CN102766712A - Differential-pressure-free dust discharging device of blast furnace gravity dust collector - Google Patents
Differential-pressure-free dust discharging device of blast furnace gravity dust collector Download PDFInfo
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- CN102766712A CN102766712A CN2012102902294A CN201210290229A CN102766712A CN 102766712 A CN102766712 A CN 102766712A CN 2012102902294 A CN2012102902294 A CN 2012102902294A CN 201210290229 A CN201210290229 A CN 201210290229A CN 102766712 A CN102766712 A CN 102766712A
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Abstract
The invention belongs to a dust discharging device and particularly discloses a differential-pressure-free dust discharging device of a blast furnace gravity dust collector. The differential-pressure-free dust discharging device comprises a gravity dust collector body, a grounded dust bin and a dust discharging valve, wherein the dust discharging valve comprises an upper dust discharging valve and a lower dust discharging valve, a middle dust bin is arranged between the gravity dust collector body and the grounded dust bin, the upper dust discharging valve is arranged between the gravity dust collector body and the middle dust bin, the lower dust discharging valve is arranged between the middle dust bin and the grounded dust bin, a pressure equalizing pipeline is arranged between the gravity dust collector body and the middle dust bin, a pressure equalizing valve is arranged on the pressure equalizing pipeline, a diffusing pipeline is arranged between the middle dust bin and the grounded dust bin, and a diffusing valve is arranged on the diffusing pipeline. The differential-pressure-free dust discharging device of the blast furnace gravity dust collector has the advantages that by means of a two-stage dust discharging method, dust discharging differential pressure is eliminated, a gas flow velocity is substantially reduced, the abrasion of the dust discharging valve is substantially reduced, secondary dust raising pollution can be avoided during a dust discharging process, gas leakage can be reduced, safety hazards of operators can be reduced, power consumption of dust discharging machines can be reduced, and the like.
Description
Technical field
The present invention relates to a kind of cinerary device, especially a kind of iron and steel metallurgical industry gravity blast furnace dust catcher does not have the pressure reduction cinerary device.
Background technology
Blast furnace contains a large amount of dusts in the raw gas of formation in the process of ordinary production, these solid ashes must effectively be collected, discharge; The one-level collection device of blast-furnace dust is a gravity blast furnace dust catcher; Characteristics such as gravitational precipitator has simple in structure, and efficiency of dust collection is better, and drag losses is little; Gravitational precipitator is widely used in the dust-removal system of blast furnace gas, and efficiency of dust collection can reach 80%.The ash amount of discharging through gravitational precipitator generally reaches about ton iron 16kg.According to the ironmaking production technique, need regularly to discharge the ash of pouncing on collection in the gravitational precipitator, these grey dischargings need be accomplished through the corresponding device of gravitational precipitator below.It is big generally in discharging process, can to form the inside and outside pressure reduction of airborne dust, especially gravitational precipitator, and flow velocity is higher relatively during discharging; The one, form airborne dust more easily, the 2nd, easily ash-removing valve is caused wearing and tearing, the current method that prevents to put grey airborne dust is with the dust humidification through Humidifying ash discharging machine; But because the existence of the inside and outside pressure reduction of gravitational precipitator; Still can't control airborne dust and secondary pollution fully, and put grey process and follow coal gas discharging, directly influence the worker's of iron and steel enterprise physical and mental health.At present, good solution is not also arranged.
Summary of the invention
Technical assignment of the present invention is to provide a kind of gravity blast furnace dust catcher not have the pressure reduction cinerary device to above-mentioned deficiency of the prior art; This a kind of gravity blast furnace dust catcher does not have the pressure reduction cinerary device and has to have eliminated through the method for two-stage ash discharge and put grey pressure reduction; Reduce gas speed significantly; Alleviate wearing and tearing significantly, but also can avoid putting the reentrainment of dust pollution of grey process, can reduce gas leak ash-removing valve; Reduce operator's potential safety hazard, can reduce the characteristics of dust unloadnig apparatus equipment electricity consumption.
The technical solution adopted for the present invention to solve the technical problems is: it comprises gravitational precipitator, land grey storehouse and ash-removing valve; Described ash-removing valve comprises ash-removing valve and following ash-removing valve; Grey storehouse in the middle of described gravitational precipitator and landing is provided with between the grey storehouse, the described ash-removing valve of going up is arranged between gravitational precipitator and the middle grey storehouse, grey storehouse and landing between the grey storehouse in the middle of following ash-removing valve is arranged on; Be provided with pressure-equalizing passageway between described gravitational precipitator and the middle grey storehouse; Described pressure-equalizing passageway is provided with pressure-balance valve, grey storehouse, described centre and land and be provided with diffuse channel between the grey storehouse, and described diffuse channel is provided with and diffuses valve.
A kind of gravity blast furnace dust catcher of the present invention does not have the pressure reduction cinerary device to be compared with prior art, has following outstanding beneficial effect: realize not having pressure reduction between middle grey storehouse and the gravitational precipitator through pressure-equalizing passageway and pressure-balance valve are set, through diffuse channel being set and diffusing valve; Grey storehouse and land and do not have pressure reduction between the grey storehouse in the middle of realizing has been eliminated through the method for two-stage ash discharge and has been put grey pressure reduction, reduces gas speed significantly; Alleviate wearing and tearing significantly to ash-removing valve; In the work-ing life of prolongation equipment, reduce equipment maintenance cost, but also the reentrainment of dust that can avoid putting grey process pollutes; Can effectively improve corporate environment increases economic efficiency; Can reduce gas leak, reduce operator's potential safety hazard, can reduce characteristics such as dust unloadnig apparatus equipment electricity consumption.
Description of drawings
Accompanying drawing 1 is the main TV structure synoptic diagram that a kind of gravity blast furnace dust catcher does not have the pressure reduction cinerary device;
Description of reference numerals: 1, gravitational precipitator, 2, go up ash-removing valve, 3, middle grey storehouse, 4, ash-removing valve down, 5, pressure-equalizing passageway, 6, pressure-balance valve, 7, diffuse channel, 8, diffuse valve, 9, land grey storehouse.
Embodiment
There is not explanation at length below the pressure reduction cinerary device work with reference to 1 pair of a kind of gravity blast furnace dust catcher of the present invention of Figure of description.
A kind of gravity blast furnace dust catcher of the present invention does not have the pressure reduction cinerary device; Its structure comprises gravitational precipitator 1, land grey storehouse 9 and ash-removing valve; Described ash-removing valve comprises ash-removing valve 2 and following ash-removing valve 4; Grey storehouse 3 in the middle of described gravitational precipitator 1 and landing is provided with between the grey storehouse 9, the described ash-removing valve 2 of going up is arranged between gravitational precipitator 1 and the middle grey storehouse 3, grey storehouse 3 and landing between the grey storehouse 9 in the middle of following ash-removing valve 4 is arranged on; Be provided with pressure-equalizing passageway 5 between described gravitational precipitator 1 and the middle grey storehouse 3; Described pressure-equalizing passageway 5 is provided with pressure-balance valve 6, grey storehouse 3, described centre and land and be provided with diffuse channel 7 between the grey storehouse 9, and described diffuse channel 7 is provided with and diffuses valve 8.
All press through realizing between pressure-equalizing passageway 5 and 6 pairs of gravitational precipitators 1 of pressure-balance valve and the middle grey storehouse 3, through diffuse channel 7 with diffuse grey storehouse 3,8 pairs of centres of valve and land and realize release between the grey storehouse 9, eliminated through the method for two-stage ash discharge and put grey pressure reduction; Reduce gas speed significantly; Alleviate wearing and tearing significantly, prolong the work-ing life of equipment, reduce equipment maintenance cost ash-removing valve; But also the reentrainment of dust that can avoid putting grey process pollutes, and can effectively improve corporate environment and increase economic efficiency.
Except that the described technical characterictic of specification sheets, be the known technology of those skilled in the art.
Claims (1)
1. a gravity blast furnace dust catcher does not have the pressure reduction cinerary device; Comprise gravitational precipitator, land grey storehouse and ash-removing valve, it is characterized in that: described ash-removing valve comprises ash-removing valve and following ash-removing valve, described gravitational precipitator and land and be provided with grey storehouse, centre between the grey storehouse; The described ash-removing valve of going up is arranged between gravitational precipitator and the middle grey storehouse; Following ash-removing valve is arranged on middle grey storehouse and lands between the grey storehouse, is provided with pressure-equalizing passageway between described gravitational precipitator and the middle grey storehouse, and described pressure-equalizing passageway is provided with pressure-balance valve; Grey storehouse, described centre and land and be provided with diffuse channel between the grey storehouse, described diffuse channel is provided with and diffuses valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210290229.4A CN102766712B (en) | 2012-08-15 | 2012-08-15 | Differential-pressure-free dust discharging device of blast furnace gravity dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210290229.4A CN102766712B (en) | 2012-08-15 | 2012-08-15 | Differential-pressure-free dust discharging device of blast furnace gravity dust collector |
Publications (2)
| Publication Number | Publication Date |
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| CN102766712A true CN102766712A (en) | 2012-11-07 |
| CN102766712B CN102766712B (en) | 2014-12-03 |
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| CN201210290229.4A Expired - Fee Related CN102766712B (en) | 2012-08-15 | 2012-08-15 | Differential-pressure-free dust discharging device of blast furnace gravity dust collector |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104004872A (en) * | 2014-06-19 | 2014-08-27 | 济钢集团有限公司 | Ash discharging device of blast furnace gravity dust remover |
| CN112176143A (en) * | 2020-09-25 | 2021-01-05 | 中冶南方工程技术有限公司 | Double-intermediate-ash-bin ash discharging system and method for gravity dust removal and ash discharging of blast furnace |
| CN113215342A (en) * | 2021-01-15 | 2021-08-06 | 广东韶钢松山股份有限公司 | Closed ash discharging device of blast furnace gravity dust collector and using method thereof |
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| CN2543965Y (en) * | 2002-03-31 | 2003-04-09 | 邓学铮 | Dry type pressure-releasing continuous ash conveying device for dust remover of blast furnace |
| CN200981771Y (en) * | 2006-12-07 | 2007-11-28 | 首钢总公司 | Blast furnace gas dust removal self-flowing tank car transportation device |
| CN201873337U (en) * | 2010-12-02 | 2011-06-22 | 克莱德物料输送技术（北京）有限公司 | Dry-method dedusting dense-phase pneumatic transmission system of blast furnace |
| CN201924032U (en) * | 2010-12-27 | 2011-08-10 | 攀钢集团钢铁钒钛股份有限公司 | Bag dust collecting device for blast furnace |
| CN202849468U (en) * | 2012-08-15 | 2013-04-03 | 济钢集团有限公司 | Differential-pressure-free dust discharging device for gravitational dust collector of blast furnace |
-
2012
- 2012-08-15 CN CN201210290229.4A patent/CN102766712B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2543965Y (en) * | 2002-03-31 | 2003-04-09 | 邓学铮 | Dry type pressure-releasing continuous ash conveying device for dust remover of blast furnace |
| CN200981771Y (en) * | 2006-12-07 | 2007-11-28 | 首钢总公司 | Blast furnace gas dust removal self-flowing tank car transportation device |
| CN201873337U (en) * | 2010-12-02 | 2011-06-22 | 克莱德物料输送技术（北京）有限公司 | Dry-method dedusting dense-phase pneumatic transmission system of blast furnace |
| CN201924032U (en) * | 2010-12-27 | 2011-08-10 | 攀钢集团钢铁钒钛股份有限公司 | Bag dust collecting device for blast furnace |
| CN202849468U (en) * | 2012-08-15 | 2013-04-03 | 济钢集团有限公司 | Differential-pressure-free dust discharging device for gravitational dust collector of blast furnace |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104004872A (en) * | 2014-06-19 | 2014-08-27 | 济钢集团有限公司 | Ash discharging device of blast furnace gravity dust remover |
| CN104004872B (en) * | 2014-06-19 | 2015-07-15 | 济钢集团有限公司 | Ash discharging device of blast furnace gravity dust remover |
| CN112176143A (en) * | 2020-09-25 | 2021-01-05 | 中冶南方工程技术有限公司 | Double-intermediate-ash-bin ash discharging system and method for gravity dust removal and ash discharging of blast furnace |
| CN113215342A (en) * | 2021-01-15 | 2021-08-06 | 广东韶钢松山股份有限公司 | Closed ash discharging device of blast furnace gravity dust collector and using method thereof |
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| CN102766712B (en) | 2014-12-03 |
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Granted publication date: 20141203 Termination date: 20190815 |