CN201136876Y - Hot-blast oxygen-enriched sintering head - Google Patents
Hot-blast oxygen-enriched sintering head Download PDFInfo
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- CN201136876Y CN201136876Y CNU2007201586805U CN200720158680U CN201136876Y CN 201136876 Y CN201136876 Y CN 201136876Y CN U2007201586805 U CNU2007201586805 U CN U2007201586805U CN 200720158680 U CN200720158680 U CN 200720158680U CN 201136876 Y CN201136876 Y CN 201136876Y
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Abstract
The utility model relates to a hot-blast and oxygen enrichment sintering device, which belongs to the technical field of the sintering production in the steel industry. The sintering device comprises a filtrating device, an air blower, a cooler, a membrane component, an air extracting pump, a segregating device, a nitrogen enrichment tank, a buffer tank and an oxygen enrichment tank, wherein, the filtrating device, the air blower, the cooler, the membrane component, the air extracting pump, the segregating device, the nitrogen-enriched tank, the surging tank and the oxygen enrichment tank are connected in sequence through a gas pipeline. Through inducting the residual heat of exhaust gas on the cooler, the air flow passing through the material bed is heated, to ensure that the sintering temperature on the upper material bed is raised, the temperature difference between an upper material bed and a lower material bed is reduced, the quality of sintering the mineral is enhanced, and the energy consumption is reduced. By inducting the oxygen enrichment air, the burning condition of fuel can be obviously improved, and the oxidizing atmosphere on the material bed can be obviously reinforced, thereby the sintering device has the advantages that the rotating drum intensity and the utilization factor of sintering the mineral are enhanced, simultaneously, the fuel consumption is reduced, the metallurgical performance of sintering the mineral is improved, etc. The oxygen enrichment technology process is simple, the structure is compact, the environment is not polluted, the effect is obvious, and the service life is long.
Description
Technical field
The utility model relates to a kind of hot blast oxygen-enriched sintering device, belongs to steel industry SINTERING PRODUCTION technical field.
Background technology
Oxygen-enriched sintering is supplied with oxygen enrichment exactly in sinter bed, its effect is to accelerate the solid fuel ignition process, activates combustible element and solid-fuelled reactive behavior in the compound, reduces solid fuel consumption; Reduce FeO content, improve sinter strength, improve yield rate and output, reduce Pulverization ratio, promote the agglomerate quality, alleviate environmental pollution, for blast furnace improves pig iron output, reducing coke ratio provides condition, and remarkable economic efficiency and social benefit are arranged, and meets the energy-saving and cost-reducing fundamental state policy of China.
1992, " agglomerates of sintered pellets " magazine published Flos Bombacis Malabarici iron and steel research institute " oxygen-enriched sintering test " article, has introduced oxygen-enriched sintering cup test situation, and the oxygen enrichment mode has three kinds of igniting oxygen enrichment, sintering oxygen enrichment, omnidistance oxygen enrichments.The igniting oxygen enrichment is under the coal gas ignition condition, and oxygen is added in the combustion air; The sintering oxygen enrichment then is to overlap a special oxygen enrichment cover in sintering process on sintered cup, and oxygen adds around cover; Omnidistance oxygen enrichment is at igniting and sintering whole process oxygenation all.In nonferrous metallurgical process, replacing air with oxygen enrichment is to strengthen the great technical measures of producing, cut down the consumption of energy, curb environmental pollution, improve technical level, increase economic benefit.External plumbous zinc oxygen-enriched sintering was just tested as far back as the later stage seventies 20th century, and to the later stage eighties, because the transformation of airtight blast furnace has increased the demand to agglomerate, oxygen-enriched sintering begins generally to experimentize and use.The external condition of production shows that the only oxygen concentration of plumbous zinc oxygen-enriched sintering is generally 21.5～24%.
In the iron ore powder sintering process, use oxygen-enriched sintering, particularly industrialness and use, do not see bibliographical information.
Summary of the invention
At the deficiencies in the prior art, it is a kind of reasonable in design that the utility model provides, and technology advanced person can improve sinter strength, improves yield rate and output, promotes the agglomerate quality, alleviates the hot blast oxygen-enriched sintering device and the hot blast oxygen-enriched sintering method of environmental pollution.
A kind of hot blast oxygen-enriched sintering device, comprise filtration unit, gas blower, water cooler, membrane module, off-gas pump, tripping device, rich nitrogen pot, surge tank and oxygen enrichment gas tank, connect by gas pipe line successively between filtration unit, gas blower, water cooler, membrane module, off-gas pump, tripping device, rich nitrogen pot, surge tank and the oxygen enrichment gas tank.
Described filtration unit is connected with the sinter machine cooler.
Be provided with weather gage and evacuating valve between described membrane module and the off-gas pump.
Described tripping device is the film oxygen enriching tripping device.
Described rich nitrogen pot is provided with the nitrogen relief outlet.
Described oxygen enrichment gas tank is connected with the sintering device handpiece air bells cap.
The method of utilizing above-mentioned hot blast oxygen-enriched sintering device to carry out the hot blast oxygen-enriched sintering is: sinter machine cooler agglomerate waste heat, send into gas blower by hot air duct by filtering net; Gas blower is sent into water cooler after warm air is forced into 0.049MPa, air themperature is cooled to≤40 ℃; ≤ 40 ℃ air is sent into membrane module; Through membrane module right≤40 ℃ air adsorbs successively, finds time, after the voltage rise, obtain the product gas of oxygen level 25～30%; Off-gas pump is with product gas suction tripping device, and tripping device is separated into oxygen-rich air and nitrogen-rich air with product gas, and nitrogen-rich air enters rich nitrogen pot by the tripping device bottom and is discharged, and oxygen-rich air enters surge tank by tripping device top and rich nitrogen pot top; Surge tank is sent oxygen-rich air into the oxygen enrichment gas tank, oxygen-rich air is warmed to 120～180 ℃ in the oxygen enrichment gas tank after, enters air bells cap and participates in sintering.
This technology is by introducing waste gas residual heat on the cooler, and heating raises the sintering temperature of the top bed of material by the air-flow of the bed of material, and the temperature difference of dwindling upper and lower interlayer significantly improves the agglomerate yield and quality, reduces energy consumption.The introducing of oxygen-rich air can significantly improve fuel combustion conditions and strengthen the oxidizing atmosphere of the bed of material, thereby reaches barrate strength, the utilization coefficient that improves agglomerate, reduces fuel consumption simultaneously, improves advantage such as agglomerate metallurgical performance.The oxygen enriching process flow process is simple, and compact construction is free from environmental pollution, instant effect, long service life.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Wherein, 1, filtration unit.2, gas blower, 3, membrane module, 4, off-gas pump, 5, tripping device, 6, rich nitrogen pot, 7, surge tank, 8, the oxygen enrichment gas tank, 9, weather gage, 10, evacuating valve, 11, water cooler.
Embodiment
Embodiment:
Device of the present utility model as shown in Figure 1, comprise filtration unit 1, gas blower 2, water cooler 11, membrane module 3, off-gas pump 4, tripping device 5, rich nitrogen pot 6, surge tank 7 and oxygen enrichment gas tank 8, connect by gas pipe line successively between filtration unit 1, gas blower 2, water cooler 11, membrane module 3, off-gas pump 4, tripping device 5, rich nitrogen pot 6, surge tank 7 and the oxygen enrichment gas tank 8.
Described filtration unit 1 is connected with the sinter machine cooler.
4 of described membrane module 3 and off-gas pump are provided with weather gage 9 and evacuating valve 10.
Described tripping device 4 is film oxygen enriching tripping devices.
Described rich nitrogen pot 5 is provided with the nitrogen relief outlet.
Described oxygen enrichment gas tank 8 is connected with the sintering device handpiece air bells cap.
The method of utilizing above-mentioned hot blast oxygen-enriched sintering device to carry out the hot blast oxygen-enriched sintering is: sinter machine cooler agglomerate waste heat, send into gas blower by hot air duct by filtering net; Gas blower is sent into water cooler after warm air is forced into 0.049MPa, air themperature is cooled to≤40 ℃; ≤ 40 ℃ air is sent into membrane module; Through membrane module right≤40 ℃ air adsorbs successively, finds time, after the voltage rise, obtain the product gas of oxygen level 25～30%; Off-gas pump is with product gas suction tripping device, and tripping device is separated into oxygen-rich air and nitrogen-rich air with product gas, and nitrogen-rich air enters rich nitrogen pot by the tripping device bottom and is discharged, and oxygen-rich air enters surge tank by tripping device top and rich nitrogen pot top; Surge tank is sent oxygen-rich air into the oxygen enrichment gas tank, oxygen-rich air is warmed to 120～180 ℃ in the oxygen enrichment gas tank after, enters air bells cap and participates in sintering.
This technology is by introducing waste gas residual heat on the cooler, and heating raises the sintering temperature of the top bed of material by the air-flow of the bed of material, and the temperature difference of dwindling upper and lower interlayer significantly improves the agglomerate yield and quality, reduces energy consumption.The introducing of oxygen-rich air can significantly improve fuel combustion conditions and strengthen the oxidizing atmosphere of the bed of material, thereby reaches barrate strength, the utilization coefficient that improves agglomerate, reduces fuel consumption simultaneously, improves advantage such as agglomerate metallurgical performance.The oxygen enriching process flow process is simple, and compact construction is free from environmental pollution, instant effect, long service life.
Claims (6)
1, a kind of hot blast oxygen-enriched sintering device, it is characterized in that, comprise filtration unit, gas blower, water cooler, membrane module, off-gas pump, tripping device, rich nitrogen pot, surge tank and oxygen enrichment gas tank, connect by gas pipe line successively between filtration unit, gas blower, water cooler, membrane module, off-gas pump, tripping device, rich nitrogen pot, surge tank and the oxygen enrichment gas tank.
2, a kind of hot blast oxygen-enriched sintering device as claimed in claim 1 is characterized in that described filtration unit is connected with the sinter machine cooler.
3, a kind of hot blast oxygen-enriched sintering device as claimed in claim 1 is characterized in that, is provided with weather gage and evacuating valve between described membrane module and the off-gas pump.
4, a kind of hot blast oxygen-enriched sintering device as claimed in claim 1 is characterized in that described tripping device is the film oxygen enriching tripping device.
5, a kind of hot blast oxygen-enriched sintering device as claimed in claim 1 is characterized in that described rich nitrogen pot is provided with the nitrogen relief outlet.
6, a kind of hot blast oxygen-enriched sintering device as claimed in claim 1 is characterized in that described oxygen enrichment gas tank is connected with the sintering device handpiece air bells cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201586805U CN201136876Y (en) | 2007-12-19 | 2007-12-19 | Hot-blast oxygen-enriched sintering head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201586805U CN201136876Y (en) | 2007-12-19 | 2007-12-19 | Hot-blast oxygen-enriched sintering head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201136876Y true CN201136876Y (en) | 2008-10-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201586805U Expired - Fee Related CN201136876Y (en) | 2007-12-19 | 2007-12-19 | Hot-blast oxygen-enriched sintering head |
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| CN (1) | CN201136876Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105928369A (en) * | 2016-04-25 | 2016-09-07 | 贵州安达科技能源股份有限公司 | Method and system for reducing product temperature and sintering system |
| CN109681775A (en) * | 2019-01-28 | 2019-04-26 | 南京科技职业学院 | A kind of system and its technique controlling waste gas spreading |
-
2007
- 2007-12-19 CN CNU2007201586805U patent/CN201136876Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105928369A (en) * | 2016-04-25 | 2016-09-07 | 贵州安达科技能源股份有限公司 | Method and system for reducing product temperature and sintering system |
| CN109681775A (en) * | 2019-01-28 | 2019-04-26 | 南京科技职业学院 | A kind of system and its technique controlling waste gas spreading |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081022 Termination date: 20111219 |