CN109055653A - A kind of atomization dust-collecting equipment and method of half cylinder of steel - Google Patents
A kind of atomization dust-collecting equipment and method of half cylinder of steel Download PDFInfo
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- CN109055653A CN109055653A CN201810974009.0A CN201810974009A CN109055653A CN 109055653 A CN109055653 A CN 109055653A CN 201810974009 A CN201810974009 A CN 201810974009A CN 109055653 A CN109055653 A CN 109055653A
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- steel
- water
- half cylinder
- dust
- aerosolization
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/38—Removal of waste gases or dust
- C21C5/40—Offtakes or separating apparatus for converter waste gases or dust
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Separation Of Particles Using Liquids (AREA)
Abstract
Present solution provides the atomization dust-collecting equipments and method of a kind of half cylinder of steel to transport half cylinder of steel to dedusting position in half cylinder of steel after to converter iron making, open water-gas atomization device water-aerosolization valve, water-aerosolization spray head after water mist and metallic particles absorption, sufficiently absorbs heat in atomized water spray to half cylinder of steel, metal particulate in half cylinder of steel is due to temperature reduction, not in anti-raw reaction between carbon and oxygen, effectively inhibits the oxidation of half steel, flue dust is inhibited to generate, particulate matter sedimentation is deposited into simultaneously, improves metal recovery rate.
Description
Technical field
The present invention relates to converter smelting technical field, in particular to a kind of atomization dust-collecting equipment of half cylinder of steel and
Method.
Background technique
With the increase of steel grade purity requirements, more and more iron and steel enterprises use duplex smelting when converter molten steel is smelted
The phosphorus or vanadium of first converter smelting removal molten iron are obtained half steel by refining, and half steel is blown to terminal, obtained by second converter
The molten steel of high-cleanness, high.Although the cleanliness control of duplex technique is higher, half steel is remaining in tank after being blended into second converter
Half steel can generate a large amount of flue dust, it is totally unfavorable to environmental Kuznets Curves, increase the solid particulate matter content in environment, reduce
The yield of metal.The above-mentioned environment protection control requirements to converter smelting enterprise more refine, and dedusting is one in tank after converter iron making
It is a important to capture direction.
Therefore, flue dust inhibits in half cylinder of steel after how solving the problems, such as converter iron making, is that those skilled in the art need at present
Technical problems to be solved.
Summary of the invention
In view of this, can effectively inhibit half steel the present invention provides the atomization dust-collecting equipment and method of a kind of half cylinder of steel
Flue dust generates in tank, improves the metal particulate rate of recovery.
To achieve the above object, the invention provides the following technical scheme:
A kind of nebulization dust method of half cylinder of steel, including for the water-sprayed in half cylinder of steel after converter iron making
Gas atomization device is provided with water-aerosolization spray head on the water-gas atomization device and controls the water-aerosolization nozzle switch
Water-aerosolization valve.
Preferably, in above-mentioned atomization dust-collecting equipment, the water-aerosolization spray head is scaling type Laval configuration spray head.
Preferably, in above-mentioned atomization dust-collecting equipment, the water-aerosolization spray head Mach number is greater than 1.7.
Preferably, in above-mentioned atomization dust-collecting equipment, the medium in the water-gas atomization device is compressed air and water.
Preferably, in above-mentioned atomization dust-collecting equipment, the compressed air and the water enter in the water-aerosolization spray head
Before mouthful or nozzle mixes.
Preferably, in above-mentioned atomization dust-collecting equipment, the pressure of the compressed air is 0.5Mpa-1.0Mpa, the pressure
The flow of contracting air is 80m3/h-700m3/h。
Preferably, in above-mentioned atomization dust-collecting equipment, the pressure of the water is 0.4Mpa-0.8Mpa, the flow of the water
For 10m3/h-60m3/h。
This programme also provides a kind of nebulization dust method of half cylinder of steel, and using above-mentioned atomization dust-collecting equipment, the atomization is removed
Dust collecting method includes:
Half cylinder of steel after the converter iron making is transported to dedusting position, the water-gas atomization device on dedusting position is opened,
To carrying out spray dust removing in half cylinder of steel.
It can be seen via above technical scheme that present solution provides the atomization dust-collecting equipment and method of a kind of half cylinder of steel,
Half cylinder of steel is transported to dedusting position after to converter iron making, opens water-gas atomization device water-aerosolization valve by half cylinder of steel,
Water-aerosolization spray head after water mist and metallic particles absorption, sufficiently absorbs heat in atomized water spray to half cylinder of steel, the gold in half cylinder of steel
Metal particles object, not in anti-raw reaction between carbon and oxygen, effectively inhibits the oxidation of half steel, inhibits flue dust to generate, deposit simultaneously since temperature reduces
It is settled into particulate matter, improves metal recovery rate.
Specific embodiment
Core of the invention is to provide the atomization dust-collecting equipment and method of a kind of half cylinder of steel, can effectively inhibit in half cylinder of steel
Flue dust generates, and improves the metal particulate rate of recovery.
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
The invention discloses a kind of atomization dust-collecting equipment of half cylinder of steel, including for in half cylinder of steel after converter iron making into
Water-gas atomization device of row injection, water-aerosolization spray head is provided on water-gas atomization device and control water-aerosolization spray head is opened
The water of pass-aerosolization valve.
The atomization dust-collecting equipment for half cylinder of steel that this programme provides, by water-gas atomization device to half cylinder of steel after converter iron making
It is inside sprayed, atomizing effect is generated using water-gas, the flue dust in half cylinder of steel is promoted to settle, inhibit flue dust generation and recycling metal
Particulate matter.
Preferably, water-aerosolization spray head is scaling type Laval configuration spray head, and scaling type Laval configuration spray head is by two
A conical pipe is constituted, one of them is collapsible tube, another is expansion pipe, has stronger jet thrust.
The size of Mach number can reflect the power of flowing compressibility, when water-aerosolization spray head Mach number is greater than 1.7
When, water-gas compressibility is obvious, has preferable dust removing effects.
Medium in water-gas atomization device is compressed air and water.
Compressed air and water are before water-aerosolization spray head entrance or nozzle mixing.
In order to reach preferably aqueous vapor atomizing effect, the pressure limit of compressed air is 0.5Mpa-1.0Mpa, compressed air
Range of flow be 80m3/h-700m3/h.The pressure limit of water is 0.4Mpa-0.8Mpa, and the range of flow of water is 10m3/h-
60m3/h。
This programme additionally provides a kind of nebulization dust method of half cylinder of steel, fills using the nebulization dust in above-described embodiment
It sets, nebulization dust method includes:
Half cylinder of steel after converter iron making is transported to dedusting position, water-gas atomization device on dedusting position, double of cylinder of steel are opened
Interior carry out spray dust removing.
Illustrate below by specific embodiment:
Embodiment 1
Steel-making is produced using duplex technique, and molten iron obtains half steel, 1350 DEG C of half steel temperature >, C after vanadium extraction furnace vanadium extraction
> 3.0%, half steel are smelted to obtain molten steel through steelmaking converter.Half steel in steelmaking converter after iron making, not only due to half cylinder of steel surface
It is sliding, it will lead to molten steel residue about 10kg-100kg in half cylinder of steel, there is flue dust spilling.Use mobile half cylinder of steel of crane to dedusting position
It sets, opens water-aerosolization valve, is i.e. unlatching compressed air valve and penstock, the steam of atomization is sprayed into half cylinder of steel, reduce
Flue dust temperature inhibits the generation of flue dust, reduces the particle content in air.Specific control situation, in tank remaining half steel amount compared with
When few, compressed air pressure control is controlled in 0.6Mpa, gas flow 803/h-100m3/ h, water pressure are controlled in 0.4Mpa,
Water flow is controlled 103/h-203/h。
Embodiment 2
Steel-making is produced using duplex technique, and molten iron obtains half steel, half steel temperature > 1350 after vanadium extraction furnace vanadium extraction processing
DEG C, 3.0% half steel of C > is smelted to obtain molten steel through steelmaking converter.Half steel in steelmaking converter after iron making, not due to half cylinder of steel surface
Smooth, half cylinder of steel residue molten steel about 100kg-500kg has volume of smoke spilling.Using mobile half cylinder of steel of crane to dedusting position,
Water-aerosolization valve is opened, i.e. unlatching compressed air valve and penstock, the steam of atomization is sprayed into half cylinder of steel, reduces cigarette
Dirt temperature inhibits the generation of flue dust, reduces the particle content in air.Specific to control situation, remaining half steel amount is less in tank
When, compressed air pressure control is controlled in 1.0Mpa, gas flow 5003/h-600m3/h；Water pressure is controlled in 0.7Mpa, water
Flow control is 503/h-60m3/h3/h。
Embodiment 3
Steel-making is produced using duplex technique, carries out branch's dephosphorization technology, and molten iron obtains half steel, half steel temperature after dephosphorization furnace
1350 DEG C of >, C > 3.0% of degree, the half steel of P < 0.05%, half steel is smelted to obtain molten steel through steelmaking converter.Half steel is in steelmaking converter
After iron making, since half cylinder of steel is rough, half cylinder of steel residue molten steel about 100kg-500kg constantly has flue dust spilling.It uses
Mobile half cylinder of steel of crane is opened water-aerosolization valve, i.e. unlatching compressed air valve and penstock, will be atomized to dedusting position
Steam spray into half cylinder of steel, reduce flue dust temperature, inhibit the generation of flue dust, reduce the particle content in air.Specific control
Situation processed, when remaining half steel amount is less in tank, compressed air pressure control is controlled in 0.8Mpa, gas flow 2003/h-
500m3/h；Water pressure control is controlled in 0.6Mpa, water flow 403/h-50m3/h。
After first converter smelting, the half steel that converter comes out is since carbon is high, temperature is higher, when remaining in half cylinder of steel, half
The specific surface area of steel increases, and half steel contains certain residual oxygen, and the carbon, iron burning in half steel generate flue dust, increase cigarette
Gas and solid particulate matter, it is unfavorable to environmental Kuznets Curves.Present invention effect is that after to converter iron making, half cylinder of steel is transported for half steel tank
To dedusting position, open water-gas atomization device water-aerosolization valve, water-aerosolization spray head by atomized water spray to half cylinder of steel,
It after water mist and metallic particles absorption, sufficiently absorbs heat, the metal particulate in half cylinder of steel is not anti-in anti-raw carbon oxygen since temperature reduces
It answers, effectively inhibits the oxidation of half steel, flue dust is inhibited to generate, while depositing into particulate matter sedimentation, improve metal recovery rate.Use the party
Method does not bring secondary pollution, and environmentally friendly implementation result is significant.
