CN206337288U - The three layers of polymer fluidic oxygen guns for converter high effective oxygen blowing - Google Patents
The three layers of polymer fluidic oxygen guns for converter high effective oxygen blowing Download PDFInfo
- Publication number
- CN206337288U CN206337288U CN201621444816.4U CN201621444816U CN206337288U CN 206337288 U CN206337288 U CN 206337288U CN 201621444816 U CN201621444816 U CN 201621444816U CN 206337288 U CN206337288 U CN 206337288U
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- CN
- China
- Prior art keywords
- oxygen
- fluidic
- fluidic channel
- layer
- spray
- 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.)
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Links
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 80
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 78
- 239000001301 oxygen Substances 0.000 title claims abstract description 78
- 238000007664 blowing Methods 0.000 title claims abstract description 17
- 229920000642 polymer Polymers 0.000 title claims abstract description 12
- 239000004593 Epoxy Substances 0.000 claims abstract description 15
- 239000007789 gas Substances 0.000 claims abstract description 11
- 239000000498 cooling water Substances 0.000 claims abstract description 7
- 238000007598 dipping method Methods 0.000 claims description 9
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims 1
- 238000003756 stirring Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 238000002156 mixing Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000002844 melting Methods 0.000 abstract description 3
- 230000008018 melting Effects 0.000 abstract description 3
- 230000035515 penetration Effects 0.000 abstract description 2
- 239000002184 metal Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000002893 slag Substances 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 238000013019 agitation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
The utility model is related to a kind of three layers of polymer fluidic oxygen guns for converter high effective oxygen blowing, it is characterized in that including center sprue fluidic channel, second layer pair oxygen jet passage, the cooling water inlet pipe and cooling water outlet pipe of third layer epoxy gas fluidic channel and outer layer, described center sprue fluidic channel top, secondary oxygen jet channel upper and epoxy fluidic channel top are connected with oxygen hose, spray-hole is provided with described center sprue fluidic channel bottom, multiple spray-holes are provided with the bottom of the secondary oxygen jet passage of the described second layer, multiple spray-holes are also provided with the bottom of described third layer epoxy gas fluidic channel.The utility model has the advantages that：The three layers of polymer fluidic oxygen gun increases penetration depth of the oxygen jet to molten bath, melting bath stirring is enhanced, expulsion events are substantially reduced so that the mixing effect of oxygen stream stock can be beautiful compared with bottom blowing stirring, both investment in equipment and maintenance expense can be saved, mixing effect is can guarantee that again.
Description
Technical field
The utility model belongs to converter steelmaking process technical field, and in particular to a kind of three layers for converter high effective oxygen blowing
It polymerize fluidic oxygen gun.
Background technology
Conventional oxygen-blown is to use porous supersonic speed oxygen rifle in converter, because its pipette tips is nearer from molten steel face, so aborning
Frequently encounter slagging scorification and viscous rifle shortens the problems such as oxygen rifle is blown the life-span, meanwhile, when spray outlet gasflow mach number is more than 2, with spray
Head stagnation pressure is improved, and flow velocity increase is slower, i.e. the increase of shower nozzle flow velocity is restricted, then only part is golden for the stirring power of oxygen
Category absorbs, therefore, is achieved be stirred using the top and bottom complex blowing smelting process of bottom blowing inert gas both at home and abroad, be difficult splash, slag
Middle iron oxide content is low, and metal receives rate height, and more low carbon content steel grade and other effects can be smelted compared with top blast, but top bottom is answered
Blow that smelting process bottom rifle is difficult in maintenance, the life-span is relatively low, can not be synchronous with the converter lining life improved by slag splashing technique.
Polymerization fluidic oxygen gun overcomes this defect, can cancel bottom rifle, reach the effect of top and bottom complex blowing.In normal operating
Rifle position when, slag making materials, steel technology also decrease；Oxygen jet is to the agitation energy in molten bath mainly by metal bath
Absorbed.
The content of the invention
The utility model polymerization fluidic system can be transformed in the original oxygen rifle system of converter.It can retain original
The primary jet of oxygen design of shower nozzle, but to increase the combustion flame protection of the ring-type oxygen around per share jet.
