Novel ladle nozzle pocket block

Abstract

The utility model discloses a novel ladle nozzle seating brick, which relates to the technical field of ladle refractory materials and comprises a seating brick body, a nozzle body is embedded in the seating brick body, a support device is embedded in the lower half part of the nozzle body and comprises an outer support plate and an inner support plate, a connecting plate is arranged between the outer supporting plate and the inner supporting plate, the outer supporting plate is flush with the outer side of the water gap body, the inner supporting plate is flush with the inner side of the water gap body, the connecting plate penetrates through the water gap body to be fixedly connected with the inner supporting plate and the outer supporting plate, and connecting rings are arranged on the upper side and the lower side of the inner supporting plate. The steel ladle nozzle pocket block has the advantages that the design is reasonable, the anti-scouring performance is good, the diameter expansion phenomenon can be effectively prevented, the structural stability of the nozzle body is improved, and the service life of the steel ladle nozzle pocket block is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of ladle refractory materials, in particular to a new type of ladle nozzle seat brick. Background Art

[0002] The ladle nozzle brick is an indispensable key component in the steel smelting process. Its performance directly affects the quality of molten steel and production efficiency. At present, most ladle nozzle bricks are integrally casted with corundum castables. This material is widely used in this field due to its excellent fire resistance and high temperature resistance. However, despite these advantages, in actual use, the nozzle bricks made of corundum castables still face some challenges and problems;

[0003] Firstly, poor resistance to erosion by molten steel is a major drawback of corundum castable nozzle seat bricks; secondly, during the smelting process, due to the effects of factors such as molten steel erosion and temperature changes, the bell-mouth part of the nozzle seat brick is prone to expansion, which will lead to a significant increase in the consumption of drainage sand and thus increase production costs; therefore, it is very necessary to provide a new type of ladle nozzle seat brick with a reasonable design, good erosion resistance, long service life and avoidance of bell-mouth expansion. Summary of the invention

[0004] The utility model aims to overcome the deficiencies of the prior art and to provide a new type of ladle nozzle seat brick which has reasonable design, good anti-scouring performance, long service life and avoids the phenomenon of bell mouth diameter expansion.

[0005] The purpose of the utility model is achieved as follows: a new type of ladle nozzle seat brick, which includes a seat brick body, a nozzle body is embedded in the seat brick body, a supporting device is embedded in the lower half of the nozzle body, the supporting device includes an outer supporting plate and an inner supporting plate, a connecting plate is arranged between the outer supporting plate and the inner supporting plate, the outer supporting plate is flush with the outer side of the nozzle body, the inner supporting plate is flush with the inner side of the nozzle body, the connecting plate passes through the nozzle body and is fixedly connected to the inner supporting plate and the outer supporting plate, connecting rings are arranged on the upper and lower sides of the inner support plate, and the connecting rings are fixedly connected to the inner side wall of the nozzle body.

[0006] Preferably, a reinforcing plate is provided at the external connection between the variable diameter area and the constant diameter area of ​​the nozzle body.

[0007] Preferably, the reinforcing plate is a circular structure as a whole, and a cross-section of the reinforcing plate is a triangular structure.

[0008] Preferably, both ends of the connecting plate of the supporting device are vertically connected to the outer supporting plate and the inner supporting plate.

[0009] Preferably, the support device is a circular structure, and the cross-section of the support device is a horizontal I-shaped structure.

[0010] Preferably, the supporting device overlaps with the center line of the nozzle body.

[0011] Preferably, the supporting device is made of zirconium oxide.

[0012] Preferably, the connecting ring is a circular structure with a semicircular cross-section.

[0013] The beneficial effects of the utility model are as follows:

[0014] 1. The utility model adopts a support device, and the design of an outer support plate and an inner support plate increases the stability of the inside of the nozzle, and can effectively resist the erosion caused by molten steel scouring. When the nozzle body is scoured by molten steel, it can disperse the impact force and reduce local wear. The cross-section is a horizontal I-shaped structure, which can withstand higher temperatures and pressures, reduce the risk of deformation or rupture under high temperature and high pressure conditions, further prevent the occurrence of diameter expansion, and can significantly extend the service life of the nozzle body;

[0015] 2. The utility model adopts a reinforcing plate provided at the outer connection between the variable diameter area and the constant diameter area of ​​the nozzle body. At the connection between the variable diameter area and the constant diameter area, stress concentration is easily formed due to the change in cross-sectional size. The design of the reinforcing plate helps to resist the stress changes caused by factors such as the flow of molten steel and temperature changes, thereby reducing the risk of diameter expansion, and can significantly enhance the structural stability of the nozzle body at the connection between the variable diameter area and the constant diameter area, thereby improving the service life of the ladle nozzle seat brick.

[0016] In general, the utility model has reasonable design and good anti-scouring performance, can effectively prevent the occurrence of diameter expansion, improves the structural stability of the nozzle body, and prolongs the service life of the ladle nozzle seat brick. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a structural schematic diagram of a new type of ladle nozzle seat brick.

[0018] Figure 2 The utility model is a structural schematic diagram of a novel ladle nozzle seat brick reinforcement plate.

[0019] Figure 3 The utility model is a three-dimensional schematic diagram of a novel ladle nozzle seat brick supporting device.

[0020] Figure 4 The utility model is a cross-sectional schematic diagram of a novel ladle nozzle seat brick supporting device.

[0021] In the figure: 1. Base brick body 2. Water nozzle body 3. Support device 301. Outer support plate 302. Inner support plate 303. Connecting plate 4. Connecting ring 5. Reinforcement plate. DETAILED DESCRIPTION

[0022] 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.

[0023] like Figure 1-4 As shown, a new type of ladle nozzle seat brick comprises a seat brick body 1, a nozzle body 2 is embedded in the seat brick body 1, a supporting device 3 is embedded in the lower half of the nozzle body 2, the supporting device 3 comprises an outer supporting plate 301 and an inner supporting plate 302, a connecting plate 303 is arranged between the outer supporting plate 301 and the inner supporting plate 302, the outer supporting plate 301 is flush with the outer side of the nozzle body 2, the inner supporting plate 302 is flush with the inner side of the nozzle body 2, the connecting plate 303 passes through the nozzle body 2 and is fixedly connected to the inner supporting plate 302 and the outer supporting plate 301, and connecting rings 4 are arranged on the upper and lower sides of the inner supporting plate 302, and the connecting ring 4 is fixedly connected to the inner side wall of the nozzle body 2.

[0024] Among them, a reinforcing plate 5 is provided at the outer connection between the variable diameter area and the constant diameter area of ​​the nozzle body 2. The reinforcing plate 5 is a circular structure as a whole, and the cross-section of the reinforcing plate 5 is a triangular structure.

[0025] A reinforcing plate 5 is provided at the external connection between the variable diameter area and the constant diameter area of ​​the nozzle body 2. At the connection between the variable diameter area and the constant diameter area, stress concentration is easily formed due to the change in cross-sectional size. The design of the reinforcing plate 5 helps to resist stress changes caused by factors such as molten steel flow and temperature changes, thereby reducing the risk of diameter expansion, and can significantly enhance the structural stability of the nozzle body 2 at the connection between the variable diameter area and the constant diameter area, thereby improving the service life of the ladle nozzle seat bricks.

[0026] Among them, both ends of the connecting plate 303 of the supporting device 3 are vertically connected to the outer supporting plate 301 and the inner supporting plate 302. The purpose of this design is to further improve the structural stability of the supporting device 3, further improve the structural stability of the water outlet body 2, and reduce the risk of diameter expansion.

[0027] The supporting device 3 is a circular structure, and the cross section of the supporting device 3 is a horizontal I-shaped structure.

[0028] The support device 3, the design of the outer support plate 301 and the inner support plate 302 increase the stability of the inside of the nozzle and can effectively resist the erosion caused by the erosion of molten steel. When the nozzle body 2 is flushed by molten steel, it can disperse the impact force and reduce local wear. The cross-section is a horizontal I-shaped structure, which can withstand higher temperatures and pressures, reduce the risk of deformation or rupture under high temperature and high pressure conditions, further prevent the occurrence of diameter expansion, and can significantly extend the service life of the nozzle body 2.

[0029] The support device 3 overlaps with the center line of the nozzle body 2. The purpose of this design is to help evenly distribute the impact force from the molten steel to the nozzle body 2 and the support device 3, and effectively avoid the occurrence of diameter expansion.

[0030] The supporting device 3 is made of zirconium oxide. The purpose of this design is to increase the stability inside the nozzle and effectively resist the erosion caused by molten steel.

[0031] Among them, the connecting ring 4 is a circular structure with a semicircular cross-section. The purpose of this design is that the semicircular structural design can effectively disperse these stresses, avoid local deformation or diameter expansion caused by stress concentration, and significantly improve the impact resistance and durability of the nozzle body 2 by optimizing the stress distribution.

[0032] The working principle of the utility model is as follows:

[0033] The utility model evenly applies fire mud on the surface of the upper nozzle of the nozzle body 2 and then places it into the seat brick body 1. The nozzle body 2 is rotated left and right in turn and pushed downward to fill the gap between the nozzle body 2 and the seat brick body 1 tightly. During use, the molten steel passes through the variable diameter area of ​​the nozzle body 2. When the molten steel hits the variable diameter area, the reinforcing block can enhance the structural stability of the variable diameter area, avoiding the expansion of the diameter due to looseness at the connection between the variable diameter area and the constant diameter area. When the molten steel flows downward to the constant diameter area of ​​the nozzle body 2, the upper and lower connecting rings 4 can effectively disperse the impact force from the molten steel, avoiding local deformation or expansion caused by stress concentration. The supporting device 3 can effectively resist the erosion caused by the erosion of the molten steel, and can withstand higher temperatures and pressures, reducing the risk of deformation or rupture under high temperature and high pressure conditions, and further preventing the occurrence of expansion.

[0034] In general, the utility model has reasonable design and good anti-scouring performance, can effectively prevent the occurrence of diameter expansion, improves the structural stability of the nozzle body, and prolongs the service life of the ladle nozzle seat brick.

[0035] 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 new type of ladle nozzle seat brick, comprising a seat brick body (1), characterized in that: The base brick body (1) is embedded with a nozzle body (2), and a supporting device (3) is embedded in the lower half of the nozzle body (2). The supporting device (3) comprises an outer supporting plate (301) and an inner supporting plate (302). A connecting plate (303) is arranged between the outer supporting plate (301) and the inner supporting plate (302). The outer supporting plate (301) is flush with the outer side of the nozzle body (2), and the inner supporting plate (302) is flush with the inner side of the nozzle body (2). The connecting plate (303) passes through the nozzle body (2) and is fixedly connected to the inner supporting plate (302) and the outer supporting plate (301). The upper and lower sides of the inner supporting plate (302) are both provided with connecting rings (4), and the connecting ring (4) is fixedly connected to the inner side wall of the nozzle body (2).

2. A new type of ladle nozzle seat brick according to claim 1, characterized in that: A reinforcing plate (5) is provided at the outer connection between the variable diameter area and the constant diameter area of ​​the nozzle body (2).

3. A new type of ladle nozzle seat brick according to claim 2, characterized in that: The reinforcing plate (5) is a circular structure as a whole, and the cross-section of the reinforcing plate (5) is a triangular structure.

4. The new type of ladle nozzle seat brick according to claim 1 is characterized in that: Both ends of the connecting plate (303) of the supporting device (3) are vertically connected to the outer supporting plate (301) and the inner supporting plate (302).

5. A new type of ladle nozzle seat brick according to claim 4, characterized in that: The support device (3) is a circular structure, and the cross section of the support device (3) is a horizontal I-shaped structure.

6. A new type of ladle nozzle seat brick according to claim 5, characterized in that: The supporting device (3) overlaps with the center line of the nozzle body (2).

7. A new type of ladle nozzle seat brick according to claim 6, characterized in that: The supporting device (3) is made of zirconium oxide.

8. The new type of ladle nozzle seat brick according to claim 1, characterized in that: The connecting ring (4) is a circular structure with a semicircular cross section.

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