CN100408957C - Smelting vessel for metal smelting with nozzle device and method for secondary metal smelting treatment - Google Patents
Smelting vessel for metal smelting with nozzle device and method for secondary metal smelting treatment Download PDFInfo
- Publication number
- CN100408957C CN100408957C CNB2003801030273A CN200380103027A CN100408957C CN 100408957 C CN100408957 C CN 100408957C CN B2003801030273 A CNB2003801030273 A CN B2003801030273A CN 200380103027 A CN200380103027 A CN 200380103027A CN 100408957 C CN100408957 C CN 100408957C
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- China
- Prior art keywords
- nozzle device
- outer tube
- spray nozzle
- melting container
- axially
- 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
Links
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 33
- 239000002184 metal Substances 0.000 title claims abstract description 33
- 238000003723 Smelting Methods 0.000 title abstract description 6
- 238000000034 method Methods 0.000 title abstract description 6
- 239000012530 fluid Substances 0.000 claims abstract description 3
- 239000007921 spray Substances 0.000 claims description 56
- 238000002844 melting Methods 0.000 claims description 35
- 230000008018 melting Effects 0.000 claims description 35
- 230000009970 fire resistant effect Effects 0.000 claims description 10
- 241001062472 Stokellia anisodon Species 0.000 claims description 8
- 239000000919 ceramic Substances 0.000 claims description 4
- 239000012791 sliding layer Substances 0.000 claims description 4
- 239000011214 refractory ceramic Substances 0.000 abstract 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 8
- 239000001301 oxygen Substances 0.000 description 8
- 229910052760 oxygen Inorganic materials 0.000 description 8
- 239000007789 gas Substances 0.000 description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 210000002686 mushroom body Anatomy 0.000 description 5
- 150000002739 metals Chemical group 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005272 metallurgy Methods 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000003923 scrap metal Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
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- 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
- C21C5/52—Manufacture of steel in electric furnaces
- C21C5/5211—Manufacture of steel in electric furnaces in an alternating current [AC] electric arc furnace
- C21C5/5217—Manufacture of steel in electric furnaces in an alternating current [AC] electric arc furnace equipped with burners or devices for injecting gas, i.e. oxygen, or pulverulent materials into the furnace
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
- F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
- F27B3/22—Arrangements of air or gas supply devices
- F27B3/225—Oxygen blowing
-
- 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
- F27D3/16—Introducing a fluid jet or current into the charge
- F27D2003/162—Introducing a fluid jet or current into the charge the fluid being an oxidant or a fuel
- F27D2003/163—Introducing a fluid jet or current into the charge the fluid being an oxidant or a fuel the fluid being an oxidant
- F27D2003/164—Oxygen
-
- 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
- F27D2003/168—Introducing a fluid jet or current into the charge through a lance
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- General Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Furnace Charging Or Discharging (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The invention relates to a smelting vessel for metal smelting, comprising a refractory ceramic lining through which a nozzle device (20) for introducing a fluid extends into the metal melt, said nozzle device having the following features: a) a tubular, refractory ceramic outer sleeve (26), b) an outer tube (32) arranged coaxially in the outer sleeve (26), c) an inner tube (34) extending coaxially in the outer tube (32), d) at least one axially extending channel (38) being formed between the inner tube (34) and the outer tube (32) and the nozzle device e) being arranged axially movably back and forth and f) rotatably in a refractory ceramic lining, and a method for secondary metallurgical treatment.
Description
One aspect of the present invention relates to a kind of melting container of metal smelt, and wherein this definition comprises all containers, forms therein, processing and/or feeding molten metal.This melting container for example can be casting casting ladle, a SM stove (Siemens-Martin-Ofen) or an electric furnace.The invention still further relates to a kind of being used for carries out the method that secondary smelting is handled at a melting container that constitutes according to the present invention to molten metal.
For decades become known for gas and/or solid reactants and additive are joined a device in the metal smelt liquation.The meaning and the purpose of this processing are to change the physics and/or the chemical characteristic of liquation.
The gas spray hole (Gasspuelstein) of known so-called pottery for this reason, they are made of porous non-aligned or that aim at.Static passage passes the spray hole extension under the situation of aiming at, and spray hole is installed in the wall body or the inside, bottom of melting container.
Known in addition so-called spray nozzle device.Make by the fire-resistant outer tube of a pottery according to WO 93/09255 this device, in outer tube, extend two pipes that are provided with one heart mutually.This device accurately flatly is installed in the wall body the inside of metal smelt melting container.By a circumferential weld between interior pipe or interior pipe and the outer tube inorganic agent is input to the molten metal the inside.Two metal tubes can be in molten metal direction slide down under abrasion condition.Correspondingly prolong the life-span of this device.
