Plastic particle drying device

Abstract

The utility model belongs to the technical field of plastic processing equipment, and particularly relates to a plastic particle drying device which comprises a drying cylinder and a cooling cylinder, a feeding pipe is connected to the top of the drying cylinder, a feeding port is connected to the top of the feeding pipe, a first gate valve is arranged on the feeding pipe, a stirring pipe is rotationally connected into the drying cylinder, and a stirring paddle is connected to the stirring pipe. The stirring pipe and the stirring paddle are both of a hollow pipe structure, air holes are formed in the stirring paddle, a driven gear is fixedly connected to the bottom of the stirring pipe, a motor is fixedly connected to the bottom of the drying cylinder, and the first fan is communicated with the stirring pipe through an air pipe and a rotary connector. The air holes are formed in the stirring paddle, hot air can be conveyed through the air holes in the stirring process, the hot air can be conveyed into a plastic particle pile in all directions, and therefore the drying efficiency and the drying effect are improved, the cooling cylinder is arranged, the induced draft fan is used for exhausting air, mechanical cooling is achieved, and the cooling efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of plastic processing equipment, in particular to a plastic particle drying device. Background Art

[0002] During the production process, plastic pellets are extruded, then water-cooled, and then cut into pellets. Therefore, the pellets need to be surface-dehydrated. Existing dehydration methods use hot air drying, which is efficient and effective. However, the dehydrated plastic pellets are still hot, requiring them to be air-dried and cooled before storage. Therefore, a device capable of rapidly cooling the plastic pellets after drying is needed to meet this need. Utility Model Content

[0003] In view of the above technical problems, the utility model provides a plastic particle drying device, which can quickly cool down the plastic particles after drying.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is as follows: a plastic particle drying device, including a drying cylinder and a cooling cylinder, the top of the drying cylinder is connected to a feed pipe, the top of the feed pipe is connected to a feed port, a first gate valve is provided on the feed pipe, a stirring pipe is rotatably connected in the drying cylinder, a stirring paddle is connected to the stirring pipe, the stirring pipe and the stirring paddle are both hollow tube structures, an air hole is provided on the stirring paddle, a driven gear is fixedly connected to the bottom of the stirring tube, a motor is fixedly connected to the bottom of the drying cylinder, the rotating shaft of the motor passes through the bottom of the drying cylinder and is fixedly connected to a driving gear, the driving gear It is meshingly connected with the driven gear and includes a first fan, which is connected to the stirring tube through an air pipe and a rotary joint. The air pipe is divided into a first air pipe and a second air pipe. An electric heater is provided on the first air pipe. The bottom of the drying cylinder is connected to a material pipeline. A material fan is provided on the material pipeline. The end of the material pipeline is connected to the cooling cylinder. The top of the cooling cylinder is connected to the induced draft fan through a cooling pipe. The outlet of the induced draft fan is connected to the exhaust pipe. A discharge pipe is provided at the bottom of the cooling cylinder. A second gate valve is provided on the discharge pipe. A conveyor belt is provided at the bottom of the discharge pipe. A filter is provided on the side wall of the cooling cylinder.

[0005] Furthermore, a closable ventilation net is provided on the upper side wall of the drying drum.

[0006] Furthermore, a protection box is provided at the bottom of the drying drum, and the driving gear and the driven gear are located in the protection box.

[0007] Furthermore, a blowing hole is provided at the end of the stirring paddle.

[0008] Furthermore, a baffle is provided at the head end of the cooling pipe.

[0009] Compared with the prior art, the present invention has the following advantages:

[0010] The utility model is provided with air holes on the stirring paddle, and hot air can be transported through the air holes during the stirring process, so that the hot air can be transported to the plastic particle pile in an all-round way, thereby improving the drying efficiency and drying effect. A cooling cylinder is provided, and an induced draft fan is used to extract air, thereby achieving mechanical cooling and improving the cooling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic structural diagram of the utility model.

[0012] Figure 2 This is a schematic diagram of the structure of the drying drum of the present utility model.

[0013] Figure 3 This is a schematic diagram of the top view of the stirring paddle of the utility model.

[0014] Among them: 1. drying cylinder, 2. ventilation net, 3. first gate valve, 4. feed port, 5. feed pipe, 6. stirring paddle, 7. air hole, 8. stirring pipe, 9. first fan, 10. air pipe, 11. first air pipe, 12. electric heater, 13. second air pipe, 14. material pipeline, 15. material fan, 16. cooling cylinder, 17. cooling pipe, 18. induced draft fan, 19. exhaust pipe, 20. retaining net, 21. filter screen, 22. discharge pipe, 23. second gate valve, 24. conveyor belt, 25. protection box, 26. driven gear, 27. rotary joint, 28. motor, 29. driving gear, 30. blowing hole. DETAILED DESCRIPTION

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] like Figure 1-Figure 3The plastic particle drying device shown includes a drying cylinder 1 and a cooling cylinder 16. The top of the drying cylinder 1 is connected to a feed pipe 5, the top of the feed pipe 5 is connected to a feed port 4, and a first gate valve 3 is provided on the feed pipe 5. A stirring pipe 8 is connected to the drying cylinder 1 for rotation. A stirring paddle 6 is connected to the stirring pipe 8. The stirring pipe 8 and the stirring paddle 6 are both hollow tube structures. The stirring paddle 6 is provided with an air hole 7. The bottom of the stirring tube 8 is fixedly connected to a driven gear 26. The bottom of the drying cylinder 1 is fixedly connected to a motor 28. The rotating shaft of the motor 28 passes through the bottom of the drying cylinder 1 and is fixedly connected to a driving gear 29. The driving gear 29 is meshed with the driven gear 26 for transmission connection, including a first fan 9. The first fan 9 is connected to the stirring tube 8 through the air pipe 10 and the rotary joint 27. The air pipe is divided into a first air pipe 11 and a second air pipe 13. An electric heater 12 is provided on the first air pipe 11. The bottom of the drying cylinder 1 is connected to a material pipe 14. A material fan 15 is provided on the material pipe 14. The end of the material pipe 14 is connected to the cooling cylinder 16. The top of the cooling cylinder 16 is connected to the induced draft fan 18 through a cooling pipe 17. The outlet of the induced draft fan 18 is connected to the exhaust pipe 19. A discharge pipe 22 is provided at the bottom of the cooling cylinder 16. A second gate valve 23 is provided on the discharge pipe 22. A conveyor belt 24 is provided at the bottom of the discharge pipe 22. A filter screen 21 is provided on the side wall of the cooling cylinder 16.

[0017] In order to prevent the air pressure from being too high, a closable ventilation net 2 is provided on the upper side wall of the drying drum 1.

[0018] In order to prevent interference from plastic particles, a protection box 25 is provided at the bottom of the drying drum 1 , and the driving gear 29 and the driven gear 26 are located in the protection box 25 .

[0019] In order to expand the blowing angle, a blowing hole 30 is provided at the end of the stirring paddle 6 .

[0020] In order to prevent the induced draft fan 18 from sucking in the plastic, a blocking net 20 is provided at the head end of the cooling pipe 17 .

[0021] The specific working process of this utility model is as follows:

[0022] During operation, the first gate valve 3 is opened, and the plastic particles are fed into the drying drum 1 from the feed port 4. After a certain amount of particles are fed, the first gate valve 3 is closed, the first fan 9 and the motor 28 are turned on, the air pipe 10 is adjusted to the first air pipe 11 for ventilation, the electric heater 12 is turned on, and the active gear 29 is used to drive the driven gear 26 to rotate, which drives the stirring tube 8 and the stirring paddle 6 to rotate, and the hot air is blown out from the air hole 7, thereby achieving stirring and drying, improving the drying effect and drying efficiency, and opening the ventilation net 2 to prevent the internal pressure from being too high. After drying is completed, the ventilation net 2 is closed and the material air is turned on. The machine 15 uses the material pipe 14 to suck the plastic particles into the cooling cylinder 16. During the suction process, some particles will stick to the drying cylinder 1. At this time, the air pipe 10 is adjusted to the second air pipe 13. Since there is no electric heater 12 to block it, the wind speed will be increased, thereby blowing the particles down. The material blower 15 is turned on to suck the remaining particles into the cooling cylinder 16. The induced draft fan 18 is turned on, and the air flows through the filter 21 through the cooling cylinder 16 to achieve cooling of the particles. After cooling, the second gate valve 23 is opened, and the plastic particles fall from the discharge pipe 22 onto the conveyor belt 24 and are taken away by the conveyor belt 24.

Claims

1. A plastic granule drying device, comprising a drying cylinder (1) and a cooling cylinder (16), characterized in that: The top of the drying cylinder (1) is connected to a feed pipe (5), the top of the feed pipe (5) is connected to a feed port (4), a first gate valve (3) is provided on the feed pipe (5), a stirring pipe (8) is rotatably connected in the drying cylinder (1), a stirring paddle (6) is connected to the stirring pipe (8), the stirring pipe (8) and the stirring paddle (6) are both hollow tube structures, an air hole (7) is provided on the stirring paddle (6), a driven gear (26) is fixedly connected to the bottom of the stirring pipe (8), a motor (28) is fixedly connected to the bottom of the drying cylinder (1), a rotating shaft of the motor (28) passes through the bottom of the drying cylinder (1) and is fixedly connected to a driving gear (29), the driving gear (29) is meshed with the driven gear (26) for transmission connection, and includes a first fan (9), the first fan (9) is connected to the driven gear (26) through the air pipe (1 0) is connected to the stirring tube (8) through a rotary joint (27), and the air pipe is divided into a first air pipe (11) and a second air pipe (13). An electric heater (12) is provided on the first air pipe (11). The bottom of the drying cylinder (1) is connected to a material pipe (14). A material fan (15) is provided on the material pipe (14). The end of the material pipe (14) is connected to a cooling cylinder (16). The top of the cooling cylinder (16) is connected to an induced draft fan (18) through a cooling pipe (17). The outlet of the induced draft fan (18) is connected to an exhaust pipe (19). A discharge pipe (22) is provided at the bottom of the cooling cylinder (16). A second gate valve (23) is provided on the discharge pipe (22). A conveyor belt (24) is provided at the bottom of the discharge pipe (22). A filter screen (21) is provided on the side wall of the cooling cylinder (16).

2. The plastic particle drying device according to claim 1, characterized in that: A closable ventilation net (2) is provided on the upper side wall of the drying cylinder (1).

3. The plastic particle drying device according to claim 1, characterized in that: A protection box (25) is provided at the bottom of the drying drum (1), and the driving gear (29) and the driven gear (26) are located in the protection box (25).

4. The plastic particle drying device according to claim 1, characterized in that: The end of the stirring paddle (6) is provided with a blowing hole (30).

5. The plastic particle drying device according to claim 1, characterized in that: A blocking net (20) is provided at the head end of the cooling pipe (17).

Images