1, A2).
  4. Agrégat selon au moins l'une quelconque des revendications précédentes, caractérisé en ce que la tête de nettoyage (36) est conçue sous forme de tête de fraisage.
  5. Agrégat selon au moins l'une quelconque des revendications précédentes, caractérisé en ce que, sur le bâti (46), au moins un écrou de broche (48) est en prise avec une broche (50), qui peut être entraînée par un entraînement en rotation (52) pour le déplacement du bâti (46) le long du guide longitudinal (40, 42).
  6. Agrégat selon au moins l'une quelconque des revendications précédentes, caractérisé par un dispositif d'aspiration pour l'aspiration de gaz et de produits en suspension pendant l'enlèvement des résidus de fusion.
EP06706284A 2005-01-19 2006-01-18 Agregat avec un dispositif permettant d'eliminer des residus solides de metal fondu d'un four a fusion Not-in-force EP1839007B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005002516A DE102005002516A1 (de) 2005-01-19 2005-01-19 Vorrichtung zum Entfernen fester Schmelzrückstände aus einem Schmelzofen sowie Anlage zur Metalloxidherstellung mit einer derartigen Vorrichtung
PCT/EP2006/000415 WO2006077098A1 (fr) 2005-01-19 2006-01-18 Dispositif permettant d'eliminer des residus solides de metal fondu d'un four a fusion et installation de production d'oxyde metallique pourvue dudit dispositif

Publications (2)

Publication Number Publication Date
EP1839007A1 EP1839007A1 (fr) 2007-10-03
EP1839007B1 true EP1839007B1 (fr) 2009-09-02

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP06706284A Not-in-force EP1839007B1 (fr) 2005-01-19 2006-01-18 Agregat avec un dispositif permettant d'eliminer des residus solides de metal fondu d'un four a fusion

Country Status (4)

Country Link
EP (1) EP1839007B1 (fr)
AT (1) ATE441827T1 (fr)
DE (2) DE102005002516A1 (fr)
WO (1) WO2006077098A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010003839A1 (de) 2010-04-09 2011-10-13 BSH Bosch und Siemens Hausgeräte GmbH Türabsteller für ein Kältegerät

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE738533C (de) * 1939-05-05 1943-08-19 Schwedler Komm Ges Fuer Elektr Vorrichtung zum Reinigen der Schmelzrinnen von Induktionsoefen
US3471888A (en) * 1966-01-03 1969-10-14 Grant Inc Louis A Soaking pit chipper
NL175268C (nl) * 1975-04-22 1984-10-16 Zeevenhooven Bv Inrichting voor het verwijderen van aan de vuurvaste binnenbekleding van een metaalgietpan of houder aangebrachte afzettingen.
FR2371261A1 (fr) * 1976-11-19 1978-06-16 Bozel Electrometallurgie Installation de decrassage de poches de coulee
DE2723547C2 (de) * 1977-05-25 1983-10-20 Otto Junker Gmbh, 5107 Simmerath Vorrichtung zum Entfernen der Schlackenansätze sowie infiltrierten inneren Randschichten an Schmelz- oder Gießgefäßen
NO147940C (no) * 1979-04-06 1983-07-13 Elkem As Anordning for rensing av digler.
DE3136236A1 (de) * 1981-05-02 1982-11-25 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Einrichtung zum ausbruch von hochofenrinnen u.dgl.
DE3200921A1 (de) * 1982-01-14 1983-07-21 Marks Gmbh & Co Kg, 4350 Recklinghausen "vorrichtung insbesondere zur entfernung von schlackeansaetzen von torpedopfannen o.dgl."
US4539725A (en) * 1982-09-29 1985-09-10 Aluminum Company Of America Apparatus for cleaning furnace walls
DE3242908A1 (de) * 1982-11-20 1984-05-24 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Fraesgeraet zum reinigen von schmelzoefen u.dgl.
JPS6089508A (ja) * 1983-10-19 1985-05-20 Mitsubishi Electric Corp 粉体の製造方法
JPH0483817A (ja) * 1990-07-25 1992-03-17 Mitsubishi Electric Corp 誘導加熱装置
DE4106537A1 (de) * 1991-03-01 1992-09-03 Degussa Verfahren zum teilkontinuierlichen schmelzen keramischen materials in induktionsschmelzoefen mit sinterkrustentiegel, ein hierfuer geeigneter ofen und vorrichtung zum periodischen schmelzanstich
KR950001904B1 (ko) * 1991-06-17 1995-03-06 신닛뽄 세이테쯔 카부시키가이샤 출선구 개공기
DE59803534D1 (de) * 1998-06-02 2002-05-02 Tml Technik Gmbh Teleskopsyste Verfahren und vorrichtung zum abtragen und/oder herausbrechen von schichten bzw. bereichen aus untergründen
DE29913152U1 (de) * 1999-07-28 1999-12-16 Mkm Mansfelder Kupfer Und Mess Reinigungsvorrichtung für metallurgische Öfen, insbesondere Tiegelöfen

Also Published As

Publication number Publication date
DE502006004732D1 (de) 2009-10-15
EP1839007A1 (fr) 2007-10-03
ATE441827T1 (de) 2009-09-15
DE102005002516A1 (de) 2006-07-27
WO2006077098A1 (fr) 2006-07-27

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