Polypropylene particle cleaning and drying device

Abstract

The utility model provides a polypropylene particle cleaning and drying device, which relates to the field of cleaning and drying devices and comprises an outer barrel, an inner barrel is rotatably connected to the inner side of the outer barrel, a plurality of through holes are formed in the side wall and the bottom wall of the inner barrel, and a lifting device is mounted on the outer barrel. An outer pipe with the closed bottom is fixedly installed at the lifting end of the lifting device, a plurality of rows of stirring rods are fixedly connected to the outer pipe, a plurality of rows of outer vent holes are formed in the outer pipe, an inner pipe with the closed bottom is rotationally connected to the inner side of the outer pipe, a plurality of rows of inner vent holes are formed in the inner pipe, and the outer vent holes correspond to the inner vent holes. According to the cleaning and drying device for the polypropylene particles, the polypropylene particles are conveniently dried through centrifugal force, in addition, hot air is exhausted from the inner vent holes and the outer vent holes through the top end of the inner pipe to act on the polypropylene particles, the drying speed of the polypropylene is increased, and finally the mounting frame is driven by the electric cylinder to move upwards. The polypropylene particles in the inner barrel can be conveniently taken out.

Description

Technical Field

[0001] The utility model relates to the field of cleaning and drying devices, in particular to a cleaning and drying device for polypropylene particles. Background Art

[0002] Polypropylene particles (PP particles for short) are small granular substances made of polypropylene polymer materials. Polypropylene is a non-toxic, odorless, tasteless milky white waxy solid particles, commonly known as "100-fold glue". As a thermoplastic resin, polypropylene has excellent physical and chemical properties, such as good stress cracking resistance, high bending fatigue life, light weight, good toughness, good chemical resistance, etc. In addition, it has the best heat resistance among general plastics, with a heat deformation temperature of 80~100℃. It can be boiled in boiling water, and can also work for a long time at 100℃. Even when there is no external force, it will not deform even if it is heated to 150℃.

[0003] Cleaning polypropylene particles can remove pollutants and residues on the surface of polypropylene particles, thereby improving their purity. High-purity polypropylene particles can ensure that the produced plastic products have better physical and chemical properties, such as higher strength, better corrosion resistance, better heat resistance, etc. After cleaning, drying operations are required.

[0004] After the polypropylene particles are dried, they need to be dried. When drying the polypropylene particles, the existing cleaning and drying devices for polypropylene particles generally directly introduce hot air into the cleaned polypropylene particles to dry the surface of the polypropylene particles by the hot air. However, this drying method is relatively simple, resulting in a long time for drying the polypropylene.

[0005] Therefore, it is necessary to provide a new polypropylene particle cleaning and drying device to solve the above technical problems. Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides a polypropylene particle cleaning and drying device.

[0007] The polypropylene particle cleaning and drying device provided by the utility model comprises an outer barrel, the inner side of the outer barrel is rotatably connected to the inner side of the outer barrel, a plurality of through holes are provided on the side wall and the bottom wall of the inner barrel, a lifting device is installed on the outer barrel, an outer tube with a closed bottom is fixedly installed on the lifting end of the lifting device, a plurality of rows of stirring rods are fixedly connected to the outer tube, and a plurality of rows of external ventilation holes are provided on the outer tube, an inner side of the outer tube is rotatably connected to the inner side of the outer tube, a plurality of rows of internal ventilation holes are provided on the inner tube, and the plurality of external ventilation holes are correspondingly arranged with the plurality of internal ventilation holes.

[0008] Preferably, a motor is fixedly mounted on the outer barrel, a pinion is fixedly connected to the output end of the motor, a large gear is movably sleeved on the outer barrel, the large gear is meshed with the small gear, a plurality of brackets are fixedly mounted on the large gear, and one end of the bracket is fixedly connected to the top of the inner barrel.

[0009] Preferably, a support column is provided at the bottom of the inner barrel, the support column is rotatably connected to the inner barrel, and the bottom of the support column is fixedly connected to the bottom wall of the inner cavity of the outer barrel.

[0010] Preferably, the lifting device includes a mounting frame and two electric cylinders, the two electric cylinders are respectively fixedly connected to the two sides of the outer barrel, the telescopic ends of the two electric cylinders are commonly fixedly connected to the mounting frame, the mounting frame is an inverted U-shaped structure, and the outer surface of the outer tube is fixedly connected to the inner wall of the through hole opened at the top center of the mounting frame.

[0011] Preferably, the inner wall of the outer tube adjacent to the top is rotatably connected to the inner tube.

[0012] Preferably, an L-shaped fixing frame is provided on the inner tube, the fixing frame is fixedly connected to the outer surface of the inner tube, a bolt is threadedly connected to the fixing frame, and two limiting grooves are provided on the outer surface of the outer tube, and the ends of the bolts can be moved into the limiting grooves.

[0013] Preferably, the bottom of the outer barrel is fixedly connected to a water outlet, a valve is installed at the water outlet, and a plurality of supporting legs are fixedly installed on the outside of the outer barrel.

[0014] Preferably, the plurality of rows of stirring rods are distributed circumferentially along the outer surface of the outer tube, and the stirring rods in two adjacent rows are staggered up and down.

[0015] Compared with the related art, the polypropylene particle cleaning and drying device provided by the utility model has the following beneficial effects:

[0016] The bolt is rotated to move one end of the bolt out of the limiting groove, and the inner tube is rotated to make the multiple external vents face the multiple internal vents respectively. The top of the inner tube is connected to an external hot air source, and the motor is started again. At this time, the rotation speed of the inner barrel is accelerated, and the polypropylene particles are dried conveniently through centrifugal force. In addition, the hot air is discharged from the internal vents and the external vents through the top of the inner tube to act on the polypropylene particles, thereby accelerating the drying speed of the polypropylene. After the operation is completed, the mounting frame is driven upward by the electric cylinder, so as to facilitate the removal of the polypropylene particles in the inner barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the polypropylene particle cleaning and drying device provided by the utility model;

[0018] Figure 2 for Figure 1 A schematic cross-sectional view of the structure shown;

[0019] Figure 3 for Figure 1 A schematic diagram of a local structure of the structure shown;

[0020] Figure 4 for Figure 3 A schematic diagram of the decomposed structure of the structure shown.

[0021] Numbers in the figure: 1. Outer barrel; 2. Inner barrel; 3. Outer tube; 4. Inner tube; 5. Stirring rod; 6. Outer vent; 7. Inner vent; 8. Large gear; 9. Bracket; 10. Motor; 11. Small gear; 12. Support column; 13. Electric cylinder; 14. Mounting frame; 15. Fixing frame; 16. Limiting groove; 17. Water outlet; 18. Support leg. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0023] Please refer to Figure 1-Figure 4 ,in, Figure 1 This is a schematic diagram of the structure of the polypropylene particle cleaning and drying device provided by the utility model; Figure 2 for Figure 1 A schematic cross-sectional view of the structure shown; Figure 3 for Figure 1 A schematic diagram of a local structure of the structure shown; Figure 4 for Figure 3 A schematic diagram of the decomposed structure of the structure shown.

[0024] In the specific implementation process, Figure 1-Figure 4 As shown, it includes an outer barrel 1, an inner barrel 2 is rotatably connected to the inner side of the outer barrel 1, a plurality of through holes are provided on the side wall and the bottom wall of the inner barrel 2, a lifting device is installed on the outer barrel 1, an outer tube 3 with a closed bottom is fixedly installed on the lifting end of the lifting device, a plurality of rows of stirring rods 5 are fixedly connected to the outer tube 3, the plurality of rows of stirring rods 5 are circumferentially distributed along the outer surface of the outer tube 3, and two adjacent rows of stirring rods 5 are staggered up and down, and a plurality of rows of external vents 6 are provided on the outer tube 3, an inner tube 4 with a closed bottom is rotatably connected to the inner side of the outer tube 3, the inner wall of the outer tube 3 near the top is rotatably connected to the inner tube 4, a plurality of rows of internal vents 7 are provided on the inner tube 4, and a plurality of external vents 6 are correspondingly arranged with a plurality of internal vents 7, and centrifugal drying is performed while hot air drying is performed, which shortens the drying time of polypropylene particles to a certain extent;

[0025] A motor 10 is fixedly installed on the outer barrel 1, and a pinion 11 is fixedly connected to the output end of the motor 10. A large gear 8 is movably sleeved on the outer barrel 1, and the large gear 8 is meshed with the small gear 11. A plurality of brackets 9 are fixedly installed on the large gear 8, and one end of the bracket 9 is fixedly connected to the top of the inner barrel 2. A support column 12 is provided at the bottom of the inner barrel 2, and the support column 12 is rotatably connected to the inner barrel 2. The bottom of the support column 12 is fixedly connected to the bottom wall of the inner cavity of the outer barrel 1. The motor 10 is started, and the small gear 11 is driven to rotate by the rotation of the output end of the motor 10. Since the small gear 11 and the large gear 8 are in a mutually meshing relationship, the large gear 8 rotates under the action of the small gear 11. When the large gear 8 rotates, the inner barrel 2 is driven to rotate through the plurality of brackets 9. When the inner barrel 2 rotates, the polypropylene particles on the inner side of the inner barrel 2 are driven to rotate. At this time, the plurality of stirring rods 5 are in a stationary state, and the polypropylene particles and the plurality of stirring rods 5 move relative to each other. The stirring rods 5 play a role in stirring the polypropylene particles, so that the polypropylene particles can be more fully cleaned;

[0026] The lifting device includes a mounting frame 14 and two electric cylinders 13. The two electric cylinders 13 are respectively fixedly connected to the two sides of the outer barrel 1. The telescopic ends of the two electric cylinders 13 are fixedly connected to the mounting frame 14. The mounting frame 14 is an inverted U-shaped structure. The outer surface of the outer tube 3 is fixedly connected to the inner wall of the through hole opened at the top center of the mounting frame 14. The telescopic end of the electric cylinder 13 drives the mounting frame 14 to move downward, so that the multiple stirring rods 5 can be moved into the inner barrel 2.

[0027] An L-shaped fixing frame 15 is provided on the inner tube 4, and the fixing frame 15 is fixedly connected to the outer surface of the inner tube 4. Bolts are threadedly connected to the fixing frame 15. Two limiting grooves 16 are provided on the outer surface of the outer tube 3. The ends of the bolts can be moved into the limiting grooves 16. The bolts are rotated so that one end of the bolts is moved out of the limiting grooves 16. The inner tube 4 is rotated so that the multiple outer vents 6 are respectively opposite to the multiple inner vents 7. The top of the inner tube 4 is connected to an external hot air source, and the motor 10 is started again. At this time, the rotation speed of the inner barrel 2 is accelerated, and the polypropylene particles are dried conveniently by centrifugal force. In addition, the hot air is discharged from the inner vents 7 and the outer vents 6 through the top of the inner tube 4 to act on the polypropylene particles, thereby accelerating the drying speed of the polypropylene.

[0028] The bottom of the outer barrel 1 is fixedly connected with a water outlet 17 , a valve is installed at the water outlet 17 , and a plurality of supporting legs 18 are fixedly installed outside the outer barrel 1 .

[0029] The working principle provided by the utility model is as follows: when the device is used, water is injected into the inner barrel 2, and polypropylene particles are poured into the inner barrel 2. The telescopic end of the electric cylinder 13 is extended and retracted to drive the mounting frame 14 to move downward, so that the multiple stirring rods 5 can be moved into the inner barrel 2. Then, the motor 10 is started, and the small gear 11 is driven to rotate by the rotation of the output end of the motor 10. Since the small gear 11 and the large gear 8 are in a mutually meshing relationship, the large gear 8 rotates under the action of the small gear 11. When the large gear 8 rotates, the inner barrel 2 is driven to rotate through the multiple brackets 9. When the inner barrel 2 rotates, the polypropylene particles inside the inner barrel 2 are driven to rotate. At this time, the multiple stirring rods 5 are in a stationary state, and the polypropylene particles and the multiple stirring rods 5 move relative to each other. The stirring rods 5 play a role in stirring the polypropylene. The stirring effect of the olefin particles allows the polypropylene particles to be cleaned more fully. After cleaning, the motor 10 is turned off, and the water in the inner barrel 2 flows out through the through hole of the inner barrel 2 through the water outlet 17, and then flows out from the water outlet 17. Then, the bolt is rotated so that one end of the bolt moves out from the limiting groove 16, and the inner tube 4 is rotated so that the multiple external air holes 6 are respectively opposite to the multiple internal air holes 7. The top of the inner tube 4 is connected to an external hot air source, and the motor 10 is started again. At this time, the rotation speed of the inner barrel 2 is accelerated, and the polypropylene particles are dried conveniently by centrifugal force. In addition, the hot air is discharged from the internal air holes 7 and the external air holes 6 through the top of the inner tube 4 to act on the polypropylene particles, thereby accelerating the drying speed of the polypropylene. After the operation is completed, the mounting frame 14 is driven upward by the electric cylinder 13, so as to facilitate the removal of the polypropylene particles in the inner barrel 2.

[0030] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0031] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. Polypropylene particle cleaning and drying device, characterized in that: The invention comprises an outer barrel (1), wherein the inner side of the outer barrel (1) is rotatably connected to an inner barrel (2), a plurality of through holes are provided on the side wall and the bottom wall of the inner barrel (2), a lifting device is installed on the outer barrel (1), an outer tube (3) with a closed bottom is fixedly installed on the lifting end of the lifting device, a plurality of rows of stirring rods (5) are fixedly connected to the outer tube (3), and a plurality of rows of external ventilation holes (6) are provided on the outer tube (3), an inner side of the outer tube (3) is rotatably connected to an inner tube (4) with a closed bottom, and a plurality of rows of internal ventilation holes (7) are provided on the inner tube (4), and the plurality of external ventilation holes (6) and the plurality of internal ventilation holes (7) are arranged correspondingly.

2. The polypropylene particle cleaning and drying device according to claim 1, characterized in that: A motor (10) is fixedly mounted on the outer barrel (1), and an output end of the motor (10) is fixedly connected to a pinion gear (11). A large gear (8) is movably sleeved on the outer barrel (1), and the large gear (8) is meshed with the small gear (11). A plurality of brackets (9) are fixedly mounted on the large gear (8), and one end of the bracket (9) is fixedly connected to the top of the inner barrel (2).

3. The polypropylene particle cleaning and drying device according to claim 2, characterized in that: A support column (12) is provided at the bottom of the inner barrel (2), the support column (12) is rotatably connected to the inner barrel (2), and the bottom of the support column (12) is fixedly connected to the bottom wall of the inner cavity of the outer barrel (1).

4. The polypropylene particle cleaning and drying device according to claim 3, characterized in that: The lifting device comprises a mounting frame (14) and two electric cylinders (13), the two electric cylinders (13) being fixedly connected to two sides of the outer barrel (1), respectively, the telescopic ends of the two electric cylinders (13) being fixedly connected to the mounting frame (14), the mounting frame (14) being an inverted U-shaped structure, and the outer surface of the outer tube (3) being fixedly connected to the inner wall of a through hole opened at the top center of the mounting frame (14).

5. The polypropylene particle cleaning and drying device according to claim 4, characterized in that: The inner wall of the outer tube (3) adjacent to the top is rotatably connected to the inner tube (4).

6. The polypropylene particle cleaning and drying device according to claim 5, characterized in that: The inner tube (4) is provided with a fixing frame (15) having an L-shaped structure, the fixing frame (15) being fixedly connected to the outer surface of the inner tube (4), the fixing frame (15) being threadedly connected with a bolt, and the outer surface of the outer tube (3) is provided with two limiting grooves (16), and the ends of the bolts can be moved into the limiting grooves (16).

7. The polypropylene particle cleaning and drying device according to claim 6, characterized in that: The bottom of the outer barrel (1) is fixedly connected to a water outlet hole (17), a valve is installed at the water outlet hole (17), and a plurality of supporting legs (18) are fixedly installed on the outside of the outer barrel (1).

8. The polypropylene particle cleaning and drying device according to claim 7, characterized in that: The plurality of rows of stirring rods (5) are distributed circumferentially along the outer surface of the outer tube (3), and two adjacent rows of stirring rods (5) are staggered up and down.

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