KR100665231B1 - Melt metal transfer equipment using linear induction motor - Google Patents

Abstract

The present invention relates to a molten metal transfer device using a linear induction motor, the object of the pursuit is to ensure that the molten metal discharged from the furnace to constant temperature on the transfer path, thereby preventing the molten metal from solidifying the transfer path By using the linear induction motor to prevent damage to the stator coils from the heat of the molten metal being transported, by controlling the distance between the duct and the stator coil of the linear-induction motor (LIM) To provide a molten metal transfer device.

The present invention for achieving the above object is a melting furnace for melting the injected metal at a predetermined temperature; One end is connected to the outlet of the above-described melting furnace, the other end is provided with a discharge port, the duct for providing a transport path of molten metal discharged from the furnace; In the molten metal transfer device provided in the outside of the duct, a linear induction motor consisting of a linear induction motor for forming a magnetic field in accordance with the current supplied to the stator coil to transfer the molten metal to the discharge port by the magnetic force, A duct connecting means connecting one side of the outlet and the duct of the melting furnace to maintain a temperature of the molten metal transferred through the heat generation; And wrapped around the outside of the above-mentioned duct, the insulation on one side of the duct is thinner than the other side to insulate, heat insulation / heat insulation means to maintain a predetermined temperature inside the duct; One side is connected to a predetermined position of the body frame to protect the above-mentioned melting furnace, the other side is connected to a predetermined position of the insulation / insulation means surrounding the duct described above, the height of the duct wrapped in the above insulation / insulation means while operating the crane Duct height adjusting means for adjusting the; A linear induction motor is provided on one side of the thin side of the insulation / heat insulation means surrounding the duct at a predetermined interval, and forms a magnetic field according to the current flowing through the stator coil to transfer molten metal in the duct from one side to the other. ; Linear induction motor support means for supporting one side of the above-described linear induction motor and adjusting an interval and an angle with the adiabatic / insulating means described above; And control means for adjusting the temperature of each of the aforementioned means according to the signal input from the temperature of the melting furnace and the temperature sensor for sensing the temperature of the duct connecting means and the duct portion.

Description

Melt metal transfer equipment using linear induction motor

1 is a front view showing the configuration of the present invention.

Figure 2 is a partial front cross-sectional view showing the configuration of the present invention.

3 a) to c) is a front sectional view showing a height adjustment state of the present invention.

     <Description of Signs of Major Parts of Drawings>

10: duct connecting means 11: bellows

12: Heater 1 13: Temperature sensor 1

14: blocking plate 20: heat insulation / insulation

21: insulator 22: heater 2

23: temperature sensor 2 30: duct height adjusting means

31: fixing bracket 32: operation bar

33: duct height adjustment handle 34: connection piece

35: duct angle adjustment handle 36: fixed body

37: connecting bracket 40: linear induction motor height adjusting means

41: height adjustment 42: shaft

43: support plate 50: control means

1: melting furnace 2: outlet

3: duct 4: discharge port

5: linear induction motor

The present invention relates to a molten metal transfer device using a linear induction motor, and more particularly to a molten metal transfer device using a linear induction motor for transferring the molten metal discharged from the melting furnace to a predetermined position through the formation and magnetic force of the magnetic field. will be.

In general, the continuous casting method includes a continuous casting process in which molten steel is poured into a mold having a certain shape and solidified, and a continuous casting process in which molten steel is poured into one side of the mold while drawing the solidified product on the other side thereof. have.

The continuous casting process may be roughly classified into slab continuous casting process, bloom continuous casting process, and billet continuous casting process according to the produced product.

Since the product produced through this continuous casting process is so thick that the product after the rolling process in the post-process can be made to the desired product.

However, since the continuous casting process and the rolling process are different processes, the products produced in the continuous casting process are transferred to the rolling process, and the products cooled in the transfer process are heated to a temperature that can be rolled by reheating in a heating furnace. There have been disadvantages in that many economic losses, such as post-rolling, add a lot of burden to the cost of the product.

In consideration of this problem, as shown in FIG. 1, the mold 10 is placed at the bottom of the deposition nozzle 5 instead of the roll 6, and an electromagnetic force is generated in the molten steel outside of the mold 10. A linear motor electromagnetic pump 12 for contacting or non-contacting with the inner wall of the mold 10 and the solidification cell of the solidified molten steel in the mold 10, and the linear motor electromagnetic pump 12. On both sides of the lower part of the continuous casting apparatus using a linear motor-type electromagnetic pump configured to produce a strip (7) by installing a draw roll (13) acting as a roll (6).

For reference, a linear motor-type electromagnetic pump (linear-induction motor) is a form in which the rotary induction motor is cut in the center axis direction and extended. The primary side is composed of a molten metal tube made of non-magnetic stainless steel, and the secondary side is It consists of a magnetic body and an excitation coil in the slot.

Here, the thrust is generated by the generation of the Lorentz force due to the interaction between the moving magnetic field generated by the current flowing in the secondary side and the eddy current induced in the primary molten metal.

However, such an improved prior art has a problem that the molten metal is not maintained at a constant temperature in the process of being transported through the mold 10 and cooled to solidify on the inner surface of the mold 10, thereby preventing smooth transportation. , The excitation coil of the linear motor-type electromagnetic pump 12 is damaged by high temperature molten metal, that is, when the excitation coil is heated to 130 ° C. or more, for example, there is a problem in that it will not function due to damage.

In particular, in the case of melting and transporting metals having different melting points, there is a problem that the above-described problems are further exacerbated.

That is, the melting temperature of tin is about 505 ° C and zinc is about 692.5 ° C. When molten zinc is transferred through the continuous casting apparatus using the conventional linear motor-type electromagnetic pump described above, the molten tin is transferred, The molten tin that is transported within the length of the mold 10 is solidified faster than the molten zinc, there is a problem that is deposited on the inner surface of the mold 10.

The present invention for solving the above problems is to ensure that the molten metal discharged from the melting furnace constant temperature on the transport path, thereby preventing the molten metal from solidifying the transport path, while the duct and the LIM (linear It is an object of the present invention to provide a molten metal transfer device using a linear induction motor that is capable of adjusting the distance between stator coils of a linear induction motor to prevent damage to the stator coils from the heat of the molten metal being transferred. .

The present invention for achieving the above object is a melting furnace for melting the injected metal at a predetermined temperature; One end is connected to the outlet of the above-described melting furnace, the other end is provided with a discharge port, the duct for providing a transport path of molten metal discharged from the furnace; In the molten metal transfer apparatus provided in the outside of the duct, a linear induction motor consisting of a linear induction motor to form a magnetic field in accordance with the current supplied to the stator coil to transfer the molten metal to the discharge port by magnetic force, Duct connection means for connecting the outlet of the above-mentioned melting furnace and one side of the duct, maintaining the temperature of the molten metal conveyed through the heat generation; And wrapped around the outside of the above-mentioned duct, the insulation on one side of the duct is thinner than the other side to insulate, heat insulation / heat insulation means to maintain a predetermined temperature inside the duct; One side is connected to a predetermined position of the body frame to protect the above-mentioned melting furnace, the other side is connected to a predetermined position of the insulation / insulation means surrounding the duct described above, while the crane operation while the height of the duct wrapped in the insulation / insulation means described above Duct height adjusting means for adjusting the; A linear induction motor is provided on one side of the thin side of the insulation / heat insulation means surrounding the duct at a predetermined interval, and forms a magnetic field according to the current flowing through the stator coil to transfer molten metal in the duct from one side to the other. ; Linear induction motor support means for supporting one side of the above-described linear induction motor and adjusting an interval and an angle with the adiabatic / insulating means described above; And control means for adjusting the temperature of each of the aforementioned means according to the signal input from the temperature of the melting furnace and the temperature sensor for sensing the temperature of the duct connecting means and the duct portion.

In the present invention as described above, since the molten metal discharged from the melting furnace is transported while maintaining a constant temperature in the duct, which is a transport path, the molten metal is prevented from solidifying in the duct, thereby enabling smooth transport of the molten metal.

In addition, since the distance between the duct and the stator coil of the linear induction motor is adjustable, it is possible to prevent damage to the stator coils from the heat of the molten metal to be transported, and to control the feeding speed.

In other words, when transferring tin with a relatively high melting temperature, the distance between the linear induction motor and the duct is relatively far away, and when transferring zinc with a relatively low melting temperature, the distance between the linear induction motor and the duct is relatively close. Thus, by adjusting the interval according to the heat transferred from the molten metal transferred in the duct to the linear induction motor, it is possible to prevent damage to the linear induction motor.

The above-mentioned duct connecting means of the present invention, for example, the bellows connecting the outlet of the melting furnace and the one side of the duct while the bending of the appearance is deformed according to the height and angle change of the duct; A heater 1 provided at the outer circumference of the bellows to prevent cooling of the molten metal transferred into the bellows while being heated by an external power source; A temperature sensor 1 which senses the temperature of the heater 1 and the temperature of the bellows and inputs it to the aforementioned control means; And it may be configured as a blocking plate to cover the outside of the heater 1 described above.

At this time, the above-described heater 1 may be installed at a predetermined interval with the outer periphery of the bellows.

In addition, the above-described temperature sensor 1 is fixed to a predetermined position of the blocking plate so that the sensing rod end may be installed on the inner space of the blocking plate or in contact with a predetermined position of the surface of the heater or bellows.

On the other hand, the above-mentioned heat insulation / thermal insulation means is, for example, the whole of both ends of the above-described duct, a heat insulator to insulate one side of the duct thinner than the other side; A heater 2 installed close to the duct in a relatively thick portion of the insulator formed around the above-described duct and generating heat by a power applied from the outside; And a temperature sensor 2 which senses the temperature of the heater 2 or the duct described above and inputs the same to the aforementioned control means.

Here, the above-described heat insulator may be, for example, ceramic, it is applicable to any other heat insulating material.

On the other hand, the above-described duct height adjustment means of the present invention, for example, is connected to a predetermined position of the main body frame for protecting the melting furnace, the fixing bracket for supporting the operation bar to be hinged to be described later; One end is hinged to the above-described fixing bracket, the other end is hinged to the connecting piece to be described later, provided with a horizontal spaced at a predetermined interval, the operating bar to rotate up and down about the hinge of the fixing bracket; A duct height adjusting handle which is screwed with the operation bar through the above-described fixing bracket, and fixes the operation bar to the fixing bracket by tightening and loosening operation; The hinge is coupled to the operation bar described above, and one end is hinged to the connection bracket of the fixed body fixed to the upper surface of the insulator, so that the angle of the aforementioned duct is adjusted around the hinge coupled to the connection bracket. ; And through the above connection piece is screwed with the above-described connection bracket, it may be composed of the duct angle adjustment handle for fixing the connection bracket to the connection piece by tightening and loosening operation.

On the other hand, the above-described linear induction motor support means of the present invention, for example, two or more upwardly provided at a predetermined interval from the upper surface of the support, the shaft for adjusting the height and angle by the operation of the height adjustment mechanism; And a support plate coupled to the shaft end described above and supporting the aforementioned linear induction motor.

Here, the above-described height adjusting device is tightened to maintain the adjusted length in the state in which the small diameter shaft is elevated along the large shaft shaft in the state in which the small diameter shaft is inserted into the large shaft shaft. It may be a bolt for fixing, or it may be a lever for adjusting the piston motion of the cylinder.

Finally, the control means described above in the present invention, for example, the heater 1 only when the signal input from the above-described temperature sensor 1, 2 and the operator is below a certain temperature compared with the temperature set in the west through the key button or switch operation. 2 is configured to include a function to operate.

Such a configurational embodiment will be described below with reference to the accompanying drawings.

