A mixed drying device for plastic particle processing

Abstract

A kind of mixed drying device for plastic particle processing, including cylinder, several support legs are fixedly installed at the bottom of cylinder, feeding port and discharge port are sequentially set in the top and bottom of cylinder, annular cavity is set on the side wall of cylinder, the output end of heater is communicated and installed on the outer periphery of annular cavity, the output end of air blower is communicated and installed on the input end of heater, heater and air blower are fixedly installed on cylinder respectively, the inner periphery of annular cavity is communicated with the inside of cylinder by several through holes, coaxial motor is fixedly installed on cylinder.The utility model has the advantages of simple structure, ingenious thinking, cooperation of helical blade and standpipe can lift the material at the bottom of cylinder upwards and then throw downwards, realize the axial mixing of plastic particles in cylinder, the hot air blown by the through hole of vertical distribution in the inner periphery of cylinder uniformly dries plastic particles during the process of throwing downwards, can satisfy market demand, and is suitable for promotion.

Description

Technical Field

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

[0002] In the production of plastic products, it is often necessary to uniformly mix different types or colors of masterbatch, color masterbatch, additives and other plastic particles, and remove the moisture adsorbed on their surface to meet the requirements of subsequent extrusion or injection molding processes. Therefore, a mixing and drying device for plastic particle processing is needed to mix and dry the plastic particles. The patent with authorization announcement number CN216423109U: "A mixing and drying device for plastic particle processing" has a hot air blower located at the bottom of the chamber. However, the plastic particles in this device can only be mixed in a circumferential direction and cannot be mixed vertically. That is, the plastic particles at the bottom of the chamber are easy to dry, while the plastic particles at the top of the chamber are not easy to dry, resulting in uneven drying of the plastic particles. Therefore, we designed a mixing and drying device for plastic particle processing that can achieve uniform drying. Utility Model Content

[0003] This invention provides a mixing and drying device for processing plastic granules, which addresses the deficiencies in the prior art.

[0004] This utility model is achieved through the following technical solution:

[0005] A mixing and drying device for processing plastic granules includes a cylinder with several support legs fixedly installed at the bottom. An inlet and an outlet are sequentially opened at the top and bottom of the cylinder. An annular cavity is formed on the side wall of the cylinder. The outer periphery of the annular cavity is connected to the output end of a heater, and the input end of the heater is connected to the output end of a blower. The heater and the blower are respectively fixedly installed on the cylinder. The inner periphery of the annular cavity communicates with the interior of the cylinder through several through holes. A coaxial motor is fixedly installed on the cylinder. The output shaft of the motor extends into the cylinder and is fixedly installed with coaxial spiral blades. Coaxial vertical pipes are slidably installed on the outer periphery of the spiral blades. The vertical pipes are fixedly installed on the cylinder through several connecting rods. An exhaust port is opened at the top of the cylinder.

[0006] As described above, in a mixing and drying device for processing plastic granules, a coaxial annular spreading disc is rotatably mounted on the outer periphery of the upper end of the vertical pipe, and the spreading disc is fixedly connected to the rotating shaft of the spiral blades via an L-shaped rod.

[0007] As described above, a mixing and drying apparatus for processing plastic granules has a funnel connected to the feed inlet.

[0008] As described above, in a mixing and drying apparatus for processing plastic granules, a discharge pipe is connected to the discharge port, and a butterfly valve is connected to the discharge pipe.

[0009] As described above, in a mixing and drying apparatus for processing plastic granules, the bottom of the inner wall of the cylinder is an inclined surface that slopes towards the discharge port.

[0010] The advantages of this utility model are: the utility model has a simple structure and ingenious design. Through the cooperation of spiral blades and vertical pipes, the material at the bottom of the cylinder can be lifted upward and then thrown downward, realizing the axial mixing of plastic particles in the cylinder. During the downward throwing of plastic particles, the hot air blown out by the vertically distributed through holes on the inner periphery of the cylinder dries the plastic particles evenly, which can meet market demand and is suitable for promotion. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of 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 based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 yes Figure 1 A cross-sectional view along line AA.

[0013] Reference numerals: 1. Cylinder, 2. Support leg, 3. Inlet, 4. Outlet, 5. Annular cavity, 6. Heater, 7. Blower, 8. Through hole, 9. Motor, 10. Spiral blade, 11. Vertical pipe, 12. Connecting rod, 13. Exhaust port, 20. Spreading disc, 21. L-shaped rod, 30. Funnel, 40. Discharge pipe, 41. Butterfly valve. Detailed Implementation

[0014] 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 embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0015] A mixing and drying apparatus for processing plastic granules, such as Figure 1 , 2As shown, the device includes a cylinder 1, with several support legs 2 fixedly installed at the bottom of the cylinder 1. A feed inlet 3 and a discharge outlet 4 are sequentially opened at the top and bottom of the cylinder 1. An annular cavity 5 is opened on the side wall of the cylinder 1. The outer periphery of the annular cavity 5 is connected to the output end of a heater 6, and the input end of the heater 6 is connected to the output end of a blower 7. The heater 6 and the blower 7 are respectively fixedly installed on the cylinder 1. The inner periphery of the annular cavity 5 is connected to the interior of the cylinder 1 through several through holes 8. A coaxial motor 9 is fixedly installed on the cylinder 1. The output shaft of the motor 9 extends into the cylinder 1 and is fixedly installed with a coaxial spiral blade 10. The outer periphery of the output shaft of the motor 9 is fixedly connected to the inner ring of a coaxial bearing. The outer ring of the bearing is fixedly connected to the inner periphery of a pre-drilled hole on the cylinder 1. A coaxial vertical tube 11 is slidably installed on the outer periphery of the spiral blade 10. The vertical tube 11 is fixedly installed on the cylinder 1 through several connecting rods 12. An exhaust port 13 is opened at the top of the cylinder 1. This utility model has a simple structure and ingenious design. Through the cooperation of the spiral blades 10 and the vertical pipe 11, the material at the bottom of the cylinder 1 can be lifted upward and then thrown downward, realizing the axial mixing of plastic particles inside the cylinder 1. During the downward throwing of plastic particles, the hot air blown out by the vertically distributed through holes 8 on the inner circumference of the cylinder 1 dries the plastic particles evenly, which can meet market demand and is suitable for promotion. When using this invention, plastic granules are poured into the cylinder 1 through the feed inlet 3. The motor 9 is started, and the output shaft of the motor 9 drives the spiral blades 10 to rotate. The rotating spiral blades 10 and the vertical pipe 11 form a material elevator, which lifts the plastic granules at the bottom of the cylinder 1 upward along the vertical pipe 11 and finally discharges them from the upper end of the vertical pipe 11. Under the action of gravity, the plastic granules discharged from the upper end of the vertical pipe 11 are then thrown downward. During this process, the air from the blower 7 is heated by the heater 6 and enters the annular cavity 5. Then, hot air is blown into the cylinder 1 through the through hole 8. The hot air dries the plastic granules that are falling downward. Then, the hot air moves upward and is discharged from the cylinder 1 through the air outlet 13. The mixed and dried plastic granules are discharged from the cylinder 1 through the discharge port 4.

[0016] Specifically, as shown in the figure, in this embodiment, a coaxial annular spreading disc 20 is rotatably mounted on the outer circumference of the upper end of the vertical pipe 11. The inner circumference of the spreading disc 20 is higher than the outer circumference. The outer ring of a coaxial bearing is fixedly connected to the inner circumference of the spreading disc 20, and the inner ring of the bearing is fixedly connected to the outer circumference of the vertical pipe 11. The spreading disc 20 is fixedly connected to the rotating shaft of the spiral blade 10 via an L-shaped rod 21. When the lifted plastic granules are thrown out from the top of the vertical pipe 11, they fall onto the high-speed rotating spreading disc 20 and are mechanically spread into a uniform material curtain, filling the entire space of the cylinder 1. During the falling process of the plastic granules, strong convection and diffusion are achieved, increasing the uniformity of mixing.

[0017] Specifically, as shown in the figure, a funnel 30 is connected to the feed inlet 3 in this embodiment. The inner diameter of the upper end of the funnel 30 is larger than the diameter of the feed inlet 3, making it more convenient to feed plastic granules into the cylinder 1.

[0018] Furthermore, as shown in the figure, in this embodiment, a discharge pipe 40 is connected to the discharge port 4, and a butterfly valve 41 is connected to the discharge pipe 40. The discharge of plastic particles in the cylinder 1 can be controlled by the butterfly valve 41. When the plastic particles in the cylinder 1 are evenly mixed, the butterfly valve 41 is opened, and the plastic particles are discharged through the discharge pipe 40. When it is not necessary to discharge plastic particles, the butterfly valve 41 is closed.

[0019] Furthermore, as shown in the figure, the bottom of the inner wall of the cylinder 1 in this embodiment is an inclined surface that slopes towards the discharge port 4. The inclination of the bottom of the inner wall of the cylinder 1 towards the discharge port 4 facilitates the concentration of plastic particles, thereby making it easier for them to be lifted upwards by the spiral blades 10 or to be discharged through the discharge port 4.

[0020] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not 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 do 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 mixing and drying device for processing plastic granules, comprising a cylinder (1), several support legs (2) fixedly installed at the bottom of the cylinder (1), and an inlet (3) and an outlet (4) sequentially opened at the top and bottom of the cylinder (1), characterized in that: An annular cavity (5) is opened on the side wall of the cylinder (1). The outer periphery of the annular cavity (5) is connected to the output end of the heater (6). The input end of the heater (6) is connected to the output end of the blower (7). The heater (6) and the blower (7) are respectively fixedly installed on the cylinder (1). The inner periphery of the annular cavity (5) is connected to the inside of the cylinder (1) through several through holes (8). A coaxial motor (9) is fixedly installed on the cylinder (1). The output shaft of the motor (9) extends into the cylinder (1) and a coaxial spiral blade (10) is fixedly installed. A coaxial vertical pipe (11) is slidably installed on the outer periphery of the spiral blade (10). The vertical pipe (11) is fixedly installed on the cylinder (1) through several connecting rods (12). An exhaust port (13) is opened at the top of the cylinder (1).

2. The mixing and drying apparatus for processing plastic granules according to claim 1, characterized in that: A coaxial annular spreading disc (20) is rotatably mounted on the outer periphery of the upper end of the vertical tube (11). The spreading disc (20) is fixedly connected to the rotating shaft of the spiral blade (10) through an L-shaped rod (21).

3. The mixing and drying apparatus for processing plastic granules according to claim 1, characterized in that: The feed inlet (3) is connected to a funnel (30).

4. The mixing and drying apparatus for processing plastic granules according to claim 1, characterized in that: The discharge port (4) is connected to a discharge pipe (40), and the discharge pipe (40) is connected to a butterfly valve (41).

5. The mixing and drying apparatus for processing plastic granules according to claim 1, characterized in that: The bottom of the inner wall of the cylinder (1) is an inclined surface that slopes toward the discharge port (4).

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