A molten aluminum smelting furnace stirring device
By installing a rotating shaft and stirring components in the aluminum molten metal melting furnace, the problems of cold and hot zones within the furnace were solved, achieving uniform heating of the melt and improving the melting quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING TIANQI ALUMINUM CO LTD
- Filing Date
- 2025-08-05
- Publication Date
- 2026-06-19
AI Technical Summary
In existing aluminum molten metal melting furnaces, heat is naturally transferred through conduction and convection when the molten metal is stirred, resulting in cold and hot zones inside the furnace. Local overheating may burn aluminum alloy elements, while aluminum molten metal in cold zones is prone to solidification into nodules, blocking the flow port and reducing casting quality.
A stirring device for an aluminum molten metal smelting furnace is designed. By installing a rotating shaft and stirring components on the furnace body, and using a drive component to drive the rotating shaft to rotate, the molten metal is effectively stirred, thus avoiding the formation of cold and hot zones.
This achieves full contact between the melt and heat, avoids the occurrence of cold and hot zones, and improves the melting quality and casting effect.
Smart Images

Figure CN224382173U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aluminum smelting technology, and more specifically, to an agitator for an aluminum molten metal smelting furnace. Background Technology
[0002] An aluminum molten metal furnace is an industrial furnace used to heat and melt aluminum and aluminum alloy raw materials, adjust their composition, remove impurities, and ultimately obtain liquid aluminum that meets the requirements. It is widely used in aluminum processing, casting, automotive parts, aerospace, and other fields. For example, the molten metal furnace proposed in publication number "CN207472024U" includes: a furnace body, which contains a reaction zone and a molten pool zone formed sequentially from top to bottom; within the reaction zone, a blowing zone and a settling zone are formed sequentially along the flow direction of the melt in the molten pool zone; a molten metal flue connected to the top of the settling zone; a material inlet located at the top of the blowing zone; a first tuyer located on the side wall of the blowing zone; a second tuyer located on the side wall of the molten metal flue; an air jet located on the side wall of the molten pool zone corresponding to the blowing zone; a slag outlet located on the side wall of the molten pool zone; and a melt outlet located on the side wall of the molten pool zone.
[0003] However, in the above technical solution, when the above melting furnace agitates the flowing melt, the heat is transferred naturally only through conduction and convection. Cold and hot zones are likely to appear in the furnace. Local overheating may burn aluminum alloy elements, and the aluminum liquid in the cold zone is prone to solidify into nodules, which may block the flow port or reduce the casting quality. Utility Model Content
[0004] The main purpose of this utility model is to provide an agitation device for an aluminum molten metal furnace, which can effectively solve the problems in the background art where, when the molten metal is agitated, heat is transferred naturally through conduction and convection, cold and hot zones easily appear in the furnace, local overheating may burn aluminum alloy elements, and aluminum molten metal in cold zones is prone to solidify into nodules, blocking the flow port or reducing casting quality.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] An agitation device for an aluminum molten metal smelting furnace includes a smelting furnace body, a rotating shaft rotatably mounted through one side of the upper surface of the smelting furnace body, and an agitation component for agitating the aluminum molten metal at the lower end of the rotating shaft.
[0007] The upper surface of the smelting furnace body is provided with a drive assembly for driving the rotating shaft to rotate.
[0008] Preferably, the agitation assembly includes a mounting sleeve, which is fixedly installed at the lower end of the rotating shaft. A mounting groove is formed through the inner wall surface of the mounting sleeve, and a mounting block is provided inside the mounting groove. A slanted rod is fixedly installed on one side of the lower surface of the mounting block.
[0009] Preferably, a horizontal shaft is rotatably mounted between the two sides of the inner wall of the mounting groove, the mounting block is sleeved on the middle of the horizontal shaft body, and a half-tooth ring is fixedly mounted on one side of the mounting block;
[0010] A cavity is formed through the upper surface of the horizontal shaft. The lower end of the cavity is connected to the interior of the mounting sleeve. A rack is movably arranged inside the cavity, and the rack meshes with a half-tooth ring.
[0011] Preferably, two connecting blocks are fixedly installed on the inner wall of the cavity, and connecting rods are slidably disposed through the upper surfaces of the two connecting blocks. A support block is fixedly installed on the upper ends of the two connecting rods, and the rack is fixedly installed on the lower surface of the support block.
[0012] A bracket is fixedly installed on the upper surface of the smelting furnace body. An electric actuator is fixedly installed at the top inside the bracket. A positioning block is fixedly installed at the output end of the electric actuator. A connecting shaft is rotatably installed at the lower end of the positioning block. The lower end of the connecting shaft is fixedly connected to the support block.
[0013] Preferably, a sealing ring is fixedly installed inside the cavity, and the output end of the electric actuator passes through the sealing ring.
[0014] Preferably, the drive assembly includes a motor, which is fixedly mounted on one side of the upper surface of the smelting furnace body. A first pulley is sleeved on the shaft of the motor output shaft, and a second pulley is sleeved on one side of the shaft. A belt is sleeved on the surfaces of the first pulley and the second pulley.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] (1) By using the furnace body, the workers can melt aluminum into molten aluminum. During the melting process, the workers activate the drive component to drive the rotating shaft to rotate. The rotating shaft can drive the mounting sleeve and mounting block to rotate, so that the inclined rod can rotate with the rotating shaft as the reference and stir the melt in the furnace body, so that the melt can fully contact the heat and avoid cold and hot zones in the furnace, thereby improving the melting quality. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of an agitator for an aluminum molten metal smelting furnace according to the present invention.
[0018] Figure 2 This is a top view schematic diagram of the stirring device for an aluminum molten metal smelting furnace according to the present invention;
[0019] Figure 3 This utility model relates to an agitator for an aluminum molten metal furnace. Figure 2 Schematic diagram of the cross-sectional structure at point AA;
[0020] Figure 4 This utility model relates to an agitator for an aluminum molten metal furnace. Figure 2 Schematic diagram of the cross-sectional structure at point BB;
[0021] Figure 5 This utility model relates to an agitator for an aluminum molten metal furnace. Figure 3 Enlarged schematic diagram of the structure at point A;
[0022] Figure 6 This utility model relates to an agitator for an aluminum molten metal furnace. Figure 4 Enlarged schematic diagram of the structure at point B.
[0023] In the diagram: 1. Furnace body; 2. Rotating shaft; 3. Agitator assembly; 301. Mounting sleeve; 302. Mounting groove; 303. Mounting block; 304. Diagonal rod; 4. Drive assembly; 401. Motor; 402. First pulley; 403. Second pulley; 404. Belt; 5. Horizontal shaft; 6. Half gear ring; 7. Cavity; 8. Rack; 9. Sealing ring; 10. Connecting block; 11. Connecting rod; 12. Support block; 13. Bracket; 14. Electric actuator; 15. Positioning block; 16. Connecting shaft. Detailed Implementation
[0024] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.
[0025] like Figures 1-6 As shown, an aluminum molten metal smelting furnace stirring device includes a smelting furnace body 1, a rotating shaft 2 is rotatably mounted through one side of the upper surface of the smelting furnace body 1, and an stirring component 3 for stirring the aluminum molten metal is provided at the lower end of the rotating shaft 2.
[0026] The upper surface of the smelting furnace body 1 is provided with a drive assembly 4 for driving the rotating shaft 2 to rotate.
[0027] The stirring component 3 includes a mounting sleeve 301, which is fixedly installed at the lower end of the rotating shaft 2. A mounting groove 302 is provided through the inner wall surface of the mounting sleeve 301. A mounting block 303 is provided inside the mounting groove 302. A diagonal rod 304 is fixedly installed on one side of the lower surface of the mounting block 303.
[0028] Workers can melt aluminum into molten aluminum by using the furnace body 1. During the melting process, workers activate the drive component 4 to drive the rotating shaft 2 to rotate. The rotating shaft 2 can drive the mounting sleeve 301 and the mounting block 303 to rotate, so that the inclined rod 304 can rotate around the rotating shaft 2 and stir the melt in the furnace body 1, so that the melt can fully contact the heat, avoid cold and hot zones in the furnace, and improve the melting quality.
[0029] In another embodiment of the present invention, a horizontal shaft 5 is rotatably installed between the two sides of the inner wall of the mounting groove 302, a mounting block 303 is sleeved on the middle part of the shaft body of the horizontal shaft 5, and a half gear ring 6 is fixedly installed on one side of the mounting block 303.
[0030] A cavity 7 is provided through the upper surface of the horizontal shaft 5. The lower end of the cavity 7 is connected to the interior of the mounting sleeve 301. A rack 8 is movably arranged inside the cavity 7, and the rack 8 meshes with the half-gear ring 6.
[0031] Two connecting blocks 10 are fixedly installed on the inner wall of the cavity 7. Connecting rods 11 are slidably disposed through the upper surface of the two connecting blocks 10. Support block 12 is fixedly installed on the upper end of the two connecting rods 11. Rack 8 is fixedly installed on the lower surface of support block 12.
[0032] A bracket 13 is fixedly installed on the upper surface of the smelting furnace body 1. An electric push rod 14 is fixedly installed at the top inside the bracket 13. A positioning block 15 is fixedly installed at the output end of the electric push rod 14. A connecting shaft 16 is rotatably installed at the lower end of the positioning block 15. The lower end of the connecting shaft 16 is fixedly connected to the support block 12.
[0033] By fixing the support block 12 to the upper end of the two connecting rods 11, the rack 8 can rotate with the rotating shaft 2, and the rack 8 can always mesh with the half gear ring 6. The operator starts the electric push rod 14, and its output end drives the support block 12 to move along the direction of the connecting rod 11, so that the rack 8 moves with the support block 12. Under the meshing action of the rack 8 and the half gear ring 6, the mounting block 303 can rotate with the horizontal axis 5 as the reference, so that the inclined rod 304 can rotate with the horizontal axis 5 as the reference, which increases the horizontal coverage range of the inclined rod 304 when stirring and improves the stirring effect.
[0034] By setting the connecting shaft 16, the rack 8 can rotate relative to the electric actuator 14, thus avoiding jamming.
[0035] In another embodiment of this utility model, a sealing ring 9 is fixedly installed inside the cavity 7, and the output end of the electric push rod 14 passes through the sealing ring 9.
[0036] By setting a sealing ring 9, heat is prevented from escaping from the cavity 7 into the furnace body 1, thus preventing heat loss.
[0037] In another embodiment of the present invention, the drive assembly 4 includes a motor 401, which is fixedly installed on one side of the upper surface of the smelting furnace body 1. The output shaft of the motor 401 is fitted with a first pulley 402, and a second pulley 403 is fitted on one side of the shaft of the rotating shaft 2. The surfaces of the first pulley 402 and the second pulley 403 are together fitted with a belt 404.
[0038] The staff starts the motor 401, which causes its output shaft to drive the first pulley 402 to rotate. Under the transmission action of the belt 404, the second pulley 403 can drive the rotating shaft 2 to rotate.
[0039] The working principle of the stirring device for an aluminum molten metal furnace:
[0040] In use, by fixing the support block 12 to the upper end of the two connecting rods 11, the rack 8 can rotate with the rotating shaft 2, so that the rack 8 can always mesh with the half gear ring 6. The operator starts the electric push rod 14, so that its output end drives the support block 12 to move along the direction of the connecting rod 11, thereby making the rack 8 move with the support block 12. Under the meshing action of the rack 8 and the half gear ring 6, the mounting block 303 can rotate with the horizontal axis 5 as the reference, so that the inclined rod 304 can rotate with the horizontal axis 5 as the reference, increasing the horizontal coverage range of the inclined rod 304 when stirring and improving the stirring effect.
[0041] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. Any obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.
Claims
1. A molten metal stirring device for a smelting vessel, comprising a smelting vessel body (1), characterised in that: A rotating shaft (2) is rotatably installed on one side of the upper surface of the smelting furnace body (1), and an agitation component (3) for agitating the molten aluminum is provided at the lower end of the rotating shaft (2). The upper surface of the furnace body (1) is provided with a drive assembly (4) for driving the rotating shaft (2) to rotate.
2. A molten metal stirrer for a smelting vessel as claimed in claim 1 wherein: The stirring component (3) includes a mounting sleeve (301), which is fixedly installed at the lower end of the rotating shaft (2). The inner wall surface of the mounting sleeve (301) is provided with a mounting groove (302), and a mounting block (303) is provided inside the mounting groove (302). A diagonal rod (304) is fixedly installed on one side of the lower surface of the mounting block (303).
3. A molten metal stirrer for a smelting vessel as claimed in claim 2, wherein: A horizontal shaft (5) is rotatably installed between the two sides of the inner wall of the mounting groove (302), and the mounting block (303) is sleeved on the middle of the shaft of the horizontal shaft (5). A half gear ring (6) is fixedly installed on one side of the mounting block (303). A cavity (7) is provided through the upper surface of the horizontal shaft (5). The lower end of the cavity (7) is connected to the interior of the mounting sleeve (301). A rack (8) is movably arranged in the cavity (7), and the rack (8) meshes with the half-tooth ring (6).
4. A molten metal stirrer for a smelting vessel as claimed in claim 3, wherein: Two connecting blocks (10) are fixedly installed on the inner wall of the cavity (7). Connecting rods (11) are slidably arranged through the upper surfaces of the two connecting blocks (10). Support blocks (12) are fixedly installed on the upper ends of the two connecting rods (11). The rack (8) is fixedly installed on the lower surface of the support block (12). A bracket (13) is fixedly installed on the upper surface of the smelting furnace body (1). An electric push rod (14) is fixedly installed at the top inside the bracket (13). A positioning block (15) is fixedly installed at the output end of the electric push rod (14). A connecting shaft (16) is rotatably installed at the lower end of the positioning block (15). The lower end of the connecting shaft (16) is fixedly connected to the support block (12).
5. A molten metal stirrer for a smelting vessel as claimed in claim 4 wherein: A sealing ring (9) is fixedly installed inside the cavity (7), and the output end of the electric push rod (14) passes through the sealing ring (9).
6. A molten metal stirrer for a smelting vessel as claimed in claim 1 wherein: The drive assembly (4) includes a motor (401), which is fixedly installed on one side of the upper surface of the smelting furnace body (1). The output shaft of the motor (401) is fitted with a first pulley (402), and the shaft of the rotating shaft (2) is fitted with a second pulley (403). The surfaces of the first pulley (402) and the second pulley (403) are fitted with a belt (404).