CN202849468U - Differential-pressure-free dust discharging device for gravitational dust collector of blast furnace - Google Patents
Differential-pressure-free dust discharging device for gravitational dust collector of blast furnace Download PDFInfo
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- CN202849468U CN202849468U CN 201220402736 CN201220402736U CN202849468U CN 202849468 U CN202849468 U CN 202849468U CN 201220402736 CN201220402736 CN 201220402736 CN 201220402736 U CN201220402736 U CN 201220402736U CN 202849468 U CN202849468 U CN 202849468U
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- dust
- ash
- valve
- pressure
- gravitational
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Abstract
The utility model discloses a differential-pressure-free dust discharging device for a gravitational dust collector of a blast furnace and belongs to a dust discharging device. The differential-pressure-free dust discharging device structurally comprises a gravitational dust collector, a floor type 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 gravitational dust collector and the floor type dust bin, the upper dust discharging valve is arranged between the gravitational dust collector and the middle dust bin, the lower dust discharging valve is arranged between the middle dust bin and the floor type dust bin, a pressure equalizing pipeline is arranged between the gravitational dust collector and the middle dust bin, the pressure equalizing pipeline is provided with a pressure equalizing valve, a diffusing pipeline is arranged between the middle dust bin and the floor type dust bin, and the diffusing pipeline is provided with a diffusing valve. The differential-pressure-free dust discharging device disclosed by the utility model has the characteristics that dust discharging pressure difference is eliminated by adopting a two-stage dust discharging method, flow rate of gas is greatly reduced, abrasion to the dust discharging valve is greatly reduced, secondary flowing dust pollution in a dust discharging process also can be avoided, leakage of the gas can be reduced, potential safety hazard to operating personnel is reduced and power utilization of dust discharging equipment can be reduced.
Description
Technical field
The utility model relates to a kind of cinerary device, and especially a kind of iron and steel metallurgical industry gravity blast furnace dust catcher is without the pressure reduction cinerary device.
Background technology
Blast furnace is in normal process of producing, contain a large amount of dusts in the raw gas that forms, these solid ashes must effectively be collected, discharge, the one-level collection device of blast-furnace dust is gravity blast furnace dust catcher, the 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 by gravitational precipitator generally reaches about ton iron 16kg.According to ironmaking production technique, need regularly to discharge the ash of pouncing on collection in the gravitational precipitator, the discharging of these ashes need to be finished by the corresponding device of gravitational precipitator below.Generally in the process of discharging, can form airborne dust, especially the inside and outside pressure reduction of gravitational precipitator is large, flow velocity is relatively high during discharging, the one, more easily form airborne dust, the 2nd, easily ash-removing valve is caused wearing and tearing, the current method that prevents from putting grey airborne dust is with the dust humidification by 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 affect the worker's of iron and steel enterprise physical and mental health.At present, good solution is not also arranged.
The utility model content
Technical assignment of the present utility model is to provide a kind of gravity blast furnace dust catcher without the pressure reduction cinerary device for above-mentioned deficiency of the prior art, this a kind of gravity blast furnace dust catcher has to have eliminated by the method for two-stage ash discharge without the pressure reduction cinerary device puts grey pressure reduction, the decrease gas speed, significantly alleviate the wearing and tearing to ash-removing valve, but also the reentrainment of dust that can avoid putting grey process pollutes, can reduce gas leak, reduce operator's potential safety hazard, can reduce the characteristics of dust unloadnig apparatus equipment electricity consumption.
The technical scheme that its technical problem that solves the utility model adopts 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 the ash silo, described upper ash-removing valve is arranged between gravitational precipitator and the middle ash silo, lower ash-removing valve is arranged on middle ash silo and lands between the ash silo, be provided with pressure-equalizing passageway between described gravitational precipitator and the middle ash silo, be provided with equalizing valve on the described pressure-equalizing passageway, ash silo and land and be provided with diffuse channel between the ash silo in the middle of described is provided with diffusion valve on the described diffuse channel.
A kind of gravity blast furnace dust catcher of the present utility model is compared with existing technology without the pressure reduction cinerary device, has following outstanding beneficial effect: realize between middle ash silo and the gravitational precipitator without pressure reduction by pressure-equalizing passageway and equalizing valve are set, by diffuse channel and diffusion valve are set, ash silo and landing between the ash silo without pressure reduction in the middle of realizing, eliminated by the method for two-stage ash discharge and to have put grey pressure reduction, the decrease 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 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 the characteristics such as dust unloadnig apparatus equipment electricity consumption.
Description of drawings
Accompanying drawing 1 is that a kind of gravity blast furnace dust catcher is without the main TV structure schematic diagram of 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
Explain below doing without the pressure reduction cinerary device with reference to 1 pair of a kind of gravity blast furnace dust catcher of the present utility model of Figure of description.
A kind of gravity blast furnace dust catcher of the present utility model is without the 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 the ash silo 9, described upper ash-removing valve 2 is arranged between gravitational precipitator 1 and the middle ash silo 3, lower ash-removing valve 4 is arranged on middle ash silo 3 and lands between the ash silo 9, be provided with pressure-equalizing passageway 5 between described gravitational precipitator 1 and the middle ash silo 3, be provided with equalizing valve 6 on the described pressure-equalizing passageway 5, ash silo 3 and land and be provided with diffuse channel 7 between the ash silo 9 in the middle of described is provided with diffusion valve 8 on the described diffuse channel 7.
By realizing all pressures between pressure-equalizing passageway 5 and 6 pairs of gravitational precipitators 1 of equalizing valve and the middle ash silo 3, by ash silos 3 in the middle of 8 pairs of diffuse channel 7 and the diffusion valves with land and realize release between the ash silo 9, eliminated by the method for two-stage ash discharge and to have put grey pressure reduction, the decrease 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 the reentrainment of dust that can avoid putting grey process pollutes, and can effectively improve corporate environment and increase economic efficiency.
Except 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 is without the 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 the ash silo, described upper ash-removing valve is arranged between gravitational precipitator and the middle ash silo, lower ash-removing valve is arranged on middle ash silo and lands between the ash silo, be provided with pressure-equalizing passageway between described gravitational precipitator and the middle ash silo, be provided with equalizing valve on the described pressure-equalizing passageway, ash silo and land and be provided with diffuse channel between the ash silo in the middle of described is provided with diffusion valve on the described diffuse channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220402736 CN202849468U (en) | 2012-08-15 | 2012-08-15 | Differential-pressure-free dust discharging device for gravitational dust collector of blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220402736 CN202849468U (en) | 2012-08-15 | 2012-08-15 | Differential-pressure-free dust discharging device for gravitational dust collector of blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202849468U true CN202849468U (en) | 2013-04-03 |
Family
ID=47980688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220402736 Withdrawn - After Issue CN202849468U (en) | 2012-08-15 | 2012-08-15 | Differential-pressure-free dust discharging device for gravitational dust collector of blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202849468U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102766712A (en) * | 2012-08-15 | 2012-11-07 | 济钢集团有限公司 | Differential-pressure-free dust discharging device of blast furnace gravity dust collector |
| CN111363593A (en) * | 2018-12-26 | 2020-07-03 | 上海梅山钢铁股份有限公司 | Ash discharging device of dry-wet dual-purpose gravity dust collector |
-
2012
- 2012-08-15 CN CN 201220402736 patent/CN202849468U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102766712A (en) * | 2012-08-15 | 2012-11-07 | 济钢集团有限公司 | Differential-pressure-free dust discharging device of blast furnace gravity dust collector |
| CN102766712B (en) * | 2012-08-15 | 2014-12-03 | 济钢集团有限公司 | Differential-pressure-free dust discharging device of blast furnace gravity dust collector |
| CN111363593A (en) * | 2018-12-26 | 2020-07-03 | 上海梅山钢铁股份有限公司 | Ash discharging device of dry-wet dual-purpose gravity dust collector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130403 Effective date of abandoning: 20141203 |
|
| RGAV | Abandon patent right to avoid regrant |