Plastic particle drying device

Abstract

The utility model discloses a plastic particle drying device, belongs to the technical field of plastic particle drying, and aims to solve the problems that hot airflow of a drum-type plastic particle drying machine in the prior art can be directly discharged from the other end after passing through the interior of the drying machine, but the discharged airflow still contains heat, and waste is generated due to direct discharge. Comprising a roller, a left limiting frame is arranged at the left end of the roller, a left supporting table is fixedly connected to the lower end of the outer side of the left limiting frame, a right limiting frame is arranged at the right end of the roller, a right supporting table is fixedly connected to the lower end of the outer side of the right limiting frame, and drying mechanisms are arranged at the inner end and the outer end of the roller. And the drying mechanism comprises an annular plate fixedly connected to the right end of the outer side of the roller, an outer cylinder is fixedly connected to the left side of the annular plate, a right side plate is fixedly connected to the right side of the roller, a round frame is fixedly connected to the right side of the right side plate, and an electric heating wire is installed on the inner side of the round frame.

Description

Technical Field

[0001] This utility model belongs to the field of plastic granule drying technology, and specifically relates to a plastic granule drying device. Background Technology

[0002] Plastic granules are one of the raw materials for plastic product processing. During the production of plastic granules, a drying device is needed to dry the extruded plastic granules. Existing drying devices for plastic granules usually use drum-type plastic granule dryers. When working, the wet material is fed into the dryer from one end, and under the action of the inner drum lifters, the material is evenly distributed and dispersed, and fully contacts the hot air flowing in parallel or counter-current, which accelerates the drying heat and mass transfer driving force. Under the action of the inclined lifters and hot air flow, the material moves to the other end and is discharged as a finished product through the star-shaped discharge valve.

[0003] In existing rotary plastic pellet dryers, the hot airflow passes through the inside of the dryer and is discharged directly from the other end. However, the discharged airflow still contains heat, and direct discharge results in waste. Utility Model Content

[0004] (1) Technical problems to be solved

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a plastic granule drying device, which aims to solve the problem that in the prior art, the hot airflow of the drum-type plastic granule dryer is directly discharged from the other end after passing through the inside of the dryer, but the discharged airflow still contains heat and direct discharge will result in waste.

[0006] (2) Technical solution

[0007] To solve the above-mentioned technical problems, this utility model provides a plastic granule drying device, including a drum. A left limiting frame is provided at the left end of the drum, and a left support platform is fixedly connected to the lower outer end of the left limiting frame. A right limiting frame is provided at the right end of the drum, and a right support platform is fixedly connected to the lower outer end of the right limiting frame. Drying mechanisms are provided at both the inner and outer ends of the drum, and the drying mechanism includes an annular plate fixedly connected to the right outer end of the drum. An outer cylinder is fixedly connected to the left side of the annular plate, a right side plate is fixedly connected to the right side of the drum, and a circular frame is fixedly connected to the right side of the right side plate. A heating wire is installed inside the circular frame, an air inlet pipe is fixedly connected to the middle position of the right end of the circular frame, a feed pipe is fixedly connected to the middle position of the left end of the outer cylinder, a discharge pipe is fixedly connected to the lower left side of the right limiting frame, and a drive unit is provided at the outer end of the outer cylinder.

[0008] Furthermore, the drive unit includes a gear ring fixedly connected to the outside of the outer cylinder, a fixed platform is provided at the middle position of the lower end of the outer cylinder, a motor is installed at the upper end of the fixed platform, a gear is fixedly connected to the left end of the output shaft of the motor, and lifting plates are fixedly connected at equal intervals on the inner side of the roller.

[0009] Furthermore, a first rotating hole is provided at the middle position of the left end of the left limiting frame, and a second rotating hole is provided at the middle position of the right end of the right limiting frame. The outer side of the left end of the outer cylinder is rotatably connected to the inner side of the left limiting frame, the outer side of the right end of the roller is rotatably connected to the inner side of the right limiting frame, the middle position of the outer side of the feed pipe is rotatably connected to the inner side of the first rotating hole, and the outer side of the air inlet pipe is rotatably connected to the inner side of the second rotating hole.

[0010] Furthermore, a through hole is provided in the middle of the interior of the right side plate, and exhaust holes are provided at equal intervals inside the annular plate.

[0011] Furthermore, the gear ring meshes with a gear.

[0012] Furthermore, the outer cylinder and the roller are inclined, with the left side higher than the right.

[0013] Furthermore, a feeding hole is provided at the lower right end of the roller.

[0014] (3) Beneficial effects

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] In this invention, hot air is introduced into the circular frame through an air inlet pipe, heated by an electric heating wire, and then enters the drum. After flowing to the leftmost end of the outer cylinder, the air flows from the left end of the outer cylinder into the space between the drum and the outer cylinder. It then continues to flow to the right along the space between the drum and the outer cylinder and finally exits through the vent holes inside the annular plate. Thus, after the hot airflow dries the plastic particles in the drum, it flows along the outer wall of the drum, making it less likely for the temperature in the drum to be lost. This improves the drying effect of the drying device and avoids heat waste.

[0017] In this invention, the output shaft of the motor rotates, causing the gear and gear ring to rotate relative to each other, thereby causing the outer cylinder to rotate. At the same time, the lifting plates on the inner side of the outer cylinder rotate, first scooping up the plastic particles at the bottom of the drum, and then sliding down from the top of the lifting plates when they reach the top. This allows the hot airflow passing through the drum to contact the surface of the plastic particles to a greater extent, enabling them to be dried faster and more quickly. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application 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 only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the drum of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure at the right limiting frame of this utility model;

[0022] Figure 4 This is a schematic diagram of the left limiting frame structure of this utility model.

[0023] The markings in the attached diagram are as follows: 1. Roller; 2. Left limiting frame; 3. Left support platform; 4. Right limiting frame; 5. Right support platform; 601. Annular plate; 602. Outer cylinder; 603. Right side plate; 604. Circular frame; 605. Heating wire; 606. Air inlet pipe; 607. Feed pipe; 608. Discharge pipe; 701. Gear ring; 702. Fixed platform; 703. Motor; 704. Gear; 705. Lifting plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] This specific embodiment is a plastic granule drying device, the structural schematic diagram of which is shown below. Figure 1 and Figure 2As shown, the device includes a roller 1, a left limiting frame 2 at the left end of the roller 1, a left support platform 3 fixedly connected to the lower outer end of the left limiting frame 2, a right limiting frame 4 at the right end of the roller 1, a right support platform 5 fixedly connected to the lower outer end of the right limiting frame 4, and drying mechanisms at both the inner and outer ends of the roller 1. The drying mechanism includes an annular plate 601 fixedly connected to the right outer end of the roller 1, and an outer cylinder 602 fixedly connected to the left side of the annular plate 601. The outer cylinder 602 is inclined to the roller 1, with the left side higher than the right side. As the plastic particles are dried by the hot airflow in the annular plate 601, they will gradually slide to the right along the inclined inner side of the roller 1. A right side plate 603 is fixedly connected to the right side of the roller 1, and a circular frame 604 is fixedly connected to the right side of the right side plate 603. An electric heating wire 605 is installed on the inner side of the circular frame 604. A through hole is opened in the middle of the inner side of the right side plate 603. Exhaust holes are opened at equal intervals inside the annular plate 601. The hot air enters the roller 1 through the inlet pipe 606 into the circular frame 604, and is heated by the electric heating wire 605. After flowing to the leftmost end of the inner side of the outer cylinder 602, it flows from the left end of the outer cylinder 602 into the space between the roller 1 and the outer cylinder 602. Then it continues to flow to the right along the space between the roller 1 and the outer cylinder 602 and finally exits through the vent hole inside the annular plate 601. Thus, after the hot airflow dries the plastic particles in the roller 1, it flows along the outer wall of the roller 1, which makes it difficult for the temperature in the roller 1 to be lost, thereby improving the drying effect of the drying device and avoiding heat waste.

[0026] Cooperate Figure 3 and Figure 4 An air inlet pipe 606 is fixedly connected to the middle position of the right end of the circular frame 604, and a feed pipe 607 is fixedly connected to the middle position of the left end of the outer cylinder 602. A first rotating hole is opened at the middle position of the left end of the left limiting frame 2, and a second rotating hole is opened at the middle position of the right end of the right limiting frame 4. The outer side of the left end of the outer cylinder 602 is rotatably connected to the inner side of the left limiting frame 2, the outer side of the right end of the roller 1 is rotatably connected to the inner side of the right limiting frame 4, the middle position of the outer side of the feed pipe 607 is rotatably connected to the inner side of the first rotating hole, and the outer side of the air inlet pipe 606 is rotatably connected to the inner side of the second rotating hole. A discharge pipe 608 is fixedly connected to the lower left side of the right limiting frame 4. A discharge hole is opened at the lower right end of the roller 1. When the roller 1 rotates and the discharge hole rotates to the position where the inner side of the right limiting frame 4 of the discharge pipe 608 is above the discharge pipe 608, the dried plastic granules inside the right end of the roller 1 will be discharged through the discharge hole into the lower discharge pipe 608 and then discharged through the discharge pipe 608.

[0027] The outer cylinder 602 has a drive unit at its outer end. The drive unit includes a gear ring 701 fixedly connected to the outer side of the outer cylinder 602. A fixed platform 702 is located at the middle of the lower end of the outer cylinder 602. A motor 703 is installed on the upper end of the fixed platform 702. A gear 704 is fixedly connected to the left end of the output shaft of the motor 703. Lifting plates 705 are fixedly connected at equal intervals on the inner side of the drum 1. The gear ring 701 meshes with the gear 704. By starting the motor 703, the output shaft rotates, causing the gear 704 and the gear ring 701 to rotate relative to each other, thereby causing the outer cylinder 602 to rotate. At the same time, during the rotation of the lifting plates 705 on the inner side of the outer cylinder 602, they first scoop up the plastic particles at the bottom of the drum 1. After rotating to the top, they slide down from the top of the lifting plates 705. This allows the hot airflow inside the drum 1 to contact the surface of the plastic particles to a greater extent, enabling them to be dried faster.

[0028] Working principle: When drying plastic granules, the motor 703 is started first to make the outer cylinder 602 and the drum 1 rotate. Then, plastic granules are fed into the inside of the drum 1 through the feed pipe 607. After the heating wire 605 is turned on, airflow is introduced into the air inlet pipe 606. The airflow entering the circular frame 604 is heated by the heating wire 605 to form hot airflow. Then, it enters the through hole inside the right side plate 603 and enters the drum 1. The plastic granules are blown from right to left and continuously scooped up by the lifting plate 705 to dry the plastic granules. The dried plastic granules finally flow into the discharge pipe 608 at the right end and are discharged downward.

[0029] All technical features in this embodiment can be freely combined according to actual needs.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A plastic particle drying apparatus comprising a drum (1), characterized in that, The left end of the roller (1) is provided with a left limiting frame (2), the outer lower end of the left limiting frame (2) is fixedly connected with a left supporting table (3), the right end of the roller (1) is provided with a right limiting frame (4), the outer lower end of the right limiting frame (4) is fixedly connected with a right supporting table (5), the inner and outer ends of the roller (1) are provided with a drying mechanism, and the drying mechanism comprises an annular plate (601) fixedly connected to the outer right end of the roller (1), the left side of the annular plate (601) is fixedly connected with an outer cylinder (602), the right side of the roller (1) is fixedly connected with a right side plate (603), the right side of the right side plate (603) is fixedly connected with a circular frame (604), the inner side of the circular frame (604) is mounted with an electric heating wire (605), the right end of the circular frame (604) is fixedly connected with an air inlet pipe (606) at the middle position, the left end of the outer cylinder (602) is fixedly connected with a feeding pipe (607) at the middle position, the lower left of the right limiting frame (4) is fixedly connected with a discharge pipe (608), and the outer end of the outer cylinder (602) is provided with a driving unit.

2. A plastic pellet drying apparatus according to claim 1, wherein The driving unit comprises a gear ring (701) fixedly connected to the outer side of the outer cylinder (602), a fixed table (702) is arranged at the middle position of the lower end of the outer cylinder (602), a motor (703) is mounted on the upper end of the fixed table (702), the output shaft left end of the motor (703) is fixedly connected with a gear (704), and the inner side of the roller (1) is fixedly connected with a scraper (705) at equal distances.

3. The plastic particle drying apparatus of claim 1, wherein, A first rotating hole is formed at the middle position of the left end of the left limiting frame (2), a second rotating hole is formed at the middle position of the right end of the right limiting frame (4), the left end of the outer cylinder (602) is rotatably connected with the inner side of the left limiting frame (2), the right end of the roller (1) is rotatably connected with the inner side of the right limiting frame (4), the outer middle position of the feeding pipe (607) is rotatably connected with the inner side of the first rotating hole, and the outer side of the air inlet pipe (606) is rotatably connected with the inner side of the second rotating hole.

4. The plastic pellet drying apparatus according to claim 1, wherein A through hole is formed at the middle position of the inner side of the right side plate (603), and exhaust holes are formed at equal distances in the inner side of the annular plate (601).

5. The plastic pellet drying apparatus according to claim 2, wherein The gear ring (701) is engaged with the gear (704).

6. The plastic pellet drying apparatus according to claim 1, wherein The outer cylinder (602) and the roller (1) are in an inclined state, and are characterized by being higher on the left and lower on the right.

7. The plastic pellet drying apparatus according to claim 1, wherein A discharging hole is formed below the right end of the roller (1).

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