Intermediate frequency furnace mouth pressing plate with protection structure

By designing a protective pressure plate for the induction furnace opening, and adopting a sliding connection and limiting structure, the problems of induction coil cracking and quartz sand lining damage during the smelting process of the induction furnace are solved. This enables easy installation and quick replacement of the pressure plate, reducing maintenance difficulty and material waste.

CN224455377UActive Publication Date: 2026-07-03ANHUI CONCH KAWASAKI EQUIP MFG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI CONCH KAWASAKI EQUIP MFG
Filing Date
2025-07-04
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

During the smelting process of the medium frequency furnace, electromagnetic induction force causes the induction coil to crack and the quartz sand furnace lining to be damaged, resulting in material waste and inconvenience in maintenance. The existing furnace mouth pressure plate structure is too simple and needs to be replaced as a whole.

Method used

A protective structure for the furnace mouth of a medium-frequency furnace has been designed. It adopts a sliding connection and limiting structure, including an assembled pressure plate, a sliding groove, a limiting rod, and bolt connections, which simplifies the installation and maintenance process.

Benefits of technology

It enables easy installation and quick replacement of the assembled pressure plate, reduces material waste, improves maintenance efficiency, and reduces maintenance difficulty.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a medium frequency furnace furnace mouth pressing plate with protection structure relates to medium frequency furnace technical field. The inside slide connection of fixed structure top has the assembling pressing plate, the inside plug connection of assembling pressing plate top has the limiting structure, the fixed structure includes fixed base plate, the outer wall of fixed base plate top is equipped with fixed groove, the outer wall of fixed groove left and right sides is equipped with sliding slot, and the design of sliding slot and sliding plate makes the installation process of assembling pressing plate more convenient. Through the outer wall of sliding plate both sides alignment inside of sliding slot, then from the opening of pressing plate force pressing plate inserts inside of fixed groove, and sliding plate slides in the inside of sliding slot, can complete the installation of assembling pressing plate. Compared with other complex connecting mode, the operation is more simple and quick, and also is convenient for subsequent maintenance and replacement assembling pressing plate, and if force pressing plate appears damage, only needs to replace the damaged force pressing plate alone.
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Description

Technical Field

[0001] This utility model relates to the field of medium-frequency furnace technology, and in particular to a medium-frequency furnace opening pressure plate with a protective structure. Background Technology

[0002] In current technologies, medium-frequency furnaces typically generate significant electromagnetic induction forces during the electrified smelting process, resulting in substantial vertical lifting forces. Under the continuous action of these forces, the induction coil is at risk of tearing or damage, potentially leading to water leakage. Simultaneously, the quartz sand lining can be damaged, potentially causing molten steel to leak out of the furnace, severely impacting the lifespan of the medium-frequency furnace equipment and lining, and increasing smelting safety risks.

[0003] However, existing technologies still have shortcomings, such as the following:

[0004] Currently, the structure of the pressure plate at the furnace opening of an intermediate frequency furnace is relatively simple. During installation, it is usually fixed to the furnace opening with bolts. However, when the pressure plate is damaged, the entire pressure plate often needs to be replaced, which not only wastes materials but also brings many inconveniences to maintenance and disassembly. Utility Model Content

[0005] This utility model provides a pressure plate for the furnace mouth of a medium-frequency furnace with a protective structure to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A medium-frequency furnace opening pressure plate with a protective structure includes an assembled pressure plate slidably connected to the inner side of the top of a fixed structure, a limiting structure inserted into the inner side of the top of the assembled pressure plate, and the fixed structure including a fixed base.

[0008] The outer wall of the top of the fixed chassis is provided with a fixing groove, and the outer walls on the left and right sides of the fixing groove are provided with sliding grooves;

[0009] A fixing hole is provided at the bottom of the inner side of the fixing groove, and a bolt is inserted into the inner side of the fixing hole.

[0010] Preferably, the assembly pressure plate includes a load-bearing pressure plate, and a sliding plate is fixedly connected to the bottom of the load-bearing pressure plate. The outer walls on both sides of the sliding plate are slidably connected to the inner side of the sliding groove.

[0011] Preferably, the outer wall of the fixing groove on the outer side is provided with a heat dissipation hole, which is used to dissipate heat to the inner side of the fixing groove.

[0012] Preferably, a limiting hole is provided at the bottom of the inner side of the fixing groove, and the outer wall of the inner side of the limiting hole has a moving thread.

[0013] Preferably, both the outer wall of the sliding plate and the outer wall of the pressure plate are provided with placement holes, and the placement holes of the sliding plate and the pressure plate are aligned together.

[0014] Preferably, the limiting structure includes a limiting rod, with rotating grooves on the left and right sides of the top of the limiting rod, and a threaded post fixedly connected to the outer wall of the bottom of the limiting rod.

[0015] In summary, this technical solution has the following main advantages:

[0016] The design of the sliding groove and sliding plate simplifies the installation process of the assembly pressure plate. By aligning the outer walls of both sides of the sliding plate with the inner side of the sliding groove, and then inserting the load-bearing pressure plate into the fixing groove through the opening of the pressure plate, the sliding plate slides within the sliding groove, thus completing the installation of the assembly pressure plate. Compared to other complex connection methods, this sliding connection method is simpler and faster to operate, and also facilitates subsequent maintenance and replacement of the assembly pressure plate. Furthermore, if the load-bearing pressure plate is damaged, only the damaged load-bearing pressure plate needs to be replaced. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the limiting hole structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the assembled pressure plate structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the limiting structure of this utility model.

[0021] In the diagram: 1. Fixed structure; 11. Fixed chassis; 12. Fixed groove; 13. Heat dissipation hole; 14. Limiting hole; 15. Sliding groove; 16. Fixed hole; 17. Bolt; 2. Assembled pressure plate; 21. Load-bearing pressure plate; 22. Sliding plate; 23. Placement hole; 3. Limiting structure; 31. Limiting rod; 32. Rotating groove; 33. Threaded column. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0023] like Figure 1 - Figure 4 As shown, a medium-frequency furnace opening pressure plate with a protective structure includes an assembled pressure plate 2 slidably connected to the inner side of the top of a fixed structure 1, a limiting structure 3 inserted into the inner side of the top of the assembled pressure plate 2, and the fixed structure 1 including a fixed base 11.

[0024] The outer wall of the top of the fixed chassis 11 is provided with a fixing groove 12, and the outer walls on the left and right sides of the fixing groove 12 are provided with sliding grooves 15.

[0025] A fixing hole 16 is provided at the bottom of the inner side of the fixing groove 12, and a bolt 17 is inserted into the inner side of the fixing hole 16.

[0026] It should be noted that in this embodiment, when installing the fixed structure 1, the fixed base 11 is first placed at the position of the induction furnace opening, and then the bolts 17 are inserted into the inside of the fixed hole 16 and fixed on the induction furnace opening. Then the assembly plate 2 is assembled.

[0027] The assembly pressure plate 2 includes a force-bearing pressure plate 21. The bottom of the force-bearing pressure plate 21 is fixedly connected to a sliding plate 22. The outer walls on both sides of the sliding plate 22 are slidably connected to the inner side of the sliding groove 15. The outer wall of the outer side of the fixed groove 12 is provided with a heat dissipation hole 13. The heat dissipation hole 13 is used to dissipate heat to the inner side of the fixed groove 12. The bottom of the inner side of the fixed groove 12 is provided with a limit hole 14. The outer wall of the inner side of the limit hole 14 is provided with a moving thread.

[0028] It should be noted that, in this embodiment, when assembling the assembly pressure plate 2, the outer walls of the left and right sides of the sliding plate 22 are aligned with the inner side of the sliding groove 15, and then the pressure plate 21 is inserted into the inner side of the fixing groove 12 through the opening of the pressure plate, so that the sliding plate 22 slides in the inner side of the sliding groove 15, thereby completing the installation of the assembly pressure plate 2. After the assembly pressure plate 2 is installed, the top of the inner side of the fixing groove 12 has the sliding plate 22, and the heat dissipation hole 13 facilitates heat dissipation inside the fixing groove 12.

[0029] The outer wall of the sliding plate 22 and the outer wall of the pressure plate 21 are both provided with placement holes 23. The placement holes 23 of the sliding plate 22 and the pressure plate 21 are aligned together. The limiting structure 3 includes a limiting rod 31. Rotating grooves 32 are provided on the left and right sides of the top of the limiting rod 31. A threaded post 33 is fixedly connected to the outer wall of the bottom of the limiting rod 31.

[0030] It should be noted that, in this embodiment, when assembling the assembly pressure plate 2, the placement hole 23 of the force-bearing pressure plate 21 and the sliding plate 22 is moved to the upper surface of the limiting hole 14, and then the bottom of the limiting rod 31 is passed through the placement hole 23, so that the threaded post 33 is threadedly connected to the inner side of the limiting hole 14, thereby limiting the assembly pressure plate 2 and preventing it from sliding out from the inner side of the fixing groove 12 when it is hit.

[0031] The working principle of this utility model is as follows: When installing the fixed structure 1, first place the fixed base plate 11 at the position of the induction furnace opening, then insert the bolts 17 into the inside of the fixed holes 16, and fix the bolts 17 to the induction furnace opening, and then assemble the assembly pressure plate 2.

[0032] When assembling the assembly pressure plate 2, align the outer walls of the left and right sides of the sliding plate 22 with the inner side of the sliding groove 15. Then, insert the pressure plate 21 into the inner side of the fixing groove 12 through the opening of the pressure plate, allowing the sliding plate 22 to slide within the sliding groove 15, thereby completing the installation of the assembly pressure plate 2. After the assembly pressure plate 2 is installed, the sliding plate 22 is positioned at the top of the inner side of the fixing groove 12, and the ventilation holes 13 facilitate heat dissipation within the fixing groove 12.

[0033] When assembling the assembly pressure plate 2, the placement hole 23 of the force-bearing pressure plate 21 and the sliding plate 22 is moved to the upper surface of the limiting hole 14. Then, the bottom of the limiting rod 31 is passed through the placement hole 23, and the threaded post 33 is threadedly connected to the inner side of the limiting hole 14, thereby limiting the assembly pressure plate 2 and preventing it from sliding out from the inner side of the fixing groove 12 when it is hit.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pressure plate for the opening of a medium-frequency furnace with a protective structure, comprising a fixed structure (1) with an assembled pressure plate (2) slidably connected to the inner side of its top, wherein a limiting structure (3) is inserted into the inner side of the top of the assembled pressure plate (2), characterized in that: The fixed structure (1) includes a fixed chassis (11); The outer wall of the top of the fixed chassis (11) is provided with a fixing groove (12), and the outer walls on the left and right sides of the fixing groove (12) are provided with sliding grooves (15). A fixing hole (16) is provided at the bottom of the inner side of the fixing groove (12), and a bolt (17) is inserted into the inner side of the fixing hole (16).

2. The furnace mouth pressing plate with protective structure of the intermediate frequency furnace according to claim 1, characterized in that: The assembly pressure plate (2) includes a force-bearing pressure plate (21), and a sliding plate (22) is fixedly connected to the bottom of the force-bearing pressure plate (21). The outer walls on both sides of the sliding plate (22) are slidably connected to the inner side of the sliding groove (15).

3. The furnace mouth pressing plate with protective structure of the intermediate frequency furnace according to claim 1, characterized in that: The outer wall of the fixing groove (12) on the outer side is provided with a heat dissipation hole (13), which is used to dissipate heat from the inside of the fixing groove (12).

4. The furnace mouth pressing plate with protective structure of the intermediate frequency furnace according to claim 1, characterized in that: A limiting hole (14) is provided at the bottom of the inner side of the fixing groove (12), and the outer wall of the inner side of the limiting hole (14) has a moving thread.

5. The furnace mouth pressing plate with protective structure of the intermediate frequency furnace according to claim 2, characterized in that: The outer wall of the sliding plate (22) and the outer wall of the pressure plate (21) are both provided with placement holes (23), and the placement holes (23) of the sliding plate (22) and the pressure plate (21) are aligned together.

6. The furnace mouth pressing plate with protective structure of the intermediate frequency furnace according to claim 1, characterized in that: The limiting structure (3) includes a limiting rod (31), with rotating grooves (32) on the left and right sides of the top of the limiting rod (31), and a threaded column (33) fixedly connected to the outer wall of the bottom of the limiting rod (31).