CN208366101U - A kind of tube furnace flue gas desulfurization and denitrification system - Google Patents
A kind of tube furnace flue gas desulfurization and denitrification system Download PDFInfo
- Publication number
- CN208366101U CN208366101U CN201821087841.0U CN201821087841U CN208366101U CN 208366101 U CN208366101 U CN 208366101U CN 201821087841 U CN201821087841 U CN 201821087841U CN 208366101 U CN208366101 U CN 208366101U
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- CN
- China
- Prior art keywords
- tube furnace
- flue
- coke oven
- flue gas
- feed channel
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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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- Treating Waste Gases (AREA)
Abstract
The utility model relates to a kind of tube furnace flue gas desulfurization and denitrification systems, belong to coking process tube furnace equipment technical field.Technical solution is: the top of tube furnace (1) is equipped with diffusion valve (2), one end of tube furnace flue gas duct (5) is connected on the flue of tube furnace (1), the other end of tube furnace flue gas duct (5) is connected on coke oven flue feed channel (4), on the flue of one end connection coke oven of the coke oven flue feed channel (4), the other end of coke oven flue feed channel (4) is connect with the smoke inlet of desulfurizing tower (6), the exhanst gas outlet of desulfurizing tower (6) is connect with the smoke inlet of denitrating tower (7), the exhanst gas outlet of denitrating tower (7) is connected to by waste-heat recovery device (8) and air-introduced machine (9) with coke oven chimney (10).The beneficial effects of the utility model are: having reached the discharge standard of " coking chemistry emission of industrial pollutants standard ", and the fume afterheat part of tube furnace is recycled, and energy consumption is reduced.
Description
Technical field
The utility model relates to a kind of tube furnace flue gas desulfurization and denitrification systems, belong to metallurgy industry coking process tube furnace and set
Standby technical field.
Background technique
Tube furnace in existing coking process, is chiefly used in de- benzene or the ammonia still process of ammonia steaming system of crude benzol system, and burning needs
Gas source be coke-stove gas, blast furnace gas or mixed gas, be mainly used for heating wash benzene rich oil or distilled ammonia wastewater, the coal gas needed
It is sprayed from the nozzles of bottom and air mixing is burnt, the exhaust gas generated after burning passes through radiant section, convection section, then passes through
The flue at top is discharged, and exhaust gas temperature is at 300 DEG C or more, the stack gases SO of discharge2In 30mg/m3More than, even up to
100mg/m3More than, NOXIn 150mg/m3More than, or even in 500mg/m3More than.
Above-mentioned tube furnace has two: first is that the SO of tube furnace flue gas emissions2And NOXHigher than " coking chemistry industry
Pollutant emission standard " standard specified in (GB16171-2012), it is unable to qualified discharge；Second is that the exhaust gas temperature of tube furnace exists
300 DEG C or more, there is a large amount of preheating and do not utilize, cause the waste of the energy.
Utility model content
The utility model aim is to provide a kind of tube furnace flue gas progress system for desulfuration and denitration, and tube furnace cigarette may be implemented
The qualified discharge of road gas, and energy consumption is reduced, solve the problems, such as background technique.
The technical solution of the utility model is:
A kind of tube furnace flue gas desulfurization and denitrification system includes tube furnace, diffusion valve, coke oven flue feed channel, tube furnace cigarette
The top of road feed channel, desulfurizing tower, denitrating tower, waste-heat recovery device, air-introduced machine and coke oven chimney, tube furnace is equipped with diffusion valve,
One end of tube furnace flue gas duct is connected on the flue of tube furnace, and the other end of tube furnace flue gas duct is connected to coke oven
In flue gas duct, on the flue of one end connection coke oven of the coke oven flue feed channel, the other end of coke oven flue feed channel
It is connect with the smoke inlet of desulfurizing tower, the exhanst gas outlet of desulfurizing tower and the smoke inlet of denitrating tower connect, and the flue gas of denitrating tower goes out
Mouth is connected to by waste-heat recovery device and air-introduced machine with coke oven chimney.
The tube furnace flue gas duct is equipped with control valve.
Using the utility model, the flue gas that tube furnace generates initially enters desulfurizing tower after mixing with the flue gas that coke oven generates de-
Sulphur exchanges heat subsequently into denitrating tower, then by waste-heat recovery device, and the flue gas after heat exchange passes through after blower pressurizes
Coke oven chimney standard discharge.
The beneficial effects of the utility model are: on the one hand solving SO in tubular type kiln gas2And NOXThe high problem of content, reaches
To discharge standard specified in " coking chemistry emission of industrial pollutants standard " (GB16171-2012), on the other hand, tube furnace
Fume afterheat part recycled, reduce energy consumption.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
In figure: 1, tube furnace, 2, diffusion valve, 3, control valve, 4, coke oven flue feed channel, 5, tube furnace flue pipe
Road, 6, desulfurizing tower, 7, denitrating tower, 8, waste-heat recovery device, 9, air-introduced machine, 10, coke oven chimney.
Specific embodiment
Below in conjunction with attached drawing, by example, the utility model is described in further detail.
Referring to attached drawing 1, a kind of tube furnace flue gas desulfurization and denitrification system includes tube furnace 1, diffusion valve 2, coke oven flue tracheae
Road 4, tube furnace flue gas duct 5, desulfurizing tower 6, denitrating tower 7, waste-heat recovery device 8, air-introduced machine 9 and coke oven chimney 10, tubular type
The top of furnace 1 is equipped with diffusion valve 2, and one end of tube furnace flue gas duct 5 is connected on the flue of tube furnace 1, tube furnace flue
The other end of feed channel 5 is connected in coke oven flue feed channel 4, the cigarette of one end connection coke oven of the coke oven flue feed channel 4
On road, the other end of coke oven flue feed channel 4 is connect with the smoke inlet of desulfurizing tower 6, the exhanst gas outlet and denitrating tower of desulfurizing tower 6
7 smoke inlet connection, the exhanst gas outlet of denitrating tower 7 are connected to by waste-heat recovery device 8 and air-introduced machine 9 with coke oven chimney 10.
Tube furnace 1, desulfurizing tower 6, denitrating tower 7 and waste-heat recovery device 8 are the art well-known technique content, this reality
It is the reasonable combination between them and the beneficial effect of generation with novel innovative point.
In the present embodiment, tube furnace flue gas duct 5 is equipped with control valve 3, the tune in tube furnace flue gas duct 5
It saves diffusion valve 2 before 3 valve of valve at the top of suction and tube furnace and blower is chain, suction is less than certain numerical value or wind before regulating valve 3
When machine is shut down, diffusion valve 2 is fully opened.
Diffusion valve 2 is installed, diffusion valve 2 is closed when in use, and the flue gas of tube furnace 1 passes through pipeline at the top of 1 flue of tube furnace
It is mixed before desulphurization denitration with the flue gas of coke oven, mixed flue gas carries out desulphurization denitration together, and the mixed flue gas after denitration passes through
Waste heat recycling absorbs sensible heat and generates steam, then outer smoke evacuation chimney, if system for desulfuration and denitration without waste-heat recovery device, can also be direct
Outer smoke evacuation chimney.
Claims (2)
1. a kind of tube furnace flue gas desulfurization and denitrification system, it is characterised in that include tube furnace (1), diffusion valve (2), flue gases of cock oven
Pipeline (4), tube furnace flue gas duct (5), desulfurizing tower (6), denitrating tower (7), waste-heat recovery device (8), air-introduced machine (9) and coke
The top of furnace chimney (10), tube furnace (1) is equipped with diffusion valve (2), and one end of tube furnace flue gas duct (5) is connected to tube furnace
(1) on flue, the other end of tube furnace flue gas duct (5) is connected on coke oven flue feed channel (4), the coke oven flue
On the flue of one end connection coke oven of feed channel (4), the flue gas of the other end and desulfurizing tower (6) of coke oven flue feed channel (4) enters
Mouth connection, the exhanst gas outlet of desulfurizing tower (6) are connect with the smoke inlet of denitrating tower (7), and the exhanst gas outlet of denitrating tower (7) passes through remaining
Heat recovery apparatus (8) and air-introduced machine (9) are connected to coke oven chimney (10).
2. a kind of tube furnace flue gas desulfurization and denitrification system according to claim 1, it is characterised in that the tube furnace flue
Feed channel (5) is equipped with control valve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821087841.0U CN208366101U (en) | 2018-07-10 | 2018-07-10 | A kind of tube furnace flue gas desulfurization and denitrification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821087841.0U CN208366101U (en) | 2018-07-10 | 2018-07-10 | A kind of tube furnace flue gas desulfurization and denitrification system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208366101U true CN208366101U (en) | 2019-01-11 |
Family
ID=64925149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821087841.0U Expired - Fee Related CN208366101U (en) | 2018-07-10 | 2018-07-10 | A kind of tube furnace flue gas desulfurization and denitrification system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208366101U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113457433A (en) * | 2021-05-31 | 2021-10-01 | 石横特钢集团有限公司 | Flue gas desulfurization and denitrification treatment device for tubular furnace |
-
2018
- 2018-07-10 CN CN201821087841.0U patent/CN208366101U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113457433A (en) * | 2021-05-31 | 2021-10-01 | 石横特钢集团有限公司 | Flue gas desulfurization and denitrification treatment device for tubular furnace |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190111 Termination date: 20210710 |
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| CF01 | Termination of patent right due to non-payment of annual fee |