CN209555279U - A kind of blast-furnace gas alkali spraying dechlorination temperature reduction technology device - Google Patents
A kind of blast-furnace gas alkali spraying dechlorination temperature reduction technology device Download PDFInfo
- Publication number
- CN209555279U CN209555279U CN201822146910.7U CN201822146910U CN209555279U CN 209555279 U CN209555279 U CN 209555279U CN 201822146910 U CN201822146910 U CN 201822146910U CN 209555279 U CN209555279 U CN 209555279U
- Authority
- CN
- China
- Prior art keywords
- spraying
- double
- blast
- gas
- furnace gas
- 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.)
- Active
Links
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model discloses a kind of blast-furnace gas alkali spraying dechlorination temperature reduction technology devices, are made of wet cooling tower ontology (1), spraying system (2), air supply system (3), liquid-supplying system (4), PLC controller (5)；Air supply system (3) provides gas source to spraying system (2)；Liquid-supplying system (4) conveys lye to spraying system (2)；The double-current atomizer (10) of spraying system (2) sprays alkaline water mist in wet cooling tower ontology (1)；PLC controller (5) controls the spouting liquid of double-current atomizer (10).The utility model high degree of automation can be realized the automatic adjustment of spray alkali dechlorination cooling device, reduce the personnel to operate.The CL ion inside blast furnace gas is effectively eliminated, CL ion is avoided to encounter the condensed water in coal gas, forms hydrochloric acid, corrosion pipeline.Lye is sprayed using double-flow spray gun, lye dosage can be reduced, reduce the device operating cost.
Description
Technical field
The utility model relates to a kind of blast-furnace gas alkali spraying dechlorination temperature reduction technology devices, and being particularly used for field of metallurgy prevents
Blast furnace gas pipeline network and its a kind of process unit of auxiliary device corrosion.
Background technique
Traditional dedusting of blast furnace gas purification process uses wet dedusting, passes through the CI- in blast furnace gas after wet dedusting
The equal acid ions overwhelming majority is only absorbed by the water.Since the water of spray is big, sewage PH value reaches 6 or more, CI- concentration < 300mg/
L, most of acid medium can drain in wet dedusting.Therefore, gas piping and its auxiliary device be not after wet dedusting
It is influenced by acid ion, is not also constituted serious corrosion.After blast furnace gas uses dry method dust, because eliminating wet dedusting
Middle Venturi tube or scrubbing tower are to the dissolution removal process of sour gas in coal gas, and blast furnace raw material is more and more uses import
Mine, content of Cl element is generally higher than domestic ore in import resources especially Australia's mine, causes the C 1 content in blast furnace gas higher,
The important background condition of this namely large blast furnace dry-dedusting system seriously corroded, causes blast furnace gas dry dusting system to go out
The coal gas of mouth contains a large amount of acid medium, and flows into next procedure with coal gas, as coal gas cooling, moisture content are precipitated
And enter condensed water, the acid waste water of highly corrosive is formed, heavy corrosion is caused to gaspipe network and its affiliated facility.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of blast-furnace gas alkali spraying dechlorination temperature reduction technology device,
It is made of wet cooling tower ontology, spraying system, air supply system, liquid-supplying system, PLC controller；Air supply system is to spraying system
Gas source is provided；Liquid-supplying system conveys lye to spraying system；The double-current atomizer of spraying system is in wet cooling tower ontology
Spray alkaline water mist；PLC controller controls the spouting liquid of double-current atomizer.
Further, wet cooling tower ontology includes ash bucket, and ash bucket side sets inlet pipeline, shell, shell are set on ash bucket
On set outlet conduit；PH value detection device and gas temperature detection device are set on outlet conduit.
Further, spraying system includes Liqiud-gas mixing device and double-flow spray gun, and double-flow spray gun is equipped with double fluid atomization spray
Mouth, double-current atomizer are multiple；Double-current atomizer is located at the body centre of wet cooling tower ontology.
Further, air supply system includes air accumulator, filter is set on air accumulator, filter is by nitrogen pipeline and by spraying
System connection；Flow monitor, electric flow control valve and pressure are successively set on nitrogen pipeline between filter and spraying system
Force detector.
Further, liquid-supplying system includes lye pump, and the input terminal of lye pump is connect by nitrogen pipeline with alkali liquid tank, alkali
The output end of liquid pump is connect by nitrogen pipeline with spraying system；It is successively set on nitrogen pipeline between lye pump and spraying system
Same flow monitor, electric flow control valve and pressure detector.
Further, the pH value detection device and gas temperature of PLC controller and wet cooling tower ontology inlet and outlet detect
Device electrical connection, is electrically connected with the flow monitor of air supply system and liquid-supplying system, electric flow control valve and pressure detector.
The utility model high degree of automation can be realized the automatic adjustment of spray alkali dechlorination cooling device, reduce personnel behaviour
Make.The CL- ion inside blast furnace gas is effectively eliminated, CL- ion is avoided to encounter the condensed water in coal gas, forms hydrochloric acid, corrosion
Pipeline.Lye is sprayed using double-flow spray gun, lye dosage can be reduced, reduce the device operating cost.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model.
In figure, 1. wet cooling tower ontologies, 2. spraying systems, 3. air supply systems, 4. liquid-supplying systems, 5. PLC control
Device, 6. ash buckets, 7. inlet pipelines, 8. shells, 9. outlet conduits, 10. double-current atomizers, 11. air accumulators, 12. mistakes
Filter, 13. nitrogen pipelines, 14. electric flow control valves, 15. flow monitors, 16. pressure detectors, 17. lye
Pump, 18. alkali liquid tanks, 19. double-flow spray guns, 20. Liqiud-gas mixing devices.
Specific embodiment
As shown in Figure 1, a kind of blast-furnace gas alkali spraying dechlorination temperature reduction technology device, by wet cooling tower ontology 1, spraying system
2, air supply system 3, liquid-supplying system 4, PLC controller 5 form；Air supply system 3 provides gas source to spraying system 2；Liquid-supplying system 4 is given
Spraying system 2 conveys lye；The double-current atomizer 10 of spraying system 2 sprays alkaline water mist in wet cooling tower ontology 1；
PLC controller 5 controls the spouting liquid of double-current atomizer 10.
Wet cooling tower ontology 1 includes ash bucket 6, and 6 side of ash bucket sets inlet pipeline 7, sets shell 8 on ash bucket 6, on shell 8
If outlet conduit 9；PH value detection device and gas temperature detection device are set on outlet conduit 9.
Spraying system 2 includes Liqiud-gas mixing device 20 and double-flow spray gun 19, and double-flow spray gun 19 is equipped with double-current atomizer
10, double-current atomizer 10 is multiple.Double-current atomizer 10 passes through shell 8, is located in the cylinder of wet cooling tower ontology 1
The heart.
Air supply system 3 includes air accumulator 11, and filter 12 is set on air accumulator 11, and filter 12 passes through nitrogen pipeline 13 and spray
Mist system 2 connects；Flow monitor 15, electric flow are successively set on nitrogen pipeline 13 between filter 12 and spraying system 2
Regulating valve 14 and pressure detector 16.
Liquid-supplying system 4 includes lye pump 17, and the input terminal of lye pump 17 is connect by nitrogen pipeline 13 with alkali liquid tank 18, alkali
The output end of liquid pump 17 is connect by nitrogen pipeline 13 with spraying system 2；Nitrogen pipeline between lye pump 17 and spraying system 2
Same flow monitor 15, electric flow control valve 14 and pressure detector 16 are successively set on 13.The nitrogen storage of air supply system 3
There are the stabilizations of gas source and flow amount and pressure that spraying system 2 in air accumulator 11, is supplied with guarantee.
The pH value detection device and gas temperature detection device that PLC controller 5 is imported and exported with wet cooling tower ontology 1 are electrically connected
It connects, is electrically connected with the flow monitor 15 of air supply system 3 and liquid-supplying system 4, electric flow control valve 14 and pressure detector 16.
Raw gas temperature into wet cooling tower ontology 1 is generally 150 DEG C -220 DEG C, and air-flow moves from bottom to top；And
It is mist particles by the lye that the multiple double-current atomizers 10 of spraying system spray, encounters coal gas of high temperature evaporating completely into alkaline mist
Gas moves from up to down；Two media comes into full contact with, and neutralization reaction occurs, and the acid CL- particle in coal gas is removed.Together
When, PLC controller 5 is adjusted after receiving the pH value and temperature signal of wet cooling tower exit feedback by adjusting electric flow
14 aperture of valve controls 10 spouting liquid of double-current atomizer, guarantees that 1 temperature of exit gas of wet cooling tower ontology is higher than dew point of gas
15 DEG C of temperature or more, to guarantee the normal table operation of blast furnace gas dry bag-type dust removing system.
Claims (6)
1. a kind of blast-furnace gas alkali spraying dechlorination temperature reduction technology device, it is characterised in that: by wet cooling tower ontology (1), spraying system
It unites (2), air supply system (3), liquid-supplying system (4), PLC controller (5) composition；Air supply system (3) provides gas to spraying system (2)
Source；Liquid-supplying system (4) conveys lye to spraying system (2)；The double-current atomizer (10) of spraying system (2) is in wet cooling tower
Alkaline water mist is sprayed in ontology (1)；PLC controller (5) controls the spouting liquid of double-current atomizer (10).
2. a kind of blast-furnace gas alkali spraying dechlorination temperature reduction technology device described in accordance with the claim 1, it is characterised in that: the evaporation
Cooling tower ontology (1) includes ash bucket (6), and ash bucket (6) side sets inlet pipeline (7), sets on ash bucket (6) shell (8), shell (8)
On set outlet conduit (9)；PH value detection device and gas temperature detection device are set on outlet conduit (9).
3. a kind of blast-furnace gas alkali spraying dechlorination temperature reduction technology device described in accordance with the claim 1, it is characterised in that: described spraying
System (2) includes Liqiud-gas mixing device (20) and double-flow spray gun (19), and double-flow spray gun (19) is equipped with double-current atomizer (10),
Double-current atomizer (10) is multiple；Double-current atomizer (10) is located at the body centre of wet cooling tower ontology (1).
4. a kind of blast-furnace gas alkali spraying dechlorination temperature reduction technology device described in accordance with the claim 1, it is characterised in that: the gas supply
System (3) includes air accumulator (11), is set on air accumulator (11) filter (12), and filter (12) passes through nitrogen pipeline (13) and spray
Mist system (2) connection；Flow monitor is successively set on nitrogen pipeline (13) between filter (12) and spraying system (2)
(15), electric flow control valve (14) and pressure detector (16).
5. a kind of blast-furnace gas alkali spraying dechlorination temperature reduction technology device described in accordance with the claim 1, it is characterised in that: the feed flow
System (4) includes lye pump (17), and the input terminal of lye pump (17) is connect by nitrogen pipeline (13) with alkali liquid tank (18), lye
The output end of pump (17) is connect by nitrogen pipeline (13) with spraying system (2)；Between lye pump (17) and spraying system (2)
Same flow monitor (15), electric flow control valve (14) and pressure detector (16) are successively set on nitrogen pipeline (13).
6. a kind of blast-furnace gas alkali spraying dechlorination temperature reduction technology device described in accordance with the claim 1, it is characterised in that: the PLC
The pH value detection device and gas temperature detection device that controller (5) and wet cooling tower ontology (1) are imported and exported are electrically connected, with confession
The flow monitor (15) of gas system (3) and liquid-supplying system (4), electric flow control valve (14) and pressure detector (16) are electrically connected
It connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822146910.7U CN209555279U (en) | 2018-12-20 | 2018-12-20 | A kind of blast-furnace gas alkali spraying dechlorination temperature reduction technology device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822146910.7U CN209555279U (en) | 2018-12-20 | 2018-12-20 | A kind of blast-furnace gas alkali spraying dechlorination temperature reduction technology device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209555279U true CN209555279U (en) | 2019-10-29 |
Family
ID=68303223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822146910.7U Active CN209555279U (en) | 2018-12-20 | 2018-12-20 | A kind of blast-furnace gas alkali spraying dechlorination temperature reduction technology device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209555279U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114292673A (en) * | 2021-12-29 | 2022-04-08 | 北京北科环境工程有限公司 | Blast furnace gas wet pervaporation dechlorination method and dechlorination device |
-
2018
- 2018-12-20 CN CN201822146910.7U patent/CN209555279U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114292673A (en) * | 2021-12-29 | 2022-04-08 | 北京北科环境工程有限公司 | Blast furnace gas wet pervaporation dechlorination method and dechlorination device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100493669C (en) | Smoke gas purification dust removing device and the technique thereof | |
| CN110452744A (en) | Blast furnace coal gas comprehensive management of environmental protection system and technique | |
| CN108640188B (en) | Bypass flue gas flow spray drying desulfurization wastewater treatment device and method | |
| CN109399747B (en) | Spray gun and flue evaporation device suitable for desulfurization waste water | |
| CN215388654U (en) | Blast furnace gas purification device | |
| CN209555279U (en) | A kind of blast-furnace gas alkali spraying dechlorination temperature reduction technology device | |
| CN203771434U (en) | WFGD (wet flue gas desulfurization) wastewater treatment equipment | |
| CN101928608B (en) | Blast-furnace gas hydrogen chloride purifying and absorbing compound device and method | |
| CN102276098A (en) | Treatment equipment and treatment method of coal gas desulfurization liquid | |
| CN106076643A (en) | A kind of regular polygon honeycomb fashion wet dust collection pole plate cleans device | |
| CN207913978U (en) | Self-cleaning double fluid atomizing lance | |
| CN210237551U (en) | Blast furnace gas desulfurizing tower | |
| CN204017657U (en) | A kind of sintering device flue gas wet desulphurization equipment | |
| CN206814422U (en) | A kind of desulfurization fume evaporates Zero discharging system | |
| CN210206425U (en) | Flue temperature reduction deacidification system | |
| CN210699444U (en) | Modularization blast furnace gas dechlorination device | |
| CN204503392U (en) | For the medicament mixing aerosol spray device of dust treatment | |
| CN105352358B (en) | Multipoint Uniform jet atomization device | |
| CN201260934Y (en) | Sulfuric dioxide flue gas chiller | |
| CN103055638A (en) | High-effect cross flow washing pool | |
| CN211676930U (en) | Combined micron-sized dry fog dust-settling purification device | |
| CN208177143U (en) | The pre-processing device of two-fluid spray cooling depositing dust deacidification | |
| CN208449637U (en) | A kind of high salty organic waste liquid rectangular coil spring nozzle | |
| CN207713439U (en) | A kind of more segmentation smoke chamber desulfurization wastewater zero-emission total systems | |
| CN205199259U (en) | Regeneration gas low temperature conveying system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |