A filter device for pipeline transportation of plastic particles in vacuum feeding system

Abstract

The utility model relates to the technical field related to pipeline connection, and discloses a filtering device for pipeline transportation of a plastic particle vacuum feeding system. The utility model is vertically installed in the middle section of the vacuum feeding pipeline. When the vacuum pipeline sucks the plastic particles upward, unqualified plastic particles will be intercepted by the conical filter cylinder. At the same time, when the plastic particles mixed with the airflow pass through the spiral baffle, it will rotate along the spiral baffle. At this time, the heavier plastic particles will also be thrown out under the action of centrifugal force. In addition, when the plastic particles mixed with the airflow pass through the power fan blades, the conical filter cylinder will be driven to rotate together, thereby throwing out impurities blocking the conical filter cylinder. At the same time, the spiral baffle will also scrape off the impurities adhering to the outside of the conical filter cylinder, and the filtered impurities will fall into the filter residue temporary storage bin for collection and storage.

Description

Technical Field

[0001] The utility model relates to the technical field related to vacuum feeding systems, in particular to a filtering device for pipeline transportation of plastic particles in a vacuum feeding system. Background Art

[0002] The vacuum feeding system is a system used to convey powder, granular or pelletized materials. Its working principle is to use negative pressure to create suction to transport materials from one location to another. It is widely used in the plastic processing industry to facilitate the conveying of plastic particles.

[0003] Since the particles may be melted and bonded during processing, causing pipeline blockage or affecting subsequent processing, a filtering device is needed to filter the particles. However, traditional filtering devices are prone to blockage during filtering, seriously affecting the filtering efficiency. Utility Model Content

[0004] The utility model aims to provide a filtering device for pipeline transportation of plastic particles in a vacuum feeding system. The device is used to work, thereby solving the problem that the traditional filtering device is prone to clogging during filtering.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a filtering device for pipeline transportation of plastic particles vacuum feeding system, comprising a pipeline filter barrel, the pipeline filter barrel is installed in the middle section of the vacuum feeding transportation pipeline, the lower end of the pipeline filter barrel is provided with a filter cartridge inlet, the upper end of the pipeline filter barrel is provided with a filter cartridge outlet, the filter cartridge inlet is fixedly connected with a primary screening filter net, the primary screening filter net is movably connected with a rotating support shaft through a bearing, the upper end of the rotating support shaft is fixedly connected with a power fan blade through a keyway, the rotating support shaft is fixedly connected with a conical filter barrel through a support frame around the rotating support shaft, the conical filter barrel is provided with a spiral baffle around the conical filter barrel, the lower part of the spiral baffle is fixedly connected with a conical separation barrel, an electrostatic adsorption net is provided on the inner wall of the pipeline filter barrel, a control device bin is provided above the pipeline filter barrel, an inspection door is provided on one side of the control device bin, a filter residue temporary storage bin is provided at the lower end of the pipeline filter barrel, and two separate filter residue removal covers are provided at the bottom of the filter residue temporary storage bin.

[0006] Furthermore, the pipeline filter barrel is vertically installed on the vacuum feeding and transporting pipeline, and the tip of the conical filter cylinder faces downward.

[0007] Furthermore, the upper edge of the conical filter cartridge is rotatably connected to the pipeline filter barrel, and the connection between the upper end of the conical filter cartridge and the pipeline filter barrel is airtightly sealed by an airtight sealing ring.

[0008] Furthermore, the upper end of the spiral baffle is fixedly connected to the pipeline filter barrel, the lower end of the conical separation cylinder is fixedly connected to the pipeline filter barrel, and the spiral baffle and the conical separation cylinder are fixedly connected by welding.

[0009] Furthermore, the power fan blade is located at the outlet of the filter cartridge, and the diameter of the power fan blade is slightly smaller than the diameter of the outlet of the filter cartridge.

[0010] Furthermore, the filter residue temporary storage bin is located in the gap between the conical separation cylinder and the pipeline filter barrel, and the width of the spiral baffle is greater than or equal to the diameter of the upper end of the conical separation cylinder.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] The utility model proposes a filtering device for pipeline transportation of a vacuum feeding system of plastic particles, which is vertically installed in the middle section of the vacuum feeding pipeline. When the vacuum pipeline generates attraction to suck the plastic particles upward together with the air, the unqualified plastic particles that are too large will be intercepted by the conical filter barrel. At the same time, when the plastic particles mixed with the airflow pass through the spiral baffle, they will rotate along the spiral baffle. At this time, the plastic particles with heavier weight will also be thrown out under the action of centrifugal force. At the same time, since the plastic particles will generate static electricity when they collide continuously, the electrostatic adsorption net on the inner wall of the pipeline filter barrel can adsorb small-mass charged impurities. In addition, when the plastic particles mixed with the airflow pass through the power fan blades, the conical filter barrel will be driven to rotate together, thereby throwing out the impurities blocking the conical filter barrel. At the same time, the spiral baffle will also scrape off the impurities adhering to the outside of the conical filter barrel, and the filtered impurities will fall into the filter residue temporary storage bin for collection and storage, thereby achieving multiple effects:

[0013] First, the triple effects of conical filter cartridge filtration, centrifugal separation and electrostatic adsorption net adsorption can effectively filter out unqualified products that are too large and too small in plastic particles, which is better than the traditional filter mesh filtration effect;

[0014] Secondly, the suction effect of the vacuum feeding pipe is used to drive the power fan blades and the conical filter cartridge to rotate. The centrifugal effect and the spiral baffle can be used to scrape off the residual material on the outer surface of the spiral baffle to avoid clogging the conical filter cartridge. Compared with traditional filtering methods, it is less likely to be clogged. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a cross-sectional structural schematic diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the appearance structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the conical filter cartridge of the utility model;

[0018] Figure 4 This is a schematic cross-sectional structure diagram of a conical filter cartridge of the utility model;

[0019] Figure 5 It is a schematic diagram of the structure of the filter residue removing cover of the utility model.

[0020] In the figure: 1. Pipe filter barrel; 2. Filter cartridge inlet; 3. Filter cartridge outlet; 4. Primary screening filter screen; 5. Rotating support shaft; 6. Power fan blades; 7. Support frame; 8. Conical filter cartridge; 9. Spiral baffle; 10. Conical separation cylinder; 11. Electrostatic adsorption net; 12. Control equipment compartment; 13. Inspection door; 14. Filter residue temporary storage bin; 15. Filter residue removal cover. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings.

[0023] Combination Figure 1-Figure 5A filtering device for pipeline transportation of a vacuum feeding system for plastic particles comprises a pipeline filter barrel 1, which is installed in the middle section of a vacuum feeding transportation pipeline. A filter cartridge inlet 2 is arranged at the lower end of the pipeline filter barrel 1, and a filter cartridge outlet 3 is arranged at the upper end of the pipeline filter barrel 1. A primary screening filter screen 4 is fixedly connected to the filter cartridge inlet 2, and a rotating support shaft 5 is movably connected to the primary screening filter screen 4 through a bearing. A power fan blade 6 is fixedly connected to the upper end of the rotating support shaft 5 through a key groove. The power fan blade 6 is located at the filter cartridge outlet 3, and the diameter of the power fan blade 6 is slightly smaller than the diameter of the filter cartridge outlet 3, so that when the plastic particles continue to be transported upward through the conical filter barrel 8, the power fan blade 6 can be driven to rotate. The rotating support shaft 5 is fixedly connected with a conical filter cartridge 8 by a support frame 7. The upper edge of the conical filter cartridge 8 is rotatably connected to the pipeline filter barrel 1, and the upper end of the conical filter cartridge 8 and the connection with the pipeline filter barrel 1 are sealed by an airtight sealing ring, so that the conical filter cartridge 8 can rotate freely without affecting the airtightness of the gap between the conical filter cartridge 8 and the pipeline filter barrel 1. A spiral baffle 9 is arranged around the conical filter cartridge 8, and a conical separator barrel 10 is fixedly connected to the lower part of the spiral baffle 9. The upper end of the spiral baffle 9 is fixedly connected to the pipeline filter barrel 1, and the lower end of the conical separator barrel 10 is fixedly connected to the pipeline filter barrel 1. The spiral baffle 9 and the conical separator barrel 10 are fixedly connected by welding, so that the spiral baffle 9 and the conical separator barrel 10 are both fixedly connected to the pipeline filter barrel 1, so that when the conical filter cartridge 8 rotates, the spiral baffle 9 will not rotate, and the filter residue on the outside of the conical filter cartridge 8 can be scraped off. An electrostatic adsorption net 11 is provided on the inner wall of the pipeline filter barrel 1, a control equipment bin 12 is provided above the pipeline filter barrel 1, an inspection door 13 is provided on one side of the control equipment bin 12, a filter residue temporary storage bin 14 is provided at the lower end of the pipeline filter barrel 1, and two separate filter residue removal covers 15 are provided at the bottom of the filter residue temporary storage bin 14. The filter residue temporary storage bin 14 is located in the gap between the conical separation cylinder 10 and the pipeline filter barrel 1, and the width of the spiral baffle 9 is greater than or equal to the upper end diameter of the conical separation cylinder 10, so that the filter residue will fall into the filter residue temporary storage bin 14 when it falls from the surrounding of the spiral baffle 9.

[0024] Specifically, the pipeline filter barrel 1 is vertically installed on the vacuum feeding and transporting pipeline, and the tip of the conical filter cylinder 8 faces downward, so that the filtering surface of the conical filter cylinder 8 is inclined downward, which is conducive to the falling off and separation of the filter residue outside the conical filter cylinder 8.

[0025] Working principle: During use, first install the filter cartridge inlet 2 of the pipeline filter barrel 1 downward and the filter cartridge outlet upward in the middle section of the vacuum feeding pipeline. Then, when the vacuum feeding system is working, negative pressure will be generated in the pipeline, thereby generating attraction for plastic particles and air, sucking them into the pipeline, and then entering the pipeline filter barrel 1 through the filter cartridge inlet 2. Then, under the obstruction of the primary screening filter 4, those large impurities, such as plastic bags, plastic sheets, etc., will be blocked. Subsequently, the plastic particles will spiral upward under the obstruction of the spiral baffle 9. At the same time, plastic particles with suitable particles will continue to be transported through the conical filter barrel 8, while those with larger particles and mass will be blocked by the conical filter barrel 8 and thrown out to the surrounding of the spiral baffle 9 through centrifugal force, and fall into the filter residue temporary storage bin 14.

[0026] When the electrostatic adsorption net 11 is energized, static electricity is generated, and the plastic particles also generate static electricity during continuous collisions, so that the lighter plastic particles are attracted to the electrostatic adsorption net 11 by static electricity, and fall into the filter residue temporary storage bin 14 when impacted by larger plastic particles.

[0027] When the plastic particles with appropriate particles continue to be transported upward through the conical filter barrel 8, they will pass through the power fan blades 6 and push the power fan blades 6 to rotate, so that the power fan blades 6 will drive the conical filter barrel 8 to rotate, so that the impurities adsorbed outside the conical filter barrel 8 will be scraped off by the spiral baffle 9 and fall into the filter residue temporary storage bin 14 to avoid clogging of the conical filter barrel 8. At the same time, the filter residue can also be collected and processed by opening the filter residue removal cover 15.

[0028] It should be noted that, in this article, relational terms such as second and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A filtering device for pipeline transportation of plastic particles in a vacuum feeding system, comprising a pipeline filtering barrel (1), characterized in that: The pipeline filter barrel (1) is installed in the middle section of the vacuum feeding transport pipeline. The lower end of the pipeline filter barrel (1) is provided with a filter cartridge inlet (2), and the upper end of the pipeline filter barrel (1) is provided with a filter cartridge outlet (3). The filter cartridge inlet (2) is fixedly connected to a primary screening filter screen (4). The primary screening filter screen (4) is movably connected to a rotating support shaft (5) via a bearing. The upper end of the rotating support shaft (5) is fixedly connected to a power fan blade (6) via a keyway. The rotating support shaft (5) is fixedly connected to a conical filter cartridge (6) via a support frame (7) around the rotating support shaft (5). 8), spiral baffles (9) are arranged around the conical filter barrel (8), the lower part of the spiral baffles (9) is fixedly connected to a conical separation barrel (10), the inner wall of the pipeline filter barrel (1) is provided with an electrostatic adsorption net (11), a control device compartment (12) is arranged above the pipeline filter barrel (1), a maintenance door (13) is opened on one side of the control device compartment (12), a filter residue temporary storage compartment (14) is arranged at the lower end of the pipeline filter barrel (1), and two separate filter residue removal covers (15) are arranged at the bottom of the filter residue temporary storage compartment (14).

2. A filter device for transporting plastic particles in a vacuum feeding system according to claim 1, characterized in that: The pipeline filter barrel (1) is vertically installed on the vacuum feeding and transporting pipeline, and the tip of the conical filter cylinder (8) faces downward.

3. A filter device for transporting plastic particles in a vacuum feeding system according to claim 1, characterized in that: The upper edge of the conical filter cartridge (8) is rotatably connected to the pipeline filter barrel (1), and the connection between the upper end of the conical filter cartridge (8) and the pipeline filter barrel (1) is hermetically sealed by an airtight sealing ring.

4. A filter device for transporting plastic particles in a vacuum feeding system according to claim 1, characterized in that: The upper end of the spiral baffle (9) is fixedly connected to the pipeline filter barrel (1), the lower end of the conical separation barrel (10) is fixedly connected to the pipeline filter barrel (1), and the spiral baffle (9) and the conical separation barrel (10) are fixedly connected by welding.

5. The filtering device for pipeline transportation of plastic particles in a vacuum feeding system according to claim 1, characterized in that: The power fan blade (6) is located at the filter cartridge outlet (3), and the diameter of the power fan blade (6) is slightly smaller than the diameter of the filter cartridge outlet (3).

6. A filter device for transporting plastic particles in a vacuum feeding system according to claim 1, characterized in that: The filter residue temporary storage bin (14) is located in the gap between the conical separation cylinder (10) and the pipeline filter barrel (1), and the width of the spiral baffle (9) is greater than or equal to the diameter of the upper end of the conical separation cylinder (10).

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