Plastic particle drying device
By introducing a stirring, heating, and turning mechanism into the plastic granule drying device, combined with hot air drying, the problem of poor drying effect of the lower layer of granules is solved, and a highly efficient and uniform plastic granule drying effect is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2026-03-24
AI Technical Summary
Existing plastic pellet drying methods are ineffective at drying the lower layers of pellets that are piled together, resulting in low drying efficiency.
The system employs a stirring and heating mechanism and a turning mechanism in conjunction with a hot air drying mechanism. By rotating and stirring, the contact area between the hot air and the plastic granules is increased. An electric heating grid is used to heat the internal granules, ensuring uniform drying.
This improves the drying efficiency and uniformity of plastic granules, avoids the problem of poor drying effect of granules at the bottom, and ensures efficient drying of plastic granules.
Smart Images

Figure CN224034215U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of plastic particle drying, and particularly relates to a plastic particle drying device. BACKGROUND
[0002] Plastic particle drying is an important step in the plastic processing process, mainly to remove moisture in the plastic particles, to prevent product quality problems caused by the presence of moisture in the subsequent processing process, such as bubbles, silver lines or degradation phenomena.
[0003] The existing plastic particle drying method is usually hot air drying, but when hot air drying, only the surface layer of the plastic particles can be dried, and the drying effect of the lower layer of the plastic particles accumulated together is poor, although the existing technology can stir during particle drying, but the drying efficiency is still low. UTILITY MODEL CONTENT
[0004] The utility model discloses a plastic particle drying device with simple structure and reasonable design to solve the above problems.
[0005] The utility model discloses a plastic particle drying device with simple structure and reasonable design to solve the above problems.
[0006] A plastic particle drying device, comprising a drying box, a stirring and heating mechanism is arranged on the drying box, a turnover mechanism is arranged at the bottom of the stirring and heating mechanism, a hot air drying mechanism is arranged at the top of the drying box, and a feeding pipe is fixedly installed at the top of the right side of the drying box.
[0007] The stirring and heating mechanism comprises a servo motor fixedly connected to the center of the top of the drying box, a connecting shaft is fixedly connected to the output end of the servo motor, a main shaft is fixedly connected to the bottom of the connecting shaft and rotatably penetrates the center of the top of the drying box, stirring rods are uniformly installed on the outer part of the main shaft in a symmetrical manner, two stirring rods are arranged in each group, a first connecting rod is fixedly connected between the two stirring rods in the same group, an electric heating net is fixedly connected between the two stirring rods and the first connecting rod, the electric heating net is electrically connected to the joint column through a connecting line, the joint column penetrates the top of the main shaft, an electric connection ring is attached to the top of the joint column through the rolling of a steel ball, the electric connection ring is fixedly installed on the center of the top surface of the drying box, and the electric connection ring is connected to the power supply through a wire.
[0008] Preferably, the turnover mechanism comprises a fixed shaft fixedly connected to the center of the bottom of the main shaft, a plurality of second connecting rods are fixedly connected to the outer part of the fixed shaft in a symmetrical manner, the second connecting rods are arranged in groups of two, a linkage rod is fixedly connected between the two second connecting rods in the same group, a turnover hopper for turning over the plastic particles at the bottom to the top is fixedly installed on the side of the linkage rod away from the second connecting rod, a bearing seat is rotatably connected to the bottom of the fixed shaft, and the bearing seat is fixedly installed on the center of the bottom surface of the drying box.
[0009] Preferably, the hot air drying mechanism comprises two fixed plates fixedly connected to the rear side of the drying box outside in a symmetrical manner, a hot air blower fixedly installed on the rear side of the two fixed plates, and a connecting hose fixedly installed on the output end of the hot air blower.
[0010] Preferably, four fixed blocks are fixedly installed on the top surface of the drying box inside in a symmetrical manner, two fixed blocks in each group, a communication pipe fixedly installed on the bottom of the two fixed blocks in each group, and a plurality of annular pipes fixedly installed on the bottom of the two communication pipes in a concentric manner.
[0011] Preferably, a plurality of nozzles are fixedly installed on the bottom of each annular pipe, one of the communication pipes is in communication with the connecting hose, and the communication pipes are in communication with the annular pipes.
[0012] Preferably, a discharge pipe is fixedly installed on one side of the bottom of the drying box, a valve is arranged on the discharge pipe, a plurality of supporting legs are fixedly installed on the bottom of the drying box, a feeding pipe is fixedly installed on the right side of the top of the drying box, and the feeding pipe is in communication with the inside of the drying box.
[0013] The hot air drying mechanism adopts a hot air drying mode to blow and dry the plastic particles, the stirring and heating mechanism is used to rotate and stir the plastic particles, the contact area of the hot air and the plastic particles is increased, the drying efficiency is improved, in the process of rotating and stirring, the electric heating net directly contacts the plastic particles, the stacked plastic particles are heated and dried from the inside, the drying effect is improved, the bottom plastic particles can be turned to the upper layer by the turning mechanism, the problem of poor drying effect of the bottom particles is avoided, and uniform drying of the plastic particles is ensured. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 is the overall structure of the utility model;
[0015] Figure 2 is the overall structure of the utility model;
[0016] Figure 3 is the hot air drying mechanism of the utility model;
[0017] Figure 4 is the stirring and heating mechanism of the utility model.
[0018] In the figure: 1, drying box; 2, wire; 3, hot air drying mechanism; 31, connecting hose; 32, hot air blower; 33, fixed plate; 34, nozzle; 35, communication pipe; 36, fixed block; 37, annular pipe; 4, stirring heating mechanism; 41, servo motor; 42, power ring; 43, connecting shaft; 44, joint column; 45, stirring rod; 46, No. 1 connecting rod; 47, electric heating net; 48, main shaft; 5, feeding pipe; 6, supporting leg; 7, discharge pipe; 8, valve; 9, turnover mechanism; 91, turnover hopper; 92, No. 2 connecting rod; 93, fixed shaft; 94, linkage rod. DETAILED DESCRIPTION
[0019] The following further describes the present application in conjunction with the drawings. It is necessary to point out here that the following detailed description is only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application according to the above application content.
[0020] EMBODIMENT
[0021] Please refer to Figure 1 and Figure 2 A plastic particle drying device, comprising a drying box 1, the drying box 1 is provided with a stirring heating mechanism 4, the stirring heating mechanism 4 is provided with a turnover mechanism 9 at the bottom, and the drying box 1 is provided with a hot air drying mechanism 3 at the top, and the drying box 1 is fixedly installed with a feeding pipe 5 at the top of the right side; the drying box 1 is fixedly installed with a discharge pipe 7 at the bottom of one side, the discharge pipe 7 is provided with a valve 8, and the drying box 1 is fixedly installed with a plurality of supporting legs 6 at the bottom; the drying box 1 is fixedly installed with a feeding pipe 5 at the top of the right side, and the feeding pipe 5 is communicated with the inside of the drying box 1.
[0022] In use, the feeding pipe 5 is used for the addition of plastic particles, the stirring heating mechanism 4 is used for the rotary stirring and heating of the plastic particles, the hot air drying mechanism 3 is used for the hot air drying of the plastic particles, the discharge pipe 7 is used for the discharge of the dried plastic particles, and the valve 8 is used for opening and closing the discharge pipe 7.
[0023] Please refer to Figure 2 and Figure 4, the stirring heating mechanism 4 comprises a servo motor 41 fixedly connected to the center of the top of the drying box 1, the output end of the servo motor 41 is fixedly connected with a connecting shaft 43, the bottom of the connecting shaft 43 is rotatably penetrated through the center of the top of the drying box 1 and is fixedly connected with a main shaft 48, the outer part of the main shaft 48 is uniformly installed with stirring rods 45 which are symmetrically arranged on the upper and lower parts, the stirring rods 45 are arranged in pairs, a first connecting rod 46 is fixedly connected between the two stirring rods 45 in the same group, an electric heating net 47 is installed between the two stirring rods 45 and the first connecting rod 46, the electric heating net 47 is electrically connected with the connector column 44 through a connecting wire, the connector column 44 is fixedly penetrated through the top of the main shaft 48, the top of the connector column 44 is abutted with an electricity connection ring 42 through the rolling of a steel ball, and the electricity connection ring 42 is fixedly installed on the center of the inner top surface of the drying box 1 and is connected with the power supply through the wire 2.
