Medium-frequency induction furnace

Abstract

The utility model provides a medium-frequency induction furnace, which relates to the technical field of smelting, and comprises an upper furnace body and a lower furnace body, the upper furnace body and the lower furnace body are detachably connected and define a cavity for accommodating a furnace lining material; the outer side of the furnace lining material is sleeved with a coil, and the coil is integrally provided with a coil lead-out part; and the coil is led out and is connected with a water-cooled cable through a middle splicing plate. Disassembly and assembly procedures can be simplified, construction difficulty can be reduced, and potential problems caused by welding coil leading-out can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of smelting, in particular to a medium frequency induction furnace. Background Art

[0002] The medium frequency induction furnace is a smelting equipment that uses a medium frequency power supply to establish a medium frequency magnetic field to generate eddy currents and heat inside the ferromagnetic material, thereby heating the material. It is mainly used for the smelting and purification of non-ferrous metals such as carbon steel, special steel, copper, and aluminum. The coil lead of the existing medium frequency induction furnace is assembled on the furnace body after the coil is wound, and then the coil and the coil lead are spliced ​​together by welding. The coil lead and the coil are not integrally formed. When the coil needs to be removed at the customer's site, the connection between the coil and the coil lead must be welded and heated to separate the coil lead from the coil. After the coil is reinstalled, the coil lead must be re-welded to the coil, and the insulating tape must be re-wound. The surface of the insulating tape is re-coated with insulating paint to complete the entire disassembly and assembly process. The above process is too complicated and has high requirements for the on-site welding of the coil lead. Poor welding may cause water leakage, which increases the difficulty of on-site construction, and also prolongs the construction time and has low work efficiency.

[0003] Therefore, the utility model proposes a medium frequency induction furnace. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model proposes a medium frequency induction furnace, which can simplify the disassembly and assembly process and reduce the construction difficulty, so as to avoid potential problems caused by the lead-out of the welding coil.

[0005] The technical solution of the utility model is achieved in this way:

[0006] A medium frequency induction furnace comprises an upper furnace body and a lower furnace body, wherein the upper furnace body and the lower furnace body are detachably connected and enclose a cavity for accommodating a furnace lining material; a coil is sleeved on the outer side of the furnace lining material, and the coil is integrally formed with a coil lead; the coil lead is connected to a water-cooling cable through an intermediate connecting plate.

[0007] Preferably, the coil is arranged at the lower part of the cavity and located in the lower furnace body.

[0008] Preferably, the outer side of the coil is provided with a relay for magnetic conduction and fastening.

[0009] Preferably, a mounting plate is provided on the coil lead-out and is bolted to the middle connecting plate via the mounting plate.

[0010] Preferably, a first cement layer is provided on the inner side of the upper furnace body.

[0011] Preferably, a second cement layer is provided at the bottom of the lower furnace body.

[0012] Preferably, a disassembly mold for disassembling the furnace lining material is provided throughout the second cement layer.

[0013] Preferably, the upper furnace body and the lower furnace body are connected by fastening bolts.

[0014] Compared with the prior art, the utility model has the following advantages:

[0015] By adopting this scheme, when the coil is manufactured, the coil lead is integrally arranged on the coil; when installing, the integrated coil is installed in the lower furnace body, and after the lower furnace body is assembled, the upper furnace body is connected to the lower furnace body, and then the coil lead is connected to the water-cooling cable through the intermediate connecting plate, and then the furnace lining material is sleeved into the inside of the coil. When disassembling, the furnace lining material is first taken out, and after the upper furnace body is separated from the lower furnace body, the intermediate connecting plate is removed to take out the coil. Therefore, when disassembling and assembling on site, there is no need to weld or desolder the coil lead, which greatly shortens the operation time of the coil. At the same time, since the coil lead is integrated with the coil and does not need to be disassembled, there is no need to re-wrap the insulating tape and apply insulating paint when disassembling and reinstalling, which improves the convenience of operation, that is, simplifies the disassembly and assembly process and reduces the difficulty of construction, so as to avoid potential problems caused by welding the coil lead. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 This is a schematic diagram of the planar structure of a medium frequency induction furnace of the utility model;

[0018] Figure 2 This is a planar structural diagram of the coil of the utility model;

[0019] Figure identification: 1-upper furnace body; 11-first cement layer; 2-lower furnace body; 21-second cement layer; 22-disassembly mold; 3-furnace lining material; 4-coil; 41-coil lead-out; 42-mounting plate; 5-relay; 6-middle connecting plate; 7-water-cooling cable; 8-fastening bolts. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", "third", "fourth", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] Example 1

[0024] This embodiment provides a medium frequency induction furnace, such as Figure 1 As shown, it includes an upper furnace body 1 and a lower furnace body 2, which are detachably connected and internally enclose a cavity for accommodating a furnace lining material 3; a coil 4 is sleeved on the outer side of the furnace lining material 3, and the coil 4 is integrally formed with a coil lead 41; the coil lead 41 is connected to a water-cooling cable 7 via an intermediate connecting plate 6.

[0025] Working principle: when the coil 4 is manufactured, the coil lead 41 is integrally arranged on the coil 4; when installing, the integrated coil 4 is directly loaded into the lower furnace body 2, and after the lower furnace body 2 is assembled, the upper furnace body 1 is connected to the lower furnace body 2, and then the coil lead 41 is connected to the water-cooling cable 7 through the intermediate connecting plate 6, and then the furnace lining material 3 is sleeved into the inside of the coil 4 to form a complete medium-frequency induction furnace; when disassembling, the furnace lining material 3 is first taken out, and after the upper furnace body 1 is removed from the lower furnace body 2, the intermediate connecting plate 6 is removed to take out the coil 4, and then when disassembling and assembling on site, there is no need to weld or desolder the coil lead 41, which greatly shortens the operation time of the coil. At the same time, since the coil lead 41 is integrated with the coil 4 and does not need to be disassembled, when disassembling and reinstalling, there is no need to re-wrap the insulating tape and apply insulating paint on the welding point, which improves the convenience of operation, that is, simplifies the disassembly and assembly process and reduces the difficulty of construction to avoid potential problems caused by welding the coil lead.

[0026] In this embodiment, if Figure 1 As shown, the coil 4 is arranged at the lower part of the cavity and is located in the lower furnace body 2, that is, when the coil is manufactured, the outer dimensions are controlled within the range of the lower furnace body.

[0027] In this embodiment, if Figure 1 As shown, the outer side of the coil 4 is provided with a relay 5 for magnetic conduction and fastening, so as to reduce the possibility of magnetic field leakage and improve the stability of the coil.

[0028] In this embodiment, if Figure 2 As shown, the coil lead-out 41 is provided with a mounting plate 42 and is bolted to the intermediate connecting plate 6 via the mounting plate 42. That is, after the coil 4 is assembled to the lower furnace body 2, the intermediate connecting plate 6 is bolted to the mounting plate 42. Since the water-cooling cable 7 has been connected to the intermediate connecting plate 6 in its initial state, the connection between the water-cooling cable 7 and the coil lead-out 41 can be completed more quickly during installation.

[0029] In this embodiment, if Figure 1 As shown, a first cement layer 11 is provided on the inner side of the upper furnace body 1 , and the first cement layer 11 is used to improve the stability and heat preservation capacity of the upper furnace body 1 .

[0030] In this embodiment, if Figure 1 As shown, a second cement layer 21 is provided at the bottom of the lower furnace body 2, and the second cement layer 21 is provided at the bottom of the interior of the lower furnace body 2, that is, the second cement layer 21 is used to support the furnace lining material, that is, the second cement layer and the first cement layer 11 of the upper furnace body 1 form a cavity for accommodating the furnace lining material, and are also used to support the placement of the coil 4.

[0031] In this embodiment, if Figure 1As shown, the second cement layer 21 is penetrated by a disassembly mold 22 for disassembling the furnace lining material 3. The furnace lining material 3 can be taken out from the cavity of the lower furnace body through the disassembly mold 22, and then the upper furnace body 1 can be disassembled, and then the middle connecting plate 6 can be disconnected to take out the integrated coil 4.

[0032] In this embodiment, if Figure 1 As shown, the upper furnace body 1 and the lower furnace body 2 are bolted together by fastening bolts 8, which is one of the detachable connection methods. This embodiment is not limited to bolt connection, and can be a snap connection or other methods.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A medium frequency induction furnace, characterized in that: The invention comprises an upper furnace body (1) and a lower furnace body (2), wherein the upper furnace body (1) and the lower furnace body (2) are detachably connected and the interior of the furnace body forms a cavity for accommodating a furnace lining material (3); a coil (4) is sleeved on the outer side of the furnace lining material (3), and the coil (4) is integrally formed with a coil lead (41); the coil lead (41) is connected to a water-cooling cable (7) via an intermediate connecting plate (6).

2. A medium frequency induction furnace according to claim 1, characterized in that: The coil (4) is arranged at the lower part of the cavity and is located inside the lower furnace body (2).

3. A medium frequency induction furnace according to claim 2, characterized in that: The outer side of the coil (4) is sleeved with a relay iron (5) for magnetic conduction and fastening.

4. A medium frequency induction furnace according to claim 1, characterized in that: The coil lead (41) is provided with a mounting plate (42) and is bolted to the middle connecting plate (6) via the mounting plate (42).

5. The medium frequency induction furnace according to claim 1, characterized in that: A first cement layer (11) is provided on the inner side of the upper furnace body (1).

6. A medium frequency induction furnace according to claim 1, characterized in that: A second cement layer (21) is provided at the bottom of the lower furnace body (2).

7. A medium frequency induction furnace according to claim 6, characterized in that: The second cement layer (21) is penetrated by a disassembly mold (22) for disassembling the furnace lining material (3).

8. The medium frequency induction furnace according to claim 1, characterized in that: The upper furnace body (1) and the lower furnace body (2) are bolted together via fastening bolts (8).

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