Furnace side electromagnetic stirring device of refining furnace and stirring method thereof

Abstract

The invention provides a refining furnace side electromagnetic stirring device and a stirring method thereof, and relates to the technical field of electromagnetic metallurgical equipment, the refining furnace side electromagnetic stirring device comprises a stable shielding part, an electromagnetic stirring part, a position control part and a multifunctional cooling part; the molten steel moving part is mounted on the ground; the stable shielding part is mounted on the molten steel moving part; the electromagnetic stirring parts are installed on the ground and located on the left side and the right side of the molten steel moving part. The position control part is mounted on the electromagnetic stirring part; the multifunctional cooling part is mounted on the ground and the electromagnetic stirring part; through the arrangement of four stabilizing grooves and four circular stabilizing rods, the refining furnace steel ladle is in a stable state after being connected with the movable trolley, and the stability of the refining furnace steel ladle is higher when molten steel is electromagnetically stirred; the problems that a refining furnace steel ladle and a trolley are prone to shaking during molten steel stirring due to the lack of an auxiliary structure generally, and auxiliary shielding cannot be carried out during lifting of the refining furnace steel ladle are solved.

Description

Technical Field

[0001] This invention belongs to the field of electromagnetic metallurgical equipment technology, and more specifically, it relates to an electromagnetic stirring device and stirring method for the furnace side of a refining furnace. Background Technology

[0002] Refining furnace steelmaking technology is one of the main methods of short-process steelmaking in modern steel plants. Refining furnace steelmaking mainly includes steel temperature control, composition control, and cleanliness control, providing steel that meets the requirements for continuous casting. The furnace-side stirring of the refining furnace, a non-contact stirring method, can effectively mix the entire melt in the refining furnace and accelerate the melting of alloying elements, thus purifying the steel. Non-contact stirring of the steel can homogenize the chemical composition and temperature of the steel after one stirring cycle, improve its cleanliness, and shorten the refining time.

[0003] The electromagnetic stirring devices currently in use still have the following problems: 1. They generally lack auxiliary structures, which makes it easy for the ladle and the trolley to shake during the stirring of molten steel, and there is no way to provide auxiliary shielding when the ladle is hoisted; 2. They cannot provide multi-functional cooling for the rotary electromagnetic stirrer and the traveling wave electromagnetic stirrer, which affects the cooling effect of the rotary electromagnetic stirrer and the traveling wave electromagnetic stirrer; 3. When there is a positional deviation between the ladle and the rotary electromagnetic stirrer or the traveling wave electromagnetic stirrer, they cannot automatically alert the operators, which affects the stirring effect of the molten steel, and the trolley is prone to move during the stirring of molten steel. Summary of the Invention

[0004] This disclosure relates to a furnace-side electromagnetic stirring device and method for a refining furnace, comprising a molten steel moving part, a stabilizing shielding part, an electromagnetic stirring part, a position control part, and a multi-functional cooling part; the arrangement of four stabilizing grooves and four circular stabilizing rods ensures that the ladle of the refining furnace is in a stable state after being connected to the moving trolley, thus improving the stability of the ladle during electromagnetic stirring of the molten steel; the arrangement of water-cooling components and two sets of water-cooling pipes provides liquid cooling for the rotary electromagnetic stirrer and the traveling wave electromagnetic stirrer; when the two air-cooling components are working, the gas in the two air-cooling components is discharged through two diffusers, accelerating the refining furnace... The gas flow outside the ladle provides a cooling effect. When one or both detection switches 'a' are pressed, the alarm in the control unit sounds, indicating that the two position control levers are not concentric with the two sets of control holes, allowing workers to adjust the position of the moving trolley appropriately. This solves the problems of easy shaking between the ladle and the trolley during steel stirring, lack of auxiliary shielding during ladle hoisting, inability to provide multi-functional cooling for the rotary electromagnetic stirrer and traveling wave electromagnetic stirrer, failure to automatically alert workers when there is a positional deviation in the ladle, and easy movement of the trolley during steel stirring.

[0005] In a first aspect, this disclosure provides a furnace-side electromagnetic stirring device for a refining furnace, comprising: a molten steel moving part, a stabilizing and shielding part, an electromagnetic stirring part, a position control part, a multi-functional cooling part, and an electrical control unit; the molten steel moving part is installed on the ground; the stabilizing and shielding part is installed on the molten steel moving part, and is used to position the molten steel moving part, and also to assist in shielding the molten steel in the molten steel moving part; the electromagnetic stirring part is installed on the ground and is located on the left and right sides of the molten steel moving part, and is used to stir the molten steel in the molten steel moving part; the position control part is installed on the electromagnetic stirring part, and is used to limit the molten steel moving part and the electromagnetic stirring part; the multi-functional cooling part is installed on the ground and on the electromagnetic stirring part, and is used to cool the electromagnetic stirring part; the electrical control unit is installed on the ground, and is used to control the molten steel moving part, the electromagnetic stirring part, and the multi-functional cooling part.

[0006] In at least some embodiments, the molten steel moving part includes: a linear track a, a moving trolley, and a refining furnace ladle; there are two linear tracks a, and the two linear tracks a are fixedly installed on the ground; the moving trolley is installed on the two linear tracks a, and the moving trolley has four stabilizing grooves and two sets of control circular holes, and the moving trolley is electrically connected to the electrical control unit; the refining furnace ladle is slidably installed on the moving trolley.

[0007] In at least some embodiments, the stabilizing shield includes: a circular stabilizing rod, a circular reset plate, a support spring a, and a shielding ring; there are four circular stabilizing rods, which are slidably mounted on the ladle of the refining furnace, and the outer ends of the four circular stabilizing rods are inserted into corresponding stabilizing grooves; there are four circular reset plates, which are fixedly mounted on the outside of the four circular stabilizing rods; there are four support springs a, which are sleeved on the outside of the four circular stabilizing rods, and the four support springs a are located on the outside of the four circular reset plates; the shielding ring is slidably mounted on the top of the ladle of the refining furnace.

[0008] In at least some embodiments, the stabilizing shield further includes: an L-shaped connecting frame, an arc-shaped force-bearing frame, and an irregularly shaped pushing frame; there are two L-shaped connecting frames, which are slidably mounted on the ladle of the refining furnace, and the top ends of the two L-shaped connecting frames are fixedly connected to the shielding ring; there are two arc-shaped force-bearing frames, which are fixedly mounted on the bottom of the two L-shaped connecting frames; there are two irregularly shaped pushing frames, which are fixedly mounted on the inner side of the two arc-shaped force-bearing frames, and the bottom ends of the two irregularly shaped pushing frames are in contact with four circular stabilizing rods.

[0009] In at least some embodiments, the electromagnetic stirring unit includes: a linear track b, a rotary trolley, and a traveling wave trolley; there are four linear tracks b, and the four linear tracks b are fixedly installed on the ground; the rotary trolley is installed on the two linear tracks b on the left side, and the rotary trolley is electrically connected to the electronic control unit; the traveling wave trolley is installed on the two linear tracks b on the right side, and the traveling wave trolley is electrically connected to the electronic control unit.

[0010] In at least some embodiments, the electromagnetic stirring unit further includes: a rotary electromagnetic stirrer and a traveling wave electromagnetic stirrer; the rotary electromagnetic stirrer is mounted on a rotary trolley and is electrically connected to an electronic control unit; the traveling wave electromagnetic stirrer is mounted on a traveling wave trolley and is electrically connected to an electronic control unit.

[0011] In at least some embodiments, the position control unit includes: position control rods, limiting cylinders, and movable stabilizing heads; there are two position control rods, which are fixedly mounted on the rotary trolley and the traveling wave trolley, and the left position control rod is inserted into the control circular hole; there are two limiting cylinders, which are fixedly mounted on the two position control rods, and the left limiting cylinder is in contact with the moving trolley; there are four movable stabilizing heads, which are slidably mounted on the two position control rods, and the two left movable stabilizing heads are in contact with the moving trolley.

[0012] In at least some embodiments, the position control unit further includes: a support spring b, a detection switch a, and a detection switch b; there are two support springs b, and the two support springs b are installed on the inner side of four limiting cylinders; there are two detection switches a, and the two detection switches a are fixedly installed on two position control rods, and the detection switches a are electrically connected to the electronic control unit; there are two detection switches b, and the two detection switches b are fixedly installed on two limiting cylinders; the two detection switches b are electrically connected to the electronic control unit, and the detection switch b on the left is in a pressed state.

[0013] In at least some embodiments, the multifunctional cooling unit includes: a water-cooled assembly, water-cooled pipes, an air-cooled assembly, air ducts, and an air diffuser; the water-cooled assembly is installed on the ground and is electrically connected to the electronic control unit; there are two sets of water-cooled pipes, one set installed on the water-cooled assembly and the rotary electromagnetic stirrer, and the other set installed on the water-cooled assembly and the traveling wave electromagnetic stirrer; there are two air-cooled assemblies, which are fixedly installed on the rotary trolley and the traveling wave trolley, and are electrically connected to the electronic control unit; there are two air ducts, and the inner ends of the two air ducts are fixedly installed on the two air-cooled assemblies; there are two air diffusers, and the two air diffusers are fixedly installed on the outer ends of the two air ducts.

[0014] In another aspect, this disclosure provides a method for electromagnetic stirring on the furnace side of a refining furnace, comprising the following steps: 1) The moving trolley is controlled by the electronic control unit to move the ladle of the refining furnace to the position to be stirred; 2) The movement of the rotary carriage and the traveling wave carriage is controlled by the electronic control unit; 3) The water-cooled components and two sets of air-cooled components are started via the electronic control unit; 4) When the rotary electromagnetic stirrer approaches the ladle of the refining furnace, the electronic control unit sends an excitation current to the rotary electromagnetic stirrer; the traveling wave electromagnetic stirrer generates a rotating magnetic field to rotate and flow the molten steel in the ladle of the refining furnace. 5) When the traveling wave electromagnetic stirrer approaches the ladle of the refining furnace, the electronic control unit sends an excitation current to the traveling wave electromagnetic stirrer; the traveling wave electromagnetic stirrer generates a traveling wave magnetic field that pushes the molten steel in the ladle of the refining furnace from bottom to top. 6) When the rotary electromagnetic stirrer and the traveling wave electromagnetic stirrer approach the ladle of the refining furnace at the same time, the electronic control unit simultaneously supplies excitation current to the rotary electromagnetic stirrer and the traveling wave electromagnetic stirrer; the rotary electromagnetic stirrer and the traveling wave electromagnetic stirrer generate a spiral magnetic field that causes the molten steel in the ladle of the refining furnace to flow spirally upward. 7) Wait for the molten steel in the ladle of the refining furnace to be stirred completely.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The four stabilizing grooves and four circular stabilizing rods of this invention ensure that the ladle of the refining furnace is in a stable state after being connected to the moving trolley, thus improving the stability of the ladle during electromagnetic stirring of the molten steel. When the external hoisting equipment lifts the ladle, the two arc-shaped force-bearing frames move upwards under force, making the top of the shielding ring higher than the top of the ladle, which provides auxiliary shielding for the molten steel and reduces safety hazards. When the external hoisting equipment continues to work, it moves the ladle upwards, separating it from the moving trolley. Furthermore, when the two arc-shaped force-bearing frames move upward under force, the bottom ends of the two irregularly shaped push frames separate from the four circular stabilizing rods; when the bottom ends of the two irregularly shaped push frames separate from the four circular stabilizing rods, the four circular stabilizing rods automatically move inward under the action of the four support springs a, so that the four circular stabilizing rods automatically separate from the four stabilizing grooves, without hindering the connection or separation of the refining furnace ladle and the moving trolley.

[0016] 2. The rotary electromagnetic stirrer and traveling wave electromagnetic stirrer of this invention can move automatically; when the rotary electromagnetic stirrer is close to the ladle of the refining furnace, the molten steel moves in a circular motion; when the traveling wave electromagnetic stirrer is close to the ladle of the refining furnace, the molten steel moves in a straight line. This allows workers to adjust the stirring mode of the molten steel by controlling the distance between the rotary electromagnetic stirrer and the traveling wave electromagnetic stirrer and the ladle of the refining furnace, thereby improving the stirring effect of the molten steel. In addition, the water-cooling components and two sets of water-cooling pipes provide liquid cooling for the rotary electromagnetic stirrer and the traveling wave electromagnetic stirrer. When the two air-cooling components are working, the gas in the two air-cooling components is discharged through the two diffusers, which blows between the ladle of the refining furnace and the rotary electromagnetic stirrer or between the ladle of the refining furnace and the traveling wave electromagnetic stirrer, thereby accelerating the gas flow rate outside the ladle of the refining furnace and achieving the air-cooling effect.

[0017] 3. In this invention, when the rotary trolley moves inward, the left position control rod is inserted into the control hole; when the traveling wave trolley moves inward, the right position control rod is inserted into the control hole; when the rotary trolley and the traveling wave trolley move inward simultaneously, the two position control rods are inserted into the two sets of control holes, which limit the movement of the trolley and prevent it from moving during steel molten agitation; when one or both detection switches a are pressed, the alarm in the electrical control unit sounds, indicating that the two position control rods are not concentric with the two sets of control holes, allowing workers to adjust the position of the trolley appropriately so that the ladle in the refining furnace is in the accurate agitation position; In addition, the two limiting cylinders and four movable stabilizing heads also limit the rotation of the trolley and the traveling wave trolley, ensuring that the rotary electromagnetic stirrer and the traveling wave electromagnetic stirrer are in a stable state when the molten steel is being stirred. When the rotary electromagnetic stirrer and the traveling wave electromagnetic stirrer move inward at the same time, the two detection switches b are pressed at the same time. At this time, the alarm in the electrical control unit sounds an alarm, indicating that the molten steel is being stirred violently, which helps workers to stay away. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0019] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0020] In the attached diagram: Figure 1 A three-dimensional structural schematic diagram of the present invention is shown; Figure 2 A partially exploded structural diagram of the molten steel moving part of the present invention is shown; Figure 3 A schematic diagram of the structure of the stabilizing shielding part of the present invention is shown; Figure 4 The present invention is shown. Figure 1 A schematic diagram of the structure from the perspective of the viewpoint; Figure 5 The present invention is shown. Figure 4 A magnified schematic diagram of a portion of region A in the middle; Figure 6 A schematic diagram of the center cross-sectional structure of the position control unit of the present invention is shown; Figure 7 The present invention is shown. Figure 1 A schematic diagram of the bottom view structure; Figure 8 The present invention is shown. Figure 7 A magnified schematic diagram of a portion of region B in the middle; Figure 9 A schematic diagram of the structure of the air-cooled assembly, air duct, and air diffuser of the present invention is shown; Figure 10 The present invention is shown. Figure 1 A magnified schematic diagram of the structure of region C in the middle.

[0021] List of reference numerals in the attached diagram: 100. Molten steel moving part; 101. Linear track a; 102. Moving trolley; 1021. Stabilizing groove; 1022. Control hole; 103. Refining furnace ladle; 200. Stabilizing shield; 201. Circular stabilizing bar; 202. Circular reset plate; 203. Support spring a; 204. Shielding ring; 205. L-shaped connecting frame; 206. Arc-shaped force-bearing frame; 207. Irregularly shaped push frame; 300. Electromagnetic stirring unit; 301. Linear track b; 302. Rotary trolley; 303. Traveling wave trolley; 304. Rotary electromagnetic stirrer; 305. Traveling wave electromagnetic stirrer; 400. Position control unit; 401. Position control lever; 402. Limiting cylinder; 403. Movable stabilizing head; 404. Support spring b; 405. Detection switch a; 406. Detection switch b; 500. Multifunctional cooling unit; 501. Water-cooled components; 502. Water-cooled piping; 503. Air-cooled components; 504. Air ducts; 505. Air diffusers; 600. Electrical control unit. Detailed Implementation

[0022] To make the objectives, solutions, and advantages of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Unless otherwise stated, the terms used herein have their ordinary meanings in the art. The same reference numerals in the drawings represent the same parts.

[0023] Example: Please refer to Figures 1 to 10 As shown: This invention provides a furnace-side electromagnetic stirring device for a refining furnace, comprising: a molten steel moving part 100, a stabilizing and shielding part 200, an electromagnetic stirring part 300, a position control part 400, a multi-functional cooling part 500, and an electrical control unit 600; the molten steel moving part 100 is installed on the ground; the stabilizing and shielding part 200 is installed on the molten steel moving part 100, and the stabilizing and shielding part 200 is used to position the molten steel moving part 100, and also to assist in shielding the molten steel in the molten steel moving part 100; the electromagnetic stirring part 300 is installed on the ground, and the electromagnetic stirring part 300 is positioned... On the left and right sides of the molten steel moving part 100, electromagnetic stirring parts 300 are used to stir the molten steel in the molten steel moving part 100; position control parts 400 are installed on the electromagnetic stirring parts 300, and the position control parts 400 are used to limit the molten steel moving part 100 and the electromagnetic stirring parts 300; multi-functional cooling parts 500 are installed on the ground and on the electromagnetic stirring parts 300, and the multi-functional cooling parts 500 are used to cool the electromagnetic stirring parts 300; electrical control units 600 are installed on the ground, and the electrical control units 600 are used to control the molten steel moving part 100, the electromagnetic stirring parts 300 and the multi-functional cooling parts 500.

[0024] In this embodiment of the disclosure, such as Figure 2 , Figure 3 and Figure 5 As shown, the molten steel moving part 100 includes: a linear track a101, a moving trolley 102, and a refining furnace ladle 103; there are two linear tracks a101, and the two linear tracks a101 are fixedly installed on the ground; the moving trolley 102 is installed on the two linear tracks a101, and the moving trolley 102 has four stabilizing grooves 1021 and two sets of control circular holes 1022, and the moving trolley 102 is electrically connected to the electrical control unit 600; the refining furnace ladle 103 is slidably installed on the moving trolley 102; The stabilizing shielding part 200 includes: circular stabilizing rods 201, circular reset plates 202, support springs a203, and shielding rings 204; four circular stabilizing rods 201 are provided, and the four circular stabilizing rods 201 are slidably mounted on the ladle 103 of the refining furnace, with the outer ends of the four circular stabilizing rods 201 inserted into corresponding stabilizing grooves 1021; four circular reset plates 202 are provided, and the four circular reset plates 202 are fixedly mounted on the outside of the four circular stabilizing rods 201; four support springs a203 are provided, and the four support springs a203 are sleeved on the outside of the four circular stabilizing rods 201, and the four support springs a203 are located on the outside of the four circular reset plates 202; the shielding rings 204 are slidably mounted on the ladle 103 of the refining furnace, with the outer ends of the four circular stabilizing rods 201 inserted into corresponding stabilizing grooves 1021; four circular reset plates 202 are provided, and four circular reset plates 202 are fixedly mounted on the outside of the four circular stabilizing rods 201; the shielding rings 204 are slidably mounted on the ladle 1021, with the outer ends of the four circular stabilizing rods 201, and four circular reset plates 202 are fixedly mounted on the outside of the four circular reset plates 202 ... The stabilizing shield 200 is mounted on the top of the ladle 103 of the refining furnace. The stabilizing shield 200 also includes: an L-shaped connecting frame 205, an arc-shaped force-bearing frame 206, and a shaped pushing frame 207. Two L-shaped connecting frames 205 are provided, and the two L-shaped connecting frames 205 are slidably mounted on the ladle 103 of the refining furnace, with the tops of the two L-shaped connecting frames 205 fixedly connected to the shielding ring 204. Two arc-shaped force-bearing frames 206 are provided, and the two arc-shaped force-bearing frames 206 are fixedly mounted on the bottom of the two L-shaped connecting frames 205. Two shaped pushing frames 207 are provided, and the two shaped pushing frames 207 are fixedly mounted on the inner side of the two arc-shaped force-bearing frames 206, with the bottom ends of the two shaped pushing frames 207 contacting four circular stabilizing rods 201. Its specific functions are as follows: Because the moving trolley 102 has four stabilizing grooves 1021, and four circular stabilizing rods 201 are slidably installed on the refining furnace ladle 103, with the outer ends of the four circular stabilizing rods 201 inserted into the corresponding stabilizing grooves 1021, the refining furnace ladle 103 is in a stable state after being connected to the moving trolley 102, resulting in higher stability of the refining furnace ladle 103 during electromagnetic stirring of the molten steel; and because the shielding ring 204 is slidably installed on the top of the refining furnace ladle 103, and the tops of the two L-shaped connecting frames 205 are connected to the shielding ring 204... The blocking ring 204 is fixedly connected, and the two arc-shaped force-bearing frames 206 are fixedly installed at the bottom of the two L-shaped connecting frames 205. When the external hoisting equipment hoists the refining furnace ladle 103, the two arc-shaped force-bearing frames 206 move upward first after being subjected to force, so that the top of the blocking ring 204 is higher than the top of the refining furnace ladle 103, which plays an auxiliary role in blocking the molten steel and reducing safety hazards. When the external hoisting equipment continues to work, the external hoisting equipment drives the refining furnace ladle 103 to move upward, so that the refining furnace ladle 103 separates from the moving trolley 102. Furthermore, since the two irregularly shaped push frames 207 are fixedly installed inside the two arc-shaped force-bearing frames 206, and the bottom ends of the two irregularly shaped push frames 207 are in contact with the four circular stabilizing rods 201, when the two arc-shaped force-bearing frames 206 move upward under force, the bottom ends of the two irregularly shaped push frames 207 separate from the four circular stabilizing rods 201. Also, since the four circular reset plates 202 are fixedly installed outside the four circular stabilizing rods 201, and the four support springs a203 are sleeved on the outside of the four circular stabilizing rods 201, and the four support springs a203 are located outside the four circular reset plates 202, when the bottom ends of the two irregularly shaped push frames 207 separate from the four circular stabilizing rods 201, the four circular stabilizing rods 201 automatically move inward under the action of the four support springs a203, so that the four circular stabilizing rods 201 automatically separate from the four stabilizing grooves 1021, without hindering the connection or separation of the refining furnace ladle 103 and the moving trolley 102.

[0025] In this embodiment of the disclosure, such as Figure 1 , Figure 9 and Figure 10 As shown, the electromagnetic stirring unit 300 includes: a linear track b301, a rotary trolley 302, and a traveling wave trolley 303; four linear tracks b301 are provided, and the four linear tracks b301 are fixedly installed on the ground; the rotary trolley 302 is installed on the two linear tracks b301 on the left side, and the rotary trolley 302 is electrically connected to the electronic control unit 600; the traveling wave trolley 303 is installed on the two linear tracks b301 on the right side, and the traveling wave trolley 303 is electrically connected to the electronic control unit 600; the electromagnetic stirring unit 300 also includes: a rotary electromagnetic stirrer 304 and a traveling wave electromagnetic stirrer 305; the rotary electromagnetic stirrer 304 is installed on the rotary trolley 302, and the rotary electromagnetic stirrer 304 is electrically connected to the electronic control unit 600; the traveling wave electromagnetic stirrer 305 is installed on the traveling wave trolley 303, and the traveling wave electromagnetic stirrer 305 is electrically connected to the electronic control unit 600; The multi-functional cooling unit 500 includes: a water-cooled assembly 501, water-cooled pipes 502, an air-cooled assembly 503, air ducts 504, and an air diffuser 505; the water-cooled assembly 501 is installed on the ground and is electrically connected to the electronic control unit 600; there are two sets of water-cooled pipes 502, one set is installed on the water-cooled assembly 501 and the rotary electromagnetic stirrer 304, and the other set is installed on the water-cooled assembly 501 and the traveling wave electromagnetic stirrer 305; there are two air-cooled assemblies 503, which are fixedly installed on the rotary carriage 302 and the traveling wave carriage 303, and are electrically connected to the electronic control unit 600; there are two air ducts 504, and the inner ends of the two air ducts 504 are fixedly installed on the two air-cooled assemblies 503; there are two air diffusers 505, which are fixedly installed on the outer ends of the two air ducts 504. Its specific function is as follows: Since the rotary electromagnetic stirrer 304 is installed on the rotary trolley 302 and the traveling wave electromagnetic stirrer 305 is installed on the traveling wave trolley 303, the rotary electromagnetic stirrer 304 and the traveling wave electromagnetic stirrer 305 can move automatically; when the rotary electromagnetic stirrer 304 is close to the ladle 103 of the refining furnace, the molten steel moves in a circular motion; when the traveling wave electromagnetic stirrer 305 is close to the ladle 103 of the refining furnace, the molten steel moves in a straight line. This makes it convenient for workers to adjust the stirring mode of the molten steel by controlling the distance between the rotary electromagnetic stirrer 304 and the traveling wave electromagnetic stirrer 305 and the ladle 103 of the refining furnace, thereby improving the stirring effect of the molten steel. Furthermore, since one set of water-cooled pipes 502 is installed on the water-cooled assembly 501 and the rotary electromagnetic stirrer 304, and another set of water-cooled pipes 502 is installed on the water-cooled assembly 501 and the traveling wave electromagnetic stirrer 305, they provide liquid cooling for the rotary electromagnetic stirrer 304 and the traveling wave electromagnetic stirrer 305. Also, since two air-cooled assemblies 503 are fixedly installed on the rotary trolley 302 and the traveling wave trolley 303, and the inner ends of two air ducts 504 are fixedly installed on the two air-cooled assemblies 503, and two diffusers 505 are fixedly installed on the outer ends of the two air ducts 504, when the two air-cooled assemblies 503 are working, the gas in the two air-cooled assemblies 503 is discharged through the two diffusers 505, which has a blowing effect between the refining furnace ladle 103 and the rotary electromagnetic stirrer 304 or between the refining furnace ladle 103 and the traveling wave electromagnetic stirrer 305, thus accelerating the gas flow rate outside the refining furnace ladle 103 and achieving the air-cooling effect.

