CN204159854U - Tundish bottom blowing structure - Google Patents
Tundish bottom blowing structure Download PDFInfo
- Publication number
- CN204159854U CN204159854U CN201420588378.3U CN201420588378U CN204159854U CN 204159854 U CN204159854 U CN 204159854U CN 201420588378 U CN201420588378 U CN 201420588378U CN 204159854 U CN204159854 U CN 204159854U
- Authority
- CN
- China
- Prior art keywords
- brick
- inclination
- air
- venting slit
- cup
- 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
- 238000007664 blowing Methods 0.000 title claims abstract description 13
- 239000011449 brick Substances 0.000 claims abstract description 64
- 238000013022 venting Methods 0.000 claims abstract description 35
- 229910000831 Steel Inorganic materials 0.000 abstract description 10
- 239000010959 steel Substances 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 9
- 239000012535 impurity Substances 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 101100327917 Caenorhabditis elegans chup-1 gene Proteins 0.000 description 5
- 101700004678 SLIT3 Proteins 0.000 description 5
- 102100027339 Slit homolog 3 protein Human genes 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
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- Continuous Casting (AREA)
Abstract
Bubble population distribution in molten steel that the utility model is intended to solve existing tundish bottom blowing structural generation is little, the problem of impurity-eliminating effect difference, a kind of tundish bottom blowing structure is provided, it comprises the brick cup and air brick that are combined together, air brick lower surface has hemispheric air chamber, some vertical venting slit are provided with in air brick, vertical venting slit is communicated with the upper surface of air chamber and air brick, some inclination venting slit are provided with in brick cup and air brick, inclination venting slit is communicated with the end face of air chamber and brick cup, each inclination venting slit becomes radial distribution, and there is multiple different angle of inclination, described inclination venting slit comprises the epimere be located in brick cup and the hypomere be located in air brick, and brick cup is provided with link slot on its inner surface contacted with air brick, and link slot is communicated with epimere and the hypomere of inclination venting slit.The beneficial effects of the utility model are, bubble population distribution in molten steel is large, good impurity removing effect, gas effciency are high, cost-saving.
Description
Technical field
The utility model relates to a kind of refractory product, particularly relates to a kind of tundish bottom blowing structure.
Background technology
Steel ladle bottom argon blowing technology is impurity removing technology conventional in steel-making, its principle is, by being blown into inert gas from ladle bottom, forms tiny bubble population after air brick, slag inclusion in molten steel is carried into the slag blanket on molten steel by bubble capture, thus reaches the effect of removal of impurities.Obvious, the distribution of bubble population is wider, bubble contact to catch the probability of the slag in molten steel higher, and impurity-eliminating effect is also better.But tundish bottom blowing structure of the prior art can only form bubble flow straight up, and bubble distribution scope is little, and impurity-eliminating effect is poor.
Such as, in existing open file, notification number is had to be CN202688367U, the day for announcing is the Chinese patent literature of 2013-01-23, disclose a kind of ladle bottom blowing air brick, comprise brick core body, ventail and base, ventail is provided with the ventilative seam of grooved of through ventail upper and lower end face, ventail is positioned at the inside of brick core body, the bottom surface of ventail is provided with base, and base is positioned at the inside of brick core body, the upper surface of base is provided with groove, the bottom of groove is provided with the ventilative slit of through base, the lower end of ventail is positioned at described groove, the bottom of described brick core body is provided with cover plate, air chamber is formed between the bottom surface and cover plate of described base, the upper surface of described brick core body is provided with the louver of a ring around ventail.The weak point of this technical scheme is, can only form bubble flow straight up, and bubble distribution scope is little, and impurity-eliminating effect is poor.
Utility model content
For the bubble population overflow table area solving the generation of existing air brick is little and concentrated, bubble population distribution in molten steel is little, the problem of impurity-eliminating effect difference, the utility model provides a kind of bubble population overflow table area large and disperses, the bubble population air brick that distribution is large in molten steel, good impurity removing effect, gas effciency are high.
To achieve these goals, the technical solution adopted in the utility model is:
A kind of tundish bottom blowing structure, comprise the brick cup and air brick that are combined together, air brick lower surface has hemispheric air chamber, some vertical venting slit are provided with in air brick, vertical venting slit is communicated with the upper surface of air chamber and air brick, is provided with some inclination venting slit in brick cup and air brick, and inclination venting slit is communicated with the end face of air chamber and brick cup, each inclination venting slit becomes radial distribution, and has multiple different angle of inclination.Hemispherical air chamber makes air chamber have larger surface area, and is conducive to gas and enters venting slit from different angles; The radial inclination venting slit of vertical venting slit and differing tilt angles be arranged so that gas can be blown into molten steel from different angles, gas not only can appear from the upper surface of air brick, and can appear from the upper surface of brick cup, thus make bubble population distribution larger.
As preferably, inclination venting slit comprises the epimere be located in brick cup and the hypomere be located in air brick, and brick cup is provided with link slot on its inner surface contacted with air brick, the epimere of link slot connection inclination venting slit and hypomere.Link slot can effectively be communicated with inclination venting slit epimere and lower end, avoids the blocking causing inclination venting slit because of the relative offset between brick cup and air brick.
As preferably, the cannelure of link slot to be cross section be rectangle.The cannelure processing of square-section is simple.
The beneficial effects of the utility model are: bubble population overflow table area is large and disperse, and bubble population distribution in molten steel is large, good impurity removing effect, gas effciency are high, cost-saving.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
In figure: 1. brick cup, 12. link slots, 2. air brick, 21. air chambers, 22. vertical venting slit, 3. inclination venting slit.
Detailed description of the invention
The utility model is described in further detail with specific embodiment by reference to the accompanying drawings.
As shown in Figure 1, a kind of tundish bottom blowing structure, comprise the brick cup 1 and air brick 2 that are combined together, air brick 2 lower surface has hemispheric air chamber 21, air chamber 21 is arranged on the centre position of air brick 1 lower surface, some vertical venting slit 22 are provided with in air brick 2, vertical venting slit 22 is communicated with the upper surface of air chamber 21 and air brick 2, some inclination venting slit 3 are provided with in brick cup 1 and air brick 2, inclination venting slit 3 is communicated with the end face of air chamber 21 and brick cup 1, the radial distribution of each inclination venting slit 3 one-tenth, and there is multiple different angle of inclination; Described inclination venting slit 3 comprises the epimere be located in brick cup 1 and the hypomere be located in air brick 2, and brick cup 1 is provided with link slot 12 on its inner surface contacted with air brick, and link slot 12 is communicated with epimere and the hypomere of inclination venting slit 3; Link slot 12 for cross section be the cannelure of rectangle.
Claims (3)
1. a tundish bottom blowing structure, comprise the brick cup (1) and air brick (2) that are combined together, it is characterized in that, air brick (2) lower surface has hemispheric air chamber (21), some vertical venting slit (22) are provided with in air brick (2), vertical venting slit (22) is communicated with the upper surface of air chamber (21) and air brick (2), some inclination venting slit (3) are provided with in brick cup (1) and air brick (2), inclination venting slit (3) is communicated with the end face of air chamber (21) and brick cup (1), each inclination venting slit (3) becomes radial distribution, and there is multiple different angle of inclination.
2. tundish bottom blowing structure according to claim 1, it is characterized in that, described inclination venting slit (3) comprises the epimere be located in brick cup (1) and the hypomere be located in air brick (2), brick cup (1) is provided with link slot (12) on its inner surface contacted with air brick, and link slot (12) is communicated with epimere and the hypomere of inclination venting slit (3).
3. tundish bottom blowing structure according to claim 1 and 2, is characterized in that, link slot (12) for cross section be the cannelure of rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420588378.3U CN204159854U (en) | 2014-10-13 | 2014-10-13 | Tundish bottom blowing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420588378.3U CN204159854U (en) | 2014-10-13 | 2014-10-13 | Tundish bottom blowing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204159854U true CN204159854U (en) | 2015-02-18 |
Family
ID=52533582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420588378.3U Expired - Lifetime CN204159854U (en) | 2014-10-13 | 2014-10-13 | Tundish bottom blowing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204159854U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105855529A (en) * | 2016-06-08 | 2016-08-17 | 武汉科技大学 | Micro argon bubble bottom blowing air brick for tundish refining |
| CN107739778A (en) * | 2017-11-27 | 2018-02-27 | 中航上大高温合金材料有限公司 | A kind of steel ladle bottom argon blowing device and its refining stirring means |
-
2014
- 2014-10-13 CN CN201420588378.3U patent/CN204159854U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105855529A (en) * | 2016-06-08 | 2016-08-17 | 武汉科技大学 | Micro argon bubble bottom blowing air brick for tundish refining |
| CN107739778A (en) * | 2017-11-27 | 2018-02-27 | 中航上大高温合金材料有限公司 | A kind of steel ladle bottom argon blowing device and its refining stirring means |
| CN107739778B (en) * | 2017-11-27 | 2019-03-22 | 中航上大高温合金材料有限公司 | A kind of steel ladle bottom argon blowing device and its refining stirring means |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150218 |