CN1784500B - Gas bubbling element and corresponding gas flushing device - Google Patents
Gas bubbling element and corresponding gas flushing device Download PDFInfo
- Publication number
- CN1784500B CN1784500B CN2004800119871A CN200480011987A CN1784500B CN 1784500 B CN1784500 B CN 1784500B CN 2004800119871 A CN2004800119871 A CN 2004800119871A CN 200480011987 A CN200480011987 A CN 200480011987A CN 1784500 B CN1784500 B CN 1784500B
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- Prior art keywords
- gas
- bleed element
- distribution chamber
- section
- feed tube
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- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Furnace Charging Or Discharging (AREA)
- Sampling And Sample Adjustment (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Preparing Plates And Mask In Photomechanical Process (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Gas Separation By Absorption (AREA)
- Treating Waste Gases (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
The invention relates to a refractory ceramic gas bubbling element for a metallurgical crucible and to a corresponding gas bubbling system comprising such a gas bubbling element.
Description
The present invention relates to the gas flushing device that refractory gas bleed element that a kind of metallurgical cupola well uses and a kind of accessory have such gas bleed element.
The gas bleed element of described type is disclosing perhaps many years ago.It is used for gas, and for example argon gas or nitrogen are blown in a kind of metallurgical solution.This gas has different effects: utilize this gas to make molten metal even.In addition can the promote the oxidation process.A purpose of described gas processing also can be nonmetal impurities or for example desulfurization or the dephosphorization of removing in the liquation of molten steel.
The metallurgical cupola well that has used this type of gas bleed element inside can for example be steel teeming ladle or ladle furnace.The gas bleed element of described type also is applied to the vacuum-treat of steel.
Here, gas guides along the gas bleed element between the first end of supply gas and a second end that gas is entered liquation at one respectively.General by corresponding passage guiding gas.These passages can for example directly form in stupalith by the material that can burn.But these passages also can be formed by the pipe (tubule) that is distributed in the stupalith.These passages have different shape of cross sections.Flow cross for example is circle or slit-shaped.These passages can be direct, promptly axially only also can labyrinth type extend to the other end from an end.
Disclosed in addition also have, at the first end of gas bleed element or a so-called protection mechanism that breaks through is set in gas bleed element self.A kind of such protection mechanism that breaks through is used for stoping molten metal to penetrate into the gas bleed element.
Disclosed gas bleed element for example has the circular cross section of a perforation.The conical gas bleed element of frustum also discloses in addition, and it uses as so-called replaceable rinser.This gas bleed element can be packed in the fireproof framing member.This framing member is the assembly of melting equipment, for example the assembly of electric arc furnace or open hearth.This flushing element is installed in the bottom or sidewall of metallurgical cupola well especially.Flushing element in the bottom can be provided with like this, and promptly gas sprays in the liquation perpendicular to lower surface more or less.But also disclose, for gas being directed to a definite point in the liquation, the flushing element is provided with obliquely.This sidewall that equally also is applicable to the flushing element is installed.This installation more or less level is carried out, and promptly tilts perpendicular to the inwall of metallurgical tank or to horizontal plane (weld pool surface).
The supply of rinsing gas can be continuous or discrete.Must guarantee that under any circumstance during this gas flushing device, it is workable always if desired.This requires corresponding security measures, to prevent that for example venting channels is stopped up by molten metal or slag.
To guarantee especially in addition, prevent breaking through of the molten metal mentioned.
Accordingly, task of the present invention is to provide a kind of gas bleed element and a kind of accessory gas flushing device, they have a high safety standards, allow safety and supply gas and can have the metallurgical function that limitation ground does not satisfy hope in molten metal regularly.
In order to reach this purpose, the present invention advises the refractory gas bleed element that a kind of metallurgical cupola well is used, and this flushing element has following section, just at one thereon between the first end and the second end of discharging gas thereon of supply gas:
-at least one feed tube feeds first end,
-this feed tube feeds one first gas distribution chamber,
-a plurality of capillary channels extend to one second gas distribution chamber from first gas distribution chamber always,
-extending the second end of at least one air passageways from second gas distribution chamber up to the gas bleed element, the cross section of described air passageways is bigger than the cross section of capillary channel.
A kind of such gas bleed element has following characteristic and advantage:
Though that this gas bleed element is divided into is different, axially interconnected section, can guarantee a successive gas delivery from (so-called cold) first end to (so-called hot) the second end.Gas can be introduced the flushing element by feed tube like this.Gas arrives first gas distribution chamber therefrom, and the gas of going out therefrom then flows to the second end by a plurality of capillary channels, arrives one second gas distribution chamber afterwards.Gas is guided the second end of gas bleed element and discharge therefrom through what mention into than major path therefrom.
A kind of such gas bleed element has a plurality of security features:
If molten metal penetrates into the gas passage that extends from the second end towards first end, at this moment second gas distribution chamber is invaded with the continuation that prevents molten metal as " blocking layer ".Described gas distribution chamber has a cross section bigger than gas passage sum, and the molten metal of Shen Ruing can spread apart, cools off and solidify like this.Invade towards the continuation of cold (first) end of gas flushing device and also can so prevent, promptly connecting capillary channel at the second gas distribution chamber the other end.These capillary channels have obviously little flow cross than the gas passage in the second end zone, and so only just in this point, the intrusion of molten metal in capillary channel is just extra to become difficult.
For example the gas passage in the second end zone have one＞2mm or＞internal diameter of 3mm, and select the internal diameter＜1mm of capillary channel.
Even but molten metal flows into and has passed through capillary channel, provide an other safety mechanism by gas bleed element of the present invention by first gas distribution chamber, in this gas distribution chamber, obtain one with by the described similar effects of second gas distribution chamber.
Last the present invention is provided with one the 4th security measures in one embodiment.This security measures is that the feed tube of leading in first gas distribution chamber has a length, and this length is greater than the first end of gas bleed element and the axial distance between first gas distribution chamber.Change a kind of saying: this feed tube should not be linearly extended, but have at least one, preferred, the section of a plurality of bendings (bending) prolongs the circulation distance.In this feed tube can for example be that volution, thread-shaped and/or indentation ground are crooked.By repeatedly " fork ", the circulation distance of gas has prolonged on the one hand, and this can not produce detrimentally affect in principle, but the distance that has also prolonged the molten metal that may invade, and it is compelled to cooling and solidifies like this.
Here, feed tube can be made by a kind of material, and this material melts when temperature is lower than a kind of temperature of metallurgical solution to be processed.Feed tube will melt if molten metal invades this zone.If feed tube is as being contained in a kind of loose material by the setting of another one embodiment, molten metal can promptly diverge accelerated solidification behavior again thus in this section diffusion of gas bleed element like this.Self-evident, loose material must be arranged in the corresponding outside vessel (for example being made by metal or closely knit pottery), like this liquation radial diffusion uncontrolledly not.This container is also encased by refractory materials.
With regard in question Duan Eryan along longitudinal center line, they needn't physical sepn.This notion should go from functional aspect to understand more.Single like this section can have an identical shape of cross section, for example is designed to a circular cross section, total has like this produced an Outer cylindrical shape for the gas bleed element.Described one section can be interconnection.But also can be that all sections are assemblied in the common refractory substrates.This moment, described gas bleed element can have a constant cross section, for example a circular cross section on its whole length.Cross section also can change from the first end to the second end, for example dwindles, and produces a conical shape of frustum like this.The gas bleed element can use as replaceable rinser especially by this way.
For the cross section that remains unchanged, particularly circular cross section, for the accessory gas flushing device provides following possibility, promptly the gas bleed element is in axial motion and/or rotation.Gas flushing device is designed to have a corresponding driving device for this reason.This drive unit can be used for gas bleed element alternative axially and/or rotatablely move.For example wash element can alternately axially seesaw several millimeter (for example+/-3mm), perhaps rotate the angle in several years in one or another direction.This drive unit can be that also following purpose uses, promptly, that is to say towards liquation to promote forward axially promoting the flushing element backward, for example when the flushing element when the area part of first end weares and teares.
As already mentioned, the cross section of first and second gas distribution chamber is greater than the cross-sectional area sum of the capillary channel of connection, thinks that the liquation that may invade forms diffusion space and guarantees that gas imports capillary channel or derives capillary channel.
According to an embodiment, the flow cross of a capillary channel (being the effective cross section of fluid technique) than one the feed tube of first end or in the flow cross of the gas passage of the second end to when young 50%.Wherein, the flow cross of each capillary channel also can be significantly less than with respect to feed tube or gas passage said 50%, for example little by 70%, 80% or 90%.
By an embodiment, the gas passage on the second end is designed to slit-shaped, that is to say, these gas passages have a rectangular cross section.This gas passage equally also can be designed to have the flow cross of a trilateral or water droplet shape.Wherein, be favourable if for water droplet shape cross section geometricdrawing the time, passage (tubule) so is set verified, promptly narrower end is towards the middle longitudinal axis of gas bleed element, as described in description of drawings below.
Gas distribution chamber can form in the ceramic matrix material of gas bleed element on the spot.Gas distribution chamber also can be formed by metal cavitg, and accessory gas passage or capillary channel lead in this cavity.
The capillary channel substantial axial is provided with promptly parallel and separated from each otherly, and can be provided with in a different manner at the gas passage in the second end zone of gas bleed element:
For example to having the geometric gas passage of described water droplet, a kind of embodiment stipulates that this passage disperses to be provided with " symmetry " on cross section.For example for three passages, can be with single passage-compare-be arranged on 6 points, and position at 10 at 14 with clock and watch.
In another embodiment, especially when the gas passage of having selected to have circular cross section or slit-shaped passage, these passages can be along a virtual straight line and extending separated from each otherly, wherein for example in the rinser on a sidewall that is installed in container this straight line flatly extend.
Passage and cavity are always encased by refractory ceramic material (body material).This material can be cast maybe and can press.A shell is dispensable.Pottery flushing element can be installed like this.
Other feature of the present invention is the theme of dependent claims and remaining application material.
Next the present invention describes by different accompanying drawing diagram ground, and wherein to release for better map be schematically pure to accompanying drawing.
This illustrate:
Fig. 1: a side-view according to gas bleed element of the present invention,
Fig. 2: according to the cross section of Fig. 1 along straight line A-A,
Fig. 3: an alternative structure of pressing the embodiment of Fig. 2,
Fig. 4: among Fig. 1 along the cross section of straight line B-B,
Fig. 5: the cross section C-C in the zone of the first end of flushing element on vertically, described flushing element has first gas distribution chamber that has connected,
Fig. 6: at the cross section D-D that vertically passes through second gas distribution chamber,
Fig. 7: a side-view that has the gas flushing device of a flushing element that on bearing, leads,
Fig. 8: but a view that has by the gas flushing device of the gas bleed element of a drive unit axial motion.
Member same in the drawings or a same purpose is represented with identical Reference numeral.
In Fig. 1, described one according to gas bleed element of the present invention.The structure of this gas bleed element (from right to left) is as follows:
A feed tube 5 enters one first section 3 at the E1 place, this first section in the end by a steel plate 30 restriction and circumference by 14 restrictions of a steel pipe.Feed tube 5 is at steel plate 30 back spiral extensions, and wherein spiral is by Reference numeral 13 expressions.Spiral 13 extends in a space, and this space is for example filled on expansible perlite basis and limited by another steel plate 31 with a certain distance from steel plate 30 by a kind of loose material 15, and this spiral 13 is by this steel plate.
On steel plate 31, connect one first gas distribution chamber 32, of steel pipe 14 restrictions of this gas distribution chamber periphery by prolonging.
Follow a section 2 on the gas flow direction, Fig. 4 illustrates its cross section.In a cylindrical steel framework 12 (prolongation of pipe 14), there is a kind of refractory ceramic material, a plurality of capillary channels 10 of axial distribution of edge flushing element in this material.The circular cross section that it is 0.5mm that described capillary channel (being formed by fine steel tube) has an internal diameter.
By feed tube 5 and spiral 13, guiding flows into back to back first gas distribution chamber 16 (Fig. 6) through the gas of first gas distribution chamber 32 by capillary channel 10, and its inside is by 33 restrictions of a body, and this body places a shell 17.Body 13 and shell 17 can be made by metal or refractory.
Gas by the guiding of second gas distribution chamber 16 then arrives gas passage 6, these gas passages in a kind of ceramic matrix material 8 (Fig. 2,3) axially and distributes separated from each otherly, and up to the end face of the second end E2 of gas bleed element.
According to Fig. 2, three gas passages 6 with circular cross section are along a virtual horizontal linear setting.In the gas passage 6 each all has the interior cross section of a 2mm.Fig. 3 shows an alternate embodiments, and here three passages 6 have the water droplet shape respectively, and wherein 6 points, and position is compared-be arranged on to gas passage 6-and clock and watch at 10 at 14.Gas passage 6 towards being such, promptly narrow, subtriangular end is respectively inwardly.
This section 1 of flushing element is limited at circumference by a metal tube 9 equally.
Single section the shell of being made by ceramic member or metalwork (pipe fitting) mechanically connects mutually respectively, and wherein end segments is ladder-type structure and has respective threads.The flushing element of describing in Fig. 1 encases with refractory materials fully.Whole gas bleed element can be assemblied in the tubular shell of a perforation equally or abandon shell fully.Gas distribution chamber 16,32 becomes to be positioned at a kind of ceramic matrix material the inside with different channels designs in this case.
Not only feed tube 5, and capillary channel 10 and gas passage 6 form by metal thin tube, but can form on the spot equally, for example forms in the following way when producing, promptly packing on their position has the material that corresponding cross section can be burnt, and this material can be burnt later on.This is equally applicable to, and forms cavity (gas distribution chamber) in ceramic matrix.
By interconnected section end that flows to the gas outflow side always, the E2 mark is used in this end to gas in Fig. 1 from first end E1.
The function of flushing element has illustrated when explanation is of the present invention.That mentions also has, and screw thread 13 here is made of copper, promptly a kind of low-melting relatively metal.
Wash element by a plurality of bearing 18,19 guiding according to Fig. 7.Said bearing is a rolling bearing.Can rotate tubular flushing element by a motor M and a variator 20, just alternately and to the right left.This drive unit is in the cupola well outside.
In embodiment, described a variator 22, utilized this variator can wash on the element in the past and transmit successive vibratory drive (for example sinusoidal motion) according to Fig. 8 so that this flushing element in the axial direction for example front and back move several millimeters respectively.
Self-evident, the gas bleed element must be arranged in the bottom or sidewall of an accessory metallurgical tank in a corresponding fire-resistant framework, and also will be like this in according to the embodiment of Fig. 7 and 8, thereby can guarantee to wash rotatablely moving and axial motion of element.The sidewall of metallurgical tank or the refractory materials of bottom are represented by Reference numeral 35 in Fig. 7 and 8.
Claims (12)
1. the refractory gas bleed element that is used for a metallurgical cupola well, this flushing element one thereon the first end of supply gas (E1) and one discharge thereon and have the section of following mutually (3,2,4,1) between the second end (E2) of gas:
A) at least one feed tube (5) is led among the described first end E1,
B) described feed tube (5) is led in one first gas distribution chamber (32);
C) a plurality of capillary channels (10) extend to one second gas distribution chamber (16) in the axial direction from first gas distribution chamber (32),
D) at least one gas passage (6) extends to the second end (E2) of gas bleed element from second gas distribution chamber,
E) capillary channel (10) has a flow cross respectively, this flow cross than the flow cross of the feed tube (5) of described at least one gas passage (6) on the second end (E2) to when young 50%.
2. by the described gas bleed element of claim 1, its first and second gas distribution chamber (32,16) has a cross section greater than the cross-sectional area sum of capillary channel (10) respectively.
3. by the described gas bleed element of claim 1, the feed tube (5) of wherein leading in first gas distribution chamber (32) has a length, and this length is greater than the axial distance between first end (E1) and first gas distribution chamber (32).
4. by the described gas bleed element of claim 3, wherein feed tube (5) is made of a kind of material, and this material melts when temperature is lower than a kind of temperature of pending metallurgical solution.
5. by the described gas bleed element of claim 3, wherein feed tube (5) places a kind of loose material (15).
6. by the described gas bleed element of claim 1, wherein capillary channel (10) has a flow cross respectively, this flow cross than in the flow cross of feed tube (5) on the first end (E1) or the gas passage (6) on the second end (E2) to when young 90%.
7. by the described gas bleed element of claim 1, wherein one, interconnected section (3,2,4,1) are separately positioned in the pipe of being made by steel or refractory ceramic material (14,12,17,9).
8. by the described gas bleed element of claim 1, wherein on the described gas passage (6) of the second end (E2), has a flow cross slit-shaped, leg-of-mutton or water droplet shape.
9. by the described gas bleed element of claim 1, it has a plurality of gas passages (6) on the second end (E2), and these gas passages extend between second gas distribution chamber (16) and the second end (E2) along a virtual straight line separated from each otherly.
10. by the described gas bleed element of claim 1, it has a circular cross section on its whole length.
11. by the described gas bleed element of claim 10, (E1 E2) reduces its cross section from first to the second end.
12. gas flushing device, it has a drive unit (M) that is used for the axial and/or rotatable motion of gas bleed element by each described gas bleed element in the claim 1 to 11 and.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2003106304 | 2003-03-06 | ||
| RU2003106304/02A RU2230796C1 (en) | 2003-03-06 | 2003-03-06 | Blow-off component of an aggregate for steel production or its heat finishing |
| PCT/EP2004/002153 WO2004079019A2 (en) | 2003-03-06 | 2004-03-04 | Gas bubbling element and corresponding gas bubbling system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1784500A CN1784500A (en) | 2006-06-07 |
| CN1784500B true CN1784500B (en) | 2010-07-21 |
Family
ID=32846840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2004800119871A Expired - Fee Related CN1784500B (en) | 2003-03-06 | 2004-03-04 | Gas bubbling element and corresponding gas flushing device |
Country Status (18)
| Country | Link |
|---|---|
| US (1) | US20080136070A1 (en) |
| EP (1) | EP1599610B1 (en) |
| JP (1) | JP2006519930A (en) |
| CN (1) | CN1784500B (en) |
| AT (1) | ATE362551T1 (en) |
| BR (1) | BRPI0408138A (en) |
| DE (1) | DE502004003839D1 (en) |
| EA (1) | EA007214B1 (en) |
| ES (1) | ES2286614T3 (en) |
| LV (1) | LV13402B (en) |
| MX (1) | MXPA05009482A (en) |
| NO (1) | NO20054181L (en) |
| PL (1) | PL1599610T3 (en) |
| PT (1) | PT1599610E (en) |
| RU (1) | RU2230796C1 (en) |
| UA (1) | UA83213C2 (en) |
| WO (1) | WO2004079019A2 (en) |
| ZA (1) | ZA200507094B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100371463C (en) * | 2005-07-22 | 2008-02-27 | 钢铁研究总院 | Combined-blowing converter bottom gas supply element blocking-preventing device and method |
| CN102041346B (en) * | 2010-12-28 | 2012-06-06 | 北京建龙重工集团有限公司 | Method for automatic bottom blowing control of converter |
| CN102274958B (en) * | 2011-08-16 | 2013-08-21 | 东北大学 | Frustum slit type anti-blocking ladle bottom-blown powder injection device |
| CN105087870B (en) * | 2015-08-31 | 2017-03-08 | 濮阳濮耐高温材料（集团）股份有限公司 | The preparation method of air blowing element, combined air blowing brick and combined air blowing brick |
| CN109182655A (en) * | 2018-10-23 | 2019-01-11 | 王子晨 | A kind of Air blowing stick for the low blow of liquid |
| RU2720413C1 (en) * | 2019-08-05 | 2020-04-29 | Закрытое акционерное общество "Ферро Балт Плюс" | Method for bottom blowing of liquid metal in ladle |
| RU2766401C1 (en) * | 2021-07-09 | 2022-03-15 | Акционерное общество "Ферро Балт Плюс" | Apparatus for bottom blowing of liquid metal with gas in a ladle |
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| US4539043A (en) * | 1982-03-29 | 1985-09-03 | Nippon Kokan Kabushiki Kaisha | Bottom-blown gas blowing nozzle |
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| US4944496A (en) * | 1987-04-10 | 1990-07-31 | Injectall Limited | Apparatus for injecting gas into high temperature liquids, e.g. molten metals |
