Extrusion device for a granulation plant

Abstract

The utility model discloses an extruding device of granulating equipment, include: double screw extruder, extrusion material mould is set up in one side of double screw extruder, the beneficial effects of the utility model are: through being provided with side material guide frame, outer ventilation frame and air inlet frame, the wind in the outer ventilation frame is blown into the side material guide frame through the air inlet frame when blowing the wind to the outer ventilation frame, and the extrusion material of discharge hole is handled to cool, and the extrusion material is handled to cut through the cutting knife, and through being provided with cooling liquid tank, S type cold air pipe, realize that the cooling liquid passes through cooling liquid inlet pipe and enters the cooling liquid tank, and the ventilation in the S type cold air pipe is handled to cool through the cooling liquid in the cooling liquid tank, and the cooling liquid in the cooling liquid tank is discharged through the cooling liquid outlet pipe, and the cooling liquid in the cooling liquid tank is continuously ventilated through the cooling liquid inlet pipe, and the cold air is inputted to the outer ventilation frame through the S type cold air pipe, prevents the mutual adhesion between the particles when cutting the particles.

Description

Technical Field

[0001] This utility model relates to the field of granulation equipment technology, specifically to an extrusion device for granulation equipment. Background Technology

[0002] Masterbatch, also known as plastic masterbatch, is a plastic processing aid. It consists of excessive amounts of chemical additives, carrier resin, and dispersants. Masterbatch is an aggregate obtained by uniformly loading excessive amounts of pigments (dyes) into resin. In the plastic processing and molding process, for ease of operation, various additives, fillers, and a small amount of carrier resin are mixed and kneaded. The resulting granules are obtained through processes such as metering, mixing, melting, extrusion, and pelletizing using equipment such as extruders. The extrusion device of the pelletizing equipment is a key component in the pelletizing process. Its main function is to melt and plasticize plastic raw materials or modified masterbatches into a uniform melt. However, in the current cutting and pelletizing process, most pelletizing equipment does not have a cooling structure after the cutting and pelletizing stage. When the cutting and pelletizing process ends, the produced granules are usually in a high-temperature state and still have a certain degree of stickiness. The granules are very easy to stick together, resulting in irregular granule shapes. Summary of the Invention

[0003] The purpose of this utility model is to provide an extrusion device for a granulation equipment, in order to solve the problem mentioned in the background art that in the current cutting and granulation process, most granulation equipment does not have a cooling structure after the cutting and granulation stage. When the cutting and granulation process is completed, the produced granules are usually in a high temperature state and still have a certain degree of stickiness. The granules are very easy to stick together, resulting in irregular granule shapes.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an extrusion device for a granulation equipment, comprising:

[0005] Twin-screw extruder;

[0006] An extrusion die is disposed on one side of a twin-screw extruder, and the interior of the extrusion die has multiple discharge holes.

[0007] Side guide frame, the side guide frame is set on one side of the extrusion die;

[0008] A rotating rod is rotatably mounted inside the side guide frame, and one end of the rotating rod is rotatably connected to the extrusion die.

[0009] The cutting blades are equidistantly arranged on the outside of the rotating rod, and the cutting blades cooperate with the discharge hole;

[0010] An external ventilation frame is fixed to the outside of the side guide frame, and multiple air inlet frames are fixed at equal intervals on the inner side of the external ventilation frame. The air inlet frames are fixed to the side guide frame.

[0011] Coolant tank, the coolant tank is located on one side of the side guide frame;

[0012] The S-shaped cooling duct is fixed inside the coolant tank, and one end of the S-shaped cooling duct is connected to the outer ventilation frame via a duct.

[0013] As a preferred embodiment of this utility model: a fixed side box is fixedly connected to one side of the side guide frame, the rotating rod is rotatably connected to the fixed side box, a worm gear is fixedly connected to the outer side of the rotating rod, a worm is rotatably arranged inside the fixed side box, the worm is meshed with the worm gear, a motor is installed on one side of the fixed side box, and the output end of the motor is fixedly connected to the worm.

[0014] As a preferred embodiment of this utility model: a support frame is fixedly connected to the bottom of the twin-screw extruder, a fan is installed on the top of the support frame, the output end of the fan is connected to an S-shaped cooling air duct through an air duct, an air inlet pipe is fixedly connected to the input end of the fan, and a filter screen is installed at one end of the air inlet pipe by bolts.

[0015] As a preferred embodiment of this utility model, a feeding pipe is fixedly connected to the top of the twin-screw extruder.

[0016] As a preferred embodiment of this utility model, a guide plate is fixedly connected to one side of the extrusion die.

[0017] As a preferred embodiment of this utility model: a coolant inlet pipe is fixedly connected to the top of the coolant tank, and a coolant outlet pipe is fixedly connected to one side of the coolant tank.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, by setting up a side guide frame, an outer ventilation frame, and an air inlet frame, allows air to be blown into the outer ventilation frame and then into the side guide frame through the air inlet frame, cooling the extruded material from the outlet. The extruded material is then cut by a cutting blade. Furthermore, by setting up a coolant tank and an S-shaped cooling duct, the coolant is effectively channeled through...

[0019] The coolant inlet pipe enters the coolant tank, and the coolant in the tank cools the ventilation in the S-shaped cooling air duct. The coolant outlet pipe discharges the coolant from the tank. The coolant inlet pipe continuously supplies coolant to the tank, while the S-shaped cooling air duct introduces cold air into the external ventilation frame to prevent pellets from sticking together during pelleting. Attached Figure Description

[0020] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 is a bottom view of this utility model;

[0022] Figure 3 is a schematic diagram of the internal structure of the fixed side box of this utility model;

[0023] Figure 4 is a schematic diagram of the internal structure of the side guide frame of this utility model;

[0024] Figure 5 is a schematic diagram of the internal structure of the coolant tank of this utility model;

[0025] Figure 6 is a top view of this utility model.

[0026] In the diagram: 1. Support frame; 2. Twin-screw extruder; 3. Side guide frame; 4. External ventilation frame; 5. Coolant tank; 6. S-shaped cooling air duct; 7. Rotating rod; 8. Cutting knife; 9. Extrusion die; 10. Discharge hole; 11. Guide plate; 12. Fan; 13. Air inlet pipe; 14. Filter screen; 15. Fixed side box; 16. Worm gear; 17. Worm wheel; 18. Motor; 19. Feeding pipe; 20. Coolant inlet pipe; 21. Coolant outlet pipe; 22. Air inlet frame. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please refer to Figure 1 to Figure 6 This utility model provides a technical solution: an extrusion device for a granulation equipment, comprising: a twin-screw extruder 2; an extrusion die 9 fixedly mounted on one side of the twin-screw extruder 2 by bolts, the extrusion die 9 having multiple discharge holes 10 inside; and a side guide frame 3 fixedly mounted by bolts.

[0029] The extrusion die 9 is fixedly installed on one side; the rotating rod 7 is rotatably set inside the side guide frame 3, and one end of the rotating rod 7 is rotatably connected to the extrusion die 9; the cutting blade 8 is equidistantly fixed to the outside of the rotating rod 7, and the cutting blade 8 cooperates with the discharge hole 10; the outer ventilation frame 4 is fixed to the outside of the side guide frame 3, and multiple air inlet frames 22 are equidistantly fixed to the inner side of the outer ventilation frame 4, and the air inlet frames 22 are fixed to the side guide frame 3; the coolant tank 5 is fixed to one side of the side guide frame 3; the S-shaped cooling air duct 6 is fixed to the inside of the coolant tank 5, and one end of the S-shaped cooling air duct 6 is connected to the outer ventilation frame 4 through an air duct.

[0030] It should be noted that, in this embodiment, the twin-screw extruder 2 mainly includes: a transmission device for providing power and supporting screw rotation; an extrusion system: barrel, twin screws, and die head connector for melting and extruding raw materials; a feeding system: hopper, feeder, and feeder transmission device for storing and conveying raw materials; and a heating and cooling system: heating coils, cooling channels, temperature controllers, and sensors for controlling the temperature of the barrel and screw. Raw materials are fed through the feeding pipe 19 and extruded through the extrusion die 9 and discharge hole 10 on one side of the twin-screw extruder 2. Coolant is injected into the coolant tank 5 through the coolant inlet pipe 20, cooling the S-shaped cooling duct 6. Air is blown through the duct connected to the S-shaped cooling duct 6 at the output end of the blower 12, and air is introduced through the air inlet pipe 13 and filter screen 14 at the input end of the blower 12, cooling the S-shaped cooling duct 6. The coolant in the coolant tank 5 cools the S-shaped cooling duct. The air inside the cooling duct 6 is cooled and blown into the outer ventilation frame 4. The air is blown into the air inlet frames 22 inside the outer ventilation frame 4. The output of the motor 18 drives the worm gear 16 to rotate. When the worm gear 16 rotates, it drives the meshing worm wheel 17 to rotate. When the worm wheel 17 rotates, it drives the inner rotating rod 7 to rotate. When the rotating rod 7 rotates, it drives the outer cutting blades 8 to rotate. The cutting blades 8 cut the extruded material from the discharge hole 10 into pellets. The pellets are guided out by the guide plate 11. Coolant is continuously introduced into the coolant tank 5 through the coolant inlet pipe 20 and discharged from the coolant tank 5 through the coolant outlet pipe 21. Blowing cold air prevents the pellets from sticking together.

[0031] In one embodiment, as shown in Figures 1 to 12, Figure 5 As shown, a fixed side box 15 is fixedly connected to one side of the side guide frame 3. A rotating rod 7 is rotatably connected to the fixed side box 15. A worm gear 17 is fixedly connected to the outer side of the rotating rod 7. A worm 16 is rotatably installed inside the fixed side box 15, and the worm 16 meshes with the worm gear 17.

[0032] A motor 18 is installed on one side of the housing 15, and the output end of the motor 18 is fixedly connected to the worm gear 16.

[0033] It should be noted that in this embodiment, the output end of the motor 18 drives the worm 16 to rotate. When the worm 16 rotates, it drives the meshing worm wheel 17 to rotate. The rotation of the worm wheel 17 drives the inner rotating rod 7 to rotate. The rotating rod 7 drives the outer cutting blades 8 to rotate, and the cutting blades 8 perform pelletizing.

[0034] In one embodiment, as shown in Figures 1 to 12, Figure 6 As shown, a support frame 1 is fixedly connected to the bottom of the twin-screw extruder 2, and a fan 12 is installed on the top of the support frame 1. The output end of the fan 12 is connected to the S-shaped cooling air duct 6 through an air duct. An air inlet pipe 13 is fixedly connected to the input end of the fan 12, and a filter screen 14 is installed at one end of the air inlet pipe 13 by bolts.

[0035] It should be noted that in this embodiment, air enters through the air inlet pipe 13 at the input end of the fan 12, and the air entering the air inlet pipe 13 and the fan 12 is filtered through the filter screen 14.

[0036] In one embodiment, as shown in Figures 1 to 12, Figure 6 As shown, a feeding pipe 19 is fixedly connected to the top of the twin-screw extruder 2.

[0037] It should be noted that, in this embodiment, the raw material is fed into the twin-screw extruder 2 through the feeding pipe 19.

[0038] In one embodiment, as shown in Figures 1 to 12, Figure 5 As shown, a guide plate 11 is fixedly connected to one side of the extrusion die 9.

[0039] It should be noted that in this embodiment, the granulated material is guided by the guide plate 11.

[0040] In one embodiment, as shown in Figures 1, 2, 3, 5 and Figure 6 As shown, a coolant inlet pipe 20 is fixedly connected to the top of the coolant tank 5, and a coolant outlet pipe 21 is fixedly connected to one side of the coolant tank 5.

[0041] It should be noted that in this embodiment, coolant is continuously introduced into the coolant tank 5 through the coolant inlet pipe 20, and the coolant in the coolant tank 5 is discharged through the coolant outlet pipe 21.

[0042] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", and "top" are used interchangeably.

[0043] The terms "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this utility model.

[0044] Furthermore, the terms “first,” “second,” “third,” and “fourth” are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as “first,” “second,” “third,” or “fourth” may explicitly or implicitly include at least one of those features.

[0045] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An extrusion device of a pelletizing apparatus, characterized by, include: Twin-screw extruder (2); Extrusion die (9) is located on one side of the twin-screw extruder (2), and the interior of the extrusion die (9) is provided with multiple discharge holes (10). Side guide frame (3), the side guide frame (3) is set on one side of the extrusion die (9); Rotating rod (7) is rotatably set inside the side guide frame (3), and one end of the rotating rod (7) is rotatably connected to the extrusion die (9); The cutting blade (8) is equidistantly arranged on the outside of the rotating rod (7), and the cutting blade (8) is matched with the discharge hole (10); An outer ventilation frame (4) is fixed to the outside of the side guide frame (3). Multiple air inlet frames (22) are fixed at equal intervals on the inner side of the outer ventilation frame (4). The air inlet frames (22) are fixed to the side guide frame (3). Coolant tank (5), coolant tank (5) is located on one side of side guide frame (3); The S-shaped cooling air duct (6) is fixed inside the coolant tank (5), and one end of the S-shaped cooling air duct (6) is connected to the outer ventilation frame (4) through an air duct.

2. The extrusion device of a granulation equipment according to claim 1, characterized in that: A fixed side box (15) is fixedly connected to one side of the side guide frame (3). The rotating rod (7) is rotatably connected to the fixed side box (15). A worm gear (17) is fixedly connected to the outside of the rotating rod (7). A worm (16) is rotatably installed inside the fixed side box (15). The worm (16) is meshed with the worm gear (17). A motor (18) is installed on one side of the fixed side box (15). The output end of the motor (18) is fixedly connected to the worm (16).

3. The extrusion device of a granulation equipment according to claim 1, characterized in that: The bottom of the twin-screw extruder (2) is fixedly connected to a support frame (1), and a fan (12) is installed on the top of the support frame (1). The output end of the fan (12) is connected to an S-shaped cooling duct (6) via a duct. The input end of the fan (12) is fixedly connected to an air inlet pipe (13). A filter screen (14) is installed at one end by bolts.

4. The extrusion device of a granulation equipment according to claim 1, characterized in that: The top of the twin-screw extruder (2) is fixedly connected to a feeding pipe (19).

5. The extrusion device of a granulation equipment according to claim 1, characterized in that: A guide plate (11) is fixed to one side of the extrusion die (9).

6. The extrusion device of a granulation equipment according to claim 1, characterized in that: A coolant inlet pipe (20) is fixedly connected to the top of the coolant tank (5), and a coolant outlet pipe (21) is fixedly connected to one side of the coolant tank (5).

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