CN108004392A - A kind of agglomerating plant and technique for reducing sintering solid burnup - Google Patents
A kind of agglomerating plant and technique for reducing sintering solid burnup Download PDFInfo
- Publication number
- CN108004392A CN108004392A CN201810127360.6A CN201810127360A CN108004392A CN 108004392 A CN108004392 A CN 108004392A CN 201810127360 A CN201810127360 A CN 201810127360A CN 108004392 A CN108004392 A CN 108004392A
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- China
- Prior art keywords
- grades
- feed bin
- returning mine
- mineral aggregate
- distributing device
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- Granted
Links
- 238000005245 sintering Methods 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000007787 solid Substances 0.000 title claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 43
- 239000004744 fabric Substances 0.000 claims abstract description 21
- 238000002156 mixing Methods 0.000 claims abstract description 20
- 239000000203 mixture Substances 0.000 claims abstract description 12
- 230000008569 process Effects 0.000 claims abstract description 11
- 238000012216 screening Methods 0.000 claims abstract description 9
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 26
- 239000011707 mineral Substances 0.000 claims description 26
- 210000002615 epidermis Anatomy 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 3
- 238000003908 quality control method Methods 0.000 claims description 3
- 239000000446 fuel Substances 0.000 abstract description 9
- 238000009825 accumulation Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 8
- 230000035699 permeability Effects 0.000 abstract description 4
- 239000002245 particle Substances 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000005204 segregation Methods 0.000 description 4
- 238000005469 granulation Methods 0.000 description 2
- 230000003179 granulation Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 206010028347 Muscle twitching Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 239000004449 solid propellant Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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 present invention relates to a kind of agglomerating plant for reducing sintering solid burnup, including ring cold machine and crusher, and blending bunker, distributing device and the pallet set gradually from top to bottom, further include grading oscillating screen and the feed bin of returning mine above distributing device cloth track, material after the grading oscillating screen screening is divided into+5mm, 3 ~ 5mm and tri- grades of 3mm, conveying device is provided between the feeding mouth of the material outlet of 3 ~ 5mm grades and feed bin of returning mine, pendulum glassware is equipped with below the discharge port of the feed bin of returning mine.The present invention is by setting grading oscillating screen and feed bin of returning mine, the particle screening of 3 5mm in sinter return fine is come out, with dry format by putting the reasonable cloth of glassware in sinter bed middle and lower part, cause the content of sinter bed top and the bottom fuel to be segregated, make full use of sintering accumulation of heat effect；Increase the wet volume capacity of the lower part bed of material at the same time, improve the gas permeability of the lower part bed of material, and quantity of return mines is reduced in sinter mixture, and the mixing of mixture and granulating process efficiency improve.
Description
Technical field
The present invention relates to metallurgy sintered technical field, more particularly to a kind of agglomerating plant for reducing sintering solid burnup and
Technique.
Background technology
Sinter is China's blast furnace process main body iron-bearing material, and sintering is by Iron Ore Powder, flux and fuel mixing cloth
Enter sintering machine and be sintered acquisition.Sintering solid burnup is always the research emphasis of sintering worker, and the accumulation of heat based on sintering is former
, there are a variety of sintering feed methods so that sinter bed top and the bottom form fuel segregation, reduction lower fuel contains in reason
Amount, but effect is not fine.Meanwhile sintering burnup is also influenced by sintering finished rate, excessive sinter return fine influences sintering combustion
Consumption, current -5mm sinter return fines are all directly to return raw materials for sintering dispensing link in sintering plant, and bulky grain sinter return fine enters back into mixed
Granulation is closed, wastes granulating process energy consumption, sintered compound and its granulating process burden is added, reduces mixing granulation efficiency, together
When processes of mixing and granulating in absorb water, it is covert to increase pallet bed of material total moisture content, cause burnup to increase.
The content of the invention
The defects of present invention is directed to the prior art, there is provided a kind of agglomerating plant and technique for reducing sintering solid burnup, makes
The content segregation of sinter bed upper and lower part fuel, takes full advantage of sintering accumulation of heat effect.
The present invention is achieved through the following technical solutions, there is provided a kind of agglomerating plant for reducing sintering solid burnup, bag
Ring cold machine and crusher are included, and blending bunker, distributing device and the pallet set gradually from top to bottom, further include classification and shake
Dynamic sieve and the feed bin of returning mine above distributing device cloth track, the material after the grading oscillating screen screening be divided into+5mm, 3 ~
5mm and three grades of -3mm, are provided with conveying device, institute between the material outlet of 3 ~ 5mm grades and the feeding mouth for feed bin of returning mine
State and pendulum glassware is equipped with below the discharge port for feed bin of returning mine.
This programme is gone out the particle screening of 3-5mm in original sinter return fine by setting return mine feed bin and grading oscillating screen
Come, be sent into and returned mine feed bin by conveying device, then caused with dry format by putting glassware cloth in sinter bed middle and lower part
The content segregation of sinter bed top and the bottom fuel, makes full use of sintering accumulation of heat effect.
As an optimization, the discharge port of the feed bin of returning mine is additionally provided with stream control device.Pass through stream control device control
The stream quality for bin discharge port external of returning mine is made, makes its preferably cloth in the middle and lower part of sinter bed.
Preferably, the stream control device includes the warehouse grafting with feed bin of returning mine and the stream plate being in tilted layout.
The stream control device of this preferred solution is simple in structure, easy to operate, can be achieved by the position for twitching stream plate to stream
Control.
As an optimization, the discharge port of the blending bunker is provided with feeding roller.By setting feeding roller preferably to control
The stream of blending bunker outlet processed, and then the convenient correspondence for grasping blending bunker and feed bin material flow of returning mine.
A kind of sintering process for reducing sintering solid burnup, it is specific as follows：
（1）Finished product sinter is crushed using crusher, and is cooled down broken mineral aggregate using ring cold machine；
（2）Grading oscillating screen will be sent into by the mineral aggregate of ring cold machine cooling, mineral aggregate screening is+5mm, 3 ~ 5mm by grading oscillating screen
With three grades of -3mm；
（3）The mineral aggregate of+5mm grades is sent into sintering finished storehouse, the mineral aggregate of 3-5mm grades is sent into feed bin of returning mine, -3mm grades
Mineral aggregate sends sintered material system back to；
（4）When distributing device carries out cloth, by the discharge port stream quality control for feed bin of returning mine in blending bunker discharge port stream matter
Less than the 8% of amount, while trickled down the mineral aggregate of the 3-5mm grades fallen from feed bin of returning mine in distributing device cloth material by putting glassware
The upper epidermis of stream, due to pallet traffic direction and distributing device cloth direction on the contrary, making the 3-5mm grades positioned at upper epidermis
Mineral aggregate is located at the middle and lower part of the pallet bed of material after falling, make full use of sintering accumulation of heat effect not to be incorporated solid to make up this part
The small sintering ore material of fuel adds, and makes lower part bed of material temperature capacity increase, and gas permeability is improved.
Beneficial effects of the present invention are：By setting grading oscillating screen and feed bin of returning mine, by of 3-5mm in sinter return fine
Grain, which screens out, to be come, and with dry format by putting the reasonable cloth of glassware in sinter bed middle and lower part, causes sinter bed top and the bottom
The content segregation of fuel, makes full use of sintering accumulation of heat effect；Increase the wet volume capacity of the lower part bed of material at the same time, improve the saturating of the lower part bed of material
Gas, and quantity of return mines is reduced in sinter mixture, and the mixing of mixture and granulating process efficiency improve.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention；
Shown in figure：
1st, mixture, 2, blending bunker, 3, feeding roller, 4, stream control device, 5, distributing device, 6, flat glassware, 7, igniter, 8,
Pallet, 9, the material of 3 ~ 5mm grades, 10, feed bin of returning mine, 11, crusher, 12, ring cold machine, 13, pendulum glassware, 14, classification
Vibrating screen, 15, feed proportioning system, 16, finished bin.
Embodiment
In order to clarify the technical characteristics of the invention, below by embodiment, this programme is illustrated.
A kind of agglomerating plant for reducing sintering solid burnup as shown in Figure 1, including finished bin 16, feed proportioning system 15, ring are cold
Machine 12 and crusher 11, and blending bunker 2, distributing device 5 and the pallet 8 set gradually from top to bottom, on pallet 8
Side is provided with flat glassware 6 and igniter 7, and traffic direction and the distributing device cloth direction of pallet are on the contrary, as shown in the figure, sintering
Trolley is turned left operation, distributing device cloth to the right；Further include grading oscillating screen 14 and returning mine above distributing device cloth track
Feed bin 10.
Material after grading oscillating screen 14 sieves is divided into+5mm, 3 ~ 5mm and three grades of -3mm, i.e., more than 5mm, 3 ~ 5mm
With less than 3mm, wherein, be provided with conveying device between the feeding mouth of the material outlet of 3 ~ 5mm grades and feed bin 10 of returning mine, pass through
The material 9 of 3 ~ 5mm grades is sent into feed bin of returning mine by conveying device, and preferably, the conveying device in the present embodiment is band
Formula conveyer, it is simple in structure, and can be with continuous conveying.Belt conveying is set between the material outlet and finished bin 16 of+5mm grades
Machine, finished bin is sent the materials of+5mm grades into by ribbon conveyer, the material outlet and feed proportioning system 15 of -3mm grades it
Between ribbon conveyer is set, feed proportioning system back to is sent the material of -3mm grades by ribbon conveyer.
In order to control the discharge relation of mixture 1 and the material of 3 ~ 5mm grades 9, in blending bunker 2 and feed bin 10 of returning mine
Discharge port is respectively arranged with stream control device 4, and the stream control device includes and warehouse grafting and the stream that is in tilted layout
Plate.The discharge port of the blending bunker is provided with feeding roller 3, pendulum glassware is equipped with below the discharge port of the feed bin of returning mine
13, by adjusting the middle and lower part that glassware can make the material in return fines material storehouse fall within the pallet bed of material is put.
A kind of sintering process for reducing sintering solid burnup, it is specific as follows：
（1）Finished product sinter is crushed using crusher, and is cooled down broken mineral aggregate using ring cold machine；
（2）Grading oscillating screen will be sent into by the mineral aggregate of ring cold machine cooling, mineral aggregate screening is+5mm, 3 ~ 5mm by grading oscillating screen
With three grades of -3mm；
（3）The mineral aggregate of+5mm grades is sent into sintering finished storehouse, the mineral aggregate of 3-5mm grades is sent into feed bin of returning mine, -3mm grades
Mineral aggregate sends sintered material system back to；
（4）When distributing device carries out cloth, by the discharge port stream quality control for feed bin of returning mine in blending bunker discharge port stream matter
Less than the 8% of amount, while trickled down the mineral aggregate of the 3-5mm grades fallen from feed bin of returning mine in distributing device cloth material by putting glassware
The upper epidermis of stream, due to pallet traffic direction and distributing device cloth direction on the contrary, making the 3-5mm grades positioned at upper epidermis
Mineral aggregate mixes in dropping process with the sinter mixture that blending bunker is fallen, and is being located at after falling in the pallet bed of material
Lower part, the mineral aggregates of 3-5mm grades are distributed into the position of sinter mixture closer to sinter mixture stream initial position, both mixes
Mixed degree is bigger, and the mineral aggregate for 3-5mm grades of returning mine is bigger the bottom of to bed of material surface direction thickness in mixed material of sintering flat car layer, fills
Point added using the small sintering ore material for sintering accumulation of heat effect to make up this part and not being incorporated solid fuel, and make lower part bed of material temperature
Capacity increase, gas permeability are improved.
The present invention is come out the particle screening of 3-5mm in sinter return fine by setting grading oscillating screen and return mine feed bin, with
Dry format causes the content of sinter bed top and the bottom fuel inclined by putting the reasonable cloth of glassware in sinter bed middle and lower part
Analysis, makes full use of sintering accumulation of heat effect；Increase the wet volume capacity of the lower part bed of material at the same time, improve the gas permeability of the lower part bed of material, and burn
Tie quantity of return mines in mixture to reduce, the mixing of mixture and granulating process efficiency improve.
Certainly, described above is also not limited to the example above, the technical characteristic of the invention without description can by or
Realized using the prior art, details are not described herein；Above example and attached drawing are merely to illustrate technical scheme
It is limitation of the present invention, the present invention is described in detail with reference to preferred embodiment, the ordinary skill people of this area
Member is it should be appreciated that change, remodeling, the addition that those skilled in the art are made in the essential scope of the present invention
Or replace the claims that without departure from spirit of the invention, should also belong to the present invention.
Claims (5)
1. a kind of agglomerating plant for reducing sintering solid burnup, including ring cold machine（12）And crusher（11）, and from top to bottom
The blending bunker set gradually（2）, distributing device（5）And pallet（8）, it is characterised in that：Further include grading oscillating screen（14）
With the feed bin of returning mine above distributing device cloth track（10）, the grading oscillating screen（14）Material after screening is divided into+
5mm, 3 ~ 5mm and three grades of -3mm, the material outlet of 3 ~ 5mm grades and feed bin of returning mine（10）Feeding mouth between be provided with it is defeated
Device is sent, pendulum glassware is equipped with below the discharge port of the feed bin of returning mine（13）.
A kind of 2. agglomerating plant for reducing sintering solid burnup according to claim 1, it is characterised in that：The return fines material
Storehouse（10）Discharge port be additionally provided with stream control device（4）.
A kind of 3. agglomerating plant for reducing sintering solid burnup according to claim 2, it is characterised in that：The stream control
Device processed includes the warehouse grafting with feed bin of returning mine and the stream plate being in tilted layout.
A kind of 4. agglomerating plant for reducing sintering solid burnup according to claim 1, it is characterised in that：The mixture
The discharge port in storehouse is provided with feeding roller（3）.
A kind of 5. sintering process for reducing sintering solid burnup, it is characterised in that：
（1）Finished product sinter is crushed using crusher, and is cooled down broken mineral aggregate using ring cold machine；
（2）Grading oscillating screen will be sent into by the mineral aggregate of ring cold machine cooling, mineral aggregate screening is+5mm, 3 ~ 5mm by grading oscillating screen
With three grades of -3mm；
（3）The mineral aggregate of+5mm grades is sent into sintering finished storehouse, the mineral aggregate of 3-5mm grades is sent into feed bin of returning mine, -3mm grades
Mineral aggregate sends sintered material system back to；
（4）When distributing device carries out cloth, by the discharge port stream quality control for feed bin of returning mine in blending bunker discharge port stream matter
Less than the 8% of amount, while trickled down the mineral aggregate of the 3-5mm grades fallen from feed bin of returning mine in distributing device cloth material by putting glassware
The upper epidermis of stream, due to pallet traffic direction and distributing device cloth direction on the contrary, making the 3-5mm grades positioned at upper epidermis
Mineral aggregate is located at the middle and lower part of the pallet bed of material after falling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810127360.6A CN108004392B (en) | 2018-02-08 | 2018-02-08 | Sintering equipment and process for reducing burning up of sintered solid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810127360.6A CN108004392B (en) | 2018-02-08 | 2018-02-08 | Sintering equipment and process for reducing burning up of sintered solid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108004392A true CN108004392A (en) | 2018-05-08 |
| CN108004392B CN108004392B (en) | 2024-02-23 |
Family
ID=62066370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810127360.6A Active CN108004392B (en) | 2018-02-08 | 2018-02-08 | Sintering equipment and process for reducing burning up of sintered solid |
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| CN (1) | CN108004392B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110132013A (en) * | 2019-06-11 | 2019-08-16 | 山东钢铁股份有限公司 | A kind of hearth layer for sintering process optimization and with addition of technical equipment |
| CN111100983A (en) * | 2020-01-11 | 2020-05-05 | 武钢集团昆明钢铁股份有限公司 | Low-carbon, environment-friendly and efficient sintering method for fractional addition of sintering fuel |
| CN112179143A (en) * | 2020-09-29 | 2021-01-05 | 山东莱钢永锋钢铁有限公司 | Sintering material distribution system and sintering solid fuel adding method |
| CN114061314A (en) * | 2021-11-17 | 2022-02-18 | 马鞍山钢铁股份有限公司 | High-efficient cloth system of sinter mixture |
| CN114251948A (en) * | 2020-09-22 | 2022-03-29 | 中冶长天国际工程有限责任公司 | Sintering fuel segregation distributing device and method |
| CN114993053A (en) * | 2022-04-11 | 2022-09-02 | 重庆钢铁股份有限公司 | Sintering shutdown operation method |
| CN115261615A (en) * | 2022-07-30 | 2022-11-01 | 山东泰山钢铁集团有限公司 | Sintering and batching method for return fines graded layered distribution |
| CN115921300A (en) * | 2022-12-02 | 2023-04-07 | 天津市新天钢联合特钢有限公司 | Efficient utilization method of sintered return ores |
| CN116144921A (en) * | 2022-12-07 | 2023-05-23 | 中冶长天国际工程有限责任公司 | Material distribution method for composite agglomeration of sintering machine and composite agglomerate ore |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110132013A (en) * | 2019-06-11 | 2019-08-16 | 山东钢铁股份有限公司 | A kind of hearth layer for sintering process optimization and with addition of technical equipment |
| CN111100983A (en) * | 2020-01-11 | 2020-05-05 | 武钢集团昆明钢铁股份有限公司 | Low-carbon, environment-friendly and efficient sintering method for fractional addition of sintering fuel |
| CN111100983B (en) * | 2020-01-11 | 2022-03-18 | 武钢集团昆明钢铁股份有限公司 | Low-carbon, environment-friendly and efficient sintering method for fractional addition of sintering fuel |
| CN114251948A (en) * | 2020-09-22 | 2022-03-29 | 中冶长天国际工程有限责任公司 | Sintering fuel segregation distributing device and method |
| CN112179143A (en) * | 2020-09-29 | 2021-01-05 | 山东莱钢永锋钢铁有限公司 | Sintering material distribution system and sintering solid fuel adding method |
| CN112179143B (en) * | 2020-09-29 | 2022-03-08 | 山东莱钢永锋钢铁有限公司 | Sintering material distribution system and sintering solid fuel adding method |
| CN114061314A (en) * | 2021-11-17 | 2022-02-18 | 马鞍山钢铁股份有限公司 | High-efficient cloth system of sinter mixture |
| CN114061314B (en) * | 2021-11-17 | 2023-06-23 | 马鞍山钢铁股份有限公司 | High-efficient cloth system of sinter mixture |
| CN114993053A (en) * | 2022-04-11 | 2022-09-02 | 重庆钢铁股份有限公司 | Sintering shutdown operation method |
| CN114993053B (en) * | 2022-04-11 | 2024-04-30 | 重庆钢铁股份有限公司 | Sintering shutdown operation method |
| CN115261615A (en) * | 2022-07-30 | 2022-11-01 | 山东泰山钢铁集团有限公司 | Sintering and batching method for return fines graded layered distribution |
| CN115261615B (en) * | 2022-07-30 | 2024-06-11 | 山东泰山钢铁集团有限公司 | Sintering batching method for return ore grading layering distribution |
| CN115921300A (en) * | 2022-12-02 | 2023-04-07 | 天津市新天钢联合特钢有限公司 | Efficient utilization method of sintered return ores |
| CN116144921A (en) * | 2022-12-07 | 2023-05-23 | 中冶长天国际工程有限责任公司 | Material distribution method for composite agglomeration of sintering machine and composite agglomerate ore |
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