CN203803444U - Stirring paddle for cooling molten iron - Google Patents
Stirring paddle for cooling molten iron Download PDFInfo
- Publication number
- CN203803444U CN203803444U CN201420137786.7U CN201420137786U CN203803444U CN 203803444 U CN203803444 U CN 203803444U CN 201420137786 U CN201420137786 U CN 201420137786U CN 203803444 U CN203803444 U CN 203803444U
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- CN
- China
- Prior art keywords
- paddle
- molten iron
- stirring
- utility
- model
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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.)
- Expired - Fee Related
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Abstract
The utility model relates to the field of steel making equipment, in particular to a stirring paddle for cooling molten iron. The stirring paddle for cooling the molten iron, disclosed by the utility model, comprises a paddle shaft (1) and a plurality of paddle blades (2); the paddle shaft (1) is divided into an upper paddle shaft section (11) and a lower paddle shaft section (12) at a slag line part (13); the diameter of the lower paddle shaft section (12) is 10 cm greater than that of the upper paddle shaft section (11); the edge of each paddle blade (2) is trapezoidal in the vertical direction. By the design of the stirring paddle disclosed by the utility model, the mechanical damage of unmelted iron blocks to the paddle shaft and the paddle blades when the temperature is reduced by adding the iron blocks can be effectively reduced, and the service life of the stirring paddles under the process condition is prolonged. The design of the stirring paddle smoothly meets the requirement of stabilizing the service life when the molten iron is cooled by stirring the iron blocks by the stirring paddle.
Description
Technical field
The utility model relates to steel-making equipment field, particularly, relates to a kind of paddle for molten iron cooling.
Background technology
Combined blown converter there are certain requirements entering stove molten iron temperature while smelting, and temperature drift easily causes process splash, and then affects the problem such as stable operation and metal charge loss.KR molten iron adds iron block temperature reduction technology and mainly according to the temperature of molten iron temperature and converter actual needs after desulfurization processing, molten iron is added to a certain amount of iron block, add after iron block and stir and impel iron block fusing, absorb heat to reach by fusing and reduce molten iron temperature effect, but this technique is larger on the impact of paddle life-span, is embodied in iron block and stirs in fusion process serious to paddle mechanical failure.For adapting to this technological requirement, spy re-starts industrial design to original paddle, solves low problem of this process conditions lower stirring paddle life-span.
Utility model content
The utility model object is to provide a kind of KR of being applied to desulfurization process and adopts the paddle industrial design when adding iron block and carrying out molten iron cooling.
Paddle for molten iron cooling of the present utility model, comprising: oar axle 1 and some blades 2, wherein,
Described oar axle 1 is oar axle epimere 11 and oar axle hypomere 12 in slag lining 13 punishment, and the diameter of described oar axle hypomere 12 is than the large 10cm of diameter of oar axle epimere 11;
Seamed edge 21 in the vertical directions of described blade 2 are trapezoidal.
Slag lining 13 described in the utility model refers to well known in the art, and paddle is down to processing the position that when height contacts with scum.Due to paddle turning effort, scum can this position of continuous water eroding and flooding, causes this position easily to damage, and this position does not have scum contact above, can water eroding and flooding, and therefore this handing-over position is just called slag lining.
The up-thin-low-thick design that the utility model adopts has increased oar axle intensity, reduces the impact that iron block brings its impulsive force, thereby improves the oar axle life-span.And because epimere is on molten iron level, do not contact with iron block, therefore do not need to increase diameter.
One as technique scheme is improved, and the seamed edge side section of described blade 2 is inverted trapezoidal.
Another kind as technique scheme improves, and described seamed edge 21 in the vertical directions are trapezoid.
The seamed edge 21 that is trapezoidal design described in the utility model be in paddle manufacturing process by the original mold shape of amendment, then pour into a mould that resistance to material completes.Effect is the resistance to material obscission in order to reduce shock to blade seamed edge of in whipping process iron block and produce, and this kind of design do not affect the mixing effect of paddle.
Paddle design of the present utility model can effectively reduce the mechanical failure of unfused iron block to oar axle and blade while adding iron block cooling, improves the paddle life-span this kind of process conditions.
The utility model simplicity of design, this paddle design has reached the requirement of stablizing the life-span when paddle puddle-ball carries out molten iron cooling smoothly.
Brief description of the drawings
Fig. 1 paddle side view for molten iron cooling of the present utility model.
Fig. 2 paddle top view for molten iron cooling of the present utility model.
Accompanying drawing mark
1, oar axle 2, paddle
11, oar axle epimere 12, oar axle hypomere 13, slag lining
21, seamed edge
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
As shown in Figure 1, 2, paddle for molten iron cooling of the present utility model, comprising: oar axle 1 and some blades 2, wherein, described oar axle 1 is oar axle epimere 11 and oar axle hypomere 12 in slag lining 13 punishment, and the diameter of described oar axle hypomere 12 is than the large 10cm of diameter of oar axle epimere 11; Seamed edge 21 in the vertical directions of described blade 2 are trapezoidal, are preferably trapezoid.
While using the utility model for molten iron cooling, hot-metal bottle is opened to processing position, removed surface scum, by overhead traveling crane and magnechuck, a certain amount of iron block is added in hot-metal bottle.Adopt KR stirring system, utilize paddle of the present utility model, oar axle 1 and blade 2 are goed deep in molten iron, make slag lining 13 be positioned at molten iron level place, oar axle epimere 11 is positioned on molten iron level, oar axle hypomere 12 is stretched under molten iron level, use paddle slowly to stir molten iron 3-5 minute, ensure that iron block all melts, the physics heat absorption of melting by iron block reaches the object that reduces agio temperature.Seamed edge 21 in the vertical directions are trapezoidal design, have reduced shock to blade seamed edge of in whipping process iron block and the resistance to material obscission that produces.After cooling finishes, remove surface scum, complete molten iron cooling operation.
It should be noted last that, above embodiment is only unrestricted in order to the technical solution of the utility model to be described.Although the utility model is had been described in detail with reference to embodiment, those of ordinary skill in the art is to be understood that, the technical solution of the utility model is modified or is equal to replacement, do not depart from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (3)
1. for a paddle for molten iron cooling, this paddle comprises: oar axle (1) and some blades (2), it is characterized in that,
Described oar axle (1) is oar axle epimere (11) and oar axle hypomere (12) in slag lining (13) punishment, and the diameter of described oar axle hypomere (12) is than the large 10cm of diameter of oar axle epimere (11);
Seamed edge (21) in the vertical direction of described blade (2) is trapezoidal.
2. paddle according to claim 1, is characterized in that, the seamed edge side section of described blade (2) is down trapezoid.
3. paddle according to claim 1, is characterized in that, described seamed edge (21) in the vertical direction is trapezoid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420137786.7U CN203803444U (en) | 2014-03-25 | 2014-03-25 | Stirring paddle for cooling molten iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420137786.7U CN203803444U (en) | 2014-03-25 | 2014-03-25 | Stirring paddle for cooling molten iron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203803444U true CN203803444U (en) | 2014-09-03 |
Family
ID=51442256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420137786.7U Expired - Fee Related CN203803444U (en) | 2014-03-25 | 2014-03-25 | Stirring paddle for cooling molten iron |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203803444U (en) |
-
2014
- 2014-03-25 CN CN201420137786.7U patent/CN203803444U/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 |
Granted publication date: 20140903 Termination date: 20170325 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |