CN203177670U - Waste heat utilization device of tail low-temperature smoke of sinter cooler - Google Patents
Waste heat utilization device of tail low-temperature smoke of sinter cooler Download PDFInfo
- Publication number
- CN203177670U CN203177670U CN2012206660980U CN201220666098U CN203177670U CN 203177670 U CN203177670 U CN 203177670U CN 2012206660980 U CN2012206660980 U CN 2012206660980U CN 201220666098 U CN201220666098 U CN 201220666098U CN 203177670 U CN203177670 U CN 203177670U
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- Prior art keywords
- cold
- chimney
- zone
- sinter cooler
- waste heat
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- Expired - Fee Related
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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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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model provides a waste heat utilization device of tail low-temperature smoke of a sinter cooler. The waste heat utilization device of the tail low-temperature smoke of the sinter cooler comprises the sinter cooler, a third cold zone chimney and a fourth cold zone chimney which are located at the tail of the sinter cooler are connected through a smoke recovery pipe, and the smoke recovery pipe is connected with an air inlet of a waste heat boiler through a smoke inlet header pipe. A first control valve is installed on the smoke recovery pipe between the smoke inlet header pipe and the third cold zone chimney, a second control valve is installed on the smoke recovery pipe between the smoke inlet header pipe and the fourth cold zone chimney, and control valves are installed on the cold zone chimneys. An air outlet of the waste heat boiler is connected with a bleeder, a draught fan and a blow-off valve are installed on the bleeder, a circulating pipe is arranged on the bleeder between the draught fan and the blow-off valve, the circulating pipe is connected with a bellows of the sinter cooler, and a circulating valve is installed on the circulating pipe. The waste heat utilization device can recycle heat of waste gas exhausted from the third cold zone and the fourth cold zone of the sinter cooler, and not only saves energy, but also reduces the effect on the environment caused by smoke emission.
Description
Technical field
The utility model relates to a kind of sinter cooler, specifically a kind of sinter cooler afterbody low-temperature flue gas residual heat using device.
Background technology
Existing sinter cooler central cooler, belt-cooling machine are divided into cooled region four cooling zones usually in the process of air blast cooling sintering deposit.Wherein a cold-zone temperature is about 400 ℃, about 300 ℃ of two cold-zone temperature, about 200 ℃ of three cold-zone temperature, about 120 ℃ of four cold-zone temperature, at present in the sintering waste heat recovery project, mainly be that a cold-zone of sinter cooler and the higher hot waste gas of temperature of two cold-zones are recycled, and three cold-zones and four cold-zones are because temperature is lower, still there is not equipment effectively to reclaim this part EGT, this part heat is wasted, the high-temperature flue gas of boiler emission directly is disposed in the atmosphere by chimney simultaneously, also can aggravate greenhouse effects, and environment is impacted.
The utility model content
The purpose of this utility model provides a kind of sinter cooler afterbody low-temperature flue gas residual heat using device, it can be recycled the heat in sinter cooler three cold-zones and the four cold-zone discharging waste gas, namely save the energy, reduced the influence of fume emission to environment again.
The utility model for achieving the above object, be achieved through the following technical solutions: comprise sinter cooler, connect by the flue gas recovery tube between the 3rd cold-zone chimney of sinter cooler afterbody and the 4th cold-zone chimney, the flue gas recovery tube is connected with the air inlet of waste heat boiler by advancing the cigarette house steward, advance first control valve is installed on the flue gas recovery tube between cigarette house steward and the 3rd cold-zone chimney, advance second control valve is installed on the flue gas recovery tube between cigarette house steward and the 4th cold-zone chimney, the 3rd control valve is installed on the 3rd cold-zone chimney, the 4th control valve is installed on the 4th cold-zone chimney, the gas outlet of waste heat boiler is connected with exhaust stack, air-introduced machine is installed on the exhaust stack and is diffused valve, air-introduced machine and diffuse on the exhaust stack between the valve circulation pipe is set, circulation pipe is connected with the bellows of sinter cooler, and circulating valve is installed on the circulation pipe.The external supplying pipe tube wall periphery of waste heat boiler arranges thermal insulation casing, form incubation cavity between thermal insulation casing inwall and the external supplying pipe outer wall, thermal insulation casing one end arranges inlet tube, the thermal insulation casing other end arranges outlet, inlet tube is connected with the 4th cold-zone chimney, the preservation and controlling valve is installed on the inlet tube, mounting temperature sensor in the 4th cold-zone chimney, temperature sensor is connected with second control valve with the preservation and controlling valve by lead respectively.Described waste heat boiler is hot-water boiler.
