Electromagnetic stirring device for aluminum melting furnace

Abstract

The utility model relates to non ferrous metal production equipment technical field discloses an electromagnetic stirring device for aluminium smelting furnace, including bottom plate, stirring box, smelting furnace body and electromagnetic coil, the stirring box lower end fixedly arranged with stirring subassembly, the electromagnetic coil and smelting furnace body between opposite side upper fixedly arranged with buffer assembly, the stirring subassembly includes drive motor, connecting box and four electric push rods, drive motor output fixedly arranged with rotating block, the rotating block lower end surface middle part is set up with rotating hole, the connecting box upper end surface middle part fixedly arranged with universal ball head, the connecting box lower end surface middle part fixedly arranged with stirring shaft, the stirring shaft all around evenly set up with a plurality of stirring vane, stirring disc is fixedly arranged with the stirring shaft lower extreme. In the utility model, improve the homogeneity and efficiency in the process of aluminium melt and carry out stirring, and reduce the high temperature damage of electromagnetic coil, improve the service life of electromagnetic coil.

Description

Technical Field

[0001] This utility model relates to the field of non-ferrous metal production equipment technology, and in particular to an electromagnetic stirring device for an aluminum furnace. Background Technology

[0002] An aluminum furnace is an industrial device used to heat aluminum and aluminum alloy raw materials to a molten state. It is widely used in the aluminum processing field. According to its function, it can be divided into melting furnace and holding furnace. It is necessary to ensure that the aluminum liquid temperature is uniform and the composition is stable. Among them, electromagnetic stirring is a key device to improve the quality of aluminum liquid. By generating an alternating magnetic field through an electromagnetic coil, eddy currents are induced in the aluminum liquid, and electromagnetic force is used to drive the flow of aluminum liquid, which greatly improves the stirring efficiency.

[0003] In existing aluminum furnaces, after heating, an electromagnetic coil is installed on the furnace. When alternating current is applied, an alternating magnetic field is generated, which penetrates the furnace wall and acts on the molten aluminum, inducing eddy currents inside. The eddy currents are driven by electromagnetic force in the magnetic field, causing the molten aluminum to circulate in a specific direction. However, during the stirring process of the molten aluminum, it is not possible to fully stir the molten aluminum. Dead zones will appear in some parts of the eddy currents, resulting in uneven stirring of the molten aluminum.

[0004] Therefore, those skilled in the art have provided an electromagnetic stirring device for aluminum furnaces to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an electromagnetic stirring device for aluminum furnaces. This device improves the uniformity and efficiency of stirring molten aluminum inside the furnace body, reduces damage caused by direct contact between the electromagnetic coil and the furnace body, and extends the service life of the electromagnetic coil.

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

[0007] An electromagnetic stirring device for an aluminum furnace includes a base plate, a stirring box, a furnace body and an electromagnetic coil. A stirring component is fixedly installed at the lower end of the stirring box, and a buffer component is fixedly installed above the electromagnetic coil relative to the furnace body.

[0008] The stirring assembly includes a drive motor, a connecting box, and four electric push rods. A rotating block is fixedly installed at the output end of the drive motor. A rotating hole is opened in the middle of the lower end face of the rotating block. A universal ball head is fixedly installed in the middle of the upper end face of the connecting box. A stirring shaft is fixedly installed in the middle of the lower end face of the connecting box. Multiple stirring blades are evenly arranged around the stirring shaft. A stirring plate is fixedly installed at the lower end of the stirring shaft.

[0009] The buffer assembly includes a heat insulation plate and eight fixing plates. Hydraulic rods are fixedly installed on each of the eight fixing plates on opposite sides of each other, and reset springs are fixedly sleeved around the four hydraulic rods.

[0010] Furthermore, the universal ball head rotates inside the rotating hole, and the four electric push rods are evenly fixed around the connecting box.

[0011] Furthermore, four of the eight fixing plates, located on the inner side, are evenly fixed around the center of the heat insulation plate, which is made of high-temperature resistant ceramic fiber.

[0012] Furthermore, a support frame is fixedly installed in the middle of both sides of the base plate, a connecting rod is fixedly installed at the upper end of the mixing box, an electric slide rail is fixedly installed on the upper inner side of the support frame, and a connecting block is fixedly installed on both sides of the connecting rod.

[0013] Furthermore, a tilting opening is provided in the middle of the upper end face of the furnace body near the front end, and handles are fixedly provided on the upper part of the middle of both sides of the furnace body.

[0014] Furthermore, a control panel is fixedly installed in the middle of one side of the front end face of the support frame.

[0015] This utility model has the following beneficial effects:

[0016] 1. The present invention proposes an electromagnetic stirring device for an aluminum furnace. By adjusting the stirring angle of the stirring component located inside the furnace body below the stirring box and cooperating with the electromagnetic coil, the aluminum liquid inside the furnace body can achieve composite flow in both horizontal and vertical directions. This breaks the stirring dead zone formed by the unidirectional flow of aluminum liquid, making the aluminum liquid more uniformly heated and mixed, and improving the stirring efficiency.

