A drying device for the production of nanocellulose materials

Abstract

The present invention discloses a drying device for producing nanocellulose materials, comprising: a connecting pipe. Among them, an air heater is connected through the bottom end of the connecting pipe to generate hot air flowing upward in the connecting pipe. The top end of the connecting pipe is fixedly connected with a storage device for storing the nanocellulose materials to be dried and discharging the cellulose materials in batches. At the bottom end of the storage device, there is a transmission device that conveys the materials discharged in batches from the storage device to the drying area by relying on the weight. A cloth device for evenly distributing the materials and facilitating drying is arranged in the connecting pipe. In the present invention, the storage device can effectively control the discharge amount of the materials. Through the ingenious cooperation of the baffle plate and the inner baffle of the anti-blocking frame, the automatic adjustment is realized by using the change in the weight of the transmission device, and the amount of materials entering the transmission device can be accurately controlled to avoid excessive or insufficient materials. Moreover, the designs of the anti-blocking frame and the guide block can effectively prevent the materials from being blocked and ensure the smooth discharge of the materials.

Description

Technical Field

[0001] The present invention relates to the technical field of drying equipment, and specifically relates to a drying equipment for the production of nanocellulose materials. Background Art

[0002] Nanocellulose materials are a class of nanoscale materials prepared from cellulose matrices by physical, chemical or biological methods. Cellulose is one of the most abundant natural polymers on Earth, mainly derived from plant cell walls. Through specific treatment means, cellulose can be decomposed into fibers with nanoscale characteristics, and these fibers are called nanocellulose. The production of nanocellulose materials is a complex process involving multiple steps, including raw material selection, pretreatment, preparation methods, post-treatment and processing of the final product. During the production process of nanocellulose materials, drying is a key step to remove moisture from the materials and improve the stability and storage properties of the materials.

[0003] Chinese Patent with publication number CN222086561U discloses a cellulose drying device, the structure of which includes a frame; a guiding assembly for turning the material is provided on the wall surface of the frame. The guiding assembly includes a bottom plate, a guiding body and a shovel plate. The same bottom plates are fixedly connected to the opposite side wall surfaces of the frame. A guiding body is installed on the wall surface of each bottom plate. The guiding body can turn the material shoveled up by the bottom plate to one side. The same shovel plates are elastically connected to the wall surface of each bottom plate. The cellulose is shoveled up by the shovel plate, and the cellulose is pushed by the conveyor belt and then reaches the position where the guiding body is located. Through the arc surface guiding of the guiding body, the specific shape of the guiding body is as shown in the figure. The shoveled-up cellulose is turned by the guiding body, so as to realize the position exchange of the top and bottom surfaces of the cellulose, which can better dry the cellulose, reduce the drying dead angle, and at the same time, there is no need for an additional power structure to turn the cellulose, having the characteristics of strong practicability and simple structure.

[0004] However, the above-mentioned prior art has the following deficiencies: during use, once there is too much nanocellulose material, it will cause accumulation, significantly reducing the drying efficiency. The accumulated nanocellulose material will hinder air circulation and heat transfer, making it difficult for hot air to effectively penetrate the material layer, and the internal humidity cannot be quickly dissipated. This decrease in drying efficiency not only prolongs the time of the entire drying process, resulting in a significant extension of the production cycle, but also in order to achieve the desired drying effect, it may be necessary to increase the temperature of the drying equipment or extend the drying time, which directly increases energy consumption and raises production costs. Summary of the Invention

[0005] The object of the present invention is to provide a drying device for producing nano-cellulose materials in order to solve the problems that during use, once there is too much nano-cellulose material, it will cause accumulation, significantly reducing the drying efficiency. The accumulated nano-cellulose material will hinder air circulation and heat transfer, making it difficult for hot air to effectively penetrate the material layer, and the internal humidity cannot be quickly dissipated. The decline in this drying efficiency not only prolongs the time of the entire drying process, resulting in a significant extension of the production cycle, but also in order to achieve the desired drying effect, it may be necessary to increase the temperature of the drying equipment or extend the drying time, which directly increases energy consumption and raises production costs.

[0006] To achieve the above object, the present invention provides the following technical solution: A drying device for producing nano-cellulose materials, comprising: a connecting pipe. Among them, an air heater is connected through the bottom end of the connecting pipe to generate hot air flowing upward in the connecting pipe. The top end of the connecting pipe is fixedly connected with a storage device for storing nano-cellulose materials to be dried and discharging the cellulose materials in batches. The bottom end of the storage device is provided with a transmission device that transports the materials discharged in batches from the storage device by weight to the drying area. A cloth device for evenly distributing the materials and facilitating drying is arranged in the connecting pipe;

[0007] The storage device includes a storage hopper fixedly connected to the top end of the connecting pipe. A baffle is clamped in the discharge port at the bottom end of the storage hopper. A anti-blocking frame is fixedly connected to the inner bottom end of the storage hopper, and the anti-blocking frame is arranged above the discharge port at the bottom end of the storage hopper. A discharge slot is opened at the side end of the anti-blocking frame. A sliding slot is opened on the inner wall of the anti-blocking frame, and the sliding slot is communicated with the discharge slot. A baffle is slidably inserted in the sliding slot. The top end of the baffle is fixedly connected with a first spring, and one end of the first spring is fixedly connected to the inner top end of the anti-blocking frame;

[0008] Among them, in the initial state, the transmission device is in the lightest state, pushing up the baffle, causing the baffle to move upward in the anti-blocking frame. During the upward movement, the baffle abuts against the baffle plate, and the first spring is forced to contract until the baffle plate in the discharge slot is completely pushed out of the discharge slot, enabling the material to pass through the discharge port at the bottom end of the storage hopper and enter the transmission device. As the material in the transmission device increases, the weight of the transmission device gradually increases, causing its internal structure to gradually move downward and no longer push up the baffle, causing the baffle assembly to move downward. During the downward movement, the first spring returns to its original length, pushing the baffle plate downward, causing the baffle plate to re-insert into the discharge slot to block the material in the storage hopper. At this time, no more material enters the anti-blocking frame until the baffle re-inserts into the discharge port at the bottom end of the storage hopper.

[0009] As a further scheme of the present invention: A guiding block for guiding the material to the discharge port is fixedly connected to the inner bottom end of the storage hopper, and a connecting groove is opened at the bottom end of the baffle.

[0010] As a further solution of the present invention: the transmission device includes an outer cylinder fixedly connected to the storage hopper, the inner cylinder is slidably connected inside the outer cylinder, the top of the inner cylinder is fixedly connected to a fixing plate, the top of the fixing plate is fixedly connected to a plug, the plug is adapted to the connecting groove, and a plug is inserted through the bottom end of the inner cylinder.

[0011] As a further solution of the present invention: the bottom end of the outer cylinder is fixedly connected to a limiting ring, the top end of the limiting ring is fixedly connected to a second spring, and one end of the second spring is fixedly connected to the bottom end of the inner cylinder.

[0012] As a further solution of the present invention: a lifting groove is formed at the bottom end of the stopper, and a guide column is fixedly connected in the lifting groove.

[0013] As a further solution of the present invention: the material distribution device includes a drying table fixedly connected to the inner wall of the connecting pipe, the top of the drying table is rotatably connected to a rotating cylinder, the rotating cylinder is plugged into the guide column, the side end of the rotating cylinder is fixedly connected to a diverter rod, and the bottom end of the rotating cylinder is fixedly connected to a discharge rod.

[0014] As a further solution of the present invention: a guide plate is fixedly connected to the inner wall of the rotating cylinder, and the guide plate is adapted to the guide column.

[0015] As a further solution of the present invention: a drying trough is provided on the drying table, a discharge trough is provided on the drying table, and one end of the discharge trough passes through a connecting pipe.

[0016] As a further solution of the present invention: a guide tube is fixedly connected to the outer side of the connecting pipe, and the guide tube is arranged below the through hole of the discharge trough and the connecting pipe.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention can effectively control the discharge amount of materials through the material storage device. It uses the ingenious cooperation of the baffle plate and the baffle plate in the anti-blocking frame to realize automatic adjustment by using the weight change of the transmission device. Initially, the transmission device lifts up the baffle plate to allow materials to enter. As the weight of the materials in the transmission device increases, the baffle plate moves down, and the baffle plate drops accordingly. At the same time, the spring in the anti-blocking frame pushes the baffle plate back to block the materials. In this way, the amount of materials entering the transmission device can be accurately controlled to avoid excessive or insufficient materials. The anti-blocking frame and the guide block can effectively prevent material blockage and ensure smooth discharge of materials.

[0019] 2. In the present invention, the transmission device can perform automatic feeding and discharging. The inner cylinder can slide up and down in the outer cylinder according to the weight of the material. When the weight is light, it moves up to allow the material to enter. After the weight increases, it moves down to discharge the material. Through the linkage of the guide column and the rotating cylinder, the cloth-feeding device is driven to operate. It works in coordination with the storage device to achieve the orderly transmission and distribution of the material. At the same time, when the inner cylinder moves down to the limit position, the magnetic adsorption can fix the inner cylinder to ensure the stable discharge of the material. The second spring can reset the inner cylinder after the material is discharged to prepare for the next feeding.

[0020] 3. In the present invention, the conical structure of the drying table of the cloth-feeding device, in cooperation with multiple groups of drying grooves and ventilation holes, enables the hot air to fully contact the material, improving the drying effect. The shunt rod can evenly disperse the material on the surface of the drying table. The discharging rod, when rotating, orderly pushes the material in the drying groove to the discharging groove and finally flows into the guiding cylinder. When the discharging rod stops rotating, it can block the discharging groove, precisely controlling the flow path and rhythm of the material, ensuring that the material is evenly heated and discharged orderly on the drying table, improving the drying quality and efficiency, and ensuring the uniformity and stability of the drying of the nanocellulose material. Brief Description of the Drawings

[0021] Figure 1 is the overall structural schematic diagram of a drying device for producing nanocellulose materials according to the present invention;

[0022] Figure 2 is the structural sectional view of the connecting pipe in a drying device for producing nanocellulose materials according to the present invention;

[0023] Figure 3 is the top view of the storage hopper in a drying device for producing nanocellulose materials according to the present invention;

[0024] Figure 4 is the structural sectional view of the storage hopper in a drying device for producing nanocellulose materials according to the present invention;

[0025] Figure 5 is the structural sectional view of the transmission device in a drying device for producing nanocellulose materials according to the present invention;

[0026] Figure 6 is the structural schematic diagram of the cloth-feeding device in a drying device for producing nanocellulose materials according to the present invention;

[0027] Figure 7 is the structural sectional view of the cloth-feeding device in a drying device for producing nanocellulose materials according to the present invention;

[0028] Figure 8 is the structural schematic diagram of the drying table in a drying device for producing nanocellulose materials according to the present invention;

[0029] Figure 9 It is a schematic structural diagram of part A in the drying equipment for producing a nanocellulose material according to the present invention. Figure 7

[0030] Figure 10 It is a schematic structural diagram of part B in the drying equipment for producing a nanocellulose material according to the present invention. Figure 8

[0031] In the figure: 1, air heater; 2, connecting pipe; 21, flow guide cylinder; 3, storage device; 31, storage hopper; 32, guiding block; 33, anti-blocking frame; 331, sliding groove; 332, discharge chute; 333, baffle; 334, first spring; 34, material blocking plate; 341, connecting groove; 4, transmission device; 41, outer cylinder; 42, inner cylinder; 43, fixing plate; 44, inserting column; 45, second spring; 46, limiting ring; 47, blocking plug; 471, jacking groove; 472, guiding column; 5, cloth spreading device; 51, drying table; 511, drying groove; 512, discharge chute; 52, rotating cylinder; 521, guiding plate; 53, flow dividing rod; 54, discharge rod. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", "connected", "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations. The embodiments of the present invention will be described below according to the overall structure of the present invention. ​​

[0034] Reference Figures 1 to 4 In an embodiment of the present invention, a drying device for producing a nanocellulose material includes: a connecting pipe 2. Among them, an air heater 1 is provided at the bottom end of the connecting pipe 2, and the bottom end of the connecting pipe 2 is fixedly connected to the air outlet of the air heater 1, so that hot air flowing upward is generated in the connecting pipe 2. A storage device 3 for storing the nanocellulose material to be dried and discharging the cellulose material in batches is fixedly connected to the top end of the connecting pipe 2. A transmission device 4 is provided at the bottom end of the storage device 3 to transport the materials discharged in batches from the storage device 3 by relying on weight to the drying area. A cloth device 5 for evenly distributing the materials and facilitating drying is provided in the connecting pipe 2;

[0035] The storage device 3 includes a storage hopper 31 fixedly connected to the top end of the connecting pipe 2. The storage hopper 31 is inverted conical, its bottom surface is conical, and four groups of discharge ports are provided on the conical surface at the bottom end of the storage hopper 31. The cross-sections of the four groups of discharge ports are trapezoidal. A baffle 34 is clamped in the discharge port at the bottom end of the storage hopper 31. The baffle 34 is adapted to the discharge port. A connecting groove 341 is provided at the bottom end of the baffle 34. An anti-blocking frame 33 is fixedly connected to the bottom end inside the storage hopper 31. There are four groups of anti-blocking frames 33, and each group of anti-blocking frames 33 is arranged above the discharge port at the bottom end of a group of storage hoppers 31. Four discharge grooves 332 are provided on the side end of the anti-blocking frame 33, symmetrically arranged on the side end of the anti-blocking frame 33. Four sliding grooves 331 are provided on the inner wall of the anti-blocking frame 33, symmetrically arranged on the inner side end of the anti-blocking frame 33, and each group of sliding grooves 331 is connected to a group of discharge grooves 332. A baffle 333 is slidably inserted in the sliding groove 331. The baffle 333 is composed of four groups of plug plates and a connecting plate. Each group of plug plates is arranged in a group of sliding grooves 331 and is slidably inserted into the sliding groove 331. The top ends of the four groups of plug plates are fixedly connected to the connecting plate. The top end of the connecting plate is fixedly connected to a first spring 334. One end of the first spring 334 is fixedly connected to the top end inside the anti-blocking frame 33. A guiding block 32 for guiding the materials to the discharge port is fixedly connected to the bottom end inside the storage hopper 31. There are four groups of guiding blocks 32, evenly distributed on the diameter of every two groups of anti-blocking frames 33, and its top end is composed of two arc-shaped inclined surfaces;

[0036] Among them, in the initial state, the transmission device 4 is in the lightest state, pushing up the baffle 34, causing the baffle 34 to move upward within the anti-blocking frame 33. During the upward movement, the baffle 34 abuts against the baffle plate 333, causing the first spring 334 to contract under force until the baffle plate 333 in the discharge chute 332 is completely pushed out of the discharge chute 332, enabling the material to enter the transmission device 4 through the discharge port at the bottom of the storage hopper 31. As the amount of material in the transmission device 4 increases, the weight of the transmission device 4 gradually increases, causing its internal structure to gradually move downward and no longer push up the baffle 34, causing the baffle 34 assembly to move downward. During the downward movement, the first spring 334 returns to its original length, pushing the baffle plate 333 downward, causing the baffle plate 333 to re-insert into the discharge chute 332 to block the material in the storage hopper 31. At this time, no more material enters the anti-blocking frame 33 until the baffle 34 re-inserts into the discharge port at the bottom of the storage hopper 31;

[0037] For this explanation, in this technical solution, the air heater 1 adopts the existing technology and is an electric energy heater. It usually consists of parts such as electric heating elements and fans. It is a device that uses electric energy as a heat source, converts electric energy into heat energy through electric heating elements, and then heats the air, and uses a fan to generate an air flow to suck the air from the heater and push it to flow.

[0038] Refer to Figure 5, the transmission device 4 includes an outer cylinder 41 fixedly connected to the storage hopper 31. An inner cylinder 42 is slidably connected inside the outer cylinder 41. The top end of the inner cylinder 42 is fixedly connected to a fixing plate 43. There are four groups of fixing plates 43, which are evenly distributed at the top end of the inner cylinder 42, and the conical surface angles of the four groups of fixing plates 43 are the same as those of the bottom surface of the storage hopper 31. The top end of each group of fixing plates 43 is fixedly connected to an insertion post 44, and the insertion post 44 is adapted to the connection groove 341. A plug 47 is inserted through the bottom end of the inner cylinder 42. The plug 47 is arrow-shaped. The bottom end of the outer cylinder 41 is fixedly connected to a limit ring 46. The top end of the limit ring 46 is fixedly connected to a second spring 45. There are four groups of second springs 45, which are evenly distributed at the top end of the limit ring 46. One end of each group of second springs 45 is fixedly connected to the bottom end of the inner cylinder 42. A lifting groove 471 is opened at the bottom end of the plug 47, and a guide post 472 is fixedly connected inside the lifting groove 471. The guide post 472 is composed of a cylinder and two spiral guide strips wound around the outside of the cylinder. When the inner cylinder 42 moves to the extreme position below the outer cylinder 41, the inner cylinder 42 and the outer cylinder 41 generate magnetism, and the magnetism is less than the elastic force of the second spring 45. When there is material in the inner cylinder 42, the weight and magnetism of the material are greater than the elastic force of the second spring 45. In the initial state, the inner cylinder 42 of the transmission device 4 is at the highest position inside the outer cylinder 41 under the action of the second spring 45. At this time, the fixing plate 43 at the top end of the inner cylinder 42 is in close contact with the bottom end of the storage hopper 31, and the insertion post 44 on the fixing plate 43 is inserted into the connection groove 341 of the baffle plate 34, pushing up the baffle plate 34. When adding material to the storage hopper 31, the material is guided by the arc surface at the top end of the guide block 32, passes through the discharge slot 332, and then enters the inner cylinder 42 through the discharge port at the bottom end of the storage hopper 31. As the material in the inner cylinder 42 increases, the weight of the inner cylinder 42 gradually increases. After the weight of the inner cylinder 42 increases, it will slide down inside the outer cylinder 41, causing the second spring 45 to be compressed. And because there is friction between the insertion post 44 and the connection groove 341, the baffle plate 34 will also move down with the inner cylinder 42 until the baffle plate 34 is inserted into the discharge port at the bottom end of the storage hopper 31. During the downward movement of the inner cylinder 42, the guide post 472 is inserted into the rotating cylinder 52. As the inner cylinder 42 continues to move down, the top end of the rotating cylinder 52 abuts against the top end of the lifting groove 471, pushing the plug 47 upward, so that a gap is generated between the plug 47 and the discharge port of the inner cylinder 42, and the material can be discharged. At this time, the magnets embedded on the outer wall of the inner cylinder 42 are aligned with the magnets embedded on the inner wall of the outer cylinder 41 to generate magnetic adsorption, fixing the inner cylinder 42 at the current position.

[0039] Adopting the above scheme: The entry and stop of the material are automatically controlled by the change in the weight of the inner cylinder 42. When there is less material in the inner cylinder 42, the material entry channel is automatically opened to allow the material to enter the inner cylinder 42. When the material in the inner cylinder 42 reaches a certain amount, the material entry is automatically blocked, realizing the automatic control of the material conveying volume, avoiding the situation of too much or too little material, and ensuring the stable progress of the drying process.

[0040] Refer toFigures 6 to 10 , the cloth device 5 includes a drying table 51 fixedly connected to the inner wall of the connecting pipe 2. The drying table 51 is conical, and a drying groove 511 is formed on the drying table 51. A plurality of groups of drying grooves 511 are provided and are evenly distributed on the conical surface of the drying table 51. A plurality of groups of air holes are formed in the drying groove 511. A discharge groove 512 is formed on the drying table 51. Five groups of discharge grooves 512 are provided and are evenly distributed on the drying table 51. The discharge groove 512 is connected to the drying groove 511 in a through manner. One end of the discharge groove 512 penetrates through the connecting pipe 2. A guide cylinder 21 is fixedly connected to the outside of the connecting pipe 2. The guide cylinder 21 is arranged below the through hole of the discharge groove 512 and the connecting pipe 2. A rotating cylinder 52 is rotatably connected to the top end of the drying table 51. A guide plate 521 is fixedly connected to the inner wall of the rotating cylinder 52. Two groups of guide plates 521 are provided and are symmetrically distributed on the inner wall of the rotating cylinder 52 in a rotational manner. The rotating cylinder 52 is inserted into the guide post 472. The top end of the guide plate 521 is an inclined surface adapted to the spiral guide strip on the outside of the guide post 472. A flow dividing rod 53 is fixedly connected to the side end of the rotating cylinder 52. The flow dividing rod 53 is triangular prism-shaped. Five groups of flow dividing rods 53 are provided and are evenly distributed on the side end of the rotating cylinder 52. A discharge rod 54 is fixedly connected to the bottom end of the rotating cylinder 52. Five groups of discharge rods 54 are provided and are evenly distributed on the bottom end of the rotating cylinder 52. The discharge rod 54 is attached to the conical surface of the drying table 51. A pushing block adapted to the drying groove 511 is fixedly connected to the discharge rod 54. The width of the discharge rod 54 is greater than the width of the discharge groove 512. The distance between two groups of discharge rods 54 is the same as the distance between the discharge grooves 512. When the inner cylinder 42 of the transmission device 4 starts to move downward in the outer cylinder 41, the guide post 472 of the stopper 47 at the bottom end of the inner cylinder 42 is inserted into the rotating cylinder 52. Since the spiral guide strip on the outside of the guide post 472 abuts against the inclined surface at the top end of the guide plate 521 on the inner wall of the rotating cylinder 52, during the continuous downward movement of the inner cylinder 42, under the guidance of the spiral guide strip, the rotating cylinder 52 starts to rotate. When the rotating cylinder 52 rotates, the discharge rod 54 at the bottom end of the rotating cylinder 52 rotates on the surface of the drying table 51 as the rotating cylinder 52 rotates. A pushing block adapted to the drying groove 511 is fixed on the discharge rod 54. During the rotation of the discharge rod 54, the pushing block will push the material already in the drying groove 511 into the discharge groove 512, so that the material flows from the discharge groove 512 to the guide cylinder 21 fixedly connected to the outside of the connecting pipe 2. When the material is discharged from the discharge port of the inner cylinder 42 and enters the drying table 51, the flow dividing rod 53 divides the material, so that the material can be evenly placed on the surface of the drying table 51. Under the action of its own weight, the material slides on the conical surface of the drying table 51 and enters different drying grooves 511.

[0041] Adopting the above solution: the material is shunted by the shunt rod 53, and the conical design of the drying table 51 is used to make the material slide into the drying tank 511 under the action of gravity, ensuring the uniform distribution of the material on the drying table 51. This is conducive to the hot air passing through the air holes in the drying tank 511 to fully contact the material, making the drying more uniform, improving the drying quality. The discharging rod 54 pushes the material into the discharging groove 512 during rotation, and can block the discharging groove 512 when it stops rotating. This design can effectively control the discharge of the material, prevent the material from flowing out randomly, ensure that the material enters the guide cylinder 21 at the required rhythm and quantity, and thus ensure the orderly progress of the entire drying process.

[0042] The working principle of the present invention is as follows: In the initial stage of use, the transmission device 4 is in the lightest state. Under the action of the second spring 45, the inner cylinder 42 is at the highest position inside the outer cylinder 41, and the fixing plate 43 is in close contact with the bottom end of the storage hopper 31. At this time, the insertion post 44 is inserted into the connection groove 341, and the baffle plate 34 is pushed up, so that the baffle plate 34 pushes the baffle 333 to the highest point, and the first spring 334 is forced to contract to the limit position, exposing the discharge chute 332. Then, materials are added into the storage hopper 31, and the materials pass through the arc surface at the top of the guiding block 32 through the discharge chute 332 and enter the inner cylinder 42 through the discharge port at the bottom end of the storage hopper 31. As the materials in the inner cylinder 42 increase, the weight of the inner cylinder 42 gradually increases, causing it to slide downward inside the outer cylinder 41 and compressing the second spring 45. During the downward movement of the outer cylinder 41, the first spring 334 returns to its original length, pushing the baffle 333 downward, so that the baffle 333 is inserted back into the discharge chute 332 to block the materials in the storage hopper 31. At this time, no more materials enter the anti-blocking frame 33. And as the inner cylinder 42 moves downward, due to the frictional force between the insertion post 44 and the connection groove 341, the baffle plate 34 also moves downward until the baffle plate 34 is inserted into the discharge port at the bottom end of the storage hopper 31. During the downward movement of the inner cylinder 42, the guide post 472 is inserted into the rotating cylinder 52, and the spiral guiding strip on the outer side of the guide post 472 abuts against the guiding plate 521, and under the guidance of the spiral guiding strip, the rotating cylinder 52 is driven to rotate, so that the discharge rod 54 rotates on the surface of the drying table 51. When the discharge rod 54 rotates, the push block on the discharge rod 54 will push the materials in the drying groove 511 into the discharge chute 512 and flow from the discharge chute 512 to the diversion cylinder 21. When the discharge rod 54 stops rotating, the discharge rod 54 is located above the discharge chute 512 to block the discharge chute 512. As the inner cylinder 42 continues to move downward, the top end of the rotating cylinder 52 abuts against the top end of the jacking groove 471 and pushes the stopper 47 upward, so that a gap is generated between the stopper 47 and the discharge port of the inner cylinder 42 to discharge the materials. And at this time, the magnets embedded on the outer wall of the inner cylinder 42 are aligned with the magnets embedded on the inner wall of the outer cylinder 41 to generate magnetic adsorption, fixing the inner cylinder 42 at the current position. As the materials in the inner cylinder 42 are completely discharged, the weight of the inner cylinder 42 also decreases, causing the second spring 45 to gradually return to its original length and jack up the inner cylinder 42. The inner cylinder 42 moves upward, causing the insertion post 44 to push the baffle plate 34 up again, so that the baffle plate 34 moves upward in the anti-blocking frame 33. During the upward movement, the baffle plate 34 abuts against the baffle 333, and the first spring 334 is forced to contract until the baffle 333 in the discharge chute 332 is completely pushed out of the discharge chute 332 to replenish the materials in the inner cylinder 42. When the materials are discharged from the discharge port of the inner cylinder 42 and enter the drying table 51, the materials are first shunted by the shunt rod 53 so that they evenly fall on the surface of the drying table 51 and slide on the surface of the drying table 51 under the action of gravity and enter different drying grooves 511, so that the hot air generated by the air heater 1 contacts the materials in the drying grooves 511 through the air holes in the drying grooves 511 to dry the materials;The material discharge amount can be effectively controlled by the storage device 3. Through the ingenious cooperation of the baffle 34 and the inner baffle 333 of the anti-blocking frame 33, the automatic adjustment is realized by using the weight change of the transmission device 4. Initially, the transmission device 4 jacks up the baffle 34 to allow the material to enter. As the material in the transmission device 4 increases and the weight increases, it moves downward, and the baffle 34 also descends accordingly. At the same time, the first spring 334 in the anti-blocking frame 33 resumes to push the baffle 333 back to block the material. In this way, the amount of material entering the transmission device 4 can be accurately controlled, avoiding excessive or insufficient material. Moreover, the designs of the anti-blocking frame 33 and the guide block 32 can effectively prevent material blockage and ensure smooth material discharge. The transmission device 4 can perform automatic feeding and discharging. Its inner cylinder 42 can slide up and down in the outer cylinder 41 according to the material weight. When the weight is light, it moves upward to allow the material to enter. After the weight increases, it moves downward to discharge the material. Through the linkage of the guide post 472 and the rotating cylinder 52, the cloth feeding device 5 is driven to operate. It works in coordination with the storage device 3 to achieve the orderly transmission and distribution of the material. At the same time, when the inner cylinder 42 moves down to the limit position, the magnetic adsorption can fix the inner cylinder 42 to ensure stable material discharge. The second spring 45 can reset the inner cylinder 42 after the material is discharged to prepare for the next feeding. Through the conical structure of the drying table 51 of the cloth feeding device 5, in cooperation with multiple groups of drying grooves 511 and ventilation holes, hot air can fully contact the material to improve the drying effect. The shunt rod 53 can evenly disperse the material on the surface of the drying table 51. The discharging rod 54 orderly pushes the material in the drying groove 511 to the discharging groove 512 and finally flows into the guide cylinder 21 when rotating. And when the discharging rod 54 stops rotating, it can block the discharging groove 512 to accurately control the material flow path and rhythm, ensure uniform heating and orderly discharging of the material on the drying table 51, improve the drying quality and efficiency, and ensure the uniformity and stability of the drying of the nanocellulose material.;

[0043] The above-mentioned is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A drying device for producing nanocellulose materials, comprising: A connecting pipe (2), wherein the bottom end of the connecting pipe (2) is connected to an air heater (1) so that hot air flowing upward is generated in the connecting pipe (2), and is characterized in that a storage device (3) for storing nano-cellulose material to be dried and for discharging the cellulose material in batches is fixedly connected to the top end of the connecting pipe (2), and a transmission device (4) for transporting the material discharged from the storage device (3) in batches to a drying area by weight is provided at the bottom end of the storage device (3), and a distribution device (5) for evenly distributing the material for easy drying is provided in the connecting pipe (2); The material storage device (3) comprises a material storage hopper (31) fixedly connected to the top of the connecting pipe (2); a material baffle plate (34) is clamped in the discharge port at the bottom of the material storage hopper (31); an anti-blocking frame (33) is fixedly connected to the bottom of the material storage hopper (31); the anti-blocking frame (33) is arranged above the discharge port at the bottom of the material storage hopper (31); a discharge trough (332) is provided at the side end of the anti-blocking frame (33); a sliding groove (331) is provided on the inner wall of the anti-blocking frame (33); the sliding groove (331) is connected to the discharge trough (332); a baffle plate (333) is slidably inserted in the sliding groove (331); a spring (334) is fixedly connected to the top of the baffle plate (333); one end of the spring (334) is fixedly connected to the top of the anti-blocking frame (33); The transmission device (4) comprises an outer cylinder (41) fixedly connected to the storage hopper (31), an inner cylinder (42) being slidably connected inside the outer cylinder (41), a fixing plate (43) being fixedly connected to the top of the inner cylinder (42), a plug (44) being fixedly connected to the top of the fixing plate (43), the plug (44) being matched with the connection groove (341), and a stopper (47) being inserted through the bottom of the inner cylinder (42); The bottom end of the outer cylinder (41) is fixedly connected to a limiting ring (46), the top end of the limiting ring (46) is fixedly connected to a second spring (45), and one end of the second spring (45) is fixedly connected to the bottom end of the inner cylinder (42); In the initial state, the transmission device (4) is in the lightest state, and the baffle plate (34) is lifted up, so that the baffle plate (34) moves upward in the anti-blocking frame (33). During the upward movement, the baffle plate (34) abuts against the baffle plate (333), and the spring (334) is forced to contract until the baffle plate (333) in the discharge trough (332) is completely pushed out of the discharge trough (332), so that the material passes through the discharge port at the bottom of the storage hopper (31) and enters the transmission device (4). As the material in the transmission device (4) As the weight of the transmission device (4) increases, the weight of the transmission device (4) gradually increases, causing its internal structure to gradually move downward, and the baffle plate (34) is no longer lifted up, causing the baffle plate (34) assembly to move downward. During the downward movement, the spring (334) restores its original length and pushes the baffle plate (333) downward, causing the baffle plate (333) to be reinserted into the discharge chute (332) to block the material in the storage hopper (31). At this time, no material enters the anti-blocking frame (33) until the baffle plate (34) is reinserted into the discharge port at the bottom of the storage hopper (31).

2. A drying device for producing nanocellulose materials according to claim 1, characterized in that: A guide block (32) for guiding materials to a discharge port is fixedly connected to the bottom end of the storage hopper (31), and a connecting groove (341) is formed at the bottom end of the baffle plate (34).

3. A drying device for producing nanocellulose materials according to claim 1, characterized in that: A lifting groove (471) is formed at the bottom end of the blocking plug (47), and a guide column (472) is fixedly connected in the lifting groove (471).

4. A drying device for producing nanocellulose materials according to claim 3, characterized in that: The material distribution device (5) comprises a drying table (51) fixedly connected to the inner wall of the connecting pipe (2); a rotating cylinder (52) is rotatably connected to the top of the drying table (51); the rotating cylinder (52) is plugged into the guide column (472); a diverter rod (53) is fixedly connected to the side end of the rotating cylinder (52); and a material discharge rod (54) is fixedly connected to the bottom end of the rotating cylinder (52).

5. A drying device for producing nanocellulose materials according to claim 4, characterized in that: A guide plate (521) is fixedly connected to the inner wall of the rotating cylinder (52), and the guide plate (521) is adapted to the guide column (472).

6. A drying device for producing nanocellulose materials according to claim 5, characterized in that: The drying table (51) is provided with a drying groove (511), and the drying table (51) is provided with a material discharge groove (512), and one end of the material discharge groove (512) passes through the connecting pipe (2).

7. A drying device for producing nanocellulose materials according to claim 6, characterized in that: A flow guide tube (21) is fixedly connected to the outside of the connecting tube (2), and the flow guide tube (21) is arranged below the through hole between the discharge trough (512) and the connecting tube (2).

Images