Converter tapping hole seating brick structure

Abstract

The utility model provides a converter tapping hole brick cup structure, and relates to the technical field of converters, the converter tapping hole brick cup structure comprises an outer brick cup assembly, an inner brick cup assembly and a protective pipe, the outer brick cup assembly and the inner brick cup assembly jointly define an inner cavity, the protective pipe is fixedly embedded in the inner cavity, and reinforcing ribs are embedded in a first brick cup and a second brick cup; by arranging the protective pipe, the situation that the tapping hole seat brick is broken due to the fact that the tapping hole seat brick is directly collided and rubbed by a converter disassembling machine during drilling can be avoided, the mechanical impact force borne by the tapping hole seat brick during tapping hole replacement is reduced, the service life is effectively prolonged, and the maintenance time of a converter is saved; through matched use of the convex blocks and the grooves, the first brick cup and / or the second brick cup are connected in an embedded mode and make close contact, the whole brick cup is stable and firm, and the service life is further prolonged; by arranging the reinforcing ribs, the structural strength of the first brick cup and the second brick cup can be improved, so that the first brick cup and the second brick cup are firmer, and the service life is further prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of converters, and in particular to a converter tapping port base brick structure. Background Art

[0002] The converter tapping port base brick is an important component of the converter lining. Its main function is to fix and support the converter tapping port, reduce the erosion of the converter tapping port by molten steel, extend the life of the converter tapping port, and thus stabilize the controllable round steel flow structure of the converter tapping, and avoid slag rolling during the converter tapping process due to damage to the tapping port, causing quality accidents such as excessive molten steel composition.

[0003] Conventional converter tapholes are mostly made of segmented refractory bricks. During use, when replacing the taphole, it is necessary to drill holes from the outside to the inside through a furnace dismantling machine to break the old taphole bricks to be replaced, and clean up the remaining bricks, residual steel, etc. before replacing the new taphole. In the process of using the furnace dismantling machine to drill and clean the remaining taphole, it is inevitable that the converter taphole seat bricks will be touched. In multiple collisions and drilling frictions, it is very easy to cause the taphole seat bricks to break due to mechanical impact, especially the taphole seat bricks close to the side of the converter shell, the probability of breakage is greater, affecting the service life, and even due to the breakage of the taphole seat bricks, the furnace has to be forced to stop and replace new taphole seat bricks, which directly affects the production efficiency of the converter. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a converter steel-tipping port seat brick structure, which can solve the technical problem that in the current process of using a furnace dismantling machine to drill and clean the remaining steel-tipping port, the converter steel-tipping port seat bricks will inevitably be touched, and multiple collisions and drilling frictions will easily cause the steel-tipping port seat bricks to break due to mechanical impact.

[0005] An embodiment of the present application provides a converter steel outlet seat brick structure, comprising an outer seat brick assembly, an inner seat brick assembly and a protective tube, the outer seat brick assembly and the inner seat brick assembly are jointly arranged to form an inner cavity, the protective tube is fixedly embedded in the inner cavity, the outer seat brick assembly comprises a plurality of first seat bricks connected in sequence, the inner seat brick assembly comprises a plurality of second seat bricks connected in sequence, the first seat brick and the second seat brick are both provided with protrusions, the first seat brick and the second seat brick are both provided with grooves, the protrusions are used in conjunction with the grooves, and reinforcing ribs are embedded in the first seat brick and the second seat brick.

[0006] Wherein, the protection tube is fixed to the outer seat brick assembly and / or the inner seat brick assembly by bolts.

[0007] Among them, a fixing plate is embedded in the outer seat brick assembly and / or the inner seat brick assembly, and the fixing plate is cast integrally with the outer seat brick assembly and / or the inner seat brick assembly. A mounting plate is fixed on the protective tube, and the mounting plate and the fixing plate are fixed by welding.

[0008] Wherein, the protection tube and the reinforcing ribs are both made of low alloy steel, the thickness of the protection tube is 1-5 mm, and the first seat brick and the second seat brick are both stamped and formed of corundum.

[0009] Wherein, the adjacent first bricks, the adjacent second bricks, and the adjacent first bricks and second bricks are all bonded and connected by an adhesive.

[0010] Wherein, the outer seat brick assembly and the inner seat brick assembly are both prism-shaped, and the inner cavity is cylindrical.

[0011] Beneficial effects of the utility model:

[0012] The utility model provides a converter tapping port seat brick structure. By arranging a protective pipe, it is possible to prevent the tapping port seat brick from being directly collided with or rubbed against by a furnace dismantling machine during drilling, thereby preventing the tapping port seat brick from being broken, thereby reducing the mechanical impact force on the tapping port seat brick when replacing the tapping port, effectively extending the service life, and saving converter maintenance time. By using the protrusion and the groove in coordination, the first seat brick and / or the second seat brick are engaged and connected in close contact, and the whole is stable and firm, further extending the service life. By arranging reinforcing ribs, the structural strength of the first seat brick and the second seat brick can be improved, making the first seat brick and the second brick more solid, further extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 This is a schematic diagram of the overall structure of Example 1 of the present application;

[0015] Figure 2 This is a schematic diagram of the overall structure in Example 2 of the present application.

[0016] The reference numerals are:

[0017] 1. External seat brick assembly; 11. First seat brick; 12. Bump; 13. Groove; 14. Reinforcement rib; 15. Fixing plate;

[0018] 2. Inner seat brick assembly; 21. Second seat brick;

[0019] 3. Protective tube; 31. Mounting plate;

[0020] 4. Inner cavity. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0023] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0024] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0025] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0026] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0027] Embodiment 1

[0028] like Figure 1 As shown, an embodiment of the present application provides a converter tapping port seat brick structure, comprising an outer seat brick assembly 1, an inner seat brick assembly 2 and a protective tube 3, the outer seat brick assembly 1 and the inner seat brick assembly 2 are jointly arranged to form an inner cavity 4, the protective tube 3 is fixedly embedded in the inner cavity 4, the outer seat brick assembly 1 comprises a plurality of first seat bricks 11 connected in sequence, the inner seat brick assembly 2 comprises a plurality of second seat bricks 21 connected in sequence, a protrusion 12 is provided on the first seat brick 11 and the second seat brick 21, a groove 13 is provided on the first seat brick 11 and the second seat brick 21, the protrusion 12 is used in conjunction with the groove 13, and reinforcing ribs 14 are embedded on the first seat brick 11 and the second seat brick 21.

[0029] When replacing the steel outlet, it is necessary to use a furnace dismantling machine to drill from the outside to the inside of the steel outlet near the furnace shell. The drill bit of the furnace dismantling machine is a quadrangular pyramid with a toothed structure at the corners to enhance the scraping effect during the drilling process. During the drilling process, the drill bit applies a strong axial pressure and rotational force from the outside to the inside of the steel outlet, in order to quickly penetrate and clean the damaged steel outlet bricks. During this process, the drill bit of the furnace dismantling machine and the steel outlet seat bricks will frequently collide and rub. Since the inner cavity 4 of the converter steel outlet seat brick is attached with a protective tube 3, the protective tube 3 hinders the furnace dismantling machine drill bit and The tapping hole is in direct contact with the bricks, which greatly reduces the mechanical impact force on the bricks when replacing the tapping hole, and avoids the accident of brick breakage. After 10 to 20 minutes of drilling, the bricks remaining in the tapping hole are cleaned, and then the new tapping hole is installed in the tapping hole bricks. After installing the slide mechanism, the furnace is rocked to the back of the furnace, keeping the tapping hole at the lowest horizontal point, and starting to spray refractory gunning powder to fill the gap between the tapping hole and the tapping hole bricks. After waiting for 10 to 20 minutes for the refractory gunning powder to solidify, the converter tapping hole replacement work is completed.

