CN101979950A - Flue gas waste heat recovery optimizing device for annular cooler - Google Patents
Flue gas waste heat recovery optimizing device for annular cooler Download PDFInfo
- Publication number
- CN101979950A CN101979950A CN2010105606096A CN201010560609A CN101979950A CN 101979950 A CN101979950 A CN 101979950A CN 2010105606096 A CN2010105606096 A CN 2010105606096A CN 201010560609 A CN201010560609 A CN 201010560609A CN 101979950 A CN101979950 A CN 101979950A
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- China
- Prior art keywords
- flue gas
- smoke deflector
- waste heat
- heat recovery
- gas waste
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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 discloses a flue gas waste heat recovery optimizing device for an annular cooler, which comprises an annular cooler trolley, an annular cooling cover which is arranged on the upper part of the front end of the trolley and is used for collecting flue gas and a gas pumping opening which is connected with a flue and is formed on the upper part of the annular cooling cover, wherein a flue gas deflector is arranged in the annular cooling cover; the edge of the flue gas deflector is fixedly welded with the inner side of the annular cooling cover; and a diversion channel with set width is formed on the middle part of the flue gas deflector along the length direction of the deflector. The flue gas waste heat recovery optimizing device is characterized in that: the flue gas deflector and an ash blocking plate are arranged in the annular cooling cover; the flow rate of the flue gas can be obtained through the opening position of the gas pumping opening and the blast volume and air leakage coefficients of a blast blower, so that the diversion channel of the flue gas deflector is determined, the hot flue gas of the annular cooler can be absorbed to the maximum extent, the discharge of part of hot flue gas is prevented, and the recovery rate of flue gas waste heat is improved.
Description
Technical field
The present invention relates to field of iron and steel smelting, device is optimized in especially a kind of central cooler flue gas waste heat recovery.
Background technology
In the smelting iron and steel industry, at sinter fume waste heat (comprising sintering machine waste gas residual heat and central cooler fume afterheat), the overwhelming majority is diffused by chimney at present, does not obtain reasonable use, has wasted a large amount of thermals source.In recent years, how to utilize this part waste heat more and more to obtain paying attention to, the sintering waste heat of existing part steel mill begins to recycle generating, and wherein the flue gas of central cooler part leading portion has higher recycling and is worth because its temperature higher (can reach more than 350 ℃) and fly ash content are lower.
Because central cooler is longer, and from sintering deposit blanking port (initiating terminal) to discharging opening (end), the sintering deposit temperature is reduced to about 120 ℃ from about 800 ℃, flue-gas temperature correspondingly reduces (being reduced to about 50 ℃ from about 500 ℃).In limited central cooler flue gas waste heat recovery utilizes, be on the cold cover of original ring of central cooler front end, to open one or several bleeding points basically at present, flue gas introduced waste heat boiler produce steam or generating.But, because circular cooler trolley moves, and the top cold cover of flue gas ring is fixed, therefore, between cold cover of ring and circular cooler trolley, can produce the slit inevitably, this just causes also having sucked a large amount of cool exterior air near each bleeding point when sucking hot flue gas, and the hot flue gas between the bleeding point then emits outward along the slit, causes the heat of this part flue gas to lose in vain.
Summary of the invention
Problem at the prior art existence, the purpose of this invention is to provide a kind of central cooler flue gas waste heat recovery and optimize device, this device improves the flue-gas temperature of bleeding point effectively by the smoke deflector of the cold cover internal placement of ring, increases substantially the rate of recovery of central cooler fume afterheat.
For achieving the above object, device is optimized in central cooler flue gas waste heat recovery of the present invention, comprise circular cooler trolley, its upper front end is provided with the cold cover of ring that is used to collect flue gas, this top of encircling cold cover is provided with the bleeding point that is connected with flue, wherein, encircle in the cold cover and be provided with smoke deflector, the middle part of smoke deflector is provided with the flow-guiding channel of setting width along its length direction.
Further, the width of described flow-guiding channel is calculated by formula, and formula is: ψ
0(x)=f (d
x, w
x, D, h), wherein, d
xBe the channel width at x place, w
xBe the flue gas mass flow at x place, D is the circular cooler trolley width, and h is the height of smoke deflector apart from the chassis upper edge, ψ
0(x) for be the x axle with the central cooler center line, velocity of flue gas is zero envelope on the cross section at x place.
Further, described smoke deflector is horizontally disposed with, and the inboard welding of its edge and the cold cover of described ring is fixing.
Further, the height of the described circular cooler trolley of described smoke deflector distance is at least 500 millimeters.
Further, described smoke deflector bottom is provided with supporting traverse, this supporting traverse round steel pipe or square steel tube, and it directly is welded on the sidewall of the cold cover of described ring.
Further, the top of described smoke deflector is provided with dust block board, the inwall welding of the top of this dust block board and the cold cover of described ring is fixing, and the bottom of dust block board and the welding of the top of described smoke deflector are fixing, and the angle between dust block board and the smoke deflector is 30 degree～60 degree.
