CN201935585U - Sintering system for back burning sintered ores in cooler high-temperature section using smoke from big gas duct of sintering machine - Google Patents
Sintering system for back burning sintered ores in cooler high-temperature section using smoke from big gas duct of sintering machine Download PDFInfo
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- CN201935585U CN201935585U CN2010206776102U CN201020677610U CN201935585U CN 201935585 U CN201935585 U CN 201935585U CN 2010206776102 U CN2010206776102 U CN 2010206776102U CN 201020677610 U CN201020677610 U CN 201020677610U CN 201935585 U CN201935585 U CN 201935585U
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- sintering
- sintering machine
- cooler
- flue
- temperature section
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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
Abstract
The utility model discloses a sintering system for back burning sintered ores in a cooler high-temperature section using smoke from a big gas duct of a sintering machine, which comprises a sintering machine and a cooler. A sintering machine dust catcher and a sintering machine chimney are sequentially connected to bellows at the bottom of the sintering machine through the big gas duct. A bypass gas duct is arranged in the middle of the big gas duct located between the sintering machine dust catcher and the sintering machine chimney or arranged at the bellows at the bottom of the sintering machine where the content of carbon monoxide (CO) is high, a bypass fan is disposed in the bypass gas duct, and the other end is connected to at least one bellows at the bottom of the cooler high-temperature section. By leading the smoke from the big gas duct of the sintering machine into the sintering ore range of the cooler high-temperature section for back burning, complete combustion of the residual carbon monoxide from the sintering machine can be realized and meanwhile the efficiency of an exhaust-heat boiler for recycling residual heat of a sintering process is enhanced.
Description
Technical field
The utility model relates to a kind of sintering system, particularly relates to a kind ofly with the anti-sintering system that burns cooler high temperature section sintering deposit of sintering machine large flue flue gas, belongs to the improvement of the sintering technology in the energy, environmental protection field.
Background technology
The metallurgy industry sintering circuit comprises sintering and two processes of cooling, sintering is the iron ore concentrate that poor iron ore is obtained through ore dressing, iron content powder, flux and the fuel etc. that reclaim in fine ore that high-grad iron ore deposit obtains in fragmentation, screening process and the production, ratio cooperates on request, add water and make granular sinter mixture, be tiled on the sintering machine, become piece through the igniting down draft sintering; Cooling is high temperature sintering ore deposit (600～1000 ℃) to be cooled to normal temperature or near normal temperature for protection blast furnace furnace roof equipment and Blast Furnace Ore groove, the working condition of improving blast furnace and sintering plant, protection transporting equipment.The capital equipment that these two processes comprise has sintering machine and cooler, and wherein, cooler can be divided into straight line cooler and circular cooler again.
At present, the heat loss due to unburned gas of domestic metallurgy industry sintering circuit sintering machine accounts for about the 10-20% of sintering circuit energy expenditure, this a part of heat loss due to unburned gas mainly is the imperfect combustion generation of the fuel CO owing to sintering, and CO fails to continue, completing combustion causes.A large amount of CO is mingled in the sintered discharge gas, through large flue, enters atmosphere from chimney, causes the CO discharging to exceed standard environmental pollution problems.
The utility model content
In order to overcome above-mentioned the deficiencies in the prior art, it is a kind of with the anti-sintering system that burns cooler high temperature section sintering deposit of sintering machine large flue flue gas that the utility model provides, and with the anti-cooler high temperature section sintering deposit that burns of sintering machine large flue flue gas, makes CO completing combustion.
The technical solution of the utility model is as follows:
A kind of with the anti-sintering system that burns cooler high temperature section sintering deposit of sintering machine large flue flue gas, comprise sintering machine, cooler, sintering machine bottom bellows are connected with sintering machine deduster and sintering machine chimney in turn by large flue, characteristics are, be provided with the bypass flue in the middle of the large flue between described sintering machine deduster and the described sintering machine chimney, or the bypass flue is set from the motor spindle bellows that partially sinter of high CO content, be provided with the bypass blower fan in the described bypass flue, the other end of described bypass flue links to each other with at least one described cooler high temperature section bottom bellows.
Flue gas in sintering machine large flue part (or all) is caused the cooler high temperature section, or partly cause the cooler high temperature section from the flue gas that partially sinters the motor spindle bellows of high CO content, upwards wash away the high temperature sintering ore deposit from the air of cooler pallet bottom bellows output instead of part cooling usefulness.Because cooler high temperature section sintering deposit temperature is substantially at 600～1000 ℃, and contain O about 15% in the sintered discharge gas
2And the burning-point of CO is 650 ℃, therefore, CO in the sintering device flue gas and other a small amount of combustibles such as coke, coal dust fine grained be burning rapidly by cooler high temperature sintering ore bed the time, emits heat, thereby consumes the CO in the flue gas, improve the flue-gas temperature of passing through simultaneously, former low-temperature flue gas is through the high temperature sintering ore deposit, carries CO burning institute liberated heat simultaneously and enters waste heat boiler and carry out waste heat recovery, and last desulfurizing and purifying enters atmosphere.
Technique effect of the present utility model:
(1) owing to be provided with the bypass flue in the middle of the large flue between sintering machine deduster and sintering machine chimney, the flue gas in the sintering machine large flue is caused the cooler high temperature section, the residual CO of sintering machine is fully burned, reach effect in energy saving and environmental protection.
(2) owing to the motor spindle bellows that partially sinter from high CO content are provided with the bypass flue, saved the operation of sintering machine deduster and sintering machine chimney, also arrived the residual CO of sintering machine simultaneously and fully burn effect in energy saving and environmental protection.
(3) because former low-temperature flue gas, carries CO burning institute liberated heat simultaneously through the high temperature sintering ore deposit enters waste heat boiler and carry out waste heat recovery, improve the effect that waste heat boiler reclaims the efficient of sintering circuit waste heat.
Description of drawings
Fig. 1 is the anti-structural representation of burning the sintering system of cooler high temperature section sintering deposit of the utility model sintering machine large flue flue gas.
Fig. 2 is anti-sintering system second embodiment that burns cooler high temperature section sintering deposit of the utility model sintering machine large flue flue gas.
1. material distributing machine, 2. igniters, 3. sintering machines bottom bellows 4. large flues 5. sintering machine dedusters, 6. sintering machine chimneys, 7. bypass flues, 8. bypass blower fans, 9. cooler high temperature section bottom bellows 10. dump skips 11. sealing gas skirts 12. cooler dedusters 13. waste heat boilers, 14. desulfurizers, 15. cooler chimneys among the figure
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments, but do not limit protection domain of the present utility model.
Please consult Fig. 1 earlier, Fig. 1 is the anti-structural representation of burning the sintering system of cooler high temperature section sintering deposit of the utility model sintering machine large flue flue gas, also is first embodiment of the present utility model.As shown in the figure, a kind of with the anti-sintering system that burns cooler high temperature section sintering deposit of sintering machine large flue flue gas, comprise sintering machine, cooler, sintering machine bottom bellows 3 are connected with sintering machine deduster 5 and sintering machine chimney 6 in turn by large flue 4, be provided with bypass flue 7 in the middle of the large flue 4 between sintering machine deduster 5 and the sintering machine chimney 6, be provided with bypass blower fan 8 in the bypass flue 7, with bypass blower fan 8 part (or all) sintered discharge gas is caused bellows 9 places, cooler high temperature section bottom, bypass flue 7 external application insulation materials.The other end of bypass flue 7 links to each other with at least one described cooler high temperature section bottom bellows 9, CO in the sintering device flue gas and other a small amount of combustibles such as coke, coal dust fine grained be burning rapidly by cooler high temperature sintering ore bed the time, emit heat, thereby consume the CO in the flue gas, improve the flue-gas temperature of passing through simultaneously, high-temperature flue gas enters waste heat boiler 13 after 12 dedustings of cooler deduster then, enters atmosphere after desulfurizer 14 purifies the back by cooler chimney 15.
Fig. 2 is anti-sintering system second embodiment that burns cooler high temperature section sintering deposit of the utility model sintering machine large flue flue gas, wherein, from the motor spindle bellows 3 that partially sinter of high CO content bypass flue 7 is set.
The results showed, the utility model is with the anti-sintering system that burns cooler high temperature section sintering deposit of sintering machine large flue flue gas, by using sintering machine large flue flue gas, the anti-cooler high temperature section sintering deposit that burns, make the remaining CO completing combustion of sintering machine, play energy-conserving and environment-protective and improve the double effects that waste heat boiler reclaims sintering circuit waste heat efficient.
Claims (1)
1. one kind with the anti-sintering system that burns cooler high temperature section sintering deposit of sintering machine large flue flue gas, comprise sintering machine, cooler, sintering machine bottom bellows are connected with sintering machine deduster and sintering machine chimney in turn by large flue, it is characterized in that, be provided with the bypass flue in the middle of the large flue between described sintering machine deduster and the described sintering machine chimney, or the bypass flue is set from the motor spindle bellows that partially sinter of high CO content, be provided with the bypass blower fan in the described bypass flue, the other end of described bypass flue links to each other with at least one described cooler high temperature section bottom bellows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206776102U CN201935585U (en) | 2010-12-21 | 2010-12-21 | Sintering system for back burning sintered ores in cooler high-temperature section using smoke from big gas duct of sintering machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206776102U CN201935585U (en) | 2010-12-21 | 2010-12-21 | Sintering system for back burning sintered ores in cooler high-temperature section using smoke from big gas duct of sintering machine |
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| Publication Number | Publication Date |
|---|---|
| CN201935585U true CN201935585U (en) | 2011-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010206776102U Expired - Fee Related CN201935585U (en) | 2010-12-21 | 2010-12-21 | Sintering system for back burning sintered ores in cooler high-temperature section using smoke from big gas duct of sintering machine |
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| CN (1) | CN201935585U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109654891A (en) * | 2017-10-10 | 2019-04-19 | 中冶长天国际工程有限责任公司 | A kind of device and method monitored and control heat sinter cooling procedure carbon residue burns |
-
2010
- 2010-12-21 CN CN2010206776102U patent/CN201935585U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109654891A (en) * | 2017-10-10 | 2019-04-19 | 中冶长天国际工程有限责任公司 | A kind of device and method monitored and control heat sinter cooling procedure carbon residue burns |
| CN109654891B (en) * | 2017-10-10 | 2020-03-17 | 中冶长天国际工程有限责任公司 | Device and method for monitoring and controlling residual carbon combustion in cooling process of hot sinter |
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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: 20110817 Termination date: 20161221 |