EP2531623A1 - Gasspüleinrichtung - Google Patents
GasspüleinrichtungInfo
- Publication number
- EP2531623A1 EP2531623A1 EP10798729A EP10798729A EP2531623A1 EP 2531623 A1 EP2531623 A1 EP 2531623A1 EP 10798729 A EP10798729 A EP 10798729A EP 10798729 A EP10798729 A EP 10798729A EP 2531623 A1 EP2531623 A1 EP 2531623A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gas
- purging device
- line
- rinsing
- gas line
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/48—Bottoms or tuyéres of converters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
- B22D1/002—Treatment with gases
- B22D1/005—Injection assemblies therefor
-
- 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
- F27D3/16—Introducing a fluid jet or current into the charge
-
- 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
- F27D3/18—Charging particulate material using a fluid carrier
Definitions
- the invention relates to a gas purging device, as used for example in metallurgical melting vessels (such as converter, pan, Tundish) to inject a gas, optionally in combination with finely divided solids in a metallurgical melt.
- metallurgical melting vessels such as converter, pan, Tundish
- Gas purging devices gas purging bricks
- directed porosity typically consist of a refractory ceramic body in which multiple passages (of small flow area) extend in the axial direction of the gas purging device The gas is fed at one end, passed through the passages and at the other end
- the path of the gas through a gas purging plug with directed porosity is largely linear and often in the axial direction of the gas purging device, albeit
- Embodiments are known in which the channels extend obliquely and / or coiled in relation to the axial direction of the gas purging device.
- the refractory ceramic body has a high open porosity which flows through this body not along defined channels, but flows from pore to pore from the gas inlet side end
- axial direction of the gas purging device this refers to the main direction in which the gas flows through the purging device
- the axial direction is identical to the central longitudinal axis of the gas purging device.
- Breakthrough fuses with the help of penetrating melt targeted away and / or frozen.
- Breakthrough protection represents an additional component to the gas purging plug.
- the invention is based on the object to offer a gas purging device of the generic type, which provides a high safety standard and reliable breakthrough of molten metal
- the basic idea of the invention is to design the gas purging device with at least two rinsing zones which, although they can run directly next to one another, are supplied with gas separately.
- the further idea of the invention consists in using the purge gas supplied to a purge zone, at the same time cooling a gas conduit associated with a further purge zone. This cooling is not necessary in the regular operation of the gas purging device; but she creates the
- the invention relates to a gas purging device having a first rinsing zone, which is supplied with gas from a first gas line, and a second rinsing zone, which is supplied with gas by a second gas line, wherein the first and second rinsing zones extend in the axial direction of the gas rinsing device and the first gas conduit has a subsection which extends below a
- Angle of 90 ° + 45 ° to the axial direction of the gas purging device and is arranged so that this portion is lapped by the gas supplied via the second gas line.
- the flow direction of the molten metal will basically correspond to the axial direction of the gas purging device.
- a diversion and thus a slowing down of the flow velocity take place.
- the reduction of the flow velocity and the increase in the contact surface between said portion and said cooling gas can be optimized if the corresponding portion more or less perpendicular (perpendicular) to
- the portion of the first gas line may have a ring shape or the shape of a part s of a ring.
- An alternative embodiment provides to make the section of the first gas line meandering.
- the affected section of the first gas line to be cooled can be guided through a second gas distribution chamber, into which the second gas line opens and from which the second rinsing zone extends.
- the second gas distribution chamber fulfills a plurality of functions. Firstly, it serves to distribute the gas supplied via the second gas line and thus equalize the pressure conditions before the gas is introduced into the second rinse zone.
- the volume of the gas distribution chamber can be used to receive the partial section of the first gas line to be cooled, so that this partial section can be surrounded on all sides with cooling gas.
- fluidic connection to the first rinse zone has. This can for example be achieved by the first gas line with the exception of the part to be cooled with respect to the second
- Gas distribution chamber is sealed. This can be achieved, for example, by providing one or more valves between the affected gas line and adjacent components.
- the partial section of the first gas line to be cooled can run between sections of the gas line which are aligned with one another.
- the said section connects, for example, in a design that a
- Ring section is similar or meandering and opens into another, gas outlet side portion of the gas line, which is aligned with the gas inlet end of the gas line.
- the gas supplied via the first gas line may be in a first
- Gas distribution chamber open, from which extends the first rinse zone.
- the first rinse zone may be made of a refractory ceramic material and may have directional or non-directional porosity. It is also possible to form a first purge zone of directional porosity and a second purge zone of undirected porosity. Likewise, both rinsing zones can each have directional or uneven porosity.
- Gas flushing device can be installed with more than two rinsing zones, with further rinsing zones either via the gas lines for the first and second rinsing zones are supplied. Or it is possible to provide additional rinse zones via separate gas lines with gas and / or gas / solid mixtures.
- the arrangement of the individual rinsing zones is basically not
- Both rinsing zones can be supplied with gas at the gas inlet end via a respectively assigned gas distribution chamber, wherein according to the invention a gas line runs through a gas distribution chamber and is cooled by the gas, which is flushed in via a further gas line there.
- Figure 1 A first embodiment of an inventive
- Gas flushing device in longitudinal section and in a view along the line X-X.
- FIG. 2 shows a second embodiment of the gas purging device in FIG.
- the gas purging device according to FIG. 1 has a cylindrical shape; si e could be designed analogous frusto-conical. Concentric with the center longitudinal axis M-M is a first cylindrical rinsing zone 10
- a first rinse zone 10 Below the first rinse zone 10 is a first
- Gas distribution chamber 14 is arranged.
- a second rinse zone 20 Concentric with the first rinse zone 10, a second rinse zone 20 with so-called undirected porosity runs around it, the refractory material of this second rinse zone 20 again extending from a gas supply-side end 20u to a gas outlet-side end 20o. Below the annular cylindrical second rinsing zone 20, a second gas distribution chamber 24 runs.
- the gas purging device is surrounded by a metal jacket 30, which merges into a bottom 32, which simultaneously forms lower boundary walls for the gas distribution chambers 1 4, 24, which are separated by a metal cylinder 34.
- a second gas line 26 which passes (gas-tight) through the bottom 32 and with
- the gas in the second gas distribution chamber 24 distributed and from there into the open porosity of the second rinse zone 20 can be introduced.
- the gas then flows through the second rinse zone 20 (in the figure: from bottom to top, ie in the axial direction of the gas purging device) until it leaves the gas purging device at 20 o.
- a first gas line 16 also opens into the second
- said portion carries the reference numeral 16t, and then with another portion 1 6z toward the partition wall 34, passes through this (gas-tight) and then opens in the first gas distribution chamber 14 a.
- the gas supplied via line 1 6 initially flows in the axial direction of the gas purging device, is then deflected at 16 u and subsequently flows substantially perpendicularly to the previous one
- the sections 1 6t, 16z have the function of an integrated breakdown protection.
- the second gas line 1 6 here is not in the manner of a ring section through the second
- the section to be cooled 1 6t extends at an angle of 90 ° + 45 ° to the axial direction of the gas purging device, wherein the axial direction as the
- Direction corresponds to the main flow direction of the gas, that is substantially parallel to the central longitudinal axis M-M of the gas purging device, or in other words: the direction between gas inlet side sections l Ou, 20u and gasauslass discourseen
- Sections 1 0o, 20o of the rinse zones 1 0, 20 are Sections 1 0o, 20o of the rinse zones 1 0, 20.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
- Furnace Charging Or Discharging (AREA)
- Furnace Details (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL10798729T PL2531623T3 (pl) | 2010-02-05 | 2010-12-11 | Urządzenie do przepłukiwania gazem |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010007126A DE102010007126B3 (de) | 2010-02-05 | 2010-02-05 | Gasspüleinrichtung |
| PCT/EP2010/007568 WO2011095193A1 (de) | 2010-02-05 | 2010-12-11 | Gasspüleinrichtung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2531623A1 true EP2531623A1 (de) | 2012-12-12 |
| EP2531623B1 EP2531623B1 (de) | 2014-10-08 |
Family
