Regenerated plastic particle impurity removal device

Abstract

The utility model relates to a regenerated plastic particle impurity removing device which comprises a mounting frame, an impurity removing roller is rotationally mounted on the mounting frame, a feeding port is formed in the peripheral surface of the top of one end of the impurity removing roller, and a circulating discharging port and a total discharging port are formed in the peripheral surface of the bottom of the other end of the impurity removing roller. Screens are installed on the peripheral face and the two end faces of the impurity removing roller at intervals. The circulating feeding mechanism comprises a horizontal spiral feeding machine and an inclined spiral feeding machine; the impurity removal roller on the mounting frame can remove impurities from the particles, the screen is embedded in the peripheral surface of the impurity removal roller, the particles can make direct contact with external air through meshes in the screen, natural air drying is conducted on the particles to a certain degree through natural flowing of the air, the moisture content in the particles is effectively reduced, and the service life of the particles is prolonged. And the phenomenon of adhesion among particles is avoided, the particles which are relatively dry and easy to process are provided for subsequent processing, and the processing efficiency and the product quality are improved.

Description

TECHNICAL FIELD

[0001] The utility model discloses granule processing technical field, concretely is a recycled plastic granule impurity removal device. BACKGROUND

[0002] In the field of plastic recycling, the production of recycled plastic particles is a key link, however, during the production process of recycled plastic particles, there are often many small-diameter inferior impurities, the existence of these impurities not only reduces the purity of recycled plastic particles, but also affects the subsequent processing performance and product quality, therefore, the fine impurities need to be removed, the existing recycled plastic particle impurity removal device mostly adopts single-pass processing, that is, the granule is directly discharged after one-time passing through the impurity removal equipment, this processing method often cannot guarantee sufficient impurity removal effect, at the same time, since the recycled plastic particles may contain certain moisture during the production process, the particles are prone to adhere to each other, which not only increases the difficulty of impurity removal, but also may affect the smooth progress of the subsequent processing process, in view of the above problems, an impurity removal device capable of removing impurities in plastic particles and realizing the cyclic conveying and natural air drying of the granule is required to meet the use requirement. SUMMARY

[0003] The utility model solves the technical problem in the prior art, provides a kind of granule after regeneration can be impurity removal, and can be cyclicly fed after feeding, maximize to improve the effect of impurity removal, and granule can be contacted with air constantly during impurity removal, to a certain extent, it is the recycled plastic particle impurity removal device that plays natural air drying to granule, avoids its plastic.

[0004] The technical problem to be solved by the utility model is solved by the following technical scheme, a recycled plastic particle impurity removal device, the impurity removal device includes;

[0005] Mounting frame, impurity removal cylinder is rotationally installed on mounting frame, impurity removal cylinder is horizontally inclinedly arranged, feeding port is formed on the top outer periphery of one end of impurity removal cylinder, and circulating discharge port and total discharge port are formed on the bottom outer periphery of the other end, when feeding port is located directly above impurity removal cylinder, circulating discharge port and total discharge port are located directly below impurity removal cylinder, and the height of circulating discharge port is higher than the height of total discharge port, screen is installed on the outer periphery and both end faces of impurity removal cylinder at intervals;

[0006] The circulating feeding mechanism comprises a horizontal screw feeder and an inclined screw feeder, the inlet end of the horizontal screw feeder is located directly below the lowest position of the circulating discharge port of the impurity removal cylinder, the feeding inlet of the inclined screw feeder is located at the outlet end of the horizontal screw feeder, and the discharging outlet of the inclined screw feeder is located directly above the highest position of the feeding inlet of the impurity removal cylinder, so that the regenerated plastic particles are circulated and conveyed between the impurity removal cylinder, the horizontal screw feeder and the inclined screw feeder.

[0007] The impurity bearing box is arranged beside the mounting frame and directly below the impurity removal cylinder, so that the impurities falling in the impurity removal cylinder are received.

