CN206204347U - A kind of coal gas of converter double tower cooling and purifying recovery system - Google Patents
A kind of coal gas of converter double tower cooling and purifying recovery system Download PDFInfo
- Publication number
- CN206204347U CN206204347U CN201621214984.4U CN201621214984U CN206204347U CN 206204347 U CN206204347 U CN 206204347U CN 201621214984 U CN201621214984 U CN 201621214984U CN 206204347 U CN206204347 U CN 206204347U
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- CN
- China
- Prior art keywords
- cooling tower
- cooling
- tower
- converter
- recovery system
- 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 - Fee Related
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- 238000001816 cooling Methods 0.000 title claims abstract description 56
- 239000003034 coal gas Substances 0.000 title claims abstract description 15
- 238000011084 recovery Methods 0.000 title claims abstract description 12
- 239000000428 dust Substances 0.000 claims abstract description 20
- 238000009628 steelmaking Methods 0.000 claims abstract description 15
- 239000003818 cinder Substances 0.000 claims abstract description 12
- 238000002309 gasification Methods 0.000 claims description 5
- 238000001704 evaporation Methods 0.000 abstract description 7
- 230000008020 evaporation Effects 0.000 abstract description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052742 iron Inorganic materials 0.000 abstract description 3
- 239000000779 smoke Substances 0.000 abstract description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 16
- 239000003546 flue gas Substances 0.000 description 16
- 239000007789 gas Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- 239000010865 sewage Substances 0.000 description 4
- 239000012717 electrostatic precipitator Substances 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- 230000008016 vaporization Effects 0.000 description 3
- 235000019504 cigarettes Nutrition 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 238000005108 dry cleaning Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 210000000867 larynx Anatomy 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 239000012716 precipitator Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 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
- Y02P10/20—Recycling
Landscapes
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model discloses a kind of coal gas of converter double tower cooling and purifying recovery system, the system includes the steelmaking converter, one-level wet cooling tower, two-stage evaporative cooling tower, bag dust device, blower fan, the switching war that are sequentially connected, the switching station point two-way output, it is connected with diffusing chimney all the way, another road is connected through heat exchanger with gas chamber, the two-stage evaporative cooling tower, the lower end of bag dust device are connected with fine ash storehouse, and the steelmaking converter, one-level wet cooling tower lower end are connected with cinder storehouse.The utility model is connected using double flash evaporation cooling tower, carry out after two-stage cooling, dedusting again through the further refined dedusting of sack cleaner, can thoroughly solve that purified gas dustiness is exceeded and the technical problem of discharge beyond standards in short-term, purifying smoke dustiness≤10mg/Nm3 occurs in iron making stage chimney.
Description
Technical field
The utility model belongs to metallurgical technology field, and in particular to a kind of coal gas of converter double tower cooling and purifying recovery system.
Background technology
In pneumatic steelmaking refining converting process, the substantial amounts of high-temperature flue gas containing CO and dust are supervened, not only can be to ring
Serious pollution is caused in border, and can cause substantial amounts of energy waste, it is therefore necessary to it is purified and is reclaimed.
Current China overwhelming majority converter dust-removing uses " OG " wet method and the dry-dedusting system represented with " LT ".
Traditional " OG " wet dedusting technology, is using unburned method twin-stage Venturi tube dust collecting process, by cooling water to cigarette
The washing of gas reaches the purpose of dedusting, there is its limitation：System automation controlled level is low, and coal-gas recovering amount is relatively low, after purification
Dust content of gas still reach 100mg/Nm3, after going out gas chamber, wet electrical dust precipitator dedusting again need to be carried out.Due to by water-bath, larynx
The process structures such as pipe portion position are set, and system resistance damages big, and energy consumption is larger.There are large amount of sewage, sludge to produce simultaneously, corresponding rule need to be equipped with
The sewage disposal system of mould.
Have that SR is small, stable, efficiency of dust collection is high, energy consumption is small with the dry-dedusting system that " LT " is representative,
Coal-gas recovering rate advantage high.But still there is distinct disadvantage：Electrostatic precipitator end electric field in dry cleaning recovery system is clear
The reentrainment of dust that ash is produced is taken away by purified gas again, causes purified gas dustiness exceeded.In the pneumatic steelmaking iron making stage, due to
The quenched dust removing effects of devaporizer are poor, make to enter electrostatic precipitator dust concentration is high, ratio resistance big, so as to cause electrostatic to remove
Dirt device efficiency of dust collection declines, and ultimately results in chimney and discharge beyond standards phenomenon in short-term occurs.At the same time, dry-dedusting system control system
It is also the major obstacle for hindering it to promote that system is complicated, cost is high.
Utility model content
In view of this, main purpose of the present utility model is to provide a kind of coal gas of converter double tower cooling and purifying to reclaim system
System.
To reach above-mentioned purpose, what the technical solution of the utility model was realized in：
The utility model embodiment provides a kind of coal gas of converter double tower cooling and purifying recovery system, and the system includes connecting successively
Steelmaking converter, one-level wet cooling tower, two-stage evaporative cooling tower, bag dust device, blower fan, the switching war, the switching station point for connecing
Two-way is exported, and is connected with diffusing chimney all the way, and another road is connected through heat exchanger with gas chamber, the two-stage evaporative cooling tower, cloth
The lower end of bag dirt device is connected with fine ash storehouse, and the steelmaking converter, one-level wet cooling tower lower end are connected with cinder storehouse.
In such scheme, connected by gasification cooling flue between the steelmaking converter, one-level wet cooling tower.
In such scheme, the one-level wet cooling tower, the bottom of two-stage evaporative cooling tower are provided with for defeated ash dress
Put.
In such scheme, the fine ash storehouse, cinder are provided with conveying device in storehouse.
Compared with prior art, the beneficial effects of the utility model：
The utility model is connected using double flash evaporation cooling tower, is entered through sack cleaner again after carrying out two-stage cooling, dedusting
One step refined dedusting, can thoroughly solve the exceeded technology for discharge beyond standards in short-term occur with iron making stage chimney of purified gas dustiness and ask
Topic, purifying smoke dustiness≤10mg/Nm3。
The utility model carries out dedusting to flue gas using double flash evaporation cooling tower, two grades of rough dedusting gross efficiencys up to .80% with
On, effectively reduce follow-up sack cleaner processing pressure.And one-level rough dedusting gained cinder can directly be returned through conveying device and turned
Stove is utilized, and effectively reduces the airborne dust that cinder transhipment is produced.
The utility model is lowered the temperature using double flash evaporation cooling tower to flue gas, and the temperature-fall period is dived using the vaporization of water
Heat realizes that water consumption is few, and is produced without sewage and sludge, without being equipped with water treatment system.
The utility model using double flash evaporation cooling tower series connection rough dedusting after again through sack cleaner refined dedusting gained clean coal
Gas is that may be recovered or diffuse, and system control is simple, and equipment manufacturing cost is cheap, and overall cost of ownership is low.
Brief description of the drawings
A kind of Fig. 1 structural representations of coal gas of converter double tower cooling and purifying recovery system for the utility model embodiment is provided
Figure.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and implementation
Example, is further elaborated to the utility model.It should be appreciated that specific embodiment described herein is only used to explain
The utility model, is not used to limit the utility model.
The utility model embodiment provides a kind of coal gas of converter double tower cooling and purifying recovery system, as shown in figure 1, the system
Including the steelmaking converter 1, one-level wet cooling tower 3, two-stage evaporative cooling tower 4, bag dust device 5, blower fan 6, the switching that are sequentially connected
War 7,7 points of two-way outputs of the switching station, is connected with diffusing chimney 8 all the way, and another road is connected through heat exchanger 9 with gas chamber 10,
The two-stage evaporative cooling tower 4, the lower end of bag dust device 5 are connected with fine ash storehouse 11, and the evaporation of the steelmaking converter 1, one-level is cold
But the lower end of tower 3 is connected with cinder storehouse 12.
Connected by gasification cooling flue 2 between the steelmaking converter 1, one-level wet cooling tower 3.
The high-temperature dust-containing flue gas produced during the oxygen furnace steel of the steelmaking converter 1（1400~1600℃）, it is cold by vaporizing
But flue 2, and heat exchange is carried out with the cooling water in gasification cooling flue 2, flue-gas temperature is down to 800 ~ 1000 DEG C.
High-temperature dust-containing flue gas after the cooling of the gasification cooling flue 2（About 800 ~ 1000 DEG C of temperature, dustiness 80~
150g/Nm3）, one-level rough dedusting and cooling are carried out into one-level wet cooling tower 3；Flue gas is by big after one-level wet cooling tower 3
The meal dirt that there are about 60% is deposited to bottom, and gained cinder is transported to cinder storehouse 12 by ash conveying device, in the cinder storehouse 12
Cinder returns to steelmaking converter 1 and recycles by conveying device.
Flue gas by one-level rough dedusting and cooling enters two-stage evaporative cooling tower 4, and more than 40% grit is deposited in flue gas
Bottom, gained fine ash is transported to the recycling of fine ash storehouse 11 by ash conveying device.
Flue gas after being purified through two-stage evaporative cooling tower 4（180 DEG C of temperature ＜）Removed into the further essence of sack cleaner 5
Dirt, the outlet dustiness≤10mg/Nm of the sack cleaner 53, through the flue gas of the udst separation of the sack cleaner 5, by wind
Machine 6 introduces switching station 7, and when the flue gas after purification meets recovering condition, flue gas delivers to heat exchanger by the valve of switching switching station 7
9 further coolings（70 DEG C of temperature ＜）, it is then sent through gas chamber 10 and stores；When the flue gas after purification does not meet recovering condition, cigarette
Gas is by the valve transfer of switching switching station 7 to diffusing chimney 8, ignition bleeding.
It is the system core that the series connection of double flash evaporation cooling tower is carried out into dedusting, cooling, and it instead of existing " LT " dry method skill
The partial action of electrostatic precipitator in art, by two-stage rough dedusting, removes more than 80% dust, while flue-gas temperature is down to
Less than 180 DEG C, then by the further refined dedusting of sack cleaner, sack cleaner is exported purified gas dustiness≤10mg/
Nm3.Compared with " LT " dry method, the utility model control is simple, and equipment manufacturing cost is relatively low, can be reached again while cost of investment is reduced
To preferable gas purification recovering effect, and meet environmental requirement.The utility model reduces flue gas using the latent heat of vaporization of water
Temperature, more traditional " OG " wet method, water consumption greatly reduces, and is produced without sewage, sludge, without being equipped with water treatment system.No matter
It is that " " OG " wet method compares, or compares with " LT " dry method, and the utility model all has a clear superiority, with wide with tradition
Popularizing application prospect.
The above, preferred embodiment only of the present utility model is not intended to limit protection of the present utility model
Scope.
Claims (4)
1. a kind of coal gas of converter double tower cooling and purifying recovery system, it is characterised in that the system includes that the steel-making being sequentially connected turns
Stove, one-level wet cooling tower, two-stage evaporative cooling tower, bag dust device, blower fan, switching war, the switching station point two-way output, one
Road is connected with diffusing chimney, and another road is connected through heat exchanger with gas chamber, the two-stage evaporative cooling tower, the lower end of bag dust device
It is connected with fine ash storehouse, the steelmaking converter, one-level wet cooling tower lower end are connected with cinder storehouse.
2. coal gas of converter double tower cooling and purifying recovery system according to claim 1, it is characterised in that：The steel-making turns
Connected by gasification cooling flue between stove, one-level wet cooling tower.
3. coal gas of converter double tower cooling and purifying recovery system according to claim 1 and 2, it is characterised in that：The one-level
Wet cooling tower, the bottom of two-stage evaporative cooling tower are provided with for ash conveying device.
4. coal gas of converter double tower cooling and purifying recovery system according to claim 3, it is characterised in that：The fine ash storehouse,
Cinder is provided with conveying device in storehouse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621214984.4U CN206204347U (en) | 2016-11-11 | 2016-11-11 | A kind of coal gas of converter double tower cooling and purifying recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621214984.4U CN206204347U (en) | 2016-11-11 | 2016-11-11 | A kind of coal gas of converter double tower cooling and purifying recovery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206204347U true CN206204347U (en) | 2017-05-31 |
Family
ID=58752345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621214984.4U Expired - Fee Related CN206204347U (en) | 2016-11-11 | 2016-11-11 | A kind of coal gas of converter double tower cooling and purifying recovery system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206204347U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107739771A (en) * | 2017-11-30 | 2018-02-27 | 北京瑞达宏信科技有限公司 | Coal gas of converter heat energy full-dry method purifying recovery method and its device |
| CN110241284A (en) * | 2019-07-24 | 2019-09-17 | 马鞍山钢铁股份有限公司 | A kind of flue gas particles of steelmaking converter purification system and purification method again |
| CN113684341A (en) * | 2021-08-17 | 2021-11-23 | 中冶东方工程技术有限公司 | System and method for purifying primary flue gas of converter |
| CN115491460A (en) * | 2022-10-17 | 2022-12-20 | 江苏中碳节能技术有限公司 | Converter flue gas treatment system and treatment method |
-
2016
- 2016-11-11 CN CN201621214984.4U patent/CN206204347U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107739771A (en) * | 2017-11-30 | 2018-02-27 | 北京瑞达宏信科技有限公司 | Coal gas of converter heat energy full-dry method purifying recovery method and its device |
| CN110241284A (en) * | 2019-07-24 | 2019-09-17 | 马鞍山钢铁股份有限公司 | A kind of flue gas particles of steelmaking converter purification system and purification method again |
| CN113684341A (en) * | 2021-08-17 | 2021-11-23 | 中冶东方工程技术有限公司 | System and method for purifying primary flue gas of converter |
| CN115491460A (en) * | 2022-10-17 | 2022-12-20 | 江苏中碳节能技术有限公司 | Converter flue gas treatment system and treatment method |
| CN115491460B (en) * | 2022-10-17 | 2024-06-07 | 江苏华和能科技术有限公司 | Converter flue gas treatment system and treatment method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20170531 |