High-efficiency waste-removing intermediate frequency steel shell furnace

Abstract

This utility model relates to the field of medium-frequency steel shell furnace technology, specifically disclosing a high-efficiency waste-removing medium-frequency steel shell furnace, including a medium-frequency steel shell furnace body, an installation cylinder on the outside of the medium-frequency steel shell furnace body, a first motor installed at the upper end of the installation cylinder, a guide groove on the side of the installation cylinder, and a connecting rod inserted in the guide groove; this utility model achieves automatic waste retrieval and screening through a dual-motor linkage design (the first motor drives the filter cover to move up and down and in an arc, and the second motor drives the filter cover to rotate), which greatly improves efficiency compared to traditional rake cleaning, and the high-speed rotation centrifugal force of the filter cover enhances the separation effect of waste and molten liquid, the baffle plate accurately intercepts waste, preventing slag from falling back into the furnace when the filter cover moves upward, the limit cover protects the second motor from the high-temperature environment, extends the equipment life, automation reduces manual intervention, reduces the risk of high-temperature operation, and improves continuous production capacity.

Description

Technical Field

[0001] This utility model relates to the field of medium-frequency steel shell furnace technology, and in particular to a high-efficiency waste removal type medium-frequency steel shell furnace. Background Technology

[0002] A medium-frequency steel shell furnace is a device that holds metal materials to be heated and melted in a crucible, with coils wound around the outside of the crucible, and uses the electromagnetic induction principle of the coils to heat and melt the materials.

[0003] The existing Chinese patent application number 202321958597.1 discloses a medium-frequency induction steel shell furnace, including a furnace body support, a furnace body top plate hinged to the top of the furnace body support, a tilting drive cylinder at the bottom of the furnace body top plate, a crucible inside the furnace body support, the crucible fixedly installed at the bottom of the furnace body top plate, an electromagnetic induction coil on the outside of the crucible, a magnetic yoke on the outside of the electromagnetic induction coil, one side of the furnace body top plate hinged to the top of the furnace body support, and a slag removal structure on the top of the other side, a liquid flow channel on the top of the furnace body top plate near the side of the furnace body top plate that is hinged to the furnace body support, the slag removal structure including a first bracket fixed to the top of the furnace body top plate, a connecting rod driven by a rotation drive mechanism on the first bracket, a slag removal rake driven by a rake drive mechanism rotatably mounted on the end of the connecting rod away from the first bracket, a tilting drive structure for driving the furnace body to tilt at the bottom of the furnace body support, and a rotatable smoke extraction structure at the top of the furnace body top plate.

[0004] While the above-mentioned technology achieves a certain degree of slag cleaning effect through the rake drive mechanism, its cleaning efficiency is weak in actual use, and the slag removed is still located at the furnace opening, making it inconvenient for personnel to clean. Therefore, in order to solve the above-mentioned technical defects, we propose a high-efficiency waste removal medium-frequency steel shell furnace. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high-efficiency waste removal type medium-frequency steel shell furnace.

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

[0007] A high-efficiency waste-removing medium-frequency steel shell furnace includes a medium-frequency steel shell furnace body. An installation cylinder is provided on the outside of the medium-frequency steel shell furnace body. A first motor is installed at the upper end of the installation cylinder. A guide groove is opened on the side of the installation cylinder. A connecting rod is inserted in the guide groove. One end of the connecting rod inside the installation cylinder is connected to a threaded rod. The upper end of the threaded rod is connected to the first motor. A linkage plate is connected to the other end of the connecting rod outside the installation cylinder. A second motor is provided at the end of the linkage plate away from the connecting rod. A linkage shaft is connected to the output end of the second motor. A set of filter covers is symmetrically provided at the lower end of the linkage shaft. A baffle plate is provided at the lower end of the opening of the filter cover.

[0008] Preferably, a limit cover is fixed at the end of the linkage plate away from the linkage rod, the second motor is mounted on the upper surface of the limit cover, and the upper end of the linkage shaft is rotatably mounted in the middle of the limit cover.

[0009] Preferably, the inner side of the lower end of the limiting cover is provided with a matching slot corresponding to the upper end of the medium-frequency steel shell furnace body, and the upper surface of the limiting cover is provided with a matching mounting seat corresponding to the second motor.

[0010] Preferably, the middle part of the two filter covers is cylindrical and has a mounting groove, and the lower end of the linkage shaft is installed in the mounting groove by a pin.

[0011] Preferably, the lower end of the filter cover and the side away from the barrier plate are provided with an inclined guide surface, and the outer surface of the filter cover is a smooth surface.

[0012] Preferably, the end of the linkage plate near the linkage rod is annular, and the annular end of the linkage plate is sleeved on the outer ring surface of the mounting cylinder.

[0013] Preferably, the upper and lower ends of the guide groove are located on both sides of the mounting cylinder and are vertically arranged, and the middle part of the guide groove is arc-shaped.

[0014] The present invention proposes a high-efficiency waste removal type medium-frequency steel shell furnace, which has the following advantages:

[0015] 1. In this utility model, the filter cover is located inside the furnace opening at the upper end of the main body of the medium-frequency steel shell furnace, and the baffle plate set at the lower end of the filter cover is located below the surface of the furnace liquid, while the part of the filter cover not covered by the baffle plate is located above the surface of the furnace liquid. At this time, as the filter cover rotates, the slag adheres to the surface of the filter cover. Subsequently, the filter cover moves upward, so that the slag is gradually collected in the space formed by the filter cover and the baffle plate. In summary, this solution achieves automatic retrieval and screening of waste through a dual-motor linkage design (the first motor drives the filter cover to move up and down and in an arc, and the second motor drives the filter cover to rotate), which greatly improves efficiency compared with the traditional rake cleaning method. The high-speed rotation centrifugal force of the filter cover enhances the separation effect of waste and molten liquid. The baffle plate accurately intercepts the waste, preventing the slag from falling back into the furnace when the filter cover moves upward. The limit cover protects the second motor from the high-temperature environment, extending the service life of the equipment. Automation reduces manual intervention, reduces the risk of high-temperature operation, and improves continuous production capacity.

[0016] 2. The limiting cover in this utility model allows the filter cover to be fitted onto the upper part of the medium-frequency steel shell furnace body when slag is being retrieved and filtered inside the furnace body. This prevents slag or molten furnace liquid from splashing to the outside, ensuring the safety of the equipment during operation and avoiding material waste. It also improves the stability of the filter cover during operation. The mounting base facilitates the installation of the second motor and provides some insulation against the heat of the molten furnace liquid inside the furnace body, reducing the adverse effects of the high-temperature molten furnace liquid on the second motor. The mounting groove facilitates the installation and disassembly of the filter cover and the linkage shaft, allowing personnel to easily remove the filter cover and clean the accumulated slag when too much slag accumulates inside. Attached Figure Description

[0017] Figure 1 This is an isometric schematic diagram of a high-efficiency waste removal type medium-frequency steel shell furnace proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of a high-efficiency waste removal type medium-frequency steel shell furnace proposed in this utility model;

[0019] Figure 3 This is a schematic diagram of the combination of a filter cover and a baffle plate in a high-efficiency waste removal medium-frequency steel shell furnace proposed in this utility model.

[0020] Figure 4 This is a schematic diagram of slag transfer in a high-efficiency waste removal medium-frequency steel shell furnace proposed in this utility model.

[0021] In the diagram: 1. Main body of medium-frequency steel shell furnace; 2. Mounting cylinder; 3. First motor; 4. Guide groove; 5. Linkage rod; 6. Threaded rod; 7. Linkage plate; 8. Second motor; 9. Linkage shaft; 10. Filter cover; 11. Barrier plate; 12. Limit cover. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Example 1

[0024] Reference Figure 1-4 A high-efficiency waste screening medium-frequency steel shell furnace includes a medium-frequency steel shell furnace body 1. An installation cylinder 2 is provided on the outside of the medium-frequency steel shell furnace body 1. A first motor 3 is installed at the upper end of the installation cylinder 2. A guide groove 4 is opened on the side of the installation cylinder 2. A connecting rod 5 is inserted into the guide groove 4. A threaded rod 6 is connected to one end of the connecting rod 5 inside the installation cylinder 2. The upper end of the threaded rod 6 is connected to the first motor 3. A linkage plate 7 is connected to one end of the connecting rod 5 outside the installation cylinder 2. A second motor 8 is provided at the end of the linkage plate 7 away from the connecting rod 5. A linkage shaft 9 is connected to the output end of the second motor 8. A set of filter covers 10 is symmetrically provided at the lower end of the linkage shaft 9. A baffle plate 11 is provided at the lower end of the opening of the filter cover 10.

[0025] Example 2

[0026] Reference Figure 1-4 While all other parts are the same as in Example 1, the difference between this example and Example 1 is that:

[0027] A limit cover 12 is fixed to the end of the linkage plate 7 away from the linkage rod 5. The second motor 8 is installed on the upper surface of the limit cover 12. The upper end of the linkage shaft 9 is rotatably installed in the middle of the limit cover 12. The inner side of the lower end of the limit cover 12 is provided with a matching groove corresponding to the upper end of the medium-frequency steel shell furnace body 1. The upper surface of the limit cover 12 is provided with a matching mounting seat corresponding to the second motor 8. The setting of the limit cover 12 allows the limit cover 12 to be fitted onto the upper end of the medium-frequency steel shell furnace body 1 when the filter cover 10 is used for slag retrieval and filtration inside the medium-frequency steel shell furnace body 1, thereby preventing slag or stirred-up furnace liquid from splashing to the outside, thus ensuring the safety of the equipment during operation and preventing... The waste of materials also improves the stability of the filter cover 10 during operation. At the same time, the setting of the mounting base facilitates the installation of the second motor 8 and also facilitates a certain degree of isolation of the heat of the furnace liquid in the medium frequency steel shell furnace body 1, thereby reducing the adverse effects of the high temperature furnace liquid on the second motor 8. The middle part of the two filter covers 10 is cylindrical and has a mounting groove. The lower end of the linkage shaft 9 is installed in the mounting groove by a pin. The setting of the mounting groove facilitates the installation and disassembly of the filter cover 10 and the linkage shaft 9. This makes it easy for personnel to remove the filter cover 10 and clean the accumulated slag when there is too much slag inside the filter cover 10.

[0028] The lower end of the filter cover 10, away from the baffle plate 11, is provided with an inclined guide surface. The outer surface of the filter cover 10 is smooth. The guide surface ensures that when the filter cover 10 descends towards the molten metal inside the medium-frequency steel shell furnace body 1, the slag floating on the surface of the molten metal moves away along the guide surface, thus preventing the slag from being pressed under the filter cover 10 and unable to be filtered and retrieved by the filter cover 10. This ensures that the filter cover 10 can properly retrieve the slag. The end of the linkage plate 7 near the linkage rod 5 is annular. The annular end of the moving plate 7 is fitted onto the outer ring surface of the mounting cylinder 2. The annular end of the linkage plate 7 improves the stability of the linkage plate 7 when it moves up and down along the mounting cylinder 2. The upper and lower ends of the guide groove 4 are located on both sides of the mounting cylinder 2 and are set vertically. The middle part of the guide groove 4 is arc-shaped. The setting of the guide groove 4 allows the linkage plate 7 to smoothly drive the filter cover 10 to connect or separate from the upper part of the medium frequency steel shell furnace body 1, thereby facilitating the slag retrieval and cleaning of the slag after retrieval.

[0029] Operating principle and advantages: During use, the guide groove 4 ensures that when the medium-frequency steel shell furnace body 1 is being fed or when slag is not being removed, the linkage plate 7 is located at the upper end of the guide groove 4, that is, the linkage plate 7 is located at the vertical part of the upper end of the guide groove 4 and is far away from the medium-frequency steel shell furnace body 1. At this time, the limiting cover 12 will not block the upper end of the medium-frequency steel shell furnace body 1, which makes it easier for personnel to feed materials into the medium-frequency steel shell furnace body 1 or clean the slag accumulated in the filter cover 10. At the same time, being far away from the medium-frequency steel shell furnace body 1 also reduces the discomfort caused to personnel by the heat emitted by the high-temperature furnace liquid inside the medium-frequency steel shell furnace body 1.

[0030] Further, in the above process, when it is necessary to remove slag, the first motor 3 controls the threaded rod 6 to rotate. When the threaded rod 6 rotates, it pushes the connecting rod 5 downward. That is, the connecting rod 5 rotates and moves downward along the guide groove 4 until the linkage plate 7 moves into the vertical groove at the lower end of the guide groove 4. At this time, as the threaded rod 6 rotates, the linkage plate 7 continues to move downward. Finally, the limiting cover 12 is fitted onto the upper end of the medium-frequency steel shell furnace body 1. At this time, the filter cover 10 is located inside the furnace opening at the upper end of the medium-frequency steel shell furnace body 1, and the blocking plate 11 set at the lower end of the filter cover 10 is located below the surface of the furnace liquid. The part of the filter cover 10 not covered by the blocking plate 11 is located above the surface of the furnace liquid. At this time, as the filter cover 10 rotates, the slag on the surface of the furnace liquid is moved and removed until the slag finally adheres to the surface of the filter cover 10. Then, the linkage plate is controlled. As the filter cover 10 moves upward, the slag and molten metal are gradually collected in the space formed by the filter cover 10 and the baffle plate 11. The molten metal flows back into the medium-frequency steel shell furnace body 1 through the filter holes, thus completing the slag retrieval. In summary, this solution uses a dual-motor linkage design (the first motor 3 drives the filter cover 10 to move up and down and in an arc, and the second motor 8 drives the filter cover 10 to rotate) to achieve automatic retrieval and screening of waste materials. Compared with the traditional rake cleaning, the efficiency is greatly improved. The high-speed rotation centrifugal force of the filter cover 10 enhances the separation effect between waste materials and molten metal. The baffle plate 11 accurately intercepts waste materials, preventing slag from falling back into the furnace when the filter cover 10 moves upward. The limit cover 12 protects the second motor 8 from the high-temperature environment, extending the equipment life. Automation reduces manual intervention, reduces the risk of high-temperature operation, and improves continuous production capacity.

[0031] Furthermore, the setting of the limiting cover 12 allows the filter cover 10 to be fitted onto the upper end of the medium-frequency steel shell furnace body 1 during slag retrieval and filtration inside the furnace body 1. This prevents slag or molten furnace liquid from splashing to the outside, ensuring the safety of the equipment during operation and avoiding material waste. It also improves the stability of the filter cover 10 during operation. The mounting base facilitates the installation of the second motor 8 and provides some insulation against the heat of the molten furnace liquid inside the furnace body 1, reducing the adverse effects of the high-temperature molten furnace liquid on the second motor 8. The mounting groove facilitates the installation and disassembly of the filter cover 10 and the linkage shaft 9, thus facilitating the accumulation of slag inside the filter cover 10. When there is too much slag accumulated, personnel can easily remove the filter cover 10 to clean the slag inside. The guide surface design allows the slag floating on the surface of the molten metal to move away along the guide surface when the filter cover 10 descends towards the molten metal inside the medium-frequency steel shell furnace body 1. This avoids the phenomenon of slag being pressed under the filter cover 10 and unable to be filtered and retrieved by the filter cover 10, thus ensuring the normal slag retrieval by the filter cover 10. The annular design of the linkage plate 7 at one end improves the stability of the linkage plate 7 when it moves up and down along the mounting cylinder 2. The guide groove 4 allows the linkage plate 7 to smoothly drive the filter cover 10 to engage or disengage from the upper part of the medium-frequency steel shell furnace body 1, thereby facilitating the slag retrieval and subsequent cleaning.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-efficiency waste-removing medium-frequency steel shell furnace, comprising a medium-frequency steel shell furnace body (1), characterized in that, The main body (1) of the medium frequency steel shell furnace is provided with an installation cylinder (2) on the outside. A first motor (3) is installed at the upper end of the installation cylinder (2). A guide groove (4) is opened on the side of the installation cylinder (2). A connecting rod (5) is inserted in the guide groove (4). A threaded rod (6) is connected to one end of the connecting rod (5) inside the installation cylinder (2). The upper end of the threaded rod (6) is connected to the first motor (3). A linkage plate (7) is connected to one end of the connecting rod (5) outside the installation cylinder (2). A second motor (8) is provided at one end of the linkage plate (7) away from the connecting rod (5). A linkage shaft (9) is connected to the output end of the second motor (8). A set of filter covers (10) is symmetrically provided at the lower end of the linkage shaft (9). A barrier plate (11) is provided at the lower end of the opening of the filter cover (10).

2. The high-efficiency waste removal type medium-frequency steel shell furnace according to claim 1, characterized in that, The linkage plate (7) is fixed with a limit cover (12) at one end away from the linkage rod (5), the second motor (8) is installed on the upper surface of the limit cover (12), and the upper end of the linkage shaft (9) is rotatably installed in the middle of the limit cover (12).

3. The high-efficiency waste removal type medium-frequency steel shell furnace according to claim 2, characterized in that, The inner side of the lower end of the limiting cover (12) is provided with a matching slot corresponding to the upper end of the medium frequency steel shell furnace body (1), and the upper surface of the limiting cover (12) is provided with a matching mounting seat corresponding to the second motor (8).

4. The high-efficiency waste removal type medium-frequency steel shell furnace according to claim 1, characterized in that, The middle part of the two filter covers (10) is cylindrical and has a mounting groove. The lower end of the linkage shaft (9) is installed in the mounting groove by a pin.

5. The high-efficiency waste removal type medium-frequency steel shell furnace according to claim 1, characterized in that, The filter cover (10) has an inclined guide surface at its lower end and on the side away from the barrier plate (11), and the outer surface of the filter cover (10) is a smooth surface.

6. The high-efficiency waste removal type medium-frequency steel shell furnace according to claim 1, characterized in that, The end of the linkage plate (7) near the linkage rod (5) is annular, and the annular end of the linkage plate (7) is sleeved on the outer ring surface of the mounting cylinder (2).

7. The high-efficiency waste removal type medium-frequency steel shell furnace according to claim 1, characterized in that, The upper and lower ends of the guide groove (4) are located on both sides of the mounting cylinder (2) and are set in a vertical state, and the middle part of the guide groove (4) is arc-shaped.

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