[0008] The technical problems to be solved by the utility model can also be solved by the following technical solutions, the mounting frame comprises a pair of vertical plates, the two vertical plates are arranged at intervals, inclined through holes are formed in the two vertical plates, mounting shafts are fixedly arranged at the centers of the two end surfaces of the impurity removal cylinder, the axis of the through hole, the axis of the impurity removal cylinder and the axis of the mounting shaft are collinear, and rotating bearings for relative rotation between the outer circumferential surface of the mounting shaft and the inner circumferential surface of the through hole are arranged therebetween.

[0009] The technical problems to be solved by the utility model can also be solved by the following technical solutions, the mounting shaft of the above-mentioned regenerated plastic particle impurity removal device, one end of the mounting shaft extends to the outside of the vertical plate, an external gear is fixedly arranged on the outer circumferential surface of the extended part, a rotating power mechanism is arranged on the vertical plate, and the power output end of the rotating power mechanism is in meshing transmission with the external gear through a toothed belt, so as to drive the impurity removal cylinder to rotate.

[0010] The technical problems to be solved by the utility model can also be solved by the following technical solutions, the regenerated plastic particle impurity removal device, the angle between the axis of the impurity removal cylinder and the horizontal plane is 2°-5°.

[0011] The technical problems to be solved by the utility model can also be solved by the following technical solutions, the regenerated plastic particle impurity removal device, a pair of angle steel supports are fixedly arranged on the middle side wall of the inclined screw feeder, and the pair of angle steel supports are symmetrically arranged on the middle side wall of the inclined screw feeder.

[0012] The technical problems to be solved by the utility model can also be solved by the following technical solutions, the regenerated plastic particle impurity removal device, a feeding opening for feeding is further arranged on the outer circumferential surface of the bottom of the inclined screw feeder.

[0013] The technical problem to be solved by the utility model can also be implemented through the following technical scheme, the above-mentioned regenerated plastic particle impurity removal device is hinged with switch doors at the circulating discharge port and the total discharge port of the impurity removal cylinder.

[0014] Compared with the prior art, the utility model has the beneficial technical effects that:

[0015] (1) The impurity removal cylinder on the mounting frame can remove impurities from the granular material, and the outer periphery of the impurity removal cylinder is embedded with a screen, and the mesh holes on the screen can make the particles directly contact with the external air, and the particles are naturally dried to a certain extent by using the natural flow of air, effectively reducing the moisture content of the particles, avoiding the adhesion phenomenon between the particles, providing more dry and easy-to-handle particles for subsequent processing, and improving the processing efficiency and product quality.

[0016] (2) If the loading is too much after one-time impurity removal and the impurity removal efficiency is low, the added circulating feeding mechanism can temporarily store part of the overloaded material, that is, the material in the impurity removal cylinder is temporarily stored in the horizontal screw feeder and the inclined screw feeder, avoiding the influence of the large amount of particles on the impurity removal effect. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 is a structural schematic view of the utility model;

[0018] Fig. 2 is a front view structural schematic view of the impurity removal cylinder of the utility model.

[0019] Reference signs: 1, impurity removal cylinder; 2, feeding port; 3, circulating discharge port; 4, total discharge port; 5, screen; 6, vertical plate; 7, mounting shaft; 8, horizontal screw feeder; 9, inclined screw feeder; 10, feeding port; 11, angle steel support; 12, switch door; 13, impurity bearing box. DETAILED DESCRIPTION

[0020] The specific technical scheme of the utility model is further described below with reference to the drawings, so that those skilled in the art can further understand the utility model without limiting the rights thereof.

[0021] Embodiment 1, refer to Figs. 1-2 A regenerated plastic particle impurity removal device, the impurity removal device comprises;

[0022] The installation frame is provided with a pair of vertical plates 6, which are arranged in a trapezoidal plate shape. A through hole is formed on the vertical plates 6, which is a circular hole. The installation shaft 7 is arranged at the center of the two ends of the impurity removal cylinder 1 and is in a cylindrical shape. The axis of the through hole, the axis of the impurity removal cylinder 1 and the axis of the installation shaft 7 are in a straight line. A rotating bearing is arranged between the outer periphery of the installation shaft 7 and the inner periphery of the through hole, which allows the rotation of the two. An external gear is arranged on the outer periphery of the extended part of the installation shaft 7. A rotating power mechanism (not shown in the figure) is arranged on the vertical plate 6. The rotating power mechanism can be a servo motor. The power output end of the rotating power mechanism is connected to the external gear through a gear belt, which drives the rotation of the impurity removal cylinder 1.

