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WO2014006990A1 - Récipient pour métal fondu - Google Patents

Récipient pour métal fondu Download PDF

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Publication number
WO2014006990A1
WO2014006990A1 PCT/JP2013/063921 JP2013063921W WO2014006990A1 WO 2014006990 A1 WO2014006990 A1 WO 2014006990A1 JP 2013063921 W JP2013063921 W JP 2013063921W WO 2014006990 A1 WO2014006990 A1 WO 2014006990A1
Authority
WO
WIPO (PCT)
Prior art keywords
molten metal
dry material
segment member
lining
hollow structure
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.)
Ceased
Application number
PCT/JP2013/063921
Other languages
English (en)
Japanese (ja)
Inventor
一磨 西内
寿治 木下
伊藤　貴志
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.)
NGK Insulators Ltd
NGK Adrec Co Ltd
Original Assignee
NGK Insulators Ltd
NGK Adrec 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 NGK Insulators Ltd, NGK Adrec Co Ltd filed Critical NGK Insulators Ltd
Priority to JP2013540142A priority Critical patent/JP5764829B2/ja
Publication of WO2014006990A1 publication Critical patent/WO2014006990A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • F27D1/0003—Linings or walls
    • F27D1/0006—Linings or walls formed from bricks or layers with a particular composition or specific characteristics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/02—Linings

Definitions

  • the present invention mainly relates to a molten metal container suitable for conveying a molten metal.
  • Patent Document 1 a castable refractory poured into the inner surface of a heat insulating material has been widely used (for example, Patent Document 1).
  • the weight of the castable refractory is not preferable because it is required to reduce the weight of the container from the viewpoint of transport and handling.
  • An object of the present invention is to provide a molten metal container that solves the above-described problems, realizes weight reduction of the container, and can maintain heat retention even when the lining member is damaged.
  • the molten metal container of the present invention made to solve the above problems is a molten metal container in which a hollow segment member is lined on the inner surface of the container, and a dry powder material is provided on the back surface of the hollow segment member.
  • dry material means a refractory powder that can be melted by receiving molten metal
  • dry material lining means filling the refractory powder while hitting it. This means that a fireproof layer is formed.
  • the segment member having a hollow structure is constituted by a wall surface having a thickness of 1.5 mm or more.
  • the difference in thermal expansion coefficient between the segment member and the dry material is 4 ⁇ 10 ⁇ 6 or less.
  • the molten metal container according to the present invention achieves a lighter weight than a lining structure of castable refractories by lining a segment member having a hollow structure on the inner surface of the container. Furthermore, by lining a powder dry material on the back of the hollow segment member, the dry material is lined even if the lining structure made of the hollow segment member is damaged. Since the molten metal can be received and sintered in the layer, the phenomenon that the molten metal reaches the iron skin constituting the outermost layer of the container can be avoided.
  • the lining thickness of the hollow segment member is secured to 13 mm or more,
  • the molten metal container of this embodiment is a molten metal conveyance container used for conveying a molten metal.
  • the molten metal transport container 1 of this embodiment includes a steel iron skin 2, a heat insulating material 3 lined on the inner surface of the iron skin 2, and a powder lined on the inner surface of the heat insulating material.
  • the dry material 4 and the hollow structure segment member 5 lined on the inner surface side of the dry material 4, and the heat storage material 6 is further arranged inside the hollow structure segment member 5.
  • a normal castable 7 can be further lined inside the segment member 5 having a hollow structure.
  • the segment member 5 having a hollow structure is composed of a plate material having silicon carbide as a main component and a thickness of about 1.5 to 3 mm, and has a space 8 of 5 mm or more inside.
  • a heat storage material 6 is disposed inside the member 5.
  • the + heat storage material 6 (5 mm or more) needs to be secured at least 13 mm or more.
  • the joints between the segment members 5 are bonded with mortar.
  • 90% alumina mortar is used.
  • the powdery dry material 4 is a high alumina refractory (specific gravity after tap filling is about 3; here, tap filling means filling while tapping the powder) or high siliceous refractory. A thing (specific gravity after tap filling is about 2) can be used. From the viewpoint of weight reduction, a dry material of a high siliceous refractory having a small specific gravity is preferable, and from the viewpoint of extending the life, a high alumina refractory is preferable.
  • the molten metal is a normal alumina molten metal
  • a dry material of high siliceous refractory if a dry material of high siliceous refractory is used, the silica (SiO 2 ) of the dry material is reduced to aluminum and becomes silicon (Si) and melts into the molten aluminum.
  • silicon pickup it is not preferable, but in the case of a molten metal containing silicon, it can be suitably used.
  • the powdery dry material 4 is used by packing particles so as to be closely packed, and has various particle size distributions from coarse particles having a maximum particle size of 5 mm to fine powder particles. .
  • the heat insulating material 3 is wound around the inner surface of the iron skin 2, and then a hollow structure segment member 5 is circumferentially assembled at a predetermined height and is carried into a furnace.
  • a powdery dry material is packed between the heat insulating material and the hollow segment member 5 by close-packing, and then the hollow segment member 5 is assembled at a predetermined height around the circumference.
  • the work is carried into the furnace, and subsequently, the operation of packing the powdery dry material between the heat insulating material and the hollow segment member 5 by close packing is repeated.
  • the ratio B / A between the lining thickness (A) of the segment member 5 having a hollow structure and the lining thickness (B) of the dry material 4 is less than 9.0, and the lining of the segment member 5 having a hollow structure is provided.
  • the lining thickness (B) of the dry material 4 is extremely reduced, the molten metal is received by the lining layer of the dry material 4 and baked even if the lining structure composed of the segment members 5 having the hollow structure is damaged.
  • B / A 0.15 or more
  • the hollow segment member 5 is made of one or more materials selected from the group of alumina, silica, aluminum titanate, silicon nitride, cordierite, alumina, zirconia, sialon, and mullite in addition to silicon carbide. You can also. However, from the viewpoint of preventing molten metal from leaking, it is preferable that the difference in coefficient of thermal expansion between the segment member 5 and the dry material 4 is 4 ⁇ 10 ⁇ 6 or less.
  • Table 1 shows the results of examining the lining thickness of the segment member 5 having a hollow structure and the powdery dry material 4 in the lining configuration of FIG.
  • alumina (95%)” and “silica (98%)” mean the composition of the dry material.
  • Comparative Example 1 the lining thickness of the segment member having a hollow structure was not secured to 13 mm or more, and the segment member was deformed when the dry material was packed with the closest packing, so that the construction could not be performed. In Comparative Example 2, the dry material could not be constructed because the dry material was too thin. In Comparative Example 3, when the dry material was packed by the closest packing, the joining between the segment members having the hollow structure disposed therein was loosened.
  • the lining thickness (B) of the dry material is made extremely thin, even if the lining structure composed of the segment members having a hollow structure is damaged, the molten metal is received by the dry material lining layer and sintered.
  • B / A 0.15 or more.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
PCT/JP2013/063921 2012-07-06 2013-05-20 Récipient pour métal fondu Ceased WO2014006990A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2013540142A JP5764829B2 (ja) 2012-07-06 2013-05-20 溶湯容器

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012-152074 2012-07-06
JP2012152074 2012-07-06

Publications (1)

Publication Number Publication Date
WO2014006990A1 true WO2014006990A1 (fr) 2014-01-09

Family

ID=49881751

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2013/063921 Ceased WO2014006990A1 (fr) 2012-07-06 2013-05-20 Récipient pour métal fondu

Country Status (2)

Country Link
JP (1) JP5764829B2 (fr)
WO (1) WO2014006990A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015196171A (ja) * 2014-03-31 2015-11-09 エヌジーケイ・アドレック株式会社 容器。
CN107552773A (zh) * 2017-10-31 2018-01-09 攀钢集团攀枝花钢铁研究院有限公司 钢包砌筑结构和钢包空心砖

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06213572A (ja) * 1993-01-12 1994-08-02 Arishiumu:Kk るつぼ型誘導炉
JP2004050256A (ja) * 2002-07-22 2004-02-19 Daido Steel Co Ltd 断熱性を高めた取鍋
JP2009233744A (ja) * 2008-03-05 2009-10-15 National Institute Of Advanced Industrial & Technology 物体を収容することが可能な容器
JP2012000650A (ja) * 2010-06-17 2012-01-05 National Institute Of Advanced Industrial Science & Technology 容器

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06213572A (ja) * 1993-01-12 1994-08-02 Arishiumu:Kk るつぼ型誘導炉
JP2004050256A (ja) * 2002-07-22 2004-02-19 Daido Steel Co Ltd 断熱性を高めた取鍋
JP2009233744A (ja) * 2008-03-05 2009-10-15 National Institute Of Advanced Industrial & Technology 物体を収容することが可能な容器
JP2012000650A (ja) * 2010-06-17 2012-01-05 National Institute Of Advanced Industrial Science & Technology 容器

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015196171A (ja) * 2014-03-31 2015-11-09 エヌジーケイ・アドレック株式会社 容器。
CN107552773A (zh) * 2017-10-31 2018-01-09 攀钢集团攀枝花钢铁研究院有限公司 钢包砌筑结构和钢包空心砖

Also Published As

Publication number Publication date
JPWO2014006990A1 (ja) 2016-06-02
JP5764829B2 (ja) 2015-08-19

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