CN202052934U - Pouring protection quick replacement water supply nozzle for continuous casting steelmaking - Google Patents
Pouring protection quick replacement water supply nozzle for continuous casting steelmaking Download PDFInfo
- Publication number
- CN202052934U CN202052934U CN2011201303516U CN201120130351U CN202052934U CN 202052934 U CN202052934 U CN 202052934U CN 2011201303516 U CN2011201303516 U CN 2011201303516U CN 201120130351 U CN201120130351 U CN 201120130351U CN 202052934 U CN202052934 U CN 202052934U
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- zirconium core
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- zirconium
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Abstract
The utility model provides a pouring protection quick replacement water supply nozzle for continuous casting steelmaking, which comprises a matrix. A round hollow cavity is arranged in the matrix, the bottom diameter of the hollow cavity is larger than diameter of the upper portion or the top end of the hollow cavity, and the inner wall of the hollow cavity gradually and smoothly extends upwards from a portion, with the maximum diameter, of the bottom end to the upper portion or the top end with a small diameter. A through hole is arranged in the middle of a zirconium core which is mounted in the hollow cavity, the diameter of the bottom of the zirconium core outer wall is larger than that of the upper portion of the zirconium core, outer diameter of the outer wall of the zirconium core is gradually reduced from a portion, with the maximum diameter, of the bottom end to the upper end port of the zirconium core, and the outer wall of the zirconium core is connected with the matrix through adhesive pug. The pouring protection quick replacement water supply nozzle is capable of overcoming defects in the prior art and is free of steel leakage, and service life of the water supply nozzle can be prolonged.
Description
Technical field
The utility model relates to the filling pipe end that uses in iron and steel enterprise's production when the continuous pouring molten steel, be a kind of continuous casting steel-making protection cast quick change filling pipe end.
Background technology
Iron and steel enterprise needs continuity in producing when pouring molten steel, therefore, filling pipe end must keep tight, synchronous cooperating with the following mouth of a river in tundish, just can reach requirement of safe production.Present widely used filling pipe end, the middle zirconium core top external diameter of installing adopts the bonding pug to link greater than lower outer diameter between zirconium core and parent, the service life of this filling pipe end is the longest to be between 50-70 hour, in particular cases be lower than 50 hours service life, because the molten steel accident that leaks easily takes place this filling pipe end, take place for fear of production accident, in the use, generally when being lower than service life, change, therefore, the usage quantity of filling pipe end is bigger, and enterprise's production cost is higher.In order to address the above problem, the applicant is through studying discovery for a long period of time, though the damage of zirconium core was to destroy the filling pipe end one of the main reasons in service life during filling pipe end used, but, because filling pipe end is at high temperature worked, the bonding pug at high temperature easily takes place softening for a long time, cause zirconium core and parent to break away from, the zirconium core moves phenomenon on easily taking place, cause producing the space between tightly the cooperating synchronously of filling pipe end and the following mouth of a river, the molten steel accident that leaks takes place, and this moment, the destructiveness of zirconium core reaches far away needs the stage changed.
The utility model content
The purpose of this utility model is, a kind of continuous casting steel-making protection cast quick change filling pipe end is provided, and it can solve the deficiencies in the prior art, and the bleed-out accident does not in use take place, and improves the service life of filling pipe end.
The utility model for achieving the above object; be achieved through the following technical solutions: continuous casting steel-making protection cast quick change filling pipe end; comprise parent; offer circular cavity in the parent; the base diameter of cavity is greater than top or top end diameter; cavity inner wall is by the smooth gradually minor diameter position that extends to top or top upwards, bottom maximum gauge place; the zirconium core is installed in the cavity; offer through hole in the middle of the zirconium core; zirconium outer core base diameter is greater than the outer wall upper diameter; the zirconium outer core by bottom maximum outside diameter place from bottom to top external diameter diminish gradually and extend to the upper port of zirconium core, the zirconium outer core adopts bonding pug and parent binding.Zirconium outer core bottom is provided with annular boss.Zirconium core lower end outer diameter D
2With zirconium core upper end outer diameter D
1Be 1:0.4-0.7.
Structure of the present utility model has solved existing filling pipe end fully the production accident that molten steel leaks has in use easily taken place.Through probationary certificate, in all processes that the zirconium core is etched fully, there is not any come-up offset phenomena in the zirconium core, in the filling pipe end time limit in service life, easily produce the leak generation of accident of molten steel when thoroughly having avoided pour steel, the zirconium core is used by normal damage, thereby reduced the production cost of steel-making enterprise etc. the service life of significantly having improved filling pipe end.
Description of drawings
Accompanying drawing 1 is the utility model structural representation; Accompanying drawing 2 is plan structure schematic diagrames of accompanying drawing 1.
The specific embodiment
The contrast drawings and Examples are described further the utility model.
The position of filling pipe end shown in Figure 1 is the user mode placement location, and the upper end is that molten steel inlet, lower end are molten steel outlet, and the filling pipe end bottom surface cooperates above the mouth of a river with following.In filling pipe end parent 1 cavity 5 shown in Figure 1 a zirconium core 3 has been installed, according to instructions for use when the height of filling pipe end is higher, the zirconium core can be installed two joint or more pieces more, the height of zirconium core 3 can be mounted to the top of parent 1 cavity 5, also can be mounted to position as shown in Figure 1, that is: zirconium core height is to cavity 5 tops.The position, cavity 5 upper end of parent 1 is provided with bonding preservative 7.The utility model to the improvement structure that filling pipe end proposes is: at first the shape with the cavity 5 of parent 1 changes, offer circular cavity 5 in the parent 1, the base diameter of cavity 5 is greater than top or top end diameter, cavity 1 inwall is by the smooth gradually minor diameter position that extends to top or top upwards, bottom maximum gauge place, zirconium core 3 is installed in the cavity 1, offer through hole 6 in the middle of the zirconium core 3, zirconium core 3 outer wall base diameters are greater than the outer wall upper diameter, zirconium core 3 outer walls by bottom maximum outside diameter place from bottom to top external diameter diminish gradually and extend to the upper port of zirconium core 3, zirconium core 3 outer walls adopt bonding pug 2 and parent 1 to link.
The filling pipe end of said structure shows at the trial, after bonding pug 2 at high temperature is softened, because it is big that the position lower diameter of zirconium core 3 is installed in parent 1 cavity, and its diameter diminishes from bottom to top gradually, so zirconium core 3 can not occur breaking away from parent 1, zirconium core 3 can not float, and leaking does not appear in molten steel during cast.
The utility model is in order further to increase the safety factor that zirconium core 3 does not break away from parent 1 come-up, in zirconium core 3 outer wall bottoms annular boss 4 is set, this structure can further guarantee, behind the caking property total loss of bonding pug 2, zirconium core 3 still can not break away from parent 1 and upwards float, and can not spill a molten steel.
Claims (3)
1. the quick change filling pipe end is poured into a mould in continuous casting steel-making protection; comprise parent (1); it is characterized in that: offer circular cavity (5) in the parent (1); the base diameter of cavity (5) is greater than top or top end diameter; cavity (1) inwall is by the smooth gradually minor diameter position that extends to top or top upwards, bottom maximum gauge place; zirconium core (3) is installed in the cavity (1); offer through hole (6) in the middle of the zirconium core (3); zirconium core (3) outer wall base diameter is greater than the outer wall upper diameter; zirconium core (3) outer wall by bottom maximum outside diameter place from bottom to top external diameter diminish gradually and extend to the upper port of zirconium core (3), zirconium core (3) outer wall adopts bonding pug (2) and parent (1) to link.
2. continuous casting steel-making protection cast quick change filling pipe end according to claim 1, it is characterized in that: zirconium core (3) outer wall bottom is provided with annular boss (4).
3. continuous casting steel-making protection cast quick change filling pipe end according to claim 1 is characterized in that: zirconium core (3) lower end outer diameter D
2With zirconium core (3) upper end outer diameter D
1Be 1:0.4-0.7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201303516U CN202052934U (en) | 2011-04-28 | 2011-04-28 | Pouring protection quick replacement water supply nozzle for continuous casting steelmaking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201303516U CN202052934U (en) | 2011-04-28 | 2011-04-28 | Pouring protection quick replacement water supply nozzle for continuous casting steelmaking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202052934U true CN202052934U (en) | 2011-11-30 |
Family
ID=45012921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201303516U Expired - Lifetime CN202052934U (en) | 2011-04-28 | 2011-04-28 | Pouring protection quick replacement water supply nozzle for continuous casting steelmaking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202052934U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102189250A (en) * | 2011-05-23 | 2011-09-21 | 浙江省长兴铁狮耐火材料有限公司 | Anti-drop composite metering nozzle |
-
2011
- 2011-04-28 CN CN2011201303516U patent/CN202052934U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102189250A (en) * | 2011-05-23 | 2011-09-21 | 浙江省长兴铁狮耐火材料有限公司 | Anti-drop composite metering nozzle |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111130 |