CN107858479A - A kind of converter tapping vortex inhibitor - Google Patents
A kind of converter tapping vortex inhibitor Download PDFInfo
- Publication number
- CN107858479A CN107858479A CN201711384416.8A CN201711384416A CN107858479A CN 107858479 A CN107858479 A CN 107858479A CN 201711384416 A CN201711384416 A CN 201711384416A CN 107858479 A CN107858479 A CN 107858479A
- Authority
- CN
- China
- Prior art keywords
- converter
- pipeline
- ventilated element
- air chamber
- tapping
- 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.)
- Pending
Links
- 238000010079 rubber tapping Methods 0.000 title claims abstract description 38
- 239000003112 inhibitor Substances 0.000 title claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 23
- 239000010959 steel Substances 0.000 claims abstract description 23
- 239000011449 brick Substances 0.000 claims abstract description 17
- 239000007789 gas Substances 0.000 claims description 15
- 229910052751 metal Inorganic materials 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 13
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 229910052786 argon Inorganic materials 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 239000011819 refractory material Substances 0.000 claims description 3
- 239000002356 single layer Substances 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 241001417490 Sillaginidae Species 0.000 claims 1
- 239000002893 slag Substances 0.000 abstract description 10
- 229910045601 alloy Inorganic materials 0.000 abstract description 2
- 239000000956 alloy Substances 0.000 abstract description 2
- 230000003247 decreasing effect Effects 0.000 abstract description 2
- -1 flange Substances 0.000 abstract description 2
- 238000002347 injection Methods 0.000 abstract description 2
- 239000007924 injection Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 4
- 238000003723 Smelting Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- 229910000655 Killed steel Inorganic materials 0.000 description 1
- 241001062472 Stokellia anisodon Species 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
The invention discloses a kind of converter tapping vortex inhibitor, and it is made up of ventilated element, refractory brick, flange, air chamber, pipeline, installed in converter taphole region；Described air chamber one end is welded and fixed by flange and converter shell, and the other end is connected with pipeline；Described ventilated element is wrapped up by refractory brick, is extended to from air chamber inside converter.Apparatus of the present invention input gas by ventilated element and pipeline, gas enters in converter quickly forms disperse bubble at high temperature, and then destroy micro- whirlpool generation of tapping hole areas adjacent when the injection of steel circulation road molten steel passes through, vortex slag is greatly decreased, deoxidier, alloy consumption, lifting molten steel quality purpose are reduced so as to reach.
Description
Technical field
The invention belongs to field of iron and steel smelting, and in particular to a kind of converter tapping vortex inhibitor.
Background technology
Vortex is a kind of phenomenon common in daily life, it be fluid in flow process due to being flowed between adjacent each particle
Caused by speed is inconsistent, accumulates and amplify when countless micro- whirlpools, just turn into visible vortex.In BOF steelmaking shop, molten steel from
Converter is into ladle transfer process, and often a large amount of clinkers are involved in molten steel and enter ladle caused by vortex.
It is primarily present following problem：Converter tapping slag divides three phases, wherein about 20% occurs to start rank in tapping
Section, 45% appears in tapping process (vortex slag), and residue about 35% occurs in tapping ending phase.Current technology equipment is main
For tapping latter stage pushing off the slag design, it is impossible to effectively solve the problems, such as that tapping process is vortexed slag, cause dregginess in ladle big, cause
Rephosphorization of molten steel, yield of alloy reduction, steel inclusion increase, molten steel pollution, ladle dry slag, refractory consumption rate increase etc. be
Row problem.
The content of the invention
To solve the above problems, the invention provides a kind of converter tapping vortex inhibitor, simple in construction, user
Just, opening vortex generation of tapping can effectively be suppressed, so as to improve steel quality.
The concrete technical scheme of the present invention is as follows：A kind of converter tapping vortex inhibitor, it is by ventilated element, fire resisting
Brick, flange, air chamber, pipeline composition, installed in converter taphole region, described air chamber one end is welded by flange and converter shell
Fixation is connect, the other end is connected with pipeline；Described ventilated element is wrapped up by refractory brick, is extended to from air chamber inside converter.
7th, further, described ventilated element can be made up of single-layer metal pipe, double-deck circumferential weld metal tube or refractory material
Honeycomb pipeline, ventilated element aperture or circumferential weld gap are 0.1-50mm.
Further, when ventilated element selects metal tube, fire resisting inserts is filled between ventilated element and refractory brick.
Further, described pipeline can be metal hose, or hard tube, be determined according to ventilated element traffic demand.
Further, the gas of input determines according to specific steel grade of smelting in described pipeline, preferably argon gas or nitrogen.
Further, described flange is preferably metal material；Air chamber is preferably heat-resistance stainless steel.
Further, the quantity of described tapping vortex inhibitor can be one or more sets.
Compared with prior art, beneficial effects of the present invention are：
1) a kind of converter tapping vortex inhibitor of the present invention inputs gas by ventilated element, pipeline, and gas is in high temperature
Under quickly form disperse bubble, destroy steel circulation road whirlpool, vortex slag be greatly decreased, reduce deoxidier so as to reach, close
Gold consumption, lifting molten steel quality purpose；
2) apparatus of the present invention are easy for installation, easily operated, and operating cost is low, can promote the use of on a large scale.
