CN202208731U - Dust removal air distribution device of blast furnace casting house - Google Patents
Dust removal air distribution device of blast furnace casting house Download PDFInfo
- Publication number
- CN202208731U CN202208731U CN2011203256810U CN201120325681U CN202208731U CN 202208731 U CN202208731 U CN 202208731U CN 2011203256810 U CN2011203256810 U CN 2011203256810U CN 201120325681 U CN201120325681 U CN 201120325681U CN 202208731 U CN202208731 U CN 202208731U
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- China
- Prior art keywords
- blast furnace
- dust
- distribution device
- dedusting
- dust removal
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Abstract
The utility model relates to a dust remover in the metallurgy field, and particular to a dust removal air distribution device of a blast furnace casting house. The device comprises a dust removing main air blower, an iron outlet and dust removing points, wherein the dust removing main air blower is connected to the iron outlet via a main pipeline with valves arranged thereon; and branch pipes arranged on the main pipeline and provided with valves arranged thereon are connected to the dust removing points. According to the utility model, the pipelines in the casting house are connected via the branch pipes, the valves are used for air distribution, and instant dust at the iron outlet is solved by distributing air volume at the dust removing points to a dust removing cover at the iron outlet of the blast furnace when the sputtering or the blockage occurs at the iron outlet. The utility model has wide application prospect in the dust removal of the blast furnace casting house, can eradicate the large amount of raised dust resulted from the sputtering and blockage of the blast furnace with respect to the blast furnace with larger air volume in a blast furnace casting house dust removal system, and has obvious effect on dust removal, energy conservation and efficient operation.
Description
Technical field
The utility model relates to a kind of cleaning apparatus of field of metallurgy, a kind of specifically blast furnace discharge yard dedusting air quantity distribution device.
Background technology
Along with the national economic development; Environmental requirement to smelter is increasingly high; Especially the governing problem of blast furnace discharge yard airborne dust is directly connected to the environmental image of enterprise; The at present domestic blast furnace discharge yard smoke and dust treatment technology of generally using is after once putting maximum exhaust gas volumn and design each dust sucting point air quantity according to each, to adopt dust excluding hood to collect dust and after the fly-ash separator processing, enter atmosphere.Above treatment process is widely used in the blast furnace discharge yard dust-removal system.But there are following defective in existing technology and device: (1) in the big spray of blast furnace or when opening stifled iron notch, moment fume amount huge, the conventional design air quantity often can not capture the flue dust that distributes fully; (2) do not consider that blast furnace flue gas produces source momentary fluctuation property, increase the dust-removal system air quantity simply, operation power consumption and once obviously increase of investment influence treatment effect, and are unfavorable for further energy-conservation.
The utility model content
The utility model technical problem to be solved is; Overcome the shortcoming of prior art; Propose a kind of blast furnace discharge yard dedusting air quantity distribution device, improve that the iron mouth sprays greatly or the instantaneous dust catching efficient when opening stifled iron notch, and be implemented in the effectively energy-conservation of dust-removal system under the normal operating condition.
The technical scheme that the utility model solves above technical problem is:
Blast furnace discharge yard dedusting air quantity distribution device comprises dedusting main air blower, iron notch and removes dirt pits that the dedusting main air blower is connected to iron notch through the main pipe line that is provided with valve, tells the arm that is provided with valve on the main pipe line and is connected to respectively except that dirt pits.
The utility model through a pipe coupling, utilizes each pipeline of casting house valve carry out air quantity and distributes, and when the iron mouth splash occurs or opens stifled iron notch, it is respectively removed the dirt pits air quantity be assigned to blast furnace iron notch position dust excluding hood, solves the instantaneous flue dust of iron oral area position.
The technical scheme that the utility model further limits is:
Aforesaid blast furnace discharge yard dedusting air quantity distribution device, the aperture of valve is 50～80% on the arm.Valve is pneumatic ventilation butterfly valve.
Aforesaid blast furnace discharge yard dedusting air quantity distribution device, the dedusting main air blower is provided with fluid coupling or frequency transformer.
The beneficial effect of the utility model is: the present invention has wide use prospect in blast furnace discharge yard dedusting application facet; For the bigger blast furnace of blast furnace discharge yard dust removal design systematic air flow; Can effect a radical cure the big spray of blast furnace and open a large amount of airborne dusts that stifled iron notch causes, blast furnace discharge yard dedusting energy-saving, efficient operation are had a significant effect.
Description of drawings
Fig. 1 is the connection synoptic diagram of the utility model.
Embodiment
Embodiment 1
Present embodiment is a kind of blast furnace discharge yard dedusting air quantity distribution device; Connect as shown in Figure 1; Blast furnace discharge yard dedusting air quantity distribution device; Comprise dedusting main air blower 1, iron notch 3 and remove dirt pits 2, dedusting main air blower 1 is connected to iron notch 3 through the main pipe line 5 that is provided with valve 6, tells the arm 4 that is provided with valve 7 on the main pipe line 5 and is connected to respectively except that dirt pits 2.Dedusting main air blower 1 is connected to an iron notch 3 through main pipe line 5; Other remove dirt pits 2 and connect dedusting main air blower 1 through arm 4; On main pipe line 5, remove dirt pits through other of arm 4 minutes to this iron notch; Realize that through valve 7 other air quantity that remove between dirt pits and the iron notch switch, after this iron mouth taps a blast furnace completion, realize that through valve 6 air quantity of other iron notchs and this iron notch switches.Dedusting main air blower 1 is provided with fluid coupling or frequency transformer.Valve 6 and 7 is pneumatic ventilation butterfly valve, and valve 7 apertures on the arm 4 are 50 ~ 80%.
The control process of the utility model is:
Blast furnace casting is normal, and the dust generation at positions such as iron mouth and iron ladle is less; Slight splash phenomenon appears in blast furnace iron notch, and the dust generation increases; The big spray of blast furnace taphole, the dust generation obviously increases.Blast furnace casting is normal, produces Dust Capacity according to the scene, the dedusting main air blower is carried out the exhausting amount regulate; There are fluid coupling or frequency transformer dual mode to regulate the dedusting fan rotating speed; Under the prerequisite of air quantity that guarantees normally to tap a blast furnace, realize the SR of blower fan, to reach energy-conservation purpose.Slight splash appears in the iron mouth, and iron notch place flue dust has increase tendency, and under the normal circumstances, air quantity can not siphon away flue dust fully, the dedusting main air blower is carried out the exhausting amount regulate, and carries out the high-speed cruising of blower fan, increases the stokehold air quantity.The big spray of blast furnace taphole; Dust Capacity moment increase; The blower fan high-speed cruising can not extract on-the-spot dust, uses the utility model that the air quantity that other remove about dirt pits air quantity 50～80% (look the dust-removal system total blast volume and decide, other do not have obvious airborne dust to be as the criterion except that dirt pits) is switched to iron notch position dust hood; Increase the air quantity of iron notch dust excluding hood, reach moment to extract the purpose of the oral area position flue dust that taps a blast furnace.
Except that the foregoing description, the utility model can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (4)
1. blast furnace discharge yard dedusting air quantity distribution device; Comprise dedusting main air blower, iron notch and remove dirt pits; It is characterized in that: said dedusting main air blower is connected to iron notch through the main pipe line that is provided with valve, tells the arm that is provided with valve on the said main pipe line and is connected to respectively except that dirt pits.
2. blast furnace discharge yard dedusting air quantity distribution device as claimed in claim 1, it is characterized in that: the aperture of valve is 50～80% on the said arm.
3. according to claim 1 or claim 2 blast furnace discharge yard dedusting air quantity distribution device, it is characterized in that: said valve is pneumatic ventilation butterfly valve.
4. according to claim 1 or claim 2 blast furnace discharge yard dedusting air quantity distribution device, it is characterized in that: said dedusting main air blower is provided with fluid coupling or frequency transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203256810U CN202208731U (en) | 2011-09-01 | 2011-09-01 | Dust removal air distribution device of blast furnace casting house |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203256810U CN202208731U (en) | 2011-09-01 | 2011-09-01 | Dust removal air distribution device of blast furnace casting house |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202208731U true CN202208731U (en) | 2012-05-02 |
Family
ID=45988283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203256810U Expired - Fee Related CN202208731U (en) | 2011-09-01 | 2011-09-01 | Dust removal air distribution device of blast furnace casting house |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202208731U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107557522A (en) * | 2017-07-10 | 2018-01-09 | 首钢京唐钢铁联合有限责任公司 | Method for removing dust on roof of steel plant |
| CN109706279A (en) * | 2019-01-21 | 2019-05-03 | 中冶赛迪工程技术股份有限公司 | A kind of cooling means and system of the air-cooled main trough steel casing of blast furnace |
| CN111589241A (en) * | 2020-04-16 | 2020-08-28 | 包头钢铁（集团）有限责任公司 | Converter triple dust removal clerestory and roof clerestory optimization transformation control method |
-
2011
- 2011-09-01 CN CN2011203256810U patent/CN202208731U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107557522A (en) * | 2017-07-10 | 2018-01-09 | 首钢京唐钢铁联合有限责任公司 | Method for removing dust on roof of steel plant |
| CN109706279A (en) * | 2019-01-21 | 2019-05-03 | 中冶赛迪工程技术股份有限公司 | A kind of cooling means and system of the air-cooled main trough steel casing of blast furnace |
| CN111589241A (en) * | 2020-04-16 | 2020-08-28 | 包头钢铁（集团）有限责任公司 | Converter triple dust removal clerestory and roof clerestory optimization transformation control method |
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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: 20120502 Termination date: 20170901 |