Hydrolysis device and method for preparing modified polyamide fiber

Abstract

The invention belongs to the technical field of waste recovery, particularly relates to a hydrolysis device and method for preparing modified polyamide fibers, and aims to solve the problems that impurity grease exists on the surface of existing waste, the waste cannot be quickly cleaned through simple flushing and stirring, and the cleaning efficiency is reduced. The top of the supporting frame is provided with a rotating cylinder capable of being overturned in an inclined mode, the rotating cylinder is in a barrel shape, one end of the rotating cylinder is rotationally provided with a rotating disc, the other end of the rotating cylinder is rotationally provided with a conical head, and the inner wall of the rotating cylinder is provided with a plurality of grooves; the rubbing mechanism is arranged in the rotating cylinder, is matched with the groove for use and is used for rubbing the waste materials; according to the device, by designing the rotating cylinder capable of being overturned obliquely and the built-in rubbing mechanism, efficient rubbing and mixing of waste are achieved, meanwhile, a cleaning system composed of the water storage tank, the water pump and the spray pipe is used for conducting precise flushing on the waste, automatic operation of the driving assembly is achieved, and the waste discharging process is simplified.

Description

Technical Field

[0001] This invention relates to the field of waste recycling technology, and in particular to a hydrolysis apparatus and method for preparing modified polyamide fibers. Background Technology

[0002] Chemical recycling is a rapidly developing recycling method in recent years. Chemical recycling methods for polyamide include hydrolysis (acid hydrolysis, alkali hydrolysis), ammonolysis, vacuum depolymerization, catalytic cracking, and alcoholysis. With the emergence and development of green chemistry, recent research reports have documented polyamide recycling technologies such as supercritical (subcritical) fluid depolymerization, heteropolyacid catalytic hydrolysis, and depolymerization in ionic liquids. However, unclean polyamide 66 waste fibers must be washed with a dilute sodium carbonate solution to remove moisture before use.

[0003] However, existing cleaning methods usually involve rinsing and agitation. However, the impurities and grease on the surface of waste materials cannot be quickly cleaned by simple rinsing and agitation, thus reducing the cleaning efficiency. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies where impurities and greases on the surface of waste materials cannot be quickly cleaned by simple rinsing and stirring, resulting in reduced cleaning efficiency. Therefore, this invention proposes a hydrolysis device and method for preparing modified polyamide fibers.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A hydrolysis device for preparing modified polyamide fibers includes a support frame, the top of which is provided with a tiltable and rotatable rotating cylinder. The rotating cylinder is barrel-shaped, with a rotating disk rotatably provided at one end and a conical head rotatably provided at the other end. The inner wall of the rotating cylinder is provided with multiple grooves.

[0007] The kneading mechanism, located inside the rotating cylinder and used in conjunction with the groove, is used to knead waste materials.

[0008] A water storage tank is fixedly mounted on one side of a support frame. A water pump is provided on one side of the water storage tank. A spray pipe located inside the rotating cylinder is fixedly mounted through one side of the rotating disc. The water inlet of the water pump extends to an external cleaning agent container through a first connecting pipe. The water outlet of the water pump is connected to the spray pipe through a second connecting pipe for rinsing the waste material inside the rotating cylinder.

[0009] The drive assembly, located on the water storage tank, is used to drive the rotating drum to tilt and tumble, discharging the waste material after cleaning.

[0010] In one possible design, the kneading mechanism includes a screw rotatably mounted on one side of a rotating disk, one end of which is located inside a rotating cylinder. A nut block is threaded onto the outer wall of the screw, and a second electric push rod is fixedly mounted through the top of the nut block. The output end of the second electric push rod is elastically provided with a compression wheel for squeezing waste material. The nut block is slidably mounted on a nozzle via a slider and a groove. A second motor is fixedly mounted on one side of the rotating disk, and the output end of the second motor is fixedly connected to the screw.

[0011] In one possible design, the outer wall of the rotating cylinder is provided with filter holes corresponding to the grooves, and the outer wall of the rotating cylinder is fixed with baffles corresponding to the filter holes for blocking the cleaning agent.

[0012] In one possible design, two guide rods are slidably provided through the top of the nut block, and the bottom ends of the two guide rods are fixedly provided with the same mounting bracket. The extrusion wheel is disposed in the mounting bracket, and the outer wall of the guide rod is slidably fitted with the same sliding plate. The outer wall of the guide rod is fitted with a spring, and the two ends of the spring are respectively fixedly connected to the sliding plate and the mounting bracket on the side closer to each other. The output end of the second electric push rod is fixedly connected to the sliding plate.

