CN202913013U - Deoxidant easy to settle - Google Patents
Deoxidant easy to settle Download PDFInfo
- Publication number
- CN202913013U CN202913013U CN 201220549515 CN201220549515U CN202913013U CN 202913013 U CN202913013 U CN 202913013U CN 201220549515 CN201220549515 CN 201220549515 CN 201220549515 U CN201220549515 U CN 201220549515U CN 202913013 U CN202913013 U CN 202913013U
- Authority
- CN
- China
- Prior art keywords
- deoxidant
- steel core
- aluminium
- steel
- oxygen removal
- 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.)
- Expired - Fee Related
Links
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 52
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 51
- 239000010959 steel Substances 0.000 claims abstract description 51
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 50
- 239000004411 aluminium Substances 0.000 claims abstract description 47
- 238000004062 sedimentation Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 230000008016 vaporization Effects 0.000 abstract description 3
- 238000009834 vaporization Methods 0.000 abstract description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 4
- 239000001301 oxygen Substances 0.000 abstract 4
- 229910052760 oxygen Inorganic materials 0.000 abstract 4
- 239000007789 gas Substances 0.000 abstract 1
- 239000013049 sediment Substances 0.000 abstract 1
- 239000011162 core material Substances 0.000 description 30
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 238000009628 steelmaking Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000006392 deoxygenation reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- CYUOWZRAOZFACA-UHFFFAOYSA-N aluminum iron Chemical compound [Al].[Fe] CYUOWZRAOZFACA-UHFFFAOYSA-N 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 210000000038 chest Anatomy 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
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- Treatment Of Steel In Its Molten State (AREA)
Abstract
The utility model provides an easy oxygen removal body that subsides, its oxygen removal body comprises steel core and pure aluminium body, and oxygen removal body's pure aluminium external appearance is similar water droplet form, the steel core be the spheroid, the parcel is internal at pure aluminium, is located the central axis of oxygen removal body's water droplet form pure aluminium body main aspects. Because the utility model discloses the appearance design is similar water droplet form and the steel core is located the main aspects of deoxidant, make its major part down, can effectively reduce the resistance of molten steel to the oxygen-removing body, adopt the proportion of pure aluminum body parcel increase deoxidant on the great steel core of proportion, multiplicable deoxidant gets into the degree of depth of molten steel, and can not come-up and sediment, the burning loss is avoided in gas contact, thus, the vaporization rate of the aluminum body has both been reduced effectively, the loss of the aluminum body has been reduced again, the deoxidation effect has been improved greatly, the yield of aluminium is improved, the deoxidation cost is reduced.
Description
Technical field
The utility model relates to molten-steel deoxidation agent in the steelmaking process, and relating to is a kind of aluminium deoxidation piece that contains steel core, especially a kind of deoxidant body that is easy to sedimentation.
Background technology
Steelworks because aluminium has stronger deoxidizing capacity, normally adopts metallic aluminium to carry out deoxidation in steel making in steelmaking process at present, generally is the fine aluminium goods such as aluminium ingot, aluminium powder, aluminum shot.But in use, although aluminium is a kind of good reductor, because metallic aluminium density is little, be about 1/3 of molten steel, also far below the density of slag, therefore under hot environment, the aluminium matter reductor of an input part is vaporized, and another part floats over above the slag blanket.So not only loss is large, and deoxidation effect is poor, has strengthened steel-making cost.
In order to increase the proportion of reductor, the ascent rate of reductor prolongs the deoxygenation time behind the reduction input molten steel, improves the recovery rate of aluminium, usually the method for employing adding steel core in aluminium block.
(application number: 200420076663.3) disclose a kind of reductor, it is characterized by the deoxidation piece is solid slug to patent " iron core aluminum composite deoxidation block ", and profile is up and down with the right cylinder of arc transition or with the hemisphere of arc transition; Iron core is in the core of deoxidation piece, and the outside is metallic aluminium, and core material can be ferrous material or steel material.The deoxidation piece is difficult for come-up after sinking to molten steel, improves the recovery rate of deoxygenation time and metallic aluminium.But because this reductor profile does not meet principle of hydrodynamics, resistance is larger when descending in molten steel, and descending depth is limited, also needs to improve.
Patent " steel-core-aluminium " (application number: 200720089580.1) disclose a kind of novel deoxidizer for use, this reductor comprises steel core and fine aluminium body, described steel core is wrapped in the fine aluminium body, described steel-core-aluminium is the circular cone stage body, described steel core is right cylinder, and steel core is positioned at the fine aluminium body near on the central axis of Rotary-table small end.The method can suitably increase the proportion of deoxidant body, can improve to a certain extent the recovery rate of aluminium.But because the deoxidant body profile is truncated conical shape, according to principle of hydrodynamics, the resistance of this shaped objects in molten steel is not minimum, therefore also has improved necessity.
Equally, patent " a kind of Novel aluminum-iron combined deoxidized agent block " (application number: 200720129155.0) disclose a kind of novel deoxidizer for use.This reductor comprises steel core and fine aluminium body equally, is that this deoxidizer block profile is gyro shape or warhead form with above-mentioned patent difference.According to principle of hydrodynamics, the resistance of this shaped objects in molten steel is not minimum equally, therefore also has improved necessity.
As mentioned above, also there is the low shortcoming of Al yield in traditional aluminium deoxidizer.
