CN207091446U - A kind of blast furnace blowing coke oven gas device - Google Patents
A kind of blast furnace blowing coke oven gas device Download PDFInfo
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- CN207091446U CN207091446U CN201720794495.9U CN201720794495U CN207091446U CN 207091446 U CN207091446 U CN 207091446U CN 201720794495 U CN201720794495 U CN 201720794495U CN 207091446 U CN207091446 U CN 207091446U
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Abstract
A kind of blast furnace blowing coke oven gas device, belongs to blast furnace ironmaking and coke-stove gas applied technical field.Including caisson, blowing device, metering adjusting means and the part of safety guard four；Blowing device is made up of coke-stove gas pneumatic rapid cut-off valve, coke gas flow regulating valve, purging exhaust stack, injection endless tube diffusion valve, injection branch pipe and exhaust stack etc.；Metering adjusting means is made up of coke gas flow regulating valve and nitrogen endless tube flow control valve etc.；Safety guard is made up of nitrogen header pipe and nitrogen branch pipe check-valves etc.；Caisson is connected with blowing device by being blown coke-stove gas supervisor, and safety guard is connected by nitrogen header pipe and nitrogen branch pipe with blowing device, and metering adjusting means is on injection coke-stove gas supervisor and nitrogen header pipe.Advantage is, effectively reduces exhaust emission, consumption of calorie is few, improves production efficiency, is advantageous to environmental protection.
Description
Technical field
The utility model belongs to blast furnace ironmaking and coke-stove gas applied technical field, more particularly to a kind of blast furnace blowing coke oven
Gas fitting.
Background technology
Iron industry is facing the pressure of increasing energy-saving and emission-reduction, and low-carbon economy turns into focus of attention.At present
Iron-smelting process still based on blast furnace ironmaking, and the fuel of blast furnace is based on coke and other fuel such as auxiliary blast coal dust, but
Product either after coke or coal dust firing is all mainly carbon dioxide, pollution problem all be present for environment.And spray
The grinding process of coal dust is blown, the consumption of high electric energy and part resource can be produced, and flue gas etc. is discharged to air.
Coke-stove gas is the byproduct of coking industry, and main component is hydrogen and methane.As blast furnace blowing fuel, can drop
Low blast furnace CO2 emissions, and reasonable energy utilization, and be advantageous to improve blast fumance efficiency, and promote the suitable of blast furnace
OK.Section Jiao's benefit of blast furnace blowing coke oven gas is obvious, small investment, has very high economic benefit.Compared to pulverized coal injection in blast furnace
Technique, coke oven gas jetting technique is simpler, greatly reduces equipment operation and maintenance difficulties, while also reduce coal injection and pulverization
Required high electric energy and energy resource consumption, and the problems such as powder fume emission processed.
The content of the invention
The purpose of this utility model is to provide a kind of blast furnace blowing coke oven gas device solve coke-stove gas as high
The problem of stove injected fuel uses.It can be achieved to carry out blast furnace coke oven gas jetting, or the system collocation coal injection system also may be used
The mixed injection that coke-stove gas and coal dust are carried out to blast furnace is realized, so as to improve the energy-saving and emission-reduction of blast furnace and drop to the full extent
The effect of low coke ratio.
A kind of blast furnace blowing coke oven gas device, filled by caisson, blowing device, metering adjusting means and safeguard protection
Put composition.Including injection coke-stove gas supervisor 1, coke-stove gas pneumatic rapid cut-off valve 2, coke-stove gas pneumatic rapid cut-off valve 3,
Coke gas flow regulating valve 4, purging exhaust stack 5, coke-stove gas house steward check-valves 6, injection endless tube diffusion valve 7, injection endless tube
8th, branch pipe pneumatic rapid cut-off valve 9, injection branch pipe check-valves 10, injection branch pipe 11, injection branch pipe metal hose 12, back-fire relief are blown
Device 13, injection branch pipe manual ball valve 14, blast-furnace tuyere 15, nitrogen header pipe 16, nitrogen header pipe pneumatic rapid cut-off valve 17, nitrogen are total
Pipe flow control valve 18, nitrogen header pipe check-valves 19, nitrogen endless tube 20, nitrogen branch pipe 21, nitrogen branch pipe pneumatic rapid cut-off valve
22nd, the pneumatic diffusion valve 26 of nitrogen branch pipe check-valves 23, exhaust stack 24, glasses valve 25, coke-stove gas, nitrogen endless tube air supply pipe 27,
Nitrogen endless tube flow control valve 28, blow-off pipe 29 and blowoff valve 30.
