CN101020931A - Blast furnace dry quenching powder spraying process and equipment - Google Patents
Blast furnace dry quenching powder spraying process and equipment Download PDFInfo
- Publication number
- CN101020931A CN101020931A CNA200710010667XA CN200710010667A CN101020931A CN 101020931 A CN101020931 A CN 101020931A CN A200710010667X A CNA200710010667X A CN A200710010667XA CN 200710010667 A CN200710010667 A CN 200710010667A CN 101020931 A CN101020931 A CN 101020931A
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- Prior art keywords
- coke powder
- blast furnace
- powder
- coke
- coal
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- 239000000843 powder Substances 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000010791 quenching Methods 0.000 title claims abstract description 11
- 230000000171 quenching effect Effects 0.000 title claims abstract description 11
- 238000005507 spraying Methods 0.000 title 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000003245 coal Substances 0.000 claims abstract description 23
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000007664 blowing Methods 0.000 claims abstract description 10
- 238000002347 injection Methods 0.000 claims abstract description 9
- 239000007924 injection Substances 0.000 claims abstract description 9
- 229910052742 iron Inorganic materials 0.000 claims abstract description 5
- 239000000446 fuel Substances 0.000 claims abstract description 4
- 238000003860 storage Methods 0.000 claims description 12
- 239000000571 coke Substances 0.000 claims description 11
- 239000002817 coal dust Substances 0.000 claims description 8
- 238000005516 engineering process Methods 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 3
- 239000002699 waste material Substances 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000000428 dust Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 description 4
- 238000003723 Smelting Methods 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Y02W30/54—
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- Manufacture Of Iron (AREA)
Abstract
The invention relates to a blast furnace dry quenching coke powder blowing process, which is characterized in that in the blast furnace coal injection process, coke powder for dry quenching is used as fuel for blast furnace coal injection to replace part of coal powder, and the using amount of the coke powder is less than or equal to 30 kilograms per ton of iron; after being uniformly mixed with the raw coal, the coke powder enters a medium-speed mill and is fully mixed with the raw coal. The invention has the beneficial effects that: the dust removal coke powder is used for replacing part of coal powder, so that the waste resources are recycled, the energy is saved, and the investment is reduced.
Description
Technical field
The present invention relates to blast furnace dry cooled coke powder blowing process and equipment.
Background technology
In the prior art, blast-furnace smelting adopts full coke for smelting, or part of coke, part coal powder injection.Through discovering that the mesh size of the dedusting ash of dry coke quenching and the made coal dust of pulverized coal injection coal pulverizer is basic identical, and according in the physical and chemical index parameter that the chemical plant provided as can be seen, the dedusting ash of dry coke quenching (coke powder) is higher than coal dust on calorific value.Our imagination if dedusting ash can be reclaimed, uses in the blast furnace PCI technology and goes, not only can the cyclic utilization of waste, can also reach the purpose of save energy.Every month dry coke quenching dedusting ash by chemical plant generation itself of Anshan iron and steel plant has 200 tons now, and major part is used for converter steelmaking, and economic benefit is not obvious.Finish if transport burnt dedust innovation, can produce 500 tons in every month,, just be equivalent to save 500 tons of standard coals and the required link of coal dust production technique if be used for pulverized coal injection.
Summary of the invention
The purpose of this invention is to provide a kind of blast furnace dry cooled coke powder blowing process and equipment, this technology is with the dedusting ash coke powder recovery of dry coke quenching, uses in the blast furnace PCI technology, realizes the cyclic utilization of waste, reaches purpose energy-saving and cost-reducing, environmental protection.
For achieving the above object, the present invention is achieved through the following technical solutions:
The blast furnace dry cooled coke powder blowing process is characterized in that: in blast furnace PCI technology, the fuel that the coke powder of dry coke quenching is used for pulverized coal injection substitutes the part coal dust, and the coke powder consumption is coke powder consumption≤30 kilogram of iron per ton; After coke powder and raw coal mix, enter medium-speed pulverizer, with the raw coal thorough mixing.
The equipment that described blast furnace dry cooled coke powder blowing process adopts, comprise that sack cleaner, storage powder jar, hopper wall vibrator, push-pull valve, star-like unloading valve, two-wheel stir humidifier, conveyor, it is characterized in that, sack cleaner is positioned at storage powder jar top, be provided with hopper wall vibrator at storage powder tank lower cone section, storage powder jar bottom is provided with push-pull valve, and the push-pull valve bottom is provided with star-like unloading valve, star-like unloading valve bottom is connected to two-wheel and stirs humidifier, and star-like unloading valve bottom also is connected with the raw coal conveyor.
The invention has the beneficial effects as follows: utilize dedusting ash pulverized coke instead part coal dust, carry out recycling of waste resources, save energy reduces investment.The dry coke quenching dedusting ash that was produced by chemical plant itself in present every month has 200 tons, and major part is used for converter steelmaking, and economic benefit is not obvious.Finish if transport burnt dedust innovation, can produce 500 tons in every month,, just be equivalent to save 500 tons of standard coals, transportation and coal dust complete processing and equipment attrition if be used for pulverized coal injection.
Description of drawings
Fig. 1 is an apparatus structure front view of the present invention.
Fig. 2 is an apparatus structure side-view of the present invention.
Embodiment
The blast furnace dry cooled coke powder blowing process is characterized in that: in blast furnace PCI technology, the fuel that the coke powder of dry coke quenching is used for pulverized coal injection substitutes the part coal dust, and the coke powder consumption is coke powder consumption≤30 kilogram of iron per ton; After coke powder and raw coal mix, enter medium-speed pulverizer, with the raw coal thorough mixing.
See Fig. 1, the equipment that described blast furnace dry cooled coke powder blowing process adopts, comprise that sack cleaner 1, storage powder jar 2, hopper wall vibrator 3, push-pull valve 4, star-like unloading valve 5, two-wheel stir humidifier 6, conveyor 7, it is characterized in that, sack cleaner 1 is positioned at storage powder jar 2 tops, its effect is when ash discharge in the coke powder jar, prevents the dedusting ash leakage, causes secondary pollution; Be provided with hopper wall vibrator at storage powder tank lower cone section, prevent long-time or overstocked the hardening of dedusting ash; Storage powder jar 2 bottoms are provided with push-pull valve 4, and push-pull valve 4 bottoms are provided with star-like unloading valve 5, and star-like unloading valve 5 bottoms are connected to two-wheel and stir humidifier 6, see Fig. 2, and star-like unloading valve 5 bottoms also are connected with raw coal conveyor 7.
Claims (2)
1, blast furnace dry cooled coke powder blowing process is characterized in that: in blast furnace PCI technology, the fuel that the coke powder of dry coke quenching is used for pulverized coal injection substitutes the part coal dust, and the coke powder consumption is coke powder consumption≤30 kilogram of iron per ton; After coke powder and raw coal mix, enter medium-speed pulverizer, with the raw coal thorough mixing.
2, the equipment of the described blast furnace dry cooled coke powder blowing process employing of claim 1, comprise that sack cleaner, storage powder jar, hopper wall vibrator, push-pull valve, star-like unloading valve, two-wheel stir humidifier, conveyor, it is characterized in that, sack cleaner is positioned at storage powder jar top, be provided with hopper wall vibrator at storage powder tank lower cone section, storage powder jar bottom is provided with push-pull valve, the push-pull valve bottom is provided with star-like unloading valve, star-like unloading valve bottom is connected to two-wheel and stirs humidifier, and star-like unloading valve bottom also is connected with the raw coal conveyor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710010667XA CN100463974C (en) | 2007-03-21 | 2007-03-21 | Blast furnace dry quenching powder spraying process and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710010667XA CN100463974C (en) | 2007-03-21 | 2007-03-21 | Blast furnace dry quenching powder spraying process and equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101020931A true CN101020931A (en) | 2007-08-22 |
| CN100463974C CN100463974C (en) | 2009-02-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200710010667XA Active CN100463974C (en) | 2007-03-21 | 2007-03-21 | Blast furnace dry quenching powder spraying process and equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN100463974C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102719580A (en) * | 2011-03-29 | 2012-10-10 | 鞍钢股份有限公司 | Blast furnace operation method for improving coke strength of hearth |
