Molten aluminum flow control and stabilization system

Abstract

The invention discloses an aluminum liquid flow control and stabilization system, which relates to the technical field of casting of aluminum castings and comprises an aluminum liquid sealing tank, a Venturi tube, an electromagnetic coil and a control center, an alternating magnetic field is generated at the venturi tube through the electromagnetic coil, molten aluminum is driven to flow along the spiral flow channel, and the control center adjusts the flowing speed of the molten aluminum in the spiral flow channel by controlling the frequency of the variable-frequency power source. The spiral flow channel is used for assisting molten aluminum in forming eddy current and can restrain molten aluminum turbulence and improve molten aluminum flow stability and flow speed control precision, the response speed of the electromagnetic coil is smaller than 10 ms, quick response can be achieved, the frequency of the variable-frequency power source can be set at will according to casting requirements, and the molten aluminum flow speed control precision is high. In addition, the electromagnetic coil does not make direct contact with the molten aluminum, molten aluminum adhesion can be avoided, and the molten aluminum flow speed control precision is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of aluminum casting, and in particular to an aluminum liquid flow control and stabilization system. Background Art

[0002] Liquid aluminum is often used in the casting process to produce aluminum ingots and other aluminum products. Due to the different thicknesses of different castings, the required aluminum liquid flow rate is also different, so the aluminum liquid flow rate needs to be adjusted accordingly.

[0003] The existing technology generally uses a conical plug in conjunction with a conical aluminum liquid outlet. For example, the aluminum liquid flow control device disclosed in patent CN209379904U adjusts the gap between the conical plug and the aluminum liquid outlet by axially moving the conical plug, thereby changing the flow rate of the aluminum liquid. This aluminum liquid flow control device has the following shortcomings:

[0004] 1. The control accuracy of aluminum liquid is insufficient. The difference between the target flow rate and the actual flow rate is usually greater than 5%, which is not conducive to the refinement of castings.

[0005] 2. When the conical plug is used to adjust the aluminum liquid flow rate, it is in direct contact with the aluminum liquid. The aluminum liquid itself has a certain viscosity and will adhere to the conical plug, resulting in inaccurate aluminum liquid flow adjustment.

[0006] 3. The aluminum liquid will be partially oxidized during the transportation process, which will affect the quality of the casting.

[0007] 4. Response lag: Closed-loop control that relies on liquid level feedback has time delays and is difficult to cope with sudden changes in flow demand.

[0008] In view of this, how to provide an aluminum liquid flow control device that can accurately control the aluminum liquid flow and avoid aluminum liquid adhesion and oxidation is a problem that technical personnel in this field urgently need to solve. Summary of the Invention

[0009] The purpose of the present invention is to provide a molten aluminum flow control and stabilization system to solve the problems existing in the prior art.

[0010] To achieve the above objectives, the present invention provides a molten aluminum flow control and stabilization system, comprising:

[0011] Aluminum liquid sealed tank, having an aluminum liquid inlet and an aluminum liquid outlet;

[0012] A venturi tube, one end of which is connected to the molten aluminum outlet and the other end of which is connected to the grouting assembly, wherein the grouting assembly is used to inject grout into the casting, and the interior of the venturi tube defines a spiral flow channel along its length;

[0013] An electromagnetic coil is wound around the outside of the Venturi tube along the length direction of the Venturi tube, and the electromagnetic coil is electrically connected to a variable frequency power supply, capable of generating an alternating magnetic field corresponding to the Venturi tube and driving the aluminum liquid to flow along the spiral flow channel;

[0014] The control center is electrically connected to the variable frequency power supply, and the control center adjusts the flow speed of the aluminum liquid in the spiral flow channel by controlling the frequency of the variable frequency power supply.

[0015] Furthermore, it also includes:

[0016] A box body defines an installation chamber therein, and the box body has an upper opening and a lower opening communicating with the installation chamber; the other end of the venturi tube passes through the upper opening and the lower opening in sequence from top to bottom and extends to the outside;

[0017] The heat-insulating sleeve is located in the installation chamber and is sleeved on the outside of the venturi tube; the electromagnetic coil is wound on the outside of the heat-insulating sleeve, and the upper and lower ends of the electromagnetic coil are respectively connected to the upper and lower surfaces of the box body.

[0018] Furthermore, it also includes:

[0019] The connecting section is funnel-shaped, one end of which is connected to the aluminum liquid outlet, and the other end of which is connected to the upper opening.

[0020] Furthermore, it also includes:

[0021] An air pump is connected at one end to the top of the aluminum liquid sealed tank and at the other end to the inert gas cylinder. The air pump is electrically connected to a control center. The control center adjusts the static pressure of the aluminum liquid in the aluminum liquid sealed tank by controlling the power of the air pump.

[0022] Furthermore, it also includes:

[0023] The pressure equalizing plate is horizontally arranged in the aluminum liquid sealing tank, and the pressure equalizing plate is located between the other end of the air pump and the liquid surface of the aluminum liquid. The pressure equalizing plate is provided with a plurality of air holes on the upper and lower surfaces.

[0024] Furthermore, it also includes:

[0025] Aluminum liquid conveying trough, one end of which is connected to the aluminum liquid inlet, and the other end of which is connected to the raw liquid inlet;

[0026] The sealing mechanism is sealingly arranged on the aluminum liquid conveying trough and is used for isolating the aluminum liquid in the aluminum liquid conveying trough from the external air.

[0027] Furthermore, the sealing mechanism includes:

[0028] A sealing plate is sealingly arranged on the aluminum liquid conveying trough, and an installation gap is opened on the sealing plate corresponding to the raw liquid inlet;

[0029] an elastic connecting belt, sealed and disposed in the installation gap;

[0030] The adjusting mechanism is rotatably arranged above the elastic connecting belt. When the adjusting mechanism is rotated to the first position, the adjusting mechanism presses down the elastic connecting belt and forms a minimum gap between the elastic connecting belt and the raw liquid inlet; when the adjusting mechanism is rotated to the second position, the adjusting mechanism presses down the elastic connecting belt and forms a maximum gap between the elastic connecting belt and the raw liquid inlet.

[0031] Furthermore, the elastic connecting belt is a flexible cloth layer woven from high-silica fiber.

[0032] Furthermore, the regulating mechanism includes:

[0033] An adjusting wheel is rotatably arranged above the elastic connecting band and is transmission-connected to the driving motor. An arc-shaped adjusting portion with a gradually increasing outer diameter is concentrically arranged on the adjusting wheel. When the end with the largest outer diameter of the arc-shaped adjusting portion presses down the elastic connecting band, the adjusting wheel rotates to the first position accordingly; when the end with the smallest outer diameter of the arc-shaped adjusting portion presses down the elastic connecting band, the adjusting wheel rotates to the second position accordingly.

[0034] Furthermore, an arc-shaped connecting portion is provided at the end with the smallest outer diameter and the end with the largest outer diameter of the arc-shaped adjusting portion, the outer diameter of the adjusting wheel is smaller than the end with the smallest outer diameter of the arc-shaped adjusting portion, one end of the arc-shaped connecting portion is connected to the adjusting wheel, and the other end is connected to the end with the largest outer diameter or the end with the smallest outer diameter of the arc-shaped adjusting portion.

[0035] The present invention discloses the following technical effects:

[0036] 1. An electromagnetic coil generates an alternating magnetic field at the Venturi tube, driving the molten aluminum along a spiral flow channel. The control center adjusts the flow rate of the molten aluminum in the spiral flow channel by controlling the frequency of the variable-frequency power supply. Compared with existing technologies, the spiral flow channel helps the molten aluminum form eddy currents and suppresses turbulence, improving flow stability and flow rate control precision. The electromagnetic coil has a response speed of less than 10ms, enabling rapid response. The frequency of the variable-frequency power supply can be arbitrarily set according to casting requirements, achieving high-precision flow rate control. Furthermore, the electromagnetic coil does not directly contact the molten aluminum, preventing molten aluminum from sticking and further improving flow rate control precision.

[0037] 2. The aluminum liquid sealed tank is connected to an inert gas cylinder via an air pump. The air pump changes the internal pressure of the aluminum liquid sealed tank to adjust the static pressure of the aluminum liquid, thereby changing the flow rate of the aluminum liquid at the outlet. Through the coordinated regulation of the air pump and the electromagnetic coil, the aluminum liquid flow rate can be controlled with an accuracy error of no more than 0.5%, significantly improving control accuracy compared to existing technologies. Similarly, during the static pressure regulation process, only the inert gas contacts the aluminum liquid, preventing aluminum liquid adhesion and oxidation, and the response speed is less than 0.3 seconds.

[0038] 3. The present invention isolates the molten aluminum in the molten aluminum conveying tank from the external air through a sealing mechanism to prevent the molten aluminum from being oxidized.

[0039] 4. The coordinated regulation of the air pump and electromagnetic coil falls under the "fine control" component of this invention. This invention also incorporates a "coarse control" structure for the aluminum liquid flow rate at the raw liquid inlet, enabling wide-range flow rate regulation. Specifically, an elastic connecting band is positioned at the raw liquid inlet. A curved adjustment portion, capable of rotating to adjust the outer diameter, presses down on the elastic band, thereby adjusting the gap between the elastic band and the raw liquid inlet and controlling the aluminum liquid flow rate. The elastic band is a flexible fabric layer woven from high-silica fiber, offering high-temperature resistance, sufficient elasticity, and resistance to adhesion to the aluminum liquid. This prevents aluminum liquid from adhering to the band during flow rate regulation, ensuring precise flow rate regulation. The outer diameter of the curved adjustment portion gradually increases from the smallest end to the largest end. Compared to existing tapered plugs, this allows for more precise adjustment of the gap between the elastic band and the raw liquid inlet, significantly improving regulation accuracy. The synergistic effect of the "coarse control" and "fine control" components of this invention ensures a flow rate regulation error of no more than 0.2%. The quality qualification rate of aluminum castings after molding is correspondingly increased to more than 99.7%. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0041] Figure 1 This is a structural diagram of Example 1;

[0042] Figure 2 Schematic diagram of the Venturi tube structure;

[0043] Figure 3 This is the guide groove layout diagram;

[0044] Figure 4 This is the layout diagram of the reduction motor;

[0045] Figure 5 Schematic diagram of the pressure equalizing plate structure;

[0046] Figure 6 This is a structural diagram of Example 2;

[0047] Figure 7 This is the state diagram of the second position of the adjustment wheel;

[0048] Figure 8 This is the state diagram of the first position of the adjustment wheel;

[0049] Among them, 1. Aluminum liquid sealing tank; 101. Aluminum liquid inlet; 102. Aluminum liquid outlet; 2. Venturi tube; 3. Spiral flow channel; 4. Electromagnetic coil; 5. Box; 6. Insulation sleeve; 7. Connecting section; 8. Air pump; 9. Pressure equalizing plate; 10. Aluminum liquid conveying trough; 11. Conical plug; 12. Connecting rod; 13. Coupling; 14. Reducer motor; 15. First mounting seat; 16. Second mounting seat; 17. Sealing plate; 18. Elastic connecting belt; 19. Raw liquid inlet; 20. Adjusting wheel; 21. Arc-shaped adjusting part; 2101. End with maximum outer diameter; 2102. End with minimum outer diameter; 22. Arc-shaped connecting part; 23. Guide groove; 24. Inert gas cylinder. DETAILED DESCRIPTION

[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0051] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0052] Example 1

[0053] like Figure 1-Figure 5 As shown, the present invention provides an aluminum liquid flow control and stabilization system, comprising:

[0054] The aluminum liquid sealed tank 1 has an aluminum liquid inlet 101 and an aluminum liquid outlet 102;

[0055] The venturi tube 2 has one end connected to the molten aluminum outlet 102 and the other end connected to the grouting assembly, which is used to inject grout into the casting. The interior of the venturi tube 2 defines a spiral flow channel 3 along its length.

[0056] The electromagnetic coil 4 is wound around the outside of the venturi tube 2 along the length direction of the venturi tube 2. The electromagnetic coil 4 is electrically connected to the variable frequency power supply and can generate an alternating magnetic field corresponding to the venturi tube 2 and drive the aluminum liquid to flow along the spiral flow channel 3.

[0057] The control center is electrically connected to the variable frequency power supply, and the control center adjusts the flow speed of the aluminum liquid in the spiral flow channel 3 by controlling the frequency of the variable frequency power supply;

[0058] The infrared sensor is connected to the control center for communication. The infrared sensor is used to detect the thickness of the casting and provide feedback to the control center, which then adjusts the flow rate of the molten aluminum accordingly.

[0059] In this embodiment, it also includes:

[0060] The box body 5 defines an installation chamber therein and has an upper opening and a lower opening communicating with the installation chamber; the other end of the venturi tube 2 passes through the upper opening and the lower opening sequentially from top to bottom and extends to the outside;

[0061] The heat-insulating sleeve 6 is located in the installation chamber and is sleeved on the outside of the venturi tube 2 ; the electromagnetic coil 4 is wound around the outside of the heat-insulating sleeve 6 , and the upper and lower ends of the electromagnetic coil 4 are respectively connected to the upper and lower surfaces of the box 5 .

[0062] In this embodiment, it also includes:

[0063] The connecting section 7 is funnel-shaped, one end of which is connected to the aluminum liquid outlet 102, and the other end of which is connected to the upper opening.

[0064] In this embodiment, it also includes:

[0065] One end of the air pump 8 is connected to the top of the aluminum liquid sealed tank 1, and the other end is connected to the inert gas cylinder 24. The air pump 8 is electrically connected to the control center, and the control center adjusts the static pressure of the aluminum liquid in the aluminum liquid sealed tank 1 by controlling the power of the air pump 8.

[0066] In this embodiment, it also includes:

[0067] The pressure equalizing plate 9 is horizontally arranged in the aluminum liquid sealing tank 1. The pressure equalizing plate 9 is located between the other end of the air pump 8 and the liquid surface of the aluminum liquid. The pressure equalizing plate 9 is provided with a plurality of air holes on the upper and lower surfaces.

[0068] In this embodiment, it also includes:

[0069] The molten aluminum conveying trough 10 is connected to the molten aluminum inlet 101 at one end and to the raw liquid inlet 19 at the other end. A conical plug 11 is provided at the raw liquid inlet 19. This plug is connected to a reduction motor 14 via a connecting rod 12 and a coupling 13. The motor drives the plug 11 axially, thereby achieving coarse control of the molten aluminum flow at the raw liquid inlet 19. The reduction motor 14 is mounted on a first mounting seat 15, and the connecting rod 12 is mounted on a guide groove 23. The guide groove 23 is arranged along the direction of movement of the conical plug 11 and is located on a second mounting seat 16.

[0070] Example 2

[0071] like Figure 6-Figure 8 As shown, compared with Example 1, this embodiment does not include structures such as the conical plug 11 and the reduction motor 14, and further includes:

[0072] The sealing mechanism is sealingly provided on the molten aluminum conveying trough 10 and is used to isolate the molten aluminum in the molten aluminum conveying trough 10 from the external air.

[0073] In this embodiment, the sealing mechanism includes:

[0074] The sealing plate 17 is sealed on the aluminum liquid conveying trough 10, and a mounting gap is opened between the sealing plate 17 and the raw liquid inlet 19;

[0075] The elastic connecting band 18 is sealed within the installation gap, and its ends are respectively connected to the sealing plates 17 on both sides. In this embodiment, the sealing plates 17 extend above the raw liquid inlet 19. The fixing method and fixing position of the sealing plates 17 can be flexibly set, for example, they can be provided with a bracket, fixed to the sealed tank or on the ground, which is not limited here;

[0076] The adjusting mechanism is rotatably arranged above the elastic connecting belt 18. When the adjusting mechanism is rotated to the first position, the adjusting mechanism presses down the elastic connecting belt 18 and forms a minimum gap between the elastic connecting belt 18 and the raw liquid inlet 19; when the adjusting mechanism is rotated to the second position, the adjusting mechanism presses down the elastic connecting belt 18 and forms a maximum gap between the elastic connecting belt 18 and the raw liquid inlet 19.

[0077] In this embodiment, the elastic connecting belt 18 is a flexible cloth layer woven from high-silica fiber.

[0078] In this embodiment, the adjustment mechanism includes:

[0079] The adjusting wheel 20 is rotatably arranged above the elastic connecting belt 18 and is connected to the driving motor. The adjusting wheel 20 is concentrically provided with an arc-shaped adjusting portion 21 with an outer diameter gradually increasing. Figure 7 As shown, the arc-shaped adjustment portion is generally located on the right side of the adjusting wheel 20, and its arc size is approximately 180°. The bottom end of the arc-shaped adjustment portion is the end with the smallest outer diameter 2102, and the top end is the end with the largest outer diameter 2101. When the end with the largest outer diameter 2101 of the arc-shaped adjustment portion 21 presses down the elastic connecting band 18, the adjusting wheel 20 rotates to the first position accordingly; when the end with the smallest outer diameter 2102 of the arc-shaped adjustment portion 21 presses down the elastic connecting band 18, the adjusting wheel 20 rotates to the second position accordingly.

[0080] In this embodiment, the arcuate connecting portion 22 is provided at the smallest outer diameter end 2102 and the largest outer diameter end 2101 of the arcuate adjusting portion 21. The outer diameter of the adjusting wheel 20 is smaller than the smallest outer diameter end 2102 of the arcuate adjusting portion 21. One end of the arcuate connecting portion 22 is connected to the adjusting wheel 20, and the other end is connected to the largest outer diameter end 2101 or the smallest outer diameter end 2102 of the arcuate adjusting portion 21. The arcuate connecting portion 22 is used to prevent the arcuate adjusting portion from damaging the elastic connecting band 18.

[0081] The working process is described in detail below in conjunction with Example 2:

[0082] 1. Rough control of aluminum liquid flow rate

[0083] like Figure 7As shown, at this time, the outer diameter minimum end 2102 of the arc-shaped adjustment portion presses down the elastic connecting belt 18, the adjusting wheel 20 is in the second position, and the maximum gap is formed between the elastic connecting belt 18 and the raw liquid inlet 19; when the aluminum liquid flow required by the casting becomes smaller, the driving motor drives the adjusting wheel 20 to rotate in the clockwise direction. During the rotation, the outer diameter of the arc-shaped adjustment portion in contact with the elastic connecting belt 18 gradually increases, so the position where the elastic connecting belt 18 presses down gradually decreases, and the gap between the elastic connecting belt 18 and the raw liquid inlet 19 also gradually decreases. When the adjusting wheel 20 rotates 180° clockwise, as shown Figure 8 As shown, the end 2101 of the arc-shaped adjustment portion with the largest outer diameter presses down on the elastic connecting band 18, and the adjustment wheel 20 is in the first position, forming a minimum gap between the elastic connecting band 18 and the raw liquid inlet 19. In fact, the minimum gap can be set to 0, in which case the aluminum liquid flow can be cut off.

[0084] 2. Precision control of aluminum liquid flow rate

[0085] Precise control of the molten aluminum flow rate is achieved through coordinated control of the air pump 8 and the alternating current power supply. Specifically, when the molten aluminum flow rate needs to be increased, the power of the air pump 8 is first increased, increasing the inert gas pressure within the aluminum sealing tank 1, thereby increasing the static pressure of the molten aluminum. When the molten aluminum flow rate approaches the target flow rate, the frequency of the alternating current power supply is increased, increasing the magnetic field strength at the venturi tube 2, thereby increasing the flow rate of the molten aluminum in the venturi tube 2 and ultimately accurately reaching the target flow rate. When the molten aluminum flow rate needs to be reduced, this is also achieved by controlling the air pump 8 and the alternating current power supply, and the operating principle is similar to the above.

[0086] The following is the detection of the adjustment error of the aluminum liquid flow

[0087] Experimental data set 1:

[0088] Using the structure disclosed in Example 1 (without adjusting the conical plug 11 in Example 1), the aluminum liquid flow rate at the other end of the Venturi tube 2 was detected and compared with the target aluminum liquid flow rate. The test results are as follows:

[0089] The aluminum liquid flow rate error is 0.36%-0.43%, the aluminum casting quality pass rate is 98.2%, and the overall response speed average is 0.2s.

[0090] Experimental data set 2:

[0091] Using the structure disclosed in Example 2, the aluminum liquid flow rate at the other end of the Venturi tube 2 was detected and compared with the target aluminum liquid flow rate. The detection results are as follows:

[0092] The aluminum liquid flow rate error was 0.13%-0.15%, the aluminum casting quality pass rate was 99.8%, and the overall average response speed was 0.5s. The response speed was slightly lower than that of Example 1 due to the speed of the adjustment wheel 20. When the speed of the adjustment wheel 20 was increased, the maximum outer diameter of the arc-shaped adjustment portion was reduced, or the maximum clearance requirement was lowered, the overall response speed approached that of Example 1.

[0093] Experimental data set 3

[0094] The conical plug 11 disclosed in the prior art was used alone to detect the aluminum liquid flow rate at the aluminum liquid outlet 102 and compared with the target aluminum liquid flow rate. The detection results are as follows:

[0095] The aluminum liquid flow rate error is 6.8%-8.1%, the aluminum casting quality qualification rate is 92.5%, and the overall response speed average is 1.2s. Its response speed is greater than that of Example 1 and Example 2. The reason is that the axial movement of the conical seal 11 depends on the reduction motor 14, and its mechanical inertia will cause a longer response time.

[0096] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0097] The embodiments described above are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by persons skilled in the art should fall within the scope of protection defined by the claims of the present invention.

Claims

1. A molten aluminum flow control and stabilization system, characterized in that: include: A molten aluminum sealed tank (1) having an aluminum molten inlet (101) and an aluminum molten outlet (102); A venturi tube (2) is connected at one end to the aluminum liquid outlet (102) and at the other end to a grouting assembly, wherein the grouting assembly is used for grouting the casting, and a spiral flow channel (3) is defined inside the venturi tube (2) along its length direction; An electromagnetic coil (4) is wound around the outside of the Venturi tube (2) along the length direction of the Venturi tube (2), and the electromagnetic coil (4) is electrically connected to a variable frequency power supply, capable of generating an alternating magnetic field corresponding to the Venturi tube (2) and driving the aluminum liquid to flow along the spiral flow channel (3); A control center is electrically connected to the variable frequency power supply, and the control center adjusts the flow speed of the aluminum liquid in the spiral flow channel (3) by controlling the frequency of the variable frequency power supply.

2. The aluminum liquid flow control and stabilization system according to claim 1, characterized in that: Also includes: The box (5) defines an installation chamber inside, and the box (5) has an upper opening and a lower opening communicating with the installation chamber; the other end of the venturi tube (2) passes through the upper opening and the lower opening in sequence from top to bottom and extends to the outside; The heat-insulating sleeve (6) is located in the installation chamber and is sleeved on the outside of the Venturi tube (2); the electromagnetic coil (4) is wound on the outside of the heat-insulating sleeve (6), and the upper and lower ends of the electromagnetic coil (4) are respectively connected to the upper and lower surfaces of the box (5).

3. The aluminum liquid flow control and stabilization system according to claim 2, characterized in that: Also includes: The connecting section (7) is funnel-shaped, one end of which is connected to the aluminum liquid outlet (102) and the other end of which is connected to the upper opening.

4. The aluminum liquid flow control and stabilization system according to claim 2, characterized in that: Also includes: An air pump (8) is connected at one end to the top of the aluminum liquid sealed tank (1) and at the other end to the inert gas cylinder (24). The air pump (8) is electrically connected to a control center, and the control center adjusts the static pressure of the aluminum liquid in the aluminum liquid sealed tank (1) by controlling the power of the air pump (8).

5. The aluminum liquid flow control and stabilization system according to claim 4, characterized in that: Also includes: A pressure equalizing plate (9) is transversely arranged in the aluminum liquid sealing tank (1), and the pressure equalizing plate (9) is located between the other end of the air pump (8) and the liquid surface of the aluminum liquid. The pressure equalizing plate (9) is provided with a plurality of air holes on the upper and lower surfaces.

6. The aluminum liquid flow control and stabilization system according to claim 4, characterized in that: Also includes: Aluminum liquid conveying trough (10), one end of which is connected to the aluminum liquid inlet (101), and the other end of which is connected to the raw liquid inlet (19); A sealing mechanism is sealingly arranged on the molten aluminum conveying trough (10) and is used to isolate the molten aluminum in the molten aluminum conveying trough (10) from the external air.

7. The aluminum liquid flow control and stabilization system according to claim 6, characterized in that: The sealing mechanism comprises: A sealing plate (17) is sealingly arranged on the aluminum liquid conveying trough (10), and an installation gap is provided on the sealing plate (17) corresponding to the raw liquid inlet (19); an elastic connecting belt (18) sealed and arranged in the installation gap; The adjusting mechanism is rotatably arranged above the elastic connecting belt (18). When the adjusting mechanism is rotated to a first position, the adjusting mechanism presses down the elastic connecting belt (18) and forms a minimum gap between the elastic connecting belt (18) and the raw liquid inlet (19); when the adjusting mechanism is rotated to a second position, the adjusting mechanism presses down the elastic connecting belt (18) and forms a maximum gap between the elastic connecting belt (18) and the raw liquid inlet (19).

8. The aluminum liquid flow control and stabilization system according to claim 7, characterized in that: The elastic connecting belt (18) is a flexible cloth layer woven from high-silicon fiber.

9. The aluminum liquid flow control and stabilization system according to claim 7, characterized in that: The regulating mechanism comprises: An adjusting wheel (20) is rotatably arranged above the elastic connecting belt (18) and is transmission-connected to the driving motor. An arc-shaped adjusting portion (21) with a gradually increasing outer diameter is concentrically arranged on the adjusting wheel (20). When the end (2101) with the largest outer diameter of the arc-shaped adjusting portion (21) presses down the elastic connecting belt (18), the adjusting wheel (20) correspondingly rotates to a first position; when the end (2102) with the smallest outer diameter of the arc-shaped adjusting portion (21) presses down the elastic connecting belt (18), the adjusting wheel (20) correspondingly rotates to a second position.

10. The aluminum liquid flow control and stabilization system according to claim 9, characterized in that: The arc-shaped adjusting portion (21) is provided with an arc-shaped connecting portion (22) at the end (2102) with the smallest outer diameter and the end (2101) with the largest outer diameter. The outer diameter of the adjusting wheel (20) is smaller than the end (2102) with the smallest outer diameter of the arc-shaped adjusting portion (21). One end of the arc-shaped connecting portion (22) is connected to the adjusting wheel (20), and the other end is connected to the end (2101) with the largest outer diameter or the end (2102) with the smallest outer diameter of the arc-shaped adjusting portion (21).

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