CN106755678A - Oxygen enrichment system before a kind of blast furnace machine - Google Patents
Oxygen enrichment system before a kind of blast furnace machine Download PDFInfo
- Publication number
- CN106755678A CN106755678A CN201611154336.9A CN201611154336A CN106755678A CN 106755678 A CN106755678 A CN 106755678A CN 201611154336 A CN201611154336 A CN 201611154336A CN 106755678 A CN106755678 A CN 106755678A
- Authority
- CN
- China
- Prior art keywords
- oxygen
- valve
- interface
- air
- enrichment system
- 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.)
- Pending
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B9/00—Stoves for heating the blast in blast furnaces
Abstract
The present invention discloses oxygen enrichment system before a kind of blast furnace machine, including：Oxygen-enriched pipeline, blender, air cleaner, air blower, hot-blast stove and blast furnace before oxygen generator, machine；The blender includes first interface, second interface and the 3rd interface, the first interface is with the oxygen generator by oxygen-enriched pipeline communication before the machine, the second interface is connected with the air cleaner, 3rd interface is connected with the air blower, the air blower is connected with the hot-blast stove by discharge pipe, and the hot-blast stove is connected with the blast furnace；Oxygen intake stop valve, oxygen pressure regulating valve, oxygen flow rate adjusting valve, repid cut-off valve, oxygen flow meter are set gradually before the machine on oxygen-enriched pipeline；Carbon monoxide content analyzer and oxygen content analyzer are set on the discharge pipe.The system is not required to that oxygen is carried out to repeat boosting, step-down, it is easy to oxygen content in monitoring system pipeline, safe, simple operation.
Description
Technical field
The present invention relates to ironmaking technology field, and in particular to oxygen enrichment system before a kind of blast furnace machine.
Background technology
In order to improve blast-melted yield, the production cost of blast furnace is reduced, large blast furnace in the world is all used mostly
The technology of oxygen-rich smelting, can effectively improve blast fumance efficiency, reduce coke ratio.
The low oxygen that oxygen-rich smelting typically goes out tower using oxygen processed enters spherical tank through the pressurization of compressor machine, through oxygen pressure regulator valve processed
Group is decompressed to and is delivered to blast furnace, then through blast furnace pressure regulation valve group decompression with blower fan be pressurized after air mix carry out it is oxygen-enriched, weighing
A large amount of electric energy are consumed during multiple boosting, step-down, energy waste is caused, smelting cost cost is increased.Simultaneously.Repeat to rise
Conveying high-pressure oxygen during pressure, step-down, is easy to because oxygen gas flow rate is excessive in the moment of valve opening, and pipeline combustion occurs
Burning, explosion accident.
The content of the invention
In view of this, this application provides oxygen enrichment system before a kind of blast furnace machine, the system is not required to repeat oxygen
Boosting, step-down, it is easy to oxygen content in monitoring system pipeline, safe, simple operation.
To solve above technical problem, the technical scheme that the present invention is provided is oxygen enrichment system before a kind of blast furnace machine, including：Oxygen
Oxygen-enriched pipeline, blender, air cleaner, air blower, hot-blast stove and blast furnace before gas generating means, machine；The blender includes
First interface, second interface and the 3rd interface, the first interface is with the oxygen generator by oxygen-enriched pipe before the machine
Road is connected, and the second interface is connected with the air cleaner, and the 3rd interface is connected with the air blower, the air blast
Machine is connected with the hot-blast stove by discharge pipe, and the hot-blast stove is connected with the blast furnace；Before the machine on oxygen-enriched pipeline successively
Oxygen intake stop valve, oxygen pressure regulating valve, oxygen flow rate adjusting valve, repid cut-off valve, oxygen flow meter are set；It is described go out
Carbon monoxide content analyzer and oxygen content analyzer are set on airduct.
Preferably, the air blower, the oxygen pressure regulating valve, the oxygen flow rate adjusting valve, the fast shut-off
Valve, the oxygen flow meter, the carbon monoxide content analyzer and the oxygen content analyzer are all connected with PLC.
Preferably, the air cleaner is made up of air dryer and the air dust remover, the second interface according to
It is secondary to be connected with the air dust remover, the air dryer.
Preferably, oxygen filter is set before the oxygen intake stop valve and the oxygen pressure regulating valve.
Preferably, the oxygen filter filter screen is 80 mesh.
Preferably, the oxygen intake stop valve, the oxygen pressure regulating valve, the air-flow adjustable valve and described fast
Fast stop valve two ends set spark arrester.
Preferably, the spark arrester is red copper material.
Preferably, bypass first bypasses branch pipe between the oxygen intake stop valve, the oxygen pressure regulating valve, described
Diffusion valve is set on first bypass branch pipe.
Preferably, the oxygen intake stop valve, the oxygen pressure regulating valve, the air-flow adjustable valve and described fast
Fast shut-off valve body is carbon steel material, and valve is stainless steel lining tetrafluoro valve, and type of attachment is flange connection.
Preferably, bypass second bypasses branch pipe, the bypass the between the repid cut-off valve and the oxygen flow meter
Two bypass branch pipes are connected with outer net nitrogen pipeline.
Preferably, check-valves and Quick open valve are set gradually on the second bypass branch pipe.
Preferably, the check-valves and the Quick open valve are all connected with the PLC.
Preferably, the check-valves and the Quick open valve are carbon steel material, and valve is stainless steel lining tetrafluoro valve
Door, type of attachment is flange connection.
Preferably, oxygen-enriched pipeline, the discharge pipe, the first bypass branch pipe and the second bypass branch pipe before the machine
It is welded still pipe.
Compared with prior art, its detailed description is as follows for the application：
It is herein described oxygen intake stop valve, the oxygen pressure regulating valve, the air-flow adjustable valve, described quick
Check-valves described in stop valve and the Quick open valve valve body are carbon steel material, and valve is stainless steel lining tetrafluoro valve, even
The form of connecing is flange connection, oxygen-enriched pipeline, the discharge pipe, the first bypass branch pipe and second bypass before the machine
Branch pipe is welded still pipe, and sets spark arrester and oxygen filter, it is to avoid because oxygen gas flow rate is excessive, pipeline burning occurs, protects
Card accident, improves oxygen enrichment system security before the blast furnace machine.
Herein described air blower, the oxygen pressure regulating valve, the oxygen flow rate adjusting valve, the fast shut-off
Valve, the oxygen flow meter, the carbon monoxide content analyzer, the oxygen content analyzer, the check-valves and described
Quick open valve is all connected with the PLC, can be to wind-warm syndrome, oxygen flow meter flow, carbon monoxide content in air blower point
The detection of the carbon monoxide content of analyzer, the oxygen content of the oxygen content analyzer, to the oxygen pressure regulating valve, institute
The control of oxygen flow rate adjusting valve, the repid cut-off valve, the check-valves and the Quick open valve is stated, the blast furnace is improved
The security of oxygen enrichment system, simple operation before machine.
The application sets oxygen intake stop valve, oxygen pressure regulating valve, oxygen flow rate adjusting valve, repid cut-off valve, oxygen
Air-flow gauge, and the first bypass with diffusion valve is set between the oxygen intake stop valve, the oxygen pressure regulating valve
Branch pipe, oxygen-enriched pipeline pressure stabilization, the accuracy controlling of flow before machine are not required to that oxygen is carried out to repeat boosting, step-down；It is described quick
The second bypass branch pipe that bypass is connected with outer net nitrogen pipeline between stop valve and the oxygen flow meter, further improves described
The security of oxygen enrichment system before blast furnace machine.
The application sets the air cleaner and is made up of air dryer and the air dust remover, and external air is through sky
The air of the dried and clean that gas dryer is obtained after air dust remover dedusting again after drying enters described through the second interface
Blender, the air of the dried and clean and oxygen the internal mixer through whirlwind, multiple spot water conservancy diversion, come and go baffling, fully
It is well mixed, it is ensured that it is mixed uniformly oxygen rich gas to enter installation for blast furnace gas, improves the peace of oxygen enrichment system before the blast furnace machine
Quan Xing, improves blast furnace process efficiency.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of oxygen enrichment system before blast furnace machine of the present invention.
Specific embodiment
In order that those skilled in the art more fully understands technical scheme, with reference to specific embodiment pair
The present invention is described in further detail.
As shown in figure 1, oxygen enrichment system before a kind of blast furnace machine, including：Oxygen-enriched pipeline 2, mixing before oxygen generator 1, machine
Device 3, air cleaner 4, air blower 5, hot-blast stove 6 and blast furnace 7；The blender 3 includes first interface 8, second interface 9 and the
Three interfaces 10, the first interface 8 is connected with the oxygen generator 1 by oxygen-enriched pipeline 2 before the machine, and described second connects
Mouthfuls 9 are connected with the air cleaner 4, and the 3rd interface 10 is connected with the air blower 5, the air blower 5 and the heat
Wind furnace 5 is connected by discharge pipe 11, and the hot-blast stove 6 is connected with the blast furnace 7；Set gradually on oxygen-enriched pipeline 2 before the machine
Oxygen intake stop valve 12, oxygen pressure regulating valve 13, oxygen flow rate adjusting valve 14, repid cut-off valve 15, oxygen flow meter 16；
Carbon monoxide content analyzer 17 and oxygen content analyzer 18 are set on the discharge pipe.
The air cleaner 4 is made up of air dryer 19 and the air dust remover 20, and the second interface 9 is successively
19 are connected with the air dust remover 20, the air dryer.The oxygen intake stop valve 12 and the oxygen pressure are adjusted
Oxygen filter 21 is set before section valve 13, and the 21 oxygen filter filter screen is 80 mesh.The oxygen intake stop valve 12, institute
State oxygen pressure regulating valve 13, the air-flow adjustable valve 14 and the two ends of the repid cut-off valve 15 and spark arrester 22 is set, it is described
Spark arrester 22 is red copper material.Bypass first is bypassed between the oxygen intake stop valve 12, the oxygen pressure regulating valve 13
Branch pipe 23, diffusion valve 24 is set on the first bypass branch pipe 23.The repid cut-off valve 15 and the oxygen flow meter 16 it
Between bypass second bypass branch pipe 25, it is described bypass second bypass branch pipe 25 connect with outer net nitrogen pipeline, it is described second bypass
Check-valves 26 and Quick open valve 27 are set gradually on pipe 25.The air blower 5, the oxygen pressure regulating valve 13, the oxygen
Air-flow adjustable valve 14, the repid cut-off valve 15, the oxygen flow meter 16, the carbon monoxide content analyzer 17, institute
State oxygen content analyzer 18, the check-valves 26 and the Quick open valve 27 and be all connected with the PLC 28.
It is the oxygen intake stop valve 12, the oxygen pressure regulating valve 13, the air-flow adjustable valve 14, described quick
Stop valve 15, non-return/26 and the valve body of the Quick open valve 27 are carbon steel material, and valve is stainless steel lining tetrafluoro valve
Door, type of attachment is flange connection.Oxygen-enriched pipeline 2, the discharge pipe 11, the first bypass branch pipe 23 and the institute before the machine
State the second bypass branch pipe 25 and be welded still pipe.
The above is only the preferred embodiment of the present invention, it is noted that it is right that above-mentioned preferred embodiment is not construed as
Limitation of the invention, protection scope of the present invention should be defined by claim limited range.For the art
For those of ordinary skill, without departing from the spirit and scope of the present invention, some improvements and modifications can also be made, these change
Enter and retouch and also should be regarded as protection scope of the present invention.
Claims (10)
1. oxygen enrichment system before a kind of blast furnace machine, it is characterised in that including：Oxygen-enriched pipeline before oxygen generator, machine, blender,
Air cleaner, air blower, hot-blast stove and blast furnace；The blender includes first interface, second interface and the 3rd interface, described
First interface is with the oxygen generator by oxygen-enriched pipeline communication, the second interface and the air filtration before the machine
Device is connected, and the 3rd interface is connected with the air blower, and the air blower is connected with the hot-blast stove by discharge pipe, described
Hot-blast stove is connected with the blast furnace；Set gradually on oxygen-enriched pipeline before the machine oxygen intake stop valve, oxygen pressure regulating valve,
Oxygen flow rate adjusting valve, repid cut-off valve, oxygen flow meter；Carbon monoxide content analyzer and oxygen are set on the discharge pipe
Content analyzer.
2. oxygen enrichment system before machine according to claim 1, it is characterised in that the air blower, oxygen pressure regulation
Valve, the oxygen flow rate adjusting valve, the repid cut-off valve, the oxygen flow meter, the carbon monoxide content analyzer and
The oxygen content analyzer is all connected with PLC.
3. oxygen enrichment system before machine according to claim 1, it is characterised in that the air cleaner by air dryer and
The air dust remover composition, the second interface is connected with the air dust remover, the air dryer successively.
4. oxygen enrichment system before machine according to claim 1, it is characterised in that the oxygen intake stop valve and the oxygen
Oxygen filter is set before pressure-regulating valve.
5. oxygen enrichment system before machine according to claim 4, it is characterised in that the oxygen filter filter screen is 80 mesh.