The defective of known devices is that it is the aligning of accurate level always, because the outer tube of pottery and Guan Zaicong lateral process are for leaning loosely on the end of melting container on a pressure plare.A kind of layout of inclination will make pipe uncontrollably slide into liquation.
Verified according to the spray nozzle device of WO 93/09255 in addition is technology shape reliable and that formation is actual.But still there is the demand that continues, at the device of optimizing above-mentioned form aspect its life-span and the using method.
Summary of the invention
Based on above-mentioned background following design of the present invention is proposed:
The axial slip parts of described device (that is, especially wherein being provided with the outer tube of pipe) should constitute like this, make it not only can move axially on the direction of molten metal, and can move in the opposite direction.The inner end of described device protrudes in the refractory lining body of melting container usually.In other words: described spray nozzle device puts in the inside of melting container and puts in molten metal inside usually thus by its end of discharging side.Also exist the situation that liquation is discharged from the prior art.The danger that " tip " that put in the melting container inner chamber but that exist described spray nozzle device when loading scrap metal for example fractures.If described spray nozzle device before charging by correspondingly " being retracted ", and move to one it no longer protrude on the position of melting container inwall, just can this thing happens.
The structure member of described device needs a respective fixation part as described below or supporting member and guide for this reason.Described structure member also can be advantageously with a kind of material coating, and this material has the more wettability of pettiness with respect to molten metal.
A primary area of application of described spray nozzle device is that oxygen is input to the molten metal the inside.This point for example realizes by interior pipe.May partly reach and surpass 2000 degree at this at high temperature near the outside, contact site of molten metal.Consequently make spray nozzle device and adjacent refractory material rapid wearing.Therefore WO 93/09255 has advised, carries a kind of protective gas along the ring passage between the inner and outer pipes, and it surrounds oxygen according to the form of a concentric outer tube, and in the exit of spray nozzle device.Make the reaction zone of oxygen be moved into liquation inside simultaneously.This gas can be inert gas such as argon gas.But also can use a kind of refrigerating gas such as CH
4(methane).The reaction zone of oxygen and molten metal leaves the inwall of melting container durablely and makes around the position of spray nozzle device and cools off when corresponding through flow velocity.But may form one so-called " protection mushroom body " at this position.This relate to solidify steel, slag and impurity directly be deposited in around the spray nozzle device on the end of discharging side especially with the contact site of the refractory lining body inwall of melting container on.
This protection mushroom body can prevent that spray nozzle device from sliding into molten metal forward.Also may occur, because protection mushroom body ruptures lining body material with the mechanical anchor of the fire-resistant wall body of melting container with spray nozzle device on the one hand on the other hand when nozzle moves forward.All these effects are not expected.
Target according to solution of the present invention is that nozzle is rotatably moved in the lining body of melting container.Described support plate can separate with comparalive ease when shear stress occurring between support plate and lining body inwall.Can avoid the fracture of refractory material thus as much as possible.
The rotatory of described nozzle is especially relevant with the above-mentioned axially directed body of nozzle to have another very important advantage:
Inside described nozzle can obliquely, promptly especially be mounted obliquely within the furnace wall towards the liquation direction now.Nozzle is fixing in the outside can to make it no longer slide into liquation by making.But in such layout, cause uneven wearing and tearing (diametrically) on the end within it.Can rotate with a definite angle once in a while by the movable part that makes spray nozzle device now and compensate.Make less worn area place a position that has than galling.Needn't constantly whole nozzle unit axially be passed on the liquation direction at this.This point can be carried out afterwards.Obviously improve the life-span of spray nozzle device in a word thus.
The present invention also relates to the melting container of a metal smelt in its general embodiment, it has fire-resistant pottery lining body, and a spray nozzle device that is used for fluid is imported molten metal passes this lining body extension, and wherein this spray nozzle device has following feature:
-one tubular, fire-resistant ceramic coat pipe,
The outer tube of-one coaxial setting in outer tube,
-one in outer tube axially extending in the pipe,
-at least one axially extended passage of formation between interior pipe and outer tube.
This spray nozzle device also
-axially can be movably forward and backward and
-rotatably
Be arranged on the refractory lining body the inside of melting container.
In order to improve in rotation and sliding when passing spray nozzle device, an embodiment regulation is provided with sliding layer an of viscous between the outer tube of spray nozzle device and refractory lining body.This sliding layer not only must be made by a kind of material that contains lubricant, and must be resistant to elevated temperatures.The material that has confirmed graphite-based or molybdenum based mixtures is fit to.