What the technical solution of the utility model was realized in.
A kind of three layers of polymer fluidic oxygen guns for converter high effective oxygen blowing described in the utility model, including center sprue
Fluidic channel, cooling water inlet pipe and the cooling of second layer pair oxygen jet passage, third layer epoxy fluidic channel and outer layer
Water outlet pipe, described center sprue fluidic channel top, secondary oxygen jet channel upper and epoxy fluidic channel top
It is connected with oxygen hose, spray-hole is provided with described center sprue fluidic channel bottom, in the secondary oxygen of the described second layer
The bottom of gas fluidic channel is provided with multiple spray-holes, and multiple injections are also provided with the bottom of described third layer epoxy fluidic channel
Hole.
Preferably, the spray-hole that described center sprue fluidic channel bottom is provided with is 4-6 outward-dipping spray-holes.
Preferably, multiple spray-holes of the secondary oxygen jet passage of the described second layer are 8-12 outward-dipping spray-holes.
Preferably, multiple spray-holes of described third layer epoxy fluidic channel are 16-18.
Preferably, the angle of described outward-dipping spray-hole is 8-12 °.
The utility model has the advantages that：
High-speed jet oxygen is accelerated to supersonic speed by the three layers of polymer fluidic oxygen gun, and high-speed jet is in a complete encirclement
It is used for converter smelting under the protection of its gas burning hood, the gas burning hood is high-temperature low-density hot gas, main oxygen jet is by gas burning hood
Surround, the supersonic velocity length of primary oxygen jets is larger, and its impulsive force is more much bigger than conventional jet, increases oxygen jet pair
The penetration depth in molten bath, enhances melting bath stirring, substantially reduces expulsion events, to polymerize fluidic oxygen gun technology in oxygen coverter
Conventional oxygen spray gun is transformed so that the mixing effect of oxygen stream stock can be beautiful compared with bottom blowing stirring, so as to cancel in converter
Bottom mixing plant, can both save investment in equipment and maintenance expense, remove the trouble for changing furnace bottom from, mixing effect is can guarantee that again.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the utility model Fig. 1 A direction views.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
As depicted in figs. 1 and 2, a kind of three layers of polymer fluidic oxygen guns for converter high effective oxygen blowing, including center sprue
Fluidic channel 1, the and of cooling water inlet pipe 4 of second layer pair oxygen jet passage 2, third layer epoxy fluidic channel 3 and outer layer
Cooling water outlet pipe 5, the described top of center sprue fluidic channel 1, the secondary top of oxygen jet passage 2 and epoxy jet leads to
The top of road 3 is connected with oxygen hose, and spray-hole 6 is provided with the described bottom of center sprue fluidic channel 1, described the
The bottom of two layers of secondary oxygen jet passage 2 is provided with multiple spray-holes 7, in the bottom of described third layer epoxy fluidic channel 3 also
Provided with multiple spray-holes, do not shown in figure.
Preferably, the spray-hole that the described bottom of center sprue fluidic channel 1 is provided with is 4-6 outward-dipping injections
Hole, and the angle of described outward-dipping spray-hole is 8-12 °.Because the main oxygen jet in center is surrounded by gas burning hood, make main oxygen
The supersonic velocity length of jet is larger, sprays and is injected through slag layer in molten metal, to stirring intensity and the bottom blowing phase in molten bath
Closely；
Multiple spray-holes of second layer pair oxygen jet passage are 8-12 outward-dipping spray-holes.The multiply oxygen of injection
Secondary jet and oxygen center power stream are dividually advanced certain distance, and then the secondary jet of the oxygen is brought into oxygen center power stream
In the upstream oxygen power stream for injecting molten metal.The secondary oxygen jet angle of divergence regard primary oxygen jets with pair oxygen jet it is absolute
Depending on speed and relative velocity.In general, secondary oxygen jet can not be brought into close to the top end of lance head in itself, can not
Do not bring into also in the power stream of center and just disappear, so as to can not be penetrated into molten metal.The design of the secondary oxygen jet, can expand
Big oxygen jet can promote slag-metal reaction, reduce splash, improve recovery rate of iron to the ability of melting bath stirring.
