CN201666737U - Pure low-temperature afterheat generator of sinter cooler - Google Patents

Pure low-temperature afterheat generator of sinter cooler Download PDF

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Publication number
CN201666737U
CN201666737U CN2009201101682U CN200920110168U CN201666737U CN 201666737 U CN201666737 U CN 201666737U CN 2009201101682 U CN2009201101682 U CN 2009201101682U CN 200920110168 U CN200920110168 U CN 200920110168U CN 201666737 U CN201666737 U CN 201666737U
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CN
China
Prior art keywords
sinter cooler
drum
cooler
afterheat
boiler
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2009201101682U
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Chinese (zh)
Inventor
李冬庆
贾涛
杨波
张恒春
么健
柴磊
米静
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BEIJING BESTPOWER ELECTRICAL TECHNOLOGY Co Ltd
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BEIJING BESTPOWER ELECTRICAL TECHNOLOGY Co Ltd
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Priority to CN2009201101682U priority Critical patent/CN201666737U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/25Process efficiency

Abstract

The utility model discloses a pure low-temperature afterheat generator of a sinter cooler, which comprises a smoke wind system, an afterheat boiler system and a turbo generator system. The utility model belongs to a device for generating electricity by using afterheat smoke gas, the smoke gas sent out from a cooler passes through an afterheat boiler, a circulating fan and the sinter cooler, and then enters the afterheat boiler to be circularly used. The utility model can sufficiently utilize the afterheat of the smoke gas, can raise the temperature of the smoke gas entering the boiler, can reduce the temperature fluctuation range, and has the advantages of compact structure, small area of occupied ground, convenient transformation, low investment and simple operation and maintenance. Compared with an ordinary device, the utility model improves the electricity generation efficiency by 20 percent, and reduces the electricity consumption of the system per se by 5 percent.

Description

A kind of sinter cooler pure low-temperature cogeneration device
Technical field
The utility model relates to a kind of sinter cooler pure low-temperature cogeneration device of metallurgy industry.
Background technology
The ore deposit temperature that existing well-known metallurgy sintered machine burning is born reaches 700~800 ℃, cold air by cooler high temperature sintering mineral aggregate layer after temperature raise and to reach 300~450 ℃, usually this part residual heat resources all is discharged in the air in vain, cause very big energy waste, also caused the thermal pollution of environment.In order to make full use of this residual heat resources, adopt pure low-temperature cogeneration technology, reclaim this part of waste heat and be used for generating, produce the electric energy of high-efficiency cleaning.
Current, sinter cooler utilizes the mode of cogeneration to mainly contain two kinds: a kind of is the flue gas open circulation; A kind of is closed cycle.Open circulation, air enters boiler after heating up by the bed of material under the effect of air blast, and the flue gas after the heat release enters atmosphere under the effect of air-introduced machine; The difference of closed cycle is to utilize circulating fan that the flue gas of boiler export is sent into cooler cooling mineral aggregate again.
Existing closed circulation system need increase a powerful circulating fan, causes: (1) system from power consumption rate very up to 25%; (2) the disposable cost of engineering greatly increases; (3) the idle waste that has also caused resource that caused of former cooler.
Summary of the invention
For solving problem and the defective that exists in above-mentioned, the utility model provides that a kind of system is simple, investment is saved, system is from the low sinter cooler pure low-temperature cogeneration device of electricity consumption.This device is suitable for newly built and improved sintering machine requirement, and the outlet temperature of cooling exhaust improves 20~30 ℃ than common mode, improves generating efficiency 20%, and the reduction system is from power consumption rate 5%.
The utility model is achieved through the following technical solutions:
A kind of sinter cooler pure low-temperature cogeneration device that the utility model is related, this device comprises:
A kind of sinter cooler pure low-temperature cogeneration device comprises air and gas system, afterheat boiler system and steam turbine generator system, and circulates between described air and gas system, afterheat boiler system and steamer electricity generation system and be connected;
Described air and gas system comprises MOD, circulating fan, sinter cooler and waste heat boiler, and described waste heat boiler is connected with the sinter cooler circulation with circulating fan by MOD;
Described afterheat boiler system comprises waste heat boiler, drum and feed pump, and described drum is connected with waste heat boiler with feed pump;
Described steamer electricity generation system comprises Turbo-generator Set, condenser and condensate pump, and described steamer generating set one end links to each other with described waste heat boiler, and the other end is connected in described waste heat boiler by described condenser and condensate pump.
Described air and gas system is the flue gas recirculation using system;
Described sinter cooler includes bellows, and includes one or more air inlets in the bellows;
Described sinter cooler comprises at least two sections, and two sections cooler bottom bellows that comprised are to separate or connect together;
The circulating fan of described every section cooler has only one, and every circulating fan uses as circulating fan, or uses as air blast;
Described drum comprises 3, i.e. deoxygenation drum, low-pressure drum, high pressure drum;
Described drum comprises 2, i.e. low pressure deoxygenation drum and high pressure drum.
The beneficial effect of the technical scheme that the utility model provides is:
1, this device can make full use of fume afterheat, improves and goes into the kiln gas temperature and reduce its fluctuation range.
2, the high temperature circulation blower fan can be used as the circulating fan use, also can be used as air blast and uses.
3, compact conformation, floor space is little, and it is convenient to transform, and invests lessly, and Operation and Maintenance is simple.
4, improve generating efficiency 20% than general device, the minimizing system is from electricity consumption 5%.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, the utility model embodiment is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is a device schematic diagram of the present utility model, as shown in the figure, this device comprises air and gas system, afterheat boiler system and steam turbine generator, wherein, and air and gas system: form by high temperature circulation blower fan 7.1~7.2, sinter cooler 9~10, MOD 8.1~8.8, flue, waste heat boiler 1; Wherein the flue gas of heat boiler outlet is advanced sinter cooler by drum under the effect of high temperature circulation blower fan, the low temperature hot blast enters waste heat boiler by the sintering deposit bed of material heat absorption intensification back of high temperature on the cooler by flue and MOD, high-temperature flue gas in boiler by flowing out boiler after the heating surface heat release, enter the high temperature circulation blower fan again, recycle;
Steam turbine generator system: comprise Turbo-generator Set 2, condenser 3 and condensate pump 4; Wherein the steam in the waste heat boiler enters steam turbine, promotes the Turbo-generator Set generating, and the steam of finishing merit is condensed into water in condenser, send into afterheat boiler system by condensate pump again.
Afterheat boiler system: comprise waste heat boiler 1, drum 6.1~6.3 and feed pump 5.1~5.2; Wherein, the high-quality steam of two kinds of pressure ratings of waste heat boiler generation is exported to steam turbine through piping;
The specific implementation process of present embodiment: the flue gas of waste heat boiler 1 outlet enters the sinter cooler bellows by MOD 8.1 and MOD 8.2 backs respectively under the effect of circulating fan 7.1 and circulating fan 7.2, this moment, MOD 8.3 and MOD 8.4 were in closed condition.Flue gas distributes the back by temperature rising behind the sinter bed through bellows, flue gas enters waste heat boiler 1 high temperature section after by MOD 8.8 in the sinter cooler 9, flue gas enters waste heat boiler 1 low-temperature zone after by MOD 8.7 in the sinter cooler 10, and mixes the back by the rear portion heating surface with the high temperature section flue gas.The steam that waste heat boiler high pressure drum 6.3 comes out enters Turbo-generator Set 2 through overheated back as main steam, and the steam that low-pressure drum 6.2 comes out enters Turbo-generator Set 2 through overheated back as filling.Steam after the acting is condensed into liquid under the effect of condenser 3, be delivered to deoxygenation drum 6.1 by condensate pump 4, send into the low-pressure drum 6.2 and the high pressure drum 6.3 of boiler then under the effect of feed pump 5.1 and feed pump 5.2 respectively, wherein low-pressure drum and deoxygenation drum can be merged into a drum.
When waste heat boiler 1 or electricity generation system break down, by closing MOD 8.1, MOD 8.2, MOD 8.7 and MOD 8.8, open MOD 8.3, MOD 8.4, MOD 8.5 and MOD 8.6, afterheat generating system and sinter cooler can be kept apart, guarantee not influence cooler and normally move.
Above-mentioned sinter cooler blower fan is arranged to the circulating fan of high temperature resistant (below 150 ℃).The heat boiler outlet flue gas enters the high steam superheat section and the part evaporator section of waste heat boiler after raising by I section cooler material layer temperature under the effect of high temperature circulation blower fan, after raising by the cooler material layer temperature under the effect of II section cooler high temperature circulation blower fan, enter flue gas after waste heat boiler and the high pressure section cooling and mixes the back and pass through the rear portion heating surface, export the high temperature circulation blower fan that flue gas enters I section and II section sinter cooler more respectively.The waste heat boiler high pressure section produces high steam and enters Turbo-generator Set as main steam, and low pressure stage produces low-pressure steam and enters Turbo-generator Set as filling.Steam discharge after the acting is condensed into liquid under the effect of condenser, be delivered to the deoxygenation drum by condensate pump, sends into the high-low pressure part of boiler then under the effect of feed pump respectively.
The above; it only is the preferable specific embodiment of the utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claim.

