Modularized splicing type 88 castable open-hearth launder device

By using modular, splicing quick-connect components, the problem of traditional integral open-hearth furnace flutes being easily damaged in high-temperature environments is solved. This enables rapid installation and disassembly of the flute body, reducing maintenance costs and improving the economy and service life of the equipment.

CN224136382UActive Publication Date: 2026-04-17YIXING JINJUN REFRACTORY CHARGE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YIXING JINJUN REFRACTORY CHARGE CO LTD
Filing Date
2025-05-26
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Traditional integral open-hearth furnace flutes are easily damaged in high-temperature environments, resulting in high replacement costs and poor economic efficiency. Furthermore, partial damage requires the replacement of the entire flue.

Method used

It adopts a modular splicing design, and uses springs and bevel gear mechanisms to achieve quick connection and disassembly of the flow channel body through quick connection components of the embedding and insertion parts.

Benefits of technology

It enables rapid installation and disassembly of the flow channel body, reduces maintenance costs, and improves the economy and service life of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a modular splicing type 88 castable open-hearth launder device, which belongs to the technical field of open-hearth launder, and comprises a first open-hearth launder body and a second open-hearth launder body, and a splicing component for quickly connecting the first open-hearth launder body and the second open-hearth launder body is arranged between the first open-hearth launder body and the second open-hearth launder body. The splicing assembly comprises an embedding part arranged on one side of the first open-hearth launder body and an embedding part arranged on one side of the second open-hearth launder body, and the splicing assembly has the effects that the first open-hearth launder body and the second open-hearth launder body can be quickly connected and inserted to form fixation by arranging the embedding part, the inserting part and the moving assembly; and the rotating block is rotated to drive the connecting column to rotate, so that the rotating convex block can be driven to rotate, limiting of the first open-hearth launder body and the second open-hearth launder body is relieved, and the function of quick disassembly is achieved.
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Description

Technical Field

[0001] This utility model belongs to the field of open-hearth furnace trough technology, and in particular to a modular splicing open-hearth furnace trough device for 88 castable refractory. Background Technology

[0002] 88 castable is a refractory castable material with alumina as the main component (content ≥88%). It belongs to high-performance monolithic refractories and is widely used in high-temperature industrial fields such as steel, cement, and glass. The open-hearth furnace trough is a key piece of equipment used for tapping steel from open-hearth furnaces in the metallurgical industry. Its main function is to safely and controllably guide molten steel from the open-hearth furnace to the ladle or subsequent processing station. As a transmission channel for high-temperature molten steel, it must have properties such as corrosion resistance, thermal shock resistance, and erosion resistance.

[0003] In the iron and steel metallurgical industry, the open-hearth furnace trough is a key piece of equipment connecting the taphole of the open-hearth furnace to the ladle, responsible for guiding the flow of high-temperature molten steel. Traditional open-hearth furnace troughs typically employ a monolithic castable structure, meaning they are formed in one piece on-site using high-alumina castable (such as 88 castable), or constructed as a single monolithic trough using refractory bricks. However, this structure presents the following significant problems in practical applications:

[0004] Overall replacement is costly and economically inefficient: Due to the long-term exposure to the scouring of high-temperature molten steel, thermal shock and slag erosion, the lining of the trough is prone to local damage (such as cracking, peeling or erosion). Once the existing integral trough is partially damaged, it often needs to be completely dismantled and recast, which not only wastes materials, but also has high replacement costs, involving furnace shutdown, labor, new material costs, etc. Therefore, there is an urgent need for a new type of modular trough device.

[0005] The purpose of this invention is to provide a modular splicing 88 castable open-hearth furnace trough device to solve the problems mentioned in the background art. Utility Model Content

[0006] The purpose of this invention is to provide a modular splicing 88 castable open-hearth furnace trough device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a modular splicing open-hearth furnace trough device for 88 castable refractory, comprising a first open-hearth furnace trough body and a second open-hearth furnace trough body, wherein a splicing component for quickly connecting the first open-hearth furnace trough body and the second open-hearth furnace trough body is provided between the two, the splicing component comprising an embedding part disposed on one side of the first open-hearth furnace trough body and an insertion part disposed on one side of the second open-hearth furnace trough body, wherein a movement component for controlling the insertion part is also disposed on one side of the second open-hearth furnace trough body.

[0008] Furthermore, the embedded part includes a slot formed on one side of the first open-hearth furnace flow channel body, an installation frame is provided in the slot, and sliding columns are symmetrically arranged on both sides of the installation frame, and the sliding columns are slidably connected within the installation frame.

[0009] Furthermore, a first spring is sleeved on the outer side of each sliding column. One end of the first spring is connected to the mounting frame, and the other end is connected to a locking block. A roller is provided at the bottom of the locking block.

[0010] Furthermore, the insertion part includes an installation column disposed on one side of the second open-hearth furnace flue body. The installation column is hollow and penetrates the second open-hearth furnace flue body. Two sets of limiting discs are provided at the front end of the installation column.

[0011] Furthermore, a sliding groove through the mounting post is provided between each of the individual limiting discs, a top block is slidably connected in each sliding groove, and a moving groove is symmetrically provided on both sides of each sliding groove. A moving block is slidably connected in each moving groove, a second spring is connected to one side of each moving block, and the moving block is connected to the top block.

[0012] Furthermore, the motion component includes a connecting column disposed on one side of the second open-hearth furnace flue body. A rotating block is disposed at one end of the connecting column, and a second bevel gear is disposed at the other end. The second bevel gear is meshed with a first bevel gear. A rotating column is disposed at the back axis of the first bevel gear, and a rotating protrusion is disposed at the end of the rotating column.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This utility model, by setting an embedding part, an insertion part, and a moving component, can quickly connect the first open-hearth furnace flow channel body and the second open-hearth furnace flow channel body. Insertion forms a fixed connection, and rotating the rotating block drives the connecting column to rotate, which in turn drives the rotating protrusion to rotate, thereby releasing the limiting position of the first open-hearth furnace flow channel body and the second open-hearth furnace flow channel body and realizing the function of quick disassembly. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2This is a schematic diagram of the first open-hearth furnace flow channel structure in this utility model;

[0018] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0019] Figure 4 This is a schematic diagram of the structure of the second open-hearth furnace flow channel in this utility model;

[0020] Figure 5 This is a schematic diagram of the rotating protrusion in this utility model;

[0021] Figure 6 This is a schematic diagram of the sliding groove in this utility model;

[0022] Figure 7 for Figure 6 Enlarged structural diagram at point B;

[0023] Figure 8 This is a schematic diagram of the motion component in this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] In the picture:

[0026] 1. First open-hearth furnace flow channel body; 2. Second open-hearth furnace flow channel body; 3. Mounting frame; 4. Sliding column; 5. Locking block; 6. Roller; 7. First spring; 8. Mounting column; 9. Limiting plate; 10. Rotating protrusion; 11. Sliding groove; 12. Top block; 13. Moving groove; 14. Second spring; 15. Rotating column; 16. First bevel gear; 17. Second bevel gear; 18. Connecting column; 19. Rotating block; 20. Moving block. Detailed Implementation

[0027] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0028] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.

[0029] The connection method can be any existing method, such as bonding, welding, or bolting, depending on the actual needs.

[0030] Please see Figures 1 to 8As shown, a modular splicing open-hearth furnace trough device for 88 castable includes a first open-hearth furnace trough body 1 and a second open-hearth furnace trough body 2, and a splicing component for quickly connecting the two is provided between the first open-hearth furnace trough body 1 and the second open-hearth furnace trough body 2.

[0031] The splicing assembly includes an embedded part on one side of the first open-hearth furnace flue body 1. The embedded part includes a slot on one side of the first open-hearth furnace flue body 1. An installation frame 3 is installed in the slot. Sliding columns 4 are symmetrically arranged on both sides of the installation frame 3. The sliding columns 4 are slidably connected within the installation frame 3. A first spring 7 is sleeved on the outside of each sliding column 4. The function of the first spring 7 is that when the locking block 5 enters between the two limiting discs 9, the first spring 7 returns to its original deformation, thereby pushing the locking block 5 between the two limiting discs 7, thus limiting the second open-hearth furnace flue body 2. One end of the first spring 7 is connected to the installation frame 3, and the other end is connected to the locking block 5. One side of the locking block 5 is set in an inclined shape. The function of this is that after the limiting disc 9 contacts the inclined surface of the locking block 5, it pushes it, thereby facilitating the locking block 5 to enter between the two limiting discs 9. A roller 6 is provided at the bottom of the locking block 5.

[0032] When the limiting plate 9 contacts the two locking blocks 5, it contacts the inclined surface of the locking blocks 5, thereby pushing the two locking blocks 5. The locking blocks 5 push the sliding column 4 to slide on the side of the mounting frame 3, thereby compressing the first spring 7. When the locking block 5 enters between the two limiting plates 9, the first spring 7 restores its deformation and pushes the locking block 5 between the two limiting plates 9, thereby fixing the second open-hearth furnace flow channel body 2.

[0033] The insertion part is provided on one side of the second open-hearth furnace flow channel body 2. The insertion part includes a mounting column 8 on one side of the second open-hearth furnace flow channel body 2. The mounting column 8 is hollow. The second open-hearth furnace flow channel body 2 has a cavity for installing the first bevel gear 16 and the second bevel gear 17. The mounting column 8 penetrates the second open-hearth furnace flow channel body 2. Two sets of limiting plates 9 are provided at the front end of the mounting column 8. A sliding groove 11 is opened between the two limiting plates 9, penetrating the mounting column 8. The sliding groove 11 is located between the two limiting plates 9. A top block 12 is slidably connected in a single sliding groove 11. A moving groove 13 is symmetrically opened on both sides of a single sliding groove 11. A moving block 20 is slidably connected in a moving groove 13. A second spring 14 is connected to one side of the moving block 20. In its natural state, the top block is located in the sliding groove 11 of the mounting column 8, so it will not collide with the locking block 5. The moving block 20 is connected to the top block 12. A moving component for controlling the insertion part is also provided on one side of the second open-hearth furnace flow channel body 2. The moving component includes a connecting column 18 provided on one side of the second open-hearth furnace flow channel body 2. A rotating block 19 is provided at one end of the connecting column 18, and a second bevel gear 17 is provided at the other end. The second bevel gear 17 is meshed with a first bevel gear 16. A rotating column 15 is provided at the axis of the back of the first bevel gear 16. A rotating protrusion 10 is provided at the end of the rotating column 15. Both ends of the rotating protrusion 10 are provided with protruding parts, such as... Figures 5-6 As shown, when the rotating protrusion 10 rotates, the protruding parts at both ends will contact the top block 12, thereby pushing both out of the sliding groove 11.

[0034] The rotating column 15 can rotate within the mounting column 8. When rotating, it drives the rotating protrusion 10 to rotate, so that the two protruding parts of the rotating protrusion 10 will abut against the two top blocks 12, thereby pushing the two top blocks 12 out. The top blocks 12 then drive the moving block 20 located on one side to slide in the moving groove 13, thereby stretching the second spring 14. When the rotating protrusion 10 no longer abuts against the top blocks 12, the second spring 14 will return to its original deformation, restoring the top blocks 12 to their original position.

[0035] Working principle: In use, the first open-hearth furnace flue body 1 and the second open-hearth furnace flue body 2 are connected. When the limiting plate 9 contacts the two locking blocks 5, it contacts the inclined surface of the locking blocks 5. The limiting plate 9 pushes the two locking blocks 5, and the locking blocks 5 push the sliding column 4 to slide on the side of the mounting frame 3. The first spring 7 is compressed. When the locking block 5 enters between the two limiting plates 9, the first spring 7 restores its deformation and pushes the locking block 5 between the two limiting plates 9, thereby fixing the second open-hearth furnace flue body 2.

[0036] When it is necessary to disassemble the two, rotate the rotating block 19, which in turn drives the connecting column 18 to rotate. The first bevel gear 16 at the end of the connecting column 18 drives the second bevel gear 17 that meshes with it to rotate, which in turn drives the rotating column 15 to rotate. When the rotating column 15 rotates, it drives the rotating protrusion 10 to rotate. The two protruding parts of the rotating protrusion 10 will then abut against the two top blocks 12, thereby pushing the two top blocks 12 out. The top blocks 12 then drive the moving block 20 located on one side to slide in the moving groove 13. The second spring 14 is then stretched, and the top block 12 comes into contact with the locking block 5, which pushes the two locking blocks 5 to both sides, thus separating them from the two limiting discs 9 and releasing the limiting of the two, thereby enabling disassembly.

[0037] It should be noted that, in this document, relational terms such as "one" and "two" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A modular spliced 88 castable hearth runner apparatus, characterized by: include The first open-hearth furnace gutter body (1) and the second open-hearth furnace gutter body (2) are provided with a splicing component for quickly connecting the two. The splicing assembly includes an embedded part disposed on one side of the first open-hearth furnace flue body (1) and an insertion part disposed on one side of the second open-hearth furnace flue body (2). The second open-hearth furnace flue body (2) is also provided with a motion component for controlling the insertion part.

2. A modular spilt 88 castable hearth runner assembly according to claim 1, wherein: The embedded part includes a slot opened on one side of the first open-hearth furnace flue body (1), an installation frame (3) is provided in the slot, and sliding columns (4) are symmetrically arranged on both sides of the installation frame (3), and the sliding columns (4) are slidably connected in the installation frame (3).

3. A modular spilt 88 castable hearth runner assembly according to claim 2, wherein: A first spring (7) is sleeved on the outside of a single sliding column (4). One end of the first spring (7) is connected to the mounting frame (3), and the other end is connected to a locking block (5). A roller (6) is provided at the bottom of the locking block (5).

4. A modular spilt 88 castable hearth runner apparatus as claimed in claim 1, wherein: The insertion part includes an installation column (8) disposed on one side of the second open-hearth furnace flue body (2). The installation column (8) is hollow and penetrates the second open-hearth furnace flue body (2). Two sets of limiting plates (9) are provided at the front end of the installation column (8).

5. A modular spilt 88 castable hearth runner assembly according to claim 4, wherein: A sliding groove (11) through the mounting post (8) is provided between the two limiting discs (9). A top block (12) is slidably connected in a single sliding groove (11). A moving groove (13) is symmetrically provided on both sides of a single sliding groove (11). A moving block (20) is slidably connected in a moving groove (13). A second spring (14) is connected to one side of the moving block (20). The moving block (20) is connected to the top block (12).

6. The modular splicing type 88 castable open-hearth furnace flow channel device according to claim 1, characterized in that: The motion component includes a connecting column (18) disposed on one side of the second open-hearth furnace flue body (2). One end of the connecting column (18) is provided with a rotating block (19), and the other end is provided with a second bevel gear (17). The second bevel gear (17) is meshed with a first bevel gear (16). A rotating column (15) is disposed at the back axis of the first bevel gear (16), and a rotating protrusion (10) is disposed at the end of the rotating column (15).