Centrifugal machine for processing polyamide powder

Abstract

The utility model discloses a centrifugal machine for processing polyamide powder, and relates to the technical field of centrifugal machines. The centrifugal machine for polyamide powder processing comprises a shell, a rotating disc is rotationally connected to the upper end of the inner wall of the shell, a filter barrel is fixed to the bottom face of the rotating disc, a filter bag is arranged on the inner side of the filter barrel, and the bottom of the filter bag is fixed to the bottom face of the inner wall of the filter barrel; according to the centrifugal machine for polyamide powder processing, the drying assembly is arranged on the shell, after centrifugation is finished and filtrate is discharged, a cover plate can be turned over to close the cover plate on the top of the rotary disc, then hot air is introduced into the inner side of a filter bag in a filter barrel, and therefore powder in the filter bag can be heated and dried; and the powder does not need to be transferred out of the filter bag and then dried, so that the operation steps are greatly saved, the dried powder is easier to separate from the filter bag, and the waste of the powder is reduced.

Description

Technical Field

[0001] This utility model relates to the field of centrifuge technology, specifically to a centrifuge for processing polyamide powder. Background Technology

[0002] The preparation of polyamide powder usually involves the use of solvents. Centrifugation can effectively separate solid polyamide powder from liquid solvents, which facilitates subsequent drying and grinding processes.

[0003] A centrifuge suitable for modified polyamide processing, disclosed in patent application CN220559519U, belongs to the field of centrifuge technology. It includes a motor, a connecting seat on the motor, a housing fixedly connected to the connecting seat, a liquid-blocking cover on the top of the housing, a feed pipe on the liquid-blocking cover, an outer shell on the outside of the housing, the outer shell fixedly connected to the motor, a cover on the top of the outer shell, the feed pipe passing through the cover and fixedly connected to the cover, and a discharge port at the bottom of the housing. This invention provides a centrifuge suitable for modified polyamide processing that solves the problems of low efficiency and potential impact on centrifugation performance caused by manual feeding and unloading in existing technologies.

[0004] As shown in the prior art, after completing the solid-liquid separation of polyamide, the centrifuge in the prior art usually needs to remove the filtered solid powder from the centrifuge for separate drying. The drying process is complicated, and the wet raw material is easy to leave a lot of residue when it is taken out of the filter bag of the centrifuge, which results in waste.

[0005] Therefore, it is necessary to provide a centrifuge for processing polyamide powder to solve the above-mentioned technical problems. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] To solve the above-mentioned technical problems, this utility model provides a centrifuge for processing polyamide powder.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model is implemented through the following technical solution: a centrifuge for processing polyamide powder, including a shell, a turntable rotatably connected to the upper end of the inner wall of the shell, a filter bucket fixed to the bottom surface of the turntable, a filter bag provided inside the filter bucket, the bottom of the filter bag being fixed to the bottom surface of the inner wall of the filter bucket, and the top of the filter bag being fixed to the bottom surface of the turntable.

[0010] A cover plate is rotatably mounted on the top of the outer shell. When the cover plate is directly above the turntable, it closes the center opening of the turntable. A drying component for introducing hot air into the filter bag for drying is fixed on the cover plate. A rotating component for driving the turntable to rotate is fixed on the upper end of the outer wall of the outer shell.

[0011] Preferably, the drying assembly includes a hot air blower fixed to the upper part of the outer wall of the housing, an annular pipe is provided above the cover plate, and a number of outlet pipes are fixed at equal angles at the bottom of the annular pipe. The outlet pipes are fixed to the cover plate and extend to the bottom of the cover plate. The air outlet of the hot air blower is connected to the air inlet of the annular pipe through a flexible hose.

[0012] Preferably, the rotating assembly includes a motor fixed on the outer wall of the upper end of the housing, on the side opposite to the hot air blower. Synchronous pulleys are fixed on the output end of the motor and on the outer wall of the upper end of the turntable, and a synchronous belt is connected between the two synchronous pulleys.

[0013] Preferably, the diameter of the synchronous pulley at the motor output end is smaller than the diameter of the synchronous pulley at the upper end of the turntable.

[0014] Preferably, the filter barrel consists of an upper cylinder fixed to the bottom surface of the turntable and a lower cylinder slidably sleeved on the outer side of the lower end of the upper cylinder. The bottom of the filter bag is fixed to the inner wall of the bottom of the lower cylinder. The bottom surface of the outer shell is also fixed with a lifting assembly that drives the lower cylinder to move up and down repeatedly. The reciprocating movement of the lower cylinder exerts pressure on the filter bag.

[0015] Preferably, a sliding groove is provided on the outer wall of the upper cylinder, and a sliding strip is fixed on the inner wall of the lower cylinder, the sliding strip being slidably inserted into the inner side of the sliding groove.

[0016] Preferably, the lifting assembly includes an electric telescopic rod fixed to the bottom surface of the housing. The extended end of the electric telescopic rod is fixed with a slide rod. The slide rod is slidably connected to the bottom wall of the housing through a sliding seal. The upper end of the slide rod extends through the bottom wall of the housing to the inner side of the housing. The axis of the slide rod, the axis of the housing, and the axis of the lower cylinder coincide. The upper end of the slide rod is rotatably connected to the bottom surface of the lower cylinder through a bearing.

[0017] (III) Beneficial Effects

[0018] This invention provides a centrifuge for processing polyamide powder. Compared with the prior art, it has the following advantages:

[0019] 1. This application arranges a drying component on the outer shell. After the filtrate is discharged after centrifugation, the cover plate can be closed on the top of the turntable by flipping it over. Then, hot air is introduced into the inside of the filter bag in the filter bucket, thereby heating and drying the powder in the filter bag. There is no need to transfer the powder out of the filter bag for drying, which greatly saves operation steps. Moreover, the dried powder is easier to separate from the filter bag, reducing powder waste.

[0020] 2. This application, through its layered filter barrel structure and the accompanying lifting component, enables the lower barrel to be pushed back and forth during drying. This causes the inner filter bags to be compressed and bent, which facilitates the separation of the powder from the filter bags. The powder is then pushed up and down by the lifting component inside the filter bags, thus allowing the powder to be dried more thoroughly and improving the drying effect. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram showing the positional relationship between the filter bag and the filter barrel of this utility model;

[0023] Figure 3 This is a schematic diagram of the structure of Embodiment 2 of this utility model;

[0024] Figure 4 This is a schematic diagram showing the positional relationship between the upper and lower cylinders of this utility model.

[0025] The following components are labeled in the diagram: 1. Outer shell; 2. Turntable; 3. Filter barrel; 4. Filter bag; 5. Cover plate; 6. Drying assembly; 601. Hot air blower; 602. Ring pipe; 603. Outlet pipe; 604. Hose; 7. Rotating assembly; 701. Motor; 702. Synchronous pulley; 703. Synchronous belt; 8. Upper cylinder; 9. Lower cylinder; 10. Lifting assembly; 1001. Electric telescopic rod; 1002. Slide rod; 11. Slide groove; 12. Slide bar. Detailed Implementation

[0026] 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.

[0027] Example 1, please refer to Figures 1 to 2 This embodiment provides a centrifuge for processing polyamide powder, including a shell 1, a turntable 2 rotatably connected to the upper end of the inner wall of the shell 1, a filter barrel 3 fixed to the bottom surface of the turntable 2, a filter bag 4 disposed inside the filter barrel 3, the bottom of the filter bag 4 being fixed to the bottom surface of the inner wall of the filter barrel 3, and the top of the filter bag 4 being fixed to the bottom surface of the turntable 2. The filter bag 4 is placed inside the filter barrel 3. After the raw material is fed into the filter bag 4 through the opening in the center of the turntable 2, the weight of the raw material is relatively heavy, which will put pressure on the filter bag 4. This structure can use the filter barrel 3 to support the filter bag 4, which can effectively intercept the powder and perform liquid filtration and drying while reducing the probability of damage to the filter bag 4.

[0028] A cover plate 5 is rotatably mounted on the top of the outer casing 1. When the cover plate 5 is directly above the turntable 2, it closes the central opening of the turntable 2. A hot air blower 601 is fixed to the upper end of the outer wall of the outer casing 1. A ring pipe 602 is provided above the cover plate 5. Several outlet pipes 603 are fixed at equal angles at the bottom of the ring pipe 602. The outlet pipes 603 are fixed to the cover plate 5 and extend to the bottom of the cover plate 5. The air outlet of the hot air blower 601 is connected to the air inlet of the ring pipe 602 through a flexible hose 604. After the raw material in the filter bag 4 is spun dry and drained, the outer... The filtrate outlet at the bottom of shell 1 is opened to discharge the filtrate. The filtrate outlet is kept open. Then, the cover plate 5 is flipped to close the opening at the center of the turntable 2. Then, the hot air blower 601 is turned on to introduce hot air into the hose 604, into the ring pipe 602, and into the filter bag 4 below the cover plate 5 through several outlet pipes 603 to dry the powder inside the filter bag 4. The hot air carrying moisture is discharged from the filtrate outlet at the bottom of shell 1. This cycle is repeated to carry out the drying process.

[0029] A motor 701 is fixed on the outer wall of the upper part of the outer casing 1, away from the hot air blower 601. A synchronous pulley 702 is fixed on the output end of the motor 701 and the outer wall of the upper part of the turntable 2. A synchronous belt 703 is connected between the two synchronous pulleys 702. The diameter of the synchronous pulley 702 at the output end of the motor 701 is smaller than the diameter of the synchronous pulley 702 at the upper part of the turntable 2. The centrifugal drying of the filtrate is achieved by driving the motor 701 to drive the synchronous pulley 702 to rotate, which in turn causes the turntable 2 to rotate, causing the filter bucket 3 to rotate at high speed to dry the water in the powder. The water is stored at the bottom inside the outer casing 1 after passing through the filter bucket 3, and finally discharged from the filtrate outlet.

[0030] In summary, since the drying component 6 is arranged on the outer shell 1, after the filtrate is discharged after centrifugation, the cover plate 5 can be closed on the top of the turntable 2 by flipping the cover plate 5. Then, hot air is introduced into the inside of the filter bag 4 in the filter bucket 3, so that the powder in the filter bag can be heated and dried. There is no need to transfer the powder out of the filter bag 4 for drying, which greatly saves operation steps. Moreover, the dried powder is easier to separate from the filter bag 4, reducing powder waste.

[0031] Example 2, please refer to Figures 3 to 4 This embodiment provides a further technical solution based on embodiment one. The filter barrel 3 consists of an upper cylinder 8 fixed to the bottom surface of the turntable 2 and a lower cylinder 9 slidably sleeved on the outer side of the lower end of the upper cylinder 8. A sliding groove 11 is provided on the outer wall of the upper cylinder 8, and a sliding strip 12 is fixed on the inner wall of the lower cylinder 9. The sliding strip 12 is slidably inserted into the inner side of the sliding groove 11. The bottom of the filter bag 4 is fixed to the bottom inner wall of the lower cylinder 9.

[0032] In normal spin-drying state, the bottom of the slide bar 12 abuts against the bottom wall of the slide groove 11, so that the lower cylinder 9 is suspended below the upper cylinder 8. The slide bar 12 and the slide groove 11 are designed so that the upper cylinder 8 and the lower cylinder 9 can only slide up and down, and there will be no relative rotation between them.

[0033] An electric telescopic rod 1001 is fixed on the bottom surface of the outer casing 1. A sliding rod 1002 is fixed to the extended end of the electric telescopic rod 1001. The sliding rod 1002 is slidably connected to the bottom wall of the outer casing 1 through a sliding seal. The upper end of the sliding rod 1002 extends through the bottom wall of the outer casing 1 to the inner side of the outer casing 1. The axis of the sliding rod 1002, the axis of the outer casing 1, and the axis of the lower cylinder 9 coincide. The upper end of the sliding rod 1002 is rotatably connected to the bottom surface of the lower cylinder 9 through a bearing.

[0034] During the powder drying process, the electric telescopic rod 1001 is activated, causing the slide rod 1002 to slide up and down repeatedly, thereby pushing the lower cylinder 9 to slide up and down, pressing the filter bag 4 on the inner side, causing the filter bag 4 to deform and wrinkle. The disturbance of the filter bag 4 facilitates the separation of the powder from the filter bag 4. The separated powder is deposited on the lower inner side of the filter bag 4, and the up and down shaking can make the powder tumble up and down, which is conducive to thorough drying and improves the drying effect.

[0035] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] 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. A centrifuge for processing polyamide powder, comprising a shell (1), characterized in that, The upper end of the inner wall of the outer shell (1) is rotatably connected to a turntable (2), a filter barrel (3) is fixed on the bottom surface of the turntable (2), a filter bag (4) is provided inside the filter barrel (3), the bottom of the filter bag (4) is fixed to the bottom surface of the inner wall of the filter barrel (3), and the top of the filter bag (4) is fixed to the bottom surface of the turntable (2). A cover plate (5) is rotatably installed on the top of the outer shell (1). When the cover plate (5) is directly above the turntable (2), it closes the central opening of the turntable (2). A drying assembly (6) for introducing hot air into the filter bag (4) for drying is fixed on the cover plate (5). A rotating assembly (7) for driving the turntable (2) to rotate is fixed on the upper end of the outer wall of the outer shell (1).

2. The centrifuge for processing polyamide powder according to claim 1, characterized in that: The drying assembly (6) includes a hot air blower (601) fixed to the upper end of the outer wall of the outer shell (1). A ring pipe (602) is provided above the cover plate (5). Several outlet pipes (603) are fixed at equal angles at the bottom of the ring pipe (602). The outlet pipes (603) are fixed to the cover plate (5) and extend through to the bottom of the cover plate (5). The air outlet of the hot air blower (601) is connected to the air inlet of the ring pipe (602) through a flexible hose (604).

3. The centrifuge for processing polyamide powder according to claim 2, characterized in that: The rotating assembly (7) includes a motor (701) fixed on the outer wall of the upper end of the housing (1) away from the hot air blower (601). The output end of the motor (701) and the outer wall of the upper end of the turntable (2) are both fixed with synchronous pulleys (702). A synchronous belt (703) is connected between the two synchronous pulleys (702).

4. The centrifuge for processing polyamide powder according to claim 3, characterized in that: The diameter of the synchronous pulley (702) at the output end of the motor (701) is smaller than the diameter of the synchronous pulley (702) at the upper end of the turntable (2).

5. A centrifuge for processing polyamide powder according to claim 1, characterized in that: The filter barrel (3) consists of an upper cylinder (8) fixed to the bottom surface of the turntable (2) and a lower cylinder (9) slidably sleeved on the outer side of the lower end of the upper cylinder (8). The bottom of the filter bag (4) is fixed to the bottom inner wall of the lower cylinder (9). The bottom surface of the outer shell (1) is also fixed with a lifting assembly (10) that drives the lower cylinder (9) to move up and down repeatedly. The reciprocating movement of the lower cylinder (9) puts pressure on the filter bag (4).

6. A centrifuge for processing polyamide powder according to claim 5, characterized in that: A sliding groove (11) is provided on the outer wall of the upper cylinder (8), and a sliding strip (12) is fixed on the inner wall of the lower cylinder (9). The sliding strip (12) is slidably inserted into the inner side of the sliding groove (11).

7. A centrifuge for processing polyamide powder according to claim 6, characterized in that: The lifting assembly (10) includes an electric telescopic rod (1001) fixed on the bottom surface of the outer shell (1). The extended end of the electric telescopic rod (1001) is fixed with a slide rod (1002). The slide rod (1002) is slidably connected to the bottom wall of the outer shell (1) through a sliding seal. The upper end of the slide rod (1002) extends through the bottom wall of the outer shell (1) to the inner side of the outer shell (1). The axis of the slide rod (1002), the axis of the outer shell (1), and the axis of the lower cylinder (9) coincide. The upper end of the slide rod (1002) is rotatably connected to the bottom surface of the lower cylinder (9) through a bearing.

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