CN205473853U - Oxygenating apparatus before blast furnace axial fan machine - Google Patents
Oxygenating apparatus before blast furnace axial fan machine Download PDFInfo
- Publication number
- CN205473853U CN205473853U CN201620247421.9U CN201620247421U CN205473853U CN 205473853 U CN205473853 U CN 205473853U CN 201620247421 U CN201620247421 U CN 201620247421U CN 205473853 U CN205473853 U CN 205473853U
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- Prior art keywords
- oxygen
- valve
- axial fan
- blast furnace
- nitrogen
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Abstract
The utility model provides an oxygenating apparatus before blast furnace axial fan machine for the oxygenating apparatus structure is complicated in solving prior art, and the operation is inconvenient, problem with high costs. The device includes the oxygen person in charge, oxygen is responsible for and is equipped with filter, worm gear drive butterfly valve I, pneumatic control valve, quick action emergency valve, spark arrester and oxygen blender in proper order, be equipped with the nitrogen gas pipeline on the pipeline between quick action emergency valve and the spark arrester, oxygen still is equipped with the oxygen bypass pipe on being responsible for, can open the bypass return circuit during plant failure, increases the stability and the reliability of device. Nitrogen buffer tank is set up on the nitrogen gas pipeline, pipe network pressure can be be used for balanceing when starting security personnel nitrogen system, adopt the mode of oxygen boosting before the axial fan machine, directly deliver to the axial fan entry with the low pressure oxygen of fractionating tower system output, improve the oxygen content in the axial fan intake air, by the substituting oxygen compressor compress of axial fan, very big saving the energy consumption.
Description
Technical field
This utility model belongs to steel smelting equipment technical field, is specifically related to oxygen-enriched dress before a kind of blast furnace axial flow blower machine
Put.
Background technology
Rich-oxygen of blast furnace offering oxygen way is divided into three kinds, and the first is oxygen supply before the blower, will oxygen send into aerator inlet scoop and
Air blast is pressurizeed together, in supply air system enters blast-furnace tuyere；The second way is oxygen supply after machine, is i.e. responsible for from blower fan in air blast
After out, in the front somewhere of vent valve, being added by oxygen, and cold wind mixes in heated feeding stove, this is most domestic factory
The way that family uses, the third reality is also oxygen supply after machine, is mixed by oxygen coal gun and coal dust at table, before direct sending air port, mesh
Be improve regional area oxygen concentration, currently used less.The current domestic smelting industry oxygen-enriched mode of commonly used the second, i.e.
The high pressure oxygen of the 3.0MPa from oxygen compressor enters cold air duct after twice is decompressed to 0.6MPa.But, existing
Oxygen-enriching device structure is complicated, operation inconvenience, and cost is high, and only one main pipeline, one of them failsafe valve on supervisor
Time, whole device just cannot be properly functioning.
Utility model content
The utility model proposes oxygen-enriching device before a kind of blast furnace axial flow blower machine, solve oxygen-enriching device knot in prior art
Structure is complicated, operation inconvenience, the problem that cost is high.
The technical solution of the utility model is achieved in that
Oxygen-enriching device before a kind of blast furnace axial flow blower machine, is responsible for including oxygen, and described oxygen supervisor is sequentially provided with filtration
Device, worm gear drive butterfly valve I, pneumatic control valve, quick action emergency valve, spark arrester and oxygen mixer, described quick action emergency valve and resistance
Pipeline between firearm is provided with nitrogen pipeline, and described oxygen supervisor is additionally provided with oxygen bypass pipe, and oxygen bypass pipe is provided with
Worm gear drive butterfly valve II.
Be sequentially provided with stop valve I, pneumatic ball valve, stop valve II and check-valves on described nitrogen pipeline, at pneumatic ball valve and
It is provided with nitrogen buffer tank between stop valve II.
One of them junction point of described oxygen bypass pipe and oxygen supervisor be positioned at filter and worm gear drive butterfly valve I it
Between, described oxygen bypass pipe is positioned at quick action emergency valve and nitrogen pipeline and oxygen supervisor's with another junction point of oxygen supervisor
Between junction point.
The beneficial effects of the utility model are: 1, the mode that this utility model patent is oxygen-enriched before using axial flow blower machine, will
The low oxygen of fractionating column system output is fed directly to axial flow blower entrance, and the oxygen improved in axial flow blower intake air contains
Amount, is substituted oxygen compressor by axial flow blower and is compressed, saved energy consumption greatly.2, this utility model arranges oxygen bypass
Loop, can open bypass circulation during plant failure, increase stability and the reliability of device.3, nitrogen pipeline of the present utility model
On nitrogen buffer tank is set, can be used to balance ductwork pressure when starting security personnel's nitrogen system；And only have before security personnel's nitrogen pipeline
Return valve, Nitrogen pipe network decompression can be avoided to cause the parking of oxygen-enriching device.4, actual industrial use in, the flow of device and
Pressure trend is consistent, and device does not exist the situation of superpressure simultaneously, and the pressure of this device is intended only as a monitoring point and deposits
?.So, this utility model decreases the quantity of Pneumatic butterfly valve, also simplify operation while reducing cost, and device is stably transported
After row, system can put into auto-programming running status.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, the accompanying drawing in describing below is only
It is embodiments more of the present utility model, for those of ordinary skill in the art, in the premise not paying creative work
Under, it is also possible to other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is the structural representation of oxygen-enriching device before this utility model blast furnace axial flow blower machine.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under paying creative work premise
The every other embodiment obtained, broadly falls into the scope of this utility model protection.
As it is shown in figure 1, oxygen-enriching device before a kind of blast furnace axial flow blower machine, it is responsible for including oxygen, described oxygen supervisor depends on
Secondary it is provided with filter 1, worm gear drive butterfly valve I 2, pneumatic control valve 3, quick action emergency valve 4, spark arrester 6 and oxygen mixer 7, its
In, worm gear drive butterfly valve I 2, pneumatic control valve 3, quick action emergency valve 4 are controlled by control system, and oxygen mixer 7 uses by solid
The mixed cell element being scheduled in equipment, makes oxygen retrained by hybrid element through blender, produce shunting, interflow,
Rotate, enable oxygen sufficiently to mix；Filter and spark arrester are used for ensureing to send the safety of oxygen process.
Being additionally provided with oxygen bypass pipe on oxygen supervisor, oxygen bypass pipe is provided with worm gear drive butterfly valve II 5, worm gear drive butterfly
Valve II 5 and worm gear drive butterfly valve I 2, pneumatic control valve 3, quick action emergency valve 4 form a regulation valve group, and this regulation valve group is controlled
In control system；Pipeline between quick action emergency valve 4 and spark arrester 6 is provided with nitrogen pipeline, nitrogen pipeline is sequentially provided with and cuts
Only valve I 8, pneumatic ball valve 9, stop valve II 11 and check-valves 12, is provided with nitrogen buffering between pneumatic ball valve 9 and stop valve II 11
Tank 10；One of them junction point of oxygen bypass pipe and oxygen supervisor is between filter 1 and worm gear drive butterfly valve I 2, described
Oxygen bypass pipe is positioned at, with another junction point of oxygen supervisor, the junction point that quick action emergency valve and nitrogen pipeline are responsible for oxygen
Between.
When plant running, low oxygen through filter, worm gear drive butterfly valve I, pneumatic control valve, quick action emergency valve and
Spark arrester enters oxygen mixer, enters axial flow blower entrance after full and uniform mixing.Run into urgent during use
During emergency situations, system interlock protection program starts, and closes quick action emergency valve, opens pneumatic ball valve simultaneously and starts nitrogen protection dress
Put.
Before this utility model blast furnace axial flow blower machine, oxygen-enriching device control system uses Siemens S7-300 series of PLC conduct
Control station, control system can detect each control point parameter and the operation of operated pneumatic valve and can complete the chain guarantor of control system
Protect program.
The mode that this utility model is oxygen-enriched before using axial flow blower machine, directly send the low oxygen of fractionating column system output
To axial flow blower entrance, improve the oxygen content in axial flow blower intake air, axial flow blower substitute oxygen compressor and carry out
Compression, has saved energy consumption greatly.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all at this
Within the spirit of utility model and principle, any modification, equivalent substitution and improvement etc. made, should be included in this utility model
Protection domain within.
Claims (3)
1. an oxygen-enriching device before blast furnace axial flow blower machine, is responsible for including oxygen, it is characterised in that: on described oxygen supervisor successively
It is provided with filter (1), worm gear drive butterfly valve I (2), pneumatic control valve (3), quick action emergency valve (4), spark arrester (6) and oxygen mixed
Clutch (7), the pipeline between described quick action emergency valve (4) and spark arrester (6) is provided with nitrogen pipeline, and described oxygen supervisor is upper also
Being provided with oxygen bypass pipe, oxygen bypass pipe is provided with worm gear drive butterfly valve II (5).
Oxygen-enriching device before blast furnace axial flow blower machine the most according to claim 1, it is characterised in that: depend on described nitrogen pipeline
Secondary it is provided with stop valve I (8), pneumatic ball valve (9), stop valve II (11) and check-valves (12), at pneumatic ball valve (9) and stop valve II
(11) nitrogen buffer tank (10) it is provided with between.
Oxygen-enriching device before blast furnace axial flow blower machine the most according to claim 1, it is characterised in that: described oxygen bypass pipe with
Oxygen supervisor one of them junction point be positioned between filter (1) and worm gear drive butterfly valve I (2), described oxygen bypass pipe and
Another junction point of oxygen supervisor is positioned between the junction point of quick action emergency valve (4) and nitrogen pipeline and oxygen supervisor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620247421.9U CN205473853U (en) | 2016-03-29 | 2016-03-29 | Oxygenating apparatus before blast furnace axial fan machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620247421.9U CN205473853U (en) | 2016-03-29 | 2016-03-29 | Oxygenating apparatus before blast furnace axial fan machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205473853U true CN205473853U (en) | 2016-08-17 |
Family
ID=56648458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620247421.9U Expired - Fee Related CN205473853U (en) | 2016-03-29 | 2016-03-29 | Oxygenating apparatus before blast furnace axial fan machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205473853U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106755669A (en) * | 2016-12-14 | 2017-05-31 | 四川德胜集团钒钛有限公司 | Machine oxygen enriching process before a kind of blast furnace |
| CN106755678A (en) * | 2016-12-14 | 2017-05-31 | 四川德胜集团钒钛有限公司 | Oxygen enrichment system before a kind of blast furnace machine |
| 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 |
-
2016
- 2016-03-29 CN CN201620247421.9U patent/CN205473853U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106755669A (en) * | 2016-12-14 | 2017-05-31 | 四川德胜集团钒钛有限公司 | Machine oxygen enriching process before a kind of blast furnace |
| CN106755678A (en) * | 2016-12-14 | 2017-05-31 | 四川德胜集团钒钛有限公司 | Oxygen enrichment system before a kind of blast furnace machine |
| 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20190329 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |