ABS plastic particle impurity removal device

Abstract

The utility model relates to an impurity removal device, and provides the ABS plastic particle impurity removal device which comprises a rack, a material conveying box, an elastic buffer seat, a conveying belt and the like, the upper portion of the machine frame is connected with a material conveying box through a plurality of elastic buffering seats, a material conveying channel extending transversely is arranged in the material conveying box, a conveying belt is transversely erected in the material conveying channel, and material discharging channels are arranged on the left side and the right side of the lower portion of the material conveying box. According to the utility model, materials and impurities generate differentiated electromagnetic characteristics through polarization treatment, a dynamic adsorption field is formed by utilizing polarity alternate arrangement of the multiple stages of electrode plates, polarized impurity particles present a directional migration behavior under the action of an alternating electric field, and pure materials maintain an original motion trail, so that selective impurity removal is realized; and besides magnetic impurities, impurities with similar particle sizes or similar masses mixed into particles are reduced, the impurity removal effect of plastic particle materials is achieved, and impurities with similar physical properties, which are difficult to distinguish through traditional screening, are effectively separated.

Description

Technical Field

[0001] This utility model relates to a purification device, and more particularly to a purification device for ABS plastic particles. Background Technology

[0002] In the production of ABS plastic granules, traditional impurity removal processes mainly rely on mechanical screening and magnetic separation technology. This involves separating impurities of different particle sizes using vibrating screens and then using permanent magnets to adsorb ferromagnetic substances. While this process can handle obvious foreign objects, it is almost ineffective against non-metallic impurities with similar density and particle size to the raw materials (such as similar plastic debris and coating residues). This makes it difficult to meet the high-purity production requirements. As the cleanliness requirements of materials in fields such as electronics, electrical appliances, and medical devices become increasingly stringent, physical screening alone can no longer meet the needs of refined impurity removal. Subsequent stages must be carried out for secondary processing, which affects efficiency and is prone to causing secondary pollution.

[0003] Specifically, traditional screening equipment is inefficient at separating impurities with similar physical properties, leaving a large number of fine impurities in the finished product; secondly, magnetic separation can only target metallic impurities and cannot handle non-metallic contaminants, which constitute the majority of impurities. This limitation of selective impurity removal forces companies to set up multiple manual inspection stations, which not only increases production costs but also causes batch-to-batch quality fluctuations due to differences in personnel operation. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide an ABS plastic particle impurity removal device.

[0005] The technical solution is as follows: An ABS plastic granule impurity removal device includes a frame, a transfer box, elastic buffer seats, a conveyor belt, a transfer frame, electrode plates, a distributor, discharge ports, a vibration module, and a distribution plate. The upper part of the frame is connected to the transfer box via multiple elastic buffer seats. The transfer box has a laterally extending transfer channel, and a conveyor belt is horizontally mounted within the transfer channel. Discharge channels are located on both the left and right sides of the lower part of the transfer box. The left part of the conveyor belt extends into the upper area of ​​the discharge channel on the right side. A transfer frame is vertically inserted through the right side of the transfer box, and the lower part of the transfer frame extends into the transfer box. The internal space of the transfer frame is connected to the internal space of the transfer box. Several electrode plates are arranged within the transfer frame. Adjacent electrode plates have opposite polarities and are grouped in pairs to form electrode plate units. Vertical channels for directional material discharge are formed between each electrode plate unit. A distributor is fixedly mounted on the upper part of the transfer frame. The distributor includes a buffer chamber and several discharge ports connecting to the lower space of the buffer chamber. Each discharge port is connected to... Alternating electrode plates are arranged within the material transfer box, ensuring that the discharge direction of each discharge port faces the vertical channel formed between adjacent electrode plates. A polarization cylinder is vertically installed at the top of the material transfer box, through which external materials fall into the distributor. The polarization cylinder polarizes the materials. The distributor is equipped with a vibration module. The lower part of the material transfer box features an inverted trapezoidal guiding structure with a rotating distribution plate at its bottom opening. When the distribution plate rotates in one direction, the inverted trapezoidal structure at the bottom of the material transfer box forms a discharge port facing the left conveyor belt, guiding granular plastic into the conveyor belt. When the distribution plate rotates in the opposite direction, the inverted trapezoidal structure at the bottom of the material transfer box forms a discharge port facing the right material transfer box discharge port, discharging impurities to a designated area, thus separating materials from impurities. The material transfer box is equipped with an adjustment mechanism that drives the distribution plate to rotate, thereby adjusting the angle of the distribution plate to achieve the desired material distribution effect.

[0006] More preferably, the polarization cylinder includes a cylinder body, a feed pipe, and a circular polarizer. The cylinder body is vertically mounted on the distributor, and the internal space of the cylinder body is connected to the internal space of the buffer chamber of the distributor. The feed pipe is located on one side of the upper part of the cylinder body. The circular polarizer is concentrically and vertically mounted inside the cylinder body. It is composed of multiple electrodes evenly distributed along the circumference. By applying a specific voltage, a radial electric field is generated to achieve a uniform polarization effect on the material entering the cylinder body.

[0007] More preferably, the adjustment includes a connecting rod, a swing arm, and a cylinder. A connecting rod is fixedly installed at the rotation axis point on the front side of the material distribution plate. The front end of the connecting rod extends outward from inside the material transfer box. A swing arm is installed on the connecting rod. A cylinder is hinged to the front side of the material transfer box. The movable rod of the cylinder is connected to the end of the swing arm. Through the extension and retraction of the movable rod of the cylinder, the end of the swing arm is driven to swing. Then, through the rigid connection between the connecting rod and the rotation axis point of the material distribution plate, the swing of the swing arm is converted into the rotational motion of the material distribution plate around its hinge axis, thereby realizing the angle adjustment of the material distribution plate.

[0008] More preferably, it also includes a spiral strip, which is fixedly provided on the inner wall of the cylinder and arranged around the periphery of the circular polarizer. The spiral strip forms a continuous spiral channel in the cylinder to guide the material entering the cylinder along the spiral channel.

[0009] More preferably, it also includes a mounting base and a scraper. The mounting base is located on the left side of the material box, and a scraper is installed on the mounting base. The end of the scraper is located above the left discharge channel, and the scraper slides in contact with the surface of the conveyor belt.

[0010] More preferably, the surface of the electrode plate is serrated or corrugated.

[0011] The beneficial effects are as follows: 1. This utility model uses polarization treatment to produce differentiated electromagnetic properties between materials and impurities. By using the alternating polarity arrangement of multi-level electrode plates to form a dynamic adsorption field, the polarized impurity particles exhibit directional migration behavior under the action of alternating electric field, while the pure material maintains its original trajectory, thereby achieving selective impurity removal. This reduces the amount of impurities of similar particle size or mass mixed into the particles, except for magnetically attracted impurities, thus achieving the impurity removal effect of plastic granules and effectively separating impurities with similar physical properties that are difficult to distinguish using traditional screening.

[0012] 2. This utility model has a material distribution plate at the bottom of the material transfer frame to guide the material and impurities in different directions and separate them in an orderly manner. This allows the impurities to be discharged through an independent channel, thus achieving physical isolation between the material flow and the impurity flow. This reduces the need for manual intervention and completes the process from impurity adsorption and desorption to discharge. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is a three-dimensional structural diagram of the material transfer frame, electrode plate, and material distribution mechanism of this utility model.

[0015] Figure 3 This is a three-dimensional structural diagram of the material transfer box, conveyor belt, and material transfer frame of this utility model.

[0016] Figure 4 This is a three-dimensional structural diagram of the feeding mechanism and distributor of this utility model.

[0017] Figure 5 This is a three-dimensional structural diagram of the mounting base and scraper of this utility model.

[0018] The components in the attached diagram are labeled as follows: 1_Frame, 2_Feed box, 21_Elastic buffer seat, 3_Conveyor belt, 31_Discharge channel, 4_Feed frame, 41_Electrode plate, 5_Distributor, 51_Discharge port, 52_Vibration module, 6_Cylinder, 61_Feed pipe, 62_Circular polarizer, 63_Spiral strip, 7_Distribution plate, 71_Connecting rod, 72_Swing arm, 73_Cylinder, 8_Mounting base, 81_Scraper. Detailed Implementation

[0019] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] Example 1

[0021] An ABS plastic granule impurity removal device, such as Figure 1-4 As shown, the device includes a frame 1, a material transfer box 2, elastic buffer seats 21, a conveyor belt 3, a material transfer frame 4, an electrode plate 41, a distributor 5, a discharge port 51, a vibration module 52, and a distribution plate 7. The upper part of the frame 1 is connected to the material transfer box 2 via multiple elastic buffer seats 21. The elastic buffer seats 21 employ a combination of springs and dampers; their lower ends are bolted to the upper surface of the frame 1, while their upper ends are welded to the bottom of the material transfer box 2. This connection method effectively absorbs the vibration generated during the operation of the material transfer box 2, reducing its impact on the frame 1 and improving the stability of the device's operation. The material transfer box 2 has a laterally extending material transfer channel. A conveyor belt 3 is horizontally mounted within this channel. The conveyor belt 3 is supported on the inner walls of the left and right sides of the material transfer channel by rollers at both ends. The rollers are driven by a motor installed on the outside of the material transfer box 2, causing the conveyor belt 3 to move laterally for conveying ABS plastic granules that have undergone impurity removal treatment. The lower left and right sides of the material box 2 are provided with discharge channels 31. The left side of the conveyor belt 3 extends into the upper area of ​​the discharge channel 31 on the right side. When the conveyor belt 3 is running, the granular material can be discharged from the discharge channel 31 on the right side, realizing the initial transfer of materials.

[0022] A transfer frame 4 is vertically inserted through the right side of the transfer box 2. The outer wall of the transfer frame 4 is sealed to the perforation on the right side of the transfer box 2 by a sealing ring to ensure that the material does not leak. The lower part of the transfer frame 4 extends into the transfer box 2, and the internal space of the transfer frame 4 is connected to the internal space of the transfer box 2. Several electrode plates 41 are arranged inside the transfer frame 4. Adjacent electrode plates 41 are fixed to the inner wall of the transfer frame 4 by insulating brackets and have opposite polarities, forming electrode plate units in pairs. Vertical channels for the directional discharge of material are formed between each electrode plate unit. When the material passes through the vertical channel, under the action of the electric field generated by the electrode plates 41, the charged ABS plastic particles will be affected by the electric field force and move in a specific direction, while the uncharged impurities will not be affected, thereby achieving the initial separation of material and impurities.

[0023] A distributor 5 is fixedly installed on the upper part of the material transfer frame 4. The distributor 5 is connected to the material transfer frame 4 by bolts. The distributor 5 includes a buffer bin and several discharge ports 51 that connect to the lower space of the buffer bin. Each discharge port 51 is corresponding to the electrode plates 41 that are alternately arranged in the material transfer frame 4, so that the discharge direction of each discharge port 51 is directly opposite to the vertical channel formed between adjacent electrode plates 41. The distributor 5 is equipped with a vibration module 52. The vibration module 52 is an electromagnetic vibrator, which is fixed to the outer wall of the distributor 5 by bolts. When working, it generates vibration so that the material in the buffer bin can fall evenly from the discharge port 51 into the vertical channel, avoiding the accumulation of material inside the distributor 5 and ensuring the impurity removal effect.

[0024] like Figure 1 and Figure 4 As shown, a polarizing cylinder is vertically installed through the upper part of the material transfer box 2. External materials fall into the distributor 5 through the polarizing cylinder and are polarized by the polarizing cylinder. The polarizing cylinder includes a cylinder body 6, a feed pipe 61, and a circular polarizer 62. The cylinder body 6 is vertically installed on the distributor 5. The cylinder body 6 is connected to the buffer bin of the distributor 5 through a flange to ensure sealing performance. The feed pipe 61 is provided on one side of the upper part of the cylinder body 6. The feed pipe 61 is welded to the cylinder body 6. The feed pipe 61 should be connected to an external power transmission component to introduce external materials into the cylinder body 6. The cylinder body 6 is concentric and vertically installed inside. There is a circular polarizer 62, which is composed of multiple electrodes evenly distributed along the circumference. The electrodes are fixed to the inner wall of the cylinder 6 by an insulating support. A radial electric field is generated by applying a specific voltage. When the material enters the cylinder 6, the ABS plastic particles will be uniformly polarized under the action of the radial electric field, so that they carry a specific charge, which is convenient for subsequent separation in the electric field formed by the electrode plate 41. The surface of the electrode plate 41 is serrated or corrugated. This structural design increases the effective adsorption area of ​​the electrode plate 41. At the same time, the grooves can trap large particles of impurities, ensuring that impurities are separated from the material more thoroughly.

[0025] Specifically, when the mixture of ABS plastic granules and impurities passes through the polarization cylinder, the radial electric field generated by the circular polarizer causes different materials to acquire differentiated charge characteristics. The materials enter the distributor 5 and then the transfer frame 4. Due to the difference in dielectric constant between the ABS substrate and impurities (such as other plastic fragments, coating residues, etc.), under the action of the alternating electric field formed in the area of ​​the spaced electrode plates 41, more free charges accumulate on the surface of the impurity particles, while the pure ABS particles only maintain a moderately polarized state. This charge difference causes the materials to exhibit drastically different motion behaviors when falling into the vertical channel formed by the electrode plates 41. The strongly charged impurity particles are strongly attracted in the alternating electric field of the adjacent electrode plates, constantly oscillating in a zigzag pattern and gradually migrating to the surface of the electrode plates 41; while the weakly polarized pure ABS particles are mainly maintained by gravity and maintain a vertical falling trajectory. After the materials flow through multiple sets of alternating polarity electrodes 41, the charged impurities are continuously adsorbed on the surface of the electrode plates 41.

[0026] Among them, such as Figure 1-3 As shown, the lower part of the conveyor frame 4 is configured with an inverted trapezoidal material guiding structure. A material distribution plate 7 is rotatably mounted at the bottom opening of the frame. The material distribution plate 7 is installed at the bottom of the inverted trapezoidal structure of the conveyor frame 4 via a rotating shaft. Both ends of the rotating shaft are fixed to the inner wall of the conveyor frame 4 via bearings. When the material distribution plate 7 rotates in one direction, the inverted trapezoidal structure at the bottom of the conveyor frame 4 forms an outlet facing the left conveyor belt 3, which guides the separated impurity granular plastic continuously into the conveyor belt 3. This stage is the plastic material discharge stage. When the material distribution plate 7 rotates in the opposite direction... When rotating, the inverted trapezoidal structure at the bottom of the transfer frame 4 forms an outlet facing the discharge port 51 of the right transfer box 2, which is used to discharge impurities to a designated area to achieve separation of materials and impurities. When impurities on the electrode plate 41 need to be desorbed, the adjusting mechanism drives the distribution plate 7 to rotate, so that the discharge port at the bottom of the transfer frame 4 faces the discharge port on the left side of the transfer box 2. The periodic vibration of the vibration module is controlled to make the adsorbed impurities on the electrode plate 41 fall off to the corresponding discharge port, so as to facilitate impurity collection and achieve separation of materials and impurities.

[0027] Example 2

[0028] Based on Example 1, such as Figure 4 As shown, it also includes a spiral strip 63. The spiral strip 63 is fixedly provided on the inner wall of the cylinder 6. The spiral strip 63 is fixed to the inner wall of the cylinder 6 by welding. It is arranged around the periphery of the circular polarizer 62. The spiral strip 63 forms a continuous spiral channel in the cylinder 6. When the material enters the cylinder 6, it is transported along the spiral channel under the guidance of the spiral strip 63. While guiding the material to be transported in an orderly manner, it prolongs the residence time of the material in the cylinder, so that it can fully accept the polarization effect of the radial electric field generated by the circular polarizer 62, thereby more uniformly carrying a specific charge, laying a good foundation for subsequent separation in the electric field formed by the electrode plate 41.

[0029] In addition, such as Figure 3 and Figure 5 As shown, the device also includes a mounting base 8 and a scraper 81. The mounting base 8 is fixed to the left side of the material box 2 by bolts. The scraper 81 is installed on the mounting base 8 by bolts. The end of the scraper 81 is located above the left discharge channel 31, and the scraper 81 slides in contact with the surface of the conveyor belt 3. When the conveyor belt 3 is running, the scraper 81 can scrape off the particulate material adhering to the surface of the conveyor belt 3 in a timely manner, preventing material residue and accumulation, ensuring the cleanliness and normal operation of the conveyor belt 3, and ensuring that the material can be discharged smoothly from the left discharge channel 31, avoiding problems such as transmission blockage caused by material residue, and further improving the working efficiency and stability of the device.

[0030] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. An ABS plastic granule impurity removal device, comprising a frame (1); Its characteristics are, It also includes a material transfer box (2), an elastic buffer seat (21), a conveyor belt (3), a material transfer frame (4), an electrode plate (41), a distributor (5), a discharge port (51), a vibration module (52), and a distribution plate (7). The upper part of the frame (1) is connected to the material transfer box (2) through multiple elastic buffer seats (21). The material transfer box (2) is provided with a horizontally extending material transfer channel. The conveyor belt (3) is horizontally mounted in the material transfer channel. The lower left and right sides of the material transfer box (2) are provided with discharge channels (31). The left part of the conveyor belt (3) extends into the right discharge channel (31). In the upper region, a transfer frame (4) is vertically inserted through the right side of the transfer box (2). The lower part of the transfer frame (4) extends into the transfer box (2). The internal space of the transfer frame (4) is connected to the internal space of the transfer box (2). Several electrode plates (41) are arranged inside the transfer frame (4). Adjacent electrode plates (41) have opposite polarities and are grouped into two groups to form electrode plate units. Vertical channels for directional discharge of materials are formed between each electrode plate unit. A distributor (5) is fixedly installed on the upper part of the transfer frame (4). The distributor (5) includes a buffer bin and several discharge ports (51) connecting the lower space of the buffer bin. The discharge port (51) is corresponding to the alternating electrode plates (41) in the transfer frame (4), so that the discharge direction of each discharge port (51) is directly opposite to the vertical channel formed between adjacent electrode plates (41). A polarization cylinder is vertically installed in the upper part of the transfer box (2). External materials fall into the distributor (5) through the polarization cylinder and are polarized by the polarization cylinder. The distributor (5) is equipped with a vibration module (52). The lower part of the transfer frame (4) is configured with an inverted trapezoidal material guiding structure. A distribution plate (7) is rotatably installed at the bottom opening. When the distribution plate (7) faces one direction... When the material is rotated, the inverted trapezoidal structure at the bottom of the material frame (4) forms an outlet facing the left conveyor belt (3) to guide the granular plastic into the conveyor belt (3); when the material distribution plate (7) rotates in the opposite direction, the inverted trapezoidal structure at the bottom of the material frame (4) forms an outlet facing the discharge port (51) of the right material box (2) to discharge impurities to the designated area and achieve separation of materials and impurities. The material box (2) is equipped with an adjustment mechanism, which drives the material distribution plate (7) to rotate, thereby adjusting the angle of the material distribution plate (7) to achieve the material distribution effect.

2. The ABS plastic granule impurity removal device according to claim 1, characterized in that, The polarization cylinder includes a cylinder body (6), a feed pipe (61), and a circular polarizer (62). The cylinder body (6) is vertically mounted on the distributor (5). The internal space of the cylinder body (6) is connected to the internal space of the buffer chamber of the distributor (5). The feed pipe (61) is located on one side of the upper part of the cylinder body (6). The circular polarizer (62) is concentrically and vertically mounted inside the cylinder body (6). It is composed of multiple electrodes evenly distributed along the circumference. By applying a specific voltage, a radial electric field is generated to achieve a uniform polarization effect on the material entering the cylinder body (6).

3. The ABS plastic granule impurity removal device according to claim 2, characterized in that, The adjustment includes a connecting rod (71), a swing arm (72), and a cylinder (73). The connecting rod (71) is fixed at the rotation axis point on the front side of the material distribution plate (7). The front end of the connecting rod (71) extends outward from the material transfer box (2). The swing arm (72) is provided on the connecting rod (71). The cylinder (73) is hinged to the front side of the material transfer box (2). The movable rod of the cylinder (73) is connected to the end of the swing arm (72). Through the extension and retraction of the movable rod of the cylinder (73), the end of the swing arm (72) swings. Then, through the rigid connection between the connecting rod (71) and the rotation axis point of the material distribution plate (7), the swing of the swing arm (72) is converted into the rotational motion of the material distribution plate (7) around its hinge axis, thereby realizing the angle adjustment of the material distribution plate (7).

4. The ABS plastic granule impurity removal device according to claim 3, characterized in that, It also includes a spiral strip (63), which is fixedly provided on the inner wall of the cylinder (6). The spiral strip (63) is arranged around the periphery of the circular polarizer (62). The spiral strip (63) forms a continuous spiral channel in the cylinder (6) to guide the material entering the cylinder (6) along the spiral channel.

5. An ABS plastic granule impurity removal device according to claim 4, characterized in that, It also includes a mounting base (8) and a scraper (81). The mounting base (8) is located on the left side of the material box (2). The scraper (81) is mounted on the mounting base (8). The end of the scraper (81) is located above the left discharge channel (31), and the scraper (81) slides in contact with the surface of the conveyor belt (3).

6. The ABS plastic granule impurity removal device according to claim 5, characterized in that, The surface of the electrode plate (41) is serrated or corrugated.

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