CN105506203A - Blast furnace blow-in burdening method - Google Patents
Blast furnace blow-in burdening method Download PDFInfo
- Publication number
- CN105506203A CN105506203A CN201510983215.4A CN201510983215A CN105506203A CN 105506203 A CN105506203 A CN 105506203A CN 201510983215 A CN201510983215 A CN 201510983215A CN 105506203 A CN105506203 A CN 105506203A
- Authority
- CN
- China
- Prior art keywords
- slag
- section
- coke
- ing
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Iron (AREA)
Abstract
The invention discloses a blast furnace blow-in burdening method. The furnace burden of a blast furnace is divided into four segments, namely a wood segment, a net coke segment, a blank coke segment and a normal material segment; hard wood is loaded into the wood segment; all-clinker blowing-in with the hard wood rather than a wooden sleeper is adopted, such that the generation amount of furnace slag may be greatly reduced and the gas permeability of a cohesive zone may be improved; especially in 6-10 hours at the preliminary blowing-in stage, the formation time of the cohesive zone is shortened, the blowing-in process is accelerated and the production condition of the blast furnace is stabilized. Coke is loaded into the net coke segment; blank coke is loaded into the blank coke segment and satisfies the following blank coke matching conditions: furnace slag binary basicity R2=1.05, CaF2 in slag ranging from 2% to 6% and [Si] in liquid iron=2.5%. Normal materials are loaded into the normal material segment and the matching of the normal materials is enabled to satisfy the following conditions: furnace slag binary basicity R2=1.1, CaF2 in slag ranging from 2% to 6%, [Si] in liquid iron=4%, a slag ratio being less than 400kg/thm, and a liquid material load level maintained within 2.5.
Description
Technical field
The application relates to metallurgical engineering technical field of blast furnace ironmaking, particularly relates to a kind of blast furnace blowing-in burdening method.
Background technology
The proportioning of blast furnace opening loading material and distribution mode are the core technologies of blast furnace opening, are also determine blast furnace opening key point smoothly.Tradition blast-furnace burden many employings agglomerate, pellet, lump ore are as major ingredient, and the auxiliary material such as Fluorspar Additives, silica, general requirement controls Al in slag
2o
3content, and by improve slag ratio to diluting slag, ensure slag possess good mobility.In addition, also by adding manganese ore, the effect of dilution slag iron is reached.Such as in blast furnace medium-capital overhauling blown in burden method, require blow-on material total coke ratio 3000kg/ ton iron-3400kg/ ton iron; Slag iron compares 1300kg/thm-1400kg/thm; Slag coke ratio 0.38-0.45; Slag Al
2o
3content≤18%.And in another kind of blast furnace blowing-in burdening method, then utilize and add the effect that manganese ore reaches dilution slag iron.
But above-mentioned blow-in method can cause that supplies consumption is many, slag ratio is high, and coke ratio consumption is also higher.In addition, due to the unreasonable ventilation property often affecting stock column of burden structure, cause pressure reduction in blow-on process high, occur collapsing the accidents such as material, hanging, cause being forced to a large amount of checking in blow-on process, have a strong impact on blow-on and reach product process.
Summary of the invention
Invention provides the distribution that the quick blow-on of a kind of blast furnace reaches product, to solve the unreasonable technical problem causing blow-on to have some setbacks of burden structure.
For solving the problems of the technologies described above, the invention provides a kind of new blast furnace four sections of blow in burden methods, comprising weedtree section, clean burnt section, empty burnt section and regular burden(ing) section.By the spatial altitude of the composition structure and four sections of furnace charges of optimizing four sections of furnace charges, reach the object accurately controlling blow-on process.
The invention discloses a kind of blast furnace blowing-in burdening method, the furnace burdening of described blast furnace is divided into four sections, is respectively weedtree section, clean burnt section, empty burnt section, regular burden(ing) section;
Hardwood is loaded in described weedtree section; Wherein, cupola well ladle heel layer to cupola well air port medullary ray is described weedtree section;
Coke is loaded in described clean burnt section; Wherein, in the middle part of furnace bosh, more than described cupola well air port medullary ray be described clean burnt section;
Load empty burnt in the burnt section of described sky; Described empty Jiao comprises coke, fluorite, Wingdale; In the middle part of described furnace bosh to shaft predeterminated position be the burnt section of described sky; In the burnt section of described sky, described charging empty burnt proportioning satisfies condition as slag dual alkalinity R
2=1.05, CaF in slag
2between 2 ~ 6%, [Si]=2.5% in molten iron;
Regular burden(ing) is loaded in described regular burden(ing) section; Wherein, described regular burden(ing) comprises: coke, agglomerate, pellet, fluorite; Described shaft predeterminated position to furnace throat stockline predeterminated position is described regular burden(ing) section; In described regular burden(ing) section, regular burden(ing) proportioning satisfies condition: slag dual alkalinity R
2=1.1, CaF in slag
2between 2 ~ 6%, [Si]=4% in molten iron, slag ratio is less than 400kg/thm, and iron charge load level maintains within 2.5.
Preferably, described shaft predeterminated position be in on furnace bosh along for benchmark, and along up 3-5 rice on furnace bosh;
Described furnace throat stockline predeterminated position is 2 meters of below furnace throat stockline.
Preferably, the proportioning of described coke, described fluorite, described Wingdale three is: 32:4:1 or 32:5:2
Preferably, in described regular burden(ing) section, the ratio of described pellet is greater than 55%.
Preferably, the specification of described hardwood is φ 200 × 600mm
Preferably, described regular burden(ing) Duan Zhongke is additional clean burnt, and clean coke (per) charge number is distributed in stove with adopting the mode of progressively successively decreasing and regular burden(ing) transpostion interval.
Preferably, CaF in described fluorite
2containing the > 50% of mass percent.
Preferably, general assembly pan feeding requires: within the total coke ratio 3.2t/thm of blow-on, slag dual alkalinity R2=0.9-1.0, in slag, CaF2 is between 2 ~ 6%, [Si]=4% in molten iron, and full slag ratio is less than 800kg/thm.
By one or more technical scheme of the present invention, the present invention has following beneficial effect or advantage:
(1) adopt hardwood to substitute the well done material blow-on of sleeper, can greatly reduce slag growing amount, improve the ventilation property of cohesive zone, especially at 6 ~ 10 hours of the blow-on initial stage, shorten cohesive zone formation time, accelerate blow-on process, stablize the direct motion state of blast furnace.(2) lower slag ratio blow-on can obtain more qualified iron, greatly reduces the use of this kind of assorted material of manganese ore simultaneously, reduces blow-on cost further.(3) because the blow-on quantity of slag is few, so under the prerequisite that coke ratio is certain, the slag iron entering cupola well can obtain higher temperature, to ensure that cupola well obtains sufficient heat.(4) time of first time iron can be delayed, after foreknowledge iron, see slag, ensure the reasonable flow of slag iron.
Accompanying drawing explanation
Fig. 1 is the structural representation of the furnace burdening section of blast furnace in the embodiment of the present invention;
Fig. 2 is embodiment of the present invention blast furnace blowing-in burdening method implementation process figure.
Embodiment
In order to make the application the technical staff in the technical field more clearly understand the application, below in conjunction with accompanying drawing, by specific embodiment, technical scheme is described in detail.
In embodiments of the present invention, a kind of blast furnace blowing-in burdening method is disclosed.
In the blast furnace blowing-in burdening method of the embodiment of the present invention, referring to Fig. 1, the furnace burdening of blast furnace is divided into four sections, is respectively weedtree section, clean burnt section, empty burnt section, regular burden(ing) section.
Specifically please refer to Fig. 1, is the schematic diagram of four sections divided.
Described cupola well ladle heel layer is weedtree section to cupola well air port medullary ray.
It more than described cupola well air port medullary ray is described clean burnt section in the middle part of furnace bosh.
In the middle part of described furnace bosh to shaft predeterminated position be the burnt section of described sky.Specifically, shaft predeterminated position be in on furnace bosh along for benchmark, and along up 3-5 rice on furnace bosh.
Described shaft predeterminated position to furnace throat stockline predeterminated position is described regular burden(ing) section.Furnace throat stockline predeterminated position is 2 meters of below furnace throat stockline.
Referring specifically to Fig. 2, just introduce concrete distribution below.
The first step, loads hardwood in weedtree section.
Specifically, the specification of hardwood is φ 200 × 600mm, is convenient to load in stove.Load from air port in stove, load height to air port medullary ray.Adopt hardwood to substitute the well done material blow-on of sleeper, blow-on cost can be reduced, accelerate blow-on process.
Second, load coke in clean burnt section.
Clean burnt section: load the rational dry coke quenching of index.
3rd step, loads empty burnt in the burnt section of sky.
Empty Jiao comprises coke, fluorite, Wingdale.
Empty burnt section is to ensure slag dual alkalinity R
2=1.05, CaF in slag
2between 2 ~ 6%, in molten iron, [Si]=2.5% is target, the proportioning of adjustment coke, fluorite and Wingdale.Specifically, the proportioning of coke, fluorite, Wingdale can be: 32:4:1 or 32:5:2.
And CaF in fluorite
2containing the > 50% of mass percent.
4th step, loads regular burden(ing) in regular burden(ing) section.
Regular burden(ing) comprises: agglomerate, pellet, fluorite.
Regular burden(ing) section is based on well done material (sintering, pelletizing) blow-on, improve the ratio of pellet as far as possible, usual pellet ratio is greater than 55%, increase the ratio of pellet can greatly improve into furnace charge Iron grade and scum ratio, and by adjusting slag fluidity with addition of a small amount of fluorite (fluorite with addition of ratio be 0.5t).
The following condition of regular burden(ing) proportioning demand fulfillment: slag dual alkalinity R
2=1.1, CaF in slag
2between 2 ~ 6%, [Si]=4% in molten iron, slag ratio is less than 400kg/thm, and iron charge load level maintains within 2.5.
In addition, clean Jiao (pure coke) can also be added in described regular burden(ing) section; , clean coke (per) charge number is distributed in stove with adopting the mode of progressively successively decreasing and regular burden(ing) transpostion interval.
Controlled be less than 400kg/thm by the lower slag ratio of regular burden(ing), blow-on can obtain more qualified iron, greatly reduces the use of this kind of assorted material of manganese ore simultaneously, reduces blow-on cost further.In addition, because the blow-on quantity of slag is few, so under the prerequisite that coke ratio is certain, the slag iron entering cupola well can obtain higher temperature, to ensure that cupola well obtains sufficient heat.In addition, also can delay the time of first time iron, after foreknowledge iron, see slag, ensure the reasonable flow of slag iron.
General assembly pan feeding requires: within the total coke ratio 3.2t/thm of blow-on, slag dual alkalinity R
2=0.9-1.0, CaF in slag
2between 2 ~ 6%, [Si]=4% in molten iron, full slag ratio is less than 800kg/thm.
See Fig. 1, with 2500m
3blast furnace is example, first whole furnace burdening is divided into four sections, is respectively (1) weedtree section: load hardwood from cupola well ladle heel layer to air port medullary ray; (2) clean burnt section: load coke more than the medullary ray of cupola well air port in the middle part of furnace bosh; (3) empty burnt section: edge is up feeded empty burnt in 5 meters of to furnace bosh in the middle part of furnace bosh, and it consists of: coke+fluorite+Wingdale.(4) regular burden(ing) section: load regular burden(ing) from furnace bosh along 5 meters to lower 2 meters of of furnace throat stockline, it consists of: coke+agglomerate+pellet+fluorite.
Then, determine ore deposit criticize 36.8t, coke (per) charge 16t, the bulk density of various furnace charge, rate of compression 13%, pig iron composition, element in slag iron partition ratio, determine volume shared by each section;
Weedtree section: load hardwood below the medullary ray of air port and in ladle heel layer, should select the hardwood of φ 200 × 600mm to load in stove from air port, load height to air port medullary ray.The Intake Quantity of hardwood is calculated according to the volume of this section and rate of compression.
Clean burnt section: load the rational dry coke quenching of index.According to the volume of coke (per) charge 16t, rate of compression 13%, bulk density and this section of blast furnace, determine required clean coke (per) charge number 27 batches.
Empty burnt section: to ensure slag dual alkalinity R
2=1.05, CaF in slag
2between 2 ~ 6%, in molten iron, [Si]=2.5% is target, draws the proportioning of coke 16t, fluorite 0.3t and Wingdale 1.2t after adjustment.
Regular burden(ing) section: to sinter 30%, pelletizing 70% stove is main blow-on material, and improve the ratio of pellet, usual pellet ratio is greater than 55% as far as possible, by with addition of a small amount of fluorite adjustment slag fluidity.Require: slag dual alkalinity R
2=1.1, CaF in slag
2between 2 ~ 6%, [Si]=4% in molten iron, slag ratio is less than 400kg/thm, and iron charge load level maintains within 2.5.And additional certain clean Jiao, and be distributed in stove with requiring additional clean Jiao and regular burden(ing) transpostion interval.Additional clean burnt feed postition can adopt the mode of progressively successively decreasing to add, as 5 batches of additional clean burnt+5 batches of regular burden(ing)s, and 4 batches of additional clean burnt+5 batches of regular burden(ing)s, 3 batches of additional clean burnt+5 batches of regular burden(ing)s, 2 batches of additional clean burnt+5 batches of regular burden(ing)s, 1 batch of additional clean burnt+5 batches of regular burden(ing).
General assembly pan feeding requires: within the total coke ratio 3.2t/thm of blow-on, slag dual alkalinity R
2=0.9-1.0, CaF in slag
2between 2 ~ 6%, [Si]=4% in molten iron, full slag ratio is less than 800kg/thm.
CaF in described fluorite
2containing the > 50% of mass percent.
Be more than the concrete introduction of the embodiment of the present invention, below the present invention summarized:
Wherein said preferably after the composition of four sections of furnace charges and structure:
Described weedtree section is made up of the hardwood of φ 200 × 600mm, and the hardwood of this size is convenient to manually throw away in stove from air port; Described clean burnt section forms by loading the rational dry coke quenching of index; The burnt section of described sky is made up of coke, fluorite and Wingdale, and by controlling slag dual alkalinity R
2=1.05, CaF in slag
2between 2 ~ 6%, in molten iron, [Si]=2.5% adjusts the proportioning of coke, fluorite and Wingdale for target.CaF in described fluorite
2containing the > 50% of mass percent.Described regular burden(ing) section by sintering, pellet forms, pellet ratio is greater than 55%, and requires slag dual alkalinity R
2=1.1, CaF in slag
2between 2 ~ 6%, [Si]=4% in molten iron, slag ratio is less than 400kg/thm, and iron charge load level maintains within 2.5.
The spatial altitude of described preferred four sections of furnace charges:
Described weedtree section refers to from ladle heel layer to cupola well air port medullary ray and loads hardwood; Described clean burnt section refers to and in the middle part of furnace bosh, load coke more than the medullary ray of cupola well air port; The burnt section of described sky refers to that edge up loads empty burnt in 3 meters to 5 meters to furnace bosh in the middle part of furnace bosh; Described regular burden(ing) section refer to from furnace bosh along up 3 meters to 5 meters load regular burden(ing)s to furnace throat stockline 2 meters of, clean Jiao additional certain in the loading procedure of its regular burden(ing), and to be distributed in stove with requiring additional clean Jiao and regular burden(ing) transpostion interval.
From the on the whole general assembly pan feeding requirement of full stove: within the total coke ratio 3.2t/thm of blow-on, slag dual alkalinity R
2=0.9-1.0, CaF in slag
2between 2 ~ 6%, [Si]=4% in molten iron, full slag ratio is less than 800kg/thm.
By one or more embodiment of the present invention, the present invention has following beneficial effect or advantage:
The invention discloses a kind of blast furnace blowing-in burdening method, the furnace burdening of described blast furnace is divided into four sections, is respectively weedtree section, clean burnt section, empty burnt section, regular burden(ing) section; By loading hardwood in described weedtree section, adopting hardwood to substitute the well done material blow-on of sleeper, can greatly reduce slag growing amount, improve the ventilation property of cohesive zone, especially at 6 ~ 10 hours of the blow-on initial stage, shorten cohesive zone formation time, accelerate blow-on process, stablize the direct motion state of blast furnace.Load coke in described clean burnt section, load in the burnt section of described sky empty burnt, and meet empty burnt conditions of mixture ratios: slag dual alkalinity R
2=1.05, CaF in slag
2between 2 ~ 6%, [Si]=2.5% in molten iron.Load regular burden(ing) in described regular burden(ing) section, regular burden(ing) proportioning is satisfied condition: slag dual alkalinity R
2=1.1, CaF in slag
2between 2 ~ 6%, [Si]=4% in molten iron, slag ratio is less than 400kg/thm, and iron charge load level maintains within 2.5.
The lower slag ratio of regular burden(ing) is controlled can obtain more qualified iron being less than 400kg/thm blow-on, greatly reduce the use of this kind of assorted material of manganese ore simultaneously, reduce blow-on cost further.
Further, because the blow-on quantity of slag is few, so under the prerequisite that coke ratio is certain, the slag iron entering cupola well can obtain higher temperature, to ensure that cupola well obtains sufficient heat.
Further, can delay the time of first time iron, after foreknowledge iron, see slag, ensure the reasonable flow of slag iron.
Although described the preferred embodiment of the application, one of ordinary skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the application's scope.
Obviously, those skilled in the art can carry out various change and modification to the application and not depart from the spirit and scope of the application.Like this, if these amendments of the application and modification belong within the scope of the application's claim and equivalent technologies thereof, then the application is also intended to comprise these change and modification.
Claims (8)
1. a blast furnace blowing-in burdening method, is characterized in that, the furnace burdening of described blast furnace is divided into four sections, is respectively weedtree section, clean burnt section, empty burnt section, regular burden(ing) section;
Hardwood is loaded in described weedtree section; Wherein, cupola well ladle heel layer to cupola well air port medullary ray is described weedtree section;
Coke is loaded in described clean burnt section; Wherein, in the middle part of furnace bosh, more than described cupola well air port medullary ray be described clean burnt section;
Load empty burnt in the burnt section of described sky; Described empty Jiao comprises coke, fluorite, Wingdale; In the middle part of described furnace bosh to shaft predeterminated position be the burnt section of described sky; In the burnt section of described sky, described charging empty burnt proportioning satisfies condition as slag dual alkalinity R
2=1.05, CaF in slag
2between 2 ~ 6%, [Si]=2.5% in molten iron;
Regular burden(ing) is loaded in described regular burden(ing) section; Wherein, described regular burden(ing) comprises: coke, agglomerate, pellet, fluorite; Described shaft predeterminated position to furnace throat stockline predeterminated position is described regular burden(ing) section; In described regular burden(ing) section, regular burden(ing) proportioning satisfies condition: slag dual alkalinity R
2=1.1, CaF in slag
2between 2 ~ 6%, [Si]=4% in molten iron, slag ratio is less than 400kg/thm, and iron charge load level maintains within 2.5.
2. a kind of blast furnace blowing-in burdening method as claimed in claim 1, is characterized in that, described shaft predeterminated position be in on furnace bosh along for benchmark, and along up 3-5 rice on furnace bosh;
Described furnace throat stockline predeterminated position is 2 meters of below furnace throat stockline.
3. a kind of blast furnace blowing-in burdening method as claimed in claim 1, is characterized in that, the proportioning of described coke, described fluorite, described Wingdale three is: 32:4:1 or 32:5:2.
4. a kind of blast furnace blowing-in burdening method as claimed in claim 1, is characterized in that, in described regular burden(ing) section, the ratio of described pellet is greater than 55%.
5. a kind of blast furnace blowing-in burdening method as claimed in claim 1, is characterized in that, the specification of described hardwood is φ 200 × 600mm.
6. a kind of blast furnace blowing-in burdening method as claimed in claim 1, is characterized in that, described regular burden(ing) Duan Zhongke is additional clean burnt, and clean coke (per) charge number is distributed in stove with adopting the mode of progressively successively decreasing and regular burden(ing) transpostion interval.
7. a kind of blast furnace blowing-in burdening method as claimed in claim 1, is characterized in that, CaF in described fluorite
2containing the > 50% of mass percent.
8. a kind of blast furnace blowing-in burdening method as claimed in claim 1, is characterized in that, general assembly pan feeding requires: within the total coke ratio 3.2t/thm of blow-on, slag dual alkalinity R2=0.9-1.0, in slag, CaF2 is between 2 ~ 6%, [Si]=4% in molten iron, and full slag ratio is less than 800kg/thm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510983215.4A CN105506203B (en) | 2015-12-24 | 2015-12-24 | A kind of blast furnace blowing-in burdening method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510983215.4A CN105506203B (en) | 2015-12-24 | 2015-12-24 | A kind of blast furnace blowing-in burdening method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105506203A true CN105506203A (en) | 2016-04-20 |
| CN105506203B CN105506203B (en) | 2018-04-27 |
Family
ID=55714492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510983215.4A Active CN105506203B (en) | 2015-12-24 | 2015-12-24 | A kind of blast furnace blowing-in burdening method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105506203B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106011339A (en) * | 2016-07-07 | 2016-10-12 | 首钢总公司 | Blow-in burdening method for blast furnace |
| CN108315514A (en) * | 2018-02-09 | 2018-07-24 | 武汉钢铁有限公司 | Blast furnace opening loading method |
| CN110669883A (en) * | 2018-08-22 | 2020-01-10 | 广东韶钢松山股份有限公司 | 1050m3Process for preparing furnace material of blast furnace |
| CN110835662A (en) * | 2019-11-28 | 2020-02-25 | 内蒙古科技大学 | Furnace stewing material charging method for rapidly recovering furnace condition of blast furnace |
| CN111041139A (en) * | 2019-12-17 | 2020-04-21 | 首钢集团有限公司 | Material distribution method for blast furnace blowing-in |
| CN111593149A (en) * | 2019-02-20 | 2020-08-28 | 新疆八一钢铁股份有限公司 | Smooth blow-in method for large blast furnace for iron making |
| CN111778371A (en) * | 2020-05-21 | 2020-10-16 | 南京钢铁股份有限公司 | Method for quickly spraying coal and enriching oxygen during blow-in of blast furnace |
| CN114959131A (en) * | 2022-04-25 | 2022-08-30 | 广东韶钢松山股份有限公司 | Filling process for blow-in sleeper of blast furnace |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101942534A (en) * | 2010-09-02 | 2011-01-12 | 武汉钢铁(集团)公司 | Proportioning method adopted during blow-in for large and medium maintenance of blast furnace |
| CN102399921A (en) * | 2010-09-16 | 2012-04-04 | 鞍钢股份有限公司 | Blast furnace blowing-in burdening method |
| CN103031394A (en) * | 2012-10-30 | 2013-04-10 | 鞍钢股份有限公司 | Proportioning method for lower part of blast furnace |
| CN104232821A (en) * | 2014-09-09 | 2014-12-24 | 武汉钢铁(集团)公司 | Blow-in batching method for over 3000m<3> large blast furnace |
-
2015
- 2015-12-24 CN CN201510983215.4A patent/CN105506203B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101942534A (en) * | 2010-09-02 | 2011-01-12 | 武汉钢铁(集团)公司 | Proportioning method adopted during blow-in for large and medium maintenance of blast furnace |
| CN102399921A (en) * | 2010-09-16 | 2012-04-04 | 鞍钢股份有限公司 | Blast furnace blowing-in burdening method |
| CN103031394A (en) * | 2012-10-30 | 2013-04-10 | 鞍钢股份有限公司 | Proportioning method for lower part of blast furnace |
| CN104232821A (en) * | 2014-09-09 | 2014-12-24 | 武汉钢铁(集团)公司 | Blow-in batching method for over 3000m<3> large blast furnace |
Non-Patent Citations (1)
| Title |
|---|
| 王涛等: "首钢京唐公司1号高炉开炉实践", 《炼铁》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106011339A (en) * | 2016-07-07 | 2016-10-12 | 首钢总公司 | Blow-in burdening method for blast furnace |
| CN108315514A (en) * | 2018-02-09 | 2018-07-24 | 武汉钢铁有限公司 | Blast furnace opening loading method |
| CN110669883A (en) * | 2018-08-22 | 2020-01-10 | 广东韶钢松山股份有限公司 | 1050m3Process for preparing furnace material of blast furnace |
| CN111593149A (en) * | 2019-02-20 | 2020-08-28 | 新疆八一钢铁股份有限公司 | Smooth blow-in method for large blast furnace for iron making |
| CN110835662A (en) * | 2019-11-28 | 2020-02-25 | 内蒙古科技大学 | Furnace stewing material charging method for rapidly recovering furnace condition of blast furnace |
| CN111041139A (en) * | 2019-12-17 | 2020-04-21 | 首钢集团有限公司 | Material distribution method for blast furnace blowing-in |
| CN111778371A (en) * | 2020-05-21 | 2020-10-16 | 南京钢铁股份有限公司 | Method for quickly spraying coal and enriching oxygen during blow-in of blast furnace |
| CN114959131A (en) * | 2022-04-25 | 2022-08-30 | 广东韶钢松山股份有限公司 | Filling process for blow-in sleeper of blast furnace |
| CN114959131B (en) * | 2022-04-25 | 2023-10-20 | 广东韶钢松山股份有限公司 | Filling process for sleeper in blast furnace opening |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105506203B (en) | 2018-04-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105506203A (en) | Blast furnace blow-in burdening method | |
| CN103436646B (en) | Banking method for damping down of large blast furnace | |
| CN104862436B (en) | A kind of large blast furnace banking distribution | |
| CN101476001B (en) | Method for smelting medium titanium slag by blast furnace | |
| CN104313214B (en) | A kind of blast furnace quantification modularization accurately controls blow-on, banking, stopping process | |
| CN102399921A (en) | Blast furnace blowing-in burdening method | |
| CN107299169B (en) | The calculation method of blast furnace short term damping-down material | |
| CN111910072A (en) | Preparation and use methods of pre-reduced fluxed pellets with steel slag as partial raw material | |
| CN104357657A (en) | Method for preparing oxidized pellets from converter dedusting ash | |
| CN101275172A (en) | Charging method for blast furnace burden | |
| CN104372127A (en) | Method for improving furnace maintenance efficiency of blast furnace | |
| CN104878153A (en) | Converter dephosphorization method for high-phosphorus low-silicon molten iron | |
| CN101942534B (en) | Proportioning method adopted during blow-in for large and medium maintenance of blast furnace | |
| CN104152614B (en) | The distributing process of blast furnace burden | |
| CN111235383B (en) | Method for producing sintered ore by adding and using low magnesium resource | |
| CN104232821B (en) | 3000m 3above large blast furnace blow-on dress distribution | |
| CN110172535A (en) | A kind of blast furnace drop stockline to bosh replacement cooling wall binder and answer wind distribution | |
| CN111041139A (en) | Material distribution method for blast furnace blowing-in | |
| CN105347684A (en) | Blast-furnace-slag glass ceramics and preparation method therefor | |
| CN102864276A (en) | Converter inactive lime steelmaking method | |
| CN1962553A (en) | MgO-CaO-Fe2O3 synthetic material for electric cooker bottom | |
| CN114085938A (en) | Process for smelting limestone type fluorine-containing fluxed pellets under high-pellet-ratio condition of large blast furnace | |
| CN107574284A (en) | It is a kind of using metallurgical waste as the hot-metal insulating agent of raw material and its manufacture, application method | |
| CN102888474B (en) | Method for controlling aluminum oxide in first furnace blow-in slag of blast furnace | |
| CN106676215B (en) | A kind of vanadium titano-magnetite Bf Burden and blast furnace smelting method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 100041 Shijingshan Road, Beijing, No. 68, No. Applicant after: Shougang Group Co. Ltd. Address before: 100041 Shijingshan Road, Beijing, No. 68, No. Applicant before: Capital Iron & Steel General Company |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |