Metal-based alloy purification device capable of preventing impurities from being mixed again

Abstract

The utility model provides a metal-based alloy purification device capable of preventing impurities from being mixed again, which comprises a furnace body of an intermediate frequency furnace, a top liquid outlet is arranged at the top of the furnace body, and a hinge shaft is arranged under the top liquid outlet, so that the furnace body can rotate; a bottom liquid outlet is formed in the lower end of the furnace body; the bottom liquid outlet is located under the hinge shaft. The bottom liquid outlet is connected with a liquid discharge pipe; the outer side of the liquid discharging pipe is coated with a first heat preservation layer; the lower end of the drain pipe is connected with the bottom liquid outlet, and the upper end of the drain pipe is higher than the liquid level in the furnace body; and after the alloy in the furnace body is melted, the melt in the furnace body is discharged from the liquid discharge pipe. And the melt is discharged from the bottom of the furnace body, so that the problem of re-mixing of impurities caused by melt flowing, vortex and splashing in the traditional method is effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of purification equipment technology, and in particular to alloy purification, specifically a metal-based alloy purification device that prevents impurities from being mixed in again. Background Technology

[0002] In the field of metal smelting, intermediate frequency furnaces are widely used for the purification of titanium-based alloys, aluminum-based alloys, or nickel-based alloys. During purification, the alloy is melted in the intermediate frequency furnace, causing impurities to float on the surface of the melt due to density differences. These impurities are then removed by pouring the liquid out from the top of the furnace. However, this purification method has several drawbacks in practical applications, as follows:

[0003] 1. During the melting process, some impurities may remain inside the melt or adhere to the furnace wall due to factors such as surface tension, melt flow, and furnace wall adhesion, resulting in incomplete impurity removal.

[0004] 2. Tiny impurities are difficult to remove: During the alloy melting process, tiny impurity particles may be evenly dispersed in the melt. Due to the small size of these particles, they are difficult to remove effectively by simple pouring.

[0005] 3. During the process of pouring liquid from the top of the induction furnace, due to the flow and eddy currents of the melt, as well as possible splashing, impurities that have already floated on the surface of the liquid are easily mixed back into the melt. Utility Model Content

[0006] To address the technical problems in the background art, this utility model discloses a metal-based alloy purification device that prevents impurities from being re-introduced.

[0007] This utility model provides a metal-based alloy purification device to prevent impurities from being mixed in again, including a furnace body of a medium frequency furnace, a top liquid outlet is provided at the top of the furnace body, a hinge shaft is provided directly below the top liquid outlet to allow the furnace body to rotate; and a bottom liquid outlet is provided at the lower end of the furnace body.

[0008] The bottom outlet is located directly below the hinge shaft;

[0009] A drain pipe is connected to the bottom outlet.

[0010] The outer side of the drain pipe is covered with a first insulation layer;

[0011] The drain pipe is inclined upward, with its lower end connected to the bottom outlet and its upper end higher than the liquid level inside the furnace.

[0012] Once the alloy inside the furnace has melted, the molten material inside the furnace is discharged through the drain pipe.

[0013] The beneficial effects of the above settings are: 1. The melt is discharged from the bottom of the furnace, which effectively avoids the problem of impurities being re-mixed in due to melt flow, eddies and splashing in traditional methods; 2. The position of the bottom outlet allows the melt to be discharged more thoroughly when the furnace rotates, reducing impurities remaining in the furnace due to furnace wall adhesion or melt flow; 3. The first insulation layer is used to maintain a stable temperature in the drain pipe.

[0014] The molten metal inside the furnace is discharged directly from the drain pipe, resulting in a large impact that can easily damage or leak the pipeline. Therefore, a further improvement is made: a storage chamber connected to the bottom outlet is installed at the bottom of the furnace; the lower end of the drain pipe is connected to the storage chamber; and a second insulation layer covers the outside of the storage chamber. The beneficial effects of this design are: 1. When the molten metal flows out from the bottom outlet, it first enters the storage chamber for buffering, reducing the risk of direct impact on the drain pipe and preventing pipeline damage or leakage caused by the impact; 2. The design of the storage chamber helps to smoothly discharge the molten metal, effectively preventing splashing during the discharge process and ensuring the safety of operators; 3. The storage chamber can serve as a temporary storage space for molten metal. By adjusting the connection position between the drain pipe and the storage chamber or by installing valves, the discharge speed and flow rate of the molten metal can be more precisely controlled to meet different production needs; 4. Because the molten metal is buffered in the storage chamber, the impact on the furnace body during direct discharge is reduced, helping to reduce furnace vibration and noise and extend the furnace's service life.

[0015] The connection position between the liquid storage chamber and the drain pipe directly affects the amount of melt remaining in the furnace body. Based on this, a further improvement is made: a drain hole connected to the lower end of the drain pipe is provided on the side of the liquid storage chamber in the horizontal direction, on the same side as the top liquid outlet; the liquid outlet direction of the drain hole is the same as that of the top liquid outlet.

[0016] One end of the drain pipe is fixed, while the other end is suspended, resulting in an unstable position. Therefore, a further improvement is made by installing a fixing device on the side of the furnace body near the drain pipe, which is fixedly connected to the side of the drain pipe.

[0017] To further improve the positional stability of the drain pipe, specifically: two fixing devices are provided, one of which is fixedly connected to the drain pipe near the top and the other is fixedly connected to the drain pipe near the bottom.

[0018] The specific structure of the fixing device is as follows: it includes a base; a connecting rod is hinged on the base; a fixed clamp is provided at the end of the connecting rod; a movable clamp with opposite openings is connected to the fixed clamp; the fixed clamp and the movable clamp clamp the drain pipe.

[0019] The movable clamp and the fixed clamp are generally separate structures, requiring additional space to place the movable clamp. This not only takes up more space, but the movable clamp is also easy to lose. Based on this, a further improvement is made: a connecting plate is connected between the same end of the fixed clamp and the movable clamp; one end of the connecting plate is hinged to the fixed clamp, and the other end is hinged to the movable clamp.

[0020] The opening and closing ends of the fixed clamp and the movable clamp are generally fixed by bolts. When the fixed clamp and the movable clamp are opened, the bolts are easy to lose. Based on this, a further improvement is made: the other end of the fixed clamp is provided with a groove; the other end of the movable clamp is hinged with a bolt; the bolt is engaged in the groove by rotation and is fixed by a nut; the length of the bolt stud section is configured such that when the nut is loose and does not disengage from the bolt, the bolt can be rotated to disengage from the groove.

[0021] Because the length of the connecting rod may deviate, it is difficult to accurately connect the fixed clamp and the movable clamp to the set position of the drain pipe. Based on this, a further improvement is made: the fixed clamp is hinged to the connecting rod.

[0022] Because the fixing device is prone to misalignment with the drain pipe, making it difficult to accurately engage the drain pipe within the fixed and movable clamps, a further improvement is made: the base is equipped with an arc-shaped fixing ring, the open end of which connects to the furnace body; one end of the connecting rod is equipped with a circular collar, into which the fixing ring is inserted. This design allows the connecting rod to rotate not only up and down but also left and right, and to flip to a certain angle, offering greater flexibility and improving the positional accuracy of the fixed and movable clamps in clamping the drain pipe.

[0023] The beneficial effects of this utility model are: 1. The melt is discharged from the bottom of the furnace body, which effectively avoids the problem of impurities being re-mixed in due to melt flow, eddies and splashing in traditional methods; 2. The position setting of the bottom outlet allows the melt to be discharged more thoroughly when the furnace body rotates, reducing the impurities remaining in the furnace body due to furnace wall adhesion or melt flow; 3. The first insulation layer is used to keep the temperature in the drain pipe stable. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] Figure 1 This is a schematic diagram of the structure of this utility model;

[0026] Figure 2 This is a structural schematic diagram of the fixing device;

[0027] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0028] In the diagram: 1. Furnace body; 2. Top liquid outlet; 3. Hinge shaft; 4. Bottom liquid outlet; 5. Drain pipe; 6. First insulation layer; 7. Liquid storage chamber; 8. Second insulation layer; 9. Drain hole; 10. Base; 11. Connecting rod; 12. Fixed clamp; 13. Movable clamp; 14. Connecting plate; 15. Slot; 16. Bolt; 17. Nut; 18. Fixing ring; 19. Collar. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0030] like Figure 1 As shown, this utility model discloses a metal-based alloy purification device to prevent impurities from re-entering, including a furnace body 1 of a medium-frequency furnace. A top liquid outlet 2 is provided at the top of the furnace body 1, and a hinge shaft 3 is located directly below the top liquid outlet 2, allowing the furnace body 1 to rotate. The conventional method of liquid discharge is as follows: the furnace body 1 rotates around the hinge shaft 3, causing the top liquid outlet 2 to rotate downwards, and the molten material is discharged outwards from the top liquid outlet 2.

