Cyclic heating electric furnace

Abstract

The utility model discloses a circulation heating electric furnace which comprises a shell, the shell is in a two-section type design and is connected through a positioning mechanism, a plurality of circulation channels are arranged on the two-section type shell, a plurality of supporting legs are installed at the bottom of the lower-section shell, a fan assembly is arranged on the lower-section shell in a rotating mode, and the fan assembly is connected with the two-section type shell in a rotating mode. A driving motor connected with the fan assembly is mounted at the bottom of the lower section of the shell, a fixed screen frame is fixedly arranged in the lower section of the shell, an electric heating disc is arranged in the fixed screen frame, a fixed ring is fixedly arranged on the inner wall of the shell, a fixed screen disc is arranged above the fixed ring, and a movable groove is formed in the fixed screen disc. The fan assembly drives hot air flow circulation and the fixed net disc to rotate by 360 degrees, materials are wrapped by dynamic hot flow and heated in a rotating mode at the same time, and heating uniformity is improved compared with a traditional electric furnace.

Description

Technical Field

[0001] This utility model relates to the field of heating equipment technology, and in particular to an electric furnace with circulating heating. Background Technology

[0002] A circulating heating electric furnace is an electric furnace device with circulating heating function. Its core lies in realizing the recycling of heat through specific design to improve heating efficiency, uniformity, or meet specific process requirements.

[0003] Existing circulating heating electric furnaces generally lack material rotation functionality, and the few that do have this function often use independent motor drives, leading to a series of technical drawbacks. From a structural design perspective, independent drives require additional motors, gearboxes, and other transmission components, resulting in a complex internal structure that not only increases assembly difficulty but also reduces the material placement area by occupying furnace space. In terms of energy consumption, the independent operation of the heating and rotation systems results in double energy consumption, and traditional transmission chains experience significant mechanical losses at high temperatures, further reducing energy efficiency. To address these issues, a circulating heating electric furnace is proposed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a circulating heating electric furnace.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An electric furnace with circulating heating includes a shell, which is designed in two sections and connected by a positioning mechanism. Each section of the shell has multiple circulation channels. Multiple support legs are installed at the bottom of the lower section of the shell. A fan assembly is rotatably mounted on the lower section of the shell. A drive motor connected to the fan assembly is installed at the bottom of the lower section of the shell. A fixed mesh frame is fixedly installed inside the lower section of the shell, and an electric heating plate is installed within the fixed mesh frame. A fixed ring is fixedly installed on the inner wall of the shell. A fixed mesh disk is located above the fixed ring. The fixed mesh disk has a movable groove, and a sliding rod is located within the movable groove. A limiting frame is slidably mounted on the sliding rod via an elastic mechanism. A limiting groove corresponding to the limiting frame is provided on the fixed ring. The fixed mesh disk is connected to the fan assembly via a connecting mechanism.

[0007] Preferably, the positioning mechanism includes a positioning rod fixedly mounted on the upper housing section, and a positioning groove corresponding to the positioning rod is provided on the lower housing section.

[0008] Preferably, the elastic mechanism includes a spring sleeved on the outside of the slide bar, with both ends of the spring connected to the inner wall of the movable groove and the outer wall of the limiting frame, respectively.

[0009] Preferably, the connecting mechanism includes a connecting shaft fixedly mounted on the connecting shaft, a drive shaft fixedly mounted on the fan assembly, and a connecting groove corresponding to the connecting shaft at the end of the drive shaft.

[0010] Preferably, all of the multiple circulation channels are U-shaped and are distributed at equal intervals around the circumference of the housing.

[0011] Preferably, the limiting frame is L-shaped, the connecting shaft is a regular hexagonal prism, and the connecting groove is a regular hexagonal groove.

[0012] The beneficial effects of this utility model are:

[0013] 1. The fan assembly drives the hot airflow circulation and the fixed mesh tray to rotate 360°, so that the material is simultaneously wrapped in dynamic heat flow and heated by rotation, which improves the heating uniformity compared with traditional electric furnaces.

[0014] 2. By setting up a U-shaped circulation channel to form a closed-loop airflow system, combined with a two-stage sealed shell, heat loss and energy consumption are reduced, which meets industrial energy-saving standards.

[0015] 3. The two-section shell can be quickly disassembled and assembled via positioning rods and positioning slots, directly exposing core components such as heating plates and fans; the fixed mesh plate can be disassembled without tools via a flexible positioning frame, reducing maintenance time.

[0016] 4. The fan drive shaft and the mesh disk connecting shaft adopt a regular hexagonal rigid transmission, which can realize material rotation without an additional power source, reducing structural complexity and failure rate. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an electric furnace with circulating heating according to the present invention;

[0018] Figure 2 for Figure 1 A schematic diagram of the vertical section structure;

[0019] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A;

[0020] Figure 4 for Figure 2 Enlarged schematic diagram of the structure at point B;

[0021] Figure 5 for Figure 4 A magnified schematic diagram of the structure at point C.

[0022] In the diagram: 1. Housing, 2. Support leg, 3. Drive motor, 4. Circulation channel, 5. Positioning rod, 6. Positioning groove, 7. Fan assembly, 8. Fixed mesh frame, 9. Electric heating plate, 10. Drive shaft, 11. Fixed ring, 12. Fixed mesh plate, 13. Connecting shaft, 14. Connecting groove, 15. Movable groove, 16. Limiting frame, 17. Slide rod, 18. Spring, 19. Limiting groove. Detailed Implementation

[0023] 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.

[0024] Reference Figure 1-5 An electric furnace with circulating heating includes a shell 1. The shell 1 is designed in two sections and connected by a positioning mechanism. Both sections of the shell 1 are provided with multiple circulation channels 4. Multiple support legs 2 are installed at the bottom of the lower section of the shell 1. A fan assembly 7 is rotatably mounted on the lower section of the shell 1. A drive motor 3 connected to the fan assembly 7 is installed at the bottom of the lower section of the shell 1. A fixed mesh frame 8 is fixedly mounted inside the lower section of the shell 1. An electric heating plate 9 is provided inside the fixed mesh frame 8. A fixed ring 11 is fixedly mounted on the inner wall of the shell 1. A fixed mesh plate 12 is provided above the fixed ring 11. The fixed mesh plate 12 is provided with a movable groove 15. A sliding rod 17 is provided in the movable groove 15. A limiting frame 16 is slidably mounted on the sliding rod 17 through an elastic mechanism. A limiting groove 19 corresponding to the limiting frame 16 is provided on the fixed ring 11. The fixed mesh plate 12 is connected to the fan assembly 7 through a connecting mechanism.

[0025] The positioning mechanism includes a positioning rod 5 fixedly mounted on the upper housing 1, and a positioning groove 6 corresponding to the positioning rod 5 on the lower housing 1. After the positioning rod 5 enters the positioning groove 6, a stable connection is achieved between the two housing sections 1, and the two housing sections 1 are sealed together.

[0026] The elastic mechanism includes a spring 18 sleeved on the outside of the slide rod 17. The two ends of the spring 18 are connected to the inner wall of the movable groove 15 and the outer wall of the limiting frame 16, respectively. The elastic potential energy provided by the spring 18 enables the limiting frame 16 to be compressed. The limiting frame 16 is L-shaped. Compressing its vertical part pushes its horizontal part into the limiting groove 19.

[0027] The connecting mechanism includes a connecting shaft 13 fixedly mounted on a connecting shaft 13, and a drive shaft 10 fixedly mounted on the fan assembly 7. The end of the drive shaft 10 has a connecting groove 14 corresponding to the connecting shaft 13. The connecting shaft 13 is a regular hexagonal prism, and the connecting groove 14 is a regular hexagonal slot. This design allows the fixed mesh disk 12 to rotate synchronously when the drive motor 3 drives the fan assembly 7 to rotate, and the fixed mesh disk 12 can be disassembled from the drive shaft 10 by vertical movement.

[0028] The multiple circulation channels 4 are all U-shaped and are evenly spaced circumferentially relative to the housing 1. These circulation channels 4 enable the circulatory flow of air; their specific distribution is shown in the attached diagram.

[0029] Components not specifically described in this utility model are all standard parts and can be purchased from the market. The specific connection methods for each component all employ mature methods from the prior art, and will not be detailed here. Content not described in detail in this specification belongs to prior art known to those skilled in the art.

[0030] When this invention is in use, the electric heating plate 9 heats the air inside the housing 1 after being powered on. The drive motor 3 drives the fan assembly 7 to rotate, pushing the hot air upward to form an upward airflow. The upward airflow returns to the area below the fan assembly 7 through the U-shaped circulation channel 4 on the housing 1, forming a closed-loop airflow circulation of heating, rising, and recirculation, continuously heating the material.

[0031] When the fan assembly 7 rotates, it drives the fixed mesh tray 12 to rotate synchronously through the hexagonal engagement of the drive shaft 10 and the connecting shaft 13. The material on the fixed mesh tray 12 rotates with the tray, achieving 360° uniform heating.

[0032] The upper housing 1 is connected to the positioning groove 6 of the lower housing 1 via the positioning rod 5 to form a sealed structure, which reduces heat loss and facilitates disassembly, loading and unloading of materials and maintenance of internal equipment.

[0033] The limiting bracket 16 in the movable groove 15 can slide on the slide bar 17 and compress the spring 18. Then the horizontal part of the limiting bracket 16 disengages from the limiting groove 19, and the installation and release operation of the fixed mesh plate 12 can be realized. It can be disassembled, cleaned and maintained.

[0034] 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 circulating heated electric furnace comprising a housing (1), characterized in that, The housing (1) is designed in two sections and connected by a positioning mechanism. Both sections of the housing (1) are provided with multiple circulation channels (4). The bottom of the lower section of the housing (1) is equipped with multiple support legs (2). The lower section of the housing (1) is rotatably equipped with a fan assembly (7). The bottom of the lower section of the housing (1) is equipped with a drive motor (3) connected to the fan assembly (7). A fixed mesh frame (8) is fixedly provided inside the lower section of the housing (1). An electric heating plate (9) is provided inside the fixed mesh frame (8). A fixing ring (11) is fixedly provided on the inner wall of the housing (1). A fixing mesh disk (12) is provided above the fixing ring (11). A movable groove (15) is provided on the fixing mesh disk (12). A sliding rod (17) is provided in the movable groove (15). A limiting frame (16) is slidably sleeved on the sliding rod (17) through an elastic mechanism. A limiting groove (19) corresponding to the limiting frame (16) is provided on the fixing ring (11). The fixing mesh disk (12) is connected to the fan assembly (7) through a connecting mechanism.

2. A circulating heated electric furnace as claimed in claim 1, wherein The positioning mechanism includes a positioning rod (5) fixedly mounted on the upper housing (1), and a positioning groove (6) corresponding to the positioning rod (5) is provided on the lower housing (1).

3. A circulating heated electric furnace as claimed in claim 2, wherein The elastic mechanism includes a spring (18) sleeved on the outside of the slide bar (17), with the two ends of the spring (18) connected to the inner wall of the movable groove (15) and the outer wall of the limiting frame (16), respectively.

4. A circulating heated electric furnace as claimed in claim 3, wherein The connecting mechanism includes a connecting shaft (13) fixedly mounted on the connecting shaft (13), a drive shaft (10) fixedly mounted on the fan assembly (7), and a connecting groove (14) corresponding to the connecting shaft (13) at the end of the drive shaft (10).

5. A circulating heated electric furnace as claimed in claim 4, wherein The multiple circulation channels (4) are all U-shaped and are distributed at equal intervals around the shell (1).

6. A circulating heated electric furnace as claimed in claim 5, wherein, The limiting frame (16) is L-shaped, the connecting shaft (13) is a regular hexagonal prism, and the connecting groove (14) is a regular hexagonal groove.

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