A drying device for recycling recycled plastic pellets

Abstract

This utility model discloses a drying device for recycling plastic granules, including a drying chamber and a drive base. The drive base is located on one side of the drying chamber and is fixedly connected to the drying chamber. A feed inlet is located on the other side of the drying chamber. A drying drum with a conical design is located inside the drying chamber, and the feed inlet is connected to the drying drum. A hollow shaft is located at the center of the drying drum and is fixedly connected to the drying drum. The hollow shaft extends through the drive base to the outside of the drive base and is movably connected to the drying chamber. Multiple sets of equally spaced stirring columns are arranged on the surface of the hollow shaft, and the stirring columns are connected to the hollow shaft. This utility model not only achieves multi-stage blowing of drying gas to dry plastic granules, facilitating the stirring and lifting of the plastic granules to ensure more uniform contact between the plastic granules and the drying gas, but also improves the quality of plastic granule drying.

Description

Technical Field

[0001] This utility model relates to the field of plastic pellet recycling technology, specifically a drying device for recycling recycled plastic pellets. Background Technology

[0002] Recycled plastic pellets (hereinafter referred to as recycled pellets) are granular raw materials made by reprocessing waste plastics (such as industrial scraps, household plastic waste, etc.) through physical or chemical methods. When recycling plastic pellets, their surfaces need to be cleaned, and after cleaning, the surface moisture needs to be dried. Traditional drying methods mostly use dryers to blow air or heat them, but with a large number of plastic pellets, it is impossible to blow air or heat them effectively inside, resulting in low drying efficiency and poor drying effect. In order to improve this situation, a drying device for recycling recycled plastic pellets is proposed.

[0003] As disclosed in the authorization announcement number CN222352734U, a drying device for recycling recycled plastic pellets includes a dryer body and a fan installed on the side wall of the dryer body. A placement platform is provided at the bottom of the dryer body, and a support assembly is provided at the top of the placement platform. The support assembly includes: a support plate provided at the top of the placement platform for supporting the dryer body; a right-angle plate provided at the top of the placement platform for fixing the support plate; and a screw provided at the bottom of the placement platform for moving the right-angle plate.

[0004] Although it enables the installation of support components on the placement platform used to support the main body of the dryer, the support plate on the support component can be rotated for easy storage, and the right-angle plate can be driven to fix the support plate by rotating the screw, which increases the stability of the main body of the dryer.

[0005] However, the existing drying equipment does not solve the problem that it is not conducive to multi-stage blowing of drying gas to dry plastic granules, nor is it conducive to stirring and lifting the plastic granules to make the plastic granules contact with the drying gas more evenly, thus affecting the quality of plastic granule drying. Utility Model Content

[0006] The purpose of this invention is to provide a drying device for recycling plastic granules, in order to solve the problems mentioned in the background art, such as the inconvenience of multi-stage blowing of drying gas to dry plastic granules, the difficulty in stirring and lifting the plastic granules to make the plastic granules contact with the drying gas more evenly, and the impact on the quality of drying plastic granules.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a drying device for recycling recycled plastic granules, comprising a drying chamber and a drive base. The drive base is provided on one side of the drying chamber and is fixedly connected to the drying chamber. A feed inlet is provided on the other side of the drying chamber. A drying drum is provided inside the drying chamber, and the drying drum has a conical design. The feed inlet is connected to the drying drum. A hollow shaft is provided at the center of the drying drum and is fixedly connected to the drying drum. The hollow shaft extends through the drive base to the outside of the drive base. The hollow shaft is movably connected to the drying chamber. Multiple sets of stirring columns with equal spacing are provided on the surface of the hollow shaft, and the stirring columns are connected to the hollow shaft. Multiple sets of holes with equal spacing are provided on the surface of the stirring columns. Multiple sets of lifting plates with equal spacing are provided on the inner wall of the drying drum on one side of the stirring columns, and the lifting plates have an arc-shaped design.

[0008] Preferably, multiple sets of air inlet pipes are symmetrically arranged at equal intervals on the side wall of the feed inlet, and each air inlet pipe is provided with a nozzle at its port.

[0009] Preferably, an adapter frame is provided on the outer wall of the drive seat, and the adapter frame is fixedly connected to the drive seat.

[0010] Preferably, the adapter frame has an adapter sleeve on its side wall, and the hollow shaft extends into the interior of the adapter sleeve and is movably connected to the adapter sleeve.

[0011] Preferably, a stepper motor is provided on the side wall of the drive base, and a worm gear is installed at the output end of the stepper motor, and the worm gear is movably connected to the drive base.

[0012] Preferably, a worm wheel is provided on the hollow shaft surface on one side of the worm, and the worm and the worm wheel mesh with each other.

[0013] Preferably, the bottom of the drying box is provided with a discharge port, and the discharge port is connected to the drying drum.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the drying device not only realizes multi-stage blowing of drying gas to dry plastic granules, but also facilitates the stirring and lifting of plastic granules to make the plastic granules contact with the drying gas more evenly, and improves the drying quality of plastic granules.

[0015] Drying gas is sprayed into the feed inlet through the air inlet pipe and nozzles. Two rows of nozzles blow air in opposite directions to form an air curtain. The recycled plastic granules to be dried are then poured into the feed inlet. As the granules pass through the air curtain, they undergo initial drying. The granules then enter the drying drum. The blower pipe is connected to the hollow shaft via an adapter sleeve. The blower blows drying gas into the hollow shaft through the adapter sleeve. The drying gas is then sprayed out through the holes on the surface of the stirring column onto the surface of the plastic granules. Simultaneously, a stepper motor drives a worm gear to rotate, which in turn drives the hollow shaft through a worm wheel. The hollow shaft then drives the stirring column and the drying drum to rotate. The stirring column agitates the plastic granules, and the air outlet position of the stirring column is adjusted to ensure uniform agitation of the granules. The drying process is highly uniform. Due to the conical design of the drying drum, the plastic granules move from right to left. When the plastic granules reach the lifting plate, the lifting plate drives the plastic granules to rotate. When the plastic granules reach the top, they fall under the influence of gravity. During the fall, they come into contact with the drying gas sprayed from the stirring column, thus achieving better air blowing and drying of the plastic granules and improving the drying quality. The dried plastic granules move with the drying drum and are discharged from the outlet, completing the recycling and drying of the recycled plastic granules. This multi-stage blowing drying gas drying process facilitates the stirring and lifting of the plastic granules, making the contact between the plastic granules and the drying gas more uniform and improving the drying quality of the plastic granules. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a frontal cross-sectional view of the present invention.

[0018] Figure 3 This is a three-dimensional structural diagram of the drive seat of this utility model;

[0019] Figure 4 This is a three-dimensional perspective structural diagram of the drying drum of this utility model;

[0020] Figure 5 This is a three-dimensional structural diagram of the feed inlet of this utility model.

[0021] In the diagram: 1. Drying box; 2. Drive base; 3. Drying drum; 4. Stirring column; 5. Hollow shaft; 6. Stepper motor; 7. Worm gear; 8. Worm wheel; 9. Feed inlet; 10. Adapter frame; 11. Adapter sleeve; 12. Discharge outlet; 13. Lifting plate; 14. Air inlet pipe; 15. Nozzle. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0023] Please see Figure 1-5 This utility model provides an embodiment of a drying device for recycling recycled plastic granules, including a drying box 1 and a drive base 2. The drive base 2 is provided on one side of the drying box 1 and is fixedly connected to the drying box 1. The feed inlet 9 is provided on the other side of the drying box 1. A drying barrel 3 is provided inside the drying box 1. The drying barrel 3 is conical in design and the feed inlet 9 is connected to the drying barrel 3. A hollow shaft 5 is provided at the center of the drying barrel 3 and is fixedly connected to the drying barrel 3. The hollow shaft 5 extends through the drive base 2 to the outside of the drive base 2 and is movably connected to the drying box 1. Multiple sets of stirring columns 4 are provided at equal intervals on the surface of the hollow shaft 5 and are connected to the hollow shaft 5. Multiple sets of holes are provided at equal intervals on the surface of the stirring columns 4. Multiple sets of lifting plates 13 are provided at equal intervals on the inner wall of the drying barrel 3 on one side of the stirring columns 4 and are arc-shaped.

[0024] Multiple sets of air inlet pipes 14 are symmetrically arranged at equal intervals on the side wall of the feed inlet 9, and each air inlet pipe 14 is equipped with a nozzle 15 at its port.

[0025] An adapter frame 10 is provided on the outer wall of the drive base 2, and the adapter frame 10 is fixedly connected to the drive base 2. An adapter sleeve 11 is provided on the side wall of the adapter frame 10, and the hollow shaft 5 extends into the interior of the adapter sleeve 11 and is movably connected to the adapter sleeve 11.

[0026] A stepper motor 6 is installed on the side wall of the drive base 2. The stepper motor 6 plays the role of power drive. A worm 7 is installed at the output end of the stepper motor 6 and the worm 7 is movably connected to the drive base 2. A worm wheel 8 is provided on the surface of the hollow shaft 5 on one side of the worm 7 and the worm 7 and the worm wheel 8 mesh with each other. A discharge port 12 is provided at the bottom of the drying box 1 and the discharge port 12 is connected to the drying barrel 3.

[0027] External drying gas is connected to the air inlet pipe 14 via a pipe. The drying gas is sprayed into the feed inlet 9 through the air inlet pipe 14 and nozzles 15. Two rows of nozzles 15 blow air in opposite directions to form an air curtain. Then, the recycled plastic granules to be dried are poured into the feed inlet 9. The plastic granules are initially dried by the air curtain as they pass through the feed inlet 9. The plastic granules enter the drying drum 3 through the feed inlet 9. The blower pipe is connected to the hollow shaft 5 through the adapter sleeve 11. The blower blows drying gas into the hollow shaft 5 through the adapter sleeve 11. The drying gas is sprayed out from the holes on the surface of the stirring column 4 through the hollow shaft 5 onto the surface of the plastic granules. At the same time, the stepper motor 6 is turned on, which drives the worm gear 7 to rotate. Under the mutual meshing of the worm gear 7 and the worm wheel 8, the worm gear 7 drives the hollow shaft 5 to rotate through the worm wheel 8. The hollow shaft 5 drives the stirring column 4 and the drying drum 3 to rotate. The stirring column 4 then rotates the plastic granules. The granules are stirred, and the air outlet position of the stirring column 4 is adjusted to ensure uniform drying of the plastic granules. Because the drying drum 3 has a conical design, the plastic granules move from right to left. When the plastic granules move to the position of the lifting plate 13, the lifting plate 13 drives the plastic granules to rotate. When the plastic granules rotate to the top, they fall under the action of gravity. During the fall, they come into contact with the drying gas sprayed from the stirring column 4, thus better drying the plastic granules and improving the drying quality. The dried plastic granules move with the drying drum 3 and are discharged from the discharge port 12 to complete the recycling and drying of the recycled plastic granules. This process realizes multi-stage blowing of drying gas to dry plastic granules, which facilitates stirring and lifting of the plastic granules, making the contact between the plastic granules and the drying gas more uniform and improving the drying quality of the plastic granules.

[0028] Working principle: External drying gas is connected to the air inlet pipe 14 through a pipeline. The drying gas is sprayed into the feed inlet 9 through the air inlet pipe 14 and nozzles 15. Two rows of nozzles 15 blow air in opposite directions to form an air curtain. Then, the recycled plastic granules to be dried are poured into the feed inlet 9. The plastic granules are initially dried by the air curtain as they pass through the feed inlet 9. The plastic granules enter the interior of the drying tank 3 through the feed inlet 9. The blower pipe is connected to the hollow shaft 5 through the adapter sleeve 11. The blower blows drying gas into the hollow shaft 5 through the adapter sleeve 11. The drying gas is sprayed out from the holes on the surface of the stirring column 4 through the hollow shaft 5 onto the surface of the plastic granules. The stepper motor 6 drives the worm gear 7 to rotate. The worm gear 7 drives the hollow shaft 5 to rotate through the worm wheel 8. The hollow shaft 5 then drives the worm gear 7 to rotate. The stirring column 4 and the drying drum 3 rotate. The stirring column 4 stirs the plastic granules and adjusts the air outlet position of the stirring column 4 to dry the plastic granules evenly. Because the drying drum 3 is conical, the plastic granules move from right to left. When the plastic granules move to the position of the lifting plate 13, the lifting plate 13 drives the plastic granules to rotate. When the plastic granules rotate to the top, they fall under the action of gravity. During the fall, they come into contact with the drying gas sprayed from the stirring column 4, thereby better drying the plastic granules and improving the drying quality. The dried plastic granules move with the drying drum 3 and are discharged from the discharge port 12 to complete the recycling and drying of recycled plastic granules.

Claims

1. A drying device for recycling recycled plastic pellets, comprising a drying chamber (1) and a drive base (2), characterized in that: A drive seat (2) is provided on one side of the drying box (1), and the drive seat (2) is fixedly connected to the drying box (1). A feed inlet (9) is provided on the other side of the drying box (1). A drying barrel (3) is provided inside the drying box (1), and the drying barrel (3) is conical in design. The feed inlet (9) is connected to the drying barrel (3). A hollow shaft (5) is provided at the center of the drying barrel (3), and the hollow shaft (5) is fixedly connected to the drying barrel (3). The hollow shaft (5) extends through the drive seat (2) to the outside of the drive seat (2). The hollow shaft (5) is movably connected to the drying box (1). The surface of the hollow shaft (5) is provided with multiple sets of stirring columns (4) at equal intervals, and the stirring columns (4) are connected to the hollow shaft (5). The surface of the stirring columns (4) is provided with multiple sets of holes at equal intervals. The inner wall of the drying barrel (3) on one side of the stirring column (4) is provided with multiple sets of lifting plates (13) at equal intervals, and the lifting plates (13) are arc-shaped.

2. The drying device for recycling recycled plastic pellets according to claim 1, characterized in that: The feed inlet (9) has multiple sets of air inlet pipes (14) symmetrically arranged at equal intervals on its side wall, and each air inlet pipe (14) has a nozzle (15) at its port.

3. The drying device for recycling recycled plastic pellets according to claim 1, characterized in that: An adapter (10) is provided on the outer wall of the drive seat (2), and the adapter (10) is fixedly connected to the drive seat (2).

4. A drying device for recycling recycled plastic pellets according to claim 3, characterized in that: The adapter frame (10) has an adapter sleeve (11) on its side wall, and the hollow shaft (5) extends into the interior of the adapter sleeve (11) and is movably connected to the adapter sleeve (11).

5. A drying device for recycling recycled plastic pellets according to claim 1, characterized in that: A stepper motor (6) is provided on the side wall of the drive seat (2), and a worm gear (7) is installed at the output end of the stepper motor (6), and the worm gear (7) is movably connected to the drive seat (2).

6. A drying device for recycling recycled plastic pellets according to claim 5, characterized in that: A worm wheel (8) is provided on the surface of the hollow shaft (5) on one side of the worm (7), and the worm (7) and the worm wheel (8) mesh with each other.

7. A drying device for recycling recycled plastic pellets according to claim 1, characterized in that: The bottom of the drying box (1) is provided with a discharge port (12), and the discharge port (12) is connected to the drying barrel (3).

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