[0023] The installation frame is provided with a pair of vertical plates 6, which are arranged in a trapezoidal plate shape. A through hole is formed on the vertical plates 6, which is a circular hole. The installation shaft 7 is arranged at the center of the two ends of the impurity removal cylinder 1 and is in a cylindrical shape. The axis of the through hole, the axis of the impurity removal cylinder 1 and the axis of the installation shaft 7 are in a straight line. A rotating bearing is arranged between the outer periphery of the installation shaft 7 and the inner periphery of the through hole, which allows the rotation of the two. An external gear is arranged on the outer periphery of the extended part of the installation shaft 7. A rotating power mechanism (not shown in the figure) is arranged on the vertical plate 6. The rotating power mechanism can be a servo motor. The power output end of the rotating power mechanism is connected to the external gear through a gear belt, which drives the rotation of the impurity removal cylinder 1.

[0024] In order to improve the impurity removal effect of the regenerated particles, a circulating feeding mechanism is additionally arranged, which includes a horizontal screw feeder 8 and an inclined screw feeder 9. The inlet end of the horizontal screw feeder 8 is arranged below the lowest position of the circulating discharge port 3 of the impurity removal cylinder 1. The inlet of the inclined screw feeder 9 is arranged at the outlet end of the horizontal screw feeder 8. The outlet of the inclined screw feeder 9 is arranged above the highest position of the feeding port 2 of the impurity removal cylinder 1. In this way, the regenerated plastic particles are circulated and transported between the impurity removal cylinder 1, the horizontal screw feeder 8 and the inclined screw feeder 9. A feeding port 10 is arranged on the outer periphery of the bottom of the inclined screw feeder 9 for feeding.

[0025] This makes the granular material added to the inclined screw feeder 9 by the feeding port 10 can be added to the feed port 2 of the impurity removal drum 1 along with the screw feeding, on the one hand, when the impurity removal drum 1 stops rotating, the circulating discharge port 3 is opened, so that the granular material falls into the horizontal screw feeder 8, is transported to the inlet end of the inclined screw feeder 9 through the horizontal screw feeder 8, and is transported again by the inclined screw feeder 9 to the impurity removal drum 1 for secondary impurity removal, on the other hand, if the first impurity removal finds that the feeding is too much and the impurity removal efficiency is low, the added circulating feeding mechanism can temporarily store part of the overloaded material, that is, the material in the impurity removal drum 1 enters the horizontal screw feeder 8 and the inclined screw feeder 9 for temporary storage, avoiding that the too large amount of granular material for one-time impurity removal affects the impurity removal effect;

[0026] The inclined screw feeder 9 is fixed with a pair of angle steel supports 11 on the middle side wall, the angle steel supports 11 are formed in a substantially plate-shaped structure, and the pair of angle steel supports 11 are symmetrically arranged on the middle side wall of the inclined screw feeder 9;

[0027] The circulating discharge port 3 and the total discharge port 4 of the impurity removal drum 1 are hinged with a switch door 12, the switch door 12 can be an arc-shaped plate structure, and the worker can climb to the side of the impurity removal drum 1 to open or close the switch door 12 in cooperation with the man ladder equipment in the factory area;

[0028] The impurity bearing box 13 is formed in a substantially square box body structure, which is arranged beside the mounting frame and directly below the impurity removal drum 1, so as to bear the impurities falling from the impurity removal drum 1.

[0029] The regenerated plastic granule impurity removal device in example 1 is used as follows:

[0030] (1) Feeding stage: Place the impurity bearing box 13 below the impurity removal drum 1 to ensure that it can bear the impurities falling from the impurity removal drum 1, open the switch door at the feed port 2, and slowly add the regenerated plastic granules into the inclined screw feeder 9 through the feeding port 10 of the inclined screw feeder 9, the granular material enters the impurity removal drum 1 through the inclined screw feeder 9, and the switch door at the feed port 2 is closed after the feeding is completed;

