CN103673644A - Waste heat utilizing system of submerged-arc furnace - Google Patents
Waste heat utilizing system of submerged-arc furnace Download PDFInfo
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- CN103673644A CN103673644A CN201310620816.XA CN201310620816A CN103673644A CN 103673644 A CN103673644 A CN 103673644A CN 201310620816 A CN201310620816 A CN 201310620816A CN 103673644 A CN103673644 A CN 103673644A
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- waste heat
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- heat boiler
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- flue
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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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- 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
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
Abstract
The invention discloses a waste heat utilizing system of a submerged-arc furnace. The waste heat utilizing system comprises the submerged-arc furnace, a water cooling and air cooling device, a flue, a settling chamber, a waste heat boiler, a dust collector, a induced draft fan and a chimney. The smoke outlet of the submerged-arc furnace is connected with the water cooling and air cooling device through a pipeline. The outlet of the water cooling and air cooling device is connected with the settling chamber through the flue. The smoke outlet of the settling chamber is sequentially connected with the waste heat boiler and the dust collector through a pipeline. The outlet of the dust collector is connected with the chimney through the induced draft fan. The waste heat utilizing system has the advantages that the waste heat utilizing system is applicable to metallurgy and chemical industry processes, the smoke generated by the submerged-arc furnace enters the waste heat boiler for heat energy recycling, the generated steam is used for power generation, energy utilization can be increased, and environmental pollution can be reduced.
Description
Technical field
The present invention relates to a kind of flue gas waste heat utilization.
Background technology
In China's present stage metallurgy, chemical industry, mineral hot furnace has a very wide range of applications.Mineral hot furnace is mainly used in reducing and smelting ore, and the raw materials such as carbonaceous reducing agent and solvent are mainly produced ferrosilicon, ferromanganese, and the ferroalloys such as ferrochrome, ferrotungsten, silicomangan, are one of widely used equipment in metallurgical industry.Yet due to the feature of high energy consumption (especially electricity needs is high), high pollution, these industries are being born huge pressure at antifouling reduction of discharging, the aspect such as energy-saving and cost-reducing.
In production link, mineral hot furnace is produced and can be produced a large amount of high-temp waste gas, and the technique that many factories adopt is by accessing large-area radiator, makes flue-gas temperature be reduced to the temperature that dust-precipitator can bear, and finally directly discharges.Only have minority residual heat resources for combustion air, pre-heat mixture or utilize waste-heat recovery device to produce steam, heat recovery efficiency is on the whole not high.
For metallurgy industry enterprise, afterheat generating system investment is little, and instant effect, can significantly reduce energy consumption, improves Business Economic Benefit simultaneously, for the energy-saving and emission-reduction of China and the development of metallurgy industry, has very important meaning.Object of the present invention is just at a set of flue gas waste heat utilization of research and development.
Summary of the invention
The object of the present invention is to provide a kind of flue gas waste heat utilization.
The present invention is achieved by the following technical solutions:
A kind of flue gas waste heat utilization, comprise mineral hot furnace, water-cooled air cooling equipment, flue, expansion chamber, waste heat boiler, deduster, air-introduced machine, chimney, wherein the exhanst gas outlet of mineral hot furnace connects water-cooled air cooling equipment by pipeline, the outlet of water-cooled air cooling equipment connects expansion chamber by flue, the exhanst gas outlet of expansion chamber connects waste heat boiler and deduster successively by pipeline, and the outlet of deduster is connected with chimney by air-introduced machine.
Further, also comprise cogeneration steam turbine, the steam (vapor) outlet of described waste heat boiler is connected with cogeneration steam turbine, generates electricity.
Described waste heat boiler adopts dual pressure system, and low pressure heat exchanger and high pressure heat exchanger are installed in waste heat boiler.
Waste heat boiler of the present invention adopts dual pressure system, low pressure heat exchanger and high pressure heat exchanger are installed in waste heat boiler, cold water after oxygen-eliminating device deoxygenation is sent to low pressure heat exchanger and high pressure heat exchanger, after entering waste heat boiler, the high-temperature flue gas that mineral hot furnace produces carries out heat exchange with low pressure heat exchanger and high pressure heat exchanger, after high pressure heat exchanger heat exchange, produce high steam, when promoting the use of, can be equipped with afterheat generating system, high steam is pooled to the main steam line of afterheat generating system, deliver to steam turbine power generation, steam after having generated electricity is condensed into and is again delivered to oxygen-eliminating device after cold water low pressure heat exchanger and high pressure heat exchanger are supplied water by condenser, the low-pressure steam producing after the heat exchange of low pressure heat exchanger or hot water are used for getting back to oxygen-eliminating device and carry out deoxygenation operation, pass through afterheat generating system, the low heat value flue gas that ore-smelting electric furnace produces reduces through heat-exchange temperature, can reclaim heat, can reduce flue-gas temperature again, extend the service life of sack cleaner.
The present invention has the space of application in a lot of metallurgical and chemical industry technique, and the flue gas that mineral hot furnace produces enters waste heat boiler and reclaims heat energy, produces steam-electric power, can improve energy utilization rate, reduce environmental pollution.
Accompanying drawing explanation
Fig. 1 is structural formula schematic diagram of the present invention;
In figure: 1-mineral hot furnace, 2-water-cooled air cooling equipment, 3-flue, 4-expansion chamber, 5-waste heat boiler, 6-deduster, 7-air-introduced machine, 8-chimney, 9-cogeneration steam turbine.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention will be further described.
A kind of flue gas waste heat utilization as shown in Figure 1, comprise mineral hot furnace 1, water-cooled air cooling equipment 2, flue 3, expansion chamber 4, waste heat boiler 5, deduster 6, air-introduced machine 7, chimney 8, wherein the exhanst gas outlet of mineral hot furnace 1 connects water-cooled air cooling equipment 2 by pipeline, the outlet of water-cooled air cooling equipment 2 connects expansion chamber 4 by flue 3, the exhanst gas outlet of expansion chamber 4 connects waste heat boiler 5 and deduster 6 successively by pipeline, and the outlet of deduster 6 is connected with chimney 8 by air-introduced machine 7.
Waste heat boiler adopts dual pressure system, and low pressure heat exchanger and high pressure heat exchanger are installed in waste heat boiler, also comprises cogeneration steam turbine 9, and the steam (vapor) outlet of waste heat boiler 5 is connected with cogeneration steam turbine 9.
Claims (3)
1. a flue gas waste heat utilization, it is characterized in that, comprise mineral hot furnace (1), water-cooled air cooling equipment (2), flue (3), expansion chamber (4), waste heat boiler (5), deduster (6), air-introduced machine (7), chimney (8), wherein the exhanst gas outlet of mineral hot furnace (1) connects water-cooled air cooling equipment (2) by pipeline, the outlet of water-cooled air cooling equipment (2) connects expansion chamber (4) by flue (3), the exhanst gas outlet of expansion chamber (4) connects waste heat boiler (5) and deduster (6) successively by pipeline, the outlet of deduster (6) is connected with chimney (8) by air-introduced machine (7).
2. a kind of flue gas waste heat utilization according to claim 1, is characterized in that, also comprises cogeneration steam turbine (9), and the steam (vapor) outlet of described waste heat boiler (5) is connected with cogeneration steam turbine (9).
