CN100463974C - Dry cooled coke powder blowing process and apparatus for blast furnace - Google Patents
Dry cooled coke powder blowing process and apparatus for blast furnace Download PDFInfo
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- CN100463974C CN100463974C CNB200710010667XA CN200710010667A CN100463974C CN 100463974 C CN100463974 C CN 100463974C CN B200710010667X A CNB200710010667X A CN B200710010667XA CN 200710010667 A CN200710010667 A CN 200710010667A CN 100463974 C CN100463974 C CN 100463974C
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Abstract
The present invention relates to dry cooled coke powder blowing process for blast furnace, and features that dry cooled coke powder is used to replace partial blown coal powder, with the coke powder consumption being not more than 30 Kg for each ton of iron. Coke powder is well mixed with coal through milling the mixture of coke powder and raw coal in a medium speed mill. The present invention utilizes dedusting coke powder to replace partial coal powder, and has utilization of waste, saving in energy and lowered investment.
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 the coke powder Yong Liang ≦ 30 kilograms 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 the coke powder Yong Liang ≦ 30 kilograms 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 the coke powder Yong Liang ≦ 30 kilograms of iron per ton; After coke powder and raw coal mix, enter medium-speed pulverizer, with the raw coal thorough mixing.
2. the equipment that adopts of the described blast furnace dry cooled coke powder blowing process 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 |
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| CNB200710010667XA CN100463974C (en) | 2007-03-21 | 2007-03-21 | Dry cooled coke powder blowing process and apparatus for blast furnace |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB200710010667XA CN100463974C (en) | 2007-03-21 | 2007-03-21 | Dry cooled coke powder blowing process and apparatus for blast furnace |
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| Publication Number | Publication Date |
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| CN101020931A CN101020931A (en) | 2007-08-22 |
| CN100463974C true CN100463974C (en) | 2009-02-25 |
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| CNB200710010667XA Active CN100463974C (en) | 2007-03-21 | 2007-03-21 | Dry cooled coke powder blowing process and apparatus for blast furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108660271A (en) * | 2018-07-10 | 2018-10-16 | 莱芜职业技术学院 | Blast furnace dry cooled coke powder blowing device |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102719580B (en) * | 2011-03-29 | 2014-11-05 | 鞍钢股份有限公司 | Blast furnace operation method for improving hearth coke strength |
| 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 |
| CN105018666B (en) * | 2014-04-28 | 2017-12-26 | 宝山钢铁股份有限公司 | A kind of method using COREX melting and reducing dedusting coal dusts |
| 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 |
| 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 |
| 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 |
Citations (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 |
| CN1395079A (en) * | 2002-01-05 | 2003-02-05 | 云南冶金集团总公司 | Blast furnace powder-spraying intensified smelting technology |
| CN1632136A (en) * | 2004-12-28 | 2005-06-29 | 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 |
| CN1654685A (en) * | 2005-02-25 | 2005-08-17 | 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
Patent Citations (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 |
| CN1395079A (en) * | 2002-01-05 | 2003-02-05 | 云南冶金集团总公司 | Blast furnace powder-spraying intensified smelting technology |
| CN1632136A (en) * | 2004-12-28 | 2005-06-29 | 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 |
| CN1654685A (en) * | 2005-02-25 | 2005-08-17 | 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 |
Non-Patent Citations (6)
| Title |
|---|
| 中国高炉喷煤史回顾. 温大威.宝钢技术，第1期. 2005 |
| 中国高炉喷煤史回顾. 温大威.宝钢技术，第1期. 2005 * |
| 干熄焦焦粉或除尘灰回配装炉煤的炼焦应用. 周兵祖等.鄂钢科技，第1期. 2006 |
| 干熄焦焦粉或除尘灰回配装炉煤的炼焦应用. 周兵祖等.鄂钢科技，第1期. 2006 * |
| 焦粉回配炼焦工艺的实验研究. 杨明平等.煤化工，第6期. 2003 |
| 焦粉回配炼焦工艺的实验研究. 杨明平等.煤化工，第6期. 2003 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108660271A (en) * | 2018-07-10 | 2018-10-16 | 莱芜职业技术学院 | Blast furnace dry cooled coke powder blowing device |
| CN108660271B (en) * | 2018-07-10 | 2019-12-13 | 莱芜职业技术学院 | Blast furnace dry quenching coke powder spraying equipment |
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| CN101020931A (en) | 2007-08-22 |
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