CN205893297U - Oxygen boosting system before blast furnace machine - Google Patents
Oxygen boosting system before blast furnace machine Download PDFInfo
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- CN205893297U CN205893297U CN201620848423.3U CN201620848423U CN205893297U CN 205893297 U CN205893297 U CN 205893297U CN 201620848423 U CN201620848423 U CN 201620848423U CN 205893297 U CN205893297 U CN 205893297U
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- oxygen
- blast furnace
- enrichment system
- blower fan
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Abstract
The utility model discloses an oxygen boosting system before blast furnace machine, including oxygen generating apparatus, fan and blast furnace, its characterized in that, the oxygen that makes of oxygen generating apparatus pass through oxygen and be responsible for output, oxygen is responsible for and is divided the expenditure a plurality of oxygen branch pipes, every way oxygen lateral duct is to the fan and the blast furnace of difference, every way oxygen branch connection obtains mixing oxygen -rich gas to different blenders and air intensive mixing, mixes oxygen -rich gas and carries to the sunction inlet of fan, the air outlet of fan is connected to the blast furnace. The oxygen boosting system before blast furnace machine equipment of having retrencied, reduce the work consumption, reduction in production cost, economic benefits considerable can also reach energy saving and emission reduction's purpose.
Description
Technical field
This utility model is related to rich-oxygen of blast furnace technique for blast field, oxygen enrichment system before more particularly, to a kind of blast furnace machine.
Background technology
At present blast furnace thermal compensation is mainly and improves blast furnace air pathogenic wind-warm or improve oxygen content in blast furnace air although mesh
Front adopt blast air and gas double pre-heating to improve pathogenic wind-warm, but effect is limited, and adopts rich-oxygen of blast furnace air blast then simple and easy to do,
High financial profit.Blast furnace adopts oxygen-enriched air blast, increased the content of oxygen in air blast, is equivalent to and increased the blow rate required, also just carries
The high rate of driving of blast furnace, more importantly oxygen-enriched air blast can improve the ignition temperature before blast-furnace tuyere, to blast furnace with big
Amount heat compensation, thus increasing injecting coal quantity further to blast furnace to create condition, general oxygen enrichment percentage improves 1% can make pulverized coal injection
Rate of blowing increases by 6%, and oxygen enrichment percentage improves 3～4% and is equivalent to 200 DEG C of air blast pathogenic wind-warm raising.Existing rich-oxygen of blast furnace air blast is generally adopted
With oxygen-enriched mode after blast furnace blower machine, oxygen processed goes out the low oxygen of tower 15kpa-20kpa through Oxygen turbocompressor or piston
Formula compressor machine is forced into 3.0mpa and enters spherical tank, is decompressed to 1.6mpa through oxygen pressure regulation valve group processed and is delivered to blast furnace, then through blast furnace
The air that is decompressed to after the supercharging of 0.6mpa and blower fan of pressure regulation valve group mix carry out oxygen-enriched, repeating to boost, during blood pressure lowering
Consume a large amount of electric energy, cause energy waste, increased steel-making cost.
Utility model content
Technical problem to be solved in the utility model and the technical assignment proposing are that prior art is improved, and provide
Oxygen enrichment system before a kind of blast furnace machine, solves in current technology using by the way of oxygen-enriched after blast furnace blower machine, exists and repeat boosting, drop
The process of pressure, consumes mass energy, the high problem of production cost.
For solving above technical problem, the technical solution of the utility model is:
Oxygen enrichment system before a kind of blast furnace machine, including oxygen generator, blower fan and blast furnace it is characterised in that described oxygen
The oxygen that gas generating meanss are obtained is responsible for output by oxygen, and oxygen supervisor branches out some oxygen manifold, and every road oxygen props up
To different blower fans and blast furnace, every road oxygen manifold connects to be sufficiently mixed to different blenders and air and obtains mixing richness Gutron
Carrier of oxygen, mixing oxygen rich gas is delivered to the suction inlet of blower fan, and the air outlet of blower fan connects to blast furnace.Described in the utility model
Before blast furnace machine oxygen enrichment system by oxygen generator be obtained 15kpa-20kpa low oxygen be transported to through oxygen manifold mixed
Clutch and air are sufficiently mixed the suction inlet entering blower fan, are delivered to the oxygen-enriched air after being sufficiently mixed using blower fan natural air suction
Blast furnace uses, and so original oxygen generating station be used for pressurizeing compressor of this partial oxidation amount can shut down, save substantial amounts of
Energy consumption, high financial profit, reduces production cost additionally it is possible to reach the purpose of energy-saving and emission-reduction.
Further, described oxygen supervisor and oxygen manifold are provided with spark arrester, improve safety in utilization, it is to avoid go out
The situation of existing combustion explosion.Oxygen content close relation in ignition point and oxygen-enriched air, that is, in oxygen-enriched air, oxygen content is healed
Then its ignition point is lower for height, increases that then its ignition temperature is also lower with oxygen-enriched air pressure, and rich-oxygen of blast furnace air blast adopts machine
When the more important of front hybrid mode is that oxygen is mixed in the air, should prevent because oxygen mix uneven, local oxygen concentration
Too high and the burning that causes or blast.
Further, described oxygen manifold arranges filter.
Further, described oxygen supervisor and oxygen manifold are provided with effusion meter, precise control oxygen-rich concentration.
Further, described oxygen supervisor is provided with deafener, reduces operating noise.
Further, the air intake of described blender is connected with air dehumidifying device.
Further, between described blender and blower fan suction inlet, the length of connecting pipe is more than blower fan intet diameter
3 times it is ensured that pure oxygen can be sufficiently mixed with air.
Further, the connecting pipe between described blender and blower fan is provided with oxygen laser analyzer detection oxygen
Concentration, improves production security.
Further, the connecting pipe between described blower fan and blast furnace is provided with coal gas laser analyzer detection coal gas
Concentration, improves production security.
Compared with prior art, this utility model advantage is:
Before blast furnace machine described in the utility model, oxygen enrichment system has simplified equipment, reduces operating power consumption, reduces production cost,
Economic benefit considerable additionally it is possible to reach energy-saving and emission-reduction purpose it is ensured that produce stablize, reduce operator, reduce people
Power cost；This utility model structure is simple, it is easy to accomplish, improvement cost is low.
Brief description
Fig. 1 is structural representation of the present utility model.
Specific embodiment
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 description is 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 the premise of making creative work
The every other embodiment being obtained, broadly falls into the scope of this utility model protection.
Oxygen enrichment system before a kind of blast furnace machine disclosed in this utility model embodiment, by oxygen from low oxygen pipeline to
Blender and air are sufficiently mixed entrance blast furnace blower entrance, are sent the oxygen-enriched air after being sufficiently mixed using blower fan natural air suction
To blast furnace using so that oxygen generating station shuts down for the compressor of this partial oxidation amount of pressurizeing, reducing energy consumption, thus reduce life
Produce cost.
As shown in figure 1, oxygen enrichment system before a kind of blast furnace machine, including oxygen generator 1, blower fan 2 and blast furnace 3, oxygen is sent out
The oxygen that generating apparatus 1 are obtained is branched out some oxygen manifold 5 and is led to different wind by oxygen supervisor 4 output, oxygen supervisor 4
Machine 2 and blast furnace 3, every road oxygen manifold 5 is connected to be sufficiently mixed with air to different blenders 6 and obtains mixing oxygen rich gas, mixes
The outlet of clutch 6 is connected with blower fan 2 suction inlet, and between blender 6 and blower fan 2 suction inlet, the length of connecting pipe is more than wind
3 times of machine 2 intet diameter, ensure that pure oxygen and air can be sufficiently mixed, the air outlet of blower fan 2 connects to blast furnace 3.
Blender 6 adopts new whirlwind, multiple spot water conservancy diversion, comes and goes baffling, so that air and oxygen is sufficiently mixed uniformly it is ensured that entering
Entering installation for blast furnace gas is uniform mixing oxygen rich gas, fundamentally solves the problems, such as that in former flow process, air is uneven with oxygen mix.
