Environment-friendly refractory magnesia carbon brick
By introducing structural designs such as L-shaped strips, L-shaped grooves, T-shaped grooves, and cylindrical protrusions into magnesia-carbon bricks, the interlocking and clamping force between bricks is enhanced, solving the problem of insufficient clamping force in existing ladle bottom brick structures, and improving the service life of magnesia-carbon bricks and the stability of the ladle.
Patent Information
- Application Number
- CN202520305412.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-02-25
AI Technical Summary
The existing furnace bottom bricks used in steel ladles have weak structural clamping force, making them prone to separation, sinking, falling off and damage, which affects their service life and the normal operation of steelmaking production.
The design employs a combination of L-shaped strips, L-shaped grooves, T-shaped strips, and T-shaped grooves, along with cylindrical protrusions and arc grooves. Through the interlocking and baffle cooperation, the interlocking and clamping force between bricks is enhanced, ensuring uniform overall stress distribution.
This improves the service life of magnesia-carbon bricks, avoids localized damage and detachment of the bricks, and ensures the stability and service life of the steel ladle.
Smart Images

Figure CN223783352U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of magnesia-carbon brick technology, specifically to an environmentally friendly refractory magnesia-carbon brick. Background Technology
[0002] Magnesia-carbon bricks are non-burning composite refractory materials made from high-melting-point alkaline oxide magnesium oxide and high-melting-point carbon materials that are difficult to be wetted by slag, with the addition of various non-oxide additives and bonded with carbonaceous binders. The ladle is an important device in the metallurgical industry, playing the dual role of storing and transferring molten steel, and also performing ladle refining. The service life of the ladle not only affects the consumption of refractory materials, but also directly affects the normal production of steelmaking. In recent years, the secondary refining ratio of ladle furnaces has been increasing, and at the same time, the requirements for the refining quality of steel are becoming higher and higher, and the working conditions of ladle furnaces are becoming increasingly harsh.
[0003] Currently, the bottom bricks used in steel ladles are basically environmentally friendly refractory magnesia-carbon bricks with a standard rectangular structure. However, the clamping force of this type of bottom brick structure is weak, and it is very easy for it to separate, sink, fall off, or be damaged, which directly affects the service life of the steel ladle. Therefore, we propose an environmentally friendly refractory magnesia-carbon brick. Utility Model Content
[0004] The purpose of this invention is to provide an environmentally friendly refractory magnesia-carbon brick.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an environmentally friendly refractory magnesia-carbon brick, comprising a brick body one, a brick body two disposed on the rear side of the brick body one, connecting seats disposed on the left side of both the brick body one and the brick body two, and multiple snap-fit strips connected to the right side of both connecting seats, multiple snap-fit grooves formed on the left side of both the brick body one and the brick body two, the multiple snap-fit grooves and multiple snap-fit strips being arranged in a one-to-one correspondence, a baffle one connected to the top of the connecting seat, and one end of a T-shaped strip connected to the bottom middle side of the baffle one, the bottom of the baffle one being front and back... Both sides are connected with L-shaped strips. The right sides of the L-shaped strips and T-shaped strips are connected to the left outer wall of the first brick body. The middle right side of the first brick body and the second brick body are both provided with T-shaped grooves. L-shaped grooves are provided on both the front and rear sides of the T-shaped grooves. The T-shaped grooves and T-shaped strips are set correspondingly. The two L-shaped grooves and two L-shaped strips are set one-to-one. Two extrusion blocks are connected to one side of the front L-shaped strip. A sliding groove is provided on one side of the front L-shaped groove. The two extrusion blocks slide inside the sliding groove. The bottom end of the sliding groove extends downward to the bottom of the arc groove.
[0006] As a further embodiment of this utility model: two cylindrical protrusions are connected to the rear side of both brick body one and brick body two, and two arc-shaped grooves are opened on the front side of both brick body one and brick body two, with the arc-shaped grooves and cylindrical protrusions being arranged correspondingly.
[0007] As a further embodiment of this utility model: a through groove is provided on one side of the interior of each of the multiple arc-shaped grooves, and one end of the through groove extends into the interior of the sliding groove.
[0008] As a further aspect of this utility model: the T-shaped strip and the two L-shaped strips are not on the same vertical plane.
[0009] As a further embodiment of this utility model: both the bottom right side of the first brick and the second brick are connected to a second baffle, which is located below the T-shaped groove and the two L-shaped grooves.
[0010] As a further embodiment of this utility model, multiple through holes are provided inside both brick body one and brick body two.
[0011] As a further embodiment of this utility model: both the top right side of the first brick and the second brick are provided with a hollow groove, and the hollow groove and the baffle are provided accordingly.
[0012] Compared with the prior art, the beneficial effects of this utility model by adopting the above technical solution are as follows:
[0013] 1. This utility model uses the combination of L-shaped strips, L-shaped grooves, T-shaped strips and T-shaped grooves to make the bricks interlock with each other, and the overall force is more even, avoiding the damage of bricks due to excessive local force, thereby greatly improving the service life of the furnace body. In addition, the combination of baffle one and baffle two can increase the compaction force of the bottom bricks when laying magnesia-carbon bricks.
[0014] 2. This utility model uses the combination of cylindrical protrusions and arc grooves to make the two connected bricks fit more tightly, ensuring the stability of the overall structure and preventing sinking and falling off. In addition, the setting of limiting blocks makes it difficult for the bricks to slip off during splicing, thus facilitating masonry.
[0015] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description
[0016] Figure 1 This is an overall schematic diagram of an embodiment of the present utility model;
[0017] Figure 2 This is a schematic diagram showing the position of the snap-fit strip in an embodiment of this utility model;
[0018] Figure 3 This is a schematic diagram showing the position of the baffle in an embodiment of the present utility model;
[0019] Figure 4 This is a schematic diagram showing the position of the cylindrical protrusion in an embodiment of this utility model;
[0020] Figure 5 This is a schematic diagram showing the position of the extrusion block in an embodiment of this utility model.
[0021] In the diagram: 1. Brick body one; 2. Brick body two; 3. L-shaped strip; 4. T-shaped strip; 5. Baffle one; 6. L-shaped groove; 7. T-shaped groove; 8. Baffle two; 9. Arc groove; 10. Through groove; 11. Cylindrical protrusion; 12. Through hole; 13. Extrusion block; 14. Sliding groove; 15. Snap-fit strip; 16. Snap-fit groove; 17. Connecting seat. Detailed Implementation
[0022] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that the description of these embodiments is for the purpose of helping to understand this utility model, but does not constitute a limitation on this utility model.
[0023] Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.
[0024] Please see the appendix Figure 1 - Appendix Figure 5 This utility model discloses an environmentally friendly refractory magnesia-carbon brick, comprising a brick body 1, a brick body 2 on the rear side of the brick body 1, a connecting seat 17 on the left side of both the brick body 1 and the brick body 2, and multiple snap-fit strips 15 connected to the right side of each connecting seat 17. Multiple snap-fit grooves 16 are formed on the left side of both the brick body 1 and the brick body 2, with each snap-fit groove 16 corresponding to a snap-fit strip 15. A baffle 5 is connected to the top of the connecting seat 17, and one end of a T-shaped strip 4 is connected to the bottom center of the baffle 5. L-shaped strips are connected to the front and rear sides of the bottom of the baffle 5. The right sides of the L-shaped strip 3, L-shaped strip 3 and T-shaped strip 4 are all connected to the left outer wall of the brick body 1. The right middle of the brick body 1 and the brick body 2 are both provided with T-shaped grooves 7. L-shaped grooves 6 are provided on both the front and rear sides of the T-shaped groove 7. The T-shaped groove 7 and the T-shaped strip 4 are set accordingly. The two L-shaped grooves 6 and the two L-shaped strips 3 are set in a one-to-one correspondence. Two extrusion blocks 13 are connected to one side of the front L-shaped strip 3. A sliding groove 14 is provided on one side of the front L-shaped groove 6. The two extrusion blocks 13 slide inside the sliding groove 14. The bottom end of the sliding groove 14 extends downward to the bottom of the arc groove 9.
[0025] In Embodiment 1, two cylindrical protrusions 11 are connected to the rear side of both brick body 1 and brick body 2, and two arc-shaped grooves 9 are opened on the front side of both brick body 1 and brick body 2. The arc-shaped grooves 9 and the cylindrical protrusions 11 are arranged correspondingly. A through groove 10 is opened on one side of the interior of each of the multiple arc-shaped grooves 9, and one end of the through groove 10 extends into the interior of the sliding groove 14.
[0026] Specifically, the two arc-shaped grooves 9 on brick body 2 are aligned with the two cylindrical protrusions 11 on brick body 1 and inserted, so that the cylindrical protrusions 11 enter brick body 2, which facilitates the laying and makes the bricks interlock with each other, resulting in a more uniform overall force and avoiding damage to the bricks due to excessive local force, thereby greatly improving the service life of the furnace body.
[0027] In the second embodiment, the T-shaped strip 4 and the two L-shaped strips 3 are not on the same vertical plane. The bottom right side of both brick body 1 and brick body 2 is connected to baffle 2 8. Baffle 2 8 is located below the T-shaped groove 7 and the two L-shaped grooves 6. Multiple through holes 12 are opened inside both brick body 1 and brick body 2.
[0028] Specifically, by setting the T-shaped strip 4 and the two L-shaped grooves 6 separately, the bricks interlock with each other, and the overall force is more even. By setting the baffle 1 5 and baffle 2 8 together, the compaction force of the bottom bricks can be increased when the magnesia-carbon bricks are laid.
[0029] Working principle:
[0030] When the magnesia-carbon brick needs to be used, first insert the connecting seat 17 into the snap-fit groove 16 via the snap-fit strip 15 to complete the connection between the connecting seat 17 and the brick body 1. Then, move the brick body 2 to one side of the brick body 1 according to the required laying direction. When the brick body 2 moves to the left or right side of the brick body 1, insert the corresponding two L-shaped strips 3 and T-shaped strips 4 into the two L-shaped grooves 6 and T-shaped grooves 7 on the brick body 1 until the baffle 5 on the brick body 2 contacts the surface of the brick body 1, completing the splicing. During the splicing process, the pressing block 13 is set to prevent the brick body from falling. During the process, the cylindrical protrusion 11 is squeezed to slide out from the inside of brick body 1, which facilitates the subsequent laying with other bricks. When brick body 2 moves to the front and rear sides of brick body 1, the two arc grooves 9 on brick body 2 are aligned with the two cylindrical protrusions 11 on brick body 1 and inserted, so that the cylindrical protrusions 11 enter brick body 2, which facilitates the laying. This makes the bricks interlock with each other, and the overall force is more even, avoiding the situation of excessive local force causing brick damage, thus greatly improving the service life of the furnace body. At this point, the entire process is completed.
[0031] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on.
[0032] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.
[0033] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments.
[0034] For those skilled in the art, various changes, modifications, substitutions, and alterations to these embodiments without departing from the principles and spirit of this utility model will still fall within the protection scope of this utility model.
Claims
1. An environmentally friendly refractory magnesia-carbon brick, comprising a brick body (1), characterized in that: A second brick (2) is provided on the rear side of the first brick (1). A connecting seat (17) is provided on the left side of both the first brick (1) and the second brick (2). Multiple snap-fit strips (15) are connected to the right side of both connecting seats (17). Multiple snap-fit grooves (16) are provided on the left side of both the first brick (1) and the second brick (2). The multiple snap-fit grooves (16) and the multiple snap-fit strips (15) are arranged in a one-to-one correspondence. A baffle (5) is connected to the top of the connecting seat (17). One end of a T-shaped strip (4) is connected to the bottom middle side of the baffle (5). L-shaped strips (3) are connected to the front and rear sides of the bottom of the baffle (5). The L-shaped strips (3) and the T-shaped strips (4) are connected to each other. The right side of each strip (4) is connected to the left outer wall of the first brick (1). The middle right side of the first brick (1) and the second brick (2) are provided with T-shaped grooves (7). L-shaped grooves (6) are provided on both the front and back sides of the T-shaped grooves (7). The T-shaped grooves (7) and the T-shaped strips (4) are provided in a corresponding manner. The two L-shaped grooves (6) and the two L-shaped strips (3) are provided in a one-to-one correspondence. Two extrusion blocks (13) are connected to one side of the front L-shaped strip (3). A sliding groove (14) is provided on one side of the front L-shaped groove (6). The two extrusion blocks (13) slide inside the sliding groove (14). The bottom end of the sliding groove (14) extends downward to the bottom of the arc groove (9).
2. The environmentally friendly refractory magnesia-carbon brick according to claim 1, characterized in that: Both the first brick (1) and the second brick (2) are connected to two cylindrical protrusions (11) on their rear sides. Both the first brick (1) and the second brick (2) are provided with two arc-shaped grooves (9) on their front sides. The arc-shaped grooves (9) and the cylindrical protrusions (11) are provided in a corresponding manner.
3. The environmentally friendly refractory magnesia-carbon brick according to claim 2, characterized in that: Each of the multiple arc-shaped grooves (9) has a through groove (10) on one side inside, and one end of the through groove (10) extends into the interior of the slide groove (14).
4. The environmentally friendly refractory magnesia-carbon brick according to claim 1, characterized in that: The T-shaped strip (4) and the two L-shaped strips (3) are not on the same vertical plane.
5. The environmentally friendly refractory magnesia-carbon brick according to claim 1, characterized in that: Both the right bottom of brick body one (1) and brick body two (2) are connected to baffle two (8), which is located below the T-shaped groove (7) and the two L-shaped grooves (6).
6. The environmentally friendly refractory magnesia-carbon brick according to claim 1, characterized in that: Both brick body one (1) and brick body two (2) have multiple through holes (12) inside.
7. The environmentally friendly refractory magnesia-carbon brick according to claim 1, characterized in that: Both the top right side of brick body one (1) and brick body two (2) are provided with empty grooves, and the empty grooves and baffle one (5) are provided accordingly.