EP1832363A1 - Metallschmelzenpfanne - Google Patents

Metallschmelzenpfanne Download PDF

Info

Publication number
EP1832363A1
EP1832363A1 EP05793202A EP05793202A EP1832363A1 EP 1832363 A1 EP1832363 A1 EP 1832363A1 EP 05793202 A EP05793202 A EP 05793202A EP 05793202 A EP05793202 A EP 05793202A EP 1832363 A1 EP1832363 A1 EP 1832363A1
Authority
EP
European Patent Office
Prior art keywords
ladle
lining layer
molten metal
opening
innermost surface
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.)
Withdrawn
Application number
EP05793202A
Other languages
English (en)
French (fr)
Other versions
EP1832363A4 (de
Inventor
Kiyohumi Daiki Aluminium Industry Co. Ltd. KAWAI
Katsuyoshi c/o Nippon Crucible Co. Ltd. MUKAI
Toshiyuki c/o Chuo Ceramic Co. Ltd. MATSUMOTO
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.)
Nippon Crucible Co Ltd
Daiki Aluminium Industry Co Ltd
Original Assignee
Nippon Crucible Co Ltd
Daiki Aluminium Industry 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 Nippon Crucible Co Ltd, Daiki Aluminium Industry Co Ltd filed Critical Nippon Crucible Co Ltd
Publication of EP1832363A1 publication Critical patent/EP1832363A1/de
Publication of EP1832363A4 publication Critical patent/EP1832363A4/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • 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
    • B22D41/04—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like tiltable
    • 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
    • B22D41/04—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like tiltable
    • B22D41/05—Tea-pot spout ladles

