Efficient heat dissipation circulating sintering furnace system

By introducing an exhaust box and a heating chamber into the high-temperature sintering furnace, the heat from the combustion chamber flue gas is used to heat the preheating box, and the flue gas is filtered through a filter box, which solves the problems of low heat utilization and poor environmental performance, and achieves efficient heat utilization and improved environmental protection.

CN223795778UActive Publication Date: 2026-01-13SUZHOU MAINTIAN VACUUM FURNACE CO LTD
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Patent Information

Application Number
CN202520435366.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-13
Publication Date
2026-01-13
Estimated Expiration
2035-03-13

AI Technical Summary

Technical Problem

Existing high-temperature sintering furnaces have low heat utilization rates and poor environmental performance. Harmful gases are directly discharged from the flue gas, wasting heat and resulting in low environmental performance.

Method used

A high-efficiency heat dissipation circulating sintering furnace system is designed. By setting up an exhaust box, connecting pipes and a heating chamber, the heat in the flue gas generated in the combustion box is used to heat the preheating box. Combined with a filter box and activated carbon adsorption plate to filter the flue gas, the heat utilization rate is improved and the environmental protection is enhanced.

Benefits of technology

It improves heat utilization efficiency, enhances environmental performance, achieves more efficient heat utilization and environmental protection, and the rational structural design improves the practicality of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an efficient heat dissipation circulating sintering furnace system, relates to the technical field of sintering furnaces, solves the problems that an existing device is low in heat utilization rate and low in environmental protection property, and adopts the following scheme that a combustion box and a preheating box are assembled in a sintering furnace box. Through the arrangement of a wind chamber, a connecting pipe and a heating cavity B, a heating plate heats a combustion box, smoke generated in the combustion box is discharged into the heating cavity B through the wind chamber and the connecting pipe, heat in the smoke heats a preheating box, so that an object to be combusted in the preheating box is preheated, and the utilization rate of the heat is increased; and meanwhile, through the arrangement of a filter box, a wind chamber and an exhaust outlet, the wind chamber sucks smoke into a heating cavity B, then the smoke automatically enters the filter box under the action of pressure, a filter assembly in the filter box adsorbs and filters the smoke, and then the smoke is exhausted through the exhaust outlet, so that the environmental protection property of the device is improved, and the practicability of the device is improved.
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Description

Technical Field

[0001] This utility model relates to the field of sintering furnace technology, specifically to a high-efficiency heat dissipation circulating sintering furnace system. Background Technology

[0002] A high-temperature sintering furnace is a special chemical equipment used for the high-temperature sintering of materials. It is necessary to heat powder compacts to a certain temperature to cause chemical reactions or physical changes. Sintering furnaces are used to dry the slurry on silicon wafers, remove organic components from the slurry, and complete the sintering of aluminum back field and grid lines.

[0003] A search revealed that patent application CN218973225U discloses a high-temperature sintering furnace thermal circulation structure, including a high-temperature sintering furnace with a high-temperature sintering chamber inside. A cooling and preheating chamber is symmetrically arranged on both sides of the high-temperature sintering chamber, and sealed doors are installed on the outer sides of both chambers. An upper mounting box and a lower mounting box are respectively located on the upper and lower sides of the high-temperature sintering furnace. Fans are installed on both sides of the upper mounting box, and a second circulating exhaust pipe is connected to the fan. A circulating air inlet pipe is connected to the upper end of the high-temperature sintering chamber. This design allows for efficient heat utilization and improves the performance of the sintering furnace.

[0004] However, due to the side fan setting, the hot air in the high-temperature sintering chamber is discharged into the cooling and preheating chamber, resulting in long working time for the electric heating element and low heat utilization. At the same time, the flue gas produced by combustion in the high-temperature sintering chamber contains harmful gases, and direct discharge has low environmental performance. The flue gas also has heat, and direct discharge wastes heat, resulting in low structural design rationality.

[0005] Therefore, we propose a high-efficiency heat dissipation circulating sintering furnace system. Utility Model Content

[0006] To address the shortcomings of existing technologies, this invention provides a high-efficiency heat dissipation circulating sintering furnace system, which solves the problems of low heat utilization and low environmental friendliness of existing devices.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a high-efficiency heat dissipation circulating sintering furnace system, including a sintering furnace box, wherein a combustion box and a preheating box are installed inside the sintering furnace box in opposite positions;

[0008] The combustion chamber and preheating chamber are not in contact with the inner wall of the sintering furnace box and are respectively equipped with heating chamber A and heating chamber B. Heating chamber A is equipped with a heating plate of appropriate specifications. An exhaust box with a corresponding position is fixedly installed on the rear side of the sintering furnace box. A flue gas pipe is connected between the exhaust box and the combustion chamber. A connecting pipe is connected between the exhaust box and the heating chamber B. The combustion chamber and preheating chamber are made of thermally conductive material.

[0009] A filter box is fixedly installed on the front side of the sintering furnace box, which is positioned opposite to and connected to the heating chamber B. The filter box is equipped with a filter plate and an activated carbon adsorption plate of the same specifications. A sealed cover is installed on the top surface of the filter box. A connected exhaust port is installed on the right side of the filter box. A sealing frame of the same specifications is installed on the top surface of the heating chamber A and the heating chamber B. A cover plate of the same specifications is installed on the top surface of the combustion box and the preheating box. A handle is fixedly installed on the top surface of the cover plate.

[0010] Preferably, a partition is fixedly installed between the combustion chamber and the preheating chamber to prevent hot gas from leaking into the preheating chamber.

[0011] Preferably, a control box is fixedly installed on the front side of the sintering furnace box, and the front side of the control box is equipped with control buttons and a temperature display screen. A connected temperature measuring instrument is installed in the heating chamber A, which facilitates the adjustment of the temperature in the combustion chamber.

[0012] Preferably, a heat-conducting rod of the same specifications is fixedly installed on the left side of the combustion chamber, and the left end of the heat-conducting rod is connected to the temperature measuring instrument, which can improve the accuracy of the temperature measuring instrument.

[0013] Preferably, four sets of opposing pads are fixedly installed on the bottom surface of the sintering furnace box, which can separate the sintering furnace box from the ground.

[0014] Preferably, the top surface of the sintering furnace box has two sets of oppositely positioned grooves, and the bottom surface of the cover plate is fixedly installed with a matching clip frame, which can improve the sealing performance of the cover plate.

[0015] 1. This high-efficiency heat dissipation circulating sintering furnace system, through the setting of an exhaust box, connecting pipe and heating chamber B, the heating plate heats the combustion box, and the flue gas generated in the combustion box is discharged into the heating chamber B through the exhaust box and connecting pipe. The heat in the flue gas heats the preheating box, thereby preheating the object to be burned inside and improving the heat utilization rate.

[0016] 2. Simultaneously, through the setup of a filter box, an exhaust box, and an exhaust vent, the exhaust box draws the flue gas into the heating chamber B, and then automatically enters the filter box under pressure. The filter components in the filter box adsorb and filter the flue gas, and then it is discharged through the exhaust vent, improving the environmental friendliness of the device. The reasonable structural design enhances the practicality of the device. Attached Figure Description

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

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

[0019] Figure 3 This is a schematic diagram of the sintering furnace box of this utility model;

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

[0021] In the diagram: 1. Sintering furnace box; 2. Combustion box; 3. Preheating box; 4. Baffle plate; 5. Heating chamber A; 6. Heating chamber B; 7. Heating plate; 8. Exhaust pipe; 9. Exhaust box; 10. Connecting pipe; 11. Filter box; 12. Filter plate; 13. Activated carbon adsorption plate; 14. Exhaust vent; 15. Sealing cover; 16. Control box; 17. Control button; 18. Temperature display screen; 19. Heat conducting rod; 20. Thermometer; 21. Sealing frame; 22. Groove; 23. Cover plate; 24. Clip frame; 25. Handle; 26. Pad block. 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1:

[0024] like Figure 1-4 As shown: the combustion chamber 2 and preheating chamber 3 are not in contact with the inner wall of the sintering furnace chamber 1 and are respectively equipped with heating chamber A5 and heating chamber B6. Heating chamber A5 is equipped with a heating plate 7 of appropriate specifications. A corresponding exhaust box 9 is fixedly installed on the rear side of the sintering furnace chamber 1. A flue gas pipe 8 is connected between the exhaust box 9 and the combustion chamber 2. A connecting pipe 10 is connected between the exhaust box 9 and the heating chamber B6. The combustion chamber 2 and preheating chamber 3 are made of thermally conductive material. Through the arrangement of the exhaust box 9, connecting pipe 10 and heating chamber B6, the heating plate 7 heats the combustion chamber 2. The flue gas generated in the combustion chamber 2 is discharged into the heating chamber B6 through the exhaust box 9 and connecting pipe 10. The heat in the flue gas heats the preheating chamber 3, thereby preheating the object to be burned inside and improving the heat utilization rate.

[0025] Example 2:

[0026] like Figure 2-4As shown: A filter box 11 is fixedly installed on the front side of the sintering furnace box 1, which is opposite to and connected to the heating chamber B6. The filter box 11 is equipped with a filter plate 12 and an activated carbon adsorption plate 13 of the same specifications. A sealed box cover 15 is installed on the top surface of the filter box 11. A connected exhaust port 14 is installed on the right side of the filter box 11. A sealed frame 21 of the same specifications is installed on the top surface of the heating chamber A5 and the heating chamber B6. A cover plate 23 of the same specifications is installed on the top surface of the combustion box 2 and the preheating box 3. A handle 25 is fixedly installed on the top surface of the cover plate 23. Through the setting of the filter box 11, the exhaust box 9 and the exhaust port 14, the exhaust box 9 draws the flue gas into the heating chamber B6, and then automatically enters the filter box 11 under pressure. The filter components in the filter box 11 adsorb and filter the flue gas, and then discharge it through the exhaust port 14. This improves the environmental protection of the device, and the structural design is reasonable, which improves the practicality of the device.

[0027] Example 3:

[0028] like Figure 2-3 As shown: A heat-conducting rod 19 of the same specification is fixedly installed on the left side of the combustion chamber 2. The left end of the heat-conducting rod 19 is connected to the temperature measuring instrument 20, which can improve the accuracy of the temperature measuring instrument 20.

[0029] The working principle and usage process of this utility model are as follows: When the device needs to work, the heating plate 7 heats the combustion chamber 2. The flue gas generated in the combustion chamber 2 is discharged into the heating chamber B6 through the exhaust box 9 and the connecting pipe 10. The heat in the flue gas heats the preheating box 3, thereby preheating the object to be burned inside and improving the heat utilization rate. At the same time, the exhaust box 9 draws the flue gas into the heating chamber B6, and then automatically enters the filter box 11 under pressure. The filter components in the filter box 11 adsorb and filter the flue gas, and then discharge it through the exhaust port 14, improving the environmental friendliness of the device. The structure is reasonably designed, improving the practicality of the device.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high-efficiency heat dissipation circulating sintering furnace system, comprising a sintering furnace box (1), wherein a combustion box (2) and a preheating box (3) are installed inside the sintering furnace box (1) and are positioned opposite each other; Its features are: The combustion chamber (2) and preheating chamber (3) are not in contact with the inner wall of the sintering furnace box (1) and are respectively equipped with heating chamber A (5) and heating chamber B (6). Heating chamber A (5) is equipped with a heating plate (7) of the same specification. A vent box (9) with opposite position is fixedly installed on the rear side of the sintering furnace box (1). A flue pipe (8) is connected between the vent box (9) and the combustion chamber (2). A connecting pipe (10) is connected between the vent box (9) and the heating chamber B (6). The combustion chamber (2) and preheating chamber (3) are made of heat-conducting material. A filter box (11) is fixedly installed on the front side of the sintering furnace box (1) and is connected to the heating chamber B (6). The filter box (11) is equipped with a filter plate (12) and an activated carbon adsorption plate (13) of the same specifications. A sealed box cover (15) is installed on the top surface of the filter box (11). A connected exhaust port (14) is installed on the right side of the filter box (11). A sealed frame (21) of the same specifications is installed on the top surface of the heating chamber A (5) and the heating chamber B (6). A cover plate (23) of the same specifications is installed on the top surface of the combustion box (2) and the preheating box (3). A handle (25) is fixedly installed on the top surface of the cover plate (23).

2. The high-efficiency heat dissipation circulating sintering furnace system according to claim 1, characterized in that: A partition (4) is fixedly installed between the combustion chamber (2) and the preheating chamber (3).

3. The high-efficiency heat dissipation circulating sintering furnace system according to claim 1, characterized in that: A control box (16) is fixedly installed on the front side of the sintering furnace box (1). The control box (16) is equipped with a control button (17) and a temperature display screen (18) on the front side. A connected thermometer (20) is installed in the heating chamber A (5).

4. The high-efficiency heat dissipation circulating sintering furnace system according to claim 1, characterized in that: A heat-conducting rod (19) of the same specification is fixedly installed on the left side of the combustion chamber (2), and the left end of the heat-conducting rod (19) is connected to the temperature measuring instrument (20).

5. The high-efficiency heat dissipation circulating sintering furnace system according to claim 1, characterized in that: Four sets of opposing pads (26) are fixedly installed on the bottom surface of the sintering furnace box (1).

6. The high-efficiency heat dissipation circulating sintering furnace system according to claim 1, characterized in that: The top surface of the sintering furnace box (1) is provided with two sets of opposite grooves (22), and the bottom surface of the cover plate (23) is fixedly installed with a matching clip frame (24).