High-strength regenerated aluminum alloy preparation device based on Mn-Cr composite modification

Abstract

The invention relates to the technical field of metal material processing, and discloses a Mn-Cr composite modification-based high-strength regenerated aluminum alloy preparation device which comprises a supporting seat, a cover plate is inserted into the top of the inner wall of the supporting seat, a smelting furnace is rotatably connected to the inner wall of the supporting seat through a bearing, and a motor is fixedly connected to the bottom of the supporting seat. A stirring assembly is arranged at the bottom of the inner wall of the cover plate, a check block is fixedly connected to the inner wall of the smelting furnace, an assembling groove is formed in the inner wall of the check block, a butt joint groove is formed in the inner wall of the assembling groove, and the smashing assembly is arranged in the assembling groove. The agglomerated modifier is divided through the crushing assembly, so that the modifier and the secondary aluminum can be fully fused, the secondary aluminum is stirred, the modifier is uniformly distributed in a secondary aluminum solution, the situation that the strength, toughness, corrosion resistance and other performance of aluminum alloy are affected due to non-uniform distribution of the modifier is prevented, and the product quality is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of metal material processing, in particular to a high-strength recycled aluminum alloy preparation device based on Mn-Cr composite modification. BACKGROUND

[0002] With the deepening of the concept of environmental protection, the global aluminum industry actively moves towards the road of sustainable development, and the recycled aluminum industry rises with the times. Compared with primary aluminum production, recycled aluminum can reduce dependence on resources and significantly reduce energy consumption. Waste aluminum has special requirements for smelting equipment due to its diverse sources, forms and complex properties. In this background, recycled aluminum preparation equipment emerges as the times require, and the characteristics of waste aluminum are optimized to meet the production needs of recycled aluminum.

[0003] The patent application with the application number CN202011016912.X discloses a recycled aluminum production preparation equipment, which comprises a base, a moving device and a cleaning device. The base is arranged on the ground, the cleaning device is arranged above the base, the cleaning device is installed below the moving device, and the moving device is installed on the upper end of the base. The application can clean the melted recycled aluminum several times with different degrees of cleaning, thereby reducing impurities in the recycled aluminum and ensuring the quality of the recycled aluminum.

[0004] However, during the melting and mixing process of the modifier and the recycled aluminum, the modifier is prone to agglomeration after melting, which leads to uneven distribution of the modifier and the aluminum, resulting in negative effects on the strength, toughness and corrosion resistance of the aluminum alloy, and it is difficult to meet the high-standard industrial application requirements. SUMMARY

[0005] The application aims to provide a high-strength recycled aluminum alloy preparation device based on Mn-Cr composite modification to solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the application provides the following technical scheme: a high-strength recycled aluminum alloy preparation device based on Mn-Cr composite modification, comprising a support seat, a cover plate is inserted into the top of the inner wall of the support seat, a furnace is rotatably connected to the inner wall of the support seat through a bearing, a motor is fixedly connected to the bottom of the support seat, a stirring assembly is arranged at the bottom of the inner wall of the cover plate, a stop block is fixedly connected to the inner wall of the furnace, an assembly groove is formed in the inner wall of the stop block, and a butt joint groove is formed in the inner wall of the assembly groove, further comprising:

[0007] The crushing assembly is arranged inside the assembly groove, and comprises a guide sleeve one, the two ends of the guide sleeve one are rotationally connected with the inner wall of the assembly groove through rotating shafts, a sliding groove one is formed in the outer wall of the guide sleeve one, a center rod is fixedly connected with the inner wall of the guide sleeve one, an extension rod is fixedly connected with the outer wall of the center rod, a stirring block one is fixedly connected with the outer wall of the extension rod, the stirring block one is slidingly connected with the groove wall of the sliding groove one, and a cutting tool is arranged on the outer wall of the stirring block one and in contact with the groove wall of the butt joint groove, so as to cut the agglomerated modifier and cut the recycled aluminum material before the recycled aluminum material is melted.

[0008] According to the technical scheme, the stirring assembly comprises a connecting rod, the top of the connecting rod is fixedly connected with the top of the inner wall of the cover plate, the bottom of the connecting rod is fixedly connected with a supporting plate, a sliding groove two is formed in the top of the supporting plate, a guide block one is slidingly connected with the groove wall of the sliding groove two, a spring one is fixedly connected with the outer wall of the guide block one, the other end of the spring one is fixedly connected with the groove wall of the sliding groove two, a supporting rod one is fixedly connected with the bottom of the guide block one, and a stirring block two is rotationally connected with the bottom of the supporting rod one through a bearing.

[0009] According to the technical scheme, the outer wall of the supporting rod one is rotationally connected with a guide sleeve two through a bearing, a guide block two is fixedly connected with the inner wall of the guide sleeve two, a guide groove is formed in the outer wall of the guide block two, a sliding plate is slidingly connected with the groove wall of the guide groove, a supporting rod two is hingedly connected with the inner wall of the sliding plate through a rotating shaft, and a stirring block three is hingedly connected with the outer wall of the supporting rod two through a rotating shaft, so that the supporting rod two is used for supporting the stirring block three.

[0010] According to the technical scheme, the top of the supporting plate is fixedly connected with a supporting block, the top of the supporting block is fixedly connected with a spring two, the other end of the spring two is fixedly connected with the inner wall of the guide sleeve two, and the supporting block is used for supporting the sliding plate through the spring two.

[0011] According to the technical scheme, the motor output end penetrates through the bottom of the supporting base and is fixedly connected with the bottom of the furnace, the motor output end penetrates through the bottom of the supporting base and is fixedly connected with the bottom of the furnace, the top of the furnace is rotationally connected with the bottom of the cover plate through a bearing, the shape of the stop block is conical, the stop block is used for guiding the stirring block two, and the outer wall of the stirring block one is in contact with the outer wall of the stirring block three, so that the stirring block one is used for stirring and cutting the agglomerated modifier.

[0012] According to the technical scheme, the outer wall of the stirring block two is in contact with the inner wall of the furnace and rolls along the inner wall of the furnace, and the guide block one is used for guiding and supporting the supporting rod one.

[0013] According to the technical scheme, the stirring block three outer wall is in sliding connection with the guide sleeve two inner wall, the stirring block three outer wall is in contact with the furnace inner wall, and the guide sleeve two is driven to rotate through contact with the recycled aluminum, the sliding plate is used for guiding and supporting the support rod two, and the support rod two is used for supporting the stirring block three.

[0014] According to the technical scheme, the support block inner wall is in sliding connection with the guide groove wall through a sliding block, and the support block is used for supporting the sliding plate.

[0015] Compared with the prior art, the beneficial effects of the present application are:

[0016] 1. The high-strength recycled aluminum alloy preparation device based on Mn-Cr composite modification, the agglomerated modifier is divided by the crushing assembly, so that the modifier can be fully fused with the recycled aluminum, and the recycled aluminum is stirred, so that the modifier is uniformly distributed in the recycled aluminum solution, the strength, toughness, corrosion resistance and other properties of the aluminum alloy are prevented from being affected, and the product quality is improved.

[0017] 2. The high-strength recycled aluminum alloy preparation device based on Mn-Cr composite modification, the recycled aluminum is fully stirred by the stirring assembly, so that the modifier can be fully fused with the recycled aluminum, and the recycled aluminum particles with large particles are cut and crushed in cooperation with the crushing assembly, so as to improve the smelting speed of the recycled aluminum.

[0018] 3. The high-strength recycled aluminum alloy preparation device based on Mn-Cr composite modification, the stirring assembly is guided by the stop block, so that the stirring assembly can stir the recycled aluminum without dead angle, so that the modifier can be fully fused with the recycled aluminum, and the strength, toughness, corrosion resistance and other properties of the aluminum alloy are prevented from being affected, and the product quality is improved.

[0019] 4. The high-strength recycled aluminum alloy preparation device based on Mn-Cr composite modification, the agglomerated modifier is divided by the abutting groove in cooperation with the crushing assembly, so that the modifier can be uniformly distributed in the liquid recycled aluminum, and the recycled aluminum with large particles is cut and crushed, so as to increase the preparation efficiency of the recycled aluminum alloy. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structural schematic view of the present application;

[0021] Figure 2 It is a sectional view of the present application Figure One ;

[0022] Figure 3 It is a sectional view of the present application Figure Two ;

[0023] Figure 4A sectional view of the present application Figure Three ;

[0024] Figure 5 A sectional view of the present application

[0025] Figure 6 A structural schematic diagram of the present application

[0026] Figure 7 A sectional view of the present application Figure One ;

[0027] Figure 8 A sectional view of the present application Figure Two .

[0028] In the figure: 1, support seat; 101, cover plate; 102, furnace; 103, motor; 104, stop block; 105, assembly groove; 106, butt joint groove; 2, crushing assembly; 201, guide sleeve one; 202, sliding groove one; 203, center rod; 204, telescopic rod; 205, stirring block one; 3, stirring assembly; 301, connecting rod; 302, support plate; 303, sliding groove two; 304, guide block one; 305, spring one; 306, support rod one; 307, guide sleeve two; 308, stirring block two; 309, guide block two; 310, guide groove; 311, support block; 312, sliding plate; 313, support rod two; 314, stirring block three; 315, spring two. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0030] Embodiment one, please refer to Figures 1-5 The present application provides a technical solution: a high-strength recycled aluminum alloy preparation device based on Mn-Cr composite modification, comprising a support seat 1, a cover plate 101 is inserted into the top inner wall of the support seat 1, a furnace 102 is rotatably connected to the inner wall of the support seat 1 through a bearing, a motor 103 is fixedly connected to the bottom of the support seat 1, a stirring assembly 3 is arranged on the inner wall bottom of the cover plate 101, a stop block 104 is fixedly connected to the inner wall of the furnace 102, an assembly groove 105 is formed in the inner wall of the stop block 104, and a butt joint groove 106 is formed in the inner wall of the assembly groove 105, further comprising:

[0031] The crushing assembly 2 is arranged in the assembly groove 105, and the crushing assembly 2 comprises a guide sleeve one 201, the two ends of the guide sleeve one 201 are rotationally connected with the inner wall of the assembly groove 105 through rotating shafts, a sliding groove one 202 is arranged on the outer wall of the guide sleeve one 201, a center rod 203 is fixedly connected with the inner wall of the guide sleeve one 201, an extension rod 204 is fixedly connected with the outer wall of the center rod 203, a stirring block one 205 is fixedly connected with the outer wall of the extension rod 204, the stirring block one 205 is slidingly connected with the groove wall of the sliding groove one 202, and a cutting tool is arranged on the outer wall of the stirring block one 205 and in contact with the groove wall of the butt joint groove 106, so as to cut the agglomerated modifier and cut the recycled aluminum material before the recycled aluminum material is melted. When the high-strength recycled aluminum alloy preparation device based on Mn-Cr composite modification is put into use, the crushed recycled aluminum is put into the furnace 102, the furnace 102 is driven to rotate on the inner wall of the support seat 1 by the motor 103, the stirring assembly 3 arranged on the top of the inner wall of the cover plate 101 cooperates with the stop block 104 to stir the recycled aluminum, in the stirring process, the stirring assembly 3 is in contact with the inner wall of the furnace 102 to stir the recycled aluminum at the edge of the furnace 102, after the stirring assembly 3 is in contact with the inner wall of the stop block 104, the stop block 104 guides the stirring assembly 3 to move towards the center of the furnace 102 to stir the center of the furnace 102, meanwhile, the stirring assembly 3 is in contact with the outer wall of the guide sleeve one 201 to drive the guide sleeve one 201 to rotate on the inner wall of the assembly groove 105, to drive the stirring block one 205 to be in contact with the butt joint groove 106, the cutting tool arranged on the outer wall of the stirring block one 205 is in contact with the butt joint groove 106, meanwhile, the stirring block one 205 is supported by the extension rod 204 and cooperates with the stirring assembly 3, so that the stirring block one 205 cuts the recycled aluminum with large particles to accelerate the melting speed of the recycled aluminum. After the recycled aluminum is completely melted, the modifier is added, the modifier is stirred and fused with the recycled aluminum by the rotation of the furnace 102 and the cooperation of the stirring assembly 3 after the modifier is added, the modifier is easy to agglomerate after being melted, the stirring assembly 3 cooperates with the stop block 104 to prevent the modifier from depositing, meanwhile, the guide sleeve one 201 drives the stirring block one 205 to make the stirring block one 205 cooperate with the butt joint groove 106 to cut the agglomerated modifier and stir the modifier, so that the modifier is more uniformly distributed in the recycled aluminum.

[0032] The motor 103 output end penetrates the support seat 1 bottom and is fixedly connected with the furnace 102 bottom, the furnace 102 top is rotatably connected with the cover plate 101 bottom through a bearing, the stop block 104 is conical, is used for guiding the stirring block two 308, the stirring block one 205 outer wall is in contact with the stirring block three 314 outer wall, is used for stirring and dividing the agglomerated modifier, the motor 103 drives the furnace 102 to rotate in the support seat 1 inner wall, is set through the stirring assembly 3 of the cover plate 101 inner wall top and cooperates with the stop block 104, and the regenerated aluminum is stirred, in the stirring process, the stirring assembly 3 is in contact with the furnace 102 inner wall, and the regenerated aluminum at the edge of the furnace 102 is stirred, after the stirring assembly 3 is in contact with the stop block 104 inner wall, the stirring assembly 3 is guided through the stop block 104, drives the stirring assembly 3 to move to the center of the furnace 102, and the center of the furnace 102 is stirred.

[0033] In the embodiment two, based on the embodiment one, please refer to Figure 6 The present application provides technical solutions: the stirring assembly 3 includes connecting rod 301, the connecting rod 301 top is fixedly connected with the cover plate 101 inner wall top, the connecting rod 301 bottom is fixedly connected with support plate 302, the support plate 302 top is provided with sliding groove two 303, the sliding groove two 303 groove wall is slidably connected with guide block one 304, the guide block one 304 outer wall is fixedly connected with spring one 305, the other end of spring one 305 is fixedly connected with the sliding groove two 303 groove wall, the guide block one 304 bottom is fixedly connected with support rod one 306, the support rod one 306 bottom is rotatably connected with stirring block two 308 through a bearing, and the stirring block two 308 is used for stirring the regenerated aluminum material at the bottom of the furnace 102, in the process of rotating the furnace 102, the guide block is slid in the sliding groove two 303 inner wall by spring one 305 extrusion, so that the support rod one 306 drives the stirring block two 308 to be in contact with the inner wall of the furnace 102, the stirring block two 308 is driven to rotate by the contact solution of the regenerated aluminum, so that the stirring block two 308 rotates at the edge of the bottom of the furnace 102, and the regenerated aluminum is stirred, when the stirring block two 308 outer wall is in contact with the stop block 104 outer wall, the guide block one 304 is compressed in the sliding groove two 303 inner wall by the support rod one 306, so that the stirring block moves to the center of the furnace 102 and stirs the center of the furnace 102;

[0034] The stirring block two 308 outer wall is in contact with the furnace 102 inner wall and rolls along the furnace 102 inner wall, the guide block one 304 is used for guiding and supporting the support rod one 306, in the process of rotating the furnace 102, the guide block is slid in the sliding groove two 303 inner wall by spring one 305 extrusion, so that the support rod one 306 drives the stirring block two 308 to be in contact with the inner wall of the furnace 102, the stirring block two 308 is driven to rotate by the contact solution of the regenerated aluminum, so that the stirring block two 308 rotates at the edge of the bottom of the furnace 102, and the regenerated aluminum is stirred.

[0035] For example three, based on example one and example two, please refer to Figures 7-8 The application provides a technical scheme: the outer wall of the support rod one 306 is rotationally connected with a guide sleeve two 307 through a bearing, the inner wall of the guide sleeve two 307 is fixedly connected with a guide block two 309, the outer wall of the guide block two 309 is provided with a guide groove 310, the groove wall of the guide groove 310 is slidably connected with a sliding plate 312, the inner wall of the sliding plate 312 is hingedly connected with a support rod two 313 through a rotating shaft, and the outer wall of the support rod two 313 is hingedly connected with a stirring block three 314 through a rotating shaft. The support rod two 313 is used for supporting the stirring block three 314. When the stirring block two 308 is in contact with the inner wall of the furnace 102, the stirring block three 314 is supported through the support rod two 313, the outer wall of the stirring block three 314 is in contact with the inner wall of the furnace 102, and the stirring block three 314 is in contact with the recycled aluminum, so as to drive the guide sleeve two 307 to rotate on the inner wall of the furnace 102 and stir the edge of the inner wall of the furnace 102. When the outer wall of the stirring block two 308 is in contact with the outer wall of the stop block 104, the stirring block two 308 is guided, the outer wall of the guide sleeve two 307 is in contact with the outer wall of the stirring block one 205, the guide sleeve drives the guide sleeve one 201 to rotate through the stirring block one 205, the outer wall of the stirring block three 314 is in contact with the outer wall of the stirring block one 205, the stirring block one 205 drives the stirring block three 314 to extrude the support rod two 313 to slide in the inner wall of the guide sleeve two 307, the support rod two 313 is hingedly connected with the sliding rod, the sliding rod drives the support block 311 to compress the spring two 315 to slide in the inner wall of the guide groove 310, the stirring block three 314 is slid back to cooperate with the stirring block one 205 to extrude the recycled aluminum, the stirring block three 314 cuts the recycled aluminum, the recycled aluminum particles are refined, and the melting speed of the recycled aluminum is accelerated.

[0036] The top of the support plate 302 is fixedly connected with the support block 311, the top of the support block 311 is fixedly connected with the spring two 315, the other end of the spring two 315 is fixedly connected with the inner wall of the guide sleeve two 307, and the support block 311 supports the sliding plate 312 through the spring two 315. When the outer wall of the stirring block two 308 is in contact with the outer wall of the stop block 104, the stirring block two 308 is guided, the outer wall of the guide sleeve two 307 is in contact with the outer wall of the stirring block one 205, the guide sleeve drives the guide sleeve one 201 to rotate through the stirring block one 205, the outer wall of the stirring block three 314 is in contact with the outer wall of the stirring block one 205, the stirring block one 205 drives the stirring block three 314 to extrude the support rod two 313 to slide in the inner wall of the guide sleeve two 307, the support rod two 313 is hingedly connected with the sliding rod, the sliding rod drives the support block 311 to compress the spring two 315 to slide in the inner wall of the guide groove 310, the stirring block three 314 is slid back to cooperate with the stirring block one 205 to extrude the recycled aluminum, the stirring block three 314 cuts the recycled aluminum, the recycled aluminum particles are refined, and the melting speed of the recycled aluminum is accelerated.

[0037] The outer wall of the stirring block three 314 is in sliding connection with the inner wall of the guide sleeve two 307, the outer wall of the stirring block three 314 is in contact with the inner wall of the furnace 102, and the guide sleeve two 307 is driven to rotate by being in contact with the recycled aluminum, the sliding plate 312 is used for guiding and supporting the support rod two 313, the support rod two 313 is used for supporting the stirring block three 314, the outer wall of the stirring block three 314 is in contact with the outer wall of the stirring block one 205, so that the stirring block one 205 drives the stirring block three 314 to extrude the support rod two 313 to slide on the inner wall of the guide sleeve two 307, the support rod two 313 is in hinged connection with the sliding rod, so that the sliding rod drives the support block 311 to compress the spring two 315 to slide on the inner wall of the guide groove 310, so that the stirring block three 314 slides back to cooperate with the stirring block one 205 to extrude the recycled aluminum, and the stirring block three 314 is used for cutting the recycled aluminum to refine the recycled aluminum particles and accelerate the melting speed of the recycled aluminum;

[0038] The inner wall of the support block 311 is in sliding connection with the groove wall of the guide groove 310 through a sliding block, the support block 311 is used for supporting the sliding plate 312, the support block 311 is extruded by the spring two 315, so that the support block 311 drives the sliding plate 312 to slide on the inner wall of the guide groove 310, the sliding plate 312 is in hinged connection with the support rod two 313, so that the support rod two 313 supports the stirring block three 314 and drives the stirring block three 314 to slide on the inner wall of the guide sleeve two 307, and the stirring range of the stirring block three 314 is increased.

[0039] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for preparing high-strength recycled aluminum alloy based on Mn-Cr composite modification, comprising a support base (1), a cover plate (101) inserted into the top of the inner wall of the support base (1), a furnace (102) rotatably connected to the inner wall of the support base (1) via bearings, and a motor (103) fixedly connected to the bottom of the support base (1), characterized in that, The inner wall bottom of the cover plate (101) is provided with a stirring assembly (3), the inner wall of the furnace (102) is fixedly connected with a stop block (104), the inner wall of the stop block (104) is provided with an assembly groove (105), the inner wall of the assembly groove (105) is provided with a butt joint groove (106), and the stirring assembly (3) further comprises: A crushing assembly (2) is arranged in the assembly groove (105), the crushing assembly (2) comprises a guide sleeve one (201), the two ends of the guide sleeve one (201) are rotatably connected with the inner wall of the assembly groove (105) through rotating shafts, the outer wall of the guide sleeve one (201) is provided with a sliding groove one (202), the inner wall of the guide sleeve one (201) is fixedly connected with a center rod (203), the outer wall of the center rod (203) is fixedly connected with an extension rod (204), the outer wall of the extension rod (204) is fixedly connected with a stirring block one (205), the stirring block one (205) is slidably connected with the groove wall of the sliding groove one (202), and the outer wall of the stirring block one (205) is in contact with the groove wall of the butt joint groove (106) through a cutting tool, so as to cut the agglomerated modifier and cut the recycled aluminum material before the recycled aluminum material is melted.

2. The device for preparing a high-strength recycled aluminum alloy based on Mn-Cr composite modification according to claim 1, characterized in that: The stirring assembly (3) comprises a connecting rod (301), the top of the connecting rod (301) is fixedly connected with the top of the inner wall of the cover plate (101), the bottom of the connecting rod (301) is fixedly connected with a supporting plate (302), the top of the supporting plate (302) is provided with a sliding groove two (303), the sliding groove two (303) is slidably connected with a guide block one (304), the outer wall of the guide block one (304) is fixedly connected with a spring one (305), the other end of the spring one (305) is fixedly connected with the groove wall of the sliding groove two (303), the bottom of the guide block one (304) is fixedly connected with a supporting rod one (306), the bottom of the supporting rod one (306) is rotatably connected with a stirring block two (308) through a bearing, and the stirring block two (308) is used for stirring the recycled aluminum material at the bottom of the furnace (102).

3. The device for preparing a high-strength recycled aluminum alloy based on Mn-Cr complex modification according to claim 2, characterized in that: The outer wall of the supporting rod one (306) is rotatably connected with a guide sleeve two (307) through a bearing, the inner wall of the guide sleeve two (307) is fixedly connected with a guide block two (309), the outer wall of the guide block two (309) is provided with a guide groove (310), the guide groove (310) is slidably connected with a sliding plate (312), the inner wall of the sliding plate (312) is hingedly connected with a supporting rod two (313) through a rotating shaft, the outer wall of the supporting rod two (313) is hingedly connected with a stirring block three (314) through a rotating shaft, and the supporting rod two (313) is used for supporting the stirring block three (314).

4. The device for preparing a high-strength recycled aluminum alloy based on Mn-Cr composite modification according to claim 3, characterized in that: The top of the supporting plate (302) is fixedly connected with a supporting block (311), the top of the supporting block (311) is fixedly connected with a spring two (315), the other end of the spring two (315) is fixedly connected with the inner wall of the guide sleeve two (307), and the supporting block (311) supports the sliding plate (312) through the spring two (315).

5. The device for preparing a high-strength recycled aluminum alloy based on Mn-Cr composite modification according to claim 1, characterized in that: The motor (103) output end penetrates through the support seat (1) bottom and is fixedly connected with the furnace (102) bottom, the furnace (102) top is rotationally connected with the cover plate (101) bottom through a bearing, the stop block (104) is conical, used for guiding the stirring block two (308), the stirring block one (205) outer wall is in contact with the stirring block three (314) outer wall, used for stirring and dividing the agglomerated modifier.

6. The device for preparing a high-strength recycled aluminum alloy based on Mn-Cr composite modification according to claim 2, characterized in that: The stirring block two (308) outer wall is in contact with the furnace (102) inner wall and rolls along the furnace (102) inner wall, the guide block one (304) is used for guiding and supporting the support rod one (306).

7. The device for preparing a high-strength recycled aluminum alloy based on Mn-Cr complex modification according to claim 3, characterized in that: The stirring block three (314) outer wall is slidably connected with the guide sleeve two (307) inner wall, the stirring block three (314) outer wall is in contact with the furnace (102) inner wall and drives the guide sleeve two (307) to rotate by being in contact with the recycled aluminum, the sliding plate (312) is used for guiding and supporting the support rod two (313), and the support rod two (313) is used for supporting the stirring block three (314).

8. The device for preparing a high-strength recycled aluminum alloy based on Mn-Cr complex modification according to claim 4, characterized in that: The support block (311) inner wall is slidably connected with the guide groove (310) groove wall through a sliding block, and the support block (311) is used for supporting the sliding plate (312).

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