Definitions

  • the present invention relates to a molten metal ladle.
  • Patent Document 1 discloses an example of such a molten metal ladle.
  • the molten metal ladle 100 disclosed in Patent Document 1 comprises a ladle body 102 having a molten metal discharging tube 101, and a lid 104 covering an opening 103 provided on top of the ladle body 102.
  • the ladle body 102 has a cross-sectional structure wherein an outer covering 105 formed of a steel plate is provided on the outermost side, and a lining layer 108 formed of a heat-insulating member 106 and a refractory member 107 is provided inside the outer covering 105.
  • An object of the present invention is to solve the above problem and provide a molten metal ladle in which scales, slag and the like that adhere to the lining layer can be easily and reliably removed.
  • a molten metal ladle comprising a bottomed tubular ladle body having an opening in the top, wherein the ladle body has an upper ladle portion and a lower ladle portion, the upper ladle portion being connected to the top end of the lower ladle portion, a lining layer being provided inside the upper ladle portion and the lower ladle portion, and the innermost surface of the lining layer in the upper ladle portion being formed as an inclined plane with its opening area becoming smaller from the top end of the lining layer of the lower ladle portion toward the edge of the opening.
  • the inclined plane have a fixed inclination angle from the top end of the lining layer of the lower ladle portion to the edge of the opening as seen in a vertical sectional view.
  • the lining layer be formed of a heat-insulating member and a refractory member.
  • the present invention provides a molten metal ladle in which scales, slag, etc., that adhere to the surface of the lining layer can be easily and reliably removed.
  • Fig. 1(a) is a cross-sectional view of a molten metal ladle according to one embodiment of the present invention
  • Fig. 1 (b) is a cross-sectional view of Fig. 1(a) taken along the line A-A.
  • the molten metal ladle 1 is a ladle from which molten metal is discharged by the application of pressure.
  • the molten metal ladle 1 comprises a ladle body 10, a molten metal discharging tube 30, a pressurizing member 31, a lid 32, and a pair of feet 33,33.
  • the ladle body 10 has a tubular form with a circular shape as seen in a horizontal sectional view, and comprises a lower ladle portion 11 and an upper ladle portion 12.
  • the lower ladle portion 11 is a bottomed cylinder having a constant outer diameter, and its upper end is in contact with the upper ladle portion 12.
  • an opening 13 On top of the upper ladle portion 12, an opening 13 having a diameter smaller than the inside diameter of the bottom surface of the lower ladle portion 11 is formed.
  • the upper ladle portion 12 has a tapered external form, i.e., its horizontal sectional area becomes smaller from the top of the lower ladle portion 11 toward the upper portion. Note that, the lower ladle portion 11 and the upper ladle portion 12 may be formed in a united manner or formed independently and then connected using a connecting member.
  • the cross-sectional structure of the lower ladle portion 11 is such that an outer covering 14 formed of a steel plate is provided on the outside, and a lower portion lining layer 17 formed of a heat-insulating member 15 and a refractory member 16 and having a shape similar to the outer covering 14 is provided along the outer covering 14.
  • the upper ladle portion 12 has the same cross-sectional structure as the same as that of the lower ladle portion 11, wherein an outer covering 14 formed of a steel plate is provided on the outside, and an upper portion lining layer 18 formed of a heat-insulating member 15 and a refractory member 16 and having a shape similar to the outer covering 14 is formed on the inside of the outer covering 14.
  • the innermost surface 18a of the upper portion lining layer 18 is formed as an inclined plane wherein the opening area becomes smaller from the top of the innermost surface 17a of the lower portion lining layer 17 toward the edge of the opening 13.
  • This inclined plane is formed so as to have a fixed inclination angle from the upper end of the innermost surface 17a of the lower portion lining layer 17 toward the edge of the opening 13 in the longitudinal sectional view of Fig. 1.
  • insulating firebricks, ceramic fiber felt, mortar, etc. can be used as materials for the heat-insulating member 15.
  • Refractory bricks, castable refractory, plastic refractory, etc. can be used as materials for the refractory member 16.
  • One end 30a of the molten metal discharging tube 30 is open to the inside of the ladle body 10 in the vicinity of the bottom surface, and the other end 30b is open to the outside of the ladle body 10.
  • the pressurizing member 31 projects obliquely upward from the ladle body 10, and comprises a compressed air inlet 31a.
  • a means for supplying compressed air (such as a compressor), which is not shown in the figure, is connected to the compressed air inlet 31a. Teeming is conducted by applying pressure to the inside of the ladle body 10 using compressed air so that molten metal is discharged from the molten metal discharging tube 30.
  • the inside the ladle body 10 also may be pressurized using a compressed inert gas instead of compressed air.
  • An openable and closable lid 32 is provided on top of the ladle body 10 so as to cover the opening 13 of the ladle body 10.
