Alloy solution mechanical and electromagnetic stirring device

Abstract

The application provides an alloy solution mechanical and electromagnetic stirring device, and mainly relates to the technical field of die steel smelting. The alloy solution mechanical and electromagnetic stirring device comprises a support frame, a stirring container is fixedly installed on the support frame, a driving motor is fixedly installed on the top of the stirring container, a solution filling hopper is arranged on the top of the stirring container, a support seat is fixedly arranged outside the stirring container, the support seat is fixedly installed on the support frame through bolts, and a buffer pad is arranged between the support seat and the support frame. The application has the beneficial effects that: the application combines mechanical stirring and electromagnetic stirring, can ensure that relative movement between liquid phase and solid phase is generated in different degrees, multi-dimensional shear flow is generated, the breaking, crushing and proliferation of dendrite arms are caused, a large number of dislocations are migrated from grain boundaries to the inside of the crystals, the purpose of refining grains is achieved, the energy consumption requirement in the stirring process can be greatly reduced, and the purposes of energy saving and emission reduction are achieved.

Description

TECHNICAL FIELD

[0001] The present application mainly relates to the technical field of die steel smelting, and particularly relates to an alloy solution mechanical and electromagnetic stirring device. BACKGROUND

[0002] In order to alleviate and improve the composition segregation phenomenon of the alloy solution, and improve the uniformity of the material composition and structure, the common dynamic grain refinement methods in the metal casting process include mechanical stirring, electromagnetic stirring, bubble stirring, mechanical vibration and ultrasonic vibration, etc. The alloy melt is pretreated through the above methods to achieve the purpose of controlling the solidification structure.

[0003] The mechanical stirring is easy to operate and convenient to adjust. The most common method is centrifugal stirring. The solution is stirred through the stirring device, which can improve the uniformity of the substances in the alloy solution to a certain extent. The part with relatively large specific gravity is thrown to the periphery of the mold, and the part with relatively small specific gravity is left in the center. Once the part with relatively large specific gravity is thrown to the periphery of the mold, the melt cannot move to the center of the mold due to the inertia effect, thereby intensifying the non-uniformity of the melt in the solidification process. The higher the speed of rotation is, the more prominent the separation phenomenon is. The stirring becomes centrifugal separation, that is, the relatively dense elements tend to deposit towards the wall, and the lighter elements and blocky elements tend to deposit in the center. If the feeding is not timely, a deep liquid cavity will appear in the center.

[0004] The electromagnetic stirring is to realize the stirring of the melt by using the electromagnetic effect. The moving magnetic field generates eddy current in the metal melt. The magnetic induction intensity generates a volume force on the eddy current, and the volume force drives the liquid melt to flow, that is, the liquid metal melt is stirred [3] Wang Xiaodong. Research on the driving and motion pattern control of electromagnetic force on metal melt [D]. Dalian University of Technology, 2002. The electromagnetic field has been maturely applied in the fields of metal smelting, solidification and heat treatment. Three kinds of physical effects are generated in the molten metal liquid: electromagnetic heat effect, electromagnetic force effect and special effect on phase change and transmission process (such as electromigration, etc.). Although the electromagnetic stirring has realized industrialization and obtained relatively wide commercial application, the existing electromagnetic stirring technology has the following defects: a very high power supply power is required during work, and a large part of the input power is converted into heat energy of the solution. A cooling system with very strong heat exchange capacity is required to control the temperature from being too high, resulting in extremely high energy consumption in the stirring process. SUMMARY

[0005] In order to solve the problems in the prior art, the present application provides an alloy solution mechanical and electromagnetic stirring device. The device can realize the combination of mechanical stirring and electromagnetic stirring, can ensure the relative movement between the liquid phase and the solid phase to a certain extent, generate multi-dimensional shear flow, cause the breakage, fragmentation and proliferation of the dendrite arms, and make a large number of dislocations migrate from the grain boundary to the grain, so as to achieve the purpose of refining the grains. Meanwhile, the energy consumption requirement in the stirring process can be greatly reduced, and the purpose of energy saving and emission reduction can be achieved.

[0006] To achieve the above object, the present application is implemented by the following technical scheme:

[0007] The alloy solution mechanical and electromagnetic stirring device comprises a support frame, a stirring container fixedly installed on the support frame, a driving motor fixedly installed on the top of the stirring container, a solution filling hopper arranged on the top of the stirring container, a support seat fixedly arranged outside the stirring container, and a buffer pad installed between the support seat and the support frame.

[0008] The support frame comprises a longitudinal support beam, a horizontal support beam and a support frame, the horizontal support beam is fixedly connected to the middle part of the longitudinal support beam, the support frame is fixedly installed on the top of the longitudinal support beam, and a reinforcing beam is fixedly connected in the support frame.

[0009] The support seat and the buffer pad are arranged in a circumferential symmetry about the central axis of the stirring container.

[0010] The stirring container is provided with a standby interface on the top and a solution discharge pipe on the bottom.

[0011] The stirring paddle comprises a connecting head, and four L-shaped stirring rods are fixedly installed on the connecting head.

[0012] Compared with the prior art, the present application has the following advantages:

[0013] The present application combines mechanical stirring and electromagnetic stirring, which can not only ensure the relative movement between liquid phase and solid phase to a certain extent, produce multi-dimensional shear flow, cause the breakage, fragmentation and proliferation of dendrite arms, and a large number of dislocations migrate from the grain boundary to the grain, so as to achieve the purpose of refining the grain, but also can greatly reduce the energy consumption requirement in the stirring process, so as to achieve the purpose of energy saving and emission reduction. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the first perspective structural schematic view of the present application.

[0015] Figure 2 is the second perspective structure schematic diagram of the present application;

[0016] Figure 3 is the bottom disassembled structure schematic diagram of the present application;

[0017] Figure 4 is the stirring head structure schematic diagram of the present application;

[0018] Figure 5 is the solution flow effect schematic diagram of the present application under the magnetic force influence in the stirring container.

[0019] The labels shown in the drawings: 1, support frame; 2, stirring container; 3, drive motor; 4, solution filling hopper; 5, support seat; 6, buffer pad; 7, stirring shaft; 8, stirring head; 11, longitudinal support beam; 12, transverse support beam; 13, support frame; 14, reinforcing beam; 20, spare interface; 21, outer container; 22, inner container; 23, temperature insulation layer; 24, electromagnetic stirring device; 25, solution discharge pipe; 80, middle connecting seat; 81, connecting crossbeam one; 82, connecting crossbeam two; 83, connecting crossbeam three; 84, side wall scraper; 85, inclined connecting rod; 86, bottom scraper; 87, longitudinal connecting rod; 88, push plate; 89, micro motor; 90, stirring paddle; 91, connecting head; 92, L-shaped stirring rod. DETAILED DESCRIPTION

[0020] The present application is further illustrated in conjunction with the drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present application and not used to limit the scope of the present application. In addition, it should be understood that after reading the content taught by the present application, those skilled in the art can make various alterations or modifications to the present application, and these equivalent forms also fall within the scope defined by the present application.

[0021] The present application is further illustrated in conjunction with the drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present application and not used to limit the scope of the present application. In addition, it should be understood that after reading the content taught by the present application, those skilled in the art can make various alterations or modifications to the present application, and these equivalent forms also fall within the scope defined by the present application. Figures 1-5The utility model provides an alloy solution mechanical and electromagnetic stirring device, including support frame 1, stirring container 2 is fixedly installed on support frame 1, drive motor 3 is fixedly installed at the top of stirring container 2, solution filling hopper 4 is arranged at the top of stirring container 2, support seat 5 is fixedly arranged outside stirring container 2, support seat 5 is fixedly installed on support frame 1 using bolt, buffer pad 6 is installed between support seat 5 and support frame 1, stirring container 2 includes outer container 21, inner container 22, temperature insulation layer 23, electromagnetic stirring device 24 is arranged in temperature insulation layer 23, stirring shaft 7 is rotatably installed in stirring container 2, stirring shaft 7 is fixedly connected with the output shaft of drive motor 3, stirring head 8 is fixedly installed at the bottom end of stirring shaft 7, and the structure of stirring head 8 includes middle connecting seat 80, connecting crossbeam no. 81, connecting crossbeam no. 82 and connecting crossbeam no. 83 are fixedly installed on middle connecting seat 80 respectively, side wall scraper 84 is fixedly connected with the outer end of connecting crossbeam no. 81, inclined connecting rod 85 is fixedly connected with the outer end of connecting crossbeam no. 82, bottom scraper 86 is fixedly connected with the bottom of inclined connecting rod 85, longitudinal connecting rod 87 is fixedly installed on connecting crossbeam no. 82, push plate 88 is fixedly connected with the bottom of longitudinal connecting rod 87, micro motor 89 is fixedly installed on the outer end of connecting crossbeam no. 83, and stirring paddle 90 is installed on the output shaft of micro motor 89, in the structure of stirring head, side wall scraper can scrape the alloy solution medium adhered to the wall of inner container of stirring container under the action of large centrifugal force and magnetic attraction, bottom scraper can scrape the alloy solution medium deposited on the bottom of stirring container under the action of gravity, and push plate and stirring paddle can improve the stirring effect.

[0022] The support frame 1 includes a longitudinal support beam 11, a horizontal support beam 12, and a support frame 13, the horizontal support beam 12 is fixedly connected to the middle of the longitudinal support beam 11, the support frame 13 is fixedly installed on the top of the longitudinal support beam 11, and a reinforcing beam 14 is fixedly connected in the support frame 13.

[0023] The support seat 5 and the buffer pad 6 are arranged in a circularly symmetrical manner about the central axis of the stirring container 2.

[0024] The stirring container 2 is provided with a backup interface 20 at the top and a solution discharge pipe 25 at the bottom.

[0025] The stirring paddle 90 includes a connecting head 91, and four L-shaped stirring rods 92 are fixedly installed on the connecting head 91.

[0026] The device is also provided with a control box, which can control the operation of the drive equipment such as the drive motor, the electromagnetic stirring device, and the micro motor.

[0027] In use, the alloy solution to be stirred is added into the stirring container 2 through the solution filling opening 4, the driving motor and the micro motor are started to work through the control box, the stirring head agitates the alloy solution in the stirring container to rotate, the electromagnetic stirring device is started to work through the control box, the solution in the stirring device is made to flow as shown in the attached Figure 5 figure under the action of the electromagnetic field while being stirred and rotated, so that the alloy solution is fully stirred and uniformly distributed, and the centrifugal separation phenomenon is prevented. In this way, the solution can be fully stirred, the power consumption of the electromagnetic stirring device is greatly reduced, and since the power is reduced and the heat generation is reduced, an additional cooling system is not needed, so that the energy consumption of the stirring device is greatly reduced.

Claims

1. An alloy solution mechanical and electromagnetic stirring device comprising a support frame (1), characterized in that: The support frame (1) is fixedly installed with a stirring container (2), the top of the stirring container (2) is fixedly installed with a driving motor (3), the top of the stirring container (2) is provided with a solution filling hopper (4), the stirring container (2) is fixedly provided with a support seat (5) outside, the support seat (5) is fixedly installed on the support frame (1) by bolts, a buffer pad (6) is installed between the support seat (5) and the support frame (1), the stirring container (2) comprises an outer container (21), an inner container (22) and a temperature insulation layer (23), an electromagnetic stirring device (24) is arranged in the temperature insulation layer (23), a stirring shaft (7) is rotatably installed in the stirring container (2), the stirring shaft (7) is fixedly connected with the output shaft of the driving motor (3), a stirring head (8) is fixedly installed at the bottom end of the stirring shaft (7), the stirring head (8) comprises a middle connecting seat (80), a connecting beam one (81), a connecting beam two (82) and a connecting beam three (83) are fixedly installed on the middle connecting seat (80), respectively, a side wall scraper (84) is fixedly connected to the outer end of the connecting beam one (81), an inclined connecting rod (85) is fixedly connected to the outer end of the connecting beam two (82), a bottom scraper (86) is fixedly connected to the bottom of the inclined connecting rod (85), a vertical connecting rod (87) is fixedly installed on the connecting beam two (82), a push plate (88) is fixedly connected to the bottom of the vertical connecting rod (87), a micro motor (89) is fixedly installed on the outer end of the connecting beam three (83), and a stirring paddle (90) is installed on the output shaft of the micro motor (89).

2. An alloy solution mechanical and electromagnetic stirring apparatus as claimed in claim 1, wherein: The support frame (1) comprises a vertical support beam (11), a horizontal support beam (12) and a support frame (13), the horizontal support beam (12) is fixedly connected to the middle of the vertical support beam (11), and the support frame (13) is fixedly installed on the top of the vertical support beam (11).

3. The apparatus of claim 1 wherein: The support seat (5) and the buffer pad (6) are provided with eight, and the eight support seats (5) and the buffer pads (6) are arranged in a circumferential symmetry about the central axis of the stirring container (2).

4. The apparatus of claim 1 wherein: The top of the stirring container (2) is provided with a standby interface (20), and the bottom of the stirring container (2) is provided with a solution discharge pipe (25).

5. The alloy solution mechanical and electromagnetic stirring apparatus of claim 1 wherein: The stirring paddle (90) comprises a connecting head (91), and four L-shaped stirring rods (92) are fixedly installed on the connecting head (91). The support frame (1) is fixedly installed with a stirring container (2), the top of the stirring container (2) is fixedly installed with a driving motor (3), the top of the stirring container (2) is provided with a solution filling hopper (4), the stirring container (2) is fixedly provided with a support seat (5) outside, the support seat (5) is fixedly installed on the support frame (1) by bolts, a buffer pad (6) is installed between the support seat (5) and the support frame (1), the stirring container (2) comprises an outer container (21), an inner container (22) and a temperature insulation layer (23), an electromagnetic stirring device (24) is arranged in the temperature insulation layer (23), a stirring shaft (7) is rotatably installed in the stirring container (2), the stirring shaft (7) is fixedly connected with the output shaft of the driving motor (3), a stirring head (8) is fixedly installed at the bottom end of the stirring shaft (7), the stirring head (8) comprises a middle connecting seat (80), a connecting beam one (81), a connecting beam two (82) and a connecting beam three (83) are fixedly installed on the middle connecting seat (80), respectively, a side wall scraper (84) is fixedly connected to the outer end of the connecting beam one (81), an inclined connecting rod (85) is fixedly connected to the outer end of the connecting beam two (82), a bottom scraper (86) is fixedly connected to the bottom of the inclined connecting rod (85), a vertical connecting rod (87) is fixedly installed on the connecting beam two (82), a push plate (88) is fixedly connected to the bottom of the vertical connecting rod (87), a micro motor (89) is fixedly installed on the outer end of the connecting beam three (83), and a stirring paddle (90) is installed on the output shaft of the micro motor (89). The support frame (1) comprises a vertical support beam (11), a horizontal support beam (12) and a support frame (13), the horizontal support beam (12) is fixedly connected to the middle of the vertical support beam (11), and the support frame (13) is fixedly installed on the top of the vertical support beam (11). The support seat (5) and the buffer pad (6) are provided with eight, and the eight support seats (5) and the buffer pads (6) are arranged in a circumferential symmetry about the central axis of the stirring container (2). The top of the stirring container (2) is provided with a standby interface (20), and the bottom of the stirring container (2) is provided with a solution discharge pipe (25). The stirring paddle (90) comprises a connecting head (91), and four L-shaped stirring rods (92) are fixedly installed on the connecting head (91).

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