CN100365136C - Method and apparatus for delivering metallurgically improved molten metal - Google Patents
Method and apparatus for delivering metallurgically improved molten metal Download PDFInfo
- Publication number
- CN100365136C CN100365136C CNB008195439A CN00819543A CN100365136C CN 100365136 C CN100365136 C CN 100365136C CN B008195439 A CNB008195439 A CN B008195439A CN 00819543 A CN00819543 A CN 00819543A CN 100365136 C CN100365136 C CN 100365136C
- Authority
- CN
- China
- Prior art keywords
- casting ladle
- molten metal
- casting
- heat
- thermostabile bodies
- 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.)
- Expired - Fee Related
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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
- B22D43/00—Mechanical cleaning, e.g. skimming of molten metals
- B22D43/001—Retaining slag during pouring molten metal
- B22D43/002—Retaining slag during pouring molten metal by using floating means
-
- 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
- C21C5/4653—Tapholes; Opening or plugging thereof
-
- 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
- F27D3/15—Tapping equipment; Equipment for removing or retaining slag
- F27D3/1509—Tapping equipment
-
- 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
- F27D3/15—Tapping equipment; Equipment for removing or retaining slag
- F27D3/1545—Equipment for removing or retaining slag
- F27D3/159—Equipment for removing or retaining slag for retaining slag during the pouring of the metal or retaining metal during the pouring of the slag
Abstract
The present invention relates to a method and an apparatus for enhancing a metallurgical technology of molten metal, wherein the apparatus comprises a closed inner chamber (23) of a casting ladle, and the closed inner chamber (23) avoids the casting ladle being delivered to the middle technology (15) or a refining position from a manufacturing container, such as a furnace (13), or the heat loss in the process of treating and delivering the casting ladle to a receiving container, such as a funnel (17). The method comprises the steps that a heat-resistant body is led in the inner chamber (23) of the casting ladle, and has adjustable specific weight, wherein the ratio of steel ballast to a refractory material is reduced, and the specific weight of the steel ballast is less than that of buoyancy required by molten metal in the casting ladle and molten metal at a slag interface for supporting the heat-resistant body and is preferably higher than the specific weight required by the buoyancy in a slag layer for completely supporting the heat-resistant body. The method comprises: closing the casting ladle (22), for example, the casting ladle is closed by a cover (90) and the heat-resistant body is kept in the casting ladle until the molten metal is basically discharged from the casting ladle. The method preferably comprises the step of intermediate refining, for example, a balancing component is added in the casting ladle before the casting ladle is closed. In order to achieve the optimal specific weight, the ratio of the steel ballast to the refractory material can be adjusted according to other temperature-resistant and corrosion-resistant variations of the heat-resistant body, for example, high temperature-resistant aluminum oxide different from the material of heat-resistant body is used as a higher temperature-resistant refractory material, high-temperature cement and a permeating inhibitor contaning carbon or silicic acid are added in the refractory material and the.
Description
Technical field
The present invention relates to a kind of at the method and apparatus that transmits and transmit raising molten metal composition metallurgical technology in the molten metal process.
Background technology
In traditional metal alloy was made, the predetermined material composition that will be used for making metal was introduced for example blast furnace such as top-blown oxygen converter and electric arc furnace, carried out follow-up in order to form the liquefaction and the hybrid technique of casting of metals liquation in stove.The slag layer that comprises impurity and catalyzer is positioned at the top layer of molten metal, and molten metal flows into casting ladle then, to send into next Working position or another producing apparatus, rolls or the plate rolling plant as band.Molten metal flows into container such as the funnel from casting ladle in producing apparatus.Working position can provide thermal source, so that casting liquid still remains liquid mixture when arriving Working position, loses but have simultaneously in the casting ladle of sizable heat open-top from above.
In avoiding the problem of power loss, have been found that molten metal is delivered to processing units and seals casting ladle the course of processing from stove is effective.In addition, another nearest innovation improves the metallurgical composition of casting liquid by the metallurgical technology that improves slag layer or molten metal.Simultaneously, keep in the casting ladle heat or improve calorific loss in the casting ladle.Unfortunately, although be sent to the process of Working position or production unit from blast furnace at molten metal, in comprising between extended period of heating and the heat processing condition that are difficult to arrive, described casting ladle sealing can be brought metallurgy, improvement, existing casting control techniques successfully is used in the existing container.
For example, the technology in the casting of casting ladle inner control liquation of previously known as placing refractory stoppers and reduce nozzle with mechanical arm in the fixed stove, can not adopt in the casting ladle of sealing.And known U.S. Patent No. 4,601 at KoFFron, the thermostabile bodies described in 415 can not use at the sealing casting ladle when molten metal in the casting ladle is arranged in the critical level of discharge nozzle top formation whirlpool.In addition, the design of the proportion of uniqueness made them be subjected to the buoyancy support in liquation when previous thermostabile bodies formed, and long-term exposure is under casting ladle, can rapid wearing, thus do not reach the predetermined action that they contact with molten metal and slag layer interface for a long time.
Summary of the invention
The present invention has overcome above-mentioned shortcoming, and it provides a kind of method and apparatus of lasting processing molten metal, and after improving technology, has improved the content that the quality of discharging is able to improved casting of metals liquid from casting ladle.In a word, the metallurgy processing that improves casting of metals combines with improving feeding, comprises to the casting of metals bag sealing, and particularly when refining just finishes, for example reaches the target equilibrium composition by adding equilibrium composition in casting ladle.This method comprises the thermostabile bodies of introducing special construction, makes casting of metals liquid keep better equilibrium composition, makes the thermostabile bodies in the casting ladle be retained to molten metal bath casting end.Described thermostabile bodies is formed by the uniform mixture of steel ballasting, refractory materials and infiltration inhibitor material, compares with refractory materials, and described infiltration inhibitor material has better effect to suppressing molten metal and slag in the casting ladle to the infiltration of thermostabile bodies.And the proportion of described thermostabile bodies supports that than molten metal buoyancy in the described casting ladle the required ratio of this thermostabile bodies is important little, and supports the required ratio of this thermostabile bodies important big than slag layer buoyancy in the casting ladle.The proportion of described thermostabile bodies is in the scope of 2.7-4.5, and described like this infiltration inhibitor material has improved the ability of the infiltration of described interior molten metal of thermostabile bodies opposing casting ladle and slag.The thermostabile bodies hold-time prolongs the whirlpool detainer that needs a special construction, comprise in the detainer one to small part be positioned at casting ladle and with the refractory body of its form fit, it has adjusted proportion, and the steel ballasting that adjusted proportion has is supported the ratio of required proportion less than the buoyancy of the molten metal in molten metal in the casting ladle and the slag interface to the ratio of refractory materials.In order better to correct the interface, ratio preferably is higher than the ratio of supporting the required proportion of thermostabile bodies in the slag layer fully.More preferably, thermostabile bodies comprises that also an infiltration inhibitor is damaged in molten metal in order to prevent thermostabile bodies.
Therefore, the invention provides a kind ofly can be exposed in the molten metal for a long time, in the slag or in the waste heat and non-damageable thermostabile bodies.Thermostabile bodies of the present invention provides quite blocky structure, and it can keep the complete of thermostabile bodies, blocks the slag control techniques of casting ladle and previously known or production with previous nothing and develops skill and compare, and it has reduced the whirlpool in the casting cycle.In addition, the casting ladle of capping has improved transfer mechanism and improved metallurgical manufacturing system, and it makes that the precision in the alloy manufacturing is higher, and manufacturing technology is improved, and use a large amount of high-quality metals, and the known manufacturing system of energy effciency ratio is higher.
Brief Description Of Drawings
Fig. 1 is the partial schematic diagram of metal worker skill equipment, comprises the sectional view of the employed transmission casting ladle of system;
Fig. 2 is the profile of casting ladle bottom, comprises the nozzle valve that a control molten metal flows out;
Fig. 3 is the amplification profile along 3-3 line among Fig. 2.
Embodiment
With reference to Fig. 1, a kind of metal manufacturing system 10, it comprises that 12, one of producing apparatuss transmit 14 and processing unitss 16 of machinery.Producing apparatus 12 can comprise top-blown oxygen converter, electric arc furnace or other alloy melting equipment.The raw material of making metal adds in the stove, is heated to fusing and its mixing is had the predetermined metal that needs composition to make.Although the quality of metal is consistent with raw material with specific composition in stove 13, the impurity in the component can cause processing units 16 will make used metal ingredient different with predetermined metal ingredient.Processing units 16 can be produced equipment in batches for finished product, for example be with rolling plant, it comprises a funnel that receives the molten metal that transmits, molten metal is banded, tabular or other shape, and processing units hardens for use in subsequently heating once more, shaping, punching press and other manufacturing procedure molten metal.Yet, complicacy, size and the function of producing apparatus 12 and 16 of processing unitss different are caused to need to use and are transmitted machinery 14 melt metal is unloaded and be sent to middle process position 15 or processing units 16 from producing apparatus 12, or between middle process position 15 and the processing units 16.
The present invention also is applicable to system 10, and wherein the middle process position 15, and secondary refining equipment for example can be between producing apparatus 12 and processing units 16.Usually, smelting furnace is produced all molten steel in specialized range of Chemical Composition and temperature, and molten steel flows into casting ladle and is transferred into casting refining furnace, stirring place, degassing place--everywhere all can be described as the middle process position--successively and is used to adjust the metallochemistry composition then.Chemical Composition and temperature are adjusted more accurately, and scope is narrower, to reach the requirement of client's order to product hierarchy.Therefore, heat (casting liquid) the Chemical Composition scope of preferably at every turn producing from stove is basic identical.All different grades products carry out chemistry adjustment in refining furnace then.For example, add as Ca, Mn, Al, MgO, materials such as Si and carbide of calcium, blowing argon gas in molten steel heats once more with electrode or other type of heating, to improve degree up to specification.Middle process preferably occurs in to be introduced before the thermostabile bodies, because can not be limited in position on the discharge nozzle to thermostabile bodies by extraneous means.
Generally speaking, transmit machinery 14 and comprise a displacing device 18 that is used to transmit the molten metal load.In most preferred embodiment, displacing device 18 comprises a casting ladle 22, and it is supported by lifting machine 20 or other transportation equipments, also comprises the lifting machine 20 of the lid 90 that is used to lift by crane casting ladle 22.Usually, lifting machine 20 transmits casting ladles to producing apparatus 12 places, the casting liquid that the top 26 of opening casting ladle 22 gives off from other opening part of the stove 13 of nozzle or producing apparatus 12 with acceptance.Equally, casting ladle comprises a discharge nozzle 28, and it makes melts flow into funnel or other receiving vessel of processing units 16.Preferably, discharge nozzle 28 has a valve 30, and valve 30 responds mutually with controller 32.
As shown in Figure 2, stopping the mobile response can finish after detecting throttling by hydro-mechanical unit.For example, the piston 42 of hydro-cylinder 40 and conduction device 44 couplings, hydro-cylinder 40 engages with slider case 46.Slider case 46 comprises a Baltimore groove, and it supports the slider disc 48 that refractory materials is made.Slide in slider disc 48 adjacent chassis 50, chassis 50 is also made by refractory materials, and is supported between the brick shape metal device 52.Brick shape metal device 52 comprises four side upholders and the machinery that is connected with bolt 54 of support chassis, when brick shape metal device is installed on the casting ladle, bolt 54 is used to regulate the position of chassis 50 with respect to the nozzle insert, and the opening 58 in chassis opening 56 and the nozzle insert 60 point-blank like this.Chassis upholder 62 is installed or is welded on the casting ladle shell, and is meshed with slider disc mechanism 64, and slider disc mechanism 64 is bolted on the chassis upholder 62.
The open top 26 of casting ladle is by lid 90 sealings, and lid can or cover shell with refractory materials by refractory materials to be made.Lid 90 is supported and the location by lifting machine 24.Lid 90 can be placed or suspend in midair on the casting ladle, so that seal the interior thorax 23 of casting ladle between the top 26 of nozzle 28 that seals and opening.The lid that this interior thorax 23 that is used to seal casting ladle is preserved heat is a previously known.And, owing to preserve heat in the casting ladle, can be when transmitting the molten steel in the casting ladle be carried out adjustment aspect the metallurgical technology.Particularly, be placed at lid 90 before the open top 26 of casting ladle 22, other alloying element and catalyzer be introduced in the interior thorax 23, thereby carry out the concise of molten steel.Particularly, because slag layer continues to provide catalyzer and remove impurity from molten metal, avoided the intervention once more of impurity, the composition of thorax 23 interior molten metals can be maintained at the composition scope of designed alloy and compound in making.
Had better not when transmitting, adjust, but when casting ladle is in middle process position 15 or the secondary smelting stove, carry out.After the Chemical Composition of molten steel and temperature reached in the narrow target zone, casting ladle just left middle process position 15 or secondary smelting stove.Preferably all adjust and insert casting ladle again after finishing thermostabile bodies in that middle process position 15 or secondary smelting stove carry out.No matter middle process occurs in refining furnace, still in being transported to the process of producing stove, or in producing stove, all be preferably in before the top that lid 90 is placed on casting ladle, and be preferably in thermostabile bodies and finish middle process before getting involved.
The open top 26 of sealing casting ladle and the result of nozzle 28 are that interior thorax 23 is difficult to further be improved, thereby when needs discharging molten metal casting liquid, uses the whirlpool detainer to control the mixture of melting metal layer and slag layer.In addition, when casting ladle is sent to the target container 17 of processing units 16 by mechanical mechanism 24, can not uncap 90, a large amount of or all flow out until molten metal casting liquid.In some factories, when casting ladle almost flows empty later uncap again.Can be a basic emptying of casting ladle, the operation and another casting ladle that is full of substantially that is used to continue to cast is uncapped when not sealing as yet.
As a result, the whirlpool detainer is introduced the casting ladle of sealing and represented during diverse one, interior during this period thermostabile bodies is bigger with contacting of slag layer with molten metal, and these are different with known use.Different with the whirlpool detainer of previously known, the proportion of thermostabile bodies and resistivity against fire have all been adjusted to suitable degree in the casting step, and this casting step occurs in that casting ladle is filled and after sealing transmits for a long time.Casting preferably occurs in after the middle process.Although the time length scope of casting is 35-180 minute, thermostabile bodies must as 10 minutes, provide good performance in the final time of casting step.
Give one example, when the specific gravity range of thermostabile bodies is 4.8-5.2, slag layer separates 2-10 minute specific gravity range in the promptly common maintenance stove with melting metal layer, thermostabile bodies is invalid in sealing pouring ladle environment, wherein referred to molten metal from stop stove in 2-10 minute, at critical height formation whirlpool, arrive throttling or arrive other termination mode of use to stop the time of molten steel from the nozzle discharge.Therefore, the whirlpool detainer in the casting ladle environment several have been done to the contributive improvement of its life-span.Particularly, aluminum oxide (Al
2O
3) weight percent in remaining component has been increased to 70% from 45%, its content has been increased to high temperature range, and character also increases and keeps.In addition, the thermostabile bodies component with as the high-temperature cement of 1% to 2% weight percent mix for example calcium aluminium high-temperature cement, high strength cement or low water content cement.
In addition, the steel ballasting reduces the ratio of refractory materials, is about 3.7 thereby draw the proportion optimum value, and the fit value scope is roughly 2.7-4.5.In addition, preferably the infiltration inhibitor of being made by the particulate state carbonaceous material is joined in the refractory mix, contact destruction, erosion, burn into damage that is caused by its immersion and the quantity of peeling off for a long time with molten metal or slag to reduce thermostabile bodies.Yet the mineral compound that can also add other is as the antiseepage thing, preferably silicon, borosilicate and other glass.
Generally can use the refractory materials of more costliness,, but should avoid using as far as possible in order to be constrained to as MgO.In any case thermostabile bodies comprises the mixture of steel ballasting and refractory materials, and according to the heat-resisting whirlpool detainer of previously known, with thermostabile bodies than recast adjustment.Adjustment can comprise because the caused variation of target Chemical Composition of design for example can comprise Stainless Steel Wire, silicon-carbon, magnesium refractory materials, chromium refractory materials, zircon refractory material, zirconia refractory, tabular alumina refractory materials, mallite refractory materials etc.Adjust also by the block density of regulation and the mean lifetime decision of molten metal.The optimum life span of steel ballasting is every cubic feet of 300-400#, and optimum weight per-cent is 30% to 80% and the front discloses the weight percent of above-mentioned refractory materials between 30% to 80%.The tackiness agent of high-temperature cement should withstand 1000 high temperature at least, but preferably can bear the high temperature of 2400 -3300 and do not have essence and destroy, and optimum weight per-cent is 2% to 12%.
The steel ballasting has reduced the ratio of refractory materials, its proportion is less than the ratio of molten metal in the casting ladle and the slag required proportion of molten metal buoyancy support thermostabile bodies at the interface, but preferably proportion is higher than the ratio of supporting the required proportion of thermostabile bodies buoyancy in the slag layer fully.The result, the adjustment of proportion and thermotolerance (ability that in the liquid metal environment, supports and retain), even make thermostabile bodies being exposed to the shape that from the molten metal of stove to the sealing pouring ladle environment of receiving vessel transmission, still keeps work for a long time, can carry out the work of whirlpool detainer and throttling.Changing thermostabile bodies proportion makes thermostabile bodies not be adsorbed to discharge nozzle prematurely.
Although diagram and described an inventive embodiments does not attempt to illustrate and describe the example of the possible form of institute of the present invention.And words and phrases are interpreted as can doing different the change under the spirit and scope of the present invention situation not deviating from for not making restricted description words and phrases in the specification sheets.
Claims (8)
1. one kind is used at the lasting whirlpool detainer of handling molten metal of transport process, molten metal is transmitted by casting ladle (22), casting ladle (22) has opening, is located at the lid that can seal (90) on the described opening and is located at the interior discharge nozzle (28) of casting ladle (22), and described whirlpool detainer comprises:
Shape can be engaged in the interior thermostabile bodies of opening of described casting ladle;
Described thermostabile bodies is formed by at least a mixture in steel ballasting, refractory materials and carbonaceous particles material, silica and the silicate-based glasses; And
The proportion of described thermostabile bodies is in the scope of 2.7-4.5, and the described at least a ability that has improved the infiltration of described thermostabile bodies opposing interior molten metal of casting ladle (22) and slag in carbonaceous particles material, silica and the silicate-based glasses.
2. whirlpool detainer as claimed in claim 1, wherein, described refractory materials comprises at least a in refractory mortar and the aluminum oxide.
3. whirlpool detainer as claimed in claim 1 wherein, contains high-temperature adhesives in the described mixture.
4. a method of utilizing casting of metals bag (22) to improve casting of metals technology fills molten metal in the described casting of metals bag (22) and has discharge nozzle (28), and described method comprises:
Formation is by at least a thermostabile bodies that mixture constituted in steel ballasting, heat-stable material and carbonaceous particles material, silica and the silicate-based glasses, the proportion of described thermostabile bodies is in the scope of 2.7-4.5, and the described at least a ability that has improved the infiltration of described thermostabile bodies opposing interior molten metal of casting ladle (22) and slag in carbonaceous particles material, silica and the silicate-based glasses;
Described thermostabile bodies is inserted in the casting of metals bag;
With closed with covers casting of metals bag; With
Described thermostabile bodies is remained in the described casting ladle, discharge until molten metal.
5. method as claimed in claim 4 wherein, further is included in and carries out the middle process processing in the casting ladle.
6. method as claimed in claim 5, wherein, described middle process comprises the casting ladle refining.
7. method as claimed in claim 6, wherein, described refinement step is included in the capping step interior composition of balance casting ladle before.
8. method as claimed in claim 6, wherein, described refinement step comprises the degassing.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US2000/013621 WO2001088209A1 (en) | 2000-05-17 | 2000-05-17 | Method and apparatus for delivering metallurgically improved molten metal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1452666A CN1452666A (en) | 2003-10-29 |
| CN100365136C true CN100365136C (en) | 2008-01-30 |
Family
ID=21741393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB008195439A Expired - Fee Related CN100365136C (en) | 2000-05-17 | 2000-05-17 | Method and apparatus for delivering metallurgically improved molten metal |
Country Status (12)
| Country | Link |
|---|---|
| EP (1) | EP1287169B1 (en) |
| JP (1) | JP2003533355A (en) |
| CN (1) | CN100365136C (en) |
| AT (1) | ATE371751T1 (en) |
| AU (2) | AU4856000A (en) |
| BR (1) | BRPI0015873B1 (en) |
| CA (1) | CA2409520C (en) |
| DE (1) | DE60036228T2 (en) |
| ES (1) | ES2288856T3 (en) |
| TR (1) | TR200300213T2 (en) |
| TW (1) | TW555860B (en) |
| WO (1) | WO2001088209A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005024069A2 (en) * | 2003-08-29 | 2005-03-17 | Stopinc Aktiengesellschaft | Tapping device for a crucible, especially for a converter |
| WO2018114713A1 (en) * | 2016-12-19 | 2018-06-28 | Umicore Ag & Co.Kg | Bottom drain |
| CN113105561B (en) | 2021-04-30 | 2021-12-03 | 江南大学 | Preparation method and application of double-target fusion protein |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4854550A (en) * | 1986-11-13 | 1989-08-08 | Daussan Et Compagnie | Stopper for retaining slag and process for implementation and manufacture thereof |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4720803B1 (en) * | 1968-10-31 | 1972-06-13 | ||
| JPS604244B2 (en) * | 1977-09-10 | 1985-02-02 | 住友金属工業株式会社 | Manufacturing method of stopper for preventing slag outflow |
| US4471950A (en) * | 1982-10-22 | 1984-09-18 | Labate M D | Expandable, consumable stopper plug for steel making and handling vessels |
| JPS63180350A (en) * | 1987-01-22 | 1988-07-25 | Nkk Corp | Continuous casting method for molten steel |
| DE4025605A1 (en) * | 1990-08-13 | 1992-02-20 | Foseco Int | Automatic closing of molten metal container outlet - using ball of specific gravity between those of metal and slag |
| JP2530978Y2 (en) * | 1991-03-11 | 1997-04-02 | 大同特殊鋼株式会社 | Sliding gate of molten metal tapping equipment |
| JPH08267223A (en) * | 1995-03-28 | 1996-10-15 | Nisshin Steel Co Ltd | Method and device for preventing outflow of slag in ladle |
| JP3430360B2 (en) * | 1997-03-07 | 2003-07-28 | 黒崎播磨株式会社 | Porous plug for gas injection |
-
2000
- 2000-05-17 AU AU4856000A patent/AU4856000A/en active Pending
- 2000-05-17 TR TR2003/00213T patent/TR200300213T2/en unknown
- 2000-05-17 WO PCT/US2000/013621 patent/WO2001088209A1/en active IP Right Grant
- 2000-05-17 CA CA002409520A patent/CA2409520C/en not_active Expired - Lifetime
- 2000-05-17 DE DE60036228T patent/DE60036228T2/en not_active Expired - Lifetime
- 2000-05-17 CN CNB008195439A patent/CN100365136C/en not_active Expired - Fee Related
- 2000-05-17 AT AT00930801T patent/ATE371751T1/en active
- 2000-05-17 AU AU2000248560A patent/AU2000248560B2/en not_active Ceased
- 2000-05-17 EP EP00930801A patent/EP1287169B1/en not_active Expired - Lifetime
- 2000-05-17 ES ES00930801T patent/ES2288856T3/en not_active Expired - Lifetime
- 2000-05-17 JP JP2001584591A patent/JP2003533355A/en not_active Withdrawn
- 2000-05-17 BR BRPI0015873A patent/BRPI0015873B1/en not_active IP Right Cessation
-
2001
- 2001-05-16 TW TW090111759A patent/TW555860B/en not_active IP Right Cessation
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4854550A (en) * | 1986-11-13 | 1989-08-08 | Daussan Et Compagnie | Stopper for retaining slag and process for implementation and manufacture thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1287169B1 (en) | 2007-08-29 |
| JP2003533355A (en) | 2003-11-11 |
| DE60036228D1 (en) | 2007-10-11 |
| AU4856000A (en) | 2001-11-26 |
| BR0015873A (en) | 2003-08-19 |
| CN1452666A (en) | 2003-10-29 |
| AU2000248560B2 (en) | 2005-06-16 |
| CA2409520C (en) | 2008-11-25 |
| BRPI0015873B1 (en) | 2016-05-31 |
| CA2409520A1 (en) | 2001-11-22 |
| EP1287169A1 (en) | 2003-03-05 |
| ES2288856T3 (en) | 2008-02-01 |
| DE60036228T2 (en) | 2007-12-27 |
| TR200300213T2 (en) | 2003-09-22 |
| WO2001088209A1 (en) | 2001-11-22 |
| ATE371751T1 (en) | 2007-09-15 |
| TW555860B (en) | 2003-10-01 |
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