CN102980412A - Waste heat recovery device for sintering machine and circulating cooling machine - Google Patents
Waste heat recovery device for sintering machine and circulating cooling machine Download PDFInfo
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- CN102980412A CN102980412A CN2012105026598A CN201210502659A CN102980412A CN 102980412 A CN102980412 A CN 102980412A CN 2012105026598 A CN2012105026598 A CN 2012105026598A CN 201210502659 A CN201210502659 A CN 201210502659A CN 102980412 A CN102980412 A CN 102980412A
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- waste heat
- heat boiler
- sintering machine
- central cooler
- boiler
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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
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention relates to a waste heat recovery device for a sintering machine and a circulating cooling machine. The waste heat recovery device comprises a waste heat boiler of the sintering machine and a waste heat boiler of the circulating cooling machine. The waste heat boiler of the sintering machine comprises a waste heat boiler drum of the sintering machine, wherein the waste heat boiler drum of the sintering machine is provided with a steam outlet of the waste heat boiler of the sintering machine. The waste heat boiler of the circulating cooling machine comprises a waste heat boiler drum of the circulating cooling machine and a medium-pressure superheater. The waste heat boiler drum of the circulating cooling machine comprises a steam outlet of the waste heat boiler of the circulating cooling machine, wherein the steam outlet of the waste heat boiler of the sintering machine is connected with the steam outlet of the waste heat boiler of the circulating cooling machine, and the steam outlet of the waste heat boiler of the circulating cooling machine is connected with the medium-pressure superheater. According to the waste heat recovery device for the sintering machine and the circulating cooling machine in the structure provided by the invention, the quality of steam is effectively improved and the power capacity of a steam turbine is improved, so that the waste heat recovery rate is improved.
Description
Technical field
The present invention relates to a kind of waste-heat recovery device, relate in particular to sintering machine and central cooler waste-heat recovery device in iron and steel is produced.
Background technology
In steel manufacture process, the energy consumption of sintering circuit accounts for 10% of total energy consumption, is only second to Iron-smelting, occupies central cooler.In the sintering circuit total energy consumption, there is nearly 50% heat energy to enter atmosphere with the sensible heat form of sintering machine and central cooler waste gas.
Sintering machine and central cooler waste-heat recovery device are the key equipments of waste heat recovery, and its performance directly has influence on the effect that the waste gas residual heat of sintering machine and central cooler is recycled, and have accounted for very consequence in whole heat recovery technology.
Sintering machine of the prior art and central cooler waste-heat recovery device 200 are as shown in Figure 1, sintering machine and central cooler waste-heat recovery device 200 comprise sintering machine waste heat boiler 10 and central cooler waste heat boiler 20, the superheated steam of from the sintering machine waste heat boiler, pressing superheater 17 to produce, after superheated steam that the middle pressure superheater 28 of central cooler waste heat boiler is produced mixes, therefrom press together superheated steam outlet 281 to discharge, as the steam turbine admission.Because the entrance EGT of sintering machine waste heat boiler is lower, generally about 340 ℃, the superheated steam parameter that the sintering machine waste heat boiler is produced is lower than the steam parameter that central cooler waste heat boiler produces, reduced the quality of steam after the vapor mixing of these two kinds of different parameters, thereby reduced steam turbine acting ability, thereby cause the waste heat recovery Efficiency Decreasing, caused energy dissipation.
Summary of the invention
The object of the invention is to overcome the problem of above-mentioned prior art, a kind of sintering machine and central cooler waste-heat recovery device are provided, but the quality of its Effective Raise steam improves steam turbine acting ability, thereby improves the efficient of waste heat recovery.
The objective of the invention is to be achieved through the following technical solutions:
A kind of sintering machine and central cooler waste-heat recovery device comprise sintering machine waste heat boiler and central cooler waste heat boiler, and described sintering machine waste heat boiler comprises sintering machine waste heat boiler drum, and it is provided with sintering machine waste heat boiler steam (vapor) outlet; Described central cooler waste heat boiler comprises central cooler waste heat boiler drum and middle pressure superheater, described central cooler waste heat boiler drum is provided with central cooler waste heat boiler steam (vapor) outlet, described sintering machine waste heat boiler steam (vapor) outlet is connected with central cooler waste heat boiler steam (vapor) outlet, and described central cooler waste heat boiler steam (vapor) outlet is connected with middle pressure superheater.
Described sintering machine waste heat boiler also comprises in sintering machine waste heat boiler condensation water heater, sintering machine waste heat boiler oxygen-eliminating device, sintering machine waste heat boiler low pressure evaporator, sintering machine Economizer of Heat Recovery Boiler and the sintering machine waste heat boiler presses evaporimeter; Described central cooler waste heat boiler also comprises presses evaporimeter and low-pressure superheater in central cooler waste heat boiler condensation water heater, central cooler waste heat boiler oxygen-eliminating device, central cooler waste heat boiler low pressure evaporator, central cooler Economizer of Heat Recovery Boiler, the central cooler waste heat boiler.
Described sintering machine waste heat boiler condensation water heater links to each other by pipeline respectively with central cooler waste heat boiler oxygen-eliminating device with sintering machine waste heat boiler oxygen-eliminating device, central cooler waste heat boiler condensation water heater.
Described sintering machine waste heat boiler low pressure evaporator is connected by pipeline respectively with central cooler waste heat boiler oxygen-eliminating device with sintering machine waste heat boiler oxygen-eliminating device, central cooler waste heat boiler low pressure evaporator.
Between described sintering machine waste heat boiler oxygen-eliminating device and the sintering machine Economizer of Heat Recovery Boiler, be respectively equipped with feed pump between central cooler waste heat boiler oxygen-eliminating device and the central cooler Economizer of Heat Recovery Boiler, and connect by pipeline.
Described central cooler waste heat boiler oxygen-eliminating device links to each other by pipeline with low-pressure superheater.
Described sintering machine waste heat boiler drum links to each other by pipeline respectively with the central cooler Economizer of Heat Recovery Boiler with sintering machine Economizer of Heat Recovery Boiler, central cooler waste heat boiler drum.
Pressing in described sintering machine waste heat boiler drum and the sintering machine waste heat boiler in evaporimeter, central cooler waste heat boiler drum and the central cooler waste heat boiler presses evaporimeter to link to each other by pipeline respectively.
Described sintering machine waste heat boiler is single the pressure from the deoxygenation waste heat boiler.
Described central cooler waste heat boiler is that the two pressures of binary channels are from the deoxygenation waste heat boiler.
Compared with prior art, the invention has the beneficial effects as follows: by a kind of sintering machine and central cooler waste-heat recovery device are provided, comprise sintering machine waste heat boiler and central cooler waste heat boiler, described sintering machine waste heat boiler comprises sintering machine waste heat boiler drum, and it is provided with sintering machine waste heat boiler steam (vapor) outlet; Described central cooler waste heat boiler comprises central cooler waste heat boiler drum and middle pressure superheater, described central cooler waste heat boiler drum is provided with central cooler waste heat boiler steam (vapor) outlet, described sintering machine waste heat boiler steam (vapor) outlet is connected with central cooler waste heat boiler steam (vapor) outlet, and described central cooler waste heat boiler steam (vapor) outlet is connected with middle pressure superheater.By sintering machine and the central cooler waste-heat recovery device of this structure, its Effective Raise the quality of steam, improved steam turbine acting ability, thereby improved the efficient of waste heat recovery.
Description of drawings
The below is described in further detail the present invention with embodiment with reference to the accompanying drawings.
Fig. 1 is the structural representation of sintering machine of the prior art and central cooler waste-heat recovery device;
Fig. 2 is the structural representation of a kind of sintering machine of the present invention and central cooler waste-heat recovery device.
The specific embodiment
As shown in Figure 2, the described a kind of sintering machine of the embodiment of the invention and central cooler waste-heat recovery device 100, comprise sintering machine waste heat boiler 10 and central cooler waste heat boiler 20, described sintering machine waste heat boiler comprises sintering machine waste heat boiler drum 16, and it is provided with sintering machine waste heat boiler steam (vapor) outlet 161; Described central cooler waste heat boiler 20 comprises central cooler waste heat boiler drum 26 and middle pressure superheater 28, described central cooler waste heat boiler drum 26 is provided with central cooler waste heat boiler steam (vapor) outlet 261, described sintering machine waste heat boiler steam (vapor) outlet 161 is connected with central cooler waste heat boiler steam (vapor) outlet 261, and described central cooler waste heat boiler steam (vapor) outlet 261 is connected with middle pressure superheater 28.
Described sintering machine waste heat boiler 10 also comprises presses evaporimeter 15 in sintering machine waste heat boiler condensation water heater 11, sintering machine waste heat boiler oxygen-eliminating device 12, sintering machine waste heat boiler low pressure evaporator 13, sintering machine Economizer of Heat Recovery Boiler 14 and the sintering machine waste heat boiler; Described central cooler waste heat boiler 20 also comprises presses evaporimeter 25 and low-pressure superheater 27 in central cooler waste heat boiler condensation water heater 21, central cooler waste heat boiler oxygen-eliminating device 22, central cooler waste heat boiler low pressure evaporator 23, central cooler Economizer of Heat Recovery Boiler 24, the central cooler waste heat boiler.
Described sintering machine waste heat boiler condensation water heater 11 links to each other by pipeline respectively with central cooler waste heat boiler oxygen-eliminating device 22 with sintering machine waste heat boiler oxygen-eliminating device 12, central cooler waste heat boiler condensation water heater 21.Described sintering machine waste heat boiler low pressure evaporator 13 is connected by pipeline respectively with central cooler waste heat boiler oxygen-eliminating device 22 with sintering machine waste heat boiler oxygen-eliminating device 12, central cooler waste heat boiler low pressure evaporator 23.Between described sintering machine waste heat boiler oxygen-eliminating device 12 and the sintering machine Economizer of Heat Recovery Boiler 14, be respectively equipped with feed pump 18 between central cooler waste heat boiler oxygen-eliminating device 22 and the central cooler Economizer of Heat Recovery Boiler 24, and connect by pipeline.Described central cooler waste heat boiler oxygen-eliminating device 22 and low-pressure superheater 27 link to each other by pipeline.Described sintering machine waste heat boiler drum 16 links to each other by pipeline respectively with central cooler Economizer of Heat Recovery Boiler 24 with sintering machine Economizer of Heat Recovery Boiler 14, central cooler waste heat boiler drum 26.Pressing in described sintering machine waste heat boiler drum 16 and the sintering machine waste heat boiler in evaporimeter 15, central cooler waste heat boiler drum 26 and the central cooler waste heat boiler presses evaporimeter 25 to link to each other by pipeline respectively.
Described sintering machine waste heat boiler 10 is single the pressure from the deoxygenation waste heat boiler.Described central cooler waste heat boiler 20 is that the two pressures of binary channels are from the deoxygenation waste heat boiler.
For sintering machine waste heat boiler 10, waste gas enters from sintering machine air inlet 101, and 102 get rid of from the sintering machine gas outlet.Water enters sintering machine waste heat boiler oxygen-eliminating device 12 after sintering machine water inlet 111 enters 11 heat exchange of sintering machine waste heat boiler condensation water heater, water in the sintering machine waste heat boiler oxygen-eliminating device 12 provides the low-pressure steam deoxygenation by sintering machine waste heat boiler low pressure evaporator 13, water after the deoxygenation is driven in the sintering machine Economizer of Heat Recovery Boiler 14 by feed pump 18, be passed into again in the sintering machine waste heat boiler drum 16 through the water after 14 heat exchange of sintering machine Economizer of Heat Recovery Boiler, water in the sintering machine waste heat boiler drum 16 is pressed evaporimeter 15 evaporations in the sintering machine waste heat boiler after, generate saturated vapor, discharge from sintering machine waste heat boiler steam (vapor) outlet 161.
For central cooler waste heat boiler 20, waste gas enters from central cooler air inlet 201, and 202 get rid of from the central cooler gas outlet.Water enters central cooler waste heat boiler oxygen-eliminating device 22 after central cooler water inlet 211 enters 21 heat exchange of central cooler waste heat boiler condensation water heater, water in the central cooler waste heat boiler oxygen-eliminating device 22 provides the low-pressure steam deoxygenation by central cooler waste heat boiler low pressure evaporator 23, and the water after the deoxygenation is driven in the central cooler Economizer of Heat Recovery Boiler 24 by feed pump 18.The fractional saturation steam that central cooler waste heat boiler low pressure evaporator 23 produces produces low-pressure superheated steam by behind the low-pressure superheater 27, gets rid of from low-pressure superheated steam outlet 271; Be passed into again in the central cooler waste heat boiler drum 26 through the water after 24 heat exchange of central cooler Economizer of Heat Recovery Boiler, water in the central cooler waste heat boiler drum 26 through in press evaporimeter 25 to evaporate in the central cooler waste heat boiler after, generate saturated vapor, get rid of from central cooler waste heat boiler steam (vapor) outlet 261.
The saturated vapor that sintering machine waste heat boiler steam (vapor) outlet 161 is discharged with cause middle pressure superheater 28 after the saturated vapor of central cooler waste heat boiler steam (vapor) outlet 261 discharges mixes, through in steam after pressing superheater 28 overheated, therefrom press superheated steam outlet 281 to get rid of, thereby produce high-quality steam.
The above only is the explanation embodiments of the present invention; be not limited to the present invention, for a person skilled in the art, within the spirit and principles in the present invention all; any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a sintering machine and central cooler waste-heat recovery device comprise sintering machine waste heat boiler and central cooler waste heat boiler, and described sintering machine waste heat boiler comprises sintering machine waste heat boiler drum, and it is provided with sintering machine waste heat boiler steam (vapor) outlet; Described central cooler waste heat boiler comprises central cooler waste heat boiler drum and middle pressure superheater, described central cooler waste heat boiler drum is provided with central cooler waste heat boiler steam (vapor) outlet, it is characterized in that, described sintering machine waste heat boiler steam (vapor) outlet is connected with central cooler waste heat boiler steam (vapor) outlet, and described central cooler waste heat boiler steam (vapor) outlet is connected with middle pressure superheater.
2. sintering machine as claimed in claim 1 and central cooler waste-heat recovery device, it is characterized in that described sintering machine waste heat boiler also comprises in sintering machine waste heat boiler condensation water heater, sintering machine waste heat boiler oxygen-eliminating device, sintering machine waste heat boiler low pressure evaporator, sintering machine Economizer of Heat Recovery Boiler and the sintering machine waste heat boiler presses evaporimeter; Described central cooler waste heat boiler also comprises presses evaporimeter and low-pressure superheater in central cooler waste heat boiler condensation water heater, central cooler waste heat boiler oxygen-eliminating device, central cooler waste heat boiler low pressure evaporator, central cooler Economizer of Heat Recovery Boiler, the central cooler waste heat boiler.
3. sintering machine as claimed in claim 2 and central cooler waste-heat recovery device, it is characterized in that described sintering machine waste heat boiler condensation water heater links to each other by pipeline respectively with central cooler waste heat boiler oxygen-eliminating device with sintering machine waste heat boiler oxygen-eliminating device, central cooler waste heat boiler condensation water heater.
4. sintering machine as claimed in claim 2 and central cooler waste-heat recovery device, it is characterized in that described sintering machine waste heat boiler low pressure evaporator is connected by pipeline respectively with central cooler waste heat boiler oxygen-eliminating device with sintering machine waste heat boiler oxygen-eliminating device, central cooler waste heat boiler low pressure evaporator.
