CN106282453A - A kind of method of sefstromite blast furnace process - Google Patents
A kind of method of sefstromite blast furnace process Download PDFInfo
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- CN106282453A CN106282453A CN201610791001.1A CN201610791001A CN106282453A CN 106282453 A CN106282453 A CN 106282453A CN 201610791001 A CN201610791001 A CN 201610791001A CN 106282453 A CN106282453 A CN 106282453A
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- 238000000034 method Methods 0.000 title claims abstract description 58
- 230000008569 process Effects 0.000 title claims abstract description 27
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 75
- 239000002893 slag Substances 0.000 claims abstract description 38
- 229910052742 iron Inorganic materials 0.000 claims abstract description 30
- GFNGCDBZVSLSFT-UHFFFAOYSA-N titanium vanadium Chemical compound [Ti].[V] GFNGCDBZVSLSFT-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000005245 sintering Methods 0.000 claims abstract description 13
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 10
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000000446 fuel Substances 0.000 claims abstract description 10
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 10
- 239000010703 silicon Substances 0.000 claims abstract description 10
- 230000004907 flux Effects 0.000 claims abstract description 9
- 239000008188 pellet Substances 0.000 claims abstract description 9
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 9
- 239000011593 sulfur Substances 0.000 claims abstract description 9
- 239000000571 coke Substances 0.000 claims abstract description 8
- 239000000470 constituent Substances 0.000 claims abstract description 5
- 239000002817 coal dust Substances 0.000 claims abstract description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 20
- 239000000843 powder Substances 0.000 claims description 13
- 239000002994 raw material Substances 0.000 claims description 12
- 239000012141 concentrate Substances 0.000 claims description 10
- 239000010436 fluorite Substances 0.000 claims description 10
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical group [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims description 8
- 230000003009 desulfurizing effect Effects 0.000 claims description 7
- 238000003723 Smelting Methods 0.000 claims description 6
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 235000019738 Limestone Nutrition 0.000 claims description 3
- 239000006004 Quartz sand Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 229910052593 corundum Inorganic materials 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims description 3
- 239000006028 limestone Substances 0.000 claims description 3
- UIIMBOGNXHQVGW-UHFFFAOYSA-M sodium bicarbonate Substances [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 3
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 3
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 3
- 239000012159 carrier gas Substances 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000007670 refining Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims 1
- 229910052720 vanadium Inorganic materials 0.000 abstract description 14
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 abstract description 14
- 239000010936 titanium Substances 0.000 abstract description 13
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 abstract description 8
- 229910052719 titanium Inorganic materials 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 241001417490 Sillaginidae Species 0.000 abstract 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 6
- 238000011084 recovery Methods 0.000 description 5
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 239000006104 solid solution Substances 0.000 description 4
- 229910001634 calcium fluoride Inorganic materials 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 239000000292 calcium oxide Substances 0.000 description 2
- 235000012255 calcium oxide Nutrition 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000001717 pathogenic effect Effects 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000254158 Lampyridae Species 0.000 description 1
- 229910020781 SixOy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 241001062472 Stokellia anisodon Species 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 1
- 239000003830 anthracite Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000002802 bituminous coal Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000016507 interphase Effects 0.000 description 1
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 description 1
- YDZQQRWRVYGNER-UHFFFAOYSA-N iron;titanium;trihydrate Chemical compound O.O.O.[Ti].[Fe] YDZQQRWRVYGNER-UHFFFAOYSA-N 0.000 description 1
- 239000003077 lignite Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 150000003609 titanium compounds Chemical class 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/008—Composition or distribution of the charge
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/04—Making slag of special composition
-
- 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
- C21C1/00—Refining of pig-iron; Cast iron
- C21C1/02—Dephosphorising or desulfurising
- C21C1/025—Agents used for dephosphorising or desulfurising
-
- 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
- C21C1/00—Refining of pig-iron; Cast iron
- C21C1/04—Removing impurities other than carbon, phosphorus or sulfur
-
- 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)
- Manufacturing & Machinery (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The present invention discloses a kind of method of sefstromite blast furnace process, and described method includes that allocating furnace charge into blast furnace smelts；Described furnace charge includes sefstromite, flux and fuel；Described sefstromite is made up of vanadium titanium sintering deposit, vanadium-titanium pellet and lump ore；Described fuel is made up of coke, nut coke and coal dust；It is calculated in mass percent, TiO in blast-furnace slag2Content is 14～28%, and Sulfur Content in Hot Iron constituent content is 0.25%～0.4%, and in molten iron, element silicon total content is 0.15%～0.4%.Described method is beneficial to vanadium, titanium recycles, and reduces blast furnace process cost.
Description
Technical field
The present invention relates to field technical field of blast furnace process, a kind of method being specifically related to sefstromite blast furnace process.
Background technology
Blast furnace process is the important step during iron and steel produces, and blast furnace smelting technology economic indicator is good, and technique is simple, produces
Amount is big, and labor productivity is high, and energy consumption is low, and the ferrum that this method produces still accounts for more than the 95% of World Iron total output, at present, along with
The supply of domestic common iron ore is nervous, and price the most gradually rises, and the common iron mine of a large amount of use will substantially increase ironmaking
Production cost.And sefstromite is a kind of based on ferrum, it is associated with the oxidation of the multiple rare high value metals such as vanadium, titanium simultaneously
Ore deposit, K2O、Na2The relatively common ore deposit of O, content of Pb&Zn is low, and China's sefstromite bed is widely distributed, rich reserves, reserves and opening
The amount of adopting occupies the 3rd of whole nation iron mine, proved reserves 98.3 hundred million tons.Therefore, sefstromite is national defence and high-tech industry development
Necessary strategic materials.
Carry out the comprehensive utilization of sefstromite resource, it is simply that will to the greatest extent may be used while effective extraction and application wherein ferrum element
The Appropriate application of its accompanying useful components can be realized.The smelting process that China uses is to be smelt the iron mine containing vanadium titanium through blast furnace to contain
Vanadium-containing molten iron, molten iron makes vanadium enter in slag through oxygen top-blown converter blowing.This method, on the one hand TiO in slag2Higher, and
As TiO in slag2Easily reduction generates Low-valent Titanium compound (such as, TiC, TiN and solid solution Ti (C, N) thereof), in blast furnace smelting
TiC, TiN and the solid solution Ti (C, N) thereof that can not melt under the conditions of refining are distributed in slag with superfine little granule with disperse state
In.Along with reducing degree gradually steps up, in slag, TiC, TiN and solid solution Ti (C, N) content thereof are continuously increased, and slag viscosity is gradually
Raise, as TiO in slag2When being reduced to a certain degree, slag viscosity will drastically raise, and mobility is deteriorated, and causes blast furnace slag
Ferrum regardless of, can not slag tap smoothly tap a blast furnace, the working of a furnace deteriorate, cause furnace condition disorder time serious.On the other hand, the silicon in molten iron can with add
Add agent generation oxidation reaction to generate various oxides and enter in slag, when vanadium is oxidized and generate V2O5When entering slag, inevitable
Diluted by the oxide of above-mentioned various elements, cause V in the vanadium slag of vanadium extraction by converter blowing2O5Content is low, thus affects the recovery of vanadium
Rate.
Summary of the invention
In view of this, a kind of method that the invention provides sefstromite blast furnace process, described method is beneficial to vanadium, titanium reclaims
Utilize, reduce blast furnace process cost.
For solving above technical problem, the technical scheme that the present invention provides is to provide the side of a kind of sefstromite blast furnace process
Method, described blast furnace process furnace charge includes sefstromite, flux and fuel；Described furnace charge includes sefstromite, flux and fuel；Institute
State sefstromite to be made up of vanadium titanium sintering deposit, vanadium-titanium pellet and lump ore；Described fuel is made up of coke, nut coke and coal dust；With
Mass percentage, TiO in blast-furnace slag2Content is 14～28%, and Sulfur Content in Hot Iron constituent content is 0.25%～0.4%, ferrum
In water, element silicon total content is 0.15%～0.4%.Preferably, being calculated in mass percent, described sefstromite includes described vanadium
Titanium sintering deposit 68%～83%, described vanadium-titanium pellet 15%～25% and described lump ore 2%～7%.
Preferably, being calculated in mass percent, described vanadium titanium sintering deposit is with v-ti magnetite concentrate powder 65～80% and non-vanadium titanium
Fine iron breeze 20～35% forms for raw material sintering.
Preferably, being calculated in mass percent, described vanadium-titanium pellet is with v-ti magnetite concentrate powder 80～95% and non-vanadium titanium
Fine iron breeze 5～20% roasting raw material roasting form.
Preferably, described lump ore is common bloodstone lump ore.
Preferably, the carrier gas of described fuel is compressed air, and described compressed-air actuated temperature is 10～25 DEG C, and pressure is
800～1200kPa.
Preferably, described flux is fluorite.
Preferably, described coal dust is made up of one or more in anthracite, lean coal, bituminous coal and brown coal.
Preferably, described method also include control blast furnace air temperature be 1120～1600 DEG C, blast furnace air quantity be 1300～
1600Nm3/ ton ferrum.
Preferably, described method also includes that controlling rich-oxygen of blast furnace amount is 20～50Nm3/ ton ferrum.
Preferably, described Sulfur Content in Hot Iron constituent content controls by adding desulfurizing agent in molten iron, is calculated in mass percent,
Described desulfurizing agent raw material is: quartz sand 40%～65%, quick lime 3%～8%, fluorite 20%～35%, NaHCO34%～
12%, Al2O34%～10%.
Preferably, in described molten iron, silicon content controls by adding desiliconization agent in molten iron, is calculated in mass percent,
Described desiliconization agent raw material is: sintering breeze 55%～75%, pulverized limestone 18%～35%, Fluorspar Powder 5%～10%.
The present invention uses the sefstromite of higher vanadium titanium elements content, improves vanadium titanium elements content in slag, beneficially vanadium,
Titanium recycles；By controlling molten iron temperature, blast furnace air quantity, pathogenic wind-warm, Rich Oxygen Amount, thus improve permeability of stock column difference and pressure reduction
High shortcoming, it is ensured that the timely uniform discharge of slag, it is to avoid because slag extends TiO at residing time in furnace2Cross reduction generate
TiC, TiN and solid solution Ti (C, N) thereof, avoid slag viscosity to raise the slag fluidity that causes simultaneously and be deteriorated, slag ferrum regardless of, from
And improve TiO in slag2The recovery of titanium in content, beneficially slag；By adding desulfurizing agent and desiliconization agent in molten iron, control ferrum
Element sulphur and the content of element silicon in water, thus reduce the recovery of vanadium in the oxide content of sulfur in slag, silicon, beneficially slag.
The present invention uses fluorite as flux, fluorite CaF2Ionization degree is big, the F ionized out-Ion damaged SixOy 2-Net
Shape structure and reduce the viscosity of titanium slag, improve slag fluidity, it is to avoid cupola well bonding enhances molten iron and separates with slag
Effect, the beneficially recovery of vanadium titanium in slag.Meanwhile, CaF2Enter slag and form eutectic material with other component, thus reduce
The melting temperature of slag；CaF2Also can increase the active force between high titanium slag particle and make on slag ferrum two fused solution interphase interface
Surface free energy is superfluous, thus decreases the contact area between slag and molten iron so that ferrum solution loss in slag subtracts
Few.
Compared with prior art, its detailed description is as follows for the application:
The present invention uses the sefstromite of higher vanadium titanium elements content, controls reaction condition, preferably flux, de-by adding
Sulfur agent, desiliconization agent control Sulfur Content in Hot Iron element, silicon content, improve vanadium titanium recovery rate in slag；In minimizing sefstromite
Ore deposit uses, and reduces blast furnace process cost.
Detailed description of the invention
In order to make those skilled in the art be more fully understood that technical scheme, below in conjunction with specific embodiment pair
The present invention is described in further detail
Embodiment 1～16
A kind of method that the invention provides sefstromite blast furnace process, described method is beneficial to vanadium, titanium recycles, and reduces
Blast furnace process cost.
A kind of method that the invention provides sefstromite blast furnace process, comprises the following steps: with v-ti magnetite concentrate powder
It is that raw material sinters vanadium titanium sintering deposit with non-sefstromite concentrate powder；Roast with v-ti magnetite concentrate powder and non-sefstromite concentrate powder for raw material
Burn vanadium-titanium pellet, the vanadium titanium sintering deposit obtained, the vanadium-titanium pellet that obtains are mixed with lump ore, obtains the vanadium of high vanadium Ti content
Ilmenite, is calculated in mass percent, and formula is shown in by table 1
Table 1
Quartz sand, quick lime, fluorite, NaHCO3With Al2O3Desulfurizing agent is prepared, to sinter breeze, pulverized limestone and firefly for raw material
Stone powder be raw material prepare desiliconization agent by, be calculated in mass percent, above-mentioned desulfurizing agent and desiliconization agent formula are as shown in table 2.
Table 2
The sefstromite of formula A～D and a certain amount of nut coke and coke agent stirring is added all by table 3 by mixing plant
Even, then by the furnace charge that stirs in transmission belt is transferred to blast furnace, the bottom of blast furnace is provided with air port and communicates with air stove,
Air stove uses preheating technique, in order to ensureing to send into the pathogenic wind-warm of blast furnace, air quantity reaches table 3 preset value；Meanwhile, compression sky is selected
Flux fluorite and pulverized coal injection, as carrier, are blown into blast furnace by gas, control compressed air temperature and pressure by table 3, blast oxygen-enriched sky
Gas, controls rich-oxygen of blast furnace amount by table 3, is additionally provided with tapping hole in the bottom in the air port of blast furnace, during tapping a blast furnace, controls molten iron temperature
Degree ＞ 1400 DEG C, is added desulfurizing agent and the desiliconization agent of formula 1～4 by table 3, and above-mentioned smelting condition is as shown in table 3.
Table 3
Being calculated in mass percent, above-mentioned smelting process produces Sulfur Content in Hot Iron element, silicon content, CaF in slag2、
TiO2, iron content as shown in table 4 below with total fuel ratio.
Table 4
Below it is only the preferred embodiment of the present invention, it is noted that it is right that above-mentioned preferred implementation is not construed as
The restriction of the present invention, protection scope of the present invention should be as the criterion with claim limited range.For the art
For those of ordinary skill, without departing from the spirit and scope of the present invention, it is also possible to make some improvements and modifications, these change
Enter and retouch and also should be regarded as protection scope of the present invention.
Claims (10)
1. the method for a sefstromite blast furnace process, it is characterised in that described method includes that furnace charge is allocated into blast furnace carries out smelting
Refining；Described furnace charge includes sefstromite, flux and fuel；Described sefstromite is by vanadium titanium sintering deposit, vanadium-titanium pellet and lump ore
Composition；Described fuel is made up of coke, nut coke and coal dust；It is calculated in mass percent, TiO in blast-furnace slag2Content be 14～
28%, Sulfur Content in Hot Iron constituent content is 0.25%～0.4%, and in molten iron, element silicon total content is 0.15%～0.4%.
The method of sefstromite blast furnace process the most according to claim 1, it is characterised in that be calculated in mass percent, described
Sefstromite include described vanadium titanium sintering deposit 68%～83%, described vanadium-titanium pellet 15%～25% and described lump ore 2%～
7%.
The method of sefstromite blast furnace process the most according to claim 1, it is characterised in that be calculated in mass percent, described
Vanadium titanium sintering deposit with v-ti magnetite concentrate powder 65～80% and non-sefstromite concentrate powder 20～35% form for raw material sintering.
The method of sefstromite blast furnace process the most according to claim 1, it is characterised in that be calculated in mass percent, described
Vanadium-titanium pellet with v-ti magnetite concentrate powder 80～95% and non-sefstromite concentrate powder 5～20% roasting raw material roasting form.
5. according to the method for claim 1 sefstromite blast furnace process, it is characterised in that the carrier gas of described fuel is compression sky
Gas, described compressed-air actuated temperature is 10～25 DEG C, and pressure is 800～1200kPa.
6. according to the method for claim 1 sefstromite blast furnace process, it is characterised in that described flux is fluorite.
7. according to the method for claim 1 sefstromite blast furnace process, it is characterised in that described method also includes controlling blast furnace wind
Temperature is 1120～1600 DEG C, and blast furnace air quantity is 1300～1600Nm3/ ton ferrum.
8. according to the method for claim 1 sefstromite blast furnace process, it is characterised in that it is rich that described method also includes controlling blast furnace
Oxygen amount is 20～50Nm3/ ton ferrum.