[0030] By setting the protection tube 3, it is possible to prevent the furnace dismantling machine from directly colliding with or rubbing the tapping hole seat bricks during drilling, thereby preventing the tapping hole seat bricks from breaking, thereby reducing the mechanical impact force on the tapping hole seat bricks when replacing the tapping hole, effectively extending the service life, and saving the converter maintenance time; by the coordinated use of the protrusion 12 and the groove 13, the first seat brick 11 and / or the second seat brick 21 are interlocked and closely contacted, and the overall stability and firmness are further extended, thereby further extending the service life; by setting the reinforcing ribs 14, the structural strength of the first seat brick 11 and the second seat brick 21 can be improved, thereby making the first seat brick 11 and the second seat brick 21 more solid, thereby further extending the service life.

[0031] In this embodiment, the protection tube 3 is fixed to the outer seat brick assembly 1 and / or the inner seat brick assembly 2 by bolts.

[0032] In this embodiment, the protection tube 3 and the reinforcing ribs 14 are both made of low alloy steel. The thickness of the protection tube 3 is 1 to 5 mm. The first brick 11 and the second brick 21 are both stamped from corundum. Low alloy steel is light in weight, high in strength, and durable, which prolongs its service life.

[0033] In this embodiment, the adjacent first bricks 11 , the adjacent second bricks 21 , and the adjacent first bricks 11 and second bricks 21 are all bonded and connected by an adhesive.

[0034] In this embodiment, the outer seat brick assembly 1 and the inner seat brick assembly 2 are both prism-shaped, and the inner cavity 4 is cylindrical.

[0035] Embodiment 2

[0036] like Figure 2 As shown, a fixing plate 15 is embedded in the outer seat brick assembly 1 and / or the inner seat brick assembly 2, and the fixing plate 15 is integrally cast with the outer seat brick assembly 1 and / or the inner seat brick assembly 2. A mounting plate 31 is fixedly provided on the protective tube 3, and the mounting plate 31 and the fixing plate 15 are fixed by welding; when in use, the mounting plate 31 is welded to the fixing plate 15 to fix the protective tube 3 in the inner cavity 4.

[0037] The rest is the same as that of the first embodiment and will not be described again here.

[0038] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A converter tapping hole brick structure, characterized in that: It includes an outer seat brick assembly, an inner seat brick assembly and a protective tube. The outer seat brick assembly and the inner seat brick assembly are jointly arranged to form an inner cavity. The protective tube is fixedly embedded in the inner cavity. The outer seat brick assembly includes a plurality of first seat bricks connected in sequence. The inner seat brick assembly includes a plurality of second seat bricks connected in sequence. The first seat brick and the second seat brick are both provided with protrusions. The first seat brick and the second seat brick are both provided with grooves. The protrusions are used in conjunction with the grooves. Reinforcing ribs are embedded on the first seat brick and the second seat brick.

2. The converter tapping port brick structure according to claim 1, characterized in that: The protection tube is fixed to the outer seat brick assembly and / or the inner seat brick assembly by bolts.

3. The converter tapping hole brick structure according to claim 1, characterized in that: A fixing plate is embedded in the outer brick assembly and / or the inner brick assembly, and the fixing plate is integrally cast with the outer brick assembly and / or the inner brick assembly. A mounting plate is fixed on the protective tube, and the mounting plate is fixed to the fixing plate by welding.

4. The converter tapping hole brick structure according to claim 1, characterized in that: The protection tube and the reinforcing ribs are both made of low alloy steel, the thickness of the protection tube is 1-5 mm, and the first brick and the second brick are both stamped and formed of corundum.

5. The converter tapping hole brick structure according to claim 1, characterized in that: Adjacent first bricks, adjacent second bricks, and adjacent first bricks and second bricks are all bonded and connected by an adhesive.

6. The converter tapping hole brick structure according to claim 1, characterized in that: The outer seat brick assembly and the inner seat brick assembly are both prism-shaped, and the inner cavity is cylindrical.

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