Advantage of the present utility model is: can recycle the heat in sinter cooler three cold-zones and the four cold-zone discharging waste gas, namely saved the energy, reduced the influence of fume emission to environment again, supplied in the process thermal loss less outward, heating efficiency is more high.
Description of drawings
Fig. 1 is the utility model structural representation.
The specific embodiment
Sinter cooler afterbody low-temperature flue gas residual heat using device described in the utility model comprises sinter cooler 1, connect by flue gas recovery tube 3 between the 3rd cold-zone chimney 2 of sinter cooler 1 afterbody and the 4th cold-zone chimney 5, flue gas recovery tube 3 is connected with the air inlet of waste heat boiler 4 by advancing cigarette house steward 6, advance first control valve 7 is installed on the flue gas recovery tube 3 between cigarette house steward 6 and the 3rd cold-zone chimney 2, advance second control valve 15 is installed on the flue gas recovery tube 3 between cigarette house steward 6 and the 4th cold-zone chimney 5, the 3rd control valve 8 is installed on the 3rd cold-zone chimney 2, the 4th control valve 9 is installed on the 4th cold-zone chimney 5, the gas outlet of waste heat boiler 4 is connected with exhaust stack 10, air-introduced machine 11 is installed on the exhaust stack 10 and is diffused valve 12, air-introduced machine 11 and diffuse on the exhaust stack 10 between the valve 12 circulation pipe 13 is set, circulation pipe 13 is connected with the bellows of sinter cooler 1, and circulating valve 14 is installed on the circulation pipe 13.In the time of need reclaiming the heat in sinter cooler three cold-zones and the four cold-zone discharging waste gas, close the 3rd control valve 8 and the 4th control valve 9, open first control valve 7 and second control valve 15, after being mixed, three cold-zones and four cold-zone exhaust gas discharged enter waste heat boiler 4, three cold-zones and the mixed temperature of four cold-zone exhaust gas discharged are about 170 ℃, after waste gas is finished heat exchange in the waste heat boiler 4 again, diffuse or recycle by the bellows that circulation pipe 13 is circulated to sinter cooler 1 through exhaust stack 10, the heat that waste heat boiler 4 absorbs in the waste gas prepares hot water, steam or other heat-conducting medium supply outward.The utility model can be recycled the heat in sinter cooler three cold-zones and the four cold-zone discharging waste gas, has namely saved the energy, has reduced the influence of fume emission to environment again.
The utility model is outer for the thermal loss in the process in order to reduce, can thermal insulation casing 17 be set in the external supplying pipe 16 tube wall peripheries of waste heat boiler 4, form incubation cavity 18 between thermal insulation casing 17 inwalls and external supplying pipe 16 outer walls, thermal insulation casing 17 1 ends arrange inlet tube 19, thermal insulation casing 17 other ends arrange outlet 20, inlet tube 19 is connected with the 4th cold-zone chimney 5, preservation and controlling valve 21 is installed on the inlet tube 19, mounting temperature sensor 22 in the 4th cold-zone chimney 5, temperature sensor 22 is connected with second control valve 15 with preservation and controlling valve 21 by lead respectively.The 4th cold-zone exhaust gas discharged temperature fluctuation is bigger, when the 4th cold-zone exhaust gas discharged temperature can satisfy the demand of heat recovery, preservation and controlling valve 21 and second control valve 15 can be opened simultaneously, part waste gas is used for heat recovery, and another part waste gas enters 17 pairs of external supplying pipes 16 of thermal insulation casing and is incubated; When the 4th cold-zone exhaust gas discharged temperature can't satisfy the demand of heat recovery, second control valve 15 can be closed, this moment, the 4th cold-zone exhaust gas discharged only was used for external supplying pipe 16 is incubated.The 4th cold-zone exhaust gas discharged temperature is detected by temperature sensor 22.