Claims (7)

1. a sinter cooler pure low-temperature cogeneration device is characterized in that described device comprises air and gas system, afterheat boiler system and steam turbine generator system, and circulates between described air and gas system, afterheat boiler system and steamer electricity generation system and be connected;
Described air and gas system comprises MOD, circulating fan, sinter cooler and waste heat boiler, and described waste heat boiler is connected with the sinter cooler circulation with circulating fan by MOD;
Described afterheat boiler system comprises waste heat boiler, drum and feed pump, and described drum is connected with waste heat boiler with feed pump;
Described steamer electricity generation system comprises Turbo-generator Set, condenser and condensate pump, and described steamer generating set one end links to each other with described waste heat boiler, and the other end is connected in described waste heat boiler by described condenser and condensate pump.
2. sinter cooler pure low-temperature cogeneration device according to claim 1 is characterized in that described air and gas system is the flue gas recirculation using system.
3. sinter cooler pure low-temperature cogeneration device according to claim 1 is characterized in that described sinter cooler includes bellows, and includes one or more air inlets in the bellows.
4. sinter cooler pure low-temperature cogeneration device according to claim 1 is characterized in that described sinter cooler comprises at least two sections, and two sections cooler bottom bellows that comprised are to separate or connect together.
5. sinter cooler pure low-temperature cogeneration device according to claim 4 is characterized in that the circulating fan of described every section cooler has only one, and every circulating fan uses as circulating fan, or uses as air blast.
6. sinter cooler pure low-temperature cogeneration device according to claim 1 is characterized in that described drum comprises 3, i.e. deoxygenation drum, low-pressure drum, high pressure drum.
7. sinter cooler pure low-temperature cogeneration device according to claim 1 is characterized in that described drum comprises 2, i.e. low pressure deoxygenation drum and high pressure drum.
CN2009201101682U 2009-07-23 2009-07-23 Pure low-temperature afterheat generator of sinter cooler Expired - Fee Related CN201666737U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009201101682U CN201666737U (en) 2009-07-23 2009-07-23 Pure low-temperature afterheat generator of sinter cooler

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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102062384A (en) * 2011-02-10 2011-05-18 孙军如 Double-inlet double-outlet waste heat boiler system
CN104374209A (en) * 2014-05-29 2015-02-25 山西太钢不锈钢股份有限公司 Method for recovering sintering waste heat by using fan and rear guide vane of the fan
CN106225491A (en) * 2016-07-19 2016-12-14 武汉都市环保工程技术股份有限公司 Sinter cooler smoke waste heat utilization system and sinter cooler

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102062384A (en) * 2011-02-10 2011-05-18 孙军如 Double-inlet double-outlet waste heat boiler system
CN104374209A (en) * 2014-05-29 2015-02-25 山西太钢不锈钢股份有限公司 Method for recovering sintering waste heat by using fan and rear guide vane of the fan
CN106225491A (en) * 2016-07-19 2016-12-14 武汉都市环保工程技术股份有限公司 Sinter cooler smoke waste heat utilization system and sinter cooler

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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: 20101208

Termination date: 20170723

CF01 Termination of patent right due to non-payment of annual fee