CN107955848A - Oxygen enrichment device in front of blast furnace - Google Patents
Oxygen enrichment device in front of blast furnace Download PDFInfo
- Publication number
- CN107955848A CN107955848A CN201711444328.2A CN201711444328A CN107955848A CN 107955848 A CN107955848 A CN 107955848A CN 201711444328 A CN201711444328 A CN 201711444328A CN 107955848 A CN107955848 A CN 107955848A
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- China
- Prior art keywords
- oxygen
- blast furnace
- valve
- enriching device
- conveying pipe
- Prior art date
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- Granted
Links
- 239000001301 oxygen Substances 0.000 title claims abstract description 219
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 219
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 217
- 239000007789 gas Substances 0.000 claims abstract description 36
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 64
- 229910052757 nitrogen Inorganic materials 0.000 claims description 23
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 18
- 238000012360 testing method Methods 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 230000001105 regulatory effect Effects 0.000 abstract 2
- 239000000203 mixture Substances 0.000 description 9
- 239000000571 coke Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 229910000805 Pig iron Inorganic materials 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Iron (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention provides a front oxygen enrichment device of a blast furnace, which relates to the technical field of metallurgical equipment and comprises an oxygen conveying pipeline, an oxygen mixer, an oxygen content detector and a blast furnace blower which are sequentially connected in series, wherein the oxygen conveying pipeline is provided with a flow regulating valve and a stop valve which are sequentially arranged along the oxygen conveying direction, the oxygen mixer is communicated with an air conveying pipeline, the front oxygen enrichment device of the blast furnace also comprises a control unit, and the oxygen content detector and the flow regulating valve are electrically connected with the control unit. The oxygen enrichment device in front of the blast furnace can effectively control the oxygen content of the mixed gas, and ensure the production efficiency and the production safety.
Description
Technical field
The present invention relates to technical field of metallurgical equipment, oxygen-enriching device before more particularly to a kind of blast furnace machine.
Background technology
Oxygen-enriched air blast is one of effective means of intensification of smelting process in BF.In recent years, combined both at home and abroad with oxygen-enriched air blast a large amount of
Injected fuel is more notable as the major measure for reducing coke ratio, effect.
When blast furnace feeding air quantity is constant, air blast rate of oxygen increase by 1%, that is, increase air quantity 4.76%.According to steel
The experiment in ironworks, can increase production the pig iron 3% or so.Using oxygen-enriched air blast, the oxygen content in air port is added, is conducive to increase injection
Amount.So oxygen-enriched combination injection, is one of effective measures for obtaining stable and high yields and reducing coke ratio.
It is different that the position of air blower is added from oxygen, is divided into before machine oxygen-enriched two kinds after oxygen-enriched and machine.
It is oxygen-enriched after machine, i.e., a certain amount of oxygen is added in blower export to some position between blast furnace, wherein, after machine
It is oxygen-enriched to need to be compressed oxygen, at present, substantially pressurizeed by oxygen compressor to oxygen, then by the oxygen after pressurization
Gas is mixed with the air that air blower conveys, due to oxygen compressor need consume mass energy, add equipment investment and
The expense of regular maintenance, not only increases production cost, also creates the waste of the energy.
Oxygen-enriched before machine, i.e., oxygen is sent into air draft system from the aspiration channel of air blower, through blast furnace blower after being mixed with air
Pressurization is sent to blast furnace.Oxygen-enriched added oxygen pressure is low before machine, can save the oxygen compressor of high price, reduces energy loss, no
Foot part can waste oxygen when being and leaking informaton operation in operation.Also, gas is oxygen-enriched after the oxygen-enriched stringent control of needs mixes before machine
Rate, avoids triggering the production accidents such as fire.
In consideration of it, the present inventor develops one kind according to the production design experience for being engaged in this area and association area for many years
Oxygen-enriching device is existing in the prior art to solve the problems, such as before blast furnace machine.
The content of the invention
The object of the present invention is to provide oxygen-enriching device before a kind of blast furnace machine, can effectively control the oxygen of gas after mixing to contain
Amount, ensures production efficiency and production safety.
