A telescopic electromagnetic stirring device for metallurgical continuous casting

Abstract

The present invention relates to the field of metal smelting technology, and in particular to a telescopic electromagnetic stirring device for metallurgical continuous casting, comprising a rectangular frame, wherein guide columns are fixedly installed at the four corners of the upper surface of the rectangular frame, a support plate is commonly installed at the upper ends of the four movable columns, a height adjustment device is installed between the support plate and the rectangular frame, the output end of the electric telescopic rod is connected to the connecting rod, the interior of the second mounting hole is penetrated by a movable rod, a plurality of limit devices for fixing the movable rod are installed on the upper surface of the cross bar, a rotating shaft is rotatably installed inside the first U-shaped plate, and a stirrer located on the inner side of the first U-shaped plate is fixedly sleeved on the outer side of the rotating shaft. Compared with the prior art, the present invention has a simple structure, convenient adjustment, high flexibility, can meet the electromagnetic stirring of the plate body and the column body, has a large stirring power, can effectively improve the quality of the stirred object, has a good use effect, and is worthy of popularization and use.

Description

Technical Field

[0001] The invention relates to the technical field of metal smelting, and in particular to a telescopic electromagnetic stirring device for metallurgical continuous casting. Background Art

[0002] The casting production process is to continuously pour the molten liquid into the crystallizer at a certain casting speed. The crystallizer is equipped with a cooling water jacket. The crystallized ingot is continuously pulled out vertically at a certain speed. The ingot coming out of the crystallizer is cooled and solidified before being formed.

[0003] In general, there is a deep crescent-shaped liquid cavity inside the solidified end of the ingot coming out of the crystallizer, and there is a large temperature difference between the inside and outside of the ingot, which is easy to cause uneven internal structure of the ingot, macro-segregation of solute elements inside the ingot, and internal stress and cracks in the ingot after cooling and solidification. Especially when the width of the formed ingot is large, the depth distribution of the liquid cavity inside the ingot is large, the growth rate of the crystal nucleus in different areas is different, the solidification at both ends of the ingot is fast, the grains are fine, and the solidification in the center of the ingot is slow. The crystal nucleus growth time is long and the grains are coarse, resulting in quality defects in the ingot, which brings great quality risks to the later rolling production of the ingot. The mechanical properties and processing thickness of the rolled products will be greatly restricted. In order to solve the above problems, an electromagnetic stirring device is usually used.

[0004] The traditional electromagnetic stirring device is a coil installed on the iron core, which stirs the liquid metal under the action of magnetic force, but it generates a single rotating magnetic field, the stirring capacity is limited, and the effect on the melt inside the ingot is insufficient. At the same time, the existing electromagnetic stirring device can only electromagnetically stir a single metal, a column or a plate, and has poor flexibility in use, which greatly reduces the use effect of the electromagnetic stirring device. For this reason, we propose a telescopic electromagnetic stirring device for metallurgical continuous casting. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a telescopic electromagnetic stirring device for metallurgical continuous casting.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A telescopic electromagnetic stirring device for metallurgical continuous casting is designed, comprising a rectangular frame, support legs are fixedly installed at the four corners of the lower surface of the rectangular frame, guide columns are fixedly installed at the four corners of the upper surface of the rectangular frame, movable columns are movably sleeved on the outer sides of the guide columns, a support plate is commonly installed on the upper ends of the four movable columns, a height adjustment device is installed between the support plate and the rectangular frame, a through hole is provided in the middle of the support plate, guide rails are symmetrically installed on both sides of the upper surface of the support plate, a slider is clamped on the outer side of the guide rail, a connecting rod is installed between the two sliders on the same side, and electric telescopic rods are installed in the middle of both sides of the upper surface of the support plate, and the output end of the electric telescopic rod is connected to the The connecting rod is connected, and a support rod is installed on the upper surface of the sliding block, and a cross bar is installed on the upper ends of the two support rods on the same side. A plurality of second mounting holes are arranged at equal intervals in the middle of the cross bar, and a moving rod is penetrated inside the second mounting holes. A plurality of plug holes are arranged at equal intervals on the upper surface of the moving rod, and a plurality of limiting devices for fixing the moving rod are installed on the upper surface of the cross bar. A first U-shaped plate is installed at one end of the moving rod, and a rotating shaft is rotatably installed inside the first U-shaped plate, and an agitator located on the inner side of the first U-shaped plate is fixedly sleeved on the outer side of the rotating shaft, and a second U-shaped plate is installed on the upper surface of the first U-shaped plate, and a fixing bolt for fixing the rotating shaft is threadedly connected to the middle part of the second U-shaped plate.