| CN102746915A (en) * | 2012-07-31 | 2012-10-24 | 内蒙古包钢钢联股份有限公司 | Mixed pulverized coal suitable for blast furnace spraying and blowing |
| CN103146399A (en) * | 2013-03-13 | 2013-06-12 | 济钢集团有限公司 | Reuse device for dry-quenching secondary dust removal coke powder |
| CN105018666A (en) * | 2014-04-28 | 2015-11-04 | 宝山钢铁股份有限公司 | Method for conducting melting reduction on dust removal pulverized coal through COREX |
| CN106319117A (en) * | 2015-06-30 | 2017-01-11 | 上海梅山钢铁股份有限公司 | Uniform powdery material adding device, installing method and application method |
| CN108660271A (en) * | 2018-07-10 | 2018-10-16 | 莱芜职业技术学院 | Blast furnace dry quenching coke powder spraying equipment |
| CN110042185A (en) * | 2019-05-28 | 2019-07-23 | 无锡澄天环境科技有限公司 | For dust pelletizing system before State of Blast Furnace |
| CN114622093A (en) * | 2022-03-14 | 2022-06-14 | 包头钢铁（集团）有限责任公司 | Method for efficiently recycling dry quenching dust |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1101677A (en) * | 1993-10-13 | 1995-04-19 | 冶金工业部鞍山热能研究院 | Single Charging stock recipe for blast furnace iron-smelting and apparatus |
| CN2341103Y (en) * | 1998-06-03 | 1999-09-29 | 李庆国 | Coal powder sprayer for blast furnace |
| CN2456035Y (en) * | 2000-12-15 | 2001-10-24 | 天津天铁冶金集团有限公司 | Quick, thick and multi-direction conveyor of coal power |
| CN2456842Y (en) * | 2000-12-15 | 2001-10-31 | 天津天铁冶金集团有限公司 | Powder making device of ball mill |
| CN1233976C (en) * | 2002-01-05 | 2005-12-28 | 云南冶金集团总公司 | Blast furnace powder-spraying intensified smelting technology |
| CN1261598C (en) * | 2004-12-28 | 2006-06-28 | 辽宁奇欣环保工程技术有限公司 | Method for reclaiming and reusing iron-making dust in blast furnace |
| CN1280430C (en) * | 2005-02-25 | 2006-10-18 | 刘利民 | Method for extracting pig iron by using dust of iron powder plant |
| CN1743465A (en) * | 2005-09-19 | 2006-03-08 | 秦皇岛首秦金属材料有限公司 | Sack dust adding method for blast furnace coal injection |
-
2007
- 2007-03-21 CN CNB200710010667XA patent/CN100463974C/en active Active
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102719580A (en) * | 2011-03-29 | 2012-10-10 | 鞍钢股份有限公司 | Blast furnace operation method for improving coke strength of hearth |
| CN102719580B (en) * | 2011-03-29 | 2014-11-05 | 鞍钢股份有限公司 | Blast furnace operation method for improving coke strength of hearth |
| CN102746915A (en) * | 2012-07-31 | 2012-10-24 | 内蒙古包钢钢联股份有限公司 | Mixed pulverized coal suitable for blast furnace spraying and blowing |
| CN103146399A (en) * | 2013-03-13 | 2013-06-12 | 济钢集团有限公司 | Reuse device for dry-quenching secondary dust removal coke powder |
| CN105018666A (en) * | 2014-04-28 | 2015-11-04 | 宝山钢铁股份有限公司 | Method for conducting melting reduction on dust removal pulverized coal through COREX |
| CN106319117A (en) * | 2015-06-30 | 2017-01-11 | 上海梅山钢铁股份有限公司 | Uniform powdery material adding device, installing method and application method |
| CN106319117B (en) * | 2015-06-30 | 2019-02-05 | 上海梅山钢铁股份有限公司 | A kind of granular material uniform adding apparatus, installation method and application method |
| CN108660271A (en) * | 2018-07-10 | 2018-10-16 | 莱芜职业技术学院 | Blast furnace dry quenching coke powder spraying equipment |
| CN108660271B (en) * | 2018-07-10 | 2019-12-13 | 莱芜职业技术学院 | Blast furnace dry quenching coke powder spraying equipment |
| CN110042185A (en) * | 2019-05-28 | 2019-07-23 | 无锡澄天环境科技有限公司 | For dust pelletizing system before State of Blast Furnace |
| CN114622093A (en) * | 2022-03-14 | 2022-06-14 | 包头钢铁（集团）有限责任公司 | Method for efficiently recycling dry quenching dust |
| CN114622093B (en) * | 2022-03-14 | 2024-01-30 | 包头钢铁（集团）有限责任公司 | Method for efficiently recycling dry quenching dust |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100463974C (en) | 2009-02-25 |
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