It is provided with spark arrester 7, spark arrester selects red copper material, safe, back-fire relief on oxygen supervisor 4 and oxygen manifold 5
Rapidly；Filter 8 is arranged on oxygen manifold 5, using 304 stainless steel shells, filter screen selects 80 mesh 304 stainless steel filtering net,
Filtering accuracy is high, and resistance is little；It is provided with effusion meter 9 accurate count oxygen enriching concentration on oxygen supervisor 4 and oxygen manifold 5；Oxygen
It is provided with deafener 10 on gas supervisor 4, reduce operating noise, safeguard work environmental quality；Connect on the air intake of blender 6
Free gas dehumidifying device 11 removes moisture in air；Oxygen laser is provided with the connecting pipe between blender 6 and blower fan 2 divide
Analyzer 12；Coal gas laser analyzer 13, the reaction speed of laser analyzer are provided with the connecting pipe between blower fan 2 and blast furnace 3
Degree is less than 1 second, improves the safety of oxygen-enriched air blast.
The above is only preferred implementation of the present utility model it is noted that above-mentioned preferred implementation should not regard
It is to restriction of the present utility model, protection domain of the present utility model should be defined by claim limited range.For
For those skilled in the art, without departing from spirit and scope of the present utility model, can also make some
Improvements and modifications, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (9)
1. oxygen enrichment system before a kind of blast furnace machine, including oxygen generator (1), blower fan (2) and blast furnace (3) it is characterised in that institute
The oxygen that the oxygen generator (1) stated is obtained branches out some oxygen by oxygen supervisor (4) output, oxygen supervisor (4)
Arm (5), different blower fans (2) and blast furnace (3) are led in every road oxygen manifold (5), and every road oxygen manifold (5) connects to different
Blender (6) is sufficiently mixed with air and obtains mixing oxygen rich gas, and mixing oxygen rich gas is delivered to the suction inlet of blower fan (2), wind
The air outlet of machine (2) connects to blast furnace (3).
2. before blast furnace machine according to claim 1 oxygen enrichment system it is characterised in that described oxygen supervisor (4) and oxygen
Spark arrester (7) is provided with arm (5).
3. before blast furnace machine according to claim 1 oxygen enrichment system it is characterised in that described oxygen manifold (5) is upper arranges
Filter (8).
4. before blast furnace machine according to claim 1 oxygen enrichment system it is characterised in that described oxygen supervisor (4) and oxygen
Effusion meter (9) is provided with arm (5).
5. before blast furnace machine according to claim 1, oxygen enrichment system goes up setting it is characterised in that described oxygen is responsible for (4)
There is deafener (10).
6. before blast furnace machine according to claim 1 oxygen enrichment system it is characterised in that the air of described blender (6) enters
It is connected with air dehumidifying device (11) on mouthful.
7. before blast furnace machine according to claim 1 oxygen enrichment system it is characterised in that described blender (6) and blower fan (2)
Between suction inlet, the length of connecting pipe is more than 3 times of blower fan (2) intet diameter.
8. before blast furnace machine according to claim 1 oxygen enrichment system it is characterised in that described blender (6) and blower fan (2)
Between connecting pipe on be provided with oxygen laser analyzer (12).
9. before blast furnace machine according to claim 1 oxygen enrichment system it is characterised in that described blower fan (2) and blast furnace (3) it
Between connecting pipe on be provided with coal gas laser analyzer (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620848423.3U CN205893297U (en) | 2016-08-08 | 2016-08-08 | Oxygen boosting system before blast furnace machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620848423.3U CN205893297U (en) | 2016-08-08 | 2016-08-08 | Oxygen boosting system before blast furnace machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205893297U true CN205893297U (en) | 2017-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620848423.3U Active CN205893297U (en) | 2016-08-08 | 2016-08-08 | Oxygen boosting system before blast furnace machine |
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| CN (1) | CN205893297U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2016
- 2016-08-08 CN CN201620848423.3U patent/CN205893297U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |