Anti-blocking high-vacuum pretreatment device suitable for polypropylene production

Abstract

The utility model relates to the technical field of polypropylene production, and discloses an anti-blocking high-vacuum pretreatment device suitable for polypropylene production, which comprises a high-vacuum pretreatment device for treating liquid raw materials and a liquid raw material feeding mechanism for feeding the high-vacuum pretreatment device, the liquid raw material feeding mechanism comprises a feeding pump, an anti-blocking filtering device and a cleaning device; the filtering device comprises a barrel body, a metal filtering barrel and a cleaning brush which is driven by a gear motor to rotate forwards and backwards to brush the inner wall of the metal filtering barrel; the cleaning device comprises a cleaning pipe communicated with the cleaning liquid supply system and the barrel and a blow-off pipe located in the center of the bottom of the barrel. By arranging the metal filter cartridge and the cleaning brush, the filtering efficiency is improved, and tiny solid particles are effectively prevented from entering a high-vacuum system. The cleaning brush driven by the gear motor can rotate forwards and backwards to automatically brush the inner wall of the metal filter cartridge, residues are removed, and the shutdown cleaning time is shortened.

Description

Technical Field

[0001] This utility model belongs to the field of polypropylene production technology, specifically relating to an anti-clogging high vacuum pretreatment device adapted to polypropylene production. Background Technology

[0002] In the high-vacuum polypropylene production process, efficient and continuous pretreatment of liquid raw materials is a crucial step in ensuring production efficiency and product quality. Traditional pretreatment devices mainly rely on filtration and centrifugation to remove solid impurities from the raw materials, preventing these impurities from entering the high-vacuum system and causing equipment blockage or reduced system efficiency. However, existing pretreatment devices still have certain problems in terms of filtration efficiency and equipment maintenance.

[0003] Existing filtration devices often fail to effectively prevent the penetration of tiny solid particles, leading to the risk of blockage within high-vacuum systems and impacting production efficiency. Many existing filtration devices lack effective cleaning mechanisms, making it difficult to remove residues from the inner wall of the filter cartridge. Long-term accumulation of these residues reduces filtration efficiency and increases downtime for cleaning.

[0004] In view of this, we propose an anti-clogging high-vacuum pretreatment device adapted to polypropylene production, which facilitates powerful filtration of residual impurities and thus convenient cleaning of the filtration mechanism, in order to solve the above problems. Utility Model Content

[0005] The present invention aims to solve the technical problem that the existing technologies often fail to effectively prevent the penetration of tiny solid particles, leading to the risk of blockage inside the high vacuum system and the lack of an effective cleaning mechanism for the filter device.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A high-vacuum pretreatment device for preventing clogging in polypropylene production includes a high-vacuum pretreatment device for processing liquid raw materials and a liquid raw material feeding mechanism for feeding the high-vacuum pretreatment device; the liquid raw material feeding mechanism includes a feed pump, a filter located at the inlet of the feed pump for filtering the liquid raw materials to prevent clogging, and a cleaning device.

[0008] The filtration device includes a cylindrical body, a metal filter cylinder threaded inside the filter cylinder, and a cleaning brush located inside the metal filter cylinder and driven by a geared motor to rotate in both directions to scrub the inner wall of the metal filter cylinder.

[0009] The cleaning device includes a cleaning pipe that connects the cleaning fluid supply system and the cylinder, and a drain pipe located at the center of the bottom of the cylinder.

[0010] Preferably, the cylinder body is fitted with a cap, the top of the cylinder body has a first flange, and the bottom of the cap has a second flange that mates with the first flange. This ensures a tight seal between the cap and the cylinder body, preventing gas or liquid leakage.

[0011] Preferably, the cylinder body is provided with support plates arranged in a ring at equal intervals to rotate with the rotating connecting shaft, external threaded rods fixed to the rotating connecting shaft and passing through U-shaped grooves on the first and second flanges, and locking handles threaded onto the outer side of the external threaded rods to lock the first and second flanges together. The design of the support plates, external threaded rods, and locking handles allows for convenient and quick docking and locking of the cylinder cover and cylinder body.

[0012] Preferably, a feed pipe is provided on one side of the bottom of the cylinder for feeding into the inside of the metal filter cylinder, and a discharge pipe is provided on one side of the cylinder for transporting the filtered liquid to the feed pump.

[0013] Preferably, the geared motor is fixed to the top of the cylinder cover, and the output end of the geared motor is fixedly connected to the rotating shaft on the cleaning brush.

[0014] Preferably, the cleaning brush includes two brush plates that fit against the inner wall of the metal filter cartridge, two sleeves that are fixedly sleeved on the outer side of the rotating shaft, and a connecting rod that connects the brush plates and the sleeves.

[0015] The geared motor is fixed to the top of the cylinder cover. This layout makes the motor more stable during operation and facilitates maintenance and repair. The brush plate fits against the inner wall of the metal filter cylinder, and the sleeve is fixed to the outer side of the rotating shaft. The connecting rod connects the brush plate and the sleeve. This structural design allows the cleaning brush to effectively scrub the inner wall of the filter cylinder, ensuring comprehensive and efficient cleaning.

[0016] Preferably, a mounting ring is fixedly provided on the outer bottom of the cylinder, and four support feet are arranged in a ring at equal intervals on the mounting ring. This allows the device to be installed more stably in the preset position.

[0017] Compared with the prior art, the technical effects and advantages of this utility model are:

[0018] This anti-clogging high-vacuum pretreatment device, adapted for polypropylene production, is equipped with a filter before the polypropylene liquid raw material enters the high-vacuum pretreatment device. This filter removes tiny solid particles to prevent clogging of the high-vacuum pretreatment device. The metal filter cartridge improves filtration efficiency and effectively prevents tiny solid particles from entering the high-vacuum system.

[0019] The cleaning brush driven by the geared motor can rotate in both directions. It automatically scrubs the inner wall of the metal filter cartridge to remove residues, reducing downtime for cleaning. After cleaning, the residue can be discharged through the drain pipe, making cleaning and sewage discharge convenient. Attached Figure Description

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

[0021] Figure 2 This is an exploded view of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the metal filter cartridge of this utility model;

[0023] Figure 4 This utility model Figure 3 A schematic diagram of the structure after the metal filter cartridge has been removed.

[0024] In the diagram: 1. Cylinder body; 2. Metal filter cylinder; 3. Cleaning brush; 4. Cleaning pipe; 5. Drain pipe; 6. Cylinder cover; 7. First flange; 8. Second flange; 9. Rotating connecting shaft; 10. Support plate; 11. U-shaped groove; 12. External threaded rod; 13. Locking handle; 14. Feed pipe; 15. Discharge pipe; 16. Gear motor; 17. Rotating shaft; 18. Brush plate; 19. Sleeve; 20. Connecting rod; 21. Mounting ring; 22. Support foot. Detailed Implementation

[0025] 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.

[0026] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0027] This application discloses an anti-clogging high vacuum pretreatment device adapted for polypropylene production, including a high vacuum pretreatment device for processing liquid raw materials and a liquid raw material feeding mechanism for feeding the high vacuum pretreatment device; the liquid raw material feeding mechanism includes a feed pump, a filter device located at the inlet of the feed pump for filtering the liquid raw materials to prevent clogging, and a cleaning device.

[0028] The filtration device includes a cylinder 1, a metal filter cylinder 2 threaded inside the filter cylinder, and a cleaning brush 3 located inside the metal filter cylinder 2 and driven by a geared motor 16 to rotate forward and reverse to scrub the inner wall of the metal filter cylinder 2.

[0029] The cylinder body 1 is covered with a cylinder cover 6. The top of the cylinder body 1 is provided with a first flange 7, and the bottom of the cylinder cover 6 is provided with a second flange 8 that is connected to the first flange 7.

[0030] The cylinder 1 is provided with support plates 10 arranged in a ring at equal intervals to cooperate with the rotating connecting shaft 9, external thread rods 12 fixed to the rotating connecting shaft 9 and passing through the U-shaped slots 11 on the first flange 7 and the second flange 8, and locking handles 13 threadedly sleeved on the outer side of the external thread rod 12 and locking the first flange 7 and the second flange 8 together.

[0031] The bottom of the cylinder cover 6 is provided with a second flange 8 that mates with the first flange 7 on the top of the cylinder body 1. This design ensures the sealing between the cylinder cover 6 and the cylinder body 1, preventing gas or liquid leakage. Combined with the design of the support plate 10, the external threaded rod 12, and the locking handle 13, the cylinder cover 6 and the cylinder body 1 can be easily and quickly connected and locked, improving the ease of assembly and maintenance of the equipment.

[0032] The bolt passes through the bottom of the cylinder 1 and is threaded to the metal filter cylinder 2, which can seal and fix the metal filter cylinder 2 inside the cylinder 1. The metal filter cylinder 2 can be removed by removing the bolt.

[0033] A mounting ring 21 is fixedly provided on the outer bottom of the cylinder 1, and four support feet 22 are arranged in a ring at equal intervals on the mounting ring 21. This allows the device to be installed more stably in the preset position.

[0034] A feed pipe 14 is provided on one side of the bottom of the cylinder 1, allowing the liquid to enter the metal filter cylinder 2. A discharge pipe 15 is provided on one side of the cylinder 1, conveying the filtered liquid to the feed pump. The feed pipe 14's location on one side of the bottom of the cylinder 1 facilitates direct entry of the liquid material into the metal filter cylinder 2, reducing flow resistance and improving feeding efficiency. The discharge pipe 15's design ensures smooth delivery of the filtered liquid to the feed pump.

[0035] The geared motor 16 is fixed to the top of the cylinder cover 6, and the output end of the geared motor 16 is fixedly connected to the rotating shaft 17 on the cleaning brush 3. The cleaning brush 3 includes two brush plates 18 that are set against the inner wall of the metal filter cylinder 2, two sleeves 19 that are fixedly sleeved on the outer side of the rotating shaft 17, and a connecting rod 20 that connects the brush plates 18 and the sleeves 19.

[0036] The geared motor 16 is fixed to the top of the cylinder cover 6. This layout makes the motor more stable during operation and facilitates maintenance and repair. The fixed connection between the output end of the geared motor 16 and the rotating shaft 17 of the cleaning brush 3 ensures the rotation speed and force of the cleaning brush 3, effectively improving cleaning efficiency. The brush plate 18 fits against the inner wall of the metal filter cylinder 2, the sleeve 19 is fixed to the outer side of the rotating shaft 17, and the connecting rod 20 connects the brush plate 18 and the sleeve 19. This structural design allows the cleaning brush 3 to effectively scrub the inner wall of the filter cylinder, ensuring comprehensive and efficient cleaning.

[0037] The cleaning device includes a cleaning pipe 4 that connects to the cleaning fluid supply system and the cylinder 1, and a drain pipe 5 located at the bottom center of the cylinder 1.

[0038] This anti-clogging high-vacuum pretreatment device, adapted for polypropylene production, incorporates a filter within the liquid raw material feeding mechanism. This filter removes solid impurities from the raw material, preventing them from entering the high-vacuum system and avoiding system inefficiency or damage due to clogging. The cleaning brush 3, driven by a geared motor 16, rotates in both directions, effectively scrubbing the inner wall of the metal filter cartridge 2 to remove any accumulated residue, maintain filtration efficiency, and reduce downtime for cleaning. The cleaning device is connected to the cleaning fluid supply system, enabling automated cleaning and reducing the complexity and labor intensity of manual operation. By minimizing clogging, safety accidents caused by overpressure or equipment damage in the high-vacuum system can be avoided. The filtration device reduces wear from solid particles, while the cleaning device helps maintain equipment cleanliness; both contribute to extending equipment lifespan. Reduced equipment failures and downtime result in savings in maintenance and production costs.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-vacuum pretreatment device for preventing clogging in polypropylene production, comprising a high-vacuum pretreatment device for processing liquid raw materials and a liquid raw material feeding mechanism for feeding the high-vacuum pretreatment device; characterized in that: The liquid feed mechanism includes a feed pump, a filter located at the inlet of the feed pump for filtering the liquid feed to prevent clogging, and a cleaning device. The filtration device includes a cylinder (1), a metal filter cylinder (2) threaded inside the filter cylinder, and a cleaning brush (3) located inside the metal filter cylinder (2) and driven by a geared motor (16) to rotate in both directions to scrub the inner wall of the metal filter cylinder (2). The cleaning device includes a cleaning pipe (4) that connects the cleaning fluid supply system and the cylinder (1) and a drain pipe (5) located at the center of the bottom of the cylinder (1).

2. The anti-clogging high-vacuum pretreatment device adapted to polypropylene production according to claim 1, characterized in that: The cylinder (1) is covered with a cylinder cover (6), the top of the cylinder (1) is provided with a first flange (7), and the bottom of the cylinder cover (6) is provided with a second flange (8) that connects with the first flange (7).

3. The anti-clogging high-vacuum pretreatment device adapted to polypropylene production according to claim 2, characterized in that: The cylinder (1) is provided with support plates (10) arranged in a ring at equal intervals to rotate with the rotating connecting shaft (9), external thread rods (12) fixed to the rotating connecting shaft (9) and passing through the U-shaped grooves (11) on the first flange (7) and the second flange (8), and locking handles (13) threadedly sleeved on the outer side of the external thread rod (12) and locking the first flange (7) and the second flange (8) together.

4. The anti-clogging high-vacuum pretreatment device adapted to polypropylene production according to claim 1, characterized in that: The bottom side of the cylinder (1) is provided with a feed pipe (14) for feeding into the metal filter cylinder (2), and the side of the cylinder (1) is provided with a discharge pipe (15) for transporting the filtered liquid to the feed pump.

5. The anti-clogging high-vacuum pretreatment device adapted to polypropylene production according to claim 2, characterized in that: The geared motor (16) is fixed on the top of the cylinder cover (6), and the output end of the geared motor (16) is fixedly connected to the rotating shaft (17) on the cleaning brush (3).

6. The anti-clogging high-vacuum pretreatment device adapted to polypropylene production according to claim 1, characterized in that: The cleaning brush (3) includes two brush plates (18) that fit against the inner wall of the metal filter cylinder (2), two sleeves (19) that are fixedly sleeved on the outer side of the rotating shaft (17), and a connecting rod (20) that connects the brush plates (18) and the sleeves (19).

7. The anti-clogging high-vacuum pretreatment device adapted to polypropylene production according to claim 1, characterized in that: An installation ring (21) is fixedly provided on the outer bottom of the cylinder (1), and four support legs (22) are arranged in a ring at equal intervals on the installation ring (21).

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