[0026] In this embodiment of the disclosure, such as Figure 6 and Figure 8As shown, the position control unit 400 includes: position control levers 401, limiting cylinders 402, and movable stabilizing heads 403; two position control levers 401 are provided, and the two position control levers 401 are fixedly installed on the rotary carriage 302 and the traveling wave carriage 303, and the left position control lever 401 is inserted into the control circular hole 1022; two limiting cylinders 402 are provided, and the two limiting cylinders 402 are fixedly installed on the two position control levers 401, and the left limiting cylinder 402 is in contact with the moving carriage 102; four movable stabilizing heads 403 are provided, and the four movable stabilizing heads 403 are slidably installed on the two position control levers 401, and the two movable stabilizing heads 403 on the left are in contact with the moving carriage 102. The trolley 102 makes contact; the position control unit 400 also includes: a support spring b404, a detection switch a405, and a detection switch b406; there are two support springs b404, and the two support springs b404 are installed on the inner side of the four limit cylinders 402; there are two detection switches a405, and the two detection switches a405 are fixedly installed on the two position control rods 401, and the detection switches a405 are electrically connected to the electronic control unit 600; there are two detection switches b406, and the two detection switches b406 are fixedly installed on the two limit cylinders 402; the two detection switches b406 are electrically connected to the electronic control unit 600, and the detection switch b406 on the left is in the pressed state; Its specific function is as follows: Because the moving trolley 102 has two sets of control holes 1022, and two position control levers 401 are fixedly installed on the rotating trolley 302 and the traveling wave trolley 303, when the rotating trolley 302 moves inward, the left position control lever 401 is inserted into the control hole 1022; when the traveling wave trolley 303 moves inward, the right position control lever 401 is inserted into the control hole 1022; when the rotating trolley 302 and the traveling wave trolley 303 move inward simultaneously, the two position control levers 401 are inserted into the two sets of control holes 1022. The circular hole 1022 serves as a limit for the moving trolley 102, preventing it from moving during the stirring of molten steel. Furthermore, since the two detection switches a405 are fixedly installed on the two position control levers 401, when one or both a405 are pressed, the alarm in the electrical control unit 600 sounds, indicating that the two position control levers 401 are not concentric with the two sets of control circular holes 1022. This allows workers to adjust the position of the moving trolley 102 appropriately, ensuring that the ladle 103 in the refining furnace is in the correct stirring position. Furthermore, since the two limiting cylinders 402 are fixedly installed on the two position control rods 401, and the four movable stabilizing heads 403 are slidably installed on the two position control rods 401, and the two support springs b404 are installed on the inner side of the four limiting cylinders 402, they also play a limiting role on the rotary carriage 302 and the traveling wave carriage 303, so that the rotary electromagnetic stirrer 304 and the traveling wave electromagnetic stirrer 305 are in a stable state when the molten steel is stirred; and since the two detection switches b406 are fixedly installed on the two limiting cylinders 402, when the rotary electromagnetic stirrer 304 and the traveling wave electromagnetic stirrer 305 move inward at the same time, the two detection switches b406 are simultaneously pressed. At this time, the alarm in the electrical control unit 600 emits an alarm sound, indicating that the molten steel is in a state of violent stirring, which is beneficial for workers to stay away.

[0027] This invention provides a method for electromagnetic stirring on the furnace side of a refining furnace, comprising the following steps: 1) The moving trolley 102 is controlled by the electronic control unit 600 to move the refining furnace ladle 103 to the position to be stirred; 2) The rotary carriage 302 and the traveling wave carriage 303 are moved by the electronic control unit 600; 3) The water-cooled assembly 501 and the two sets of air-cooled assemblies 503 are started through the electronic control unit 600; 4) When the rotary electromagnetic stirrer 304 approaches the ladle 103 of the refining furnace, the electronic control unit 600 sends an excitation current to the rotary electromagnetic stirrer 304; the traveling wave electromagnetic stirrer 305 generates a rotating magnetic field to rotate and flow the molten steel in the ladle 103 of the refining furnace. 5) When the traveling wave electromagnetic stirrer 305 approaches the ladle 103 of the refining furnace, the electronic control unit 600 supplies excitation current to the traveling wave electromagnetic stirrer 305; the traveling wave electromagnetic stirrer 305 generates a traveling wave magnetic field to push the molten steel in the ladle 103 of the refining furnace from bottom to top. 6) When the rotary electromagnetic stirrer 304 and the traveling wave electromagnetic stirrer 305 approach the ladle 103 of the refining furnace at the same time, the electronic control unit 600 simultaneously supplies excitation current to the rotary electromagnetic stirrer 304 and the traveling wave electromagnetic stirrer 305; the rotary electromagnetic stirrer 304 and the traveling wave electromagnetic stirrer 305 generate a spiral magnetic field that causes the molten steel in the ladle 103 of the refining furnace to flow spirally upward. 7) Wait for the molten steel in ladle 103 of the refining furnace to be stirred completely.

[0028] The specific usage and function of this embodiment are as follows: In use, the present invention first moves the mobile trolley 102 via the electronic control unit 600, moving the refining furnace ladle 103 to the stirring position; then, the electronic control unit 600 activates the water-cooling assembly 501 and two sets of air-cooling assemblies 503; the water-cooling assembly 501 and the two sets of water-cooling pipes 502 provide liquid cooling for the rotary electromagnetic stirrer 304 and the traveling wave electromagnetic stirrer 305; when the two air-cooling assemblies 503 are working, the gas in the two air-cooling assemblies 503 is discharged through the two air diffusers 505, providing air circulation between the refining furnace ladle 103 and the rotary electromagnetic stirrer 304 or between the refining furnace ladle 103 and the traveling wave electromagnetic stirrer 305. The movement accelerates the gas flow rate outside the ladle 103 of the refining furnace, achieving a cooling effect. The rotary carriage 302 and traveling wave carriage 303 are controlled by the electronic control unit 600. When the rotary carriage 302 moves inward, the left position control lever 401 is inserted into the control hole 1022; when the traveling wave carriage 303 moves inward, the right position control lever 401 is inserted into the control hole 1022; when both the rotary carriage 302 and the traveling wave carriage 303 move inward simultaneously, the two position control levers 401 are inserted into the two sets of control holes 1022, limiting the movement of the carriage 102 and preventing it from moving during steel agitation. Movement occurs; when one or both detection switches a405 are pressed, the alarm in the control unit 600 sounds, indicating that the two position control levers 401 are not concentric with the two sets of control holes 1022, allowing workers to adjust the position of the moving trolley 102 appropriately, so that the ladle 103 of the refining furnace is in the accurate stirring position; the setting of the two limit cylinders 402 and the four movable stabilizing heads 403 also plays a limiting role for the rotating trolley 302 and the traveling wave trolley 303, so that the rotating electromagnetic stirrer 304 and the traveling wave electromagnetic stirrer 305 are in a stable state when the molten steel is stirred; when the rotating electromagnetic stirrer 304 and the traveling wave electromagnetic stirrer 305 are in a stable state, the movement occurs ... When the two detection switches b406 move inward simultaneously, both switches are pressed. At this time, the alarm in the control unit 600 sounds, indicating that the molten steel is being vigorously stirred, which helps workers to stay away. When the rotary electromagnetic stirrer 304 approaches the ladle 103 of the refining furnace, the molten steel moves in a circular motion. When the traveling wave electromagnetic stirrer 305 approaches the ladle 103 of the refining furnace, the molten steel moves in a straight line. This allows workers to adjust the stirring mode of the molten steel by controlling the distance between the rotary electromagnetic stirrer 304 and the traveling wave electromagnetic stirrer 305 and the ladle 103 of the refining furnace, thus improving the stirring effect. Wait for the stirring of the molten steel in the ladle 103 of the refining furnace to be completed. When it is necessary to move the stirred molten steel, the moving trolley 102 is moved by the electronic control unit 600, so that the refining furnace ladle 103 is moved out of the stirring position. The accessories on the external hoisting equipment are connected to the two arc-shaped support frames 206. When the external hoisting equipment lifts the refining furnace ladle 103, the two arc-shaped support frames 206 move upwards under force, so that the top of the shielding ring 204 is higher than the top of the refining furnace ladle 103, thus providing auxiliary shielding for the molten steel and reducing safety hazards. When the external hoisting equipment continues to work, it moves the refining furnace ladle 103... 3. Move upward to separate the refining furnace ladle 103 from the moving trolley 102; when the two arc-shaped force-bearing frames 206 move upward under force, the bottom ends of the two irregularly shaped push frames 207 separate from the four circular stabilizing rods 201; when the bottom ends of the two irregularly shaped push frames 207 separate from the four circular stabilizing rods 201, the four circular stabilizing rods 201 automatically move inward under the action of the four support springs a203, so that the four circular stabilizing rods 201 automatically separate from the four stabilizing grooves 1021, without hindering the connection or separation of the refining furnace ladle 103 from the moving trolley 102.

[0029] The following points should be noted in this article: 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0030] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0031] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. An electromagnetic stirring device for the furnace side of a refining furnace, comprising: The steel molten moving part (100), the stabilizing and shielding part (200), the electromagnetic stirring part (300), the position control part (400), the multi-functional cooling part (500), and the electrical control unit (600) are provided. The steel molten moving part (100) is installed on the ground. The stabilizing and shielding part (200) is installed on the steel molten moving part (100), and is used to position the steel molten moving part (100) and also to assist in shielding the steel molten moving part (100). The electromagnetic stirring part (300) is installed on the ground and is located on the left and right sides of the steel molten moving part (100). On one side, the electromagnetic stirring unit (300) is used to stir the molten steel in the molten steel moving unit (100); the position control unit (400) is installed on the electromagnetic stirring unit (300), and the position control unit (400) is used to limit the molten steel moving unit (100) and the electromagnetic stirring unit (300); the multi-functional cooling unit (500) is installed on the ground and on the electromagnetic stirring unit (300), and the multi-functional cooling unit (500) is used to cool the electromagnetic stirring unit (300); the electrical control unit (600) is installed on the ground, and the electrical control unit (600) is used to control the molten steel moving unit (100), the electromagnetic stirring unit (300) and the multi-functional cooling unit (500).

2. The refining furnace side electromagnetic stirring device according to claim 1, characterized in that, The molten steel moving part (100) includes: a linear track a (101), a moving trolley (102), and a refining furnace ladle (103); there are two linear tracks a (101), and the two linear tracks a (101) are fixedly installed on the ground; the moving trolley (102) is installed on the two linear tracks a (101), and the moving trolley (102) has four stabilizing grooves (1021) and two sets of control round holes (1022), and the moving trolley (102) is electrically connected to the electrical control unit (600); the refining furnace ladle (103) is slidably installed on the moving trolley (102).

3. The refining furnace side electromagnetic stirring device according to claim 2, characterized in that, The stabilizing shielding part (200) includes: a circular stabilizing rod (201), a circular reset plate (202), a support spring a (203), and a shielding ring (204); there are four circular stabilizing rods (201), and the four circular stabilizing rods (201) are slidably installed on the ladle (103) of the refining furnace, and the outer ends of the four circular stabilizing rods (201) are inserted into the corresponding stabilizing grooves (1021); there are four circular reset plates (202), and the four circular reset plates (202) are fixedly installed on the outside of the four circular stabilizing rods (201); there are four support springs a (203), and the four support springs a (203) are sleeved on the outside of the four circular stabilizing rods (201), and the four support springs a (203) are located on the outside of the four circular reset plates (202); the shielding ring (204) is slidably installed on the top of the ladle (103) of the refining furnace.

4. The refining furnace side electromagnetic stirring device according to claim 3, characterized in that, The stabilizing shield (200) further includes: an L-shaped connecting frame (205), an arc-shaped force-bearing frame (206), and an irregularly shaped pushing frame (207); there are two L-shaped connecting frames (205), and the two L-shaped connecting frames (205) are slidably installed on the ladle (103) of the refining furnace, and the top of the two L-shaped connecting frames (205) is fixedly connected to the shielding ring (204); there are two arc-shaped force-bearing frames (206), and the two arc-shaped force-bearing frames (206) are fixedly installed at the bottom of the two L-shaped connecting frames (205); there are two irregularly shaped pushing frames (207), and the two irregularly shaped pushing frames (207) are fixedly installed on the inner side of the two arc-shaped force-bearing frames (206), and the bottom of the two irregularly shaped pushing frames (207) is in contact with four circular stabilizing rods (201).