| CN1056128A (en) * | 1990-04-24 | 1991-11-13 | 迪迪尔工厂股份公司 | Blowing device and the hollow brick and the air blowing brick that are used for it |
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| JPS4960004U (en) * | 1973-08-29 | 1974-05-27 | ||
| JPS58167716A (en) * | 1982-03-29 | 1983-10-04 | Nippon Kokan Kk <Nkk> | Nozzle for injection of gas and its manufacture |
| DE3441223A1 (en) * | 1984-11-10 | 1986-05-15 | Lichtenberg Feuerfest GmbH, 5200 Siegburg | Scavenging insert |
| JPS62250112A (en) * | 1986-04-23 | 1987-10-31 | Nippon Kokan Kk <Nkk> | Gas blowing plug |
| JPS6393814A (en) * | 1986-10-06 | 1988-04-25 | Nkk Corp | Bottom blowing nozzle |
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| JP3645588B2 (en) * | 1994-06-30 | 2005-05-11 | 黒崎播磨株式会社 | Refractories for gas injection with through holes |
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2003
- 2003-03-06 RU RU2003106304/02A patent/RU2230796C1/en not_active IP Right Cessation
-
2004
- 2004-03-04 AT AT04717036T patent/ATE362551T1/en not_active IP Right Cessation
- 2004-03-04 UA UAA200509349A patent/UA83213C2/en unknown
- 2004-03-04 EP EP04717036A patent/EP1599610B1/en not_active Expired - Lifetime
- 2004-03-04 DE DE502004003839T patent/DE502004003839D1/en not_active Expired - Lifetime
- 2004-03-04 WO PCT/EP2004/002153 patent/WO2004079019A2/en active Application Filing
- 2004-03-04 PL PL04717036T patent/PL1599610T3/en unknown
- 2004-03-04 CN CN2004800119871A patent/CN1784500B/en not_active Expired - Fee Related
- 2004-03-04 MX MXPA05009482A patent/MXPA05009482A/en active IP Right Grant
- 2004-03-04 BR BRPI0408138-2A patent/BRPI0408138A/en not_active Application Discontinuation
- 2004-03-04 EA EA200501351A patent/EA007214B1/en not_active IP Right Cessation
- 2004-03-04 US US10/547,861 patent/US20080136070A1/en not_active Abandoned
- 2004-03-04 PT PT04717036T patent/PT1599610E/en unknown
- 2004-03-04 JP JP2006504525A patent/JP2006519930A/en active Pending
- 2004-03-04 ES ES04717036T patent/ES2286614T3/en not_active Expired - Lifetime
-
2005
- 2005-09-05 ZA ZA200507094A patent/ZA200507094B/en unknown
- 2005-09-08 NO NO20054181A patent/NO20054181L/en not_active Application Discontinuation
- 2005-10-04 LV LVP-05-132A patent/LV13402B/en unknown
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| CN86104547A (en) * | 1985-08-02 | 1987-01-28 | 维尔纳·布尔巴赫 | The gas communication plug assembly method that is used for metallurgical tank |
| US4944496A (en) * | 1987-04-10 | 1990-07-31 | Injectall Limited | Apparatus for injecting gas into high temperature liquids, e.g. molten metals |
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Also Published As
| Publication number | Publication date |
|---|---|
| EA007214B1 (en) | 2006-08-25 |
| LV13402B (en) | 2006-04-20 |
| EA200501351A1 (en) | 2006-02-24 |
| ZA200507094B (en) | 2006-06-28 |
| PT1599610E (en) | 2007-06-21 |
| RU2230796C1 (en) | 2004-06-20 |
| MXPA05009482A (en) | 2006-03-10 |
| CN1784500A (en) | 2006-06-07 |
| EP1599610B1 (en) | 2007-05-16 |
| UA83213C2 (en) | 2008-06-25 |
| DE502004003839D1 (en) | 2007-06-28 |
| BRPI0408138A (en) | 2006-03-01 |
| ATE362551T1 (en) | 2007-06-15 |
| WO2004079019A3 (en) | 2004-11-11 |
| EP1599610A2 (en) | 2005-11-30 |
| JP2006519930A (en) | 2006-08-31 |
| NO20054181D0 (en) | 2005-09-08 |
| NO20054181L (en) | 2005-09-08 |
| WO2004079019A2 (en) | 2004-09-16 |
| ES2286614T3 (en) | 2007-12-01 |
| PL1599610T3 (en) | 2007-08-31 |
| US20080136070A1 (en) | 2008-06-12 |
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