5. sintering machine as claimed in claim 2 and central cooler waste-heat recovery device, it is characterized in that, between described sintering machine waste heat boiler oxygen-eliminating device and the sintering machine Economizer of Heat Recovery Boiler, be respectively equipped with feed pump between central cooler waste heat boiler oxygen-eliminating device and the central cooler Economizer of Heat Recovery Boiler, and connect by pipeline.
6. sintering machine as claimed in claim 2 and central cooler waste-heat recovery device is characterized in that, described central cooler waste heat boiler oxygen-eliminating device links to each other by pipeline with low-pressure superheater.
7. sintering machine as claimed in claim 1 or 2 and central cooler waste-heat recovery device, it is characterized in that described sintering machine waste heat boiler drum links to each other by pipeline respectively with the central cooler Economizer of Heat Recovery Boiler with sintering machine Economizer of Heat Recovery Boiler, central cooler waste heat boiler drum.
8. sintering machine as claimed in claim 1 or 2 and central cooler waste-heat recovery device, it is characterized in that, press in described sintering machine waste heat boiler drum and the sintering machine waste heat boiler in evaporimeter, central cooler waste heat boiler drum and the central cooler waste heat boiler and press evaporimeter to link to each other by pipeline respectively.
9. sintering machine as claimed in claim 1 and central cooler waste-heat recovery device is characterized in that, described sintering machine waste heat boiler is single the pressure from the deoxygenation waste heat boiler.
10. sintering machine as claimed in claim 1 and central cooler waste-heat recovery device is characterized in that, described central cooler waste heat boiler is that the two pressures of binary channels are from the deoxygenation waste heat boiler.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210502659.8A CN102980412B (en) | 2012-11-30 | 2012-11-30 | Waste heat recovery device for sintering machine and circulating cooling machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210502659.8A CN102980412B (en) | 2012-11-30 | 2012-11-30 | Waste heat recovery device for sintering machine and circulating cooling machine |
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| CN102980412A true CN102980412A (en) | 2013-03-20 |
| CN102980412B CN102980412B (en) | 2015-03-25 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927305A (en) * | 2016-05-04 | 2016-09-07 | 上海宝钢节能环保技术有限公司 | Heat, power and cooling multi-generation system adopting sintering low-temperature waste heat |
| CN105973016A (en) * | 2016-05-04 | 2016-09-28 | 上海宝钢节能环保技术有限公司 | System of step-by-step recycling and gradient utilization for sintering residual heat resources |
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| CN201218660Y (en) * | 2008-04-24 | 2009-04-08 | 西安思安新能源有限公司 | Power generation apparatus by waste heat of sintering production |
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| CN203011162U (en) * | 2012-11-30 | 2013-06-19 | 中国船舶重工集团公司第七〇三研究所无锡分部 | Device for recovering waste heat of sintering machine and circular cooler |
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2012
- 2012-11-30 CN CN201210502659.8A patent/CN102980412B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201218660Y (en) * | 2008-04-24 | 2009-04-08 | 西安思安新能源有限公司 | Power generation apparatus by waste heat of sintering production |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927305A (en) * | 2016-05-04 | 2016-09-07 | 上海宝钢节能环保技术有限公司 | Heat, power and cooling multi-generation system adopting sintering low-temperature waste heat |
| CN105973016A (en) * | 2016-05-04 | 2016-09-28 | 上海宝钢节能环保技术有限公司 | System of step-by-step recycling and gradient utilization for sintering residual heat resources |
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| CN102980412B (en) | 2015-03-25 |
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Effective date of registration: 20151008 Address after: 150000 No. 35, Honghu Road, Yingbin Road, Harbin hi tech Development Zone, Heilongjiang, China Patentee after: Harbin broad power technology development Co., Ltd. Address before: 214151 Jiangsu province Binhu District of Wuxi City Helu Zhen Qin New Branch Road No. 19 Patentee before: No.703 Research Institute of China Shipbuilding Industry Corporation |