A tilting reliable intermediate frequency induction furnace

Abstract

The utility model discloses a kind of reliable medium-frequency induction furnace of tilting, including the furnace body and furnace stand of rotation connection, the furnace body is provided with induction coil and the furnace body is connected with furnace stand by at least one tilting oil cylinder;The induction coil includes leading-out two ends, the leading-out two ends are located in the inclined side of furnace body and the leading-out two ends are electrically connected with two or more water-cooled cables, and, further include at least one fixed component, at least one the fixed component is used to concentrate and fix two or more water-cooled cables.The utility model has the advantages that less space is occupied, it is convenient for staff to pass through operation, reduce the possibility that tilting oil cylinder and flowing medium are heated under the influence of magnetic field and produce fault, improve the reliability of work.

Description

Technical Field

[0001] This utility model relates to the technical field of metal smelting equipment, and in particular to a reliable tilting medium-frequency induction furnace. Background Technology

[0002] A medium-frequency induction furnace is a special smelting equipment with a frequency range of 150–10000 Hz, specifically used for metal smelting. Its working principle is based on the electromagnetic induction effect: a medium-frequency power supply converts three-phase industrial frequency AC power into medium-frequency current through rectification and inversion, which is then transmitted to the induction coil via a water-cooled cable. This generates an alternating magnetic field, causing eddy currents to form inside the metal charge, resulting in rapid heating and melting. Medium-frequency induction furnaces offer advantages such as fast melting speed, high production efficiency, strong electromagnetic stirring, uniform melt composition, convenient operation, strong adaptability, low noise, and low dust, making them an important piece of equipment in modern metallurgical industry that combines high efficiency and flexibility.

[0003] Existing medium-frequency induction furnaces typically consist of a support frame and a furnace body. An induction coil is mounted on the furnace body. When energized, the induction coil generates an alternating magnetic field, heating and melting the charge inside the furnace. A hydraulic cylinder then rotates the furnace body, tilting it to pour out the molten charge. Furthermore, the medium-frequency induction furnace uses water-cooled cables connected to the induction coil leads to supply current. A water circulation system through cooling water pipes removes the heat generated by the furnace body, preventing overheating and ensuring normal operation. However, the layout of the water-cooled cables and cooling water pipes in traditional medium-frequency induction furnaces is cluttered, affecting the cleanliness and aesthetics of the equipment. In particular, the water-cooled cables, which are generally connected to the induction coil leads located directly behind the furnace body (i.e., the angle between the connection point of the water-cooled cable and the induction coil leads and the furnace body's midline is 0°), occupy a significant amount of rear space, hindering worker access. Therefore, some medium-frequency induction furnaces place the two ends of the induction coil on the left or right side of the furnace body. However, since the oil cylinder of the medium-frequency induction furnace is located on the left and right sides of the furnace body, and a magnetic field is generated during the flow of current in the water-cooled cable, placing the two ends of the induction coil on the left or right side of the furnace body brings the distance between the water-cooled cable and the oil cylinder closer. The magnetic field generated by the water-cooled cable can easily affect the nearby oil cylinder, causing the oil cylinder and the flowing medium to heat up and malfunction, affecting the tilting of the furnace body and causing danger.

[0004] How to solve the above problems has become an urgent technical issue. Utility Model Content

[0005] The purpose of this invention is to provide a reliable tilting medium-frequency induction furnace that occupies less space, facilitates worker access and operation, and reduces the possibility of malfunctions caused by magnetic fields heating up the oil cylinder and flowing medium, thereby improving the reliability of furnace tilting.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] This utility model provides a reliable tilting medium-frequency induction furnace, comprising a furnace body and a furnace frame rotatably connected. An induction coil is provided on the furnace body, and the furnace body and the furnace frame are connected by at least one tilting cylinder. The induction coil includes two leads, which are located on the inclined side of the furnace body and electrically connected to two or more water-cooled cables. Furthermore, it also includes at least one fixing component, which is used to centrally fix the two or more water-cooled cables.

[0008] Furthermore, there are two fixing components, which are symmetrically arranged on the left and right sides of the furnace frame and furnace body, respectively for fixing the water-cooled cable and the cooling water pipe.

[0009] Furthermore, the fixing assembly includes an upper fixing fixture and a lower fixing fixture. The upper fixing fixture is fixedly connected to the furnace body, and the lower fixing fixture is fixedly connected to the furnace frame. The water-cooled cable or cooling water pipe is sequentially matched with the upper fixing fixture and the lower fixing fixture.

[0010] Furthermore, the two water-cooled cables are arranged side by side via a fixing assembly.

[0011] Furthermore, the two ends of the lead-out are close to the rear side of the furnace body, and the end of the tilting cylinder connected to the furnace body is close to the front side of the furnace body.

[0012] Furthermore, the angle α between the two leads and the dividing surface of the furnace body is an acute angle.

[0013] Furthermore, the included angle α is 45°, 30°, or 60°.

[0014] Due to the adoption of the above structure, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model places the two ends of the induction coil on the inclined side of the furnace body, so that the rear space of the furnace body is not occupied by the water-cooled cable, which facilitates the passage and operation of the staff. At the same time, compared with placing the two ends of the induction coil on the left or right side of the furnace body, placing the leads on the inclined side of the furnace body can also avoid the situation where the magnetic field generated by the water-cooled cable affects the tilting cylinder due to the water-cooled cable being too close to the tilting cylinder. This reduces the possibility of the tilting cylinder and the flowing medium heating up under the influence of the magnetic field and causing failure, thus ensuring the reliability of the furnace tilting.

[0016] 2. This utility model uses a fixing component to centrally fix two or more water-cooled cables, which can improve the neatness and aesthetics of the water-cooled cables. At the same time, the magnetic fields generated by the two or more water-cooled cables can effectively cancel each other out, further reducing the influence of the magnetic field on the tilting cylinder, thereby improving the reliability of the furnace tilting.

[0017] The present invention will become clearer from the following description and in conjunction with the accompanying drawings, which are used to explain the embodiments of the present invention. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is the left view of the present invention;

[0020] Figure 2 This is a bottom view of the present invention.

[0021] Attached reference numerals: Lead-out ends -1, Water-cooled cable -2, Tilting cylinder -3, Upper fixture -4, Lower fixture -5, Cooling water pipe -6, Furnace body -7, Furnace frame -8. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please refer to Figure 1 and Figure 2 This utility model provides a reliably tilting medium-frequency induction furnace, comprising a furnace body 7 and a furnace frame 8 rotatably connected. An induction coil is provided on the furnace body 7, and the furnace body 7 and the furnace frame 8 are connected by at least one tilting cylinder 3. The induction coil includes two leads 1, which are located on the inclined side of the furnace body 7 and electrically connected to two or more water-cooled cables 2. When the two or more water-cooled cables 2 are electrically connected to a medium-frequency power supply, at least one water-cooled cable 2 is used to input current into the induction coil, and at least another water-cooled power supply is used to output current into the induction coil, thereby forming a circuit. Furthermore, it also includes at least one fixing component, which is used to centrally fix the two or more water-cooled cables 2.

[0024] Since the two leads 1 of the induction coil are located on the inclined side of the furnace body 7, on the one hand, compared with setting the two leads 1 on the rear side of the furnace body 7, setting the two leads 1 on the inclined side of the furnace body 7 can reduce the space occupied by the water-cooled cable 2 on the rear side of the furnace body 7, thereby facilitating the passage and operation of personnel and equipment maintenance; on the other hand, compared with setting the two leads 1 on the left or right side of the furnace body 7, setting the two leads 1 on the inclined side of the furnace body 7 can ensure that there is a certain distance between the water-cooled cable 2 and the tilting cylinder 3, avoiding the magnetic field generated by the water-cooled cable 2 when it is energized from being too close to the tilting cylinder 3, which would affect the tilting cylinder 3, reduce the possibility of the tilting cylinder 3 and the flowing medium heating up under the influence of the magnetic field and causing failure, and ensure the reliability of the tilting of the furnace body 7.

[0025] Furthermore, since the two water-cooled cables 2, the induced magnetic field, and the intermediate frequency power supply form a circuit when connected, with one water-cooled cable 2 used for the input of current in the induction coil and the other water-cooled power supply 2 used for the output of current in the induction coil, the current flow directions inside the two water-cooled cables 2 are opposite. According to Ampere's law, the magnetic fields generated by the two water-cooled cables 2 are in opposite directions. Therefore, by fixing the two water-cooled cables 2 together using the fixing assembly, the clutter of the water-cooled cables 2 can be reduced, improving the neatness and aesthetics of the equipment. At the same time, the magnetic fields generated by the two water-cooled cables 2 can effectively cancel each other out, further reducing the influence of the magnetic field on the water-cooled cables 2 on the tilting cylinder 3, thereby improving the reliability of the tilting cylinder 3. It can also reduce the influence of the magnetic field on the water-cooled cables 2 on metal components such as the furnace body 7, thereby increasing the service life of the equipment.

[0026] Optionally, there are two tilting cylinders 3, which are symmetrically arranged on the left and right sides of the furnace frame 8, and the upper and lower ends of the tilting cylinders 3 are respectively hinged to the furnace frame 8 and the furnace body 7.

[0027] In this utility model, there are two fixing components, which are symmetrically arranged on the left and right sides of the furnace frame 8 and the furnace body 7, respectively, to fix the water-cooled cable 2 and the cooling water pipe 6, thereby further improving the neatness and aesthetics of the equipment. Furthermore, the water-cooled cable 2 and the cooling water pipe 6 are fixed to the left and right sides of the furnace frame 8 by the two fixing components, which can realize the separation of the water circuit and the electrical circuit of the equipment, making the equipment neater, more beautiful and easier to maintain.

[0028] In this utility model, the fixing component includes an upper fixing device 4 and a lower fixing device 5. The upper fixing device 4 is fixedly connected to the furnace body 7, and the lower fixing device 5 is fixedly connected to the furnace frame 8. The water-cooled cable 2 or cooling water pipe 6 is sequentially matched with the upper fixing device 4 and the lower fixing device 5.

