Drying device for plastic particle processing

Abstract

The utility model relates to the technical field of plastic processing, in particular to a drying device for plastic particle processing, which is simple in structure, integrates a drying device and a feeding device, reduces the occupied space of the drying device, and reduces the use limitation. Comprising a drying box, a feeding pipeline is fixedly connected to the center of the drying box, the two ends of the feeding pipeline penetrate through the drying box, a conveying screw is rotationally connected into the feeding pipeline, and a discharging pipeline communicates with the side face of the end, protruding out of the drying box, of the top of the feeding pipeline and communicates with the top of the drying box; a shaft pipe is rotationally connected into the drying box, stirring blades are arranged on the outer wall of the shaft pipe, and the bottom end of the feeding pipeline communicates with a stock bin.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic processing, in particular to a drying device for processing plastic particles. Background Art

[0002] Drying is a crucial step in the production and processing of plastic pellets. Plastic pellets often contain a certain amount of moisture or other volatile substances. If these components are not effectively removed before processing, they will not only affect the quality of the final product but may also damage the processing equipment.

[0003] Currently, most plastic pellet drying systems on the market use a standalone design, meaning the drying unit and feeding device are separated. These systems typically place the drying unit's feed port at the top of the unit, with material supplied via external feeding equipment (such as an elevator or screw conveyor). While this structure can meet basic drying requirements, it presents some significant problems in practical applications:

[0004] It takes up a large space. Since the drying device and the feeding device each occupy an independent space, the entire system occupies a relatively large area, which is particularly disadvantageous for production workshops with limited space. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a drying device for processing plastic particles, which has a simple structure and integrates the drying device and the feeding device, thereby reducing the space occupied by the drying device and reducing the limitations of use.

[0006] The utility model is a drying device for processing plastic particles, comprising a drying box, a feeding pipe fixedly connected to the center of the drying box, both ends of the feeding pipe passing through the drying box, a conveying screw rotatably connected to the feeding pipe, a discharge pipe connected to the top of the drying box at a side protruding from one end of the drying box;

[0007] A shaft tube is rotatably connected in the drying box, a stirring blade is arranged on the outer wall of the shaft tube, and the bottom end of the feeding pipe is connected to the material bin.

[0008] As a preferred solution of the present invention, the inner ring of the bearing is fixed to the outer wall of the feeding pipe, and the outer ring of the bearing is connected to the inner wall of the shaft tube.

[0009] As a preferred solution of the present invention, the shaft tube is provided with a gear 1, a power mechanism 1 is fixed on the top of the drying box, and a gear 2 meshing with the gear 1 is fixed on the output end of the power mechanism 1.

[0010] As a preferred solution of the present invention, a second power mechanism is provided at the bottom end of the conveying screw.

[0011] As a preferred solution of the present invention, a hollow plate is provided in the silo along its cross section.

[0012] As a preferred solution of the present invention, a rotating shaft is rotatably connected in the silo, the top end of the rotating shaft protrudes from the hollow plate, and a plurality of disturbance rods are fixed to the top end of the rotating shaft.

[0013] As a preferred solution of the present invention, crushing teeth are fixed on the side of each disturbance rod.

[0014] As a preferred solution of the present invention, the rotating shaft is drivingly connected to the feeding screw.

[0015] As a preferred solution of the present invention, a heat source pipe is provided on the outer surface of the drying box in a spiral shape, and the outside of the heat source pipe is wrapped with a heat insulation layer.

[0016] As a preferred solution of the present invention, a protection box is provided in the drying box, and the gear 1 and the gear 2 are both located inside the protection box.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: when in use, plastic particles are added to the hopper, and the conveying screw is rotated. The screw starts to rotate, thereby pushing the plastic particles from the bottom of the hopper to the inside of the drying box, and the plastic particles enter the drying box from the top of the drying box. As the plastic particles are fed into the drying box, the shaft tube and the stirring blades thereon also start to rotate. The function of the stirring blades is to stir the plastic particles so that they are fully in contact with the hot air, while preventing the material from agglomerating or piling up, ensuring that each particle can be evenly heated. Under the action of high temperature, the moisture in the plastic particles gradually evaporates and is discharged out of the drying box along the air vent. Compared with the prior art, the present device integrates the feeding, drying and discharging devices into an integrated design, which reduces the floor space and simplifies the production line layout. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 yes Figure 1 Front view of

[0020] Figure 3 It is a cross-sectional view of the utility model;

[0021] Markings in the attached figure: 1. Drying box; 2. Feeding pipe; 3. Conveying screw; 4. Discharge pipe; 5. Shaft tube; 6. Stirring blade; 7. Hob; 8. Bearing; 9. Gear 1; 10. Power mechanism 1; 11. Gear 2; 12. Power mechanism 2; 13. Hollow plate; 14. Rotating shaft; 15. Disturbing rod; 16. Crushing teeth; 17. Heat source pipe; 18. Insulation layer; 19. Protective box. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "embodiment" as used herein refers to specific features, structures, or characteristics that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0025] Example

[0026] Reference Figure 1-Figure 3 This embodiment provides a drying device for processing plastic particles, including a drying box 1, the top of the drying box 1 is connected to an air vent, the bottom side of the drying box 1 is connected to a discharge port, the center of the drying box 1 is fixedly connected to a feeding pipe 2, the feeding pipe 2 is coaxially arranged with the drying box 1, both ends of the feeding pipe 2 pass through the drying box 1, a conveying screw 3 is rotatably connected in the feeding pipe 2, the top of the feeding pipe 2 protruding from one end of the drying box 1 is connected to a discharge pipe 4, and the discharge pipe 4 is connected to the top of the drying box 1; a shaft tube 5 is rotatably connected in the drying box 1, the outer wall of the shaft tube 5 is provided with a stirring blade 6, and the bottom end of the feeding pipe 2 is connected to a silo 7;

[0027] In this embodiment, when in use, plastic particles are added to the silo 7, and the conveying screw 3 is rotated. The screw starts to rotate, thereby pushing the plastic particles from the bottom of the silo 7 to the inside of the drying box 1, and the plastic particles enter the drying box 1 from the top of the drying box 1. As the plastic particles are fed into the drying box 1, the shaft tube 5 and the stirring blades 6 thereon also start to rotate. The function of the stirring blades 6 is to stir the plastic particles so that they are fully in contact with the hot air, while preventing the material from agglomerating or piling up, ensuring that each particle can be evenly heated. Under the action of high temperature, the moisture in the plastic particles gradually evaporates and is discharged out of the drying box 1 along the air vent. Compared with the prior art, the device integrates the feeding, drying and discharging devices into an integrated design, which reduces the floor space and simplifies the production line layout.

[0028] As a preferred solution of the present invention, the inner ring of the bearing 8 is fixed to the outer wall of the feeding pipe 2, and the outer ring of the bearing 8 is connected to the inner wall of the shaft tube 5. With the support of the bearing 8, the shaft tube 5 is more stable during rotation, reducing mechanical wear caused by vibration or eccentricity. This design helps to maintain the smooth operation of the entire device and improves the reliability and continuity of the drying process.

[0029] As a preferred solution of the present invention, the shaft tube 5 is provided with a gear 9, and a power mechanism 10 is fixed on the top of the drying box 1. The power mechanism 10 adopts a servo motor, and a gear 2 11 engaged with the gear 9 is fixed at the output end of the power mechanism 10. Through the gear transmission, the rotation speed of the shaft tube 5 can be accurately controlled. The gear transmission has a high transmission ratio accuracy, which can ensure that the stirring blade 6 rotates at a constant speed, thereby ensuring uniform mixing and heating of the plastic particles.

[0030] As a preferred solution of the present invention, a power mechanism 2 12 is provided at the bottom end of the conveying screw 3. The power mechanism 2 12 adopts a servo motor, which drives the feeding screw to rotate through the power mechanism 2 12, thereby realizing automatic conveying of plastic particles.

[0031] As a preferred solution of the present invention, a hollow plate 13 is provided along the cross section of the silo 7. The appropriate hollow design allows the material to enter the feeding screw at a relatively constant speed, thereby helping to control the flow of the material and making the entire conveying process more stable.

[0032] As a preferred solution of the present invention, a rotating shaft 14 is rotatably connected in the silo 7, and the top of the rotating shaft 14 protrudes from the hollow plate 13. A plurality of disturbance rods 15 are fixed to the top of the rotating shaft 14. When the rotating shaft 14 rotates, the disturbance rods 15 are driven to rotate. The disturbance rods 15 can stir the material to prevent the plastic particles from agglomerating in the silo 7 due to standing still for too long. This is very important for maintaining the fluidity of the material, especially when processing materials with strong hygroscopicity.

[0033] As a preferred solution of the present invention, crushing teeth 16 are fixed to the side of each disturbance rod 15. The crushing teeth 16 can effectively crush large pieces of material entering the hopper 7. This is very important for preventing large pieces of material from clogging the conveying screw 3 or affecting the drying process. By pre-crushing, it is ensured that the material can pass through the entire system smoothly.

[0034] As a preferred solution of the present invention, the rotating shaft 14 is connected to the feeding screw by transmission. More specifically, the rotating shaft 14 and the feeding screw are connected by transmission using a synchronous belt or chain. That is to say, the power mechanism 12 can simultaneously drive the rotating shaft 14 and the feeding screw to rotate, reducing the use of power.

[0035] As a preferred solution of the present invention, a heat source pipe 17 is spirally provided on the outer surface of the drying box 1, and the outside of the heat source pipe 17 is wrapped with an insulation layer 18. A heat source is introduced into the heat source pipe 17 to provide heat to the drying box 1, and the insulation layer 18 is used to reduce heat loss.

[0036] As a preferred solution of the present invention, a protective box 19 is provided in the drying box 1, and the gear 1 9 and the gear 2 11 are both located inside the protective box 19. The protective box 19 can effectively isolate the gear system from the material in the drying box 1, preventing plastic particles or other impurities from entering the gear system, thereby avoiding wear or failure caused by contamination.

[0037] It will be appreciated that in the development of any actual embodiment, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will, for those of ordinary skill having the benefit of this disclosure, be a routine undertaking of design, fabrication, and production without undue experimentation.

[0038] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A drying device for processing plastic particles, characterized in that: The drying box (1) comprises a feeding pipe (2) fixedly connected to the center of the drying box (1), both ends of the feeding pipe (2) pass through the drying box (1), a conveying screw (3) is rotatably connected in the feeding pipe (2), a discharge pipe (4) is connected to the side of the top of the feeding pipe (2) protruding from one end of the drying box (1), and the discharge pipe (4) is connected to the top of the drying box (1); A shaft tube (5) is rotatably connected in the drying box (1), a stirring blade (6) is provided on the outer wall of the shaft tube (5), and a material bin (7) is connected to the bottom end of the feeding pipe (2).

2. The drying device for processing plastic particles according to claim 1, wherein The inner ring of the bearing (8) is fixed to the outer wall of the feeding pipe (2), and the outer ring of the bearing (8) is connected to the inner wall of the shaft tube (5).

3. The drying device for processing plastic particles according to claim 2, wherein: The shaft tube (5) is provided with a gear 1 (9), a power mechanism 1 (10) is fixed on the top of the drying box (1), and a gear 2 (11) meshing with the gear 1 (9) is fixed on the output end of the power mechanism 1 (10).

4. The drying device for processing plastic particles according to claim 1, wherein: The bottom end of the conveying screw (3) is provided with a second power mechanism (12).

5. The drying device for processing plastic particles according to claim 4, wherein: A hollow plate (13) is provided in the silo (7) along its cross section.

6. The drying device for processing plastic particles according to claim 5, wherein: A rotating shaft (14) is rotatably connected in the silo (7), the top end of the rotating shaft (14) protrudes from the hollow plate (13), and a plurality of disturbing rods (15) are fixed to the top end of the rotating shaft (14).

7. The drying device for processing plastic particles according to claim 6, wherein: Crushing teeth (16) are fixed on the side of each disturbance rod (15).

8. The drying device for processing plastic particles according to claim 7, wherein: The rotating shaft (14) is drivingly connected to the feeding screw.

9. The drying device for processing plastic particles according to claim 1, wherein: The outer surface of the drying box (1) is provided with a heat source pipe (17) in a spiral shape, and the outside of the heat source pipe (17) is wrapped with a heat insulation layer (18).

10. The drying device for processing plastic particles according to claim 3, wherein: A protection box (19) is provided in the drying box (1), and the gear 1 (9) and the gear 2 (11) are both located inside the protection box (19).

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