A dryer for plastic particle processing

Abstract

This utility model relates to the field of plastic particle processing technology and discloses a dryer for processing plastic particles. The dryer includes a drying drum, a drum lid, and a hot air blower. The drum lid is installed at the top of the drying drum. The aforementioned flow mechanism drives the drum to rotate during the drying process, preventing hot air from passing through the drum from the same position to dry the plastic particles. Under the action of the guide ring, the plastic particles above the drum flow downwards in small quantities along the inclined surface of the hopper, contacting the hot air entering from below the drum. The rotation of the drum ensures that the downward-flowing plastic particles fully contact the hot air for drying. Interacting with the screw conveyor, the plastic particles in the drum circulate up and down along the inclined surface of the hopper during the drying process, ensuring the uniformity of the plastic particles during drying and improving the drying effect.

Description

Technical Field

[0001] This utility model relates to the field of plastic particle processing technology, and in particular to a dryer for processing plastic particles. Background Technology

[0002] In the production and processing of plastic particles, the particles need to be dried first to remove moisture and reduce humidity, thereby improving the quality of the plastic particles.

[0003] Currently, the existing equipment used for drying plastic particles includes horizontal dryers and vertical dryers. Horizontal dryers are usually used for drying large batches of plastic particles, while vertical dryers are used for drying small batches of plastic particles.

[0004] When using a vertical dryer to dry plastic particles, hot air enters the cylinder from the bottom to dry the particles. However, the plastic particles tend to accumulate inside the cylinder during drying. During the drying process, particles closer to the hot air source receive more heat than those farther away, resulting in uneven drying and affecting the drying effect. Utility Model Content

[0005] Therefore, it is necessary to provide a dryer for processing plastic particles to address the problem that the particles closer to the hot air source receive more heat and the particles farther away receive less heat during the drying process of plastic particles in a vertical dryer. This results in uneven drying and affects the drying effect of the plastic particles.

[0006] Includes: a drying drum, a drum lid, and a hot air blower. The drum lid is installed on the top of the drying drum, and a hot air pipe is installed on the lower surface of the drying drum. The end of the hot air pipe away from the drying drum is connected to the air outlet pipe of the hot air blower. The flow mechanism includes a drive assembly and a material barrel rotatably connected to the inner wall of the drying barrel. The lower end of the surface of the material barrel is inclined, and multiple annularly distributed openings are provided at the lower end of the surface of the material barrel. A circular tube is fixedly connected to the bottom end of the material barrel, and a feeding hopper is slidably connected to the lower end of the inner wall of the material barrel. A screw conveyor is installed at the bottom end of the barrel cover, and the bottom end of the screw conveyor extends into the circular tube. A guide ring is fixedly connected to the lower end of the surface of the screw conveyor housing.

[0007] In one embodiment, the drive assembly includes a first motor fixedly connected to the upper end of the inner wall of the drying drum. A gear is fixedly connected to the output shaft of the first motor, and a gear ring is fixedly connected to the upper surface of the drum. The gear meshes with the gear ring. This facilitates rotation of the drum during the drying process, preventing hot air from passing through the drum from the same position to dry the plastic particles.

[0008] In one embodiment, a ring is fixedly connected to the lower end of the inner wall of the drying drum, and multiple push blocks are fixedly connected to the top of the ring. A sphere is fixedly connected to the surface of the feeding hopper. This facilitates the repeated up-and-down movement of the feeding hopper during rotation, causing vibration and resulting in continuous positional changes in the plastic particles sliding downwards along the inclined surface of the feeding hopper. This allows the falling plastic particles to better contact the hot air.

[0009] In one embodiment, a limiting rod is fixedly connected to the lower end of the inner wall of the hopper, and the surface of the limiting rod is slidably connected to the inner wall of the hopper. This facilitates limiting the vertical movement of the hopper and ensures that the hopper rotates synchronously when the hopper rotates.

[0010] In one embodiment, a plurality of levers are fixedly connected to the upper surface of the screw conveyor housing, and the levers are generally L-shaped. This facilitates the levers to simultaneously move the plastic particles inside the hopper during rotation, creating gaps between the plastic particles and allowing the hot air to better cover the plastic particles.

[0011] In one embodiment, the surface of the guide ring is inclined, with the lower end of the guide ring positioned above the higher end of the hopper. This facilitates better discharge of plastic particles above the guide ring.

[0012] In one embodiment, the lower end of the sphere's surface is aligned with the top end of the ring, and the overall shape of the pusher is half-spherical. This ensures that the multiple pushers effectively propel the sphere during its rotation.

[0013] In one embodiment, a round rod is fixedly connected to the surface of the guide ring, and the round rod is inclined. This facilitates the movement of plastic particles located at the lower end of the guide ring during the rotation of the hopper, preventing plastic particles from clogging between the guide ring and the hopper.

[0014] Beneficial effects: The aforementioned flow mechanism, by driving the material hopper to rotate during the drying process, avoids hot air from the same position passing through the hopper to dry the plastic particles. During the drying process, under the action of the guide ring, the plastic particles above the hopper flow downwards in small quantities along the inclined surface of the hopper, contacting the hot air entering from below the hopper. The rotation of the hopper facilitates sufficient contact between the downward-flowing plastic particles and the hot air for drying. Interacting with the screw conveyor, the plastic particles in the hopper circulate up and down along the inclined surface of the hopper during the drying process, ensuring sufficient contact between the plastic particles and the hot air entering from below the hopper, thus guaranteeing the uniformity of the plastic particles during drying and improving the drying effect. The action of the spheres and multiple pushers facilitates the repeated up and down movement of the hopper during rotation, causing vibration and continuous positional changes in the plastic particles sliding downwards along the inclined surface of the hopper, resulting in better contact between the surface of the falling plastic particles and the hot air. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a cross-sectional view of the drying drum of this utility model.

[0018] Figure 3 This is a schematic diagram of the flow mechanism structure of this utility model.

[0019] Figure 4 This is a schematic diagram of the guide ring structure of this utility model.

[0020] Figure 5 This is an exploded view of the hopper and bucket of this utility model.

[0021] Reference numerals: 100, drying drum; 200, drum lid; 300, hot air pipe; 400, hot air blower; 500, flow mechanism; 510, material drum; 511, round pipe; 512, opening; 513, limit rod; 520, hopper; 521, sphere; 530, screw conveyor; 540, lever; 550, guide ring; 551, round rod; 560, drive assembly; 561, first motor; 562, gear; 563, gear ring; 570, circular ring; 571, push block. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0023] The following is combined with Figures 1-5 This invention describes a dryer for processing plastic particles.

[0024] In one embodiment, a dryer for processing plastic particles includes: a drying drum 100, a drum cover 200, and a hot air blower 400. The drum cover 200 is installed on the top of the drying drum 100, and a hot air pipe 300 is installed on the lower end of the surface of the drying drum 100. The end of the hot air pipe 300 away from the drying drum 100 is installed with the air outlet pipe of the hot air blower 400. The flow mechanism 500 includes a drive assembly 560 and a material barrel 510 rotatably connected to the inner wall of the drying barrel 100. The lower end of the surface of the material barrel 510 is inclined, and multiple annularly distributed openings 512 are provided at the lower end of the surface of the material barrel 510. A circular tube 511 is fixedly connected to the bottom end of the material barrel 510. A feeding hopper 520 is slidably connected to the lower end of the inner wall of the material barrel 510. A screw conveyor 530 is installed at the bottom end of the barrel cover 200. The bottom end of the screw conveyor 530 extends into the circular tube 511. A guide ring 550 is fixedly connected to the lower end of the surface of the screw conveyor 530 housing.

[0025] In this embodiment, the screw conveyor 530 includes a housing, a screw rod, and a drive motor. The drive motor is installed on the top of the barrel cover 200. The screw rod is rotatably connected inside the housing. The top of the screw rod is fixedly connected to the output shaft of the drive motor. A discharge port is provided on the upper surface of the housing. When the drive motor is started by the controller, the drive motor drives the screw rod to rotate, thereby conveying the plastic particles in the round tube 511 upward and discharging them through the discharge port.

[0026] The top of the lid 200 is equipped with a feed pipe and an exhaust pipe. The top of the feed pipe is fitted with a cover plate. By opening the cover plate, plastic particles can be poured into the material bucket 510 through the feed pipe. The exhaust pipe is used to discharge drying moisture.

[0027] The surfaces of the material bucket 510, the feeding hopper 520, and the guide ring 550 are all provided with mesh holes, through which hot air enters the material bucket 510 and the feeding hopper 520.

[0028] It should be noted that a material plate is slidably connected to the lower end of the inner wall of the drying barrel 100, and a discharge pipe is installed at the bottom of the drying barrel 100. The bottom end of the round tube 511 is attached to the top end of the material plate. During the drying operation, the material plate seals the bottom end of the round tube 511. After drying, the material plate is pulled out to release the seal on the round tube 511. At this time, the dried plastic particles will be discharged through the round tube 511 and the discharge pipe.

[0029] like Figure 2 , Figure 3 and Figure 4 As shown, the drive assembly 560 includes a first motor 561 fixedly connected to the upper end of the inner wall of the drying barrel 100. A gear 562 is fixedly connected to the output shaft of the first motor 561. A gear ring 563 is fixedly connected to the upper end of the surface of the material barrel 510. The gear 562 and the gear ring 563 are meshed together.

[0030] In this embodiment, the first motor 561 is started by the controller, and the output shaft of the first motor 561 drives the gear 562 to rotate, thereby driving the material bucket 510 to rotate synchronously through the gear ring 563.

[0031] like Figure 3 As shown, a ring 570 is fixedly connected to the lower end of the inner wall of the drying drum 100, and a plurality of push blocks 571 are fixedly connected to the top end of the ring 570. A ball 521 is fixedly connected to the surface of the feeding hopper 520. The lower end of the surface of the ball 521 is in contact with the top end of the ring 570, and the overall shape of the push block 571 is half a sphere.

[0032] In this embodiment, when the hopper 520 is driven to rotate, the hopper 520 will drive the ball 521 to rotate synchronously. The rotation path of the ball 521 coincides with the distribution path of the multiple push blocks 571. Therefore, the ball 521 will contact the push blocks 571 during rotation. When the ball 521 contacts the push blocks 571, the arc surface of the push blocks 571 will squeeze the ball 521 to move upward, thereby driving the hopper 520 to move upward synchronously. When the ball 521 continues to rotate and releases contact with the push blocks 571, the hopper 520 loses its upward force and, under its own weight, drives the ball 521 to move downward and contact the top of the ring 570 again. Therefore, during rotation, the hopper 520 will continuously move up and down reciprocally under the action of the ball 521 and the multiple push blocks 571, thereby causing vibration.

[0033] like Figure 5 As shown, a limiting rod 513 is fixedly connected to the lower end of the inner wall of the material barrel 510, and the surface of the limiting rod 513 is slidably connected to the inner wall of the feeding hopper 520.

[0034] In this embodiment, the material bucket 510 rotates synchronously with the feed hopper 520 via the limit rod 513 during rotation.

[0035] like Figure 4 As shown, multiple levers 540 are fixedly connected to the upper surface of the screw conveyor 530 housing, and the overall shape of the levers 540 is "L".

[0036] In this embodiment, there are four levers 540. When the material barrel 510 drives the plastic particles to rotate, the levers 540 will move the plastic particles in the material barrel 510, causing gaps to appear between the plastic particles.

[0037] like Figure 3 and Figure 4 As shown, the surface of the guide ring 550 is inclined, and the lower end of the guide ring 550 is located above the higher end of the hopper 520. A round rod 551 is fixedly connected to the surface of the guide ring 550, and the round rod 551 is inclined.

[0038] In this embodiment, there is a certain gap between the lower end of the guide ring 550 and the inner wall of the material barrel 510. Plastic particles enter the feed hopper 520 through the gap. The round rod 551 is located above the gap. During the rotation of the material barrel 510, the round rod 551 will push the plastic particles above the gap, thereby avoiding material blockage.

[0039] Working principle: When drying plastic particles, the plastic particles are poured into the material hopper 510 through the feed pipe, and the hot air fan 400 is started by the controller, so that hot air is poured into the drying hopper 100 through the hot air pipe 300, and enters the discharge hopper 520 and the material hopper 510 to dry the plastic particles. The dried moisture is discharged through the exhaust pipe at the top of the hopper lid 200. During the drying process, the screw conveyor 530 is started by the controller to transport the plastic particles entering the circular pipe 511 upwards and fall back onto the plastic particles in the material hopper 510. During this process, the guide ring 55... The plastic particles above the guide ring 550 will flow down the slope of the feed hopper 520 under the guidance of the inclined surface and re-enter the circular tube 511. They will then be continuously discharged by the screw conveyor 530. This allows the plastic particles in the feed hopper 510 to circulate up and down through the inclined surface of the feed hopper 520 and come into contact with the hot air entering from below the drying drum 100. At the same time, the controller drives the drive assembly 560 to operate, causing the feed hopper 510 to rotate, which in turn drives the dried plastic particles and the feed hopper 520 to rotate. This ensures that the plastic particles circulating through the feed hopper 520 come into uniform contact with the hot air.

[0040] It should be noted that the hot air blower, motor, etc. mentioned above are all components with relatively mature existing technology. The specific model can be selected according to actual needs. At the same time, the hot air blower and motor can be powered by the built-in power supply or by the mains power. The specific power supply method should be selected according to the situation, which will not be elaborated here.

[0041] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A dryer for processing plastic particles, characterized in that, include: The equipment includes a drying drum (100), a drum lid (200), and a hot air blower (400). The drum lid (200) is installed on the top of the drying drum (100). A hot air pipe (300) is installed on the lower surface of the drying drum (100). The end of the hot air pipe (300) away from the drying drum (100) is connected to the air outlet pipe of the hot air blower (400). A flow mechanism (500) includes a drive assembly (560) and a material container (510) rotatably connected to the inner wall of the drying drum (100). The lower end of the surface of the material bucket (510) is inclined, and the lower end of the surface of the material bucket (510) is provided with multiple annularly distributed openings (512). The bottom end of the material bucket (510) is fixedly connected to a round tube (511). The lower end of the inner wall of the material bucket (510) is slidably connected to a feeding hopper (520). The bottom end of the bucket cover (200) is equipped with a screw conveyor (530). The bottom end of the screw conveyor (530) penetrates into the round tube (511). The lower end of the surface of the screw conveyor (530) housing is fixedly connected to a guide ring (550).

2. The dryer for processing plastic particles according to claim 1, characterized in that, The drive assembly (560) includes a first motor (561) fixedly connected to the upper end of the inner wall of the drying barrel (100), a gear (562) fixedly connected to the output shaft of the first motor (561), and a gear ring (563) fixedly connected to the upper end of the surface of the material barrel (510), and the gear (562) meshing with the gear ring (563).

3. The dryer for processing plastic particles according to claim 1, characterized in that, A ring (570) is fixedly connected to the lower end of the inner wall of the drying barrel (100), and a plurality of push blocks (571) are fixedly connected to the top end of the ring (570). A ball (521) is fixedly connected to the surface of the feeding hopper (520).

4. The dryer for processing plastic particles according to claim 1, characterized in that, A limiting rod (513) is fixedly connected to the lower end of the inner wall of the material bucket (510), and the surface of the limiting rod (513) is slidably connected to the inner wall of the feeding hopper (520).

5. The dryer for processing plastic particles according to claim 1, characterized in that, Multiple levers (540) are fixedly connected to the upper surface of the casing of the screw conveyor (530), and the overall shape of the levers (540) is "L".

6. The dryer for processing plastic particles according to claim 1, characterized in that, The surface of the guide ring (550) is inclined, and the lower end of the guide ring (550) is located above the higher end of the hopper (520).

7. The dryer for processing plastic particles according to claim 3, characterized in that, The lower end of the surface of the sphere (521) is attached to the top of the ring (570), and the overall shape of the push block (571) is a half-sphere.

8. The dryer for processing plastic particles according to claim 1, characterized in that, A round rod (551) is fixedly connected to the surface of the guide ring (550), and the round rod (551) is inclined.

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