CN102538496A - Zero-emission comprehensive utilizing technology for continuous-casting secondary-cooling vapor and converter vaporizing vapor - Google Patents
Zero-emission comprehensive utilizing technology for continuous-casting secondary-cooling vapor and converter vaporizing vapor Download PDFInfo
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- CN102538496A CN102538496A CN2012100506866A CN201210050686A CN102538496A CN 102538496 A CN102538496 A CN 102538496A CN 2012100506866 A CN2012100506866 A CN 2012100506866A CN 201210050686 A CN201210050686 A CN 201210050686A CN 102538496 A CN102538496 A CN 102538496A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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Abstract
The invention discloses a zero-emission comprehensive utilizing technology for continuous-casting secondary-cooling vapor and converter vaporizing vapor. The zero-emission comprehensive utilizing technology for the continuous-casting secondary-cooling vapor and the converter vaporizing vapor comprises the following steps; 1, heating period: cooling the continuous-casting secondary-cooling vapor and the vaporized converter vapor, dewatering the continuous-casting secondary-cooling vapor and the vaporized converter vapor into hot water at 85-95 DEG C, collecting the hot water into a heat-preserving water tank for supplying a circulating heating medium to a heat supply network, and supplementing surplus water in the circulating heating medium into a fresh water system; and 2, non-heating period: cooling the continuous-casting secondary-cooling vapor and the vaporized converter vapor into liquid water, collecting the liquid water into a water storage pool, and supplementing the liquid water into the fresh water system. After adoption of the technology, the continuous-casting secondary-cooling vapor and the vaporized converter vapor are completely recycled, so that the zero emission is realized; the influence of the emission of the continuous-casting secondary-cooling vapor and the vaporized converter vapor on the environment is avoided, and the energy brought by the emission is comprehensively utilized, so that aims of saving energy, reducing emission and lowering consumption are fulfilled; the economic, environmental and social benefits are outstanding; and the zero-emission comprehensive utilizing technology for the continuous-casting secondary-cooling vapor and the converter vaporizing vapor is worth of wide popularization.
Description
One, technical field
The invention belongs to steelmaking technical field, be specifically related to a kind of continuous casting two cold water vapour and converter boil-off zero and diffuse comprehensive utilization process.
Two, background technology
The converter evaporated flue is one of main corollary equipment of pneumatic steelmaking.This equipment will be collected high-temperature flue gas to greatest extent when work, flue-gas temperature can reach 1500 ℃, and flue gas cooling back is produced boil-off, and boil-off is the important secondary energy sources of converter mill.Because converter production has discontinuity, the smelting cycle of every stove is 30 minutes, and pure oxygen blow duration is 15 minutes, the generation of steam also have be interrupted, the big characteristic of moment steam production, the phenomenon that often has boil-off to diffuse in the actual moving process.In iron and steel enterprise's continuous casting manufacturing technique; Nearly 1000 ℃ strand band the liquid core and is got into the cooling of two cold-zones acceptance water spray, and purpose is that strand is solidified fully, and strand will all solidify the heat of the 210～294kJ/kg that need shed in two cold-zones; Wherein 58% heat is taken away by secondary cooling water; The secondary cooling water temperature raises, and produces steam simultaneously, and wherein secondary cooling water steam directly enters in the atmosphere.Directly diffusing of above-mentioned continuous casting two cold water vapour and converter boil-off not only influences environment, and its heat energy that carries do not obtain utilizing, and do not meet energy-saving and emission-reduction and environmental protection requirement.
Three, summary of the invention
The purpose of this invention is to provide a kind of continuous casting two cold water vapour and converter boil-off zero and diffuse comprehensive utilization process; Adopt this technology can make continuous casting two cold water vapour and converter boil-off realize that zero diffuses; Avoid environment is impacted; The entrained heat of steam is fully used, to reach the purpose of energy-saving and emission-reduction, consumption reduction.
For realizing above-mentioned purpose; The technical scheme that the present invention adopts is: this technology comprises the steps: 1. heating period: continuous casting two cold water vapour and converter boil-off are become 85-95 ℃ hot water through cooling, dehydration; Collect in the attemperater; For heat supply network provides the circulation heating agent, unnecessary water is mended into new water system in the circulation heating agent;
2. non-heating period: continuous casting two cold water vapour and converter boil-off through cooling, behind the liquefy water, are collected in the tank, mended new water system again.
Adopt above-mentioned technology, continuous casting two cold water vapour and converter boil-off 100% have obtained recycling, have realized that zero diffuses.Not only solved it and diffused the influence that environment is caused, and its with energy obtained comprehensive utilization, thereby realized the purpose of steel mill energy-saving and emission-reduction and consumption reduction, economic benefit, environmental benefit, obvious social benefit are worth applying widely.
Four, description of drawings
Accompanying drawing is a process chart of the present invention.
Five, the specific embodiment
As shown in the figure, 1. heating period: the steam in the caster two cold vaporium 1 through pipeline by blower fan 3 in valve 14 is transported to attemperater 13.The steam that is used to store in the gas bag 2 of converter boil-off diffuses valve 18 and valve 17 also is transported in the attemperater 13 through pipeline, superpressure.Be transported to cold plate 4 and cooling, the dehydration of dehydration net 6 in it of steam in the attemperater 13 and become 85-95 ℃ hot water.Hot water is transported to heat supply network 8 through pipeline by heating heat-exchanger pump 19 again, for heat supply network 8 provides heating agent.The backwater major part of heat supply network 8 recycles in pipeline returns attemperater 13, and remaining part filters after pipeline is mended into new water system in pipeline is sent into new water filtration pond 9.2. non-heating period: the steam in the caster two cold vaporium 1 through pipeline by blower fan 3 in valve 15 is transported to cooler 12.The steam that is used to store in the gas bag 2 of converter boil-off diffuses valve 18 and valve 16 also is transported in the cooler 12 through pipeline, superpressure.Be transported to steam in the cooler 12 are carried underground water 11 coolings of being come in through water pump 7 after, liquefy water, collecting volume through pipeline again is 20 m
3Tank 10 in, send into by water pump 7 in the new water filtration pond 9 through pipeline again, filter after pipeline is mended into new water system.The conveying of the steam in the caster two cold vaporium 1 of above-mentioned heating period and non-heating period and the gas bag 2 is controlled by valve, and promptly during heating period, valve-off 15,16, Open valve 14,17 can only be transported in the attemperater 13 steam; During non-heating period, valve-off 14,17, Open valve 15,16 can only be transported in the cooler 12 steam.Above-mentioned attemperater 13 is that volume is 160m
3Big volume structure, its tank wall 5 is three layers of insulation construction.Above-mentioned heating heat-exchanger pump 19 is the heating heat-exchanger pump of QJR series, and its lift is 60 meters, flow 200 m
3
Claims (3)
1. continuous casting two cold water vapour and converter boil-off zero diffused comprehensive utilization process; Comprise the steps: 1. heating period: continuous casting two cold water vapour and converter boil-off are become 85-95 ℃ hot water through cooling, dehydration; Collect in the attemperater (13); For heat supply network (8) provides the circulation heating agent, unnecessary water is mended into new water system in the circulation heating agent;
2. non-heating period: continuous casting two cold water vapour and converter boil-off through cooling, behind the liquefy water, are collected in the tank (12), mended new water system again.
2. a kind of continuous casting two cold water vapour according to claim 1 and converter boil-off zero diffused comprehensive utilization process, and it is characterized in that: the concrete steps of this technology are: 1. heating period: the steam in the caster two cold vaporium (1) through pipeline by blower fan (3) in valve (14) is transported to attemperater (13); The steam that is used to store in the gas bag (2) of converter boil-off diffuses valve (18) and valve (17) also is transported in the attemperater (13) through pipeline, superpressure; Be transported to cold plate (4) and cooling, the dehydration of dehydration net (6) in it of steam in the attemperater (13) and become 85-95 ℃ hot water; Hot water is transported to heat supply network (8) through pipeline by heating heat-exchanger pump (19) again; The backwater major part of heat supply network (8) recycles in pipeline returns attemperater (13); Remaining part filters after pipeline is mended into new water system in pipeline is sent into new water filtration pond (9); 2. non-heating period: the steam in the caster two cold vaporium (1) through pipeline by blower fan (3) in valve (15) is transported to cooler (12); The steam that is used to store in the gas bag (2) of converter boil-off diffuses valve (18) and valve (16) also is transported in the cooler (12) through pipeline, superpressure; Be transported to the interior steam of cooler (12) through cooling liquefy water, in pipeline is collected tank (10), send in the new water filtration pond (9) by water pump (7) through pipeline more again, filter after pipeline is mended into new water system.
3. according to claim 1 and 2 kind of continuous casting two cold water vapour and converter boil-off zero diffused comprehensive utilization process, and it is characterized in that: attemperater (13) is that volume is 160m
3Big volume structure, its tank wall (5) is three layers of insulation construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100506866A CN102538496B (en) | 2012-03-01 | 2012-03-01 | Zero-emission comprehensive utilizing technology for continuous-casting secondary-cooling vapor and converter vaporizing vapor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012100506866A CN102538496B (en) | 2012-03-01 | 2012-03-01 | Zero-emission comprehensive utilizing technology for continuous-casting secondary-cooling vapor and converter vaporizing vapor |
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| CN102538496A true CN102538496A (en) | 2012-07-04 |
| CN102538496B CN102538496B (en) | 2013-08-28 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102773441A (en) * | 2012-08-28 | 2012-11-14 | 无锡市东方环境工程设计研究所有限公司 | Afterheat recycling device for continuous cast secondary cooling section |
| CN108176829A (en) * | 2018-01-19 | 2018-06-19 | 天津荣程联合钢铁集团有限公司 | A kind of conticaster method for treating water and plank obtained by this method |
| CN109175284A (en) * | 2018-09-10 | 2019-01-11 | 武汉科技大学 | A kind of efficient, energy-efficient continuous casting secondary cooling method |
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2012
- 2012-03-01 CN CN2012100506866A patent/CN102538496B/en active Active
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| KR20020052893A (en) * | 2000-12-26 | 2002-07-04 | 이구택 | System for using steam in continuous casting process |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102773441A (en) * | 2012-08-28 | 2012-11-14 | 无锡市东方环境工程设计研究所有限公司 | Afterheat recycling device for continuous cast secondary cooling section |
| CN102773441B (en) * | 2012-08-28 | 2015-10-07 | 无锡市东方环境工程设计研究所有限公司 | The waste heat recovery device of continuous casting two cold section |
| CN108176829A (en) * | 2018-01-19 | 2018-06-19 | 天津荣程联合钢铁集团有限公司 | A kind of conticaster method for treating water and plank obtained by this method |
| CN108176829B (en) * | 2018-01-19 | 2019-08-23 | 天津荣程联合钢铁集团有限公司 | A kind of conticaster method for treating water and plate obtained by this method |
| CN109175284A (en) * | 2018-09-10 | 2019-01-11 | 武汉科技大学 | A kind of efficient, energy-efficient continuous casting secondary cooling method |
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| CN102538496B (en) | 2013-08-28 |
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