CN204373418U - The compound air curtain device of a kind of intermediate frequency furnace - Google Patents
The compound air curtain device of a kind of intermediate frequency furnace Download PDFInfo
- Publication number
- CN204373418U CN204373418U CN201420834835.2U CN201420834835U CN204373418U CN 204373418 U CN204373418 U CN 204373418U CN 201420834835 U CN201420834835 U CN 201420834835U CN 204373418 U CN204373418 U CN 204373418U
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- CN
- China
- Prior art keywords
- circular arc
- arc pipeline
- pipeline
- upper circular
- air curtain
- 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 - Fee Related
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Abstract
The utility model discloses the compound air curtain device of a kind of intermediate frequency furnace, be made up of upper circular arc pipeline, lower circular arc pipeline, intermediate conduit and external pipe, upper circular arc pipeline is connected with intermediate conduit with lower circular arc pipeline, upper circular arc pipeline is provided with external pipe, upper circular arc pipeline radian is 4 π/4, π/3 to 7, uniformly to the circular arc center of circle on inner arc open 3 to 8 pores, Ge Youyi hole, circular arc two ends.Lower circular arc pipeline is identical with upper circular arc pipeline size structure, and coaxial on locus.In the axial direction, upper circular arc pipeline projects overlapping with lower circular arc pipeline, and on it, the projection of institute's open pore is also overlapping.Make protection gas form double-deck gas curtain by the duplex of air curtain device, double-deck gas curtain is than individual layer gas curtain isolated environment gas better, and abundant isolated environment gas, structure is simple, easy to use.Better air seal protective effect is provided.
Description
Technical field
The utility model relates to intermediate frequency (IF) smelting technical field, more specifically relates to the compound air curtain device of a kind of intermediate frequency furnace, is applicable to the atmosphere protection of melt in intermediate frequency furnace.
Background technology
At present, known air curtain device is individual layer circular arc pipeline air curtain device, is that the circular arc pipeline of certain arc length is arranged on intermediate frequency fire door, connects outside with external pipe.To the perforate of the circular arc center of circle on pipeline inner arc, protective gas forms individual layer gas curtain from pore ejection.But this kind of individual layer gas curtain effectively can not completely cut off extraneous gas, and in the intermediate frequency furnace that can not adequately protect, melt is not polluted by environmental gas.
Summary of the invention
Can not the deficiency of abundant isolated environment gas in order to overcome existing individual layer gas curtain; the purpose of this utility model there are provided the compound air curtain device of a kind of intermediate frequency furnace, and this device makes the protective gas of ejection form double-deck gas curtain, abundant isolated environment gas; structure is simple, easy to use.
In order to realize above-mentioned object, the utility model by the following technical solutions:
The compound air curtain device of a kind of intermediate frequency furnace, is made up of upper circular arc pipeline, lower circular arc pipeline, intermediate conduit and external pipe.Upper circular arc pipeline is connected with intermediate conduit with lower circular arc pipeline, and upper circular arc pipeline is provided with external pipe, is conducive to passing into protection gas.Upper circular arc pipeline radian is 4 π/4, π/3 to 7, uniformly to the circular arc center of circle on inner arc opens 3 to 8 pores, wherein, and Ge Youyi hole, circular arc two ends.Lower circular arc pipeline is identical with upper circular arc pipeline size structure, and coaxial on locus.In the axial direction, upper circular arc pipeline projects overlapping with lower circular arc pipeline, and on it, the projection of institute's open pore is also overlapping.Air curtain device loads intermediate frequency furnace from fire door, upper circular arc pipeline with on intermediate frequency fire door along concordant.Air flue has been stayed in pore relevant position during cupola drop lining.Pass into protection gas from outside during air curtain device work, protection gas forms double-layer compound gas curtain from pore ejection.
The beneficial effects of the utility model are:
Make protection gas form double-deck gas curtain by the duplex of air curtain device, double-deck gas curtain is than individual layer gas curtain isolated environment gas better, and abundant isolated environment gas, structure is simple, easy to use.Better air seal protective effect is provided.
