Telescopic electromagnetic stirring device for metallurgical continuous casting
By designing a telescopic electromagnetic stirring device with adjustable position, angle, and spacing, the problem of insufficient adaptability of traditional devices was solved, and multi-layer synergistic or shear stirring was achieved, thereby improving the quality of the cast billet and the material properties.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-14
- Publication Date
- 2026-04-10
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The position, angle and spacing of the stirrers in traditional electromagnetic stirring devices are not adjustable, making it difficult to adapt to billets or containers of different diameters. Furthermore, a single stirring method is insufficient to meet the needs of different steel grades and process conditions.
Design a telescopic electromagnetic stirring device to achieve multi-layer synergistic or shear stirring by adjusting the position, angle and spacing of the stirrer. Employ a rotatable electromagnetic stirring plate and a water circulation cooling system to generate composite flow to improve mixing efficiency.
It achieves efficient stirring for different steel grades and process conditions, can adapt to containers of different pipe diameters, and improves the quality of cast billets and material properties.
Smart Images
Figure CN121820568A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of metallurgical continuous casting, and particularly relates to a telescopic electromagnetic stirring device for metallurgical continuous casting. BACKGROUND
[0002] In the process of metallurgical continuous casting, electromagnetic stirring technology is widely used to improve the quality of the casting blank, refine the grains, reduce the composition segregation and improve the material performance. The traditional electromagnetic stirring device usually adopts a fixed structure, and the position, angle and spacing of the stirrer cannot be adjusted, which leads to the difficulty in adapting to the casting blanks or containers with different diameters in the actual application process. In addition, due to the complex and changeable flow state, temperature distribution and solidification behavior of the molten steel or metal liquid in the continuous casting process, a single stirring mode is often difficult to meet the stirring requirements under different steel grades and different process conditions.
[0003] Therefore, aiming at the above problems, the present application provides an electromagnetic stirring device which can flexibly adjust the position, angle and spacing of the stirrer, is suitable for containers with different pipe diameters, and can realize multi-layer collaborative or shearing stirring, so as to meet the diversified and high-standard process requirements in the continuous casting production. SUMMARY
[0004] The present application aims to provide a telescopic electromagnetic stirring device for metallurgical continuous casting, so as to solve the problem that the existing electromagnetic stirring device cannot meet different steel grades and different processes.
[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: The utility model relates to a telescopic electromagnetic stirring device for metallurgical continuous casting, which comprises a bottom plate and a top plate, the bottom plate and the top plate are connected through four support rods, two electromagnetic stirring assemblies are arranged between the bottom plate and the top plate, the electromagnetic stirring assembly comprises a moving plate, the moving plate is connected with a base plate, the base plate is provided with a sliding groove and a fixed plate, a screw rod is rotatably connected in the sliding groove, the screw rod is threadedly connected with a control plate, the control plate is slidably connected in the sliding groove, a first gear is rotatably connected in the control plate, the first gear is coaxially connected with a control handle, the control plate is located outside the control plate, the first gear is engaged with a second gear, the second gear is coaxially connected with a connecting rod, the connecting rod penetrates the fixed plate, the connecting rod is fixedly connected with an electromagnetic stirring plate, an iron core is fixedly connected in the electromagnetic stirring plate, a coil is wound on the iron core, the coil penetrates to the outside and is connected with an external power supply, connecting holes are arranged on both sides of the electromagnetic stirring plate, the connecting holes are used for being connected with external water pipes to realize water circulation cooling, pipeline through holes are arranged on the moving plate, the pipeline through holes are used for allowing the coil and the external water pipes to pass through, a double-shaft motor is connected with the bottom plate, output shafts on both sides of the double-shaft motor are connected with first rotating rods, free ends of the first rotating rods are connected with first bevel gears, second rotating rods are rotatably connected in the bottom plate, second bevel gears and third bevel gears are coaxially connected on the second rotating rods, the second bevel gears are engaged with the first bevel gears, a threaded rod is rotatably connected between the bottom plate and the top plate, the threaded rod is threadedly connected with the two moving plates, the threads on the upper and lower sides of the threaded rod are opposite in rotation direction, a fourth bevel gear is connected with the bottom of the threaded rod, the fourth bevel gear is engaged with the third bevel gear, and placing through holes for placing containers are arranged at centers of the bottom plate, the top plate and the moving plate.
[0006] Further, walking wheels are connected with the bottom of the bottom plate.
[0007] Further, the electromagnetic stirring plate is in an arc structure, and the iron core is correspondingly arranged in an arc structure.
[0008] Further, a blocking plate is arranged on the support rod and between the two moving plates.
[0009] Further, the base plate is detachably connected with the moving plate through bolts.
[0010] The principle and beneficial effects of the technical solution are as follows: in the device, the distance between the two electromagnetic stirring plates can be adjusted, and after the coil is powered on, electromagnetic stirring can be performed on the containers or pipelines with different pipe diameters containing molten steel or metal liquid, and the gap between the container and the electromagnetic stirring plate can be ensured, so that electromagnetic stirring suitable for different situations can be achieved; in the device, the distance between the upper and lower stirring assemblies can be adjusted, and the optimal cooperative or shearing distance can be found by adjusting the distance between the two stirring assemblies, and after the two stirring assemblies are adjusted to the optimal distance, cooperative stirring can be performed to enhance the stirring intensity, or the stirring directions of the two stirring assemblies are opposite to break dendrite crystals or expand the equiaxed crystal zone; in the device, the two side electromagnetic stirring plates can be rotated, the electromagnetic stirring plates are arranged to be rotatable, the magnetic field direction can be changed at will, and an asymmetric magnetic field can be generated by adjusting the distance between the two sides and the distance between the upper and lower sides, complex composite flow such as up-down circulation and horizontal rotation flow can be caused, and therefore the mixing efficiency can be significantly improved; therefore, the device can solve electromagnetic stirring with different requirements. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 It is a structural schematic diagram of the device; Figure 2 It is an enlarged view of the stirring assembly of the device; Figure 3 It is an enlarged view of the connecting hole of the device; Figure 4 It is a top view of the control panel of the device; Figure 5 It is a top view of the bottom plate of the device; In the figure: 1, bottom plate; 2, top plate; 3, support rod; 4, stirring assembly; 5, double-shaft motor; 6, second rotating rod; 7, threaded rod; 8, placing through hole; 11, walking wheel; 31, blocking plate; 41, moving plate; 42, base plate; 43, control panel; 44, connecting rod; 45, electromagnetic stirring plate; 46, iron core; 47, coil; 48, connecting hole; 49, pipeline through hole; 51, first rotating rod; 52, first bevel gear; 61, second bevel gear; 62, third bevel gear; 71, fourth bevel gear; 421, sliding groove; 422, fixed plate; 423, screw rod; 431, first gear; 432, control handle; 433, second gear. DETAILED DESCRIPTION
[0012] The application will be further described in detail in combination with the drawings and embodiments: As Figures 1-4The utility model provides a kind of telescopic electromagnetic stirring device for metallurgical continuous casting shown, including top plate 2 and bottom plate 1, and the center of top plate 2 and bottom plate 1 is provided with circular placement through-hole 8, the bottom of bottom plate 1 is connected with four walking wheels 11, facilitate to push, four support rods 3 are respectively connected at the four corners of bottom plate 1, four support rods 3 are fixedly connected between top plate 2 and bottom plate 1, two stirring assemblies 4 are provided between top plate 2 and bottom plate 1, two stirring assemblies 4 are symmetrically arranged and the same structure, the middle of support rod 3 is connected with baffle 31, baffle 31 is used to avoid two stirring assemblies 4 too close, stirring assembly 4 includes moving plate 41, placement through-hole 8 is also provided at the center of moving plate 41, base plate 42 is detachably connected on the top of moving plate 41 by bolt, two sliding grooves 421 are provided on the top of base plate 42, the bottom end of control plate 43 is slidably connected in sliding groove 421, wherein the left sliding groove 421 is rotatably connected with screw 423, and the bottom end of control plate 43 is threadedly connected with screw 423, so that control plate 43 can be moved by rotating screw 423;First gear 431 is rotatably connected in control plate 43, first gear 431 is coaxially connected with control handle 432, control handle 432 is located outside control plate 43, second gear 433 is meshedly connected with first gear 431, connecting rod 44 is coaxially connected with second gear, and arc-shaped electromagnetic stirring plate 45 is connected with connecting rod 44, so that electromagnetic stirring plate 45 can be rotated by rotating control handle 432;The stirring direction of magnetic field can be changed by