US20090065987A1 - Molten metal ladle - Google Patents
Molten metal ladle Download PDFInfo
- Publication number
- US20090065987A1 US20090065987A1 US11/665,837 US66583705A US2009065987A1 US 20090065987 A1 US20090065987 A1 US 20090065987A1 US 66583705 A US66583705 A US 66583705A US 2009065987 A1 US2009065987 A1 US 2009065987A1
- Authority
- US
- United States
- 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.)
- Abandoned
Links
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 51
- 239000002184 metal Substances 0.000 title claims abstract description 51
- 230000003247 decreasing effect Effects 0.000 claims 1
- 239000002893 slag Substances 0.000 abstract description 20
- 230000007423 decrease Effects 0.000 abstract description 4
- 238000007599 discharging Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000011449 brick Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- -1 scales Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Images
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 .
- Patent Document 1 Japanese Unexamined Patent Publication No. 2000-106935
- 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 ) shows a cross-sectional view of a molten metal ladle according to one embodiment of the present invention
- FIG. 1 ( b ) shows a cross-sectional view of FIG. 1( a ) taken along the line A-A.
- FIG. 2 is a cross-sectional view of a molten metal ladle according to another embodiment of the present invention.
- FIG. 3 is a cross-sectional view of a molten metal ladle according to still another embodiment of the present invention.
- FIG. 4 is a cross-sectional view of a known molten metal ladle.
- 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 18 a 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 17 a 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 17 a 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 30 a 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 30 b 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 31 a .
- a means for supplying compressed air (such as a compressor), which is not shown in the figure, is connected to the compressed air inlet 31 a . 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 33 a 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 .
- scales, slag, etc., that adhere to the innermost surfaces 18 a , 17 a of the upper portion lining layer 18 and the lower portion lining layer 17 a are scratched off by inserting a scraper or like removing tool into the ladle body 10 from the opening 13 .
- the innermost surface 18 a 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 17 a 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 18 a , 17 a 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 18 a 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 17 a 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 18 a 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 17 a 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 18 a 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 18 a of the upper portion lining layer 18 forms an inclined plane wherein the opening area decreases from the top end of the innermost surface 17 a 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 .
- each refractory member 16 is supported by a refractory member 16 immediately below, the tensile load in the gravity direction generated in the lining surface of the refractory member 16 is reduced, and therefore dropping of the refractory member 16 can be effectively prevented.
- the angle ⁇ between the inclined line of the innermost surface 18 a 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 18 a 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 18 a 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 18 a 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 17 a 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)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004379356A JP3903321B2 (ja) | 2004-12-28 | 2004-12-28 | 溶融金属取鍋 |
JP2004-379356 | 2004-12-28 | ||
PCT/JP2005/018925 WO2006070522A1 (ja) | 2004-12-28 | 2005-10-14 | 溶融金属取鍋 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20090065987A1 true US20090065987A1 (en) | 2009-03-12 |
Family
ID=36614648
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/665,837 Abandoned US20090065987A1 (en) | 2004-12-28 | 2005-10-14 | Molten metal ladle |
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)
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 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
KR101929640B1 (ko) * | 2014-01-23 | 2018-12-14 | 제이에프이 스틸 가부시키가이샤 | 용융 금속 용기의 라이닝 구조체의 제조 방법 및 용융 금속 용기의 라이닝 구조체 |
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 |
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 |
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 |
Citations (5)
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 |
US4118018A (en) * | 1975-10-29 | 1978-10-03 | Mannesmann Aktiengesellschaft | Cover device for casting vessels, ladles or other metallurgical treatment containers |
US6110414A (en) * | 1997-02-06 | 2000-08-29 | Mannesmann Ag | Vessel for metallurgical purposes |
US6368549B1 (en) * | 1997-08-19 | 2002-04-09 | Sms Demag Ag | Metallurgical vessel |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51147510A (en) * | 1975-06-13 | 1976-12-17 | Nippon Steel Corp | Method of measuring working surface profile of refractory lining vessels and of mending the surface |
SU969453A1 (ru) * | 1981-06-29 | 1982-10-30 | Восточный научно-исследовательский и проектный институт огнеупорной промышленности | Установка дл изготовлени монолитной футеровки металлургических емкостей |
US4931090A (en) * | 1989-08-23 | 1990-06-05 | Zia Technology, Inc. | Pneumatic steelmaking vessel and method of producing steel |
JPH06190539A (ja) * | 1992-12-22 | 1994-07-12 | Mitsubishi Materials Corp | 溶湯金属供給器具 |
JP3325256B2 (ja) * | 2000-04-07 | 2002-09-17 | 株式会社大紀アルミニウム工業所 | 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 |
-
2004
- 2004-12-28 JP JP2004379356A patent/JP3903321B2/ja active Active
-
2005
- 2005-10-14 EP EP05793202A patent/EP1832363A4/de not_active Withdrawn
- 2005-10-14 CN CNA2005800403942A patent/CN101065202A/zh active Pending
- 2005-10-14 WO PCT/JP2005/018925 patent/WO2006070522A1/ja active Application Filing
- 2005-10-14 US US11/665,837 patent/US20090065987A1/en not_active Abandoned
Patent Citations (5)
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 |
US4118018A (en) * | 1975-10-29 | 1978-10-03 | Mannesmann Aktiengesellschaft | Cover device for casting vessels, ladles or other metallurgical treatment containers |
US6110414A (en) * | 1997-02-06 | 2000-08-29 | Mannesmann Ag | Vessel for metallurgical purposes |
US6368549B1 (en) * | 1997-08-19 | 2002-04-09 | Sms Demag Ag | Metallurgical vessel |
Cited By (1)
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 |
Also Published As
Publication number | Publication date |
---|---|
EP1832363A4 (de) | 2009-01-07 |
WO2006070522A1 (ja) | 2006-07-06 |
EP1832363A1 (de) | 2007-09-12 |
CN101065202A (zh) | 2007-10-31 |
JP2006181615A (ja) | 2006-07-13 |
JP3903321B2 (ja) | 2007-04-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: NIPPON CRUCIBLE CO., LTD., JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KAWAI, KIYOHUMI;MUKAI, KATSUYOSHI;MATSUMOTO, TOSHIYUKI;REEL/FRAME:019231/0141 Effective date: 20070313 Owner name: DAIKI ALUMINIUM INDUSTRY CO., LTD., JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KAWAI, KIYOHUMI;MUKAI, KATSUYOSHI;MATSUMOTO, TOSHIYUKI;REEL/FRAME:019231/0141 Effective date: 20070313 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |