CN206799670U - A kind of converter gas exhaust system - Google Patents
A kind of converter gas exhaust system Download PDFInfo
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- CN206799670U CN206799670U CN201720507569.6U CN201720507569U CN206799670U CN 206799670 U CN206799670 U CN 206799670U CN 201720507569 U CN201720507569 U CN 201720507569U CN 206799670 U CN206799670 U CN 206799670U
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- nitrogen
- gas
- exhaust system
- electrostatic precipitator
- blowpipe
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
It the utility model is related to a kind of converter gas exhaust system, including evaporated flue, devaporizer, electrostatic precipitator, ID blower fans, coal gas diffusion tower and gas cooler and the coal-gas recovering cabinet being connected with gas cooler, electrostatic precipitator is taken over devaporizer bottom, ID blower fans are arranged on the outlet of electrostatic precipitator, divide two-way branch road after ID blower fans：Coal gas diffusion tower, another way connection gas cooler are connected all the way；First nitrogen is installed on the gaspipe line between devaporizer bottom and electrostatic precipitator and helps blowpipe, the second nitrogen is installed on the coal gas diffusion tower tower body and helps blowpipe.Two-way nitrogen, which helps blowpipe to provide pressure, can at least continue the one heat steel duration of heat.It can not start two-way nitrogen and help blowpipe, while using the siphon pipe principle of coal gas diffusion tower, flue gas caused by converter smelting is smoothly taken out of under short time recovery situation in ID fan troubles.
Description
Technical field
It the utility model is related to converter gas exhaust system, especially a kind of situation about being broken down when converter in ID blower fans
Under still be able to continue the system smelted.
Background technology
In existing converter production process, being broken down in the ID blower fans of converter fume system then needs to lose no time to arrange repairing,
If can not start in the short time, molten steel bubble stove in stove can be caused or even freeze stove, the length of time one causes molten steel to destroy furnace lining
The damage of property.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of converter gas discharge system for above-mentioned prior art
System, in the case where the failure of ID blower fans can not start in the short time, remain to keep the converter normal operation of a period of time,
Molten steel in stove can be avoided to steep stove for a long time or even freeze stove, reduce molten steel to the destructive damage of furnace lining.
The technical scheme in the invention for solving the above technical problem is：A kind of converter gas exhaust system, including vapour
Change flue, devaporizer, electrostatic precipitator, ID blower fans, coal gas diffusion tower and gas cooler and and gas cooler
The coal-gas recovering cabinet of connection, electrostatic precipitator are taken over devaporizer bottom, and ID blower fans are arranged on electrostatic precipitator
Outlet, ID blower fans divide two-way branch road afterwards：Coal gas diffusion tower, another way connection gas cooler are connected all the way；Characterized in that,
First nitrogen is installed on the gaspipe line between devaporizer bottom and electrostatic precipitator and helps blowpipe, is put in the coal gas
The second nitrogen is installed on scattered tower tower body and helps blowpipe.
Preferably, it is mesohigh nitrogen pipeline that first nitrogen, which helps blowpipe, and caliber exists in 130-160mm, pressure
0.6-0.8MPa, nitrogen flow are controlled in 6000 m3/h-8000m3/h.
Preferably, it is mesohigh nitrogen pipeline that second nitrogen, which helps blowpipe, and caliber exists in 250-350mm, pressure
0.8-1.0 MPa, nitrogen flow are controlled in 20000 m3/h-25000m3/h.
Preferably, it is 30 ° that the first nitrogen, which helps the setting angle of blowpipe and gaspipe line, and the second nitrogen helps blowpipe and exhaust stack
Setting angle be 30 °.
Compared with prior art, the utility model has the advantage of：Provide a kind of converter gas exhaust system, two-way
Nitrogen, which helps blowpipe to provide pressure, can at least continue the one heat steel duration of heat（20 minutes or so）.Can not the short time in ID fan troubles
Under recovery situation, start two-way nitrogen and help blowpipe, while using the siphon pipe principle of coal gas diffusion tower, by caused by converter smelting
Flue gas is smoothly taken out of.
Brief description of the drawings
Fig. 1 is the structural representation of converter gas exhaust system in the utility model embodiment；
Fig. 2 is the setting figure that the first nitrogen helps blowpipe in the utility model embodiment；
Fig. 3 is the setting figure that the second nitrogen helps blowpipe in the utility model embodiment.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing embodiment.
As shown in figure 1, the converter gas exhaust system in the present embodiment, including evaporated flue 1, devaporizer 2, electrostatic
Dust arrester 3, ID blower fans 4, coal gas diffusion tower 5 and gas cooler 6 and the coal-gas recovering cabinet 7 being connected with gas cooler,
Electrostatic precipitator 3 and the bottom of devaporizer 2 are taken over, and ID blower fans 4 are arranged on the outlet of electrostatic precipitator 3, ID blower fans 4 it
After divide two-way branch road：Coal gas diffusion tower 5, another way connection gas cooler 6 are connected all the way.The bottom of devaporizer 2 with it is quiet
First nitrogen is installed on the gaspipe line between electric dust collector 3 and helps blowpipe 8, second nitrogen is installed on the tower body of coal gas diffusion tower 5
Gas helps blowpipe 9.
It is mesohigh nitrogen pipeline that first nitrogen, which helps blowpipe, and caliber is in 130-160mm, and pressure is in 0.6-0.8MPa, nitrogen
Throughput is controlled in 6000 m3/h -8000m3/h.It is mesohigh nitrogen pipeline that second nitrogen, which helps blowpipe, caliber 250-
350mm, pressure are controlled in 20000 m3/h-25000m3/h in 0.8-1.0 MPa, nitrogen flow.First nitrogen help blowpipe with
The setting angle of gaspipe line is 30 °, and it is 30 ° that the second nitrogen, which helps the setting angle of blowpipe and exhaust stack, as shown in Figure 2.
The utility model is in the case of ID blower fans break down and can not started, and avoids molten steel in stove and steeps stove very for a long time
To stove is frozen, reduce molten steel to the destructive damage of furnace lining, be that converter can continue to smelt in the case of converter ID fan troubles
Important method.The patent application method：ID fan troubles can not recover the short time in converter steelmaking process, before descending rifle to blow again
Converter oxygen gun nitrogen envelope, petticoat pipe nitrogen envelope, 1# nitrogen are helped blow valve, 2# nitrogen helps that to blow valve fully open, after according to《Under the small oxygen amount of converter
Rifle provides》Lower rifle blowing, converting process pays close attention to each nitrogen valve pressure and flow at any time, while observes gas analysis meter CO, O, two
Content of carbon oxide（The a large amount of of nitrogen enter, and the concentration of CO and O in electrostatic precipitation is declined to a great extent, and reducing venting of dust explosion may）, then tie
Close fire door flame conditions（Whether smoothly flue gas is detached, guarded against gas poisoning）, the stove steel is smoothly blown to terminal.If cross
When journey occurs abnormal（A. nitrogen flow deficiency；B. gas analysis meter oxygen content is high；Not situations such as c fire door flames are taken out to fall）, immediately
Carry rifle and close oxygen, wait and be further continued for lower rifle blowing after finding out concrete reason.
In addition to the implementation, the utility model also includes other embodiment, all to use equivalents or equivalent
The technical scheme that substitute mode is formed, all should fall within the protection domain of the utility model claims.
Claims (7)
1. a kind of converter gas exhaust system, including evaporated flue, devaporizer, electrostatic precipitator, ID blower fans, coal gas are put
Dissipate tower and gas cooler and the coal-gas recovering cabinet being connected with gas cooler, electrostatic precipitator and devaporizer bottom
Adapter, ID blower fans are arranged on the outlet of electrostatic precipitator, divide two-way branch road after ID blower fans：Coal gas diffusion tower is connected all the way,
Another way connects gas cooler；Characterized in that, the gaspipe line between devaporizer bottom and electrostatic precipitator
The first nitrogen of upper installation helps blowpipe, installs the second nitrogen on the coal gas diffusion tower tower body and helps blowpipe.
2. converter gas exhaust system according to claim 1, it is characterised in that：It is middle height that first nitrogen, which helps blowpipe,
Nitrogen pipeline is pressed, caliber is in 130-160mm.
3. converter gas exhaust system according to claim 1, it is characterised in that：It is middle height that second nitrogen, which helps blowpipe,
Nitrogen pipeline is pressed, caliber is in 250-350mm.
4. converter gas exhaust system according to claim 1, it is characterised in that：First nitrogen helps blowpipe pressure to exist
0.6-0.8MPa, nitrogen flow are controlled in 6000 m3/h-8000m3/h.
5. converter gas exhaust system according to claim 1, it is characterised in that：Second nitrogen helps blowpipe pressure to exist
0.8-1.0 MPa, nitrogen flow are controlled in 20000 m3/h-25000m3/h.
6. converter gas exhaust system according to claim 1, it is characterised in that：First nitrogen helps blowpipe and coal gas
The setting angle of pipeline is 30 °.
7. converter gas exhaust system according to claim 1, it is characterised in that：Second nitrogen helps blowpipe with diffusing
The setting angle of pipe is 30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720507569.6U CN206799670U (en) | 2017-05-09 | 2017-05-09 | A kind of converter gas exhaust system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720507569.6U CN206799670U (en) | 2017-05-09 | 2017-05-09 | A kind of converter gas exhaust system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206799670U true CN206799670U (en) | 2017-12-26 |
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ID=60739453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720507569.6U Active CN206799670U (en) | 2017-05-09 | 2017-05-09 | A kind of converter gas exhaust system |
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| CN (1) | CN206799670U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108265154A (en) * | 2018-03-04 | 2018-07-10 | 北京首钢国际工程技术有限公司 | A kind of automatic control system for preventing converter smelting coal gas venting of dust explosion |
| CN112575139A (en) * | 2020-12-29 | 2021-03-30 | 江苏沙钢集团有限公司 | Converter gas system for improving recovery quality and control method |
-
2017
- 2017-05-09 CN CN201720507569.6U patent/CN206799670U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108265154A (en) * | 2018-03-04 | 2018-07-10 | 北京首钢国际工程技术有限公司 | A kind of automatic control system for preventing converter smelting coal gas venting of dust explosion |
| CN112575139A (en) * | 2020-12-29 | 2021-03-30 | 江苏沙钢集团有限公司 | Converter gas system for improving recovery quality and control method |
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