CN104263913A - Preparation method for acidic hemispherical sinters - Google Patents
Preparation method for acidic hemispherical sinters Download PDFInfo
- Publication number
- CN104263913A CN104263913A CN201410501541.2A CN201410501541A CN104263913A CN 104263913 A CN104263913 A CN 104263913A CN 201410501541 A CN201410501541 A CN 201410501541A CN 104263913 A CN104263913 A CN 104263913A
- Authority
- CN
- China
- Prior art keywords
- parts
- sintering
- preparation
- powder
- batching
- 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
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/16—Sintering; Agglomerating
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a preparation method for acidic hemispherical sinters. The preparation method comprises the following steps: dosing; multi-stage mixing; and sintering. The iron material is prepared from the following components in parts by weight: 10-20 parts of rich ore powder, 60-80 parts of low-grade powdered ores and 10-20 parts of concentrate. The prepared iron material is a premix of the iron material. The iron material and fuel and a solvent comprise the following components in parts by weight: 68-77 parts of the premix of the iron material, 11-20 parts of return mine, 0.5-1.05 parts of quicklime powder, 5-10 parts of blast furnace ash and 0.65-0.95 part of coke powder, and the prepared iron material and fuel and solvent are a sintering raw material. The preparation method comprises the following steps: sequentially feeding the sintering raw material into primary, secondary and third mixers and mixing; dosing 2.15-2.75 parts of coke powder and 0.5-2.05 parts of quicklime powder in three level mixing; and sintering the obtained three level mixture to obtain the acidic hemispherical sinters. According to the method disclosed by the invention, the balling rate is improved by 19.60%, the green ball strength is improved by 35%, the fuel utilization ratio is improved, the air permeability of a material layer is improved and the composition of sintered ores is optimized. The utilization coefficient on year-on-year basis is improved by 30%, the fuel consumption is decreased by 0.5kg/t and the metallurgical performance of the sinters is better.
Description
Technical field
The invention belongs to agglomerate preparing technical field, be specifically related to a kind of preparation method of acid hemisphere agglomerate.
Background technology
The general burden structure adopting " high basicity sinter is with addition of natural lump ore " produced by blast furnace ironmaking, and take calcium ferrite as the high basicity sinter of main binding phase, its reductibility and intensity are all relatively good, can meet the demand of blast-furnace smelting preferably.But because lump ore tissue difficulty, quality and quantity are difficult to meet large blast furnace and smelt needs, part blast furnace is forced to adopt the burden structure of " high basicity sinter is with addition of part acid sinter ore and natural lump ore " to produce.When production acid sinter ore, owing to not adding or adding flux less, more difficult formation calcium ferrite mineral, cause occurring in sintering process that resistance is large, the situations such as poor air permeability, not only Sintering Yield is low, and the reducing property of agglomerate is also poor, and particularly sinter basicity is lower, when flux proportioning is also few, the defect of acid sinter ore is more outstanding, finally causes conditions of blast furnace to have some setbacks, and restriction blast furnace ironmaking is produced.Therefore, the raw material formation of producing acid sinter ore for this outstanding technical problem and multistage compounding process improve, and the acid hemisphere agglomerate preparation method researching and developing a kind of optimization will have very important realistic meaning undoubtedly.
Summary of the invention
The object of the present invention is to provide a kind of preparation method of acid hemisphere agglomerate.
The object of the present invention is achieved like this: the preparation method of described acid hemisphere agglomerate, comprises batching, multistage batch mixing and sintering circuit, specifically comprise:
A, batching: the batching comprising iron charge batching, iron charge and fuel and solvent; Described iron charge batching comprises the component of following mass ratio: rich ore powder 10 ~ 20 parts, low-grade fine ore 60 ~ 80 parts and 10 ~ 20 parts, concentrate, prepare as iron charge admixtion; The batching of described iron charge and fuel and solvent comprises the component of following mass ratio: iron charge admixtion 68 ~ 77 parts, return mine 11 ~ 20 parts, calcium lime powder 0.5 ~ 1.05 part, blast-furnace dust 5 ~ 10 parts, coke powder 0.65 ~ 0.95 part, prepare as raw materials for sintering.
B, one-level batch mixing: sent into by the raw materials for sintering prepared in a mixer and mix, moistening raw materials for sintering of simultaneously spraying water, the mother bulb of generation is mixed once material.
C, secondary batch mixing: sent in rerolling machine by mixed once material and again mix, humidification of simultaneously spraying water, obtains secondary mixed material.
D, three grades of batch mixings: secondary mixed material sent in No. three mixers and carry out strengthening mixing, water spray allocates coke powder 2.15 ~ 2.75 parts, calcium lime powder 0.5 ~ 2.05 part by mass into while mending and wetting, obtain three compounds.
E, sintering: spread on sinter machine by three compounds, down draft sintering is carried out in igniting, and get product acid hemisphere agglomerate.
The method of the invention has following beneficial effect:
1, the method for the invention adjusts the component proportioning of raw materials for sintering and compounding process, and the calcium lime powder of joining outside during three grades of batch mixings improves the basicity of green-ball top layer material, the formation of Binder Phase when being conducive to sintering.
The improvement of coke powder to sintering velocity of joining outside 2, during three grades of batch mixings has obvious promoter action, blended with the calcium lime powder of joining outward, not only enhances burning, and being heated when more can make sintering is more even.
3, the method for the invention adopts multistage mixing procedure, carries out successive optimization to the water ratio of compound in different blended material process, and make compound better with the bonding effect of joining calcium lime powder and coke powder outward, intensity increases.
4, the method for the invention is compared with convention acidic sintering mine making method, balling ratio improves 19.60%, green ball strength improves more than 35%, and improve fuel availability, improve bed permeability, make agglomerate mineral composition be optimized simultaneously, utilization coefficient improves 30% on year-on-year basis, fuel consumption decline 0.5kg/t, the metallurgical performance of agglomerate improves.
5, operation is simple for the method for the invention, and technique interchangeability is strong, and equipment interoperability is good, has good popularizing application prospect.
Embodiment
The present invention is further illustrated below, but limited the present invention never in any form, and any conversion done based on training centre of the present invention or replacement, all belong to protection scope of the present invention.
The preparation method of acid hemisphere agglomerate of the present invention, comprises batching, multistage batch mixing and sintering circuit, specifically comprises:
Described burden process comprises the batching of iron charge batching, iron charge and fuel and solvent; Described iron charge batching comprises the component of following mass ratio: rich ore powder 10 ~ 20 parts, low-grade fine ore 60 ~ 80 parts and 10 ~ 20 parts, concentrate, prepare as iron charge admixtion; The batching of described iron charge and fuel and solvent comprises the component of following mass ratio: iron charge admixtion 68 ~ 77 parts, return mine 11 ~ 20 parts, calcium lime powder 0.5 ~ 1.05 part, blast-furnace dust 5 ~ 10 parts, coke powder 0.65 ~ 0.95 part, prepare as raw materials for sintering.
Described one-level compounding process refers to the raw materials for sintering prepared to send in a mixer and mixes, and moistening raw materials for sintering of simultaneously spraying water, the mother bulb of generation is mixed once material.
Described secondary compounding process refers to and again mixes in mixed once material feeding rerolling machine, and humidification of simultaneously spraying water, obtains secondary mixed material.
Three grades of described compounding process refer to secondary mixed material to send in No. three mixers and carry out strengthening mixing, water spray mend wet while allocate coke powder 2.15 ~ 2.75 parts, calcium lime powder 0.5 ~ 2.05 part by mass into, obtain three compounds.
Described sintering circuit refers to and spreads on sinter machine by three compounds, and down draft sintering is carried out in igniting, and get product acid hemisphere agglomerate.
Ratio >=80.00% shared by powder of particle diameter≤2mm in the calcium lime powder of described batching and three grades of compounding process uses.
Ratio >=80.00% shared by powder of particle diameter≤2mm in the coke powder of described batching and three grades of compounding process uses.
In described one-level compounding process, the work inclination angle of a mixer is 2 ~ 3 °, and rotating speed is 8 ~ 15r/min.
In described secondary compounding process, the work inclination angle of rerolling machine is 3 ~ 4 °, and rotating speed is 8 ~ 15r/min.
In three grades of described compounding process, the work inclination angle of No. three mixers is 3 ~ 4 °, and rotating speed is 8 ~ 15r/min.
Moistening raw materials for sintering of spraying water in described one-level compounding process adopts spraying process to add, and makes the water ratio of mixed once material be 7.00 ~ 9.00%.
Humidification of spraying water in described secondary compounding process adopts atomization to add, and makes the water ratio of secondary mixed material be 9.00 ~ 10.00%.
