Intermediate-frequency smelting furnace with cooling circulation device

Abstract

The utility model discloses an intermediate frequency smelting furnace with a cooling circulation device, which relates to the technical field of smelting furnaces, and comprises a smelting mechanism, one side of the smelting mechanism is fixedly connected with a circulation heat dissipation mechanism, and one side of the circulation heat dissipation mechanism is fixedly connected with a preheating mechanism. And the circulating heat dissipation mechanism comprises a mounting box which is internally divided into a cold cavity and a hot cavity. Through the arrangement of the circulating heat dissipation mechanism, heat at the cold end of the refrigerator is continuously transferred to the hot end of the refrigerator through heat transfer of the semiconductor refrigerator, then the cold end of the refrigerator cools cooling liquid, the circulating cooling effect is achieved through circulating flowing of the cooling liquid in the circulating pipe, and the heat generated by the hot end can be dissipated to the cold end of the refrigerator. When the preheating crucible is placed in the inner cylinder to be smelted, flowing air can be transferred into the preheating outer cylinder and indirectly makes contact with the preheating crucible, materials in the preheating crucible are preheated, and when the preheating crucible is placed in the inner cylinder to be smelted, the smelting speed is higher, and the energy utilization rate is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of smelting furnaces, in particular to a medium frequency smelting furnace with a cooling circulation device. Background Art

[0002] A medium-frequency melting furnace is a type of equipment used for metal smelting. It primarily heats metal materials through the principle of electromagnetic induction. During operation, the medium-frequency current generated by the medium-frequency power supply passes through the induction coil, generating eddy currents within the metal being smelted, causing the metal to heat and melt. Medium-frequency melting furnaces offer the following features and advantages: high efficiency and energy saving; rapid heating, capable of melting metal to the desired temperature in a relatively short period of time, improving production efficiency; high energy efficiency; more energy-efficient than traditional melting methods; precise temperature control; precise control of the melting temperature ensures stable and consistent melting quality; minimal metal burnout; uniform heating reduces oxidation and burnout during the melting process. They have a wide range of applications and can melt a variety of metals, such as iron, steel, copper, and aluminum. They are also easy to operate, with a high degree of automation, making them easy to operate and monitor.

[0003] At present, the induction coils, thyristors and other electronic components in the medium frequency melting furnace generate a lot of heat when working. Excessive temperature will damage these components and affect the normal operation of the equipment. Therefore, the medium frequency melting furnace needs to be cooled. The existing cooling method is mostly through direct air cooling to transfer the heat generated in the medium frequency melting furnace to the outside air through flowing air. However, with this heat dissipation method, the heat is directly lost in the air and cannot be recycled, resulting in a certain amount of energy waste. Utility Model Content

[0004] The utility model provides a medium frequency melting furnace with a cooling circulation device to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] The heat dissipation device of claim 1, wherein the cooling fan is installed in the heat dissipation chamber and the cooling fan is installed in the heat dissipation chamber.

[0007] A further improvement of the technical solution of the present invention is that: the smelting mechanism includes an outer cylinder, and the surface of the circulating cooling pipe is fixedly connected to the inner wall of the outer cylinder.

[0008] A further improvement of the technical solution of the present utility model is that: a medium frequency melting controller is fixedly connected to the bottom of the inner cavity of the outer cylinder, and an induction coil is fixedly connected to the top of the medium frequency melting controller.

[0009] A further improvement of the technical solution of the present invention is that: an inner cylinder is fixedly connected to the interior of the induction coil, and a smelting crucible is inserted into the inner wall of the inner cylinder.

[0010] A further improvement of the technical solution of the present invention is that the preheating mechanism comprises a preheating outer cylinder, and the interior of the preheating outer cylinder is fixedly connected to a preheating inner cylinder.

[0011] A further improvement of the technical solution of the present invention is that the inner cavity of the preheating outer cylinder is connected to the hot cavity of the installation box through a connecting pipe, an air outlet is opened on one side of the inner cavity of the preheating outer cylinder, and a preheating crucible is inserted into the interior of the preheating inner cylinder.

[0012] Due to the adoption of the above technical solution, the present invention has achieved the following technical advancements compared to the prior art:

[0013] The utility model provides a medium frequency melting furnace with a cooling circulation device. Through the setting of a circulating heat dissipation mechanism and the use of heat transfer by a semiconductor refrigerator, the heat at the cold end of the refrigerator is continuously transferred to the hot end of the refrigerator, thereby causing the cold end of the refrigerator to cool the coolant. The circulating flow of the coolant in the circulation pipe achieves a circulating cooling effect. The heat generated by the hot end can be transferred to the preheating outer cylinder through the flowing air, and indirectly contact the preheating crucible to preheat the material in the preheating crucible. When the preheating crucible is placed in the inner cylinder for melting, the melting speed is faster and the energy utilization rate is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the exploded structure of the utility model;

[0016] Figure 3 This is a schematic cross-sectional view of the utility model;

[0017] Figure 4 This is a schematic structural diagram of the circulating heat dissipation mechanism of the present utility model.

[0018] In the figure: 1. Melting mechanism; 11. Outer cylinder; 12. Medium frequency melting controller; 13. Induction coil; 14. Inner cylinder; 15. Melting crucible; 2. Circulating heat dissipation mechanism; 21. Installation box; 22. Semiconductor refrigerator; 23. Refrigerator cold end; 24. Refrigerator hot end; 25. Circulating cooling pipe; 26. Circulating pump; 27. Blower; 28. Connecting pipe; 3. Preheating mechanism; 31. Preheating outer cylinder; 32. Preheating inner cylinder; 33. Air outlet; 34. Preheating crucible. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below with reference to the embodiments:

[0020] Example 1

[0021] like Figure 1-4As shown, the utility model provides a medium frequency melting furnace with a cooling circulation device, including a melting mechanism 1, a circulating heat dissipation mechanism 2 is fixedly connected to one side of the melting mechanism 1, a preheating mechanism 3 is fixedly connected to one side of the circulating heat dissipation mechanism 2, the circulating heat dissipation mechanism 2 includes an installation box 21 with a cold chamber and a hot chamber separated therein, a semiconductor cooler 22 is fixedly connected to the interior of the installation box 21, the semiconductor cooler 22, a cooler cold end 23 is provided on one side of the semiconductor cooler 22, and a cooler hot end 23 is provided on the other side of the semiconductor cooler 22. 4. The surface of the cold end 23 of the refrigerator is fixedly connected to the inner wall of the cold cavity of the installation box 21, the surface of the hot end 24 of the refrigerator is fixedly connected to the inner wall of the hot cavity of the installation box 21, the top of the hot cavity of the installation box 21 is connected to the blower 27 through a pipeline, one side of the hot cavity of the installation box 21 is fixedly connected to a connecting pipe 28, the top of the cold cavity of the installation box 21 is fixedly connected to a circulating cooling pipe 25, the other end of the circulating cooling pipe 25 is fixedly connected to one side of the cold cavity of the installation box 21, and the interior of the circulating cooling pipe 25 is connected to a circulating pump 26.

[0022] In this embodiment, the heat in the cold end 23 of the refrigerator is continuously transferred to the hot end 24 of the refrigerator through the semiconductor refrigerator 22 during operation, thereby cooling the coolant in the cold cavity of the installation box 21. Under the action of the circulating pump 26, the coolant circulates along the circulating cooling pipe 25, thereby indirectly contacting the interior of the medium frequency melting mechanism 1. Under heat exchange, the interior of the medium frequency melting mechanism 1 is cooled, and the heat transferred to the hot end 24 of the refrigerator is continuously input into the hot cavity in the installation box 21 under the action of the blower 27. The air contacts the hot end 24 of the refrigerator, and the heat is transferred to the preheating outer cylinder 31 to preheat the preheating crucible 34.

[0023] Example 2

[0024] like Figure 1-4 As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, the smelting mechanism 1 includes an outer cylinder 11, the surface of the circulating cooling pipe 25 is fixedly connected to the inner wall of the outer cylinder 11, the bottom of the inner cavity of the outer cylinder 11 is fixedly connected to the medium frequency smelting controller 12, the top of the medium frequency smelting controller 12 is fixedly connected to the induction coil 13, the interior of the induction coil 13 is fixedly connected to the inner cylinder 14, and the inner wall of the inner cylinder 14 is plugged with a smelting crucible 15.

[0025] In this embodiment, the melting crucible 15 filled with the material is placed in the inner cylinder 14, and then the preheating crucible 34 filled with the material is placed in the preheating inner cylinder 32. Then, the medium frequency melting controller 12 is started, and the induction coil 13 is used to generate induced eddy currents inside the smelted material, thereby causing the metal itself to heat up and melt.

[0026] Example 3

[0027] like Figure 1-4 As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, the preheating mechanism 3 includes a preheating outer cylinder 31, the interior of the preheating outer cylinder 31 is fixedly connected to the preheating inner cylinder 32, the inner cavity of the preheating outer cylinder 31 is connected to the hot cavity of the installation box 21 through the connecting pipe 28, an air outlet 33 is provided on one side of the inner cavity of the preheating outer cylinder 31, and a preheating crucible 34 is inserted into the interior of the preheating inner cylinder 32.

[0028] In this embodiment, heat is transferred to the preheating outer cylinder 31 by the flow of air. After coming into contact with the preheating inner cylinder 32, the preheating inner cylinder 32 is heated, thereby preheating the preheating crucible 34 inside the preheating inner cylinder 32. The air is then discharged from the air outlet 33, so that when the preheating crucible 34 is placed in the inner cylinder 14 for smelting, the smelting speed is faster and the energy utilization rate is higher.

[0029] The following is a detailed description of the working principle of the medium frequency melting furnace with a cooling circulation device.

[0030] like Figure 1-4 As shown, when in use, the melting crucible 15 filled with the material is placed in the inner cylinder 14, and then the preheating crucible 34 filled with the material is placed in the preheating inner cylinder 32, and then the medium frequency melting controller 12 is started, and the induction coil 13 is used to generate an induced eddy current inside the smelted material, so that the metal itself is heated and melted. During the operation, the heat in the cold end 23 of the refrigerator is continuously transferred to the hot end 24 of the refrigerator through the semiconductor refrigerator 22, thereby cooling the coolant in the cold cavity of the installation box 21. Under the action of the circulating pump 26, the coolant circulates along the circulating cooling pipe 25, thereby The heat source 24 of the refrigerator is directly connected to the intermediate frequency melting mechanism 1, and the inside of the intermediate frequency melting mechanism 1 is cooled down under heat exchange, and the heat is transferred to the hot end 24 of the refrigerator. Under the action of the blower 27, the outside air is continuously input into the hot cavity in the installation box 21, and contacts the hot end 24 of the refrigerator. By transferring the heat to the preheating outer cylinder 31, after contacting the preheating inner cylinder 32, the preheating inner cylinder 32 is heated, and then the preheating crucible 34 inside the preheating inner cylinder 32 is preheated. Then the air is discharged from the air outlet 33, so that when the preheating crucible 34 is placed in the inner cylinder 14 for melting, the melting speed is faster and the energy utilization rate is higher.

[0031] The above generally describes the present invention in detail. However, it is obvious to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A medium frequency melting furnace with a cooling circulation device, comprising a melting mechanism (1), characterized in that: One side of the smelting mechanism (1) is fixedly connected to a circulating heat dissipation mechanism (2), one side of the circulating heat dissipation mechanism (2) is fixedly connected to a preheating mechanism (3), the circulating heat dissipation mechanism (2) comprises an installation box (21) with a cold chamber and a hot chamber separated therein, the interior of the installation box (21) is fixedly connected to a semiconductor refrigerator (22), the semiconductor refrigerator (22) has a refrigerator cold end (23) provided on one side, a refrigerator hot end (24) provided on the other side, and the surface of the refrigerator cold end (23) is in contact with the installation box (21). The inner wall of the cold chamber of the installation box (21) is fixedly connected, the surface of the hot end (24) of the refrigerator is fixedly connected to the inner wall of the hot chamber of the installation box (21), the top of the hot chamber of the installation box (21) is connected to a blower (27) through a pipeline, one side of the hot chamber of the installation box (21) is fixedly connected to a connecting pipe (28), the top of the cold chamber of the installation box (21) is fixedly connected to a circulating cooling pipe (25), the other end of the circulating cooling pipe (25) is fixedly connected to one side of the cold chamber of the installation box (21), and the inside of the circulating cooling pipe (25) is connected to a circulating pump (26).

2. The medium frequency melting furnace with a cooling circulation device according to claim 1, characterized in that: The smelting mechanism (1) comprises an outer cylinder (11), and the surface of the circulating cooling pipe (25) is fixedly connected to the inner wall of the outer cylinder (11).

3. The medium frequency melting furnace with a cooling circulation device according to claim 2, characterized in that: The bottom of the inner cavity of the outer cylinder (11) is fixedly connected to a medium frequency melting controller (12), and the top of the medium frequency melting controller (12) is fixedly connected to an induction coil (13).

4. The medium frequency melting furnace with a cooling circulation device according to claim 3, characterized in that: An inner cylinder (14) is fixedly connected to the interior of the induction coil (13), and a smelting crucible (15) is inserted into the inner wall of the inner cylinder (14).

5. The medium frequency melting furnace with a cooling circulation device according to claim 1, characterized in that: The preheating mechanism (3) comprises a preheating outer cylinder (31), and a preheating inner cylinder (32) is fixedly connected to the interior of the preheating outer cylinder (31).

6. The medium frequency melting furnace with a cooling circulation device according to claim 5, characterized in that: The inner cavity of the preheating outer cylinder (31) is connected to the hot cavity of the installation box (21) through a connecting pipe (28), an air outlet (33) is provided on one side of the inner cavity of the preheating outer cylinder (31), and a preheating crucible (34) is inserted into the interior of the preheating inner cylinder (32).

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