PVC plastic extruding, granulating and drying device

Abstract

The utility model discloses a PVC plastic extruding, pelletizing and drying device which comprises a draining box and a drying box, a conveying pipe is installed between the draining box and the drying box, a feeding port is formed in the upper portion of the draining box, a separating pipe is installed between the bottom of the feeding port and the draining box, and a supporting rod is fixedly installed in an inner cavity of the draining box. A spiral conveying piece is arranged on the supporting rod, a conveying net is arranged between the spiral conveying piece and the conveying pipe, an air inlet box is arranged on one side of the draining box, a recycling box is connected to the bottom of the draining box, a drying cavity is formed in an inner cavity of the drying box, ventilation channels are formed in the two sides of the inner cavity of the drying cavity, and the ventilation channels are filled with drying agents. The PVC colloidal particle drying device has the advantages that the PVC colloidal particle drying device is simple in structure and reasonable in design, the PVC colloidal particles can be dried, and the drying effect can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic drying equipment, in particular to a PVC plastic extrusion pelletizing drying device. Background Art

[0002] A pelletizer is a molding machine that can make materials into specific shapes. The molten polymer is extruded from a hot die and cut into pellets by a rotating knife that rotates on the die surface. The characteristic of this pelletizing system is its specially designed water spray pelletizing chamber. The water flows in a spiral until it flows out of the pelletizing chamber. After the pellets are cut, they are thrown into the water flow for preliminary quenching. The pellet water slurry is discharged into the pellet slurry tank for further cooling, and then sent to the centrifugal dryer to remove moisture. The plastic pellets need to be dried after extrusion and pelletizing.

[0003] Application No. 201920374428.0 discloses a plastic pellet extrusion pelletizing dryer, comprising a drying chamber, a material guiding mechanism and a mobile circulation mechanism, a support seat is fixedly installed at the bottom of the drying chamber, a material feed port is installed on one side of the top of the drying chamber, a material discharge port is opened at the bottom of the drying chamber, a material guiding mechanism is installed inside the drying chamber, the material guiding mechanism comprises a first material guide plate and a second material guide plate, the second material guide plate is fixedly installed in the drying chamber at the bottom of the first material guide plate, the first material guide plate and the second material guide plate are both inclined, and the inclination angles of the first material guide plate and the second material guide plate are relatively set, and a mobile circulation mechanism is installed on the top of the drying chamber; the utility model has a reasonable and simple structure, the internal circulation heating reduces the heat loss, ensures the drying temperature and efficiency, the mobile heating in the drying chamber, the heating and drying are more balanced, the drying time and the drying path are increased, and the drying effect is better when combined with the mobile circulation mechanism.

[0004] Although this technology can dry plastic pellets, due to the closed interior, the evaporated water vapor cannot be processed, which will affect the drying effect. In addition, when drying directly by heating, the water attached to the surface of the pellets is only dried by heating, and the drying efficiency is low.

[0005] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0006] In view of the problems in the related art, the utility model proposes a PVC plastic extrusion pelletizing and drying device to overcome the above technical problems existing in the existing related art.

[0007] To this end, the specific technical solutions adopted by the utility model are as follows:

[0008] A PVC plastic extrusion pelletizing and drying device comprises a drain box and a drying box, a conveying pipe is installed between the drain box and the drying box, a feed port is arranged above the drain box, a separation pipe is installed between the bottom of the feed port and the drain box, a support rod is fixedly installed in the inner cavity of the drain box, a spiral conveyor is arranged on the support rod, a conveying net is arranged between the spiral conveyor and the conveying pipe, an air inlet box is arranged on one side of the drain box, a recovery box is connected to the bottom of the drain box, a drying chamber is arranged in the inner cavity of the drying box, ventilation ducts are arranged on both sides of the inner cavity of the drying chamber, the ventilation ducts are filled with desiccant, a hot air blower is arranged on the top of the drying chamber, and support nets are arranged obliquely at both ends of the inner cavity of the drying box.

[0009] Preferably, a stirring rod is provided in the separation tube, a stirring motor is installed at the bottom end of the stirring rod, an auxiliary rod is provided on the outside of the stirring rod, and the auxiliary rod is vertically installed on the inner wall of the separation tube, the diameter of the separation tube is smaller than the diameter of the screw conveyor, a protective cloth cylinder is provided between the bottom of the separation tube and the screw conveyor, and the rear side of the bottom end of the protective cloth cylinder is fixedly connected to the screw conveyor.

[0010] Preferably, the bottom of the spiral conveyor is fixedly connected to the drain box through a connecting frame, and the spiral conveyor comprises a spiral conveyor plate, a conveying trough is arranged on the top of the spiral conveyor plate, and a drain net is arranged in the conveying trough.

[0011] Preferably, the bottom of the inner cavity of the drain box is configured as a funnel-shaped structure with a low middle portion.

[0012] Preferably, the inner cavity of the air inlet box is provided with a fan, the outer end of the fan is provided with a dustproof net, the air inlet box is connected to an air inlet pipe at one end inside the drain box, an air outlet nozzle is installed at the bottom of the air inlet pipe, and the air outlet nozzle is arranged on the upper side of the conveying net.

[0013] Preferably, the upper and lower ends of the ventilation duct are connected to the drying chamber, and an air distribution plate is provided at the lower side of the hot air blower.

[0014] The beneficial effects of the utility model are as follows: by setting a separation tube, the PVC rubber particles after pelletizing can be separated to avoid the accumulation of rubber particles and the influence of drying effect; by setting a spiral conveyor, the rubber particles can be dispersed and rolled down conveniently, and the water attached to the rubber particles can be separated conveniently at the same time; the separated water passes through the drain net, then slides down from the spiral conveyor plate, enters the recovery box for collection, and then the air is blown out from the air inlet box to blow the water that slides onto the conveyor net to ensure that the water attached to the surface of the rubber particles is fully separated; by setting a hot air blower, the rubber particles are dried to ensure the drying effect; then the hot air is dried through the ventilation duct and recycled for reuse, thereby reducing energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 This is a schematic diagram of the overall structure of a PVC plastic extrusion pelletizing and drying device according to an embodiment of the utility model;

[0017] Figure 2 This is a diagram showing the internal structure of a drain box of a PVC plastic extrusion pelletizing and drying device according to an embodiment of the utility model;

[0018] Figure 3 This is a structural diagram of a drying box of a PVC plastic extrusion pelletizing and drying device according to an embodiment of the utility model;

[0019] Figure 4 It is a cross-sectional view of a drying box of a PVC plastic extrusion pelletizing and drying device according to an embodiment of the utility model.

[0020] In the figure:

[0021] 1. Drain box; 2. Drying box; 3. Conveying pipe; 4. Feeding port; 5. Separation pipe; 6. Support rod; 7. Screw conveyor; 8. Conveying net; 9. Air inlet box; 10. Recovery box; 11. Drying chamber; 12. Ventilation duct; 13. Desiccant; 14. Hot air blower; 15. Support net; 16. Stirring rod; 17. Stirring motor; 18. Auxiliary rod; 19. Protective cloth cylinder; 20. Screw conveying plate; 21. Conveying trough; 22. Drain net; 23. Fan; 24. Dust net; 25. Air inlet pipe; 26. Air outlet; 27. Air distribution plate. DETAILED DESCRIPTION

[0022] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0023] According to an embodiment of the utility model, a PVC plastic extrusion pelletizing and drying device is provided.

[0024] Embodiment 1

[0025] like Figure 1-4As shown, a PVC plastic extrusion pelletizing and drying device according to an embodiment of the utility model comprises a drain box 1 and a drying box 2, a conveying pipe 3 is installed between the drain box 1 and the drying box 2, a feed port 4 is arranged above the drain box 1, a separation pipe 5 is installed between the bottom of the feed port 4 and the drain box 1, a support rod 6 is fixedly installed in the inner cavity of the drain box 1, a spiral conveying member 7 is arranged on the support rod 6, a conveying net 8 is arranged between the spiral conveying member 7 and the conveying pipe 3, an air inlet box 9 is arranged on one side of the drain box 1, a recovery box 10 is connected to the bottom of the drain box 1, a drying chamber 11 is arranged in the inner cavity of the drying box 2, ventilation ducts 12 are arranged on both sides of the inner cavity of the drying chamber 11, and the ventilation ducts 12 are filled with desiccant 13, a hot air blower 14 is arranged on the top of the drying chamber 11, and a support net 15 is arranged obliquely at both ends of the inner cavity of the drying box 2, a stirring rod 16 is arranged in the separation pipe 5, and a stirring electric Machine 17, an auxiliary rod 18 is arranged on the outside of the stirring rod 16, and the auxiliary rod 18 is vertically installed on the inner wall of the separation tube 5, the diameter of the separation tube 5 is smaller than the diameter of the spiral conveyor 7, a protective cloth tube 19 is arranged between the bottom of the separation tube 5 and the spiral conveyor 7, and the rear side of the bottom end of the protective cloth tube 19 is fixedly connected to the spiral conveyor 7, the bottom of the spiral conveyor 7 is fixedly connected to the drain box 1 through a connecting frame, the spiral conveyor 7 includes a spiral conveying plate 20, a conveying trough 21 is arranged on the top of the spiral conveying plate 20, a drain net 22 is arranged in the conveying trough 21, the bottom of the inner cavity of the drain box 1 is arranged into a funnel-shaped structure with a low middle, the pelletized PVC pellets are put into the feed port, and then the accumulated PVC pellets are stirred by the stirring rod, and then fall on the spiral conveyor 7 and roll down, so as to facilitate the separation of water attached to the pellets, and then pass through the conveying net 8 for convenient drying, and the separated water flows into the recovery box 10 for collection.

[0026] Embodiment 2

[0027] like Figure 1-4As shown, a PVC plastic extrusion pelletizing and drying device according to an embodiment of the utility model comprises a drain box 1 and a drying box 2, a conveying pipe 3 is installed between the drain box 1 and the drying box 2, a feed port 4 is arranged above the drain box 1, a separation pipe 5 is installed between the bottom of the feed port 4 and the drain box 1, a support rod 6 is fixedly installed in the inner cavity of the drain box 1, a spiral conveying member 7 is arranged on the support rod 6, a conveying net 8 is arranged between the spiral conveying member 7 and the conveying pipe 3, an air inlet box 9 is arranged on one side of the drain box 1, a recovery box 10 is connected to the bottom of the drain box 1, a drying chamber 11 is arranged in the inner cavity of the drying box 2, and the inner cavity of the drying chamber 11 Ventilation ducts 12 are arranged on both sides, and the ventilation ducts 12 are filled with desiccant 13. A hot air blower 14 is arranged on the top of the drying chamber 11. Support nets 15 are arranged obliquely at both ends of the inner cavity of the drying box 2. A fan 23 is arranged in the inner cavity of the air inlet box 9, and a dustproof net 24 is arranged at the outer end of the fan 23. The air inlet box 9 is connected to an air inlet pipe 25 at one end on the inner side of the drain box 1, and an air outlet nozzle 26 is installed at the bottom of the air inlet pipe 25, and the air outlet nozzle 26 is arranged on the upper side of the conveying net 8. The rubber particles rolled down from the spiral conveyor 7 pass through the conveying net 8, and the fan 23 blows out the air through the air outlet nozzle 26 to blow away the water attached to the rubber particles, thereby ensuring the drying effect of the rubber particles.

[0028] Embodiment 3

[0029] like Figure 1-4 As shown, a PVC plastic extrusion pelletizing and drying device according to an embodiment of the utility model comprises a drain box 1 and a drying box 2, a conveying pipe 3 is installed between the drain box 1 and the drying box 2, a feed port 4 is arranged above the drain box 1, a separation pipe 5 is installed between the bottom of the feed port 4 and the drain box 1, a support rod 6 is fixedly installed in the inner cavity of the drain box 1, a spiral conveying member 7 is arranged on the support rod 6, a conveying net 8 is arranged between the spiral conveying member 7 and the conveying pipe 3, an air inlet box 9 is arranged on one side of the drain box 1, a recovery box 10 is connected to the bottom of the drain box 1, and the drying box 2 is provided with a recovery box 10. A drying chamber 11 is provided in the inner cavity, ventilation ducts 12 are provided on both sides of the inner cavity of the drying chamber 11, and desiccant 13 is filled in the ventilation ducts 12. A hot air blower 14 is provided on the top of the drying chamber 11, and support nets 15 are obliquely provided at both ends of the inner cavity of the drying box 2. The upper and lower ends of the ventilation duct 12 are connected to the drying chamber 11, and an air distribution plate 27 is provided on the lower side of the hot air blower 14. The rubber particles enter the drying box 2, and the heated air is used by the hot air blower 14 to dry the rubber particles, thereby ensuring the drying effect, and then the used hot air is dried through the ventilation duct 12 and recycled, thereby reducing energy consumption.

[0030] In summary, with the aid of the above technical solution of the utility model, when the device is in use, the pelletized PVC plastic is poured into the feed port 4, the accumulated plastic pellets are dispersed through the separation tube 5, and then the water attached to the pellets is separated through the spiral conveyor 7. At the same time, the fan 23 is used to blow air to ensure the effect of separating the attached water, and then enters the drying chamber 11, and the air is heated by the hot air blower 14 to dry the pellets, thereby ensuring the effect, and then recycled through the ventilation duct 12, thereby reducing energy consumption.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A PVC plastic extrusion pelletizing and drying device, comprising a drain box (1) and a drying box (2), wherein a conveying pipe (3) is installed between the drain box (1) and the drying box (2), characterized in that: A feed port (4) is arranged above the drain box (1), a separation tube (5) is installed between the bottom of the feed port (4) and the drain box (1), a support rod (6) is fixedly installed in the inner cavity of the drain box (1), a spiral conveyor (7) is arranged on the support rod (6), a conveying net (8) is arranged between the spiral conveyor (7) and the conveying pipe (3), an air inlet box (9) is arranged on one side of the drain box (1), a recovery box (10) is connected to the bottom of the drain box (1), a drying chamber (11) is arranged in the inner cavity of the drying box (2), ventilation ducts (12) are arranged on both sides of the inner cavity of the drying chamber (11), and the ventilation ducts (12) are filled with desiccant (13), a hot air blower (14) is arranged on the top of the drying chamber (11), and support nets (15) are arranged obliquely at both ends of the inner cavity of the drying box (2).

2. A PVC plastic extrusion pelletizing and drying device according to claim 1, characterized in that: The separation tube (5) is provided with a stirring rod (16), the bottom end of which is provided with a stirring motor (17), an auxiliary rod (18) is provided on the outside of the stirring rod (16), and the auxiliary rod (18) is vertically installed on the inner wall of the separation tube (5), the diameter of the separation tube (5) is smaller than the diameter of the spiral conveyor (7), a protective cloth cylinder (19) is provided between the bottom of the separation tube (5) and the spiral conveyor (7), and the rear side of the bottom end of the protective cloth cylinder (19) is fixedly connected to the spiral conveyor (7).

3. A PVC plastic extrusion pelletizing and drying device according to claim 1, characterized in that: The bottom of the spiral conveyor (7) is fixedly connected to the drain box (1) via a connecting frame, and the spiral conveyor (7) comprises a spiral conveyor plate (20), a conveying trough (21) is arranged on the top of the spiral conveyor plate (20), and a drain net (22) is arranged in the conveying trough (21).

4. A PVC plastic extrusion pelletizing and drying device according to claim 1, characterized in that: The bottom of the inner cavity of the drain box (1) is configured as a funnel-shaped structure with a low middle portion.

5. A PVC plastic extrusion pelletizing and drying device according to claim 1, characterized in that: The inner cavity of the air inlet box (9) is provided with a fan (23), and the outer end of the fan (23) is provided with a dustproof net (24). The air inlet box (9) is connected to an air inlet pipe (25) at one end inside the drain box (1), and an air outlet nozzle (26) is installed at the bottom of the air inlet pipe (25), and the air outlet nozzle (26) is arranged on the upper side of the conveying net (8).

6. A PVC plastic extrusion pelletizing and drying device according to claim 1, characterized in that: The upper and lower ends of the ventilation duct (12) are connected to the drying chamber (11), and an air distribution plate (27) is provided on the lower side of the hot air blower (14).

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