CN204690034U - A kind of LF feed streams duct device - Google Patents
A kind of LF feed streams duct device Download PDFInfo
- Publication number
- CN204690034U CN204690034U CN201420545765.9U CN201420545765U CN204690034U CN 204690034 U CN204690034 U CN 204690034U CN 201420545765 U CN201420545765 U CN 201420545765U CN 204690034 U CN204690034 U CN 204690034U
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- CN
- China
- Prior art keywords
- runner
- supervisor
- reinforced
- stainless steel
- duct road
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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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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model discloses a kind of LF feed streams duct device, it is characterized in that: comprise reinforced supervisor's runner, a stainless steel gas scavenging duct road is provided with at the reinforced supervisor's runner bending position outer place near LF bell, diameter 10mm≤φ≤the 15mm in stainless steel gas scavenging duct road, stainless steel gas scavenging duct road and reinforced angle 10 °≤α≤30 ° be responsible between runner, stainless steel gas scavenging duct road source of the gas used is rare gas element, and inert gas flow is 20 ~ 40NL/min.The utility model structure is simple, cheap, well can prevent the feed blocking of reinforced supervisor's runner bending position, realize the accuracy of material alloying; Reduce the envrionment temperature of reinforced supervisor's runner, extend the work-ing life of supervisor's runner; Prevent the excessive of smoke dust, improve site environment.
Description
Technical field
The utility model relates to a kind of LF feed streams duct device, belongs to the technical field of steel-making.
Background technology
LF also claims ladle refining furnace, there is less investment, the feature that function is strong, therefore in recent years by increasing steel production enterprise widespread use, critical function is under non-oxidizing atmosphere, manufactures high alkalinity reducing slag, and be blown into rare gas element from ladle bottom by electric-arc heating, strengthening purifying reaction, carries out the metallurgical reactions such as the deoxidation of molten steel, desulfurization, degassed, alloying.Its objective is and accurately adjust molten steel composition and temperature, improve the purity of steel, and wherein reinforced in the molten steel quality of accuracy to Finished Steel seems particularly important, therefore LF automatization Loading Control System is widely adopted because of its accurate charging control, but in actual production process, there is following series of problems: (1) exists because of the blocking of reinforced supervisor's runner often at reinforced supervisor's runner crooked position, occurs reinforced inaccurate, cause molten steel composition to act improperly phenomenon; (2) because moment when supervisor's runner reinforced near bell position is produced is in hot environment, cause the distortion of reinforced supervisor's runner damaged.(3) LF flue gas is excessive from reinforced supervisor's runner, worsens site environment.
Summary of the invention
For solving the problems of the technologies described above, the utility model provides a kind of LF feed streams duct device, and the technical scheme adopted is as follows:
A kind of steel LF feed streams duct device, comprise bell and be positioned at supervisor's runner that bell side communicates with bell side, supervisor's runner is bending to be arranged, gas purging pipeline is provided with at supervisor's runner crooked position, gas purging pipe diameter 10mm≤φ≤15mm, part angulation α after bending with main flow conduit, 10 °≤α≤30.
The utility model structure is simple, cheap, well can prevent the feed blocking of reinforced supervisor's runner bending position, realize the accuracy of material alloying; Reduce the envrionment temperature of reinforced supervisor's runner, extend the work-ing life of supervisor's runner; Prevent the excessive of smoke dust, improve site environment.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
1 supervisor runner 2 bell 3 stainless steel gas scavenging duct road 4 rare gas element.
Embodiment
The correlation technique content do not addressed below all can adopt or use for reference prior art.
Technical scheme in the application is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the embodiment of the present application, technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment is only some embodiments of the present application, instead of whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all should belong to the scope of the application's protection.
As shown in Figure 1, a kind of steel LF feed streams duct device, it is characterized in that: comprise reinforced supervisor's runner (1), a stainless steel gas scavenging duct road (3) is provided with at reinforced supervisor's runner (1) the bending position outer place near LF bell (2), diameter 10mm≤φ≤the 15mm in stainless steel gas scavenging duct road (3), stainless steel gas scavenging duct road (3) and reinforced angle 10 °≤α≤30 ° be responsible between runner (1), stainless steel gas scavenging duct road (3) source of the gas used is rare gas element (4), inert gas flow is 20 ~ 40NL/min.The utility model structure is simple, cheap, well can prevent the feed blocking of reinforced supervisor's runner bending position, realize the accuracy of material alloying; Reduce the envrionment temperature of reinforced supervisor's runner, extend the work-ing life of supervisor's runner; Prevent the excessive of smoke dust, improve site environment.
The above is only the preferred implementation of the application, those skilled in the art is understood or realizes the application.To be apparent to one skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from the spirit or scope of the application, can realize in other embodiments.Therefore, the application can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (1)
1. a LF feed streams duct device, it is characterized in that: comprise bell and be positioned at supervisor's runner that bell side communicates with bell side, supervisor's runner is bending to be arranged, gas purging pipeline is provided with at supervisor's runner crooked position, gas purging pipe diameter 10mm≤φ≤15mm, part angulation α after bending with main flow conduit, 10 °≤α≤30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420545765.9U CN204690034U (en) | 2014-09-23 | 2014-09-23 | A kind of LF feed streams duct device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420545765.9U CN204690034U (en) | 2014-09-23 | 2014-09-23 | A kind of LF feed streams duct device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204690034U true CN204690034U (en) | 2015-10-07 |
Family
ID=54230347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420545765.9U Expired - Fee Related CN204690034U (en) | 2014-09-23 | 2014-09-23 | A kind of LF feed streams duct device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204690034U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105506222A (en) * | 2015-12-08 | 2016-04-20 | 马鞍山钢铁股份有限公司 | Rapid unloading device for discharging pipe and water-cooling discharging pipe as well as water-cooling discharging pipe setting method |
-
2014
- 2014-09-23 CN CN201420545765.9U patent/CN204690034U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105506222A (en) * | 2015-12-08 | 2016-04-20 | 马鞍山钢铁股份有限公司 | Rapid unloading device for discharging pipe and water-cooling discharging pipe as well as water-cooling discharging pipe setting method |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151007 Termination date: 20170923 |