Figure of description
Fig. 1 is the structural representation of apparatus of the present invention；
Fig. 2 is the fundamental diagram of apparatus of the present invention；
Fig. 3 is the installation diagram in apparatus of the present invention tapping hole region；
In figure：1st, converter, 2, molten steel, 3, bubble, 4, tapping hole region, 4-1 tapping hole brick cups, 4-2 tapping hole sleeve bricks, 4-
3 steel circulation roads, 5, vortex inhibitor, 5-1 ventilated elements, 5-2 filling fire resisting materials, 5-3 refractory brick, 5-4 converter shells, 5-
5 flanges, 5-6 air chambers, 5-7 pipelines.
Embodiment
The present invention is further described through with reference to Figure of description and embodiment.
Embodiment 1
As shown in figure 1, a kind of converter tapping vortex inhibitor of the present invention, it is by ventilated element 5-1, refractory brick 5-3, method
Blue 5-5, air chamber 5-6, pipeline 5-7 compositions, installed in converter taphole region；Air chamber 5-6 one end passes through flange 5-5 and Converter
Shell 5-4 is welded and fixed, and the other end is connected with pipeline 5-7；Ventilated element 5-1 is wrapped up by refractory brick 5-3, is extended to from air chamber 5-6
Inside converter 1.
Above-mentioned ventilated element 5-1 is mainly used in conveying gas into converter 1, can be single-layer metal pipe, double-deck circumferential weld
Honeycomb pipeline made of metal tube or refractory material, ventilated element 5-1 aperture or circumferential weld gap are 0.1-50mm.When ventilative member
When part 5-1 is tubular metal gas passage, it must use fire resisting inserts 5-2 to fill with refractory brick 5-3 fit-up gaps.
Above-mentioned pipeline 5-7 can be metal hose, or hard tube, true with specific reference to ventilated element 5-1 traffic demands
It is fixed.The gas of input determines according to specific steel grade of smelting in pipeline 5-7, it is generally preferable to is argon gas or nitrogen.
In order to preferably use the present apparatus, refractory brick 5-3 is preferably magnesium carbonaceous, according to actual condition, it is also possible to Qi Tacai
Matter；Flange 5-5 is preferably metal material；Air chamber 5-6 is preferably heat-resistance stainless steel, according to actual condition, it is also possible to other materials；
The service life of vortex inhibitor 5 can so be extended.
In actual use, present invention tapping vortex inhibitor 5 is arranged on the tapping hole region 4 of converter 1, by ventilative
Element 5-1 and pipeline 5-7 input gases, gas is inputted in converter 1 quickly forms disperse bubble 3 at high temperature, and then destroys steel
Micro- whirlpool generation when the injection of circulation road 4-3 molten steel passes through near tapping hole region 4, reduces molten steel 2 in transport process by stove
Slag is involved in ladle；On a block converter, as the case may be, tapping vortex inhibitor 5 can install one or more sets, tapping hole
Fig. 3 is shown in region assembling.
Embodiment 2
In conjunction with the embodiments 1, give a kind of 300 tons of bof converters tapping vortex inhibitor uses example.This implementation
Ventilated element 5-1 in example uses 310S high temperature resistant stainless steels, is circumferential weld shape gas passage；Aperture inside and outside circumferential weld shape gas passage
Respectively 20mm, 22mm, circumferential weld 2mm, it is filled out with refractory brick 5-3 fit-up gaps with magnesia 5-2 of the content of MgO more than 95.0%
Fill.
Refractory brick 5-3 in the present embodiment selects magnesium carbonaceous MT-14, thick 150mm；Flange 5-5 selects 310S high temperature resistants not
Rust steel material；Air chamber 5-6 selects 310S high temperature resistant stainless steels, internal diameter 50mm；Pipeline 5-7 selects metal hose, caliber 30mm, defeated
Enter for argon gas, flow 20m3/h.
Notable using apparatus of the present invention beneficial effect, converter tapping process slag amount is small, and ladle top slag thickness subtracts after tapping
Few more than 30mm；Just for steel-making water after LF refining, rephosphorization amount reduces 0.0020wt%, and steel quality improves；Smelt aluminum killed steel
When, the consumption of final deoxidizing aluminium can save 0.4kg/t molten steel.
More than, it is only preferable case study on implementation of the invention, but protection scope of the present invention is not limited thereto, and it is any to be familiar with
Those skilled in the art the invention discloses technical scope in, the change or replacement that can readily occur in should all be covered
Within protection scope of the present invention.Therefore, protection scope of the present invention should using protection domain that claim is defined as
It is accurate.
Claims (7)
1. a kind of converter tapping vortex inhibitor, it is characterized in that, it is by ventilated element (5-1), refractory brick (5-3), flange (5-
5), air chamber (5-6), pipeline (5-7) composition, installed in converter (1) tapping hole region (4)；Described air chamber (5-6) one end passes through
Flange (5-5) is welded and fixed with converter shell (5-4), and the other end is connected with pipeline (5-7)；Described ventilated element (5-1) by
Refractory brick (5-3) wraps up, and it is internal to extend to converter (1) from air chamber (5-6).
2. a kind of converter tapping vortex inhibitor according to claim 1, it is characterized in that, described ventilated element (5-
1) it can be single-layer metal pipe, double-deck circumferential weld metal tube or honeycomb pipeline, ventilated element aperture or circumferential weld made of refractory material
Gap is 0.1-50mm.
3. a kind of converter tapping vortex inhibitor according to claim any one of 1-2, it is characterized in that, work as ventilated element
When (5-1) selects metal tube, fire resisting inserts (5-2) is filled between ventilated element (5-1) and refractory brick (5-3).
4. a kind of converter tapping vortex inhibitor according to claim 1, it is characterized in that, described pipeline (5-7) can
Think metal hose, or hard tube, determined according to ventilated element (5-1) traffic demand.
5. a kind of converter tapping vortex inhibitor according to claim 1, it is characterized in that, in described pipeline (5-7)
The gas of input smelts steel grade decision, preferably argon gas or nitrogen according to specific.
6. a kind of converter tapping vortex inhibitor according to claim 1, it is characterized in that, described flange (5-5) is excellent
Elect metal material as；Air chamber (5-7) is preferably heat-resistance stainless steel.
7. a kind of converter tapping vortex inhibitor according to claim 1, it is characterized in that, described tapping vortex suppresses
The quantity of device (5) can be one or more sets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711384416.8A CN107858479A (en) | 2017-12-20 | 2017-12-20 | A kind of converter tapping vortex inhibitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711384416.8A CN107858479A (en) | 2017-12-20 | 2017-12-20 | A kind of converter tapping vortex inhibitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107858479A true CN107858479A (en) | 2018-03-30 |
Family
ID=61707282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711384416.8A Pending CN107858479A (en) | 2017-12-20 | 2017-12-20 | A kind of converter tapping vortex inhibitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107858479A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114807495A (en) * | 2022-04-29 | 2022-07-29 | 湖南华菱涟源钢铁有限公司 | Non-shielding free tapping method for converter |
| CN114807501A (en) * | 2022-04-29 | 2022-07-29 | 湖南华菱涟源钢铁有限公司 | Diffused air-blowing slag-stopping steel tapping hole of converter and using method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001303122A (en) * | 2000-04-20 | 2001-10-31 | Pohang Iron & Steel Co Ltd | Method for preventing flow-out of slag from converter and its device |
| CN1320708A (en) * | 2000-04-26 | 2001-11-07 | 浦项综合制铁株式会社 | Method and apparatus for convecter tapping capable of preventing slag from flowing off |
| CN1962885A (en) * | 2006-12-08 | 2007-05-16 | 邢台钢铁有限责任公司 | Air curtain skimming device for steel-making converter |
| CN205893313U (en) * | 2016-07-27 | 2017-01-18 | 山东钢铁股份有限公司 | Converter is with keeping off slag ball |
| CN106978519A (en) * | 2017-04-21 | 2017-07-25 | 东北大学 | A kind of method that blowing argon gas prevent whirlpool slag in ladle tapping process |
| CN207987278U (en) * | 2017-12-20 | 2018-10-19 | 马鞍山钢铁股份有限公司 | A kind of converter tapping vortex inhibitor |
-
2017
- 2017-12-20 CN CN201711384416.8A patent/CN107858479A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001303122A (en) * | 2000-04-20 | 2001-10-31 | Pohang Iron & Steel Co Ltd | Method for preventing flow-out of slag from converter and its device |
| CN1320708A (en) * | 2000-04-26 | 2001-11-07 | 浦项综合制铁株式会社 | Method and apparatus for convecter tapping capable of preventing slag from flowing off |
| CN1962885A (en) * | 2006-12-08 | 2007-05-16 | 邢台钢铁有限责任公司 | Air curtain skimming device for steel-making converter |
| CN205893313U (en) * | 2016-07-27 | 2017-01-18 | 山东钢铁股份有限公司 | Converter is with keeping off slag ball |
| CN106978519A (en) * | 2017-04-21 | 2017-07-25 | 东北大学 | A kind of method that blowing argon gas prevent whirlpool slag in ladle tapping process |
| CN207987278U (en) * | 2017-12-20 | 2018-10-19 | 马鞍山钢铁股份有限公司 | A kind of converter tapping vortex inhibitor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114807495A (en) * | 2022-04-29 | 2022-07-29 | 湖南华菱涟源钢铁有限公司 | Non-shielding free tapping method for converter |
| CN114807501A (en) * | 2022-04-29 | 2022-07-29 | 湖南华菱涟源钢铁有限公司 | Diffused air-blowing slag-stopping steel tapping hole of converter and using method thereof |
| CN114807501B (en) * | 2022-04-29 | 2023-11-17 | 湖南华菱涟源钢铁有限公司 | Converter diffuse type blowing slag-blocking steel tapping hole and application method thereof |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180330 |
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| RJ01 | Rejection of invention patent application after publication |