CN211915492U - Immersion type water gap with long service life and high thermal shock resistance - Google Patents
Immersion type water gap with long service life and high thermal shock resistance Download PDFInfo
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- CN211915492U CN211915492U CN202020332863.XU CN202020332863U CN211915492U CN 211915492 U CN211915492 U CN 211915492U CN 202020332863 U CN202020332863 U CN 202020332863U CN 211915492 U CN211915492 U CN 211915492U
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- thermal shock
- shock resistance
- composite bed
- high thermal
- antiscour
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Abstract
The utility model discloses a long-life high thermal shock resistance immersion nozzle, include: bowl portion, body, antiscour inside lining, slag line and composite bed, the body divide into first body and second body, first body with be equipped with between the second body the slag line with the composite bed, the slag line cover is located the composite bed outside, first body with the inner wall of composite bed flushes and both all overlap and locate the antiscour inside lining outside, bowl portion is located first body with the tip of antiscour inside lining, second body lateral wall is equipped with the side opening. The beneficial effects of the utility model are that through being equipped with the good composite bed of thermal shock resistance performance between slag line and the antiscour inside lining, can make the immersion nozzle last stably in the use of continuous casting workshop section, it is strong to resist the thermal shock ability, can avoid appearing the condition of splitting by explosion at the steel in-process immersion nozzle of watering to improve immersion nozzle's use.
Description
Technical Field
The utility model relates to a steel continuous casting technical field, more specifically the utility model relates to a long-life high thermal shock resistance immersion nozzle that says so.
Background
When the submerged nozzle is used in a continuous casting section, the submerged nozzle mainly plays the roles of guiding flow and stabilizing a flow field, and the molten steel is guided into a crystallizer from a tundish. The zirconia immersion nozzle used at present has poor thermal shock resistance, can be used after being baked before being used, and sometimes cracks or even cracks are generated in the immersion nozzle just in the immersion nozzle when casting is just started due to the change or fluctuation of baking conditions of a steel plant, so that the whole steel casting rhythm and the casting blank quality are adversely affected.
Therefore, how to make the submerged nozzle continuously stable in the use of the continuous casting workshop section, the thermal shock resistance is strong, the condition that the submerged nozzle is cracked in the steel pouring process can be avoided, and the technical problem that the service life of the submerged nozzle is prolonged is needed to be solved by the technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a long-life high thermal shock resistance immersion nozzle, include: bowl portion, body, antiscour inside lining, slag line and composite bed, the body divide into first body and second body, first body with be equipped with between the second body the slag line with the composite bed, the slag line cover is located the composite bed outside, first body with the inner wall of composite bed flushes and both all overlap and locate the antiscour inside lining outside, bowl portion is located first body with the tip of antiscour inside lining, be equipped with the side opening on the lateral wall of second body.
Further, the inner diameter of the second body is equal to the inner diameter of the anti-scouring body.
Further, a groove for preventing the mold flux from being involved is formed in the bottom of the second body.
Further, the side hole is equipped with two at least and the equal downward sloping in outside, the side hole array distribute in on the lateral wall of second body.
Further, the bowl portion is horn-shaped, and the open direction deviates from the first body.
Further, the thickness of the composite layer is 1-10 mm.
Can know via foretell technical scheme, compare with prior art, the utility model discloses a long-life high thermal shock resistance immersion nozzle has following beneficial effect:
through being equipped with the good composite bed of thermal shock resistance performance between slag line and anti-scouring lining, can make immersion nozzle last stably in the continuous casting workshop section uses, it is strong to resist thermal shock ability, can avoid appearing the fried condition of splitting at the steel in-process immersion nozzle to improve immersion nozzle's life.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a long-life high thermal shock resistance submerged nozzle provided by the present invention;
3 FIG. 3 2 3 is 3 a 3 schematic 3 sectional 3 view 3 taken 3 along 3 line 3 A 3- 3 A 3 of 3 the 3 present 3 invention 3; 3
Fig. 3 is a schematic B-B cross-sectional view provided by the present invention.
In the figure: 1 is a bowl part; 2 is a body; 21 is a first body; 22 is a second body; 3 is an anti-scouring lining; 4 is a slag line; 5 is a composite layer; 6 is a side hole; and 7 is a groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the utility model discloses a long-life high thermal shock resistance immersion nozzle, include: bowl portion 1, body 2, antiscour inside lining 3, slag line 4 and composite bed 5, body 2 divide into first body 21 and second body 22, be equipped with slag line 4 and composite bed 5 between first body 21 and the second body 22, the 5 outsides in composite bed are located to 4 covers of slag line, composite bed 5 is higher than slag line 4, and be less than antiscour inside lining 3, first body 21 flushes and both all overlap the 3 outsides in antiscour inside lining with the inner wall of composite bed 5, the tip of first body 21 and antiscour inside lining 3 is located to bowl portion 1, be equipped with side opening 6 on the lateral wall of second body 22.
In this embodiment, the composite layer 5 is mainly made of fused silica as a main raw material, and the content of the fused silica in the composite layer 5 is not less than 45%, wherein the fused silica slurry can be used after being granulated in a granulator or a mixing mill by adding a binder.
The composite layer 5 is firstly formed at the time of 5-50 Mpa by adopting a static pressure machine, then the mud material at other parts of the submerged nozzle is sleeved outside the anti-scouring lining 3 before feeding into the mould, and is pressed and formed together with the submerged nozzle at the isostatic pressure of 30-130 Mpa. In other embodiments, the composite layer 5 can also be sleeved with mud in other parts of the submerged nozzle and then placed into a mold for isostatic pressing.
In particular, the inner diameter of the second body 22 is equal to the inner diameter of the erosion resistant liner 3.
Specifically, the bottom of the second body 22 is provided with a groove 7 for preventing the mold flux from being involved.
Specifically, the side holes 6 are at least provided with two side holes, the outer sides of the side holes are all inclined downwards, and the side holes 6 are distributed on the side wall of the second body 22 in an array mode.
Specifically, the bowl portion 1 is of a horn shape, and the opening direction deviates from the first body 21.
Specifically, the thickness of the composite layer 5 is 1 to 10mm, preferably 5mm in the present embodiment.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. The utility model provides a long-life high thermal shock resistance immersion nozzle which characterized in that includes: bowl portion (1), body (2), antiscour inside lining (3), slag line (4) and composite bed (5), the body divide into first body (21) and second body (22), first body (21) with be equipped with between second body (22) slag line (4) with composite bed (5), slag line (4) cover is located the composite bed (5) outside, first body (21) with the inner wall of composite bed (5) flushes and both all overlap and locate the antiscour inside lining (3) outside, bowl portion (1) is located first body (21) with the tip of antiscour inside lining (3), be equipped with side opening (6) on the lateral wall of second body (22).
2. The long life high thermal shock resistance submerged nozzle of claim 1, characterized in that the inner diameter of the second body (22) is equal to the inner diameter of the erosion resistant lining (3).
3. The long-life high thermal shock resistance submerged nozzle according to claim 1, characterized in that the bottom of said second body (22) is provided with a groove (7) for preventing entrainment of mold flux.
4. The submerged entry nozzle with long service life and high thermal shock resistance as claimed in claim 1, characterized in that said lateral holes (6) are provided in at least two and are inclined downwards on the outside, said array of lateral holes (6) being distributed on the lateral wall of said second body (22).
5. The long-life high thermal shock resistance submerged nozzle of claim 1, characterized in that the bowl (1) is trumpet-shaped and opens away from the first body (21).
6. The submerged entry nozzle with long service life and high thermal shock resistance as claimed in claim 1, characterized in that the thickness of said composite layer (5) is 1-10 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020332863.XU CN211915492U (en) | 2020-03-17 | 2020-03-17 | Immersion type water gap with long service life and high thermal shock resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020332863.XU CN211915492U (en) | 2020-03-17 | 2020-03-17 | Immersion type water gap with long service life and high thermal shock resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211915492U true CN211915492U (en) | 2020-11-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020332863.XU Active CN211915492U (en) | 2020-03-17 | 2020-03-17 | Immersion type water gap with long service life and high thermal shock resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211915492U (en) |
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2020
- 2020-03-17 CN CN202020332863.XU patent/CN211915492U/en active Active
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