CN203128610U - Air-curtain dust removal device for secondary flue gas of converter - Google Patents
Air-curtain dust removal device for secondary flue gas of converter Download PDFInfo
- Publication number
- CN203128610U CN203128610U CN 201320040202 CN201320040202U CN203128610U CN 203128610 U CN203128610 U CN 203128610U CN 201320040202 CN201320040202 CN 201320040202 CN 201320040202 U CN201320040202 U CN 201320040202U CN 203128610 U CN203128610 U CN 203128610U
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- converter
- flue gas
- dust removal
- secondary flue
- air
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Abstract
The utility model relates to secondary flue gas dust removal device for converter steel smelting of iron and steel enterprises and particularly relates to an air-curtain dust removal device for secondary flue gas of a converter. The air-curtain dust removal device comprises a dust collection hood and a converter, wherein the dust collection hood is located above the converter. The air-curtain dust removal device is characterized by further comprising 8-20 spraying devices (the specific number of the spraying devices is determined according to the size of the converter), wherein the spraying devices are uniformly distributed at the middle of the dust collection hood along the horizontal direction; and the spraying devices comprise connecting pipes, nozzles and a compressed air through pipe, wherein the nozzles are arranged at the front ends of the connecting pipes, and the rear ends of the connecting pipes are communicated with the compressed air through pipe. The air-curtain dust removal device for the secondary flue gas of the converter has the advantages that the secondary flue gas trapping ratio is high and the change to the original dust removal system is little.
Description
Technical field
The utility model relates to the cleaning apparatus of secondary flue gas in iron and steel enterprise's converter steelmaking, especially relates to a kind of converter secondary flue gas air curtain cleaning apparatus.
Background technology
The converter of iron and steel enterprise is at hot metal charging, can produce a large amount of secondary flue gas when adding technological operations such as steel scrap, blowing, tapping, the flue gas that produces during wherein with hot metal charging serves as at most (along with the increase of outsourcing steel scrap ratio, organism decomposes during hot metal charging in the steel scrap is acutely burnt at fire door).In the actual production process, the domestic and international excessive phenomenon of flue gas during iron and steel enterprise's ubiquity converter hot metal charging, volume of smoke disperse even are overflowed factory building by roofing ventilation dormer in the workshop, surrounding environment is caused very big pollution, seriously influenced the safety of producing and having threatened personnel.
At present, common terms of settlement is to improve effective capture rate of flue gas by the rational Match of fan delivery and stokehold dust gathering arrester, but still has the partial fume loss.Enterprise with good conditionsi can also set up converter third dedusting system and capture the flue gas that the secondary flue gas dust excluding hood can't catch.The weak point of these methods is to need original dust-removal system is carried out bigger change, once invests the amount height, and the transformation cycle is longer.
Summary of the invention
The purpose of this utility model is to provide a kind of capture rate height to secondary flue gas, the converter secondary flue gas air curtain cleaning apparatus little to the change of original dust-removal system.
For achieving the above object, technical scheme provided by the utility model is: a kind of converter secondary flue gas air curtain cleaning apparatus, it comprises dust gathering arrester and converter, dust gathering arrester is positioned at the top of converter, it is characterized in that: it also comprises (described a plurality of 8-20 of being of a plurality of spraying plants, concrete number is determined according to the size of converter), a plurality of spraying plant along continuous straight runs are evenly distributed on the middle place of dust gathering arrester; Described spraying plant comprises pipe connecting, nozzle and logical compressed air pipe, and the front end of pipe connecting is provided with nozzle, and the rear end of pipe connecting is connected with logical compressed air pipe.
Described spraying plant is 14, and the distance between adjacent two spraying plants is distance between nozzle 4 and the nozzle 4 for 500-600mm(); The pressure of the pressurized air that feeds in the spraying plant (or nitrogen or both mixed gass) is 0.4-0.6Mpa.
The beneficial effects of the utility model are:
1) spraying plant of the present utility model can form one the air curtain barrier fast above the converter stokehold, stops the hot flue gas of loss to rise, and forms airtight relatively environment, guarantees that flue gas is taken away smoothly from the dust gathering arrester opening part; This device is to the capture rate height of secondary flue gas, little to the change of original dust-removal system;
2) adopt the utility model safe and reliable, owing to adopt pressurized air or nitrogen as working medium, do not have the potentially dangerous that mechanical water sets off an explosion;
3) adopt the utility model simple in structure, use hardly original system is changed, thereby reduced less investment, shortened the transformation cycle.
Description of drawings
Fig. 1 is the structural representation of the utility model converter secondary flue gas air curtain cleaning apparatus.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the structural representation of the spraying plant of the utility model converter secondary flue gas air curtain cleaning apparatus.
Fig. 4 is the enforcement synoptic diagram of the utility model converter secondary flue gas air curtain cleaning apparatus.
Among the figure: 1-dust gathering arrester, 2-converter, 3-pipe connecting, 4-nozzle, the logical compressed air pipe of 5-, 6-iron ladle.
Embodiment
In order to understand the utility model better, below in conjunction with embodiment and accompanying drawing the technical solution of the utility model is described further.
Converter secondary flue gas air curtain cleaning apparatus (as depicted in figs. 1 and 2), it comprises dust gathering arrester 1 and converter 2, dust gathering arrester 1 is positioned at the top of converter 2, it also comprises (described a plurality of 8-20 of being of a plurality of spraying plants, concrete number is determined according to the size of converter 2), a plurality of spraying plant along continuous straight runs are evenly distributed on the middle place of dust gathering arrester 1; Described spraying plant (as shown in Figure 3) comprises pipe connecting 3, nozzle 4 and logical compressed air pipe 5, and the front end of pipe connecting 3 is provided with nozzle 4, and the rear end of pipe connecting 3 is connected with logical compressed air pipe 5.
Described spraying plant is 14, and the distance between adjacent two spraying plants is distance between nozzle 4 and the nozzle 4 for 500-600mm(); The pressure of the pressurized air that feeds in the spraying plant (or nitrogen or both mixed gass) is 0.4-0.6Mpa.
As can be known, (being last the place ahead of converter 2) dust gathering arrester 1 top along continuous straight runs is arranged row's spraying plant in converter 2 stokeholds from Fig. 1 and Fig. 4, and spraying plant arranges that should not hinder crane to pass through opens and closes with stokehold retaining vent.Nozzle 4 links to each other with pipe connecting 3, and the two is welded into a whole.Pipe connecting 3 is steel pipe, and diameter is DN25, and pipe connecting 3 can be straight tube or bend pipe.
As shown in Figure 4, after iron ladle 6 begins to converter 2 hot metal chargings, feed pressurized air, the high speed air curtain that nozzle 4 ejects, can form together invisible barrier above converter 2 stokeholds fast, the flue gas flow that produces in the time of can be with hot metal charging all covers, and blocks its rising loss passage, form airtight relatively environment, guarantee that flue gas is taken away smoothly from dust gathering arrester 1 opening part.
Protection domain of the present utility model is not limited to the above embodiments, and obviously, those skilled in the art can carry out various changes and distortion and not break away from scope and spirit of the present utility model the utility model.If these changes and distortion belong in the scope of the utility model claim and equivalent technologies thereof, then intention of the present utility model also comprises these changes and is out of shape interior.
Claims (2)
1. converter secondary flue gas air curtain cleaning apparatus, it comprises dust gathering arrester (1) and converter (2), dust gathering arrester (1) is positioned at the top of converter (2), it is characterized in that: it also comprises a plurality of spraying plants, and a plurality of spraying plant along continuous straight runs are evenly distributed on the middle place of dust gathering arrester (1); Described spraying plant comprises pipe connecting (3), nozzle (4) and logical compressed air pipe (5), and the front end of pipe connecting (3) is provided with nozzle (4), and the rear end of pipe connecting (3) is connected with logical compressed air pipe (5).
2. converter secondary flue gas air curtain cleaning apparatus according to claim 1, it is characterized in that: described spraying plant is 14, the distance between adjacent two spraying plants is 500-600mm; The compressed-air actuated pressure that feeds in the spraying plant is 0.4-0.6Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320040202 CN203128610U (en) | 2013-01-25 | 2013-01-25 | Air-curtain dust removal device for secondary flue gas of converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320040202 CN203128610U (en) | 2013-01-25 | 2013-01-25 | Air-curtain dust removal device for secondary flue gas of converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203128610U true CN203128610U (en) | 2013-08-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320040202 Expired - Fee Related CN203128610U (en) | 2013-01-25 | 2013-01-25 | Air-curtain dust removal device for secondary flue gas of converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203128610U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103602778A (en) * | 2013-10-23 | 2014-02-26 | 首钢京唐钢铁联合有限责任公司 | Converter stokehole stove iron ladle spraying dust suppression device |
| CN103866080A (en) * | 2014-01-13 | 2014-06-18 | 中冶南方工程技术有限公司 | Secondary smoke trapping device for buffering type rotary furnace |
| CN103981327A (en) * | 2014-05-06 | 2014-08-13 | 中冶南方工程技术有限公司 | Novel double-air port buffering type secondary flue gas gathering apparatus for converter |
| CN103981325A (en) * | 2014-05-06 | 2014-08-13 | 中冶南方工程技术有限公司 | Novel sucking-and-blowing type secondary flue gas gathering apparatus for converter |
| 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 |
| CN110819758A (en) * | 2019-11-12 | 2020-02-21 | 中冶京诚工程技术有限公司 | Combined converter tertiary dust collecting device and converter steelmaking system |
-
2013
- 2013-01-25 CN CN 201320040202 patent/CN203128610U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103602778A (en) * | 2013-10-23 | 2014-02-26 | 首钢京唐钢铁联合有限责任公司 | Converter stokehole stove iron ladle spraying dust suppression device |
| CN103602778B (en) * | 2013-10-23 | 2015-09-23 | 首钢京唐钢铁联合有限责任公司 | Iron bag spray dust-arrest device before a kind of Converter |
| CN103866080A (en) * | 2014-01-13 | 2014-06-18 | 中冶南方工程技术有限公司 | Secondary smoke trapping device for buffering type rotary furnace |
| CN103866080B (en) * | 2014-01-13 | 2015-07-01 | 中冶南方工程技术有限公司 | Secondary smoke trapping device for buffering type rotary furnace |
| CN103981327A (en) * | 2014-05-06 | 2014-08-13 | 中冶南方工程技术有限公司 | Novel double-air port buffering type secondary flue gas gathering apparatus for converter |
| CN103981325A (en) * | 2014-05-06 | 2014-08-13 | 中冶南方工程技术有限公司 | Novel sucking-and-blowing type secondary flue gas gathering apparatus for converter |
| 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 |
| CN103981325B (en) * | 2014-05-06 | 2015-11-11 | 中冶南方工程技术有限公司 | Blowing and drawing type converter secondary flue gas capturing device |
| CN110819758A (en) * | 2019-11-12 | 2020-02-21 | 中冶京诚工程技术有限公司 | Combined converter tertiary dust collecting device and converter steelmaking system |
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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: 20130814 Termination date: 20170125 |