Low-resistance air distribution device for rotary flash dryer

Abstract

This utility model discloses a low-resistance air distribution device for a rotary flash dryer, relating to the field of rotary flash dryers. The low-resistance air distribution device includes a conveying pipe with a fixed plate at its end. A mounting rod is slidably pressed against the side of the fixed plate by a spring. A filter media roll is supported and installed via the mounting rod. The existing fixed mounting rod, used to support the filter media roll, is modified into a sliding mounting type, with a spring structure for pressing and adjusting. A drive motor drives a lever to periodically rotate around the filter media roll. The lever pushes the mounting rod to advance, simultaneously compressing the spring to accumulate elastic potential energy. After the mounting rod leaves the lever's range of action, the spring's elastic potential energy causes the mounting rod to suddenly rebound, generating vibration. This vibration shakes off material adhering to the side of the filter media roll, preventing the previously fixed filter media roll from becoming clogged with material during use.

Description

Technical Field

[0001] This utility model proposes a low-resistance air distribution device, which relates to the field of rotary flash dryers, and specifically to a low-resistance air distribution device for a rotary flash dryer. Background Technology

[0002] When the rotary flash dryer is working, larger and wetter particle clusters are thrown to the outer ring and broken by centrifugal force. The broken particle clusters are lifted by hot air, and material clusters that do not meet the requirements fall back onto the centrifugal disc. Material particles that meet the requirements are output to the outside through the low-resistance air distribution device.

[0003] The low-resistance air distribution device is a key design feature in rotary flash dryers used to improve drying efficiency and energy-saving performance. Its main function is to optimize airflow distribution and reduce system resistance. Existing low-resistance air distribution devices form a filtration structure by using two filter rolls wound in a zigzag pattern to increase the processing air volume and reduce device resistance. However, this structure is prone to clogging over time and cannot be effectively cleaned automatically.

[0004] Therefore, those skilled in the art propose a low-resistance air distribution device for a rotary flash dryer, which not only retains a good filtration effect but also avoids clogging through automatic cleaning. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a low-resistance air distribution device for a rotary flash dryer. A lever is installed around a filter media roll via a drive motor, and the shaft supporting the filter media roll is configured as a spring-loaded sliding mounting structure. The lever periodically actuates the mounting rod, causing periodic vibration of the filter media roll, thereby achieving automatic cleaning of the low-resistance air distribution device.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a low-resistance air distribution device for a rotary flash dryer, comprising a conveying pipe and two filter media rolls wound in a zigzag pattern at the end of the conveying pipe, the two filter media rolls wound in a zigzag pattern at the end of the conveying pipe forming a double-layer low-resistance air distribution device at the inlet of the conveying pipe.

[0007] A fixing plate is fixed to the end of the conveying pipe, and an installation rod is slidably provided on the side of the fixing plate through an elastic structure. The installation rod forms the basis for providing the filter material to be rolled into a zigzag shape.

[0008] A drive motor is installed through the central axis of the fixed disk, and a mounting plate is fixed to the side of the drive motor. The drive motor drives the mounting plate to rotate at a constant speed.

[0009] The output shaft of the drive motor is rotatably connected to the fixed disk, and the mounting disk is arranged parallel to the fixed disk.

[0010] A lever is provided on the side of the mounting plate corresponding to the mounting rod. As the mounting plate rotates, the lever fixed to the mounting plate exerts a squeezing and pushing effect on the ring-shaped mounting rod. The elastic structure pressing against the mounting rod is compressed by the force. After the mounting rod leaves the range of action of the lever, the lever pops out and vibrates, and the adhesive layer on its surface is removed under the action of vibration.

[0011] Preferably, the fixed plate is fixed to the end of the conveying pipe by a connecting rod, forming a low-resistance air distribution device with the filter media roll as the outer filtration structure.

[0012] The side of the fixed plate is provided with a mounting groove, and the mounting rod is slidably connected to the fixed plate through the mounting groove. When the mounting rod is pushed by the lever, it advances along the mounting groove and accumulates elastic potential energy. When the mounting rod loses the pushing action of the lever, it pops out and vibrates.

[0013] Preferably, a slider is slidably provided on the inner side of the mounting groove, and an adjusting screw is provided through one side of the slider away from the mounting rod. The adjusting screw is rotatably connected to the fixed plate, and the slider is adjusted along the mounting groove by means of the adjusting screw.

[0014] Preferably, a spring is provided between the two sliders, and one of the sliders is pressed against one side of the mounting rod by the spring. The spring force pushes the mounting rod, which not only forms a stable filter roll support structure, but also provides the mounting rod with the advance distance to accumulate elastic potential energy when it is pushed by the lever.

[0015] A fixing block is fixed to the side of the fixing plate, and the adjusting screw passes through the fixing block and is rotatably connected to it.

[0016] Preferably, a push block is fixed to the side of the filter media roll corresponding to the lever to prevent the lever from directly contacting the filter media roll that is used for filtration, thereby preventing damage to the filter media roll.

[0017] This utility model discloses a low-resistance air distribution device for a rotary flash dryer, which has the following beneficial effects:

[0018] The low-resistance air distribution device of this rotary flash dryer transforms the existing fixed mounting rod, which supports the filter media roll, into a sliding mounting type. A spring structure is used to clamp and adjust the rod. A drive motor drives a lever to rotate periodically around the filter media roll. The lever pushes the mounting rod to advance, while compressing the spring to accumulate elastic potential energy. After the mounting rod leaves the range of the lever, the elastic potential energy of the spring suddenly rebounds the mounting rod, generating vibration. This vibration shakes off the material adhering to the side of the filter media roll, preventing the existing fixed filter media roll from gradually clogging over time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the inner structure of the filter media roll of this utility model;

[0022] Figure 3 This is a schematic diagram of the mounting rod clamping and adjusting structure of this utility model.

[0023] In the diagram: 1. Conveying pipe; 2. Filter media roll; 3. Fixing disc; 4. Drive motor; 5. Mounting disc; 6. Mounting rod; 7. Toggle lever; 8. Connecting rod; 9. Mounting groove; 10. Sliding block; 11. Adjusting screw; 12. Spring; 13. Fixing block; 14. Pushing block. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] This utility model discloses a low-resistance air distribution device for a rotary flash dryer;

[0026] According to the appendix Figure 1-3 As shown, a fixed disk 3 is connected to the feed end of the material conveying pipe 1 via a connecting rod 8. A drive motor 4 is installed through the central axis of the fixed disk 3. An installation disk 5 is fixed parallel to the fixed disk 3 on the side of the output shaft of the drive motor 4. An installation rod 6 is installed on the side of the installation disk 5. A zigzag filter media roll 2 is then installed at the end of the conveying pipe 1 via the installation rod 6, forming a low-resistance air distribution device that filters a certain volume of particulate material in the material.

[0027] Unlike the existing filter media roll 2 which is directly set at the end of the conveying pipe 1, the mounting rod 6 is slidably set through the mounting groove 9 opened on the side of the fixing plate 3, and a lever 7 is also fixed on the side of the mounting plate 5 which is fixedly connected to the output shaft of the drive motor 4. The lever 7 rotates around the filter media roll 2 at a uniform speed as driven by the drive motor 4. The lever 7 applies pressure to one end of the mounting rod 6, causing the mounting rod 6 to advance along the mounting groove 9.

[0028] A slider 10 is slidably arranged inside the mounting groove 9. A spring 12 is abutted between two sliders 10. One slider 10 is pressed against the side of the mounting rod 6 by the spring 12. When the mounting rod 6 is subjected to the pressure of the lever 7, it slides along the mounting groove 9. The spring 12 is compressed and accumulates elastic potential energy. When the lever 7 leaves the pushing range of the mounting rod 6, the elastic potential energy is released, and the mounting rod 6 quickly returns to its original position. This causes the filter media roll 2 wound around the mounting rod 6 to vibrate. The vibrating filter media roll 2 shakes off the material attached to its side, preventing it from being blocked.

[0029] A fixing block 13 is fixed to the side of the fixing plate 3. An adjusting screw 11 is rotatably installed through the side of the fixing block 13. The adjusting screw 11 passes through a slider 10 near one side and is threaded to it, so that the installation position of a slider 10 in the mounting groove 9 can be controlled by adjusting the adjusting screw 11, thereby adjusting the magnitude of the elastic force of the spring 12 on the mounting rod 6.

[0030] In addition, a push block 14 is fixed on the side of the filter media roll 2 corresponding to the lever 7. The push block 14 prevents the filter media roll 2 from being damaged due to frequent contact and sliding of the lever 7.

[0031] The low-resistance air distribution device of this rotary flash dryer transforms the existing fixed mounting rod 6, which supports the filter media roll 2, into a sliding mounting form. A spring 12 structure is used to clamp and adjust the rod. A drive motor 4 drives a lever 7 to rotate periodically around the filter media roll 2. The lever 7 pushes the mounting rod 6 to advance, while simultaneously compressing the spring 12 to accumulate elastic potential energy. After the mounting rod 6 leaves the range of action of the lever 7, the elastic potential energy of the spring 12 suddenly rebounds the mounting rod 6, generating vibration. This vibration shakes off the material adhering to the side of the filter media roll 2, preventing the existing fixed filter media roll 2 from gradually becoming clogged over time.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A low-resistance air distribution device of a rotary flash dryer, comprising a conveying pipe (1) and two filter rolls (2) arranged in a zigzag winding at the end of the conveying pipe (1), characterized in that: The end of the conveying pipe (1) is fixed with a fixing plate (3), and the filter material roll (2) is set at the end of the conveying pipe (1) through the fixing plate (3); A drive motor (4) is installed through the central axis of the fixed disk (3), and a mounting disk (5) is fixed to the side of the drive motor (4). The mounting plate (3) has a mounting rod (6) slidably arranged on its side through an elastic structure. The mounting plate (5) has a lever (7) arranged on its side corresponding to the mounting rod (6). The drive motor (4) drives the mounting plate (5) to rotate at a constant speed. The lever (7) pushes the mounting rod (6), compresses the elastic structure, and causes the lever (7) to move forward and vibrate, periodically removing the surface adhesion layer.

2. A low-resistance air distribution device for a rotary flash dryer as claimed in claim 1, characterized in that: The fixed plate (3) is fixed to the end of the conveying pipe (1) by the connecting rod (8). The side of the fixed plate (3) is provided with an installation groove (9). The installation rod (6) is slidably connected to the fixed plate (3) through the installation groove (9).

3. A low-resistance air distribution device for a rotary flash dryer as claimed in claim 2, characterized in that: A slider (10) is slidably provided on the inner side of the mounting groove (9), and an adjusting screw (11) is provided through the side of one slider (10) away from the mounting rod (6). The adjusting screw (11) is rotatably connected to the fixed plate (3).

4. A low-resistance air distribution device for a rotary flash dryer as claimed in claim 3, characterized in that: A spring (12) is provided between the two sliders (10), one of the sliders (10) is pressed against one side of the mounting rod (6) by the spring (12), and a fixing block (13) is fixed on the side of the fixing plate (3), and the adjusting screw (11) passes through the fixing block (13) and is rotatably connected to it.

5. The low-resistance air distribution device of the rotary flash dryer according to claim 1, characterized in that: The filter media roll (2) has a push block (14) fixed on its side corresponding to the lever (7).

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