Tundish with side filtering structure

Abstract

The utility model relates to the technical field of new materials, and discloses a tundish with a side filtering structure, which comprises a tundish body and a filtering part arranged in the tundish body, the filtering part comprises a filtering plate, the filtering plate is adaptively arranged in the tundish body, the filtering plate consists of a filtering bottom plate and a side filtering ring plate, and the side filtering ring plate is arranged in the tundish body. The bottom of the filter ring plate is integrally connected with the filter bottom plate, and the filter ring plate surrounds the peripheral wall of the tundish body. By arranging the side filtering structure and the specially designed filtering cavity seat, molten steel can be purified for multiple times in the flowing process, so that the quality of the molten steel is improved; besides, due to the existence of the side filtering structure, impurities in the molten steel can be more fully intercepted and adsorbed, the filtering effect of the tundish is further optimized, the overall design ensures that the impurities are continuously and effectively removed in the whole process that the molten steel passes through the tundish, and the service life of the tundish is prolonged. Therefore, cleaner and higher-quality molten steel is provided for the downstream continuous casting process.

Description

Technical Field

[0001] This utility model relates to the field of new materials technology, specifically to an intermediate package with a side filter structure. Background Technology

[0002] Refractory materials are materials that can maintain good physical and chemical properties at high temperatures and are not easily oxidized or corroded. They play a crucial role in the melting and heating processes of materials in industries such as metallurgy, chemical engineering, ceramics, machinery, and glass.

[0003] As an important piece of equipment for the secondary refining of molten steel, the optimization of the internal structure of the tundish is crucial to improving the quality of molten steel. Currently, the traditional tundish design mainly focuses on the performance of refractory materials and the rationality of the structure. However, the traditional tundish has certain limitations in filtering impurities, which can easily lead to incomplete filtration and affect the purity of the molten steel.

[0004] To address this problem, this invention proposes a tundish with a side-filter structure, which enables more effective impurity filtration during the secondary refining process of molten steel. By introducing a filter layer laterally, the molten steel undergoes multiple filtrations during its flow, thereby significantly improving the purity of the steel. Summary of the Invention

[0005] The purpose of this invention is to provide a tundish with a side-filter structure, which solves the technical problem that traditional tundishes have certain limitations in filtering impurities, which can easily lead to incomplete filtration and insufficient purity of molten steel, thereby achieving the goal of improving the purity of molten steel.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an intermediate package with a side filter structure, comprising an intermediate package body and a filter component disposed therein, the filter component comprising a filter plate adapted to be disposed inside the intermediate package body, the filter plate being composed of a filter base plate and a side filter ring plate, the bottom of the filter ring plate being integrally connected to the filter base plate, the filter ring plate surrounding the peripheral wall of the intermediate package body;

[0007] The bottom of the intermediate ladle is designed as a funnel-shaped outlet to facilitate the smooth flow of molten steel. A ceramic filter is connected to the funnel-shaped outlet. The ceramic filter includes an inlet filter cover connected to the funnel-shaped outlet. A filter cover is installed at the bottom of the inlet filter cover. The outer wall of the filter cover is connected to a filter chamber by a threaded seal. The surface of the filter cover is provided with filter holes of different sizes at equal intervals around its circumference. An integrated filter nozzle is provided at the bottom of the filter chamber.

[0008] Preferably, a stepped protrusion structure one is formed between the top of the filter ring plate and the intermediate package, and a stepped protrusion structure two is formed between the outside of the filter base plate and the intermediate package. A flow channel is formed between the stepped protrusion structure one, the stepped protrusion structure two and the intermediate package. Micropore structures are provided at equal intervals on the filter base plate, the side filter ring plate and the stepped protrusion structure two.

[0009] Preferably, the filter component further includes an inclined downward flow platform integrally connected to the inner wall of the intermediate ladle. A filter chamber seat is integrally installed at the middle position of the inclined downward flow platform, and the filter chamber seat has a flow path inside. The flow path is made of magnesium-calcium material. The magnesium-calcium material can significantly reduce the oxygen and sulfur content in the molten steel and reduce the inclusion index. It can not only effectively block slag in the molten steel, but also adsorb some inclusions and further purify the molten steel.

[0010] Preferably, the top circumference of the filter chamber seat is provided with segmented arc-shaped filter grooves A at equal intervals, and the bottom of the filter chamber seat is provided with a single-section arc-shaped filter groove A. The segmented arc-shaped filter grooves A and the single-section arc-shaped filter groove A are connected through a flow path inside the filter chamber seat.

[0011] Preferably, a filter chamber seat two is installed inside the filter chamber liner. The filter chamber seat two has a flow path two inside. This path is made of silicon-manganese alloy material. The silicon and manganese elements in the silicon-manganese alloy have a strong affinity for oxygen and sulfur, which can effectively remove oxygen and sulfur from the molten steel. At the same time, the silicon-manganese alloy can also improve the strength and hardness of the steel, and improve the microstructure and mechanical properties of the steel.

[0012] Preferably, the bottom circumference of the filter chamber seat two is provided with segmented arc-shaped filter grooves B at equal intervals, and the top of the filter chamber seat two is sealed with a filter cover plate, and the filter cover plate is provided with a segmented arc-shaped filter groove B. The segmented arc-shaped filter groove B and the segmented arc-shaped filter groove B are connected through the flow path two inside the filter chamber seat two.

[0013] This invention provides an intermediate package with a side-filtering structure. It has the following beneficial effects:

[0014] (1) By setting a side filter structure and a specially designed filter chamber seat, the molten steel can be purified multiple times during the flow process, thereby improving the quality of the molten steel. In addition, due to the existence of the side filter structure, impurities in the molten steel can be intercepted and adsorbed more fully, further optimizing the filtration effect of the tundish. The overall design ensures that impurities are continuously and effectively removed during the entire process of the molten steel passing through the tundish, thereby providing cleaner and higher quality molten steel for the downstream continuous casting process.

[0015] (2) By setting up a ceramic filter, the filter chamber seat two inside the present invention has a flow path two. The design concept of the path is the same as that of the path one. It uses silicon manganese alloy material. When the molten steel flows through, it forms a stable vortex, which increases the contact time between impurities and the path two, thereby more effectively removing oxides and sulfides from the molten steel. This design not only improves the filtration efficiency, but also utilizes the characteristics of silicon manganese alloy to further optimize the chemical composition of the molten steel. Attached Figure Description

[0016] Figure 1 This is a perspective view of the overall structure of this utility model;

[0017] Figure 2 This is a bottom view of the overall structure of this utility model;

[0018] Figure 3 This is a structural view of the filter plate of this utility model;

[0019] Figure 4 This is a cross-sectional view of the overall structure of this utility model;

[0020] Figure 5 This utility model Figure 4 A magnified view of A in the middle.

[0021] In the diagram: intermediate package 21, filter plate 31, filter base plate 311, filter ring plate 312, stepped protrusion structure one 313, stepped protrusion structure two 314, inclined downward flow platform 32, cavity seat one 33, segmented arc-shaped filter tank A34, one-stage arc-shaped filter tank A35, ceramic filter 4, liquid inlet filter cover 41, filter cover 42, filter chamber 43, filter cover plate 44, one-stage arc-shaped filter tank B45, filter chamber seat two 46, segmented arc-shaped filter tank B47, integrated filter nozzle 48. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. Example 1:

[0024] Based on the limitations of existing traditional tundishes in filtering impurities, which can easily lead to incomplete filtration and insufficient purity of molten steel, this utility model provides a preferred embodiment of a tundish with a side filtration structure, for example... Figure 1-5 As shown: An intermediate package with a side filtration structure includes an intermediate package body 21 and a filter component disposed therein. The filter component includes a filter plate 31, which is adapted to be disposed inside the intermediate package body 21. The filter plate 31 is composed of a filter base plate 311 and a side filter ring plate 312. The bottom of the filter ring plate 312 is integrally connected to the filter base plate 311, and the filter ring plate 312 surrounds the peripheral wall of the intermediate package body 21. A stepped protrusion structure 313 is formed between the top of the filter ring plate 312 and the intermediate package body 21. A stepped protrusion structure 314 is formed between the outer side of the filter base plate 311 and the intermediate package 21. A flow path is formed between the stepped protrusion structure 313, the stepped protrusion structure 314 and the intermediate package 21. Micropore structures are provided at equal intervals on the filter base plate 311, the side filter ring plate 312 and the stepped protrusion structure 314. Molten steel can be initially filtered by the filter base plate 311 and flow down, or it can be filtered by the side filter ring plate 312 and then flow down through the micropore structure in the stepped protrusion structure 314 along the flow path.

[0025] The filter component also includes a downward-sloping flow platform 32 integrally connected to the inner wall of the intermediate cladding 21. A filter chamber seat 33 is integrally installed at the center of the downward-sloping flow platform 32, and the filter chamber seat 33 has an internal flow path. The flow path is made of magnesium-calcium material, which significantly reduces the oxygen and sulfur content in the molten steel and lowers the inclusion index. It not only effectively blocks slag in the molten steel but also adsorbs some inclusions, further purifying the molten steel. The filter chamber seat 33... The top circumference is provided with segmented arc-shaped filter channels A34 at equal intervals, and the bottom of the filter cavity seat 33 is provided with a single-section arc-shaped filter channel A35. The segmented arc-shaped filter channels A34 and the single-section arc-shaped filter channel A35 are connected through the flow path 1 inside the filter cavity seat 33. When molten steel flows into the filter cavity seat 33 from the inclined downward flow platform 32, it first passes through the segmented arc-shaped filter channels A34 and enters the flow path 1 evenly, and finally flows out from the single-section arc-shaped filter channel A35, effectively separating the impurities mixed in the molten steel.

[0026] In this embodiment, by setting a filter chamber seat 33, the flow path 1 in the filter chamber seat 33 is made of magnesium-calcium material. The design of this path 1 helps the molten steel to form a stable vortex when it flows through, increasing the contact time between impurities and magnesium-calcium material, thereby improving the filtration effect and increasing the purity of the molten steel. The reasonable design of the segmented arc-shaped filter tank A34 and the single-section arc-shaped filter tank A35 ensures the uniform distribution of molten steel during the flow process and the effective capture of impurities, making the molten steel quality more uniform and pure.

[0027] Furthermore, the shape design of the filter chamber seat 33 matches the tilt angle of the downward-sloping flow platform 32, ensuring smoother flow of molten steel and reducing turbulence in the molten steel. The perfect combination of the filter chamber seat 33 and the downward-sloping flow platform 32 constitutes a precise molten steel purification system. This design can not only effectively reduce the content of non-metallic inclusions in molten steel, but also improve the temperature uniformity of molten steel during the casting process, reduce casting defects, and ensure the stability of casting quality. Example 2:

[0028] Please see Figures 1-5 Furthermore, based on Embodiment 1, the following is obtained: the bottom of the intermediate ladle 21 is set as a funnel-shaped outlet to facilitate the smooth flow of molten steel. A ceramic filter 4 is connected to the funnel-shaped outlet. The ceramic filter 4 includes an inlet filter cover 41 connected to the funnel-shaped outlet. A filter cover 42 is installed at the bottom of the inlet filter cover 41. A filter chamber 43 is connected to the outer wall of the filter cover 42 by a threaded seal. The surface of the filter cover 42 is provided with filter holes of different sizes at equal intervals around the circumference. An integrated filter nozzle 48 is provided at the bottom of the filter chamber 43.

[0029] The filter chamber 43 contains a filter chamber seat 46, which has a flow path 2. This flow path is made of silicon-manganese alloy. The silicon and manganese elements in the silicon-manganese alloy have a strong affinity for oxygen and sulfur, effectively removing oxygen and sulfur from the molten steel. Simultaneously, the silicon-manganese alloy also improves the strength and hardness of the steel, and enhances its microstructure and mechanical properties. The bottom circumference of the filter chamber seat 46 is provided with segmented arc-shaped filter grooves B47 at equal intervals. The top of the filter chamber seat 46 is sealed. The filter has a filter cover plate 44, on which a single-section arc-shaped filter groove B45 is provided. The single-section arc-shaped filter groove B45 and the segmented arc-shaped filter groove B47 are connected through a flow path two inside the filter chamber seat two 46. After the molten steel is filtered through the filter hole structure provided on the filter cover 42, it enters the filter chamber seat two 46 from the single-section arc-shaped filter groove B45 on the filter cover plate 44, flows evenly down from the segmented arc-shaped filter groove B47 after passing through the flow path two, and finally flows out of the integrated filter nozzle 48. The entire filtration process is carried out in a high-temperature environment, ensuring that the temperature of the molten steel is maintained and avoiding quality loss caused by temperature drop during the filtration process.