[0013] In one possible design, the outer wall of the guide rod is fixedly fitted with a limiting ring located above the sliding plate.

[0014] In one possible design, the drive assembly includes a first electric push rod rotatably mounted on the inner wall of one side of the water storage tank, the output end of the first electric push rod being rotatably connected to the bottom end of the rotating disk, a rotating ring rotatably mounted inside the support frame, a rotating cylinder rotatably mounted inside the rotating ring, a fixing frame being fixedly mounted through one side of the conical head, the fixing frame being fixedly mounted at one end of the rotating ring, one end of the screw being rotatably connected through the fixing frame, and one end of the nozzle being fixedly connected through the fixing frame.

[0015] In one possible design, a toothed ring is fixedly fitted on the outer wall of the rotating cylinder, a first motor is fixedly fitted on the top of the rotating ring, a gear that meshes with the toothed ring is fixedly fitted on the output end of the first motor, and inclined surfaces are provided on both sides of the inner wall of the groove.

[0016] A method of using a hydrolysis apparatus for preparing modified polyamide fibers includes the following steps:

[0017] S1. First, the waste material is added into the rotating drum through the conical head, and then the water pump is started to pump the external cleaning agent into the rotating drum through the first connecting pipe and the second connecting pipe.

[0018] S2. Next, start the second electric push rod to drive the extrusion wheel to move downwards and extrude the waste material. At the same time, start the second motor to drive the extrusion wheel to move and continuously extrude the waste material.

[0019] S3. After squeezing for 10 seconds, start the second electric push rod to drive the squeezing wheel away from the waste material, and then start the first motor to drive the rotating drum to rotate, so that the waste material is turned over.

[0020] S4. Repeat step S2 to continue squeezing, while the cleaning agent sprayed into the rotating cylinder will be discharged into the water storage tank through the filter holes for collection.

[0021] S5. After cleaning, start the first electric push rod to extend and drive the rotating drum to tilt, pour out the waste material, and then carry out the drying and hydrolysis processes.

[0022] Beneficial effects:

[0023] In this invention, the hydrolysis device for preparing modified polyamide fibers, through the set kneading mechanism combined with multiple grooves on the inner wall of the rotating cylinder, achieves efficient cleaning of waste materials during the washing process, which not only promotes the refinement and dispersion of waste materials, but also improves the uniformity and efficiency of the hydrolysis reaction, thereby optimizing the preparation quality of modified polyamide fibers.

[0024] In this invention, the hydrolysis device for preparing modified polyamide fibers effectively removes impurities and residues from waste materials through a combination of a water storage tank and a water pump, as well as a precise spraying design using a nozzle. Simultaneously, this precise cleaning method reduces waste of cleaning agents, conserves water resources, lowers production costs, and also flushes out waste materials from the grooves, causing them to tumble and preventing accumulation.

[0025] In this invention, the hydrolysis device for preparing modified polyamide fibers is designed with a drive component that enables the tilting and flipping of the rotating cylinder, facilitating the automatic discharge of waste materials after cleaning, reducing manual intervention, and improving production efficiency.

[0026] In this invention, by designing a tiltable and tumbling rotating cylinder and a built-in kneading mechanism, efficient kneading and mixing of waste materials are achieved. At the same time, a cleaning system consisting of a water tank, a water pump, and a spray pipe is used to precisely rinse the waste materials. The automated operation of the drive components simplifies the waste discharge process. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural schematic diagram of a hydrolysis device for preparing modified polyamide fibers according to the present invention;

[0028] Figure 2 This is a three-dimensional structural schematic diagram of a hydrolysis device for preparing modified polyamide fibers proposed in this invention, from another perspective.

[0029] Figure 3This is a schematic cross-sectional view of the rotating cylinder of a hydrolysis device for preparing modified polyamide fibers according to the present invention.

[0030] Figure 4 This is a schematic axial cross-sectional view of the rotating cylinder of a hydrolysis device for preparing modified polyamide fibers according to the present invention.

[0031] Figure 5 This is a schematic diagram of the extrusion wheel mounting structure of a hydrolysis device for preparing modified polyamide fibers according to the present invention;

[0032] Figure 6 This is a schematic diagram of the support frame and rotating ring structure of a hydrolysis device for preparing modified polyamide fibers according to the present invention;

[0033] Figure 7 This is a schematic diagram of the conical head and fixing frame structure of a hydrolysis device for preparing modified polyamide fibers proposed in this invention.

[0034] In the diagram: 1. Water tank; 2. Support frame; 3. Rotating ring; 4. First motor; 5. Rotating cylinder; 6. Gear ring; 7. Gear; 8. Fixing frame; 9. Conical head; 10. First electric push rod; 11. Rotating disk; 12. Second motor; 13. Water pump; 14. First connecting pipe; 15. Second connecting pipe; 16. Baffle; 17. Groove; 18. Inclined surface; 19. Screw; 20. Spray pipe; 21. Nut block; 22. Extrusion wheel; 23. Guide rod; 24. Sliding plate; 25. Limiting ring; 26. Spring; 27. Mounting frame; 28. Second electric push rod. Detailed Implementation

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0036] Example 1

[0037] Reference Figures 1-7 A hydrolysis device includes: a support frame 2, a water storage tank 1, a rotating cylinder 5, a kneading mechanism, a drive assembly, etc.

[0038] First, the support frame 2 serves as the supporting structure for the entire device, and its top is equipped with a tiltable and rotatable rotating cylinder 5. The rotating cylinder 5 is barrel-shaped, with a rotating disk 11 rotatably mounted on one end via a bearing, and a conical head 9 rotatably mounted on the other end via a bearing, to facilitate the entry and exit of waste materials and the axial rotation of the device. The inner wall of the rotating cylinder 5 is evenly provided with multiple grooves 17 to increase the contact area between the waste materials and the kneading mechanism, thereby improving the kneading effect.

[0039] A kneading mechanism is housed within the rotating cylinder 5 and works in conjunction with the groove 17. Specifically, this mechanism includes a screw 19 that rotatably passes through one side of the rotating disk 11, with one end of the screw 19 located inside the rotating cylinder 5. A nut block 21 is threaded onto the outer wall of the screw 19, and a second electric push rod 28 is fixedly mounted through the top of the nut block 21. The output end of the second electric push rod 28 is elastically connected to a compression wheel 22 via an elastic connector (such as a spring or rubber pad) for kneading and compressing the waste material. The nut block 21 is slidably mounted on the nozzle 20 via a slider and groove structure to ensure its stability during movement and prevent the nut block 21 from rotating with the screw 19. A second motor 12 is fixedly mounted on one side of the rotating disk 11, and the output end of the second motor 12 is fixedly connected to the screw 19 to drive the screw 19 to rotate, thereby causing the nut block 21 and the compression wheel 22 to move axially within the rotating cylinder 5.

[0040] A water storage tank 1 is fixedly mounted on one side of the support frame 2 and is used to store cleaning agent. A water pump 13 is provided on one side of the water storage tank 1. The water inlet of the water pump 13 extends to an external cleaning agent container through a first connecting pipe 14 to draw cleaning agent. A spray pipe 20 located inside the rotating cylinder 5 is fixedly mounted through one side of the rotating disc 11. The nozzle of the spray pipe 20 faces the side groove 17. The drain end of the water pump 13 is connected to the spray pipe 20 through a second connecting pipe 15 to facilitate spraying the cleaning agent onto the waste material inside the rotating cylinder 5.

[0041] To further enhance the stability of the extrusion wheel 22, two guide rods 23 are slidably mounted through the top of the nut block 21. The bottom ends of the two guide rods 23 are fixedly mounted on the same mounting bracket 27, and the extrusion wheel 22 is housed within the mounting bracket 27. A sliding plate 24 is slidably fitted onto the outer wall of each guide rod 23, and a spring 26 is also fitted onto the outer wall of each guide rod 23. The two ends of the spring 26 are fixedly connected to the sliding plate 24 and the mounting bracket 27 on their respective adjacent sides. The output end of the second electric push rod 28 is fixedly connected to the sliding plate 24, so as to drive the mounting bracket 27 and the extrusion wheel 22 to move via the sliding plate 24 and the spring 26. Furthermore, a limiting ring 25 located above the sliding plate 24 is fixedly fitted onto the outer wall of the guide rod 23 to ensure that when the second electric push rod 28 retracts upwards, it can drive the guide rod 23 to move upwards.

[0042] A drive assembly is mounted on the water storage tank 1 to drive the rotating cylinder 5 to tilt and tumble, discharging the waste material after cleaning. Specifically, the assembly includes a first electric push rod 10 rotatably mounted on the inner wall of one side of the water storage tank 1. The output end of the first electric push rod 10 is rotatably connected to the bottom end of the rotating disk 11 via a hinge. Thus, when the first electric push rod 10 extends or retracts, it can drive the rotating disk 11 and the rotating cylinder 5 to tilt and tumble relative to the support frame 2, thereby discharging the waste material. A rotating ring 3 is rotatably mounted inside the support frame 2, and the rotating cylinder 5 is rotatably mounted inside the rotating ring 3. A fixing frame 8 is fixedly mounted through one side of the conical head 9, and the fixing frame 8 is fixedly mounted at one end of the rotating ring 3. One end of the screw 19 is rotatably connected through the fixing frame 8, and one end of the nozzle 20 is also fixedly connected through the fixing frame 8, so that it can support one end of the screw 19 and the nozzle 20.

[0043] This application can be used in the field of waste recycling, or in other fields applicable to this application.

[0044] Example 2

[0045] refer to Figures 1-7 An improvement based on Example 1: A hydrolysis device for preparing modified polyamide fibers, applied in the field of waste recycling. To improve the utilization rate of the cleaning agent and prevent its leakage, the outer wall of the rotating cylinder 5 is provided with filter holes corresponding to the groove 17, and a baffle 16 corresponding to the filter holes is fixedly provided. The baffle 16 can prevent the cleaning agent from being sprayed out of the filter holes.

[0046] To drive the rotation of the rotating cylinder 5, a gear ring 6 is fixedly fitted on the outer wall of the rotating cylinder 5, and a first motor 4 is fixedly fitted on the top of the rotating ring 3. A gear 7 that meshes with the gear ring 6 is fixedly fitted on the output end of the first motor 4, so as to drive the rotating cylinder 5 to rotate through gear transmission. In addition, both sides of the inner wall of the groove 17 are provided with inclined surfaces 18. When the rotating cylinder 5 rotates, the bottom groove 17 rotates sequentially. During the rotation, the waste material in the groove 17 can roll down through the inclined surfaces 18, which can realize the overturning of the waste material.

[0047] First, the waste material is added into the rotating drum 5 through the conical head 9. Then, the water pump 13 is started to pump the external cleaning agent into the rotating drum 5 through the first connecting pipe 14, the second connecting pipe 15 and the spray pipe 20.

[0048] Secondly, the second electric push rod 28 is activated to extend, which can drive the sliding plate 24 to move downward. During the downward movement of the sliding plate 24, the mounting frame 27 can be driven downward through the spring 26, which can drive the extrusion wheel 22 to move downward to extrude waste. At the same time, the second motor 12 is activated, which can drive the screw 19 to rotate. The rotation of the screw 19 can drive the nut block 21 to move. During the movement of the nut block 21, the mounting frame 27 can be driven to move through the two guide rods 23, which can drive the extrusion wheel 22 to move, continuously extruding the waste, realizing simultaneous rinsing and extrusion kneading.

[0049] After 10 seconds of compression, the second electric push rod 28 is activated to retract, causing the sliding plate 24 to move upward. The upward movement of the sliding plate 24 can abut against the limit ring 25, causing the guide rod 23 to move upward, thereby driving the extrusion wheel 22 away from the waste. Then, the first motor 4 is activated to rotate in the reverse direction, and the gear 7 rotates. During the rotation of the gear 7, the gear ring 6 can rotate forward, thereby driving the rotating cylinder 5 to rotate. During the rotation of the rotating cylinder 5, the waste can be moved upward through the groove 17 until the groove 17 containing the waste moves to correspond with the spray hole on the nozzle 20. The cleaning agent sprayed from the spray hole can wash the waste in the groove 17 off and fall into the groove 17 below, thereby causing the waste to turn over.

[0050] Repeat the above steps to continue squeezing, and the cleaning agent sprayed into the rotating cylinder 5 will be discharged into the water storage tank 1 through the filter holes for collection;

[0051] After cleaning, the first electric push rod 10 is activated to extend and drive the rotating cylinder 5 to tilt. During the tilting process, the waste material can slide slowly through the groove 17 and the conical head 9 until all the waste material is poured out. The poured-out waste material is then subjected to drying and hydrolysis processes.

[0052] However, as is well known to those skilled in the art, the working principles and wiring methods of the first motor 4, the first electric push rod 10, the second motor 12, the water pump 13, and the second electric push rod 28 are commonplace and belong to conventional methods or common knowledge. They will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0053] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A hydrolysis apparatus for preparing modified polyamide fibers, characterized in that, Includes a support frame (2), the top of which is provided with a tiltable and rotatable rotating cylinder (5), the rotating cylinder (5) is barrel-shaped, one end of which is provided with a rotating disk (11) and the other end is provided with a conical head (9), and the inner wall of the rotating cylinder (5) is provided with multiple grooves (17). The kneading mechanism is set inside the rotating cylinder (5) and used in conjunction with the groove (17) to knead waste materials; A water storage tank (1) is fixedly installed on one side of a support frame (2). A water pump (13) is provided on one side of the water storage tank (1). A spray pipe (20) located inside a rotating cylinder (5) is fixedly installed through one side of the rotating disk (11). The water inlet of the water pump (13) extends to an external cleaning agent container through a first connecting pipe (14). The drain of the water pump (13) is connected to the spray pipe (20) through a second connecting pipe (15) for rinsing the waste material inside the rotating cylinder (5). The drive assembly is installed on the water storage tank (1) to drive the rotating drum (5) to tilt and flip, and discharge the waste material after cleaning.

2. The hydrolysis apparatus for preparing modified polyamide fibers according to claim 1, characterized in that, The kneading mechanism includes a screw (19) that is rotatably mounted on one side of a rotating disk (11). One end of the screw (19) is located inside a rotating cylinder (5). A nut block (21) is threaded onto the outer wall of the screw (19). A second electric push rod (28) is fixedly mounted through the top of the nut block (21). The output end of the second electric push rod (28) is elastically provided with a compression wheel (22) for squeezing waste material. The nut block (21) is slidably mounted on a nozzle (20) via a slider and a groove. A second motor (12) is fixedly mounted on one side of the rotating disk (11). The output end of the second motor (12) is fixedly connected to the screw (19).

3. The hydrolysis apparatus for preparing modified polyamide fibers according to claim 1, characterized in that, The outer wall of the rotating cylinder (5) is provided with filter holes corresponding to the groove (17), and the outer wall of the rotating cylinder (5) is fixedly provided with baffles (16) corresponding to the filter holes for blocking the cleaning agent.

4. The hydrolysis apparatus for preparing modified polyamide fibers according to claim 2, characterized in that, Two guide rods (23) are slidably provided through the top of the nut block (21). The bottom ends of the two guide rods (23) are fixedly provided with the same mounting bracket (27). The extrusion wheel (22) is set inside the mounting bracket (27). The outer wall of the guide rods (23) is slidably fitted with the same sliding plate (24). The outer wall of the guide rods (23) is fitted with a spring (26). The two ends of the spring (26) are fixedly connected to the sliding plate (24) and the mounting bracket (27) respectively on the side close to each other. The output end of the second electric push rod (28) is fixedly connected to the sliding plate (24).

5. The hydrolysis apparatus for preparing modified polyamide fibers according to claim 4, characterized in that, The outer wall of the guide rod (23) is fixedly fitted with a limiting ring (25) located above the sliding plate (24).

6. The hydrolysis apparatus for preparing modified polyamide fibers according to claim 2, characterized in that, The drive assembly includes a first electric push rod (10) rotatably mounted on the inner wall of one side of the water storage tank (1). The output end of the first electric push rod (10) is rotatably connected to the bottom end of the rotating disk (11). A rotating ring (3) is rotatably mounted inside the support frame (2). The rotating cylinder (5) is rotatably mounted inside the rotating ring (3). A fixing frame (8) is fixedly mounted through one side of the conical head (9). The fixing frame (8) is fixedly mounted at one end of the rotating ring (3). One end of the screw (19) is rotatably connected through the fixing frame (8). One end of the nozzle (20) is fixedly connected through the fixing frame (8).

7. The hydrolysis apparatus for preparing modified polyamide fibers according to claim 6, characterized in that, The outer wall of the rotating cylinder (5) is fixedly fitted with a toothed ring (6), the top of the rotating ring (3) is fixedly fitted with a first motor (4), the output end of the first motor (4) is fixedly fitted with a gear (7) that meshes with the toothed ring (6), and the inner walls on both sides of the groove (17) are provided with inclined surfaces (18).

8. A method of using the hydrolysis apparatus for preparing modified polyamide fibers according to any one of claims 1-7, characterized in that, Includes the following steps: S1. First, the waste material is added into the rotating drum (5) through the conical head (9), and then the water pump (13) is started to pump the external cleaning agent into the rotating drum (5) through the first connecting pipe (14) and the second connecting pipe (15). S2. Next, start the second electric push rod (28) to drive the extrusion wheel (22) to move downward to extrude the waste material, and at the same time start the second motor (12) to drive the extrusion wheel (22) to move and continuously extrude the waste material; S3. After squeezing for 10 seconds, start the second electric push rod (28) to drive the extrusion wheel (22) away from the waste material, and then start the first motor (4) to drive the rotating drum (5) to rotate, so that the waste material is turned over. S4. Repeat step S2 to continue squeezing, while the cleaning agent sprayed into the rotating cylinder (5) will be discharged into the water storage tank (1) through the filter hole for collection; S5. After cleaning, start the first electric push rod (10) to extend and drive the rotating cylinder (5) to tilt, pour out the waste material, and then carry out the drying and hydrolysis process.

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