CN113310326A - Variable power electromagnetic stirring system - Google Patents
Variable power electromagnetic stirring system Download PDFInfo
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- CN113310326A CN113310326A CN202110248898.4A CN202110248898A CN113310326A CN 113310326 A CN113310326 A CN 113310326A CN 202110248898 A CN202110248898 A CN 202110248898A CN 113310326 A CN113310326 A CN 113310326A
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- 238000003756 stirring Methods 0.000 title claims abstract description 55
- 238000003723 Smelting Methods 0.000 claims abstract description 43
- 230000005284 excitation Effects 0.000 claims abstract description 31
- 238000005303 weighing Methods 0.000 claims abstract description 28
- 238000002844 melting Methods 0.000 claims abstract description 26
- 230000008018 melting Effects 0.000 claims abstract description 26
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims description 49
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 45
- 238000001514 detection method Methods 0.000 claims description 32
- 230000001105 regulatory effect Effects 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 39
- 229910052782 aluminium Inorganic materials 0.000 abstract description 39
- 230000000694 effects Effects 0.000 abstract description 8
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 7
- 238000005266 casting Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000033228 biological regulation Effects 0.000 description 4
- 239000002699 waste material Substances 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D27/00—Stirring devices for molten material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/45—Magnetic mixers; Mixers with magnetically driven stirrers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/45—Magnetic mixers; Mixers with magnetically driven stirrers
- B01F33/453—Magnetic mixers; Mixers with magnetically driven stirrers using supported or suspended stirring elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/45—Magnetic mixers; Mixers with magnetically driven stirrers
- B01F33/453—Magnetic mixers; Mixers with magnetically driven stirrers using supported or suspended stirring elements
- B01F33/4533—Magnetic mixers; Mixers with magnetically driven stirrers using supported or suspended stirring elements supporting the stirring element in one point
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/50—Movable or transportable mixing devices or plants
- B01F33/501—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/90—Heating or cooling systems
- B01F35/91—Heating or cooling systems using gas or liquid injected into the material, e.g. using liquefied carbon dioxide or steam
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D2/00—Arrangement of indicating or measuring devices, e.g. for temperature or viscosity of the fused mass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/90—Heating or cooling systems
- B01F2035/98—Cooling
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The invention discloses a variable power electromagnetic stirring system, which belongs to the technical field of electromagnetic stirring devices and comprises: the smelting furnace is provided with a weighing sensor at the bottom; the electromagnetic stirrer is arranged below the smelting furnace; the electromagnetic stirrer comprises an iron core and an excitation coil sleeved on the iron core, and the excitation coil is connected with a current adjusting assembly; the moving assembly drives the electromagnetic stirrer to move; the controller is respectively connected with the weighing sensor, the current adjusting assembly and the moving assembly; the invention can measure the quality of the molten aluminum in the melting furnace in real time by using the weighing sensor at the bottom of the melting furnace, and can adjust the power of the electromagnetic stirrer according to the quality of the molten aluminum in the melting furnace by using the controller, so that the optimal matching state between the stirring force of the electromagnetic stirrer and the quality of the molten aluminum in the melting furnace is automatically achieved, the energy consumption is effectively reduced, the stirring effect of the molten aluminum is improved, and the automation degree is improved.
Description
Technical Field
The invention relates to the technical field of electromagnetic stirring devices, in particular to a variable-power electromagnetic stirring system.
Background
In general, when the electromagnetic stirrer is used for stirring, no matter how much molten aluminum is in the smelting furnace, the upper limit high-power stirring is adopted, and the energy consumption is higher. Although part of the electromagnetic stirrers can adjust the power according to the amount of the molten aluminum, special workers are required to frequently adjust the power parameters of the electromagnetic stirrers in an original pre-estimated mode, the working efficiency is extremely low, manpower is wasted, and accurate automatic adjustment cannot be realized, so that the optimal matching state of the quality of the molten aluminum and the stirring strength of the electromagnetic stirrers just is difficult to achieve.
Along with the south movement of north aluminum, hydroelectric aluminum projects continuously fall to the ground, and the centralized electrolytic aluminum industry is clustered, so that aluminum casting enterprises are clearer and clearer in an electromagnetic stirring mode.
The peripheral founding enterprises of the electrolytic aluminum enterprise can directly purchase molten aluminum, and the mixer is used for mixing the alloy components evenly to eliminate the temperature difference. For a machine with multiple furnaces (one electromagnetic stirrer stirs multiple smelting furnaces), the electromagnetic stirrer can only set stirring parameters according to the upper limit because of different capacities of the smelting furnaces or different quality of aluminum water in the smelting furnaces, and when the smelting furnaces with small capacities are used for stirring, excessive power stirring exists, so that electric energy waste is caused. Meanwhile, in the process of leveling alloy components and eliminating temperature difference, the surface oxide film should not be damaged, however, the inconsistency of the attributes (such as maximum capacity, quality of molten aluminum in the melting furnace and the like) of the melting furnaces is objective, the stirring of the stirrer on each furnace cannot be in an optimal state, and the parameters of the electromagnetic stirrer are generally set by taking the melting furnace with the maximum capacity as a reference, so that the oxide film is broken due to overlarge stirring force when the furnace is stirred on a small-tonnage and small-mass melting furnace, the burning loss is serious, a large amount of oxide slag is generated, and the resource waste is caused.
For the casting enterprises far away from the electrolytic aluminum enterprises, the direct purchase of molten aluminum casting has no advantages, most of the enterprises adopt partial molten aluminum to be added with aluminum ingots or scrap aluminum for remelting, and the stirring time is long, so that the first requirement of the smelting is to adopt a stirrer to improve the melting speed and shorten the melting time. Even if the properties of the smelting furnaces are consistent, the existing electromagnetic stirrer cannot automatically adjust power according to the change of the quality of molten aluminum of each smelting furnace and cannot perform timely and accurate stirring due to different charging time and quality. The disadvantage of high power consumption of the upper limit high-power stirring is shown due to the long stirring time. Furthermore, for a casting enterprise which can use the non-electrolytic aluminum water and needs to completely adopt aluminum ingot remelting or waste aluminum remelting and double-chamber furnace cold material continuous stirring, the stirring time is longer, and if the stirring power of the electromagnetic stirrer cannot be fully automatically adjusted, the problem of high energy consumption is more prominent.
In summary, in order to improve the stirring process in the casting process, accurate stirring of the electromagnetic stirrer for each melting furnace with different attributes is realized, energy consumption is reduced, and the automation degree is improved, which is a problem to be solved urgently in the present stage.
Disclosure of Invention
For the problems in the prior art, the variable-power electromagnetic stirring system provided by the invention is applied to stirring in the aluminum casting process, can realize accurate stirring of an electromagnetic stirrer for each smelting furnace with different attributes, saves energy, reduces consumption and improves the automation degree.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the invention provides a variable power electromagnetic stirring system, which comprises:
the bottom of the smelting furnace is provided with a weighing sensor;
the electromagnetic stirrer is arranged below the smelting furnace; the electromagnetic stirrer comprises an iron core and an excitation coil sleeved on the iron core, and the excitation coil is connected with a current adjusting assembly;
the moving component drives the electromagnetic stirrer to move;
and the controller is respectively connected with the weighing sensor, the current regulating assembly and the moving assembly.
As a preferred technical solution, the magnetic field generator further comprises a cooling assembly for reducing the temperature of the excitation coil; the cooling assembly is connected with the controller.
As a preferred technical scheme, the cooling assembly comprises a water cooling assembly and/or an air cooling assembly; the water cooling assembly comprises a water cooler, and the water cooler is provided with a water inlet and a water outlet; the excitation coil is a hollow conducting wire, and two ends of the excitation coil are respectively communicated with the water inlet and the water outlet; the air cooling assembly comprises a fan, and the fan is arranged on one side of the magnet exciting coil.
As a preferred technical scheme, the fan is provided with an air outlet, the air outlet is connected with an air pipe, the air pipe is connected with a fan cover, and the fan cover is sleeved on the exciting coil.
As a preferable technical solution, a temperature detection assembly is disposed at the excitation coil, and the temperature detection assembly is connected with the controller.
As a preferred technical solution, the moving assembly comprises a lifting assembly and a walking assembly; the lifting assembly is connected with the electromagnetic stirrer and drives the electromagnetic stirrer to move in the vertical direction; the walking assembly is connected with the lifting assembly, and the walking assembly drives the lifting assembly to move in the horizontal direction.
As a preferable technical solution, the electromagnetic stirrer is disposed above the lifting assembly, the lifting assembly is a lifter, the traveling assembly is disposed below the lifter, and the traveling assembly includes a supporting wheel shaft supporting the lifter and a driving motor driving the supporting wheel shaft to rotate.
As a preferred technical scheme, the walking assembly drives the lifting assembly to move between a first position and a second position; when the lifting assembly is in the second position, the lifting assembly is located directly below the furnace; when the lifting assembly is located at the second position, the lifting assembly drives the electromagnetic stirrer to move between the second position and the third position; when the electromagnetic stirrer is in the third position, the electromagnetic stirrer is proximate to the furnace; the first position is provided with a first position detection assembly, the second position is provided with a second position detection assembly, the third position is provided with a third position detection assembly, and the first position detection assembly, the second position detection assembly and the third position detection assembly are all connected with the controller.
As a preferred technical scheme, a bearing tray for supporting the smelting furnace is arranged at the bottom of the smelting furnace, a bearing embedded part for supporting the bearing tray is arranged at the bottom of the bearing tray, and the weighing sensor is arranged between the bearing tray and the bearing embedded part; and/or the load-bearing tray is provided with a window for the electromagnetic stirrer to pass through; and/or the weighing sensors are not less than three, and the weighing sensors are uniformly distributed along the circumferential direction of the smelting furnace.
As a preferable technical solution, the controller is connected with an input/output device.
The beneficial effects of the invention are as follows:
1. the invention can measure the quality of the molten aluminum in the melting furnace in real time by using the weighing sensor at the bottom of the melting furnace, can adjust the power of the electromagnetic stirrer according to the quality of the molten aluminum in the melting furnace by using the controller, automatically enables the stirring force of the electromagnetic stirrer and the quality of the molten aluminum in the melting furnace to reach the optimal matching state, can effectively reduce energy consumption, improve the stirring effect of the molten aluminum and improve the automation degree.
2. The invention can drive the electromagnetic stirrer to move among a plurality of smelting furnaces by utilizing the moving component, so that one electromagnetic stirrer can stir a plurality of smelting furnaces, and one machine with a plurality of furnaces is realized.
3. The cooling assembly can be used for effectively cooling the excitation coil of the electromagnetic stirrer and keeping the electromagnetic stirrer to normally operate.
Drawings
FIG. 1 is a schematic overall structure diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural view of the cooling module being a water cooling module;
FIG. 3 is a schematic cooling diagram of the water cooling assembly of FIG. 2;
FIG. 4 is a schematic structural view of the cooling module being an air cooling module;
FIG. 5 is a schematic view of the cooling of the air-cooled assembly of FIG. 3;
FIG. 6 is a schematic view of the lifting assembly of FIG. 1;
FIG. 7 is a schematic view of the position of the load cell of FIG. 1.
In the figure: 1-smelting furnace, 11-weighing sensor, 12-bearing tray, 13-bearing embedded part, 2-electromagnetic stirrer, 21-iron core, 22-magnet exciting coil, 3-moving component, 31-lifting component, 32-walking component, 321-supporting wheel shaft, 322-driving motor, 41-water cooling component, 42-air cooling component, 51-first position, 52-second position and 53-third position.
Detailed Description
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1 to 7, the present invention provides a variable power electromagnetic stirring system, including: the smelting furnace 1, the bottom of the smelting furnace 1 is provided with a weighing sensor 11, and the weighing sensor 11 can measure the total weight of the smelting furnace 1 pressed above the weighing sensor, aluminum in the smelting furnace 1 and other components; the electromagnetic stirrer 2 is arranged below the smelting furnace 1; the electromagnetic stirrer 2 comprises an iron core 21 and an excitation coil 22 sleeved on the iron core 21, the excitation coil 22 is connected with a current adjusting assembly, and the current adjusting assembly can adjust the current flowing through the excitation coil 22, so that the power of the electromagnetic stirrer 2 can be adjusted; the moving assembly 3 drives the electromagnetic stirrer 2 to move, and the moving assembly 3 can drive the electromagnetic stirrer 2 to move, so that the electromagnetic stirrer 2 can be positioned below different smelting furnaces 1, and one machine with multiple furnaces is realized; the controller, the controller is connected with weighing sensor 11, current regulation subassembly and removal subassembly 3 respectively, weighing sensor 11 can send the weight information of measurement to the controller, the controller can adjust the power of electromagnetic agitator 2 through the current regulation subassembly according to this weight information, simultaneously, the controller can drive electromagnetic agitator 2 through control removal subassembly 3 and move, makes electromagnetic agitator 2 be located the below of different smelting furnaces 1 and close to smelting furnace 1 bottom, realizes the stirring to different smelting furnaces 1.
It should be noted that the power of the load cell 11 should be proportional to the mass of aluminium in the furnace 1; specifically, the magnitude of the increase and decrease of the aluminum water can be set between 100 kilograms and 1000 kilograms according to the process requirements; furthermore, the electromagnetic stirring power can be set according to the percentage of the increased and decreased weight of the molten aluminum in the smelting furnace 1 to the weight of the molten aluminum in the whole furnace; in actual use, the number of the melting furnace 1 may be plural, and the number of the electromagnetic stirrers 2 may be one or plural; meanwhile, in order to ensure the stable operation of the electromagnetic stirrer 2, the present invention may further include a cooling assembly for reducing the temperature of the excitation coil 22, the cooling assembly being connected to a controller, the controller being capable of controlling the cooling effect of the cooling assembly on the excitation coil 22; the current regulation component may be a current regulator; the controller may be a PLC.
Further, referring to fig. 2 and 3, the cooling assembly may be a water cooling assembly 41, the water cooling assembly 41 includes a water cooler, the water cooler has a water inlet and a water outlet, at this time, the excitation coil 22 should be a hollow wire, and two ends of the excitation coil 22 are respectively communicated with the water inlet and the water outlet through a pipeline, so that a closed water circulation cooling pipeline is formed between the water cooler and the excitation coil 22; specifically, the water cooler includes a water pump, the water pump is disposed on the water circulation cooling pipeline, and the controller can control the flow rate of the cooling water in the water circulation cooling pipeline by controlling the power of the water pump, so as to control the cooling effect on the excitation coil 22; furthermore, at least part of the pipeline between the excitation coil 22 and the water inlet and the water outlet is a rubber hose or a rubber steel wire hose, and a certain length is reserved to ensure that the pipeline does not hinder the movement of the electromagnetic stirrer 2; in addition, because the water cooler is usually large in size, the water cooler body can be arranged separately from the water cooler.
In another embodiment, referring to fig. 4 and 5, the cooling assembly may be an air cooling assembly 42, the air cooling assembly 42 includes a fan disposed at one side of the exciting coil 22, the exciting coil 22 is cooled by cooling air blown from the fan, and the controller controls the power of the fan to control the speed of the cooling air blown to the exciting coil 22, so as to control the cooling effect on the exciting coil 22; preferably, the fan may have an air outlet connected to an air pipe connected to a fan housing, and the fan housing is fitted over the excitation coil 22 to improve the cooling effect.
In practical use, the cooling assembly may also include the water cooling assembly 41 and the air cooling assembly 42, so as to further improve the cooling effect on the excitation coil 22; meanwhile, a temperature detection assembly is preferably arranged at the excitation coil 22 and connected with the controller, the temperature detection assembly is used for detecting the temperature of the excitation coil 22, the temperature detection assembly can send the temperature information of the excitation coil 22 to the controller in real time, and the controller can adjust the power of the cooling assembly according to the temperature information to ensure that the excitation coil 22 normally operates within a proper temperature range; specifically, the temperature detection component may be a temperature sensor.
In this embodiment, referring to fig. 6, the moving assembly 3 may include a lifting assembly 31 and a walking assembly 32; the lifting assembly 31 is connected with the electromagnetic stirrer 2, and the lifting assembly 31 drives the electromagnetic stirrer 2 to move in the vertical direction, so that the electromagnetic stirrer 2 is close to or far away from the bottom of the smelting furnace 1; the walking assembly 32 is connected with the lifting assembly 31, and the walking assembly 32 drives the lifting assembly 31 to move in the horizontal direction, so that the electromagnetic stirrer 2 can be driven to move from the lower part of one melting furnace 1 to the lower part of the other melting furnace 1.
On the basis of the above embodiment, referring to fig. 6, the electromagnetic stirrer 2 is disposed above the lifting assembly 31, and the lifting assembly 31 may be a lifter, and drives the electromagnetic stirrer 2 to move in the vertical direction; specifically, the lifter can be a bevel gear lifter, a transmission shaft of the bevel gear lifter is connected with a speed reducing motor, and the controller is connected with the speed reducing motor, so that the lifting of the lifter can be realized; the walking assembly 32 is arranged below the elevator, the walking assembly 32 can comprise a supporting wheel shaft 321 for supporting the elevator and a driving motor 322 for driving the supporting wheel shaft 321 to rotate, specifically, a bracket can be arranged on the supporting wheel shaft 321, the lifting assembly 31 is arranged on the bracket, a track for the supporting wheel shaft 321 to roll can be arranged below the supporting wheel shaft 321, transmission is realized between the driving motor 322 and the supporting wheel shaft 321 through a chain, and therefore the driving supporting wheel shaft 321 rotates to drive the lifting assembly 31 to move in the horizontal direction.
In practical use, referring to fig. 1, the walking assembly 32 drives the lifting assembly 31 to move between a first position 51 and a second position 52; in the second position 52, the lifting assembly 31 is located directly below the furnace 1; when the lifting assembly 31 is in the second position 52, the lifting assembly 31 can drive the electromagnetic stirrer 2 to move between the second position 52 and the third position 53; in the third position 53, the electromagnetic stirrer 2 is close to the melting furnace 1, and can stir the molten aluminum in the melting furnace 1; further, a first position detection assembly is arranged at the first position 51, a second position detection assembly is arranged at the second position 52, a third position detection assembly is arranged at the third position 53, the first position detection assembly, the second position detection assembly and the third position detection assembly are all connected with the controller, and the controller can judge the position of the electromagnetic stirrer 2 through the first position detection assembly, the second position detection assembly and the third position detection assembly; specifically, the first position detection assembly, the second position detection assembly and the third position detection assembly can be set as position sensors or limit switches; preferably, when the electromagnetic stirrer 2 moves between the second position 52 and the third position 53, the electromagnetic stirrer 2 should be located on the central axis of the melting furnace 1, and in a special case, the electromagnetic stirrer 2 may be offset according to the process requirements, but the offset should not exceed half of the hearth radius of the melting furnace 1, so as to ensure the stirring effect of the electromagnetic stirrer 2.
In this embodiment, referring to fig. 7, a bearing tray 12 for supporting the melting furnace 1 may be disposed at the bottom of the melting furnace 1, a bearing embedded part 13 for supporting the bearing tray 12 is disposed at the bottom of the bearing tray 12, and the weighing sensor 11 is disposed between the bearing tray 12 and the bearing embedded part 13, so as to facilitate the placement of the weighing sensor 11 and ensure the placement stability and the detection accuracy of the weighing sensor 11; the bearing tray 12 is provided with a window for the electromagnetic stirrer 2 to pass through, so that the electromagnetic stirrer 2 can pass through the window to be close to the smelting furnace 1; preferably, the number of the weighing sensors 11 is not less than three, and the weighing sensors 11 are uniformly distributed along the circumferential direction of the smelting furnace 1, so that the accuracy of detecting the weight of the smelting furnace 1 and the molten aluminum in the smelting furnace can be ensured.
It should be noted that, in actual use, the controller is preferably connected with an input/output device, the controller can display the received detection information through the input/output device, and the operator can input preset control parameters to the controller through the input/output device; preferably, the input/output device is a touch panel.
The method comprises the following specific operation steps:
firstly, the initial position of the electromagnetic stirrer 2 is a first position 51, and the controller controls the walking assembly 32 to drive the electromagnetic stirrer 2 to move from the first position 51 to a second position 52, wherein the electromagnetic stirrer 2 is positioned right below the smelting furnace 1 to be stirred;
second, at the second position 52, the controller controls the lifting assembly 31 to drive the electromagnetic stirrer 2 to ascend, and move from the second position 52 to the third position 53, at which the electromagnetic stirrer 2 is close to the bottom of the furnace 1;
thirdly, the controller receives the weighing information of the weighing sensor 11 and sets the current flowing through the current adjusting assembly according to the weighing sensor 11 so that the power of the electromagnetic stirrer 2 is matched with the mass of the molten aluminum in the smelting furnace 1;
fourth, after the stirring is completed, the electromagnetic stirrer 2 descends, moves from the third position 53 to the second position 52, and returns from the second position 52 to the first position 51, thereby completing the resetting.
It should be noted that, when the electromagnetic stirrer 2 is in operation, the controller should also control the power of the cooling assembly so that the exciting coil 22 of the electromagnetic stirrer 2 is within the proper temperature range, thereby ensuring the normal operation of the electromagnetic stirrer 2.
The invention effectively solves the problem that the traditional electromagnetic stirrer 2 can not automatically adjust the stirring power on a single smelting furnace 1 along with the quality change of the molten aluminum in the smelting furnace 1; the problem that the stirring power of a traditional electromagnetic stirrer 2 cannot be automatically adjusted along with the quality difference of the aluminum water of each smelting furnace 1 on a plurality of smelting furnaces 1 is solved; moreover, the problem of low automation degree of the traditional electromagnetic stirrer 2 is solved; the full-automatic variable-power stirring control method provided by the invention meets the process requirements of automatic regulation and control and accurate stirring, achieves the purposes of energy conservation and consumption reduction, is reasonable in design, and fills the blank of electromagnetic stirring equipment.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A variable power electromagnetic stirring system, comprising:
the bottom of the smelting furnace is provided with a weighing sensor;
the electromagnetic stirrer is arranged below the smelting furnace; the electromagnetic stirrer comprises an iron core and an excitation coil sleeved on the iron core, and the excitation coil is connected with a current adjusting assembly;
the moving component drives the electromagnetic stirrer to move;
and the controller is respectively connected with the weighing sensor, the current regulating assembly and the moving assembly.
2. The variable power electromagnetic stirring system of claim 1 further comprising a cooling assembly for reducing the temperature of the excitation coil; the cooling assembly is connected with the controller.
3. The variable power electromagnetic stirring system of claim 2, wherein the cooling assembly comprises a water cooling assembly and/or an air cooling assembly; the water cooling assembly comprises a water cooler, and the water cooler is provided with a water inlet and a water outlet; the excitation coil is a hollow conducting wire, and two ends of the excitation coil are respectively communicated with the water inlet and the water outlet; the air cooling assembly comprises a fan, and the fan is arranged on one side of the magnet exciting coil.
4. The variable power electromagnetic stirring system of claim 3 wherein the fan has an air outlet, the air outlet is connected to an air hose, the air hose is connected to a fan housing, and the fan housing is fitted over the field coil.
5. The variable power electromagnetic stirring system of claim 3, wherein a temperature sensing assembly is disposed at the excitation coil, and the temperature sensing assembly is connected to the controller.
6. The variable power electromagnetic stirring system of claim 1 wherein the moving assembly comprises a lifting assembly and a walking assembly; the lifting assembly is connected with the electromagnetic stirrer and drives the electromagnetic stirrer to move in the vertical direction; the walking assembly is connected with the lifting assembly, and the walking assembly drives the lifting assembly to move in the horizontal direction.
7. The variable power electromagnetic stirring system of claim 6 wherein the electromagnetic stirrer is disposed above the lifting assembly, the lifting assembly being configured as a lifter; the walking assembly is arranged below the lifter and comprises a supporting wheel shaft for supporting the lifter and a driving motor for driving the supporting wheel shaft to rotate.
8. The variable power electromagnetic stirring system of claim 6 or 7, wherein the traveling assembly moves the lifting assembly between a first position and a second position; when the lifting assembly is in the second position, the lifting assembly is located directly below the furnace; when the lifting assembly is located at the second position, the lifting assembly drives the electromagnetic stirrer to move between the second position and the third position; when the electromagnetic stirrer is in the third position, the electromagnetic stirrer is proximate to the furnace; the first position is provided with a first position detection assembly, the second position is provided with a second position detection assembly, the third position is provided with a third position detection assembly, and the first position detection assembly, the second position detection assembly and the third position detection assembly are all connected with the controller.
9. The variable power electromagnetic stirring system of claim 1, wherein the bottom of the melting furnace is provided with a bearing tray for supporting the melting furnace, the bottom of the bearing tray is provided with a bearing embedded part for supporting the bearing tray, and the weighing sensor is arranged between the bearing tray and the bearing embedded part; and/or the load-bearing tray is provided with a window for the electromagnetic stirrer to pass through; and/or the number of the weighing sensors is not less than three, and the weighing sensors are uniformly distributed along the circumferential direction of the smelting furnace.
10. The variable power electromagnetic stirring system of claim 1 wherein the controller is connected to an input and output device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110248898.4A CN113310326A (en) | 2021-03-06 | 2021-03-06 | Variable power electromagnetic stirring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110248898.4A CN113310326A (en) | 2021-03-06 | 2021-03-06 | Variable power electromagnetic stirring system |
Publications (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117367165A (en) * | 2022-07-02 | 2024-01-09 | 山东金马汽车装备科技有限公司 | Alloy stove aluminium water electromagnetic stirring device |
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| DE2420010A1 (en) * | 1973-04-27 | 1974-11-21 | Centre Rech Metallurgique | PROCEDURE FOR MONITORING THE COOKING PROCESS OF STEEL |
| CA2734217A1 (en) * | 2010-06-18 | 2011-12-18 | Heraeus Electro-Nite International N.V. | Measuring probes for measuring and taking samples with a metal melt |
| CN202547428U (en) * | 2012-05-16 | 2012-11-21 | 岳阳远东节能设备有限公司 | Direct-current electromagnetic stirrer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117367165A (en) * | 2022-07-02 | 2024-01-09 | 山东金马汽车装备科技有限公司 | Alloy stove aluminium water electromagnetic stirring device |
| CN117367165B (en) * | 2022-07-02 | 2024-04-16 | 山东金马汽车装备科技有限公司 | Alloy stove aluminium water electromagnetic stirring device |
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Application publication date: 20210827 |