Tundish upper nozzle with anti-seepage ring
By setting up a double anti-seepage ring structure in the variable diameter and constant diameter area of the tundra water outlet, the problem of steel seepage is prone to occur during use, and the effect of effectively preventing steel seepage is achieved, extending the service life and improving safety guarantees.
Patent Information
- Application Number
- CN202421357796.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-14
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-06-14
AI Technical Summary
The existing tundra water outlet is prone to steel seepage problems during use, resulting in shortening of service life and safety hazards.
A tundra water outlet with anti-seepage ring is designed. By setting up an upper anti-seepage ring, an anti-seepage groove and a lower anti-seepage ring in the variable diameter area and the constant diameter area of the water outlet body, a double anti-seepage structure is formed to prevent liquid steel leakage.
It effectively prevents the occurrence of steel seepage problems, extends the service life of the tundra, and improves the safety guarantee of the production process.
Smart Images
Figure CN222817955U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of tundish refractory materials, and particularly relates to a tundish upper water inlet with an anti-seepage ring. Background Art
[0002] The water inlet of the tundish is an important and key refractory functional material in the continuous casting steelmaking process. Its main function is to control the flow of molten steel, adjust the temperature, and remove impurities in the continuous casting smelting process. However, during use, due to the loose fit between the gap between the water inlet and the seat brick, steel seepage problems often occur. Although the gap between the water inlet and the seat brick is filled with fire clay and other joint materials, it is still difficult to avoid the molten steel in the tundish from seeping downward along the gap between the water inlet and the seat brick, seriously affecting the service life of the tundish and even causing safety accidents. Therefore, it is very necessary to provide a tundish water inlet with a reasonable design, good anti-seepage steel effect, long service life and guaranteed safe production. Summary of the invention
[0003] The utility model aims to overcome the deficiencies of the prior art and to provide a tundish upper water inlet with an anti-seepage ring which has a reasonable design, good anti-seepage steel effect, long service life and ensures safe production.
[0004] The purpose of the utility model is achieved as follows: an upper water inlet of a tundish with an anti-seepage ring, which comprises a seat brick, a circular hole is opened in the middle of the seat brick, a water inlet body is arranged in the circular hole, a zirconium bowl is arranged on the top of the water inlet body, and anti-seepage rings are respectively arranged in the variable diameter area at the upper part and the constant diameter area at the lower part of the water inlet body, and the anti-seepage rings surround the water inlet body in one circle, and the anti-seepage rings comprise an upper anti-seepage ring, an anti-seepage groove and a lower anti-seepage ring, and the anti-seepage groove is arranged at the middle connection between the outer ends of the upper anti-seepage ring and the lower anti-seepage ring.
[0005] Preferably, the top view shape of the seat brick is circular or square.
[0006] Preferably, the outer side of the nozzle body matches the inner wall shape of the circular hole on the seat brick.
[0007] Preferably, the lower surface of the upper anti-seepage ring and the upper surface of the lower anti-seepage ring are both planes.
[0008] Preferably, the upper surface of the upper anti-seepage ring and the lower surface of the lower anti-seepage ring are both arc-shaped convex surfaces.
[0009] Preferably, the arc radius of the convex surface is 0.8-1.2 mm.
[0010] Preferably, the height of the anti-seepage groove is 1 to 1.4 mm.
[0011] The beneficial effects of the utility model are as follows:
[0012] 1. The utility model adopts an anti-seepage ring. The upper anti-seepage ring can reduce the gap between the seepage steel and delay the downward movement of the seepage steel. A hysteresis cavity is formed in the anti-seepage groove, which can hinder the downward movement of the seepage steel again. At the same time, the buffer area formed by the hysteresis cavity can maintain the structural stability of the anti-seepage ring. The lower anti-seepage ring can reduce the gap between the seepage steel again and further prevent the seepage steel from spreading downward. Two anti-seepage rings are respectively arranged in the variable diameter area and the constant diameter area of the nozzle body. Under the dual effect of the two anti-seepage rings, the occurrence of the steel seepage problem can be effectively prevented, and the safety guarantee of the production process is increased while supporting the tundish to improve its service life.
[0013] 2. The utility model adopts an arc-shaped convex surface on the anti-seepage ring. The arc-shaped convex surface can fit with the surrounding seat bricks more effectively, and at the same time can provide a smooth transition, guide the flow of molten steel, make it more stable and orderly, reduce the turbulence and impact of molten steel when passing through, and further reduce the occurrence of steel seepage problems.
[0014] In general, the utility model has a reasonable design, can effectively prevent the occurrence of steel seepage problems, prolongs the service life of the tundish, and increases safety during the production process. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 The utility model is a structural schematic diagram of a tundish upper water inlet with an anti-seepage ring.
[0016] Figure 2 The utility model is a tundish upper water inlet with an anti-seepage ring Figure 1 A partial enlarged view of point A in the middle.
[0017] Figure 3 The utility model is a structural schematic diagram of a tundish upper water inlet seat brick with an anti-seepage ring.
[0018] In the figure: 1. seat brick 101. round hole 2. zirconium bowl 3. anti-seepage ring 301. upper anti-seepage ring 302. lower anti-seepage ring 303. anti-seepage groove 304. convex surface 4. nozzle body. DETAILED DESCRIPTION
[0019] The following are specific embodiments of the present invention, and the technical solution of the present invention is further described in conjunction with the accompanying drawings, but the present invention is not limited to these embodiments.
