Cast tube brick

Abstract

The utility model discloses a cast tube brick, which belongs to the field of refractory bricks and is characterized in that the cast tube brick is provided with an upper butt joint section, a flow distribution section, an overflow section and a lower butt joint section, and each section can be butt-jointed, disassembled and assembled through a preset standard concave edge and a preset standard convex edge. According to the cast tube brick, the volume of each part can be reduced, the cast tube brick is convenient to produce and manufacture, modular disassembly and assembly can be realized, and meanwhile, due to the structural design of a conical flow distribution cover and an overflow column in the flow distribution section and the overflow section, molten steel can be firstly distributed into an overflow cavity by the conical flow distribution cover during flowing; and then the molten steel flows out through the top of the overflow column and the overflow channel, the inner diameter structure of the cast tube brick is changed, the flow speed of the molten steel can be effectively changed, meanwhile, due to the segmented structural design, production forming of the internal structures of the flow distribution section and the overflow section is greatly facilitated, the forming difficulty is reduced, and the actual production requirement is better met.

Description

Technical Field

[0001] The utility model relates to the field of refractory bricks, and more particularly to a cast tube brick. Background Art

[0002] In the continuous steel casting process, cast pipe bricks play a vital role in the shaping of molten steel. The flow state of molten steel in the cast pipe bricks directly affects the quality of the ingot and the stability of the entire casting process.

[0003] Currently, traditional cast pipe bricks typically utilize a single inner diameter structure. Once molten steel enters the brick, its flow rate changes relatively uniformly, making it difficult to regulate the flow. For example, when a large flow of molten steel enters, the subsequent flow rate cannot be effectively moderated. While attempts have been made to improve the inner diameter structure of cast pipe bricks in the related art, the complexity of these improved structures hinders the smooth manufacturing and forming of these improved cast steel bricks. Therefore, we have proposed a cast pipe brick to address these issues. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] In response to the problems existing in the prior art, the purpose of the present invention is to provide a cast pipe brick, which is divided into an upper docking section, a flow distribution section, an overflow section and a lower docking section, and each section can be docked and disassembled by preset standard concave edges and convex edges, so that the cast pipe brick can not only reduce the volume of each part and facilitate production and manufacturing, but also realize modular disassembly and assembly, thereby improving the convenience during installation and use; at the same time, the structural design of the conical flow distribution cover and the overflow column inside the flow distribution section and the overflow section can make the molten steel first be distributed to the inside of the overflow chamber by the conical flow distribution cover, and then flow out through the top of the overflow column and the overflow channel, thereby changing the inner diameter structure of the cast pipe brick, effectively changing the flow rate of the molten steel, and avoiding a large amount of molten steel from directly impacting the flow through the channel inside the cast pipe brick, thereby greatly improving the quality of the ingot and the stability of the entire casting process; at the same time, the segmented structural design greatly facilitates the production and molding of the internal structure of the flow distribution section and the overflow section, reduces the molding difficulty, and is more in line with actual production needs.

[0006] 2. Technical solution

[0007] In order to solve the above problems, the present invention adopts the following technical solutions.

[0008] A cast pipe brick comprises an upper butt joint section, a flow distribution section, an overflow section, and a lower butt joint section, wherein the upper butt joint section and the lower butt joint section have the same structure, and the tops of the upper butt joint section, the flow distribution section, the overflow section, and the lower butt joint section are all provided with raised edges, and the bottoms of the upper butt joint section, the flow distribution section, the overflow section, and the lower butt joint section are all provided with concave edges, and the outer shapes and structures of the raised edges and the concave edges match each other, and the upper butt joint section, the flow distribution section, the overflow section, and the lower butt joint section are spliced ​​together by corresponding concave edges and raised edges;

[0009] A pouring channel is provided inside the upper docking section, and the top and bottom of the pouring channel respectively penetrate the center positions of the raised edge and the concave edge.

[0010] Furthermore, an upper opening 1 and a lower opening are respectively provided at the center positions of the raised edge and the concave edge on the distribution section, and the diameters of the upper opening 1, the lower opening and the inner wall of the casting channel are all equal. An open chamber is provided inside the distribution section, and the top and bottom of the open chamber are respectively connected to the upper opening 1 and the lower opening, and the diameter of the inner wall of the open chamber is larger than the diameter of the inner wall of the upper opening 1.

[0011] Furthermore, a conical flow distribution hood is provided inside the open chamber, the cone tip of the top of the conical flow distribution hood and the edge of the bottom are parallel to the opening surfaces of the upper opening and the lower opening respectively, and the outer wall of the edge of the bottom of the conical flow distribution hood is fixedly connected to the inner wall of the lower opening through a group of connecting rod segments.

[0012] Furthermore, an upper opening 2 is provided at the center position of the raised edge on the overflow section, and the inner wall diameter of the upper opening 2 is equal to the inner wall diameter of the upper opening 1. An overflow chamber is also provided inside the overflow section, and the inner wall diameter of the overflow chamber is larger than the inner wall diameter of the upper opening 2. An overflow column is fixedly connected to the center position of the bottom of the inner wall of the overflow chamber, and an overflow channel is provided inside the overflow column. The top of the overflow channel is connected to the inside of the overflow chamber, and the bottom of the overflow channel extends to the bottom of the overflow section. The height of the overflow column is less than the height of the inner wall of the overflow chamber, and the outer wall diameter of the overflow column is equal to the outer wall diameter of the edge of the bottom of the conical flow cover.

[0013] Furthermore, the upper docking section, the flow distribution section, the overflow section and the lower docking section are all cylindrical structures formed by high-temperature integral calcination, and the surfaces of the upper docking section, the flow distribution section, the overflow section and the lower docking section are smooth and free of burrs.

[0014] 3. Beneficial effects

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] (1) This solution, by arranging the cast pipe brick into an upper docking section, a flow distribution section, an overflow section, and a lower docking section, and each section can be docked and disassembled by preset standard concave edges and convex edges, so that the cast pipe brick can not only reduce the volume of each part and facilitate production and manufacturing, but also realize modular disassembly and assembly, thereby improving the convenience of installation and use;

[0017] (2) In this solution, the structural design of the conical distribution hood and overflow column inside the distribution section and the overflow section can make the molten steel first be distributed to the inside of the overflow chamber by the conical distribution hood, and then flow out through the top of the overflow column and the overflow channel, thereby changing the inner diameter structure of the cast pipe brick, effectively changing the flow rate of the molten steel, and avoiding a large amount of molten steel from directly impacting the flow through the channel inside the cast pipe brick, greatly improving the quality of the ingot and the stability of the entire casting process. At the same time, the segmented structural design greatly facilitates the production and molding of the internal structure of the distribution section and the overflow section, reduces the molding difficulty, and is more in line with actual production needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the cast pipe brick of the present invention;

[0019] Figure 2 This is a schematic diagram of the overall cross-sectional structure of the cast pipe brick of the present invention;

[0020] Figure 3 This is a schematic diagram of the split top structure of the cast pipe brick of the present invention;

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the cast pipe brick of the present invention;

[0022] Figure 5 This is a schematic diagram of the split bottom structure of the cast pipe brick of the present invention.

[0023] Description of the numbers in the figure:

[0024] 1. Upper docking section; 101. Casting channel;

[0025] 2. Flow distribution section; 201. Upper opening 1; 202. Lower opening; 203. Open chamber; 204. Conical flow distribution hood; 205. Connecting rod section;

[0026] 3. Overflow section; 301. Upper opening 2; 302. Overflow chamber; 303. Overflow column; 3031. Overflow channel;

[0027] 4. Lower docking section;

[0028] 5. Raised edges;

[0029] 6. Concave edge. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the specification of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0031] Example 1:

[0032] See also Figure 1-Figure 5 A cast pipe brick comprises an upper butt joint section 1, a flow distribution section 2, an overflow section 3 and a lower butt joint section 4. The upper butt joint section 1 and the lower butt joint section 4 have the same structure, and the tops of the upper butt joint section 1, the flow distribution section 2, the overflow section 3 and the lower butt joint section 4 are all provided with a raised edge 5, and the bottoms of the upper butt joint section 1, the flow distribution section 2, the overflow section 3 and the lower butt joint section 4 are all provided with a concave edge 6, and the outer shapes and structures of the raised edge 5 and the concave edge 6 are matched, and the upper butt joint section 1, the flow distribution section 2, the overflow section 3 and the lower butt joint section 4 are spliced ​​by the corresponding concave edges 6 and the raised edges 5;

[0033] A pouring channel 101 is provided inside the upper docking section 1, and the top and bottom of the pouring channel 101 respectively penetrate the center of the raised edge 5 and the concave edge 6;

[0034] An upper opening 201 and a lower opening 202 are respectively provided at the center of the raised edge 5 and the concave edge 6 on the flow distribution section 2. The diameters of the inner walls of the upper opening 201, the lower opening 202 and the casting channel 101 are all equal. An open chamber 203 is provided inside the flow distribution section 2. The top and bottom of the open chamber 203 are respectively connected to the upper opening 201 and the lower opening 202. The inner wall diameter of the open chamber 203 is larger than the inner wall diameter of the upper opening 201. A conical flow distribution cover 204 is provided inside the open chamber 203. The cone tip at the top and the edge at the bottom of the conical flow distribution cover 204 are respectively parallel to the opening surfaces of the upper opening 201 and the lower opening 202, and the outer edge wall of the bottom of the conical flow distribution cover 204 is fixedly connected to the inner wall of the lower opening 202 via a group of connecting rod sections 205.

[0035] An upper opening 2 301 is provided at the center of the raised edge 5 on the overflow section 3. The inner wall diameter of the upper opening 201 is equal to the inner wall diameter of the upper opening 1 201. An overflow chamber 302 is also provided inside the overflow section 3. The inner wall diameter of the overflow chamber 302 is larger than the inner wall diameter of the upper opening 2 301. An overflow column 303 is fixedly connected to the center of the bottom of the inner wall of the overflow chamber 302. An overflow channel 3031 is provided inside the overflow column 303. The top of the overflow channel 3031 is connected to the inside of the overflow chamber 302, and the bottom of the overflow channel 3031 extends to the bottom of the overflow section 3. The height of the overflow column 303 is less than the height of the inner wall of the overflow chamber 302, and the outer wall diameter of the overflow column 303 is equal to the outer wall diameter of the edge of the bottom of the conical flow distribution hood 204.

[0036] The use principle of this kind of cast pipe brick:

[0037] First, the upper docking section 1, the flow section 2, the overflow section 3 and the lower docking section 4 are modularly spliced ​​through the corresponding concave edges 6 and convex edges 5 to form a complete cast tube brick structure. When the molten steel is poured through the pouring channel 101 of the upper docking section 1, the molten steel enters the open chamber 203 of the flow section 2 through the upper opening 1 201, and contacts the outer wall of the conical flow cover 204 for flow distribution. Then, the molten steel enters the upper opening 2 301 along the outer edge of the bottom of the conical flow cover 204 and the lower opening 202, and flows into the overflow chamber 302 for initial accumulation. At this time, as the liquid level continues to rise, when the liquid level is higher than the top of the overflow column 303, the molten steel flows downward through the overflow channel 3031, and then flows out along the pouring channel 101 of the lower docking section 4. At this time, the slow pouring process of the molten steel is completed.

[0038] Example 2:

[0039] In view of the above embodiment 1, for further description, refer to Figure 1-Figure 5 The upper docking section 1, the flow distribution section 2, the overflow section 3 and the lower docking section 4 are all cylindrical structures formed by high-temperature integral calcination, and the surfaces of the upper docking section 1, the flow distribution section 2, the overflow section 3 and the lower docking section 4 are smooth and free of burrs.

[0040] The upper docking section 1, the flow distribution section 2, the overflow section 3, and the lower docking section 4 are all cylindrical structures formed by high-temperature integral calcination, which can make the integrity of each section stronger. At the same time, the separate molding structure of each section facilitates the molding of the internal structure of each section, reduces the molding difficulty, and is conducive to production and manufacturing.

[0041] The upper butt joint section 1, the flow distribution section 2, the overflow section 3 and the lower butt joint section 4 have smooth and burr-free surfaces, making the surface of the cast pipe brick smoother and reducing the phenomenon of molten steel hanging on the wall;

[0042] By making the diameters of the inner walls of the upper opening 201, the lower opening 202 and the casting channel 101 equal, and the inner diameter of the upper opening 2 301 being equal to the inner diameter of the upper opening 201, the sizes of the docking openings can be made more consistent, reducing the phenomenon of stepped cross-section interference and avoiding interference with the flow of molten steel.

[0043] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed in the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A cast pipe brick comprising an upper butt joint section (1), a flow distribution section (2), an overflow section (3) and a lower butt joint section (4), characterized in that: The upper docking section (1) and the lower docking section (4) have the same structure, and the tops of the upper docking section (1), the flow distribution section (2), the overflow section (3) and the lower docking section (4) are all provided with raised edges (5), and the bottoms of the upper docking section (1), the flow distribution section (2), the overflow section (3) and the lower docking section (4) are all provided with concave edges (6), and the outer shapes of the raised edges (5) and the concave edges (6) are matched, and the upper docking section (1), the flow distribution section (2), the overflow section (3) and the lower docking section (4) are spliced ​​together by corresponding concave edges (6) and raised edges (5); A pouring channel (101) is provided inside the upper docking section (1), and the top and bottom of the pouring channel (101) respectively penetrate the center positions of the raised edge (5) and the concave edge (6).

2. The cast pipe brick according to claim 1, characterized in that: An upper opening (201) and a lower opening (202) are respectively provided at the center of the raised edge (5) and the concave edge (6) on the distribution section (2); the diameters of the upper opening (201), the lower opening (202) and the inner wall of the casting channel (101) are all equal; an open chamber (203) is provided inside the distribution section (2); the top and bottom of the open chamber (203) are respectively connected to the upper opening (201) and the lower opening (202); the inner wall diameter of the open chamber (203) is larger than the inner wall diameter of the upper opening (201).

3. The cast pipe brick according to claim 2, characterized in that: A conical flow distribution hood (204) is provided inside the open chamber (203), wherein the cone tip at the top and the edge at the bottom of the conical flow distribution hood (204) are parallel to the opening surfaces of the upper opening (201) and the lower opening (202), respectively, and the outer edge wall of the bottom edge of the conical flow distribution hood (204) is fixedly connected to the inner wall of the lower opening (202) via a group of connecting rod segments (205).

4. The cast pipe brick according to claim 3, characterized in that: A second upper opening (301) is provided at the center of the raised edge (5) on the overflow section (3), and the inner wall diameter of the second upper opening (301) is equal to the inner wall diameter of the first upper opening (201). An overflow chamber (302) is also provided inside the overflow section (3), and the inner wall diameter of the overflow chamber (302) is larger than the inner wall diameter of the second upper opening (301). An overflow column ( 303), an overflow channel (3031) is provided inside the overflow column (303), the top of the overflow channel (3031) is communicated with the inside of the overflow chamber (302), the bottom of the overflow channel (3031) passes through to the bottom of the overflow section (3), the height of the overflow column (303) is less than the height of the inner wall of the overflow chamber (302), and the outer wall diameter of the overflow column (303) is equal to the outer wall diameter of the edge of the bottom of the conical flow distribution cover (204).

5. The cast pipe brick according to claim 1, characterized in that: The upper docking section (1), the flow distribution section (2), the overflow section (3) and the lower docking section (4) are all cylindrical structures formed by high-temperature integral calcination, and the surfaces of the upper docking section (1), the flow distribution section (2), the overflow section (3) and the lower docking section (4) are smooth and free of burrs.

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