A sintering furnace structure

Abstract

This utility model discloses a sintering furnace structure, including a sintering furnace body, a furnace cover, and a circulation mechanism. The furnace cover and circulation mechanism are located at both ends of the sintering furnace body. The furnace cover is provided with a circulation groove. The sintering furnace body is provided with an inner furnace cavity, a heat-insulating furnace ring, a furnace body, and heating devices. The inner furnace cavity is installed inside the heat-insulating furnace ring, which is located inside the furnace body. Several heating devices are installed on the inner wall of the heat-insulating furnace ring. Several cooling gas inlet holes and vacuum exhaust valves are connected to the furnace body. This sintering furnace structure is simple, convenient, and practical. By rotating the rotating plate, the outer circulation hole and the inner circulation hole are staggered and connected to the inner switching hole and the outer switching hole respectively, so as to realize the heat flow in different areas and improve the heating and cooling efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of sintering furnaces, and specifically relates to a sintering furnace structure. Background Technology

[0002] A sintering furnace is a specialized piece of equipment that uses sintering to achieve the desired physical, mechanical properties and microstructure of powder compacts. Sintering furnaces are used to dry the slurry on silicon wafers, remove organic components from the slurry, and complete the sintering of the aluminum back field and grid lines. Traditional sintering furnaces lack heat dissipation devices; therefore, after sintering, the furnace must be allowed to cool naturally. Furthermore, direct heat dissipation is not possible, as rapid heat dissipation would shorten the furnace's lifespan. This results in time-consuming heat dissipation processes and reduced operational efficiency. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a sintering furnace structure that is simple, convenient and practical. By rotating the rotating plate, the outer circulation hole and the inner circulation hole are staggered and connected to the inner switching hole and the outer switching hole respectively, so as to realize the heat flow in different areas and improve the heating and cooling efficiency.

[0004] A sintering furnace structure includes a sintering furnace body, a furnace cover, and a circulation mechanism. The furnace cover and circulation mechanism are located at both ends of the sintering furnace body. A circulation groove is provided on the furnace cover. The sintering furnace body includes an inner furnace cavity, a heat-insulating furnace ring, a furnace body, and heating devices. The inner furnace cavity is installed inside the heat-insulating furnace ring, which is located within the furnace body. Several heating devices are installed on the inner wall of the heat-insulating furnace ring. Several cooling gas inlet holes and vacuum exhaust valves are connected to the furnace body. The circulation mechanism includes a circulation device, a rotating plate, a rotating ring, a circulation ring, a gear, a gear ring, a rotating shaft, a handle, and a partition plate. The circulation ring is connected to the partition plate, and the partition plate is connected to the furnace body. Above, the working end of the circulation device is installed inside the circulation ring. The partition plate has several rings surrounding the circulation ring and arranged in outer and inner circulation holes. The outer and inner circulation holes are respectively connected to the space between the inner furnace cavity and the insulation ring and the space between the insulation ring and the furnace body. The rotating ring is connected to the rotating plate and is sleeved on the circulation ring. The rotating plate is set tightly against the partition plate. The rotating plate has several inner and outer switching holes surrounding the circulation ring. The inner and outer switching holes are respectively engaged with the outer and inner circulation holes. The gear ring is sleeved on the rotating ring and meshes with the gear. One end of the rotating shaft is connected to the handle and the other end passes through the furnace body and meshes with the gear.

[0005] Preferably, the circulation device includes a circulation motor, a power shaft, and a fan wheel. One end of the power shaft is connected to the circulation motor, and the other end passes through the furnace body and is connected to the fan wheel. The fan wheel is arranged within the circulation loop.

[0006] Preferably, the furnace body is provided with an isolation plate and connected to a circulation ring, and the circulation ring has a plurality of circulation holes.

[0007] Preferably, the inner circulation hole is elongated.

[0008] Preferably, couplings are provided on the rotating shaft and the power rotating shaft. Beneficial effects

[0009] (1) A sintering furnace structure of the present invention is simple and convenient to use. By rotating the rotating plate, the outer circulation hole and the inner circulation hole are staggered and connected to the inner switching hole and the outer switching hole respectively, so as to realize the heat flow in different areas and achieve the purpose of improving heating and cooling efficiency.

[0010] (2) A sintering furnace structure of the present invention introduces cooling gas gradually through the cooling gas inlet hole, so that the temperature inside the inner furnace cavity gradually decreases, avoiding the direct opening of the furnace and causing a sharp drop in the furnace temperature or using natural cooling method to cool, thereby improving cooling efficiency and extending the service life of the sintering furnace. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the sintering furnace body;

[0012] Figure 2 This is a schematic diagram of the cross-sectional structure of the sintering furnace body;

[0013] Figure 3 This is a schematic diagram of the circulating mechanism;

[0014] 1-Sintering furnace body, 2-Furnace cover, 3-Circulation mechanism, 31-External circulation hole, 32-Internal circulation hole, 33-Circulation device, 34-Circulation motor, 35-Power shaft, 36-Wind wheel, 37-Rotating plate, 38-Internal switching hole, 39-External switching hole, 310-Rotating ring, 311-Circulation ring, 312-Gear, 313-Gear ring, 314-Rotating shaft, 315-Handle, 316-Isolation plate, 317-Circulation hole, 4-Circulation groove, 5-Inner furnace cavity, 6-Insulating furnace ring, 7-Furnace body. Detailed Implementation

[0015] The embodiments of this utility model are further described below with reference to the accompanying drawings. Example

[0016] like Figures 1 to 3As shown; a sintering furnace structure includes a sintering furnace body 1, a furnace cover 2, and a circulation mechanism 3. The furnace cover 2 and the circulation mechanism 3 are located at both ends of the sintering furnace body 1. A circulation groove 4 is provided on the furnace cover 2. The sintering furnace body 1 is provided with an inner furnace cavity 5, a heat-insulating furnace ring 6, a furnace body 7, and heating devices 8. The inner furnace cavity 5 is installed inside the heat-insulating furnace ring 6, which is located inside the furnace body 7. Several heating devices 8 are installed on the inner wall of the heat-insulating furnace ring 6. Several cooling gas inlet holes and vacuum exhaust valves are connected to the furnace body 7. The circulation mechanism 3 includes a circulation device 33, a rotating plate 37, a rotating ring 310, a circulation ring 311, a gear 312, a gear ring 313, a rotating shaft 314, a handle 315, and a partition plate. The circulation ring 311 is connected to the partition plate, and the partition plate is connected to the furnace body 7. The working end of the circulation device 33 is installed inside the circulation ring 311. The partition plate has several holes arranged around the circulation ring 311, namely an outer circulation hole 31 and an inner circulation hole 32. The outer circulation hole 31 and the inner circulation hole 32 are respectively connected to the inner furnace cavity 5 and the heat preservation furnace ring 6. The space between the furnace ring 6 and the furnace body 7 is connected. The rotating ring 310 is connected to the rotating plate 37 and is sleeved on the circulating ring 311. The rotating plate 37 is set tightly against the partition plate. The rotating plate 37 has a plurality of inner switching holes 38 and outer switching holes 39 arranged around the circulating ring 311. The inner switching holes 38 and outer switching holes 39 respectively cooperate with the outer circulation hole 31 and the inner circulation hole 32. The gear ring 313 is sleeved on the rotating ring 310 and meshes with the gear 312. One end of the rotating shaft 314 is connected to the handle 315 and the other end... The end of the furnace body 7 is connected to the gear 312; the circulation device 33 includes a circulation motor 34, a power shaft 35 and a fan 36. One end of the power shaft 35 is connected to the circulation motor 34 and the other end passes through the furnace body 7 and is connected to the fan 36. The fan 36 is set inside the circulation ring 311; an isolation plate 316 is set inside the furnace body 7 and is connected to the circulation ring 311. Several circulation holes 317 are opened on the circulation ring 311; the inner circulation hole 32 is elongated; a coupling is set on the shaft 314 and the power shaft 35.

[0017] The sintering furnace body 1 is equipped with an inner furnace cavity 5, an insulating furnace ring 6, a furnace body 7, a heating device 8, and a furnace cover 2, which are existing technologies and will not be described in detail here. Specifically, the circulating motor 34 drives the power shaft 35 to rotate, the power shaft 35 drives the impeller 36 to rotate, the control handle 315 rotates, the handle 315 drives the rotating shaft 314 to rotate, the rotating shaft 314 drives the gear 312 to rotate the gear ring 313, the gear ring 313 drives the rotating ring 310 to rotate, and the rotating ring 310 drives the rotating plate 37 to rotate. This makes the outer circulation hole 31 connected to the outer switching hole 39, while the inner circulation hole 32 and the inner switching hole 38 are staggered and closed. Conversely, the outer circulation hole 31 and the outer switching hole 39 are staggered and closed, while the inner circulation hole 32 and the inner switching hole 38 are connected. This allows the airflow in the inner furnace cavity 5 to enter the space between the inner furnace cavity 5 and the insulating furnace ring 6 through the circulation groove 4. In the space between the insulating furnace ring 6 and the furnace body 7, the airflow passes through the outer circulation hole 31 and the outer switching hole 39 or the inner circulation hole 32 and the inner switching hole 38, and finally enters the circulation ring 311 through the circulation hole 317 and then re-enters the inner furnace cavity 5, thus circulating. When the circulating gas circulates through the space between the inner furnace cavity 5 and the insulating furnace ring 6, it mainly heats the material in the inner furnace cavity 5 quickly and evenly. When the circulating gas passes through the space between the insulating furnace ring 6 and the furnace body 7, the cooling gas inlet hole on the furnace body 7 introduces cooling gas to cool the circulating hot gas. The cooled hot gas further reduces the temperature in the inner furnace cavity 5. Finally, the gas is discharged through the vacuum exhaust valve, achieving the purpose of gradual cooling without causing a sharp drop in the temperature inside the sintering furnace body 1 and increasing the cooling rate.

[0018] The specific embodiments of this utility model have been described in detail above, but they are merely examples, and this utility model is not limited to the specific embodiments described above. For those skilled in the art, any equivalent modifications and substitutions to this utility model are also within the scope of this utility model. Therefore, all equivalent changes and modifications made without departing from the spirit and scope of this utility model are covered within the scope of this utility model.

Claims

1. A sintering furnace structure, characterized in that: The furnace includes a sintering furnace body (1), a furnace cover (2), and a circulation mechanism (3). The furnace cover (2) and the circulation mechanism (3) are located at both ends of the sintering furnace body (1). A circulation groove (4) is provided on the furnace cover (2). The sintering furnace body (1) is provided with an inner furnace cavity (5), a heat-insulating furnace ring (6), a furnace body (7), and heating devices (8). The inner furnace cavity (5) is installed inside the heat-insulating furnace ring (6), and the heat-insulating furnace ring (6) is located inside the furnace body (7). Several heating devices (8) are provided. Installed on the inner wall of the heat-insulating furnace ring (6), the furnace body (7) is connected to several cooling gas inlet holes and vacuum exhaust valves; the circulation mechanism (3) includes a circulation device (33), a rotating plate (37), a rotating ring (310), a circulation ring (311), a gear (312), a gear ring (313), a rotating shaft (314), a handle (315), and a partition plate. The circulation ring (311) is connected to the partition plate, and the partition plate is connected to the furnace body (7). The circulation device (33) is installed on the inner wall of the heat-insulating furnace ring (6). The furnace body (7) is connected to several cooling gas inlet holes and vacuum exhaust valves. The ... circulation ring (312), a gear ring (313), a rotating shaft (314), a handle (315), and a partition plate. The circulation device (33) is installed on the inner wall of the heat-insulating furnace ring (6). The furnace body (7) is connected to several cooling gas inlet holes and vacuum exhaust valves. The circulation mechanism (3) includes a circulation device (33), a rotating plate (37), a rotating ring (310), a circulation ring (311), a circulation ring (312), a gear ring (313), a rotating shaft (314), a handle (3 The working end is installed inside the circulation ring (311). The partition plate has several surrounding circulation rings (311) set in the outer circulation hole (31) and the inner circulation hole (32). The outer circulation hole (31) and the inner circulation hole (32) are respectively connected to the space between the inner furnace cavity (5) and the heat preservation furnace ring (6) and the space between the heat preservation furnace ring (6) and the furnace body (7). The rotating ring (310) is connected to the rotating plate (37) and sleeved on the circulation ring (311). The rotating plate (37) is in close contact with the partition. The plate is configured such that the rotating plate (37) has several inner switching holes (38) and outer switching holes (39) arranged around the circulation ring (311). The inner switching holes (38) and outer switching holes (39) are respectively engaged with the outer circulation hole (31) and the inner circulation hole (32). The gear ring (313) is sleeved on the rotating ring (310) and meshes with the gear (312). One end of the rotating shaft (314) is connected to the handle (315) and the other end passes through the furnace body (7) and engages with the gear (312).

2. The sintering furnace structure as described in claim 1, characterized in that: The circulation device (33) includes a circulation motor (34), a power shaft (35) and a blower (36). One end of the power shaft (35) is connected to the circulation motor (34) and the other end passes through the furnace body (7) and is connected to the blower (36). The blower (36) is located in the circulation ring (311).

3. The sintering furnace structure as described in claim 2, characterized in that: The furnace body (7) is provided with an isolation plate (316) and connected to a circulation ring (311), and the circulation ring (311) has a plurality of circulation holes (317).

4. The sintering furnace structure as described in claim 3, characterized in that: The inner circulation hole (32) is elongated.

5. The sintering furnace structure as described in claim 4, characterized in that: Couplings are provided on the rotating shaft (314) and the power rotating shaft (35).

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