EP2253916A1 - Agrégat de fusion et de traitement métallurgique - Google Patents

Agrégat de fusion et de traitement métallurgique Download PDF

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Publication number
EP2253916A1
EP2253916A1 EP09006813A EP09006813A EP2253916A1 EP 2253916 A1 EP2253916 A1 EP 2253916A1 EP 09006813 A EP09006813 A EP 09006813A EP 09006813 A EP09006813 A EP 09006813A EP 2253916 A1 EP2253916 A1 EP 2253916A1
Authority
EP
European Patent Office
Prior art keywords
gas
nozzles
gas purging
nozzle
molten metal
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.)
Granted
Application number
EP09006813A
Other languages
German (de)
English (en)
Other versions
EP2253916B1 (fr
Inventor
Bernhard Handle
Bojan Zivanovic
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.)
Refractory Intellectual Property GmbH and Co KG
Original Assignee
Refractory Intellectual Property GmbH and Co KG
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
Priority to PL09006813T priority Critical patent/PL2253916T3/pl
Application filed by Refractory Intellectual Property GmbH and Co KG filed Critical Refractory Intellectual Property GmbH and Co KG
Priority to EP09006813A priority patent/EP2253916B1/fr
Priority to DE502009000332T priority patent/DE502009000332D1/de
Priority to AT09006813T priority patent/ATE496267T1/de
Priority to ES09006813T priority patent/ES2357684T3/es
Priority to CA2760352A priority patent/CA2760352C/fr
Priority to JP2012511161A priority patent/JP5421455B2/ja
Priority to AU2010251491A priority patent/AU2010251491B2/en
Priority to KR1020117026026A priority patent/KR101322572B1/ko
Priority to PCT/EP2010/002467 priority patent/WO2010133283A1/fr
Priority to BRPI1011059A priority patent/BRPI1011059A2/pt
Priority to PE2011001970A priority patent/PE20121144A1/es
Priority to CN201080022275.5A priority patent/CN102428335B/zh
Publication of EP2253916A1 publication Critical patent/EP2253916A1/fr
Application granted granted Critical
Publication of EP2253916B1 publication Critical patent/EP2253916B1/fr
Priority to CL2011002867A priority patent/CL2011002867A1/es
Active 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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B15/00—Obtaining copper
    • C22B15/0026—Pyrometallurgy
    • C22B15/0028—Smelting or converting
    • C22B15/003—Bath smelting or converting
    • C22B15/0041—Bath smelting or converting in converters
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B15/00—Obtaining copper
    • C22B15/0026—Pyrometallurgy
    • C22B15/0028—Smelting or converting
    • C22B15/003—Bath smelting or converting
    • C22B15/0041—Bath smelting or converting in converters
    • C22B15/0043—Bath smelting or converting in converters in rotating converters
    • 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
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
    • F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
    • F27B3/22—Arrangements of air or gas supply devices
    • 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
    • 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
    • F27B7/36—Arrangements of air or gas supply devices
    • 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
    • F27B7/36—Arrangements of air or gas supply devices
    • F27B7/362—Introducing gas into the drum axially or through the wall
    • 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
    • F27D25/008—Devices or methods for removing incrustations, e.g. slag, metal deposits, dust; Devices or methods for preventing the adherence of slag using fluids or gases, e.g. blowers, suction units
    • 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
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/16—Introducing a fluid jet or current into the charge
    • 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
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/18—Charging particulate material using a fluid carrier
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/05—Refining by treating with gases, e.g. gas flushing also refining by means of a material generating gas in situ

Definitions

  • the invention relates to a metallurgical melting and treatment unit, in particular a substantially cylindrical vessel for receiving and treating a non-ferrous metal melt.
  • melt can penetrate into the nozzle.
  • chemical reactions can lead to the deposition of solids, for example deposits of magnetite (Fe 3 O 4 ).
  • a gradual "growth" of the process nozzles can occur if the free nozzle cross-section is reduced. This reduces the gas throughput per unit of time with an available gas pressure. The productivity decreases.
  • the invention is based on the object of providing a vessel for melting metal, for receiving and treating a molten metal, in particular a non-ferrous molten metal, in which the nozzle zone with the nozzles remains fully functional over long periods of time. As far as possible existing systems should be retrofitted.
  • FIGS. 1 and 2 show the converter in a position called "working position". Accordingly, the nozzle 10 extends in this position substantially horizontally and in a plane perpendicular to the also substantially horizontally oriented longitudinal axis LL of the converter.
  • the mouth area 10m slightly surmounted the refractory lining 14 (in the exemplary re-delivery shown here).
  • a plurality of such nozzles 10 are arranged on the longitudinal side of the converter at a distance from each other along an imaginary line, as shown schematically in FIG FIG. 1 shown.
  • the treatment gas here: air
  • the nozzles 10 which have an inner diameter of, for example 5 cm, in the melt 50, where it leaves the nozzle 10 in the form of relatively large bubbles 52 and rises upwards.
  • the separation of the bubbles from the nozzle takes place in the upper mouth region of the nozzle.
  • a flow of the melt 50 occurs, as indicated by the arrows in FIG FIG. 2 indicated.
  • the disadvantageous flow course of the melt in the nozzle orifice and the pressure of the melt acting on the nozzle orifice promote the penetration of melt into the nozzle and the formation of solid lugs 10a in the lower region of the nozzle orifice, as in FIG FIG. 2 indicated schematically.
  • gas leaving the gas purging devices 20 for example an inert gas, such as argon
  • the gas leaving the gas purging devices 20 flows against the nozzle orifice (s) 10m and is guided as close as possible in front of or past the nozzle orifices 10m.
  • the melt flow is advantageously influenced in such a way that the melt does not enter the nozzle orifice at all or only to a very small extent, and thus is no longer or only to a limited extent available for the formation of deposits.
  • the relatively small gas bubbles 54 introduced via the gas purging device 20 lead to a melt-gas mixture whose density is lower than that of the pure melt.
  • the process gas (air or air-oxygen mixture) at the same inlet pressure penetrate deeper into the melt, resulting in an improved distribution of the process gas.
  • the residence time of the air bubbles in the melt increases, so that overall a significantly improved reaction behavior between air bubbles 52 and melt sets and thus better utilization of the process gas is achieved.
  • each nozzle is assigned its own gas purging device, so that fine gas bubbles can be selectively guided into the muzzle region of an associated nozzle by a gas purging device.
  • a gas purging device can also be assigned to a group of nozzles.
  • FIG. 4 is such an embodiment (an inside view against the refractory lining 14) of a converter according to FIG. 1 shown in FIG. 4 however, in the design according to the invention with gas purging devices 20 below the nozzles 10.
  • each gas purging device 20 has a rectangular gas outlet side end face 20m.
  • the size of the gas purging devices 20 is such that the gas discharged from a gas purging device 20, for example nitrogen, can be selectively supplied to two nozzles 10 arranged above it.
  • the gas purging devices 20 may be formed with a different geometry, in particular in the area of the gas outlet-side end face and thus, for example, have a circular end face. Again, however, that, for example, a nozzle 10 then a gas purging device 20 can be assigned, but also a (larger) gas purging unit multiple nozzles 10th
  • the arrangement of the gas purging devices 20 is analogous to the nozzle row in FIG. 1 such that the gas outlet surfaces of the gas purging devices 20 are mounted along an imaginary straight line parallel to the axis of the converter. It is also possible to place the gas purging devices 20 at different heights in the refractory lining 14.
  • FIG. 3 shows that the gas purging devices 20 are otherwise installed similar to the nozzles 10 through the metal shell 12 and the refractory lining 14.
  • the gas purging devices 20 to direct as fine gas bubbles as possible in front of the mouth region of the nozzles 10 in order to influence the melt flow in such a way that penetration of the melt into the nozzle and deposits in the nozzle are avoided better utilization of the process gas is achieved.
  • the gas purging devices 20 may be formed, for example, with so-called undirected porosity.
  • An undirected porosity resembles a sponge-like structure, wherein the gas, depending on the pore structure, seeks an irregular path through the ceramic base material of the gas purging plug.
  • Such gas purging devices with undirected porosity are known and are therefore not further illustrated here.
  • the gas purgers 20 may also be formed with directional porosity.
  • the gas is passed through discrete gas channels with a targeted flow direction through the flushing element.
  • Combinations of directed and undirected porosity can also be formed within a gas purging device 20 or within a series of gas purging devices 20.
  • the process gas is the gas that is supplied via the nozzles 10.
  • the refractory wear is significantly reduced.
  • the penetration of melt into the nozzle orifice and the deposits at the nozzle orifice are significantly reduced.
  • the entire nozzle cross-section remains free for a long time without cleaning and the supply of process gas is much more constant than in the prior art. Downtimes of the unit are minimized.
  • the gas purging device 20 is a gas purging plug, which has a non-directional porosity throughout, wherein the gas (here: nitrogen) via a gas supply line 22 and a arranged between gas supply line 22 and porous refractory member 24 gas distribution chamber 26 is guided.
  • gas here: nitrogen
  • Such a gas purging plug has been state of the art for decades, but for other applications.
  • the gas outlet-side end face 20m of the gas purging device 20 runs in alignment with the inside of the refractory lining 14, but it can also project slightly into the molten metal 50. In any case, the gas outlet end face 20m is in direct contact with the melt 50 during the flushing operation.
  • the gas bubbles as they are to be introduced via the gas purging 20 into the molten metal 50, typically have bubble diameter ⁇ 10 mm.
  • the average diameter of the bubbles supplied via the nozzles 10 to the mean diameter of the bubbles supplied via the gas purging device 20 is usually from 10: 1 to 200: 1.
  • the shortest distance between nozzles 10 and associated Ga may be on the melt-facing side of the refractory lining, the shortest distance between nozzles 10 and associated Ga Why Stein 20 2 to 100 cm, for example 5 to 50 cm.
  • the angle ⁇ between the projection of the nozzle axis and the projection of the axis of the associated gas purging device on a plane perpendicular to the longitudinal axis L-L of the unit level may be 10 ° - 80 °, preferably 10 ° - 40 °.
EP09006813A 2009-05-20 2009-05-20 Agrégat de fusion et de traitement métallurgique Active EP2253916B1 (fr)

Priority Applications (14)

Application Number Priority Date Filing Date Title
EP09006813A EP2253916B1 (fr) 2009-05-20 2009-05-20 Agrégat de fusion et de traitement métallurgique
DE502009000332T DE502009000332D1 (de) 2009-05-20 2009-05-20 Metallurgisches Schmelz- und Behandlungsaggregat
AT09006813T ATE496267T1 (de) 2009-05-20 2009-05-20 Metallurgisches schmelz- und behandlungsaggregat
ES09006813T ES2357684T3 (es) 2009-05-20 2009-05-20 Equipo metalúrgico de fusión y tratamiento.
PL09006813T PL2253916T3 (pl) 2009-05-20 2009-05-20 Agregat metalurgiczny do wytapiania i obróbki
PCT/EP2010/002467 WO2010133283A1 (fr) 2009-05-20 2010-04-22 Unité métallurgique de fusion et de manipulation
AU2010251491A AU2010251491B2 (en) 2009-05-20 2010-04-22 Metallurgical melting and treatment unit
KR1020117026026A KR101322572B1 (ko) 2009-05-20 2010-04-22 야금 용융 및 공정 유닛
CA2760352A CA2760352C (fr) 2009-05-20 2010-04-22 Unite de fusion et de manipulation metallurgique
BRPI1011059A BRPI1011059A2 (pt) 2009-05-20 2010-04-22 unidade metalúrgica de fusão e tratamento
PE2011001970A PE20121144A1 (es) 2009-05-20 2010-04-22 Equipo metalurgico de fusion y procesamiento
CN201080022275.5A CN102428335B (zh) 2009-05-20 2010-04-22 冶金的熔炼和处理总成
JP2012511161A JP5421455B2 (ja) 2009-05-20 2010-04-22 金属学的熔融及び処理ユニット
CL2011002867A CL2011002867A1 (es) 2009-05-20 2011-11-14 Equipo metalurgico de fusion y tratamiento, con forma de cilindro con un eje longitudinal, una carcasa de metal exterior, un revestimiento refractario interior, toberas dispuestas longitudinalmente para introducir un gas de tratamiento en el fluido de metal y dispositivo de enjuague gaseoso para introducir un gas.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09006813A EP2253916B1 (fr) 2009-05-20 2009-05-20 Agrégat de fusion et de traitement métallurgique

Publications (2)

Publication Number Publication Date
EP2253916A1 true EP2253916A1 (fr) 2010-11-24
EP2253916B1 EP2253916B1 (fr) 2011-01-19