Multiple spray-holes of third layer epoxy fluidic channel are 16-18.Due to converter in refining process headroom
The oxidizable species CO produced containing reaction between carbon and oxygen in a large amount of stoves, the oxygen jet of ring jet oxygen channel injection burns with CO to be produced
Raw high temperature low density gas can wrap up center oxygen, make relative velocity between the high-speed jet at center and hot gas jet and
Momentum-exchange is farthest reduced, and the transport of kinetic energy such as is similar to.The design of the third layer epoxy jet will play with stove
The high-temperature low-density for the CO mixed combustions generation flame cover that reaction between carbon and oxygen is produced is acted on stream.
The utility model is simple in construction, with bigger market application foreground.
Claims (5)
1. a kind of three layers of polymer fluidic oxygen guns for converter high effective oxygen blowing, it is characterised in that logical including center sprue jet
Road, cooling water inlet pipe and the cooling water water outlet of second layer pair oxygen jet passage, third layer epoxy fluidic channel and outer layer
Pipe, described center sprue fluidic channel top, secondary oxygen jet channel upper and epoxy fluidic channel top are and oxygen
Tracheae is connected, and spray-hole is provided with described center sprue fluidic channel bottom, in the secondary oxygen jet of the described second layer
The bottom of passage is provided with multiple spray-holes, and multiple spray-holes are also provided with the bottom of described third layer epoxy gas fluidic channel.
2. the three layers of polymer fluidic oxygen guns according to claim 1 for converter high effective oxygen blowing, it is characterised in that described
The spray-hole that center sprue fluidic channel bottom is provided with is 4-6 outward-dipping spray-holes.
3. the three layers of polymer fluidic oxygen guns according to claim 1 for converter high effective oxygen blowing, it is characterised in that described
Multiple spray-holes of second layer pair oxygen jet passage are 8-12 outward-dipping spray-holes.
4. the three layers of polymer fluidic oxygen guns according to claim 1 for converter high effective oxygen blowing, it is characterised in that described
Multiple spray-holes of third layer ring jet oxygen passage are 16-18.
5. the three layers of polymer fluidic oxygen guns according to claim 2 for converter high effective oxygen blowing, it is characterised in that described
The angle of outward-dipping spray-hole is 8-12 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621444816.4U CN206337288U (en) | 2016-12-27 | 2016-12-27 | The three layers of polymer fluidic oxygen guns for converter high effective oxygen blowing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621444816.4U CN206337288U (en) | 2016-12-27 | 2016-12-27 | The three layers of polymer fluidic oxygen guns for converter high effective oxygen blowing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206337288U true CN206337288U (en) | 2017-07-18 |
Family
ID=59302725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621444816.4U Expired - Fee Related CN206337288U (en) | 2016-12-27 | 2016-12-27 | The three layers of polymer fluidic oxygen guns for converter high effective oxygen blowing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206337288U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108642234A (en) * | 2018-07-16 | 2018-10-12 | 辽宁科技大学 | A kind of single channel double structure oxygen lance nozzle and converting process |
| CN111074038A (en) * | 2019-12-27 | 2020-04-28 | 安徽工业大学 | Converter slag splashing protection targeted slag splashing gun position control method |
| CN114410883A (en) * | 2021-12-30 | 2022-04-29 | 钢铁研究总院 | Oxygen lance for cooperatively injecting oxygen, powder and inert gas and injection method |
-
2016
- 2016-12-27 CN CN201621444816.4U patent/CN206337288U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108642234A (en) * | 2018-07-16 | 2018-10-12 | 辽宁科技大学 | A kind of single channel double structure oxygen lance nozzle and converting process |
| CN111074038A (en) * | 2019-12-27 | 2020-04-28 | 安徽工业大学 | Converter slag splashing protection targeted slag splashing gun position control method |
| CN111074038B (en) * | 2019-12-27 | 2022-03-08 | 安徽工业大学 | Converter slag splashing protection targeted slag splashing gun position control method |
| CN114410883A (en) * | 2021-12-30 | 2022-04-29 | 钢铁研究总院 | Oxygen lance for cooperatively injecting oxygen, powder and inert gas and injection method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170718 |