CN102766712B - 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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- CN102766712B CN102766712B CN201210290229.4A CN201210290229A CN102766712B CN 102766712 B CN102766712 B CN 102766712B CN 201210290229 A CN201210290229 A CN 201210290229A CN 102766712 B CN102766712 B CN 102766712B
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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 is without pressure reduction cinerary device.
Background technology
Blast furnace is in normal process of producing, in the raw gas forming, contain a large amount of dusts, these solid ashes must effectively be collected, discharge, the one-level collection device of blast-furnace dust is gravity blast furnace dust catcher, the features 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 by gravitational precipitator generally reaches a ton iron 16kg left and right.According to ironmaking production technique, need regularly to discharge the ash of flutterring collection in gravitational precipitator, the discharge of these ashes need to complete by the corresponding device of gravitational precipitator below.Generally in the process of discharge, can form airborne dust, especially the inside and outside pressure reduction of gravitational precipitator is large, when discharge, flow velocity is relatively high, the one, more easily form airborne dust, the 2nd, easily ash-removing valve is caused to wearing and tearing, the current method that prevents from putting grey airborne dust is by dust humidification by Humidifying ash discharging machine, but due to the existence of the inside and outside pressure reduction of gravitational precipitator, still cannot control airborne dust and secondary pollution completely, and put grey process and follow coal gas discharge, directly affect the worker's of iron and steel enterprise physical and mental health.At present, the solution also not had.
Summary of the invention
Technical assignment of the present invention is to provide a kind of gravity blast furnace dust catcher without pressure reduction cinerary device for above-mentioned deficiency of the prior art, this a kind of gravity blast furnace dust catcher has by the method for two-stage ash discharge and has eliminated and put grey pressure reduction without pressure reduction cinerary device, significantly reduce gas speed, significantly alleviate the wearing and tearing to ash-removing valve, but also can avoid the reentrainment of dust of putting grey process to pollute, can reduce gas leak, reduce operator's potential safety hazard, can reduce the feature 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 ash silo and ash-removing valve, described ash-removing valve comprises ash-removing valve and lower ash-removing valve, ash silo in the middle of described gravitational precipitator and landing is provided with between ash silo, described upper ash-removing valve is arranged between gravitational precipitator and middle ash silo, lower ash-removing valve is arranged on middle ash silo and lands between ash silo, between described gravitational precipitator and middle ash silo, be provided with pressure-equalizing passageway, on described pressure-equalizing passageway, be provided with equalizing valve, described middle ash silo and land and be provided with diffuse channel between ash silo, on described diffuse channel, be provided with diffusion valve.
A kind of gravity blast furnace dust catcher of the present invention without pressure reduction cinerary device compared to the prior art, there is following outstanding beneficial effect: realize between middle ash silo and gravitational precipitator without pressure reduction by pressure-equalizing passageway and equalizing valve are set, by diffuse channel and diffusion valve are set, realize middle ash silo and land between ash silo without pressure reduction, eliminate and put grey pressure reduction by the method for two-stage ash discharge, significantly reduce gas speed, significantly alleviate the wearing and tearing to ash-removing valve, the work-ing life of extension device, reduce equipment maintenance cost, but also can avoid the reentrainment of dust of putting grey process to pollute, can effectively improve corporate environment increases economic efficiency, can reduce gas leak, reduce operator's potential safety hazard, can reduce the features such as dust unloadnig apparatus equipment electricity consumption.
Brief description of the drawings
Accompanying drawing 1 is the main TV structure schematic diagram of a kind of gravity blast furnace dust catcher without pressure reduction cinerary device;
Description of reference numerals: 1, gravitational precipitator, 2, upper ash-removing valve, 3, middle ash silo, 4, lower ash-removing valve, 5, pressure-equalizing passageway, 6, equalizing valve, 7, diffuse channel, 8, diffusion valve, 9, land ash silo.
Embodiment
With reference to Figure of description 1, a kind of gravity blast furnace dust catcher of the present invention is described in detail below without pressure reduction cinerary device.
A kind of gravity blast furnace dust catcher of the present invention is without pressure reduction cinerary device, its structure comprises gravitational precipitator 1, land ash silo 9 and ash-removing valve, described ash-removing valve comprises ash-removing valve 2 and lower ash-removing valve 4, ash silo 3 in the middle of described gravitational precipitator 1 and landing is provided with between ash silo 9, described upper ash-removing valve 2 is arranged between gravitational precipitator 1 and middle ash silo 3, lower ash-removing valve 4 is arranged on middle ash silo 3 and lands between ash silo 9, between described gravitational precipitator 1 and middle ash silo 3, be provided with pressure-equalizing passageway 5, on described pressure-equalizing passageway 5, be provided with equalizing valve 6, described middle ash silo 3 and land and be provided with diffuse channel 7 between ash silo 9, on described diffuse channel 7, be provided with diffusion valve 8.
By pressure-equalizing passageway 5 and equalizing valve 6, realization between gravitational precipitator 1 and middle ash silo 3 is all pressed, by diffuse channel 7 and diffusion valve 8 to middle ash silo 3 with land and realize release between ash silo 9, eliminate and put grey pressure reduction by the method for two-stage ash discharge, significantly reduce gas speed, significantly alleviate the wearing and tearing to ash-removing valve, in the work-ing life of extension device, reduce equipment maintenance cost, but also can avoid the reentrainment of dust of putting grey process to pollute, can effectively improve corporate environment and increase economic efficiency.
Except the technical characterictic described in specification sheets, be the known technology of those skilled in the art.
Claims (1)
1. a gravity blast furnace dust catcher is without pressure reduction cinerary device, comprise gravitational precipitator, land ash silo and ash-removing valve, it is characterized in that: described ash-removing valve comprises ash-removing valve and lower ash-removing valve, ash silo in the middle of described gravitational precipitator and landing is provided with between ash silo, described upper ash-removing valve is arranged between gravitational precipitator and middle ash silo, lower ash-removing valve is arranged on middle ash silo and lands between ash silo, between described gravitational precipitator and middle ash silo, be provided with pressure-equalizing passageway, on described pressure-equalizing passageway, be provided with equalizing valve, described middle ash silo and land and be provided with diffuse channel between ash silo, on described diffuse channel, be provided with diffusion 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 |
|---|---|
| CN102766712A CN102766712A (en) | 2012-11-07 |
| CN102766712B true CN102766712B (en) | 2014-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
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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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| CN (1) | CN102766712B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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 |
-
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 |
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| CN102766712A (en) | 2012-11-07 |
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Granted publication date: 20141203 Termination date: 20190815 |
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