First, the present invention is connected to one side of the duct 3 and the outlet 2 of the melting furnace 1, as shown in Figure 1 and 2 of the accompanying drawings, to maintain the temperature of the molten metal transported through the heat generation Duct connecting means (10); Insulating the outside of the duct (3) described above, one side surface of the duct (3) is thinner than the other side to insulate, the heat insulation / heat insulating means 20 to maintain the predetermined temperature inside the duct (3) and ; One side is connected to a predetermined position of the body frame (1 ') for protecting the above-mentioned melting furnace (1), the other side is connected to a predetermined position of the heat insulating / insulating means 20 surrounding the duct (3), crane operation And while the duct height adjusting means 30 for adjusting the height of the duct (3) wrapped in the above-described heat insulation / thermal insulation means 20; The thickness of the heat insulation / heat insulating means 20 surrounding the duct 3 described above is provided on one side of the thin film at predetermined intervals to form a magnetic field in accordance with the current flowing through the stator coils to form a molten metal in the duct 3. A linear induction motor 5 for transferring from one side to the other side; Linear induction motor support means 40 for supporting one side of the above-described linear induction motor 5 to adjust the distance and angle with the above-described heat insulation / heat insulation means 20; And control means 50 for adjusting the temperature of each of the aforementioned means according to the signal input from the temperature sensor for sensing the temperature of the melting furnace 1 and the temperature of the duct connecting means 10 and the duct 3. It consists of.

Here, the above-described duct connecting means 10 is a bellows connecting the outlet 2 of the above-described melting furnace 1 and one side of the duct 3 while the bending of the outer shape is deformed according to the height and angle change of the duct (3). (11); A heater 1 (12) provided at an outer circumference of the bellows 11 to prevent the molten metal from being cooled into the bellows 11 while being heated by an external power source; A temperature sensor 1 (13) which senses the temperature of the above-described heater 1 (12) and the temperature of the bellows (11) and inputs it to the aforementioned control means (50); And a blocking plate 14 which covers the outside of the heater 1 12 as described above and keeps warm.

At this time, the heater 1 (12) described above is provided at a predetermined interval from the outer periphery of the bellows (11).

In addition, the above-described temperature sensor 1 (13) is fixed to a predetermined position of the blocking plate 14, it is preferable that the sensing rod end is installed in the interior of the blocking plate 14, heater 1 (13) or bellows ( It is also preferable to be provided in contact with the surface predetermined position of 11).

On the other hand, the above-mentioned heat insulation / heat insulating means 20 is wrapped around the whole of both ends of the above-described duct (3), the heat insulating body 21 for wrapping one side of the duct (3) thinner than the other side and insulated; A heater 2 (22) installed near the duct (3) at a portion where the heat insulator (21) is formed relatively thick with respect to the aforementioned duct (3), and generating heat by a power applied from the outside; And a temperature sensor 2 23 which senses the temperature of the above-described heater 2 22 or the duct 3 and inputs it to the aforementioned control means 50.

At this time, it is preferable that the above-mentioned heat insulating body 21 is made of ceramic, but the thing of other heat insulating material is also applicable.

On the other hand, the above-described duct height adjusting means 30 is connected to a predetermined position of the main body frame (1 ') protecting the above-mentioned melting furnace 1, fixed to support the operation bar 32 to be described later hinge hinge A bracket 31; One end is hinged to the above-described fixing bracket 31, the other end is hinged to the connecting piece 34 to be described later, provided horizontally at a predetermined interval, up and down around the hinge of the fixing bracket 31 A rotating operating bar 32; A duct height adjusting handle 33 which is screwed with the operation bar 32 to penetrate the fixing bracket 31 and fixes the operation bar 32 to the fixing bracket 31 by tightening and releasing operation; The operation bar 32 is hinged to the above-mentioned one end, and the one end is hinged to the connection bracket 37 of the fixed body 36 fixed to the upper surface of the above-described heat insulator 21, and the connection bracket 37 A connection piece 34 to adjust the angle of the above-described duct 3 about the coupled hinge; And a duct angle adjustment handle 35 which is screwed with the aforementioned connection bracket 37 through the aforementioned connection piece 34 to fix the connection bracket 37 to the connection piece 34 by tightening and loosening operation. Can be.

On the other hand, the above-described linear induction motor support means 40 is provided with two or more upward at a predetermined distance from the upper surface of the support, the shaft 42 for adjusting the height and angle by the operation of the height adjustment (41) ; And a support plate 43 coupled to the end of the shaft 42 to support the linear induction motor 5 described above.

At this time, the distance between the linear induction motor 5 supported by the above-described linear induction motor support means 40 and the lower surface of the above-described heat insulation / thermal insulation means 20 is appropriate within about 5-30 mm, Therefore, it may be below or above the above-mentioned range.

This case is caused by the high and low degree of melting temperature of the molten metal.

In addition, the above-described height adjusting device 41 is in the state in which the shaft with the small diameter is inserted into the shaft with the large diameter, so that the length is adjusted as the shaft with the small diameter is elevated along the shaft with the large diameter, thereby adjusting the adjusted length. It may be a bolt for tightening to maintain it, or a lever for adjusting the piston motion of the cylinder.

In addition, the inclination angle of the linear induction motor 5 supported by the aforementioned linear induction motor support means 40 and the thermal insulation / heat insulation means 20 supported by the aforementioned duct height adjusting means 20 is 41.9 ° ±. 5 degrees is suitable and may be below or above the above-mentioned angle.

Finally, the above-described control means 50 is a certain temperature or less compared to the signal input from the above-described temperature sensor 1, 2 (13) 23 and the temperature preset by the operator through a key button or a switch operation. It is configured to include a function of operating the heaters 1 and 2 (12) and 22 only.

Next, before looking at the operation of the present invention according to an embodiment as described above will be added to the reference.

In the case of the present invention, it is the key to flow the molten metals having a high density by generating a magnetic field.

In general, computational fluid dynamics (CFD) is interpreted for materials with low density, and most of them have not been considered gravity.

However, in the present invention, the MHD problem is a material having a density of more than 6000 kg / m 3, so consideration of gravity is essential, and gravity is calculated by applying 9.8 kW.

At this time, when the height of the furnace, that is, the height of the solution surface at the inlet end is set to about 400MM, it is necessary to find a well where the solution hardly flows from the outlet side.

Theoretically, if the surface of the solution and the outlet position are the same, the solution will remain stationary, but in reality it is almost impossible to find the stopping point of the solution because of gravity considerations and the use of dense materials. It is desirable to find and calculate the point where the flow occurs.

At this time, the point where the minimum flow occurs is about 41.9 ㅀ of the angle of the ground and the duct is suitable, the present invention applied this angle as an embodiment.

At this angle, the transfer of molten metal by generating a magnetic field in the linear induction motor 5 is performed smoothly while minimizing backflow, rather than when the molten metal is transferred without using the magnetic field generated by the linear induction motor 5. You can.

Referring to the operation of the present invention as described above, first, as shown in Figure 3a of the accompanying drawings, the state in which the duct 3 is positioned at the above-described angle (in the accompanying drawings, the angle of 20 ° for ease of illustration). In the above, the power is applied to the above-described linear induction motor (5), the bellows (11) is molten metal discharged through the outlet of the above-described melting furnace 1 in the state in which the magnetic field is formed duct connecting means (10) When the lead is introduced into the duct 3, it is pushed toward the discharge port 4 and discharged by the action of the magnetic field formed as described above.

At this time, while the molten metal proceeds along the transfer path discharged to the discharge port 4 through the above-described duct connecting means 10 and the duct 3, the heat loss is generated to cool and solidify the duct connecting means 10 The heater 1 (12) included in and the heater 2 (22) of the heat insulation / heat insulating means 20 is prevented while generating heat.

