CN106091705A - A kind of improve the method and apparatus that sintering waste heat utilizes cluster generated energy - Google Patents
A kind of improve the method and apparatus that sintering waste heat utilizes cluster generated energy Download PDFInfo
- Publication number
- CN106091705A CN106091705A CN201610430813.3A CN201610430813A CN106091705A CN 106091705 A CN106091705 A CN 106091705A CN 201610430813 A CN201610430813 A CN 201610430813A CN 106091705 A CN106091705 A CN 106091705A
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- China
- Prior art keywords
- cluster
- waste heat
- sintering waste
- sintering
- boiler
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
-
- 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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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
A kind of improve the method and apparatus that sintering waste heat utilizes cluster generated energy; method is: utilize cluster to be connected in parallel on delivery trunk the two above sintering waste heats of set; delivery trunk is connected with gas fired-boiler; when wherein any one sintering waste heat utilizes cluster to occur shutting down the phenomenon of the frequent off-the-line of sintering exhaust-heat boiler caused due to sintering system, Gas-Fire tube boilers Water utilizes cluster to carry steam by delivery trunk to sintering waste heat.The device of this method and correspondence thereof have energy-saving and cost-reducing, environmental pollution is little, service life of equipment length, good in economic efficiency advantage.
Description
Technical field
The present invention relates to sintering waste heat and utilize technical field of power generation, especially relate to a kind of sintering waste heat that improves and utilize cluster
The method and apparatus of generated energy.
Background technology
In iron and steel production technology, sintering circuit energy consumption is higher, typically accounts for the 10-20% of whole enterprise power consumption, therefore sinters
In the waste vapour of rear discharge, UTILIZATION OF VESIDUAL HEAT IN becomes one of energy-saving and cost-reducing major measure of iron and steel enterprise.But owing to SINTERING PRODUCTION exists
Systematic jitters, result in the fluctuation of high-temperature steam steam production, and then make steam turbine power generation efficiency longtime running unstable
Fixed, do not reach design standard.
Summary of the invention
It is an object of the invention to overcome shortcoming present in prior art, it is provided that a kind of sintering waste heat that improves utilizes cluster
The method and device of generated energy, thus solve the frequent off-the-line of Steam Turbine during sintering waste heat utilizes and shut down and generated energy instability
Problem, the technical scheme is that and a kind of improve the method that sintering waste heat utilizes cluster generated energy, it is characterised in that: described side
Method is: utilizing cluster to be connected in parallel on delivery trunk the two above sintering waste heats of set, described delivery trunk is connected with gas fired-boiler, when
The most any one of sintering waste heat utilizes cluster to occur, and shutting down, due to sintering system, the sintering exhaust-heat boiler caused frequently solves
During the phenomenon arranged, described Gas-Fire tube boilers Water utilizes cluster to carry steam by described delivery trunk to described sintering waste heat.
The technical characteristic of the present invention also has: Redundant Coke-oven Gas is delivered in described gas fired-boiler.
Technical scheme also has: this device includes: described gas fired-boiler；Total by branch circuit parallel connection to described output
Two the above sintering waste heat of set of pipe utilize cluster；The gas fired-boiler steam output main valve being arranged on described delivery trunk
Door；The branch road being arranged on every described branch road controls valve.
The technical characteristic of the present invention also has: described device includes being burnt by three sets on branch circuit parallel connection to described delivery trunk
Surplus heat utilization cluster, respectively sintering waste heat utilize cluster A, sintering waste heat to utilize cluster B and sintering waste heat to utilize cluster C,
Corresponding, utilize at described sintering waste heat and on cluster A branch road, be provided with branch road control valve A, utilize cluster B at described sintering waste heat
Branch road is provided with branch road and controls valve B, utilizes at described sintering waste heat and is provided with branch road control valve C on cluster C branch road.
The technical characteristic of the present invention also has: described sintering waste heat utilizes and is provided with 320 m in cluster A2Sintering waste heat
Electricity generation boiler, described sintering waste heat utilizes and is provided with 400 m in cluster B2Sintering waste heat generating boiler, described sintering waste heat
Utilize and cluster C is provided with 400 m2Sintering waste heat generating boiler.
The beneficial effects of the present invention is: 1) this method by the more than needed coke-stove gas of iron and steel enterprise self, set up combustion gas
Boiler, so that the steam that gas fired-boiler produces to be used for solving the problem of the outside filling of sintering waste heat generating cluster needs, thus carries
High cluster integral sintered cogeneration amount, adds economic benefit, can also reduce diffusing of Redundant Coke-oven Gas simultaneously, reduce
Environmental pollution；2) by gas fired-boiler filling mode, the steam turbine off-the-line owing to sintering waste heat deficiency causes, electromotor are solved
System frequent shutdown phenomenon, decreases the impact caused electrical network because of electricity generation system fluctuation, it is achieved that electricity generation system is reliable and secure
The purpose run, amplitude peak improves generated energy, extends the service life of whole steam turbine and generating set, reduces fortune
Row cost；3) device of this method and correspondence thereof have energy-saving and cost-reducing, environmental pollution is little, service life of equipment length, economic benefit
Good advantage.
Accompanying drawing explanation
Accompanying drawing 1 is equipment therefor structural representation of the present invention, wherein 1, gas fired-boiler, and 2, delivery trunk, 3, gas fired-boiler
Steam output total valve, 4, branch road control valve A, 5, branch road control valve B, 6, branch road control valve C, 7, sintering waste heat utilize
Cluster A, 8, sintering waste heat utilize cluster B, 9, sintering waste heat utilize cluster C, 10, sintering waste heat utilize cluster A branch road, 11, burn
Surplus heat utilization cluster B branch road, 12, sintering waste heat utilize cluster C branch road.
Detailed description of the invention
Below in conjunction with the accompanying drawings, the detailed description of the invention of the present invention is illustrated.First the present invention discloses a kind of raising
Sintering waste heat utilizes the method for cluster generated energy, and the method is: utilize cluster to be connected in parallel to output the two above sintering waste heats of set total
Guan Shang, delivery trunk is connected with gas fired-boiler, when wherein any one sintering waste heat utilizes profit group's appearance to stop due to sintering system
During the phenomenon of the frequent off-the-line of sintering exhaust-heat boiler that machine causes, Gas-Fire tube boilers Water utilizes cluster by delivery trunk to sintering waste heat
Conveying steam, this gas fired-boiler uses the Redundant Coke-oven Gas that iron and steel enterprise produces in producing, so, by coke oven more than needed
The burning of coal gas, not only reduces the environmental pollution that coke-stove gas excess emissions is likely to result in, and at any a set of sintering waste heat
When utilizing cluster abnormal phenomena occurs and then produces steam turbine frequent off-the-line shutdown phenomenon, by gas fired-boiler, this set is sintered
The filling of UTILIZATION OF VESIDUAL HEAT IN cluster, reduces the start-stop time of steam turbine, to extend the service life of the equipment such as steam turbine, and can be stable
Line voltage.
The invention also discloses a kind of sintering waste heat that improves matched with said method and utilize the device of cluster generated energy,
This device includes: gas fired-boiler 1；Cluster is utilized by the two above sintering waste heats of set of branch circuit parallel connection to delivery trunk 2；It is arranged on
Gas fired-boiler steam output total valve 3 on delivery trunk 2；The branch road being arranged on every branch road controls valve.
In the present embodiment, this device includes utilizing cluster by three set sintering waste heats on branch circuit parallel connection to delivery trunk 2,
Being respectively sintering waste heat utilizes cluster A7, sintering waste heat to utilize cluster B8 and sintering waste heat to utilize cluster C9, and correspondence, at sintering
UTILIZATION OF VESIDUAL HEAT IN cluster A branch road 10 is provided with branch road and controls valve A4, utilizes at sintering waste heat and is provided with branch road control on cluster B branch road 11
Valve B5 processed, utilizes at sintering waste heat and is provided with branch road control valve C6 on cluster C12 branch road.
In the present embodiment, sintering waste heat utilizes and is provided with 320 m in cluster A72Sintering waste heat generating boiler, sintering
UTILIZATION OF VESIDUAL HEAT IN cluster B8 is provided with 400 m2Sintering waste heat generating boiler, sintering waste heat utilizes and is provided with one in cluster C9
400 m2Sintering waste heat generating boiler.When selecting the installation site of gas fired-boiler 1, owing to sintering waste heat utilizes cluster A7 and burning
Surplus heat utilization cluster B8, sintering waste heat utilize and there are differences between the design standard of cluster C9, therefore by gas fired-boiler 1 near burning
Surplus heat utilization cluster B8 designs.
As 320 m in device2Sintering machine occurs shutting down (accident, fault or maintenance), and its waste heat boiler is stopped transport, sintering waste heat
When utilizing the steam deficiency of cluster A7, regulation increases the branch road control valve A4 utilizing cluster A7 towards sintering waste heat, suitably adjusts
Reduce and utilize the branch road of cluster B8 control valve B5 and utilize the branch road control of cluster C9 towards sintering waste heat towards sintering waste heat less
Valve C6 processed, utilizes cluster A7 to increase for sintering waste heat and supplements quantity of steam, makes sintering waste heat utilize cluster A7 to remain properly functioning
Generating；When in device, sintering waste heat utilizes cluster B8 to occur shutting down (accident, fault or maintenance), and its waste heat boiler is stopped transport, sintering
During the steam deficiency of UTILIZATION OF VESIDUAL HEAT IN cluster B8, regulation increases leads to sintering waste heat and utilizes the branch road of cluster B8 to control valve B5, suitable
The branch road of cluster A7 is utilized to control valve A and utilize the branch road of cluster C towards sintering waste heat when regulation reduces towards sintering waste heat
Control valve C6, utilize cluster B8 to increase for sintering waste heat and supplement quantity of steam, make sintering waste heat utilize cluster B8 to maintain normal fortune
Row generating；In sintering waste heat utilizes cluster C9, sintering machine occurs shutting down (accident, fault or maintenance), and its waste heat boiler is stopped transport,
When sintering waste heat utilizes the steam deficiency of cluster C9, regulation increases the branch road control valve utilizing cluster C9 towards sintering waste heat
C6, suitable regulation reduces leads to the branch road control valve A4 of sintering machine afterheat generating system A7 and utilizes cluster towards sintering waste heat
The branch road of B8 controls valve B5, utilizes cluster C9 to increase for sintering waste heat and supplements quantity of steam, make sintering waste heat utilize cluster C9 to tie up
Hold properly functioning generating, thus reduce steam turbine start-stop time, extend the service life of steam turbine.
It addition, utilize the sintering waste heat of cluster A7 to utilize cluster A branch road 10, lead to sintering by utilizing towards sintering waste heat
The sintering waste heat of UTILIZATION OF VESIDUAL HEAT IN cluster B 8 utilizes cluster B branch road 11 and utilizes the sintering waste heat profit of cluster C9 towards sintering waste heat
With cluster C branch road 12, it is possible to achieve between three clusters, steam is complementary, thus also can avoid certain sintering waste heat utilize cluster because of
Steam pressure is too high and diffuses.
When three sintering machines normally produce, the steam that gas fired-boiler 1 produces can be simultaneously to three sintering machine cogenerations
(i.e. sintering waste heat utilizes cluster A, sintering waste heat to utilize cluster B and sintering waste heat to utilize cluster C) steam turbine dynamic implement is timely
Filling, it is ensured that all steam turbine oeprations at full load in cluster, keeps generating to be in maximization, initial estimate: thus three set sintering
Waste heat increases generated energy 10000 ~ 12000kwh.
In the present embodiment, gas fired-boiler 1 is equipped with soft water, the corresponding source of supply such as distribution and coke-stove gas and corresponding pipeline
Lay, and by the cold low temperature chimney exhaust gas of sintering machine to gas fired-boiler air distribution.In view of the high sulfur content of coke-stove gas, will combustion
Waste gas after gas boiler burning enters at sintering device handpiece in the inlet air stack of desulphurization system, and so, this EGT is at 140-
Between 150 DEG C, enter the sintering flue-gas temperature of desulphurization system after sintering can be promoted, meet the purpose of desulfurization qualified discharge.
In the present embodiment, with separate unit 400m2Calculating as a example by sintering waste heat generating, the coke-stove gas of 45t/h gas fired-boiler disappears
Consumption is 8000m3/ h, coke-stove gas price is 0.6 yuan/m3, ton steam-electric power amount is 210kwh/t, 0.68 yuan/kwh of electricity price, soft water
Price is 10 yuan/t, and soft water consumption is 1.5t/h, and generating online rate is 92%, year operating rate be 98%, reach the standard grade meter according to operation
Calculating, annual direct economic benefit is (only calculate coal gas and soft water puts into and power benefit):
(40t/h × 210kwh/t × 92% × 0.68 yuan/kwh-8000 m3/ h × 0.6 yuan/m3-10 yuan/t × 1.5t/h) ×
24h/ days × 365 day/year × 98%/10000=377.7655(ten thousand yuan/year)
The most only deduct coke-stove gas and the cost (not counting equipment investment and day-to-day maintenance) of soft water consumption, can obtain every year
Direct economic benefit 377.7655 ten thousand yuan, it is often more important that improve resource utilization, saves the energy, reduces coke oven to greatest extent
Coal gas diffusion, stops environmental pollution and the environmental benefit brought and social synthesis's Benefit.
Certainly, described above not limitation of the present invention, the present invention is also not limited to the example above, the art common
Change that technical staff is made in the essential scope of the present invention, retrofit, add or replace, fall within the protection model of the present invention
Enclose.
