Biodegradable plastic pellet spin dryer

Abstract

This utility model provides a dehydrator for biodegradable plastic granules, relating to the field of plastic granule production technology. The utility model includes a dehydrator with a rotating drum rotatably mounted on the bottom of its inner wall. A first sprocket is fixedly mounted on the bottom of the drum. By setting an auxiliary device, when a motor drives a second sprocket to rotate, it drives fan blades to rotate within the inner wall of an air guide shroud, drawing air in from the air inlet. Simultaneously, an electric heating wire is energized to heat the air, causing heat exchange and raising its temperature as the air passes through the wire. The air then enters the guide pipe and finally exits into the rotating drum through the spray bar. This process heats and dries the biodegradable plastic granules during dehydration, effectively preventing secondary pollution and re-moistening during the step-by-step transfer of the granules, thus achieving rapid drying and improving dehydration efficiency.

Description

Technical Field

[0001] This utility model relates to the field of plastic pellet production technology, and in particular to a spin dryer for biodegradable plastic pellets. Background Technology

[0002] A plastic pellet dryer is a device specifically designed for processing biodegradable plastic pellets. Its main function is to remove moisture or other liquids from the surface of the plastic pellets through high-speed rotation, thereby accelerating the drying process.

[0003] In the production process of biodegradable plastic pellets, dehydration and drying are mostly carried out in separate steps. After being spun dry by the dehydrator, the plastic pellets need to be transferred to the drying device for further processing. This not only poses a risk of secondary contamination of the pellets, but also results in low drying efficiency due to the time-consuming process connections, making it difficult to meet the requirements of continuous and efficient processing for large-scale production. At the same time, biodegradable plastic pellets themselves are prone to absorbing moisture, and the separate processing can easily lead to the pellets regaining moisture due to the excessively long intermediate residence time. Utility Model Content

[0004] The technical problem this invention aims to solve is that in the production process of biodegradable plastic granules, dehydration and drying are often carried out in separate steps. After being spun dry by a dehydrator, the plastic granules need to be transferred to a drying device for further processing. This not only poses a risk of secondary contamination of the granules, but also results in low drying efficiency due to the time-consuming process connections, making it difficult to meet the requirements of continuous and efficient processing for large-scale production. At the same time, biodegradable plastic granules themselves have the characteristic of being easily hygroscopic, and the separate processing can easily lead to the phenomenon of granules regaining moisture due to excessive intermediate residence time.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a biodegradable plastic granule spin dryer, including a dehydrator. A drum is rotatably installed on the bottom of the inner wall of the dehydrator. A first sprocket is fixedly installed on the bottom of the drum. One end of the first sprocket passes through one side of the dehydrator and is located in the bottom cavity. A motor is fixedly installed on one side of the dehydrator. A second sprocket is installed through one side of the inner wall of the bottom cavity of the dehydrator. One end of the second sprocket is fixedly installed on the output end of the motor by means of a coupling. Chains are fitted on the outer surfaces of both the first and second sprockets. An auxiliary device is provided on the inner wall of the drum. The auxiliary device can drive the fan blades to rotate through the motor to draw air into the air guide shroud. Then, the air exchanges heat with the heating wire mesh and is heated before being transported to the inside of the guide pipe and the spray bar and blown into the inner wall of the drum. This allows the dehydrator to transport hot air into the inside of the drum when dehydrating the biodegradable plastic granules, achieving a rapid dehydration and drying effect.

[0006] The aforementioned components achieve the following effects: During the production of biodegradable plastic granules, when using a dewatering machine for dehydration and spin-drying, the biodegradable plastic granules are placed inside the drum. The motor is then started, driving the second sprocket to rotate. This, in turn, causes the first sprocket and the drum to rotate at high speed. The biodegradable plastic granules inside the drum move in a circular motion with the drum, subjected to centrifugal force, which is much greater than gravity. This causes the water in the biodegradable plastic granules to be ejected. The liquid, due to its lower density and higher fluidity, overcomes the material's adsorption force and is thrown through the drum's filter holes and screen into the space between the dewatering machine and the drum shell, before being discharged through the drain outlet. Meanwhile, the Oxford cloth is tightly adhered to the inner wall of the drum due to centrifugal force, gradually losing moisture, thus achieving dehydration. During the dehydration process, an auxiliary device can be activated to deliver hot air into the drum, heating and drying the biodegradable plastic granules during the dehydration process. This effectively avoids secondary pollution and re-moistening of the biodegradable plastic granules during the step-by-step transfer process, thus achieving rapid drying and improving spin-drying efficiency.

[0007] Preferably, the auxiliary device includes an air guide shroud, one side of which is fixedly installed on one side of the dewatering machine; a guide pipe, one end of which is fixedly installed on the outlet side of the air guide shroud; a spray bar, one end of which is installed through the drum and the first sprocket on one side and extends out of the bottom of the dewatering machine and is fixedly connected to the end of the guide pipe away from the air guide shroud; a fan blade, one end of which is installed through the side of the dewatering machine and fixedly connected to the side of the second sprocket, and the other end is disposed in the inner wall of the air guide shroud; and an electric heating wire mesh, the outer surface of which is fixedly installed in the inner wall of the air guide shroud.

[0008] The effect achieved by the above-mentioned components is as follows: by setting up auxiliary devices, when the motor drives the second sprocket to rotate, it will drive the fan blades to rotate in the inner wall of the air guide shroud, drawing air from the air inlet of the air guide shroud into the inner wall of the air guide shroud. At the same time, the electric heating wire mesh is energized to heat it, so that the air undergoes heat exchange and increases in temperature as it passes through the electric heating wire mesh. Then it enters the guide pipe and finally enters the inside of the spray bar and is discharged into the drum. This process heats and dries the biodegradable plastic particles during the dehydration process, effectively avoiding secondary pollution and re-moistening of the biodegradable plastic particles during the step-by-step transfer process. Therefore, it achieves a rapid drying effect and improves the spin-drying efficiency.

[0009] Preferably, the outer surface dimension of the first sprocket is larger than that of the second sprocket.

[0010] The effect achieved by the above components is that by designing the outer surface size of the first sprocket to be larger than that of the second sprocket, when the motor drives the second sprocket to rotate at high speed, it can drive the fan blades to rotate at high speed, thereby generating a larger air volume and improving the drying effect.

[0011] Preferably, the auxiliary device further includes a plurality of filter screens, wherein the filter screens are fixedly installed in the inner wall of a plurality of outlets of the spray bar.

[0012] The effect achieved by the above components is that by setting up a filter screen, the inner wall of several outlets of the spray bar can be protected, so that biodegradable plastic particles are not easy to enter the interior of the spray bar during the drying process, thus avoiding clogging and affecting its use.

[0013] Preferably, a plurality of elastic limiting frames are fixedly installed on one side of the dewatering machine, wherein the outer surface of the guide tube is inserted into the inner wall of the elastic limiting frame.

[0014] The effect achieved by the above components is as follows: by setting the elastic limiting frame, the outer surface of the guide tube can be limited and fixed, so that it is not easy to shake during use. In this way, when the drum rotates to dehydrate, the spray bar can be driven to avoid shaking in the drum, thus improving the stability of use.

[0015] Preferably, a bearing is fixedly installed on the outer surface of one end of the fan blade, and the outer ring of the bearing is fixedly installed on one side of the dehydrator.

[0016] The effect achieved by the above components is that by setting bearings, the rotational wear between the fan blades and one side of the dewatering machine can be reduced, thereby increasing service life.

[0017] Preferably, a cleaning mechanism is provided on the outer surface of the air inlet of the air guide shroud. The cleaning mechanism includes a protrusion, one side of which is fixedly installed on the outer surface of the air guide shroud; an electric telescopic rod, one end of which is fixedly installed on one side of the protrusion; and a circular brush, which is sleeved on the outer surface of the air guide shroud and one side is fixedly installed on the output end of the electric telescopic rod.

[0018] The effect achieved by the above components is as follows: by setting up a cleaning mechanism, when using the dehydrator and auxiliary devices, the electric telescopic rod on the protrusion can be activated to drive the circular brush to move up and down on the outer surface of the air guide shroud, cleaning away the dust and impurities attached to the air inlet, preventing them from entering the interior of the air guide shroud, and also preventing the air inlet from becoming blocked due to excessive auxiliary equipment, thereby improving the air intake volume and effect of the air guide shroud's air inlet.

[0019] Preferably, a reinforcing rod is symmetrically fixedly installed on the outer surface of the output end of the electric telescopic rod, and one side of the reinforcing rod is fixedly installed on one side of the circular brush.

[0020] The effect achieved by the above components is that by setting up reinforcing rods, the connection area between the electric telescopic rod and the circular brush can be increased, making the connection more secure and stable, and less prone to damage.

[0021] The beneficial effects of this utility model are:

[0022] By setting up an auxiliary device, when the motor drives the second sprocket to rotate, it will drive the fan blades to rotate inside the air guide shroud. Air is drawn into the air guide shroud from the air inlet and into the inner wall of the air guide shroud. At the same time, the electric heating wire is energized to heat the air, so that heat exchange occurs as the air passes through the electric heating wire, raising its temperature. Then it enters the guide pipe and finally enters the spray bar and is discharged into the drum. This process heats and dries the biodegradable plastic particles during the dehydration process, effectively avoiding secondary pollution and re-moistening of the biodegradable plastic particles during the step-by-step transfer process. Therefore, it achieves a rapid drying effect and improves the spin-drying efficiency. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Figure 1 This is a schematic diagram of the structure of this utility model.

[0025] Figure 2 This is a cross-sectional three-dimensional structural diagram of the dehydrator of this utility model;

[0026] Figure 3 This is a three-dimensional structural diagram of the drum of this utility model;

[0027] Figure 4 This is a three-dimensional structural diagram of the motor part of this utility model;

[0028] Figure 5 for Figure 4 A three-dimensional schematic diagram of a partial structure at the central air guide shroud;

[0029] Figure 6 for Figure 4 A three-dimensional schematic diagram of the partial structure at the first sprocket.

[0030] Legend: 1. Dehydrator; 2. Auxiliary device; 3. Drum; 4. First sprocket; 5. Motor; 6. Second sprocket; 7. Chain; 21. Air guide shroud; 22. Guide pipe; 23. Spray bar; 24. Fan blade; 25. Filter screen; 26. Flexible limit frame; 27. Bearing; 28. Cleaning mechanism; 281. Protrusion; 282. Electric telescopic rod; 283. Circular brush; 284. Reinforcing rod; 29. ​​Heating wire mesh. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] Figure 1-6 The biodegradable plastic granule spin dryer shown includes a dehydrator 1, a drum 3 rotatably mounted on the bottom of the inner wall of the dehydrator 1, a first sprocket 4 fixedly mounted on the bottom of the drum 3, one end of the first sprocket 4 penetrating one side of the dehydrator 1 and disposed in the bottom cavity, a motor 5 fixedly mounted on one side of the dehydrator 1, a second sprocket 6 penetrating one side of the inner wall of the bottom cavity of the dehydrator 1, one end of the second sprocket 6 fixedly mounted on the output end of the motor 5 by means of a coupling, chains 7 being fitted onto the outer surfaces of both the first sprocket 4 and the second sprocket 6, and an auxiliary device 2 provided on the inner wall of the drum 3, the auxiliary device 2 being able to drive the fan blades 24 to rotate via the motor 5 to draw air into the air guide shroud 21, then allowing it to exchange heat with the electric heating wire mesh 29 to raise its temperature, and then conveying it to the interior of the guide pipe 22 and the spray bar 23 to blow it into the inner wall of the drum 3, so that when the dehydrator 1 dehydrates the biodegradable plastic granules, it conveys hot air to the interior of the drum 3 to achieve the effect of rapid dehydration and drying. During the production of biodegradable plastic granules, when using a dewatering machine 1 for dehydration and drying, the biodegradable plastic granules are placed inside a rotating drum 3. Then, a motor 5 is started, driving a second sprocket 6 to rotate. This, in turn, causes the first sprocket 4 and the rotating drum 3 to rotate at high speed, driven by a chain 7. At this time, the biodegradable plastic granules inside the rotating drum 3 move in a circular motion along with the drum, experiencing centrifugal force. This centrifugal force is much greater than gravity, causing the water in the biodegradable plastic granules to be ejected. Because the liquid has a lower density and higher fluidity, it overcomes the adsorption of the material. The oxygen cloth is thrown through the filter holes and screen of the drum 3 into the space between the inside of the dewatering machine 1 and the outer shell of the drum 3, and then discharged through the drain outlet. The Oxford cloth is tightly adhered to the inner wall of the drum 3 due to centrifugal force, and gradually loses moisture, thus achieving dehydration. During the dehydration process, the auxiliary device 2 can be activated to deliver hot air into the inside of the drum 3, so as to heat and dry the biodegradable plastic particles during the dehydration process. This effectively avoids secondary pollution and re-moistening of the biodegradable plastic particles during the step-by-step transfer process, thus achieving a rapid drying effect and improving the dehydration efficiency.

[0034] Figure 1-6The auxiliary device 2 shown includes an air guide shroud 21, one side of which is fixedly installed on one side of the dehydrator 1; a guide pipe 22, one end of which is fixedly installed on one side of the outlet of the air guide shroud 21; a spray bar 23, one end of which is installed through one side of the drum 3 and the first sprocket 4 and extends out of the bottom of the dehydrator 1 and is fixedly connected to the end of the guide pipe 22 away from the air guide shroud 21; a fan blade 24, one end of which is installed through one side of the dehydrator 1 and is fixedly connected to one side of the second sprocket 6, and the other end is disposed in the inner wall of the air guide shroud 21; and an electric heating wire mesh 29, the outer surface of which is fixedly installed in the inner wall of the air guide shroud 21. By setting up auxiliary device 2, when motor 5 drives the second sprocket 6 to rotate, it will drive the fan blade 24 to rotate in the inner wall of the air guide shroud 21, drawing air from the air inlet of the air guide shroud 21 into the inner wall of the air guide shroud 21. At the same time, the electric heating wire mesh 29 is energized and heated, so that the air undergoes heat exchange and increases in temperature when passing through the electric heating wire mesh 29. Then it enters the guide pipe 22 and finally enters the spray bar 23 and is discharged into the drum 3. This process heats and dries the biodegradable plastic particles during the dehydration process, effectively avoiding secondary pollution and re-moistening of the biodegradable plastic particles during the step-by-step transfer process. Therefore, it achieves a rapid drying effect and improves the spin-drying efficiency.

[0035] Figure 1-6 The outer surface dimension of the first sprocket 4 shown is larger than that of the second sprocket 6. By designing the outer surface dimension of the first sprocket 4 to be larger than that of the second sprocket 6, when the motor 5 drives the second sprocket 6 to rotate at high speed, it can drive the fan blade 24 to rotate at high speed, thereby generating a larger air volume and improving the drying effect. The auxiliary device 2 also includes several filters 25, which are fixedly installed in the inner wall of several outlets of the spray bar 23. By setting the filters 25, the inner wall of several outlets of the spray bar 23 can be protected, preventing biodegradable plastic particles from entering the interior of the spray bar 23 during the drying process, thus avoiding blockage and affecting its use.

[0036] Figure 1-6 Several elastic limiting frames 26 are fixedly installed on one side of the dewatering machine 1 shown, with the outer surface of the guide tube 22 inserted into the inner wall of the elastic limiting frame 26. By setting the elastic limiting frame 26, the outer surface of the guide tube 22 can be limited and fixed, making it less prone to shaking during use. This ensures that when the drum 3 rotates for dewatering, the spray bar 23 is less likely to shake within the drum 3, improving operational stability. A bearing 27 is fixedly installed on the outer surface of one end of the fan blade 24, and the outer ring of the bearing 27 is fixedly installed on one side of the dewatering machine 1. By setting the bearing 27, the rotational wear between the fan blade 24 and one side of the dewatering machine 1 can be reduced, increasing its service life.

[0037] Figure 1-6 The air inlet of the air guide shroud 21 shown is provided with a cleaning mechanism 28. The cleaning mechanism 28 includes a protrusion 281, one side of which is fixedly installed on the outer surface of the air guide shroud 21; an electric telescopic rod 282, one end of which is fixedly installed on one side of the protrusion 281; and a circular brush 283, which is sleeved on the outer surface of the air guide shroud 21 and one side is fixedly installed on the output end of the electric telescopic rod 282. By setting up the cleaning mechanism 28, when using the dehydrator 1 and the auxiliary device 2, the electric telescopic rod 282 on the protrusion 281 can be activated to drive the circular brush 283 to move up and down on the outer surface of the air guide shroud 21, cleaning away dust and impurities adhering to the air inlet, preventing them from entering the interior of the air guide shroud 21, and also preventing the air inlet from becoming blocked due to excessive auxiliary equipment, thereby improving the air intake volume and effect of the air guide shroud 21. A reinforcing rod 284 is symmetrically fixedly installed on the outer surface of the output end of the electric telescopic rod 282. One side of the reinforcing rod 284 is fixedly installed on one side of the circular brush 283. By setting the reinforcing rod 284, the connection area between the electric telescopic rod 282 and the circular brush 283 can be increased, making the connection more secure and stable, and less prone to damage.

[0038] Working Principle: During the production of biodegradable plastic granules, when dehydrating and drying them using a dewatering machine 1, the biodegradable plastic granules are placed inside a rotating drum 3. Then, a motor 5 is started, driving a second sprocket 6 to rotate. This, in turn, causes the first sprocket 4 and the rotating drum 3 to rotate at high speed, driven by a chain 7. At this time, the biodegradable plastic granules inside the rotating drum 3 move in a circular motion along with the drum 3. Under the influence of centrifugal force, which is much greater than gravity, the water in the biodegradable plastic granules is thrown out. The liquid, due to its lower density and higher fluidity, overcomes the material's adsorption force and is thrown through the filter holes and screen of the rotating drum 3 into the space between the dewatering machine 1 and the outer shell of the rotating drum 3, and then discharged through the drain outlet. Meanwhile, the Oxford cloth... Because of centrifugal force, the particles are pressed tightly against the inner wall of the drum 3, gradually losing moisture and achieving dehydration. When the motor 5 drives the second sprocket 6 to rotate, it drives the fan blades 24 to rotate in the inner wall of the air guide shroud 21, drawing air from the air inlet of the air guide shroud 21 into the inner wall of the air guide shroud 21. At the same time, the electric heating wire mesh 29 is energized and heated, so that the air undergoes heat exchange and increases in temperature as it passes through the electric heating wire mesh 29. Then, the air enters the guide pipe 22 and finally enters the spray bar 23 and is discharged into the drum 3. This process heats and dries the biodegradable plastic particles during the dehydration process, effectively avoiding secondary pollution and re-moistening of the biodegradable plastic particles during the step-by-step transfer process. Therefore, it achieves a rapid drying effect and improves the spin-drying efficiency.

[0039] When using the dehydrator 1 and auxiliary device 2, the electric telescopic rod 282 on the protrusion 281 can be activated to drive the circular brush 283 to move up and down on the outer surface of the air guide shroud 21, cleaning away the dust and impurities attached to the air inlet, preventing them from entering the interior of the air guide shroud 21, and also preventing the air inlet from becoming blocked due to excessive auxiliary equipment, thereby improving the air intake volume and effect of the air guide shroud 21.

[0040] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A biodegradable plastics particles spin dryer comprising a dewaterer (1) characterised by: A rotating drum (3) is rotatably installed on the bottom of the inner wall of the dehydrator (1). A first sprocket (4) is fixedly installed on the bottom of the rotating drum (3). One end of the first sprocket (4) passes through one side of the dehydrator (1) and is set in the bottom cavity. A motor (5) is fixedly installed on one side of the dehydrator (1). A second sprocket (6) is installed through one side of the inner wall of the bottom cavity of the dehydrator (1). One end of the second sprocket (6) is fixedly installed on the output end of the motor (5) by means of a coupling. A chain (7) is fitted on the outer surface of both the first sprocket (4) and the second sprocket (6). An auxiliary device (2) is provided on the inner wall of the rotating drum (3). The auxiliary device (2) can drive the fan blade (24) to rotate through the motor (5) to draw air into the air guide shroud (21), and then make it exchange heat with the electric heating wire mesh (29) to raise the temperature and then deliver it to the inside of the guide pipe (22) and the spray bar (23) to blow into the inner wall of the rotating drum (3).

2. The biodegradable plastics pellet drier according to claim 1, characterized in that: The auxiliary device (2) includes an air guide hood (21), wherein one side of the air guide hood (21) is fixedly installed on one side of the dewatering machine (1); A guide pipe (22), one end of which is fixedly installed on one side of the outlet of the air guide shroud (21); The spray bar (23) has one end installed through the drum (3) and the first sprocket (4) on one side and extends out of the bottom of the dewatering machine (1) and is fixedly connected to the end of the guide pipe (22) away from the air guide shroud (21); Fan blade (24), one end of which passes through one side of the dewatering machine (1) and is fixedly connected to one side of the second sprocket (6), and the other end is set in the inner wall of the air guide shroud (21); The outer surface of the electric heating wire mesh (29) is fixedly installed in the inner wall of the air guide shroud (21).

3. The biodegradable plastic pellet spin dryer according to claim 1, characterized in that: The outer surface dimension of the first sprocket (4) is larger than the outer surface dimension of the second sprocket (6).

4. The biodegradable plastic pellet extractor according to claim 2, wherein: The auxiliary device (2) also includes several filters (25), wherein the filters (25) are fixedly installed in the inner wall of several outlets of the spray bar (23).

5. The biodegradable plastic pellet centrifuge according to claim 2, characterized in that: Several elastic limiting frames (26) are fixedly installed on one side of the dehydrator (1), wherein the outer surface of the guide pipe (22) is inserted into the inner wall of the elastic limiting frame (26).

6. The biodegradable plastic pellet extractor according to claim 2, wherein: A bearing (27) is fixedly installed on the outer surface of one end of the fan blade (24), and the outer ring of the bearing (27) is fixedly installed on one side of the dehydrator (1).

7. The biodegradable plastics pellet drier of claim 2, wherein: A cleaning mechanism (28) is provided on the outer surface of the air inlet of the air guide shroud (21). The cleaning mechanism (28) includes a protrusion (281), one side of which is fixedly installed on the outer surface of the air guide shroud (21).

8. The biodegradable plastics pellet drier of claim 7, wherein: An electric telescopic rod (282), wherein one end of the electric telescopic rod (282) is fixedly installed on one side of the protrusion (281); A circular brush (283) is sleeved on the outer surface of the air guide cover (21) and one side is fixedly installed on the output end of the electric telescopic rod (282).

9. The biodegradable plastics pellet drier of claim 8, wherein: The output end outer surface of the electric telescopic rod (282) is symmetrically fixedly installed with a reinforcing rod (284), one side of the reinforcing rod (284) is fixedly installed on one side of the circular ring brush (283).

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