At this time, the operation of the heaters 1 and 2 (12) and 22 described above receives the signal from the temperature sensors 1 and 2 (13 and 23) for sensing the temperature of each part, and the control means 50 receives the preset temperature. If the value is higher than the value, the power supplied to the heaters 1 and 2 (12) 22 is cut off, and if it is less than this, the power is supplied to the heaters 1 and 2 (12) 22 to operate.

In addition, the present invention can prevent the linear induction motor 5 is overheated and damaged by adjusting the distance between the duct (3) and the linear induction motor (5) according to the temperature of the molten metal to be transferred, which is attached to Figure 3 As shown in b).

That is, the shaft 42 is lowered (when the temperature of the molten metal is high) by operating the height adjusting port 41 of the above-described linear induction motor height adjusting means 40, thereby increasing the distance from the duct 3 from the high temperature. The linear induction motor 5 can be protected.

At this time, when adjusting only the height adjustment port 41 of one side, it is possible to adjust the angle of the linear induction motor (5).

In addition, the present invention can adjust the height of the duct, which is as shown in C) of the accompanying drawings.

In this case, as shown in b) of FIG. 3, when the height of the linear induction motor 5 is adjusted, the duct height adjusting handle 33 on the side of the fixed bracket 31 is operated (unwrapped). , The operation bar 32 is lowered by its own weight around the hinge of the fixing bracket 31, and tighten the duct height adjusting handle 33 at the desired position, the operation bar 32 stops.

When the operation bar 32 stops as described above, the insulation / heat insulating means 20 fixed to the fixed body 36 hinged to the connection piece 34 hinged to the other end of the operation bar 32 is lowered. .

However, at this time, since the front portion of the thermal insulation / heat insulating means 20 is lowered further inclined forward, the operation of the above-described duct angle control handle 35 of the fixed body 36 hinged to the connection piece 34 By allowing the connecting bracket 37 to be movable, the angle of the heat insulation / heat insulating means 20 is adjusted so as to be parallel to the linear induction motor 5 described above.

According to the present invention, the molten metal discharged from the melting furnace is transported while maintaining a constant temperature in the duct, which is the transport path, thereby preventing solidification in the duct, thereby enabling smooth transport of the molten metal, as well as the transport path. Since the distance between the inductor and the stator coil of the linear induction motor is adjustable, it is possible to prevent damage to the stator coils from the heat of the molten metal to be transported, and to obtain an effect of controlling the feeding speed.

Claims (13)

A duct connecting means 10 which connects the outlet 2 of the melting furnace 1 and one side of the duct 3 and maintains the temperature of the molten metal transferred through the heat generation; Wrap the outside of the duct (3), and insulate by wrapping one side of the duct (3) thinner than the other side, the heat insulation / heat insulating means 20 to heat the duct (3) to maintain a predetermined temperature and ; One side is connected to the body frame (1 ') to protect the melting furnace (1), the other side is connected to the heat insulating / insulating means 20 surrounding the duct (3), while operating the crane the heat insulating / insulating means (20) Duct height adjusting means 30 for adjusting the height of the duct (3) wrapped in; The thickness of the heat insulation / heat insulating means 20 surrounding the duct 3 is provided at intervals on a thin side, and forms a magnetic field in accordance with the current flowing through the stator coils to transfer the molten metal in the duct 3 from one side to the other side. A linear induction motor 5 for feeding; Linear induction motor support means (40) for controlling one side of the linear induction motor (5) and adjusting an interval and an angle with the thermal insulation / heating means (20); And control means 50 for adjusting the temperature of each means according to a signal input from a temperature sensor for sensing the temperature of the melting furnace 1 and the temperature of the duct connecting means 10 and the duct 3. Molten metal transfer device using a linear induction motor, characterized in that. According to claim 1, The duct connecting means 10 is connected to the outlet 2 of the melting furnace (1) and one side of the duct (3) while the bending of the shape is deformed according to the change in the height and angle of the duct (3) Bellows 11 to be; A heater 1 (12) provided at an outer circumference of the bellows (11) to prevent cooling of the molten metal transferred into the bellows (11) while generating heat by an external power source; A temperature sensor 1 (13) which senses the temperature of the heater 1 (12) and the temperature of the bellows (11) and inputs it to the control means (50); And a blocking plate (14) for covering and insulating the outside of the heater (12). 3. The molten metal transfer apparatus of claim 2, wherein the heater 1 (12) is installed at intervals with an outer circumference of the bellows (11). The molten metal using the linear induction motor according to claim 2, wherein the temperature sensor 1 (13) is fixed to the blocking plate (14), and the sensing rod end is installed on the inside of the blocking plate (14). Conveying device. According to claim 1, The heat insulation / heat insulating means 20 is wrapped around the both ends of the duct (3), the heat insulating body 21 for wrapping one side of the duct (3) thinner than the other side and insulated; A heater 2 (22) installed near the duct (3) at a portion where the heat insulator (21) is formed relatively thick with respect to the duct (3), and generating heat by a power applied from the outside; And a temperature sensor 2 (23) for sensing the temperature of the heater 2 (22) or the duct (3) and inputting it to the control means (50). The molten metal transfer apparatus according to claim 5, wherein the heat insulator (21) is made of ceramic. The fixed bracket 31 of claim 1, wherein the duct height adjusting means 30 is connected to the main frame 1 'for protecting the melting furnace 1, and supports the operating bar 32 so as to be hinged. and; One end is hinged to the fixing bracket 31, the other end is hinged to the connecting piece 34, provided horizontally with an interval, the operating bar to rotate up and down about the hinge of the fixing bracket (31) 32); A duct height adjusting handle 33 which is screwed with the operation bar 32 to penetrate the fixing bracket 31 and fixes the operation bar 32 to the fixing bracket 31 by tightening and releasing operation; The operating bar 32 and the hinge is coupled, one end is hinged to the connection bracket 37 of the fixed body 36 fixed to the upper surface of the heat insulator 21, coupled to the connection bracket 37 A connection piece 34 for adjusting an angle of the duct 3 about a hinge; And a duct angle adjusting handle 35 which is screwed with the connection bracket 37 through the connection piece 34 to fix the connection bracket 37 to the connection piece 34 by tightening and loosening. Molten metal transfer device using a linear induction motor. According to claim 1, wherein the linear induction motor support means 40 is provided with two or more upward at intervals from the upper surface of the support, the shaft 42 for adjusting the height and angle by the operation of the height adjustment (41) ; And a support plate (43) coupled to an end of the shaft (42) to support the linear induction motor (5). The method according to any one of claims 1 to 5 or 8, wherein the distance between the linear induction motor (5) supported by the linear induction motor support means (40) and the lower surface of the insulation / heat insulation means (20). The molten metal transfer device using a linear induction motor, characterized in that consisting of less than 5 ~ 30mm. The method of claim 8, wherein the height adjustment port 41 is adjusted in length so as to adjust the length of the shaft with a small diameter along the shaft with a large diameter in the state in which the shaft with a small diameter is inserted into the shaft with a large diameter, Molten metal transfer device using a linear induction motor, characterized in that consisting of a bolt for fastening and fixing to maintain the length. The molten metal transfer device according to claim 1, wherein the height adjustment port (41) comprises a lever for adjusting a piston operation of the cylinder. 10. The heat insulator according to any one of claims 1 to 5 or 8, wherein the linear induction motor (5) supported by the linear induction motor support means (40) and the duct height adjusting means (20) are supported. The inclination angle of the thermal insulation means 20 is a molten metal transfer device using a linear induction motor, characterized in that consisting of 41.9 ° ± 5 °. 2. The heater 1 (2) according to claim 1, wherein the control means (50) is provided only when the temperature input is lower than or equal to a preset temperature in comparison with a signal input from the temperature sensors 1 (2) and (13) (23). Molten metal transfer apparatus using a linear induction motor, characterized in that it comprises a function to operate (22).

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