To reach above-mentioned purpose, the present invention proposes oxygen-enriching device before a kind of blast furnace machine, wherein, oxygen-enriched dress before the blast furnace machine
Putting includes oxygen conveying pipe, oxygen mixer, oxygen content detector and the blast furnace blower of sequential series connection, the oxygen
The flow control valve and stop valve set along the direction order of oxygen conveying is installed, in the oxygen mixer on conveyance conduit
It is communicated with airflow pipe, oxygen-enriching device further includes control unit before the blast furnace machine, the oxygen content detector and described
Flow control valve is electrically connected with described control unit.
Oxygen-enriching device before blast furnace machine as described above, wherein, also installed between the flow control valve and the stop valve
There is oxygen fast cut valve, the oxygen fast cut valve and the blast furnace blower are electrically connected with described control unit.
Oxygen-enriching device before blast furnace machine as described above, wherein, oxygen-enriching device further includes nitrogen delivery pipe before the blast furnace machine
Road, the nitrogen gas delivery-line are connected with the oxygen conveying pipe and are arranged on the stop valve and the oxygen fast cut valve
Between, nitrogen quick cut valve is provided with the nitrogen gas delivery-line, the nitrogen quick cut valve is electrically connected with described control unit.
Oxygen-enriching device before blast furnace machine as described above, wherein, the gas pressure in the nitrogen gas delivery-line is more than described
Gas pressure in oxygen conveying pipe.
Oxygen-enriching device before blast furnace machine as described above, wherein, the gas pressure in the nitrogen gas delivery-line is 0.8MPa.
Oxygen-enriching device before blast furnace machine as described above, wherein, spark arrester is additionally provided with the oxygen conveying pipe, it is described
Spark arrester is arranged between the nitrogen gas delivery-line and the oxygen fast cut valve.
Oxygen-enriching device before blast furnace machine as described above, wherein, one end of the oxygen conveying pipe and the oxygen mix
Device is connected, and the other end of the oxygen conveying pipe is connected with oxygen compressor room, and filtering is additionally provided with the oxygen conveying pipe
Device, the filter are installed between the flow control valve and the oxygen computer room.
Oxygen-enriching device before blast furnace machine as described above, wherein, oxygen cutting valve is also equipped with the oxygen conveying pipe,
The oxygen cutting valve is arranged between the oxygen compressor room and the filter, the oxygen cutting valve and described control unit
It is electrically connected.
Oxygen-enriching device before blast furnace machine as described above, wherein, pressure test group is additionally provided with the oxygen conveying pipe
Part and oxygen flow meter, the pressure test component include pressure transmitter and pressure gauge, the pressure gauge and the oxygen stream
Gauge is electrically connected with described control unit.
Oxygen-enriching device before blast furnace machine as described above, wherein, the stop valve is electronic stop valve, the electronic stop valve
It is electrically connected with described control unit.
Compared with prior art, the invention has the characteristics that and advantage：
Oxygen content detector is used to detect after oxygen mixer mixes in oxygen-enriching device before blast furnace machine proposed by the present invention
The size of oxygen concentration in pipeline internal mix gas, flow control valve are used for oxygen content in control pipeline internal mix gas
Size；Meanwhile oxygen content detector is connected with flow control valve with control unit, oxygen is realized by control unit
Content detection instrument and flow control valve it is chain, and then flow tune can be adjusted according to oxygen concentration in pipeline internal mix gas
The aperture of valve is saved, ensures that oxygen concentration is in preset range all the time in pipeline internal mix gas.
Oxygen content detector is arranged on oxygen mixer and blast furnace air in oxygen-enriching device before blast furnace machine proposed by the present invention
Between machine, i.e., what oxygen content detector was detected be enter blast furnace blower before mixed gas in oxygen concentration, according to
Testing result adjusts the aperture of flow control valve in time, ensures the oxygen concentration in the mixed gas into before blast furnace blower
All the time in preset range, prevent from triggering fire etc. due to excessive into oxygen concentration in the mixed gas of blast furnace blower
Security incident, so as to ensure the safe operation of blast furnace blower.
