CN203923250U - Novel air-curtain type converter secondary flue gas capturing device - Google Patents
Novel air-curtain type converter secondary flue gas capturing device Download PDFInfo
- Publication number
- CN203923250U CN203923250U CN201420227900.5U CN201420227900U CN203923250U CN 203923250 U CN203923250 U CN 203923250U CN 201420227900 U CN201420227900 U CN 201420227900U CN 203923250 U CN203923250 U CN 203923250U
- Authority
- CN
- China
- Prior art keywords
- air
- flue gas
- converter
- secondary flue
- capturing device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical group [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 239000003546 flue gas Substances 0.000 title claims abstract description 28
- 239000003517 fume Substances 0.000 claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 19
- 239000010959 steel Substances 0.000 claims abstract description 19
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000002893 slag Substances 0.000 claims abstract description 17
- 229910052742 iron Inorganic materials 0.000 claims abstract description 9
- 238000004140 cleaning Methods 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 3
- 230000002265 prevention Effects 0.000 claims abstract description 3
- 239000000779 smoke Substances 0.000 claims abstract description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 210000005056 cell body Anatomy 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 238000009792 diffusion process Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 description 4
- 230000035939 shock Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
The utility model relates to a kind of novel air-curtain type converter secondary flue gas capturing device, it comprises and is separately positioned on the air curtain device of steel, slag transport passage both sides and is arranged on the fume trap cover in converter, described fume trap cover is communicated with outside cleaning shaft by induced exhaust, described fume trap cover, described air curtain device, described converter, is arranged on the iron ladle of described converter top and the space of a relative sealing of anti-smoke-box formation; It is indoor that described converter is placed in described Smoke prevention; Described air curtain device comprises the compressed air pipe that supplies being connected with external air source, and the described compressed air pipe that supplies is connected with the wall of steel, slag transport passage by support, and the described compressed air pipe that supplies is provided with a plurality of air-out apparatus.The beneficial effects of the utility model are: 1, simple in structure, convenient realization.2, can reduce the wild air quantity that enters the fume trap cover that is arranged on converter top, be conducive to fume trap cover before the not a large amount of diffusions of converter secondary flue gas by efficiently, the catching of low consumption, energy-conserving and environment-protective.
Description
Technical field
The utility model relates to iron and steel enterprise's steel-making converter secondary flue gas purification facility, relates in particular to a kind of novel air-curtain type converter secondary flue gas capturing device.
Background technology
As everyone knows, protection of the environment is the fundamental state policy that must adhere to for a long time, and under the brute force promotion of national policy and the supervision of public opinion, the environmental protection of Jun Dui plant area of each iron and steel enterprise is had higher requirement.
At present traditional air-curtain type converter secondary flue gas capturing device can not be efficiently, low consumption catch the flue gas producing in converter production process, caused to a certain extent the pollution of steelshop and atmospheric environment, the while has also consumed a large amount of energy.
In order to improve collection efficiency, generally adopt at present the method that improves system dust removing air quantity both at home and abroad.Although improved to a certain extent the collection efficiency of converter secondary flue gas, but raising systematic air flow, corresponding dust removal installation capacity must expand, and not only causes investment of equipment to increase, and also increase greatly of working cost, can not meet the related request that national energy-saving reduces discharging.At present, trapping converter secondary flue gas how efficient, low consumption has become a domestic and international ubiquitous difficult problem.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of novel air-curtain type converter secondary flue gas capturing device of efficient, low consumption.
The technical scheme that the utility model adopts is: a kind of novel air-curtain type converter secondary flue gas capturing device, it comprises and is separately positioned on the air curtain device of steel, slag transport passage both sides and is arranged on the fume trap cover in converter, described fume trap cover is communicated with outside cleaning shaft by induced exhaust, described fume trap cover, described air curtain device, described converter, is arranged on the iron ladle of described converter top and the space of a relative sealing of anti-smoke-box formation; It is indoor that described converter is placed in described Smoke prevention; Described air curtain device comprises the compressed air pipe that supplies being connected with external air source, and the described compressed air pipe that supplies is connected with the wall of steel, slag transport passage by support, and the described compressed air pipe that supplies is provided with a plurality of air-out apparatus.
Further, described fume trap cover comprises front panel, top board and rear panel, and described front panel, top board and rear panel are connected to form the hollow cell body that a below has opening in turn, and the two ends of hollow cell body are all connected with described airduct.
Further, the size of described front panel and rear panel can identical can be not identical yet, and for example the width of front panel and rear panel is identical, but the height of rear panel is higher than the height of front panel.
Further, described opening is over against the dispersal direction of described secondary flue gas.
Further, between described external air source and confession compressed air pipe, be provided with the pneumatic adjusting valve that regulates tolerance.
Further, described external air source adopts pressurized air or compressed nitrogen.
Further, the pipe connecting that described air-out apparatus comprises and supplies compressed air pipe to be connected, described pipe connecting is connected with nozzle by balljoint.
Further, described outside cleaning shaft is connected with extractor fan.
Through a large amount of research and practice, find, the air quantity that enters anti-smoke-box from steel, slag transport passage is very large, the reduction that this is serious the collection efficiency of fume trap cover.In steel, slag transport passage both sides, be provided with respectively a set of air curtain device, it can form twice air curtain, effectively regulate, reduce to enter from steel, slag transport passage the air quantity of anti-smoke-box, and form a relative airtight space with steel, slag transport passage, anti-smoke-box, thereby reduce to enter the wild air quantity of the fume trap cover that is arranged on converter top, this be conducive to fume trap cover before the not a large amount of diffusions of converter secondary flue gas by efficiently, the catching of low consumption.
Compressed air spraying amount in the utility model can regulate by pneumatic adjusting valve, forms a rational air intake air current composition and variable shock resistance in steel, slag transport passage.
The winding-up angle of nozzle can be carried out 360 ° of adjustment by balljoint, forms a rational air intake air current composition and variable shock resistance in steel, slag transport passage.
The beneficial effects of the utility model are: 1, simple in structure, convenient realization.2, can reduce the wild air quantity that enters the fume trap cover that is arranged on converter top, be conducive to fume trap cover before the not a large amount of diffusions of converter secondary flue gas by efficiently, the catching of low consumption, energy-conserving and environment-protective.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of the utility model.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the B-B sectional view of Fig. 1.
In figure: 1, steel, slag transport passage, 2, nozzle, 3, balljoint, 4, pipe connecting, 5, for compressed air pipe, 6, pneumatic adjusting valve, 7, support, 8, fume trap cover, 8-1, front panel, 8-2, top board, 8-3, rear panel, 9, anti-smoke-box, 10, induced exhaust, 11, crane, 12, iron ladle, 13, converter.
Embodiment
Below in conjunction with accompanying drawing, further illustrate embodiment of the present utility model.
Referring to Fig. 1-Fig. 3, a kind of novel air-curtain type converter secondary flue gas capturing device, it comprises and is separately positioned on the air curtain device of steel, slag transport passage 1 both sides and is arranged on the fume trap cover 8 in converter 13, described fume trap cover 8 is communicated with outside cleaning shaft by induced exhaust 10, and described outside cleaning shaft is connected with extractor fan; Described fume trap cover 8, described air curtain device, described converter 13, the iron ladle 12 that is arranged on described converter 13 tops and anti-smoke-box 9 form the space of a relative sealing; Described converter 13 is placed in described anti-smoke-box 9; Described air curtain device comprises the confession compressed air pipe 5 being connected with pressurized air, and the described compressed air pipe 5 that supplies is connected with the wall of steel, slag transport passage 1 by support 7, and the described compressed air pipe 5 that supplies is provided with a plurality of air-out apparatus; The pipe connecting 4 that described air-out apparatus comprises and is connected for compressed air pipe 5, described pipe connecting 4 passes through balljoint 3 and is connected with nozzle 2.
In the present embodiment, described fume trap cover 8 comprises front panel 8-1, top board 8-2 and rear panel 8-3, described front panel 8-1, top board 8-2 and rear panel 8-3 are connected to form the hollow cell body that a below has opening in turn, and the two ends of hollow cell body are all connected with described induced exhaust 10.
In order to reach better trapping effect, described front panel 8-1 and rear panel 8-3 are measure-alike, and described opening is over against the dispersal direction of described secondary flue gas.
For the dedusting air quantity of effective minimizing system, between described pressurized air and confession compressed air pipe 5, be provided with the pneumatic adjusting valve 6 that regulates tolerance.
While preparing hot metal charging, pneumatic adjusting valve 6 is in opened condition.
When the work of converter hot metal charging starts, converter 13 tilts to state in Fig. 1, iron ladle 12 under the effect of crane 11 near converter 13 start down molten iron, will a large amount of flue gas of generation in this process.The fume trap cover 8 that is now the arranged on converter top exhausting of starting working, now air curtain device can form twice air curtain, effectively regulate, reduce to enter from steel, slag transport passage 1 air quantity of anti-smoke-box 9, form a rational air intake air current composition and shock resistance, and form a relative airtight space with steel, slag transport passage 1, anti-smoke-box 9, can reduce like this to enter the wild air quantity of fume trap cover 8, can be before the not a large amount of diffusions of converter secondary flue gas by efficiently, the catching of low consumption.
When converter secondary fume tolerance reduces or do not have, pneumatic adjusting valve 6 is turned aperture down, saves energy consumption.
In the utility model, pneumatic adjusting valve 6 can be used for regulating the size of the formed shock resistance of air curtain simultaneously, is used for regulating the air current composition of whole secondary flue gas trapping system.Arranging of air curtain device produced almost not impact to converter.
Should be understood that above-described embodiment is only not used in the scope of restriction this patent for this patent is described.In addition should understand, after having read the content of this patent instruction, those skilled in the art can make various changes or modifications this patent, for example, the position of air curtain device and quantity can be adjusted, nozzle can change other forms of exhaust apparatus into, the quantity of nozzle can be adjusted, pressurized air can change the other forms of sources of the gas such as compressed nitrogen into, pneumatic adjusting valve can change the variable valve that other forms drive into, and these equivalent form of values fall within the application's appended claims limited range equally.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (7)
1. a novel air-curtain type converter secondary flue gas capturing device, it is characterized in that: it comprises and is separately positioned on the air curtain device of steel, slag transport passage both sides and is arranged on the fume trap cover in converter, described fume trap cover is communicated with outside cleaning shaft by induced exhaust, described fume trap cover, described air curtain device, described converter, is arranged on the iron ladle of described converter top and the space of a relative sealing of anti-smoke-box formation; It is indoor that described converter is placed in described Smoke prevention; Described air curtain device comprises the compressed air pipe that supplies being connected with external air source, and the described compressed air pipe that supplies is connected with the wall of steel, slag transport passage by support, and the described compressed air pipe that supplies is provided with a plurality of air-out apparatus.
2. novel air-curtain type converter secondary flue gas capturing device as claimed in claim 1, it is characterized in that: described fume trap cover comprises front panel, top board and rear panel, described front panel, top board and rear panel are connected to form the hollow cell body that a below has opening in turn, and the two ends of hollow cell body are all connected with described airduct.
3. novel air-curtain type converter secondary flue gas capturing device as claimed in claim 2, is characterized in that: described opening is over against the dispersal direction of described secondary flue gas.
4. novel air-curtain type converter secondary flue gas capturing device as claimed in claim 1, is characterized in that: between described external air source and confession compressed air pipe, be provided with the pneumatic adjusting valve that regulates tolerance.
5. the novel air-curtain type converter secondary flue gas capturing device as described in claim 1 or 4, is characterized in that: described external air source adopts pressurized air or compressed nitrogen.
6. novel air-curtain type converter secondary flue gas capturing device as claimed in claim 1, is characterized in that: the pipe connecting that described air-out apparatus comprises and supplies compressed air pipe to be connected, described pipe connecting is connected with nozzle by balljoint.
7. novel air-curtain type converter secondary flue gas capturing device as claimed in claim 1, is characterized in that: described outside cleaning shaft is connected with extractor fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420227900.5U CN203923250U (en) | 2014-05-06 | 2014-05-06 | Novel air-curtain type converter secondary flue gas capturing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420227900.5U CN203923250U (en) | 2014-05-06 | 2014-05-06 | Novel air-curtain type converter secondary flue gas capturing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203923250U true CN203923250U (en) | 2014-11-05 |
Family
ID=51819105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420227900.5U Expired - Lifetime CN203923250U (en) | 2014-05-06 | 2014-05-06 | Novel air-curtain type converter secondary flue gas capturing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203923250U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103993125A (en) * | 2014-05-06 | 2014-08-20 | 中冶南方工程技术有限公司 | Novel gas curtain type revolving furnace secondary flue gas capture device |
-
2014
- 2014-05-06 CN CN201420227900.5U patent/CN203923250U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103993125A (en) * | 2014-05-06 | 2014-08-20 | 中冶南方工程技术有限公司 | Novel gas curtain type revolving furnace secondary flue gas capture device |
| CN103993125B (en) * | 2014-05-06 | 2015-11-04 | 中冶南方工程技术有限公司 | Air-curtain type converter secondary flue gas capturing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141105 |
|
| CX01 | Expiry of patent term |