A levitation melting furnace and melting method

Abstract

This invention relates to the field of smelting technology, and more specifically, to a suspension smelting furnace and smelting method. The suspension smelting furnace includes a smelting assembly and a cooling assembly. The smelting assembly includes a receiving unit and a heating unit. The heating unit is fixedly sleeved on the outer end of the receiving unit. The heating unit has a first flow channel. The cooling assembly is connected to the heating unit and communicates with the first flow channel to deliver a cooling medium within the first flow channel. The flow direction of the cooling medium within the first flow channel is adjustable. This solves the problem of poor cooling effect caused by the direction of cooling water flow.

Description

Technical Field

[0001] This invention relates to the field of smelting technology, and more specifically, to a suspension smelting furnace and smelting method. Background Technology

[0002] A levitation melting furnace is a type of furnace in which the molten material is placed in a magnetic field during the melting process. The electromagnetic force cancels out the gravity, thus suspending the molten material. The molten material is then heated to a high temperature to complete the melting process. Levitation melting furnaces often use crucibles and induction coils in combination. After melting is completed, the induction coils and crucibles need to be cooled down.

[0003] In existing suspension melting furnaces, when cooling the induction coil, the cooling medium is often discharged from bottom to top through a pre-set cooling channel inside the induction coil to meet the exhaust requirements. However, because heat dissipates above the crucible, the temperature above the induction coil is higher than the temperature below. As a result, the cooling medium will first come into contact with the low-temperature area during its movement. When the cooling medium moves to the high-temperature area, the temperature of the cooling medium will also rise, thus affecting the cooling effect when the cooling medium reaches the high-temperature area. Summary of the Invention

[0004] To address the problem of poor cooling effect caused by the direction of cooling water flow, this invention provides a suspension melting furnace and melting method:

[0005] In a first aspect, the present invention provides a suspension melting furnace, comprising:

[0006] A smelting assembly, comprising a receiving unit and a heating unit; the heating unit is fixedly sleeved on the outer end of the receiving unit; the heating unit is provided with a first flow channel;

[0007] A cooling assembly is connected to the heating unit and communicates with the first flow channel to deliver a cooling medium into the first flow channel.

[0008] The flow direction of the cooling medium in the first flow channel can be adjusted.

[0009] Optionally, the heating unit includes an induction coil and a first flow channel; the induction coil is fixedly wound around the outer end of the receiving unit, and the first flow channel is provided inside the induction coil.

[0010] Optionally, the cooling assembly includes a first cooling unit and a mounting portion; the first cooling unit is mounted on the mounting portion, the first cooling unit is in communication with the first flow channel, and the mounting portion is connected to the receiving unit.

[0011] Optionally, the first cooling unit includes an outer electrode, an inner electrode, and a bidirectional pump; both the outer electrode and the inner electrode are hollow tubular; the outer electrode is connected to the mounting portion; the inner electrode is disposed within a hollow cavity of the outer electrode, and the inner electrode and the outer electrode are coaxially arranged, with the hollow cavity of the inner electrode forming a second flow channel; the outer wall of the inner electrode and the inner wall of the cavity of the outer electrode together form a third flow channel; one end of the first flow channel communicates with the second flow channel, and the other end of the first flow channel communicates with the third flow channel, with one end of the first flow channel located above the other end of the first flow channel; the ends of the second and third flow channels away from the first flow channel are connected to the bidirectional pump.

[0012] Optionally, it further includes a first mounting head and a telescopic head; one end of the first mounting head is connected and communicates with the third flow channel, and the other end of the mounting head is slidably connected to the telescopic head, which is connected and communicates with the first flow channel.

[0013] Optionally, the receiving unit includes a crucible and a fourth flow channel; the induction coil is fixedly wound around the outer end of the crucible; the crucible is provided with the fourth flow channel, which is connected to the cooling assembly.

[0014] Optionally, the cooling assembly further includes a second cooling unit; the second cooling unit includes a cooling pipe and a connector; at least two of the cooling pipes are disposed within the mounting portion; one end of the connector is connected to and communicates with the cooling pipe, and the other end of the connector is connected to the crucible and communicates with the fourth flow channel.