[0029] Specifically, the two water-cooled cables 2 are connected to the two leads 1 and extended to a certain distance before being brought together. Then, they are both fixed by the upper fixing device 4. The two water-cooled cables 2 hang down naturally while bending backward and being fixed by the lower fixing device 5. This makes the two water-cooled cables 2 arranged in a neat and beautiful manner, while enhancing the magnetic field cancellation effect between the two water-cooled cables 2.

[0030] Optionally, the upper fixing device 4 and the lower fixing device 5 are pipe clamps, wire clamps, pipe hoops, or wire hoops.

[0031] Optionally, the number of the upper fixing device 4 and / or the lower fixing device 5 can be multiple, and the specific number can be determined according to actual needs.

[0032] In this invention, the two water-cooled cables 2 are arranged side by side by a fixing component, which is neat and beautiful, while ensuring that the internal current and magnetic field of the two water-cooled cables 2 are in opposite directions.

[0033] In this invention, the two leads 1 are located near the rear side of the furnace body 7, and the end of the tilting cylinder 3 connected to the furnace body 7 is located near the front side of the furnace body 7. On one hand, this increases the distance from the two leads 1 to the end of the tilting cylinder 3 connected to the furnace body 7, further reducing the influence of the magnetic field on the water-cooled cable 2 on the tilting cylinder 3; on the other hand, it provides sufficient space for the tilting cylinder 3 to swing, preventing the water-cooled cable 2 from hindering the swing of the tilting cylinder 3.

[0034] In this invention, the included angle α between the two leads 1 and the dividing surface of the furnace body 7 is an acute angle, ensuring that the two leads 1 are located on the oblique side of the furnace body 7.

[0035] Preferably, the included angle α is 45°, 30°, or 60°. It is understood that the included angle α can also be other acute angles.

[0036] Working principle of this utility model:

[0037] Two water-cooled cables 2 have one end electrically connected to the induction coil via two leads 1, and the other end extends a certain distance before being arranged side by side. Both are then fixed by the upper fixing bracket 4, allowing the water-cooled cables 2 to hang naturally while bending backward and being fixed by the lower fixing bracket 5. Finally, they are electrically connected to the intermediate frequency power supply to form a circuit. When the induction coil is energized, it generates an alternating magnetic field, causing eddy currents to form inside the furnace charge 7, rapidly heating and melting it. Furthermore, when current flows through the two water-cooled cables 2, the current flows in opposite directions, generating opposing magnetic fields that effectively cancel each other out. Therefore, this invention saves space, facilitating worker access, operation, and maintenance, and reduces the impact of the magnetic field on the water-cooled cables 2 on the tilting cylinder 3 and other metal components, improving the reliability of equipment operation.

[0038] The preferred embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above. Devices and structures not described in detail herein should be understood as being implemented in a conventional manner within the art. Any person skilled in the art can make many possible variations and modifications to the technical solutions of this utility model using the disclosed methods and techniques, or modify them into equivalent embodiments with equivalent changes, without departing from the scope of the technical solution of this utility model. This does not affect the essential content of this utility model. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the content of the technical solution of this utility model, still fall within the protection scope of the technical solution of this utility model.

Claims

1. A reliably tilting medium-frequency induction furnace, comprising a furnace body (7) and a furnace frame (8) rotatably connected, wherein an induction coil is disposed on the furnace body (7) and the furnace body (7) and the furnace frame (8) are connected by at least one tilting cylinder (3); characterized in that: The induction coil includes two leads (1), which are located on the oblique side of the furnace body (7) and are electrically connected to two or more water-cooled cables (2). It also includes at least one fixing component for centrally fixing the two or more water-cooled cables (2).

2. The tilting-reliable medium-frequency induction furnace according to claim 1, characterized in that: The number of fixing components is two, and the two fixing components are symmetrically arranged on the left and right sides of the furnace frame (8) and the furnace body (7), respectively used to fix the water-cooled cable (2) and the cooling water pipe (6).

3. A reliably tilting medium-frequency induction furnace according to claim 2, characterized in that: The fixing components include an upper fixing fixture (4) and a lower fixing fixture (5). The upper fixing fixture (4) is fixedly connected to the furnace body (7), and the lower fixing fixture (5) is fixedly connected to the furnace frame (8). The water-cooled cable (2) or cooling water pipe (6) is sequentially matched with the upper fixing fixture (4) and the lower fixing fixture (5).

4. A tilting-reliable medium-frequency induction furnace according to any one of claims 1 to 3, characterized in that: The two water-cooled cables (2) are arranged side by side by a fixing assembly.

5. A tilting-reliable medium-frequency induction furnace according to any one of claims 1 to 3, characterized in that: The two leads (1) are close to the rear side of the furnace body (7), and the end of the tilting cylinder (3) connected to the furnace body (7) is close to the front side of the furnace body (7).

6. A tilting-reliable medium-frequency induction furnace according to any one of claims 1 to 3, characterized in that: The angle α between the two ends (1) leading out and the dividing surface of the furnace body (7) is an acute angle.

7. A reliably tilting medium-frequency induction furnace according to claim 6, characterized in that: The included angle α is 45°, 30°, or 60°.

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