A fluidized bed dryer with multiple drying functions

Abstract

The utility model belongs to the technical field of boiling drying device, concretely relates to a kind of boiling dryer with multiple drying function;Including cylinder, the cylinder top is provided with material outlet, the side of cylinder is provided with hot air inlet and feed inlet;The inside of cylinder is provided with upper material screen, lower material screen and material plate from top to bottom;The inside of cylinder is rotatably provided with long axle rod, long axle rod is provided with upper crushing assembly and lower crushing assembly, the upper crushing assembly is located between the upper material screen and the lower material screen, the lower crushing assembly is located between the lower material screen and the material plate;The utility model can be while to material hot air boiling drying treatment, to the particle material that due to humidity too much condensation is group is carried out crushing processing, improve the efficiency and quality of material boiling drying.

Description

Technical Field

[0001] This utility model belongs to the technical field of fluidized bed drying devices, specifically relating to a fluidized bed dryer with multiple drying functions. Background Technology

[0002] A fluidized bed dryer is a device that uses a hot airflow to suspend and fluidize wet granular materials, achieving efficient drying. Its core principle is to enhance heat and mass transfer through sufficient contact between the airflow and the material, making it suitable for drying granular and powdery materials. The entire working system of a fluidized bed dryer mainly consists of an air filtration and heating system, a fluidized bed dryer unit, a material conveying and discharging system, and a dust removal and exhaust gas treatment system. The air filter removes impurities from the air, ensuring the cleanliness of the airflow entering the dryer. The air heater heats the air to the set temperature, providing the heat energy required for drying. The fluidized bed dryer unit contains the wet material, which boils under the action of the hot airflow. The material conveying and discharging system evenly adds the wet material to the dryer, and the dried material is discharged from the bottom or side. The dust removal and exhaust gas treatment system recovers fine powder carried by the airflow, reducing material loss and discharging exhaust gas while maintaining a negative pressure state inside the dryer. Fluidized bed dryers are efficient and flexible drying equipment, widely used in the pharmaceutical, food, and chemical industries. Its core advantage lies in achieving full contact between materials and hot air flow through fluidization technology, thereby improving drying efficiency. In practical applications, it is necessary to select equipment parameters reasonably according to the characteristics of the materials and strengthen equipment maintenance to ensure drying effect and production safety. With the continuous advancement of technology, fluidized bed dryers will play an important role in more fields.

[0003] Patent application CN202322792526.5 discloses a fluidized bed dryer, including a dryer body with an internal support mesh and a support frame on its surface. A connecting pipe is located on the bottom side of the dryer body, and a heater is located on the side of the connecting pipe away from the dryer body. A stirring device is located inside the dryer body, and a filter is located on the surface of the heater. The stirring device includes a connecting frame with a rotating rod rotatably inserted into its side. When using the stirring device, the rotating rod rotates within the connecting frame, causing the stirring blades on its surface to effectively stir the accumulated medicine, ensuring it comes into contact with the hot air blown from the heater, thus significantly increasing the dryer's efficiency. However, when using the aforementioned fluidized bed dryer for material drying, excessive initial material moisture can easily cause clumping and particle formation during processing, affecting drying efficiency and quality. Therefore, it is necessary to provide a novel fluidized bed dryer with multiple drying functions. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a fluidized bed dryer with multiple drying functions. It can simultaneously perform hot air fluidized bed drying on materials and crush granular materials that have agglomerated due to excessive humidity, thereby improving the efficiency and quality of fluidized bed drying.

[0005] The purpose of this utility model is achieved as follows: a fluidized bed dryer with multiple drying functions includes a cylinder, a material outlet at the top of the cylinder, a hot air inlet and a feed inlet on the side of the cylinder; an upper material screen, a lower material screen and a material plate are arranged from top to bottom inside the cylinder; a long shaft is rotatably arranged inside the cylinder, and an upper crushing component and a lower crushing component are arranged on the long shaft, the upper crushing component is located between the upper material screen and the lower material screen, and the lower crushing component is located between the lower material screen and the material plate.

[0006] Furthermore, an annular air duct is provided at the bottom of the cylinder body, the hot air inlet is connected to the annular air duct, and a guide pipe is connected to the annular air duct. The upper part of the guide pipe passes through the material plate; the treated hot air can be sent into the annular air duct through the hot air inlet.

[0007] Furthermore, multiple air guide vertical pipes are provided and evenly arranged along the circumference of the annular air duct. The upper end of each air guide vertical pipe passes through the material plate and is connected to an air outlet box, which is provided with a hot air outlet. After the treated hot air enters the annular air duct, it flows along the annular air duct and through each of the air guide vertical pipes, and finally is sprayed into the cylinder at high speed through the hot air outlets provided on each of the air outlet boxes.

[0008] Furthermore, a guide box is provided at the top of the cylinder, and a guide box bottom outlet is provided at the bottom of the guide box, and the material outlet is connected to the guide box; the guide box is connected to the inside of the cylinder through the guide box bottom outlet provided at its bottom.

[0009] Furthermore, the lower crushing assembly includes a first sleeve fixedly connected to the long shaft, a first frame plate connected to the first sleeve, and a first crushing mesh disposed inside the first frame plate; multiple first frame plates are disposed and evenly distributed around the long shaft as the center, and each first frame plate can rotate together under the drive of the long shaft.

[0010] Furthermore, a first connector is fixedly provided on the side of the first sleeve, and a first connecting rod is provided on one end of the first frame plate. The first connecting rod is connected to the first connector. The first connecting rod and the first connector are connected by a plug-in connection. After the first connecting rod is inserted into the first connector, it can be limited and locked by bolts or pins. The structure is simple and reasonable, and the connection is convenient and quick.

[0011] Furthermore, the upper crushing assembly includes a second sleeve fixedly connected to the long shaft, a second frame plate connected to the second sleeve, and a second crushing mesh disposed inside the second frame plate; multiple second frame plates are disposed and evenly distributed around the long shaft as the center, and each second frame plate can rotate together under the drive of the long shaft.

[0012] Furthermore, a second connector is fixedly provided on the side of the second sleeve, and a second connecting rod is provided on one end of the second frame plate. The second connecting rod is connected to the second connector. The second connecting rod and the second connector are connected by a plug-in connection. After the second connecting rod is inserted into the second connector, it can be locked by bolts or pins. The structure is simple and reasonable, and the connection is convenient and quick.

[0013] Furthermore, the upper material screen is provided with a first screen hole, and the lower material screen is provided with a second screen hole, the diameter of the second screen hole being larger than that of the first screen hole; a fixing ring plate is provided on the inner wall of the cylinder, and the upper material screen and the lower material screen are respectively fixed to the inside of the cylinder by the corresponding fixing ring plate.

[0014] Furthermore, a drive motor is provided at the top of the cylinder, and the output shaft of the drive motor is connected to the long shaft; the long shaft can be driven to rotate by the drive motor.

[0015] The beneficial effects of this utility model are as follows: This utility model provides a fluidized bed dryer with multiple drying functions. The top of the cylinder has a material outlet, and the side of the cylinder has a hot air inlet and a feed inlet. Inside the cylinder, from top to bottom, there are an upper material screen, a lower material screen, and a material plate. Material can enter the cylinder through the feed inlet and be received by the material plate. Hot air can enter the cylinder through the hot air inlet and heat the material inside. A long shaft is rotatably mounted inside the cylinder, and an upper crushing component and a lower crushing component are mounted on the long shaft. The upper crushing component is located between the upper material screen and the lower material screen. Between the screens, the lower crushing component is located between the lower material screen and the material plate. When hot air blows the material into the cylinder, the material is granularized through the upper and lower material screens, and the granular material is crushed by the upper and lower crushing components to prevent the formation of agglomerated granular material, thus ensuring the quality and efficiency of fluidized bed drying. This utility model provides a fluidized bed dryer with multiple drying functions. It has a reasonable structure and is easy to operate. It can simultaneously perform hot air fluidized bed drying on materials and crush granular materials that have agglomerated due to excessive humidity, thereby improving the efficiency and quality of fluidized bed drying. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a fluidized bed dryer with multiple drying functions according to the present invention.

[0017] Figure 2 This is a front view structural schematic diagram of a fluidized bed dryer with multiple drying functions according to this utility model.

[0018] Figure 3 This is a side view of the structure of a fluidized bed dryer with multiple drying functions according to this utility model.

[0019] Figure 4 This is a top view of the structure of a fluidized bed dryer with multiple drying functions according to this utility model.

[0020] Figure 5 This is a schematic diagram of the internal structure of the cylinder of a fluidized bed dryer with multiple drying functions according to this utility model.

[0021] Figure 6 This is a schematic diagram of the bottom connection of the guide box of a fluidized bed dryer with multiple drying functions according to this utility model.

[0022] Figure 7 This is a schematic diagram of the air outlet box of a fluidized bed dryer with multiple drying functions according to this utility model.

[0023] Figure 8This is a schematic diagram of the structure of the lower crushing component of a fluidized bed dryer with multiple drying functions according to this utility model.

[0024] Figure 9 This is a schematic diagram of the structure of the crushing component on a fluidized bed dryer with multiple drying functions according to this utility model.

[0025] Figure 10 This is a schematic diagram of the upper and lower material screens of a fluidized bed dryer with multiple drying functions according to this utility model. Detailed Implementation

[0026] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0027] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. 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.

[0028] It should be noted that all directional indications (such as up-down-left-right-forward-backward...) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly. The connection can be a direct connection or an indirect connection.

[0029] like Figure 1-10 As shown, a fluidized bed dryer with multiple drying functions includes a cylinder 3. A material outlet 5 is provided at the top of the cylinder 3, and a hot air inlet 1 and a feed inlet 2 are provided on the side of the cylinder 3. An upper material screen 14, a lower material screen 12, and a material plate 10 are arranged from top to bottom inside the cylinder 3. A long shaft 15 is rotatably arranged inside the cylinder 3. An upper crushing component 13 and a lower crushing component 11 are arranged on the long shaft 15. The upper crushing component 13 is located between the upper material screen 14 and the lower material screen 12, and the lower crushing component 11 is located between the lower material screen 12 and the material plate 10.

[0030] Furthermore, in one embodiment, an annular air duct 7 is provided at the bottom of the interior of the cylinder 3, the hot air inlet 1 is connected to the annular air duct 7, and a guide pipe 8 is connected to the annular air duct 7. The upper part of the guide pipe 8 passes through the material plate 10. The treated hot air can be sent into the annular air duct 7 through the hot air inlet 1, and then the hot air can be sent into the cylinder space above the material plate 10 through the guide pipe 8 connected to the annular air duct 7, so as to perform hot air heating treatment on the material that enters the cylinder 3 from the feed port 2 and falls on the material plate 10.

[0031] Furthermore, in one embodiment, multiple air guide vertical pipes 8 are provided and evenly arranged along the circumference of the annular air duct 7. The upper end of the air guide vertical pipe 8 passes through the material plate 10 and is connected to an air outlet box 9. The air outlet box 9 is provided with a hot air outlet 17. After the treated hot air enters the annular air duct 7, it flows along the annular air duct 7 and through each of the air guide vertical pipes 8. Finally, it is sprayed at high speed into the cylinder 3 through the hot air outlet 17 provided on each of the air outlet boxes 9, so as to heat the material on the material plate 10. The hot air sprayed at high speed from each of the hot air outlets 17 blows the material on the material plate 10 up and forms hot air turbulence, which drives the material to move upwards in the cylinder 3.

[0032] Furthermore, in one embodiment, a guide box 6 is provided at the top of the cylinder 3, and a guide box bottom outlet 16 is provided at the bottom of the guide box 6. The material outlet 5 is connected to the guide box 6. The guide box 6 is connected to the inside of the cylinder 3 through the guide box bottom outlet 16. The hot air injected at high speed through the hot air outlet 17 blows the material on the material plate 10 up and forms a hot air turbulence, which drives the material to move upwards in the cylinder 3. The material passes through the lower crushing component 11, the lower material screen 12, the upper crushing component 13, and the upper material screen 14 in sequence. The material that forms particles can be graded and screened by the lower material screen 12 and the upper material screen 14, and crushed by the lower crushing component 11 and the upper crushing component 13. Finally, the material enters the guide box 6 through the guide box bottom outlet 16 under the drive of the hot air and is discharged through the material outlet 5 under its guidance to enter the next process.

[0033] Furthermore, in one embodiment, the lower crushing assembly 11 includes a first sleeve 18 fixedly connected to the long shaft 15, a first frame plate 19 connected to the first sleeve 18, and a first crushing mesh 20 disposed inside the first frame plate 19; multiple first frame plates 19 are disposed and evenly distributed around the long shaft 15 as the center, and each first frame plate 19 can rotate together under the drive of the long shaft 15, thereby impacting and cutting the agglomerated granular material through the first crushing mesh 20 disposed thereon, avoiding some material from agglomerating into particles due to excessive initial moisture and excessive accumulation.

[0034] Furthermore, in one embodiment, a first connector 22 is fixedly provided on the side of the first sleeve 18, and a first connecting rod 21 is provided on one end of the first frame plate 19. The first connecting rod 21 is connected to the first connector 22. The first connecting rod 21 and the first connector 22 are connected by a plug-in connection. After the first connecting rod 21 is inserted into the first connector 22, it can be limited and locked by bolts or pins. The structure is simple and reasonable, and the connection is convenient and quick.

[0035] Furthermore, in one embodiment, the upper crushing assembly 13 includes a second sleeve 23 fixedly connected to the long shaft 15, a second frame plate 24 connected to the second sleeve 23, and a second crushing mesh 25 disposed inside the second frame plate 24; multiple second frame plates 24 are disposed and evenly distributed around the long shaft 15 as the center, and each second frame plate 24 can rotate together under the drive of the long shaft 15, thereby impacting and cutting the agglomerated granular material through the second crushing mesh 25 disposed thereon, so as to prevent some material from agglomerating into particles due to excessive initial moisture and excessive aggregation; the second frame plate 24 is inclined, and the mesh of the second crushing mesh 25 is smaller than that of the first crushing mesh 20, so as to further crush the material screened by the lower material screen 12.

[0036] Furthermore, in one embodiment, a second connector 27 is fixedly provided on the side of the second sleeve 23, and a second connecting rod 26 is provided on one end of the second frame plate 24. The second connecting rod 26 is connected to the second connector 27. The second connecting rod 26 and the second connector 27 are connected by a plug-in connection. After the second connecting rod 26 is inserted into the second connector 27, it can be limited and locked by bolts or pins. The structure is simple and reasonable, and the connection is convenient and quick.

[0037] Furthermore, in one embodiment, the upper material screen 14 is provided with a first screen hole 30, and the lower material screen 12 is provided with a second screen hole 28, the diameter of the second screen hole 28 being larger than that of the first screen hole 30; a fixing ring plate 29 is provided on the inner wall of the cylinder 3, and the upper material screen 14 and the lower material screen 12 are respectively fixed inside the cylinder 3 by the corresponding fixing ring plate 29; the material can be grouped and screened by the upper material screen 14 and the lower material screen 12, and crushed by the lower crushing component 11 and the upper crushing component 13, so as to ensure the drying efficiency and material particle size of the device.

[0038] Furthermore, in one embodiment, a drive motor 4 is provided at the top of the cylinder 3, and the output shaft of the drive motor 4 is connected to the long shaft 15; the drive motor 4 can drive the long shaft 15 to rotate, thereby driving the upper crushing component 13 and the lower crushing component 11 provided inside the cylinder 3 to rotate, so as to crush the material that has formed particles inside the cylinder 3 through the upper crushing component 13 and the lower crushing component 11.

[0039] In summary, this utility model discloses a fluidized bed dryer with multiple drying functions. The top of the cylindrical body 3 is provided with a material outlet 5, and the side of the cylindrical body 3 is provided with a hot air inlet 1 and a feed inlet 2. Inside the cylindrical body 3, from top to bottom, are arranged an upper material screen 14, a lower material screen 12, and a material plate 10. Material can enter the cylindrical body 3 through the feed inlet 2 and be received by the material plate 10. Hot air can enter the cylindrical body 3 through the hot air inlet 1 and heat the material inside. A long shaft 15 is rotatably mounted inside the cylindrical body 3, and an upper crushing assembly 13 and a lower crushing assembly 11 are mounted on the long shaft 15. The upper crushing assembly 13 is located between the upper material screen 14 and the lower material screen 12. Between the lower material screen 12, the lower crushing component 11 is located between the lower material screen 12 and the material plate 10. When hot air blows the material and moves inside the cylinder 3, the material is granularized by the upper material screen 14 and the lower material screen 12, and the granular material is crushed by the upper crushing component 13 and the lower crushing component 11, avoiding the formation of clumps of granular material and ensuring the quality and efficiency of fluidized bed drying. This utility model provides a fluidized bed dryer with multiple drying functions. It has a reasonable structure and is easy to operate. It can crush granular material that has clumped due to excessive humidity while performing hot air fluidized bed drying, thereby improving the efficiency and quality of fluidized bed drying.

[0040] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0041] 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 claimed utility model.

Claims

1. A fluidized bed dryer with multiple drying functions, comprising a cylindrical body (3), characterized in that, The top of the cylinder (3) is provided with a material outlet (5), and the side of the cylinder (3) is provided with a hot air inlet (1) and a feed inlet (2); the inside of the cylinder (3) is provided with an upper material screen (14), a lower material screen (12) and a material plate (10) from top to bottom; a long shaft (15) is rotatably provided inside the cylinder (3), and an upper crushing component (13) and a lower crushing component (11) are provided on the long shaft (15). The upper crushing component (13) is located between the upper material screen (14) and the lower material screen (12), and the lower crushing component (11) is located between the lower material screen (12) and the material plate (10).

2. A fluidized bed dryer with multiple drying functions according to claim 1, characterized in that, The bottom of the cylinder (3) is provided with an annular air duct (7), the hot air inlet (1) is connected to the annular air duct (7), and the annular air duct (7) is connected with a guide pipe (8). The upper part of the guide pipe (8) passes through the material plate (10).

3. A fluidized bed dryer with multiple drying functions according to claim 2, characterized in that, Multiple air guide vertical pipes (8) are provided and are evenly arranged along the circumference of the annular air duct (7). The upper end of the air guide vertical pipe (8) passes through the material plate (10) and is connected to the air outlet box (9). The air outlet box (9) is provided with a hot air outlet (17).

4. A fluidized bed dryer with multiple drying functions according to claim 3, characterized in that, The top of the cylinder (3) is provided with a guide box (6), the bottom of the guide box (6) is provided with a guide box bottom outlet (16), and the material outlet (5) is connected to the guide box (6).

5. A fluidized bed dryer with multiple drying functions according to claim 1, characterized in that, The lower crushing assembly (11) includes a first sleeve (18) fixedly connected to the long shaft (15), a first frame plate (19) connected to the first sleeve (18), and a first crushing mesh (20) disposed inside the first frame plate (19).

6. A fluidized bed dryer with multiple drying functions according to claim 5, characterized in that, A first connector (22) is fixedly provided on the side of the first sleeve (18), and a first connecting rod (21) is provided on one end of the first frame plate (19). The first connecting rod (21) is connected to the first connector (22).

7. A fluidized bed dryer with multiple drying functions according to claim 1, characterized in that, The upper crushing component (13) includes a second sleeve (23) fixedly connected to the long shaft (15), a second frame plate (24) connected to the second sleeve (23), and a second crushing mesh (25) provided inside the second frame plate (24).

8. A fluidized bed dryer with multiple drying functions according to claim 7, characterized in that, A second connector (27) is fixedly provided on the side of the second sleeve (23), and a second connecting rod (26) is provided on one end of the second frame plate (24). The second connecting rod (26) is connected to the second connector (27).

9. A fluidized bed dryer with multiple drying functions according to claim 1, characterized in that, The upper material screen (14) is provided with a first screen hole (30), and the lower material screen (12) is provided with a second screen hole (28), the diameter of the second screen hole (28) being larger than that of the first screen hole (30).

10. A fluidized bed dryer with multiple drying functions according to claim 1, characterized in that, The top of the cylinder (3) is provided with a drive motor (4), and the output shaft of the drive motor (4) is connected to the long shaft (15).

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