Described outer tube can be provided with respect to outer tube with moving axially.Still can there be a sliding layer betwixt.
But described outer tube also can be bonding with outer tube or being connected of other form.Interior pipe can be connected by the interval body that does not hinder axial flow with outer tube.
Described spray nozzle device outwards protrudes in the refractory lining body usually, has enough length thus for repeatedly servo-actuated on the liquation direction of spray nozzle device.Can be easy to axially rotatably move at the above spray nozzle device of this part.Described for this reason spray nozzle device can for example extend along at least one axially extended sleeve.This sleeve can satisfy multiple function: on the one hand it produces a kind of axially directedly, and itself can easily be bearing on the outer wall of melting container for example on the other hand.For " retracting " spray nozzle device, one according to embodiments of the invention suggestions, constitute by at least one thickened portion that radially extends at the outside spray nozzle device position of extending of melting container.This thickened portion when retracting device just as a backstop.This thickened portion can be one the circle around flange.Described device can be taper type towards respective end portions equally.
As mentioned above, the fixing and guiding of described spray nozzle device can make spray nozzle device be provided with obliquely, wherein is positioned at following end and feeds the inner chamber of melting container and preferably be positioned at below the minute surface of liquation molten bath.When another (outside) end is positioned at this molten bath minute surface when above, defective nozzle device in the time of can advantageously preventing then that liquation from burning simultaneously.
Each movable part of described device is can be independently of each other movable, also will describe in detail as following.
Described melting container can carry out for example following secondary metals metallurgy:
-in described pipe with oxygen spirt liquation,
-import a kind of cooling fluid simultaneously along at least one passage between interior pipe and outer tube to oxygen,
-described spray nozzle device rotates once in a while and then also advances molten metal where necessary,
-described spray nozzle device moves forward once in a while and enters molten metal,
-when needed described spray nozzle device is pulled back, make it no longer protrude in the inner wall surface of metal smelt melting container,
-can then repeat one or more above-mentioned steps.
Further feature of the present invention is provided by the feature of dependent claims and other application documents.
Describe the present invention in detail by means of an embodiment below.But feature mentioned herein also goes for to realizing the present invention and carrying out other combination according to feature of the present invention.
At this sectional view, wherein in wall body, install one according to spray nozzle device of the present invention at an electric furnace wall body position shown in unique schematic diagram.
Described electric furnace wall body section 10 has an inner wall surface 10i and an outer wall surface 10a as can be seen.Described inner wall surface 10i favours vertical line and extends.Described outer wall surface 10a vertically extends.
Described wall body 10 is made of a kind of common refractory lining body.Have the fixing hole 22 of a fire-resistant pottery in body at this lining, it in the outside (22a) and inboard (22i) substantially concordant with the outer surface 10a or the inner surface 10i of wall body 10.
Have a hole 24 that tilts to extend in fixing hole 22, it tilts from outer surface 10a towards inner surface 10i.This hole is used to hold the fire-resistant ceramic coat pipe 26 of a tubulose.This outer tube 26 obviously is longer than the thickness of wall body 10, so this outer tube protrudes in wall body 10i and obviously protrudes in wall body 10a in the outside in the inboard.Between the corresponding section of fixing hole 22 and outer tube 26, add antiseize paste 28.
Insert an outer tube 32 in that outer tube 26 is inner, it has the length identical with outer tube 26.Be provided with in one in outer tube 32 and manage 34, it has same length.Described in the pipe 34 on circumference, have the space every pin 36.These in pin 36 is used to make, manage 34 with outer tube 32 coaxial and compartment of terrain is fixing constitutes circumferential welds 38 simultaneously between two pipes 34,32.In 10a outside, wall body surface, described spray nozzle device be arranged on one around sleeve 40 the insides, this spray nozzle device is by the structure member of mutual coaxial setting: outer tube 26, outer tube 32, interior pipe 34 are formed.Described sleeve 40 is made up of two and half housings and force closure ground is positioned on the outer tube 26.Described sleeve 40 moves on the bearing 42,44 of two spaces settings, and they are fixed on the frame 46,48 of wall body 10 outer surface 10a.Described sliding bearing 42,44 spray nozzle device axially on frame 46,48, move, so they can move on direction of arrow L1 and L2.
The external freedom end 20a of described spray nozzle device is taper type, that is, the diameter of outer tube 26 enlarges towards free end, pipe 34 in flexible oxygen hose 50 is transported to an oxygen there and flexible methane gas pipeline 52 is transported to circumferential weld 36 the insides with methane.
When molten metal also during heat size device the inside, liquation just is discharged from, described spray nozzle device 20 is in motion on the direction of arrow L 2 and move to till it no longer protrudes in inner surface 10i.Described spray nozzle device no longer puts in melting container and no longer may fracture when for example then reprinting steel scrap.In case furnace chamber is full of liquation, just, for example be fed into the most advanced and sophisticated inner surface 10i about 50 of surpassing to 250mm with nozzle feeding on direction of arrow L1 (and by passing bearing 42,44).
Can begin the processing that secondary metals are smelted now.This point is for example similar with the prior art of describing in WO93/09255.
Can form a so-called protection mushroom body at the inner surface 10i place of next-door neighbour's spray nozzle device 20, it is by Reference numeral 60 expressions.Described in this case spray nozzle device 20 rotates for example angles of 5,10 or 30 degree by activating swivel bearing 42,44, and wherein said protection mushroom body breaks away from inner surface 10i.Then can make the feeding on direction of arrow L1 integratedly of whole spray nozzle device 20.Reach a similar effects by reducing the cooling agent input.
Later on the most advanced and sophisticated 20s at spray nozzle device wear profile may appear in a period of time, as shown in the figure.Described in this case spray nozzle device 20 Rotate 180 degree (by means of bearing 42,44) are up to adjusting to the wear profile that dotted line is in the accompanying drawings represented.Can also continue to move for a long time at the described device in this position, and needn't servo-actuated on direction of arrow L1.
The end 20a of described spray nozzle device 20 is positioned at the full state (molten bath minute surface) of molten metal S more than the X, and described end 20s is positioned at below the minute surface X of molten bath.
Described device 20 can put at an easy rate among the liquation S 150 or 300mm dark because it when needed (for example when filling containers) can pull back fully.
Described as mentioned above ceramic coat pipe can be connected with outer tube securely, but also can select to make this outer tube removable.Then or the overcoat tube and tube is moved together or pipe is moved with respect to fixing outer tube.
Claims (9)
1. the melting container of a metal smelt has a fire-resistant pottery lining body, and the spray nozzle device (20) of an importing fluid passes this pottery lining body and extends into molten metal, and this spray nozzle device has following feature:
A) tubular, a fire-resistant ceramic coat pipe (26),
B) outer tube (32) of a coaxial setting in outer tube (26),
C) one in outer tube (32) axially extending in the pipe (34),
D) between interior pipe (34) and outer tube (32), constitute at least one axially extended passage (38),
And this spray nozzle device
E) axially can be movably forward and backward and
F) rotatably
Be arranged on fire-resistant pottery lining body the inside.
2. melting container as claimed in claim 1 is characterized in that, between the outer tube (26) of spray nozzle device (20) and fire-resistant lining body and/or the sliding layer (30) that has a viscous between outer tube (32) and outer tube (26).
3. melting container as claimed in claim 1 is characterized in that, described outer tube (32) is connected securely with outer tube (26).
4. melting container as claimed in claim 1 is characterized in that, the spray nozzle device of described melting container (20) outwards protrudes in the refractory lining body and can axially rotatably move on these parts.
5. melting container as claimed in claim 1 is characterized in that, the part that protrudes in described refractory lining external body of spray nozzle device (20) moves along at least one axially extending sleeve (40).
6. melting container as claimed in claim 1 is characterized in that, the part that protrudes in described refractory lining external body of spray nozzle device (20) has at least one thickened portion that radially extends (20a).
7. melting container as claimed in claim 1 is characterized in that, the spray nozzle device of described melting container (20) is provided with obliquely, wherein is positioned at the inner chamber that following end (20s) puts in melting container.
8. melting container as claimed in claim 7 is characterized in that, describedly is positioned at that following end (20s) is extended and the other end (20a) extends more than the molten bath minute surface (X) at this below the molten bath minute surface (X) of a metal smelt liquation (S).
