High efficiency tube crystallizer

Abstract

The application provides a high-efficiency tubular crystallizer, and relates to the field of crystallizers.The high-efficiency tubular crystallizer comprises a limiting tube, the outer surface of the limiting tube is fixedly connected with an outer tube, the outer surface of the top end of the outer tube is fixedly connected with a water outlet pipe, the inside of the top end of the outer tube is fixedly connected with a second protruding block in a circumferential array, the inner wall of the second protruding block is fixedly connected with the outer surface of the limiting tube, the outer surface of a scraping ring structure is in contact with the inner wall of the outer tube, the inner surface of the scraping ring structure is in contact with the outer surface of the limiting tube, the scraping ring structure is driven to move by a driving device, and the water scale on the outer surface of the limiting tube and the inner wall of the outer tube can be simultaneously scraped and removed, the first protruding block on the upper surface of the supporting column is matched with the second protruding block structure, the first protruding block can be inserted into the gap between adjacent second protruding blocks when the first protruding block moves to the position of the second protruding block, the gap between the first protruding blocks and the gap between the second protruding blocks are cleaned, and the gap is prevented from being blocked to cause poor water flow.

Description

Technical Field

[0001] This utility model relates to the field of crystallizers, and more specifically, to a high-efficiency tubular crystallizer. Background Technology

[0002] In the continuous casting production of metal materials such as steel and non-ferrous metals, the crystallizer, as the core equipment, undertakes the key task of initially solidifying liquid metals such as molten steel into shape. Its performance directly affects the quality of the cast billet, production efficiency and energy consumption level.

[0003] However, in the use of existing technology, because the crystallizer cools the molten steel with coolant, scale easily forms in the cooling water during the heat exchange process due to factors such as water quality and temperature changes. This scale adheres to the inner wall of the cooling channel of the crystallizer, which greatly reduces the heat transfer efficiency and further aggravates the existing problem of insufficient cooling. Insufficient cooling efficiency will lead to uneven growth of the billet shell, which can easily cause defects such as surface cracks and bulging, affecting product quality. Therefore, a high-efficiency tubular crystallizer was proposed. Utility Model Content

[0004] The purpose of this invention is to solve the problem that in the current process of cooling molten steel through a coolant in the crystallizer, scale easily forms in the cooling water due to factors such as water quality and temperature changes during heat exchange. This scale adheres to the inner wall of the cooling channel of the crystallizer, which greatly reduces the heat transfer efficiency and further aggravates the existing problem of insufficient cooling. Insufficient cooling efficiency will lead to uneven growth of the billet shell, which can easily cause defects such as surface cracks and bulging, thus affecting product quality.

[0005] To achieve the aforementioned objectives and address the aforementioned problems, this utility model provides a high-efficiency tubular crystallizer, comprising a limiting tube, an outer tube fixedly connected to the outer surface of the limiting tube, a water outlet pipe fixedly connected to the outer surface of the top end of the outer tube, a second protrusion arranged in a circumferential array fixedly connected to the inner surface of the top end of the outer tube, the inner walls of multiple second protrusions fixedly connected to the outer surface of the limiting tube, a water inlet pipe fixedly connected to the outer surface of the bottom end of the outer tube, a scraper ring sleeved on the outer surface of the limiting tube, the outer surface of the scraper ring contacting the inner wall of the outer tube, a support column arranged in a circumferential array fixedly connected to the upper surface of the scraper ring, a first protrusion fixedly connected to the upper surface of each support column, the shape of the outer tube being adapted to the gap between two second protrusions, and a driving device provided on the outer surface of the limiting tube.

[0006] As a preferred technical solution of this application, the driving device includes a multi-stage electric telescopic rod, the bottom end of which is fixedly connected to the outer surface of the limiting tube, the output end of which is fixedly connected to a limiting block, and the outer surface of the limiting block is fixedly connected to the outer surface of the scraper ring.

[0007] As a preferred technical solution of this application, a storage box is fixedly connected to the top end of the limiting tube, and a partition plate arranged in a linear array is fixedly connected inside the storage box.

[0008] As a preferred technical solution of this application, a motor is fixedly connected to one side of the storage box, and a transmission rod is fixedly connected to the output end of the motor through a coupling.

[0009] As a preferred technical solution of this application, a plurality of stirring plates are fixedly connected to the outer surface of the transmission rod.

[0010] As a preferred technical solution of this application, a support plate is provided at the bottom of the limiting tube, a support frame is fixedly connected to the upper surface of the support plate, and the top of the support frame is fixedly connected to the outer surface of the storage box.

[0011] As a preferred technical solution of this application, a guide block is fixedly connected to the upper surface of the support plate.

[0012] As a preferred technical solution of this application, two limiting frames are fixedly connected to the upper surface of the support plate, and nozzles arranged in a linear pattern are fixedly connected to the surfaces of the two limiting frames. Water injection pipes are fixedly connected to the back of the two limiting frames.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. In the scheme of this application: During use, a scraper ring structure is designed, with its outer surface in contact with the inner wall of the outer tube and its inner surface in contact with the outer surface of the limiting tube. The scraper ring is driven by a drive device to move, which can simultaneously scrape and remove scale from the outer surface of the limiting tube and the inner wall of the outer tube. At the same time, the first protrusion and the second protrusion on the upper surface of the support column are structurally adapted. When the first protrusion moves with the scraper ring to the position of the second protrusion, it can be inserted into the gap between adjacent second protrusions, and at the same time clean the gaps between the first protrusion and the second protrusion, preventing the gaps from being blocked and causing poor water flow. The first and second protrusions arranged in a circumferential array can make the condensate evenly dispersed on the outer surface of the limiting tube, avoiding uneven cooling caused by local flow rate differences of condensate, and ensuring the forming quality of the steel billet.

[0015] 2. In the scheme of this application: during use, multiple linear array partition plates are set in the storage box at the top of the limiting tube, which can not only evenly distribute the incoming molten steel, but also block the entry of large foreign objects, avoid blockage of the storage box, and protect the safety of the device. The transmission rod driven by the motor on one side of the storage box can stir the molten steel through multiple stirring plates on the transmission rod, ensuring uniform molten steel concentration and improving the billet forming quality. Attached Figure Description

[0016] Figure 1A schematic diagram of the high-efficiency tubular crystallizer provided in this application;

[0017] Figure 2 A schematic diagram of the limiting frame in the high-efficiency tubular crystallizer provided in this application;

[0018] Figure 3 A schematic diagram of the material storage box in the high-efficiency tubular crystallizer provided in this application;

[0019] Figure 4 A schematic diagram of the limiting tube in the high-efficiency tubular crystallizer provided in this application;

[0020] Figure 5 A schematic diagram of the scraper ring in the high-efficiency tubular crystallizer provided in this application;

[0021] Figure 6 The high-efficiency tubular crystallizer provided in this application Figure 3 A schematic diagram of the structure at point A in the middle.

[0022] The image shows:

[0023] 1. Support plate; 2. Guide block; 3. Limiting tube; 4. Support frame; 5. Limiting frame; 6. Nozzle; 7. Outer pipe; 8. Water outlet pipe; 9. Water inlet pipe; 10. Storage box; 11. Motor; 12. Divider plate; 13. Transmission rod; 14. Scraper ring; 15. Support column; 16. First protrusion; 17. Limiting block; 18. Second protrusion; 19. Mixing plate; 20. Water injection pipe; 21. Multi-stage electric telescopic rod. Detailed Implementation

[0024] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0025] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0026] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 A high-efficiency tubular crystallizer includes a limiting tube 3, with an outer tube 7 fixedly connected to the outer surface of the limiting tube 3. Cooling water flows through the gap between the outer tube 7 and the limiting tube 3 to cool the limiting tube 3 and the molten steel inside. An outlet pipe 8 is fixedly connected to the outer surface of the top end of the outer tube 7. A second array of protrusions 18 arranged in a circular pattern is fixedly connected to the inside of the top end of the outer tube 7. The second protrusions 18 are used to evenly distribute the cooling water on the outer surface of the limiting tube 3, preventing uneven cooling caused by localized high or low flow velocities, which would affect the billet forming process. The inner walls of the multiple second protrusions 18 are fixedly connected to the outer surface of the limiting tube 3. An inlet pipe 9 is fixedly connected to the outer surface of the bottom end of the outer tube 7. By allowing cooling water to flow from one end of the inlet pipe 9 to the other end of the outlet pipe 8, a certain temperature difference is maintained between the cooling water and the molten steel, thereby improving cooling efficiency.

