CN204934581U - A kind of for anti-nitrogen pick-up protection tube during pouring molten steel - Google Patents
A kind of for anti-nitrogen pick-up protection tube during pouring molten steel Download PDFInfo
- Publication number
- CN204934581U CN204934581U CN201520734792.5U CN201520734792U CN204934581U CN 204934581 U CN204934581 U CN 204934581U CN 201520734792 U CN201520734792 U CN 201520734792U CN 204934581 U CN204934581 U CN 204934581U
- Authority
- CN
- China
- Prior art keywords
- molten steel
- pipeline section
- steel
- protection tube
- nitrogen pick
- 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
Links
Abstract
For anti-nitrogen pick-up protection tube during pouring molten steel, enter pipeline section by molten steel, enter the molten steel that pipeline section is connected carry pipeline section to form with molten steel, it is T-shaped that its molten steel enters pipeline section, is provided with ambiguity ceramic layer and coat of metal successively outward at molten steel conveying pipeline section.The utility model can effectively prevent from can not producing nitrogen pick-up phenomenon in the casting process of molten steel, the nitrogen content watered in injection meets steel grade demand, without the need to changing steel because of nitrogen content problem or melt down process, correspondingly the energy, manpower and raw material are saved, the timely implementation rate of contract is made to obtain corresponding raising, and easy to implement.
Description
Technical field
The utility model relates to bag pipe in a kind of continuous casting, specifically belongs to a kind of for anti-nitrogen pick-up protection tube during pouring molten steel.
Background technology
In steel-making, for ensureing that the composition of nitrogen in molten steel is in the scope controlled, therefore the measure of connection protection tube is taked to contact to reduce molten steel with air in continuous casting zone to the cast between great Bao and middle bag.But at the protection tube that the anti-nitrogen pick-up measure of prior art uses, be only outside the Pass the refractory material of molten steel approach section, be provided with layer of metal shell, be then exposed refractory masses completely at the pipeline section of steel flow warp.Because refractory material has certain gas permeability; therefore in the casting process of molten steel; molten steel is by forming a strong negative pressuren zone at steel circulation road after protection tube; air is caused to permeate in molten steel; thus cause the nitrogen content in molten steel to increase; this, for the strict steel grade controlling nitrogen content, is very disadvantageous phenomenon.For meeting user's requirement, the steel billet now poured into or carry out changing steel process, or carry out melting down process.Make bad delivery, affect the normal execution of contract, and make manpower, the energy etc. cause waste, increase production cost.
Utility model content
The deficiency that the utility model exists for prior art; there is provided a kind of can effectively preventing can not produce nitrogen pick-up phenomenon in the casting process of molten steel; the nitrogen content watered in injection meets steel grade demand, without the need to change steel because of nitrogen content problem or melt down process for anti-nitrogen pick-up protection tube during pouring molten steel.
Realize the technical measures of above-mentioned purpose:
A kind of for anti-nitrogen pick-up protection tube during pouring molten steel; enter pipeline section by molten steel, enter the molten steel that pipeline section is connected with molten steel and carry pipeline section to form; it is: it is T-shaped that molten steel enters pipeline section, is provided with ambiguity ceramic layer and coat of metal successively outward at molten steel conveying pipeline section.
Feature of the present utility model: can effectively prevent from can not producing nitrogen pick-up phenomenon in the casting process of molten steel, the nitrogen content watered in injection meets steel grade demand, without the need to changing steel because of nitrogen content problem or melt down process, correspondingly the energy, manpower and raw material are saved, the timely implementation rate of contract is made to obtain corresponding raising, and easy to implement.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure: 1-molten steel enters pipeline section, 2-molten steel conveying pipeline section, 3-coat of metal, 4-ambiguity ceramic layer.
Detailed description of the invention
Be described further below in conjunction with accompanying drawing:
For anti-nitrogen pick-up protection tube during pouring molten steel, enter pipeline section 1 by molten steel, enter the molten steel that pipeline section 1 is connected carry pipeline section 2 to form with molten steel, molten steel is entered pipeline section 1 and is designed to T-shaped by it, and only adopts refractory material preparation; Outside the refractory masses of molten steel conveying pipeline section 2; first adopt the coat of metal 3 that parcel mode or bolt connecting mode connection sheet metal are made; and make to be provided with space between the refractory masses of molten steel conveying pipeline section 2 and coat of metal 3, then in the space between the refractory masses and coat of metal 3 of molten steel conveying pipeline section 2, add ambiguity pottery and form ambiguity ceramic layer 4.
