Steel ladle upper nozzle structure

Abstract

The steel ladle upper nozzle structure comprises an outer opening, an inner opening, a long water pipe and a preheating assembly, the inner opening is connected to the outer side of the outer opening, the long water pipe is arranged on the outer side of the inner opening, the preheating assembly is arranged on the outer side of the long water pipe, and a connecting assembly is connected to the inner side of the bottom of the preheating assembly. The long water pipe and the inner side of the inner opening are both coated with smooth wall paint, the inner opening comprises an inner connecting wall and an outer connecting wall, the inner connecting wall is far away from and fixedly connected with the inner wall of the outer opening, the outer connecting wall is fixedly connected with the outer wall of the outer opening, and the inner connecting wall and the outer connecting wall form a ring block similar to an n shape. The inner wall of the inner connecting wall is coated with smooth wall paint, and the long water pipe comprises a pipe body, a first inclined block and a second inclined block. The steel ladle upper nozzle structure is provided with the long water pipe, molten steel can be guided and prevented from being oxidized and splashed, the long-opening pipe can be automatically preheated, no joint exists on the inner wall, and molten steel can be prevented from permeating into the long-opening pipe.

Description

Technical Field

[0001] This utility model relates to the technical field of ladle inlet structure, specifically a ladle inlet structure. Background Technology

[0002] The ladle is one of the most important containers in the iron and steel metallurgical process. After molten steel comes out of the converter and enters the ladle, it is not only held, but all secondary refining processes are also completed within the ladle. The top nozzle structure is an important component of the ladle system.

[0003] Referring to Chinese Patent Publication No. CN220760996U, with the publication date of the publication date being April 12, 2024, a steel ladle inlet structure is disclosed, including an upper seat brick, a lower seat brick, and an inlet. A through hole is provided through the center of the inlet, and a flared groove is provided on the upper side of the through hole inside the inlet. An installation cavity is provided below the inlet hole formed by splicing the centers of the upper seat brick and the lower seat brick to accommodate the installation of the inlet. The ladle's water inlet structure is staggered from the joint between the ladle's water inlet and the upper seat brick, and from the joint between the upper and lower water inlet seat bricks. The joint between the ladle's water inlet and the upper seat brick is higher than the joint between the upper and lower water inlet seat bricks, creating a height difference at the joint. This design greatly reduces the possibility of steel leakage at the joint. At the same time, the upper part of the through hole of the ladle's water inlet is changed to a flared shape. This is beneficial for the eccentric block of the pulling device to be stuck at the flared position of the through hole, so that the ladle's water inlet and the eccentric block of the pulling device can effectively bear the force. Then, the water inlet is pulled out by the pull rod, which can improve the efficiency of water inlet replacement.

[0004] However, the existing ladle top nozzle structure has seams in the through-hole wall, which can easily allow molten steel to seep in and affect its service life. Therefore, we propose a ladle top nozzle structure to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide a ladle top nozzle structure to solve the problem mentioned in the background art that the existing ladle top nozzle structure has seams in the through hole wall, which makes it easy for molten steel to seep in and affect its service life.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a steel ladle water inlet structure, including an outer inlet, an inner inlet, a long water pipe, and a preheating component. The outer inlet is connected to the inner inlet, the inner inlet is provided with a long water pipe, the long water pipe is provided with a preheating component, and the bottom inner side of the preheating component is connected to a connecting component. The long water pipe and the inner side of the inner inlet are both coated with a smooth wall coating.

[0007] Preferably, the inner opening includes an inner connecting wall and an outer connecting wall, the inner connecting wall is fixedly connected to the inner wall of the outer opening, and the outer connecting wall is fixedly connected to the outer wall of the outer opening. The inner connecting wall and the outer connecting wall form an annular block similar to an "n" shape.

[0008] Preferably, the inner wall of the inner connecting wall is coated with a smooth wall coating.

[0009] Preferably, the long water pipe includes a pipe body, a first inclined block and a second inclined block, wherein the first inclined block is fixedly installed inside the pipe body, and the second inclined block is fixedly connected to the end of the first inclined block away from the pipe body.

[0010] Preferably, the first tilting block and the second tilting block are both located at the top of the outer side of the inner opening, and the tube body is fitted onto the outer side of the inner opening.

[0011] Preferably, the inner walls of the tube body, the first inclined block, and the second inclined block are all coated with a smooth wall coating.

[0012] Preferably, the preheating assembly includes a fixed ring column and an annular heating wire, wherein the annular heating wire is fixedly installed at equal intervals inside the wall of the fixed ring column, and the fixed ring column is sleeved on the outside of the tube body.

[0013] Preferably, the connecting assembly includes a first threaded connection port, a second threaded connection port, a third threaded connection port, and a fixed threaded rod, wherein the first threaded connection port, the second threaded connection port, and the third threaded connection port are respectively disposed in the outer connecting wall, the pipe body, and the fixed ring column wall.

[0014] Preferably, the first threaded connection port, the second threaded connection port, and the third threaded connection port are all threaded with fixed threaded rods.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the ladle top nozzle structure is equipped with a long water pipe, which can guide the molten steel, prevent the molten steel from oxidizing and splashing, automatically preheat the long nozzle, and the inner wall has no seams, which can prevent molten steel from seeping in.

[0016] 1. A long water pipe is installed, which is sleeved on the outside of the inner water inlet. The molten steel flows along its inner wall, thereby guiding the flow, reducing the contact between the molten steel and air, preventing the oxidation of the molten steel, and preventing splashing during the pouring process.

[0017] 2. A preheating component is provided, which includes a fixed ring column and an annular heating wire. The fixed ring column is sleeved on the outside of the long water pipe body, and annular heating wires are fixedly installed at equal intervals inside it, so as to facilitate the preheating of the long water pipe.

[0018] 3. An inner opening is provided, and the inner connecting wall is fixedly connected to the inner wall of the outer opening. The outer connecting wall is fixedly connected to the outer wall of the outer opening. The inner connecting wall and the outer connecting wall form an annular block similar to an "n" shape, so that the inner opening covers the top of the outer opening, making the wall of the water passage seamless and thus preventing molten steel from seeping in.

[0019] 4. A connecting assembly is provided. The first threaded connection port, the second threaded connection port, and the third threaded connection port are respectively located in the outer connecting wall, the pipe body, and the wall of the fixing ring column. Align all the connection ports and screw the fixing threaded rod to the third threaded connection port to fix it. Tighten all the fixing threaded rods to disassemble it.

[0020] 5. A smooth wall coating is provided. The inner connecting wall, pipe body, and inner walls of the first and second inclined blocks are all coated with a smooth wall coating, which prevents molten steel from adhering to the wall and improves the service life of the structure. Attached Figure Description

[0021] Figure 1 This is a frontal sectional view of the present invention.

[0022] Figure 2 This is a front view structural diagram of the present invention;

[0023] Figure 3 This is a schematic diagram of the three-dimensional structure of the tube body of this utility model;

[0024] Figure 4 This is a schematic diagram of the connection structure between the outer opening and the outer connecting wall of this utility model.

[0025] In the diagram: 1. Outer opening; 2. Inner opening; 201. Inner connecting wall; 202. Outer connecting wall; 3. Long water pipe; 301. Pipe body; 302. First inclined block; 303. Second inclined block; 4. Preheating assembly; 401. Fixed ring column; 402. Annular heating wire; 5. Connecting assembly; 501. First threaded connection port; 502. Second threaded connection port; 503. Third threaded connection port; 504. Fixed threaded rod; 6. Smooth wall coating. Detailed Implementation

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Please see Figure 1-Figure 4 The present invention provides the following technical solution:

[0028] Example 1: In existing ladle nozzle structures, molten steel is prone to oxidation and splashing when poured in. To solve this technical problem, this example discloses the following technical content:

[0029] A steel ladle water inlet structure includes an outer inlet 1, an inner inlet 2, a long water pipe 3, and a preheating component 4. The outer inlet 1 is connected to the inner inlet 2, the inner inlet 2 is provided with the long water pipe 3, the long water pipe 3 is provided with the preheating component 4, and the bottom inner side of the preheating component 4 is connected to a connecting component 5. The inner sides of the long water pipe 3 and the inner inlet 2 are both coated with a smooth wall coating 6.

[0030] like Figure 1 and Figure 3 As shown, the long water pipe 3 includes a pipe body 301, a first inclined block 302 and a second inclined block 303. The pipe body 301 is fitted onto the outside of the inner opening 2. The first inclined block 302 is fixedly installed inside the pipe body 301. The second inclined block 303 is fixedly connected to the end of the first inclined block 302 away from the pipe body 301. Molten steel can be poured into the pipe body 301 from the pipe opening. The first inclined block 302 and the second inclined block 303 can make the molten steel flow more smoothly.

[0031] Example 2: The technical content disclosed in this example is a further improvement based on Example 1. The existing ladle inlet structure is not convenient for preheating the pipe body 301. To solve this technical problem, this example discloses the following technical content:

[0032] like Figure 1 As shown, the preheating component 4 includes a fixed ring post 401 and an annular heating wire 402. The annular heating wire 402 is fixedly installed at equal intervals inside the wall of the fixed ring post 401. The fixed ring post 401 is sleeved on the outside of the tube body 301. When the tube body 301 needs to be preheated, the annular heating wire 402 can be turned on by operating the control panel.

[0033] Example 3: Existing ladle nozzle structures have seams on their inner walls, allowing molten steel to easily seep in, thus affecting the nozzle's service life. To solve this technical problem, this example discloses the following technical content:

[0034] like Figure 1 As shown, the inner opening 2 includes an inner connecting wall 201 and an outer connecting wall 202. The inner connecting wall 201 is fixedly connected to the inner wall of the outer opening 1, and the outer connecting wall 202 is fixedly connected to the outer wall of the outer opening 1. The inner connecting wall 201 and the outer connecting wall 202 form an annular block similar to an "n" shape, so that the inner opening 2 covers the top of the outer opening 1, making the inner wall of the formed water passage seamless. The first inclined block 302 and the second inclined block 303 are both set at the top of the outer side of the inner opening 2. The first inclined block 302 and the second inclined block 303 fit against the top of the inner opening 2, and the joint between the second inclined block 303 and the inner opening 2 is a slope, which makes it difficult for molten steel to seep in. The inner connecting wall 201, the pipe body 301, the inner walls of the first inclined block 302 and the second inclined block 303 are all coated with a smooth wall coating 6, which prevents molten steel from adhering to the inner wall and improves the service life of the structure.

[0035] Example 4: The existing ladle inlet structure is inconvenient to disassemble. To solve this technical problem, this example discloses the following technical content:

[0036] like Figure 1-Figure 4 As shown, the connecting component 5 includes a first threaded connection port 501, a second threaded connection port 502, a third threaded connection port 503, and a fixed threaded rod 504. The first threaded connection port 501, the second threaded connection port 502, and the third threaded connection port 503 are respectively located inside the outer connecting wall 202, the pipe body 301, and the fixed ring column 401. The fixed threaded rod 504 is threaded into each of the first threaded connection port 501, the second threaded connection port 502, and the third threaded connection port 503. When disassembling, unscrew all the fixed threaded rods 504. When installing, remove the preheating component 4 and the long water pipe 3 from the outside to the inside. When installing, first put the long water pipe 3 on the outside of the inner opening 2, and align the first threaded connection port 501 and the second threaded connection port 502. Then put on the preheating component 4, align the second threaded connection port 502 and the third threaded connection port 503, and screw the fixed threaded rod 504 into the third threaded connection port 503 to fix it.

[0037] The above completes a series of operations for the ladle inlet structure. Any content not described in detail in this specification is existing technology known to those skilled in the art.

[0038] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0039] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A ladle inlet structure, comprising an outer inlet (1), an inner inlet (2), a long water pipe (3), and a preheating assembly (4), characterized in that: An inner port (2) is connected to the outer side of the outer port (1). A long water pipe (3) is provided on the outer side of the inner port (2). A preheating component (4) is provided on the outer side of the long water pipe (3). A connecting component (5) is connected to the inner side of the bottom of the preheating component (4). The long water pipe (3) and the inner side of the inner port (2) are both coated with a smooth wall coating (6).

2. The ladle top nozzle structure according to claim 1, characterized in that: The inner opening (2) includes an inner connecting wall (201) and an outer connecting wall (202). The inner connecting wall (201) is fixedly connected to the inner wall of the outer opening (1), and the outer connecting wall (202) is fixedly connected to the outer wall of the outer opening (1). The inner connecting wall (201) and the outer connecting wall (202) form an annular block similar to an "n" shape.

3. The ladle top nozzle structure according to claim 2, characterized in that: The inner wall of the inner connecting wall (201) is coated with a smooth wall coating (6).

4. The ladle top nozzle structure according to claim 1, characterized in that: The long water pipe (3) includes a pipe body (301), a first inclined block (302) and a second inclined block (303). The first inclined block (302) is fixedly installed inside the pipe body (301), and the second inclined block (303) is fixedly connected to the end of the first inclined block (302) away from the pipe body (301).

5. The ladle top nozzle structure according to claim 4, characterized in that: The first inclined block (302) and the second inclined block (303) are both located at the top of the outer side of the inner opening (2), and the tube body (301) is fitted onto the outer side of the inner opening (2).

6. The ladle top nozzle structure according to claim 4, characterized in that: The inner walls of the tube (301), the first inclined block (302), and the second inclined block (303) are all coated with a smooth wall coating (6).

7. The ladle top nozzle structure according to claim 1, characterized in that: The preheating component (4) includes a fixed ring column (401) and an annular heating wire (402). The annular heating wire (402) is fixedly installed at equal intervals inside the wall of the fixed ring column (401). The fixed ring column (401) is sleeved on the outside of the tube body (301).

8. The ladle top nozzle structure according to claim 1, characterized in that: The connecting assembly (5) includes a first threaded connection port (501), a second threaded connection port (502), a third threaded connection port (503), and a fixed threaded rod (504). The first threaded connection port (501), the second threaded connection port (502), and the third threaded connection port (503) are respectively disposed inside the outer connecting wall (202), the pipe body (301), and the fixed ring column (401).

9. The ladle top nozzle structure according to claim 8, characterized in that: The first threaded connection port (501), the second threaded connection port (502) and the third threaded connection port (503) are all threaded with fixed threaded rods (504).

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