Rotary crystallizer for electroslag remelting

Abstract

The utility model relates to the technical field of rotary crystallizers, and discloses a rotary crystallizer for electroslag remelting, which comprises a support frame and a rotary tank, one side of the support frame is fixedly connected with a motor, the output end of the motor is fixedly connected with a rotary column, and the outer wall of the rotary column is fixedly connected with a driving wheel. A rotating frame is fixedly connected to the outer wall of the rotating column, the rotating tank is rotatably connected to the interior of the rotating frame, a connecting column is rotatably connected to the interior of the rotating frame, a driven wheel is fixedly connected to the top end of the connecting column, the driven wheel is meshed with the driving wheel, and a transmission assembly is arranged at the bottom end of the connecting column. According to the stirring device, the motor drives the rotating column to rotate, the driving wheel rotates along with the rotating column, the driving wheel is meshed with the driven wheel, power is transmitted to the connecting column, then the stirring blades are driven by the chain and the second chain wheel to stir materials in the rotating tank, and meanwhile the rotating frame is driven by the rotating column to enable the rotating tank to rotate. And the effect of comprehensive rotation of the crystallizer is achieved.

Description

Technical Field

[0001] This utility model relates to the field of rotary crystallizer technology, and in particular to a rotary crystallizer for electroslag remelting. Background Technology

[0002] In modern metallurgical industry, electroslag remelting technology is widely used as a refining method that can significantly improve the quality of metallic materials. It effectively removes impurities from metals and improves their microstructure and properties through a remelting process within a slag pool. The rotating crystallizer, as a key piece of equipment in the electroslag remelting system, plays a decisive role in controlling the metal solidification process and improving ingot quality.

[0003] Existing rotary crystallizers for electroslag remelting employ various schemes. Some crystallizers use a simple stirring blade structure, with the stirring blade directly driven by a motor to rotate inside the crystallizer to stir the material. Other crystallizers use a bottom rotating tray structure, where the crystallizer is placed on a rotatable tray, and the motor drives the tray to rotate via belt or gear transmission, thereby causing the entire crystallizer to rotate slowly.

[0004] However, existing technologies suffer from the problem that the crystallizer cannot achieve full rotation, leading to uneven material mixing and distribution, which affects the crystallization quality. In actual electroslag remelting, the solidification process of molten metal in the crystallizer is very complex, and the requirements for the uniformity of material mixing are extremely high. Crystallizers with simple stirring blade structures can only produce a strong stirring effect in local areas due to the limited range of action of the stirring blades. In areas far from the blades, the material flow is slow and component segregation is prone to occur. Crystallizers with bottom rotating tray structures can make the crystallizer rotate as a whole, but the material in the crystallizer mainly moves in a circular motion, and the radial and axial mixing effects are not good, making it impossible to achieve full-range mixing. Therefore, a rotating crystallizer for electroslag remelting is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a rotary crystallizer for electroslag remelting, which aims to improve the problem in the prior art where the material mainly moves in a circular motion within the crystallizer, resulting in poor radial and axial mixing and the inability to achieve all-round mixing.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A rotary crystallizer for electroslag remelting includes a support frame and a rotary tank. A motor is fixedly connected to one side of the support frame, and a rotating column is fixedly connected to the output end of the motor. A driving wheel is fixedly connected to the outer wall of the rotating column, and a rotating frame is fixedly connected to the outer wall of the rotating column. The rotary tank is rotatably connected inside the rotating frame, and a connecting column is rotatably connected inside the rotating frame. A driven wheel is fixedly connected to the top of the connecting column, and the driven wheel meshes with the driving wheel. A transmission assembly is provided at the bottom end of the connecting column, and a cooling assembly is provided inside the rotary tank.

[0008] The transmission assembly includes a first sprocket, which is fixedly connected to the bottom of the connecting column. A second sprocket is rotatably connected to the bottom of the rotating frame. A chain is provided between the first sprocket and the second sprocket. A transmission column is fixedly connected to the inside of the second sprocket. The transmission column is rotatably connected to the rotating frame and the rotating tank.

[0009] As a further description of the above technical solution:

[0010] The cooling assembly includes a cooling pipe disposed inside the rotating tank, and a stirring blade is fixedly connected to the outer wall of the drive column, the stirring blade being rotatably connected inside the rotating tank.

[0011] As a further description of the above technical solution:

[0012] The rotating tank is fixedly connected to an inlet pipe, and a valve is fixedly connected to one end of the inlet pipe.

[0013] As a further description of the above technical solution:

[0014] A connecting pipe is fixedly connected to the input end of the valve, and a support frame is fixedly connected to the outer wall of the connecting pipe.

[0015] As a further description of the above technical solution:

[0016] A circulation pump is fixedly connected inside the support frame, and the output end of the circulation pump is connected to the connecting pipe.

[0017] As a further description of the above technical solution:

[0018] A second connecting pipe is fixedly connected inside the support frame, and the input end of the circulation pump is connected to the second connecting pipe.

[0019] As a further description of the above technical solution:

[0020] A material injection pipe is fixedly connected inside the support frame. The material injection pipe is connected to the first connecting pipe. A valve is fixedly connected to one end of the second connecting pipe.

[0021] As a further description of the above technical solution:

[0022] The valve has a discharge pipe fixedly connected to its two input ends, and the outer wall of the discharge pipe is fixedly connected to the inside of the rotating tank.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the rotating column is driven by a motor to rotate, and the driving wheel rotates accordingly. The driving wheel meshes with the driven wheel to transmit power to the connecting column, which in turn drives the stirring blades to stir the material in the rotating tank through the chain and sprocket. At the same time, the rotating frame rotates under the drive of the rotating column, so that the rotating tank also rotates. This achieves the effect of full rotation of the crystallizer, which solves the problem that the material mainly moves in a circular motion in the crystallizer, and the radial and axial mixing effects are not good, and it is impossible to achieve full-range mixing, thereby improving the crystallization efficiency.

[0025] 2. In this utility model, the material is injected into the connecting pipe one through the injection pipe, and then sent into the rotary tank for cooling and crystallization through the inlet pipe via the circulation pump and valve one. The material that is not fully crystallized flows into the outlet pipe, and after opening valve two, it enters the connecting pipe two. Then, it is driven by the input end of the circulation pump to re-enter the connecting pipe one, and finally flows back to the rotary tank for secondary crystallization. This achieves the effect of material recycling and crystallization, and solves the problem that traditional crystallizers cannot reuse the material that is not fully crystallized, and can only discard it, resulting in resource waste and increased costs. This improves the flexibility of the crystallizer. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a rotary crystallizer for electroslag remelting proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the bottom structure of the rotating frame of a rotary crystallizer for electroslag remelting proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the internal structure of the rotating tank of a rotating crystallizer for electroslag remelting proposed in this utility model;

[0029] Figure 4 This is a schematic diagram of the support frame structure of a rotary crystallizer for electroslag remelting proposed in this utility model.

[0030] Legend:

[0031] 1. Support frame; 2. Rotary tank; 3. Motor; 4. Drive wheel; 5. Rotating column; 6. Rotating frame; 7. Connecting column; 8. Driven wheel; 9. Sprocket 1; 10. Sprocket 2; 11. Chain; 12. Transmission column; 13. Agitator blade; 14. Cooling pipe; 15. Feed pipe; 16. Valve 1; 17. Connecting pipe 1; 18. Support frame; 19. Injection pipe; 20. Circulating pump; 21. Connecting pipe 2; 22. Valve 2; 23. Discharge pipe. Detailed Implementation

[0032] 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.

[0033] Reference Figures 1-3 This utility model provides an embodiment of a rotary crystallizer for electroslag remelting, comprising a support frame 1 and a rotary tank 2. A motor 3 is fixedly connected to one side of the support frame 1, and a rotating column 5 is fixedly connected to the output end of the motor 3, which is responsible for transmitting the rotational power of the motor 3 to the rotating frame 6 and further driving the rotation of the rotary tank 2. A drive wheel 4 is fixedly connected to the outer wall of the rotating column 5, and the rotating frame 6 is fixedly connected to the outer wall of the rotating column 5. The rotary tank 2 is rotatably connected inside the rotating frame 6. The rotary tank 2 is rotatably connected inside the rotating frame 6, so that it can uniformly stir and melt metal. A connecting column 7 is rotatably connected inside the rotating frame 6, and a driven wheel 8 is fixedly connected to the top of the connecting column 7. The driven wheel 8 and the drive wheel 4 mesh with each other. A transmission component is provided at the bottom end of the connecting column 7, and a cooling component is provided inside the rotary tank 2.

[0034] The transmission assembly includes a first sprocket 9, which is fixedly connected to the bottom of the connecting column 7. A second sprocket 10 is rotatably connected to the bottom of the rotating frame 6. A chain 11 is provided between the first sprocket 9 and the second sprocket 10. A transmission column 12 is fixedly connected inside the second sprocket 10. The rotation of the second sprocket 10 drives the transmission column 12 to rotate within the rotating frame 6 and the rotating tank 2, so that the stirring blade 13 can stir inside the rotating tank 2. The stirring function is to fully mix the materials in the rotating tank 2, promote the uniform distribution of the materials, and thus accelerate the crystallization process. The transmission column 12 is rotatably connected to the rotating frame 6 and the interior of the rotating tank 2. The stirring blade 13 is fixedly connected to the outer wall of the transmission column 12 and is rotatably connected inside the rotating tank 2.

[0035] Reference Figure 1 , Figure 2 and Figure 4The cooling assembly includes a cooling pipe 14, which is disposed inside the rotary tank 2. A feed pipe 15 is fixedly connected inside the rotary tank 2. A valve 16 is fixedly connected to one end of the feed pipe 15. The feed pipe 15 is used to feed metal raw materials into the rotary tank 2. The valve 16 is used to control the amount of raw material entering, ensuring that there is neither too much nor too little raw material during the smelting process. A connecting pipe 17 is fixedly connected to the input end of the valve 16. A support frame 18 is fixedly connected to the outer wall of the connecting pipe 17. A circulation pump 20 is fixedly connected inside the support frame 18. The output end of the circulation pump 20 is connected to the connecting pipe 17. The connecting pipe 17 connects the feed pipe 15 to the circulation pump 20. A connecting... Pipe 21 is connected to the input end of the circulation pump 20. A material injection pipe 19 is fixedly connected inside the support frame 18. The material injection pipe 19 is connected to the first connecting pipe 17. A valve 22 is fixedly connected to one end of the second connecting pipe 21. A discharge pipe 23 is fixedly connected to the input end of the valve 22. The outer wall of the discharge pipe 23 is fixedly connected to the inside of the rotating tank 2. During the cooling and crystallization process, due to the difference in cooling rate, some materials fail to crystallize completely and eventually flow into the discharge pipe 23 at the bottom of the rotating tank 2. At this time, by opening the valve 22, the uncrystallized material flows into the second connecting pipe 21. The circulation pump 20 then sends the material back into the first connecting pipe 17 and back into the rotating tank 2 for secondary crystallization.

[0036] Working principle: When using this rotary crystallizer, the motor 3 starts first, and its output end drives the rotating column 5 to rotate. The driving wheel 4 on the rotating column 5 rotates accordingly. The driving wheel 4 meshes with the driven wheel 8, and then transmits power to the connecting column 7, causing the connecting column 7 to rotate. The sprocket 9 at the bottom of the connecting column 7 is driven by the chain 11 and the sprocket 10, which drives the transmission column 12 to rotate in the rotating frame 6 and the rotating tank 2. When the transmission column 12 rotates, the stirring blades 13 fixed on its outer wall rotate in the rotating tank 2, stirring the material in the rotating tank 2. At the same time, the rotating frame 6 rotates under the drive of the rotating column 5, so that the rotating tank 2 also rotates, further promoting the mixing and uniform distribution of the internal material, thereby achieving the effect of the crystallizer being able to rotate completely.

[0037] During the use of this rotary crystallizer, the material is first injected into the connecting pipe 17 inside the support frame 18 through the injection pipe 19. The material in the connecting pipe 17 is then sent into the feed pipe 15 through the valve 16 by the output of the circulation pump 20. This allows the material to enter the rotary tank 2 for cooling and crystallization. During this process, the material that has not been fully crystallized will flow into the discharge pipe 23 at the bottom of the rotary tank 2. At this time, the valve 22 is opened, allowing the material to enter the connecting pipe 21. Simultaneously, the input end of the circulation pump 20 drives the material inside the connecting pipe 21 to re-enter the connecting pipe 17. Finally, the material flows back into the rotary tank 2 for secondary crystallization, thus achieving the effect of circulating crystallization of the material.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rotary crystallizer for electroslag remelting, comprising a support frame (1) and a rotary pot (2), characterized in that: A motor (3) is fixedly connected to one side of the support frame (1), and a rotating column (5) is fixedly connected to the output end of the motor (3). A drive wheel (4) is fixedly connected to the outer wall of the rotating column (5), and a rotating frame (6) is fixedly connected to the outer wall of the rotating column (5). The rotating tank (2) is rotatably connected inside the rotating frame (6). A connecting column (7) is rotatably connected inside the rotating frame (6). A driven wheel (8) is fixedly connected to the top of the connecting column (7). The driven wheel (8) meshes with the drive wheel (4). A transmission assembly is provided at the bottom of the connecting column (7). A cooling assembly is provided inside the rotating tank (2). The transmission assembly includes a first sprocket (9), which is fixedly connected to the bottom of the connecting column (7). A second sprocket (10) is rotatably connected to the bottom of the rotating frame (6). A chain (11) is provided between the first sprocket (9) and the second sprocket (10). A transmission column (12) is fixedly connected to the second sprocket (10). The transmission column (12) is rotatably connected to the rotating frame (6) and the rotating tank (2).

2. A rotating crystallizer for electroslag remelting according to claim 1, characterized in that: The cooling assembly includes a cooling pipe (14) which is disposed inside the rotating tank (2). A stirring blade (13) is fixedly connected to the outer wall of the transmission column (12) and the stirring blade (13) is rotatably connected inside the rotating tank (2).

3. A rotating crystallizer for electroslag remelting according to claim 1, characterized in that: The rotating tank (2) is fixedly connected to a feed pipe (15), and a valve (16) is fixedly connected to one end of the feed pipe (15).

4. A rotating crystallizer for electroslag remelting according to claim 3, characterized in that: The valve (16) is fixedly connected to a connecting pipe (17) at its input end, and a support frame (18) is fixedly connected to the outer wall of the connecting pipe (17).

5. A rotating crystallizer for electroslag remelting according to claim 4, characterized in that: A circulation pump (20) is fixedly connected inside the support frame (18), and the output end of the circulation pump (20) is connected to the connecting pipe (17).

6. A rotating crystallizer for electroslag remelting according to claim 5, characterized in that: The support frame (18) is fixedly connected to the second connecting pipe (21), and the input end of the circulation pump (20) is connected to the second connecting pipe (21).

7. A rotating crystallizer for electroslag remelting according to claim 6, characterized in that: The support frame (18) is fixedly connected to an injection pipe (19), which is connected to the first connecting pipe (17). One end of the second connecting pipe (21) is fixedly connected to a valve (22).

8. A rotating crystallizer for electroslag remelting according to claim 7, characterized in that: The valve 2 (22) is fixedly connected to the discharge pipe (23) at its input end, and the outer wall of the discharge pipe (23) is fixedly connected to the inside of the rotary tank (2).

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