Resistance suffered when as everyone knows, the object of approximate water droplet shape moves in fluid is minimum.Deep sea submarine also uses this reason development just, and the resistance that still can resist super large at the deep-sea keeps advancing at utmost speed.In fact, as long as tail is opposite all the time with direct of travel, just can as submarine, high speed advance.Just, because scientific and technological level limits, this shape is difficult to apply to practice, as: it is minimum that the bullet that moves in air is done approximate water-drop-shaped atmospheric drag, but in order to improve acceleration in the thorax, the rear end is made spill usually, simultaneously in order to improve the penetration power Front-end Design coning; No matter submarine also is that front end has imitated, and is restricted more from economy or on technical difficulty as for rocket, all is difficult to take approximate water-drop-shaped.
The utility model content
The purpose of this utility model provides a kind of deoxidant body that is easy to sedimentation, it is outer for being similar to drops, the steel core of deoxidant body inside can increase deoxidant body density, when reducing deoxidant body and descending molten steel to its resistance, thereby improve the speed that deoxidant body sinks to molten steel, increase its descending depth, it is inner to enter darker molten steel, reduces the vaporization rate of aluminium, the advantage that Al yield is high, improve deoxidation effect, reduce production costs.
The technical solution of the utility model is: deoxidant body is comprised of steel core and fine aluminium body, and the fine aluminium body profile of deoxidant body is approximate drops, and described steel core is spheroid, is wrapped in the fine aluminium body, is positioned on the central axis of the large end of drops fine aluminium body of deoxidant body.
The large end of approximate drop-shaped deoxidant body described in the utility model is hemisphere, and afterbody is cone, and hemisphere radius and cone aspect ratio are 1:2 ~ 1:4;
The steel core of deoxidant body described in the utility model is apart from the large end outer rim of deoxidant body 1 ~ 10mm, and the steel core diameter is 1:3 ~ 5:7 with the large end hemisphere of deoxidant body diameter ratio.
The material of the steel core of the utility model deoxidant body is technically pure iron or straight carbon steel, and the purity of aluminium is greater than 99%.
Because deoxidant body of the present utility model is according to principle of hydrodynamics, profile is designed to the large end that approximate drops and steel core are positioned at reductor, make it greatly upside down, can effectively reduce molten steel to the resistance of deoxidant body, adopt the fine aluminium body to be wrapped in the proportion that increases reductor on the larger steel core of proportion, can increase the degree of depth that reductor enters molten steel, and can come-up do not contact with slag, gas and avoid scaling loss, like this, both effectively reduce the vaporization rate of aluminium body, reduced again the loss of aluminium body, greatly improved deoxidation effect, improve the recovery rate of aluminium, reduced the deoxidation cost.
Description of drawings
Fig. 1 is front view of the present utility model
Fig. 2 is the longitudinal section view of Fig. 1
Fig. 3 is Figure 1A-A cross section view
1-steel core, 2-fine aluminium body in the accompanying drawing
Embodiment:
Below in conjunction with accompanying drawing the utility model is elaborated.
Embodiment 1:
As shown in Figure 1, 2: deoxidant body is comprised of steel core 1 and fine aluminium body 2, steel core is in fine aluminium body 2, fine aluminium body 2 profiles of deoxidant body are approximate drops, steel core is spherical, and as shown in Figure 1, 2, 3, steel core is on the central axis of deoxidant body, steel core is apart from the large end outer rim of deoxidant body 2mm, as shown in Figure 1, 2, the steel core diameter is 1:3 with the large end hemisphere of deoxidant body diameter ratio, and hemisphere radius and cone aspect ratio are 1:3.
Embodiment 2:
As shown in drawings: comprise steel core 1 and fine aluminium body 2, steel core is in the fine aluminium body, the deoxidant body profile is approximate drops, steel core is spherical, steel core is on the central axis of deoxidant body, steel core is apart from the large end outer rim of deoxidant body 5mm, and the steel core diameter is 1:2 with the large end hemisphere of deoxidant body diameter ratio, and hemisphere radius and cone aspect ratio are 1:4.
Claims (3)
1. a deoxidant body that is easy to sedimentation is characterized in that, deoxidant body is comprised of steel core and fine aluminium body, the fine aluminium body profile of deoxidant body is approximate drops, described steel core is spheroid, is wrapped in the fine aluminium body, is positioned on the central axis of the large end of drops fine aluminium body of deoxidant body.
2. a kind of deoxidant body that is easy to sedimentation according to claim 1 is characterized in that, the large end of described drops fine aluminium body is hemisphere, and afterbody is cone, and hemisphere radius and cone aspect ratio are 1:2 ~ 1:4.
3. a kind of deoxidant body that is easy to sedimentation according to claim 1 is characterized in that, steel core is apart from the large end outer rim of deoxidant body 1 ~ 10mm, and the steel core diameter is 1:3 ~ 5:7 with the large end hemisphere of deoxidant body diameter ratio.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220549515 CN202913013U (en) | 2012-10-23 | 2012-10-23 | Deoxidant easy to settle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220549515 CN202913013U (en) | 2012-10-23 | 2012-10-23 | Deoxidant easy to settle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202913013U true CN202913013U (en) | 2013-05-01 |
Family
ID=48161341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220549515 Expired - Fee Related CN202913013U (en) | 2012-10-23 | 2012-10-23 | Deoxidant easy to settle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202913013U (en) |
-
2012
- 2012-10-23 CN CN 201220549515 patent/CN202913013U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130501 Termination date: 20181023 |