CN108707723A - Steel-making quick slag material and its production method - Google Patents
Steel-making quick slag material and its production method Download PDFInfo
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- CN108707723A CN108707723A CN201810327306.6A CN201810327306A CN108707723A CN 108707723 A CN108707723 A CN 108707723A CN 201810327306 A CN201810327306 A CN 201810327306A CN 108707723 A CN108707723 A CN 108707723A
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- 239000002893 slag Substances 0.000 title claims abstract description 133
- 239000000463 material Substances 0.000 title claims abstract description 108
- 238000009628 steelmaking Methods 0.000 title claims abstract description 49
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 44
- 239000010959 steel Substances 0.000 claims abstract description 44
- 238000005453 pelletization Methods 0.000 claims abstract description 15
- 238000007670 refining Methods 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 14
- 230000008569 process Effects 0.000 claims abstract description 10
- 238000012545 processing Methods 0.000 claims abstract description 5
- 238000013461 design Methods 0.000 claims abstract description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 19
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 19
- 239000003795 chemical substances by application Substances 0.000 claims description 19
- 239000004571 lime Substances 0.000 claims description 19
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 12
- 239000010439 graphite Substances 0.000 claims description 12
- 229910002804 graphite Inorganic materials 0.000 claims description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 8
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 claims description 7
- 239000011230 binding agent Substances 0.000 claims description 6
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims description 6
- 239000010436 fluorite Substances 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 239000000440 bentonite Substances 0.000 claims description 4
- 229910000278 bentonite Inorganic materials 0.000 claims description 4
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 4
- 239000004927 clay Substances 0.000 claims description 4
- 239000010459 dolomite Substances 0.000 claims description 4
- 229910000514 dolomite Inorganic materials 0.000 claims description 4
- 239000005997 Calcium carbide Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- CLZWAWBPWVRRGI-UHFFFAOYSA-N tert-butyl 2-[2-[2-[2-[bis[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]amino]-5-bromophenoxy]ethoxy]-4-methyl-n-[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]anilino]acetate Chemical compound CC1=CC=C(N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)C(OCCOC=2C(=CC=C(Br)C=2)N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)=C1 CLZWAWBPWVRRGI-UHFFFAOYSA-N 0.000 claims description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 2
- 239000011575 calcium Substances 0.000 claims description 2
- 229910052791 calcium Inorganic materials 0.000 claims description 2
- 229910052593 corundum Inorganic materials 0.000 claims description 2
- 229910052731 fluorine Inorganic materials 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 2
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 2
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 2
- 235000019353 potassium silicate Nutrition 0.000 claims 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims 2
- 229910052681 coesite Inorganic materials 0.000 claims 1
- 229910052906 cristobalite Inorganic materials 0.000 claims 1
- 239000000377 silicon dioxide Substances 0.000 claims 1
- 229910052682 stishovite Inorganic materials 0.000 claims 1
- 229910052905 tridymite Inorganic materials 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 11
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 10
- 239000004411 aluminium Substances 0.000 description 10
- 229910052782 aluminium Inorganic materials 0.000 description 10
- 239000000843 powder Substances 0.000 description 9
- 230000004048 modification Effects 0.000 description 7
- 238000012986 modification Methods 0.000 description 7
- 230000036632 reaction speed Effects 0.000 description 6
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 235000019738 Limestone Nutrition 0.000 description 4
- 238000003723 Smelting Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000006028 limestone Substances 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 239000002956 ash Substances 0.000 description 3
- 229910001570 bauxite Inorganic materials 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- 241001417490 Sillaginidae Species 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006477 desulfuration reaction Methods 0.000 description 2
- 230000023556 desulfurization Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 238000009491 slugging Methods 0.000 description 2
- 241001076960 Argon Species 0.000 description 1
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 1
- 229910001021 Ferroalloy Inorganic materials 0.000 description 1
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 235000013876 argon Nutrition 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- WETINTNJFLGREW-UHFFFAOYSA-N calcium;iron;tetrahydrate Chemical compound O.O.O.O.[Ca].[Fe].[Fe] WETINTNJFLGREW-UHFFFAOYSA-N 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000003756 stirring 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
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/076—Use of slags or fluxes as treating agents
-
- 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
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
The invention discloses a kind of steel-making quick slag material and its production methods, and for making steel the slag making in refining process, which includes slag making materials with quick slag material component, it also contains the expanding material for accounting for the slag making materials total weight 0.1~3.0%.Its production method, includes the following steps：1) slag making materials are uniformly mixed according to the weight ratio of design with expanding material, must be made steel with quick slag material coarse fodder；2) steel-making is subjected to pelletizing with quick slag material coarse fodder；3) processing is dried to pelletizing, you can obtain steel-making slag making materials.Using the slag material of the present invention under the premise of not increasing equipment investment, can react with steel or slag rapidly quick slag making, shorten the heat, reduce cost.
Description
Technical field
The invention belongs to metallurgical technology fields, specifically, belong in a kind of production process applied to steel material, improve
The steel-making of slag making efficiency quick slag material and its production method.
Background technology
In the metal smelts such as steel, it is necessary to which slag making has saying for " slag first being refined in steel-making, and good slag has gone out steel ", the ingredient of slag, property
Can, directly influence the quality of steel.It is that raw mineral materials produces that steel-making at present, which commonly uses slag making materials largely, after being calcined such as lime stone
The light dolomite that is generated after the lime of generation, dolomite calcination, fluorite, alumina, iron ore etc..Height when due to smelting
Temperature, these slag making materials are added with bulk.If it is powdery, then mistake can be blown by high temperature gas flow.Therefore, if it is powdery original
Material could be used for slag making after will suppressing balling-up with strength ball press.It is such as comprehensively utilized, is used using pulverized limestone pressure lime ball
Slagging agent, modification agent in liquid steel refining are formed with a variety of materials pressure ball.
Blocky and spherical slag making materials have that reaction speed is slow in smelting.Steel or slag with newly plus ball or
Then deblocking reaction is spread, reaction speed is greatly by the shadow of contact surface only on the surface of ball or block to the inside of ball or block
It rings and limits.And high-melting-point substances, then reaction are difficult to complete once being formed.If lime is added in slag, if surface forms height
The 2CaOSiO of fusing point2, modification agent containing metallic aluminium is added in ladle top slag, forms dystectic CaO2Al2O3、CaO·
6Al2O3, react and would become hard to go on.Before the present invention, in order to improve slag making reaction speed, the method commonly improved is to carry
High Gas Stirring intensity, with heated by electrodes, dust smelting etc., metallurgical effect can be directly affected in this way, but new set must be increased
Standby or modified technique and production cost greatly improved.
Invention content
The technical problem to be solved by the present invention is to provide a kind of steel-making quick slag material, do not increasing equipment investment
Under the premise of, can react with steel or slag rapidly quick slag making, shorten the heat, reduce cost.While the present invention also provides
The production method for making steel quick slag material.
In order to solve the above technical problems, the quick slag material of steel-making of the present invention, for making steel the slag making in refining process,
Its component includes slag making materials, is characterized in that：It, which also contains, accounts for the swollen of the slag making materials total weight 0.1~3.0%
Swollen material.
Preferably, the expanding material is expanded graphite.
Further, CaO, MgO, SiO are contained in the slag making materials2、Al2O3, F or Fe oxide in one kind or
A variety of chemical compositions.Further preferably, the slag making materials be calcium aluminate, calcium ferrite, lime, dolomite, fluorite, alumina,
One or several kinds in iron ore.
Further, slag making auxiliary material is also contained in the slag making materials, the slag making auxiliary material is metal alumina particles, steel
One or more of grain, silicon-carbide particle, calcium carbide particle.