6. oxygen intake stop valve, the oxygen pressure regulating valve, the air-flow adjustable valve and the repid cut-off valve described in
Two ends set spark arrester.
7. oxygen enrichment system before machine according to claim 1, it is characterised in that the oxygen intake stop valve, the oxygen
Bypass first bypasses branch pipe between pressure-regulating valve, and diffusion valve is set on the first bypass branch pipe.
8. oxygen enrichment system before machine according to claim 1, it is characterised in that the oxygen intake stop valve, the oxygen
Pressure-regulating valve, the air-flow adjustable valve and the fast shut-off valve body are carbon steel material, and valve is stainless steel lining
Tetrafluoro valve, type of attachment is flange connection.
9. oxygen enrichment system before machine according to claim 1, it is characterised in that the repid cut-off valve and the oxygen flow
Bypass second bypasses branch pipe between meter, and the bypass branch pipe of the bypass second is connected with outer net nitrogen pipeline.
10. oxygen enrichment system before machine according to claim 9, it is characterised in that set gradually on the second bypass branch pipe
Check-valves and Quick open valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611154336.9A CN106755678A (en) | 2016-12-14 | 2016-12-14 | Oxygen enrichment system before a kind of blast furnace machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611154336.9A CN106755678A (en) | 2016-12-14 | 2016-12-14 | Oxygen enrichment system before a kind of blast furnace machine |
Publications (1)
| Publication Number | Publication Date |
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| CN106755678A true CN106755678A (en) | 2017-05-31 |
Family
ID=58888698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611154336.9A Pending CN106755678A (en) | 2016-12-14 | 2016-12-14 | Oxygen enrichment system before a kind of blast furnace machine |
Country Status (1)
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| CN (1) | CN106755678A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107238085A (en) * | 2017-06-30 | 2017-10-10 | 中国恩菲工程技术有限公司 | Liquid waste molten bath submerged combustion gun system |
| CN107354254A (en) * | 2017-07-31 | 2017-11-17 | 中冶华天南京电气工程技术有限公司 | Oxygen-enriched system and the control method of oxygen enrichment percentage before a kind of blast furnace machine |
| CN107436096A (en) * | 2017-08-04 | 2017-12-05 | 开封中新洁能科技有限公司 | Energy-conservation oxygen system for agglomerating plant |
| CN107955848A (en) * | 2017-12-27 | 2018-04-24 | 北京京诚科林环保科技有限公司 | Oxygen-enriching device before a kind of blast furnace machine |
| 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 |
| 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 |
| 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 |
| CN113670071A (en) * | 2021-07-27 | 2021-11-19 | 中冶长天国际工程有限责任公司 | Step oxygen supply system for gas combustion and adjusting method |
| CN116300677A (en) * | 2023-03-23 | 2023-06-23 | 沈阳科维润工程技术有限公司 | Device for uniformly regulating local oxygen-enriched furnace condition of blast furnace tuyere and application method thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107238085A (en) * | 2017-06-30 | 2017-10-10 | 中国恩菲工程技术有限公司 | Liquid waste molten bath submerged combustion gun system |
| CN107354254A (en) * | 2017-07-31 | 2017-11-17 | 中冶华天南京电气工程技术有限公司 | Oxygen-enriched system and the control method of oxygen enrichment percentage before a kind of blast furnace machine |
| CN107436096A (en) * | 2017-08-04 | 2017-12-05 | 开封中新洁能科技有限公司 | Energy-conservation oxygen system for agglomerating plant |
| CN107955848A (en) * | 2017-12-27 | 2018-04-24 | 北京京诚科林环保科技有限公司 | Oxygen-enriching device before a kind of blast furnace machine |
| CN107955848B (en) * | 2017-12-27 | 2024-03-01 | 北京京诚科林环保科技有限公司 | Oxygen enrichment device in front of blast furnace machine |
| 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 |
| 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 |
| 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 |
| CN113670071A (en) * | 2021-07-27 | 2021-11-19 | 中冶长天国际工程有限责任公司 | Step oxygen supply system for gas combustion and adjusting method |
| CN113670071B (en) * | 2021-07-27 | 2023-06-23 | 中冶长天国际工程有限责任公司 | Cascade oxygen supply system for gas combustion and adjusting method |
| CN116300677A (en) * | 2023-03-23 | 2023-06-23 | 沈阳科维润工程技术有限公司 | Device for uniformly regulating local oxygen-enriched furnace condition of blast furnace tuyere and application method thereof |
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Application publication date: 20170531 |