Accompanying drawing explanation
Fig. 1 is the structural representation of the compound air curtain device of a kind of intermediate frequency furnace.
Fig. 2 is the top view of the compound air curtain device of a kind of intermediate frequency furnace.
Fig. 3 is the side view of the compound air curtain device of a kind of intermediate frequency furnace.
Wherein: 1. external pipe, 2. go up circular arc pipeline, 3. descend circular arc pipeline, 4. intermediate conduit.
Detailed description of the invention
embodiment 1:
Below in conjunction with drawings and Examples, the utility model is further illustrated.
The compound air curtain device of a kind of intermediate frequency furnace, air curtain device main body is made up of upper circular arc pipeline 2, lower circular arc pipeline 3, intermediate conduit 4 and external pipe 1.It is characterized in that: upper circular arc pipeline 2 is connected with intermediate conduit 4 with lower circular arc pipeline 3, upper circular arc pipeline 2 is provided with external pipe 1, is conducive to passing into protection gas.Upper circular arc pipeline 2 radian is 4 π/3 or 3 pi/2s or 5 π/3 or 7 π/4, uniformly to the circular arc center of circle on inner arc opens 3 or 4 or 6 or 8 pores, and lower circular arc pipeline 3 is identical with upper circular arc pipeline 2 size structure.In the top view of Fig. 2, upper circular arc pipeline 2 projects overlapping with lower circular arc pipeline 3, and on it, institute's perforate projection is also overlapping.Air curtain device loads intermediate frequency furnace from fire door, upper circular arc pipeline 2 with on intermediate frequency fire door along concordant.Air flue has been stayed in pore relevant position during cupola drop lining.Pass into protection gas from outside during air curtain device work, protection gas forms double-layer compound gas curtain from pore ejection.
Claims (3)
1. the compound air curtain device of intermediate frequency furnace, be made up of upper circular arc pipeline (2), lower circular arc pipeline (3), intermediate conduit (4) and external pipe (1), it is characterized in that: upper circular arc pipeline (2) is connected with intermediate conduit (4) with lower circular arc pipeline (3), upper circular arc pipeline (2) is provided with external pipe (1), upper circular arc pipeline radian is 4 π/4, π/3 to 7, uniformly to the circular arc center of circle on inner arc open 3 to 8 pores, lower circular arc pipeline (3) is identical with upper circular arc pipeline (2) size structure.
2. the compound air curtain device of a kind of intermediate frequency furnace according to claim 1, is characterized in that: described Ge Youyi hole, circular arc two ends.
3. the compound air curtain device of a kind of intermediate frequency furnace according to claim 1, is characterized in that: described upper circular arc pipeline (2) is coaxial on locus with lower circular arc pipeline (3), and the overlap that projects in the axial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420834835.2U CN204373418U (en) | 2014-12-25 | 2014-12-25 | The compound air curtain device of a kind of intermediate frequency furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420834835.2U CN204373418U (en) | 2014-12-25 | 2014-12-25 | The compound air curtain device of a kind of intermediate frequency furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204373418U true CN204373418U (en) | 2015-06-03 |
Family
ID=53329632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420834835.2U Expired - Fee Related CN204373418U (en) | 2014-12-25 | 2014-12-25 | The compound air curtain device of a kind of intermediate frequency furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204373418U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105091589A (en) * | 2015-08-14 | 2015-11-25 | 共慧冶金设备科技(苏州)有限公司 | Magnesium alloy gas protection smelting furnace for laboratory |
| CN109307075A (en) * | 2018-11-07 | 2019-02-05 | 重庆长安工业(集团)有限责任公司 | Hermetic seal protective device |
-
2014
- 2014-12-25 CN CN201420834835.2U patent/CN204373418U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105091589A (en) * | 2015-08-14 | 2015-11-25 | 共慧冶金设备科技(苏州)有限公司 | Magnesium alloy gas protection smelting furnace for laboratory |
| CN109307075A (en) * | 2018-11-07 | 2019-02-05 | 重庆长安工业(集团)有限责任公司 | Hermetic seal protective device |
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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: 20150603 Termination date: 20211225 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |