Air duct filter device for a fluid bed dryer

By adopting a multi-layer filtration structure and a conveniently replaceable sliding filter plate design in the European-style dryer, the problem of low filtration efficiency of single-layer filters is solved, achieving efficient air purification and material drying effects.

CN224593647UActive Publication Date: 2026-08-04TAIYITE AUTOMATION MASCH (CHANGSHU) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TAIYITE AUTOMATION MASCH (CHANGSHU) CO LTD
Filing Date
2025-07-31
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

The existing European-style dryer has a single-layer filter screen in the air duct, which results in low filtration efficiency of impurities in the air and affects the efficiency of material utilization.

Method used

It adopts a multi-layer filtration structure, including a sliding filter plate and a sieve plate. The sliding filter plate performs preliminary filtration of large particles, while the sieve plate performs fine filtration. The sliding filter plate can be easily replaced by a rotating rod and spring mechanism. Combined with a fan to regulate airflow, the filtration effect is improved.

Benefits of technology

It improves air cleanliness, reduces contamination of materials by impurities, and enhances the working efficiency of the dryer and the drying effect of the materials.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to drying -machine technical field discloses a kind of air duct filter screen devices of European drying machine, including drying cabinet, the outside of drying cabinet is fixedly connected with support ring, the bottom of support ring is fixedly connected with multiple support columns, the outside of drying cabinet is fixedly connected with support block, the front end of support block is fixedly connected with control cabinet, the right end of control cabinet is fixedly connected with blow box, the top of blow box is fixedly connected with air inlet pipe, the inside of air inlet pipe is fixedly connected with sieve plate, the inside of air inlet pipe is slidably connected with sliding filter plate, the top of sliding filter plate is fixedly connected with fixed block, in the utility model, by opening sliding rod, make spring release elastic force pass through baffle and drive sliding shaft to embed the inside of sliding plate, complete the fixation of sliding filter plate, and then improve the filtering effect while facilitating the maintenance of sliding filter plate.
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Description

Technical Field

[0001] This utility model relates to the field of dryer technology, and in particular to an air duct filter device for a European-style dryer. Background Technology

[0002] The European-style dryer is an industrial drying equipment that integrates advanced European drying technology and design concepts. Its core features include a highly efficient hot air circulation system, precise temperature and humidity control, and wide applicability to a variety of materials. It typically employs a closed drying chamber combined with an intelligent control system to ensure uniform drying of materials while reducing energy consumption. It is widely used in industries such as plastics processing, chemicals, and food.

[0003] The European-style dryer creates a circulating hot air environment within a closed drying chamber. A heating device heats the air to a set temperature, and a high-efficiency fan evenly delivers the hot air into the chamber, ensuring full contact with the material to be dried. Heat exchange evaporates the moisture from the material. The evaporated humid air is then dehumidified, and the dried air is reheated and returned to the chamber, forming a closed-loop hot air circulation. Simultaneously, an intelligent control system monitors the temperature, humidity, and material condition within the chamber in real time, dynamically adjusting the heating power, airflow, and circulation frequency to ensure uniform dehydration of the material under stable drying conditions.

[0004] In existing technologies, some European-style dryers have low filtration efficiency for airborne particles due to their single-layer air duct filter. This results in impurities entering the drying chamber with the airflow and adhering to the material surface, thus affecting the material's utilization efficiency. Therefore, a new air duct filter device for European-style dryers is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides an air duct filter device for a European-style dryer, aiming to improve the problem that some European-style dryers in the prior art cannot finely filter impurities in the air due to the single-layer filtration of the air duct filter, thus affecting the efficiency of material use.

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

[0007] A duct filter device for a European-style dryer includes a drying chamber. A support ring is fixedly connected to the outside of the drying chamber. Multiple support columns are fixedly connected to the bottom of the support ring. A support block is fixedly connected to the outside of the drying chamber. A control console is fixedly connected to the front end of the support block. A blower box is fixedly connected to the right end of the control console. An air inlet pipe is fixedly connected to the top of the blower box. A sieve plate is fixedly connected to the inside of the air inlet pipe. A sliding filter plate is slidably connected to the inside of the air inlet pipe. A fixing block is fixedly connected to the top of the sliding filter plate. A fixing plate is fixedly connected to the outside of the air inlet pipe. A support plate is fixedly connected to the inside of the air inlet pipe. Two sliding plates are fixedly connected to the bottom of the sliding filter plate. A sliding assembly is slidably connected to the inside of the fixing plate. Two rotating rods are rotatably connected to the inside of the sliding assembly. A sliding shaft is rotatably connected to the inside of the rotating rods. A spring is sleeved on the outside of the sliding shaft. A baffle is fixedly connected to the outside of the sliding shaft.

[0008] As a further description of the above technical solution:

[0009] A fan is fixedly connected inside the blower box; a connecting rod is slidably connected inside the blower box; a fixed shaft is fixedly connected inside the blower box; a fixed frame is fixedly connected inside the blower box; multiple rotating shafts are rotatably connected inside the blower box; a rotating plate is fixedly connected to the outside of the rotating shaft; a rotating block is fixedly connected to the outside of the rotating shaft; multiple round rods are fixedly connected inside the connecting rod; and a slide rail is provided inside the blower box.

[0010] As a further description of the above technical solution:

[0011] The sliding assembly includes a sliding block, the outside of which is slidably connected to the inside of the fixed plate, a sliding rod fixedly connected to the bottom of the sliding block, and the inside of the sliding block rotatably connected to the outside of the two rotating rods.

[0012] As a further description of the above technical solution:

[0013] The two sliding shafts are slidably connected to the outside of the two sliding plates, and the far ends of the two springs are fixedly connected to the near ends of the two baffles.

[0014] As a further description of the above technical solution:

[0015] The two springs are fixedly connected at their adjacent ends to the left and right ends of the support plate, respectively, and the two sliding shafts are slidably connected to the outside of the support plate.

[0016] As a further description of the above technical solution:

[0017] The external parts of the plurality of rotating shafts are rotatably connected to the inside of the fixed frame, and the internal parts of the connecting rod are slidably connected to the outside of the fixed shafts;

[0018] As a further description of the above technical solution:

[0019] The rotating block is rotatably connected to the outside of the round rod, and the multiple round rods are slidably connected to the outside of the fixed shaft.

[0020] As a further description of the above technical solution:

[0021] The external rotating plates are rotatably connected to the inside of the fixed frame, and the external connecting rod is slidably connected to the inside of the slide rail.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, a sliding filter plate performs preliminary filtration of large particulate impurities in the air, followed by further fine filtration through a sieve plate. By intercepting impurities of different sizes, the cleanliness of the air entering the equipment is improved, reducing contamination of the materials inside the dryer by impurities. Simultaneously, pulling the fixed block causes the sliding filter plate to slide away from the inside of the air inlet pipe. Pulling the sliding rod causes the sliding block to slide, which in turn drives the rotating rod to rotate. The rotating rod drives the sliding shaft to slide away from the sliding plate, thereby replacing the sliding filter plate and improving the filtration effect. The sliding filter plate is then embedded inside the air inlet pipe. By releasing the sliding rod, the spring releases its elastic force, which drives the sliding shaft to embed into the inside of the sliding plate through the baffle, thus fixing the sliding filter plate. This improves the filtration effect while facilitating the maintenance of the sliding filter plate.

[0024] 2. In this utility model, airflow is generated by starting the fan, and multiple round rods slide outside the fixed shaft via the sliding connecting rod. The round rods collide with the rotating block, thereby driving the rotating shaft to rotate, which in turn drives the rotating plate to rotate. This allows for flexible adjustment of the airflow inside the drying box. By adjusting the size and direction of the airflow, the drying environment inside the drying box is adapted to the material, thereby improving the working efficiency of the dryer. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of an air duct filter device for a European-style dryer proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the support block for the air duct filter device of a European-style dryer proposed in this utility model;

[0027] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0028] Figure 4 This is a schematic diagram of the support column of the air duct filter device of the European-style dryer proposed in this utility model;

[0029] Figure 5 for Figure 4 Enlarged view of section B in the middle.

[0030] Legend:

[0031] 1. Drying oven; 2. Support ring; 3. Support column; 4. Support block; 5. Control console; 6. Air box; 7. Air inlet pipe; 8. Sieve plate; 9. Sliding filter plate; 10. Fixed block; 11. Fixed plate; 12. Support plate; 13. Sliding plate; 14. Sliding block; 15. Sliding rod; 16. Rotating rod; 17. Sliding shaft; 18. Spring; 19. Baffle; 20. Fan; 21. Connecting rod; 22. Fixed shaft; 23. Fixed frame; 24. Rotating shaft; 25. Rotating plate; 26. Rotating block; 27. Round rod; 28. Slide rail. Detailed Implementation

[0032] 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.

[0033] Reference Figures 1 to 3 This utility model provides an embodiment of an air duct filter device for a European-style dryer, including a drying chamber 1 for drying operations. A support ring 2 is fixedly connected to the outside of the drying chamber 1. Multiple support columns 3 are fixedly connected to the bottom of the support ring 2, providing fixation for the support ring 2. The support ring 2 acts as a connector, contacting the ground through the multiple support columns 3, thus stabilizing the drying chamber 1. A support block 4 is fixedly connected to the outside of the drying chamber 1, providing fixation and improving the load-bearing capacity of the support block 4. A control console 5 is fixedly connected to the front end of the support block 4, used for mounting and fixing the control console 5, and for controlling the operation of the dryer by activating the control console 5. A blower box 6 is fixedly connected to the right end of the control console 5, used for generating and conveying airflow. An air inlet pipe 7 is fixedly connected to the top of the blower box 6, used for introducing external air. A sieve plate 8 is fixedly connected inside the air inlet pipe 7, used for fine filtration of small particles in the incoming air. A sliding filter plate 9 is slidably connected inside the air inlet duct 7. The sliding filter plate 9 performs preliminary filtration of large particulate impurities in the incoming air. A fixing block 10 is fixedly connected to the top of the sliding filter plate 9. By pulling the fixing block 10, the sliding filter plate 9 is moved to slide.

[0034] An external fixing plate 11 is fixedly connected to the air inlet duct 7, providing fixation for the fixing plate 11 and preventing it from falling off, thereby improving the stability of the fixing plate 11. An internal fixing support plate 12 is fixedly connected to the air inlet duct 7, providing fixation for the support plate 12 and thereby improving the load-bearing capacity of the support plate 12. Two sliding plates 13 are fixedly connected to the bottom of the sliding filter plate 9, and the sliding of the sliding filter plate 9 drives the two sliding plates 13 to slide. A sliding assembly is slidably connected inside the fixing plate 11, providing installation and sliding space for the sliding assembly and improving the sliding maintenance of the sliding assembly. The sliding assembly includes a sliding block 14, which is externally slidably connected to the inside of the fixing plate 11. The fixing plate 11 provides guidance for the sliding of the sliding block 14, preventing the sliding block 14 from deviating during sliding. A sliding rod 15 is fixedly connected to the bottom of the sliding block 14, and pulling the sliding rod 15 drives the sliding block 14 to slide. The sliding assembly has two rotating rods 16 internally connected to each other, and the sliding block 14 is internally connected to the outside of the two rotating rods 16. The sliding block 14 is connected to the two rotating rods 16 through two shafts, and the sliding of the sliding block 14 drives the two rotating rods 16 to rotate.

[0035] The rotating rod 16 is internally connected to a sliding shaft 17, which rotates due to the rotation of the two shafts. The two sliding shafts 17 are externally slidably connected to the inside of the support plate 12, which guides them and prevents them from deviating during sliding. The two sliding shafts 17 are externally slidably connected to the inside of two sliding plates 13, securing them by embedding them within each plate. A spring 18 is sleeved on the outside of each sliding shaft 17, providing support and ensuring even force distribution, thus improving the spring's efficiency. The adjacent ends of the two springs 18 are fixedly connected to the left and right ends of the support plate 12, which supports them and prevents them from shifting during extension and contraction. A baffle 19 is fixedly connected to the outside of each sliding shaft 17, and its movement is driven by the sliding of the shaft. The far ends of the two springs 18 are fixedly connected to the near ends of the two baffles 19 respectively. The springs 18 are compressed by the sliding of the baffles 19, causing the springs 18 to deform under force.

[0036] Reference Figure 1 , Figure 4 and Figure 5A fan 20 is fixedly connected inside the air blower box 6 via welding. The fan 20 is located at the bottom of the air inlet pipe 7, ensuring stable airflow. A connecting rod 21 is slidably connected inside the air blower box 6, providing a guide for the fan 20 to prevent deviation and improve its sliding stability. A fixed shaft 22 is fixedly connected inside the air blower box 6, with the connecting rod 21 slidably connected to its exterior. The air blower box 6 provides fixation for the fixed shaft 22, improving its stability, while the fixed shaft 22 guides the sliding of the connecting rod 21, preventing it from shifting and improving its sliding stability. A fixed frame 23 is also fixedly connected inside the air blower box 6. The fixed frame 23 is made of sturdy material, and the air blower box 6 provides fixation for it, preventing it from shaking and improving its stability. The blower box 6 has multiple rotating shafts 24 rotatably connected inside. The blower box 6 provides support for the rotation of the rotating shafts 24 and prevents the rotating shafts 24 from shifting during rotation.

[0037] Multiple rotating shafts 24 are externally rotatably connected to the inside of a fixed frame 23. The fixed frame 23 provides limits for the rotation of the rotating shafts 24, preventing them from deviating during rotation. A rotating plate 25 is fixedly connected to the outside of the rotating shafts 24, and the rotation of the rotating shafts 24 drives the rotating plate 25 to rotate. Multiple rotating plates 25 are externally rotatably connected to the inside of the fixed frame 23, and the fixed frame 23 provides limits for the rotation of the rotating plates 25, preventing them from deviating during rotation and thus improving the horizontal stability of the rotating plates 25. A rotating block 26 is fixedly connected to the outside of the rotating shafts 24, and the rotation of the rotating block 26 drives the rotating shafts 24 to rotate. Multiple round rods 27 are fixedly connected inside the connecting rod 21, and the sliding of the connecting rod 21 drives the multiple round rods 27 to slide. The multiple round rods 27 are internally slidably connected to the outside of a fixed shaft 22, and the fixed shaft 22 provides guidance for the sliding of the round rods 27, preventing them from deviating during sliding. The rotating block 26 is internally rotatably connected to the outside of the round rod 27. A sliding groove is provided inside the rotating block 26, which rotates due to the sliding motion of the round rod 27. A slide rail 28 is provided inside the blower box 6. The connecting rod 21 is externally slidably connected to the inside of the slide rail 28. The slide rail 28 guides the sliding of the connecting rod 21, preventing it from shifting during sliding and thus improving the sliding stability of the slide rail 28.

[0038] Working principle: The control console 5 drives the fan 20 to operate. The airflow generated by the fan 20 enters the equipment through the air inlet pipe 7. Large particles in the air are initially filtered by the sliding filter plate 9, and further finely filtered by the sieve plate 8. Pulling the fixed block 10 causes the sliding filter plate 9 to slide away from the inside of the air inlet pipe 7. At this time, pulling the sliding rod 15 causes the sliding block 14 to slide inside the fixed plate 11. This causes the sliding block 14 to drive the two rotating rods 16 to rotate through the shaft. The two rotating rods 16 drive the two sliding shafts 17 to rotate through the shaft. Under the limitation of the support plate 12, the two sliding shafts 17 slide, which in turn causes the sliding shafts 17 to drive the baffle 19 to compress the spring 18, causing the spring 18 to deform under force. At this time, the two sliding shafts 17 slide away from the interior of the two sliding plates 13, which in turn causes the sliding filter plate 9 to slide away from the interior of the air inlet pipe 7, making it easier to clean and replace the sliding filter plate 9. The sliding filter plate 9 enters the interior of the air inlet pipe 7. At this time, the sliding rod 15 is released, which causes the spring 18 to release its elastic force, which in turn causes the sliding shafts 17 to reset, and then the sliding shafts 17 are embedded in the interior of the sliding plates 13, thus completing the fixation of the sliding filter plate 9.

[0039] By activating the fan 20, airflow is generated, allowing air to enter the air inlet duct 7. At this time, the connecting rod 21 drives multiple round rods 27 to slide outside the fixed shaft 22. The sliding of the multiple round rods 27 drives multiple rotating blocks 26 to rotate. The rotation of the rotating blocks 26 drives multiple rotating shafts 24 to rotate, which in turn drives multiple rotating plates 25 to rotate inside the fixed frame 23. The rotation of the rotating shafts 24 regulates the airflow inside the blower box 6, thereby improving the efficiency of the dryer.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An air duct filter device of a European drying machine, comprising a drying cabinet (1), characterized in that: The drying chamber (1) is externally fixedly connected to a support ring (2), and the bottom of the support ring (2) is fixedly connected to multiple support columns (3). The drying chamber (1) is externally fixedly connected to a support block (4), and the front end of the support block (4) is fixedly connected to a control console (5). The right end of the control console (5) is fixedly connected to a blower box (6), and the top of the blower box (6) is fixedly connected to an air inlet pipe (7). The inside of the air inlet pipe (7) is fixedly connected to a sieve plate (8), and the inside of the air inlet pipe (7) is slidably connected to a sliding filter plate (9). The top of the sliding filter plate (9) is fixedly connected to... A fixed block (10) is attached to the air inlet pipe (7), a fixed plate (11) is fixedly connected to the outside of the air inlet pipe (7), a support plate (12) is fixedly connected to the inside of the air inlet pipe (7), two sliding plates (13) are fixedly connected to the bottom of the sliding filter plate (9), a sliding assembly is slidably connected to the inside of the fixed plate (11), two rotating rods (16) are rotatably connected to the inside of the sliding assembly, a sliding shaft (17) is rotatably connected to the inside of the rotating rods (16), a spring (18) is sleeved on the outside of the sliding shaft (17), and a baffle (19) is fixedly connected to the outside of the sliding shaft (17).

2. A duct filter assembly for an EUROTHERM dryer as claimed in claim 1, wherein: A fan (20) is fixedly connected inside the blower box (6). A connecting rod (21) is slidably connected inside the blower box (6). A fixed shaft (22) is fixedly connected inside the blower box (6). A fixed frame (23) is fixedly connected inside the blower box (6). Multiple rotating shafts (24) are rotatably connected inside the blower box (6). A rotating plate (25) is fixedly connected to the outside of the rotating shaft (24). A rotating block (26) is fixedly connected to the outside of the rotating shaft (24). Multiple round rods (27) are fixedly connected inside the connecting rod (21). A slide rail (28) is provided inside the blower box (6).

3. A duct filter assembly for an EUROTHERM dryer as claimed in claim 1, wherein: The sliding assembly includes a sliding block (14), the outside of which is slidably connected to the inside of the fixed plate (11), the bottom of which is fixedly connected to a sliding rod (15), and the inside of which is rotatably connected to the outside of two rotating rods (16).

4. A duct filter assembly for an EUROTHERM dryer as claimed in claim 1, wherein: The two sliding shafts (17) are slidably connected to the outside of the two sliding plates (13), and the far ends of the two springs (18) are fixedly connected to the near ends of the two baffles (19).

5. A duct filter assembly for an EUROTHERM dryer as claimed in claim 1, wherein: The two springs (18) are fixedly connected at their respective ends to the left and right ends of the support plate (12), and the two sliding shafts (17) are slidably connected to the outside of the support plate (12).

6. A duct filter assembly for an EUROTHERM dryer as claimed in claim 2, wherein: The external rotatable connection of the plurality of said rotating shafts (24) is to the inside of the fixed frame (23), and the internal sliding connection of the connecting rod (21) is to the outside of the fixed shaft (22).

7. A duct filter assembly for an EUROTHERM dryer as claimed in claim 2, wherein: The interior of the rotating block (26) is rotatably connected to the exterior of the round rod (27), and the interiors of the multiple round rods (27) are slidably connected to the exterior of the fixed shaft (22).

8. A duct filter assembly for an EUROTHERM dryer as claimed in claim 2, wherein: The outer rotation connection of multiple rotating plates (25) is arranged inside the fixed frame (23), and the outer sliding connection of the connecting rod (21) is arranged inside the sliding rail (28).