Caisson includes coke-stove gas storage tank and pressure adjustment device, and stable source of the gas is provided for blast furnace blowing；
Blowing device is pneumatically quick by injection coke-stove gas supervisor 1, coke-stove gas pneumatic rapid cut-off valve 2, coke-stove gas
Stop valve 3, coke gas flow regulating valve 4, purging exhaust stack 5, coke-stove gas house steward check-valves 6, injection endless tube diffusion valve 7,
It is soft to be blown endless tube 8, injection branch pipe pneumatic rapid cut-off valve 9, injection branch pipe check-valves 10, injection branch pipe 11, injection branch pipe metal
Pipe 12, spark arrester 13, injection branch pipe manual ball valve 14, blast-furnace tuyere 15, exhaust stack 24, glasses valve 25 and coke-stove gas are pneumatically put
Valve 26 is dissipated to form；Injection coke-stove gas is responsible for 1 one end and is connected with coke-stove gas caisson, other end connection injection endless tube 8；
Injection coke-stove gas supervisor 1 on be disposed with coke-stove gas pneumatic rapid cut-off valve 2, coke-stove gas pneumatic rapid cut-off valve 3,
Coke gas flow regulating valve 4 and coke-stove gas house steward check-valves 6, exhaust stack 24 is on injection coke-stove gas supervisor 1, exhaust stack
24 are provided with the pneumatic diffusion valve 26 of coke-stove gas；It is blown endless tube 8 and is provided with injection branch pipe 11；Connection purging is put on injection endless tube 8
Separate tube 5, purging exhaust stack 5 are provided with injection endless tube diffusion valve 7；Injection endless tube 8 is connected with blow-off pipe 29, has on blow-off pipe 29
Blowoff valve 30；Injection branch pipe pneumatic rapid cut-off valve 9, injection branch pipe check-valves are disposed with every injection branch pipe 11
10th, glasses valve 25, injection branch pipe metal hose 12, spark arrester 13 and injection branch pipe manual ball valve 14, the injection end of branch pipe 11 with
The coke-stove gas spray gun or spout set on corresponding blast-furnace tuyere 15 is connected, and coke-stove gas is finally sprayed into blast furnace；
Adjusting means is measured by coke gas flow regulating valve 4, nitrogen header pipe flow control valve 18, nitrogen endless tube air supply pipe
27 and nitrogen endless tube flow control valve 28 form.For coke gas flow regulating valve 4 on injection coke-stove gas supervisor 1, nitrogen is total
Pipe 16 is provided with nitrogen header pipe flow control valve 18；Nitrogen endless tube flow control valve 28 is arranged on nitrogen endless tube air supply pipe 27；
Safety guard is by nitrogen header pipe 16, nitrogen header pipe pneumatic rapid cut-off valve 17, nitrogen header pipe flow control valve
18th, nitrogen header pipe check-valves 19, nitrogen endless tube 20, nitrogen branch pipe 21, nitrogen branch pipe pneumatic rapid cut-off valve 22 and nitrogen branch pipe
Check-valves 23 forms；Nitrogen header pipe 16 is provided with nitrogen header pipe pneumatic rapid cut-off valve 17, the and of nitrogen header pipe flow control valve 18
Nitrogen header pipe check-valves 19；Nitrogen header pipe 16 is connected with injection coke-stove gas supervisor 1；There is nitrogen branch pipe on nitrogen endless tube 20
21, and nitrogen header pipe 16 is connected by nitrogen endless tube air supply pipe 27；Flow control valve 28 is provided with nitrogen endless tube air supply pipe 27；
The corresponding injection branch pipe 11 of the end of nitrogen branch pipe 21 connection；The pneumatic fast shut-off of nitrogen branch pipe is provided with every nitrogen branch pipe 21
Valve 22 and nitrogen branch pipe check-valves 23；
The quantity of injection branch pipe 11 and nitrogen branch pipe 21 is identical with the inlet number of injection coke-stove gas needed for blast furnace and presses
Blast furnace circumferencial direction is evenly arranged；
Caisson is connected with blowing device by being blown coke-stove gas supervisor 1, and safety guard is total by nitrogen
Pipe 16 and nitrogen branch pipe 21 are connected with blowing device, and metering adjusting means is on injection coke-stove gas supervisor 1 and nitrogen header pipe 16.
The utility model has the advantage of：
1st, coke-stove gas is used for blast furnace blowing, not only can reduction exhaust emission, and compared to can as conventional fuel
Realize higher value；
2nd, the existing fuel of blast furnace is coke and coal, and the main component of both fuel is carbon, can be produced after fuel big
The carbon dioxide of amount；And the main component of coke-stove gas is hydrogen and methane, the blast furnace fuel of part is substituted using coke-stove gas,
The yield of post combustion carbon dioxide can be reduced, is advantageous to environmental protection；
3rd, the hydrogen reduction speed in coke-stove gas is fast, and consumption of calorie is few, can improve blast fumance efficiency and improvement blast furnace is suitable
OK.
Brief description of the drawings
Fig. 1 is the schematic diagram of blast furnace blowing coke oven gas device.Wherein, injection coke-stove gas supervisor 1, coke-stove gas are pneumatic
Repid cut-off valve 2, coke-stove gas pneumatic rapid cut-off valve 3, coke gas flow regulating valve 4, purging exhaust stack 5, coke-stove gas
House steward's check-valves 6, injection endless tube diffusion valve 7, injection endless tube 8, injection branch pipe pneumatic rapid cut-off valve 9, injection branch pipe check-valves
10th, branch pipe 11, injection branch pipe metal hose 12, spark arrester 13, injection branch pipe manual ball valve 14, blast-furnace tuyere 15, nitrogen are blown
House steward 16, nitrogen header pipe pneumatic rapid cut-off valve 17, nitrogen header pipe flow control valve 18, nitrogen header pipe check-valves 19, nitrogen ring
Pipe 20, nitrogen branch pipe 21, nitrogen branch pipe pneumatic rapid cut-off valve 22, nitrogen branch pipe check-valves 23, exhaust stack 24, glasses valve 25,
The pneumatic diffusion valve 26 of coke-stove gas, nitrogen endless tube air supply pipe 27, nitrogen endless tube flow control valve 28, blow-off pipe 29, blowoff valve 30.
Embodiment
Embodiment 1
Illustrate specific embodiment of the present utility model below in conjunction with the accompanying drawings.
A kind of blast furnace blowing coke oven gas device, filled by caisson, blowing device, metering adjusting means and safeguard protection
Put composition.Including injection coke-stove gas supervisor 1, coke-stove gas pneumatic rapid cut-off valve 2, coke-stove gas pneumatic rapid cut-off valve 3,
Coke gas flow regulating valve 4, purging exhaust stack 5, coke-stove gas house steward check-valves 6, injection endless tube diffusion valve 7, injection endless tube
8th, branch pipe pneumatic rapid cut-off valve 9, injection branch pipe check-valves 10, injection branch pipe 11, injection branch pipe metal hose 12, back-fire relief are blown
Device 13, injection branch pipe manual ball valve 14, blast-furnace tuyere 15, nitrogen header pipe 16, nitrogen header pipe pneumatic rapid cut-off valve 17, nitrogen are total
Pipe flow control valve 18, nitrogen header pipe check-valves 19, nitrogen endless tube 20, nitrogen branch pipe 21, nitrogen branch pipe pneumatic rapid cut-off valve
22nd, the pneumatic diffusion valve 26 of nitrogen branch pipe check-valves 23, exhaust stack 24, glasses valve 25, coke-stove gas, nitrogen endless tube air supply pipe 27,
Nitrogen endless tube flow control valve 28, blow-off pipe 29 and blowoff valve 30.
Caisson includes coke-stove gas storage tank and pressure adjustment device, and stable source of the gas is provided for blast furnace blowing；
Blowing device is pneumatically quick by injection coke-stove gas supervisor 1, coke-stove gas pneumatic rapid cut-off valve 2, coke-stove gas
Stop valve 3, coke gas flow regulating valve 4, purging exhaust stack 5, coke-stove gas house steward check-valves 6, injection endless tube diffusion valve 7,
It is soft to be blown endless tube 8, injection branch pipe pneumatic rapid cut-off valve 9, injection branch pipe check-valves 10, injection branch pipe 11, injection branch pipe metal
Pipe 12, spark arrester 13, injection branch pipe manual ball valve 14, blast-furnace tuyere 15, exhaust stack 24, glasses valve 25 and coke-stove gas are pneumatically put
Valve 26 is dissipated to form；Injection coke-stove gas is responsible for 1 one end and is connected with coke-stove gas caisson, other end connection injection endless tube 8；
Injection coke-stove gas supervisor 1 on be disposed with coke-stove gas pneumatic rapid cut-off valve 2, coke-stove gas pneumatic rapid cut-off valve 3,
Coke gas flow regulating valve 4 and coke-stove gas house steward check-valves 6, exhaust stack 24 is on injection coke-stove gas supervisor 1, exhaust stack
24 are provided with the pneumatic diffusion valve 26 of coke-stove gas；It is blown endless tube 8 and is provided with injection branch pipe 11；Connection purging is put on injection endless tube 8
Separate tube 5, purging exhaust stack 5 are provided with injection endless tube diffusion valve 7；Injection endless tube 8 is connected with blow-off pipe 29, has on blow-off pipe 29
Blowoff valve 30；Injection branch pipe pneumatic rapid cut-off valve 9, injection branch pipe check-valves are disposed with every injection branch pipe 11
10th, glasses valve 25, injection branch pipe metal hose 12, spark arrester 13 and injection branch pipe manual ball valve 14, the injection end of branch pipe 11 with
The coke-stove gas spray gun or spout set on corresponding blast-furnace tuyere 15 is connected, and coke-stove gas is finally sprayed into blast furnace；
Adjusting means is measured by coke gas flow regulating valve 4, nitrogen header pipe flow control valve 18, nitrogen endless tube air supply pipe
27 and nitrogen endless tube flow control valve 28 form.For coke gas flow regulating valve 4 on injection coke-stove gas supervisor 1, nitrogen is total
Pipe 16 is provided with nitrogen header pipe flow control valve 18；Nitrogen endless tube flow control valve 28 is arranged on nitrogen endless tube air supply pipe 27；
Safety guard is by nitrogen header pipe 16, nitrogen header pipe pneumatic rapid cut-off valve 17, nitrogen header pipe flow control valve
18th, nitrogen header pipe check-valves 19, nitrogen endless tube 20, nitrogen branch pipe 21, nitrogen branch pipe pneumatic rapid cut-off valve 22 and nitrogen branch pipe
Check-valves 23 forms；Nitrogen header pipe 16 is provided with nitrogen header pipe pneumatic rapid cut-off valve 17, the and of nitrogen header pipe flow control valve 18
Nitrogen header pipe check-valves 19；Nitrogen header pipe 16 is connected with injection coke-stove gas supervisor 1, and 1 He is responsible for for being blown coke-stove gas
It is blown the purging displacement of endless tube 8；There is nitrogen branch pipe 21 on nitrogen endless tube 20, and it is total by the connection nitrogen of nitrogen endless tube air supply pipe 27
Pipe 16；Flow control valve 28 is provided with nitrogen endless tube air supply pipe 27；The corresponding injection branch pipe 11 of the end of nitrogen branch pipe 21 connection,
For being blown branch pipe 11 and its being blown cooling or the purging of mouth；Nitrogen branch pipe is provided with every nitrogen branch pipe 21 pneumatically quickly to cut
Disconnected valve 22 and nitrogen branch pipe check-valves 23；
The quantity and the inlet number of injection coke-stove gas needed for blast furnace for being blown branch pipe 11 and nitrogen branch pipe 21 are all mutually 42
It is individual, and be evenly arranged by blast furnace circumferencial direction；
Caisson is connected with blowing device by being blown coke-stove gas supervisor 1, and safety guard is total by nitrogen
Pipe 16 and nitrogen branch pipe 21 are connected with blowing device, and metering adjusting means is on injection coke-stove gas supervisor 1 and nitrogen header pipe 16.
When being blown coke-stove gas 1 pressure of supervisor less than the setting value lower limit that system process requires, coke-stove gas is pneumatic
Repid cut-off valve 2 and coke-stove gas pneumatic rapid cut-off valve 3 are closed, and the pneumatic diffusion valve 26 of coke-stove gas is opened.Nitrogen header pipe gas
Dynamic repid cut-off valve 17, which is opened, carries out nitrogen purging.
Coke-stove gas pneumatic rapid cut-off valve 2 and coke-stove gas pneumatic rapid cut-off valve 3 and the pneumatic diffusion valve of coke-stove gas
26 chain controls.The coke-stove gas gas when coke-stove gas pneumatic rapid cut-off valve 2 and coke-stove gas pneumatic rapid cut-off valve 3 are closed
Dynamic diffusion valve 26 is opened.It is otherwise burnt when coke-stove gas pneumatic rapid cut-off valve 2 and coke-stove gas pneumatic rapid cut-off valve 3 are opened
The pneumatic diffusion valve 26 of producer gas is closed.
Coke-stove gas pneumatic rapid cut-off valve 2 is by unicoil (obtaining electric-opening) solenoid valve control, and magnetic valve is by safety
Program control system (PLC) controls.Accident condition automatically returns to home.
Coke-stove gas pneumatic rapid cut-off valve 3 is by unicoil (obtaining electric-opening) solenoid valve control, and magnetic valve is by safety
Program control system (PLC) controls.Accident condition automatically returns to home.
The pneumatic diffusion valve 26 of coke-stove gas (must be electrically turn off) solenoid valve control by unicoil, magnetic valve by safety program control
System (PLC) control processed.Accident condition automatically returns to home.
Nitrogen header pipe pneumatic rapid cut-off valve 17 (must be electrically turn off) solenoid valve control by unicoil, and magnetic valve is by safety
Program control system (PLC) controls.Accident condition automatically returns to home.
Coke gas flow regulating valve 4 is the flow for controlling coke-stove gas to spray into blast furnace by blast-furnace tuyere 15.Coke-oven coal
The aperture of air-flow adjustable valve 4 is automatically and manually controlled by a full set of flow detection.
Nitrogen header pipe flow control valve 18 and nitrogen endless tube flow control valve 28 are that control nitrogen is sprayed by blast-furnace tuyere 15
Enter the flow of blast furnace, and automatically and manually controlled by a full set of flow detection.
It is blown endless tube 8 and is provided with diffusion valve 7 and oxygen content detection, is when the oxygen concentration being blown in endless tube 8 is more than 1%
System alarm, coke-stove gas pneumatic rapid cut-off valve 2 are closed, and pneumatic rapid cut-off valve 3 is closed, and the pneumatic diffusion valve 26 of coke-stove gas is opened
Open, and the diffusion valve 7 being blown on endless tube 8 is opened, by the coke oven gas discharge in pipeline.It is blown branch pipe pneumatic rapid cut-off valve
9 chain closings, the nitrogen branch pipe pneumatic rapid cut-off valve 22 on nitrogen endless tube 20 are opened, and carry out nitrogen purging.
It is blown endless tube 8 and is provided with purging exhaust stack 5, exhaust stack is brought straight down to more than Blast Furnace Throat Ventilation Valve platform.
Spark arrester 13 on injection branch pipe 11 can block pipeline flame to spread, and have extinguishing effect to flame.
Branch pipe check-valves 10 and injection branch pipe manual ball valve 14 are blown, can effectively prevent that coal gas flows backwards in blast furnace.
Nitrogen header pipe 16 is connected with nitrogen endless tube flow control valve 28, nitrogen endless tube 20 successively by nitrogen endless tube air supply pipe 27
Connect.Nitrogen endless tube 20 is provided with 42 nitrogen branch pipes 21.On nitrogen branch pipe 21 successively with nitrogen branch pipe pneumatic rapid cut-off valve 22,
Nitrogen branch pipe check-valves 23 connects.The end of nitrogen branch pipe 21 is connected with corresponding injection branch pipe 11 respectively.
Blow-off pipe 29 is connected to injection endless tube 8, and sets blowoff valve 30 thereon.
In a word, to ensure the safety of system, this blast furnace blowing coke oven gas system is provided with complete safety monitoring means
And the protection implement.After blast furnace have received stable coke-stove gas, be advantageous to improve blast fumance efficiency, promote smooth operation of furnace.
Claims (2)
1. a kind of blast furnace blowing coke oven gas device, it is characterised in that including injection coke-stove gas supervisor (1), coke-stove gas gas
Dynamic repid cut-off valve (2), coke-stove gas pneumatic rapid cut-off valve (3), coke gas flow regulating valve (4), purging exhaust stack
(5), coke-stove gas house steward check-valves (6), injection endless tube diffusion valve (7), injection endless tube (8), the injection pneumatic fast shut-off of branch pipe
Valve (9), injection branch pipe check-valves (10), injection branch pipe (11), injection branch pipe metal hose (12), spark arrester (13), injection branch
Pipe manual ball valve (14), blast-furnace tuyere (15), nitrogen header pipe (16), nitrogen header pipe pneumatic rapid cut-off valve (17), nitrogen header pipe
Flow control valve (18), nitrogen header pipe check-valves (19), nitrogen endless tube (20), nitrogen branch pipe (21), nitrogen branch pipe are pneumatically quick
Stop valve (22), nitrogen branch pipe check-valves (23), exhaust stack (24), glasses valve (25), the pneumatic diffusion valve of coke-stove gas (26), nitrogen
Compression ring pipe air supply pipe (27), nitrogen endless tube flow control valve (28), blow-off pipe (29) and blowoff valve (30)；
Separately constitute caisson, blowing device, metering adjusting means and the part of safety guard four；
Caisson includes coke-stove gas storage tank and pressure adjustment device；Blowing device is by injection coke-stove gas supervisor (1), coke oven
Coal gas pneumatic rapid cut-off valve (2), coke-stove gas pneumatic rapid cut-off valve (3), coke gas flow regulating valve (4), purging are put
Separate tube (5), coke-stove gas house steward check-valves (6), injection endless tube diffusion valve (7), injection endless tube (8), injection branch pipe are pneumatically quick
Stop valve (9), injection branch pipe check-valves (10), injection branch pipe (11), injection branch pipe metal hose (12), spark arrester (13), spray
Blow branch pipe manual ball valve (14), blast-furnace tuyere (15), exhaust stack (24), glasses valve (25) and the pneumatic diffusion valve of coke-stove gas (26)
Composition；Injection coke-stove gas supervisor (1) one end is connected with coke-stove gas caisson, other end connection injection endless tube (8)；Spray
Blow and be disposed with coke-stove gas pneumatic rapid cut-off valve (2), coke-stove gas pneumatic rapid cut-off valve on coke-stove gas supervisor (1)
(3), coke gas flow regulating valve (4) and coke-stove gas house steward check-valves (6), exhaust stack (24) is in injection coke-stove gas supervisor
(1) on, exhaust stack (24) is provided with the pneumatic diffusion valve of coke-stove gas (26)；It is blown endless tube (8) and is provided with injection branch pipe (11)；Spray
Connection purging exhaust stack (5) on endless tube (8) is blown, purging exhaust stack (5) is provided with injection endless tube diffusion valve (7)；It is blown endless tube (8)
It is connected with blow-off pipe (29), there is blowoff valve (30) on blow-off pipe (29)；Every injection branch pipe (11) on be disposed with spray
Blow branch pipe pneumatic rapid cut-off valve (9), injection branch pipe check-valves (10), glasses valve (25), injection branch pipe metal hose (12), resistance
Firearm (13) and injection branch pipe manual ball valve (14), injection branch pipe (11) end and the coke oven set on corresponding blast-furnace tuyere (15)
Gas spray gun or spout are connected；
Adjusting means is measured by coke gas flow regulating valve (4), nitrogen header pipe flow control valve (18), nitrogen endless tube air supply pipe
(27) formed with nitrogen endless tube flow control valve (28)；Coke gas flow regulating valve (4) is in injection coke-stove gas supervisor (1)
On, nitrogen header pipe (16) is provided with nitrogen header pipe flow control valve (18)；Nitrogen endless tube flow control valve (28) is arranged on nitrogen
On endless tube air supply pipe (27)；
Safety guard is by nitrogen header pipe (16), nitrogen header pipe pneumatic rapid cut-off valve (17), nitrogen header pipe flow control valve
(18), nitrogen header pipe check-valves (19), nitrogen endless tube (20), nitrogen branch pipe (21), nitrogen branch pipe pneumatic rapid cut-off valve (22)
Formed with nitrogen branch pipe check-valves (23)；It is total that nitrogen header pipe (16) is provided with nitrogen header pipe pneumatic rapid cut-off valve (17), nitrogen
Pipe flow control valve (18) and nitrogen header pipe check-valves (19)；Nitrogen header pipe (16) is connected with injection coke-stove gas supervisor (1)；
There is nitrogen branch pipe (21) on nitrogen endless tube (20), and nitrogen header pipe (16) is connected by nitrogen endless tube air supply pipe (27)；In nitrogen
Endless tube air supply pipe (27) is provided with flow control valve (28)；The corresponding injection branch pipe (11) of nitrogen branch pipe (21) end connection；Often
Nitrogen branch pipe pneumatic rapid cut-off valve (22) and nitrogen branch pipe check-valves (23) are provided with root nitrogen branch pipe (21)；
Caisson is connected with blowing device by being blown coke-stove gas supervisor (1), and safety guard passes through nitrogen header pipe
(16) it is connected with nitrogen branch pipe (21) with blowing device, metering adjusting means is in injection coke-stove gas supervisor (1) and nitrogen header pipe
(16) on.
2. device according to claim 1, it is characterised in that described injection branch pipe (11) and the number of nitrogen branch pipe (21)
Measure identical with the inlet number of the required injection coke-stove gas of blast furnace and be evenly arranged by blast furnace circumferencial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720794495.9U CN207091446U (en) | 2017-07-03 | 2017-07-03 | A kind of blast furnace blowing coke oven gas device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720794495.9U CN207091446U (en) | 2017-07-03 | 2017-07-03 | A kind of blast furnace blowing coke oven gas device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207091446U true CN207091446U (en) | 2018-03-13 |
Family
ID=61554867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720794495.9U Active CN207091446U (en) | 2017-07-03 | 2017-07-03 | A kind of blast furnace blowing coke oven gas device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207091446U (en) |
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2017
- 2017-07-03 CN CN201720794495.9U patent/CN207091446U/en active Active
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