[0015] Optionally, it further includes a conductive component; the conductive component includes a conductive unit and a support unit, the conductive unit being electrically connected to the inner electrode and the outer electrode; the conductive unit is connected to the support unit.

[0016] Optionally, the conductive unit includes an outer winch, an inner winch, an outer conductive plate, an inner conductive plate, a first flexible conductive element, and a second flexible conductive element. The outer winch is connected to the outer electrode; the inner winch is connected to the inner electrode; the outer conductive plate is connected to the support unit, and the outer conductive plate is spaced apart from the outer winch; one end of the first flexible conductive element is connected to the outer conductive plate, and the other end of the first flexible conductive element is connected to the outer winch; the inner conductive plate is connected to the support unit, and the inner conductive plate is spaced apart from the inner winch; one end of the second flexible conductive element is connected to the inner conductive plate, and the other end of the second flexible conductive element is connected to the inner winch.

[0017] Optionally, the support unit includes a support portion and an insulating portion; the support portion is connected to the outer conductive plate and the inner conductive plate; the outer conductive plate and the inner conductive plate are spaced apart; the insulating portion is connected to the support portion and is located between the outer conductive plate and the inner conductive plate.

[0018] Optionally, it further includes a drive assembly; the drive assembly includes a drive part, a first connecting part, a second connecting part, and a fixing part; the fixing part is sleeved on the mounting part; the fixing part is rotatably disposed with the mounting part; the drive part is connected to the first connecting part; one end of the second connecting part is connected to the mounting part, and the other end of the second connecting part is rotatably connected to the first connecting part.

[0019] In a second aspect, the present invention provides a smelting method, the smelting method comprising any of the suspension smelting furnaces described in the first aspect, the smelting method comprising:

[0020] The heating unit heats the raw materials within the container unit by placing the metal raw materials inside the container unit.

[0021] After the heating unit heats the metal raw material in the containing unit to a specified temperature, the metal raw material in the containing unit is then unloaded.

[0022] Based on the receiving unit after the material is unloaded; the cooling assembly discharges cooling medium into the first flow channel;

[0023] The direction of the cooling medium flow is changed based on the fact that the cooling medium is located in the first flow channel.

[0024] Optionally, changing the flow direction of the cooling medium based on the cooling medium being located within the first flow channel includes: based on the cooling medium being located within the first flow channel, directing the cooling medium from the bottom end of the first flow channel to the top end of the first flow channel;

[0025] Based on a set time for the cooling medium to flow from the bottom to the top of the first flow channel, the flow direction of the cooling medium is changed, wherein the changed flow direction of the cooling medium is from the top to the bottom of the first flow channel.

[0026] To address the problem of poor cooling effect caused by the direction of cooling water flow, the present invention has the following advantages:

[0027] When in use, the cooling medium flows from bottom to top in the flow channel, effectively expelling air from the first flow channel. After expelling the air, the flow direction of the cooling medium in the first flow channel can be changed to flow from top to bottom. This effectively avoids the problem that the cooling medium's temperature would rise when flowing from bottom to top, causing a decrease in cooling effect. Furthermore, the adjustable flow direction of the cooling medium effectively meets the requirements for expelling air from the first flow channel and ensures the cooling effect after changing the flow direction. Attached Figure Description

[0028] Figure 1 A schematic diagram of the internal structure of a suspension melting furnace according to one embodiment is shown;

[0029] Figure 2 A top view schematic diagram of a suspension melting furnace according to one embodiment is shown;

[0030] Figure 3 A schematic diagram of the structure of a suspension melting furnace according to one embodiment is shown;

[0031] Figure 4 A side view of a suspension melting furnace according to one embodiment is shown.

[0032] Figure 5 A flowchart of a melting method according to one embodiment is shown.

[0033] Reference numerals: 10, melting assembly; 11, heating unit; 111, induction coil; 112, first flow channel; 12, receiving unit; 121, crucible; 122, fourth flow channel; 20, cooling assembly; 21, mounting part; 22, first cooling unit; 221, outer electrode; 222, inner electrode; 223, second flow channel; 224, third flow channel; 23, second cooling unit; 231, cooling pipe; 232, connector; 30, conductive assembly; 31, conductive unit; 311, outer winch; 312, inner winch; 313, outer conductive plate; 314, inner conductive plate; 315, first flexible conductive element; 316, second flexible conductive element; 32, support unit; 321, support part; 322, insulation part; 40, driving assembly; 41, driving part; 42, first connecting part; 43, second connecting part; 44, fixing part. Detailed Implementation

[0034] The present disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thus implement the present disclosure, and are not intended to imply any limitation on the scope of the disclosure.

[0035] As used herein, the term "comprising" and its variations are to be interpreted as open-ended terms meaning "including but not limited to". The term "based on" is to be interpreted as "at least partially based on". The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment". The term "another embodiment" is to be interpreted as "at least one other embodiment". The terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments and are not intended to limit the indicated devices, elements, or components to having a specific orientation or being constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientations or positional relationships; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances. In addition, the terms "installed", "set up", "equipped with", "connected", and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, elements, or components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. Furthermore, the terms "first," "second," etc., are mainly used to distinguish different devices, elements, or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0036] Example 1:

[0037] A levitation melting furnace is a type of furnace in which the molten material is placed in a magnetic field during the melting process. The electromagnetic force cancels out the gravity, thus suspending the molten material. The molten material is then heated to a high temperature to complete the melting process. Levitation melting furnaces often use crucibles and induction coils in combination. After melting is completed, the induction coils and crucibles need to be cooled down.

[0038] In existing suspension melting furnaces, when cooling the induction coil, the cooling medium is often discharged from bottom to top through a pre-set cooling channel inside the induction coil to meet the exhaust requirements. However, because heat dissipates above the crucible, the temperature above the induction coil is higher than the temperature below. As a result, the cooling medium will first come into contact with the low-temperature area during its movement. When the cooling medium moves to the high-temperature area, the temperature of the cooling medium will also rise, thus affecting the cooling effect when the cooling medium reaches the high-temperature area.

[0039] This embodiment discloses a suspension melting furnace, such as Figure 1 As shown, the suspension melting furnace includes a melting assembly 10 and a cooling assembly 20. The melting assembly 10 includes a receiving unit 12 and a heating unit 11; the heating unit 11 is fixedly sleeved on the outer end of the receiving unit 12; the heating unit 11 is provided with a first flow channel 112; that is, during use, the metal raw material to be melted is placed in the receiving unit 12, and the heating unit 11 heats the inside of the receiving unit 12, thereby melting the metal raw material inside the receiving unit 12. The cooling assembly 20 is connected to the heating unit 11 and communicates with the first flow channel 112 to supply cooling medium into the first flow channel 112. After heating is completed, the cooling assembly 20 supplies coolant to the first flow channel 112 within the heating unit 11, thereby cooling the heating unit 11. As soon as the cooling medium enters the first flow channel 112, it flows from bottom to top, effectively expelling air from the channel. After expelling the air, the flow direction of the cooling medium in the first flow channel 112 can be changed to flow from top to bottom. This effectively avoids the problem that the cooling medium's temperature would rise when it flows from bottom to top, causing a decrease in cooling effect. Furthermore, the adjustable flow direction of the cooling medium effectively meets the requirements for expelling air from the first flow channel 112 and ensures cooling effect after changing the flow direction.

[0040] Furthermore, such as Figure 1 As shown, the heating unit 11 includes an induction coil 111 and a first flow channel 112. The induction coil 111 is fixedly wound around the outer end of the receiving unit 12, and the first flow channel 112 is provided inside the induction coil 111. The induction coil 111 wound around the outer end of the receiving unit 12 can effectively heat the metal raw material inside the receiving unit 12. The first flow channel 112 is provided inside the induction coil 111 and is arranged along the path of the induction coil 111, which can effectively increase the length of the first flow channel 112, thereby extending the flow time of the cooling medium in the first flow channel 112 and thus improving the cooling effect.

[0041] Furthermore, such as Figure 1 As shown, the cooling assembly 20 includes a first cooling unit 22 and a mounting part 21. The first cooling unit 22 is mounted on the mounting part 21 and communicates with the first flow channel 112. The mounting part 21 is connected to the receiving unit 12. The mounting part 21 completes the installation of the first cooling unit 22 and the receiving unit 12, thereby ensuring the stability of the first cooling unit 22 and the receiving unit 12.

[0042] Furthermore, such as Figure 1As shown, the first cooling unit 22 includes an outer electrode 221, an inner electrode 222, and a bidirectional pump.Both the outer electrode 221 and the inner electrode 222 are hollow tubular structures. The outer electrode 221 is connected to the mounting part 21. The inner electrode 222 is disposed within the hollow cavity of the outer electrode 221, and is coaxially arranged with the outer electrode 221. The hollow cavity of the inner electrode 222 forms a second flow channel 223. The outer wall of the inner electrode 222 and the inner wall of the cavity of the outer electrode 221 enclose a third flow channel 224. One end of the first flow channel 112 is connected to the second flow channel 223, and the other end of the first flow channel 112 is connected to the third flow channel 224. One end of the first flow channel 112 is located above the other end of the first flow channel 112. The second flow channel 223 and the third flow channel 224 are located away from the first flow channel. One end of 112 is connected to a bidirectional pump. The outer electrode 221 and the inner electrode 222 are coaxially arranged and both are hollow. The hollow cavity of the inner electrode 222 forms a second flow channel 223 for conveying or discharging the cooling medium. The second flow channel 223 is interconnected with the first flow channel 112. The outer wall of the inner electrode 222 and the hollow cavity of the outer electrode 221 together form a third flow channel 224, which is connected to the end of the first flow channel 112 away from the second flow channel 223, thus forming a complete path for the cooling medium to flow. The second flow channel 223 and the third flow channel 224 are connected to the bidirectional pump, so that during use, the cooling medium can be input into the first flow channel 112 through the third flow channel 224. The third flow channel 224 is connected to the lower end of the first flow channel 112. When the cooling medium flows into the third flow channel 224, the rising of the cooling medium within the first flow channel 112 effectively dissipates all the air within the first flow channel 112. After cooling, the cooling medium is discharged through the second flow channel 223. After a period of operation, the cooling medium can be discharged from the second flow channel 223 into the first flow channel 112 under the action of the bidirectional pump. Thus, the cooling medium is discharged from the higher end of the first flow channel 112. Due to heat dissipation, the cooling medium can dissipate heat to high-temperature areas as soon as it enters the first flow channel 112, compared to the cooling medium moving from a low-temperature area to a high-temperature area. When the cooling medium temperature rises, the cooling effect on high-temperature areas becomes unsatisfactory. The cooling medium entering the first flow channel 112 can effectively improve the efficiency by dissipating heat from high-temperature areas. Furthermore, the cooling medium flows out through the third flow channel 224, which allows the cooled medium to dissipate heat to the outside through the outer wall of the external electrode 221. In contrast, the cooled medium in the second flow channel 223 cannot exchange heat with the outside and can only exchange heat with the uncooled cooling medium in the third flow channel 224. The cooling medium flowing through the third flow channel 224 provides an additional heat exchange environment, which can effectively reduce the impact of the cooled medium on the uncooled medium.

[0043] Furthermore, such as Figure 1 As shown, the receiving unit 12 includes a crucible 121 and a fourth flow channel 122. The induction coil 111 is fixedly wound around the outer end of the crucible 121; the crucible 121 is provided with a fourth flow channel 122, which is connected to the cooling assembly 20. The cooling assembly 20 can also deliver a cooling medium into the fourth flow channel 122, thereby cooling the induction coil 111 and the crucible 121 at the same time.

[0044] Furthermore, such as Figure 2 As shown, the cooling assembly 20 also includes a second cooling unit 23. The second cooling unit 23 includes a cooling pipe 231 and a connector 232; at least two cooling pipes 231 are disposed in the mounting portion 21; one end of the connector 232 is connected to and communicates with the cooling pipes 231, and the other end of the connector 232 is connected to the crucible 121 and communicates with the fourth flow channel 122. By connecting the two cooling pipes 231 to the fourth flow channel 122 respectively, the cooling medium can be effectively discharged into the fourth flow channel 122 and the cooled medium can be received, thereby achieving the effect of cooling the crucible 121.

[0045] The suspension melting furnace also includes a first mounting head and a telescopic head. One end of the first mounting head is connected to and communicates with the third flow channel 224, and the other end of the first mounting head is slidably connected to the telescopic head, which is connected to and communicates with the first flow channel 112. Through the cooperation of the first mounting head and the telescopic head, after the induction coil 111 is cooled, the telescopic head can be slid into the first mounting head, at which point the communication between the third flow channel 224 and the first flow channel 112 is canceled. At this time, cleaning liquid can be delivered to the first flow channel 112 through the second flow channel 223, and then flow out through the canceled end of the first flow channel 112, thereby cleaning the first flow channel 112 and the second flow channel 223. Alternatively, cleaning liquid can be delivered directly through the third flow channel 224, which can also clean the third flow channel 224. This ensures that the cooling medium does not precipitate in the first flow channel 112, the second flow channel 223, and the third flow channel 224, thus preventing a decrease in cooling effect and effectively ensuring the cooling stability of the device.

[0046] Furthermore, such as Figure 4 As shown, it also includes a conductive component 30. The conductive component 30 includes a conductive unit 31 and a support unit 32. The conductive unit 31 is electrically connected to the inner electrode 222 and the outer electrode 221. The conductive unit 31 is connected to the support unit 32. The conductive component 30 supplies power to the induction coil 111, thereby facilitating the heating of the metal raw material in the crucible 121 by the induction coil 111.

[0047] Furthermore, such as Figure 4 As shown, the conductive unit 31 includes an outer winch 311, an inner winch 312, an outer conductive plate 313, an inner conductive plate 314, a first flexible conductive element 315, and a second flexible conductive element 316. The outer winch 311 is connected to the outer electrode 221; the inner winch 312 is connected to the inner electrode 222; the outer conductive plate 313 is connected to the support unit 32, and the outer conductive plate 313 and the outer winch 311 are spaced apart; one end of the first flexible conductive element 315 is connected to the outer conductive plate 313, and the other end of the flexible conductive element is connected to the outer winch 311; the inner conductive plate 314 is connected to the support unit 32, and the inner conductive plate 314 and the inner winch 312 are spaced apart; one end of the second flexible conductive element 316 is connected to the inner conductive plate 314, and the other end of the second flexible conductive element 316 is connected to the inner winch 312. The outer conductive plate 313 supplies power to the outer winch 311 through the first flexible conductive element 315. The outer winch 311 is disposed on the outer electrode 221 and supplies power to the outer electrode 221. The inner conductive plate 314 supplies power to the inner winch 312 through the second flexible conductive element 316. The inner winch 312 is connected to the inner electrode 222, thereby completing the power supply to the inner electrode 222. In this way, the power supply to the inner electrode 222 and the outer electrode 221 is completed respectively, and finally the power supply to the induction coil 111 is realized so that it heats up and generates magnetic force to complete the levitation operation of the metal raw material.

[0048] Furthermore, such as Figure 4 As shown, the support unit 32 includes a support portion 321 and an insulating portion 322. The support portion 321 is connected to the outer conductive plate 313 and the inner conductive plate 314; the outer conductive plate 313 and the inner conductive plate 314 are spaced apart; the insulating portion 322 is connected to the support portion 321 and is located between the outer conductive plate 313 and the inner conductive plate 314. The support portion 321 can effectively complete the installation of the outer conductive plate 313 and the inner conductive plate 314, and can also complete the installation of the insulating portion 322. The insulating portion 322 is located between the outer conductive plate 313 and the inner conductive plate 314, which can effectively prevent short circuits between the inner conductive plate 314 and the outer conductive plate 313, thereby effectively improving the stability of the device.

[0049] Furthermore, such as Figure 3As shown, it also includes a drive assembly 40. The drive assembly 40 includes a drive part 41, a first connecting part 42, a second connecting part 43, and a fixing part 44; the fixing part 44 is sleeved on the mounting part 21; the fixing part 44 is rotatably disposed with respect to the mounting part 21; the drive part 41 is connected to the first connecting part 42; one end of the second connecting part 43 is connected to the mounting part 21, and the other end of the second connecting part 43 is rotatably connected to the first connecting part 42. The drive part 41 drives the first connecting part 42 to move, and the movement of the first connecting part 42 drives the movement of the second connecting part 43. The mounting part 21 is fixed by the fixing part 44. The mounting part 21 only... It can slide on the fixed part 44, so that when the second connecting part 43 moves, it can effectively drive the mounting part 21 to rotate, thereby driving the crucible 121 and the induction coil 111 to rotate, thus facilitating the pouring operation of the molten metal material in the crucible 121. The first flexible conductive member 315 and the second flexible conductive member 316 can maintain the power supply of the outer conductive plate 313 to the outer winch 311 and the power supply of the inner conductive plate 314 to the inner winch 312 when the mounting part 21 rotates, driving the outer electrode 221, the outer stirrer, the inner electrode 222 and the inner winch 312 to rotate.

[0050] Example 2:

[0051] This embodiment provides a smelting method, which is applied to any of the suspension smelting furnaces in Embodiment 1, such as... Figure 5 As shown, the smelting method includes the following steps S10-40:

[0052] Step S10 involves placing the metal raw material into the receiving unit 12. The metal raw material is placed into the crucible 121, and the heating unit 11 heats the raw material in the receiving unit 12. The metal raw material in the crucible 121 is heated by the induction coil 111 wound around the outer end of the crucible 121.

[0053] Step S20: After the metal raw material in the containing unit 12 is heated to a specified temperature by the heating unit 11, the metal raw material will melt into a liquid after being heated to a certain temperature. The metal raw material in the containing unit 12 is fed into the crucible 121, that is, the liquid metal raw material is poured.

[0054] In step S30, based on the receiving unit 12 after the material is unloaded, the metal raw material still has a temperature inside the crucible 121 after casting; the cooling component 20 discharges the cooling medium into the first flow channel 112, that is, the cooling component 20 discharges the cooling medium into the first flow channel 112, and the cooling medium flows through the first flow channel 112 to exchange heat and thus cool it.

[0055] Step S40: Based on the cooling medium flowing within the first flow channel 112; the cooling medium flows within the first flow channel 112 for cooling; the flow direction of the cooling medium is changed. At the beginning of cooling, the cooling medium can be moved from bottom to top within the first flow channel 112 to remove air from the first flow channel 112. After removal, the direction of the cooling medium can be changed so that it flows from top to bottom within the first flow channel 112, thereby effectively contacting the high-temperature area first and improving the cooling effect.

[0056] Furthermore, based on the fact that the cooling medium is flowing within the first flow channel 112, changing the flow direction of the cooling medium includes: based on the fact that the cooling medium is flowing within the first flow channel 112, changing the flow direction of the cooling medium from the bottom end of the first flow channel 112 to the top end of the first flow channel 112;

[0057] Based on a set time for the cooling medium to flow from the bottom to the top of the first flow channel 112, the flow direction of the cooling medium is changed, wherein the changed flow direction of the cooling medium is from the top to the bottom of the first flow channel 112.

[0058] Those skilled in the art will understand that the above embodiments are specific examples of implementing this disclosure, and in practical applications, various changes can be made in form and detail without departing from the scope of this disclosure.

Claims

1. A smelting method for a suspension smelting furnace, characterized in that, The suspension melting furnace includes: A smelting assembly, comprising a receiving unit and a heating unit; the heating unit is fixedly sleeved on the outer end of the receiving unit; the heating unit is provided with a first flow channel; A cooling assembly is connected to the heating unit and communicates with the first flow channel to deliver a cooling medium into the first flow channel. The flow direction of the cooling medium in the first flow channel can be adjusted. The heating unit includes an induction coil and a first flow channel; the induction coil is fixedly wound around the outer end of the receiving unit, and the first flow channel is provided inside the induction coil; The smelting method in the suspension melting furnace includes: The heating unit heats the raw materials within the container unit by placing the metal raw materials inside the container unit. After the heating unit heats the metal raw material in the containing unit to a specified temperature, the metal raw material in the containing unit is then unloaded. Based on the receiving unit after the material is unloaded; the cooling assembly discharges cooling medium into the first flow channel; Based on the fact that the cooling medium is flowing within the first flow channel, the flow direction of the cooling medium is changed; The step of changing the flow direction of the cooling medium based on the cooling medium being located within the first flow channel includes: based on the cooling medium being located within the first flow channel, changing the flow direction of the cooling medium from the bottom end of the first flow channel to the top end of the first flow channel; Based on a set time for the cooling medium to flow from the bottom to the top of the first flow channel, the flow direction of the cooling medium is changed, wherein the changed flow direction of the cooling medium is from the top to the bottom of the first flow channel.

2. A smelting method of a suspension smelting furnace according to claim 1, characterized by The cooling assembly includes a first cooling unit and a mounting portion; the first cooling unit is mounted on the mounting portion and communicates with the first flow channel, and the mounting portion is connected to the receiving unit.

3. A smelting method of a suspension smelting furnace according to claim 2, characterized by The first cooling unit includes an outer electrode, an inner electrode, and a bidirectional pump; both the outer electrode and the inner electrode are hollow tubular; the outer electrode is connected to the mounting portion; the inner electrode is disposed within a hollow cavity of the outer electrode, and the inner electrode and the outer electrode are coaxially arranged, with the hollow cavity of the inner electrode forming a second flow channel; the outer wall of the inner electrode and the inner wall of the cavity of the outer electrode together form a third flow channel; one end of the first flow channel communicates with the second flow channel, and the other end of the first flow channel communicates with the third flow channel, with one end of the first flow channel located above the other end of the first flow channel; The ends of the second and third flow channels away from the first flow channel are connected to the bidirectional pump.

4. The smelting method in a suspension melting furnace according to claim 3, characterized in that, It also includes a first mounting head and a telescopic head; one end of the first mounting head is connected and communicates with the third flow channel, and the other end of the first mounting head is slidably connected to the telescopic head, which is connected and communicates with the first flow channel.

5. The smelting method in a suspension melting furnace according to claim 3, characterized in that, The containing unit includes a crucible and a fourth flow channel; the induction coil is fixedly wound around the outer end of the crucible; the crucible is provided with the fourth flow channel, which is connected to the cooling component.

6. The smelting method in a suspension melting furnace according to claim 5, characterized in that, The cooling assembly further includes a second cooling unit; the second cooling unit includes a cooling pipe and a connector; at least two cooling pipes are disposed within the mounting portion; one end of the connector is connected to and communicates with the cooling pipe, and the other end of the connector is connected to the crucible and communicates with the fourth flow channel.

7. The smelting method in a suspension melting furnace according to claim 6, characterized in that, It also includes a conductive component; the conductive component includes a conductive unit and a support unit, the conductive unit being electrically connected to the inner electrode and the outer electrode; the conductive unit is connected to the support unit.

8. The smelting method in a suspension melting furnace according to claim 7, characterized in that, The conductive unit includes an outer winch, an inner winch, an outer conductive plate, an inner conductive plate, a first flexible conductive element, and a second flexible conductive element. The outer winch is connected to the outer electrode; the inner winch is connected to the inner electrode; the outer conductive plate is connected to the support unit, and the outer conductive plate is spaced apart from the outer winch; one end of the first flexible conductive element is connected to the outer conductive plate, and the other end of the flexible conductive element is connected to the outer winch; the inner conductive plate is connected to the support unit, and the inner conductive plate is spaced apart from the inner winch; one end of the second flexible conductive element is connected to the inner conductive plate, and the other end of the second flexible conductive element is connected to the inner winch.

9. The smelting method in a suspension melting furnace according to claim 8, characterized in that, The support unit includes a support portion and an insulating portion; the support portion is connected to the outer conductive plate and the inner conductive plate; the outer conductive plate and the inner conductive plate are spaced apart; the insulating portion is connected to the support portion and is located between the outer conductive plate and the inner conductive plate.

10. The smelting method in a suspension melting furnace according to claim 3, characterized in that, It also includes a drive assembly; the drive assembly includes a drive part, a first connecting part, a second connecting part, and a fixing part; the fixing part is sleeved on the mounting part; the fixing part is rotatably disposed with the mounting part; the drive part is connected to the first connecting part; one end of the second connecting part is connected to the mounting part, and the other end of the second connecting part is rotatably connected to the first connecting part.

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