9. melting container as claimed in claim 1 is characterized in that, has a spray nozzle device (20), and its outer tube (26) can move independently of each other with outer tube (32) and interior pipe (34).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10252276.6 | 2002-11-11 | ||
| DE10252276A DE10252276C1 (en) | 2002-11-11 | 2002-11-11 | Metallurgical melting apparatus used as an electric furnace comprises a refractory ceramic lining through which extends a nozzle arrangement for introducing a fluid into a molten metal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1711455A CN1711455A (en) | 2005-12-21 |
| CN100408957C true CN100408957C (en) | 2008-08-06 |
Family
ID=28685404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003801030273A Expired - Fee Related CN100408957C (en) | 2002-11-11 | 2003-11-04 | Smelting vessel for metal smelting with nozzle device and method for secondary metal smelting treatment |
Country Status (11)
| Country | Link |
|---|---|
| CN (1) | CN100408957C (en) |
| AT (1) | AT501486B1 (en) |
| AU (1) | AU2003283346A1 (en) |
| CZ (1) | CZ299214B6 (en) |
| DE (1) | DE10252276C1 (en) |
| EA (1) | EA006910B1 (en) |
| LV (1) | LV13354B (en) |
| PL (1) | PL204031B1 (en) |
| TR (1) | TR200501409T2 (en) |
| UA (1) | UA80167C2 (en) |
| WO (1) | WO2004044511A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0134857A1 (en) * | 1982-08-30 | 1985-03-27 | Pennsylvania Engineering Corporation | Method for the fabrication of special steels in metallurgical vessels |
| CN86107834A (en) * | 1985-11-27 | 1987-05-27 | 新汉堡钢铁有限公司 | The method of cooling oxygen injection nozzles in the oxygen treatments applied of the pig iron or steel |
| WO1993009255A1 (en) * | 1991-11-06 | 1993-05-13 | Kortec Ag | Nozzle assembly for introducing fluids into a melt, and a method of operating the nozzle |
| CN1289035A (en) * | 2000-08-28 | 2001-03-28 | 宝山钢铁股份有限公司 | Pulsed coal spraying method and equipment |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2324086C3 (en) * | 1973-05-12 | 1985-05-09 | Eisenwerk-Gesellschaft Maximilianshütte mbH, 8458 Sulzbach-Rosenberg | Nozzle for introducing fresh gas |
| FR2388886A1 (en) * | 1977-04-25 | 1978-11-24 | Creusot Loire | Tuyere including an injector - enabling the supply of a protective agent and a flushing gas into a metal bath |
-
2002
- 2002-11-11 DE DE10252276A patent/DE10252276C1/en not_active Expired - Fee Related
-
2003
- 2003-04-11 UA UAA200505510A patent/UA80167C2/en unknown
- 2003-11-04 TR TR2005/01409T patent/TR200501409T2/en unknown
- 2003-11-04 CZ CZ20050257A patent/CZ299214B6/en not_active IP Right Cessation
- 2003-11-04 AT AT0925903A patent/AT501486B1/en not_active IP Right Cessation
- 2003-11-04 EA EA200500714A patent/EA006910B1/en not_active IP Right Cessation
- 2003-11-04 PL PL377177A patent/PL204031B1/en not_active IP Right Cessation
- 2003-11-04 WO PCT/EP2003/012273 patent/WO2004044511A1/en active IP Right Grant
- 2003-11-04 CN CNB2003801030273A patent/CN100408957C/en not_active Expired - Fee Related
- 2003-11-04 AU AU2003283346A patent/AU2003283346A1/en not_active Abandoned
-
2005
- 2005-04-29 LV LVP-05-53A patent/LV13354B/en unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0134857A1 (en) * | 1982-08-30 | 1985-03-27 | Pennsylvania Engineering Corporation | Method for the fabrication of special steels in metallurgical vessels |
| CN86107834A (en) * | 1985-11-27 | 1987-05-27 | 新汉堡钢铁有限公司 | The method of cooling oxygen injection nozzles in the oxygen treatments applied of the pig iron or steel |
| WO1993009255A1 (en) * | 1991-11-06 | 1993-05-13 | Kortec Ag | Nozzle assembly for introducing fluids into a melt, and a method of operating the nozzle |
| CN1289035A (en) * | 2000-08-28 | 2001-03-28 | 宝山钢铁股份有限公司 | Pulsed coal spraying method and equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| EA200500714A1 (en) | 2005-12-29 |
| AU2003283346A1 (en) | 2004-06-03 |
| TR200501409T2 (en) | 2005-09-21 |
| AT501486A5 (en) | 2006-09-15 |
| PL204031B1 (en) | 2009-12-31 |
| CN1711455A (en) | 2005-12-21 |
| CZ299214B6 (en) | 2008-05-21 |
| AT501486B1 (en) | 2006-09-15 |
| AU2003283346A8 (en) | 2004-06-03 |
| WO2004044511A1 (en) | 2004-05-27 |
| DE10252276C1 (en) | 2003-10-30 |
| LV13354B (en) | 2005-12-20 |
| CZ2005257A3 (en) | 2005-07-13 |
| EA006910B1 (en) | 2006-04-28 |
| PL377177A1 (en) | 2006-01-23 |
| UA80167C2 (en) | 2007-08-27 |
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Granted publication date: 20080806 Termination date: 20101104 |