CN204817963U - Dysmorphism protective case with function of bleeding - Google Patents
Dysmorphism protective case with function of bleeding Download PDFInfo
- Publication number
- CN204817963U CN204817963U CN201520518276.9U CN201520518276U CN204817963U CN 204817963 U CN204817963 U CN 204817963U CN 201520518276 U CN201520518276 U CN 201520518276U CN 204817963 U CN204817963 U CN 204817963U
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- bell jar
- section
- shape deformation
- straight section
- jar shape
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Abstract
The utility model discloses a protective case of the function of bleeding belongs to continuous casting function refractory material field, and from the top down describes including bowl mouth, tubulose straight section and bell jar in proper order and warp the section triplex, the bell jar form is out of shape the section top and is equipped with the aspirating hole, to outer joint air exhaust device. When continuous casting, the air that coordinates the position to suck protective case by the mouth of a river under protective case bowl mouth and the big package of continuous casting can release the cavity between tubulose straight section and the bell jar form deformation section, is in time taken out by air exhaust device through the aspirating hole, has solved molten steel pollution and secondary oxidation problem that present ubiquitous results in owing to bowl mouthful sealed problem, and is significant to the quality that further promotes high -quality steel grade.
Description
Technical field
The utility model belongs to continuous casting functional fire resisting material field, relates generally to a kind of special-shaped protective casing with air extracting function.
Background technology
Current large-scale continuous casting machine, in casting cycle, generally have employed protective casing immersion casting technique, decreases molten steel and is exposed to the secondary oxidation of steel and suction nitrogen that cause in air, significant to lifting steel billet quality.But because when changing bag, the rim of a bowl of protective casing and the lower mouth of a river of the large bag of continuous casting are difficult to each all accurately centering; even if accurately centering also can cause protective casing sealing effectiveness undesirable due to reasons such as the breakage of sealing fiber mat or the rim of a bowl knot slags, and then air can be caused to be inhaled in protective casing at cooperation position.If the gas such as oxygen, hydrogen, nitrogen sucked can not be discharged will pollute molten steel, also can cause secondary oxidation to molten steel, affect billet quality.And along with current high-quality steel increasingly strict to requirement in this respect, need a kind of technology being inhaled into protective sleeve inner air tube of can discharging badly and solve the problems referred to above.
Utility model content
The purpose of this utility model is that the molten steel caused because protective casing cannot seal completely with the mouth of a river under large bag solving prior art existence pollutes and secondary oxidation problem.
In order to solve the problems referred to above that prior art exists; the utility model is achieved through the following technical solutions: provide a kind of special-shaped protective casing with air extracting function; described protective casing is made up of the rim of a bowl (1), tubulose straight section (2) and bell jar shape deformation section (3) three part from top to bottom successively; it is 50mm-1000mm place that its middle bell jar shape deformation section (3) originates in distance d above tubulose straight section (2) end, and length l is not less than 250mm and is greater than d.Bell jar shape deformation section (3) immerses liquid steel level in use, and the distance h of tubulose straight section (2) end and liquid steel level is not less than 50mm.
Further, the above-described special-shaped protective casing with air extracting function, wherein said bell jar shape deformation section (3) internal diameter is greater than tubulose straight section (2) external diameter, and namely bell jar shape deformation section (3) is positioned at the outside of tubulose straight section (2), and forms a cavity.
Further, the above-described special-shaped protective casing with air extracting function, wherein said bell jar shape deformation section (3) upper outer is provided with aspirating hole (4), externally connects air extractor.
Advantage of the present utility model and good effect are mainly reflected in: in direct casting process; when being flowed out from tubulose straight section (2) end with molten steel by the air sucked between the mouth of a river and protective casing the rim of a bowl (1) under the large bag of continuous casting; under turbulent flow and buoyancy; gas can be spread to the cavity between tubulose straight section (2) and bell jar shape deformation section (3); the air extractor connected by the aspirating hole (4) of bell jar shape deformation section (3) top is extracted out; avoid and suck air to the pollution of molten steel and secondary oxidation problem, thus improve slab quality.
Accompanying drawing explanation
Fig. 1 is overall longitudinal section of the present utility model.In figure, 1, the rim of a bowl, 2, tubulose straight section, 3, bell jar shape deformation section, 4, aspirating hole, d is the distance between bell jar shape deformation section (3) and tubulose straight section (2) end, and l is the length of bell jar shape deformation section (3).
Schematic diagram when Fig. 2 is the utility model use.In figure, 1, the rim of a bowl, 2, tubulose straight section, 3, bell jar shape deformation section, 4, aspirating hole, h is tubulose straight section (2) distance between end and liquid steel level.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the utility model is described in further detail.
Embodiment 1: a kind of special-shaped protective casing with air extracting function is provided; as shown in Figure 1; comprise the rim of a bowl (1), tubulose straight section (2) and bell jar shape deformation section (3) from top to bottom successively, its middle bell jar shape deformation section (3) top is provided with aspirating hole (4), connects air extractor.It is 50mm place that bell jar shape deformation section (3) originates in distance d above tubulose straight section (2) end, and length l is 300mm.In use, as shown in Figure 2, bell jar shape deformation section (3) immerses liquid steel level and the distance h that tubulose straight section (2) end is positioned at from liquid steel level is 50mm.
Embodiment 2: a kind of special-shaped protective casing with air extracting function is provided; as shown in Figure 1; comprise the rim of a bowl (1), tubulose straight section (2) and bell jar shape deformation section (3) from top to bottom successively, its middle bell jar shape deformation section (3) top is provided with aspirating hole (4), connects air extractor.It is 300mm place that bell jar shape deformation section (3) originates in distance d above tubulose straight section (2) end, and length l is 500mm.In use, as shown in Figure 2, bell jar shape deformation section (3) immerses liquid steel level and the distance h that tubulose straight section (2) end is positioned at liquid steel level is 60mm.
Embodiment 3: a kind of special-shaped protective casing with air extracting function is provided; as shown in Figure 1; comprise the rim of a bowl (1), tubulose straight section (2) and bell jar shape deformation section (3) from top to bottom successively, its middle bell jar shape deformation section (3) top is provided with aspirating hole (4), connects air extractor.It is 600mm place that bell jar shape deformation section (3) originates in distance d above tubulose straight section (2) end, and length l is 800mm.In use, as shown in Figure 2, bell jar shape deformation section (3) immerses liquid steel level and the distance h that tubulose straight section (2) end is positioned at liquid steel level is 100mm.
When molten steel is flowed out by tubulose straight section (2) end; be discharged in the cavity between tubulose straight section (2) and bell jar shape deformation section (3) by the air sucked between the mouth of a river and protective casing under the large bag of continuous casting; the air extractor connected by the aspirating hole (4) of bell jar shape deformation section (3) top is extracted out in time, avoids and sucks air to the pollution of molten steel and secondary oxidation.
The utility model still has multiple concrete embodiment, all technical schemes that all equivalent modifications of carrying out the utility model and equivalent variations are formed, all within the scope that the utility model is claimed.
Claims (4)
1. there is a special-shaped protective casing for air extracting function, it is characterized in that: protective casing is made up of the rim of a bowl (1), tubulose straight section (2) and bell jar shape deformation section (3) three part from top to bottom successively.
2. the special-shaped protective casing with air extracting function according to claim 1, is characterized in that: it is 50mm-1000mm place that bell jar shape deformation section (3) originates in distance d above tubulose straight section (2) end, and length l is not less than 250mm, and is greater than d.
3. the special-shaped protective casing with air extracting function according to claim 1 and 2; it is characterized in that: described bell jar shape deformation section (3) internal diameter is greater than tubulose straight section (2) external diameter; namely bell jar shape deformation section (3) is positioned at the outside of tubulose straight section (2), and forms a cavity.
4. the special-shaped protective casing with air extracting function according to claim 3, is characterized in that: bell jar shape deformation section (3) upper outer is provided with aspirating hole (4), externally connects air extractor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520518276.9U CN204817963U (en) | 2015-07-17 | 2015-07-17 | Dysmorphism protective case with function of bleeding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520518276.9U CN204817963U (en) | 2015-07-17 | 2015-07-17 | Dysmorphism protective case with function of bleeding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204817963U true CN204817963U (en) | 2015-12-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520518276.9U Active CN204817963U (en) | 2015-07-17 | 2015-07-17 | Dysmorphism protective case with function of bleeding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204817963U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112170826A (en) * | 2020-08-21 | 2021-01-05 | 华北理工大学 | Steel ladle protective sleeve structure, continuous casting device and argon blowing pouring smelting method |
-
2015
- 2015-07-17 CN CN201520518276.9U patent/CN204817963U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112170826A (en) * | 2020-08-21 | 2021-01-05 | 华北理工大学 | Steel ladle protective sleeve structure, continuous casting device and argon blowing pouring smelting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 266201 No. 1, Zhengwang Road, Jimo environmental protection industrial park, Qingdao, Shandong Patentee after: Qingdao Zhengwang Material Co.,Ltd. Address before: 266201 No. 1, Zhengwang Road, Jimo environmental protection industrial park, Qingdao, Shandong Patentee before: QINGDAO HIWORLD MOLTEN STEEL CONTROL CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder |