Steel ladle wall working lining repairing structure

Abstract

The utility model discloses a steel ladle wall working lining repairing structure which comprises a steel ladle body, a working lining is built on the inner wall of the steel ladle body, at least one part of the working lining is immersed in molten steel in a molten pool area, and the working lining eroded by the molten steel is a working lining to be repaired. A repairing brick layer is arranged on the wall face of the side, making contact with molten steel, of the to-be-repaired working lining, the space between the repairing brick layer and the to-be-repaired working lining is filled with a viscous steel ladle repairing material layer, and the repairing brick layer is bonded to the to-be-repaired working lining through the viscous steel ladle repairing material layer. According to the utility model, the working lining to be repaired which is eroded by molten steel and has the thickness greater than the offline requirement is repaired and protected in advance through a simple and efficient construction mode under the condition of not influencing the capacity of the steel ladle and the quality of the molten steel, so that the purposes of prolonging the service life of the steel ladle, improving the ladle repairing efficiency, reducing the patching labor intensity and reducing the consumption of refractory materials per ton of steel are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a ladle structure technical field, specifically a ladle wall working lining repair structure. BACKGROUND

[0002] The ladle plays a vital role in the steel production, and is a container for conveying molten steel in each stage of secondary smelting. With the progress of smelting process and the increasing smelting requirements in the steel industry, the service conditions of the working lining refractory material for the ladle are becoming more and more severe, and higher requirements are put forward for the refractory material. During the service process, the ladle working lining is gradually thinned due to the erosion caused by thermal shock, slag erosion and molten steel scouring, and there is a certain safety hazard in continuous use. The traditional repair method is to remove all or part of the working lining ladle brick with serious erosion, and then use the same material to repair, which not only has high working strength and low working efficiency, but also has defects in the combination of new and old bricks, and has great use risk. SUMMARY

[0003] Therefore, the utility model wants to solve the technical problem of providing a ladle wall working lining repair structure which can repair and protect the working lining of the ladle wall in advance without affecting the capacity of the ladle and the quality of the molten steel, and improve the service life of the ladle and reduce the labor intensity.

[0004] To solve the above technical problems, the utility model provides the following technical scheme: a ladle wall working lining repair structure, which comprises a ladle body, a working lining is built on the inner wall of the ladle body, at least a part of the working lining is immersed in the molten steel in the molten pool area, the working lining eroded by the molten steel is the working lining to be repaired, a repair brick layer is arranged on the side wall of the working lining to be repaired which is in contact with the molten steel, an adhesive ladle repair material layer is filled between the repair brick layer and the working lining to be repaired, and the repair brick layer is adhered to the working lining to be repaired through the adhesive ladle repair material layer.

[0005] The ladle wall working lining repair structure has one end of the repair brick layer connected with the ladle bottom of the ladle body and extending to the ladle bottom wall of the ladle body, and the other end of the repair brick layer is connected with the working lining outside the molten pool area.

[0006] The ladle wall working lining repair structure has a thickness of the adhesive ladle repair material layer less than or equal to 30mm.

[0007] The ladle wall working lining repair structure has a thickness of the repair brick layer of 19.5-70.5mm.

[0008] The ladle wall working lining repair structure has a thickness of the working lining to be repaired of 30%-70% of the thickness of the working lining.

[0009] The ladle wall working lining repair structure, the thickness of the working lining is 160-230 mm.

[0010] The ladle wall working lining repair structure, the repair brick layer comprises two or more repair bricks, and the two or more repair bricks are connected to each other to form the repair brick layer.

[0011] The ladle wall working lining repair structure, the length L1 of the repair brick is 229-231 mm, the height L2 is 114-116 mm, and the width L3 is 19.5-70.5 mm.

[0012] The ladle wall working lining repair structure, the plane surrounded by the length edge and the height edge of the repair brick is a first plane, the plane surrounded by the height edge and the width edge of the repair brick is a second plane, and the plane surrounded by the width edge and the length edge of the repair brick is a third plane.

[0013] The ladle wall working lining repair structure, the plane surrounded by the length edge and the height edge of the repair brick is a first plane, the plane surrounded by the height edge and the width edge of the repair brick is a second plane, and the plane surrounded by the width edge and the length edge of the repair brick is a third plane.

[0014] The technical scheme of the ladle wall working lining repair structure has the following beneficial technical effects:

[0015] The ladle wall working lining repair structure has the following beneficial technical effects: BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The front view of the structure of the ladle wall working lining repair structure is shown in the schematic view.

[0017] Figure 2 The ladle wall working lining repair structure has the following beneficial technical effects: Figure 1 The A place of the structure of the ladle wall working lining repair structure is shown in the schematic view.

[0018] Figure 3 The structure of the repair brick of the ladle wall working lining repair structure is shown in the schematic view.

[0019] The reference signs in the drawing are as follows: 1 - ladle body; 2 - working lining; 3 - working lining to be repaired; 4 - layer of adhesive ladle repair material; 5 - layer of repair bricks; 6 - repair brick; 61 - first plane; 62 - second plane; 63 - third plane. DETAILED DESCRIPTION

[0020] The working lining repair structure of the ladle wall in the embodiment, as shown in the drawing, comprises a ladle body 1, a working lining 2 is built on the inner wall of the ladle body 1, at least a part of the working lining 2 is immersed in molten steel in the molten pool area, the working lining 2 eroded by molten steel is the working lining to be repaired 3, a layer of repair bricks 5 is arranged on the side wall of the working lining to be repaired 3 in contact with molten steel, a layer of adhesive ladle repair material 4 is filled between the layer of repair bricks 5 and the working lining to be repaired 3, and the layer of repair bricks 5 is adhered to the working lining to be repaired 3 through the layer of adhesive ladle repair material 4. Figure 1 As shown in the drawing, the thickness of the layer of adhesive ladle repair material 4 is less than or equal to 30 mm, and is preferably 15-20 mm; the thickness of the layer of repair bricks 5 is 19.5-70.5 mm, and is preferably 40 mm; the thickness of the working lining 2 is 160-230 mm, and the thickness of the working lining to be repaired 3 is 30%-70% of the thickness of the working lining 2.

[0021] Figure 1 As shown in the drawing, the thickness of the layer of adhesive ladle repair material 4 is less than or equal to 30 mm, and is preferably 15-20 mm; the thickness of the layer of repair bricks 5 is 19.5-70.5 mm, and is preferably 40 mm; the thickness of the working lining 2 is 160-230 mm, and the thickness of the working lining to be repaired 3 is 30%-70% of the thickness of the working lining 2.

[0022] As shown in the drawing, one end of the layer of repair bricks 5 is connected to the bottom wall of the ladle body 1 and extends to the bottom wall of the ladle body 1, and the other end of the layer of repair bricks 5 is connected to the working lining 2 outside the molten pool area; the layer of repair bricks 5 comprises two or more repair bricks 6, and the two or more repair bricks 6 are tightly connected to form the layer of repair bricks 5, and the repair bricks 6 can be selected from carbon-free bricks or carbon-containing machine-pressed bricks. Figures 1-2 As shown in the drawing, the length L1 of the repair brick 6 is 229-231 mm, and is preferably 230 mm; the height L2 is 114-116 mm, and is preferably 115 mm; and the width L3 is 19.5-70.5 mm, and is preferably 40 mm.

[0023] Figures 2-3 As shown in the drawing, the plane enclosed by the length edge and the height edge of the repair brick 6 is the first plane 61, the plane enclosed by the height edge and the width edge of the repair brick 6 is the second plane 62, and the plane enclosed by the width edge and the length edge of the repair brick 6 is the third plane 63.

[0024] As shown in the drawing, the plane enclosed by the length edge and the height edge of the repair brick 6 is the first plane 61, the plane enclosed by the height edge and the width edge of the repair brick 6 is the second plane 62, and the plane enclosed by the width edge and the length edge of the repair brick 6 is the third plane 63. Figure 3 Figure 1 ​​​As shown, the repair brick 6 is provided on the bottom of the ladle body 1. The repair brick 6 provided on the bottom of the ladle body 1 has one first plane 61 connected to the bottom of the ladle body 1 through an adhesive ladle repair material layer 4, one second plane 62 connected to the working lining 3 to be repaired through an adhesive ladle repair material layer 4, and the third plane 63 of two adjacent repair bricks 6 are connected to each other.

[0025] like Figure 1 As shown, the repair brick 6 is provided on the work lining 3 to be repaired. The repair brick 6 provided on the work lining 3 to be repaired has one first plane 61 connected to the work lining 3 to be repaired through the adhesive ladle repair material layer 4, and the other first plane 61 is in contact with the molten steel.

[0026] In actual construction, when the eroded thickness of the working lining 3 to be repaired reaches more than 30% but less than 70%, a comprehensive or partial repair and protection should be carried out on the working lining 3 to be repaired. The detailed operation process is as follows:

[0027] 1. Clean the ladle slag and dust adhering to the working lining 3 to be repaired to ensure the cleanliness of the construction surface;

[0028] 2. Use an atomizing tool to spray clean water onto the surface of the working lining 3 to be repaired in the ladle, keeping the working lining 3 moist;

[0029] 3. Manually apply the high-viscosity steel ladle repair material to the surface of the work lining 3 to be repaired and level it to form a viscosity steel ladle repair material layer 4. Ensure that the surface of the viscosity steel ladle repair material layer 4 is flat and clean after application, and the thickness of the viscosity steel ladle repair material layer 4 is not greater than 30 mm.

[0030] 4. After the coating is applied, quickly press the repair brick 6 onto the surface of the adhesive steel ladle repair material layer 4, and connect multiple repair bricks 6 to form a whole;

[0031] 5. After the construction work is completed, the baking curve remains unchanged, and the existing baking system is maintained for baking and shaping.

[0032] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of the claims of this patent application.

Claims

1. A structure for repairing a working lining of a ladle shell, comprising a ladle body (1) having a working lining (2) built on the inner wall of said ladle body (1), characterized in that, At least a part of the working lining (2) is immersed in the molten steel in the molten pool area, the working lining (2) eroded by the molten steel is the working lining to be repaired (3), the side wall of the working lining to be repaired (3) in contact with the molten steel is provided with a repairing brick layer (5), the repairing brick layer (5) and the working lining to be repaired (3) are filled with a layer of viscous ladle repairing material (4), and the repairing brick layer (5) is adhered to the working lining to be repaired (3) through the layer of viscous ladle repairing material (4).

2. The working lining repair structure for a ladle wall according to claim 1, characterized by One end of the repairing brick layer (5) is connected with the bottom wall of the ladle body (1) and extends to the bottom wall of the ladle body (1), and the other end of the repairing brick layer (5) is connected with the working lining (2) outside the molten pool area.

3. The working lining repair structure for a ladle wall according to claim 1, wherein The thickness of the layer of viscous ladle repairing material (4) is less than or equal to 30 mm.

4. The working lining repair structure for a ladle wall according to claim 1, wherein The thickness of the repairing brick layer (5) is 19.5-70.5 mm.

5. The working lining repair structure for a ladle wall according to claim 1, wherein The thickness of the working lining to be repaired (3) is 30%-70% of the thickness of the working lining (2).

6. A steel ladle lining working patch repair structure according to claim 5, characterised in that, The thickness of the working lining (2) is 160-230 mm.

7. A patch structure for a working lining of a ladle wall according to any one of claims 1 to 6, characterized in that The repairing brick layer (5) comprises two or more repairing bricks (6), the two or more repairing bricks (6) are connected with each other to form the repairing brick layer (5), and the repairing brick (6) is a carbon-free brick or a carbon-containing machine-pressed brick.

8. The working lining repair structure for a ladle wall according to claim 7, characterized by The length L1 of the repairing brick (6) is 229-231 mm, the height L2 is 114-116 mm, and the width L3 is 19.5-70.5 mm.

9. The working lining repair structure for a ladle wall according to claim 8, characterized by The plane surrounded by the length edge and the height edge of the repairing brick (6) is a first plane (61), the plane surrounded by the height edge and the width edge of the repairing brick (6) is a second plane (62), and the plane surrounded by the width edge and the length edge of the repairing brick (6) is a third plane (63); the bottom wall of the ladle body (1) is provided with the repairing brick (6), one of the first planes (61) of the repairing brick (6) provided on the bottom wall is connected with the bottom wall of the ladle body (1) through the layer of viscous ladle repairing material (4), one of the second planes (62) is connected with the working lining to be repaired (3) through the layer of viscous ladle repairing material (4), and the third planes (63) of two adjacent repairing bricks (6) are connected with each other.

10. The working lining repair structure of a ladle wall according to claim 9, wherein The repairing brick (6) is provided on the working lining to be repaired (3), one of the first planes (61) of the repairing brick (6) provided on the working lining to be repaired (3) is connected with the working lining to be repaired (3) through the layer of viscous ladle repairing material (4), and the other first plane (61) is in contact with the molten steel.

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