Torpedo ladle masonry structure and torpedo ladle

Abstract

The utility model discloses a torpedo ladle masonry structure and a torpedo ladle, and belongs to the technical field of torpedo ladle refractory materials. The masonry structure comprises a concentric-square-shaped masonry structure composed of an inner opening masonry structure and an outer opening masonry structure, the inner opening masonry structure is formed by building first aluminum silicon carbide carbon bricks and second aluminum silicon carbide carbon bricks in a staggered joint mode, and the outer opening masonry structure is formed by building the first aluminum silicon carbide carbon bricks; the inner opening masonry structure is located in a positive impact area of the torpedo ladle, the outer opening masonry structure is located in a non-positive impact area of the torpedo ladle, the area of the area where the inner opening masonry structure is located accounts for 1 / 3-1 / 2 of the whole impact area, and the area of the area where the outer opening masonry structure is located accounts for 1 / 2-2 / 3 of the whole impact area. The masonry structure is safe, the maintenance and replacement method is simple and convenient, the cost is low, and on the premise that safe use of the torpedo ladle is guaranteed, the maintenance cost is reduced by 40-50%, and the labor intensity is reduced by 30-40%.

Description

Technical Field

[0001] The utility model belongs to the technical field of torpedo ladle refractory materials, and particularly relates to a torpedo ladle masonry structure and a torpedo ladle. Background Technique

[0002] The main function of the torpedo ladle is to load and transport molten iron, which is a key equipment connecting the iron plant and the steel mill. During repeated use, the bricks in the impact area of the torpedo ladle are severely scoured by the molten iron flowing down from the swinging nozzle and strongly impacted by adding scrap steel, resulting in serious damage to the bricks at the positive impact point in the straight barrel section of the impact area. The service life is 600 times, and the residual thickness is less than 200 mm (the original brick thickness is 380 mm). The residual thickness of the bricks at the non-positive impact point in the impact area is more than 250 mm (the original brick thickness is 380 mm). During medium repair, the residual bricks in this area need to be dug and patched to ensure the overall service life of the torpedo ladle. Since the bricks in the impact area of the torpedo ladle are laid with staggered joints (as Figure 1 shown), damage is caused to the bricks in the non-impact area during the process of removing the residual bricks in the positive impact area, and the bricks in the impact area need to be replaced as a whole. This masonry and maintenance method not only greatly causes waste of materials, increases the labor intensity of workers, but also brings potential safety hazards to the safe operation of the torpedo ladle. Content of the Utility Model

[0003] Aiming at the deficiencies in the prior art, the purpose of the utility model is to provide a torpedo ladle masonry structure and a torpedo ladle. The masonry structure is safe, the maintenance and replacement method is simple, the cost is low. On the premise of ensuring the safe use of the torpedo ladle, the maintenance cost is reduced by 40 - 50%, and the labor intensity is reduced by 30 - 40%.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model provides a torpedo ladle masonry structure, which includes a square frame masonry structure composed of an inner opening masonry structure and an outer opening masonry structure. The inner opening masonry structure is formed by staggering the laying of the first aluminum carbonized silicon carbon bricks and the second aluminum carbonized silicon carbon bricks. The outer opening masonry structure is formed by laying the first aluminum carbonized silicon carbon bricks. The inner opening masonry structure is located in the positive impact area of the torpedo ladle, and the outer opening masonry structure is located in the non-positive impact area of the torpedo ladle. The area of the region where the inner opening masonry structure is located accounts for 1 / 3 - 1 / 2 of the entire impact area, and the area of the region where the outer opening masonry structure is located accounts for 1 / 2 - 2 / 3 of the entire impact area.

[0006] Preferably, the lengths and heights of the first aluminum carbonized silicon carbon bricks and the second aluminum carbonized silicon carbon bricks are the same, and the width of the second aluminum carbonized silicon carbon brick is 1.3 - 1.6 times the width of the first aluminum carbonized silicon carbon brick.

[0007] Preferably, the second aluminum carbonized silicon carbon bricks are distributed on both sides in the width direction of the inner opening masonry structure.

[0008] Preferably, the shape of the inner opening masonry structure is rectangular.

[0009] Preferably, phosphate mortar is filled in the brick joints of both the inner opening masonry structure and the outer opening masonry structure.

[0010] Preferably, the surface of the contact position between the inner opening masonry structure and the outer opening masonry structure is leveled with mullite steel fiber castable.

[0011] Preferably, the outer opening masonry structure is formed by non-staggered joint masonry of first aluminum silicon carbide carbon bricks.

[0012] The present utility model also provides a torpedo ladle, and the torpedo ladle includes the torpedo ladle masonry structure described above.

[0013] Compared with the prior art, the present utility model has the following advantages and beneficial effects:

[0014] 1. By adopting the staggered joint masonry method of first aluminum silicon carbide carbon bricks and second aluminum silicon carbide carbon bricks in the inner opening masonry structure (i.e., the positive impact area of the torpedo ladle), the structural strength and impact resistance of this area are enhanced, thereby improving the overall safety and durability of the torpedo ladle. At the same time, although the outer opening masonry structure adopts non-staggered joint masonry, since it is located in the non-positive impact area, it can not only meet the safe use of the torpedo ladle but also ensure the convenience of maintenance and replacement.

[0015] 2. The design of the present utility model enables the torpedo ladle to only replace the bricks in the "mouth"-shaped inner ring area (i.e., the inner opening masonry structure) of the positive impact area during medium repair, without the need for large-scale dismantling and masonry of the entire torpedo ladle. This local replacement method greatly simplifies the maintenance process, reduces the maintenance cost and labor intensity.

[0016] 3. By adopting different masonry methods and materials in the inner and outer opening areas, the problem that the thickness of the working layer of the bricks outside the newly masonry bricks (bricks not replaced) varies too much can be effectively alleviated, avoiding the phenomenon of broken bricks caused by too large thickness difference, and further ensuring the integrity and stability of the torpedo ladle.

[0017] 4. Compared with the existing maintenance and replacement methods, the maintenance and replacement method of the masonry structure provided by the present utility model has lower cost and higher efficiency. It is estimated that the maintenance cost can be reduced by 40 - 50%, and the labor intensity is reduced by 30 - 40%, thus saving a large amount of economic cost and time cost for the enterprise.

[0018] 5. Through reasonable structural design, such as the inner masonry structure occupies 1 / 3-1 / 2 of the entire impact zone, the outer masonry structure occupies 1 / 2-2 / 3, and the width design of the second aluminum carbide silicon carbon brick, the torpedo tank can maintain better stability and durability when subjected to harsh working conditions such as high temperature, high pressure and impact. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the masonry structure of the torpedo tank impact zone in the prior art.

[0020] Figure 2 It is a structural schematic diagram of the masonry structure of the torpedo tank impact zone of the utility model.

[0021] In the figure: 1-inner opening masonry structure; 2-outer opening masonry structure; 3-first aluminum silicon carbide carbon brick; 4-second aluminum silicon carbide carbon brick; 5-phosphate mortar. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the utility model, the preferred implementation scheme of the utility model is described below in conjunction with specific embodiments. However, it should be understood that the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. In order to better illustrate this embodiment, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted. The positional relationship described in the drawings is only used for illustrative purposes and cannot be understood as a limitation on this patent.

[0023] The utility model is described in further detail below in conjunction with the accompanying drawings to illustrate a torpedo tank masonry structure and a torpedo tank.

[0024] like Figure 2 As shown, this embodiment provides a torpedo tank masonry structure, which is mainly composed of an inner opening masonry structure 1 and an outer opening masonry structure 2, forming a U-shaped layout to optimize the performance of the torpedo tank under extreme working conditions such as impact and high temperature.

[0025] In some examples, the inner mouth masonry structure 1 is directly located in the positive impact zone of the torpedo tank, which is the area that bears the maximum impact force and thermal stress. The structure is staggered with the first aluminum silicon carbide carbon brick 3 and the second aluminum silicon carbide carbon brick 4 to enhance the strength and impact resistance of the structure.

[0026] The length and height of the first aluminum silicon carbide carbon brick 3 and the second aluminum silicon carbide carbon brick 4 are consistent to ensure the neatness and stability of the masonry. The width of the second aluminum silicon carbide carbon brick 4 is designed to be 1.4 times the width of the first aluminum silicon carbide carbon brick 3. This design not only ensures sufficient material strength, but also facilitates staggered masonry and improves the stability of the overall structure.

[0027] During the masonry process, the alternating placement of the first aluminum silicon carbide carbon brick 3 and the second aluminum silicon carbide carbon brick 4 ensures that the joints of each brick do not coincide with the joints of adjacent bricks, forming an effective staggered joint structure. This staggered joint masonry method can effectively disperse the impact force and reduce the breakage of bricks caused by concentrated stress.

[0028] The overall shape of the inner mouth masonry structure 1 is rectangular, and its area accounts for 1 / 3 to 1 / 2 of the entire impact area. The specific ratio is determined according to the actual size and usage requirements of the torpedo ladle.

[0029] In some examples, the outer mouth masonry structure 2 is located in the non-positive impact area of the torpedo ladle. Its main function is to protect the overall structure of the torpedo ladle and facilitate maintenance and replacement. This structure uses the first aluminum silicon carbide carbon brick 3 for non-staggered joint masonry, that is, the joints of all bricks are in the same horizontal or vertical direction. This masonry method greatly simplifies the maintenance process and reduces costs.

[0030] The area occupied by the outer mouth masonry structure 2 is about 1 / 2 to 2 / 3 of the entire impact area, forming a complement with the inner mouth masonry structure 1 and jointly constituting a complete impact protection system for the torpedo ladle.

[0031] Aluminum silicon carbide carbon bricks have good high-temperature stability, erosion resistance, and mechanical strength, and are ideal materials for torpedo ladle masonry. In this embodiment, two specifications of aluminum silicon carbide carbon bricks (i.e., the first aluminum silicon carbide carbon brick 3 and the second aluminum silicon carbide carbon brick 4) are selected to meet the performance requirements of different regions.

[0032] Phosphate mortar 5 is used to fill the brick joints, enhance the bonding force between bricks, and improve the sealing and stability of the overall structure.

[0033] Mullite steel fiber castable is used for surface leveling treatment at the contact position between the inner mouth and the outer mouth masonry structures to improve the integrity and aesthetics of the structure.

[0034] In some examples, the torpedo ladle includes the torpedo ladle masonry structure designed above.

[0035] In some examples, the maintenance and replacement method for the impact area of the torpedo ladle includes the following steps:

[0036] 1) When the torpedo ladle is undergoing medium repair, clean the residue and residual iron on the surface of the bricks in the impact area;

[0037] 2) Demolish the bricks at the positive impact point in the impact area, and keep the outer ring bricks intact, that is, only demolish the residual bricks in the inner mouth area of the double-square shape, and take out the residual bricks according to the conventional method;

[0038] 3) In the removed inner opening area, the first aluminum silicon carbide carbon bricks 3 and the second aluminum silicon carbide carbon bricks 4 of two different models are laid with staggered joints, and the gaps between the bricks are filled and laid with phosphate mortar 5;

[0039] 4) Between the brick bodies in the inner opening area and the outer opening area, mullite steel fiber castable is used for repair to ensure that the surfaces of the two areas are flush.

[0040] 5) After the construction is completed, a comprehensive inspection is carried out on the masonry structure to ensure that there are no omissions or defects. At the same time, necessary performance tests and acceptance work are carried out to ensure the safety and reliability of the torpedo ladle.

[0041] Through the torpedo ladle masonry structure and the maintenance and replacement method provided by this embodiment, the torpedo ladle shows higher stability and durability when withstanding harsh working conditions such as high temperature, high pressure and impact. At the same time, the local replacement method greatly reduces the maintenance cost and labor intensity, and improves the economic benefits and production efficiency of the enterprise. According to the actual test data, the maintenance cost of this masonry structure can be reduced by about 45%, and the labor intensity is reduced by about 35%, achieving the expected design goal.

[0042] Based on the description and drawings of the present invention, those skilled in the art can easily manufacture or use a torpedo ladle masonry structure of the present invention and can produce the positive effects recorded in the present invention.

[0043] Unless otherwise clearly specified and limited, in the present invention, if there are terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the orientation or positional relationship in the present invention are only used for exemplary illustration and cannot be understood as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood by combining the drawings and according to the specific situation.

[0044] Unless otherwise clearly specified and limited, in the present invention, if there are terms such as "set", "connected" and "connected", they 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 directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific situation.

[0045] The above are only the preferred embodiments of the present utility model, but the present utility model is not limited to the above specific embodiments. Those of ordinary skill in the art can make several modifications, supplements or use similar methods for substitution without departing from the principle of the present utility model, and these should also be regarded as the protection scope of the present utility model.

Claims

1. A torpedo ladle masonry structure, characterized in that: It includes a double - square masonry structure composed of an inner - opening masonry structure (1) and an outer - opening masonry structure (2). The inner - opening masonry structure (1) is formed by stagger - joint masonry of a first aluminum - silicon - carbide - carbon brick (3) and a second aluminum - silicon - carbide - carbon brick (4). The outer - opening masonry structure (2) is formed by masonry of the first aluminum - silicon - carbide - carbon brick (3). The inner - opening masonry structure (1) is located in the direct impact area of the torpedo ladle, and the outer - opening masonry structure (2) is located in the non - direct impact area of the torpedo ladle. The area of the region where the inner - opening masonry structure (1) is located accounts for 1 / 3 - 1 / 2 of the entire impact area, and the area of the region where the outer - opening masonry structure (2) is located accounts for 1 / 2 - 2 / 3 of the entire impact area.

2. The torpedo ladle masonry structure according to claim 1, wherein: The first aluminum - silicon - carbide - carbon brick (3) and the second aluminum - silicon - carbide - carbon brick have the same length and height, and the width of the second aluminum - silicon - carbide - carbon brick is 1.3 - 1.6 times the width of the first aluminum - silicon - carbide - carbon brick (3).

3. The torpedo ladle masonry structure according to claim 2, characterized in that: The second aluminum - silicon - carbide - carbon bricks are distributed on both sides in the width direction of the inner - opening masonry structure (1).

4. The torpedo ladle masonry structure according to claim 1, characterized in that: The shape of the inner - opening masonry structure (1) is rectangular.

5. The torpedo ladle masonry structure according to claim 1, characterized in that: Phosphate mortar (5) is filled in the brick joints of both the inner - opening masonry structure (1) and the outer - opening masonry structure (2).

6. The torpedo ladle masonry structure according to claim 1, characterized in that: The surface at the contact position between the inner - opening masonry structure (1) and the outer - opening masonry structure (2) is leveled with mullite steel - fiber castable.

7. The torpedo ladle masonry structure according to claim 1, characterized in that: The outer - opening masonry structure (2) is formed by non - stagger - joint masonry of the first aluminum - silicon - carbide - carbon brick (3).

8. A torpedo ladle, characterized in that: The torpedo ladle includes the torpedo - ladle masonry structure according to any one of claims 1 - 7.

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