[0008] Preferably, the height adjustment device includes a threaded sleeve fixed to the lower surface of one side of the support plate, the internal thread of the threaded sleeve is connected to a threaded rod, the threaded rod passes through the rectangular frame, and the threaded rod is rotatably connected to the rectangular frame, and a turntable is installed at the lower end of the threaded rod.

[0009] Preferably, the limiting device includes a stepped hole located on the upper surface of the cross bar and communicating with the second mounting hole, a limiting rod cooperating with the plug hole passes through the inside of the stepped hole, a push plate located in the large hole of the stepped hole is fixedly sleeved on the outer side of the limiting rod, and a spring located in the large hole of the stepped hole and above the push plate is movably sleeved on the outer side of the limiting rod.

[0010] Preferably, the lower ends of the support legs are each equipped with a universal movable wheel, and the universal movable wheel is a lockable universal movable wheel.

[0011] Preferably, the agitator includes a shell, a first mounting hole which is sleeved on the outside of the rotating shaft is provided on the right side of the shell, three first winding columns are horizontally installed around the inside of the shell, coils are wound around the outsides of the three first winding columns, a terminal is installed at the lower part of one side of the shell, the terminal and the coil are connected, and an iron core located inside the coil is installed on the left side of the shell.

[0012] Preferably, the inner wall and the outer wall of the shell are respectively provided with inner heat sinks and outer heat sinks.

[0013] Preferably, three second winding columns are installed in a ring shape inside the shell, and a heat dissipation pipe is wound on the outside of the second winding column. Two connecting ports are installed on the lower part of one side of the shell, and the two ends of the heat dissipation pipe are connected to the two connecting ports. A water pump and a refrigerator are installed on one side of the rectangular frame, and the water inlet of the water pump is connected to the water tank, the water outlet of the water pump is connected to the water inlet of the refrigerator, the water outlet of the refrigerator is connected to one of the connecting ports, and the other connecting port is connected to the water tank.

[0014] The invention provides a telescopic electromagnetic stirring device for metallurgical continuous casting, and the beneficial effects are as follows: the turntable provided in the invention drives the threaded rod to rotate, the threaded rod drives the threaded sleeve to move, the threaded sleeve drives the support plate to move, and can meet the use of different heights; the electric telescopic rod provided drives the connecting rod to move, the connecting rod drives the slider to move on the guide rail, the slider drives the support rod to move, the support rod drives the cross bar to move, the cross bar drives the moving rod to move, and the moving rod drives the agitator to move, and the distance between the corresponding agitators can be changed to achieve electromagnetic stirring of metals of different thicknesses; at the same time, the moving rod can move under the action of the limit rod, the jack, the push plate and the spring, so that a single agitator can be moved, and the agitator can be rotated by the fastening bolt and the rotating shaft, so that the electromagnetic stirring of metals of different plates and columns can be met at the same time; the water pump, the refrigerator and the heat dissipation pipe provided can cool the coil and the iron core, and enhance the service life of the coil and the iron core; compared with the prior art, the invention has a simple structure, convenient adjustment, high flexibility, can meet the electromagnetic stirring of the plate body and the column, has a large stirring power, can effectively improve the quality of the stirred object, has a good use effect, and is worthy of popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of a telescopic electromagnetic stirring device for metallurgical continuous casting proposed by the present invention;

[0016] Figure 2 This is a schematic diagram of the structure of part A of a telescopic electromagnetic stirring device for metallurgical continuous casting proposed by the present invention;

[0017] Figure 3 A schematic diagram of the internal structure of a stirrer of a telescopic electromagnetic stirring device for metallurgical continuous casting proposed by the present invention;

[0018] Figure 4 A schematic diagram of the internal structure of a stirrer of a telescopic electromagnetic stirring device for metallurgical continuous casting proposed by the present invention;

[0019] Figure 5 This is a schematic diagram of the connection structure of a crossbar and a moving rod of a telescopic electromagnetic stirring device for metallurgical continuous casting proposed by the present invention.

[0020] In the figure: water pump 1, refrigerator 2, moving column 3, slider 4, support plate 5, cross bar 6, stirrer 7, limit rod 8, moving rod 9, support rod 10, threaded sleeve 11, threaded rod 12, turntable 13, electric telescopic rod 14, connecting rod 15, guide rail 16, universal moving wheel 17, rectangular frame 18, guide column 19, support leg 20, fastening bolt 21, first U-shaped plate 22, rotating shaft 23, second U-shaped plate 24, through hole 25, first winding column 26, iron core 27, second winding column 28, coil 29, inner heat sink 30, outer heat sink 31, shell 32, first mounting hole 33, terminal 34, connecting port 35, heat pipe 36, push plate 37, stepped hole 38, spring 39, jack 40, second mounting hole 41. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Reference Figure 1-5 A telescopic electromagnetic stirring device for metallurgical continuous casting includes a rectangular frame 18, and support legs 20 are fixedly installed at the four corners of the lower surface of the rectangular frame 18. Universal movable wheels 17 are installed at the lower ends of the support legs 20, and the universal movable wheels 17 are lockable universal movable wheels, which can be easily moved and fixed, thereby improving the convenience of use.

[0023] Guide columns 19 are fixedly installed at the four corners of the upper surface of the rectangular frame 18, and movable columns 3 are movably sleeved on the outer sides of the guide columns 19. A support plate 5 is commonly installed on the upper ends of the four movable columns 3. A height adjustment device is installed between the support plate 5 and the rectangular frame 18. The height adjustment device includes a threaded sleeve 11 fixed to the lower surface of one side of the support plate 5. The internal thread of the threaded sleeve 11 is connected to a threaded rod 12. The threaded rod 12 passes through the rectangular frame 18, and the threaded rod 12 is rotatably connected to the rectangular frame 18. A turntable 13 is installed at the lower end of the threaded rod 12. The structure is simple, the manufacturing is convenient, and the height adjustment is convenient.

[0024] A through hole 25 is provided in the middle of the support plate 5, and guide rails 16 are symmetrically installed on both sides of the upper surface of the support plate 5. Slide blocks 4 are clamped on the outer sides of the guide rails 16, and a connecting rod 15 is installed between the two slide blocks 4 on the same side. Electric telescopic rods 14 are installed in the middle of both sides of the upper surface of the support plate 5. The output end of the electric telescopic rod 14 is connected to the connecting rod 15. Support rods 10 are installed on the upper surface of the slide block 4. The upper ends of the two support rods 10 on the same side are jointly installed with a cross bar 6. A plurality of second mounting holes 41 are evenly spaced in the middle of the cross bar 6. The interiors of the second mounting holes 41 are penetrated by moving rods 9. The moving rods 9 are connected to the movable rods 9. A plurality of insertion holes 40 are provided at equal intervals on the upper surface of the rod 9, and a plurality of limiting devices for fixing the movable rod 9 are installed on the upper surface of the cross bar 6. The limiting devices include a stepped hole 38 located on the upper surface of the cross bar 6 and communicating with the second mounting hole 41. A limiting rod 8 cooperating with the insertion hole 40 passes through the interior of the stepped hole 38. A push plate 37 located in the large hole of the stepped hole 38 is fixedly sleeved on the outer side of the limiting rod 8. A spring 39 located in the large hole of the stepped hole 38 and above the push plate 37 is movably sleeved on the outer side of the limiting rod 8. The position of the movable rod 9 can be adjusted and fixed, and it is easy to use, saving time and effort.