In three grades of described compounding process, water spray is mended to wet and is adopted atomization to add, and makes the water ratio of three compounds be 10.00 ~ 10.50%.
Spread on sinter machine by three compounds in described sintering circuit, the bed depth adopted is 550 ~ 650cm.
In described sintering circuit, down draft sintering is carried out in igniting, and the ignition temperature adopted is 1220 ~ 1280 DEG C, and sintering temperature is 1220 ~ 1280 DEG C, and sintering negative pressure is 8 ~ 10Kpa, and the material travelling speed of sinter machine is 0.50 ~ 0.60m/min.
The basicity of the acid hemisphere agglomerate of the finished product obtained in described sintering circuit is 0.45 ~ 0.65 times.
embodiment 1
Iron charge batching comprises the component of following mass ratio: rich ore powder 15 parts, low-grade fine ore 70 parts and 15 parts, concentrate, prepare as iron charge admixtion.The batching of iron charge and fuel and solvent comprises the component of following mass ratio: iron charge admixtion 72.6 parts, return mine 13 parts, calcium lime powder 0.76 part, blast-furnace dust 9.1 parts, coke powder 0.78 part, prepare as raw materials for sintering.Wherein, in the calcium lime powder used, the ratio shared by powder of particle diameter≤2mm is 85.00%, and in the coke powder used, the ratio shared by powder of particle diameter≤2mm is 92.00%.
The raw materials for sintering prepared is sent in a mixer and mix, the work inclination angle of a mixer is 2 °, and rotating speed is 11r/min, adopts spraying process to add water moistening raw materials for sintering simultaneously, the mother bulb generated is mixed once material, and the water ratio of mixed once material is 7.51 ~ 8.78%.Then sent in rerolling machine by mixed once material and again mix, the work inclination angle of rerolling machine is 3 °, and rotating speed is 12r/min, and adopt atomization atomized water spray humidification, obtain secondary mixed material, the water ratio of secondary mixed material is 9.00 ~ 9.62% simultaneously.Then secondary mixed material is sent in No. three mixers and carry out strengthening mixing, the work inclination angle of No. three mixers is 4 °, rotating speed is 10r/min, atomized water spray allocates coke powder 2.37 parts, calcium lime powder 1.39 parts by mass into while mending and wetting, obtain three compounds, the water ratio of three compounds is 10.22 ~ 10.50%.Finally three compounds are spread to 20m
2on sinter machine, bed depth is 550cm, and down draft sintering is carried out in igniting, and ignition temperature is 1236 DEG C, and sintering temperature is 1230 DEG C, and sintering negative pressure is 8.4Kpa, and the material travelling speed of sinter machine is 0.59m/min, and get product acid hemisphere agglomerate.
When adopting the method for the invention to prepare acid hemisphere agglomerate, other sintering technology and economic indicator is as follows: utilization coefficient 1.56t/(m
2h), vertical sintering speed 21.44mm/min, coke powder unit consumption 35.35kg/t, sinter basicity 0.54 times, reduction degree 60.74%.
embodiment 2
Iron charge batching comprises the component of following mass ratio: rich ore powder 20 parts, low-grade fine ore 61 parts and 15 parts, concentrate, prepare as iron charge admixtion.The batching of iron charge and fuel and solvent comprises the component of following mass ratio: iron charge admixtion 68 parts, return mine 20 parts, calcium lime powder 0.5 part, blast-furnace dust 8.13 parts, coke powder 0.69 part, prepare as raw materials for sintering.Wherein, in the calcium lime powder used, the ratio shared by powder of particle diameter≤2mm is 80.00%, and in the coke powder used, the ratio shared by powder of particle diameter≤2mm is 86.00%.
The raw materials for sintering prepared is sent in a mixer and mix, the work inclination angle of a mixer is 3 °, and rotating speed is 8r/min, adopts spraying process to add water moistening raw materials for sintering simultaneously, the mother bulb generated is mixed once material, and the water ratio of mixed once material is 7.01 ~ 7.90%.Then sent in rerolling machine by mixed once material and again mix, the work inclination angle of rerolling machine is 4 °, and rotating speed is 9r/min, and adopt atomization atomized water spray humidification, obtain secondary mixed material, the water ratio of secondary mixed material is 9.35 ~ 9.98% simultaneously.Then secondary mixed material is sent in No. three mixers and carry out strengthening mixing, the work inclination angle of No. three mixers is 4 °, rotating speed is 10r/min, atomized water spray allocates coke powder 2.18 parts, calcium lime powder 0.5 part by mass into while mending and wetting, obtain three compounds, the water ratio of three compounds is 10.17 ~ 10.41%.Finally three compounds are spread to 20m
2on sinter machine, bed depth is 600cm, and down draft sintering is carried out in igniting, and ignition temperature is 1251 DEG C, and sintering temperature is 1246 DEG C, and sintering negative pressure is 9.2Kpa, and the material travelling speed of sinter machine is 0.54m/min, and get product acid hemisphere agglomerate.
When adopting the method for the invention to prepare acid hemisphere agglomerate, other sintering technology and economic indicator is as follows: utilization coefficient 1.00t/(m
2h), vertical sintering speed 19.80mm/min, coke powder unit consumption 34.84kg/t, sinter basicity 0.49 times, reduction degree 59.52%.
embodiment 3
Iron charge batching comprises the component of following mass ratio: rich ore powder 10 parts, low-grade fine ore 80 parts and 10 parts, concentrate, prepare as iron charge admixtion.The batching of iron charge and fuel and solvent comprises the component of following mass ratio: iron charge admixtion 74.13 parts, return mine 15.25 parts, calcium lime powder 1.01 parts, blast-furnace dust 5.25 parts, coke powder 0.94 part, prepare as raw materials for sintering.Wherein, in the calcium lime powder used, the ratio shared by powder of particle diameter≤2mm is 87.00%, and in the coke powder used, the ratio shared by powder of particle diameter≤2mm is 90.00%.
The raw materials for sintering prepared is sent in a mixer and mix, the work inclination angle of a mixer is 3 °, and rotating speed is 13r/min, adopts spraying process to add water moistening raw materials for sintering simultaneously, the mother bulb generated is mixed once material, and the water ratio of mixed once material is 8.14 ~ 8.80%.Then sent in rerolling machine by mixed once material and again mix, the work inclination angle of rerolling machine is 4 °, and rotating speed is 14r/min, and adopt atomization atomized water spray humidification, obtain secondary mixed material, the water ratio of secondary mixed material is 9.18 ~ 9.72% simultaneously.Then secondary mixed material is sent in No. three mixers and carry out strengthening mixing, the work inclination angle of No. three mixers is 4 °, rotating speed is 15r/min, atomized water spray allocates coke powder 2.18 parts, unslaked lime 1.24 parts by mass into while mending and wetting, obtain three compounds, the water ratio of three compounds is 10.00 ~ 10.39%.Finally three compounds are spread to 20m
2on sinter machine, bed depth is 650cm, and down draft sintering is carried out in igniting, and ignition temperature is 1275 DEG C, and sintering temperature is 1280 DEG C, and sintering negative pressure is 9.6Kpa, and the material travelling speed of sinter machine is 0.53m/min, and get product acid hemisphere agglomerate.
When adopting the method for the invention to prepare acid hemisphere agglomerate, other sintering technology and economic indicator is as follows: utilization coefficient 1.52t/(m
2h), vertical sintering speed 21.86mm/min, coke powder unit consumption 34.76kg/t, sinter basicity 0.58 times, reduction degree 63.65%.
embodiment 4
Iron charge batching comprises the component of following mass ratio: rich ore powder 20 parts, low-grade fine ore 75 parts and 19 parts, concentrate, prepare as iron charge admixtion.The batching of iron charge and fuel and solvent comprises the component of following mass ratio: iron charge admixtion 76.78 parts, return mine 11.33 parts, calcium lime powder 0.87 part, blast-furnace dust 5.56 parts, coke powder 0.69 part, prepare as raw materials for sintering.Wherein, in the calcium lime powder used, the ratio shared by powder of particle diameter≤2mm is 91.00%, and in the coke powder used, the ratio shared by powder of particle diameter≤2mm is 80.00%.
The raw materials for sintering prepared is sent in a mixer and mix, the work inclination angle of a mixer is 2 °, and rotating speed is 13r/min, adopts spraying process to add water moistening raw materials for sintering simultaneously, the mother bulb generated is mixed once material, and the water ratio of mixed once material is 7.95 ~ 9.00%.Then sent in rerolling machine by mixed once material and again mix, the work inclination angle of rerolling machine is 4 °, and rotating speed is 11r/min, and adopt atomization atomized water spray humidification, obtain secondary mixed material, the water ratio of secondary mixed material is 9.33 ~ 10.00% simultaneously.Then secondary mixed material is sent in No. three mixers and carry out strengthening mixing, the work inclination angle of No. three mixers is 3 °, rotating speed is 9r/min, atomized water spray allocates coke powder 2.75 parts, calcium lime powder 2.02 parts by mass into while mending and wetting, obtain three compounds, the water ratio of three compounds is 10.08 ~ 10.46%.Finally three compounds are spread to 20m
2on sinter machine, bed depth is 650cm, and down draft sintering is carried out in igniting, and ignition temperature is 1220 DEG C, and sintering temperature is 1224 DEG C, and sintering negative pressure is 8.7Kpa, and the material travelling speed of sinter machine is 0.56m/min, and get product acid hemisphere agglomerate.
When adopting the method for the invention to prepare acid hemisphere agglomerate, other sintering technology and economic indicator is as follows: utilization coefficient 1.49t/(m
2h), vertical sintering speed 22.00mm/min, coke powder unit consumption 35.81kg/t, sinter basicity 0.62 times, reduction degree 60.23%.
Claims (10)
1. a preparation method for acid hemisphere agglomerate, is characterized in that comprising batching, multistage batch mixing and sintering circuit, specifically comprises:
A, batching: the batching comprising iron charge batching, iron charge and fuel and solvent; Described iron charge batching comprises the component of following mass ratio: rich ore powder 10 ~ 20 parts, low-grade fine ore 60 ~ 80 parts and 10 ~ 20 parts, concentrate, prepare as iron charge admixtion; The batching of described iron charge and fuel and solvent comprises the component of following mass ratio: iron charge admixtion 68 ~ 77 parts, return mine 11 ~ 20 parts, calcium lime powder 0.5 ~ 1.05 part, blast-furnace dust 5 ~ 10 parts, coke powder 0.65 ~ 0.95 part, prepare as raw materials for sintering;
B, one-level batch mixing: the raw materials for sintering prepared is sent in a mixer and mix, moistening raw materials for sintering of simultaneously spraying water, the mother bulb of generation is mixed once material;
C, secondary batch mixing: sent in rerolling machine by mixed once material and again mix, humidification of simultaneously spraying water, obtains secondary mixed material;
D, three grades of batch mixings: secondary mixed material is sent in No. three mixers and carry out strengthening mixing, water spray allocates coke powder 2.15 ~ 2.75 parts, calcium lime powder 0.5 ~ 2.05 part by mass into while mending and wetting, obtain three compounds;
E, sintering: spread on sinter machine by three compounds, down draft sintering is carried out in igniting, and get product acid hemisphere agglomerate.
2. preparation method according to claim 1, is characterized in that ratio >=80.00% shared by powder of particle diameter≤2mm in the calcium lime powder described in operation A and step D.
3. preparation method according to claim 1, is characterized in that ratio >=80.00% shared by powder of particle diameter≤2mm in the coke powder described in operation A and step D.
4. preparation method according to claim 1, it is characterized in that the work inclination angle of a mixer described in process B is 2 ~ 3 °, rotating speed is 8 ~ 15r/min.
5. preparation method according to claim 1, it is characterized in that the work inclination angle of the rerolling machine described in operation C is 3 ~ 4 °, rotating speed is 8 ~ 15r/min.
6. preparation method according to claim 1, it is characterized in that the work inclination angle of No. three mixers described in step D is 3 ~ 4 °, rotating speed is 8 ~ 15r/min.
7. preparation method according to claim 1, is characterized in that the moistening raw materials for sintering of water spray described in process B adopts spraying process to add, makes the water ratio of mixed once material be 7.00 ~ 9.00%.
8. preparation method according to claim 1, is characterized in that the water spray humidification described in operation C adopts atomization to add, makes the water ratio of secondary mixed material be 9.00 ~ 10.00%.
9. preparation method according to claim 1, is characterized in that the wet atomization that adopts of water spray benefit described in step D adds, makes the water ratio of three compounds be 10.00 ~ 10.50%.
10. preparation method according to claim 1, is characterized in that the basicity of the acid hemisphere agglomerate described in operation E is 0.45 ~ 0.65 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410501541.2A CN104263913A (en) | 2014-09-27 | 2014-09-27 | Preparation method for acidic hemispherical sinters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410501541.2A CN104263913A (en) | 2014-09-27 | 2014-09-27 | Preparation method for acidic hemispherical sinters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104263913A true CN104263913A (en) | 2015-01-07 |
Family
ID=52155486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410501541.2A Pending CN104263913A (en) | 2014-09-27 | 2014-09-27 | Preparation method for acidic hemispherical sinters |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104263913A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106350660A (en) * | 2016-11-29 | 2017-01-25 | 江苏省冶金设计院有限公司 | Method for preparing full-vanadium-titanium pellets |
| CN110283991A (en) * | 2019-07-20 | 2019-09-27 | 武钢集团昆明钢铁股份有限公司 | A kind of production method of acid sinter ore |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1236817A (en) * | 1999-06-14 | 1999-12-01 | 中南工业大学 | Process for making acidic spheroidized ore |
| CN1249352A (en) * | 1999-06-11 | 2000-04-05 | 酒泉钢铁(集团)有限责任公司 | Technology for producing acidic pellet agglomerate by fractionally feeding flux |
-
2014
- 2014-09-27 CN CN201410501541.2A patent/CN104263913A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1249352A (en) * | 1999-06-11 | 2000-04-05 | 酒泉钢铁(集团)有限责任公司 | Technology for producing acidic pellet agglomerate by fractionally feeding flux |
| CN1236817A (en) * | 1999-06-14 | 1999-12-01 | 中南工业大学 | Process for making acidic spheroidized ore |
Non-Patent Citations (3)
| Title |
|---|
| 刘宁斌: "酸性半球烧结矿的试制与应用", 《昆钢科技》 * |
| 刘宁斌: "高炉灰、返矿对二烧生产的影响", 《昆钢科技》 * |
| 王福才: "燃、熔分加酸性半球烧结中混合料加水的探讨", 《2006年度全国烧结球团技术交流年会论文集》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106350660A (en) * | 2016-11-29 | 2017-01-25 | 江苏省冶金设计院有限公司 | Method for preparing full-vanadium-titanium pellets |
| CN110283991A (en) * | 2019-07-20 | 2019-09-27 | 武钢集团昆明钢铁股份有限公司 | A kind of production method of acid sinter ore |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101805826B (en) | Method for sintering taihe vanadium and titanium magnet concentrates | |
| CN101294243B (en) | Pelletisation process for iron ore concentrate sintered mix | |
| CN104073627A (en) | Production method of fluxed composite pellet | |
| CN107460310A (en) | A kind of method for preparing sintering deposit | |
| CN103981310B (en) | A kind of method of smelting vanadium-titanium magnetite by blast furnace | |
| CN103334004B (en) | Method for producing sinter from Yuanjia village concentrate powder by using large sintering machine | |
| CN101906533B (en) | Low-silicon magnesium-containing pellets and production method thereof | |
| CN103614548B (en) | Method for producing sinter from hematite concentrate powder | |
| CN102492833B (en) | Method for applying ferric dust in sintering | |
| CN104846191A (en) | Vanadium-titanium sinter and preparation method thereof | |
| CN108070713A (en) | A kind of iron ore sintering method using calcined magnesite ball | |
| CN104278146B (en) | A kind of sintering flux preparation method for iron ore sintering | |
| CN103014323A (en) | Sintering method for high-grade vanadium titanium iron ore concentrate | |
| CN103924063A (en) | Method for sintering all-vanadium titanium magnetite concentrate | |
| CN109576488A (en) | A method of sinter is produced using high proportion Bayan Obo iron ore concentrate | |
| CN104630451A (en) | Preparation method of high-chromium vanadium-titanium sintered mixed pellet material | |
| CN102586589A (en) | Method for applying Bayan Obo ore ultra-fine iron powder in sintering | |
| CN110317948A (en) | A kind of sintering method of plum mountain iron ore concentrate | |
| CN107488784B (en) | A kind of blast furnace ironmaking superfluxed pellets and its production method | |
| CN100513598C (en) | Process of preparing iron smelting pellet with hematite concentrate | |
| CN102312085B (en) | Method for producing magnet concentrate fine sintered ore | |
| CN101994002B (en) | Method for sintering ore blending of Jianshan concentrate fines and limonite | |
| CN104263913A (en) | Preparation method for acidic hemispherical sinters | |
| CN101665867A (en) | Method for increasing grade of sinter | |
| CN103409616A (en) | Method for inhibiting low-temperature reduction degradation of sintering ore of iron ore |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150107 |