A raw material drying device for recycling waste plastic products

Abstract

The present invention relates to the technical field of plastic recycling and processing, and proposes a raw material drying device for recycling waste plastic products, including a cylinder, the cylinder having a first feed port and a first discharge port; a first mounting platform is arranged in the cylinder, the first mounting platform has a first cavity, and the first cavity is connected to a hot air source; a vibration column is relatively vertically arranged on the first mounting platform, the vibration column has a receiving portion at one end close to the first mounting platform, the receiving portion is connected to the first feed port, the vibration column has a second cavity inside, the second cavity is connected to the first cavity, and the vibration column also has a plurality of ventilation holes, the inside of the cylinder is connected to the second cavity through the ventilation holes; an ascending spiral plate is arranged on the outside of the vibration column, one end of the ascending spiral plate is in contact with the receiving portion, the other end of the ascending spiral plate has a discharge portion, and the discharge portion is connected to the first discharge port. Through the above technical scheme, the problem of uneven drying of crushed plastic particles in the prior art is solved.

Description

Technical Field

[0001] The invention relates to the technical field of plastic recycling and processing, and in particular to a raw material drying device for recycling waste plastic products. Background Art

[0002] As global resource shortages and environmental pollution become increasingly severe, the recycling of waste plastic products has become a hot topic. In the process of reusing waste plastic products, a series of key process steps are usually involved, among which cleaning, crushing and drying are indispensable and important links.

[0003] First of all, cleaning is the initial step in the reuse of waste plastic products. Waste plastic products are often contaminated with various dirt and impurities during use, such as dust, oil, label residues, etc. These pollutants will not only affect the subsequent processing, but also may reduce the quality of recycled plastic products. Through cleaning, various impurities on the surface of waste plastic products can be effectively removed, providing clean raw materials for subsequent processing. The cleaning process usually adopts water washing, solvent cleaning or ultrasonic cleaning, and the appropriate cleaning method is selected according to the different types of plastics and the degree of contamination.

[0004] Next, crushing is one of the key links in the reuse of waste plastic products. After cleaning, the waste plastic products need to be crushed to break them into smaller particles or flakes. The crushed plastic particles have a larger surface area, which is conducive to improving the efficiency of subsequent drying and processing. At the same time, crushing can also make different types of plastics mix more evenly, which is convenient for subsequent blending and modification. The crushing process usually uses mechanical crushing equipment, such as crushers, grinders, etc., and the appropriate crushing equipment and process parameters are selected according to different plastic materials and particle size requirements.

[0005] Finally, drying is an important guarantee for the reuse of waste plastic products. During the cleaning and crushing process, waste plastic products will inevitably absorb a certain amount of moisture. If this moisture is not removed in time, it will cause a series of problems in the subsequent processing process, such as reducing the melting temperature of the plastic, affecting the fluidity of the plastic, causing bubbles and defects in the product, etc. Therefore, drying is a key step to ensure the quality of recycled plastic products. Summary of the invention

[0006] The invention provides a raw material drying device for recycling waste plastic products, which solves the problem of uneven drying of crushed plastic particles in the related art.

[0007] The technical solution of the present invention is as follows:

[0008] A raw material drying device for recycling waste plastic products, comprising:

[0009] A cylinder having a first feed inlet and a first discharge outlet;

[0010] A first mounting platform, the first mounting platform is disposed in the cylinder, the first mounting platform has a first cavity, and the first cavity is connected to a hot air source;

[0011] A vibration column, wherein the vibration column is relatively vertically arranged on the first mounting platform, the vibration column has a material receiving portion at one end close to the first mounting platform, the material receiving portion is connected to the first feed port, the vibration column has a second cavity inside, the second cavity is connected to the first cavity, and the vibration column also has a plurality of ventilation holes, and the interior of the cylinder is connected to the second cavity through the ventilation holes;

[0012] An ascending spiral plate is arranged on the outside of the vibration column, one end of the ascending spiral plate is in contact with the receiving part, and the other end of the ascending spiral plate has a discharging part, and the discharging part is connected to the first discharging port.

[0013] Optionally, it also includes:

[0014] Vibration motors, wherein the vibration motors are provided in pairs, and the two vibration motors are arranged opposite to each other at one end of the vibration column away from the first mounting platform;

[0015] The first elastic member includes a plurality of first elastic members, and two ends of the first elastic member are respectively in contact with the first mounting platform and the vibration column, so as to reduce the transmission of vibration between the vibration column and the first mounting platform.

[0016] Optionally, it also includes:

[0017] A descending spiral plate is arranged inside the cylinder, and the discharge portion is connected to the first discharge port through the descending spiral plate.

[0018] Optionally, the ventilation holes are evenly distributed in a spiral on the vibration column, with the same pitch as the ascending spiral plate, and the ventilation holes face the ascending spiral plate.

[0019] Optionally, the first cavity side wall has a first mounting portion, the vibration column further has a spiral slide groove, the spiral slide groove is consistent with the pitch of the ascending spiral plate, and further includes:

[0020] A slider, the slider being slidably disposed in the spiral slide groove;

[0021] A rotating rod, the rotating rod penetrates and is rotatably disposed on the sliding block;

[0022] A scraper, the scraper is eccentrically arranged at one end of the rotating rod and is located outside the second cavity, and the scraper abuts or does not abut against the ascending spiral plate;

[0023] A weight-bearing member, the weight-bearing member is eccentrically arranged at the other end of the rotating rod, in the opposite direction to the eccentric direction of the scraper;

[0024] A telescopic member, one end of which is arranged in the first mounting portion, and the extended end of the telescopic member is located in the second cavity. After the telescopic member is extended, the extended end of the telescopic member abuts against the weight-bearing member, so that the scraper abuts against the ascending spiral plate, and pushes the weight-bearing member close to the vibration motor, so that the slider slides along the spiral groove.

[0025] Optionally, the telescopic member comprises:

[0026] a rotating shaft, the rotating shaft vertically penetrates and is rotatably disposed on the first mounting portion,

[0027] a first sliding cylinder, the first sliding cylinder being vertically slidably disposed in the first mounting portion, the first sliding cylinder being threadedly connected to the rotating shaft;

[0028] A first rotating cylinder, wherein the first rotating cylinder has a plurality of first rotating cylinders, the radii of the plurality of first rotating cylinders are increased in sequence and are slidably connected to each other, the first rotating cylinder located at the inner side is slidably arranged on the rotating shaft, and the plurality of first rotating cylinders all rotate synchronously with the rotating shaft;

[0029] The second sliding cylinder has a plurality of second sliding cylinders, the radius of the plurality of second sliding cylinders increases successively and the plurality of second sliding cylinders are slidably connected, and one end of the plurality of second sliding cylinders close to the first mounting portion is respectively threadedly connected to the plurality of first rotating cylinders.

[0030] Optionally, the weight-bearing member is rotatably arranged at one end of the rotating rod located in the second cavity.

[0031] Optionally, it also includes:

[0032] A material return plate, which is arranged at the end of the descending spiral plate and connects the descending spiral plate and the material receiving part;

[0033] A rotating plate, one end of which is rotatably arranged at the end of the descending spiral plate. After the rotating plate rotates, the descending spiral plate is connected to the first discharge port or the material receiving part.

[0034] Optionally, the rotating plate has a first bevel tooth at one end away from the descending spiral plate, and further comprises:

[0035] A rotating handle is provided through and rotatably disposed on the cylinder body, and a second bevel gear is provided at one end of the cylinder body, and meshes with the first bevel gear. When the rotating handle is rotated, the rotating plate is driven to rotate.

[0036] Optionally, it also includes:

[0037] A maintenance ladder, one end of which is arranged outside the cylinder, and the other end of which is in contact with the ground.

[0038] The working principle and beneficial effects of the present invention are:

[0039] In the present invention, in order to solve the problem of uneven drying of crushed plastic particles in the related art, a raw material drying device for recycling waste plastic products is designed. The cylinder is made of a sturdy and durable metal material, is cylindrical in shape, and has good sealing and stability. The first feed port is located on one side of the top of the cylinder, in a funnel shape, which is convenient for the input of the waste plastic product raw materials. The first discharge port is arranged on one side of the bottom of the cylinder, which is used to discharge the dried materials. The first mounting platform is firmly fixed at the bottom center position of the cylinder by welding or bolt connection. The first cavity inside the first mounting platform is connected to the external hot air source. The hot air source can be an industrial hot air blower that can generate stable high-temperature hot air. After the hot air enters the first cavity through the pipeline, it flows to the second cavity inside the vibration column under the action of pressure. The vibration column is made of high-strength alloy steel and has good vibration resistance and wear resistance. The vibration column is relatively vertically mounted on the first mounting platform. The material receiving part is located at one end of the vibration column close to the first mounting platform, and is connected to the first feed port to ensure that the raw materials can smoothly enter the material receiving part from the first feed port. The second cavity inside the vibration column is cylindrical and connected to the first cavity by a sealed connection to ensure that the hot air will not leak. Several ventilation holes on the vibration column are evenly distributed on the surface of the column, and the aperture size is moderate, which can not only ensure the smooth outflow of hot air, but also prevent the material from blocking the ventilation holes. The rising spiral plate is made of stainless steel, which has good corrosion resistance and thermal conductivity. The rising spiral plate is tightly wrapped around the outside of the vibration column and fixed by welding or bolting. One end of the rising spiral plate is seamlessly connected to the receiving part, so that the raw material can smoothly enter the rising spiral plate from the receiving part. The other end of the rising spiral plate has a discharge part, which corresponds to the first discharge port, and the dried material is output from the discharge part. In the actual operation process, the waste plastic product raw material is put into the first feed port and enters the receiving part of the vibration column. The raw material falls onto the rising spiral plate under the action of gravity, and with the vibration of the vibration column and the rotation of the rising spiral plate, the raw material begins to move slowly upward. At the same time, the hot air generated by the hot air source enters the second cavity through the first cavity and is blown out from the ventilation hole to dry the material on the ascending spiral plate. The temperature and flow rate of the hot air can be adjusted according to the characteristics of the material and the drying requirements to ensure the best drying effect.

[0040] The advantage is that by blowing the hot air directly onto the material on the ascending spiral plate, the contact area between the hot air and the material is increased, thereby improving the drying efficiency. At the same time, the vibration of the vibrating column causes the material to continuously roll and move, further enhancing the drying effect, and being able to quickly and effectively remove moisture from the waste plastic product raw materials. The drying device integrates the cylinder, the first mounting platform, the vibrating column, the ascending spiral plate and other components, with a compact structure and a small footprint. This design makes the device easy to install and arrange in the waste plastic product recycling plant, and can make full use of limited space. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0042] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0043] Figure 2 It is a cross-sectional view of the structure of the present invention;

[0044] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;

[0045] Figure 4 For the present invention Figure 3 Enlarged view of point B in the middle;

[0046] Figure 5 It is a schematic diagram of the internal structure of the present invention;

[0047] Figure 6 For the present invention Figure 5 Enlarged view of point C in the middle;

[0048] Figure 7 This is a schematic diagram of the structure of the first rotating drum of the present invention;

[0049] Figure 8 It is a cross-sectional view of the first rotating drum of the present invention;

[0050] Fig. 9 It is a schematic diagram of the structure of the first sliding cylinder of the present invention;

[0051] Fig.10 It is a cross-sectional view of the first sliding cylinder of the present invention;

[0052] Fig.11 It is a partial structural schematic diagram of the present invention;

[0053] Fig.12 It is a partial structural cross-sectional view of the present invention;

[0054] Fig.13 It is an enlarged view of the local structure of the present invention.

[0055] In the figure: 1. cylinder, 101. first feed port, 102. first discharge port, 2. first mounting platform, 201. first cavity, 3. vibration column, 301. receiving part, 302. second cavity, 303. ventilation hole, 4. ascending spiral plate, 401. discharge part, 5. vibration motor, 6. first elastic member, 7. descending spiral plate, 2011. first mounting part, 304. spiral slide groove, 8. telescopic member, 9. slider, 10. rotating rod, 11. scraper, 12. weight-bearing member, 2012. first groove, 801. rotating shaft, 8011. second groove, 802. first sliding cylinder, 803. first rotating cylinder, 804. second sliding cylinder, 13. return plate, 14. rotating plate, 1401. first bevel gear, 15. rotating handle, 1501. second bevel gear, 16. maintenance ladder. DETAILED DESCRIPTION

[0056] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0057] In order to simplify the drawings, only the parts related to the invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0058] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0060] Reference Figure 1 to Figure 13, which is the first embodiment of the present invention, proposes a raw material drying device for recycling waste plastic products, including a cylinder 1, the cylinder 1 has a first feed port 101 and a first discharge port 102; a first mounting platform 2 is arranged in the cylinder 1, the first mounting platform 2 has a first cavity 201, and the first cavity 201 is connected to a hot air source; a vibration column 3 is relatively vertically arranged on the first mounting platform 2, the vibration column 3 has a receiving portion 301 at one end close to the first mounting platform 2, the receiving portion 301 is connected to the first feed port 101, the vibration column 3 has a second cavity 302 inside, the second cavity 302 is connected to the first cavity 201, and the vibration column 3 also has a plurality of ventilation holes 303, and the cylinder 1 is connected to the second cavity 302 through the ventilation holes 303; an ascending spiral plate 4 is arranged on the outside of the vibration column 3, one end of the ascending spiral plate 4 is abutted against the receiving portion 301, and the other end of the ascending spiral plate 4 has a discharge portion 401, and the discharge portion 401 is connected to the first discharge port 102.

[0061] In this embodiment, in order to solve the problem of uneven drying of crushed plastic particles in the related art, a raw material drying device for recycling waste plastic products is designed. The cylinder 1 is made of a sturdy and durable metal material, is cylindrical in shape, and has good sealing and stability. The first feed port 101 is located on one side of the top of the cylinder 1, and is funnel-shaped, which is convenient for the input of waste plastic product raw materials. The first discharge port 102 is arranged on one side of the bottom of the cylinder 1, and is used to discharge the dried material. The first mounting platform 2 is firmly fixed to the bottom center position inside the cylinder 1 by welding or bolting. The first cavity 201 inside the first mounting platform 2 is connected to the external hot air source. The hot air source can be an industrial hot air blower that can generate stable high-temperature hot air. After the hot air enters the first cavity 201 through the pipeline, it flows to the second cavity 302 inside the vibration column 3 under the action of pressure. The vibration column 3 is made of high-strength alloy steel and has good vibration resistance and wear resistance. The vibration column 3 is relatively vertically mounted on the first mounting platform 2. The material receiving part 301 is located at one end of the vibration column 3 close to the first mounting platform 2, and is connected to the first feed port 101 to ensure that the raw materials can smoothly enter the material receiving part 301 from the first feed port 101. The second cavity 302 inside the vibration column 3 is cylindrical and is connected to the first cavity 201 by a sealed connection to ensure that the hot air will not leak. Several ventilation holes 303 on the vibration column 3 are evenly distributed on the surface of the column, and the aperture size is moderate, which can not only ensure the smooth outflow of hot air, but also prevent the material from blocking the ventilation holes 303. The rising spiral plate 4 is made of stainless steel and has good corrosion resistance and thermal conductivity. The rising spiral plate 4 is tightly wrapped around the outside of the vibration column 3 and fixed by welding or bolting. One end of the rising spiral plate 4 is seamlessly connected to the material receiving part 301, so that the raw materials can smoothly enter the rising spiral plate 4 from the material receiving part 301. The other end of the ascending spiral plate 4 has a discharge portion 401, which corresponds to the first discharge port 102, and the dried material is output from the discharge portion 401. In the actual operation process, the waste plastic product raw material is put into the first feed port 101 and enters the receiving portion 301 of the vibration column 3. The raw material falls onto the ascending spiral plate 4 under the action of gravity, and with the vibration of the vibration column 3 and the rotation of the ascending spiral plate 4, the raw material begins to move slowly upward. At the same time, the hot air generated by the hot air source enters the second cavity 302 through the first cavity 201, and then blows out from the ventilation hole 303 to dry the material on the ascending spiral plate 4. The temperature and flow rate of the hot air can be adjusted according to the characteristics of the material and the drying requirements to ensure the best drying effect.

[0062] The advantage is that by blowing the hot air directly onto the material on the ascending spiral plate 4, the contact area between the hot air and the material is increased, thereby improving the drying efficiency. At the same time, the vibration of the vibration column 3 causes the material to continuously roll and move, further enhancing the drying effect, and being able to quickly and effectively remove moisture from the waste plastic product raw materials. The drying device integrates the cylinder 1, the first mounting platform 2, the vibration column 3, the ascending spiral plate 4 and other components, with a compact structure and a small footprint. This design makes the device easy to install and arrange in a waste plastic product recycling plant, and can make full use of limited space.

[0063] Furthermore, it also includes a vibration motor 5, which has two vibration motors 5. The two vibration motors 5 are relatively arranged at one end of the vibration column 3 away from the first mounting platform 2; there are a plurality of first elastic members 6, and the two ends of the first elastic members 6 are respectively abutted against the first mounting platform 2 and the vibration column 3, so as to reduce the transmission of vibration between the vibration column 3 and the first mounting platform 2.

[0064] In this embodiment, the vibration motor 5 uses a high-performance industrial vibration motor with large vibration force and stable performance. The two vibration motors 5 are relatively arranged at one end of the vibration column 3 away from the first mounting platform 2, and are firmly fixed on the vibration column 3 by bolt connection or welding. The position of the vibration motor 5 is accurately calculated and adjusted to ensure that the generated vibration force can be evenly transmitted to the vibration column 3 and the ascending spiral plate 4, so that the material can fully vibrate and roll during the ascending process, thereby improving the drying effect. The first elastic member 6 is made of elastic materials such as high-strength springs or elastic rubber pads. The number of the first elastic members 6 is reasonably configured according to the size and weight of the vibration column 3, and generally multiple members are evenly distributed between the first mounting platform 2 and the vibration column 3. The two ends of the first elastic member 6 are respectively abutted against the first mounting platform 2 and the vibration column 3, and the vibration energy transmitted from the vibration column 3 is absorbed and buffered by elastic deformation, thereby reducing the impact of vibration on the first mounting platform 2 and the cylinder 1. In the actual operation process, when the vibration motor 5 is started, the vibration force generated causes the vibration column 3 and the ascending spiral plate 4 to start vibrating. The first elastic member 6 will undergo compression and tensile deformation under the action of vibration, thereby effectively reducing the transmission of vibration. At the same time, the elastic restoring force of the first elastic member 6 will also provide a certain support to the vibration column 3 , so that the vibration column 3 maintains a relatively stable position during the vibration process, ensuring that the material can move smoothly on the ascending spiral plate 4 .

[0065] The advantage is that the vibration force generated by the vibration motor 5 causes the material to continuously vibrate and roll on the ascending spiral plate 4, increasing the contact area between the material and the hot air, allowing the hot air to more fully penetrate the material layer and improving the drying efficiency. At the same time, vibration can also prevent the material from accumulating and clogging on the ascending spiral plate 4, ensuring the smooth flow of the material. The setting of the first elastic member 6 can effectively reduce the transmission of vibration between the vibration column 3 and the first mounting platform 2, reduce the impact of vibration on other parts of the equipment, and reduce the probability of damage to the equipment and failure. In particular, for fixed parts such as the cylinder 1 and the first mounting platform 2, fatigue damage caused by vibration can be reduced and the service life of the equipment can be extended. The vibration motor 5 will generate a lot of noise during operation, and the shock-absorbing effect of the first elastic member 6 can reduce the spread of noise and reduce the noise pollution to the surrounding environment when the equipment is running. This is particularly important for drying devices used in noise-sensitive areas such as factory workshops. Through the elastic support of the first elastic member 6, the vibration column 3 can maintain a relatively stable position during the vibration process, and will not produce excessive displacement and shaking due to vibration. This helps to improve the overall stability of the equipment, ensures that the material can move accurately on the ascending spiral plate 4, and improves the consistency of the drying effect.

[0066] Furthermore, it also includes a descending spiral plate 7, which is arranged on the inner side of the cylinder 1, and the discharge part 401 is connected to the first discharge port 102 through the descending spiral plate 7.

[0067] In this embodiment, in the raw material drying device for recycling waste plastic products, the descending spiral plate 7 is made of stainless steel, which has good corrosion resistance and strength. The descending spiral plate 7 is installed at a specific position inside the cylinder 1, and cooperates with the ascending spiral plate 4 to form a continuous material conveying channel. The shape of the descending spiral plate 7 is spiral, and its pitch and diameter are designed according to the internal space of the cylinder 1 and the characteristics of the material. For example, for waste plastic products with smaller particles, a descending spiral plate 7 with a smaller pitch and a relatively larger diameter can be selected to ensure that the material can slowly descend and fully contact with hot air for drying. The starting end of the descending spiral plate 7 is connected to the discharge portion 401 of the ascending spiral plate 4, so that the material output from the ascending spiral plate 4 can smoothly enter the descending spiral plate 7. This connection can be welded, bolted or other reliable connection methods to ensure that there will be no material leakage during the operation of the equipment. During the installation of the descending spiral plate 7, it is also necessary to consider the coordination with other components inside the cylinder 1. For example, it is necessary to ensure that there is enough space between the descending spiral plate 7 and the cylinder 1 so that hot air can circulate in the entire device to fully dry the material. At the same time, the installation position of the descending spiral plate 7 should also be convenient for connecting with the first discharge port 102, so that the dried material can be discharged from the equipment smoothly. In the actual operation process, after the material enters the descending spiral plate 7 from the discharge portion 401 of the ascending spiral plate 4, it slowly spirals down along the descending spiral plate 7 under the action of gravity. In this process, the hot air continues to dry the material to ensure that the moisture in the material is removed to the maximum extent.

[0068] The advantage is that the setting of the descending spiral plate 7 increases the residence time of the material in the equipment, so that the material can be dried more fully under the action of hot air. Compared with the drying device with only the ascending spiral plate 4, this design can significantly improve the drying effect, especially for waste plastic products with high water content. As the material slowly descends on the descending spiral plate 7, the hot air can contact the material more evenly and deeply dry the material. This helps to improve the drying quality, reduce the residual moisture in the material, and provide better raw materials for the subsequent recycling process.

[0069] Furthermore, the ventilation holes 303 are evenly distributed in a spiral on the vibration column 3 , with the same pitch as the ascending spiral plate 4 , and the ventilation holes 303 face the ascending spiral plate 4 .

[0070] In this embodiment, in the raw material drying device for recycling waste plastic products, the descending spiral plate 7 is made of corrosion-resistant stainless steel. It is carefully installed on the inner side of the cylinder 1 and cooperates with the ascending spiral plate 4 to jointly complete the material conveying and drying process. The descending spiral plate 7 is spiral in shape, and its pitch and diameter are precisely designed to meet the drying requirements of different types of waste plastic products. For example, for waste plastics with smaller particles, a descending spiral plate 7 with a relatively small pitch and a moderate diameter can be selected to ensure that the material can slowly descend and fully contact with hot air for drying. A certain distance is maintained between the starting end of the descending spiral plate 7 and the discharge portion 401 of the ascending spiral plate 4, and a reasonable transition structure is connected so that the material output from the ascending spiral plate 4 can smoothly enter the descending spiral plate 7, while avoiding blockage or leakage of the material during the transfer process. When installing the descending spiral plate 7, full consideration is given to the coordination with other components inside the cylinder 1. Sufficient space is left between the descending spiral plate 7 and the cylinder 1 so that hot air can circulate freely in the entire device to fully dry the material. At the same time, the position design of the descending spiral plate 7 is convenient for connection with the first discharge port 102, so that the dried material can be discharged from the equipment smoothly. In the actual operation process, when the material comes out of the discharge portion 401 of the ascending spiral plate 4, it enters the descending spiral plate 7 after a short transition. Under the action of gravity, the material slowly spirals down along the descending spiral plate 7. In this process, the hot air continues to dry the material to ensure that the moisture in the material is removed to the maximum extent.

[0071] The advantage is that the setting of the descending spiral plate 7 increases the residence time of the material in the equipment, so that the material can be dried more fully under the continuous action of hot air. Especially for waste plastic products with high water content, this design can significantly improve the drying effect. Since the material slowly descends on the descending spiral plate 7, the hot air can contact the material more evenly and deeply dry the material. The spacing between the ventilation hole 303 and the ascending spiral plate 4 prevents the material from accidentally falling into the ventilation hole 303 and affecting the stability of the drying process, thereby improving the drying quality, reducing the residual moisture in the material, and providing better raw materials for the subsequent recycling process. Different types of waste plastic products may have different drying requirements. By adjusting the pitch, diameter and other parameters of the descending spiral plate 7, the characteristics of different materials can be adapted and the adaptability of the equipment can be improved. For example, for some waste plastic products that are easy to stick together, a descending spiral plate 7 with a larger pitch can be selected to prevent the material from sticking together during the descent process.

[0072] Furthermore, the side wall of the first cavity 201 has a first mounting portion 2011, and the vibration column 3 also has a spiral groove 304, the spiral groove 304 has the same pitch as the rising spiral plate 4, and also includes a slider 9, which is slidably arranged in the spiral groove 304; the rotating rod 10 passes through and is rotatably arranged on the slider 9; the scraper 11 is eccentrically arranged at one end of the rotating rod 10, located outside the second cavity 302, and the scraper 11 is abutted or not abutted against the rising spiral plate 4; the weight-bearing member 12 is eccentrically arranged at the other end of the rotating rod 10, in the opposite direction of the eccentricity of the scraper 11; one end of the telescopic member 8 is arranged in the first mounting portion 2011, and the protruding end of the telescopic member 8 is located in the second cavity 302. After the telescopic member 8 is extended, the protruding end of the telescopic member 8 abuts against the weight-bearing member 12, so that the scraper 11 abuts against the rising spiral plate 4, and pushes the weight-bearing member 12 close to the vibration motor 5, so that the slider 9 slides along the spiral groove 304.

[0073] In this embodiment, the first mounting portion 2011 located in the first cavity 201 is made of a solid metal material and is fixed at a specific position of the first cavity 201 by precise welding or firm bolt connection, providing a stable installation foundation for subsequent components. The spiral chute 304 designed on the vibration column 3 is precisely consistent with the pitch of the ascending spiral plate 4. The depth and width of the spiral chute 304 are calculated to perfectly fit the size of the slider 9 to ensure that the slider 9 can slide unhindered in the chute. The slider 9 is made of high-strength and wear-resistant material, and its shape fits tightly with the spiral chute 304. The slider 9 is accurately installed in the spiral chute 304 and can slide smoothly along the spiral trajectory under the guidance of the chute. The rotating rod 10 is a cylindrical rod that passes through the slider 9 and is flexibly connected to the rotation through high-quality bearings. The diameter of the rotating rod 10 is slightly smaller than the diameter of the mounting hole on the slider 9 to ensure smooth rotation. The scraper 11 is a plate-like component with moderate elasticity and excellent wear resistance, which is eccentrically arranged at one end of the rotating rod 10 and is located outside the second cavity 302. The shape and size of the scraper 11 are designed according to the size and shape of the ascending spiral plate 4 so that the material on the ascending spiral plate 4 can be effectively cleaned when needed. The load-bearing member 12 is a block-like component with a certain weight, which is eccentrically arranged at the other end of the rotating rod 10, opposite to the eccentric direction of the scraper 11. When designing, the load-bearing member 12 is deliberately made heavier than the scraper 11. When the extended end of the telescopic member 8 does not abut against the load-bearing member 12, due to the heavier gravity of the load-bearing member 12 and the reverse eccentricity of the two, the scraper 11 does not contact the ascending spiral plate 4, avoiding interference with the normal transportation of the material when cleaning is not required. The telescopic member 8 can be a device such as a hydraulic rod or an electric push rod with reliable performance. One end of the telescopic member 8 is fixed in the first mounting portion 2011, and the extended end is located in the second cavity 302. When drying sticky materials, if the materials adhere to the ascending spiral plate 4, material blockage may occur. At this time, the telescopic member 8 is started to extend, and the extended end first abuts against the load-bearing member 12, and after the abutment, the scraper 11 quickly abuts against the ascending spiral plate 4. Then, under the continuous action of the abutment force, the load-bearing member 12 is pushed close to the vibration motor 5. Due to the rotational connection of the rotating rod 10 and the sliding restriction of the slider 9 in the spiral chute 304, the slider 9 slides along the spiral chute 304, driving the scraper 11 to move along the spiral trajectory of the ascending spiral plate 4. In this process, the scraper 11 thoroughly cleans the debris adhering to the ascending spiral plate 4, and restores the normal conveying and drying process of the material.

[0074] The advantage is that when drying sticky materials, the scraper 11 can clean the adhered materials on the ascending spiral plate 4 in time, effectively preventing the occurrence of material blockage. Ensure that the equipment can maintain a stable operating state when processing sticky materials and improve production efficiency. The reverse eccentric design and weight difference between the load-bearing member 12 and the scraper 11 realize the automatic contact and separation of the scraper 11 and the ascending spiral plate 4. When cleaning is not required, the scraper 11 does not contact the ascending spiral plate 4 to avoid interfering with the normal transportation of materials; when cleaning is required, it can respond quickly and perform efficient cleaning. Cleaning the adhered materials in time allows the hot air to contact the new materials more fully, avoiding insufficient local drying due to material accumulation. Thereby improving the drying efficiency and drying quality, and providing better raw materials for subsequent recycling processing. The automatic control of the telescopic member 8 makes the cleaning action of the scraper 11 without manual intervention, which greatly improves the automation of the equipment. It reduces the labor intensity and safety risks of manual operation, and also reduces equipment failures caused by human factors. Cleaning the adhered materials can reduce the wear and corrosion of the materials on the ascending spiral plate 4 and extend the service life of the ascending spiral plate 4. At the same time, it reduces equipment failures and maintenance costs caused by problems such as blockage, and improves equipment reliability and stability.

[0075] Furthermore, the telescopic member 8 includes a rotating shaft 801, which vertically penetrates and is rotatably set on the first mounting portion 2011, and a first sliding cylinder 802 is vertically slidably set in the first mounting portion 2011, and the first sliding cylinder 802 is threadedly connected to the rotating shaft 801; there are multiple first rotating cylinders 803, and the radii of the multiple first rotating cylinders 803 increase successively and are slidably connected to each other. The first rotating cylinder 803 located on the inner side is slidably set on the rotating shaft 801, and the multiple first rotating cylinders 803 all rotate synchronously with the rotating shaft 801; there are multiple second sliding cylinders 804, and the radii of the multiple second sliding cylinders 804 increase successively and are slidably connected, and the multiple second sliding cylinders 804 are threadedly connected to the multiple first rotating cylinders 803 at one end close to the first mounting portion 2011.

[0076] In this embodiment, the rotating shaft 801 is made of strong and durable high-strength alloy steel, which has excellent wear resistance and torsional strength. The rotating shaft 801 vertically penetrates the first mounting portion 2011 and realizes the rotation setting through a precision bearing. Driven by an external power source, the rotating shaft 801 can rotate stably. The first sliding cylinder 802 is also made of high-strength metal material. Between the outer wall of the first sliding cylinder 802 and the inner wall of the first mounting portion 2011, a structure of a limited position protrusion and a limited position groove is set. The limited position protrusion and the limited position groove cooperate with each other, so that the first sliding cylinder 802 can only slide vertically in the first mounting portion 2011, and cannot rotate. The inner wall of the first sliding cylinder 802 is provided with a thread matching the rotating shaft 801. When the rotating shaft 801 rotates, due to the effect of the threaded connection and the limited position structure, the first sliding cylinder 802 will slide vertically stably along the axial direction of the rotating shaft 801. There are multiple first rotating cylinders 803, and the radius increases successively. Each first rotating cylinder 803 is precision machined to ensure smooth sliding connection with each other. There is a special plug-in structure between the first sliding cylinder 802 and the first rotating cylinder 803. When the first sliding cylinder 802 slides vertically driven by the rotating shaft 801, the plug-in structure can drive the first rotating cylinder 803 that rotates synchronously with the rotating shaft 801 to also slide vertically. There are also multiple second sliding cylinders 804, with increasing radii and sliding connection with each other. The ends of the multiple second sliding cylinders 804 close to the first mounting portion 2011 are respectively threadedly connected to the multiple first rotating cylinders 803. When the first rotating cylinder 803 rotates, it will drive the second sliding cylinder 804 to slide along the axial direction.

[0077] In the actual working process, when the telescopic member 8 needs to be extended, the external power source drives the rotating shaft 801 to rotate. The rotation of the rotating shaft 801 drives the first sliding cylinder 802 to slide upward. Due to the effect of the limiting structure, the first sliding cylinder 802 cannot rotate and can only slide vertically. The first sliding cylinder 802 drives the first rotating cylinder 803 to slide upward through the plug-in structure. At the same time, due to the synchronous rotation relationship between the rotating shaft 801 and the first rotating cylinder 803, the first rotating cylinder 803 will also rotate during the upward sliding process. The rotation of the first rotating cylinder 803 causes the second sliding cylinder 804 threadedly connected thereto to extend outward. Multiple first rotating cylinders 803 and second sliding cylinders 804 extend out in sequence, together forming the extended end of the telescopic member 8, abutting against the load-bearing member 12, pushing the scraper 11 to contact the ascending spiral plate 4 and perform cleaning work.

[0078] The advantage is that the structure of the limiting protrusion and the limiting groove ensures that the first sliding cylinder 802 can only slide vertically in the first mounting portion 2011, avoiding unnecessary rotation, thereby realizing accurate control of the movement direction of the first sliding cylinder 802. This makes the extension and retraction process of the telescopic member 8 more stable and reliable, and can accurately abut against the load-bearing member 12 to ensure the cleaning effect of the scraper 11 on the ascending spiral plate 4. The plug-in structure between the first sliding cylinder 802 and the first rotating cylinder 803 enables them to achieve synchronous vertical sliding and rotation under the action of the rotating shaft 801. This synchronous movement improves the coordination and stability between the various components of the telescopic member 8. During the working process, it can ensure that multiple first rotating cylinders 803 and second sliding cylinders 804 are extended in sequence and work together to avoid jamming or asynchronism.

[0079] Furthermore, the weight-bearing member 12 is rotatably disposed at one end of the rotating rod 10 located in the second cavity 302 .

[0080] In this embodiment, the weight member 12 is a metal block or other weight of a specific weight and shape. A connection structure, such as a sleeve or a bearing, is provided at one end of the rotating rod 10 located in the second cavity 302, so that the weight member 12 can rotate freely on the rotating rod 10. The rotation connection of the weight member 12 ensures that during the operation of the scraper 11, as the scraper 11 contacts and moves with the ascending spiral plate 4, the weight member 12 can automatically adjust its angle according to the force conditions to maintain the balance and stability of the system.

[0081] The advantage is that the rotating design of the weight-bearing member 12 enables the angle to be automatically adjusted according to different stress conditions when the scraper 11 contacts the ascending spiral plate 4 and performs cleaning work, thereby maintaining the dynamic balance of the entire system. This helps to reduce damage to other parts of the equipment due to uneven force and improve the stability and reliability of the equipment. Under different working conditions, factors such as the distribution of materials and the position of the scraper 11 may change. The rotation of the weight-bearing member 12 can adapt to these changes, ensuring that the scraper 11 can always effectively contact the ascending spiral plate 4 and perform cleaning work, thereby improving the adaptability of the equipment to different working conditions. The rotating weight-bearing member 12 can reduce friction with other parts and reduce the degree of wear. Especially during the operation of the scraper 11, the rotation of the weight-bearing member 12 can avoid hard friction with surrounding parts and extend the service life of the equipment.

[0082] Furthermore, it also includes a return plate 13, which is arranged at the end of the descending spiral plate 7, and the return plate 13 connects the descending spiral plate 7 and the material receiving part 301; one end of the rotating plate 14 is rotatably arranged at the end of the descending spiral plate 7, and after the rotating plate 14 rotates, the descending spiral plate 7 is connected to the first discharge port 102 or the material receiving part 301.

[0083] In this embodiment, the return plate 13 is made of a solid metal material and is installed at the end of the descending spiral plate 7. The shape and size of the return plate 13 are designed according to the connection requirements of the descending spiral plate 7 and the material receiving part 301. One end of the return plate 13 is connected to the descending spiral plate 7 to ensure that the material can flow smoothly from the descending spiral plate 7 to the return plate 13. The other end of the return plate 13 is connected to the material receiving part 301 to form a material reflux channel. The rotating plate 14 is a rotatable metal plate or a plate of other materials, one end of which is installed at the end of the descending spiral plate 7 through a rotating connection device such as a hinge or a rotating shaft 801. The rotating plate 14 can rotate freely within a certain angle range to control the flow direction of the material. When the rotating plate 14 rotates to different positions, the descending spiral plate 7 can be connected to the first discharge port 102 or the material receiving part 301 respectively.

[0084] The advantage is that the setting of the rotating plate 14 allows the user to flexibly control the flow direction of the material according to actual needs. If the material needs to be dried again, the rotating plate 14 can be rotated to the position where the descending spiral plate 7 is connected to the material receiving part 301, so that the material can flow back to the material receiving part 301 for re-drying. If the material has been fully dried, the rotating plate 14 can be rotated to the position where the descending spiral plate 7 is connected to the first discharge port 102 to output the material. Through the cooperation of the return plate 13 and the rotating plate 14, the insufficiently dried material can be dried again to ensure that the material reaches the required degree of dryness. This improves the drying effect of the drying device and ensures the quality of the recycled waste plastic product raw materials. The user can adjust the position of the rotating plate 14 at any time according to the production progress and the drying condition of the material to achieve control of the material flow direction. This helps to optimize the production process and improve production efficiency.

[0085] Furthermore, the rotating plate 14 has a first bevel tooth 1401 at one end away from the descending spiral plate 7, and also includes a rotating handle 15. The rotating handle 15 penetrates and is rotatably arranged on the cylinder body 1. One end located inside the cylinder body 1 has a second bevel tooth 1501, which is engaged with the first bevel tooth 1401. When the rotating handle 15 is rotated, the rotating plate 14 is driven to rotate.

[0086] In this embodiment, the end of the rotating plate 14 away from the descending spiral plate 7 is provided with a first bevel gear 1401. The rotating handle 15 is a manually operable rod, which penetrates and is rotatably arranged on the cylinder 1. The end of the rotating handle 15 located in the cylinder 1 is provided with a second bevel gear 1501, which is meshed with the first bevel gear 1401 on the rotating plate 14. When the user rotates the rotating handle 15, the rotating plate 14 is driven to rotate through the transmission effect of the bevel gear.

[0087] The advantage is that the setting of the rotating handle 15 allows the user to conveniently operate the rotating plate 14 outside the device without entering the device to perform complicated operations. This improves the convenience and safety of operation and reduces the difficulty of operation. Through the transmission of the rotating handle 15 and the bevel gear, the rotation angle of the rotating plate 14 can be accurately controlled. The user can accurately rotate the rotating plate 14 to the desired position according to actual needs to ensure the accuracy and stability of the material flow direction.

[0088] Furthermore, a maintenance ladder 16 is included, one end of which is arranged outside the cylinder 1 and the other end is in contact with the ground.

[0089] In this embodiment, the maintenance ladder 16 is made of metal material, one end of which is firmly mounted on the outside of the cylinder 1, and the other end is in contact with the ground. The shape and size of the maintenance ladder 16 are designed according to the height and maintenance requirements of the equipment, ensuring that maintenance personnel can safely and conveniently climb the maintenance ladder 16 to reach various parts of the equipment for maintenance and maintenance work.

[0090] The advantage is that the arrangement of the maintenance ladder 16 provides a convenient passage for maintenance personnel, allowing them to easily reach various parts of the equipment for maintenance and maintenance work. This improves the maintainability of the equipment and reduces maintenance time and cost.

[0091] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A raw material drying device for recycling waste plastic products, characterized in that: include: A cylinder (1), wherein the cylinder (1) has a first feed inlet (101) and a first discharge outlet (102); A first mounting platform (2), the first mounting platform (2) being arranged in the cylinder (1), the first mounting platform (2) having a first cavity (201), the first cavity (201) being in communication with a hot air source; A vibration column (3), the vibration column (3) being relatively vertically arranged on the first mounting platform (2), the vibration column (3) having a material receiving portion (301) at one end close to the first mounting platform (2), the material receiving portion (301) being connected to the first feed port (101), the vibration column (3) having a second cavity (302) inside, the second cavity (302) being connected to the first cavity (201), and the vibration column (3) also having a plurality of ventilation holes (303), the interior of the cylinder (1) being connected to the second cavity (302) via the ventilation holes (303); An ascending spiral plate (4), the ascending spiral plate (4) being arranged outside the vibrating column (3), one end of the ascending spiral plate (4) being in contact with the material receiving portion (301), and the other end of the ascending spiral plate (4) being provided with a material discharging portion (401), and the material discharging portion (401) being connected to the first material discharging port (102); A vibration motor (5), wherein the vibration motors (5) are two in number, and the two vibration motors (5) are arranged opposite to each other at one end of the vibration column (3) away from the first mounting platform (2); a first elastic member (6), wherein the first elastic member (6) is provided in a plurality of numbers, and the two ends of the first elastic member (6) are respectively in contact with the first mounting platform (2) and the vibration column (3), so as to reduce the transmission of vibration between the vibration column (3) and the first mounting platform (2); a descending spiral plate (7), the descending spiral plate (7) being arranged on the inner wall of the cylinder (1), the discharge portion (401) being connected to the first discharge port (102) via the descending spiral plate (7); The side wall of the first cavity (201) has a first mounting portion (2011), the vibration column (3) further has a spiral groove (304), the spiral groove (304) has the same pitch as the ascending spiral plate (4), and further comprises: A sliding block (9), the sliding block (9) being slidably disposed in the spiral sliding groove (304); A rotating rod (10), the rotating rod (10) passing through and rotatably disposed on the sliding block (9); a scraper (11), the scraper (11) being eccentrically arranged at one end of the rotating rod (10) and located outside the second cavity (302), the scraper (11) being in contact with or not in contact with the ascending spiral plate (4); A weight-bearing member (12), the weight-bearing member (12) being eccentrically arranged at the other end of the rotating rod (10) and in an eccentric direction opposite to that of the scraper (11); a telescopic member (8), one end of the telescopic member (8) being arranged in the first mounting portion (2011), the extended end of the telescopic member (8) being located in the second cavity (302), and after the telescopic member (8) is extended, the extended end of the telescopic member (8) abuts against the load-bearing member (12), so that the scraper (11) abuts against the ascending spiral plate (4), and pushes the load-bearing member (12) close to the vibration motor (5), so that the slider (9) slides along the spiral slide groove (304); The telescopic member (8) comprises: a rotating shaft (801), the rotating shaft (801) vertically penetrating and rotatably disposed on the first mounting portion (2011), A first sliding cylinder (802), the first sliding cylinder (802) being vertically slidably disposed in the first mounting portion (2011), the first sliding cylinder (802) being threadedly connected to the rotating shaft (801); a first rotating cylinder (803), wherein the first rotating cylinder (803) comprises a plurality of first rotating cylinders (803), the radii of the plurality of first rotating cylinders (803) being successively increased and being slidably connected to each other, the first rotating cylinder (803) located on the inner side being slidably arranged on the rotating shaft (801), and the plurality of first rotating cylinders (803) all rotate synchronously with the rotating shaft (801); The second sliding cylinder (804) has a plurality of second sliding cylinders (804), the radius of the plurality of second sliding cylinders (804) increases successively and the plurality of second sliding cylinders (804) are slidably connected, and the plurality of second sliding cylinders (804) are respectively threadedly connected to the plurality of first rotating cylinders (803) at one end close to the first mounting portion (2011).

2. A raw material drying device for recycling waste plastic products according to claim 1, characterized in that: The ventilation holes (303) are evenly distributed in a spiral on the vibration column (3) and have the same pitch as the ascending spiral plate (4), and the ventilation holes (303) face the ascending spiral plate (4).

3. A raw material drying device for recycling waste plastic products according to claim 1, characterized in that: The weight-bearing member (12) is rotatably arranged at one end of the rotating rod (10) located in the second cavity (302).

4. A raw material drying device for recycling waste plastic products according to claim 1, characterized in that: Also includes: A material return plate (13), the material return plate (13) being arranged at the end of the descending spiral plate (7), the material return plate (13) connecting the descending spiral plate (7) and the material receiving portion (301); A rotating plate (14), one end of which is rotatably arranged at the end of the descending spiral plate (7); after the rotating plate (14) rotates, the descending spiral plate (7) is connected to the first discharge port (102) or the material receiving portion (301).

5. A raw material drying device for recycling waste plastic products according to claim 4, characterized in that: The rotating plate (14) has a first bevel tooth (1401) at one end away from the descending spiral plate (7), and further comprises: A rotating handle (15) is provided through and rotatably disposed on the cylinder (1), and one end of the rotating handle (15) located inside the cylinder (1) has a second bevel gear (1501) which meshes with the first bevel gear (1401). When the rotating handle (15) is rotated, the rotating plate (14) is driven to rotate.

6. A raw material drying device for recycling waste plastic products according to claim 1, characterized in that: Also includes: A maintenance ladder (16), wherein one end of the maintenance ladder (16) is arranged outside the cylinder (1) and the other end is in contact with the ground.

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