A stepped air-drying apparatus

Abstract

The utility model discloses a kind of ladder type air drying equipment, comprising: box, grading drying unit, vibration unit, the box top is connected with the blast fan of arrangement, the box inner wall is provided with annular limit slot, the limit assembly is provided above annular limit slot, grading drying unit is detachably installed in the annular limit slot by limit assembly, the vibration unit is set in the grading drying unit bottom, the grading drying unit is used to classify material, after screening drying, it can be directly removed and stored, the vibration unit is used to generate vibration to grading drying unit, the limit assembly is used to limit the position of grading drying unit. The utility model's grading drying unit adopts three-layer ladder type structure, and through limit assembly detachably installed in annular limit slot not only can make different particle size material automatic separation and stratified air drying, but also limit the position of drying rack in vibration process, and after air drying is completed, it can be directly removed and stored.

Description

Technical Field This utility model relates to the field of air drying equipment technology, specifically to a stepped air drying device. Background Technology In material processing, air drying is a crucial step in ensuring material quality, extending storage time, and facilitating subsequent processing. Materials (such as agricultural products, food ingredients, and industrial granules) often contain a certain amount of moisture in their initial state or after washing. If not treated in time, they are prone to spoilage and mold due to microbial growth during storage. Air drying can reduce the moisture content of materials, inhibit microbial activity, and extend their shelf life. Furthermore, excessive moisture can affect the physical properties of materials (such as hardness and flowability). For example, damp granular materials are prone to clumping, making them difficult to screen, mix, or package. After air drying, the stability of the materials is improved, allowing them to better adapt to subsequent processing procedures (such as crushing, molding, and transportation), ensuring processing accuracy and efficiency.

[0001] However, existing air-drying equipment often suffers from limited functionality and low efficiency. Many devices are unable to grade materials of different sizes, resulting in uneven heating and inconsistent drying effects. Furthermore, the drying components are mostly fixed, making it difficult to disassemble and store them after drying, which increases the space occupied and maintenance difficulty. Some devices also lack effective vibration-assisted structures, causing materials to accumulate on the surface of the drying layer, resulting in incomplete drying. Utility Model Content

[0002] To address the shortcomings of existing technologies, this utility model provides a stepped air-drying device.

[0003] To solve the above problems, this utility model provides the following technical solution: a stepped air drying device, comprising: a box, a graded drying unit, and a vibration unit. A blower is connected to the top of the box, an annular limiting groove is provided on the inner wall of the box, a limiting component is provided above the annular limiting groove, the graded drying unit is detachably installed in the annular limiting groove through the limiting component, and the vibration unit is located at the bottom of the graded drying unit. The graded drying unit includes: a drying rack, a first drying layer, a second drying layer, and a third drying layer. The drying rack has mounting holes on its top and bottom sides for limiting the positioning components. The first drying layer is located on top of the drying rack and has a first screening hole. The second drying layer is located below the first drying layer and has a second screening hole. The third drying layer is located below the second drying layer. The grading and drying unit is used to screen and dry the material, the vibration unit is used to generate vibration in the grading and drying unit, and the limiting component is used to limit the position of the grading and drying unit.

[0004] Preferably, the limiting component includes: a housing, a limiting rod, a limiting block, and a spring. The housing is disposed outside the annular limiting groove. The limiting rod passes through the housing, the annular limiting groove, and the drying rack in sequence. The limiting block is disposed on the surface of the limiting rod. The spring is fitted onto the limiting rod. The top of the spring is fixedly connected to one side of the housing, and the bottom of the spring is fixedly connected to the limiting block. The spring is limited within the housing by the limiting block.

[0005] Preferably, the vibration unit includes a motor, a transmission rod, and an eccentric hammer. The motor is disposed on the side wall of the housing. One end of the transmission rod is connected to the output end of the motor, and the other end of the transmission rod is rotatably connected to the inner wall of the housing. The eccentric hammer is mounted on the transmission rod.

[0006] Preferably, the side of the box is provided with a switch door, the top of the box is provided with a feed inlet, and the side wall of the box is provided with an air outlet.

[0007] Preferably, the cross-sections of the first drying layer, the second drying layer, and the third drying layer are all concave, and the diameter of the first screening hole is larger than that of the second screening hole.

[0008] Preferably, the top and bottom edges of the drying rack are provided with elastic ring pads to cushion the impact of collisions.

[0009] Preferably, the bottom of the drying rack is provided with a rubber pad to buffer the impact force when the eccentric hammer strikes.

[0010] Preferably, four limiting components are provided, which are used to limit the position of the drying rack.

[0011] Compared with the prior art, this utility model provides a stepped air drying device, which has the following beneficial effects: 1. The grading drying unit of this utility model adopts a three-layer stepped structure. The diameter of the first screening hole of the first drying layer is larger than that of the second screening hole of the second drying layer. With the action of the vibration unit, materials of different particle sizes can be automatically separated and dried in layers, ensuring a more uniform drying effect for materials of different specifications.

[0012] 2. The graded drying unit of this utility model can be detachably installed in the annular limiting groove through the limiting component. It can not only limit the position of the drying rack during vibration, but also directly remove and store it after air drying. The material can be directly stored in each drying layer and taken out when needed. When drying needs to be started again, only the drying rack needs to be replaced, which reduces the space occupied by the equipment and improves the flexibility of equipment use.

[0013] 3. The vibration unit of this utility model generates continuous vibration through the motor-driven transmission rod and eccentric hammer, which promotes the material to move and disperse on each drying layer, avoiding the accumulation of airflow blind spots. At the same time, in conjunction with the airflow input by the blower at the top of the chamber, the contact area between the material and the drying airflow is greatly increased, accelerating the evaporation of moisture.

[0014] 4. The elastic ring pads on the top and bottom edges of the drying rack of this utility model can buffer the impact force during equipment operation, the rubber pad at the bottom can effectively reduce the impact force when the eccentric hammer strikes, and the spring structure in the limiting component can provide a certain shock absorption effect and reduce component wear while ensuring the stability of the grading drying unit. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the internal structure of the present invention from the front. Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 This is a schematic diagram of the structure of the graded drying unit of this utility model; Figure 5 This is a front view structural diagram of the present utility model; Figure 6 This is a schematic diagram of the rear view structure of this utility model.

[0016] In the diagram: 1. Box body; 101. Annular limiting groove; 102. Feed inlet; 103. Air outlet; 104. Opening and closing door; 2. Blower; 3. Limiting assembly; 301. Housing; 302. Limiting rod; 303. Limiting block; 304. Spring; 4. Drying rack; 401. Mounting hole; 402. Rubber pad; 403. Elastic ring pad; 5. First drying layer; 501. First screening hole; 6. Second drying layer; 601. Second screening hole; 7. Third drying layer; 8. Motor; 9. Transmission rod; 10. Eccentric hammer. Detailed Implementation

[0017] 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.

[0018] Please see Figures 1-6This application provides a new technical solution: a stepped air drying device, including: a box 1, a graded drying unit, and a vibration unit. A blower 2 is connected to the top of the box 1. An annular limiting groove 101 is provided on the inner wall of the box 1. A limiting component 3 is provided above the annular limiting groove 101. The graded drying unit is detachably installed in the annular limiting groove 101 through the limiting component 3. The vibration unit is located at the bottom of the graded drying unit. The graded drying unit includes: a drying rack 4, a first drying layer 5, a second drying layer 6, and a third drying layer 7. The drying rack 4 has mounting holes 401 on its top and bottom sides for limiting the positioning component 3. The first drying layer 5 is located on top of the drying rack 4 and has a first screening hole 501. The second drying layer 6 is located below the first drying layer 5 and has a second screening hole 601. The third drying layer 7 is located below the second drying layer 6. The grading and drying unit is used to screen and dry the material, the vibration unit is used to generate vibration in the grading and drying unit, and the limiting component 3 is used to limit the position of the grading and drying unit.

[0019] In operation, after the material enters from the housing 1, it falls onto the first drying layer 5 of the grading and drying unit. The vibration unit is activated, causing the material to vibrate on the first drying layer 5. The first drying layer 5 has a first screening hole 501; smaller materials pass through this hole and fall to the second drying layer 6 below. The second drying layer 6 has a second screening hole 601 with a diameter smaller than the first screening hole 501; even finer materials pass through this hole and fall to the third drying layer 7, thus achieving material grading and screening. Simultaneously, the blower 2 at the top of the housing 1 operates. The machine uses a RAETTS-85 turbine blower with a large flow range, which can meet the air volume requirements of different scale air drying operations. The blower 2 blows air into the box, and the air flows in the box, contacting the different levels of materials on the first drying layer 5, the second drying layer 6 and the third drying layer 7, and removing the moisture from the materials. The limiting component 3 cooperates with the mounting holes 401 on the top and bottom sides of the drying rack 4 to stably limit the grading drying unit within the annular limiting groove 101, ensuring that the grading drying unit is stable in position during vibration and air drying, and ensuring that the screening and drying work is carried out in an orderly manner.

[0020] In some embodiments, the limiting component 3 includes: a housing 301, a limiting rod 302, a limiting block 303, and a spring 304. The housing 301 is disposed outside the annular limiting groove 101. The limiting rod 302 passes sequentially through the housing 301, the annular limiting groove 101, and the drying rack 4. The limiting block 303 is disposed on the surface of the limiting rod 302. The spring 304 is fitted onto the limiting rod 302. The top of the spring 304 is fixedly connected to one side of the housing 301, and the bottom of the spring 304 is fixedly connected to the limiting block 303. The spring 304 is confined within the housing 301 by the limiting block 303. Pulling the limiting rod 302 causes it to compress the spring 304 by driving the limiting block 303. After the drying rack 4 is placed into the annular limiting groove 101, the limiting rod 302 is released, and the spring 304 returns to its original position, pushing the limiting rod 302 into the mounting hole 401 of the drying rack 4.

[0021] In some embodiments, the vibration unit includes a motor 8, a transmission rod 9, and an eccentric hammer 10. The motor 8 is disposed on the side wall of the housing 1. One end of the transmission rod 9 is connected to the output end of the motor 8, and the other end of the transmission rod 9 is rotatably connected to the inner wall of the housing 1. The eccentric hammer 10 is mounted on the transmission rod 9. The motor 8 is a BLDC inverter motor, which operates smoothly and with low noise. The motor 8 drives the transmission rod 9 to rotate, causing the eccentric hammer 10 to perform eccentric motion, generating periodic vibrations that are transmitted to the grading and drying unit.

[0022] In some embodiments, a switch door 104 is provided on the side of the housing 1, a feed inlet 102 is provided on the top of the housing 1, and an air outlet 103 is provided on the side wall of the housing 1. Materials enter the housing 1 through the feed inlet 102. Opening the switch door 104 allows for the disassembly and maintenance of the components inside the housing 1. A blower 2 supplies air to the housing 1, and the air is discharged through the air outlet 103.

[0023] In some embodiments, the cross-sections of the first drying layer 5, the second drying layer 6, and the third drying layer 7 are all concave, and the diameter of the first screening hole 501 is larger than that of the second screening hole 601. The concave cross-section of each drying layer can temporarily hold the material, and with the help of vibration, it can prevent the material from scattering to the edges during the screening process.

[0024] In some embodiments, the top and bottom edges of the drying rack 4 are provided with elastic ring pads 403 to cushion the impact of collisions.

[0025] In some embodiments, a rubber pad 402 is provided at the bottom of the drying rack 4 to buffer the impact force when the eccentric hammer 10 strikes. The rubber pad 402 directly contacts the eccentric hammer 10, reducing the impact force during impact and protecting the drying rack 4.

[0026] In some embodiments, four limiting components 3 are provided, which are used to limit the position of the drying rack 4. The springs 304 in the limiting components 3 may extend and retract slightly during vibration, which ensures that the drying rack 4 does not shift, and provides a certain buffer space for vibration, thus maintaining the overall structural stability.

[0027] Working principle: When using this equipment, the grading drying unit is first fixed in the annular limiting groove 101 inside the box 1 by the limiting component 3. Pulling the limiting rod 302 causes the limiting block 303 to compress the spring 304. After the drying rack 4 is placed into the annular limiting groove 101, the limiting rod 302 is released, and the spring 304 returns to its original position, pushing the limiting rod 302 into the mounting hole 401 of the drying rack 4 to complete the fixing (the four limiting components 3 limit the material synchronously to ensure structural stability). The switch door 104 on the side of the box 1 is closed, and the material is fed in from the top feed port 102 and falls into the first drying layer 5. Each drying layer has a concave cross-section to temporarily receive the material. The top of the box 1 is then started. The blower 2 of the unit sends external drying airflow into the chamber 1, flowing from top to bottom through each drying layer, making full contact with the material to remove moisture. The humid airflow is discharged through the air outlet 103 on the side wall of the chamber 1, forming a continuous airflow and providing a stable drying environment for the air drying process. At the same time, the vibration unit is activated, and the motor 8 drives the transmission rod 9 to rotate, causing the eccentric hammer 10 to move eccentrically, generating periodic vibrations that are transmitted to the grading drying unit. Under the action of vibration, the material on the first drying layer 5 is dispersed, and the material with a particle size smaller than the first sieve hole 501 falls through the sieve hole into the second drying layer 6; the material on the second drying layer 6 continues to be dispersed by vibration, and the material with a particle size smaller than the first sieve hole 501 falls into the second drying layer 6. Material from the second screening hole 601 falls into the third drying layer 7, achieving automatic grading of materials of different particle sizes. The diameter of the first screening hole 501 is larger than that of the second screening hole 601. The concave design of the drying layer, combined with vibration, prevents material from scattering to the edges during screening, improving grading efficiency. The elastic ring pads 403 at the top and bottom of the drying rack 4 can buffer the impact force of the drying rack 4 against the housing 1 or other components when the equipment vibrates, reducing noise and wear. The rubber pad 402 at the bottom of the drying rack 4 directly contacts the eccentric hammer 10, reducing the impact force during impact and protecting the structure of the drying rack 4. The spring 304 in the limiting component 3 may slightly expand and contract during vibration, ensuring... The drying rack 4 does not shift and provides a certain buffer space for vibration, maintaining the overall structural stability. After the material is dried, the blower 2 and motor 8 are turned off, the switch door 104 is opened, and the fixing of the drying rack 4 is released by pulling the limit rod 302. The entire grading drying unit can be taken out. The dried material can be collected directly from each drying layer or stored together with the drying rack 4. When the material needs to be temporarily stored in the drying rack 4, but needs to be dried again, only a new drying rack 4 needs to be replaced for drying again. The detachable design of the grading drying unit facilitates subsequent reuse, effectively completing the drying of the material and eliminating the need for material transfer for direct storage.

[0028] 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 stepped air-drying device, characterized in that, include: The box (1), the grading drying unit, and the vibration unit are provided. A blower (2) is connected to the top of the box (1). An annular limiting groove (101) is provided on the inner wall of the box (1). A limiting component (3) is provided above the annular limiting groove (101). The grading drying unit is detachably installed in the annular limiting groove (101) through the limiting component (3). The vibration unit is located at the bottom of the grading drying unit. The graded drying unit includes: a drying rack (4), a first drying layer (5), a second drying layer (6), and a third drying layer (7). The drying rack (4) has mounting holes (401) on its top and bottom sides for limiting the positioning component (3). The first drying layer (5) is located on the top of the drying rack (4) and has a first screening hole (501). The second drying layer (6) is located below the first drying layer (5) and has a second screening hole (601). The third drying layer (7) is located below the second drying layer (6). The grading and drying unit is used to screen and dry the material, the vibration unit is used to generate vibration in the grading and drying unit, and the limiting component (3) is used to limit the position of the grading and drying unit.

2. The stepped air-drying equipment according to claim 1, characterized in that, The limiting component (3) includes: a housing (301), a limiting rod (302), a limiting block (303), and a spring (304). The housing (301) is disposed outside the annular limiting groove (101). The limiting rod (302) passes through the housing (301), the annular limiting groove (101), and the drying rack (4) in sequence. The limiting block (303) is disposed on the surface of the limiting rod (302). The spring (304) is fitted onto the limiting rod (302). The top of the spring (304) is fixedly connected to one side of the housing (301), and the bottom of the spring (304) is fixedly connected to the limiting block (303). The spring (304) is limited within the housing (301) by the limiting block (303).

3. The stepped air-drying equipment according to claim 1, characterized in that, The vibration unit includes a motor (8), a transmission rod (9), and an eccentric hammer (10). The motor (8) is located on the side wall of the housing (1). One end of the transmission rod (9) is connected to the output end of the motor (8), and the other end of the transmission rod (9) is rotatably connected to the inner wall of the housing (1). The eccentric hammer (10) is mounted on the transmission rod (9).

4. The stepped air-drying equipment according to claim 1, characterized in that, The box (1) is provided with a switch door (104) on the side, and a feed inlet (102) is provided on the top of the box (1). The box (1) is also provided with an air outlet (103) on the side wall.

5. A stepped air-drying device according to claim 1, characterized in that, The cross-sections of the first drying layer (5), the second drying layer (6) and the third drying layer (7) are all concave, and the diameter of the first sieve hole (501) is larger than that of the second sieve hole (601).

6. The stepped air-drying equipment according to claim 1, characterized in that, The drying rack (4) has elastic ring pads (403) at the top and bottom edges to cushion the impact of collisions.

7. A stepped air-drying device according to claim 1, characterized in that, The bottom of the drying rack (4) is provided with a rubber pad (402) to buffer the impact force when the eccentric hammer (10) strikes.

8. A stepped air-drying device according to claim 1, characterized in that, The limiting components (3) are configured to be four, and the limiting components (3) are used to limit the position of the drying rack (4).

Images