5. The refining furnace side electromagnetic stirring device according to claim 2, characterized in that, The electromagnetic stirring unit (300) includes: a linear track b (301), a rotary trolley (302), and a traveling wave trolley (303); there are four linear tracks b (301), and the four linear tracks b (301) are fixedly installed on the ground; the rotary trolley (302) is installed on the two linear tracks b (301) on the left side, and the rotary trolley (302) is electrically connected to the electronic control unit (600); the traveling wave trolley (303) is installed on the two linear tracks b (301) on the right side, and the traveling wave trolley (303) is electrically connected to the electronic control unit (600).

6. The refining furnace side electromagnetic stirring device according to claim 5, characterized in that, The electromagnetic stirring unit (300) further includes: a rotary electromagnetic stirrer (304) and a traveling wave electromagnetic stirrer (305); the rotary electromagnetic stirrer (304) is mounted on a rotary trolley (302) and is electrically connected to the electronic control unit (600); the traveling wave electromagnetic stirrer (305) is mounted on a traveling wave trolley (303) and is electrically connected to the electronic control unit (600).

7. The refining furnace side electromagnetic stirring device according to claim 5, characterized in that, The position control unit (400) includes: a position control rod (401), a limiting cylinder (402), and a movable stabilizing head (403); there are two position control rods (401), and the two position control rods (401) are fixedly installed on the rotating trolley (302) and the traveling wave trolley (303), and the position control rod (401) on the left is inserted into the control circular hole (1022); there are two limiting cylinders (402), and the two limiting cylinders (402) are fixedly installed on the two position control rods (401), and the limiting cylinder (402) on the left is in contact with the moving trolley (102); there are four movable stabilizing heads (403), and the four movable stabilizing heads (403) are slidably installed on the two position control rods (401), and the two movable stabilizing heads (403) on the left are in contact with the moving trolley (102).

8. The refining furnace side electromagnetic stirring device according to claim 7, characterized in that, The position control unit (400) further includes: a support spring b (404), a detection switch a (405), and a detection switch b (406); there are two support springs b (404), and the two support springs b (404) are installed on the inner side of the four limiting cylinders (402); there are two detection switches a (405), and the two detection switches a (405) are fixedly installed on the two position control rods (401), and the detection switches a (405) are electrically connected to the electronic control unit (600); there are two detection switches b (406), and the two detection switches b (406) are fixedly installed on the two limiting cylinders (402); the two detection switches b (406) are electrically connected to the electronic control unit (600), and the detection switch b (406) on the left is in a pressed state.

9. The refining furnace side electromagnetic stirring device according to claim 6, characterized in that, The multi-functional cooling unit (500) includes: a water-cooled assembly (501), water-cooled pipes (502), an air-cooled assembly (503), an air duct (504), and an air diffuser (505); the water-cooled assembly (501) is installed on the ground and is electrically connected to the electrical control unit (600); the water-cooled pipes (502) are provided in two sets, one set of water-cooled pipes (502) is installed on the water-cooled assembly (501) and the rotary electromagnetic stirrer (304), and the other set of water-cooled pipes (502) is installed on the water-cooled assembly (501) and the row The electromagnetic stirrer (305) is provided with two air-cooling components (503), and the two air-cooling components (503) are fixedly installed on the rotary trolley (302) and the traveling wave trolley (303), and the two air-cooling components (503) are electrically connected to the electrical control unit (600); the air duct (504) is provided with two, and the inner ends of the two air ducts (504) are fixedly installed on the two air-cooling components (503); the air diffuser (505) is provided with two, and the two air diffusers (505) are fixedly installed on the outer ends of the two air ducts (504).

10. A method for electromagnetic stirring on the furnace side of a refining furnace, using the electromagnetic stirring device for the furnace side of a refining furnace as described in claim 9, characterized in that, The steps are as follows: 1) The moving trolley (102) is controlled by the electronic control unit (600) to move the refining furnace ladle (103) to the position to be stirred; 2) The rotary carriage (302) and the traveling wave carriage (303) are moved by the electronic control unit (600); 3) Start the water-cooled assembly (501) and the two sets of air-cooled assemblies (503) through the electronic control unit (600); 4) When the rotary electromagnetic stirrer (304) approaches the ladle (103) of the refining furnace, the electrical control unit (600) supplies excitation current to the rotary electromagnetic stirrer (304); the traveling wave electromagnetic stirrer (305) generates a rotating magnetic field to rotate and flow the molten steel in the ladle (103) of the refining furnace. 5) When the traveling wave electromagnetic stirrer (305) approaches the ladle (103) of the refining furnace, the electronic control unit (600) sends an excitation current to the traveling wave electromagnetic stirrer (305); the traveling wave electromagnetic stirrer (305) generates a traveling wave magnetic field to push the molten steel in the ladle (103) of the refining furnace from bottom to top. 6) When the rotary electromagnetic stirrer (304) and the traveling wave electromagnetic stirrer (305) approach the ladle (103) of the refining furnace at the same time, the electronic control unit (600) simultaneously supplies excitation current to the rotary electromagnetic stirrer (304) and the traveling wave electromagnetic stirrer (305); the rotary electromagnetic stirrer (304) and the traveling wave electromagnetic stirrer (305) generate a spiral magnetic field that causes the molten steel in the ladle (103) of the refining furnace to flow upward in a spiral. 7) Wait for the molten steel in the ladle (103) of the refining furnace to be stirred.

Images