[0025] A first U-shaped plate 22 is installed at one end of the moving rod 9, and a rotating shaft 23 is rotatably installed inside the first U-shaped plate 22. The outer side of the rotating shaft 23 is fixedly sleeved with an agitator 7 located on the inner side of the first U-shaped plate 22. The agitator 7 includes a shell 32, and the inner wall and outer wall of the shell 32 are respectively installed with an inner heat sink 30 and an outer heat sink 31, which can dissipate heat for the coil 29 and the iron core 27, thereby improving the use effect and service life of the coil 29 and the iron core 27.

[0026] Three second winding columns 28 are installed in a ring shape inside the shell 32, and a heat dissipation pipe 36 is wound around the outer side of the second winding column 28. Two connecting ports 35 are installed on the lower part of one side of the shell 32, and both ends of the heat dissipation pipe 36 are connected to the two connecting ports 35. A water pump 1 and a refrigerator 2 are installed on one side of the rectangular frame 18. The water inlet of the water pump 1 is connected to the water tank, the water outlet of the water pump 1 is connected to the water inlet of the refrigerator 2, the water outlet of the refrigerator 2 is connected to one of the connecting ports 35, and the other connecting port 35 is connected to the water tank, which can dissipate heat for the coil 29 and the iron core 27, thereby improving the use effect and service life of the coil 29 and the iron core 27.

[0027] A first mounting hole 33 is provided on the right side of the shell 32 and is sleeved on the outside of the rotating shaft 23. Three first winding columns 26 are horizontally installed around the inside of the shell 32, and the outside of the three first winding columns 26 is wound with a coil 29. A terminal 34 is installed at the lower part of one side of the shell 32, and the terminal 34 and the coil 29 are connected. An iron core 27 located on the inner side of the coil 29 is installed on the left side of the shell 32. The structure is simple, the manufacturing cost is low, the maintenance is convenient, and the use effect is good.

[0028] A second U-shaped plate 24 is mounted on the upper surface of the first U-shaped plate 22 , and a fixing bolt 21 for fixing the rotating shaft 23 is threadedly connected to the middle portion of the second U-shaped plate 24 .

[0029] Working principle: When in use, the device is moved to a suitable position through the universal moving wheel 17, the water pump 1, the refrigerator 2, the electric telescopic rod 14 and the coil 29 are connected to the power supply, the turntable 13 is rotated, the turntable 13 drives the threaded rod 12 to rotate, the threaded rod 12 drives the threaded sleeve 11 to move, the threaded sleeve 11 drives the support plate 5 to move, which can meet the use of different heights, start the electric telescopic rod 14, the electric telescopic rod 14 drives the connecting rod 15 to move, the connecting rod 15 drives the slider 4 to move on the guide rail 16, the slider 4 drives the support rod 10 to move, the support rod 10 drives the cross bar 6 to move, the cross bar 6 drives the moving rod 9 to move, the moving rod 9 drives the agitator 7 to move, which can change the distance between the corresponding agitators 7, realize electromagnetic stirring of metals of different thicknesses, and move at the same time The rod 9 can move under the action of the limit rod 8, the socket 40, the push plate 37 and the spring 39, so that a single agitator 7 can be moved. The agitator 7 can also rotate on the fastening bolt 21 and the rotating shaft 23, so that the electromagnetic stirring of the metals of different plates and columns can be satisfied at the same time. The water pump 1 and the refrigerator 2 are started. The water pump 1, the refrigerator 2 and the heat dissipation pipe 36 can cool the coil 29 and the iron core 27, thereby increasing the service life of the coil 29 and the iron core 27. When the coil 29 is energized, a traveling wave magnetic field will be generated around the iron core 27 and the coil 29. This magnetic field can act on the molten metal to generate an induced potential and current in the molten metal. This induced current and the magnetic field generate electromagnetic force, thereby promoting the directional flow of the molten metal and playing a stirring role.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A telescopic electromagnetic stirring device for metallurgical continuous casting, comprising a rectangular frame (18), characterized in that: Support legs (20) are fixedly installed at the four corners of the lower surface of the rectangular frame (18), guide columns (19) are fixedly installed at the four corners of the upper surface of the rectangular frame (18), and movable columns (3) are movably sleeved on the outer sides of the guide columns (19). A support plate (5) is commonly installed on the upper ends of the four movable columns (3), and a height adjustment device is installed between the support plate (5) and the rectangular frame (18). A through hole (25) is provided in the middle of the support plate (5). Guide rails (16) are symmetrically installed on both sides of the upper surface of the support plate (5), and a slider (4) is clamped on the outer side of the guide rail (16). A connecting rod (15) is installed between two sliders (4) on the same side. Electric telescopic rods (14) are installed in the middle of both sides of the upper surface of the support plate (5), and the output end of the electric telescopic rod (14) is connected to the connecting rod (15). The upper surface of the slider (4) is A support rod (10) is installed, and a cross rod (6) is installed on the upper ends of the two support rods (10) on the same side. A plurality of second mounting holes (41) are evenly spaced in the middle of the cross rod (6), and a moving rod (9) is penetrated inside the second mounting holes (41). A plurality of insertion holes (40) are evenly spaced on the upper surface of the moving rod (9). A plurality of limiting devices for fixing the moving rod (9) are installed on the upper surface of the cross rod (6). A first U-shaped plate (22) is installed at one end of the moving rod (9), and a rotating shaft (23) is rotatably installed inside the first U-shaped plate (22). An agitator (7) located inside the first U-shaped plate (22) is fixedly sleeved on the outer side of the rotating shaft (23). A second U-shaped plate (24) is installed on the upper surface of the first U-shaped plate (22), and a fixing bolt (21) for fixing the rotating shaft (23) is threadedly connected in the middle of the second U-shaped plate (24); The lower ends of the support legs (20) are all equipped with universal movable wheels (17), and the universal movable wheels (17) are lockable universal movable wheels; The stirrer (7) comprises a shell (32), the right side of the shell (32) is provided with a first mounting hole (33) which is sleeved on the outside of the rotating shaft (23), the interior of the shell (32) is horizontally surrounded by three first winding columns (26), the outsides of the three first winding columns (26) are wound with coils (29), a terminal (34) is installed at the lower part of one side of the shell (32), the terminal (34) and the coil (29) are connected, and the left side of the shell (32) is provided with an iron core (27) located inside the coil (29).

2. The telescopic electromagnetic stirring device for metallurgical continuous casting according to claim 1, characterized in that: The height adjustment device comprises a threaded sleeve (11) fixed to the lower surface of one side of the support plate (5); the internal thread of the threaded sleeve (11) is connected to a threaded rod (12); the threaded rod (12) passes through a rectangular frame (18), and the threaded rod (12) is rotatably connected to the rectangular frame (18); a rotating disk (13) is installed at the lower end of the threaded rod (12).

3. The telescopic electromagnetic stirring device for metallurgical continuous casting according to claim 1, characterized in that: The limiting device comprises a stepped hole (38) located on the upper surface of the cross bar (6) and communicating with the second mounting hole (41); a limiting rod (8) cooperating with the plug hole (40) passes through the inside of the stepped hole (38); a push plate (37) located in a large hole of the stepped hole (38) is fixedly sleeved on the outer side of the limiting rod (8); and a spring (39) located in the large hole of the stepped hole (38) and above the push plate (37) is movably sleeved on the outer side of the limiting rod (8).

4. The telescopic electromagnetic stirring device for metallurgical continuous casting according to claim 1, characterized in that: The inner wall and outer wall of the shell (32) are respectively provided with inner cooling fins (30) and outer cooling fins (31).

5. The telescopic electromagnetic stirring device for metallurgical continuous casting according to claim 1, characterized in that: Three second winding columns (28) are installed in a ring shape inside the shell (32), and a heat dissipation pipe (36) is wound around the outside of the second winding column (28). Two connecting ports (35) are installed at the lower part of one side of the shell (32), and the two ends of the heat dissipation pipe (36) are connected to the two connecting ports (35). A water pump (1) and a refrigerator (2) are installed on one side of the rectangular frame (18), and the water inlet of the water pump (1) is connected to the water tank, the water outlet of the water pump (1) is connected to the water inlet of the refrigerator (2), the water outlet of the refrigerator (2) is connected to one of the connecting ports (35), and the other connecting port (35) is connected to the water tank.

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