  • the cross-sectional structure of the lid 32 is such that an outer covering 14 formed of a steel plate is provided on the outermost side, and a lid lining layer 19 comprising a heat-insulating member 15 and a refractory member 16 is provided inside the outer covering 14.
  • a pair of feet 33,33 are provided on the bottom surface of the ladle body 10 in such a manner that one foot 33 is parallel to the other foot 33.
  • a fork pocket 33a into which the fork portion of a forklift can be inserted is formed in each foot 33, so that molten metal ladle 1 can be transported by a forklift.
  • a method for cleaning and removing the scales, slage, etc., that adhere to the upper portion lining layer 18 and the lower portion lining layer 17 of the molten metal ladle 1 of the above-described structure is explained below.
  • the operator of the removal operation opens the lid 32, and checks the adhesion condition of scales, slag, etc., to the upper portion lining layer 18 and the lower portion lining layer 17, etc., from the opening 13 of the upper portion of the ladle body 10.
  • the innermost surface 18a of the upper portion lining layer 18 in the upper ladle portion 12 is formed as an inclined plane wherein the opening area becomes smaller from the top end of the innermost surface 17a of the lower portion lining layer 17 toward the edge of the opening 13, the operator who removes the scales, slag, etc., does not have to check the adhesion condition by inserting his or her head into the opening 13 during the removal operation. This allows the operator to reliably remove scales, slag, etc., from outside the opening 13 in a comfortable position while checking the adhesion/removal condition of all of surfaces 18a, 17a of the upper portion lining layer 18 and the lower portion lining layer 17.
  • the operator can handle a scraper or like removing tool without interference from the edge of the opening 13, and this simplifies the removal operation.
  • the innermost surface 18a of the upper portion lining layer 18 in the upper ladle portion 12 is formed as an inclined plane wherein the opening area decreases from the top end of the innermost surface 17a of the lower portion lining layer 17 toward the edge of the opening 13, when molten metal is placed in the lower ladle portion 11, a space is formed between the surface of the molten metal and the inner surface of the lid 32. This effectively prevents adhesion of the molten metal to the inner surface of the lid 32, even if the molten metal splashes in the ladle body 10 when transporting the molten metal ladle 1 or pouring the molten metal.
  • the innermost surface 18a of the upper portion lining layer 18, which forms an inclined plane has a fixed inclination angle from the top end of the innermost surface 17a of the lower portion lining layer 17 toward the edge of the opening 13 as shown in the cross-sectional view of Fig. 1 (b), adhesion and removal of scales, slag, etc., to or from the innermost surface 18a can be easily checked.
  • the operator can remove the scales, slag, etc., without drastically changing the holding position of a scraper or like removing tool, and therefore the removal operation can be conducted quickly.
  • the upper portion lining layer 18 is provided in such a manner that the innermost surface 18a of the upper portion lining layer 18 forms an inclined plane wherein the opening area decreases from the top end of the innermost surface 17a of the lower portion lining layer 17 toward the edge of the opening 13, it is possible to effectively prevent dropping of the refractory member 16, such as a refractory brick, that forms the upper portion lining layer 18.
  • the refractory member 16 such as a refractory brick
  • the angle ⁇ between the inclined line of the innermost surface 18a of the upper portion lining layer 18 and the line connecting the connecting portion 20 to the edge of the opening 13 be such that the scraper will not be caught by the edge of the opening 13 when the scales, slag, etc., that adhere to the innermost surface 18a are removed using a straight scraper as shown in the cross-sectional view of Fig. 1(b).
  • the inclination angle is preferably, for example, 5° to 30° .
  • the upper ladle portion 12 has a tapered external form, but the external form of the upper ladle portion 12 is not limited as long as the innermost surface 18a of the upper portion lining layer 18 provided inside the upper ladle portion 12 is formed as an inclined plane wherein the opening area decreases from the top end of the lower portion lining layer 17 toward the edge of the opening 13, and the external form may be tubular having a consistent outer diameter in the height direction.
  • a pressurizing-type molten metal ladle is employed as the molten metal ladle 1, wherein teeming is conducted by pressurizing the inside of the ladle body 10 by sending compressed air, etc., therein so as to discharge the molten metal stored in the ladle body 10 to the outside.
  • a tilting molten metal ladle as shown in Fig. 2 by which molten metal can be discharged from the discharging port 51 by tilting the molten metal ladle.
  • the innermost surface 18a of the upper portion lining layer 18 is formed as an inclined plane having a fixed inclination angle from the top end of the innermost surface 17a of the lower portion lining layer 17 to the edge of the opening 13 as shown in the cross-sectional view of Fig. 1(b).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Continuous Casting (AREA)
EP05793202A 2004-12-28 2005-10-14 Metallschmelzenpfanne Withdrawn EP1832363A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004379356A JP3903321B2 (ja) 2004-12-28 2004-12-28 溶融金属取鍋
PCT/JP2005/018925 WO2006070522A1 (ja) 2004-12-28 2005-10-14 溶融金属取鍋

