Ladle nozzle pocket block
By embedding alumina ceramic tile cores in the water inlet and outlet channels of the ladle water outlet bricks, and installing high refractory fibers and rock wool on the outer wall, the problems of high porosity and impervious erosion resistance of existing bricks are solved, and the problem of existing bricks is realized The effect of solidification of the wall and improving the durability of the seat bricks is not easy to occur.
Patent Information
- Application Number
- CN202420378113.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-29
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-02-28
AI Technical Summary
The existing ladle water outlet brick has a high porosity, which can easily lead to solidification of the steel wall, which is not resistant to corrosion and has low durability.
A ladle water outlet brick is designed, and the first alumina ceramic tile core and the second alumina ceramic tile core are embedded in the water inlet and outlet channels, and high refractory fibers and rock wool are provided on the outer wall of the brick core.
It effectively prevents the solidification of the walls in the channel from forming walls, and improves the corrosion resistance and durability of the seat bricks.
Smart Images
Figure CN222429252U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of molten steel production equipment, in particular to a ladle nozzle seat brick. Background Art
[0002] The seat brick is a refractory brick laid at the bottom of the steel ladle to fix the nozzle brick. Its shape is square, so it is also called square brick. The function of the seat brick is to fix the nozzle position; facilitate the removal and installation of the nozzle; support the lower end of the stopper rod during pouring; and ensure that the stopper rod slides along the arc surface to the nozzle to cut off the injection flow after pouring. The seat brick material can be clay, high alumina or unfired high alumina.
[0003] At present, the bricks for the nozzle of the ladle are roughly divided into machine-pressed magnesia-carbon bricks and cast-formed precast blocks. The cast-formed precast blocks have the following disadvantages: 1. The porosity is high, which easily leads to the problem of wall solidification when the molten steel passes through; 2. It is not resistant to corrosion, resulting in reduced durability. Utility Model Content
[0004] The utility model aims to provide a ladle nozzle seat brick to solve the problems raised in the above background technology.
[0005] In order to solve the above-mentioned technical problems, the utility model provides the following technical solutions: a ladle nozzle seat brick, comprising a seat brick body, the bottom end of the seat brick body is provided with a water inlet channel, the top end of the seat brick body is provided with a water outlet channel whose inner wall is connected with the water inlet channel, a first alumina ceramic brick core and a second alumina ceramic brick core are embedded in the water inlet channel and the water outlet channel respectively, and the top end of the first alumina ceramic brick core is fitted with the bottom end of the second alumina ceramic brick core.
[0006] Furthermore, an annular boss is provided at the top end of the first alumina ceramic brick core, and an annular groove for plugging the annular boss is integrally provided at the bottom end of the second alumina ceramic brick core.
[0007] Furthermore, a limiting ring is integrally provided in the middle of the outer wall of the first alumina ceramic brick core and the second alumina ceramic brick core, and the limiting ring is embedded in the seat brick body.
[0008] Furthermore, the bottom end of the first alumina ceramic brick core and the top end of the second alumina ceramic brick core are respectively integrally provided with a first alumina ceramic ring and a second alumina ceramic ring, and the top end of the first alumina ceramic ring and the bottom end of the second alumina ceramic ring are both in contact with the surface of the seat brick body.
[0009] Furthermore, high refractory fibers are arranged on the outer wall of the first alumina ceramic brick core, the outer wall of the second alumina ceramic brick core, the top end of the first alumina ceramic ring, the bottom end of the second alumina ceramic ring and the outer walls of the two limiting rings.
[0010] Furthermore, rock wool is arranged on the outside of the high-refractory fiber.
[0011] The beneficial effect achieved by the utility model is: by embedding the first alumina ceramic brick core and the second alumina ceramic brick core in the water inlet channel and the water outlet channel respectively, the molten steel cannot form a wall-hanging and solidifying phenomenon in the water inlet channel and the water outlet channel. At the same time, the ceramic material of the first alumina ceramic brick core and the second alumina ceramic brick core is more corrosion-resistant than the material of the seat brick body, thereby increasing the durability of the seat brick body during use. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a cross-sectional view of a ladle nozzle seat brick in an embodiment. DETAILED DESCRIPTION
[0013] The utility model is further described below in conjunction with the accompanying drawings.
[0014] like Figure 1 As shown, the utility model discloses a ladle nozzle seat brick, comprising: a seat brick body 1, a water inlet channel 1A is arranged at the bottom end of the seat brick body 1, a water outlet channel 1B whose inner wall is connected to the water inlet channel 1A is arranged at the top end of the seat brick body 1, a first alumina ceramic brick core 2A and a second alumina ceramic brick core 2B are respectively embedded in the water inlet channel 1A and the water outlet channel 1B, and the top end of the first alumina ceramic brick core 2A is fitted with the bottom end of the second alumina ceramic brick core 2B.
[0015] Further, such as Figure 1 As shown, in order to increase the connectivity between the first alumina ceramic brick core and the second alumina ceramic brick core, an annular boss 2A1 is provided at the top of the first alumina ceramic brick core 2A, and an annular groove 2B1 for the annular boss 2A1 to be plugged into is integrally provided at the bottom of the second alumina ceramic brick core 2B.
[0016] Further, such as Figure 1 As shown, in order to increase the connectivity between the brick core and the channel, a limiting ring 3 is integrally provided in the middle of the outer wall of the first alumina ceramic brick core 2A and the second alumina ceramic brick core 2B, and the limiting ring 3 is embedded in the seat brick body 1.
[0017] Further, such as Figure 1 As shown, in order to further prevent the molten steel from contacting the seat brick body, the bottom end of the first alumina ceramic brick core 2A and the top end of the second alumina ceramic brick core 2B are respectively integrally provided with a first alumina ceramic ring 2A2 and a second alumina ceramic ring 2B2, and the top end of the first alumina ceramic ring 2A2 and the bottom end of the second alumina ceramic ring 2B2 are both in contact with the surface of the seat brick body 1.
[0018] Further, such as Figure 1As shown, in order to increase the refractory performance of the seat brick body, high refractory fibers 4 are arranged on the outer wall of the first alumina ceramic brick core 2A, the outer wall of the second alumina ceramic brick core 2B, the top end of the first alumina ceramic ring 2A2, the bottom end of the second alumina ceramic ring 2B2 and the outer walls of the two limiting rings 3.
[0019] Further, such as Figure 1 As shown, in order to increase the thermal insulation between the brick core and the seat brick body, rock wool 5 is arranged outside the high refractory fiber 4.
[0020] Based on the above structure, Figure 1 As shown, during use, when molten steel passes through the water inlet channel 1A and the water outlet channel 1B, the arrangement of the first alumina ceramic brick core 2A and the second alumina ceramic brick core 2B can prevent the molten steel from solidifying on the wall in the water inlet channel 1A and the water outlet channel 1B. At the same time, the ceramic material of the first alumina ceramic brick core 2A and the second alumina ceramic brick core 2B is more corrosion-resistant than the material of the seat brick body 1, thereby increasing the durability of the seat brick body 1 during use.
[0021] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.
Claims
1. A ladle nozzle seat brick, comprising a seat brick body (1), wherein the bottom end of the seat brick body (1) is provided with a water inlet channel (1A), and the top end of the seat brick body (1) is provided with a water outlet channel (1B) whose inner wall is connected to the water inlet channel (1A), characterized in that: A first alumina ceramic brick core (2A) and a second alumina ceramic brick core (2B) are respectively embedded in the water inlet channel (1A) and the water outlet channel (1B), and the top end of the first alumina ceramic brick core (2A) is fitted with the bottom end of the second alumina ceramic brick core (2B).
2. A ladle nozzle seat brick according to claim 1, characterized in that: The top end of the first alumina ceramic brick core (2A) is provided with an annular boss (2A1), and the bottom end of the second alumina ceramic brick core (2B) is integrally provided with an annular groove (2B1) for plugging the annular boss (2A1).
3. A ladle nozzle seat brick according to claim 2, characterized in that: A limiting ring (3) is integrally provided in the middle of the outer wall of the first alumina ceramic brick core (2A) and the second alumina ceramic brick core (2B), and the limiting ring (3) is embedded in the base brick body (1).
4. A ladle nozzle seat brick according to claim 2, characterized in that: The bottom end of the first alumina ceramic brick core (2A) and the top end of the second alumina ceramic brick core (2B) are respectively integrally provided with a first alumina ceramic ring (2A2) and a second alumina ceramic ring (2B2); the top end of the first alumina ceramic ring (2A2) and the bottom end of the second alumina ceramic ring (2B2) are both in contact with the surface of the base brick body (1).
5. A ladle nozzle seat brick according to claim 4, characterized in that: Highly refractory fibers (4) are provided on the outer wall of the first alumina ceramic brick core (2A), the outer wall of the second alumina ceramic brick core (2B), the top end of the first alumina ceramic ring (2A2), the bottom end of the second alumina ceramic ring (2B2) and the outer walls of the two limiting rings (3).
6. A ladle nozzle seat brick according to claim 5, characterized in that: Rock wool (5) is arranged outside the high-refractory fiber (4).