Characteristics of the present invention are by arrange smoke deflector and dust block board in the cold cover of ring, air quantity and air leakage coefficient that aperture position and air blast by bleeding point blasts, can draw flue gas flow, and then the flow-guiding channel of definite smoke deflector, can absorb the hot flue gas of central cooler to greatest extent, avoid the discharging of portion of hot flue gas, improved the rate of recovery of fume afterheat.
Description of drawings
Fig. 1 is an apparatus structure schematic diagram of the present invention;
Fig. 2 be among Fig. 1 A-A to schematic cross-section;
Fig. 3 is the structural representation of smoke deflector;
Fig. 4 is the flue gas mass flow distribution figure before transforming;
Fig. 5 is the flue gas mass flow distribution figure behind employing the present invention.
The specific embodiment
As shown in Figure 1 to Figure 3, device is optimized in central cooler flue gas waste heat recovery of the present invention, comprises circular cooler trolley 1, the cold cover 2 of ring, smoke deflector 3, dust block board 4, supporting traverse 5, bleeding point 6.
The upper front end of circular cooler trolley 1 is provided with the cold cover 2 of ring that is used to collect flue gas, the top of encircling cold cover 2 is provided with the bleeding point 6 that is connected with flue, encircle in the cold cover 2 and be horizontally disposed with smoke deflector 3, the edge of smoke deflector 3 is fixing with the inboard welding of the cold cover 2 of ring, and the middle part of smoke deflector 3 is provided with the flow-guiding channel 7 of setting width along its length direction.
After sintering deposit falls into circular cooler trolley 1, the cold air that blasts from the bottom of circular cooler trolley 1 cools off sintering deposit, produce the flue gas of 500～50 ℃ of temperature, wherein the flue gas more than 350 ℃ enters the cold cover 2 of ring of central cooler upper front end, enter flue by the bleeding point 6 that encircles cold cover 2 tops, can be used for producing hot water or steam, to carry out the secondary utilization.
ψ
0(x)＝f(d
x，w
x，D，h) (1)
(1) in the formula, d
xBe the channel width at x place, w
xBe the flue gas mass flow at x place, D is the circular cooler trolley width, and h is the height of smoke deflector apart from the chassis upper edge.
In (1) formula, w
xWith D be known quantity, h is a set-point, ψ
0(x) can carry out Inversion Calculation to (1) formula by calculating, can obtain the channel width d at x place
x
The top of smoke deflector 3 is provided with dust block board 4, and the top of dust block board 4 is fixing with the inwall welding of the cold cover 2 of ring, and the top welding of the bottom of dust block board 4 and smoke deflector 3 is fixing, and the angle that is provided with between dust block board 4 and the smoke deflector 3 is 30 degree～60 degree.Fly ash granule in the flue gas is fallen dust block board 4 landings of will postponing behind smoke deflector 3 tops like this, thereby guarantees that the fly ash granule in the flue gas is not deposited on the smoke deflector 3.
The bottom of smoke deflector 3 is provided with supporting traverse 5, and supporting traverse 5 is used to support smoke deflector 3 and dust block board 4, and supporting traverse 5 is round steel pipe or square steel tube, and its two ends directly are weldingly fixed on cold cover 2 outer walls of ring, and can be used as the ventilation beam.
Device is optimized in central cooler flue gas waste heat recovery of the present invention, by in the cold cover of ring, arranging smoke deflector and dust block board, the air quantity and the air leakage coefficient that blast according to the aperture position and the air blast of bleeding point, can draw flue gas flow, and then the width of the flow-guiding channel of definite smoke deflector, can absorb the hot flue gas of central cooler to greatest extent, avoid the discharging of portion of hot flue gas, improve the rate of recovery of fume afterheat.The present invention is by technological transformation, reduced central cooler the flying dust amount, prevented environmental pollution, improved heat secondary utilization rate.
Central cooler flue gas waste heat recovery TRT with certain steel mill is an example below, and effect of the present invention is described:
Before the transformation, the flue gas mass flow distribution before transforming is seen Fig. 4, and a day generated energy has only 35000kWh; Improved flue gas mass flow distribution is seen Fig. 5, and generated energy reaches 55000kWh, and generated energy has improved more than 50%, and effect is remarkable.
Claims (6)
1. device is optimized in the central cooler flue gas waste heat recovery, it is characterized in that, this device comprises circular cooler trolley, its upper front end is provided with the cold cover of ring that is used to collect flue gas, this top of encircling cold cover is provided with the bleeding point that is connected with flue, wherein, encircles in the cold cover and is provided with smoke deflector, the edge of this smoke deflector is fixing with the inboard welding of the cold cover of ring, and the middle part of smoke deflector is provided with the flow-guiding channel of setting width along its length direction.
2. device is optimized in central cooler flue gas waste heat recovery as claimed in claim 1, it is characterized in that the width of described flow-guiding channel is calculated by formula, and formula is: ψ
0(x)=f (d
x, w
x, D, h), wherein, d
xBe the channel width at x place, w
xBe the flue gas mass flow at x place, D is the circular cooler trolley width, and h is the height of smoke deflector apart from the chassis upper edge, ψ
0(x) for be the x axle with the central cooler center line, velocity of flue gas is zero envelope on the cross section at x place.
3. device is optimized in central cooler flue gas waste heat recovery as claimed in claim 1, it is characterized in that described smoke deflector is horizontally disposed with, and the inboard welding of its edge and the cold cover of described ring is fixing.
4. device is optimized in central cooler flue gas waste heat recovery as claimed in claim 1, it is characterized in that, the height of the described circular cooler trolley of described smoke deflector distance is at least 500 millimeters.
5. device is optimized in central cooler flue gas waste heat recovery as claimed in claim 3, it is characterized in that, described smoke deflector bottom is provided with supporting traverse, this supporting traverse round steel pipe or square steel tube, and it directly is welded on the sidewall of the cold cover of described ring.
6. device is optimized in central cooler flue gas waste heat recovery as claimed in claim 4, it is characterized in that, the top of described smoke deflector is provided with dust block board, the inwall welding of the top of this dust block board and the cold cover of described ring is fixing, the bottom of dust block board and the welding of the top of described smoke deflector are fixing, and the angle between dust block board and the smoke deflector is 30 degree～60 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105606096A CN101979950A (en) | 2010-11-23 | 2010-11-23 | Flue gas waste heat recovery optimizing device for annular cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105606096A CN101979950A (en) | 2010-11-23 | 2010-11-23 | Flue gas waste heat recovery optimizing device for annular cooler |
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| Publication Number | Publication Date |
|---|---|
| CN101979950A true CN101979950A (en) | 2011-02-23 |
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ID=43600468
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|---|---|---|---|
| CN2010105606096A Pending CN101979950A (en) | 2010-11-23 | 2010-11-23 | Flue gas waste heat recovery optimizing device for annular cooler |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103033064A (en) * | 2012-12-28 | 2013-04-10 | 北京世纪源博科技股份有限公司 | Device for recovering waste heat of sintering flue gas |
| CN103033063A (en) * | 2012-12-28 | 2013-04-10 | 北京世纪源博科技股份有限公司 | Method for recovering waste heat of sintering flue gas |
| CN112361317A (en) * | 2020-11-02 | 2021-02-12 | 上海明华电力科技有限公司 | High-temperature fly ash waste heat recovery device and method for wastewater concentration process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5456631A (en) * | 1994-08-12 | 1995-10-10 | Eisenmann Corporation | Hood style exhaust system construction |
| CN101059312A (en) * | 2007-04-05 | 2007-10-24 | 中冶长天国际工程有限责任公司 | Ring cold machine residual heat recovery and sealing device |
| JP2008232519A (en) * | 2007-03-20 | 2008-10-02 | Mitsubishi-Hitachi Metals Machinery Inc | Sintered ore cooling device |
| CN101368793A (en) * | 2007-08-17 | 2009-02-18 | 北京得能创新科技有限公司 | Sintering device, sintering cooler and its flexible sealing device |
| CN101368794A (en) * | 2007-08-17 | 2009-02-18 | 北京得能创新科技有限公司 | Sintering device, sintering cooler and its suspension sealing device |
-
2010
- 2010-11-23 CN CN2010105606096A patent/CN101979950A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5456631A (en) * | 1994-08-12 | 1995-10-10 | Eisenmann Corporation | Hood style exhaust system construction |
| JP2008232519A (en) * | 2007-03-20 | 2008-10-02 | Mitsubishi-Hitachi Metals Machinery Inc | Sintered ore cooling device |
| CN101059312A (en) * | 2007-04-05 | 2007-10-24 | 中冶长天国际工程有限责任公司 | Ring cold machine residual heat recovery and sealing device |
| CN101368793A (en) * | 2007-08-17 | 2009-02-18 | 北京得能创新科技有限公司 | Sintering device, sintering cooler and its flexible sealing device |
| CN101368794A (en) * | 2007-08-17 | 2009-02-18 | 北京得能创新科技有限公司 | Sintering device, sintering cooler and its suspension sealing device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103033064A (en) * | 2012-12-28 | 2013-04-10 | 北京世纪源博科技股份有限公司 | Device for recovering waste heat of sintering flue gas |
| CN103033063A (en) * | 2012-12-28 | 2013-04-10 | 北京世纪源博科技股份有限公司 | Method for recovering waste heat of sintering flue gas |
| CN103033063B (en) * | 2012-12-28 | 2016-05-18 | 北京世纪源博科技股份有限公司 | Sinter fume exhaust heat recovering method |
| CN112361317A (en) * | 2020-11-02 | 2021-02-12 | 上海明华电力科技有限公司 | High-temperature fly ash waste heat recovery device and method for wastewater concentration process |
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| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 100036, Beijing, Fengtai District village, 288 Huaxin Building Complex floor Applicant after: Beijing Century Benefits Co., Ltd. Address before: 100036, Beijing, Fengtai District village, 288 Huaxin Building Complex floor Applicant before: Beijing Century Yuanbo R&D Co., Ltd. |
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| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: BEIJING CENTURY YUANBO R+D CO., LTD. TO: BEIJING CENTURY BENEFITS CO., LTD. |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110223 |