9. according to the method for claim 1 sefstromite blast furnace process, it is characterised in that described Sulfur Content in Hot Iron constituent content passes through
Adding desulfurizing agent in molten iron to control, be calculated in mass percent, described desulfurizing agent raw material is: quartz sand 40%～65%, calculogenesis
Ash 3%～8%, fluorite 20%～35%, NaHCO34%～12%, Al2O34%～10%.
10. according to the method for claim 1 sefstromite blast furnace process, it is characterised in that in described molten iron, silicon content leads to
Crossing and add desiliconization agent control in molten iron, be calculated in mass percent, described desiliconization agent raw material is: sintering breeze 55%～75%,
Pulverized limestone 18%～35%, Fluorspar Powder 5%～10%.
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Cited By (6)
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| CN107043836A (en) * | 2017-04-18 | 2017-08-15 | 王冰 | A kind of method of blast furnace ironmaking |
| CN107400744A (en) * | 2017-08-07 | 2017-11-28 | 攀钢集团攀枝花钢铁研究院有限公司 | A kind of smelting process of high chromium high-titanium iron ore stone |
| CN107586903A (en) * | 2017-09-29 | 2018-01-16 | 四川德胜集团钒钛有限公司 | A kind of blast furnace process furnace charge and blast furnace smelting method |
| CN108148939A (en) * | 2017-12-31 | 2018-06-12 | 新疆八钢铁股份有限公司 | Ou Yelu uses bottle coal coke and the iron smelting method of beans fuel structure |
| CN111635970A (en) * | 2020-06-12 | 2020-09-08 | 武钢集团昆明钢铁股份有限公司 | Intensified smelting method for titanium slag in blast furnace |
| CN112662826A (en) * | 2020-12-30 | 2021-04-16 | 黑龙江建龙钢铁有限公司 | Novel process for improving recovery rate of blast furnace vanadium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101096719A (en) * | 2006-06-29 | 2008-01-02 | 宝山钢铁股份有限公司 | Desilication technology for chromium-containing melted iron |
| CN103627850A (en) * | 2013-11-27 | 2014-03-12 | 攀钢集团研究院有限公司 | Desulphurization slag modifier for molten iron containing vanadium and titanium, preparation method of desulphurization slag modifier and desulphurization slag modifying method |
| CN104894313A (en) * | 2015-06-09 | 2015-09-09 | 攀钢集团攀枝花钢铁研究院有限公司 | Blast furnace smelting method for vanadium titano-magnetite |
-
2016
- 2016-08-31 CN CN201610791001.1A patent/CN106282453A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101096719A (en) * | 2006-06-29 | 2008-01-02 | 宝山钢铁股份有限公司 | Desilication technology for chromium-containing melted iron |
| CN103627850A (en) * | 2013-11-27 | 2014-03-12 | 攀钢集团研究院有限公司 | Desulphurization slag modifier for molten iron containing vanadium and titanium, preparation method of desulphurization slag modifier and desulphurization slag modifying method |
| CN104894313A (en) * | 2015-06-09 | 2015-09-09 | 攀钢集团攀枝花钢铁研究院有限公司 | Blast furnace smelting method for vanadium titano-magnetite |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107043836A (en) * | 2017-04-18 | 2017-08-15 | 王冰 | A kind of method of blast furnace ironmaking |
| CN107400744A (en) * | 2017-08-07 | 2017-11-28 | 攀钢集团攀枝花钢铁研究院有限公司 | A kind of smelting process of high chromium high-titanium iron ore stone |
| CN107586903A (en) * | 2017-09-29 | 2018-01-16 | 四川德胜集团钒钛有限公司 | A kind of blast furnace process furnace charge and blast furnace smelting method |
| CN108148939A (en) * | 2017-12-31 | 2018-06-12 | 新疆八钢铁股份有限公司 | Ou Yelu uses bottle coal coke and the iron smelting method of beans fuel structure |
| CN111635970A (en) * | 2020-06-12 | 2020-09-08 | 武钢集团昆明钢铁股份有限公司 | Intensified smelting method for titanium slag in blast furnace |
| CN111635970B (en) * | 2020-06-12 | 2022-02-11 | 武钢集团昆明钢铁股份有限公司 | Intensified smelting method for titanium slag in blast furnace |
| CN112662826A (en) * | 2020-12-30 | 2021-04-16 | 黑龙江建龙钢铁有限公司 | Novel process for improving recovery rate of blast furnace vanadium |
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