After below Baogang's liquid level during the utility model inserts, along with molten steel flows through molten steel conveying pipeline section 2, the temperature of molten steel passes to and makes ambiguity ceramic layer 4 become molten condition, gives shutoff to the hole of refractory masses; Now coat of metal 3 is not only played a supporting role to the ambiguity ceramic layer 4 of molten condition, and plays isolated air effect to refractory masses together with ambiguity ceramic layer 4, thus prevents the generation of nitrogen pick-up phenomenon.
This detailed description of the invention is only the best and exemplifies, the restricted enforcement not to technical solutions of the utility model.
Claims (1)
1. one kind for anti-nitrogen pick-up protection tube during pouring molten steel; enter pipeline section by molten steel, enter the molten steel that pipeline section is connected with molten steel and carry pipeline section to form; it is characterized in that: it is T-shaped that molten steel enters pipeline section, be provided with ambiguity ceramic layer and coat of metal successively outward at molten steel conveying pipeline section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520734792.5U CN204934581U (en) | 2015-09-22 | 2015-09-22 | A kind of for anti-nitrogen pick-up protection tube during pouring molten steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520734792.5U CN204934581U (en) | 2015-09-22 | 2015-09-22 | A kind of for anti-nitrogen pick-up protection tube during pouring molten steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204934581U true CN204934581U (en) | 2016-01-06 |
Family
ID=55002037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520734792.5U Expired - Fee Related CN204934581U (en) | 2015-09-22 | 2015-09-22 | A kind of for anti-nitrogen pick-up protection tube during pouring molten steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204934581U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108285947A (en) * | 2017-02-28 | 2018-07-17 | 安徽工业大学 | A kind of molten steel alloyage process in protection tapping process |
-
2015
- 2015-09-22 CN CN201520734792.5U patent/CN204934581U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108285947A (en) * | 2017-02-28 | 2018-07-17 | 安徽工业大学 | A kind of molten steel alloyage process in protection tapping process |
| CN108285947B (en) * | 2017-02-28 | 2019-09-27 | 安徽工业大学 | A kind of molten steel alloyage process in protection tapping process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104827019B (en) | Automatic ladle drainage device | |
| CN105750515A (en) | Small-capacity master alloy casting system | |
| CN104384485B (en) | A kind of directed hollow moving turbine blade double buffering running gate system | |
| CN103990787A (en) | Device and method for removing molten steel slag inclusion in continuous casting tundish | |
| CN206605009U (en) | Annular cast running gate system | |
| CN104174819B (en) | The climb casting technique of machine third-level planetary frame of a kind of ocean platform | |
| CN207823871U (en) | A kind of 2500LB valves running gate system | |
| CN104249149B (en) | A kind of channel-type sensing heating tundish and its casting method | |
| CN103433470B (en) | A kind of quick-changing type spray bag | |
| CN204934581U (en) | A kind of for anti-nitrogen pick-up protection tube during pouring molten steel | |
| CN103962517B (en) | A kind of apparatus for pouring of die casting electrode bar and pouring procedure thereof | |
| CN108637199A (en) | The method for pouring the first stove ladle molten steel temperature is unwrapped among a kind of reduction | |
| CN202291395U (en) | Air-blowing tapping pocket block | |
| CN203184610U (en) | Steel ingot mold for large-scale and extremely thick slab | |
| CN202762983U (en) | Efficient production tool of wide and thick slabs for wide and thick plate rolling mill | |
| CN205551453U (en) | Package is watered in skimming of non ferrous metal mould gravity casting pouring metal liquid | |
| CN204159828U (en) | A kind of combination ingot mould of different cast slab of once casting | |
| CN202910282U (en) | Novel centrifugation roller core-filling pouring pipe | |
| CN204381361U (en) | A kind of submersed nozzle of Novel argon blowing structure | |
| CN207086891U (en) | Aluminium and used in aluminium alloy casting lifting chute | |
| CN206373354U (en) | A kind of big back stall brick fixed structure of continuous casting | |
| CN206373353U (en) | A kind of steel ladle sliding mechanism attachment structure | |
| CN203253890U (en) | Self-cooled molding steel die for casting steel ingot | |
| CN102489679A (en) | Anti-blocking water feeding port with low air permeability | |
| CN202744587U (en) | Refined steel ladle double-layer air brick |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170809 Address after: 430083 Qingshan District, Hubei, Wuhan factory before the door No. 2 Patentee after: Wuhan iron and Steel Company Limited Address before: 430080 Wuhan, Hubei Friendship Road, No. 999, Wuchang Patentee before: Wuhan Iron & Steel (Group) Corp. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160106 Termination date: 20200922 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |