US20120055958A1 - Bottom pouring nozzle for use in a container for metal melts - Google Patents
Bottom pouring nozzle for use in a container for metal melts Download PDFInfo
- Publication number
- US20120055958A1 US20120055958A1 US13/319,720 US201013319720A US2012055958A1 US 20120055958 A1 US20120055958 A1 US 20120055958A1 US 201013319720 A US201013319720 A US 201013319720A US 2012055958 A1 US2012055958 A1 US 2012055958A1
- Authority
- US
- United States
- Prior art keywords
- pouring nozzle
- pressure
- mbar
- pouring
- metal melts
- 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 19
- 239000002184 metal Substances 0.000 title claims abstract description 19
- 239000000155 melt Substances 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 239000000161 steel melt Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000011109 contamination Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000000126 substance Substances 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
- B22D41/50—Pouring-nozzles
- B22D41/502—Connection arrangements; Sealing means therefor
-
- 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
- B22D41/50—Pouring-nozzles
Definitions
- the invention relates to a bottom pouring nozzle for use in a container for metal melts, having an inner wall surrounding a through-flow opening for metal melts, and an outer housing. Further, the invention relates to a method for operating the pouring nozzle, and to a pouring device for metal melts.
- Such a pouring nozzle is well known in the prior art.
- Korean patent application publication no. KR 2003-0054769 the construction and operation of such a pouring nozzle are described.
- the pressure within the material of the pouring nozzle should be slightly reduced.
- Such pressure reductions of minus 1000 to minus 1300 mm H 2 O are found in typical pouring nozzles of pouring equipment in the steel industry. They correspond to an absolute pressure of about 885 mbar to 915 mbar.
- German Patent DE 198 47 271 C1 describes a method in which the described adhering should be avoided by adding particular slag formers to the molten steel. Here, foreign substances are thus introduced into the molten steel.
- the adherences are described as aluminum compounds forming in the molten steel.
- the object of the present invention is to provide a pouring nozzle which is improved in terms of adhering of material during through-flow and, at the same time, is largely simplified.
- the object is achieved by a pouring nozzle for use in a container for metal melts, having an inner wall surrounding a through-flow opening for metal melts and an outer housing, wherein during operation of the pouring nozzle a pressure of at maximum 500 mbar exists between the inner wall and the outer housing.
- the object is further achieved by a method of operating the pouring nozzle for a metallurgical vessel having an inner wall surrounding a through-flow opening for metal melts and an outer housing, wherein during operation of the pouring nozzle a pressure of at maximum 500 mbar exists between the inner wall and the outer housing.
- the problem of adhering can be solved for the most part in that during operation of the pouring nozzle a pressure of at maximum 500 mbar exists between its inner wall and its outer housing.
- the pressure is at maximum 400 mbar, in particular at maximum 300 mbar.
- the pressure ranges from 100 to 400 mbar, preferably from 250 to 300 mbar.
- a gas entrance into the through-flow opening of the pouring nozzle is effectively avoided, so that there is virtually no adhering of material on the wall of the through-flow opening while the material is flowing through.
- there is no gas contamination of the metal melt flowing through in particular no contamination of a steel melt.
- the pouring rate is not lowered, turbulences in the melt are reduced.
- the required negative pressure can be generated preferably by conventional pumps.
- a pouring device is equipped with a container for metal melts having a pouring nozzle, as described above, arranged in a wall, in particular in the floor (bottom) of the container.
- the pouring nozzle may be equipped with an upper and a lower nozzle.
- the upper nozzle may be arranged directly in the wall of a pouring apparatus, while the lower nozzle is arranged below it.
- a slide valve known in principle, may be arranged with whose help the through-flow opening can be opened or closed to regulate the flow of the metal melt.
- a stopper rod can also be used in a known manner.
- operation of the pouring nozzle is to be understood its operating state, that is, the state that exists during the through-flow of the metal melt.
- the pouring nozzle is preferably used for steel melts.
- FIG. 1 is a side sectional view of a pouring device having a pouring nozzle according to one embodiment of the invention.
- FIG. 2 is a side sectional view of a conventional pouring device having a bottom pouring nozzle.
- the pouring device 1 shown in FIG. 1 is, for example, a distributor of steel melts, in whose bottom a pouring nozzle 2 is arranged.
- the pouring nozzle 2 is inserted with its upper part 3 into seating stone 4 , which is arranged in lining 5 of the distributor.
- Below the upper part 3 is arranged a so-called slide valve 6 , by which through-flow opening 7 of the pouring nozzle 2 can be closed or opened.
