CN201876144U - Sintering afterheat power generating system - Google Patents
Sintering afterheat power generating system Download PDFInfo
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- CN201876144U CN201876144U CN2010206248008U CN201020624800U CN201876144U CN 201876144 U CN201876144 U CN 201876144U CN 2010206248008 U CN2010206248008 U CN 2010206248008U CN 201020624800 U CN201020624800 U CN 201020624800U CN 201876144 U CN201876144 U CN 201876144U
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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 utility model discloses a sintering afterheat power generating system which comprises a sintering ore cooling high-temperature smoke afterheat power generating system and a sintering ore cooling low-temperature smoke afterheat recycling system. The sintering ore cooling high-temperature smoke afterheat power generating system comprises a high-temperature section afterheat boiler (8) connected with a first section of smoke hood (23) and a second section of smoke hood (22) of a circular cooler (1), wherein the upper part of the high-temperature section afterheat boiler (8) is connected with a high-temperature section steam turbine (2) with a high-temperature section power generator (3) through a pipeline, is then sequentially connected with a high-temperature section condenser (4) and a high-temperature section condensation water pump (5) and is finally connected to the lower part of the high-temperature section afterheat boiler (8). With the adoption of the way of utilizing afterheat of cooling smoke of a sintering ore in a stepped form, the afterheat of the cooing smoke of the sintering ore can be more sufficiently recycled and utilized.
Description
Technical field
The utility model relates to a kind of heat recovery system, particularly a kind of sintering waste heat generating system.
Background technology
The recycling of residual heat of exhaust flue gas is one of emphasis of present steel industry energy-saving and emission-reduction in the sintering deposit cooling procedure.Current, people generally adopt the waste heat boiler flue gas waste heat recovery that temperature is higher, make it to produce the generating of steam and pushing turbine.And for the flue gas of temperature lower (150～250 ℃), the classification recovery and the cascade utilization method of residual heat resources in a kind of sintering process are disclosed except CN200810011946.2, proposing this partial fume and can be used to feed ignition furnace as outside combustion air or the warm-up combustion-supporting air, all is directly to diffuse at present basically.The result who directly diffuses is not only a large amount of fume afterheats and does not obtain recycling, and the unordered discharging of dust has also brought environmental problem simultaneously in the flue gas.
The utility model content
The purpose of this utility model is to provide a kind of electricity generation system that can make full use of sintering cooled flue gas waste heat.
The purpose of this utility model is achieved through the following technical solutions:
A kind of sintering waste heat generating system comprises: sintering deposit cooling down high-temperature fume afterheat electricity generation system and sintering deposit cooling low-temperature flue gas residual neat recovering system is characterized in that:
Described sintering deposit cooling down high-temperature fume afterheat electricity generation system comprises one section high temperature section waste heat boiler that petticoat pipe links to each other with two sections petticoat pipes with central cooler, and high temperature section waste heat boiler top connects by pipeline and connects the high temperature section condenser successively behind the high temperature section steam turbine have the high temperature section generator and the high temperature section condensate pump is connected to high temperature section waste heat boiler bottom;
The high temperature section waste heat boiler has absorbed behind the high-temperature flue gas of one section petticoat pipe of central cooler and two sections petticoat pipe discharges and has produced superheated steam, superheated steam enters the high temperature section steam turbine and drives the high temperature section generator for electricity generation, and the steam discharge of high temperature section steam turbine enters that the high temperature section condenser is cooled to water after the high temperature section condensate pump is sent the high temperature section waste heat boiler back to;
Sintering deposit cooling low-temperature flue gas residual neat recovering system comprises the low-temperature zone waste heat boiler top that is connected by pipeline with three sections petticoat pipes of central cooler, and the top of low-temperature zone waste heat boiler has by the pipeline connection and connects the bottom that is connected to the low-temperature zone waste heat boiler behind low-temperature zone condenser and the low-temperature zone condensate pump behind the low-temperature zone steam turbine of low-temperature zone generator successively;
The low-temperature zone waste heat boiler has absorbed the saturated vapor that produces behind the low-temperature flue gas of discharging from three sections petticoat pipes of central cooler and has entered the low-temperature zone steam turbine and drive the low-temperature zone generator for electricity generation, and the steam discharge of low-temperature zone steam turbine enters that the low-temperature zone condenser is cooled to water after the low-temperature zone condensate pump is sent the low-temperature zone waste heat boiler back to.
For the cycling and reutilization high-temperature flue gas, the bottom of described high temperature section waste heat boiler connects the bottom that circulating fan and flue gas recirculation valve are connected to central cooler successively by pipeline, and described circulating fan inlet is provided with the suction cold blast sliding valve.
The rear portion of described circulating fan also is connected to chimney by the flue gas by-passing valve, and the bottom of low-temperature zone waste heat boiler is connected to chimney by air-introduced machine.
Described high temperature section waste heat boiler and low-temperature zone waste heat boiler can adopt single steam generator system of pressing boiler, two pressure boiler or band flash distillation as the case may be.
The utility model is when the high temperature section flue gas generation superheated steam that adopts the sintering deposit cooling procedure generates electricity, also adopt the low-temperature zone flue gas generation saturated vapor of sintering deposit cooling procedure to generate electricity, significantly increased the recovery of fume afterheat amount in the sintering deposit cooling procedure, for fully recycling sintering deposit cooled flue gas residual heat resources, further realizing that energy-saving and emission-reduction provide a reliable approach.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Among the figure, part 1 is a central cooler, and part 2 is the high temperature section steam turbine, part 3 is the high temperature section generator, part 4 is the high temperature section condenser, and part 5 is the high temperature section condensate pump, and part 6 is the high parameter drum, part 7 is the low parameter drum, part 8 is the high temperature section waste heat boiler, and part 9 is for inhaling cold blast sliding valve, and part 10 is a circulating fan, part 11 is the flue gas recirculation valve, part 12 is the flue gas by-passing valve, and part 13 is a chimney, and part 14 is an air-introduced machine, part 15 is the low-temperature zone waste heat boiler, part 16 is the low-temperature zone condensate pump, and part 17 is the low-temperature zone condenser, and part 18 is the low-temperature zone generator, part 19 is the low-temperature zone steam turbine, part 20 is the low-temperature zone drum, and part 21 is three sections petticoat pipes, and part 22 is two sections petticoat pipes, part 23 is one section petticoat pipe, and part 24 is the low parameter economizer; Part 25 is the low parameter evaporimeter; Part 26 is the high parameter economizer; Part 27 is the high parameter evaporimeter; Part 28 is the high parameter superheater.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
As shown in Figure 1, the utility model comprises sintering deposit cooling down high-temperature fume afterheat electricity generation system and sintering deposit cooling low-temperature flue gas residual neat recovering system,
High temperature section waste heat boiler 8 has absorbed behind the high-temperature flue gas of one section petticoat pipe 23 of central cooler 1 and two sections petticoat pipe 22 discharges and has produced superheated steam, superheated steam enters high temperature section steam turbine 2 and drives 3 generatings of high temperature section generator, the steam discharge of high temperature section steam turbine 2 enters that high temperature section condenser 4 is cooled to water after high temperature section condensate pump 5 backs divide two-way to send high temperature section waste heat boiler 8 back to, one tunnel condensate water enters high parameter economizer 26, the steam water interface that produces enters high parameter drum 6 and carries out carbonated drink separation, the water that separates enters and enters high parameter drum 6 again after 27 heat absorptions of high parameter evaporimeter become saturated vapor, the steam that separates enters high parameter superheater 28, becomes behind the superheated steam to enter 2 actings of high temperature section steam turbine as main steam.Another road condensate water enters low parameter economizer 24, the steam water interface that produces enters low parameter drum 7 and carries out carbonated drink separation, the water that separates enters and enters low parameter drum 7 again after 25 heat absorptions of low parameter evaporimeter become saturated vapor, and the steam that separates enters 2 actings of high temperature section steam turbine as filling.So far finish a thermodynamic cycle.Sintering deposit cooling down high-temperature flue gas passes through high temperature section waste heat boiler 8 absorbing and cooling temperatures after circulating fan 10 returns the high temperature section bellows of central cooler 1 or discharges from chimney 13.
Low-temperature zone waste heat boiler 15 has absorbed the saturated vapor that produces behind the low-temperature flue gas of discharging from three sections petticoat pipes 21 of central cooler 1 and has entered low-temperature zone steam turbine 19 and drive 18 generatings of low-temperature zone generator, the steam discharge of low-temperature zone steam turbine 19 enters that low-temperature zone condenser 17 is cooled to water after low-temperature zone condensate pump 16 is sent low-temperature zone waste heat boiler 15 back to, and produces saturated vapor again and then finish a thermodynamic cycle in low-temperature zone waste heat boiler 15.Aspirated by air-introduced machine 14 behind sintering deposit cooling low-temperature flue gas process low-temperature zone waste heat boiler 15 absorbing and cooling temperatures, after chimney 13 discharges.
Current, the outlet flue gas of the outlet flue gas of sintering deposit cooling down high-temperature fume afterheat electricity generation system high temperature section waste heat boiler and sintering deposit cooling low-temperature flue gas afterheat generating system low-temperature zone waste heat boiler can adopt same chimney to airborne release, or adopts different chimneys to airborne release respectively.
Sintering deposit cooling down high-temperature fume afterheat electricity generation system wherein adopts the steam thermodynamic cycle, can adopt single steam generator system of pressing boiler, two pressure boiler or band flash distillation as the case may be, and the change of steam generator system form is all within the protection domain of this patent.
If the outlet flue gas of sintering deposit cooling down high-temperature fume afterheat electricity generation system high temperature section waste heat boiler can adopt directly by the mode (mode of employing flue gas recirculation of chimney to airborne release or employing flue gas recirculation; the circulating fan inlet is provided with inhales cold blast sliding valve), the change of fume emission mode is all within the protection domain of this patent.
As a kind of prioritization scheme, can before described low-temperature zone steam turbine, storage heater be set.
Claims (3)
1. sintering waste heat generating system comprises: sintering deposit cooling down high-temperature fume afterheat electricity generation system and sintering deposit cooling low-temperature flue gas residual neat recovering system is characterized in that:
Described sintering deposit cooling down high-temperature fume afterheat electricity generation system comprises the high temperature section waste heat boiler (8) that links to each other with two sections petticoat pipes (22) with one section petticoat pipe (23) of central cooler (1), and high temperature section waste heat boiler (8) top connects by pipeline and connects high temperature section condenser (4) successively behind the high temperature section steam turbine (2) have high temperature section generator (3) and high temperature section condensate pump (5) is connected to high temperature section waste heat boiler (8) bottom;
High temperature section waste heat boiler (8) has absorbed behind the high-temperature flue gas of one section petticoat pipe (23) of central cooler (1) and two sections petticoat pipes (22) discharge and has produced superheated steam, superheated steam enters high temperature section steam turbine (2) and drives high temperature section generator (3) generating, and the steam discharge of high temperature section steam turbine (2) enters that high temperature section condenser (4) is cooled to water after high temperature section condensate pump (5) is sent high temperature section waste heat boiler (8) back to;
Sintering deposit cooling low-temperature flue gas residual neat recovering system comprises low-temperature zone waste heat boiler (15) top that is connected by pipeline with three sections petticoat pipes (21) of central cooler (1), and the top of low-temperature zone waste heat boiler (15) has by the pipeline connection and connects the bottom that is connected to low-temperature zone waste heat boiler (15) behind low-temperature zone condenser (17) and the low-temperature zone condensate pump (16) behind the low-temperature zone steam turbine (19) of low-temperature zone generator (18) successively;
Low-temperature zone waste heat boiler (15) has absorbed the saturated vapor that produces behind the low-temperature flue gas of discharging from three sections petticoat pipes (21) of central cooler (1) and has entered low-temperature zone steam turbine (19) and drive low-temperature zone generator (18) generating, and the steam discharge of low-temperature zone steam turbine (19) enters that low-temperature zone condenser (17) is cooled to water after low-temperature zone condensate pump (16) is sent low-temperature zone waste heat boiler (15) back to.
