CN203128609U - Spray dust removal device for secondary flue gas of converter - Google Patents
Spray dust removal device for secondary flue gas of converter Download PDFInfo
- Publication number
- CN203128609U CN203128609U CN2013200402000U CN201320040200U CN203128609U CN 203128609 U CN203128609 U CN 203128609U CN 2013200402000 U CN2013200402000 U CN 2013200402000U CN 201320040200 U CN201320040200 U CN 201320040200U CN 203128609 U CN203128609 U CN 203128609U
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- China
- Prior art keywords
- converter
- flue gas
- pipe
- secondary flue
- dust removal
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- 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
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- Carbon Steel Or Casting Steel Manufacturing (AREA)
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 a spray dust removal device for secondary flue gas of a converter. The spray dust removal device comprises a dust collection hood and a converter, wherein the dust collection hood is located above the converter. The spray 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, a water through pipe 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 water through pipe and the compressed air through pipe. The spray 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 spray dust remover.
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 spray dust remover 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 spray dust remover, 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, water service pipe 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 water service pipe and 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 pressurized air that feeds in the spraying plant and the pressure of water are 0.4-0.6Mpa, the atomized water grain diameter≤0.04mm of ejection.
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, stop the hot flue gas of loss to rise, a large amount of fine particle waters contact back generation thermal exchange in the aerosol with flue gas, aerosol itself can adsorb removes most of loss smoke particle, and flue gas is lowered the temperature and purification; 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 can realize high-temperature flue gas quick cooling in short-term, volume greatly shrinks, thereby reduces the final dusting systematic air flow, reduces system's operation energy consumption cost, thereby reaches the purpose of energy-saving and emission-reduction;
3) adopt the utility model safe and reliable, because the nozzle atomization performance is good, the atomized water particle contacts all vaporizations of back with high-temperature flue gas, do not have the potentially dangerous that mechanical water sets off an explosion;
4) 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 spray dust remover.
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 spray dust remover.
Fig. 4 is the enforcement synoptic diagram of the utility model converter secondary flue gas spray dust remover.
Among the figure: 1-dust gathering arrester, 2-converter, 3-pipe connecting, 4-nozzle, 5-water service pipe, the logical compressed air pipe of 6-, 7-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 spray dust remover (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, water service pipe 5 and logical compressed air pipe 6, and the front end of pipe connecting 3 is provided with nozzle 4, and the rear end of pipe connecting 3 is connected with water service pipe 5 and logical compressed air pipe 6.
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 pressurized air that feeds in the spraying plant and the pressure of water are 0.4-0.6Mpa, the atomized water grain diameter≤0.04mm of ejection.
As can be known, (being last the place ahead of converter 2) dust gathering arrester 1 top along continuous straight runs is arranged a fog discharge spraying plant in converter 2 stokeholds from Fig. 1 and Fig. 4, and spraying plant is arranged should not hinder the current and stokehold retaining vent switching of crane.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 7 begins to converter 2 hot metal chargings, pressurized air is mixed the back introduce nozzle 4 with water by pipe connecting 3, wherein most of flue dust is removed in the isolated hot flue gas rising passway of loss of the high speed aerosol that nozzle 4 ejects and absorption.Respond well for guaranteeing the water atomization of spraying when using device of the present utility model, pressurized air and water pressure are 0.4～0.6MPa, atomized water grain diameter≤4o μ m.
The technical solution of the utility model is that along continuous straight runs is arranged row's spraying plant on converter 2 stokehold dust gathering arresters 1, spraying plant during hot metal charging above the stokehold sprays the high speed aerosol, it is little to contain a large amount of particle diameters in this aerosol, speed is fast, the particle water that kinetic energy is big, when particle water with after flue gas contacts, at first absorbing flue gas heat is cooled to flue gas below the close dew temperature, bump with the dust in flue gas particle then, bonding, grow up, grow up when particle diameter and will separate with flue gas under the action of gravity and be deposited on the platform of stokehold to a certain degree the time, thereby play flue gas cool-down and purify the effect that captures, and finally reach the purpose of improving workshop condition.
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 (3)
1. converter secondary flue gas spray dust remover, 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).
2. converter secondary flue gas spray dust remover according to claim 1, it is characterized in that: described spraying plant comprises pipe connecting (3), nozzle (4), water service pipe (5) and logical compressed air pipe (6), the front end of pipe connecting (3) is provided with nozzle (4), and the rear end of pipe connecting (3) is connected with water service pipe (5) and logical compressed air pipe (6).
3. converter secondary flue gas spray dust remover 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 pressurized air that feeds in the spraying plant and the pressure of water are 0.4-0.6Mpa, the atomized water grain diameter≤0.04mm of ejection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200402000U CN203128609U (en) | 2013-01-25 | 2013-01-25 | Spray dust removal device for secondary flue gas of converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200402000U CN203128609U (en) | 2013-01-25 | 2013-01-25 | Spray dust removal device for secondary flue gas of converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203128609U true CN203128609U (en) | 2013-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200402000U Expired - Fee Related CN203128609U (en) | 2013-01-25 | 2013-01-25 | Spray dust removal device for secondary flue gas of converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203128609U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN114951631A (en) * | 2022-05-07 | 2022-08-30 | 广东韶钢松山股份有限公司 | Ladle hot repair dust removal device and ladle hot repair dust removal method |
-
2013
- 2013-01-25 CN CN2013200402000U patent/CN203128609U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN114951631A (en) * | 2022-05-07 | 2022-08-30 | 广东韶钢松山股份有限公司 | Ladle hot repair dust removal device and ladle hot repair dust removal method |
| CN114951631B (en) * | 2022-05-07 | 2024-02-06 | 广东韶钢松山股份有限公司 | Ladle hot repair dust removal device and ladle hot repair dust removal 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: 20130814 Termination date: 20170125 |