Plastic particle mixed metal screening device
By installing flexible magnetic plates and scraper assemblies on the conveyor belt, a plastic particle mixing and metal screening device has been developed, which solves the problem of magnetic separators needing to be stopped to remove metal impurities. This enables continuous screening without stopping the machine, thus improving production efficiency.
Patent Information
- Application Number
- CN202423040965.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-12-10
AI Technical Summary
In existing technologies, magnetic separators need to be stopped after prolonged use to remove metal impurities from the surface of the magnetic rollers, which affects the continuity of plastic granule production and leads to reduced production efficiency.
A plastic particle mixed with metal screening device is designed. Flexible magnetic sheets are attached to a horizontally distributed conveyor belt, combined with scrapers and sweeping components to separate plastic particles and metal impurities. Screening can be achieved without stopping the machine through the continuous movement of the conveyor belt.
It enables continuous screening and removal of metal impurities in plastic granules, improves production efficiency, avoids downtime for processing, and ensures production continuity.
Smart Images
Figure CN223519978U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of plastic processing equipment, especially to a plastic particle mixed metal screening device. BACKGROUND
[0002] At present, plastic particles may be mixed with some metal particle impurities in the production process, which directly affects the quality of the plastic particles and subsequent use, so it is necessary to remove the metal impurities.
[0003] The existing method is generally to put a large amount of plastic particles into a magnetic separator, and use the electromagnet in the device to magnetically attract metal impurities. With the long-time use of the magnetic separator, the magnetic roller surface inside the magnetic separator often has some metal impurities adsorbed. In order to avoid the re-pollution of the plastic particles by the adsorbed and collected metal impurities, the electromagnet inside the magnetic separator needs to be powered off to make the magnetic roller lose magnetism, so as to remove the metal impurities on the surface of the magnetic roller. However, this will cause the need to stop production, affect the continuity of the whole production, and reduce the production efficiency of the plastic particles.
[0004] Therefore, there is an urgent need for a screening device that can continuously screen and remove metal impurities without stopping production. SUMMARY
[0005] The utility model aims at providing a plastic particle mixed metal screening device, which realizes continuous screening and removal of metal impurities without stopping production, and solves the problems mentioned in the background technology.
[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:
[0007] A plastic particle mixed metal screening device, comprising a box body, a pretreatment chamber located at the upper part of the box body, and a metal separation chamber located at the lower part of the box body, the metal separation chamber is provided with a metal separation mechanism, a plastic particle discharge hopper and a metal impurity discharge hopper, the metal separation mechanism comprises a horizontally distributed conveyor belt, drive rollers distributed at both ends of the conveyor belt, and a motor for driving the rotation of the drive rollers, the surface of the conveyor belt is attached with flexible magnetic pieces, the plastic particle discharge hopper is located below one end of the conveyor belt, the metal impurity discharge hopper is located below the other end of the conveyor belt, and a scraper is provided above the metal impurity discharge hopper and abuts against the surface of the conveyor belt; the top of the pretreatment chamber is provided with a feed hopper in communication, the bottom of the pretreatment chamber is provided with a discharge pipe extending into the metal separation chamber, and the lower end of the discharge pipe is located directly above one end of the conveyor belt away from the plastic particle discharge hopper.
[0008] Further, the two side edges of the conveyor belt are respectively provided with protruding distribution of the flange.
[0009] Further, the metal separation chamber is provided with a uniform sweeping assembly, which comprises a compression roller rotatably arranged above the conveying belt, and the surface of the compression roller is in abutment with the surface of the baffle.
[0010] Further, the lower end of the discharge pipe is provided with a dispersion assembly, which comprises a tapered flow divider and a connecting rod connected between the flow divider and the discharge pipe.
[0011] Further, the flow divider is in the shape of a tapered cone.
[0012] Further, the inner side of the flow divider is fixed with a vibration motor.
[0013] Further, the inside of the pretreatment chamber is provided with a centrally distributed inner cylinder, which comprises an upper conical inner cylinder segment and a lower cylindrical inner cylinder segment, and the inner cylinder is connected with the inner wall of the pretreatment chamber through a support arm, and a plastic guiding channel is formed between the outer wall of the inner cylinder and the inner wall of the pretreatment chamber.
[0014] Further, the surface of the inner cylinder is distributed with air holes, and the inner cylinder is connected with a dust suction assembly, which comprises a suction pipe, a dust filter and a dust fan, and the two ends of the dust filter are respectively in communication with the suction pipe and the dust fan, and the end of the suction pipe away from the dust filter is in communication with the inner cylinder.
[0015] Further, the upper end of the discharge pipe is provided with a valve.
[0016] Further, the bottom of the box body is provided with a support foot.
[0017] Compared with the prior art, the plastic particle mixed metal screening device has the following beneficial effects:
[0018] The structure of the device is distributed vertically, the horizontally distributed conveying belt is arranged, and flexible magnetic pieces are attached to the conveying belt, so that the plastic particles falling from the pretreatment chamber can be conveyed to the plastic particle discharge hopper below; the mixed metal impurities in the plastic particles are adsorbed by the magnetic pieces on the conveying belt and are scraped off by the scraper and fall into the metal impurity discharge hopper when the conveying belt is wound to the lower side, so that the mixed metal impurities in the plastic particles are continuously screened and removed, the adsorbed metal impurities are simultaneously removed, and the production efficiency is greatly improved. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings described in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.
[0020] Figure 1 It is a structural schematic diagram of the present application;
[0021] Figure 2 It is a cross-sectional structural schematic diagram of the conveyor belt;
[0022] Figure 3 It is a schematic diagram of the dispersion assembly fixed on the discharge pipe;
[0023] Figure 4 It is a structural schematic diagram of the dust suction assembly.
[0024] The reference signs are as follows: 1, box body; 11, pretreatment chamber; 12, metal separation chamber; 13, plastic particle discharge hopper; 14, metal impurity discharge hopper; 15, feeding hopper; 16, discharge pipe; 161, valve; 17, plastic introduction channel; 18, supporting leg; 2, conveyor belt; 21, magnetic attraction piece; 22, baffle; 3, transmission roller; 4, scraper; 5, compression roller; 6, dispersion assembly; 61, flow dividing piece; 62, connecting rod; 63, vibration motor; 7, inner cylinder; 71, upper section of inner cylinder; 72, lower section of inner cylinder; 8, supporting arm; 9, dust suction assembly; 91, suction pipe; 92, dust filter; 93, dust fan. DETAILED DESCRIPTION
[0025] The technical solutions of the present application will be described in detail below by combining the embodiments with the drawings. Obviously, the described embodiments are only some embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.
[0026] Please refer to Figures 1-4The embodiment provides a plastic particle mixed metal screening device, which comprises a box body 1, a pretreatment chamber 11 located at the upper portion of the box body 1 and a metal separation chamber 12 located at the lower portion of the box body 1. The metal separation chamber 12 is provided with a metal separation mechanism, a plastic particle discharge hopper 13 and a metal impurity discharge hopper 14. The metal separation mechanism comprises a horizontally distributed conveying belt 2, transmission rollers 3 distributed at both ends of the conveying belt 2 and a motor for driving the transmission rollers 3 to rotate. The surface of the conveying belt 2 is attached with flexible magnetic pieces 21, which can adsorb the metal impurities mixed in the plastic particles. The plastic particle discharge hopper 13 is located below one end of the conveying belt 2, the metal impurity discharge hopper 14 is located below the other end of the conveying belt 2, and the metal impurity discharge hopper 14 is provided with a scraper 4 abutting against the surface of the conveying belt 2. The conveying belt continuously moves in the same direction under the driving of the motor, and the metal impurities adsorbed on the conveying belt can be timely scraped off through the scraper. The top of the pretreatment chamber 11 is provided with a feeding hopper 15 for feeding the plastic particles to be treated. The bottom of the pretreatment chamber 11 is provided with a discharge pipe 16 extending into the metal separation chamber 12, and the lower end of the discharge pipe 16 is located directly above one end of the conveying belt 2 away from the plastic particle discharge hopper 13. In this way, an up-down distributed structure is provided, the plastic particles falling from the pretreatment chamber can be conveyed to the plastic particle discharge hopper below through the horizontally distributed conveying belt and the flexible magnetic pieces attached to the conveying belt, the metal impurities mixed in the plastic particles can be adsorbed by the magnetic pieces on the conveying belt and scraped off by the scraper when the conveying belt moves to the lower side, thereby realizing continuous screening and removal of the metal impurities mixed in the plastic particles and synchronous removal of the adsorbed metal impurities, without stopping for cleaning and treatment, and greatly improving the production efficiency.
[0027] In some specific embodiments, as shown in Figure 2 The two side edges of the conveying belt 2 are respectively provided with protruding distribution of the side edges 22, so that when the plastic particles fall on the conveying belt through the discharge pipe, they will not fall out of the conveying belt.
[0028] As an improved embodiment, the metal separation chamber 12 is provided with a sweeping and leveling assembly, which can stir and spread the plastic particles falling on the conveying belt, so as to facilitate the adsorption and removal of the metal impurities. Specifically, referring to Figure 1 And Figure 2 The sweeping and leveling assembly comprises a press roller 5 rotatably arranged above the conveying belt 2, and the surface of the press roller 5 abuts against the surface of the side edges 22, so that the press roller can rotate with the movement of the conveying belt, and the rotation of the press roller and the movement of the conveying belt cooperate to realize the spreading and leveling of the plastic particles.
[0029] In some embodiments, the lower end of the discharge pipe 16 is provided with a dispersing assembly 6, which can make the plastic particles fall more dispersedly on the conveying belt, and facilitate the magnetic attraction pieces on the conveying belt to fully attract the metal impurities. Specifically, as shown in Figure 1 and Figure 3 , the dispersing assembly 6 includes a conical flow divider 61 and a connecting rod 62 connected between the flow divider 61 and the discharge pipe 16. Preferably, the flow divider 61 is in the shape of a cone with a small upper end and a large lower end.
[0030] As an improved embodiment, a vibration motor 63 is fixed to the inner side of the flow divider 61, and the vibration of the vibration motor can promote the plastic particles to uniformly fall on the conveying belt.
[0031] In some specific embodiments, referring to Figure 1 , the inside of the pretreatment chamber 11 is provided with a centrally distributed inner cylinder 7, which includes an upper conical inner cylinder upper section 71 and a lower cylindrical inner cylinder lower section 72. The inner cylinder 7 is connected to the inner wall of the pretreatment chamber 11 through a support arm 8, and an annular plastic introduction passage 17 is formed between the outer wall of the inner cylinder 7 and the inner wall of the pretreatment chamber 11. In this way, the plastic particles can better separate the dust impurities adhering to the surface during the falling process from top to bottom, so as to be collected and removed.
[0032] More specifically, referring to Figure 1 and Figure 4 , the surface of the inner cylinder 7 is provided with air holes, and the inner cylinder 7 is connected with a dust suction assembly 9, which includes an air suction pipe 91, a dust filter 92 and an air suction fan 93. The two ends of the dust filter 92 are respectively communicated with the air suction pipe 91 and the air suction fan 93, and the end of the air suction pipe 91 away from the dust filter 92 is communicated with the inner cylinder 7. Under the suction action of the air suction fan, the dust impurities separated by the plastic particles when passing through the plastic introduction passage can be discharged, thereby improving the purity of the plastic particles.
[0033] In some specific embodiments, referring to Figure 1 , the upper end of the discharge pipe 16 is provided with a valve 161, which can facilitate the adjustment and control of the on-off of the discharge pipe, and better control the speed of the metal screening process. Preferably, the valve 161 is an electrically controlled valve.
[0034] In some specific embodiments, referring to Figure 1 , the bottom of the box body 1 is provided with support feet 18. The support feet 18 are symmetrically distributed, so as to more stably support the entire device.
[0035] In addition, in order to better control the process of metal screening removal, a control device is further arranged, and the control device is electrically connected with the valve 161, the motor of the conveying belt, the vibration motor 63, the air extractor 93 and the power supply, respectively.