[0020] like Figure 1-3As shown, a tundish upper water inlet with an anti-seepage ring comprises a seat brick 1, a circular hole 101 is opened in the middle of the seat brick 1, a water inlet body 4 is arranged in the circular hole 101, a zirconium bowl 2 is arranged on the top of the water inlet body 4, anti-seepage rings 3 are respectively arranged in the variable diameter area at the upper part and the constant diameter area at the lower part of the water inlet body 4, the anti-seepage rings 3 are all around the water inlet body 4, the anti-seepage rings 3 comprise an upper anti-seepage ring 301, an anti-seepage groove 303 and a lower anti-seepage ring 302, and the anti-seepage groove 303 is arranged at the middle connection between the outer ends of the upper anti-seepage ring 301 and the lower anti-seepage ring 302.
[0021] An anti-seepage ring 3 is set in the variable diameter area of the nozzle body 4. Due to the changes in speed and flow direction of the molten steel in the variable diameter area, the flow of the molten steel can be more accurately controlled to reduce the risk of leakage. At the same time, in the variable diameter area, which is an important position where force is easily concentrated, the anti-seepage ring 3 can enhance the overall structural strength of the nozzle body 4, which helps to improve the pressure resistance and service life of the nozzle body 4.
[0022] The top view shape of the seat brick 1 is circular or square, and the outer side of the nozzle body 4 matches the inner wall shape of the circular hole 101 on the seat brick 1 .
[0023] The nozzle body 4 is inserted into the circular hole 101 of the base brick 1 and fits exactly with the inner wall of the circular hole 101, which can reduce the gap between the nozzle body 4 and the base brick 1, further avoid the occurrence of steel seepage problems, and increase safety during the production process.
[0024] The lower surface of the upper anti-seepage ring 301 and the upper surface of the lower anti-seepage ring 302 are both planes, and the upper surface of the upper anti-seepage ring 301 and the lower surface of the lower anti-seepage ring 302 are both arc-shaped convex surfaces 304 .
[0025] The lower surface of the upper anti-seepage ring 301 and the upper surface of the lower anti-seepage ring 302 are both planes, and an anti-seepage groove 303 is formed in the middle of the planes. The anti-seepage groove 303 forms a buffered hysteresis cavity, which can prevent the leaking molten steel from moving downward. The upper surface of the upper anti-seepage ring 301 and the lower surface of the lower anti-seepage ring 302 are both arc-shaped convex surfaces 304. The setting of the arc-shaped convex surface 304 can more effectively fit with the surrounding seat bricks 1, and at the same time can provide a smooth transition, guide the flow of molten steel, make it more stable and orderly, reduce the turbulence and impact of the molten steel when passing through, and further reduce the occurrence of steel seepage problems.
[0026] The arc radius of the convex surface 304 is 0.8-1.2 mm, and the height of the anti-seepage groove 303 is 1-1.4 mm.
[0027] This structural design can ensure that the molten steel is properly guided and restrained when passing through, avoiding excessive splashing or leakage of the molten steel. At the same time, it can provide a certain buffering effect when subjected to external pressure or impact, protecting the structural safety of the anti-seepage ring 3 and the entire nozzle body 4.
[0028] The working principle of the utility model is as follows:
[0029] The utility model evenly applies fire mud on the surface of the upper nozzle of the nozzle body 4 and then places it into the hole of the seat brick 1. The nozzle body 4 rotates left and right in turn and pushes downward to fill the gap between the nozzle body 4 and the seat brick 1. During use, the upper anti-seepage ring 301 reduces the steel seepage gap and has the effect of delaying the downward movement of steel seepage; a hysteresis cavity is formed in the anti-seepage groove 303 to hinder the downward movement of steel seepage again; the lower anti-seepage ring 302 reduces the steel seepage gap again and further prevents the downward diffusion of steel seepage. Under the dual effect of the two anti-seepage rings 3, the occurrence of steel seepage can be effectively prevented, and while supporting the tundish to increase its life, the safety of the production process is increased.
[0030] In general, the utility model has a reasonable design, can effectively prevent the occurrence of steel seepage problems, prolongs the service life of the tundish, and increases safety during the production process.
[0031] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A tundish upper nozzle with an anti-seepage ring, comprising a seat brick (1), characterized in that: A circular hole (101) is provided in the middle of the base brick (1), a nozzle body (4) is arranged in the circular hole (101), a zirconium bowl (2) is arranged on the top of the nozzle body (4), anti-seepage rings (3) are respectively arranged in the variable diameter area at the upper part and the constant diameter area at the lower part of the nozzle body (4), the anti-seepage rings (3) surround the nozzle body (4), the anti-seepage rings (3) include an upper anti-seepage ring (301), an anti-seepage groove (303) and a lower anti-seepage ring (302), and the anti-seepage groove (303) is arranged at the middle connection between the outer ends of the upper anti-seepage ring (301) and the lower anti-seepage ring (302).
2. The tundish upper water inlet with an anti-seepage ring according to claim 1, characterized in that: The top view shape of the seat brick (1) is circular or square.
3. The tundish upper water inlet with an anti-seepage ring according to claim 1, characterized in that: The outer side of the nozzle body (4) matches the inner wall shape of the circular hole (101) on the base brick (1).
4. The tundish upper water inlet with an anti-seepage ring according to claim 1, characterized in that: The lower surface of the upper anti-seepage ring (301) and the upper surface of the lower anti-seepage ring (302) are both planes.
5. The tundish upper water inlet with an anti-seepage ring according to claim 4, characterized in that: The upper surface of the upper anti-seepage ring (301) and the lower surface of the lower anti-seepage ring (302) are both arc-shaped convex surfaces (304).
6. The tundish upper water inlet with an anti-seepage ring according to claim 5, characterized in that: The arc radius of the convex surface (304) is 0.8-1.2 mm.
7. The tundish upper water inlet with an anti-seepage ring according to claim 6, characterized in that: The height of the anti-seepage groove (303) is 1 to 1.4 mm.