CN106591524A - Low-cost blast furnace smelting method - Google Patents
Low-cost blast furnace smelting method Download PDFInfo
- Publication number
- CN106591524A CN106591524A CN201611154314.2A CN201611154314A CN106591524A CN 106591524 A CN106591524 A CN 106591524A CN 201611154314 A CN201611154314 A CN 201611154314A CN 106591524 A CN106591524 A CN 106591524A
- Authority
- CN
- China
- Prior art keywords
- coke
- blast furnace
- smelting process
- process according
- ore
- 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
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
- C21B5/007—Conditions of the cokes or characterised by the cokes used
-
- 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
- C21B7/00—Blast furnaces
- C21B7/16—Tuyéres
Abstract
The invention discloses a low-cost blast furnace smelting method. The low-cost blast furnace smelting method comprises the steps that coke nut with the particle sizes ranging from 8 mm to 20 mm is added to sintered vanadium-titanium ores, small sintered vanadium-titanium ore cubes, vanadium-titanium pellets and pig iron, and an ore layer is formed through uniform mixing; and the coke and the ore layers are alternately fed into a blast furnace, so that an alternate layering structure of the ore layers and the coke layers is formed, wherein the coke is composed of high-strength coke and low-strength coke, and the high-strength coke comprises dry quenched coke. A hearth of the blast furnace comprises multiple tuyeres and two iron notches, wherein the two iron notches are symmetrical about the center axis of the hearth, the tuyeres are arranged above the iron notches and distributed circumferentially, the diameters of the tuyeres which are symmetrical about the center axis of the hearth are identical, and the diameters of the tuyeres located on the two sides of the iron notches are smaller than or equal to the diameters of the other tuyeres on the circumference. By the adoption of the low-cost blast furnace smelting method, the ventilation performance of blast furnace smelting is improved, the intensity of blast furnace smelting is improved, the fuel ratio is lowered, and the cost is lowered.
Description
Technical field
The present invention relates to ironmaking technology field, and in particular to a kind of method of inexpensive blast furnace process.
Background technology
Blast furnace is a kind of shaft furnace type countercurrent reactor, and blast furnace ironmaking production belongs to a kind of continuous production processes.Often at present
Blast furnace ironmaking process directly loads in mixture cloth in furnace throat including coke with sintering deposit, pellet, lump ore.Sintering deposit, pellet, block
Ore deposit and coke and the high temperature reductive gas of the generation after hot blast and coke, the coal dust firing that blast furnace is blasted by air port of rising,
Through complicated physics, chemical reaction in blast furnace, the liquid iron and slag for generating is reduced, be deposited on cupola well, it is regular by iron mouth
Discharge；Then Jing stock gases system is reclaimed blast furnace gas.Smelting furnace material poor air permeability, coke is that the important fuel of blast furnace process disappears
Consumption is big, causes blast furnace process high cost.
The content of the invention
In view of this, the application provides a kind of inexpensive blast furnace smelting method, and methods described improves blast furnace process and breathes freely
Property, smelting strength of blast furnace reduces fuel ratio, reduces cost.
To solve above technical problem, the technical scheme that the present invention is provided is a kind of inexpensive blast furnace smelting method, described
Smelting process includes：
By the nut coke that particle size range is 8～20mm be added to vanadium titanium sintering deposit, vanadium titanium sintering deposit ore deposit fourth, vanadium-titanium pellet and
In the pig iron, ore layer is uniformly mixed to form；Coke and the ore layer are replaced into cloth and enters the blast furnace, into ore layer described in shape
With the alternating layer assembling structure of the coke layer, the coke is made up of high-strength burnt and low strong Jiao, described high-strength burnt including dry coke quenching；
The blast furnace crucibe includes that described two iron mouths are with regard to the cupola well central shaft pair to multiple air ports and two iron mouths
Claim to arrange, the air port is circumferentially distributed located at iron mouth top, straight with regard to the cupola well air port substantially symmetrical about its central axis
Footpath is consistent, and the tuyere diameter of the Tie Kou both sides is less than or equal to other tuyere diameters on the circumference.
Preferably, the coke is made up of high-strength burnt 70～75wt% and low strong burnt 25～30wt%..
Preferably, the coke is made up of high-strength burnt 73wt% and low strong burnt 27wt%..
Preferably, the dry coke quenching accounts for the high-strength burnt 49.2wt%.
Preferably, the smelting process also includes：Control ore deposit batch is 32～34t/ batch, and 300～350kg/ of nut coke is criticized, coke ratio
400～415kg/tFe.
Preferably, the inlet number is 20.
Preferably, air port length 500mm.
Preferably, the tuyere diameter is 120～130mm.
Preferably, the tuyere diameter is 120mm or 125mm, and the tuyere diameter of the Tie Kou both sides is 120mm.
Preferably, methods described also includes controlling air supply parameter air quantity for 3230～3300Nm3/ min, wind speed be 250～
269m/s, wind-warm syndrome is 1210～1230 DEG C.
Preferably, methods described also includes that it is 8.5～9.5wt%, TiO to control content of MgO in the slag2Content is
19.5～21.5wt%, Al2O3Content<14wt%.
Preferably, methods described is also including controlling to tap a blast furnace interval time for 10～20min.
Preferably, the smelting process is also including controlling to tap a blast furnace interval time for 12～15min.
Preferably, methods described also includes controlling top temperature for 140～200 DEG C, and furnace top pressure is 175～195kpa,
Gas utilization rate is 39～41%.
Preferably, methods described also includes the control slag dual alkalinity 1.14～1.18.
Preferably, the vanadium titanium sintering deposit, the vanadium titanium sintering deposit ore deposit fourth, the vanadium-titanium pellet and the iron quality
Than for 31:50:27:20.
Preferably, methods described also includes that it is 36～38 DEG C to control to cool down inflow temperature.
Preferably, the blast furnace staying rate is 0.2～2%.
Compared with prior art, its detailed description is as follows for the application：
The application adjusts on preferred blast furnace ironmaking process top, from vanadium titanium sintering deposit ore deposit fourth, and drops cheap nut coke
Add ore layer to replace cloth, improve gas permeability, smelting strength of blast furnace reduces fuel ratio, reduces cost；Meanwhile, it is burnt
Adding dry coke quenching in charcoal can improve the quality of coke, it is to avoid pollution to environment and reclaim red burnt sensible heat, can play energy-conservation with
The double action of environmental protection.
The application optimizes the adjustment of blast furnace ironmaking process bottom and arranges multiple air ports, and air port is circumferentially distributed, it is ensured that stove
Cylinder central gas stream is abundant, consistent with regard to the cupola well tuyere diameter substantially symmetrical about its central axis, it is to avoid cupola well edge and central gas
Flow distribution is uneven, realizes higher gas utilization rate, improves gas permeability, reduces fuel ratio, realizes that the working of a furnace is steady in a long-term, effectively drop
Low cost；Cupola well in iron mouth region is enlivened relatively, arranges the tuyere diameter of Tie Kou both sides less than or equal to other air ports on circumference
Diameter, it is to avoid the intensity of iron mouth regional gas stream is too strong, stablizes, it is ensured that each effectively goes out iron beneficial to iron mouth when tapping a blast furnace；It is right
Operating parameter is adjusted and blowing system is controlled, and improves smelting strength of blast furnace, is reduced fuel ratio and is maintained blast furnace
Steadily in the long term, the purpose of low cost smelting is reached.
The application controls A12O3Content, it is to avoid the A1 in slag2O3Too high levels increase therewith, cause slag fluidity to become
The appearance of the problems such as difference, desulphurizing ability decline, coke ratio rising, operating difficulties.Avoid because adapting to high Al2O3Smelting condition, causes
Raising slag in content of MgO, effective control causes blast furnace process cost.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Inexpensive blast furnace smelting method air port and iron mouth distribution schematic diagram that Fig. 1 is provided for the present invention；
The profile in the inexpensive blast furnace smelting method air port that Fig. 2 is provided for the present invention；
The profile in the inexpensive blast furnace smelting method air port that Fig. 3 is provided for the present invention.
Specific embodiment
In order that those skilled in the art more fully understands technical scheme, with reference to specific embodiment pair
The present invention is described in further detail.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Whole description, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.It is based on
Embodiments of the invention, the every other reality that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example is applied, the scope of protection of the invention is belonged to.
Embodiment 1
A kind of inexpensive blast furnace smelting method, the smelting process includes：
Top is adjusted：The nut coke that particle size range is 8～20mm is added to into vanadium titanium sintering deposit, vanadium titanium sintering deposit ore deposit fourth, vanadium
In titanium pellet and the pig iron, ore layer is uniformly mixed to form；The vanadium titanium sintering deposit, the vanadium titanium sintering deposit ore deposit fourth, the vanadium
Titanium pellet and iron quality ratio are 31:50:27:20, coke and the ore layer are replaced into cloth and enters the blast furnace, shape
It is described into ore layer and the alternating layer assembling structure of the coke layer, the coke is made up of high-strength burnt and low strong Jiao, described high-strength
Jiao includes dry coke quenching；The coke composition is made up of high-strength burnt 70wt% and low strong burnt 25wt%., the dry coke quenching accounts for the height
Strong burnt 49.2wt%.
Under do not adjust：As shown in FIG. 1 to 3, the blast furnace crucibe includes to 20 air ports 2 and two iron mouths 1, described two
Individual iron mouth 1 is circumferentially distributed with regard to the setting substantially symmetrical about its central axis of the cupola well 3, the air port 2 located at the top of the iron mouth 1, with regard to
The diameter of the air port 2 substantially symmetrical about its central axis of the cupola well 3 is consistent, and the diameter of air port 5 of the Tie Kou both sides is less than or equal to the circle
Other diameters of air port 4 on week, the diameter 120mm of air port 5 of 4 Tie Kou both sides, other diameters of air port 4 on 16 circumference
For 125mm, length 500mm of the air port 2.
Air supply parameter air quantity is controlled for 3230Nm3/ min, wind speed is 269m/s, and wind-warm syndrome is 1210 DEG C.Control the slag
Middle content of MgO is 8.5wt%, TiO2Content is 19.5wt%, Al2O3Content 11.8wt%, slag dual alkalinity 1.14.Control
Interval time tap a blast furnace for 10min.Top temperature is controlled for 140 DEG C, furnace top pressure is 195kpa, it is 36 to control to cool down inflow temperature
℃。
Blast furnace ironmaking process gas utilization rate is 39%, and blast furnace staying rate is 0.2%, and ore deposit batch is 32t/ batch, and nut coke is
300kg/ batch, coke ratio is 400kg/tFe.
Embodiment 2
A kind of inexpensive blast furnace smelting method, the smelting process includes：
Top is adjusted：The nut coke that particle size range is 8～20mm is added to into vanadium titanium sintering deposit, vanadium titanium sintering deposit ore deposit fourth, vanadium
In titanium pellet and the pig iron, ore layer is uniformly mixed to form；The vanadium titanium sintering deposit, the vanadium titanium sintering deposit ore deposit fourth, the vanadium
Titanium pellet and iron quality ratio are 31:50:27:20, coke and the ore layer are replaced into cloth and enters the blast furnace, shape
It is described into ore layer and the alternating layer assembling structure of the coke layer, the coke is made up of high-strength burnt and low strong Jiao, described high-strength
Jiao includes dry coke quenching；The coke composition is made up of high-strength burnt 73wt% and low strong burnt 27wt%., the dry coke quenching accounts for the height
Strong burnt 49.2wt%.
Bottom is adjusted：As shown in FIG. 1 to 3, the blast furnace crucibe includes to 20 air ports 2 and two iron mouths 1, described two
Individual iron mouth 1 is circumferentially distributed with regard to the setting substantially symmetrical about its central axis of the cupola well 3, the air port 2 located at the top of the iron mouth 1, with regard to
The diameter of the air port 2 substantially symmetrical about its central axis of the cupola well 3 is consistent, and the diameter of air port 5 of the Tie Kou both sides is less than or equal to the circle
Other diameters of air port 4 on week, a diameter of 120mm in air port 5 of 4 Tie Kou both sides, other air ports 4 are straight on 2 circumference
Footpath is 120mm, a diameter of 125mm in other air ports 4, length 500mm of the air port 2 on 14 circumference.
Methods described also includes controlling air supply parameter air quantity for 3230～3300Nm3/ min, wind speed is 250m/s, and wind-warm syndrome is
1220℃.It is 9.0wt%, TiO to control content of MgO in the slag2Content is 20.2wt%, Al2O3Content 13wt%, slag
Dual alkalinity 1.15.Control to tap a blast furnace interval time for 12min.Top temperature is controlled for 160 DEG C, furnace top pressure is 190kpa, control
But inflow temperature is 37 DEG C to refrigeration.
Blast furnace ironmaking process gas utilization rate is 40%, and blast furnace staying rate is 0.8%, and ore deposit batch is 33t/ batch, and nut coke is
310kg/ batch, coke ratio is 408kg/tFe.