Family

ID=40886113

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09006813A Active EP2253916B1 (fr) 2009-05-20 2009-05-20 Agrégat de fusion et de traitement métallurgique

Country Status (14)

Country Link
EP (1) EP2253916B1 (fr)
JP (1) JP5421455B2 (fr)
KR (1) KR101322572B1 (fr)
CN (1) CN102428335B (fr)
AT (1) ATE496267T1 (fr)
AU (1) AU2010251491B2 (fr)
BR (1) BRPI1011059A2 (fr)
CA (1) CA2760352C (fr)
CL (1) CL2011002867A1 (fr)
DE (1) DE502009000332D1 (fr)
ES (1) ES2357684T3 (fr)
PE (1) PE20121144A1 (fr)
PL (1) PL2253916T3 (fr)
WO (1) WO2010133283A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CL2013001568U1 (es) * 2013-05-31 2013-12-13 Shandong Fargyuan Non Ferrous Science And Technology Ltd Company Un horno para la fundicion de cobre para soplado inferior con oxigeno enriquecido, comprende un cuerpo de horno con camara y tabique interior, al menos una entrada de alimentacion, una salida de humo, una salida de mata, una salida de escoria, al menos un orificio lateral para pistolas pulverizadoras, al menos un orificio inferior para lanzas, al menos una lanza para oxigeno y al menos una pistola pulverizadora.
EP2927331B1 (fr) 2014-04-03 2017-01-04 Refractory Intellectual Property GmbH & Co. KG Récipient destiné à recevoir une fonte métallique
EP3450575B1 (fr) 2017-09-01 2020-02-26 Refractory Intellectual Property GmbH & Co. KG Procédé permettant de détecter une usure prédéterminée d'un garnissage réfractaire d'un récipient métallurgique et garnissage réfractaire correspondant

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2432996A (en) * 1945-10-01 1947-12-23 Kennecott Copper Corp Apparatus for punching tuyeres of copper converters and the like
DE2521830A1 (de) * 1975-05-16 1976-11-25 Kloeckner Humboldt Deutz Ag Verfahren und vorrichtung zur thermischen raffination von stark verunreinigtem kupfer in schmelzfluessiger phase

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2696979A (en) * 1951-04-16 1954-12-14 Kennecott Copper Corp Automatic tuyere punching apparatus
KR100402016B1 (ko) * 1999-11-25 2003-10-17 주식회사 포스코 막힘방지 기능을 갖는 용광로의 폐스컴 취입랜스
ES2279232T3 (es) * 2003-08-23 2007-08-16 REFRACTORY INTELLECTUAL PROPERTY GMBH & CO. KG Procedimiento para la produccion pirometalurgica de cobre en un convertidor.
US7371342B2 (en) 2004-05-06 2008-05-13 Corporation Nacional Del Cobre De Chile Method for unlocking nozzles of reactors
CN101344357A (zh) * 2008-08-25 2009-01-14 中国瑞林工程技术有限公司 回转炉及其处理杂铜或块状粗铜工艺

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2432996A (en) * 1945-10-01 1947-12-23 Kennecott Copper Corp Apparatus for punching tuyeres of copper converters and the like
DE2521830A1 (de) * 1975-05-16 1976-11-25 Kloeckner Humboldt Deutz Ag Verfahren und vorrichtung zur thermischen raffination von stark verunreinigtem kupfer in schmelzfluessiger phase

Also Published As

Publication number Publication date
PE20121144A1 (es) 2012-08-27
ES2357684T3 (es) 2011-04-28
AU2010251491B2 (en) 2013-01-31
DE502009000332D1 (de) 2011-03-03
CL2011002867A1 (es) 2012-04-27
BRPI1011059A2 (pt) 2016-08-09
ATE496267T1 (de) 2011-02-15
JP2012527595A (ja) 2012-11-08
EP2253916B1 (fr) 2011-01-19
CA2760352C (fr) 2014-02-11
CN102428335B (zh) 2014-05-14
AU2010251491A1 (en) 2011-11-17
PL2253916T3 (pl) 2011-05-31
JP5421455B2 (ja) 2014-02-19
CA2760352A1 (fr) 2010-11-25
KR101322572B1 (ko) 2013-10-28
WO2010133283A1 (fr) 2010-11-25
CN102428335A (zh) 2012-04-25
KR20120024577A (ko) 2012-03-14

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