[0024] In use, the servo motor 41 in the stirring heating mechanism 4 is started, the output end of the servo motor 41 drives the connecting shaft 43 and the stirring rods 45 thereon to rotate, and drives the first connecting rod 46 and the electric heating net 47 thereon to rotate at the same time, the main shaft 48 is rotated synchronously to drive the connector column 44 to rotate, the rotation of the connector column 44 and the electricity connection ring 42 is utilized to ensure that the electric heating net 47 is still powered on during the rotation and stirring, the electric heating net 47 is utilized to heat and dry the stacked plastic particles, the mesh of the electric heating net 47 is twice the size of the plastic particles, the temperature of the electric heating net 47 is adjustable, the heating temperature is lower than the melting point of the plastic particles, and the damage and melting of the plastic particles are avoided.
[0025] Please refer to Figure 2 and Figure 4 , the material turning mechanism 9 comprises a fixed shaft 93 fixedly connected to the center of the bottom of the main shaft 48, a plurality of second connecting rods 92 are fixedly connected to the outer part of the fixed shaft 93 and are symmetrically arranged on the upper and lower parts, the second connecting rods 92 are arranged in pairs, a linkage rod 94 is fixedly installed between the two second connecting rods 92 in the same group, the linkage rod 94 is fixedly installed with a material turning hopper 91 used for turning the plastic particles at the bottom to the top on the side away from the second connecting rod 92, a bearing seat is rotatably connected to the bottom of the fixed shaft 93 and is fixedly installed on the center of the inner bottom surface of the drying box 1.
[0026] In use, when the main shaft 48 is rotated, the fixed shaft 93 and the second connecting rods 92 thereon are rotated synchronously, and the linkage rod 94 and the material turning hopper 91 thereon are rotated at the same time, the material turning hopper 91 is utilized to turn the plastic particles at the bottom, the plastic particles at the bottom are turned upwards, and the problem of poor drying effect of the plastic particles at the bottom is effectively avoided.
[0027] Please refer to Figure 2 and Figure 3The hot air drying mechanism 3 comprises two fixed plates 33 fixedly connected to the rear side of the drying box 1 outside, a hot air blower 32 fixedly installed at the rear side of the two fixed plates 33, a connecting hose 31 fixedly installed at the output end of the hot air blower 32, four fixed blocks 36 fixedly installed on the top surface inside the drying box 1, two fixed blocks 36 in each group, a communication pipe 35 fixedly installed at the bottom of the two fixed blocks 36 in the same group, a plurality of annular pipes 37 concentrically arranged and fixedly installed at the bottom of the two communication pipes 35, a plurality of nozzles 34 fixedly installed at the bottom of the annular pipes 37, and the communication pipe 35 in one group is in communication with the connecting hose 31 inside, and the communication pipe 35 is in communication with the annular pipe 37 inside.
[0028] During the stirring and heating process of the stirring and heating mechanism 4, the hot air blower 32 is started, the hot air blower 32 sends hot air to the communication pipe 35 through the connecting hose 31, then to the annular pipe 37 through the communication pipe 35, and then to the nozzles 34 through the annular pipe 37, and the hot air is used for hot air drying of the plastic particles, and the stirring and heating of the stirring and heating mechanism 4 is used for cooperation, so that the contact area between the hot air and the plastic particles is increased, and the drying efficiency is improved.
[0029] It should be noted that the plastic particle drying device is used, the plastic particles to be dried are first added to the drying box 1 through the feeding pipe 5, the hot air blower 32 in the hot air drying mechanism 3 is started at this time, the hot air blower 32 is used to generate hot air to dry the plastic particles by hot air blowing, and the electric heating net 47 is started at the same time, the servo motor 41 is started at the same time, the servo motor 41 drives the connecting shaft 43 and the stirring rod 45 thereon to rotate, and drives the first connecting rod 46 and the electric heating net 47 thereon to rotate, the main shaft 48 rotates synchronously to drive the joint column 44 to rotate, the joint column 44 and the electric ring 42 are rotated to contact each other, so that the electric heating net 47 is still powered on during the rotation and stirring, the electric heating net 47 is used for heating and drying the stacked plastic particles, the contact area between the hot air and the plastic particles is increased during the rotation and stirring, the drying efficiency is improved, and the bottom plastic particles are turned to the upper layer by the turnover mechanism 9, and the drying effect is further improved.
[0030] The above-described embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as limiting the scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application.
Claims
1. A plastic granule drying device, comprising a drying chamber (1), characterized in that: The drying box (1) is equipped with a stirring and heating mechanism (4), a material turning mechanism (9) is provided at the bottom of the stirring and heating mechanism (4), and a hot air drying mechanism (3) is provided at the top of the drying box (1). A feeding pipe (5) is fixedly installed on the top right side of the drying box (1). The stirring and heating mechanism (4) includes a servo motor (41) fixedly connected to the center of the top of the drying box (1). The output end of the servo motor (41) is fixedly connected to a connecting shaft (43). The bottom of the connecting shaft (43) rotates through the center of the top of the drying box (1) and is fixedly connected to a main shaft (48). Stirring rods (45) are evenly and symmetrically installed on the outside of the main shaft (48). The stirring rods (45) are in pairs. A connecting rod (46) is fixedly connected between the two stirring rods (45) in the same group. An electric heating mesh (47) is installed between the two stirring rods (45) and the connecting rod (46). The electric heating mesh (47) is electrically connected to the connector post (44) through a connecting line. The connector post (44) is fixedly connected through the top of the main shaft (48). A contact ring (42) is rolled and attached to the top of the connector post (44) by steel balls. The contact ring (42) is fixedly installed in the center of the top surface inside the drying box (1). The top of the contact ring (42) is connected to the power supply through a wire (2).
2. The plastic granule drying device according to claim 1, characterized in that: The material turning mechanism (9) includes a fixed shaft (93) fixedly connected to the center of the bottom of the main shaft (48). Several No. 2 connecting rods (92) are fixedly connected symmetrically on the outside of the fixed shaft (93). The multiple No. 2 connecting rods (92) are in pairs. A linkage rod (94) is fixedly installed between the two No. 2 connecting rods (92) in the same group. A turning hopper (91) for turning the plastic particles at the bottom to the top is fixedly installed on the side of the linkage rod (94) away from the No. 2 connecting rod (92). A bearing seat is rotatably connected to the bottom of the fixed shaft (93). The bearing seat is fixedly installed in the center of the bottom surface inside the drying oven (1).
3. The plastic granule drying device according to claim 1, characterized in that: The hot air drying mechanism (3) includes two fixed plates (33) that are symmetrically fixedly connected to the rear side of the outside of the drying box (1). A hot air blower (32) is fixedly installed on the rear side of the two fixed plates (33). A connecting hose (31) is fixedly installed at the output end of the hot air blower (32).
4. A plastic granule drying device according to claim 3, characterized in that: The drying oven (1) has four fixed blocks (36) symmetrically fixedly installed on the top front and back. The four fixed blocks (36) are in pairs. The bottom of the two fixed blocks (36) in the same group is fixedly installed with a connecting pipe (35). The bottom of the two connecting pipes (35) is fixedly installed with several concentrically arranged annular pipes (37).
5. A plastic granule drying device according to claim 4, characterized in that: Several nozzles (34) are uniformly fixedly installed at the bottom of the annular tube (37), and one of the connecting tubes (35) is connected to the inside of the connecting hose (31). The connecting tube (35) is connected to the inside of the annular tube (37).
6. The plastic granule drying device according to claim 1, characterized in that: A discharge pipe (7) is fixedly installed on one side of the bottom of the drying box (1), and a valve (8) is provided on the discharge pipe (7). Several support legs (6) are evenly fixedly installed on the bottom of the drying box (1). A feeding pipe (5) is fixedly installed on the top right side of the drying box (1), and the feeding pipe (5) is connected to the inside of the drying box (1).