- the slide valve 6 can be configured in a known manner. It is equipped with a push rod 8 , which regulates the closure and which is guided in a sealed manner through the outer housing 9 of the pouring nozzle 2 .
- the outer housing 9 surrounds the slide valve 8 and lies at its lower part sealed against the lower part 10 of the pouring nozzle 2 .
- housing 9 extends around the upper part 3 of the pouring nozzle 2 , lies densely against the upper 3 , and is surrounded on the outside by seating stone 4 .
- the lower part 10 of the pouring nozzle 2 is arranged below the slide valve 6 . It extends into mold 11 .
- a vacuum pump is connected to an adjustable pump valve 12 , by which the pressure between the outer housing 9 and the inner wall 13 bordering the through-flow opening 7 is lowered to a value of about 250 mbar. The pressure is measured in the pumping section.
- FIG. 2 shows a pouring device without a significant reduction in pressure, which is generally similar to the arrangement shown in FIG. 1 , but in which no pressure-reducing measures, in particular no housing and no vacuum pump, are present. This installation is operated at atmospheric pressure, thus at a pressure of about 1000 mbar.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Structure Of Emergency Protection For Nuclear Reactors (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Furnace Charging Or Discharging (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009020990.5 | 2009-05-12 | ||
| DE102009020990A DE102009020990A1 (de) | 2009-05-12 | 2009-05-12 | Bodenausguss zum Einsatz in einen Behälter für Metallschmelzen |
| PCT/EP2010/002443 WO2010130330A1 (fr) | 2009-05-12 | 2010-04-21 | Procédé pour faire fonctionner une busette de coulée de fond de cuve destinée à être utilisée dans une cuve pour métaux en fusion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US20120055958A1 true US20120055958A1 (en) | 2012-03-08 |
Family
ID=42556918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US13/319,720 Abandoned US20120055958A1 (en) | 2009-05-12 | 2010-04-21 | Bottom pouring nozzle for use in a container for metal melts |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US20120055958A1 (fr) |
| EP (1) | EP2429743A1 (fr) |
| JP (1) | JP2012526659A (fr) |
| KR (1) | KR20120027323A (fr) |
| CN (1) | CN102421552A (fr) |
| BR (1) | BRPI1013506A2 (fr) |
| DE (1) | DE102009020990A1 (fr) |
| MX (1) | MX2011011987A (fr) |
| RU (1) | RU2011150270A (fr) |
| WO (1) | WO2010130330A1 (fr) |
| ZA (1) | ZA201108253B (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130233899A1 (en) * | 2010-11-11 | 2013-09-12 | Rhi Ag | Discharge nozzle for installation inside the base of a metallurgical vessel |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114619006A (zh) * | 2022-02-14 | 2022-06-14 | 包头钢铁（集团）有限责任公司 | 一种换包时管线钢中夹杂物控制方法 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS613653A (ja) * | 1984-06-15 | 1986-01-09 | Kawasaki Steel Corp | シ−ル機構を有するスライデイングノズル装置 |
| JPH03281045A (ja) * | 1990-03-29 | 1991-12-11 | Kurosaki Refract Co Ltd | シール機構を有するスライディングノズル装置 |
| JP2551941Y2 (ja) * | 1991-01-11 | 1997-10-27 | 住友金属工業株式会社 | 密閉式スライディングノズル |
| JPH05138335A (ja) * | 1991-07-12 | 1993-06-01 | Shinagawa Refract Co Ltd | カートリツジ式スライドバルブ装置におけるシール機構及び／又はガス吹込又は真空吸引機構 |
| JPH05185191A (ja) * | 1992-01-10 | 1993-07-27 | Kobe Steel Ltd | タンディッシュから鋳型への注湯方法および注湯ノズル構造 |
| JP3484820B2 (ja) * | 1995-04-20 | 2004-01-06 | 大同特殊鋼株式会社 | 快削鋼の連続鋳造方法 |
| DE19847271C1 (de) | 1998-10-07 | 2000-05-04 | Mannesmann Ag | Verfahren zur Erzeugung von Stahl mit einem Kohlenstoffgehalt gleich/kleiner 0,9 Gewichtsprozent und einem Si-Gehalt von 0,15 - 1,0 Gewichtsprozent |
| KR20030054769A (ko) | 2001-12-26 | 2003-07-02 | 주식회사 포스코 | 주편 내의 공기 흡입이 감소되는 연속주조방법 |
| DE102004057381A1 (de) | 2004-11-26 | 2006-06-01 | Heraeus Electro-Nite International N.V. | Verfahren zur Regelung des Durchflusses sowie Bodenausguss für ein metallurgisches Gefäß |
-
2009
- 2009-05-12 DE DE102009020990A patent/DE102009020990A1/de not_active Withdrawn
-
2010
- 2010-04-21 CN CN2010800206606A patent/CN102421552A/zh active Pending
- 2010-04-21 JP JP2012510127A patent/JP2012526659A/ja active Pending
- 2010-04-21 RU RU2011150270/02A patent/RU2011150270A/ru not_active Application Discontinuation
- 2010-04-21 MX MX2011011987A patent/MX2011011987A/es unknown
- 2010-04-21 US US13/319,720 patent/US20120055958A1/en not_active Abandoned
- 2010-04-21 EP EP10719993A patent/EP2429743A1/fr not_active Withdrawn
- 2010-04-21 KR KR1020117029426A patent/KR20120027323A/ko not_active Ceased
- 2010-04-21 WO PCT/EP2010/002443 patent/WO2010130330A1/fr not_active Ceased
- 2010-04-21 BR BRPI1013506A patent/BRPI1013506A2/pt not_active IP Right Cessation
-
2011
- 2011-11-10 ZA ZA2011/08253A patent/ZA201108253B/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130233899A1 (en) * | 2010-11-11 | 2013-09-12 | Rhi Ag | Discharge nozzle for installation inside the base of a metallurgical vessel |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20120027323A (ko) | 2012-03-21 |
| DE102009020990A1 (de) | 2010-11-18 |
| ZA201108253B (en) | 2012-07-25 |
| CN102421552A (zh) | 2012-04-18 |
| RU2011150270A (ru) | 2013-06-20 |
| MX2011011987A (es) | 2011-12-08 |
| BRPI1013506A2 (pt) | 2016-04-05 |
| JP2012526659A (ja) | 2012-11-01 |
| WO2010130330A1 (fr) | 2010-11-18 |
| EP2429743A1 (fr) | 2012-03-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9862586B2 (en) | Filling element and filling machine for filling bottles or similar containers | |
| IT8147884A1 (it) | Elemento di riempimento per macchine riempitrici a contropressione. | |
| EP0866739B1 (fr) | Tuyere comportant un injecteur de gaz inerte | |
| KR0138105B1 (ko) | 가스 유통체 | |
| US20120055958A1 (en) | Bottom pouring nozzle for use in a container for metal melts | |
| US10801082B2 (en) | Molten metal treatment lance | |
| CN1089043C (zh) | 液态金属转移设备及液态金属保护方法 | |
| CN110317928B (zh) | 钢包自动吹氩系统 | |
| AU2011328557B2 (en) | Floor casting nozzle for arrangement in the floor of a metallurgical container | |
| WO2018108789A1 (fr) | Bouchon équipé d'un dispositif de détection de scories intégré | |
| RU2374035C2 (ru) | Стопор | |
| EP2792433A1 (fr) | Système d'étanchéité de préférence dans une grille coulissante sur le bec d'un récipient métallurgique et logement de bec | |
| US5390902A (en) | Belt for sealing a pouring tube | |
| KR101872036B1 (ko) | 금속야금 용기용 슬라이딩 클로져 | |
| AU2007229270B2 (en) | A forehearth | |
| EP0922511B1 (fr) | Procédé de coulée continue d'acier liquide pour l'obtention de billettes ou de lingots de haute qualité | |
| CN1131921A (zh) | 打开熔融金属排放口的方法和装置 | |
| KR20100046482A (ko) | 합금철 투입장치 | |
| JP7071530B2 (ja) | 空気圧式スラグストッパ | |
| US9517505B2 (en) | Tube for pouring liquid metal, assembly of a tube and a metal frame and metal frame | |
| JP2001276964A (ja) | 加圧式金属溶湯供給装置 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AS | Assignment |
Owner name: HERAEUS ELECTRO-NITE INTERNATIONAL N.V., BELGIUM Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:DAMS, FRANCIS;KENDALL, MARTIN;REEL/FRAME:027206/0197 Effective date: 20110816 |
|
| AS | Assignment |
Owner name: RHI AG, AUSTRIA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:HERAEUS ELECTRO-NITE INTERNATIONAL N.V.;REEL/FRAME:028438/0497 Effective date: 20120420 |
|
| STCB | Information on status: application discontinuation |
Free format text: EXPRESSLY ABANDONED -- DURING EXAMINATION |