Brief description of the drawings
Attached drawing described here is only used for task of explanation, and is not intended in any way to limit model disclosed by the invention
Enclose.In addition, shape and proportional sizes of each component in figure etc. are only schematical, the understanding of the present invention is used to help, and
It is not the specific shape and proportional sizes for limiting each component of the present invention.Those skilled in the art under the teachings of the present invention, can
To select various possible shapes and proportional sizes to implement the present invention as the case may be.
Fig. 1 is the structure diagram of one embodiment of oxygen-enriching device before blast furnace machine proposed by the present invention；
Fig. 2 is the structure diagram of another embodiment of oxygen-enriching device before blast furnace machine proposed by the present invention.
Description of reference numerals：
100th, oxygen-enriching device before blast furnace machine；110th, oxygen conveying pipe；
111st, flow control valve；112nd, stop valve；
113rd, oxygen fast cut valve；114th, spark arrester；
115th, filter；116th, oxygen cutting valve；
117th, pressure test component；118th, oxygen flow meter；
120th, oxygen mixer；130th, oxygen content detector；
140th, blast furnace blower；150th, airflow pipe；
160th, nitrogen gas delivery-line；161st, nitrogen quick cut valve；
170th, oxygen compressor room.
Embodiment
With reference to the description of attached drawing and the specific embodiment of the invention, details of the invention can be clearly understood.But
It is the embodiment of invention described herein, is only used for explaining the purpose of the present invention, and cannot understands in any way
Into being limitation of the present invention.Under the teachings of the present invention, technical staff is contemplated that any possible change based on the present invention
Shape, these are regarded as belonging to the scope of the present invention.
Please refer to Fig.1, Fig. 2, it is defeated to include the oxygen that sequential series connect for oxygen-enriching device 100 before blast furnace machine proposed by the present invention
Pipeline 110, oxygen mixer 120, oxygen content detector 130 and blast furnace blower 140 are sent, is installed on oxygen conveying pipe 110
There are the flow control valve 111 and stop valve 112 that the direction order along oxygen conveying is set, connected in oxygen mixer 120 free
Letter shoot road 150, oxygen-enriching device 100 further includes control unit (not shown) before blast furnace machine, oxygen content detector 130,
It is electrically connected with flow control valve 111 with control unit.
Oxygen content detector 130 is used to detect through oxygen mixer in oxygen-enriching device 100 before blast furnace machine proposed by the present invention
After 120 mixing in pipeline internal mix gas oxygen concentration size, flow control valve 111 is used for control pipeline internal mix gas
The size of oxygen content in body；Meanwhile oxygen content detector 130 is connected with flow control valve 111 with control unit, passes through
Control unit realizes the chain of oxygen content detector 130 and flow control valve 111, and then can be according to pipeline internal mix gas
Oxygen concentration adjusts the aperture of flow control valve 111 in body, ensures that oxygen concentration is all the time in pre- in pipeline internal mix gas
Determine in scope.Specifically, when oxygen content detector 130 detects that oxygen content is relatively low in mixed gas in pipeline, i.e., oxygen is defeated
When sending the amount of oxygen of the offer of pipeline 110 less than the oxygen being actually needed, the aperture increase amount of oxygen of large flux control valve 111 is opened；
When the oxygen that oxygen content detector 130 detects that oxygen content is higher in mixed gas in pipeline, i.e., oxygen conveying pipe 110 provides
When tolerance is higher than the oxygen needed, turning down 111 aperture of flow control valve reduces amount of oxygen.
Oxygen content detector 130 is arranged on 120 He of oxygen mixer in oxygen-enriching device 100 before blast furnace machine proposed by the present invention
Between blast furnace blower 140, i.e., what oxygen content detector 130 was detected is the mixed gas before entering blast furnace blower 140
In oxygen concentration, adjust the aperture of flow control valve 111 in time according to testing result, ensure to enter blast furnace blower 140 it
Oxygen concentration in preceding mixed gas in preset range, prevents the gaseous mixture due to entering blast furnace blower 140 all the time
Oxygen concentration is excessive and trigger the security incidents such as fire in body, so as to ensure the safe operation of blast furnace blower 140.
In the present invention, control unit (not shown) can use the prior art, for example, control unit can be PLC
Controller (programmable logic controller (PLC)).
In an optional example of the invention, it is also equipped with oxygen between flow control valve 111 and stop valve 112 and cuts soon
Valve 113, blast furnace blower 140 and oxygen fast cut valve 113 are electrically connected with control unit.When the oxygen of mixed gas in pipeline contains
When measuring the failure of excessive or blast furnace blower 140, oxygen fast cut valve 113 can cut off oxygen conveying pipe 110 in time, avoid
The generation of security incident.Specifically, when the oxygen concentration that oxygen content detector 130 detects is more than 23.5%, control unit
Send alarm；When the oxygen concentration that oxygen content detector 130 detects reaches 24%, control unit needs chain closing oxygen fast
Cut valve 113；When 140 emergency shutdown of blast furnace blower or generation surge, control unit is also required to chain closing oxygen and cuts soon
Valve 113, plays the role of protection system.
In an optional example, oxygen fast cut valve 113 is pneumatic fast cut valve.
Further, oxygen fast cut valve 113 is Pneumatic butterfly valve.
In an optional example of the invention, oxygen interface and 110 phase of oxygen conveying pipe in oxygen mixer 120
Connection, after normobaric oxygen enters oxygen mixer 120 by oxygen conveying pipe 110, is sufficiently mixed with air, is then utilized
Tiny structure before 140 entrance of blast furnace blower enters blast furnace blower 140, so as to fulfill rich-oxygen of blast furnace.
In an optional example of the invention, oxygen-enriching device 100 further includes nitrogen gas delivery-line 160, nitrogen before blast furnace machine
Letter shoot road 160 is connected and is arranged between stop valve 112 and oxygen fast cut valve 113, nitrogen with oxygen conveying pipe 110
Nitrogen quick cut valve 161 is provided with conveyance conduit 160, nitrogen quick cut valve 161 is electrically connected with control unit.Nitrogen gas delivery-line
160 are arranged between stop valve 112 and oxygen fast cut valve 113, nitrogen are filled with after being shut down for blast furnace blower 140, in blast furnace
During damping down or fan parking, the replacement of oxygen in pipeline is emptied using nitrogen, avoids triggering because oxygen content is excessive
Fire etc., and then ensure the safety of whole pipeline and blast furnace blower；In addition, when blast furnace blower 140 normally starts, nitrogen is fast
Cut valve 161 to be closed, also should be filled with protection nitrogen into the nitrogen gas delivery-line 160 after nitrogen quick cut valve 161.
In an optional example of the invention, the gas pressure in nitrogen gas delivery-line 160 is more than oxygen conveying pipe
Gas pressure in 110, to reach the effect of sealing gland.
In an optional example, the pressure of the nitrogen in nitrogen gas delivery-line 160 is 0.8MPa.
Further, what is conveyed in oxygen conveying pipe 110 is less than the low oxygen of 0.8MPa for pressure.
In an optional example, the pressure of the air in airflow pipe is 0.05MPa.
In an optional example of the invention, spark arrester 114, spark arrester 114 are additionally provided with oxygen conveying pipe 110
It is arranged between nitrogen gas delivery-line 160 and oxygen fast cut valve 113, is further ensured that the safety of oxygen conveying pipe 110.
In an optional example of the invention, one end of oxygen conveying pipe 110 is connected with oxygen mixer 120, oxygen
The other end in letter shoot road 110 is connected with oxygen compressor room 170, and filter 115, mistake are additionally provided with oxygen conveying pipe 110
Filter 115 is installed between flow control valve 111 and oxygen compressor room 170.Filter 115 is used to remove the impurity in gas, makes
Gas is pure.
In an optional example of the invention, oxygen cutting valve 116, oxygen are also equipped with oxygen conveying pipe 110
Stop valve 116 is arranged between oxygen compressor room 170 and filter 115, and oxygen cutting valve 116 is electrically connected with control unit.Work as oxygen
When gas fast cut valve 113 is fully closed, control unit sends electric signal to oxygen cutting valve 116, and oxygen cutting valve 116 can be at 3~4 points
Oxygen system is cut off and (cuts off the connection between oxygen compressor room 170 and oxygen conveying pipe 110) in clock, is further ensured that life
Production safety.