Waste heat boiler described in the utility model preferably adopts hot-water boiler, because it is lower to prepare the required EGT of hot water, heating efficiency is higher, being more suitable for sinter cooler three cold-zones and four cold-zones uses, certain waste heat boiler described in the utility model can also adopt other polytype waste heat boilers such as steam boiler, boiler of organic heat carrier, but the EGT that these boilers need is higher, and the heating efficiency during actual the use is lower.
Claims (3)
1. sinter cooler afterbody low-temperature flue gas residual heat using device, comprise sinter cooler (1), it is characterized in that: connect by flue gas recovery tube (3) between the 3rd cold-zone chimney (2) of sinter cooler (1) afterbody and the 4th cold-zone chimney (5), flue gas recovery tube (3) is connected with the air inlet of waste heat boiler (4) by advancing cigarette house steward (6), the flue gas recovery tube (3) that advances between cigarette house steward (6) and the 3rd cold-zone chimney (2) is gone up installation first control valve (7), the flue gas recovery tube (3) that advances between cigarette house steward (6) and the 4th cold-zone chimney (5) is gone up installation second control valve (15), the 3rd cold-zone chimney (2) is gone up the 3rd control valve (8) is installed, the 4th cold-zone chimney (5) is gone up the 4th control valve (9) is installed, the gas outlet of waste heat boiler (4) is connected with exhaust stack (10), exhaust stack (10) is gone up and air-introduced machine (11) is installed and is diffused valve (12), air-introduced machine (11) and diffuse on the exhaust stack (10) between the valve (12) circulation pipe (13) is set, circulation pipe (13) is connected with the bellows of sinter cooler (1), and circulation pipe (13) is gone up circulating valve (14) is installed.
2. sinter cooler afterbody low-temperature flue gas residual heat using device according to claim 1, it is characterized in that: external supplying pipe (16) the tube wall periphery of waste heat boiler (4) arranges thermal insulation casing (17), form incubation cavity (18) between thermal insulation casing (17) inwall and external supplying pipe (16) outer wall, thermal insulation casing (17) one ends arrange inlet tube (19), thermal insulation casing (17) other end arranges outlet (20), inlet tube (19) is connected with the 4th cold-zone chimney (5), inlet tube (19) is gone up preservation and controlling valve (21) is installed, the 4th interior mounting temperature sensor of cold-zone chimney (5) (22), temperature sensor (22) are connected with second control valve (15) with preservation and controlling valve (21) by lead respectively.
3. sinter cooler afterbody low-temperature flue gas residual heat using device according to claim 1 and 2, it is characterized in that: described waste heat boiler is hot-water boiler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206660980U CN203177670U (en) | 2012-12-06 | 2012-12-06 | Waste heat utilization device of tail low-temperature smoke of sinter cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206660980U CN203177670U (en) | 2012-12-06 | 2012-12-06 | Waste heat utilization device of tail low-temperature smoke of sinter cooler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203177670U true CN203177670U (en) | 2013-09-04 |
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ID=49074355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206660980U Expired - Fee Related CN203177670U (en) | 2012-12-06 | 2012-12-06 | Waste heat utilization device of tail low-temperature smoke of sinter cooler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203177670U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266500A (en) * | 2014-09-25 | 2015-01-07 | 河北联合大学 | Cooler heat source parameter forecasting and regulation method based on heat condition in sintering process |
| CN105928186A (en) * | 2016-05-03 | 2016-09-07 | 长沙恒宇节能环保科技有限公司 | Efficient waste heat boiler |
-
2012
- 2012-12-06 CN CN2012206660980U patent/CN203177670U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266500A (en) * | 2014-09-25 | 2015-01-07 | 河北联合大学 | Cooler heat source parameter forecasting and regulation method based on heat condition in sintering process |
| CN105928186A (en) * | 2016-05-03 | 2016-09-07 | 长沙恒宇节能环保科技有限公司 | Efficient waste heat boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20171206 |