Embodiment 3
A kind of inexpensive blast furnace smelting method, the smelting process includes：
Top is adjusted：The nut coke that particle size range is 8～20mm is added to into vanadium titanium sintering deposit, vanadium titanium sintering deposit ore deposit fourth, vanadium
In titanium pellet and the pig iron, ore layer is uniformly mixed to form；The vanadium titanium sintering deposit, the vanadium titanium sintering deposit ore deposit fourth, the vanadium
Titanium pellet and iron quality ratio are 31:50:27:20, coke and the ore layer are replaced into cloth and enters the blast furnace, shape
It is described into ore layer and the alternating layer assembling structure of the coke layer, the coke is made up of high-strength burnt and low strong Jiao, described high-strength
Jiao includes dry coke quenching；The coke composition is made up of high-strength burnt 75wt% and low strong burnt 30wt%, and the dry coke quenching accounts for the height
Strong burnt 49.2wt%.
Bottom is adjusted：As shown in FIG. 1 to 3, the blast furnace crucibe includes to 20 air ports 2 and two iron mouths 1, described two
Individual iron mouth 1 is circumferentially distributed with regard to the setting substantially symmetrical about its central axis of the cupola well 3, the air port 2 located at the top of the iron mouth 1, with regard to
The diameter of the air port 2 substantially symmetrical about its central axis of the cupola well 3 is consistent, and the diameter of air port 5 of the Tie Kou both sides is less than or equal to the circle
Other diameters of air port 4 on week, a diameter of 120mm in air port 5 of 4 Tie Kou both sides, other air ports 4 are straight on 16 circumference
Footpath is 130mm, air port length 500mm.
It is 3230～3300Nm3/min to control air supply parameter air quantity, and wind speed is 266m/s, and wind-warm syndrome is 1230 DEG C.Control institute
It is 9.5wt%, TiO to state content of MgO in slag2Content is 21.5wt%, Al2O3Content 11.2wt%, slag dual alkalinity
1.18.Control to tap a blast furnace interval time for 15min.Top temperature is controlled for 200 DEG C, furnace top pressure is 180kpa, control cool down into
Coolant-temperature gage is 38 DEG C.
Blast furnace ironmaking process gas utilization rate is 41%, and blast furnace staying rate is 2%, and ore deposit batch is 34t/ batch, and nut coke is
350kg/ batch, coke ratio is 415kg/tFe.
Embodiment 4
A kind of inexpensive blast furnace smelting method, the smelting process includes：
Top is adjusted：The nut coke that particle size range is 8～20mm is added to into vanadium titanium sintering deposit, vanadium titanium sintering deposit ore deposit fourth, vanadium
In titanium pellet and the pig iron, ore layer is uniformly mixed to form；The vanadium titanium sintering deposit, the vanadium titanium sintering deposit ore deposit fourth, the vanadium
Titanium pellet and iron quality ratio are 31:50:27:20, coke and the ore layer are replaced into cloth and enters the blast furnace, shape
It is described into ore layer and the alternating layer assembling structure of the coke layer, the coke is made up of high-strength burnt and low strong Jiao, described high-strength
Jiao includes dry coke quenching；
Bottom is adjusted：As shown in FIG. 1 to 3, the blast furnace crucibe includes to 20 air ports 2 and two iron mouths 1, described two
Individual iron mouth 1 is circumferentially distributed with regard to the setting substantially symmetrical about its central axis of the cupola well 3, the air port 2 located at the top of the iron mouth 1, with regard to
The diameter of the air port 2 substantially symmetrical about its central axis of the cupola well 3 is consistent, and the diameter of air port 5 of the Tie Kou both sides is less than or equal to the circle
Other diameters of air port 4 on week, a diameter of 130mm in other air ports 4 on 2 circumference, other air ports 4 are straight on 14 circumference
Footpath is 125mm, and the diameter 120mm of air port 5 of 4 Tie Kou both sides, length 500mm of the air port 2, the coke is constituted by height
Strong Jiao 70wt% and low strong burnt 25wt% compositions., the dry coke quenching accounts for the high-strength burnt 49.2wt%.
Methods described also includes controlling air supply parameter air quantity for 3230～3300Nm3/min, and wind speed is 258m/s, and wind-warm syndrome is
1230℃.It is 8.8wt%, TiO to control content of MgO in the slag2Content is 21.5wt%, Al2O3Content 12wt%, slag
Dual alkalinity 1.16.Control to tap a blast furnace interval time for 20min.Top temperature is controlled for 173 DEG C, furnace top pressure is 175kpa, control
But inflow temperature is 38 DEG C to refrigeration.
Blast furnace ironmaking process gas utilization rate is 41%, and blast furnace staying rate is 1%, and ore deposit batch is 33.5t/ batch, and nut coke is
320kg/ batch, coke ratio is 415kg/tFe.
The above is only the preferred embodiment of the present invention, it is noted that it is right that above-mentioned preferred embodiment is not construed as
The restriction of the present invention, protection scope of the present invention should be defined by claim limited range.For the art
For those of ordinary skill, without departing from the spirit and scope of the present invention, some improvements and modifications can also be made, these change
Enter and retouch also to should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of inexpensive blast furnace smelting method, it is characterised in that the smelting process includes：
The nut coke that particle size range is 8～20mm is added to into vanadium titanium sintering deposit, vanadium titanium sintering deposit ore deposit fourth, vanadium-titanium pellet and the pig iron
In, it is uniformly mixed to form ore layer；Coke and the ore layer are replaced into cloth and enters the blast furnace, into ore layer and institute described in shape
The alternating layer assembling structure of coke layer is stated, the coke is made up of high-strength burnt and low strong Jiao, it is described high-strength burnt including dry coke quenching；
The blast furnace crucibe includes that to multiple air ports and two iron mouths described two iron mouths set with regard to the cupola well is substantially symmetrical about its central axis
Put, the air port is circumferentially distributed, with regard to the cupola well tuyere diameter one substantially symmetrical about its central axis located at iron mouth top
Cause, the tuyere diameter of the Tie Kou both sides is less than or equal to other tuyere diameters on the circumference.
2. smelting process according to claim 1, it is characterised in that the coke is by high-strength burnt 70～75wt% and low strong
25～30wt% of Jiao is constituted.
3. smelting process according to claim 1, it is characterised in that the dry coke quenching accounts for described high-strength burnt 49～
50wt%.
4. smelting process according to claim 1, it is characterised in that the smelting process also includes：Control ore deposit batch is 32
～34t/ batch, nut coke is 300～350kg/ batch, and coke ratio is 400～415kg/tFe.
5. smelting process according to claim 1, it is characterised in that the inlet number is 20.
6. smelting process according to claim 1, it is characterised in that the tuyere diameter is 120～130mm.
7. smelting process according to claim 1, it is characterised in that methods described also includes control air supply parameter：Air quantity
For 3230～3300Nm3/ min, wind speed is 250～269m/s, and wind-warm syndrome is 1210～1230 DEG C.
8. smelting process according to claim 1, it is characterised in that methods described also includes MgO in the control slag
Content is 8.5～9.5wt%, TiO2Content is 19.5～21.5wt%, Al2O3Content<14wt%.
9. smelting process according to claim 1, it is characterised in that methods described is also including the interval time that controls to tap a blast furnace
10～20min.
10. smelting process according to claim 1, it is characterised in that methods described also includes that it is 140 control top temperature
～200 DEG C, furnace top pressure is 175～195kpa, and gas utilization rate is 39～41%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611154314.2A CN106591524A (en) | 2017-02-14 | 2017-02-14 | Low-cost blast furnace smelting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611154314.2A CN106591524A (en) | 2017-02-14 | 2017-02-14 | Low-cost blast furnace smelting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106591524A true CN106591524A (en) | 2017-04-26 |
Family
ID=58800978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611154314.2A Pending CN106591524A (en) | 2017-02-14 | 2017-02-14 | Low-cost blast furnace smelting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106591524A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108842017A (en) * | 2018-08-21 | 2018-11-20 | 成渝钒钛科技有限公司 | The method of blast furnace fuel ratio is reduced in a kind of ironmaking processes |
| CN109266798A (en) * | 2018-10-30 | 2019-01-25 | 攀钢集团攀枝花钢铁研究院有限公司 | The method that titanium carbonitride generates during reduction smelting vanadium-titanium magnetite by blast furnace |
| CN115354093A (en) * | 2022-04-07 | 2022-11-18 | 中冶赛迪工程技术股份有限公司 | Smelting cost control method and system for low-carbon blast furnace |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000256714A (en) * | 1999-03-05 | 2000-09-19 | Kawasaki Steel Corp | Device for controlling iron tapping slag in blast furnace |
| 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 |
| CN106191351A (en) * | 2016-08-31 | 2016-12-07 | 云南德胜钢铁有限公司 | A kind of method of blast furnace ironmaking |
-
2017
- 2017-02-14 CN CN201611154314.2A patent/CN106591524A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000256714A (en) * | 1999-03-05 | 2000-09-19 | Kawasaki Steel Corp | Device for controlling iron tapping slag in blast furnace |
| 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 |
| CN106191351A (en) * | 2016-08-31 | 2016-12-07 | 云南德胜钢铁有限公司 | A kind of method of blast furnace ironmaking |
Non-Patent Citations (2)
| Title |
|---|
| 何益先等: "德胜钒钛1250m3高炉低品位高钒钛矿冶炼降焦比实践", 《四川冶金》 * |
| 张寿荣等: "《高炉失常与事故处理》", 31 January 2012, 冶金工业出版社 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108842017A (en) * | 2018-08-21 | 2018-11-20 | 成渝钒钛科技有限公司 | The method of blast furnace fuel ratio is reduced in a kind of ironmaking processes |
| CN109266798A (en) * | 2018-10-30 | 2019-01-25 | 攀钢集团攀枝花钢铁研究院有限公司 | The method that titanium carbonitride generates during reduction smelting vanadium-titanium magnetite by blast furnace |
| CN109266798B (en) * | 2018-10-30 | 2021-01-26 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for reducing generation of titanium carbonitride in process of smelting vanadium titano-magnetite by blast furnace |
| CN115354093A (en) * | 2022-04-07 | 2022-11-18 | 中冶赛迪工程技术股份有限公司 | Smelting cost control method and system for low-carbon blast furnace |
| CN115354093B (en) * | 2022-04-07 | 2024-02-23 | 中冶赛迪工程技术股份有限公司 | Smelting cost control method and system for low-carbon blast furnace |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107119163A (en) | A kind of Burden distribution method of blast furnace of pelletizing at high proportion | |
| CN106011341B (en) | The method that blast furnace process schreyerite carries high-coal ratio | |
| CN101445869A (en) | Method for manufacturing metallic pellets by direct reduction of oxygen-enriched combustion in rotary furnace | |
| CN104328242B (en) | Method for making steel containing vanadium titanium high phosphorus hot metal | |
| CN104531923A (en) | Blast furnace iron-making raw material and blast furnace iron-making method | |
| CN104726696B (en) | Middle basicity deep-bed sintering production method | |
| CN103468838B (en) | Blast furnace ironmaking technology adopting high pellet ore proportion | |
| CN106591524A (en) | Low-cost blast furnace smelting method | |
| CN104232822A (en) | Method for carrying out blast furnace iron making on high-phosphorus oolitic hematite and vanadium titano-magnetite | |
| CN109355448B (en) | Smelting process for large blast furnace with high-proportion low-silicon high-magnesium fluorine-containing fluxing pellets | |
| WO2023134368A1 (en) | Ultrahigh oxygen-enriched low-carbon smelting method | |
| CN107904347B (en) | Coal-based direct reduction shaft furnace and reduction method thereof | |
| CN110724776B (en) | Blast furnace smelting method of vanadium titano-magnetite | |
| CN106119449B (en) | A kind of blast furnace whole world group smelting process | |
| CN106191351A (en) | A kind of method of blast furnace ironmaking | |
| CN108676947A (en) | A kind of mixing coal for blast furnace blowing Powder Particle Size determines method | |
| CN102041331B (en) | Method for smelting vanadium-titanium magnetite in blast furnace | |
| CN110305999B (en) | Metallized furnace charge for treating blast furnace hearth accumulation and using method thereof | |
| CN104630407A (en) | Whole-body type external-heating muffle type rotary kiln | |
| CN102409126A (en) | Integrated reduction ironmaking furnace and integrated reduction ironmaking process | |
| CN106319115A (en) | Method for quick repair of blast furnace hearth local damage | |
| CN107043836A (en) | A kind of method of blast furnace ironmaking | |
| CN114139799A (en) | Method for determining air inlet area of blast furnace tuyere | |
| CN103276278A (en) | Smelting reduction furnace used for smelting laterite-nickel ore | |
| CN108660272B (en) | Blast furnace composite furnace protection burden and preparation and furnace protection methods thereof |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170426 |