CN109266798A - The method that titanium carbonitride generates during reduction smelting vanadium-titanium magnetite by blast furnace - Google Patents
The method that titanium carbonitride generates during reduction smelting vanadium-titanium magnetite by blast furnace Download PDFInfo
- Publication number
- CN109266798A CN109266798A CN201811280765.XA CN201811280765A CN109266798A CN 109266798 A CN109266798 A CN 109266798A CN 201811280765 A CN201811280765 A CN 201811280765A CN 109266798 A CN109266798 A CN 109266798A
- Authority
- CN
- China
- Prior art keywords
- ore
- titaniferous
- layer
- titanium
- blast furnace
- 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.)
- Granted
Links
Classifications
-
- 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
Abstract
The present invention relates to the methods that titanium carbonitride during a kind of reduction smelting vanadium-titanium magnetite by blast furnace generates, and belong to technical field of blast furnace process.The present invention in process of production, when blast furnace material distribution, forms the alternatively layered distributed architecture of coke layer and ore layer；Ore layer is set as layer distributed structure according to Ti content difference, and at least one side of ore layer is set as not titaniferous or the low ore of titaniferous.The present invention reduces TiO by changing blast furnace material distribution mode2The chance directly contacted with coke reduces titanium carbonitride content in slag to reduce the generation of titanium carbonitride.In addition, change vanadium ilmenite concentrate enters furnace mode into the iron-stone of blast furnace, increase the quantity and ratio of not titaniferous or the low ore of titaniferous, the quantity and ratio of the high ore of titaniferous are reduced, is met in ore layer topmost with bottom all using the low ore of not titaniferous or titaniferous, to reduce TiO2It is created condition with the chance that coke directly contacts.
Description
Technical field
The present invention relates to the methods that titanium carbonitride during a kind of reduction smelting vanadium-titanium magnetite by blast furnace generates, and belong to blast furnace
Technical field of smelting.
Background technique
The high-titanium type vanadium-titanium magnetite of blast furnace process Panxi Diqu, TiO in slag2Content is more than 20%, the difficulty of blast furnace process
Degree is very big.High-titanium blast furnace slag desulphurizing ability is poor, melting temperature is high, but for blast furnace process, TiO in slag2It is also primary
At solid-state TiC, TiN and its solid solution Ti (C, N) that cannot be melted under the conditions of blast furnace process so as to cause clinker retrogradation, flowing
Property deteriorate be only restrict blast furnace process key factor.Therefore, carbon nitrogenizes during how reducing smelting vanadium-titanium magnetite by blast furnace
The generation of titanium, which is only, improves the horizontal key that smelting vanadium-titanium magnetite by blast furnace is smelted.
For a long time, blast furnace is smelted with vanadium-titanium magnitite sinter+vanadium-titanium pellet for main iron-bearing material, and titaniferous is not general
Example about 2%~8% shared by logical lump ore.According to result of study, in blast furnace ironmaking process, when furnace charge when having just enter into cohesive zone just
There is titanium carbonitride generation, titanium carbonitride content just reaches quite high level in slag when it leaves when cohesive zone starts drippage, reaches
To sometimes even over finishing slag level.The clinker of drippage is melted when entering Tuyere Raceway upper end, and titanium carbonitride content reaches
Maximum value.Slag is after Tuyere Raceway, and titanium carbonitride content is gradually decrease to finishing slag level in slag.But in air plane
Each Tuyere Raceway between, since oxygen gesture is low, titanium carbonitride not only be will not be oxidized in slag, in some instances it may even be possible to further increase.
From titanium carbonitride from the point of view of the process of blast furnace process, although the drip process time is not grown, clinker during soft melting dropping by
In TiO2Generation titanium carbonitride is directly contacted with coke to be inevitable.
Summary of the invention
It is nitrogenized the technical problems to be solved by the present invention are: providing carbon during a kind of reduction smelting vanadium-titanium magnetite by blast furnace
The method that titanium generates can effectively reduce the generation of furnace charge titanium carbonitride in softening, melting process.
To solve above-mentioned technical problem the technical scheme adopted by the invention is that: reduce smelting vanadium-titanium magnetite by blast furnace process
The method that middle titanium carbonitride generates when blast furnace material distribution, forms the alternatively layered point of coke layer and ore layer in process of production
Cloth structure；Ore layer is set as layer distributed structure according to Ti content difference, at least one side of ore layer be set as not titaniferous or
The low ore of titaniferous.
Further, ore layer is disposed as not titaniferous or the low ore of titaniferous in the contact surface with coke layer.
Further, ore layer includes sinter, pellet and lump ore；At least one side of ore layer is set as lump ore.
Further, ore layer includes sinter, pellet and lump ore；Ore layer is all provided in the contact surface with coke layer
It is set to lump ore.
Further, ore layer includes sinter, pellet and lump ore；Major part in vanadium ilmenite concentrate is with pellet
Form enters furnace, smaller portions enter furnace in a manner of sinter, and production obtains vanadium-titanium pellet and low titanium sinter in advance；When blast furnace cloth
When material, ore layer is disposed as not titaniferous or the low ore of titaniferous in the contact surface with coke layer, and titaniferous or titaniferous be not low at this
Ore refer to the mixture of low titanium sinter or lump ore or both.
Further, ore layer includes sinter, pellet and lump ore；Vanadium ilmenite concentrate is all entered in the form of pellet
Furnace is free of vanadium ilmenite concentrate in the raw material of sinter；Ore layer is disposed as not titaniferous in the contact surface with coke layer or titaniferous is low
Ore, titaniferous or the low ore of titaniferous do not refer to the mixture of sinter or lump ore or both at this.
The beneficial effects of the present invention are: reducing TiO by changing blast furnace material distribution mode2(vanadium-titanium pellet or the sintering of vanadium titanium
Mine) chance that is directly contacted with coke, from source that is, reducing furnace charge coke and TiO in softening, melting process2Directly connect
The chance of touching reduces titanium carbonitride content in slag to reduce the generation of titanium carbonitride.Into in the iron-stone of blast furnace, change
Become vanadium ilmenite concentrate enters furnace mode, increases the quantity and ratio of not titaniferous or the low ore of titaniferous, reduces the high ore of titaniferous
Quantity and ratio, meet in ore layer topmost with bottom all using the low ore of not titaniferous or titaniferous, to reduce TiO2
It is created condition with the chance that coke directly contacts.
Detailed description of the invention
Fig. 1 is the blast furnace material distribution schematic diagram in the present invention.
Marked in the figure: 1- coke layer, 2- ore layer, 21- not titaniferous or the low ore of titaniferous.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment the invention will be further described.
As shown in Figure 1, the present invention is in process of production, when blast furnace material distribution, the alternating of coke layer 1 and ore layer 2 is formed
Layer distributed structure；Ore layer 2 is set as layer distributed structure according to Ti content difference, and at least one side of ore layer 2 is set as
Not titaniferous or the low ore 21 of titaniferous.To be further reduced TiO2The chance directly contacted with coke, preferred arrangement are as follows: mine
Rock layers 2 are being disposed as not titaniferous or the low ore 21 of titaniferous with the contact surface of coke layer 1.
When it is implemented, when blast furnace material distribution, usually coke and ore by the batch can and distributor chute of furnace roof in turn
It is packed into State of Blast Furnace.As being first packed into coke in furnace by defined cloth angle by defined batch weight, after the completion of coke cloth
Ore is packed into furnace by defined cloth angle by defined batch weight again, ore layer 2 is distributed in above coke layer 1 at this time.When
When being again loaded into coke, coke layer 1 is covered in 2 surface of ore layer again.It loops back and forth like this, forms coke layer 1 and ore layer 2
Alternatively layered distribution, every coke charge charcoal are all sandwiched by two layers of ore, and every layer of ore is also sandwiched by two layers of coke.Elder generation's cloth mine when such as cloth
Cloth coke after stone will also form the state of same coke layer 1 and the distribution of 2 alternatively layered of ore layer.The present invention is in blast furnace cloth
When material, the measure taken is after the completion of the coke cloth, first in one layer of 1 surface cloth of coke layer not titaniferous or the low ore of titaniferous
21, the high ore of titaniferous is then just packed on this layer of ore；If not titaniferous or titaniferous it is low 21 quantity of ore it is enough
Or ratio is sufficiently large in raw material proportioning, it can one layer of cloth not titaniferous or the low ore 21 of titaniferous on the high ore of titaniferous again.
Such as not titaniferous or low 21 negligible amounts of ore of titaniferous, it cannot be guaranteed that it is bottom and be topmost all this ore in ore,
It can be initially charged with the high ore of titaniferous when being packed into ore, be reloaded into not titaniferous or the low ore 21 of titaniferous.No matter ore presses which kind of
In mode cloth furnace, it is ensured that at least one side (topmost or bottom or upper and lower surface) of ore layer 2 for not titaniferous or contains
The low ore 21 of titanium.Such as the TiO of sinter and pellet2Content is all higher, only lump ore not titaniferous, then in cloth by lump ore
It is distributed in the top or bottom of ore layer 2.When lump ore quantity is enough, then ore layer 2 is all provided in the contact surface with coke layer 1
It is set to lump ore.
Ore layer 2 generally includes sinter, pellet and lump ore；What the present invention changed vanadium ilmenite concentrate enters furnace mode, tool
Body are as follows:
The first embodiment are as follows: the major part in vanadium ilmenite concentrate enters furnace, smaller portions in the form of pellet to be sintered
Mine mode enters furnace, and production obtains vanadium-titanium pellet and low titanium sinter in advance；When blast furnace material distribution, ore layer 2 with coke layer 1
Contact surface be disposed as not titaniferous or the low ore 21 of titaniferous, titaniferous or the low ore 21 of titaniferous do not refer to that low titanium is sintered at this
The mixture of mine or lump ore or both.
Second of embodiment are as follows: ore layer 2 includes sinter, pellet and lump ore；Vanadium ilmenite concentrate is all with pellet
Form enters furnace, is free of vanadium ilmenite concentrate in the raw material of sinter；Ore layer 2 is disposed as not titaniferous in the contact surface with coke layer 1
Or the ore 21 that titaniferous is low, titaniferous or the low ore 21 of titaniferous do not refer to the mixing of sinter or lump ore or both at this
Object.
In this way, entering furnace schreyerite ratio in total (vanadium titano-magnetite total weight accounts for the ratio into furnace iron-bearing material total weight)
Under conditions of varying less, the quantity and ratio of not titaniferous or the low ore of titaniferous can be increased, reduce the number of the high ore of titaniferous
Amount and ratio meet in ore layer topmost with bottom all using the low ore of not titaniferous or titaniferous, to reduce TiO2With coke
The chance that charcoal directly contacts creates condition.
Embodiment 1: dischargeable capacity 1750m3Smelting schreyerite blast furnace, ore batch weight is 42.5 tons/batches, coke batch
Weight is 10 tons/batches.The composition of ore are as follows: sinter 70%+ pellet 25%+ natural lump ore 5%.Blast furnace is using simultaneously pot type without material
Clock cloth, coke and ore are all initially charged in the batch can above furnace roof, then press defined angle by distributor chute by batch can again
Degree and material speed are distributed in furnace.When ore is packed into batch can, only by 2.125 tons of loading batch cans of common lump ore.When coke cloth is complete
Cheng Hou starts to be packed into sinter and pellet in the originally batch can of dress coke.When ore starts cloth, first by conventional bar
Mine is distributed in above coke layer by normal cloth angle.After the completion of common lump ore cloth, then by regulation on this layer of lump ore
Angular distribution sinter and pellet, while being gradually packed into coke to cloth next time in the batch can for originally filling common lump ore
Material uses.By this principle cloth, common lump ore can be distributed in the bottom of ore layer, ore layer lower part is reduced and directly connect with coke
The chance of touching.