[0036] The working principle of the utility model is as follows: as shown in the figure, Figure 1 Figure 1 The plastic particles are guided to fall toward the conveying belt 2 through the discharge pipe 16 and are dispersed by the flow dividing piece 61 to avoid accumulation. The plastic particles falling on the conveying belt 2 are transmitted along with the conveying belt 2 and are uniformly laid and spread by the compression roller 5 when passing through the compression roller 5, so that the magnetic attraction piece 21 on the conveying belt 2 can fully adsorb the metal impurities. Finally, the plastic particles are directly dropped into the plastic particle discharge hopper 13 under the action of gravity when being transmitted to the upper side of the plastic particle discharge hopper 13, while the metal impurities are adsorbed by the magnetic attraction piece 21 and turned to the lower side and continue to move until moving to the upper side of the metal impurity discharge hopper 14 and being scraped off by the scraper 4. In this way, the mixed metal impurities in the plastic particles are continuously screened and removed, and the adsorbed metal impurities are simultaneously removed without stopping for cleaning and processing, which greatly improves the production efficiency.
[0037] The above embodiments only exemplarily illustrate the concept and technical solution of the utility model, and are not used to limit the utility model. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the utility model. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the utility model should be covered by the claims of the utility model.
[0038] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A plastic particle mixed metal screening device comprising a housing, a pre-treatment chamber located at an upper portion of the housing, and a metal separation chamber located at a lower portion of the housing, characterized in that, The metal separation chamber is provided with a metal separation mechanism, a plastic particle discharge hopper and a metal impurity discharge hopper, the metal separation mechanism comprises a horizontally distributed conveying belt, drive rollers distributed at both ends of the conveying belt and a motor for driving the drive rollers to rotate, the surface of the conveying belt is attached with flexible magnetic pieces, the plastic particle discharge hopper is located below one end of the conveying belt, the metal impurity discharge hopper is located below the other end of the conveying belt, and a scraper abutting against the surface of the conveying belt is arranged above the metal impurity discharge hopper; the top of the pretreatment chamber is communicated with a feeding hopper, and the bottom of the pretreatment chamber is communicated with a discharge pipe extending into the metal separation chamber, and the lower end of the discharge pipe is located directly above one end of the conveying belt away from the plastic particle discharge hopper.
2. The plastic pellet hybrid metal screening apparatus of claim 1, wherein, The two side edges of the conveying belt are respectively provided with protruding flanges.
3. The plastic pellet hybrid metal screening apparatus of claim 2, wherein, The metal separation chamber is provided with a uniform sweeping assembly, the uniform sweeping assembly comprises a press roller rotatably arranged above the conveying belt, and the surface of the press roller abuts against the surface of the flange.
4. The plastic pellet hybrid metal screening apparatus of claim 1, wherein, The lower end of the discharge pipe is provided with a dispersion assembly, the dispersion assembly comprises a conical flow divider and a connecting rod connected between the flow divider and the discharge pipe.
5. The plastic pellet hybrid metal screening apparatus of claim 4, wherein, The flow divider is in the shape of a conical body with a small upper part and a large lower part.
6. The plastic pellet mixed metal screening apparatus of claim 4, wherein, A vibration motor is fixed to the inner side of the flow divider.
7. The plastic pellet hybrid metal screening apparatus of claim 1, wherein, The inside of the pretreatment chamber is provided with a centrally distributed inner cylinder, the inner cylinder comprises an upper conical inner cylinder segment and a lower cylindrical inner cylinder segment, the inner cylinder is connected with the inner wall of the pretreatment chamber through support arms, and an annular plastic guiding channel is formed between the outer wall of the inner cylinder and the inner wall of the pretreatment chamber.
8. The plastic particle mixed metal screening apparatus of claim 7, wherein, The surface of the inner cylinder is distributed with air holes, and the inner cylinder is connected with a dust suction assembly, the dust suction assembly comprises an air suction pipe, a dust filter and an air suction fan, the two ends of the dust filter are respectively communicated with the air suction pipe and the air suction fan, and the end of the air suction pipe away from the dust filter is communicated with the inner cylinder.
9. The plastic pellet hybrid metal screening apparatus of claim 1, wherein, The upper end of the discharge pipe is provided with a valve.
10. The plastic particle mixed metal screening apparatus of any one of claims 1-9, wherein, The bottom of the box body is provided with support feet.