The present invention especially has extensive adaptability in the steel-making enterprise using half steel, significantly reduces steel-making life
Produce the solid particulate matter in environment.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (8)
1. a kind of atomization dust-collecting equipment of half cylinder of steel, which is characterized in that including for being carried out in half cylinder of steel after converter iron making
Water-gas atomization device of injection is provided with water-aerosolization spray head on the water-gas atomization device and controls the water-aerosolization
The water of nozzle switch-aerosolization valve.
2. atomization dust-collecting equipment according to claim 1, which is characterized in that the water-aerosolization spray head is scaling type drawing
Wa Er structure spray head.
3. atomization dust-collecting equipment according to claim 2, which is characterized in that the water-aerosolization spray head Mach number is big
In 1.7.
4. atomization dust-collecting equipment according to claim 1, which is characterized in that the medium in the water-gas atomization device is
Compressed air and water.
5. atomization dust-collecting equipment according to claim 4, which is characterized in that the compressed air and the water are described
Before water-aerosolization spray head entrance or nozzle mixes.
6. atomization dust-collecting equipment according to claim 4, which is characterized in that the pressure of the compressed air is 0.5Mpa-
1.0Mpa, the flow of the compressed air are 80m3/h-700m3/h。
7. atomization dust-collecting equipment according to claim 4, which is characterized in that the pressure of the water is 0.4Mpa-0.8Mpa,
The flow of the water is 10m3/h-60m3/h。
8. a kind of nebulization dust method of half cylinder of steel, which is characterized in that apply the described in any item nebulization dusts of claim 1-7
Device, the nebulization dust method include:
Half cylinder of steel after the converter iron making is transported to dedusting position, the water-gas atomization device on dedusting position is opened, to institute
It states and carries out spray dust removing in half cylinder of steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810974009.0A CN109055653A (en) | 2018-08-24 | 2018-08-24 | A kind of atomization dust-collecting equipment and method of half cylinder of steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810974009.0A CN109055653A (en) | 2018-08-24 | 2018-08-24 | A kind of atomization dust-collecting equipment and method of half cylinder of steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109055653A true CN109055653A (en) | 2018-12-21 |
Family
ID=64756738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810974009.0A Pending CN109055653A (en) | 2018-08-24 | 2018-08-24 | A kind of atomization dust-collecting equipment and method of half cylinder of steel |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2189610Y (en) * | 1994-05-10 | 1995-02-15 | 李荣森 | Spray nozzle |
| CN103537150A (en) * | 2012-07-11 | 2014-01-29 | 攀钢集团研究院有限公司 | Environment-friendly dust removal method for molten iron tank |
| CN105063270A (en) * | 2015-08-04 | 2015-11-18 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for reducing semisteel steelmaking smoke dust |
| CN106670007A (en) * | 2015-11-09 | 2017-05-17 | 中国人民解放军军械工程学院 | Self-suction double-phase-flow atomizing nozzle |
| CN106702076A (en) * | 2015-11-17 | 2017-05-24 | 鞍钢股份有限公司 | Method for preventing smoke of converter from polluting environment |
-
2018
- 2018-08-24 CN CN201810974009.0A patent/CN109055653A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2189610Y (en) * | 1994-05-10 | 1995-02-15 | 李荣森 | Spray nozzle |
| CN103537150A (en) * | 2012-07-11 | 2014-01-29 | 攀钢集团研究院有限公司 | Environment-friendly dust removal method for molten iron tank |
| CN105063270A (en) * | 2015-08-04 | 2015-11-18 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for reducing semisteel steelmaking smoke dust |
| CN106670007A (en) * | 2015-11-09 | 2017-05-17 | 中国人民解放军军械工程学院 | Self-suction double-phase-flow atomizing nozzle |
| CN106702076A (en) * | 2015-11-17 | 2017-05-24 | 鞍钢股份有限公司 | Method for preventing smoke of converter from polluting environment |
Non-Patent Citations (1)
| Title |
|---|
| 杨超 等: "基于拉瓦尔效应的超音速喷嘴雾化性能分析与试验", 《农业工程学报》 * |
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Application publication date: 20181221 |
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