CN204022872U - For the stirring rake of desulfurizing iron - Google Patents
For the stirring rake of desulfurizing iron Download PDFInfo
- Publication number
- CN204022872U CN204022872U CN201420531856.7U CN201420531856U CN204022872U CN 204022872 U CN204022872 U CN 204022872U CN 201420531856 U CN201420531856 U CN 201420531856U CN 204022872 U CN204022872 U CN 204022872U
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- China
- Prior art keywords
- stir shaft
- stirring rake
- flame retardant
- retardant coating
- desulfurizing iron
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- 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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- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The utility model discloses a kind of stirring rake for desulfurizing iron, it comprise there is breather line stir shaft, be connected to multiple blades bottom stir shaft, all flame retardant coating is coated with outside stir shaft and blade, the flame retardant coating be coated on outside stir shaft has reinforcement, and reinforcement from top to bottom thickeies gradually.Owing to adopting technique scheme, the utility model is used for the stirring rake of desulfurizing iron, by the stir shaft of stirring rake being inserted the thickening of flame retardant coating in the part in molten iron, what make stir shaft can resist molten iron and slag washes away erosion, and work-ing life improves greatly.
Description
Technical field
the utility model relates to a kind of stirring rake for desulfurizing iron.
Background technology
in steelmaking process, molten iron, before entering converter, electrosmelting steel, carries out the outer pretreatment desulfurizing of stove, can improve the kind of steel product quality and expansion product made from steel, accelerates iron and steel enterprise's rhythm of production, enhances productivity, reduce steel-making cost etc.Up to now, desulfurizing iron pre-treatment mainly adopts KR stirring desulphurization mode.In KR stirring desulphurization process, under stirring rake being inserted molten iron level, certain depth rotates, and strong agitation molten iron makes molten iron and reactive desulfurizing agent, reaches sweetening effectiveness.
stirring rake is in stirring desulphurization process, due to the erosive wear of molten iron, the outer field refractory materials badly broken of the blade of stirring rake can be made, occur that structure of refractory peels off, crackle groove, eyelet melting loss, local pit come off, the bad phenomenon such as seamed edge wearing and tearing and dry slag erosion.In prior art, the refractory materials thin and thick of the stir shaft outer cladding of stirring rake is even, and in use, stir shaft has part also will be inserted in the middle of molten iron, the refractory materials of this part also there will be more serious breakage, the stirring capacity of stirring rake to molten iron is progressively weakened, greatly reduces desulfuration efficiency, shorten the work-ing life of stirring rake.
Summary of the invention
in order to solve the problem, the purpose of this utility model is to provide a kind of stirring rake for desulfurizing iron.
in order to reach above object, the technical solution adopted in the utility model is: for the stirring rake of desulfurizing iron, it comprise there is breather line stir shaft, be connected to multiple blades bottom stir shaft, all flame retardant coating is coated with outside stir shaft and blade, the flame retardant coating be coated on outside stir shaft has reinforcement, and reinforcement from top to bottom thickeies gradually.
further, the bottom of reinforcement is connected with the flame retardant coating be coated on blade.
further, multiple blade is uniformly distributed along stir shaft circumference.
further, the outer wall of stir shaft and blade is all fixedly installed multiple anchoring piece, and anchoring piece is covered by flame retardant coating.
owing to adopting technique scheme, the utility model is used for the stirring rake of desulfurizing iron, by the stir shaft of stirring rake being inserted the thickening of flame retardant coating in the part in molten iron, what make stir shaft can resist molten iron and slag washes away erosion, and work-ing life improves greatly.
Accompanying drawing explanation
accompanying drawing 1 is used for the structural representation of the stirring rake of desulfurizing iron for the utility model;
accompanying drawing 2 is used for the local section structural representation of the stirring rake of desulfurizing iron for the utility model.
number in the figure is:
1, stir shaft; 2, blade; 3, flame retardant coating; 4, reinforcement.
Embodiment
below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, can be easier to make advantages and features of the invention be readily appreciated by one skilled in the art, thus more explicit defining is made to protection domain of the present utility model.
with reference to accompanying drawing 1 and accompanying drawing 2, the utility model provides a kind of stirring rake for desulfurizing iron, and it comprises stir shaft 1, be connected to multiple blades 2 bottom stir shaft 1, is all coated with flame retardant coating 3 outside stir shaft 1 and blade 2.
the flame retardant coating 3 be coated on outside stir shaft 1 has reinforcement 4, and reinforcement 4 from top to bottom thickeies gradually.
the bottom of reinforcement 4 is connected with the flame retardant coating 3 be coated on blade 2.
multiple blade 2 is uniformly distributed along stir shaft 1 circumference.Blade 2 in the present embodiment has four.
the outer wall of stir shaft 1 and blade 2 is all fixedly installed multiple anchoring piece, and anchoring piece is covered by flame retardant coating 3.Anchoring piece can be volution, V-arrangement, Y shape etc.Anchoring piece in the present embodiment is Y shape.Anchoring piece make flame retardant coating 3 and the connection between stir shaft 1 and blade 2 more firm.
when using this to be used for the stirring rake of desulfurizing iron, time in steel mill to molten iron stirring desulphurization, stirring rake of the present utility model and desulphurization stirring device support the use, stirring rake is inserted fast rotational in molten iron, strong agitation molten iron, makes molten iron and reactive desulfurizing agent, reaches sweetening effectiveness.
above-described embodiment, only for technical conceive of the present utility model and feature are described, its object is to person skilled in the art can be understood content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences done according to the utility model spirit change or modify, and all should be encompassed within protection domain of the present utility model.
Claims (4)
1. the stirring rake for desulfurizing iron, it comprises stir shaft (1), is connected to multiple blades (2) of described stir shaft (1) bottom, described stir shaft (1) and blade (2) outside are all coated with flame retardant coating (3), it is characterized in that: the flame retardant coating (3) being coated on described stir shaft (1) outside has reinforcement (4), and described reinforcement (4) from top to bottom thickeies gradually.
2. the stirring rake for desulfurizing iron according to claim 1, is characterized in that: the bottom of described reinforcement (4) is connected with the flame retardant coating (3) be coated on blade (2).
3. the stirring rake for desulfurizing iron according to claim 1, is characterized in that: described multiple blades (2) are uniformly distributed along stir shaft (1) circumference.
4. the stirring rake for desulfurizing iron according to claim 1, is characterized in that: described stir shaft (1) and the outer wall of blade (2) are all fixedly installed multiple anchoring piece, and described anchoring piece is covered by flame retardant coating (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420531856.7U CN204022872U (en) | 2014-09-16 | 2014-09-16 | For the stirring rake of desulfurizing iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420531856.7U CN204022872U (en) | 2014-09-16 | 2014-09-16 | For the stirring rake of desulfurizing iron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204022872U true CN204022872U (en) | 2014-12-17 |
Family
ID=52062764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420531856.7U Active CN204022872U (en) | 2014-09-16 | 2014-09-16 | For the stirring rake of desulfurizing iron |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204022872U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111263821A (en) * | 2017-10-23 | 2020-06-09 | 日本制铁株式会社 | Electric furnace and method for melting and reducing iron oxide-containing raw material |
-
2014
- 2014-09-16 CN CN201420531856.7U patent/CN204022872U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111263821A (en) * | 2017-10-23 | 2020-06-09 | 日本制铁株式会社 | Electric furnace and method for melting and reducing iron oxide-containing raw material |
| CN111263821B (en) * | 2017-10-23 | 2022-01-11 | 日本制铁株式会社 | Electric furnace and method for melting and reducing iron oxide-containing raw material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |