WO2007120026A1 - Installation de traitement de matières premières contenant du plomb et du zinc - Google Patents

Installation de traitement de matières premières contenant du plomb et du zinc Download PDF

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Publication number
WO2007120026A1
WO2007120026A1 PCT/KZ2006/000015 KZ2006000015W WO2007120026A1 WO 2007120026 A1 WO2007120026 A1 WO 2007120026A1 KZ 2006000015 W KZ2006000015 W KZ 2006000015W WO 2007120026 A1 WO2007120026 A1 WO 2007120026A1
Authority
WO
WIPO (PCT)
Prior art keywords
gas cooler
melting chamber
lead
cooler shaft
shaft
Prior art date
Application number
PCT/KZ2006/000015
Other languages
English (en)
Russian (ru)
Inventor
Viktor Alexandrovich Shumskiy
Nikolay Nikolayevich Ushakov
Igor Vladimirovich Starsev
Ivan Petrovich Polyakov
Boris Alexandrovich Ragulin
Valentina Vasilyevna Chalenko
Original Assignee
State Affiliate 'the Eastern Mining And Metallurgical Research Institut For Non - Ferrous Metals' Republic State Affiliate 'national Enterprise Of Complex Processing For Mineral And Raw Material Of Th
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 State Affiliate 'the Eastern Mining And Metallurgical Research Institut For Non - Ferrous Metals' Republic State Affiliate 'national Enterprise Of Complex Processing For Mineral And Raw Material Of Th filed Critical State Affiliate 'the Eastern Mining And Metallurgical Research Institut For Non - Ferrous Metals' Republic State Affiliate 'national Enterprise Of Complex Processing For Mineral And Raw Material Of Th
Priority to CN2006800061564A priority Critical patent/CN101317067B/zh
Priority to BRPI0615489-1A priority patent/BRPI0615489B1/pt
Priority to CL200702156A priority patent/CL2007002156A1/es
Publication of WO2007120026A1 publication Critical patent/WO2007120026A1/fr

Links

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
    • F27B19/00—Combinations of furnaces of kinds not covered by a single preceding main group
    • F27B19/02—Combinations of furnaces of kinds not covered by a single preceding main group combined in one structure
    • 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
    • C22B13/00—Obtaining lead
    • C22B13/02—Obtaining lead by dry processes
    • 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
    • C22B19/00—Obtaining zinc or zinc oxide
    • C22B19/20—Obtaining zinc otherwise than by distilling
    • 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
    • C22B4/00—Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys
    • C22B4/08—Apparatus
    • 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
    • F27B19/00—Combinations of furnaces of kinds not covered by a single preceding main group
    • F27B19/04—Combinations of furnaces of kinds not covered by a single preceding main group arranged for associated working

Definitions

  • the invention relates to non-ferrous metallurgy, mainly to devices for processing pulverized lead- and zinc-containing raw materials, in which copper and noble metals may be present.
  • a known unit for processing pulverized lead-zinc raw materials including a vertical melting chamber of rectangular cross section with a burner device, a gas cooler, a vertical cooled partition separating the melting chamber from the gas cooler, an electric furnace separated from the melting chamber cooled by a vertical partition, a coffered belt, devices for releasing products swimming trunks.
  • the ratio of the difference in the levels of the lower edges of the partitions to the distance from the arch of the melting chamber to the lower edge of the partition separating the electric furnace from the melting chamber is 0.30
  • the ratio of the distance from the lower edge of this partition to the bottom to the difference in the levels of the lower edges of the partitions is 1.23 .
  • the disadvantage of this unit is the low direct extraction of lead into the crude metal, due to the high dust removal of the mixture from the melting chamber with reaction gases at the indicated ratios of the structural elements of the unit.
  • the increased content of circulating sulfate dusts in the charge leads to a decrease in the temperature of the flare melt and a related decrease in the rate and degree of reduction of lead oxide in the layer of the carbon reducing agent.
  • the closest in technical essence to the invention is an aggregate for processing pulverized lead- and zinc-containing raw materials, including a rectangular rectangular melting chamber with a burner device, a gas cooler, a partition separating the melting chamber from the gas cooler, an electric furnace separated by a partition from the melting chamber, a coffered belt, devices for the release of smelting products, bottom.
  • the ratio of the difference in the levels of the lower edges of the partitions to the distance from the arch of the melting chamber to the lower edge of the partition separating the electric furnace from the melting chamber is 0.15- 0.29
  • the ratio of the distance from the lower edge of this partition to the bottom to the level difference of the lower edges of the partitions is 1.25-2.10 (patent of the Republic of Ukraine ⁇ 8705, IPC F27B 17/00, C22B 13/02, publ. April 15, 2005, bull. JNa 4).
  • the disadvantage of this unit is a simultaneous decrease in the unit’s specific productivity and direct extraction of lead into the crude metal due to the presence of a stagnant slag melt zone at the outer end wall of the gas cooler shaft, opposite the partition separating it from the melting chamber. Natural cooling of the slag melt in this area of the unit causes the formation of accretion and a decrease in the intensity of circulation of the slag melt between the electric furnace, the melting chamber and the gas cooler shaft. This reduces the heat supply from the electric furnace to the carbonaceous reducing agent layer and slows down the process of carbon thermal reduction of the flare melt.
  • An object of the present invention is to simultaneously increase direct extraction of lead into the raw metal and the unit specific productivity by inhibiting the formation of nastily on the walls of the lower region of the gas cooler shaft, accelerating circulation and increasing the heat content of the slag melt stream, providing additional heat supply to the carbon reducing agent layer and corresponding acceleration the recovery process of the flare melt, which is solved by organizing intensive of heat to the molten slag bath under mine gas cooler.
  • the problem is achieved in that in the known unit for processing pulverized lead- and zinc-containing raw materials, including vertical smelting a rectangular chamber with a burner, a gas cooler shaft, a partition with water-cooled copper elements separating the melting chamber from the gas-cooler shaft, an electric furnace separated from the melting chamber by a partition with water-cooled copper elements, a coffered belt,
  • ⁇ is the angle of the tuyeres
  • k is the coefficient of the angle of the tuyeres, equal to 1, 11 - 1, 25
  • ⁇ is the difference in levels of the lower edges of the partitions
  • B is the internal width of the gas cooler shaft.
  • the heat release region moves away from the surface of the slag melt.
  • a higher level of the tuyeres leads to a decrease in the contact of the oxygen-containing gas with the layer of carbon material. This will reduce the heat input to the slag bath under the gas cooler shaft.
  • the heat content and the circulation rate of the slag melt flow between the electric furnace, the melting chamber and the gas cooler shaft will decrease, which will lead to a slowdown in the heat supply to the working region of the carbon reducing agent layer under the burner. Accordingly, the rate of recovery of the flare melt, the direct extraction of lead into the crude metal, and the unit specific productivity will decrease.
  • the heat release region from the afterburning of carbon monoxide in the reaction gases of the melting chamber will move away from the surface of the slag melt.
  • the oxygen-containing gas blown through the tuyeres will not come into contact with the layer of carbonaceous material in the gas cooler shaft for a part of the unit’s operating time after slag discharge. As a result, the total heat input to the slag bath under the gas cooler shaft will decrease.
  • the ratio of which to its internal length is less than 0.25
  • the heat exchange surface of hot gases and slag bath and the twisting effect of the ascending reaction gases are reduced.
  • the heat flux transferred to the volume of the slag melt bath and the degree of dust particle deposition on the walls of the gas cooler shaft are simultaneously reduced. Accordingly, the effect of an additional increase in the heat content of the slag melt corresponding to an acceleration of its circulation in the slag bath, and the effect of reducing the removal of recycled sulfate dust from the aggregate are reduced.
  • blasting through tuyeres does not lead to the maximum possible increase in the effect of increasing the unit specific productivity, as well as direct extraction of lead into the rough metal by increasing the heat supply to the zone the occurrence of reduction reactions with a torch melt and with a melt flow circulating in the slag bath, which would provide acceleration of the reduction of the oxide melt in the layer of the carbon reducing agent.
  • the ratio of which to the internal length of the gas cooler shaft is more than 0.30, the effect of heat transfer from burning gases to the slag melt bath and the effect of swirling the ascending reaction gases, which determines the degree of dust deposition on the walls of the gas cooler shaft, do not increase .
  • the high-temperature region of combustion of carbon monoxide in reaction gases or solid carbon in the carbon layer approaches the walls of the aggregate, noticeably increasing the specific heat load on the coffered belt in this local zone and, thereby, increasing the probability of burnout of the caissons.
  • Figure l shows an aggregate for processing pulverized lead- and zinc-containing raw materials, a General view
  • FIG. 2 and FIG. 3 is a section A-A and BB of the gas cooler shaft shown in FIG. 1, when installing one lance
  • in FIG. 4 is a section BB of the gas cooler shaft shown in FIG. 1, when installing two tuyeres.
  • Example 10 The tests were carried out under conditions similar to Example 2, but with the installation of two tuyeres for supplying oxygen-containing gas, one on each of the opposite side walls of the gas cooler shaft. The lances were installed in one plane of the transverse axial section of the gas cooler shaft at the level of the lower edge of the partition separating the gas cooler shaft from the melting chamber, with a slope towards the bottom at an angle to the horizontal plane, determined by a coefficient k of 1.20.
  • Example 11 The tests were carried out under conditions similar to Example 2, but with the installation of two tuyeres for supplying oxygen-containing gas, one on each of the opposite side walls of the gas cooler shaft. The lances were installed in one plane of the transverse axial section of the gas cooler shaft at the level of the lower edge of the partition separating the gas cooler shaft from the melting chamber, with a slope towards the bottom at an angle to the horizontal plane, determined by a coefficient k of 1.20.
  • Example 11 Example 11
  • Example 14 The tests were carried out under conditions similar to Example 2, and the installation of two tuyeres corresponded to Example 10 with the difference that each of the two of opposite tuyeres was shifted from the transverse axial section of the gas cooler shaft by a distance, the ratio of which to its internal length - ⁇ l / L was 0.27.
  • Example 15 The tests were carried out under conditions similar to Example 2, and the installation
  • Example 16 The tests were carried out under conditions similar to Example 2, and the installation
  • the present invention can further reduce the specific cost of electricity by 6.2-6.8 rel. % and increase the useful life of the unit by 3-5% due to the heating of the slag bath area under the gas cooler shaft, which inhibits the formation of accretions in this area of the unit.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)

Abstract

L'invention relève la métallurgie des métaux non ferreux, et se rapporte précisément à des dispositifs permettant de traiter des matières premières pulvérulentes contenant du plomb et du zinc et renfermant éventuellement aussi du cuivre et des métaux précieux. Le but de l'invention est d'augmenter à la fois l'extraction directe du zinc dans un métal de première fusion et la productivité spécifique de l'installation. A cette fin, l'installation de traitement de matières premières pulvérulentes contenant du plomb et du zinc comprend : une chambre de fusion verticale, dotée d'une section transversale rectangulaire et comportant un dispositif brûleur; une cuve de refroidisseur de gaz; une cloison dotée d'éléments en cuivre à refroidissement à l'eau, qui sépare la chambre de fusion de la cuve de refroidisseur de gaz; un four électrique, séparé de la chambre de fusion par une cloison dotée d'éléments en cuivre à refroidissement à l'eau; une bande à caissons : des dispositifs destinés à évacuer les produits de la fusion; et un fonds. Le rapport entre la différence de niveau entre les bords des cloisons et la distance séparant le plafond de la chambre de fusion du bord inférieur de la cloison qui sépare le four électrique de la chambre de fusion est compris entre 0,15 et 0,29, et le rapport entre la distance séparant le bord inférieur de ladite cloison du fond et la différence de niveau entre les bords inférieurs des cloisons est compris entre 1,25 et 2,10.
PCT/KZ2006/000015 2006-07-24 2006-11-28 Installation de traitement de matières premières contenant du plomb et du zinc WO2007120026A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN2006800061564A CN101317067B (zh) 2006-07-24 2006-11-28 加工粉状含铅和锌的原材料的装置
BRPI0615489-1A BRPI0615489B1 (pt) 2006-07-24 2006-11-28 Unidade de processamento de matérias primas contendo chumbo e zinco em pó
CL200702156A CL2007002156A1 (es) 2006-07-24 2007-07-24 Unidad que procesa materias primas pulverizadas de pb y zn que comprende camara fundidora vertical (a), chimenea de enfriador de gases (b), separadas por pared divisoria con elementos de cobre enfriados por agua (c), horno electrico separado de (a) p

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KZ2006/0853.1 2006-07-24
KZ20060853 2006-07-24

Publications (1)

Publication Number Publication Date
WO2007120026A1 true WO2007120026A1 (fr) 2007-10-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KZ2006/000015 WO2007120026A1 (fr) 2006-07-24 2006-11-28 Installation de traitement de matières premières contenant du plomb et du zinc

Country Status (5)

Country Link
CN (1) CN101317067B (fr)
BR (1) BRPI0615489B1 (fr)
CL (1) CL2007002156A1 (fr)
RU (1) RU2359188C2 (fr)
WO (1) WO2007120026A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2710250C1 (ru) * 2019-07-24 2019-12-25 Федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский технологический университет "МИСиС" Способ безуглеродного селективного извлечения цинка и свинца из пыли электросталеплавильного производства и устройство для его реализации

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2114927C1 (ru) * 1997-05-21 1998-07-10 Открытое акционерное общество Институт "Гинцветмет" Способ пирометаллургической переработки свинецсодержащих материалов и печь для его осуществления
EP0855448A1 (fr) * 1997-01-27 1998-07-29 The BOC Group plc Méthode de conduite d'un four à cuve pour le traitement métallurgique des mélanges zinc-plomb
DE19830520A1 (de) * 1998-07-08 2000-01-13 Metallgesellschaft Ag Verfahren und Reaktor zum Gewinnen mindestens eines Nichteisen-Metalls durch ein direktes, chargenweise betriebenes Schmelzverfahren
JP2002356725A (ja) * 2002-04-10 2002-12-13 Sumitomo Metal Mining Co Ltd Ｚｎ・Ｐｂ製錬用フラッシュ還元炉とその操業方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2368030Y (zh) * 1999-05-12 2000-03-08 本溪钢铁(集团)有限责任公司 耐火材料高温性能模拟仪
CN1994620A (zh) * 2006-10-26 2007-07-11 中南大学 一种泡沫铝或泡沫铝合金的连续铸造的系统及连续铸造工艺

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0855448A1 (fr) * 1997-01-27 1998-07-29 The BOC Group plc Méthode de conduite d'un four à cuve pour le traitement métallurgique des mélanges zinc-plomb
RU2114927C1 (ru) * 1997-05-21 1998-07-10 Открытое акционерное общество Институт "Гинцветмет" Способ пирометаллургической переработки свинецсодержащих материалов и печь для его осуществления
DE19830520A1 (de) * 1998-07-08 2000-01-13 Metallgesellschaft Ag Verfahren und Reaktor zum Gewinnen mindestens eines Nichteisen-Metalls durch ein direktes, chargenweise betriebenes Schmelzverfahren
JP2002356725A (ja) * 2002-04-10 2002-12-13 Sumitomo Metal Mining Co Ltd Ｚｎ・Ｐｂ製錬用フラッシュ還元炉とその操業方法

Also Published As

Publication number Publication date
RU2359188C2 (ru) 2009-06-20
BRPI0615489B1 (pt) 2015-07-21
CN101317067A (zh) 2008-12-03
RU2006145142A (ru) 2008-06-27
CN101317067B (zh) 2012-03-21
CL2007002156A1 (es) 2008-04-18
BRPI0615489A2 (pt) 2011-05-17

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