2. sintering waste heat generating system as claimed in claim 1, it is characterized in that: the bottom of described high temperature section waste heat boiler (8) connects the bottom that circulating fan (10) and flue gas recirculation valve (11) are connected to central cooler (1) successively by pipeline, and described circulating fan (10) inlet is provided with inhales cold blast sliding valve (9).
3. sintering waste heat generating system as claimed in claim 1 or 2, it is characterized in that: the rear portion of described circulating fan (10) also is connected to chimney (13) by flue gas by-passing valve (12), and the bottom of low-temperature zone waste heat boiler (15) is connected to chimney (13) by air-introduced machine (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206248008U CN201876144U (en) | 2010-11-25 | 2010-11-25 | Sintering afterheat power generating system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206248008U CN201876144U (en) | 2010-11-25 | 2010-11-25 | Sintering afterheat power generating system |
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| CN201876144U true CN201876144U (en) | 2011-06-22 |
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| CN2010206248008U Expired - Lifetime CN201876144U (en) | 2010-11-25 | 2010-11-25 | Sintering afterheat power generating system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968317A (en) * | 2010-11-25 | 2011-02-09 | 中冶赛迪工程技术股份有限公司 | Sintering waste heat generating system |
| CN103615908A (en) * | 2013-12-11 | 2014-03-05 | 北京志能祥赢节能环保科技有限公司 | Combined waste heat recycling system for stepping-type flat-burning sintering machine |
| CN104833218A (en) * | 2015-05-13 | 2015-08-12 | 湖南中冶长天节能环保技术有限公司 | Sintering waste heat power generation device with external overheating afterburner and waste heat utilization method |
| CN107036062A (en) * | 2017-05-26 | 2017-08-11 | 中冶华天南京工程技术有限公司 | A kind of central cooler waste gas and sintering smoke from big gas duct waste heat comprehensive utilization system |
| CN108444301A (en) * | 2018-03-19 | 2018-08-24 | 四川德胜集团钒钛有限公司 | Sintering mine sensible heat recycles electricity generation system and method |
| CN112728952A (en) * | 2020-12-30 | 2021-04-30 | 中冶南方武汉钢铁设计研究院有限公司 | Comprehensive utilization device for flue gas waste heat of large hood at tail of sintering machine |
-
2010
- 2010-11-25 CN CN2010206248008U patent/CN201876144U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968317A (en) * | 2010-11-25 | 2011-02-09 | 中冶赛迪工程技术股份有限公司 | Sintering waste heat generating system |
| CN103615908A (en) * | 2013-12-11 | 2014-03-05 | 北京志能祥赢节能环保科技有限公司 | Combined waste heat recycling system for stepping-type flat-burning sintering machine |
| CN103615908B (en) * | 2013-12-11 | 2015-03-11 | 北京志能祥赢节能环保科技有限公司 | Combined waste heat recycling system for stepping-type flat-burning sintering machine |
| CN104833218A (en) * | 2015-05-13 | 2015-08-12 | 湖南中冶长天节能环保技术有限公司 | Sintering waste heat power generation device with external overheating afterburner and waste heat utilization method |
| CN107036062A (en) * | 2017-05-26 | 2017-08-11 | 中冶华天南京工程技术有限公司 | A kind of central cooler waste gas and sintering smoke from big gas duct waste heat comprehensive utilization system |
| CN108444301A (en) * | 2018-03-19 | 2018-08-24 | 四川德胜集团钒钛有限公司 | Sintering mine sensible heat recycles electricity generation system and method |
| CN112728952A (en) * | 2020-12-30 | 2021-04-30 | 中冶南方武汉钢铁设计研究院有限公司 | Comprehensive utilization device for flue gas waste heat of large hood at tail of sintering machine |
| CN112728952B (en) * | 2020-12-30 | 2024-04-30 | 中冶南方武汉钢铁设计研究院有限公司 | Comprehensive utilization device for waste heat of flue gas of large hood at tail of sintering machine |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110622 |
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| CX01 | Expiry of patent term |