It is also further, binder is also contained in the slag making materials, the binder is bentonite, clay, CMC, water
One or more of glass.
The production method for making steel quick slag material, includes the following steps：
1) according to the weight ratio of design by slag making materials and the expansion material for accounting for the slag making materials total weight 0.1~3.0%
Material is uniformly mixed, and obtains making steel quick slag material coarse fodder；
2) steel-making is subjected to pelletizing with quick slag material coarse fodder,
3) processing is dried to pelletizing, you can obtain steel-making slag making materials.
Preferably, pelletizing process described in step 2) includes strength pressure ball, disk pelletizing, squeezes pelletizing.In step 3, institute
It states and is dried temperature at 250 DEG C or less.
Present invention steel-making is with the principle of the selection of quick slag material component and manufacturing process：
The steel-making of the present invention is consistent with the main component of common slag making materials with quick slag material, to meet smelting requirements,
Its component is equipped with according to conventional slag making materials, can also include that binder, slag making auxiliary material etc. are assembled, special character
It is, it includes also expanding material, and expanding material is mainly expanded graphite, also referred to as acid processing graphite.It is added after expanding material,
When molten steel or slag is added, expanding material expanded by heating is rapid to rupture, and greatly improves slag making materials and molten steel or slag
Contact area, reaction speed increases substantially, and shortens and smelts or refining time, the reaction was complete for a variety of materials, thoroughly, improves
Utilization rate reduces cost.
Specific implementation mode
The quick slag material of steel-making and its production method of the present invention are made below in conjunction with specific embodiment further detailed
Description.
Embodiment 1
A kind of quick slag material of steel-making, each component percentage are：With 10% fluorite, 89% slug type aluminium
Sour calcium, 1% expanded graphite can be used as the Fast Slag Melting agent in steelmaking process.
When specific operation, molten steel is added lime, improves the basicity of slag before refining, is conducive to the desulfurization dephosphorization in refining
Removal is mingled with, but blocky lime is not easily dissolved in the slag of molten steel surface, and the steel-making that the present embodiment can be added at this time is used
Quick slag material is as slagging agent.Slagging agent before the present invention is generally fluorite, red bauxite, calcium aluminate pre-melted slag, these changes
Slag agent is also blocky, slag could be helped to dissolve lime after needing fuse itself, so slugging speed is very slow.Tradition improves slugging
There are two types of ways for speed：One, increase Argon amount, make the fierce turnup impact of molten steel slag；Two, with heated by electrodes, slag temperature is improved
Degree, but all cost is higher, it is complicated for operation.And the quick slag material of steel-making of the present embodiment is used, it can be in 180 tons of molten steel LF stove essences
When refining, after 500kg lime is added, the steel-making that 140kg the present embodiment is added at once uses quick slag material as slagging agent, about
2.5min lime, which dissolves, to be finished, and saves 1.0~1.5min of time than common slagging agent, and do not need heated by electrodes.
Embodiment 2
The quick slag material of steel-making in embodiment 1 is used for Argon station.500kg stones are added in 180 tons of molten steel ar blowing refinings
After ash, the steel-making that 1 formula of 150kg embodiments is added at once uses quick slag material as Fast Slag Melting agent, and about 0.5min lime is molten
Change finishes.500kg lime is added, about 1.0min, which dissolves, to be finished.Than using existing conventional slag making materials save the time 1.0~
2.0min。
Embodiment 3
A kind of quick slag material of steel-making, each component percentage are：10% fluorite, 45% powdery stone
Ash (pulverized powder or little particle are broken in lime production and transportational process), 43.5% calcined bauxite in powder, 1.5% expanded graphite.It can make
For the refining slag in refining process.
Common refining slag is sintering or pre-melted type before the present invention, i.e., is uniformly mixed agstone and bauxite powder
Afterwards, it melts or is sintered under 1400~1700 DEG C of high temperature in electric furnace or rotary kiln, form uniform calcium aluminate, fusing point is low.For
When liquid steel refining, slag making speed is fast, and desulphurizing ability is strong.But it is of high cost.Using the present embodiment steel-making quick slag material when, will
The quick slag material of steel-making of 150kg the present embodiment formulas is added in 180 tons of molten steel Argons, and about 1.0min, which dissolves, to be finished.Than using
Existing routine slag making materials save 0.5~1.0min of time, and cost is greatly lowered.
Embodiment 4
A kind of quick slag material of steel-making, each component percentage are：Fritting calcium aluminate powder 40%, metallic aluminium
Powder 40%, metal abrasive grit 18%, expanded graphite 2%, density is more than 2.8g/cm after pressure ball3, can be used as in steel-making RH refining process
Efficient modification agent.
Because in certain refinery practices, also to make iron oxide (Fe in raw steel slag2O3, FeO, MnO) reduction, enable slag
Enough depth desulfurization avoid polluting molten steel in casting process.Modification agent before the present invention is usually with sintering or preliminary melting type calcium aluminate
Powder uses after being incorporated a certain amount of metallic aluminium powder pressure ball, common are " 40Al ", " 25Al " (is indicated containing 40%, 25%
Metallic aluminium).The problem is that：Metallic aluminium generates aluminium oxide after being reacted with iron oxide, it is high that aluminium oxide reacts generation with calcium aluminate
The CaOAl of fusing point2O3(1590 DEG C of fusing point), CaO2Al2O3(1775 DEG C of fusing point), CaO6Al2O3(1903 DEG C of fusing point), shape
At a floor height fusing point hard shell, slows down or prevent iron oxide and modify the metal reactive aluminum inside ball.And since density is low,
Many modification agent balls also float on slag surface after continuous casting with spherical, do not play the role of due.
Use quick slag material as efficient modification agent using the steel-making of the present embodiment, one of feature is that density is big, is added
When ladle, slag surface not being swum in instead of, is sunk in slag, metallic aluminium therein would not be reacted with the oxygen in air
And it loses；Feature second is that into disperseing rapidly under the action of expanded graphite after slag, metallic aluminium and iron oxide in slag are rapid
Reaction, will not be hindered by high-melting-point reaction product.So reaction speed is fast, metallic aluminium utilization rate is high, modification agent usage amount
20% or more is reduced, cost is reduced.
Embodiment 5
A kind of quick slag material of steel-making, each component percentage are：Pulverized limestone 99%, expanded graphite 1%,
It can be used as the rapid melting lime in steelmaking process.
Active lime is the most common slag making materials of steel-making.During its production and transportation, 20% stone is about generated
Ashes cannot be directly used to slag making.In order to utilize this part pulverized limestone, the method before the present invention is also strength pressure ball, but block
Shape active lime has been not easy to dissolve, the lime intensity higher after pressure ball, density bigger, is less susceptible to occur with other slag charges anti-
It answers.The quick slag material of steel-making of the present embodiment is added, when use expands rapidly, just greatlys improve its reaction speed.Lime
Solution time is shorter after ball solution time even specific activity lime accelerates fast slagging agent.
Embodiment 6
A kind of quick slag material of steel-making, each component percentage are：The metal abrasive grit recycled in slag
95%, bentonite 3%, expanded graphite 2%, strength pressure ball can be used as in steelmaking process and is quickly cooled down agent.
In refining process, liquid steel temperature is too high in ladle sometimes, cannot directly enter next production process, needs to use crane
It slings steel billet insertion molten steel to be cooled down, cooling velocity is slow.Using the quick slag material of steel-making of the present embodiment, i.e., with from slag
The steel grit of middle recycling adds a small amount of expanded graphite pressure ball, and molten steel is added from feed bin, because gravity and Breakthrough in inertia slag enter molten steel,
Expanded by heating, is dispersed into molten steel, and fusing heat absorption cools down rapidly molten steel.