[0031] (2) The impurity removal stage: start the rotating power mechanism, and drive the impurity removal roller 1 to rotate through the toothed belt. At this time, the granular materials roll and collide in the impurity removal roller 1 along with the rotation of the roller, and the impurities with a particle size smaller than the mesh of the screen 5 pass through the screen 5 and fall into the impurity bearing box 13, while the remaining granular materials continue to stay in the impurity removal roller 1. If the first impurity removal is found to be too much and the impurity removal efficiency is low, the additional circulating feeding mechanism can temporarily store part of the overloaded materials, that is, the materials in the impurity removal roller 1 enter the horizontal spiral feeder 8 and the inclined spiral feeder 9 for temporary storage, so as to avoid the excessive amount of granular materials in the one-time impurity removal affecting the impurity removal effect;

[0032] (3) The discharging stage: when the impurity removal reaches the predetermined effect, the rotating power mechanism is closed, the impurity removal roller 1 stops rotating, the total discharge port 4 is kept facing the ground, the switch door of the total discharge port 4 of the impurity removal roller 1 is opened, and the granular materials can be discharged from the total discharge port 4. For the granular materials that are not discharged, a rake can be used for manual discharging.

Claims

1. A device for removing impurities from recycled plastic particles, characterized by: The impurity removing device comprises: The mounting frame is provided with the impurity removing drum which is horizontally installed and horizontally inclined, and the top outer circumferential surface of one end of the impurity removing drum is provided with a feeding port, and the bottom outer circumferential surface of the other end is provided with a circulating discharge port and a total discharge port; when the feeding port is located directly above the impurity removing drum, the circulating discharge port and the total discharge port are located directly below the impurity removing drum, and the height of the circulating discharge port is higher than that of the total discharge port; and the outer circumferential surface and the two end surfaces of the impurity removing drum are both provided with screen meshes which are installed at intervals; The circulating feeding mechanism comprises a horizontal screw feeding machine and an inclined screw feeding machine, the inlet end of the horizontal screw feeding machine is located directly below the lowest position of the circulating discharge port of the impurity removing drum, the feeding port of the inclined screw feeding machine is located at the outlet end of the horizontal screw feeding machine, and the discharge port of the inclined screw feeding machine is located directly above the highest position of the feeding port of the impurity removing drum, so that the regenerated plastic particles are circulated and conveyed between the impurity removing drum, the horizontal screw feeding machine and the inclined screw feeding machine; The impurity bearing box is arranged on the side of the mounting frame and directly below the impurity removing drum, so as to bear the impurities falling from the impurity removing drum.

2. The device for removing impurities from recycled plastic particles according to claim 1, characterized in that: The mounting frame comprises a pair of vertical plates which are arranged at intervals, and the vertical plates are provided with inclined through holes; the mounting shaft is fixedly arranged at the center of the two end surfaces of the impurity removing drum, and the axis of the through hole, the axis of the impurity removing drum and the axis of the mounting shaft are collinear; and the rotating bearing which allows the relative rotation between the outer circumferential surface of the mounting shaft and the inner circumferential surface of the through hole is arranged between the outer circumferential surface of the mounting shaft and the inner circumferential surface of the through hole.

3. The device for removing impurities from recycled plastic particles according to claim 2, characterized in that: One end of the mounting shaft extends to the outside of the vertical plate, and the outer circumferential surface of the extended part is fixedly provided with an external gear; the rotating power mechanism is arranged on the vertical plate, and the power output end of the rotating power mechanism is in meshing transmission with the external gear through a toothed belt, so as to drive the impurity removing drum to rotate.

4. The device for removing impurities from recycled plastic particles according to claim 1, characterized in that: The angle between the axis of the impurity removing drum and the horizontal plane is 2°-5°.

5. The device for removing impurities from recycled plastic particles according to claim 1, characterized in that: A pair of angle steel supports are fixedly arranged on the middle side wall of the inclined screw feeding machine.

6. The device for removing impurities from recycled plastic particles according to claim 1, characterized in that: The bottom outer circumferential surface of the inclined screw feeding machine is further provided with a feeding port for feeding.

7. The device for removing impurities from recycled plastic particles according to claim 1, characterized in that: The circulating discharge port and the total discharge port of the impurity removing drum are hingedly provided with switch doors.

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