Publications (2)

Publication Number Publication Date
EP1832363A1 true EP1832363A1 (de) 2007-09-12
EP1832363A4 EP1832363A4 (de) 2009-01-07

Family

ID=36614648

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05793202A Withdrawn EP1832363A4 (de) 2004-12-28 2005-10-14 Metallschmelzenpfanne

Country Status (5)

Country Link
US (1) US20090065987A1 (de)
EP (1) EP1832363A4 (de)
JP (1) JP3903321B2 (de)
CN (1) CN101065202A (de)
WO (1) WO2006070522A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105328176A (zh) * 2015-12-03 2016-02-17 重庆志成机械有限公司 一种可旋转调整的吹气装置

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120240831A1 (en) * 2011-03-22 2012-09-27 Guilherme Martins Ferreira System and Process for the Combustion of Solid Fuels
CN103418783A (zh) * 2012-05-18 2013-12-04 无锡蠡湖叶轮制造有限公司 重力铸造定量炉用咀
CN105917186B (zh) * 2014-01-23 2017-11-28 杰富意钢铁株式会社 熔融金属容器的衬里结构体的制造方法及熔融金属容器的衬里结构体
CN104959588B (zh) * 2015-07-24 2017-10-31 新沂市港发商贸有限公司 一种铝合金重力浇铸用带塞浇壶
CN108907166A (zh) * 2018-09-07 2018-11-30 苏州诺瑞达新材料科技有限公司 带防护装置的长距离铝水包
CN112475281A (zh) * 2020-12-24 2021-03-12 天津市航宇嘉瑞科技股份有限公司 一种浇注用保温浇料斗

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4107244A (en) * 1975-06-13 1978-08-15 Nippon Steel Corporation Method and apparatus for repairing damaged surface of refractory lined vessel
JPH0390509A (ja) * 1989-08-23 1991-04-16 Zia Technol Inc 空気圧製鋼容器及び鋼製造方法
JP2001287021A (ja) * 2000-04-07 2001-10-16 Daiki Aluminium Industry Co Ltd 取鍋搬送装置及びそれを設置した取鍋運搬車両
JP2003205361A (ja) * 2002-01-11 2003-07-22 Tamashima Keikinzoku Kogyo Kk 除滓作業機

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1535482A (en) * 1923-10-04 1925-04-28 Fred E Kling Ladle
US3277716A (en) * 1963-11-06 1966-10-11 Koppers Co Inc Hot metal ladle continuous temperature measuring device
IT1075031B (it) * 1975-10-29 1985-04-22 Mannesmann Ag Disposizione di coperchio per siviere o recipienti per trattamenti metallurgici
SU969453A1 (ru) * 1981-06-29 1982-10-30 Восточный научно-исследовательский и проектный институт огнеупорной промышленности Установка дл изготовлени монолитной футеровки металлургических емкостей
JPH06190539A (ja) * 1992-12-22 1994-07-12 Mitsubishi Materials Corp 溶湯金属供給器具
DE19706056C1 (de) * 1997-02-06 1998-05-28 Mannesmann Ag Gefäß für metallurgische Zwecke
DE19736720C1 (de) * 1997-08-19 1999-05-06 Mannesmann Ag Metallurgisches Gefäß

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4107244A (en) * 1975-06-13 1978-08-15 Nippon Steel Corporation Method and apparatus for repairing damaged surface of refractory lined vessel
JPH0390509A (ja) * 1989-08-23 1991-04-16 Zia Technol Inc 空気圧製鋼容器及び鋼製造方法
JP2001287021A (ja) * 2000-04-07 2001-10-16 Daiki Aluminium Industry Co Ltd 取鍋搬送装置及びそれを設置した取鍋運搬車両
JP2003205361A (ja) * 2002-01-11 2003-07-22 Tamashima Keikinzoku Kogyo Kk 除滓作業機

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Week 198335 Thomson Scientific, London, GB; AN 1983-751966 XP002505413 -& SU 969 453 A (E REFRACTORY IND RE) 30 October 1982 (1982-10-30) *
See also references of WO2006070522A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105328176A (zh) * 2015-12-03 2016-02-17 重庆志成机械有限公司 一种可旋转调整的吹气装置
CN105328176B (zh) * 2015-12-03 2017-07-14 重庆志成机械有限公司 一种可旋转调整的吹气装置

Also Published As

Publication number Publication date
US20090065987A1 (en) 2009-03-12
JP2006181615A (ja) 2006-07-13
JP3903321B2 (ja) 2007-04-11
EP1832363A4 (de) 2009-01-07
WO2006070522A1 (ja) 2006-07-06
CN101065202A (zh) 2007-10-31

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