[0030] In this embodiment, by setting a ceramic filter 4, the filter chamber seat 46 inside has a flow path 2. This path is designed in the same way as path 1 and uses silicon manganese alloy material. When the molten steel flows through it, it forms a stable vortex, which increases the contact time between impurities and path 2, thereby more effectively removing oxides and sulfides from the molten steel. This design not only improves the filtration efficiency, but also utilizes the properties of silicon manganese alloy to further optimize the chemical composition of the molten steel.

[0031] When in use, molten steel first flows down from the tundish 21, is initially filtered by the filter bottom plate 311, and is simultaneously filtered by the side filter ring plate 312. Then, it flows down through the microporous structure in the stepped protrusion structure 314 along the flow path channel. When it flows into the filter chamber seat 33 through the inclined downward flow platform 32, it first passes through the segmented arc-shaped filter tank A34 and enters the flow path 1 evenly. Finally, it flows out from the single-section arc-shaped filter tank A35, effectively separating the impurities mixed in the molten steel.

[0032] Then it flows into the ceramic filter 4. After being filtered through the filter holes on the filter cover 42, the molten steel enters the filter chamber seat 46 from the segmented arc-shaped filter channel B45 on the filter cover plate 44. After passing through the second flow path, it flows down evenly from the segmented arc-shaped filter channel B47 and finally flows out from the integrated filter nozzle 48. The quality of the molten steel obtained is significantly improved, which meets the production requirements of high-performance steel.

[0033] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An intermediate package with a side-filtering structure, comprising an intermediate package body (21) and a filter element disposed therein, characterized in that: The filter component includes a filter plate (31), which is adapted to be placed inside the intermediate package (21). The filter plate (31) is composed of a filter base plate (311) and a side filter ring plate (312). The bottom of the filter ring plate (312) is integrally connected to the filter base plate (311), and the filter ring plate (312) surrounds the peripheral wall of the intermediate package (21). The bottom of the intermediate package (21) is provided with a funnel-shaped outlet to facilitate the smooth flow of molten steel. The funnel-shaped outlet is connected to a ceramic filter (4). The ceramic filter (4) includes an inlet filter cover (41) connected to the funnel-shaped outlet. The bottom of the inlet filter cover (41) is equipped with a filter cover (42). The outer wall of the filter cover (42) is connected to a filter chamber (43) by a threaded seal. The surface of the filter cover (42) is provided with filter holes of different sizes at equal intervals around the circumference. The bottom of the filter chamber (43) is provided with an integrated filter nozzle (48).

2. The intermediate package with a side-filtering structure according to claim 1, characterized in that: A stepped protrusion structure 1 (313) is formed between the top of the filter ring plate (312) and the intermediate package (21), and a stepped protrusion structure 2 (314) is formed between the outside of the filter bottom plate (311) and the intermediate package (21). A flow path channel is formed between the stepped protrusion structure 1 (313), the stepped protrusion structure 2 (314) and the intermediate package (21). Micropore structures are provided at equal intervals on the filter bottom plate (311), the side filter ring plate (312) and the stepped protrusion structure 2 (314).

3. The intermediate package with a side-filtering structure according to claim 1, characterized in that: The filter component also includes an inclined downward flow platform (32) integrally connected to the inner wall of the intermediate package (21). A filter chamber seat (33) is integrally installed at the middle position of the inclined downward flow platform (32), and the filter chamber seat (33) has a flow path inside, which is made of magnesium-calcium material.

4. The intermediate package with a side-filtering structure according to claim 3, characterized in that: The top circumference of the filter chamber seat (33) is provided with segmented arc-shaped filter grooves A (34) at equal intervals, and the bottom of the filter chamber seat (33) is provided with a single arc-shaped filter groove A (35). The segmented arc-shaped filter grooves A (34) and the single arc-shaped filter groove A (35) are connected through the flow path inside the filter chamber seat (33).

5. An intermediate package with a side-filtering structure according to claim 1, characterized in that: The filter chamber (43) is equipped with a filter chamber seat (46), which has a flow path (2) inside, and the path is made of silicon-manganese alloy material.

6. An intermediate package with a side-filtering structure according to claim 5, characterized in that: The bottom circumference of the filter chamber seat 2 (46) is provided with segmented arc-shaped filter grooves B (47) at equal intervals. The top of the filter chamber seat 2 (46) is sealed with a filter cover plate (44), and a segmented arc-shaped filter groove B (45) is provided on the filter cover plate (44). The segmented arc-shaped filter groove B (45) and the segmented arc-shaped filter groove B (47) are connected through the flow path 2 inside the filter chamber seat 2 (46).

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