[0029] Furthermore, such as Figure 3 , Figure 6 As shown, a scraper ring 14 is fitted on the outer surface of the limiting tube 3. The outer surface of the scraper ring 14 is in contact with the inner wall of the outer tube 7. The scraper ring 14 scrapes against the outer surface of the limiting tube 3 and the inner wall of the outer tube 7 to remove scale from the surface of the limiting tube 3 and the inner wall of the outer tube 7. A support column 15 arranged in a circular array is fixedly connected to the upper surface of the scraper ring 14. The multiple support columns 15 disperse the condensate on the outer surface of the limiting tube 3. A first protrusion 16 is fixedly connected to the upper surface of each support column 15. The shape of the outer tube 7 is adapted to the gap between the two second protrusions 18. A driving device is provided on the outer surface of the limiting tube 3.

[0030] Furthermore, such as Figure 3 , Figure 6As shown, the driving device includes a multi-stage electric telescopic rod 21. The bottom end of the multi-stage electric telescopic rod 21 is fixedly connected to the outer surface of the limiting tube 3. The output end of the multi-stage electric telescopic rod 21 is fixedly connected to a limiting block 17. The outer surface of the limiting block 17 is fixedly connected to the outer surface of the scraper ring 14. The multi-stage electric telescopic rod 21 is used to push the limiting block 17, the scraper ring 14 and the first protrusion 16 to move upward. When the first protrusion 16 moves to the position of the second protrusion 18, one first protrusion 16 passes between two second protrusions 18, so as to clean the gap between adjacent second protrusions 18 and adjacent two first protrusions 16, and ensure the flow of water.

[0031] Furthermore, such as Figure 3 , Figure 4 As shown, a storage box 10 is fixedly connected to the top of the limiting tube 3. A partition plate 12 arranged in a linear array is fixedly connected inside the storage box 10. The partition plate 12 serves to distribute the molten steel entering the storage box 10 evenly, while preventing large foreign objects from accidentally entering the storage box 10, blocking the storage box 10, and damaging the device.

[0032] Furthermore, such as Figure 3 , Figure 4 As shown, a motor 11 is fixedly connected to one side of the storage box 10. The output end of the motor 11 is fixedly connected to a transmission rod 13 through a coupling. The motor 11 drives the transmission rod 13 to rotate.

[0033] Furthermore, such as Figure 3 , Figure 4 As shown, multiple stirring plates 19 are fixedly connected to the outer surface of the transmission rod 13. The stirring plates 19 are used to stir the molten steel inside the storage box 10, so that the molten steel is evenly distributed, ensuring that the material concentration is consistent in different positions and improving product quality.

[0034] Furthermore, such as Figure 3 , Figure 4 As shown, a support plate 1 is provided at the bottom of the limiting tube 3, and a support frame 4 is fixedly connected to the upper surface of the support plate 1. The top of the support frame 4 is fixedly connected to the outer surface of the storage box 10. The support frame 4 serves as a support device.

[0035] Furthermore, such as Figure 1 , Figure 3 As shown, a guide block 2 is fixedly connected to the upper surface of the support plate 1, and the guide block 2 is used to guide and limit the formed material.

[0036] Furthermore, such as Figure 1 , Figure 3As shown, two limiting frames 5 are fixedly connected to the upper surface of the support plate 1. The surfaces of the two limiting frames 5 are fixedly connected to nozzles 6 arranged in a linear pattern. Cooling water is sprayed out through the nozzles 6 to further cool the steel billet and make the material form faster. Water injection pipes 20 are fixedly connected to the back of the two limiting frames 5. Cooling water is injected into the interior of the limiting frames 5 by connecting the water injection pipes 20 to the external water pipes.

[0037] The high-efficiency tubular crystallizer provided by this utility model is used as follows: First, molten steel is injected into the storage box 10. The molten steel is filtered by the partition plate 12 to prevent large impurities from entering the storage box 10 and causing blockage. The molten steel enters the limiting tube 3, and a guide head is installed at the bottom of the limiting tube 3 to block the molten steel. Then, the motor 11 is started, causing the transmission rod 13 to rotate, which in turn rotates the stirring plate 19. The stirring plate 19 stirs the molten steel entering the storage box 10, ensuring uniform distribution and improving the quality of the billet. Then, water is connected to the inlet pipe 9 through an external water pipe, allowing water to enter the gap between the limiting tube 3 and the outer pipe 7. Water then passes through the gaps between multiple support columns 15 and the first protrusion 16, enters the gaps between multiple second protrusions 18, and is discharged from the device through the outlet pipe 8. This ensures that the water flow is always evenly distributed on the surface of the limiting tube 3, uniformly cooling the molten steel inside the limiting tube 3 and preventing blockage. To prevent cracks from appearing on the surface of the steel billet due to uneven heating, after a steel shell forms on the surface of the billet, the billet is pulled out from inside the limiting tube 3 by external mechanical force pulling the ingot head. At this time, the billet is guided by the limiting tube 3, and cooling water is injected into the water injection pipe 20 through the external water pipe. The cooling water enters the interior of the limiting frame 5 and is sprayed onto the surface of the billet by the nozzle 6, accelerating the billet forming speed and achieving rapid cooling of the billet. After use, the multi-stage electric telescopic rod 21 is activated, utilizing the multi-stage... The electric telescopic rod 21 pushes the limiting block 17 upward, causing the limiting block 17 to drive the scraper ring 14 and the first protrusion 16 upward. The scraper ring 14 scrapes the outer surface of the limiting tube 3 and the inner wall of the outer tube 7 to remove the scale adhering to their surfaces. When the first protrusion 16 moves to the top, the first protrusion 16 and the second protrusion 18 interweave to clean the gaps between the multiple first protrusions 16 and the multiple second protrusions 18, preventing blockages that would hinder water flow and affect the cooling effect.

[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this 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 specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A high-efficiency tubular crystallizer, characterized in that, The device includes a limiting tube (3), an outer tube (7) fixedly connected to the outer surface of the limiting tube (3), an outlet pipe (8) fixedly connected to the outer surface of the top end of the outer tube (7), a second protrusion (18) arranged in a circular array fixedly connected to the inner surface of the top end of the outer tube (7), the inner walls of multiple second protrusions (18) fixedly connected to the outer surface of the limiting tube (3), an inlet pipe (9) fixedly connected to the outer surface of the bottom end of the outer tube (7), a scraper ring (14) sleeved on the outer surface of the limiting tube (3), the outer surface of the scraper ring (14) contacting the inner wall of the outer tube (7), a support column (15) arranged in a circular array fixedly connected to the upper surface of the scraper ring (14), a first protrusion (16) fixedly connected to the upper surface of each support column (15), the shape of the outer tube (7) matching the gap between the two second protrusions (18), and a driving device provided on the outer surface of the limiting tube (3).

2. The high-efficiency tubular crystallizer according to claim 1, characterized in that, The driving device includes a multi-stage electric telescopic rod (21), the bottom end of which is fixedly connected to the outer surface of the limiting tube (3), and the output end of which is fixedly connected to a limiting block (17), the outer surface of which is fixedly connected to the outer surface of the scraper ring (14).

3. The high-efficiency tubular crystallizer according to claim 2, characterized in that, The top end of the limiting tube (3) is fixedly connected to a storage box (10), and the inside of the storage box (10) is fixedly connected to a partition plate (12) arranged in a linear array.

4. The high-efficiency tubular crystallizer according to claim 3, characterized in that, A motor (11) is fixedly connected to one side of the storage box (10), and a transmission rod (13) is fixedly connected to the output end of the motor (11) through a coupling.

5. A high-efficiency tubular crystallizer according to claim 4, characterized in that, Multiple stirring plates (19) are fixedly connected to the outer surface of the transmission rod (13).

6. A high-efficiency tubular crystallizer according to claim 5, characterized in that, The bottom of the limiting tube (3) is provided with a support plate (1), and a support frame (4) is fixedly connected to the upper surface of the support plate (1). The top of the support frame (4) is fixedly connected to the outer surface of the storage box (10).

7. A high-efficiency tubular crystallizer according to claim 6, characterized in that, A guide block (2) is fixedly connected to the upper surface of the support plate (1).

8. A high-efficiency tubular crystallizer according to claim 7, characterized in that, Two limiting frames (5) are fixedly connected to the upper surface of the support plate (1). The surfaces of the two limiting frames (5) are fixedly connected to nozzles (6) arranged in a linear pattern. Water injection pipes (20) are fixedly connected to the back of the two limiting frames (5).

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