CN204311079U - A kind of electromagnetic braking slag free tapping equipment for converter or electric furnace - Google Patents
A kind of electromagnetic braking slag free tapping equipment for converter or electric furnace Download PDFInfo
- Publication number
- CN204311079U CN204311079U CN201420500212.1U CN201420500212U CN204311079U CN 204311079 U CN204311079 U CN 204311079U CN 201420500212 U CN201420500212 U CN 201420500212U CN 204311079 U CN204311079 U CN 204311079U
- Authority
- CN
- China
- Prior art keywords
- converter
- electric furnace
- molten steel
- magnetic field
- slag
- 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 - Lifetime
Links
- 239000002893 slag Substances 0.000 title claims abstract description 21
- 238000010079 rubber tapping Methods 0.000 title claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 52
- 239000010959 steel Substances 0.000 claims abstract description 52
- 239000000463 material Substances 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 230000003068 static effect Effects 0.000 claims abstract description 5
- 230000000694 effects Effects 0.000 abstract description 5
- 230000003647 oxidation Effects 0.000 abstract description 3
- 238000007254 oxidation reaction Methods 0.000 abstract description 3
- 239000010802 sludge Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000001934 delay Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 229910001338 liquidmetal Inorganic materials 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000009865 steel metallurgy Methods 0.000 description 1
Classifications
-
- 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
- Y02P10/20—Recycling
Landscapes
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
The utility model relates to a kind of electromagnetic braking slag free tapping equipment for converter or electric furnace.Comprise converter or the resistance to material of electric furnace furnace shell, tap hole, solenoid and body of heater, be provided with tap hole bottom converter or electric furnace furnace shell, the periphery of tap hole is wound with some groups of solenoids, is arranged with the resistance to material of body of heater, shields outside described some groups of solenoids; Being molten steel layer in converter or electric furnace furnace shell, is slag blanket above molten steel layer, and described some groups of solenoids connect energized equipment, and described solenoid energising produces static magnetic field or DC pulse magnetic field, and its field direction is perpendicular to the liquid steel level of molten steel layer.The utility model utilizes the solenoid being embedded in converter or tap holes of electric furnace to produce magnetic field, magnetic field produces braking effect to the flowing of molten steel, suppress the flowing of molten steel in converter or electric furnace, avoid or postpone the generation of whirlpool, thus by the oxidation sludge gear in converter or electric furnace in stove, accomplish to go out less or do not slag tap, raising output of steel, lifting steel quality, reduction production cost are had great significance.
Description
Technical field
The utility model belongs to field of steel metallurgy, relates to a kind of electromagnetic braking slag free tapping equipment for converter or electric furnace.
Background technology
When in converter or electric furnace, molten steel tapping steel is to latter stage, molten steel speed of rotation before formation whirlpool is accelerated, and speed of rotation is faster, and more early, the slag floating over molten steel surface is carried secretly into ladle more in the formation of whirlpool.The meaning stoping slag to enter ladle when converter or electric furnace steel tapping is: can reduce rephosphorization of molten steel, improves yield of alloy; Reduce steel inclusion, improve molten steel cleanliness; Ladle dry slag can be reduced, improve ladle bag age, reduce refractory consumption; Also can be the condition that liquid steel refining provides good.
The common method of pushing off the slag when converter current or electric furnace steel tapping: pushing off the slag ball; Floating plug method; Tap hole slide plate method; These methods or be pushing off the slag, also block molten steel simultaneously, affect tap; Control molten steel producing steel velocity, extend the tapping time, then affect output of steel.These methods fundamentally can not eliminate steel stream whirlpool.
Benefit when how to make converter or electric furnace steel tapping is best, namely realizes that the tapping time is short, recovery rate of iron is high, the few or nothing to the oxidation sludge in ladle, and this is the purpose of this utility model.
Summary of the invention
The purpose of this utility model is to propose a kind of electromagnetic braking slag free tapping equipment for converter or electric furnace.
The electromagnetic braking slag free tapping equipment for converter or electric furnace that the utility model proposes, comprise converter or the resistance to material 4 of electric furnace furnace shell 1, tap hole 2, solenoid 3 and body of heater, wherein: bottom converter or electric furnace furnace shell 1, be provided with tap hole 2, the periphery of tap hole 2 is wound with some groups of solenoids 3, be arranged with the resistance to material 4 of body of heater outside described some groups of solenoids 3, shield; Be molten steel layer 5 in converter or electric furnace furnace shell 1, be slag blanket 6 above molten steel layer 5, described some groups of solenoids 3 connect energized equipment, and described solenoid 3 is energized and produces static magnetic field or DC pulse magnetic field, and its field direction is perpendicular to the liquid steel level of molten steel layer 5.
In the utility model, described solenoid 3 adopts high temperature resistant coil.
Principle of work of the present utility model is: the generation suppressing whirlpool, or the generation postponing whirlpool.Known principle is known, static-magnetic field energy perpendicular to liquid metal flows direction effectively suppresses the flowing of liquid metal, and in molten steel, namely set up a static magnetic field perpendicular to molten steel sense of rotation, magneticstrength is when enough, the rotational flow of molten steel can be suppressed, velocity of flow is faster, and the effect in magnetic field is stronger, thus delays the time of whirlpool appearance latter stage in tapping, even do not form whirlpool, do not affect the speed that molten steel flows out, reaching the short period of time has more steel, the object of slagging tap less simultaneously.
The beneficial effects of the utility model are: converter (electric furnace), when tapping latter stage, can form whirlpool in stove, and the oxidizing slag in stove flows into ladle, and then affects postorder refining effect, pollutes, affect steel quality to molten steel.Control whirlpool by the method controlling flow to be formed, the tapping time can be increased, or stay steel to operate more, all can reduce output of steel.The utility model patented technology, when not affecting producing steel velocity, delays whirlpool and is formed, can have more steel, reduces oxidation sludge and enters ladle, for improving steel quality, improves output of steel, reduces alloy and consumes important in inhibiting.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Number in the figure: 1 is converter or electric furnace furnace shell, and 2 is tap hole, and 3 is solenoid, and 4 is the resistance to material of body of heater, and 5 is molten steel layer, and 6 is slag blanket, and 7 is field direction.
Embodiment
The utility model is further illustrated by reference to the accompanying drawings below by embodiment.
Embodiment 1: as shown in Figure 1; this equipment is made up of converter or electric furnace furnace shell 1, tap hole 2, insulated wire Fig. 3, the resistance to material 4 of body of heater, molten steel layer 5 and slag blanket 6; some groups of solenoids 3 around being embedded in outside tap hole 2, and are subject to the protection of the resistance to material 4 of body of heater in converter or electric furnace furnace shell 1 bottom electrical magnetic coil 3.When solenoid 3 passes to enough direct currents or DC pulse current, produce the field direction 7 perpendicular to molten steel layer 5 liquid steel level.Described solenoid 3 adopts high temperature resistant coil, and tap hole 2 one buries prefabricated high temperature resistant coil underground near enclosing, and the resistance to material 4 of high temperature resistant coil body of heater protects.When starting to tap, solenoid 3 need not be energized, and when latter stage, solenoid 3 starts the DC pulse current passing to strong dc or certain frequency, and produce static magnetic field or DC pulse magnetic field, field direction 7 is perpendicular to liquid steel level.When molten steel rotates, due to the electromagnetic braking effect in magnetic field, rotate and at once produce resistance, but molten steel is unaffected from the take-off rate of tap hole.Formed even if rotate, along with the quickening of speed of rotation, the braking effect in magnetic field also increases thereupon.Realize the slag free tapping of short period of time thus.
Claims (1)
1. the electromagnetic braking slag free tapping equipment for converter or electric furnace, comprise converter or electric furnace furnace shell (1), tap hole (2), solenoid (3) and the resistance to material of body of heater (4), it is characterized in that: converter or electric furnace furnace shell (1) bottom are provided with tap hole (2), the periphery of tap hole (2) is wound with some groups of solenoids (3), be arranged with the resistance to material of body of heater (4) outside described some groups of solenoids (3), shield; Be molten steel layer (5) in converter or electric furnace furnace shell (1), molten steel layer (5) top is slag blanket (6), described some groups of solenoids (3) connect energized equipment, described solenoid (3) energising produces static magnetic field or DC pulse magnetic field, and its field direction is perpendicular to the liquid steel level of molten steel layer (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420500212.1U CN204311079U (en) | 2014-09-02 | 2014-09-02 | A kind of electromagnetic braking slag free tapping equipment for converter or electric furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420500212.1U CN204311079U (en) | 2014-09-02 | 2014-09-02 | A kind of electromagnetic braking slag free tapping equipment for converter or electric furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204311079U true CN204311079U (en) | 2015-05-06 |
Family
ID=53133404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420500212.1U Expired - Lifetime CN204311079U (en) | 2014-09-02 | 2014-09-02 | A kind of electromagnetic braking slag free tapping equipment for converter or electric furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204311079U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106282470A (en) * | 2015-06-09 | 2017-01-04 | 宝山钢铁股份有限公司 | Poly-slag slag skimming method and device |
-
2014
- 2014-09-02 CN CN201420500212.1U patent/CN204311079U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106282470A (en) * | 2015-06-09 | 2017-01-04 | 宝山钢铁股份有限公司 | Poly-slag slag skimming method and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Chen Ji Inventor after: Xu Bing Inventor after: Yang Fan Inventor after: Cheng Huang Inventor before: Chen Ji Inventor before: Xu Bing Inventor before: Zhang Fan Inventor before: Cheng Huang |
|
| CB03 | Change of inventor or designer information | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150506 |
|
| CX01 | Expiry of patent term |