WO2009006775A1 - Bain de fusion agité, appareil d'agitation en continu et procédé de montage de l'appareil - Google Patents

Bain de fusion agité, appareil d'agitation en continu et procédé de montage de l'appareil Download PDF

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Publication number
WO2009006775A1
WO2009006775A1 PCT/CN2007/070683 CN2007070683W WO2009006775A1 WO 2009006775 A1 WO2009006775 A1 WO 2009006775A1 CN 2007070683 W CN2007070683 W CN 2007070683W WO 2009006775 A1 WO2009006775 A1 WO 2009006775A1
Authority
WO
WIPO (PCT)
Prior art keywords
bottom plate
cell body
stirring
furnace
line
Prior art date
Application number
PCT/CN2007/070683
Other languages
English (en)
Chinese (zh)
Inventor
Zhaolian Wang
Hongli Jia
Fengliang Liu
Hongbin Zhang
Original Assignee
Shandong Huate Magnet Technology Co., Ltd
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 Shandong Huate Magnet Technology Co., Ltd filed Critical Shandong Huate Magnet Technology Co., Ltd
Publication of WO2009006775A1 publication Critical patent/WO2009006775A1/fr

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Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/45—Magnetic mixers; Mixers with magnetically driven stirrers
    • B01F33/451—Magnetic mixers; Mixers with magnetically driven stirrers wherein the mixture is directly exposed to an electromagnetic field without use of a stirrer, e.g. for material comprising ferromagnetic particles or for molten metal
    • 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
    • C22B21/00—Obtaining aluminium
    • C22B21/06—Obtaining aluminium refining
    • C22B21/066—Treatment of circulating aluminium, e.g. by filtration
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/02—Making non-ferrous alloys by melting
    • 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
    • F27B3/04—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces of multiple-hearth type; of multiple-chamber type; Combinations of hearth-type furnaces
    • 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
    • F27D27/00—Stirring devices for molten material
    • 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
    • F27D3/14—Charging or discharging liquid or molten material
    • F27D3/145—Runners therefor
    • 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
    • C22B9/003—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals by induction
    • 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
    • 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
    • C22B9/10—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals with refining or fluxing agents; Use of materials therefor, e.g. slagging or scorifying agents
    • C22B9/103—Methods of introduction of solid or liquid refining or fluxing agents
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Definitions

  • the invention relates to a stirring molten pool, an on-line stirring device and a setting method thereof, which are suitable for stirring a molten metal in a non-contact manner in non-ferrous metal smelting. Background technique
  • the non-contact permanent magnet stirring device In the process of non-ferrous metal smelting, it is necessary to stir the molten metal.
  • the non-contact permanent magnet stirring device is often used.
  • the existing stirring device generally installs the agitator in the melting furnace, the holding furnace, the alloy furnace, the tilting furnace, etc. Working under the bottom of the furnace or installed outside the furnace body of each of the above furnaces for non-contact agitation, such as the super permanent magnet cyclone stirrer disclosed in CN1821695A and the circulating permanent magnet stirring disclosed in CN1920073A Device.
  • the circulating permanent magnet agitator is installed between the outside of the furnace and the launder which communicates with the inner cavity of the furnace, so it is suitable for the technical transformation of the furnace which has been built but not used for a long time, for those who use The old furnace with a long time is not suitable, because it is necessary to add a flow hole on the furnace body during the transformation, which will cause damage to other parts of the old furnace during the process of adding the flow hole.
  • the stirring mode flow tank is easy to slag, and the slag needs to be cleaned regularly, so that less is used. Summary of the invention
  • Another object of the present invention is to provide a method of setting an in-line stirring device.
  • the present invention provides a stirring molten pool, which includes heat preservation
  • the bottom of the pool body is provided with a bottom plate fixed to the pool body and made of a non-magnetic material, and the side of the pool body is provided with a melt inlet communicating with the inner cavity of the pool body. And melt outlet.
  • the invention also provides an in-line stirring device, comprising: a melting furnace, wherein the melting furnace is connected with an in-line flow channel communicating with the inner cavity of the furnace, and a stirring molten pool is arranged on the online flow channel, the stirring
  • the molten pool has an insulated pool body, and the side of the pool body is provided with a melt inlet and a melt outlet, and the pool body communicates with the online flow tank through the melt inlet and the melt outlet,
  • the outer bottom surface of the pool body is provided with a bottom plate fixed to the pool body and made of a non-magnetic material, and a permanent magnet agitator is disposed below the bottom plate of the stirring molten pool.
  • the invention further provides a method for setting an in-line stirring device, the setting method comprising the following steps A: disposing a stirring molten pool between the melting furnace and the deaerator, the side of the stirring molten pool having a molten metal inlet and a molten metal Export;
  • Step B setting a front flow channel of the online flow channel, the front flow channel is in communication with the furnace, and is connected to the stirring molten pool through the melt inlet;
  • Step C setting a back flow trough of the online flow trough, the rear flow trough is in communication with the deaerator, and is connected to the agitation molten pool through the melt outlet;
  • Step D Install a permanent magnet agitator below the stirred bath.
  • the principle of secondary agitation of the melt in the agitating bath is as follows:
  • the permanent magnet stirrer uses a permanent magnetic system composed of a high-performance neodymium-iron-boron permanent magnet and a yoke and a secondary yoke made of a magnetically permeable material, the permanent The magnetic system is placed in the non-magnetic permanent magnet cover, and the magnetic field strength is strong. Under the driving of the frequency modulation motor controlled by the programmable controller according to the operating program, the forward and reverse directions are alternately rotated to generate a rotating magnetic field.
  • the magnetic lines pass through the bottom plate and the bottom of the pool to enter the inner cavity of the pool, so that the molten liquid in the inner cavity of the pool is rotated and tumbling to achieve secondary agitation of the molten metal.
  • the purpose of using the non-magnetic material to make the bottom plate is to prevent the bottom plate from short-circuiting the N-pole and S-pole in the permanent magnetic system during the operation of the permanent magnet stirrer, so as to ensure the normal operation of the permanent magnet stirrer.
  • the eddy current generated by the rotating magnetic field on the bottom plate will cause the temperature of the bottom plate to be higher than 100 ° C, which affects the use of the permanent magnetic system.
  • the bottom plate is spaced apart by a bottom plate cooling hole, which is to reduce the eddy current generated by the rotating magnetic field on the bottom plate and reduce the temperature of the bottom plate.
  • the permanent magnetic system of the permanent magnet stirrer can be operated below 50 °C by using simple air cooling system and heat insulation measures on the permanent magnet stirrer. In the environment, the service life is long and the failure rate is low;
  • An energy-saving and environmentally-friendly online permanent magnet stirrer is installed under the bottom of the molten pool.
  • the molten metal in the molten pool is stirred by the alternating positive and negative stirring mode and the programmable frequency control of the frequency modulation, which is energy-saving, pollution-free and continuous. jobs.
  • Figure 1 is a schematic structural view of an in-line stirring device of the present invention
  • FIG. 2 is a schematic structural view of a stirring molten pool of the present invention
  • Figure 3 is a schematic view showing the structure of the bottom of the agitating molten pool of the present invention.
  • Figure 4 is a cross-sectional view taken along line A - A of Figure 3;
  • Figure 5 is a schematic structural view of a permanent magnet agitator
  • Figure 6 is a plan view of Figure 5.
  • the in-line stirring device comprises a furnace 1 , the furnace 1 is connected with an in-line flow cell 2 communicating with the inner cavity of the furnace 1 , and the other end of the online flow channel 2 is provided with a degassing device 3 . (or other means), a stirring bath 4 is provided on the in-line chute 2 between the furnace 1 and the deaerator 3 (or other means).
  • the agitating bath 4 has a heat-insulating, cylindrical shape or other suitable shape
  • the pool body has a casing 41, and the inner and lower portions of the casing 41 are fixedly connected with an insulation layer. 42.
  • the upper port of the pool body is sealed with a pool cover 43 made of a heat insulating material and can be removed to improve the heat preservation effect of the stirring molten pool.
  • a discharge port 44 with an on-off valve is disposed at a side of the pool body and at a bottom portion of the chamber body cavity. When the furnace maintenance is required, the melt remaining in the body cavity of the pool can be discharged in time to prevent solidification.
  • the pool is in the body cavity.
  • a melt inlet 45 and a melt outlet 46 communicating with the inner cavity of the cell body are respectively disposed on the side of the cell body, and the melt inlet 1, the in-line flow cell 2, and the molten metal inlet 46 can be made through the melt inlet 45 and the melt outlet 46.
  • the agitating bath 4 is connected to each other; specifically, the pre-flow cell 21 of the in-line cell 2 is in communication with the furnace 1 and communicates with the agitating bath 4 through the melt inlet 45; the back channel 22 of the in-line cell 2 passes
  • the melt outlet 46 communicates with the agitating bath 4 and communicates with the degassing device 3 or other devices.
  • a bottom plate 47 fixed to the bottom surface of the cell body and made of a non-magnetic material is provided on the outer bottom surface of the cell body. In the embodiment, the bottom plate 47 is disposed at the center of the bottom of the heat insulating layer 42 and supports the heat insulating layer. 42.
  • a plurality of bottom plate cooling holes 471 are spaced apart from each other on the bottom plate 47.
  • each of the bottom plate cooling holes 471 is strip-shaped, and the two ends thereof are curved, preferably each The upper port of the bottom plate cooling hole 471 is sealed with a hole cover 472 which is connected to the bottom plate 47 and made of a non-magnetic material.
  • the thickness of the hole cover 472 is thinner than that of the bottom plate 47, and the periphery of the hole cover 472 is The bottom plate cooling hole 471 is flat on the upper surface.
  • a permanent magnet agitator 5 is disposed below the bottom plate 47 of the agitating bath.
  • the permanent magnet agitator 5 includes a frame 51.
  • the center shaft 52 extends through the frame 51.
  • the upper end of the center shaft 52 is fixed to the permanent yoke 53 and the yoke 54 by a plurality of permanent magnets 55.
  • These permanent magnets 55 are attached. Uniformly spaced in a ray-like manner, and the opposite ends of the adjacent two permanent magnets 55 have opposite polarities, and each of the permanent magnets 55 is a neodymium-iron-boron permanent magnet, and the neodymium-iron-boron permanent magnets are fixed to the frame 51.
  • the non-magnetic permanent magnet housing 56 is in the inner cavity.
  • the non-magnetic permanent magnet cover 56 is provided with a temperature sensor 57 on its side, a non-metallic composite heat insulation layer 58 on the top surface, and a cooling fan 59 on the non-magnetic permanent magnet cover 56.
  • the lower end of the center shaft 52 is fixed with a large pulley 60, and the large pulley 60
  • the transmission belt 61 is connected to the small pulley 62, and the small pulley 62 is fixedly connected to the rotating shaft of the frequency modulation motor 63.
  • the frequency modulation motor 63 is controlled by the programmable controller in the control cabinet to realize the alternate forward rotation and the reverse Turning, and through the small pulley 62, the transmission belt 61, the large pulley 60, the central shaft 52, the plurality of permanent magnets 55 are synchronously rotated forward and reversely to generate a rotating magnetic field, and the magnetic field lines of the rotating magnetic field pass through the bottom plate 47 and the thermal insulation layer. 42 enter the cavity of the pool, and the melt in the cavity of the pool is rotated and tumbling to stir the melt.
  • the agitating molten pool 4 and the energy-saving and environmentally-friendly permanent magnet agitator 5 installed under the bottom of the molten pool 4 are installed in the in-line flow tank 2, so that it is not required to damage the original furnace structure, and the investment is small, and the structure is simple.
  • the molten metal flows into the agitating bath 4 from the in-line chute 2 and the melt inlet, and is stirred once, and the melt after the second agitation passes through the in-line chute and the melt.
  • the outlet flows into the degassing device for degassing.
  • a plurality of bottom plate cooling holes 471 are added, and in the case of a high speed of the inductor, the molten pool bottom plate caused by the rotating magnetic eddy current of the inductor is greatly reduced. 471 temperature rise phenomenon, so that the bottom surface temperature of the molten pool is not more than 100 °C, the simple air cooling system and insulation measures can be used to achieve the stirrer temperature below 50 °C.
  • the permanent magnetic sensor adopts the method of alternating positive and negative rotation and the programmable frequency modulation and speed control method to uniformly stir the molten metal in the stirring molten pool 4.
  • the invention also relates to a method for setting an in-line stirring device, comprising the following steps: Step A: a stirring molten pool 4 is arranged between the melting furnace 1 and the deaerator device 3, and the side of the stirring molten pool 4 has a molten metal inlet 45 And the melt outlet 46;
  • Step B setting a front flow channel 21 of the in-line flow cell 2, the front flow channel 21 is in communication with the furnace 1, and is connected to the stirring molten pool 4 through the melt inlet 45;
  • Step C setting a rear flow channel 22 of the in-line flow cell 2, the rear flow channel 22 is in communication with the deaerator 3, and is connected to the agitation bath 4 through the melt outlet 46;
  • Step D Install a permanent magnet agitator 5 below the agitating bath 4.
  • the step A further comprises the steps of: providing a pre-processed and non-magnetic
  • the outer casing 41 of the bottom plate 47 made of a material is further filled with an insulating layer 42 fixed to the inner wall and the lower portion of the outer casing 41.
  • the bottom plate 47 is spaced apart from the bottom plate 47, and the upper port of each of the bottom plate cooling holes 471 is sealed with a hole cover 472 which is connected to the bottom plate 47 and made of a non-magnetic material.
  • the thickness of the hole cover 472 is smaller than the thickness of the bottom plate 47.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

L'invention concerne un bain de fusion agité, un appareil d'agitation en continu et le procédé de montage de l'appareil. L'appareil d'agitation en continu comprend un four de réduction (1) relié à une chute en continu (2). Ladite chute est reliée à la cavité interne du four. Le bain de fusion agité possédant un corps de bain calorifuge est installé sur la chute en continu (2). Le corps de bain possède une admission de métal fondu (45) et une sortie de métal fondu (46) sur sa paroi latérale, et il est relié à la chute en continu (2) par le biais de l'admission de métal fondu (45) et de la sortie de métal fondu (46). Une plaque inférieure non métallique (47) est montée sur la coque inférieure du corps de bain. Un agitateur magnétique (5) est monté sous la plaque (47) du bain de fusion agité.
PCT/CN2007/070683 2007-07-10 2007-09-13 Bain de fusion agité, appareil d'agitation en continu et procédé de montage de l'appareil WO2009006775A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200710015137.4 2007-07-10
CNB2007100151374A CN100516253C (zh) 2007-07-10 2007-07-10 一种搅拌熔池及其在线设置方法

Publications (1)

Publication Number Publication Date
WO2009006775A1 true WO2009006775A1 (fr) 2009-01-15

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PCT/CN2007/070683 WO2009006775A1 (fr) 2007-07-10 2007-09-13 Bain de fusion agité, appareil d'agitation en continu et procédé de montage de l'appareil

Country Status (2)

Country Link
CN (1) CN100516253C (fr)
WO (1) WO2009006775A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010046633A1 (fr) * 2008-10-25 2010-04-29 Solios Thermal Ltd. Appareil pour induire un flux dans une matière en fusion
CN112553474A (zh) * 2020-11-04 2021-03-26 芜湖楚江合金铜材有限公司 一种熔炼隔仓用氮气混合搅拌装置
CN116043044A (zh) * 2022-12-01 2023-05-02 徐应学 一种高强铝合金精密铸造板的制备工艺

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2488804A (en) * 2011-03-09 2012-09-12 Solios Thermal Ltd Inducing stirring and extraction in a molten material
JP5819270B2 (ja) * 2012-08-08 2015-11-18 高橋 謙三 永久磁石式筒型溶湯攪拌装置及び永久磁石式汲み出しポンプ付溶解炉
CN102912149B (zh) * 2012-10-25 2014-09-10 苏州博能炉窑科技有限公司 一种除气装置的扰流结构
WO2018096366A1 (fr) * 2016-11-26 2018-05-31 Altek Europe Limited Perfectionnements apportés ou se rapportant à la fusion et/ou à l'agitation de métaux fondus

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JPS5929975A (ja) * 1982-08-10 1984-02-17 神鋼電機株式会社 電磁撹拌用の炉
JPH07301491A (ja) * 1994-05-02 1995-11-14 Shinko Electric Co Ltd アルミ保温炉
CN2802404Y (zh) * 2005-07-01 2006-08-02 贵阳铝镁设计研究院 搅拌式铝混合炉

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GB1268735A (en) * 1969-11-29 1972-03-29 Aeg Elotherm Gmbh A travelling field inductor
JPS5929975A (ja) * 1982-08-10 1984-02-17 神鋼電機株式会社 電磁撹拌用の炉
JPH07301491A (ja) * 1994-05-02 1995-11-14 Shinko Electric Co Ltd アルミ保温炉
CN2802404Y (zh) * 2005-07-01 2006-08-02 贵阳铝镁设计研究院 搅拌式铝混合炉

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LI J. ET AL.: "Realization of the mixing of alloy aluminum liquid with electromagnetic induction", AUTOMATION AND INSTRUMENTATION, vol. 15, no. 6, 2000, pages 67 *
ZHANG Y.: "Effects of applying rlrctromagnetic stir technique in large scale melting aluminum blend furnace", ENERGY SAVING OF NON-FERROUS METALLUGY, no. 3, June 2006 (2006-06-01), pages 13 - 14 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010046633A1 (fr) * 2008-10-25 2010-04-29 Solios Thermal Ltd. Appareil pour induire un flux dans une matière en fusion
US8623271B2 (en) 2008-10-25 2014-01-07 Solios Thermal Limited Apparatus for inducing flow in a molten material
CN112553474A (zh) * 2020-11-04 2021-03-26 芜湖楚江合金铜材有限公司 一种熔炼隔仓用氮气混合搅拌装置
CN116043044A (zh) * 2022-12-01 2023-05-02 徐应学 一种高强铝合金精密铸造板的制备工艺

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Publication number Publication date
CN101082081A (zh) 2007-12-05
CN100516253C (zh) 2009-07-22

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