ID=43923518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP10798729.9A Active EP2531623B1 (de) | 2010-02-05 | 2010-12-11 | Gasspüleinrichtung |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP2531623B1 (de) |
| JP (1) | JP5711269B2 (de) |
| KR (1) | KR20120116456A (de) |
| CN (1) | CN102725427B (de) |
| DE (1) | DE102010007126B3 (de) |
| ES (1) | ES2522532T3 (de) |
| PL (1) | PL2531623T3 (de) |
| WO (1) | WO2011095193A1 (de) |
| ZA (1) | ZA201205605B (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102899446A (zh) * | 2012-11-16 | 2013-01-30 | 重庆赛迪工业炉有限公司 | 一种吹扫装置 |
| PL2942406T3 (pl) * | 2014-05-05 | 2016-08-31 | Refractory Intellectual Property Gmbh & Co Kg | Ognioodporny ceramiczny element do przedmuchiwania gazem |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE763185C (de) * | 1938-06-14 | 1953-02-09 | August Thyssen Huette A G | Verfahren und Vorrichtung zum Einbringen von Zusatzstoffen in den Konverter |
| DE1027582B (de) * | 1953-08-31 | 1958-04-03 | Dynamidon Werk Engelhorn & Co | Verfahren zur Herstellung von hochfeuerfesten Steinen |
| JPS5721667U (de) * | 1980-07-09 | 1982-02-04 | ||
| DE3110204A1 (de) * | 1981-03-17 | 1982-10-14 | Didier-Werke Ag, 6200 Wiesbaden | Vorrichtung zum einfuehren von gasen in metallurgische gefaesse |
| AT376455B (de) * | 1982-10-06 | 1984-11-26 | Oesterr Amerikan Magnesit | Metallurgischer ofen oder metallurgisches gefaess |
| DE8437953U1 (de) * | 1984-12-24 | 1985-09-19 | Steuler Industriewerke GmbH, 5410 Höhr-Grenzhausen | Gaszuleitungsrohr von Gasspüleinheiten für Stahlgußpfannen |
| US4754954A (en) * | 1986-01-29 | 1988-07-05 | Lazcano Navarro Arturo | Refractory device for introducing a gas into a molten metal and a method for making the device |
| DE3716388C1 (de) * | 1987-05-15 | 1988-10-27 | Radex Deutschland Ag | Gasspuelstein |
| JPH03297537A (ja) * | 1990-04-13 | 1991-12-27 | Nkk Corp | 取鍋底吹きポーラス煉瓦および取鍋底吹きポーラス煉瓦の地金除去方法 |
| ATE110115T1 (de) * | 1990-12-07 | 1994-09-15 | Veitsch Radex Ag | Boden- oder wandausbildung für ein metallurgisches gefäss. |
| DE4103837A1 (de) * | 1991-02-08 | 1992-08-13 | Plibrico Gmbh | Einblasvorrichtung fuer ein metallurgisches gefaess |
| JPH0656690U (ja) * | 1992-12-25 | 1994-08-05 | 愛知製鋼株式会社 | 製鋼用電気炉 |
| US6199836B1 (en) * | 1998-11-24 | 2001-03-13 | Blasch Precision Ceramics, Inc. | Monolithic ceramic gas diffuser for injecting gas into a molten metal bath |
| JP2002028772A (ja) * | 2000-07-14 | 2002-01-29 | Daido Steel Co Ltd | ポーラスプラグ |
| KR100931159B1 (ko) * | 2002-11-21 | 2009-12-10 | 주식회사 포스코 | 래들용 포러스 플러그장치 |
| DE10305232B3 (de) * | 2003-02-08 | 2004-08-05 | Refractory Intellectual Property Gmbh & Co.Kg | Feuerfester keramischer Gasspülstein |
| JP2006283052A (ja) * | 2005-03-31 | 2006-10-19 | Jfe Steel Kk | ガス吹き込み羽口 |
| DE102008029934B3 (de) * | 2008-06-26 | 2009-06-10 | Refractory Intellectual Property Gmbh & Co. Kg | Feuerfester keramischer Gasspülstein |
-
2010
- 2010-02-05 DE DE102010007126A patent/DE102010007126B3/de active Active
- 2010-12-11 ES ES10798729.9T patent/ES2522532T3/es active Active
- 2010-12-11 JP JP2012551505A patent/JP5711269B2/ja active Active
- 2010-12-11 CN CN201080063159.8A patent/CN102725427B/zh active Active
- 2010-12-11 EP EP10798729.9A patent/EP2531623B1/de active Active
- 2010-12-11 KR KR1020127019884A patent/KR20120116456A/ko not_active Ceased
- 2010-12-11 WO PCT/EP2010/007568 patent/WO2011095193A1/de not_active Ceased
- 2010-12-11 PL PL10798729T patent/PL2531623T3/pl unknown
-
2012
- 2012-07-25 ZA ZA2012/05605A patent/ZA201205605B/en unknown
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2011095193A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102725427B (zh) | 2015-04-15 |
| CN102725427A (zh) | 2012-10-10 |
| JP2013519061A (ja) | 2013-05-23 |
| KR20120116456A (ko) | 2012-10-22 |
| ES2522532T3 (es) | 2014-11-14 |
| JP5711269B2 (ja) | 2015-04-30 |
| DE102010007126B3 (de) | 2011-07-07 |
| EP2531623B1 (de) | 2014-10-08 |
| ZA201205605B (en) | 2013-05-29 |
| WO2011095193A1 (de) | 2011-08-11 |
| PL2531623T3 (pl) | 2015-01-30 |
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