Polyimide material twin-screw recycling granulator

Abstract

The utility model relates to the technical field of pelletizers, and discloses a polyimide material double-screw recycling pelletizer which comprises a double-screw extruder, a water tank is fixedly connected to one side of the double-screw extruder, a dehumidification blowing device is arranged on one side of the water tank, a granulator is arranged on one side of the dehumidification blowing device, and the granulator is arranged on the other side of the water tank. One side of the granulator is fixedly connected with a vibration device, the inner wall of the vibration device is fixedly connected with a conveying belt, one side of the vibration device is fixedly connected with a material suction fan, the output end of the material suction fan is fixedly connected with a material suction pipeline, and one end of the material suction pipeline is fixedly connected with a material storage stirrer. According to the utility model, materials are mixed and heated through the double-screw extruder, then cooled through the water tank, dehumidified through the dehumidification blowing device, granulated through the granulator and screened through the vibration device, so that a good granulation effect is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to pelletizer technical field especially relates to a kind of polyimide material double-screw recycling pelletizer. BACKGROUND

[0002] As a kind of high-performance polymer material, polyimide has excellent heat resistance, mechanical properties and chemical stability, and is widely used in aerospace, electronics and electrical appliances, automobiles and many other fields. With the increase of polyimide material usage, its recycling demand is increasingly prominent. As a key equipment for realizing polyimide recycling and pelletizing, polyimide material double-screw recycling pelletizer is of great significance to improve resource utilization and reduce production cost.

[0003] Existing polyimide recycling and pelletizing equipment mostly uses single-screw extruders, which push the material forward by rotating the screw, and heat the material by external heating device. The material is melted and mixed under the combined action of screw shearing and barrel heating. After simple cooling, the material is cut by cutting device, and finally screened by simple screening device. Its principle is mainly to utilize the conveying and extruding action of screw, and external heating to realize the preliminary processing of material.

[0004] However, the existing single-screw recycling and pelletizing equipment performs poorly in mixing efficiency. The structure of single screw makes the material mainly move axially during transportation, and mixing mainly depends on limited shearing and heat conduction, which makes it difficult to achieve efficient and uniform mixing of material, especially for polyimide with complex molecular structure and poor flowability. It is difficult to mix recycled raw materials and additives evenly and quickly, which leads to unstable product quality and cannot meet the demand for high-quality polyimide regenerated particles in large-scale industrial production. Therefore, a polyimide material double-screw recycling pelletizer is proposed to solve the above problems. SUMMARY

[0005] To make up for the above shortcomings, the utility model provides a kind of polyimide material double-screw recycling pelletizer, which aims to improve the problem that traditional equipment is difficult to realize efficient and uniform mixing of material, leading to unstable product quality.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A kind of polyimide material double-screw recycling granulator, including double-screw extruder, one side of the double-screw extruder is fixedly connected with water tank, one side of the water tank is provided with dehumidification blower device, one side of the dehumidification blower device is provided with granulator, one side of the granulator is fixedly connected with vibration device, the inner wall of the vibration device is fixedly connected with conveying belt, one side of the vibration device is fixedly connected with suction fan, the output end of the suction fan is fixedly connected with suction pipeline, one end of the suction pipeline is fixedly connected with storage mixer.

[0008] As further description of the above technical solution:

[0009] The double-screw extruder includes double-screw barrel, the bottom of the double-screw barrel is fixed with extruder base, one side of the extruder base is fixedly connected with oil pump, the top of the extruder base is fixedly connected with motor, the output end of the motor is fixedly connected with speed reducer, one side of the speed reducer is fixedly connected to the outer wall of the double-screw barrel, one side of the top of the double-screw barrel is fixedly connected with hopper three, and the outer wall of the double-screw barrel is fixedly connected with discharge die.

[0010] As further description of the above technical solution:

[0011] One side of the double-screw barrel is fixedly connected with feeder screw one and feeder screw two, one end of the feeder screw one and the feeder screw two is respectively fixedly connected with hopper one and hopper two, and the top of the hopper one and the hopper two is respectively fixedly connected with auxiliary discharging drive one and auxiliary discharging drive two.

[0012] As further description of the above technical solution:

[0013] The other side of the top of the double-screw barrel is fixedly connected with vacuum pump, and the other side of the double-screw barrel is fixedly connected with heating inlet pipeline and heating outlet pipeline.

[0014] As further description of the above technical solution:

[0015] A plurality of heating pipeline feed valves are fixedly connected in the heating outlet pipeline, and one side of each of the heating pipeline feed valves is fixedly connected with heating pipeline discharge valve.

[0016] As further description of the above technical solution:

[0017] The bottom of the water tank is fixedly connected with moving wheel, and the inside of the water tank is fixedly connected with a plurality of bridge devices.

[0018] As further description of the above technical solution:

[0019] The dehumidification blower device is composed of hair dryer and dehumidification dryer, and the dehumidification dryer is fixedly connected between the input end of the hair dryer.

[0020] As a further description of the above technical solution:

[0021] The storage mixer includes a storage tank, a drive motor is fixedly connected to one side of the storage tank, a feeding box and a discharge pipe are fixedly connected to the bottom of the storage tank, and a climbing staircase is fixedly connected to the outer wall of the storage mixer.

[0022] This utility model has the following beneficial effects:

[0023] In this invention, the material is mixed and heated by a twin-screw extruder, then cooled by a water tank, dehumidified by a dehumidifying blower, pelletized by a pelletizer, screened by a vibrating device, and finally stored by a storage mixer. Compared with traditional equipment, this invention offers significant improvements in high mixing efficiency, adaptability to high filling, modular design, and resistance to high temperature and pressure. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of a twin-screw recycling granulator for polyimide materials proposed in this utility model;

[0025] Figure 2 This is a schematic diagram of the planar structure of a twin-screw recycling granulator for polyimide materials proposed in this utility model;

[0026] Figure 3 for Figure 1 Enlarged structural diagram at point A in the diagram;

[0027] Figure 4 This is a schematic diagram of the twin-screw barrel structure of a twin-screw recycling granulator for polyimide materials proposed in this utility model;

[0028] Figure 5 This is a schematic diagram of the material storage mixer structure of a twin-screw recycling granulator for polyimide materials proposed in this utility model;

[0029] Figure 6 This is a schematic diagram of the vibration device structure of a twin-screw recycling granulator for polyimide materials proposed in this utility model;

[0030] Figure 7 This is a schematic diagram of the dehumidifying blowing device of a twin-screw recycling granulator for polyimide materials proposed in this utility model;

[0031] Figure 8 This is a schematic diagram of the water tank structure of a twin-screw recycling granulator for polyimide materials proposed in this utility model.

[0032] Legend:

[0033] 1, storage mixer; 2, feeding tank; 3, discharge pipe; 4, suction fan; 5, suction pipeline; 6, vibration device; 7, granulator; 8, dehumidification blowing device; 9, water tank; 10, discharge mold; 11, heating pipeline discharge valve; 12, heating pipeline feeding valve; 13, vacuum pump; 14, feeder screw one; 15, hopper one; 16, auxiliary discharging drive one; 17, auxiliary discharging drive two; 18, hopper two; 19, feeder screw two; 20, heating inlet pipeline; 21, extruder base; 22, oil pump; 23, double screw barrel; 24, motor; 25, speed reducer; 26, hopper three; 27, heating outlet pipeline; 28, drive motor; 29, storage tank; 30, crawling stairs; 31, conveyor belt; 32, blower; 33, dehumidification dryer; 34, bridge device; 35, moving wheel; 36, double screw extruder. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0035] Reference Figures 1-8The utility model provides an embodiment: a kind of polyimide material double-screw recycling granulator, including double-screw extruder 36, double-screw extruder 36 side is fixedly connected with water tank 9, water tank 9 is used to receive and cool the molten raw material from discharge die 10 extrusion, material is quickly shaped by water cooling mode, water tank 9 side is provided with dehumidification air blower 8, dehumidification air blower 8 is combined by the effect of hair dryer 32 and dehumidification dryer 33, remove the moisture on the surface of material, ensure the dryness of subsequent pelletizing and storage, dehumidification air blower 8 side is provided with pelletizer 7, pelletizer 7 is cut into uniform particle after cooling the strip material, facilitate subsequent processing and storage, pelletizer 7 side is fixedly connected with vibration device 6, vibration device 6 is screened by vibrating, separate unqualified large particle or fine powder, ensure the uniformity of material particle, the inner wall of vibration device 6 is fixedly connected with conveyer belt 31, conveyer belt 31 is conveyed to the next process after screening qualified particle, cooperate vibration device 6 to improve screening efficiency simultaneously, vibration device 6 side is fixedly connected with suction fan 4, suction fan 4 is inhaled into suction duct 5 by negative pressure effect qualified particle, realize the automatic conveying of particle, suction fan 4 output end is fixedly connected with suction duct 5, suction duct 5 is as the passage of particle conveying, connect vibration device 6 and storage agitator 1, ensure the dustless and efficient transfer of particle, suction duct 5 one end is fixedly connected with storage agitator 1, storage agitator 1 is used to temporarily store and stir particle, prevent particle caking, keep material loose, double-screw extruder 36 includes double-screw barrel 23, double-screw barrel 23 is the core component of extruder, realize the melting and mixing of raw material by the rotation of double screw, the bottom of double-screw barrel 23 is fixed extruder base 21, extruder base 21 provides stable support for the whole extruder, ensure that equipment runs smoothly, extruder base 21 side is fixedly connected with oil pump 22, oil pump 22 provides lubrication and hydraulic pressure for the moving parts of extruder, reduce wear and tear and ensure normal operation of equipment, extruder base 21 top is fixedly connected with motor 24, motor 24 is as power source, drive double screw rotation, produce shear force and friction to melt raw material, motor 24 output end is fixedly connected with speed reducer 25, speed reducer 25 adjusts the output speed of motor 24, ensure that double screw runs at appropriate speed, speed reducer 25 side is fixedly connected on the outer wall of double-screw barrel 23, double-screw barrel 23 top side is fixedly connected with hopper three 26, hopper three 26 is used to supplement additive or auxiliary raw material, enhance the mixing effect of material, the outer wall of double-screw barrel 23 is fixedly connected with discharge die 10, discharge die 10 is extruded into shape after melting and mixing raw material, form strip material to cool and pelletize subsequently, double-screw barrel 23 side is fixedly connected with feeder screw one 14 and feeder screw two 19, feeder screw one 14 and feeder screw two 19 convey raw material from hopper to double-screw barrel 23, ensure the continuous supply of raw material, feeder screw one 14 and feeder screw two 19 one end are fixedly connected with hopper one 15 and hopper two 18 respectively,The hopper one 15 and the hopper two 18 are used to store the recycled raw materials, and the preliminary supply of the raw materials is realized through gravity or auxiliary unloading drive, the top of the hopper one 15 and the hopper two 18 is fixedly connected with the auxiliary unloading drive one 16 and the auxiliary unloading drive two 17 respectively, the auxiliary unloading drive one 16 and the auxiliary unloading drive two 17 help the raw materials to smoothly enter the screw rod of the feeding machine, prevent the raw materials from being blocked or unevenly discharged, the top of the other side of the double screw barrel 23 is fixedly connected with the vacuum pump 13, the vacuum pump 13 is used to extract the air and volatile matters in the double screw barrel 23, prevent the material from being oxidized or generating bubbles, the other side of the double screw barrel 23 is fixedly connected with the heating inlet pipeline 20 and the heating outlet pipeline 27, the heating inlet pipeline 20 and the heating outlet pipeline 27 constitute the heating circulating component, provide stable heating temperature for the double screw barrel 23, ensure that the raw materials are fully melted, a plurality of heating pipeline feeding valves 12 are fixedly connected in the heating outlet pipeline 27, the heating pipeline feeding valves 12 control the inflow of the heating medium, adjust the temperature and flow of the heating component, the heating pipeline feeding valves 12 are fixedly connected with the heating pipeline discharge valves 11 on one side, the heating pipeline discharge valves 11 control the outflow of the heating medium, cooperate with the feeding valves to realize the balance of the heating component, the bottom of the water tank 9 is fixedly connected with the moving wheels 35, the moving wheels 35 facilitate the movement and positioning of the water tank 9, improve the flexibility and operability of the equipment, a plurality of bridge devices 34 are fixedly connected in the water tank 9, the bridge devices 34 support the cooled strip-shaped materials, prevent them from being deformed or broken in the water tank 9, the dehumidifying blowing device 8 is composed of the blower 32 and the dehumidifying dryer 33, the blower 32 provides wind power to blow dry the moisture on the surface of the materials, the dehumidifying dryer 33 further reduces the air humidity, ensures that the materials are completely dried, the dehumidifying dryer 33 is fixedly connected between the input ends of the blower 32, the storage mixer 1 includes the storage tank 29, the storage tank 29 is used to store the granular materials after being cut, and the granular materials are prevented from being agglomerated through stirring, the storage tank 29 is fixedly connected with the driving motor 28 on one side, the driving motor 28 provides power for the stirring component in the storage tank 29, ensures the uniform mixing of the granular materials, the bottom of the storage tank 29 is fixedly connected with the feeding box 2 and the discharge pipe 3, the feeding box 2 is used to supplement or take out the materials, the discharge pipe 3 facilitates the final output and packaging of the granular materials, the storage mixer 1 is fixedly connected with the crawling stairs 30 on the outer wall, the crawling stairs 30 provides a channel for the operator to check and maintain the storage mixer 1, ensures the safety and operability of the equipment.

[0036] Working principle: first polyimide recovery raw materials through the hopper one 15 and hopper two 18, under the action of auxiliary under the drive machine one 16 and auxiliary under the drive machine two 17, by the feeder screw one 14 and feeder screw two 19 are transported to the inside of double screw barrel 23, next through the motor 24 and speed reducer 25 drive double screw rotation generated shear force and friction, and heating into the pipeline 20 and heating out pipeline 27 provide the heat together under the action, make the raw materials gradually melt and mix evenly, and the oil pump 22 provides lubrication and other required pressure for the equipment, then heated mixed raw materials, through the inner wall of the discharge die 10 extrusion, and fall into the inside of the sink 9, using the water in the sink 9 inside the extruded material cooling, then through the air blower 32 and dehumidifying dryer 33 remove the moisture and humidity on the material surface, next use the granulator 7 will be cut into granular raw materials, and use the conveyor belt 31 to transport to the inside of the storage mixer 1, while moving, through the vibrating device 6 vibration screening granular material, unqualified large particles or fine powder are separated, qualified particles are transported to the inside of the storage tank 29 through the suction fan 4 and suction pipeline 5, while storing, through the drive motor 28 drive the stirring parts in the storage tank 29 inside the material particles are stirred, prevent material particles long time to place resulting in sticky agglomerate, ensure that the material particles keep loose, finally reached the equipment high mixing efficiency, adapt to high filling, modular design and high temperature and high pressure effect.

[0037] Finally, it should be noted that: the above only for the preferred embodiments of the present application have, and not for limiting the present application, although the foregoing detailed description of the present application is made with reference to the foregoing embodiments, for the person skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of protection of the present application.

Claims

1. A polyimide material twin-screw recycling pelletizer comprising a twin-screw extruder (36) characterized by: The double screw extruder (36) is fixedly connected with a water tank (9) on one side, the water tank (9) is provided with a dehumidifying air blower (8) on one side, the dehumidifying air blower (8) is provided with a granulator (7) on one side, the granulator (7) is fixedly connected with a vibrating device (6) on one side, the vibrating device (6) is fixedly connected with a conveying belt (31) on the inner wall, the vibrating device (6) is fixedly connected with a suction fan (4) on one side, the suction fan (4) is fixedly connected with a suction pipeline (5) at the output end, and the suction pipeline (5) is fixedly connected with a storage mixer (1) at one end.

2. A twin-screw recovery granulator for polyimide material according to claim 1, characterized in that: The double screw extruder (36) comprises a double screw barrel (23), the double screw barrel (23) is fixedly connected with an extruder base (21) at the bottom, the extruder base (21) is fixedly connected with an oil pump (22) on one side, the extruder base (21) is fixedly connected with a motor (24) at the top, the motor (24) is fixedly connected with a speed reducer (25) at the output end, the speed reducer (25) is fixedly connected with the outer wall of the double screw barrel (23) on one side, and the double screw barrel (23) is fixedly connected with a hopper three (26) on one side at the top.

3. A twin-screw recovery pelletizer of a polyimide material according to claim 2, characterized by: The double screw barrel (23) is fixedly connected with a feeder screw one (14) and a feeder screw two (19) on one side, the feeder screw one (14) and the feeder screw two (19) are respectively fixedly connected with a hopper one (15) and a hopper two (18) at one end, and the hopper one (15) and the hopper two (18) are respectively fixedly connected with an auxiliary discharging drive one (16) and an auxiliary discharging drive two (17) at the top.

4. The twin-screw recovery pelletizer of polyimide material according to claim 3, characterized in that: The double screw barrel (23) is fixedly connected with a vacuum pump (13) on the other side at the top, and the double screw barrel (23) is fixedly connected with a heating inlet pipeline (20) and a heating outlet pipeline (27) on the other side.

5. A twin-screw recovery granulator for polyimide material according to claim 4, characterized in that: The heating outlet pipeline (27) is fixedly connected with a plurality of heating pipeline feeding valves (12) inside, and each heating pipeline feeding valve (12) is fixedly connected with a heating pipeline discharging valve (11) on one side.

6. The twin-screw polymerization reactor of claim 1, wherein: The water tank (9) is fixedly connected with a moving wheel (35) at the bottom, and the water tank (9) is fixedly connected with a plurality of bridge devices (34) inside.

7. The twin-screw polymerization reactor of claim 1, wherein: The dehumidifying air blower (8) is composed of an air blower (32) and a dehumidifying dryer (33), and the dehumidifying dryer (33) is fixedly connected with the input end of the air blower (32).

8. The twin-screw polymerization reactor of claim 1, wherein: The storage mixer (1) comprises a storage tank (29), the storage tank (29) is fixedly connected with a driving motor (28) on one side, the storage tank (29) is fixedly connected with a feeding box (2) and a discharging pipe (3) at the bottom, and the storage mixer (1) is fixedly connected with a crawling staircase (30) on the outer wall.

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