Detachable electromagnetic induction coil

Abstract

The application relates to a detachable electromagnetic induction coil which comprises a coil and an insulating fixing frame. The coil is composed of multiple upper half circular tubes, lower half circular tubes and connecting plates. The upper half circular tubes and the lower half circular tubes are half circular tubes with the same diameter, and the two ends of the upper half circular tubes and the lower half circular tubes are welded with the connecting plates. The connecting plates are provided with connecting bolt holes. The multiple upper half circular tubes and the lower half circular tubes are connected in a spring shape through the connecting plates in a bolt oblique direction. The insulating fixing frame comprises a first circular insulating material frame, a second circular insulating material frame and multiple insulating material tubes which are uniformly and vertically arranged between the two frames. The insulating material tubes are divided into multiple equal ends. Each segmented part is provided with a joint part which can be connected with each other. The detachable electromagnetic induction coil improves installation convenience, equipment performance and maintenance efficiency through unique structural design, can be quickly adapted to various equipment to complete positioning installation, the segmented joint design of the insulating material tubes supports flexible on-site assembly to shorten the installation period, and allows replacement of only the fault half circular tube module when partial damage occurs.

Description

Technical Field

[0001] This application relates to the field of solid and hazardous waste resource utilization, and in particular to a detachable electromagnetic induction coil. Background Technology

[0002] Currently, the industrial electromagnetic induction heating field commonly uses an integrated coil structure made of a single copper tube. During operation, the object to be heated must be completely placed inside the coil. Taking rotary kilns as an example, these kilns typically have a large diameter and long cylindrical structure. The matching detachable electromagnetic induction coil needs to be axially inserted and fixed from one end of the kiln body. Because the coil is made of a single copper tube, its weight can reach several tons, and strict concentricity must be maintained. The installation process requires large hoisting equipment and lengthy, precise adjustments, resulting in extremely high labor and material costs.

[0003] When the kiln diameter is too large, existing installation techniques can no longer achieve the complete insertion of the coil. More seriously, the integrated coil structure has significant maintenance defects: if the refractory material inside the kiln falls off, causing the cylinder to deform, or if a short circuit occurs in a part of the coil, due to the nesting relationship between the coil and the kiln body, it cannot be disassembled and repaired separately. Often, the entire heating system worth millions of yuan must be scrapped, causing huge economic losses to the enterprise. Utility Model Content

[0004] In view of this, this application proposes a detachable electromagnetic induction coil, the structure of which includes: a coil and an insulating fixing frame;

[0005] The coil includes an upper semi-circular tube, a lower semi-circular tube, and a connecting plate. There are multiple upper semi-circular tubes, which are bent into semi-circular shapes. There are also multiple lower semi-circular tubes, which are bent into semi-circular shapes. The upper and lower semi-circular tubes have the same diameter. Connecting plates are welded to both ends of the upper and lower semi-circular tubes. Connecting bolt holes are provided on the connecting plates. Multiple upper and lower semi-circular tubes are connected obliquely with bolts through the connecting plates to form a spring-shaped coil.

[0006] The insulating fixing frame includes a first circular insulating material frame, a second circular insulating material frame, and multiple insulating material tubes. The multiple insulating material tubes are evenly and vertically arranged between the first circular insulating material frame and the second circular insulating material frame. The insulating material tubes are divided into multiple equal ends, and each segment is provided with a joint part that can be connected to each other.

[0007] In one possible implementation, the upper and lower semicircular pipes are provided with water inlets, and each end of the upper and lower semicircular pipes is provided with at least one water pipe.

[0008] In one possible implementation, the joint includes a first tube and a second tube, the second tube extending into the first tube, and the first and second tubes being provided with matching bolt holes.

[0009] In one possible implementation, in one half-connected upper semi-circular tube and one half-connected lower semi-circular tube at both ends of the coil, the unconnected copper connecting plate of the half-connected upper semi-circular tube serves as the first power interface of the coil, and the unconnected copper connecting plate of the half-connected lower semi-circular tube serves as the second power interface of the coil.

[0010] In one possible implementation, the first power interface is bolted to the power transmission system via bolt holes in the connecting plate, and the second power interface is bolted to the power transmission system via bolt holes in the connecting plate.

[0011] In one possible implementation, the connecting plate is made of a copper alloy.

[0012] In one possible implementation, the water inlet at one end of the upper semicircular pipe is connected to the water inlet at the same end of the lower semicircular pipe by a flexible hose.

[0013] In one possible implementation, the upper and lower semicircular tubes are made of a copper alloy.

[0014] In one possible implementation, the hose is made of a heat-resistant, insulating, flexible material.

[0015] In one possible implementation, mounting bolt holes are evenly provided on the first circular insulating material frame and the second circular insulating material frame.

[0016] The beneficial effects of this utility model are:

[0017] This detachable electromagnetic induction coil, through its unique structural design, significantly improves installation convenience, equipment performance, and maintenance efficiency. The coil employs a spring-like structure where the upper and lower semi-circular tubes are obliquely connected by bolts on a connecting plate. Combined with evenly distributed mounting bolt holes on the insulating bracket, it can be quickly adapted to various electromagnetic induction heating equipment, allowing for positioning and installation without complex adjustments. The segmented joint design of the insulating material tube further supports flexible on-site assembly, greatly shortening the installation cycle.

[0018] The fully detachable design allows for replacement of only the faulty semi-circular tube module when partial coil damage occurs, eliminating the need for complete replacement. The copper alloy connecting plate and semi-circular tube offer excellent anti-aging properties, and combined with the reliable connection of the heat-resistant insulated flexible tubing, effectively extending equipment life and reducing overall maintenance costs.

[0019] Other features and aspects of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0020] The accompanying drawings, which are included in and form part of this specification, illustrate exemplary embodiments, features, and aspects of this application together with the specification and serve to explain the principles of this application.

[0021] Figure 1 This diagram shows the main structure of the detachable electromagnetic induction coil device according to an embodiment of this application.

[0022] Figure 2 This diagram illustrates the structural features of the connecting portion in an embodiment of this application.

[0023] Figure 3 This diagram shows the structure of the hose connection portion according to an embodiment of the present application. Detailed Implementation

[0024] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0025] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model or simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0028] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed description. Those skilled in the art should understand that this application can be implemented without certain specific details. In some instances, methods, means, components, and power sources well known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0029] specifically refer to Figure 1-3The utility model of this application is a detachable electromagnetic induction coil, which is used in the field / equipment for the resource utilization of solid and hazardous waste, and plays a role in achieving convenient installation, efficient heating and low-cost maintenance under complex working conditions. Its structure includes: a coil and an insulating fixing frame; the coil includes an upper semi-circular tube 101, a lower semi-circular tube 102, and a connecting plate 103. There are multiple upper semi-circular tubes, each bent into a semi-circular shape. There are also multiple lower semi-circular tubes, each bent into a semi-circular shape. The upper and lower semi-circular tubes have the same diameter. Connecting plates are welded to both ends of the upper and lower semi-circular tubes. Connecting bolt holes are provided on the connecting plates. Multiple upper and lower semi-circular tubes are connected obliquely by bolts through the connecting plates to form a spring-shaped coil. The insulating fixing frame includes a first circular insulating material frame 104, a second circular insulating material frame 105, and multiple insulating material tubes 106. Multiple insulating material tubes are evenly and vertically arranged between the first and second circular insulating material frames. The insulating material tubes are divided into equal sections, and each section is provided with a connecting part that can be connected to each other. By splitting the coil into a modular structure of semi-circular tubes and connecting plates, and combining it with the segmented design of the insulating fixing frame, it can be quickly assembled in the confined working space of solid and hazardous waste treatment equipment, avoiding the problem of difficult installation of traditional integrated coils; the spring-shaped oblique connection method allows for flexible adjustment of the coil size to adapt to different specifications of treatment equipment.

[0030] In one possible implementation, the upper semicircular tube 101 and the lower semicircular tube 102 are provided with water inlets, and each end of the upper semicircular tube 101 and the lower semicircular tube 102 is provided with at least one water pipe 107. This design can remove the heat generated by the coil during high-frequency heating by circulating cooling water, avoiding the degradation of coil performance due to high temperature, effectively extending the service life, and ensuring the long-term stable operation of the solid and hazardous waste treatment equipment.

[0031] In one possible implementation, the joint includes a first tube 201 and a second tube 202, with the second tube 202 extending into the first tube 201. The first tube 201 and the second tube 202 are provided with matching bolt holes 203. This structure allows the insulating material tubes 106 to be quickly and securely assembled during installation, facilitating adjustments to the bracket length according to site requirements. Disassembly only requires loosening the bolts to quickly separate the faulty section, reducing maintenance difficulty and time costs.

[0032] In one possible implementation, in the upper semicircular tube 101 and the lower semicircular tube 102 connected at both ends of the coil, the unconnected copper connecting plate of the upper semicircular tube 101 serves as the first power interface 301 of the coil, and the unconnected copper connecting plate of the lower semicircular tube 102 serves as the second power interface 302 of the coil. This interface design enables convenient connection between the coil and the power transmission system while ensuring the stability of power conduction; the single-point connection layout simplifies the circuit structure and reduces the risk of short circuits.

[0033] In one possible implementation, the first power interface is bolted to the power transmission system via bolt holes in the connecting plate 103, and the second power interface is bolted to the power transmission system via bolt holes in the connecting plate 103. The bolted connection method facilitates the disassembly and maintenance of the interfaces, allowing for quick disconnection of the power connection during maintenance of the solid and hazardous waste treatment equipment; simultaneously, compared to welding, it effectively avoids contact problems caused by interface oxidation.

[0034] In one possible implementation, the connecting plate 103 is made of a copper alloy. Copper alloys have good electrical conductivity and mechanical strength, which can reduce the resistance at the connection between the connecting plate 103 and the semi-circular tube, thereby reducing power loss; at the same time, they have strong corrosion resistance and can adapt to the complex acid and alkaline environments in the process of treating solid and hazardous waste.

[0035] In one possible implementation, the water inlet at one end of the upper semicircular tube 101 is connected to the water inlet at the same end of the lower semicircular tube 102 by a flexible hose 301. The flexible hose 301 connection provides a flexible connection for the water cooling system, eliminating the need to disassemble the water cooling pipeline during the assembly and disassembly of the semicircular tube; it also buffers vibrations during equipment operation and prevents water pipe connections from loosening and leaking.

[0036] In one possible implementation, the upper semicircular tube 101 and the lower semicircular tube 102 are made of copper alloy. Using copper alloy semicircular tubes ensures that the coil has high conductivity and low heat generation characteristics, improving electromagnetic induction efficiency; its good ductility makes it easy to process into a semicircular structure, and it can still maintain structural strength under high temperature conditions.

[0037] In one possible implementation, the hose 301 is a heat-resistant, insulating, flexible material. This material can withstand the high temperature of the circulating water in the water-cooling system, while also possessing insulating properties to prevent the risk of electrical leakage due to water pipe damage; the flexible material allows the hose 301 to adapt to deformation when the equipment vibrates, avoiding stress damage.

[0038] Optionally, the hose 301 is made of silicone rubber. Specifically, it uses methyl vinyl silicone rubber or fluorosilicone rubber. Methyl vinyl silicone rubber or fluorosilicone rubber has a long-term operating temperature range of -60℃ to 230℃ and can withstand short-term high temperatures of 300℃, making it suitable for cooling systems of high-frequency heating equipment. Its Shore hardness is typically between 40-80A, allowing for free bending and good resilience, effectively buffering equipment vibration. Furthermore, it has excellent ozone resistance and weather resistance, is not prone to aging, and is suitable for the complex chemical environments in solid and hazardous waste treatment. Its very high volume resistivity effectively prevents the risk of leakage.

[0039] Optionally, the hose 301 is made of polytetrafluoroethylene (PTFE) lined hose, with an outer layer of stainless steel braided mesh and an inner layer of PTFE. It can operate continuously at temperatures up to 260°C, withstand instantaneous temperatures up to 300°C, and has an extremely low coefficient of thermal expansion. It is resistant to almost all chemical media and suitable for handling corrosive environments containing hazardous waste. The smooth inner wall reduces fluid resistance, prevents scaling, and extends service life. The outer metal braided layer enhances pressure resistance and provides excellent anti-aging properties.

[0040] Optionally, the hose 301 is made of EPDM rubber, consisting of EPDM rubber and a polyester fiber reinforcing layer. Its cost is lower than that of fluororubber, making it suitable for large-scale industrial applications. It does not hydrolyze under prolonged contact with hot water or steam, maintaining stable physical properties. It is resistant to UV radiation and oxidation. It offers high processing flexibility, allowing for customization of different wall thicknesses and inner diameters to accommodate various equipment interfaces.

[0041] It should be noted that although the above three materials have been used as examples to illustrate the hose 301, those skilled in the art will understand that this application is not limited to these. In fact, users can flexibly set the material of the hose 301 according to their personal preferences and / or actual application scenarios, as long as it meets the requirements of the usage environment.

[0042] In one possible implementation, mounting bolt holes 109 are evenly distributed on the first circular insulating material frame 104 and the second circular insulating material frame 105. The evenly distributed bolt holes 109 can be adapted to solid and hazardous waste treatment equipment of different specifications. By adjusting the bolt fixing position, the precise installation of the fixing frame and the equipment can be achieved; at the same time, it is convenient to replace or adjust the installation angle of the fixing frame in the future.

[0043] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A detachable electromagnetic induction coil, characterized in that, include: Coil, insulating mounting bracket; The coil includes an upper semicircular tube, a lower semicircular tube, and a connecting plate. There are multiple upper semicircular tubes, each bent into a semicircle. There are also multiple lower semicircular tubes, each bent into a semicircle. The upper and lower semicircular tubes have the same diameter. Connecting plates are welded to both ends of the upper and lower semicircular tubes. Connecting bolt holes are provided on the connecting plates. The multiple upper and lower semicircular tubes are obliquely connected by bolts through the connecting plates to form a spring-shaped coil. The insulating fixing frame is used to fix the coil. The insulating fixing frame includes a first circular insulating material frame, a second circular insulating material frame, and a plurality of insulating material tubes. The plurality of insulating material tubes are evenly and vertically arranged between the first circular insulating material frame and the second circular insulating material frame. The insulating material tubes are divided into multiple equal ends, and each segment is provided with a joint portion that can be connected to each other. The inner diameter of the first circular insulating material frame and the second insulating material frame is the outer diameter of the coil.

2. The detachable electromagnetic induction coil according to claim 1, characterized in that, The upper and lower semicircular pipes are provided with water inlets, and each end of the upper and lower semicircular pipes is provided with at least one water pipe.

3. A detachable electromagnetic induction coil according to claim 1, characterized in that, The joint portion includes a first tube and a second tube, the second tube extending into the first tube, and the first tube and the second tube being provided with matching bolt holes.

4. A detachable electromagnetic induction coil according to claim 2, characterized in that, In the upper and lower semicircular tubes at both ends of the coil, the unconnected copper connector of the upper semicircular tube serves as the first power interface of the coil, and the unconnected copper connector of the lower semicircular tube serves as the second power interface of the coil.

5. A detachable electromagnetic induction coil according to claim 3, characterized in that, The first power interface is bolted to the power transmission system via the bolt holes of the connecting plate, and the second power interface is bolted to the power transmission system via the bolt holes of the connecting plate.

6. A detachable electromagnetic induction coil according to claim 1, characterized in that, The connecting plate is made of copper alloy.

7. A detachable electromagnetic induction coil according to claim 3, characterized in that, The water outlet at one end of the upper semicircular tube is connected to the water outlet at the same end of the lower semicircular tube by a flexible hose.

8. A detachable electromagnetic induction coil according to claim 3, characterized in that, The upper and lower semicircular tubes are made of copper alloy.

9. A detachable electromagnetic induction coil according to claim 7, characterized in that, The hose is made of heat-resistant, insulating, flexible material.

10. A detachable electromagnetic induction coil according to claim 1, characterized in that, The first circular insulating material frame and the second circular insulating material frame are evenly provided with mounting bolt holes.

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