CN203657509U - Submerged arc furnace smoke waste-heat utilization system - Google Patents
Submerged arc furnace smoke waste-heat utilization system Download PDFInfo
- Publication number
- CN203657509U CN203657509U CN201320768572.5U CN201320768572U CN203657509U CN 203657509 U CN203657509 U CN 203657509U CN 201320768572 U CN201320768572 U CN 201320768572U CN 203657509 U CN203657509 U CN 203657509U
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- China
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- waste heat
- outlet
- arc furnace
- submerged arc
- heat boiler
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- Expired - Fee Related
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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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
-
- 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
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model discloses a submerged arc furnace smoke waste-heat utilization system. The submerged arc furnace smoke waste-heat utilization system comprises a submerged arc furnace, a water-cooling and air-cooling device, a flue, a settling chamber, a waste heat boiler, a dust remover, an induced draft fan and a chimney, wherein a smoke outlet of the submerged arc furnace is connected with the water-cooling and air-cooling device through a pipeline, an outlet of the water-cooling and air-cooling device is connected with the settling chamber through the flue, a smoke outlet of the settling chamber is connected with the waste heat boiler and the dust remover in sequence through a pipeline, and an outlet of the dust remover is connected with the chimney through the induced draft fan. The submerged arc furnace smoke waste-heat utilization system can be applied to multiple processes in the metallurgical and chemical industries; smoke generated by the submerged arc furnace enters the waste heat boiler, so that heat is recovered, and steam is generated for power generation; as a result, the energy utilization rate can be increased, and environmental pollution can be reduced.
Description
Technical field
The utility model relates to 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.But 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, has very important meaning for the energy-saving and emission-reduction of China and the development of metallurgy industry.The purpose of this utility model is just at a set of flue gas waste heat utilization of research and development.
Summary of the invention
The purpose of this utility model is to provide flue gas waste heat utilization.
The utility model is achieved through the following technical solutions:
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.
The utility model waste heat boiler 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, in the time 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 delivered to oxygen-eliminating device again to low pressure heat exchanger and high pressure heat exchanger water supply after being condensed into cold 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 again flue-gas temperature, extend the service life of sack cleaner.
The utility model 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.
Brief description of the drawings
Fig. 1 is structural formula schematic diagram of the present utility model;
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.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described further.
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. 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. 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 |
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CN201320768572.5U CN203657509U (en) | 2013-11-29 | 2013-11-29 | Submerged arc furnace smoke waste-heat utilization system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201320768572.5U CN203657509U (en) | 2013-11-29 | 2013-11-29 | Submerged arc furnace smoke waste-heat utilization system |
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CN203657509U true CN203657509U (en) | 2014-06-18 |
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CN201320768572.5U Expired - Fee Related CN203657509U (en) | 2013-11-29 | 2013-11-29 | Submerged arc furnace smoke waste-heat utilization system |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103673644A (en) * | 2013-11-29 | 2014-03-26 | 偏关县晋电化工有限责任公司 | Waste heat utilizing system of submerged-arc furnace |
-
2013
- 2013-11-29 CN CN201320768572.5U patent/CN203657509U/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103673644A (en) * | 2013-11-29 | 2014-03-26 | 偏关县晋电化工有限责任公司 | Waste heat utilizing system of submerged-arc furnace |
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Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140618 Termination date: 20141129 |
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EXPY | Termination of patent right or utility model |