In an optional example of the invention, pressure test component 117 and oxygen are additionally provided with oxygen conveying pipe 110
Air-flow gauge 118, pressure test component 117 include pressure transmitter and pressure gauge, pressure gauge and oxygen flow meter 118 with control
Unit processed is electrically connected.Wherein, pressure test component 117 is used to measure the gas pressure in oxygen conveying pipe 110, control in real time
Unit can be according to the aperture of the gas pressure adjustment flow control valve 111 in oxygen conveying pipe 110.Oxygen flow meter 118
For recording the uninterrupted of gas in oxygen conveying pipe 110 in real time, 118 maximum stream flow of oxygen flow meter is 13000Nm3/h
(mark cube), regular flow 8000-13000Nm3/ h (mark cube).
In an optional example of the invention, stop valve 112 is electrically connected for electronic stop valve and with control unit.
In an optional example, stop valve 112 is electric gate valve.
In an optional example of the invention, when an accident occurs, during such as 140 emergency shutdown of blast furnace blower, control
Unit is closed after receiving the shutdown electric signal of blast furnace blower 140 to oxygen fast cut valve 113 (also referred to as emergency stop valve) transmission
Electric signal, oxygen fast cut valve 113 are closed rapidly；After oxygen fast cut valve 113 completely closes, control unit is sent out to stop valve 112
Go out electric signal, stop valve 112 completely can cut off oxygen system at 3-4 minutes.Also, when oxygen fast cut valve 113 completely closes
When, control unit sends electric signal to nitrogen quick cut valve 161, and nitrogen quick cut valve 161 is opened, and nitrogen is immediately fed into.In above-mentioned mistake
Cheng Zhong, since stop valve 112 acts relatively slowly, in three minutes of its fully closed process, remaining partial oxygen can exhaust.Nitrogen is same
In the aspiration channel of Shi Liujin blast furnace blowers 140, the oxygen-enriched air in 140 aspiration channel of blast furnace blower is diluted.Stop valve 112
When fully closed, nitrogen stops being sent into.By nitrogen-sealed between oxygen fast cut valve 113 and stop valve 112, in this way, can prevent
Oxygen is revealed, and can prevent the accident caused by unit adverse current.In addition, when 140 emergency shutdown of blast furnace blower or breathe heavily
When shaking, nitrogen quick cut valve 161 is opened, and high pressure nitrogen is filled with, and the oxygen inside discharge line prevents the entrance of low oxygen at the same time,
Play the role of protection system.
In another optional example of the invention, stop valve 112 can also be hand off valve, it is necessary to be by receiving
Close stop valve 112.
Before blast furnace machine proposed by the present invention oxygen-enriching device 100 can increase the oxygen content in air blast, increase drum with this
Air quantity and ignition temperature, finally improve production efficiency.Oxygen-enriching device 100 can be with maximum limit before using blast furnace machine proposed by the present invention
Degree ground replaces metallurgical coke with cheap power coal dust, is the key technology for improving blast furnace, bof process vitality and competitiveness, and
Blast furnace service life can effectively be extended, so that the good economic benefit obtained.It is single due to burning before air port in oxygen-enriched air blast
The gas volume of air quantity and generation needed for the carbon amounts of position is reduced, thus can improve rate of driving, changes little situation in coke ratio
Under, the capacity factor of a blast furnace can be improved.Calculated by oxygen-enriched 1%, yield 4.76% can be improved after rich-oxygen of blast furnace in theory.
For explaining in detail for the respective embodiments described above, its purpose, which is only that, explains the present invention, in order to be able to
More fully understand the present invention, still, these descriptions cannot be particularly with any explanation into being limitation of the present invention,
Each feature described in different embodiments can also be mutually combined, so that other embodiment is formed, except having
Opposite description is specified, these features should be understood to can be applied in any one embodiment, and be not limited merely to
Described embodiment.
Claims (10)
1. oxygen-enriching device before a kind of blast furnace machine, it is characterised in that oxygen-enriching device includes sequential series connection before the blast furnace machine
Oxygen conveying pipe, oxygen mixer, oxygen content detector and blast furnace blower, are provided with along oxygen on the oxygen conveying pipe
The flow control valve and stop valve that the direction order of gas conveying is set, are communicated with airflow pipe in the oxygen mixer,
Oxygen-enriching device further includes control unit before the blast furnace machine, the oxygen content detector and the flow control valve with the control
Unit processed is electrically connected.
2. oxygen-enriching device before blast furnace machine as claimed in claim 1, it is characterised in that the flow control valve and the stop valve
Between be also equipped with oxygen fast cut valve, the oxygen fast cut valve and the blast furnace blower are electrically connected with described control unit.
3. oxygen-enriching device before blast furnace machine as claimed in claim 2, it is characterised in that oxygen-enriching device further includes before the blast furnace machine
Nitrogen gas delivery-line, the nitrogen gas delivery-line are connected with the oxygen conveying pipe and are arranged on the stop valve and described
Between oxygen fast cut valve, nitrogen quick cut valve is provided with the nitrogen gas delivery-line, the nitrogen quick cut valve and the control are single
Member is electrically connected.
4. oxygen-enriching device before blast furnace machine as claimed in claim 3, it is characterised in that the gas pressure in the nitrogen gas delivery-line
Power is more than the gas pressure in the oxygen conveying pipe.
5. oxygen-enriching device before blast furnace machine as claimed in claim 4, it is characterised in that the gas pressure in the nitrogen gas delivery-line
Power is 0.8MPa.
6. oxygen-enriching device before blast furnace machine as claimed in claim 3, it is characterised in that be additionally provided with the oxygen conveying pipe
Spark arrester, the spark arrester are arranged between the nitrogen gas delivery-line and the oxygen fast cut valve.
7. oxygen-enriching device before blast furnace machine as claimed in claim 2, it is characterised in that one end of the oxygen conveying pipe and institute
State oxygen mixer to be connected, the other end of the oxygen conveying pipe is connected with oxygen compressor room, goes back on the oxygen conveying pipe
Filter is provided with, the filter is installed between the flow control valve and the oxygen computer room.
8. oxygen-enriching device before blast furnace machine as claimed in claim 7, it is characterised in that be also equipped with the oxygen conveying pipe
Oxygen cutting valve, the oxygen cutting valve are arranged between the oxygen compressor room and the filter, the oxygen cutting valve with
Described control unit is electrically connected.
9. oxygen-enriching device before blast furnace machine as claimed in claim 1, it is characterised in that be additionally provided with the oxygen conveying pipe
Pressure test component and oxygen flow meter, the pressure test component include pressure transmitter and pressure gauge, the pressure gauge and
The oxygen flow meter is electrically connected with described control unit.
10. oxygen-enriching device before blast furnace machine as claimed in claim 1, it is characterised in that the stop valve is electronic stop valve, institute
Electronic stop valve is stated to be electrically connected with described control unit.
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| CN201711444328.2A CN107955848B (en) | 2017-12-27 | 2017-12-27 | Oxygen enrichment device in front of blast furnace machine |
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| CN201711444328.2A CN107955848B (en) | 2017-12-27 | 2017-12-27 | Oxygen enrichment device in front of blast furnace machine |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111117685A (en) * | 2019-12-31 | 2020-05-08 | 上海轻叶能源股份有限公司 | Oxygen-enriched air blast management system in front of catalytic cracker |
| CN111470477A (en) * | 2020-04-07 | 2020-07-31 | 上海轻叶能源股份有限公司 | Sulfur recovery Claus furnace oxygen-enriched air blast management system and method |
| CN111607672A (en) * | 2019-02-23 | 2020-09-01 | 安阳市新普钢铁有限公司 | Oxygen enrichment process in front of blast furnace |
| CN112555886A (en) * | 2020-12-07 | 2021-03-26 | 青岛大学 | Low-pressure oxygen mixing combustion-supporting device of burner |
| CN112797440A (en) * | 2021-01-15 | 2021-05-14 | 山东京博石油化工有限公司 | Oxygen-enriched combustion control system of heating furnace and control method thereof |
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