rotating electromagnetic stirring plate 45, for example, the horizontal stirring is changed into inclined stirring;Setting arc-shaped structure can be more with container, iron core 46 is fixedly connected in electromagnetic stirring plate 45, coil 47 is wound on iron core 46, coil 47 is arranged to outside from both sides of electromagnetic stirring plate 45, and connecting hole 48 is also provided on the upper portion of both sides of electromagnetic stirring plate 45, and connecting hole 48 is used to connect with external water pipe, water is input on one side, and water is extracted on the other side, to complete water circulation flow, to carry out circulation cooling cooling;Magnetic field can be generated when coil 47 is wound on iron core 46 and energized, and the metal solution in container is electromagnetically stirred by the joint action of two sides magnetic field, pipeline through-hole 49 is arranged on moving plate 41, and the function of pipeline through-hole 49 is to pass through coil 47 and water pipe.A double-shaft motor 5 is connected to the bottom plate 1, output shafts on both sides of the double-shaft motor 5 are connected with first rotating rods 51, coaxial first bevel gears 52 are connected to free ends of the first rotating rods 51, second rotating rods 6 are rotatably connected to both sides of the bottom plate 1, coaxial second bevel gears 61 and third bevel gears 62 are connected to the second rotating rods 6, the second bevel gears 61 are engaged with the first bevel gears 52, threaded rods 7 are rotatably connected between the bottom plate 1 and the top plate 2, the screw rotation directions of upper and lower parts of the threaded rods 7 are opposite, the upper stirring assembly 4 is threadedly connected with the upper part of the threaded rod 7, the lower stirring assembly 4 is threadedly connected with the lower part of the threaded rod 7, coaxial fourth bevel gears 71 are connected to bottom ends of the threaded rods 7, the fourth bevel gears 71 are engaged with the third bevel gears 62, thus the distance between the upper and lower stirring assemblies can be adjusted by controlling the double-shaft motor 5, the optimal distance between the upper and lower stirring assemblies is found by adjusting the distance between the upper and lower stirring assemblies, and the two stirring assemblies are cooperated or sheared with each other.
[0013] The specific implementation process is as follows: first, the container or pipeline containing molten steel or metal liquid is placed into the device from top to bottom, because the diameters of the container and the pipeline are different due to different diameters of the cast slab required, the distance between the stirring inductor-electromagnetic stirring plate 45 and the cast slab shell needs to be adjusted, that is, under different pipe diameters, a smaller and constant effective air gap is maintained; the electromagnetic stirring plates 45 on both sides are moved by rotating the screw rod 423, and the specific adjustment distance needs to be adjusted according to the actual production situation; the electromagnetic stirring plate 45 can also be rotated by rotating the control handle 432, thereby further changing the stirring direction; at the same time, the distance between the two electromagnetic stirring assemblies 4 can also be controlled by controlling the double-shaft motor 5, and the distance between the upper and lower stirring assemblies 4 can also determine the stirring intensity; the distance between the two stirring assemblies 4 can be adjusted according to the actual production process, so that the two layers of stirring assemblies 4 can cooperate, the distance between the two layers of stirring assemblies 4 is too close to interfere with each other, and too far to form an effective cooperative or shear flow field, so the distance between the two layers of stirring assemblies needs to be adjusted to find the optimal distance; when the distance between the upper and lower stirring assemblies 4 is appropriate, the current flowing direction of the coil 47 is changed, so that the upper and lower stirring assemblies 4 drive the molten steel or metal liquid to rotate clockwise, so that a columnar rotating flow is formed between the two layers, which can greatly promote the mixing and temperature uniformity of the molten steel; if the current direction of the coil 47 is changed, the directions of the upper and lower stirring assemblies 4 driving the molten steel to rotate are opposite, a shear flow field is formed between the two layers, and this flow field is very effective for breaking dendrite crystals and expanding equiaxed crystal regions. The current of the coil 47, the distance between the upper and lower stirring assemblies 4 and the moving distance of the electromagnetic stirring plate 45 can be controlled according to the actual production needs, so as to ensure a strong stirring intensity in the process of electromagnetic stirring of different types of molten steel or metal liquid.
[0014] The above are only embodiments of the present application, and common technical solutions or characteristics in the scheme are not described in detail. For those skilled in the art, without departing from the technical solutions of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, and these will not affect the effect and practicality of the present application. The protection scope claimed in the present application should be subject to the content of its claims, and the specific implementation mode and the like recorded in the specification can be used to explain the content of the claims.
Claims
1. A telescopic electromagnetic stirring device for continuous casting in metallurgy, characterized in that: The system includes a base plate (1) and a top plate (2). The base plate (1) and the top plate (2) are connected by four support rods (3). Two electromagnetic stirring assemblies (4) are provided between the base plate (1) and the top plate (2). Each electromagnetic stirring assembly (4) includes a moving plate (41) connected to a base plate (42). The base plate (42) has a groove (421) and a fixed plate (422). A screw (423) is rotatably connected in the groove (421). A control plate (43) is threadedly connected to the screw (423). The control plate (43) is slidably connected in the groove (421). A first gear (431) is rotatably connected inside the control plate (43). The first gear (431) is coaxially connected to a control handle (432). The control plate (432) is located outside the control plate (43). The first gear (431) meshes with a second gear (433). The second gear (433) is coaxially connected to a connecting rod (44). The connecting rod (44) passes through the fixed plate (422). The connecting rod (44) is fixedly connected to an electromagnetic stirring plate (45). An iron core (46) is fixedly connected inside the electromagnetic stirring plate (45). A coil (47) is wound on the iron core (46). The coil (47) passes through... The electromagnetic stirring plate (45) is connected to an external power source. Connection holes (48) are provided on both sides of the electromagnetic stirring plate (45). These connection holes (48) are used to connect to external water pipes for water circulation cooling. A pipeline through-hole (49) is provided on the moving plate (4). This through-hole (49) is used for the coil (47) and the external water pipe to pass through. A dual-axis motor (5) is connected to the base plate (1). First rotating rods (51) are connected to the output shafts on both sides of the dual-axis motor (5). A first bevel gear (52) is connected to the free end of the first rotating rod (51). Second rotating rods (6) are rotatably connected to the inside of both sides of the base plate (1). (6) A second bevel gear (61) and a third bevel gear (62) are coaxially connected on the top. The second bevel gear (61) meshes with the first bevel gear (52). A threaded rod (7) is rotatably connected between the bottom plate (1) and the top plate (2). The threaded rod (7) is threadedly connected to the two moving plates (41). The threads on the upper and lower sides of the threaded rod (7) are opposite in direction. A fourth bevel gear (71) is connected to the bottom of the threaded rod (7). The fourth bevel gear (71) meshes with the third bevel gear (62). The bottom plate (1), the top plate (2) and the moving plate (41) are all provided with a placement through hole (8) for placing the container.
2. The telescopic electromagnetic stirring device for continuous casting in metallurgy according to claim 1, characterized in that: The bottom of the base plate (1) is connected to a walking wheel (11).
3. The telescopic electromagnetic stirring device for continuous casting in metallurgy according to claim 1, characterized in that: The electromagnetic stirring plate (45) has an arc-shaped structure, and the iron core (46) is correspondingly set to an arc-shaped structure.
4. The telescopic electromagnetic stirring device for continuous casting in metallurgy according to claim 1, characterized in that: A baffle plate (31) is provided on the support rod (3), and the baffle plate (31) is disposed between the two movable plates (41).
5. The telescopic electromagnetic stirring device for continuous casting in metallurgy according to claim 1, characterized in that: The base plate (42) is detachably connected to the movable plate (41) by bolts.