[0031] A bottom outlet 4 is provided at the lower end of the furnace body 1, located directly below the hinge shaft 3. A liquid storage chamber 7, communicating with the bottom outlet 4, is provided at the bottom of the furnace body 1; the liquid storage chamber 7 has a drain hole 9 penetrating both the inner and outer sides. A second insulation layer 8 covers the outer side of the liquid storage chamber 7. An inclined drain pipe 5 is provided, its lower end connected to and communicating with the outlet of the drain hole 9, and its upper end higher than the liquid level inside the furnace body 1. When the alloy inside the furnace body 1 melts, the molten material inside the furnace body 1 is discharged from the drain pipe 5 by rotating the furnace body 1. The drain pipe 5 is arc-shaped, which acts as a buffer when the molten material flows through the drain pipe 5, reducing the impact force of the molten material flowing out of the drain pipe 5.

[0032] The drain hole 9 is located on the side of the liquid storage chamber 7, and its liquid outlet direction is the same as that of the top liquid outlet 2. This reduces the amount of molten material remaining in the furnace body 1.

[0033] One end of the drain pipe 5 is fixed, while the other end is suspended in the air, making its position unstable. Therefore, a fixing device is installed on the side of the furnace body 1 near the drain pipe 5, which is fixedly connected to the side of the drain pipe 5.

[0034] like Figure 2 and Figure 3 As shown, the fixing device includes a base 10; a connecting rod 11 is hinged to the base 10; a fixed clamp 12 is provided at the end of the connecting rod 11; a movable clamp 13 with opposite openings is connected to the fixed clamp 12; the fixed clamp 12 and the movable clamp 13 clamp the drain pipe 5.

[0035] A connecting plate 14 connects the fixed clamp 12 and the movable clamp 13 at the same end; one end of the connecting plate 14 is hinged to the fixed clamp 12, and the other end is hinged to the movable clamp 13. With this configuration, even when the fixed clamp 12 and the movable clamp 13 are in the open state, they are still connected together, which not only saves the space required to store the movable clamp 13, but also makes it less likely to be lost.

[0036] The fixed clamp 12 has a slot 15 at one end; the movable clamp 13 has a bolt 16 hinged to its other end, with the head of the bolt 16 being annular and intersecting with the movable clamp 13. The bolt 16 is engaged in the slot 15 by rotation and locked in place by a nut 17. The length of the stud section of the bolt 16 is configured such that when the nut 17 is loosened but does not disengage from the bolt 16, the bolt 16 can be rotated to disengage from the slot 15. With this configuration, when the fixed clamp 12 and the movable clamp 13 are opened, the bolt 16 and the nut 17 remain connected to the movable clamp 13, preventing them from being lost.

[0037] Because the length of the connecting rod 11 may deviate, it is difficult to accurately connect the fixed clamp 12 and the movable clamp 13 to the set position of the drain pipe 5. Therefore, the fixed clamp 12 is hinged to the connecting rod 11, so that the fixed clamp 12 can rotate up and down.

[0038] Because the fixing device is easily misaligned with the drain pipe 5, making it difficult to accurately engage the drain pipe 5 within the fixed clamp 12 and the movable clamp 13, the base 10 is equipped with an arc-shaped fixing ring 18, the open end of which connects to the furnace body 1. One end of the connecting rod 11 is equipped with a circular collar 19, the inner diameter of which is larger than the cross-sectional diameter of the fixing ring 18, and the fixing ring 18 is inserted into the collar 19. With this configuration, the connecting rod 11 can not only rotate up and down, but also rotate left and right, achieving a certain angle of rotation (the collar 19 forms an acute angle with the horizontal plane), thus increasing its flexibility and improving the positional accuracy of the fixed clamp 12 and the movable clamp 13 in clamping the drain pipe 5.

[0039] Compared with existing technologies, the advantages of this embodiment are: 1. The molten metal is discharged from the bottom of the furnace body 1, effectively avoiding the problem of impurities being re-mixed in due to molten metal flow, eddies, and splashing in traditional methods; 2. The position of the bottom outlet 4 allows the molten metal to be discharged more thoroughly when the furnace body 1 rotates, reducing impurities remaining in the furnace body 1 due to furnace wall adhesion or molten metal flow; 3. The first insulation layer 6 is used to maintain a stable temperature in the drain pipe 5; 4. When the molten metal flows out from the bottom outlet of the furnace, it first enters the storage chamber 7 for buffering, reducing the risk of the molten metal directly impacting the drain pipe 5 and avoiding the risk of impact. 5. The design of the liquid storage chamber 7 helps to smoothly discharge molten metal, effectively preventing splashing of molten metal during the discharge process and ensuring the safety of operators; 6. The liquid storage chamber 7 can serve as a temporary molten metal storage space. By adjusting the connection position between the drain pipe 5 and the liquid storage chamber 7 or by setting valves, the discharge speed and flow rate of molten metal can be more precisely controlled to meet different production needs; 7. Because the molten metal is buffered in the liquid storage chamber 7, the impact on the furnace body 1 during direct discharge is reduced, which helps to reduce the vibration and noise of the furnace body 1 and extend the service life of the furnace body 1.

[0040] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A metal-based alloy purification device for preventing the re-introduction of impurities, comprising a furnace body (1) of a medium-frequency furnace, wherein a top liquid outlet (2) is provided at the top of the furnace body (1), and a hinge shaft (3) is provided directly below the top liquid outlet (2) to enable the furnace body (1) to rotate, characterized in that: The lower end of the furnace body (1) is provided with a bottom liquid outlet (4); The bottom outlet (4) is located directly below the hinge shaft (3); The bottom outlet (4) is connected to a drain pipe (5); The outer side of the drain pipe (5) is covered with a first insulation layer (6); The drain pipe (5) is inclined upward, its lower end is connected to the bottom outlet (4), and its upper end is higher than the liquid level inside the furnace body (1); After the alloy inside the furnace body (1) melts, the melt inside the furnace body (1) is discharged from the drain pipe (5).

2. The metal-based alloy purification device for preventing the re-introduction of impurities according to claim 1, characterized in that: The bottom of the furnace body (1) is provided with a liquid storage chamber (7) that communicates with the bottom liquid outlet (4); The lower end of the drain pipe (5) is connected to the liquid storage chamber (7); The outer side of the liquid storage cavity (7) is covered with a second insulation layer (8).

3. The metal-based alloy purification device for preventing the re-introduction of impurities according to claim 2, characterized in that: The liquid storage chamber (7) is provided with a drain hole (9) on the side of the liquid storage chamber (7) in the horizontal direction, on the same side as the top liquid outlet (2), which is connected to the lower end of the drain pipe (5); The discharge direction of the drain hole (9) is the same as that of the top drain hole (2).

4. The metal-based alloy purification device for preventing the re-introduction of impurities according to claim 3, characterized in that: A fixing device is provided on the side of the furnace body (1) near the drain pipe (5), and is fixedly connected to the side of the drain pipe (5).

5. The metal-based alloy purification device for preventing the re-introduction of impurities according to claim 4, characterized in that: The fixing device is provided in two parts, one of which is fixedly connected to the drain pipe (5) near the top and the other is fixedly connected to the drain pipe (5) near the bottom.

6. The metal-based alloy purification device for preventing the re-introduction of impurities according to claim 5, characterized in that: The fixing device includes a base (10); A connecting rod (11) is hinged to the base (10); The end of the connecting rod (11) is provided with a fixing clamp (12); The fixed clamp (12) is connected to a movable clamp (13) with opposite openings; The fixed clamp (12) and the movable clamp (13) clamp the drain pipe (5).

7. The metal-based alloy purification device for preventing the re-introduction of impurities according to claim 6, characterized in that: A connecting plate (14) is connected between the same end of the fixed clamp (12) and the movable clamp (13); One end of the connecting plate (14) is hinged to the fixed clamp (12), and the other end is hinged to the movable clamp (13).

8. The metal-based alloy purification device for preventing the re-introduction of impurities according to claim 7, characterized in that: The other end of the fixing clamp (12) is provided with a slot (15); The other end of the movable clamp (13) is hinged to a bolt (16); The bolt (16) is engaged in the slot (15) by rotation and locked in place by the nut (17); The length of the stud section of the bolt (16) is configured such that when the nut (17) is loose and does not come off the bolt (16), the bolt (16) can be rotated to disengage from the slot (15).

9. A metal-based alloy purification device for preventing the re-introduction of impurities according to claim 8, characterized in that: The fixed clamp (12) is hinged to the connecting rod (11).

10. A metal-based alloy purification device for preventing the re-introduction of impurities according to claim 9, characterized in that: The base (10) is provided with an arc-shaped fixing ring (18), and the open end of the fixing ring (18) is connected to the furnace body (1); One end of the connecting rod (11) is provided with a circular collar (19), and the fixing ring (18) is inserted into the collar (19).

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