3. a kind of flue gas waste heat utilization according to claim 1 and 2, is characterized in that, described waste heat boiler (5) adopts dual pressure system, and waste heat boiler is provided with low pressure heat exchanger and high pressure heat exchanger in (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310620816.XA CN103673644A (en) | 2013-11-29 | 2013-11-29 | Waste heat utilizing system of submerged-arc furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310620816.XA CN103673644A (en) | 2013-11-29 | 2013-11-29 | Waste heat utilizing system of submerged-arc furnace |
Publications (1)
| Publication Number | Publication Date |
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| CN103673644A true CN103673644A (en) | 2014-03-26 |
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| CN201310620816.XA Pending CN103673644A (en) | 2013-11-29 | 2013-11-29 | Waste heat utilizing system of submerged-arc furnace |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104399321A (en) * | 2014-12-01 | 2015-03-11 | 谭鼎昌 | Tubulation type air cooler, smoke purification method for closed submerged arc furnace and method for cleaning ash in tubes |
| CN113008046A (en) * | 2021-03-10 | 2021-06-22 | 易门铜业有限公司 | Accurate closed water-cooling heat exchange method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004092980A (en) * | 2002-08-30 | 2004-03-25 | Ube Techno Enji Kk | Waste heat recovery boiler device |
| CN101403506A (en) * | 2008-08-29 | 2009-04-08 | 南京苏冶钙业技术有限公司 | Calcium carbide stove exhaust combustion and utilization method and device |
| CN201285050Y (en) * | 2008-08-12 | 2009-08-05 | 南京苏冶钙业技术有限公司 | Tail gas combustion utilization apparatus for calcium carbide furnace |
| CN201740408U (en) * | 2009-12-18 | 2011-02-09 | 南京凯盛开能环保能源有限公司 | Electric boiler flue gas waste heat recovery system with settlement heat storage chamber |
| CN202349979U (en) * | 2011-11-17 | 2012-07-25 | 山东华源锅炉有限公司 | Waste heat utilization system special for sulfuric acid industry |
| CN103047871A (en) * | 2012-12-28 | 2013-04-17 | 北京世纪源博科技股份有限公司 | Comprehensive iron alloy submerged arc furnace waste heat recovery and utilization system |
| CN203100459U (en) * | 2012-12-11 | 2013-07-31 | 上海瑞恩能源投资有限公司 | Ferro-nickel combustible flue gas waste heat boiler internal combustion system |
| CN103344125A (en) * | 2013-07-25 | 2013-10-09 | 南京凯盛开能环保能源有限公司 | Power generation system with waste heat in casting process of submerged arc furnace comprehensively utilized |
| CN203657509U (en) * | 2013-11-29 | 2014-06-18 | 偏关县晋电化工有限责任公司 | Submerged arc furnace smoke waste-heat utilization system |
-
2013
- 2013-11-29 CN CN201310620816.XA patent/CN103673644A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004092980A (en) * | 2002-08-30 | 2004-03-25 | Ube Techno Enji Kk | Waste heat recovery boiler device |
| CN201285050Y (en) * | 2008-08-12 | 2009-08-05 | 南京苏冶钙业技术有限公司 | Tail gas combustion utilization apparatus for calcium carbide furnace |
| CN101403506A (en) * | 2008-08-29 | 2009-04-08 | 南京苏冶钙业技术有限公司 | Calcium carbide stove exhaust combustion and utilization method and device |
| CN201740408U (en) * | 2009-12-18 | 2011-02-09 | 南京凯盛开能环保能源有限公司 | Electric boiler flue gas waste heat recovery system with settlement heat storage chamber |
| CN202349979U (en) * | 2011-11-17 | 2012-07-25 | 山东华源锅炉有限公司 | Waste heat utilization system special for sulfuric acid industry |
| CN203100459U (en) * | 2012-12-11 | 2013-07-31 | 上海瑞恩能源投资有限公司 | Ferro-nickel combustible flue gas waste heat boiler internal combustion system |
| CN103047871A (en) * | 2012-12-28 | 2013-04-17 | 北京世纪源博科技股份有限公司 | Comprehensive iron alloy submerged arc furnace waste heat recovery and utilization system |
| CN103344125A (en) * | 2013-07-25 | 2013-10-09 | 南京凯盛开能环保能源有限公司 | Power generation system with waste heat in casting process of submerged arc furnace comprehensively utilized |
| CN203657509U (en) * | 2013-11-29 | 2014-06-18 | 偏关县晋电化工有限责任公司 | Submerged arc furnace smoke waste-heat utilization system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104399321A (en) * | 2014-12-01 | 2015-03-11 | 谭鼎昌 | Tubulation type air cooler, smoke purification method for closed submerged arc furnace and method for cleaning ash in tubes |
| CN104399321B (en) * | 2014-12-01 | 2016-06-29 | 谭鼎昌 | Shell and tube air cooler and closed submerged kiln gas purification method ash removal method interior with pipe |
| CN113008046A (en) * | 2021-03-10 | 2021-06-22 | 易门铜业有限公司 | Accurate closed water-cooling heat exchange method |
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Application publication date: 20140326 |