Claims (5)
1. one kind is improved the method that sintering waste heat utilizes cluster generated energy, it is characterised in that: described method is: burn above for two sets
Surplus heat utilization cluster is connected in parallel on delivery trunk, and described delivery trunk is connected with gas fired-boiler, when the most any one of
Sintering waste heat utilize cluster occur due to sintering system shut down the phenomenon of sintering exhaust-heat boiler frequent off-the-line caused time, described combustion
Gastube boiler utilizes cluster to carry steam by described delivery trunk to described sintering waste heat.
The most in accordance with the method for claim 1, it is characterised in that: Redundant Coke-oven Gas is delivered in described gas fired-boiler.
3. one kind utilizes the device of cluster generated energy method for raising sintering waste heat described in claim 1, it is characterised in that: institute
State device to include: described gas fired-boiler；Utilized by two the above sintering waste heat of set of branch circuit parallel connection to described delivery trunk
Cluster；The gas fired-boiler steam output total valve being arranged on described delivery trunk；It is arranged on the branch road on every described branch road
Control valve.
4. according to the device described in claim 3, it is characterised in that: described device includes by branch circuit parallel connection to described output total
Three set sintering waste heats on pipe utilize cluster, and respectively sintering waste heat utilizes cluster A, sintering waste heat to utilize cluster B and sintering remaining
Heat utilization cluster C, corresponding, utilize at described sintering waste heat and be provided with branch road control valve A on cluster A branch road, at described sintering
UTILIZATION OF VESIDUAL HEAT IN cluster B branch road is provided with branch road and controls valve B, utilizes at described sintering waste heat and is provided with branch road control on cluster C branch road
Valve C processed.
5. according to the device described in claim 4, it is characterised in that: described sintering waste heat utilizes and is provided with a 320m in cluster A2
Sintering waste heat generating boiler, described sintering waste heat utilizes and is provided with a 400m in cluster B2Sintering waste heat generating boiler, institute
State sintering waste heat to utilize cluster C is provided with a 400m2Sintering waste heat generating boiler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610430813.3A CN106091705A (en) | 2016-06-15 | 2016-06-15 | A kind of improve the method and apparatus that sintering waste heat utilizes cluster generated energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610430813.3A CN106091705A (en) | 2016-06-15 | 2016-06-15 | A kind of improve the method and apparatus that sintering waste heat utilizes cluster generated energy |
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| Publication Number | Publication Date |
|---|---|
| CN106091705A true CN106091705A (en) | 2016-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610430813.3A Pending CN106091705A (en) | 2016-06-15 | 2016-06-15 | A kind of improve the method and apparatus that sintering waste heat utilizes cluster generated energy |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113146817A (en) * | 2021-03-04 | 2021-07-23 | 贵州迪森元能源科技有限公司 | Automatic control system for residual gas utilization |
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|---|---|---|---|---|
| CN101349511A (en) * | 2008-09-04 | 2009-01-21 | 北京博奇电力科技有限公司 | Flue gas waste heat recovery method and apparatus for ferroalloy cluster electric stove |
| EP2772618A1 (en) * | 2011-10-28 | 2014-09-03 | Kawasaki Jukogyo Kabushiki Kaisha | Power generating facility |
| CN204421655U (en) * | 2014-12-30 | 2015-06-24 | 汉中华富新能源有限公司 | A kind of sintering exhaust-heat boiler and gas boiler combined power generation device |
| CN105299652A (en) * | 2014-06-30 | 2016-02-03 | 北京科技大学 | Diffused gas utilizing system and method |
-
2016
- 2016-06-15 CN CN201610430813.3A patent/CN106091705A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101349511A (en) * | 2008-09-04 | 2009-01-21 | 北京博奇电力科技有限公司 | Flue gas waste heat recovery method and apparatus for ferroalloy cluster electric stove |
| EP2772618A1 (en) * | 2011-10-28 | 2014-09-03 | Kawasaki Jukogyo Kabushiki Kaisha | Power generating facility |
| CN105299652A (en) * | 2014-06-30 | 2016-02-03 | 北京科技大学 | Diffused gas utilizing system and method |
| CN204421655U (en) * | 2014-12-30 | 2015-06-24 | 汉中华富新能源有限公司 | A kind of sintering exhaust-heat boiler and gas boiler combined power generation device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113146817A (en) * | 2021-03-04 | 2021-07-23 | 贵州迪森元能源科技有限公司 | Automatic control system for residual gas utilization |
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Application publication date: 20161109 |