[0017] 2. The electromagnetic stirring device for an aluminum furnace proposed in this utility model avoids direct contact and heat conduction between the furnace body and the electromagnetic coil by setting a buffer component between them. When the furnace body is slightly deformed and the electromagnetic coil vibrates, the device buffers the displacement to maintain a reasonable distance, thereby reducing damage to the electromagnetic coil and improving its service life. Attached Figure Description

[0018] Figure 1 This is an axonometric view of the present invention;

[0019] Figure 2 This is a cross-sectional axial view of the present invention;

[0020] Figure 3 This is a schematic diagram of the stirring assembly of this utility model from the axial side.

[0021] Figure 4This is a schematic diagram of the buffer assembly of this utility model from the isometric view.

[0022] Figure 5 This is an enlarged schematic diagram of point A of this utility model.

[0023] Legend:

[0024] 1. Base plate; 2. Support frame; 3. Electric slide rail; 4. Connecting block; 5. Connecting rod; 6. Stirring box; 7. Buffer assembly; 8. Stirring assembly; 9. Handle; 10. Control panel; 11. Furnace body; 12. Pour port; 13. Electromagnetic coil; 701. Heat insulation plate; 702. Hydraulic rod; 703. Return spring; 704. Fixing plate; 801. Drive motor; 802. Rotating block; 803. Connecting box; 804. Electric push rod; 805. Stirring shaft; 806. Stirring blade; 807. Stirring disc; 808. Rotating hole; 809. Universal ball joint. Detailed Implementation

[0025] 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.

[0026] Reference Figures 1-5 An embodiment of this utility model is provided: an electromagnetic stirring device for an aluminum furnace, including a base plate 1, a stirring box 6, a furnace body 11 and an electromagnetic coil 13. A stirring component 8 is fixedly provided at the lower end of the stirring box 6, and a buffer component 7 is fixedly provided above the electromagnetic coil 13 relative to the furnace body 11.

[0027] A support frame 2 is fixedly installed in the middle of both sides of the base plate 1. A connecting rod 5 is fixedly installed at the top of the mixing box 6. An electric slide rail 3 is fixedly installed on the upper side of the inner side of the support frame 2. A connecting block 4 is fixedly installed on both sides of the connecting rod 5. A tilting port 12 is opened in the middle of the upper end face of the furnace body 11 near the front end. A handle 9 is fixedly installed in the middle of both sides of the furnace body 11 near the top. A control panel 10 is fixedly installed in the middle of one side of the front end face of the support frame 2.

[0028] Specifically, the stirring assembly 8 at the lower end of the stirring box 6 improves the stirring efficiency and uniformity of the molten aluminum. The buffer assembly 7 between the electromagnetic coil 13 and the furnace body 11 reduces direct contact between the electromagnetic coil 13 and the furnace body 11, thus reducing damage and extending the service life of the electromagnetic coil 13. The stirring box 6 is fixed to the electric slide rail 3 on the upper side of the inner side of the support frame 2 via the connecting blocks 4 on both sides of the connecting rod 5 at the upper end of the bottom plate 1. This facilitates the raising and lowering of the stirring box 6. During stirring, it descends to the inside of the furnace body 11 and rises after stirring. The pouring port 12 facilitates the discharge of the molten aluminum inside the furnace body 11 after thorough stirring. The handle 9 allows for easy movement of the furnace body 11. The control panel 10 facilitates the control of the drive motor 801 and the electric push rod 804.

[0029] Reference Figure 1 , Figure 2 , Figure 3 , Figure 5 The stirring assembly 8 includes a drive motor 801, a connecting box 803, and four electric push rods 804. A rotating block 802 is fixedly installed at the output end of the drive motor 801. A rotating hole 808 is opened in the middle of the lower end face of the rotating block 802. A universal ball head 809 is fixedly installed in the middle of the upper end face of the connecting box 803. A stirring shaft 805 is fixedly installed in the middle of the lower end face of the connecting box 803. Multiple stirring blades 806 are evenly arranged around the stirring shaft 805. A stirring plate 807 is fixedly installed at the lower end of the stirring shaft 805.

[0030] The universal ball joint 809 rotates inside the rotating hole 808, and the four electric push rods 804 are evenly fixed around the connecting box 803.

[0031] Specifically, the rotating block 802, located at the output end of the drive motor 801, rotates. The universal ball joint 809 at the upper end of the connecting box 803 is located inside the rotating hole 808 at the lower end of the rotating block 802, allowing the connecting box 803 to connect to the rotating block 802. The electric push rod 804 around the connecting box 803 pushes the connecting box 803 to adjust its angle. The stirring shaft 805 at the lower end of the connecting box 803 rotates with the connecting box 803, adjusting its angle. The stirring blades 806 and stirring disc 807 around the stirring shaft 805 thoroughly stir the molten aluminum, breaking up dead zones and improving the uniformity and efficiency of the aluminum solution stirring.

[0032] Reference Figure 1 , Figure 2 , Figure 4The buffer assembly 7 includes a heat insulation plate 701 and eight fixing plates 704. Each of the eight fixing plates 704 is fixedly provided with a hydraulic rod 702 on one side opposite to the other. Each of the four hydraulic rods 702 is fixedly fitted with a return spring 703.

[0033] The eight fixing plates 704, of which the four inner fixing plates 704 are evenly fixed around the center of the heat insulation plate 701, which is made of high-temperature resistant ceramic fiber.

[0034] Specifically, the hydraulic rod 702 between the fixed plates 704, and the return spring 703 fixedly sleeved around the hydraulic rod 702, cause the fixed plates 704 to compress the hydraulic rod 702 and the return spring 703 to generate a springback reset. The inner fixed plate 704 is fixed to the heat insulation plate 701, which is fixedly sleeved around the furnace body 11. The outer fixed plate 704 is fixed to the electromagnetic coil 13, so that the electromagnetic coil 13 reduces direct contact with the furnace body 11 to avoid damage due to high temperature. It can spring back to maintain a reasonable distance and improve the service life of the electromagnetic coil 13.

[0035] Working principle: During the stirring of molten aluminum, the buffer assembly 7 around the furnace body 11 is fixed to the electromagnetic coil 13. When the furnace body 11 deforms slightly and the electromagnetic coil 13 vibrates, the hydraulic rod 702 and the return spring 703 between the fixing plates 704 in the buffer assembly 7 are squeezed and reset, maintaining the distance between the electromagnetic coil 13 and the furnace body 11, thus improving the service life of the electromagnetic coil 13. The connecting blocks 4 on both sides of the connecting plate on the stirring box 6 are connected to the electric slide rail 3 inside the support frame 2, so that the electric slide rail 3 drives the stirring box 6 to move downward and place it above the furnace body 11 through the connecting blocks 4, so that the stirring assembly 8 at the lower end of the stirring box 6... Located inside the furnace body 11, an alternating magnetic field is generated by an electromagnetic coil 13, inducing eddy currents in the molten aluminum. Electromagnetic force is used to drive the flow of the molten aluminum. The drive motor 801 in the stirring assembly 8 drives the rotating block 802 to rotate, causing the electric push rod 804 to push the connecting box 803. This causes the universal ball head 809 at the upper end of the connecting box 803 to rotate within the rotating hole 808 on the inner side of the rotating block 802, allowing the connecting box 803 to be adjusted at different angles. This drives the stirring blades 806 and stirring disc 807 around the stirring shaft 805 at the lower end of the connecting box 803 to break the stirring dead angle formed by the unidirectional flow of the molten aluminum, thereby improving the uniformity and efficiency of stirring the molten aluminum.

[0036] 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. An electromagnetic stirring device for an aluminum furnace, comprising a base plate (1), a stirring box (6), a furnace body (11), and an electromagnetic coil (13), characterized in that: A stirring assembly (8) is fixedly installed at the lower end of the stirring box (6), and a buffer assembly (7) is fixedly installed above the electromagnetic coil (13) and the furnace body (11). The stirring assembly (8) includes a drive motor (801), a connecting box (803), and four electric push rods (804). A rotating block (802) is fixedly installed at the output end of the drive motor (801). A rotating hole (808) is opened in the middle of the lower end face of the rotating block (802). A universal ball head (809) is fixedly installed in the middle of the upper end face of the connecting box (803). A stirring shaft (805) is fixedly installed in the middle of the lower end face of the connecting box (803). Multiple stirring blades (806) are evenly arranged around the stirring shaft (805). A stirring plate (807) is fixedly installed at the lower end of the stirring shaft (805). The buffer assembly (7) includes a heat insulation plate (701) and eight fixing plates (704). Each of the eight fixing plates (704) has a hydraulic rod (702) fixedly installed on one side opposite to the other. Each of the four hydraulic rods (702) is fitted with a reset spring (703).

2. The electromagnetic stirring device for an aluminum furnace according to claim 1, characterized in that: The universal ball joint (809) rotates inside the rotating hole (808), and the four electric push rods (804) are evenly fixed around the connecting box (803).

3. The electromagnetic stirring device for an aluminum furnace according to claim 1, characterized in that: The eight fixing plates (704) are evenly fixed in the middle of the heat insulation plate (701), with the four innermost fixing plates (704) being uniformly fixed in the middle of the heat insulation plate (701). The heat insulation plate (701) is made of high-temperature resistant ceramic fiber.

4. The electromagnetic stirring device for an aluminum furnace according to claim 1, characterized in that: A support frame (2) is fixedly installed in the middle of both sides of the base plate (1), a connecting rod (5) is fixedly installed at the upper end of the mixing box (6), an electric slide rail (3) is fixedly installed on the upper side of the inner side of the support frame (2), and a connecting block (4) is fixedly installed on both sides of the connecting rod (5).

5. The electromagnetic stirring device for an aluminum furnace according to claim 1, characterized in that: A tilting opening (12) is provided at the front end of the upper surface of the furnace body (11), and handles (9) are fixedly provided at the upper part of the middle of both sides of the furnace body (11).

6. The electromagnetic stirring device for an aluminum furnace according to claim 4, characterized in that: A control panel (10) is fixedly installed in the middle of one side of the front end face of the support frame (2).

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