Embodiment 7
A kind of quick slag material of steel-making, each component percentage are：Clay powder 30%, metallic aluminium or carbonization
Silicon, calcium carbide, various ferroalloy powders 68%, expanded graphite 2%, strength pressure ball.It can be used as the slag deoxidation in steelmaking process
Agent.
When it is implemented, the steel-making that the present embodiment is added in steelmaking process uses quick slag material as slag deoxidier, it can
Do not change or changing less the main component of slag, and can realize the oxidisability for quickly reducing slag, it is not dirty in rear process
Contaminate molten steel.
The above various embodiments makes steel the production method of quick slag material, includes the following steps：
1) slag making materials and expanding material are uniformly mixed according to the weight ratio of design, it is thick with quick slag material obtains steel-making
Material；
2) steel-making is made with quick slag material coarse fodder using strength pressure ball, disk pelletizing or extruding pelletizing process
Ball,
3) processing is dried at 250 DEG C or less to pelletizing, you can obtain steel-making slag making materials.
Claims (10)
1. a kind of quick slag material of steel-making, for making steel the slag making in refining process, component includes slag making materials, feature
It is：It also contains the expanding material for accounting for the slag making materials total weight 0.1~3.0%.
2. making steel quick slag material according to claim 1, it is characterised in that：The expanding material is expanded graphite.
3. the quick slag material of steel-making according to claim 1 or claim 2, it is characterised in that：In the slag making materials containing CaO,
MgO、SiO2、Al2O3, F or Fe oxide in one or more chemical compositions.
4. according to the quick slag material of the steel-making of claim 1,2 or 3, it is characterised in that：Contain in the slag making materials and makes
Slag auxiliary material, the slag making auxiliary material are one or more of metal alumina particles, steel particles, silicon-carbide particle, calcium carbide particle.
5. according to the quick slag material of the steel-making of claim 1,2 or 3, it is characterised in that：Containing viscous in the slag making materials
Agent is tied, the binder is one or more of bentonite, clay, CMC, waterglass.
6. making steel quick slag material according to claim 4, it is characterised in that：Contain binder in the slag making materials,
The binder is one or more of bentonite, clay, CMC, waterglass.
7. the quick slag material of steel-making according to claim 1 or claim 2, it is characterised in that：The slag making materials are calcium aluminate, iron
One or several kinds in sour calcium, lime, dolomite, fluorite, alumina, iron ore.
8. making steel the production method of quick slag material described in a kind of claim 1, include the following steps：
1) slag making materials are mixed with the expanding material for accounting for the slag making materials total weight 0.1~3.0% according to the weight ratio of design
It closes uniformly, obtains making steel quick slag material coarse fodder；
2) steel-making is subjected to pelletizing with quick slag material coarse fodder,
3) processing is dried to pelletizing, you can obtain steel-making slag making materials.
9. making steel the production method of quick slag material according to claim 8, it is characterised in that：Pelletizing described in step 2)
Method includes strength pressure ball, disk pelletizing, squeezes pelletizing.
10. making steel the production method of quick slag material according to claim 8, it is characterised in that：It is described dry in step 3
Dry treatment temperature is at 250 DEG C or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810327306.6A CN108707723A (en) | 2018-04-12 | 2018-04-12 | Steel-making quick slag material and its production method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810327306.6A CN108707723A (en) | 2018-04-12 | 2018-04-12 | Steel-making quick slag material and its production method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1786202A (en) * | 2005-12-16 | 2006-06-14 | 青岛森田金属有限公司 | Composite carbon containing pellet |
| CN101148687A (en) * | 2007-10-16 | 2008-03-26 | 攀枝花新钢钒股份有限公司 | Special slag modifier for vanadium-titanium-iron magnesium hydrate desulfurization |
| CN103468867A (en) * | 2013-09-26 | 2013-12-25 | 西宁特殊钢股份有限公司 | Efficient slag mixing agent suitable for sulfur-bearing steel smelting and preparing method thereof |
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2018
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