Hot air circulation mechanism of sintered flux drying furnace

Abstract

The hot air circulation mechanism comprises a drying box and a dust removal box, a plurality of carrying plates are arranged in the drying box, an air inlet guide cavity and an air exhaust guide cavity are formed in the inner walls of the two sides of the drying box respectively, a plurality of through holes are formed in the opposite end faces of the air inlet guide cavity and the air exhaust guide cavity, and the through holes are communicated with the carrying plates. The multiple carrying plates are arranged between the air inlet guide cavity and the air exhaust guide cavity, an air inlet fan is fixedly installed on the outer wall of the drying box, a heater is fixedly installed on the periphery of an air inlet guide pipe, and an air exhaust guide pipe communicating with the air exhaust guide cavity and an air return guide pipe communicating with an inner cavity of the drying box are fixedly installed on the outer wall of the drying box. The dust removal box is fixedly installed between the air exhaust guide pipe and the air return guide pipe, an air return fan is arranged at the joint of the air exhaust guide pipe and the dust removal box, and a filter screen is fixedly installed in the dust removal box.

Description

Technical Field

[0001] This utility model relates to the technical field of sintering flux production and processing, specifically a hot air circulation mechanism for a sintering flux drying furnace. Background Technology

[0002] In modern industrial production, sintered flux drying equipment is one of the key pieces of equipment to ensure the stability of welding material performance. This type of drying equipment is mainly used to remove moisture and impurities from the flux to improve its performance. However, existing hot air circulation systems have some significant drawbacks that affect their efficiency and effectiveness.

[0003] For example, during the drying process of sintering flux, the air may contain a large amount of dust and impurities. If this dust adheres to the surface of the flux, it will not only reduce the performance of the flux but may also affect the quality of the final welded product. Existing hot air circulation systems usually lack effective air filtration devices, resulting in ineffective dust filtration, which further affects product quality and production efficiency. To address this, we propose a hot air circulation mechanism for a sintering flux drying furnace. Utility Model Content

[0004] The purpose of this invention is to provide a hot air circulation mechanism for a sintering flux drying furnace to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a hot air circulation mechanism for a sintering flux drying furnace, comprising a drying chamber and a dust collection chamber. The drying chamber contains multiple carrier plates. An air inlet cavity and an air outlet cavity are respectively opened on the inner walls of both sides of the drying chamber. Multiple through holes are opened on the facing end faces of the air inlet cavity and the air outlet cavity. Multiple carrier plates are disposed between the air inlet cavity and the air outlet cavity. An air inlet fan is fixedly installed on the outer wall of the drying chamber. An air inlet duct is fixedly installed between the output end of the air inlet fan and the air inlet cavity. A heater is fixedly installed around the air inlet duct. An exhaust duct communicating with the exhaust cavity and a return air duct communicating with the inner cavity of the drying chamber are fixedly installed on the outer wall of the drying chamber. The dust collection chamber is fixedly installed between the exhaust duct and the return air duct, and a return air fan is provided at the connection between the exhaust duct and the dust collection chamber. A filter screen is fixedly installed inside the dust collection chamber.

[0006] Preferably, a drive motor is fixedly installed at the lower end of the outer wall of the dust collection box, and a rotating rod is fixedly installed at the upper end of the drive motor through its output shaft. Multiple dust guide frames are fixedly installed around the rotating rod, and each dust guide frame corresponds to a filter screen. The lower ends of the corresponding dust guide frames are in contact with the upper ends of the filter screens.

[0007] Preferably, each of the filter screens is provided with a dust discharge pipe fixedly connected to the inner wall of the dust collection box, and a limiting rotating frame is fixedly installed at the inner end of each dust discharge pipe. The outer periphery of the rotating rod is provided with a dust guide hole that communicates with each limiting rotating frame, and a dust guide cavity is provided between adjacent dust guide holes and dust guide frames.

[0008] Preferably, the inner walls of both sides of the drying oven are fixedly installed with limiting plates, the air inlet cavity and the air outlet cavity are respectively opened in the limiting plates on both sides, and the carrier plate has limiting slots on both sides that are inserted and connected to the limiting plates.

[0009] Preferably, the opposing end faces of the two limiting plates are provided with positioning grooves, and the lower ends of the carrier plate are fixedly installed on both sides. A limiting slide rod is inserted into the limiting seat. A lever and a positioning tooth block are fixedly installed at the inner and outer ends of the limiting slide rod, respectively. The positioning tooth block is in contact with the carrier plate and is inserted into the positioning groove. A spring sleeved around the limiting slide rod is fixedly installed between the lever and the limiting seat.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] This hot air circulation mechanism for a sintering flux drying furnace includes a dust collection box on one side of the drying chamber, with a filter screen installed inside. Hot air is injected into the drying chamber via an inlet fan and heater, and then circulated through a return air duct. The filter screen effectively blocks impurities generated during the drying process of the sintering flux, improving the purity of the flux, preventing dust accumulation inside the device, reducing internal wear, and ultimately increasing production efficiency and extending service life.

[0012] This hot air circulation mechanism for a sintering flux drying furnace is equipped with a drive motor. Through a rotating rod, the dust guide frame can be rotated at the top of the filter screen. In conjunction with the dust guide chamber, the limiting rotating frame, and the dust discharge pipe, the pressure difference at the point where the dust guide frame is attached to the filter screen can draw out and recycle impurities such as sintering flux dust from the filter screen surface, thereby ensuring the filtration effect of the filter screen. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the external structure of the drying box and dust removal box of this utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the drying oven of this utility model;

[0015] Figure 3 This is a schematic diagram of the internal structure of the dust collector box of this utility model;

[0016] Figure 4 This is a schematic diagram of the internal disassembled structure of the dust collector box of this utility model;

[0017] Figure 5 For the present utility model Figure 4 Enlarged schematic diagram of the structure at point A in the middle;

[0018] Figure 6 This is a schematic diagram of the internal structure of the limiting plate of this utility model;

[0019] Figure 7 This is a schematic diagram of the external disassembled structure of the carrier plate of this utility model.

[0020] In the picture:

[0021] 1. Drying oven; 12. Air inlet cavity; 13. Air outlet cavity; 14. Air inlet fan; 15. Air inlet duct; 16. Heater; 17. Air outlet duct; 18. Return air duct; 19. Through hole;

[0022] 2. Dust collection box; 21. Return air fan; 22. Filter screen; 23. Drive motor; 24. Rotating rod; 25. Dust guide frame; 26. Limiting rotating frame; 27. Dust discharge pipe; 28. Dust guide chamber; 29. ​​Dust guide hole;

[0023] 3. Carrier plate; 31. Limiting slot; 32. Limiting plate; 33. Positioning tooth groove; 34. Limiting seat; 35. Positioning tooth block; 36. Limiting slide bar; 37. Paddle plate; 38. Spring. Detailed Implementation

[0024] 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.

[0025] Please see Figure 1-7This utility model provides a technical solution: a hot air circulation mechanism for a sintering flux drying furnace, including a drying box 1 and a dust removal box 2. The drying box 1 contains multiple carrier plates 3. Air inlet ducts 12 and exhaust ducts 13 are respectively opened on the inner walls of both sides of the drying box 1. Multiple through holes 19 are opened on the facing end faces of the air inlet ducts 12 and 13. Multiple carrier plates 3 are disposed between the air inlet ducts 12 and 13. An air inlet fan 14 is fixedly installed on the outer wall of the drying box 1. An air inlet duct 15 is fixedly installed between the output end and the air inlet cavity 12. A heater 16 is fixedly installed around the air inlet duct 15. An exhaust duct 17, which communicates with the exhaust cavity 13, and a return air duct 18, which communicates with the inner cavity of the drying box 1, are fixedly installed on the outer wall of the drying box 1. A dust collector 2 is fixedly installed between the exhaust duct 17 and the return air duct 18. A return air fan 21 is provided at the connection between the exhaust duct 17 and the dust collector 2. A filter screen 22 is fixedly installed inside the dust collector 2.

[0026] Working principle: When in use, start the intake fan 14, heater 16 and return fan 21;

[0027] Outside air can be injected into the drying chamber 1 through the air intake fan 14 and heater 16 and heated. Then, through the air intake guide cavity 12 and through hole 19, the air can be guided to the upper end of each carrier plate 3 to achieve the effect of drying the sintered flux on the upper end of the carrier plate 3.

[0028] By using the return air fan 21, in conjunction with the through hole 19, the exhaust air guide cavity 13, the exhaust air duct 17 and the return air duct 18, hot air can be circulated and guided in the drying box 1 and the dust removal box 2, thereby improving the heat utilization rate and thus improving the heating effect on the sintering flux.

[0029] During the hot air circulation process, dust and other impurities generated during the drying of sintering flux will flow with the hot air. When the hot air passes through the filter screen 22, the impurities in the hot air can be filtered out.

[0030] As a further description of the above technical solution: A drive motor 23 is fixedly installed at the lower end of the outer wall of the dust collection box 2. A rotating rod 24 is fixedly installed at the upper end of the drive motor 23 through its output shaft. Multiple dust guide frames 25 are fixedly installed around the rotating rod 24. Each dust guide frame 25 corresponds to a filter screen 22. The lower ends of the corresponding dust guide frames 25 are in contact with the upper ends of the filter screens 22. Each filter screen 22 is provided with a dust discharge pipe 27 fixedly connected to the inner wall of the dust collection box 2. A limiting rotating frame 26 is fixedly installed at the inner end of each dust discharge pipe 27. A dust guide hole 29 communicating with each limiting rotating frame 26 is opened around the rotating rod 24. A dust guide cavity 28 is opened between adjacent dust guide holes 29 and dust guide frames 25.

[0031] Specifically, when it is necessary to recover impurities on the surface of the filter screen 22, close the valve at the return air duct 18, open the valve at the dust discharge pipe 27, and start the drive motor 23. Through its output shaft and rotating rod 24, the dust guide frame 25 can be rotated on the surface of the filter screen 22. Through the pressure difference change at the contact point between the two, the impurities on the surface of the filter screen 22 can be pushed to the dust guide frame 25, and through the dust guide chamber 28, dust guide hole 29, limit rotating frame 26 and dust discharge pipe 27, the impurities can be led out and recovered.

[0032] As a further description of the above technical solution: Limiting plates 32 are fixedly installed on the inner walls of both sides of the drying oven 1. The air inlet cavity 12 and the air outlet cavity 13 are respectively opened in the limiting plates 32 on both sides. Limiting slots 31 that are inserted and connected to the limiting plates 32 are opened on both sides of the carrier plate 3. Positioning tooth grooves 33 are opened on the opposite end faces of the limiting plates 32 on both sides. Limiting seats 34 are fixedly installed on both sides of the lower end of the carrier plate 3. Limiting slide rods 36 are inserted and installed in the limiting seats 34. The inner and outer ends of the limiting slide rods 36 are respectively fixedly installed with a lever 37 and a positioning tooth block 35. The positioning tooth block 35 is in contact with the carrier plate 3, and the positioning tooth block 35 is inserted and connected to the positioning tooth groove 33. A spring 38 sleeved on the periphery of the limiting slide rod 36 is fixedly installed between the lever 37 and the limiting seat 34.

[0033] Specifically, when installing the carrier plate 3, the positioning teeth 35 on both sides are pressed inward by the lever 37, so that the positioning teeth 35 are completely under the carrier plate 3. The carrier plate 3 is then adjusted to a vertical position and placed in the drying chamber 1, with the limiting slot 31 and the limiting plate 32 aligned. The carrier plate 3 is then rotated to a horizontal position, so that the limiting slot 31 and the limiting plate 32 are interlocked. Then, the lever 37 is released, and under the action of the spring 38 restoring its deformation, the positioning teeth 35 and the positioning slot 33 are interlocked, achieving the effect of positioning the carrier plate 3. Conversely, the carrier plate 3 can be disassembled, and the number and position of the carrier plates 3 can be adjusted in the drying chamber 1 according to the drying requirements of the sintering flux.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hot air circulation mechanism for a sintering flux drying furnace, comprising a drying chamber (1) and a dust collection chamber (2), characterized in that: The drying chamber (1) is provided with multiple carrier plates (3). The inner walls on both sides of the drying chamber (1) are respectively provided with an air inlet guide cavity (12) and an air outlet guide cavity (13). Multiple through holes (19) are provided on the facing end faces of the air inlet guide cavity (12) and the air outlet guide cavity (13). Multiple carrier plates (3) are disposed between the air inlet guide cavity (12) and the air outlet guide cavity (13). An air inlet fan (14) is fixedly installed on the outer wall of the drying chamber (1). An air inlet duct is fixedly installed between the output end of the air inlet fan (14) and the air inlet guide cavity (12). (15) A heater (16) is fixedly installed around the air inlet duct (15). An exhaust duct (17) communicating with the exhaust duct cavity (13) and a return air duct (18) communicating with the inner cavity of the drying box (1) are fixedly installed on the outer wall of the drying box (1). The dust collector (2) is fixedly installed between the exhaust duct (17) and the return air duct (18). A return air fan (21) is provided at the connection between the exhaust duct (17) and the dust collector (2). A filter screen (22) is fixedly installed inside the dust collector (2).

2. The hot air circulation mechanism for a sintering flux drying furnace according to claim 1, characterized in that: A drive motor (23) is fixedly installed on the lower end of the outer wall of the dust collection box (2). A rotating rod (24) is fixedly installed on the upper end of the drive motor (23) through its output shaft. Multiple dust guide frames (25) are fixedly installed around the rotating rod (24). Each dust guide frame (25) corresponds to a filter screen (22), and the lower end of the corresponding dust guide frame (25) is in contact with the upper end of the filter screen (22).

3. The hot air circulation mechanism for a sintering flux drying furnace according to claim 2, characterized in that: Each of the filter screens (22) is provided with a dust discharge pipe (27) fixedly connected to the inner wall of the dust collection box (2) on its upper side. A limit rotating frame (26) is fixedly installed at the inner end of each dust discharge pipe (27). A dust guide hole (29) communicating with each limit rotating frame (26) is opened on the periphery of the rotating rod (24). A dust guide cavity (28) is opened between adjacent dust guide holes (29) and dust guide frames (25).

4. The hot air circulation mechanism for a sintering flux drying furnace according to claim 1, characterized in that: Limiting plates (32) are fixedly installed on the inner walls of both sides of the drying box (1). The air inlet cavity (12) and the air outlet cavity (13) are respectively opened in the limiting plates (32) on both sides. Limiting slots (31) that are inserted and connected to the limiting plates (32) are opened on both sides of the carrier plate (3).

5. The hot air circulation mechanism for a sintering flux drying furnace according to claim 4, characterized in that: The two limiting plates (32) on both sides have positioning grooves (33) on their facing end faces. The lower end of the carrier plate (3) is fixedly installed with limiting seats (34). The limiting seats (34) are inserted into the limiting slide rods (36). The inner and outer ends of the limiting slide rods (36) are respectively fixedly installed with a lever (37) and a positioning tooth block (35). The positioning tooth block (35) is in contact with the carrier plate (3), and the positioning tooth block (35) is inserted into the positioning grooves (33). A spring (38) is fixedly installed between the lever (37) and the limiting seat (34) and is sleeved around the limiting slide rod (36).

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