Embodiment 2: dischargeable capacity 1750m3Smelting schreyerite blast furnace, ore batch weight is 42.5 tons/batches, coke batch
Weight is 10 tons/batches.The composition of ore are as follows: sinter 70%+ pellet 25%+ natural lump ore 5%.Ore is being packed into batch can
When, first only by 29.75 tons of sinter and 10.625 tons of loading batch cans of pellet.After the completion of coke cloth, start in furnace
It is distributed into sinter and pellet, while being packed into 2.125 tons of common lump ore in the originally batch can of dress coke.When sinter and ball
After the completion of nodulizing cloth, start to be packed into common lump ore by defined angle and material speed, and in originally dress sinter and pellet
Batch can in be packed into coke.After the completion of common lump ore cloth, start to be distributed into coke, and in the batch can for originally filling common lump ore
It is packed into sinter and pellet.By this principle cloth, common lump ore can be distributed in the top of ore layer, reduce ore layer top
The chance directly contacted with coke.
Embodiment 3: dischargeable capacity 1750m3Smelting schreyerite blast furnace, ore batch weight is 42.5 tons/batches, coke batch
Weight is 10 tons/batches.Ratio by reducing vanadium ilmenite concentrate in sinter makes sinter TiO2Content reduces.Such as certain vanadium ilmenite concentrate master
Want chemical component are as follows: TFe 56%, SiO23.5%, CaO 0.47%, MgO 3.51%, Al2O33.6%, TiO2
10.20%.Chemical component can be produced using such vanadium ilmenite concentrate as iron-bearing material entirely are as follows: TFe 53.98%, SiO2
4.22%, CaO 1.90%, MgO 3.42%, Al2O33.63%, TiO29.83% vanadium-titanium pellet.Such vanadium ilmenite concentrate
Proportion be that 20%, other iron-bearing materials match when being 60% (it is 80% that iron-bearing material, which always matches), can produce chemical component
Are as follows: TFe 49.96%, SiO26.64%, CaO 15.56%, MgO 1.96%, Al2O32.29%, TiO22.49% it is low
Titanium sinter.Blast furnace ferrous raw material proportioning are as follows:+55% vanadium-titanium pellet of+3% lump ore of 42% low titanium sinter, iron-bearing material are comprehensive
Closing TFe is 51.93%, and wherein lump ore main component is TFe 42.0%, SiO225.0%, CaO 0.70%, MgO 1.2%,
Al2O30.60%.Entering furnace iron-bearing material structure by this, blast furnace slag dual alkalinity is 1.05, and chemical component is MgO 9.95%,
Al2O314.00%, TiO221.82%.It with this condition, is the generation for reducing titanium carbonitride in smelting process, in blast furnace cloth
1.275 tons (3%) common lump ore and 8.5 tons (20%) of low titanium sinter are packed into a batch can first when material.When another
After the completion of coke cloth in a batch can, the ore in the batch can equipped with lump ore and low titanium sinter is distributed in by defined angle
On coke layer, and the vanadium-titanium pellet of 23.375 tons (55%) is packed into the originally batch can of dress coke.When lump ore and first
After the completion of point low titanium sinter cloth, this 23.375 tons of (55%) vanadium titanium globes are distributed in lump ore and low by defined cloth angle
Titanium is sintered on ore bed, and remaining 9.35 tons of (22%) low titanium sintering is packed into the originally batch can of dress lump ore and low titanium sinter
Mine.After the completion of vanadium-titanium pellet cloth, this 9.35 tons of (22%) low titanium sinters are distributed on vanadium-titanium pellet, and original
It fills in the batch can of vanadium-titanium pellet and is packed into coke.It, can be by the mixture of common lump ore and low titanium sinter by this principle cloth
It is distributed in the top and bottom of ore layer simultaneously, reduces TiO in coke and titaniferous ore2Directly contact, and the vanadium of high titanium
Titanium pellet does not contact directly with coke, is especially in the softening melting process of iron-containing charge in this way in smelting process, carbon nitrogen
The generation chance and quantity for changing titanium will substantially reduce.When the slag forming constituents fusing drippage in iron-containing charge enters in the cupola well of lower part
When, the generation quantity of titanium carbonitride will substantially reduce in finishing slag, and the mobility of clinker improves.
Embodiment 4: dischargeable capacity 1750m3Smelting schreyerite blast furnace, ore batch weight is 42.5 tons/batches, coke batch
Weight is 10 tons/batches.Vanadium ilmenite concentrate is not used in sinter, sinter is practically free of TiO2, vanadium ilmenite concentrate is all with vanadium titanium globe
Mine form enters furnace.Such as vanadium ilmenite concentrate main chemical compositions are as follows: TFe 56%, SiO23.5%, CaO 0.47%, MgO
3.51%, Al2O33.6%, TiO210.20%.Vanadium ilmenite concentrate all enters furnace in the form of pellet, can with such vanadium ilmenite concentrate
To produce chemical component are as follows: TFe 53.39%, SiO24.40%, CaO 2.89%, MgO 3.39%, Al2O33.61%,
TiO29.72% vanadium-titanium pellet.Sinter is free of vanadium ilmenite concentrate, main chemical compositions are as follows: TFe 47.09%, SiO2
8.48%, CaO 18.93%, MgO 1.80%, Al2O32.57%.Blast furnace ferrous raw material proportioning is+2% piece of 30% sinter
+ 68% vanadium-titanium pellet of mine, the comprehensive TFe of iron-bearing material is 51.27%, and wherein lump ore main component is TFe 42.0%, SiO2
25.0%, CaO 0.70%, MgO 1.2%, Al2O30.60%.By this blast furnace feeding raw material mix, blast furnace slag dual alkalinity is
1.05, chemical component is MgO 10.13%, Al2O314.38%, TiO222.09%.With this condition, it was smelted to reduce
Titanium carbonitride generates in journey, and 0.85 ton (2%) common lump ore and 5.95 tons of sinters (14%) are packed into a batch can first.
After the completion of the coke cloth in another batch can, the ore in the batch can equipped with lump ore and sinter is pressed into defined angle cloth
Expect on coke layer, and is packed into 28.90 tons of vanadium-titanium pellet (68%) in the originally batch can of dress coke.When lump ore and part are burnt
After the completion of tying mine cloth, this 28.90 tons of (68%) vanadium titanium globes are distributed on lump ore and sintering ore bed by defined cloth angle,
And remaining 6.8 tons of (16%) sinter is packed into the originally batch can of dress lump ore and sinter.When vanadium-titanium pellet cloth is complete
This 6.8 tons of (16%) sinters are distributed on vanadium-titanium pellet by Cheng Hou, and are packed into coke in the originally batch can of dress pellet.
It, can be by common lump ore and the sinter of titaniferous is not distributed in the top and bottom of ore layer, base simultaneously by this principle cloth
Originally it can be contacted to avoid titaniferous ore with the direct of coke, the softening that iron-containing charge is especially in this way in smelting process melted
Cheng Zhong, the generation chance and quantity of titanium carbonitride will substantially reduce.When the slag forming constituents fusing drippage in iron-containing charge enters
When in the cupola well of lower part, the generation quantity of titanium carbonitride will be substantially reduced in finishing slag, and the mobility of clinker improves.
Claims (6)
1. reducing the method that titanium carbonitride during smelting vanadium-titanium magnetite by blast furnace generates, it is characterised in that: in process of production,
When blast furnace material distribution, the alternatively layered distributed architecture of coke layer (1) and ore layer (2) is formed；Ore layer (2) according to Ti content not
With being set as layer distributed structure, at least one side of ore layer (2) is set as not titaniferous or the low ore (21) of titaniferous.
2. reducing the method that titanium carbonitride during smelting vanadium-titanium magnetite by blast furnace generates as described in claim 1, feature
Be: ore layer (2) is being disposed as not titaniferous or the low ore (21) of titaniferous with the contact surface of coke layer (1).
3. reducing the method that titanium carbonitride during smelting vanadium-titanium magnetite by blast furnace generates as described in claim 1, feature
Be: ore layer (2) includes sinter, pellet and lump ore；At least one side of ore layer (2) is set as lump ore.
4. reducing the method that titanium carbonitride during smelting vanadium-titanium magnetite by blast furnace generates as claimed in claim 2, feature
Be: ore layer (2) includes sinter, pellet and lump ore；Ore layer (2) is disposed as in the contact surface with coke layer (1)
Lump ore.
5. reducing the method that titanium carbonitride during smelting vanadium-titanium magnetite by blast furnace generates as claimed in claim 2, feature
Be: ore layer (2) includes sinter, pellet and lump ore；Major part in vanadium ilmenite concentrate entered in the form of pellet furnace, compared with
Fraction enters furnace in a manner of sinter, and production obtains high titanium pellet and low titanium sinter in advance；When blast furnace material distribution, ore layer
(2) it is being disposed as not titaniferous or the low ore (21) of titaniferous with the contact surface of coke layer (1), titaniferous or titaniferous be not low at this
Ore (21) refers to the mixture of low titanium sinter or lump ore or both.
6. reducing the method that titanium carbonitride during smelting vanadium-titanium magnetite by blast furnace generates as claimed in claim 2, feature
Be: ore layer (2) includes sinter, pellet and lump ore；Vanadium ilmenite concentrate all enters furnace, the original of sinter in the form of pellet
Vanadium ilmenite concentrate is free of in material；Ore layer (2) is being disposed as not titaniferous or the low ore of titaniferous with the contact surface of coke layer (1)
(21), titaniferous or the low ore (21) of titaniferous do not refer to the mixture of sinter or lump ore or both at this.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811280765.XA CN109266798B (en) | 2018-10-30 | 2018-10-30 | Method for reducing generation of titanium carbonitride in process of smelting vanadium titano-magnetite by blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811280765.XA CN109266798B (en) | 2018-10-30 | 2018-10-30 | Method for reducing generation of titanium carbonitride in process of smelting vanadium titano-magnetite by blast furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109266798A true CN109266798A (en) | 2019-01-25 |
| CN109266798B CN109266798B (en) | 2021-01-26 |
Family
ID=65191664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811280765.XA Active CN109266798B (en) | 2018-10-30 | 2018-10-30 | Method for reducing generation of titanium carbonitride in process of smelting vanadium titano-magnetite by blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109266798B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112226560A (en) * | 2020-10-14 | 2021-01-15 | 中国恩菲工程技术有限公司 | Method for reducing content of titanium nitride and/or titanium carbide in slag |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010004491A (en) * | 1999-06-29 | 2001-01-15 | 이구택 | The formation method of Ti-Bear on weak point of hearth carbon brick by multiple injection of TiO2 powder at blast furnace tuyere |
| CN101275172A (en) * | 2007-03-30 | 2008-10-01 | 鞍钢股份有限公司 | Charging method for blast furnace burden |
| CN102220440A (en) * | 2011-05-26 | 2011-10-19 | 攀钢集团有限公司 | Vanadium-titanium magnetite blast furnace smelting method capable of improving vanadium yield |
| CN103820590A (en) * | 2014-02-11 | 2014-05-28 | 东北大学 | Ore and coke mixed blast furnace smelting method for vanadium-titanium magnetite ore |
| 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 |
| CN106591524A (en) * | 2017-02-14 | 2017-04-26 | 四川德胜集团钒钛有限公司 | Low-cost blast furnace smelting method |
-
2018
- 2018-10-30 CN CN201811280765.XA patent/CN109266798B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010004491A (en) * | 1999-06-29 | 2001-01-15 | 이구택 | The formation method of Ti-Bear on weak point of hearth carbon brick by multiple injection of TiO2 powder at blast furnace tuyere |
| CN101275172A (en) * | 2007-03-30 | 2008-10-01 | 鞍钢股份有限公司 | Charging method for blast furnace burden |
| CN102220440A (en) * | 2011-05-26 | 2011-10-19 | 攀钢集团有限公司 | Vanadium-titanium magnetite blast furnace smelting method capable of improving vanadium yield |
| CN103820590A (en) * | 2014-02-11 | 2014-05-28 | 东北大学 | Ore and coke mixed blast furnace smelting method for vanadium-titanium magnetite ore |
| 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 |
| CN106591524A (en) * | 2017-02-14 | 2017-04-26 | 四川德胜集团钒钛有限公司 | Low-cost blast furnace smelting method |
Non-Patent Citations (3)
| Title |
|---|
| 王筱留 等: "《钢铁冶金学（炼铁部分）》", 31 March 2004, 冶金工业出版社 * |
| 赵润恩 等: "《炼铁学（下册）》", 30 June 1958, 冶金工业出版社 * |
| 邓青宇: "钒钛磁铁矿高炉冶炼过程中碳氮化钛形成条件与调控机制研究", 《中国优秀硕士学位论文全文数据库》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112226560A (en) * | 2020-10-14 | 2021-01-15 | 中国恩菲工程技术有限公司 | Method for reducing content of titanium nitride and/or titanium carbide in slag |
| CN112226560B (en) * | 2020-10-14 | 2022-05-20 | 中国恩菲工程技术有限公司 | Method for reducing content of titanium nitride and/or titanium carbide in slag |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109266798B (en) | 2021-01-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100596310C (en) | High titan type high alkalinity sinter and method for preparing same | |
| CN108998606B (en) | The blast furnace ferrous burden structure that a kind of pellet and Metallurgical Properties of Sinter are distributed rationally | |
| CN101665871A (en) | Method for producing titanium carbide slag | |
| CN101928823A (en) | Sintering method of iron ore powder with high content of crystal water | |
| CN108950112A (en) | The method of full vanadium titano-magnetite blast furnace ironmaking | |
| CN105803141A (en) | High-chrome vanadium-titanium magnetite blast furnace smelting charging material and blast furnace smelting method | |
| CN104372127A (en) | Method for improving furnace maintenance efficiency of blast furnace | |
| CN106282453A (en) | A kind of method of sefstromite blast furnace process | |
| CN104152614B (en) | The distributing process of blast furnace burden | |
| CN109266798A (en) | The method that titanium carbonitride generates during reduction smelting vanadium-titanium magnetite by blast furnace | |
| JP5428534B2 (en) | Pig iron production method using high zinc content iron ore | |
| CN107586903A (en) | A kind of blast furnace process furnace charge and blast furnace smelting method | |
| CN104988267B (en) | A kind of continuous direct steelmaking method of Electromagnetic Heating carbonaceous pelletizing | |
| CN104988268B (en) | A kind of continuous direct steelmaking device of Electromagnetic Heating carbonaceous pelletizing | |
| CN105132630B (en) | It is a kind of to be used for electric furnace, composite slag lotion of converter and preparation method thereof | |
| CN101503744A (en) | V-Ti-magnetite blast furnace smelting method | |
| CN107739819A (en) | A kind of method of coal base shaft furnace process processing iron content red mud | |
| CN106399608A (en) | Method for improving blast furnace smelting efficiency of high-aluminum iron ore with high-reactivity coke | |
| CN108265143B (en) | A kind of loading method preventing blast-furnace shaft knot thickness | |
| AU2008355447A1 (en) | A method of iron smelting in blast furnace with high temperature coal gas | |
| CN111910039B (en) | Method for treating surface layer ores of laterite-nickel ores by three-stage reduction method | |
| EP2743357B1 (en) | Blast-furnace smelting method | |
| JP2011179090A (en) | Method for producing granulated iron | |
| CN1062927A (en) | A kind of method that improves lead bullion Gold Content | |
| JP3874313B2 (en) | Blast furnace operation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |