Rolling type drying machine for drying waste plastics

Abstract

The invention discloses a rolling type drying machine for drying waste plastics, and relates to the technical field of drying machines. According to the rolling type drying machine for drying the waste plastics, due to the fact that the guide-in amount of the waste plastics is large, part of the waste plastics cannot absorb heat through contact to be dried in the turning process, and drying is not uniform. A spiral stirring device is matched with a connecting cylinder, and the spiral stirring device drives the waste plastics on the outer side of the connecting cylinder to make contact with a heat conduction cylinder to absorb heat to be dried; meanwhile, when rotating to drive materials, the materials are matched with a spiral empty groove, so that the materials naturally fall into a connecting cylinder through the gravity of the waste plastics when reaching the upper part, the materials are in uniform contact with and absorb heat to be dried, and the situation that part of the waste plastics cannot contact a heat conduction mechanism, so that the absorbed heat is less, and drying is not uniform is avoided; and moisture in part of the waste plastics is not dried.

Description

Technical Field

[0001] The invention relates to the technical field of dryers, in particular to a tumbling dryer for drying waste plastics. Background Art

[0002] Waste plastic drying is an important part of the waste plastic recycling process, which aims to remove moisture from waste plastics to facilitate subsequent processing. Among them, tumble dryers are widely used in the field of waste plastic drying. The tumble dryer drives the drying cylinder to rotate through a motor, and the waste plastics are constantly tumbling and stirring in the cylinder, which makes the heating more uniform. The heat generated by the heating system is transferred to the waste plastics, so that the moisture inside them evaporates into water vapor and is discharged from the drying cylinder, thereby achieving rapid drying of the waste plastics.

[0003] In the process of drying waste plastics, due to the large amount of waste plastics introduced, some of the waste plastics cannot be dried by absorbing heat through contact during the turning process, resulting in uneven drying. Summary of the invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0005] A tumble dryer for drying waste plastics, comprising:

[0006] A frame, a feeding cylinder is installed on the top of one side of the frame, a discharging cylinder is installed on the bottom of the other side of the frame, and a motor is fixedly installed on the outer side of the frame;

[0007] A heat conduction mechanism, which is installed inside the frame, and a material turning mechanism is installed inside the heat conduction mechanism, and the material turning mechanism is used to turn the waste plastics and drive them to be discharged;

[0008] A material storage mechanism, which is installed inside the material turning mechanism, and the material storage mechanism cooperates with the material turning mechanism to turn over the waste plastics;

[0009] Among them, the material turning mechanism includes a connecting cylinder, the inner wall of the connecting cylinder is fixedly connected to the outer side of the heat conducting mechanism, and the outer side of the connecting cylinder is evenly opened with spiral grooves, the outer side of the connecting cylinder is fixedly connected with a spiral stirring plate, and the spiral stirring plate is evenly installed along the center position of the connecting cylinder, and cooperates with the connecting cylinder through spiral stirring, so that the spiral stirring drives the waste plastic on the outer side of the connecting cylinder to contact the heat conducting cylinder, absorb heat for drying, and at the same time, when the material is driven by rotation, it cooperates with the spiral grooves, so that when the waste plastic reaches the top, it naturally falls into the inside of the connecting cylinder through its own gravity, so that the material is evenly contacted to absorb heat for drying, avoiding the situation that some waste plastics cannot contact the heat conducting mechanism, resulting in less heat absorption and uneven drying, and the moisture in some waste plastics is not dried, and the end of the spiral stirring plate away from the connecting cylinder is tightly fitted with the inner wall of the heat conducting mechanism, and the spiral stirring plate is located between the spiral grooves.

[0010] Preferably, the inner wall of the connecting cylinder is fixedly connected with a spiral ridge, and the spiral ridge is located between the spiral grooves, and the spiral ridge corresponds to the spiral stirring plate one by one. Through the cooperation between the spiral ridge and the spiral groove, during the rotation of the connecting cylinder, the bottom layer of waste plastic in the internal space of the connecting cylinder is driven to move, so that it reaches the outside of the connecting cylinder from the spiral groove, contacts the heat-conducting mechanism to absorb heat and dry moisture, so that when the waste plastics on both sides of the connecting cylinder rotate close to the position of the discharge cylinder, the waste plastics on the inside and outside of the connecting cylinder cyclically contact the heat-conducting mechanism to absorb heat, thereby improving the uniformity of drying. The side of the spiral ridge away from the connecting cylinder is a raised arc surface at the center position, and the end of the inner wall of the connecting cylinder close to the discharge cylinder is fixedly connected with a material guide cylinder, and the material guide cylinder is a conical cylinder with an outer diameter gradually decreasing away from the connecting cylinder.

[0011] Preferably, the material storage mechanism includes a transmission shaft, both ends of the transmission shaft are rotatably connected to the inner wall of the frame, and the end of the transmission shaft close to the motor is connected to the output end of the motor through a coupling, the outer side of the transmission shaft is fixedly connected with a fixing plate, the fixing plate is symmetrically installed along the center position of the transmission shaft, and the end of the fixing plate away from the transmission shaft is fixedly connected with a connecting ring, the outer side of the connecting ring is fixedly connected to the inner wall of the connecting cylinder, and the outer side of the transmission shaft is fixedly connected with a material blocking plate, and the side of the material blocking plate close to the connecting ring is tightly attached to the non-opposite surface of the connecting ring. The material blocking plate cooperates with the connecting cylinder to block the path from the inside of the connecting cylinder to the discharge cylinder, so that the waste plastic can only be discharged from the gap between the connecting cylinder and the heat-conducting cylinder, thereby preventing the waste plastic inside the connecting cylinder from being directly discharged from the inside due to excessively fast feeding speed, resulting in the waste plastic being directly discharged without contacting the heat-conducting mechanism for drying, thereby improving the drying effect. A feed cover is fixedly connected to the side of the outer side of the transmission shaft close to the feed cylinder, and the feed cover is a conical cover whose outer diameter increases closer to the feed cylinder, and there is a gap between the outer side of the feed cover and the inner wall of the connecting cylinder.

[0012] Preferably, the heat conducting mechanism comprises a heat conducting tube, both ends of the heat conducting tube are fixedly connected to the inner wall of the frame, and the inner wall of the heat conducting tube is tightly fitted with an end of the spiral stirring plate away from the connecting tube, both ends of the outer side of the heat conducting tube are fixedly installed with end cover tubes, and the top of the end cover tubes is fixedly installed with an air pipe joint, an outer cover tube is fixedly installed between the end cover tubes, a gap exists between the outer cover tube and the heat conducting tube, and a spiral plate is fixedly installed between the outer cover tube and the heat conducting tube, the spiral plate cooperates with the outer cover tube and the heat conducting tube, and the spiral plate is used to guide the flowing high-temperature gas so that it contacts the heat conducting tube evenly, thereby improving the temperature uniformity of various parts of the heat conducting tube, and at the same time, the groove of the spiral plate provides a flow path for the guidance of condensed water in the process of guiding the gas, so that it can smoothly enter the water collecting tank for collection, thereby avoiding a large amount of condensed water between the outer cover tube and the heat conducting tube, absorbing the heat of the subsequently introduced high-temperature gas, affecting the heat transfer to the heat conducting tube, and reducing the utilization rate of the heat of the high-temperature gas, and the spiral plates are evenly installed along the center position of the heat conducting tube.

[0013] Preferably, the spiral plate is evenly provided with grooves on one side close to the outer cover tube, and both ends of the inner wall of the outer cover tube are fixedly connected with water retaining rings. There is a gap between the water retaining ring and the heat conducting tube, and the water retaining rings are used to block the water on both sides of the outer cover tube. In the process of draining out the condensed water, when a large amount of condensed water is gathered at the bottom, the condensed water is blocked to prevent the condensed water from flowing to the end cover tubes on both sides, so that the condensed water can smoothly enter the water collecting cover and be drained out. A water guide groove is provided at the center of the bottom of the outer cover tube, and a water collecting cover is fixedly connected to the water guide groove of the outer cover tube, and a drainage joint is fixedly connected to the center of the bottom of the water collecting cover.

[0014] The present invention provides a tumble dryer for drying waste plastics. It has the following beneficial effects:

[0015] 1. The tumble dryer for drying waste plastics cooperates with the connecting cylinder through spiral stirring, so that the spiral stirring drives the waste plastics on the outside of the connecting cylinder to contact the heat-conducting cylinder to absorb heat for drying. At the same time, when the material is rotated and driven, it cooperates with the spiral empty groove so that when the waste plastics reach the top, they fall naturally into the inside of the connecting cylinder through their own gravity, so that the materials are evenly contacted to absorb heat for drying, avoiding the situation where some waste plastics cannot contact the heat-conducting mechanism, resulting in less heat absorption and uneven drying, and the moisture in some waste plastics is not dried.

[0016] 2. The tumble dryer for drying waste plastics, through the coordination of spiral convex strips and spiral hollow grooves, drives the bottom layer of waste plastics in the internal space of the connecting cylinder to move during the rotation of the connecting cylinder, so that it reaches the outside of the connecting cylinder from the spiral hollow grooves, contacts the heat-conducting mechanism to absorb heat and dry moisture, so that when the waste plastics on both sides of the connecting cylinder rotate close to the position of the discharge cylinder, the waste plastics on the inside and outside of the connecting cylinder cyclically contact the heat-conducting mechanism to absorb heat, thereby improving the uniformity of drying.

[0017] 3. The tumble dryer for drying waste plastics cooperates with the connecting cylinder through the blocking plate to block the path from the inside of the connecting cylinder to the discharge cylinder, so that the waste plastics can only be discharged from the gap between the connecting cylinder and the heat-conducting cylinder. This avoids the waste plastics in the connecting cylinder being directly discharged from the inside due to too fast feeding speed, resulting in the waste plastics being directly discharged without contacting the heat-conducting mechanism for drying, thereby improving the drying effect.

[0018] Fourth, the tumble dryer for drying waste plastics uses a spiral plate to cooperate with an outer cover tube and a heat-conducting tube. The spiral plate is used to guide the flowing high-temperature gas so that it contacts the heat-conducting tube evenly, thereby improving the temperature uniformity of various parts of the heat-conducting tube. At the same time, the grooves of the spiral plate provide a flow path for the condensed water in the process of guiding the gas, so that it can smoothly enter the water collection tank for collection, thereby avoiding a large amount of condensed water between the outer cover tube and the heat-conducting tube, absorbing the heat of the subsequently introduced high-temperature gas, affecting the heat transfer to the heat-conducting tube, and reducing the utilization rate of the heat of the high-temperature gas.

[0019] 5. The tumble dryer for drying waste plastics uses water retaining rings to block the two sides of the outer cover tube. In the process of draining out the condensed water, when a large amount of condensed water is gathered at the bottom, the condensed water is blocked to prevent the condensed water from flowing to the end cover tubes on both sides, so that the condensed water can smoothly enter the water collecting cover and be discharged. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a side view of the structure of the present invention as a whole;

[0022] Figure 3 It is a partial schematic diagram of a tumble dryer for drying plastics according to the present invention;

[0023] Figure 4 It is a structural schematic diagram of the heat conduction mechanism of the present invention;

[0024] Figure 5 It is a structural dissection diagram of the heat conduction mechanism of the present invention;

[0025] Figure 6 It is a schematic diagram of the position structure of the material turning mechanism and the material storing mechanism of the present invention;

[0026] Figure 7 It is a structural schematic diagram of the material turning mechanism of the present invention;

[0027] Figure 8 It is a structural schematic diagram of the material storage mechanism of the present invention;

[0028] Fig. 9 It is a structural side view of the material storage mechanism of the present invention.

[0029] In the figure: 1. frame; 2. heat conduction mechanism; 3. material turning mechanism; 4. material storage mechanism; 5. feed barrel; 6. discharge barrel; 7. motor; 21. outer cover barrel; 22. end cover barrel; 23. air pipe joint; 24. water collecting cover; 25. drainage joint; 26. spiral plate; 27. water retaining ring; 28. heat conduction barrel; 31. connecting barrel; 32. spiral stirring plate; 33. spiral hollow groove; 34. spiral convex strip; 35. material guide barrel; 41. transmission shaft; 42. connecting ring; 43. feed cover; 44. fixing plate; 45. material retaining plate. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] The first embodiment, as Figures 1 to 3 and Figure 6 to Figure 7 As shown, the present invention provides a technical solution: a tumble dryer for drying waste plastics, comprising:

[0032] A frame 1, a feeding cylinder 5 is installed on the top of one side of the frame 1, a discharging cylinder 6 is installed on the bottom of the other side of the frame 1, and a motor 7 is fixedly installed on the outside of the frame 1;

[0033] A heat conducting mechanism 2, which is installed inside the frame 1, and a material turning mechanism 3 is installed inside the heat conducting mechanism 2, and the material turning mechanism 3 is used to turn the waste plastics and drive them to be discharged;

[0034] A material storage mechanism 4, which is installed inside the material turning mechanism 3, and the material storage mechanism 4 cooperates with the material turning mechanism 3 to turn the waste plastics;

[0035] The turning mechanism 3 includes a connecting cylinder 31, the inner wall of the connecting cylinder 31 is fixedly connected to the outer side of the heat conducting mechanism 2, and the outer side of the connecting cylinder 31 is evenly provided with spiral grooves 33, the outer side of the connecting cylinder 31 is fixedly connected with a spiral stirring plate 32, and the spiral stirring plate 32 is evenly installed along the center position of the connecting cylinder 31. The motor 7 drives the connecting cylinder 31 to rotate inside the heat conducting mechanism 2 through the material storage mechanism 4, and cooperates with the material storage mechanism 4. During the rotation process, the waste plastic introduced by the feeding cylinder 5 is driven to enter the inner and outer sides of the connecting cylinder 31. At the same time, during the rotation process, the spiral stirring plate 32 is evenly installed along the center position of the connecting cylinder 31. The spiral stirring plate 32 drives the waste plastic on the outside of the connecting cylinder 31 to move, so that the waste plastic on the outside of the connecting cylinder 31 is fully in contact with the inner wall of the heat conducting cylinder 28, and the spiral shape of the spiral stirring plate 32 drives the waste plastic to move from the side of the feed cylinder 5 to the side of the discharge cylinder 6. At the same time, when the spiral stirring plate 32 drives the waste plastic to the top, the waste plastic falls under its own gravity and enters the interior of the connecting cylinder 31 through the spiral groove 33 of the connecting cylinder 31, and the end of the spiral stirring plate 32 away from the connecting cylinder 31 is tightly fitted with the inner wall of the heat conducting mechanism 2, and the spiral stirring plate 32 is located between the spiral grooves 33.

[0036] The inner wall of the connecting cylinder 31 is fixedly connected with a spiral ridge 34, which is located between the spiral grooves 33, and the spiral ridge 34 corresponds to the spiral stirring plate 32 one by one. The side of the spiral ridge 34 away from the connecting cylinder 31 is a curved surface raised at the center position. During the rotation of the connecting cylinder 31, the waste plastic inside the connecting cylinder 31 is driven by the rotating connecting cylinder 31 to move the waste plastic inside, and the waste plastic inside is evenly distributed below the internal space of the connecting cylinder 31 under the cooperation of its own gravity, and flipped under the rotation of the connecting cylinder 31, and the waste plastic at the bottom is guided to the spiral grooves 33 on both sides by the spiral ridge 34. A material guide cylinder 35 is fixedly connected to one end of the inner wall of the connecting cylinder 31 close to the discharge cylinder 6. The material guide cylinder 35 is a conical cylinder with an outer diameter gradually decreasing away from the connecting cylinder 31.

[0037] The second embodiment is based on the first embodiment. Figures 8 to 9 As shown, the material storage mechanism 4 includes a transmission shaft 41, both ends of which are rotatably connected to the inner wall of the frame 1, and one end of the transmission shaft 41 close to the motor 7 is connected to the output end of the motor 7 through a coupling, and the transmission shaft 41 is driven to rotate by the motor 7, so that the transmission shaft 41 drives the turning mechanism 3 to rotate through the fixed plate 44 and the connecting ring 42. At the same time, during the feeding process, the conical shape of the feeding cover 43 cooperates with the connecting cylinder 31, and the outer side of the transmission shaft 41 is fixedly connected with a fixed plate 44, and the fixed plate 44 is symmetrically installed along the center position of the transmission shaft 41, and the fixed plate 44 is fixedly connected with the connecting ring 42 at one end away from the transmission shaft 41.

[0038] The outer side of the connecting ring 42 is fixedly connected to the inner wall of the connecting cylinder 31, and the outer side of the transmission shaft 41 is fixedly connected with a blocking plate 45. The side of the blocking plate 45 close to the connecting ring 42 is tightly fitted with the non-opposite surface of the connecting ring 42. The side of the outer side of the transmission shaft 41 close to the feeding cylinder 5 is fixedly connected with a feeding cover 43. During the feeding process, the waste plastics are respectively introduced into the inner and outer sides of the connecting cylinder 31 through the gap between the connecting cylinder 31 and the feeding cover 43, and the gap between the connecting cylinder 31 and the heat-conducting cylinder 28. At the same time, during the drying process, the blocking plate 45 cooperates with the connecting cylinder 31, so that the waste plastics can only be discharged from between the connecting cylinder 31 and the heat-conducting cylinder 28 and discharged from the discharging cylinder 6. The feeding cover 43 is a conical cover with a larger outer diameter close to the feeding cylinder 5, and there is a gap between the outer side of the feeding cover 43 and the inner wall of the connecting cylinder 31.

[0039] The third embodiment is based on the first and second embodiments. Figures 4 to 5 As shown, the heat-conducting mechanism 2 includes a heat-conducting tube 28, both ends of which are fixedly connected to the inner wall of the frame 1, and the inner wall of the heat-conducting tube 28 is tightly fitted with the end of the spiral stirring plate 32 away from the connecting tube 31, and both ends of the outer side of the heat-conducting tube 28 are fixedly installed with end cover tubes 22, and the top of the end cover tube 22 is fixedly installed with an air pipe joint 23, and the air inlet pipe of the high-temperature gas is connected to the air pipe joint 23 near the side of the discharge tube 6, so that the air outlet pipe is connected to the air outlet pipe near the side of the feed tube 5. The pipe joint 23 is connected to allow the gas to enter the end cover tube 22 close to the side of the discharge tube 6, and then the high-temperature gas enters the space between the outer cover tube 21 and the heat-conducting tube 28, and moves to the end cover tube 22 close to the feed tube 5. The outer cover tube 21 is fixedly installed between the end cover tubes 22, and there is a gap between the outer cover tube 21 and the heat-conducting tube 28. A spiral plate 26 is fixedly installed between the outer cover tube 21 and the heat-conducting tube 28, and the spiral plate 26 is evenly installed along the center position of the heat-conducting tube 28.

[0040] The spiral plate 26 is evenly provided with notches on one side close to the outer cover tube 21. Both ends of the inner wall of the outer cover tube 21 are fixedly connected with water retaining rings 27. There is a gap between the water retaining ring 27 and the heat conducting tube 28. A water guide groove is provided at the center of the bottom of the outer cover tube 21. During the flow of gas, the flowing gas is guided by the spiral plate 26, so that the heat of the high-temperature gas is transferred to the heat conducting tube 28 during the flow of gas, so that the temperature of the heat conducting tube 28 is increased, and the incoming waste plastic is dried. At the same time, during the heat transfer process, condensation occurs after the heat transfer of the high-temperature gas, and the condensed water droplets are concentrated on the outside of the heat conducting tube 28 and the inner wall of the outer cover tube 21, and slide down again under their own gravity. The condensed water enters the water collecting cover 24 by cooperating with the notches of the spiral plate 26, and the condensed water is discharged through the drainage joint 25 installed at the bottom of the water collecting cover 24. The water collecting cover 24 is fixedly connected to the water guide groove of the outer cover tube 21, and the drainage joint 25 is fixedly connected to the center of the bottom of the water collecting cover 24.

[0041] When in use, the high-temperature gas pipeline is connected to the heat-conducting mechanism 2, so that the high-temperature gas heats the heat-conducting mechanism 2 when passing through the inside of the heat-conducting mechanism 2, and then the motor 7 is started to drive the turning mechanism 3 and the storage mechanism 4 to rotate inside the heat-conducting mechanism 2, and finally the waste plastics are introduced from the feeding barrel 5. After the waste plastics enter, the storage mechanism 4 cooperates with the turning mechanism 3 to drive the waste plastics to move toward the discharge barrel 6, and at the same time, contact with the heat-conducting mechanism 2, so that the moisture in the waste plastics is heated and evaporated, and the waste plastics are dried.

[0042] In the heat conduction mechanism 2, the air inlet pipe of the high-temperature gas is connected to the air pipe joint 23 on the side close to the discharge barrel 6, and the air outlet pipe is connected to the air pipe joint 23 on the side close to the feed barrel 5, so that the gas enters the end cover barrel 22 on the side close to the discharge barrel 6, and then the high-temperature gas enters the space between the outer cover barrel 21 and the heat conduction barrel 28, and moves to the end cover barrel 22 close to the feed barrel 5. During the flow of the gas, the spiral plate 26 guides the flowing gas, so that during the flow of the gas, the heat of the high-temperature gas is transferred to the heat conduction barrel 28, so that the temperature of the heat conduction barrel 28 rises. High, the incoming waste plastics are dried, and in the process of heat transfer, condensation occurs after the heat transfer of the high-temperature gas. The condensed water droplets are concentrated on the outer side of the heat-conducting tube 28 and the inner wall of the outer cover tube 21, and slide downward under their own gravity. When they slide to the notch of the spiral plate 26, they pass through the notch and cooperate with the notch of the spiral plate 26 to concentrate the condensed water at the bottom position between the outer cover tube 21 and the heat-conducting tube 28. Under the action of their own gravity, they enter the water collecting cover 24 and the condensed water is discharged through the drainage joint 25 installed at the bottom of the water collecting cover 24.

[0043] In the turning mechanism 3, the motor 7 drives the connecting cylinder 31 to rotate inside the heat conducting mechanism 2 through the material storage mechanism 4, and cooperates with the material storage mechanism 4. During the rotation, the waste plastic introduced by the feeding cylinder 5 is driven to enter the inner and outer sides of the connecting cylinder 31. At the same time, during the rotation, the spiral stirring plate 32 drives the waste plastic on the outside of the connecting cylinder 31 to move, so that the waste plastic on the outside of the connecting cylinder 31 is fully in contact with the inner wall of the heat conducting cylinder 28, and the spiral shape of the spiral stirring plate 32 drives the waste plastic from one side of the feeding cylinder 5 to the other side of the discharging cylinder 6. When the spiral stirring plate 32 drives the waste plastic to the top, the waste plastic falls down under its own gravity and enters the interior of the connecting cylinder 31 through the spiral empty groove 33 of the connecting cylinder 31. At the same time, during the rotation of the connecting cylinder 31, the waste plastic inside the connecting cylinder 31 drives the waste plastic inside to move, and the waste plastic inside is evenly distributed below the internal space of the connecting cylinder 31 under the cooperation of its own gravity, and flips under the rotation of the connecting cylinder 31, and the waste plastic at the bottom is guided to the spiral empty grooves 33 on both sides through the spiral convex strips 34.

[0044] In the material storage mechanism 4, the transmission shaft 41 is driven to rotate by the motor 7, so that the transmission shaft 41 drives the turning mechanism 3 to rotate through the fixing plate 44 and the connecting ring 42. At the same time, during the feeding process, the conical shape of the feeding cover 43 cooperates with the connecting cylinder 31. During the feeding process, the waste plastics are respectively discharged from the gap between the connecting cylinder 31 and the feeding cover 43 and the gap between the connecting cylinder 31 and the heat-conducting cylinder 28. At the same time, during the drying process, the material blocking plate 45 cooperates with the connecting cylinder 31, so that the waste plastics can only be discharged from between the connecting cylinder 31 and the heat-conducting cylinder 28 and discharged by the discharging cylinder 6.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tumble dryer for drying waste plastics, characterized in that: include: A frame (1), wherein a feed cylinder (5) is mounted on the top of one side of the frame (1), a discharge cylinder (6) is mounted on the bottom of the other side of the frame (1), and a motor (7) is fixedly mounted on the outside of the frame (1); A heat conduction mechanism (2), the heat conduction mechanism (2) being installed inside the frame (1), a material turning mechanism (3) being installed inside the heat conduction mechanism (2), the material turning mechanism (3) being used to turn over the waste plastics and drive them out; A material storage mechanism (4), the material storage mechanism (4) being installed inside the material turning mechanism (3), the material storage mechanism (4) cooperating with the material turning mechanism (3) to turn over the waste plastics; The material turning mechanism (3) comprises a connecting tube (31), the inner wall of the connecting tube (31) is fixedly connected to the outer side of the heat conducting mechanism (2), and the outer side of the connecting tube (31) is evenly provided with spiral grooves (33), the outer side of the connecting tube (31) is fixedly connected with a spiral stirring plate (32), the spiral stirring plate (32) is evenly installed along the center position of the connecting tube (31), and the end of the spiral stirring plate (32) away from the connecting tube (31) is tightly fitted with the inner wall of the heat conducting mechanism (2), and the spiral stirring plate (32) is located between the spiral grooves (33).

2. A tumble dryer for drying waste plastics according to claim 1, characterized in that: The inner wall of the connecting cylinder (31) is fixedly connected with a spiral convex strip (34), the spiral convex strip (34) is located between the spiral hollow grooves (33), and the spiral convex strip (34) corresponds to the spiral stirring plate (32) one by one, and the side of the spiral convex strip (34) away from the connecting cylinder (31) is a centrally raised arc surface, and the end of the inner wall of the connecting cylinder (31) close to the discharge cylinder (6) is fixedly connected with a material guide cylinder (35), and the material guide cylinder (35) is a conical cylinder whose outer diameter gradually decreases away from the connecting cylinder (31).

3. A tumble dryer for drying waste plastics according to claim 2, characterized in that: The material storage mechanism (4) comprises a transmission shaft (41), both ends of the transmission shaft (41) are rotatably connected to the inner wall of the frame (1), and one end of the transmission shaft (41) close to the motor (7) is connected to the output end of the motor (7) via a coupling.

4. A tumble dryer for drying waste plastics according to claim 3, characterized in that: A fixing plate (44) is fixedly connected to the outer side of the transmission shaft (41); the fixing plate (44) is symmetrically installed along the center position of the transmission shaft (41); and a connecting ring (42) is fixedly connected to one end of the fixing plate (44) away from the transmission shaft (41).

5. A tumble dryer for drying waste plastics according to claim 4, characterized in that: The outer side of the connecting ring (42) is fixedly connected to the inner wall of the connecting cylinder (31), and the outer side of the transmission shaft (41) is fixedly connected to a material blocking plate (45), and a side of the material blocking plate (45) close to the connecting ring (42) is tightly fitted to a non-opposite surface of the connecting ring (42).

6. A tumble dryer for drying waste plastics according to claim 5, characterized in that: A feed cover (43) is fixedly connected to the side of the outer side of the transmission shaft (41) close to the feed barrel (5); the feed cover (43) is a conical cover with a larger outer diameter closer to the feed barrel (5), and a gap exists between the outer side of the feed cover (43) and the inner wall of the connecting barrel (31).

7. A tumble dryer for drying waste plastics according to claim 6, characterized in that: The heat-conducting mechanism (2) comprises a heat-conducting tube (28), the two ends of which are fixedly connected to the inner wall of the frame (1), and the inner wall of the heat-conducting tube (28) is tightly fitted to an end of the spiral stirring plate (32) away from the connecting tube (31), and the end cover tubes (22) are fixedly mounted on both ends of the outer side of the heat-conducting tube (28).

8. A tumble dryer for drying waste plastics according to claim 7, characterized in that: An air pipe joint (23) is fixedly mounted on the top of each of the end cover tubes (22); an outer cover tube (21) is fixedly mounted between the end cover tubes (22); a gap exists between the outer cover tube (21) and the heat-conducting tube (28); a spiral plate (26) is fixedly mounted between the outer cover tube (21) and the heat-conducting tube (28); and the spiral plates (26) are evenly mounted along the center of the heat-conducting tube (28).

9. A tumble dryer for drying waste plastics according to claim 8, characterized in that: A side of the spiral plate (26) close to the outer cover tube (21) is evenly provided with notches, and both ends of the inner wall of the outer cover tube (21) are fixedly connected with water retaining rings (27), and a gap exists between the water retaining ring (27) and the heat conducting tube (28).

10. A tumble dryer for drying waste plastics according to claim 9, characterized in that: A water guide groove is provided at the center of the bottom of the outer cover tube (21), and a water collecting cover (24) is fixedly connected to the water guide groove of the outer cover tube (21), and a drainage joint (25) is fixedly connected to the center of the bottom of the water collecting cover (24).

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