Horizontal paper-plastic separator

By using technical means of crushing, humidification, centrifugal separation, jet pushing and electrostatic adsorption in the paper-plastic separator, the problem of incomplete separation of paper-plastic mixtures in the prior art is solved, efficient and accurate paper-plastic separation is achieved, and the quality and purity of the recycled substances are improved.

CN119610475AInactive Publication Date: 2025-03-14JIANGSU HONGXIN ENVIRONMENTAL PROTECTION EQUIP MFG CO LTD
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Patent Information

Application Number
CN202411971341.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2025-03-14
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing paper-plastic separators are difficult to efficiently process paper-plastic mixtures of different types, shapes and density, resulting in paper and plastic still sticking together during the separation process, forming residues, affecting the separation effect and the purity of the material.

Method used

A horizontal paper-plastic separator is designed, using comprehensive technical means of crushing, humidification, centrifugal separation, jet pushing and electrostatic adsorption. Increase the material contact surface by crushing, improve the separation effect of paper-plastic by humidification and centrifugal separation, and ensure high purity of the separated material through jet pushing and electrostatic adsorption.

Benefits of technology

It improves the efficiency and accuracy of paper-plastic separation, reduces energy consumption, improves the quality of recycled substances, solves the problems of low plastic recovery and incomplete separation during the traditional paper-plastic separation process, and ensures the high purity of the separated materials and the high quality of the recycled substances.

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Abstract

A horizontal paper-plastic separator comprises a horizontal separation bin, an auxiliary separation mechanism and a waste crushing mechanism. The auxiliary separation mechanism and the waste crushing mechanism are arranged on the horizontal separation bin, and the waste crushing mechanism is configured to crush a paper-plastic mixture; a centrifugal wet type separation assembly is arranged in the horizontal type separation bin, the auxiliary separation mechanism comprises air injection pushing assemblies and a plastic collection belt, the air injection pushing assemblies are arranged on the two sides of the centrifugal wet type separation assembly, adsorption pieces are arranged on the plastic collection belt, and static electricity is carried on the adsorption pieces. The material contact surface is increased through crushing, and the paper-plastic separation effect is improved by means of humidification and centrifugal separation; finally, the high purity of the separated materials is ensured through air injection pushing and electrostatic adsorption; the paper-plastic separation efficiency and accuracy are improved, the energy consumption is reduced, and the quality of recycled materials is improved.
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Description

Technical Field

[0001] The invention belongs to the technical field of paper-plastic separation, and specifically refers to a horizontal paper-plastic separator. Background Art

[0002] In waste recycling, packaging materials, catering packaging and packaging paper and plastic materials of daily consumer goods are often mixed together. The recycling of paper-plastic mixture is difficult. The paper-plastic separator, as a device specially used to process paper-plastic mixture, can crush the waste and separate plastic and pulp.

[0003] Existing paper-plastic separators mainly separate paper and plastic by centrifugal separation, vibration sorting and other methods. These traditional devices usually rely on mechanical separation force and are difficult to efficiently process paper-plastic mixtures of different types, shapes and densities, resulting in paper and plastic still adhering to each other during the separation process, forming residues, which affects the separation effect and the purity of the material. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a horizontal paper-plastic separator to at least partially solve the above technical problems.

[0005] The technical solution adopted by the present invention is as follows: The present invention proposes a horizontal paper-plastic separator, comprising a horizontal separation bin, an auxiliary separation mechanism and a waste crushing mechanism, wherein the auxiliary separation mechanism and the waste crushing mechanism are arranged on the horizontal separation bin, and the waste crushing mechanism is configured to crush the paper-plastic mixture; a centrifugal wet separation component is arranged inside the horizontal separation bin, and the auxiliary separation mechanism comprises a jet propulsion component and a plastic collection belt, wherein the jet propulsion component is arranged on both sides of the centrifugal wet separation component, and an adsorption sheet is arranged on the plastic collection belt; and the adsorption sheet has static electricity.

[0006] Furthermore, the horizontal separation bin is provided with a side plastic flow channel, and the plastic collection belt is arranged at the top of the side plastic flow channel; the jet propulsion assembly includes an air compressor and a fixed nozzle, the fixed nozzle is arranged inside the horizontal separation bin, the air compressor and the fixed nozzle are connected, and the pressure relief outlet is provided with an air nozzle, and the air nozzle is located below the side plastic flow channel.

[0007] Furthermore, the auxiliary separation mechanism also includes a pressure relief outlet, which is arranged at the top of the side plastic flow channel and has an air hole.

[0008] Furthermore, the auxiliary separation mechanism also includes a discharge paddle, which is arranged below the plastic collection belt and is configured to scrape off the plastic adsorbed by the adsorption sheet; the centrifugal wet separation component is provided with a plastic collection bin, which is located at the top of the side plastic flow channel, and the plastic collection bin is provided with a plastic discharge port.

[0009] Furthermore, the centrifugal wet separation component includes a rotating shaft, a humidifying blade and a centrifugal motor. The rotating shaft is rotatably arranged inside the horizontal separation bin, the humidifying blade is arranged on the rotating shaft, and the centrifugal motor is configured to drive the rotating shaft to rotate; the humidifying blade is configured to humidify the paper-plastic mixture in the horizontal separation bin.

[0010] Furthermore, a bottom paddle outlet is provided at the bottom of the horizontal separation bin, and the bottom paddle outlet is used to discharge the wetted pulp.

[0011] Furthermore, a top feed port is provided at the top of the horizontal separation bin, and the waste crushing mechanism is arranged in the top feed port.

[0012] Furthermore, the waste crushing mechanism includes a crushing bin, a crushing roller and a crushing motor, which are arranged on the top feed port, the crushing roller is rotatably arranged inside the crushing bin, the crushing motor is configured to drive the crushing roller to rotate, and a feed hopper is provided on the top of the crushing bin.

[0013] Compared with the prior art, the present invention has the following advantages: The present invention first increases the contact surface of the materials by crushing, improves the separation effect of paper and plastics by means of humidification and centrifugal separation, and finally ensures the high purity of the separated materials by jet propulsion and electrostatic adsorption; it can improve the efficiency and accuracy of paper and plastic separation, reduce energy consumption, and improve the quality of recyclables; at the same time, the present invention effectively solves the problems of low plastic recovery rate and incomplete separation in the traditional paper and plastic separation process through jet propulsion components, side plastic flow channels and electrostatic adsorption mechanisms, improves the paper and plastic separation efficiency, and at the same time ensures the purity and quality of the recyclables, providing more efficient and accurate waste recovery and resource reuse equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A three-dimensional diagram of a horizontal paper-plastic separator proposed in an embodiment of the present invention; Figure 2 A front view of a horizontal paper-plastic separator proposed in an embodiment of the present invention; Figure 3 A left side view of a horizontal paper-plastic separator provided in an embodiment of the present invention; Figure 4 A top view of a horizontal paper-plastic separator proposed in an embodiment of the present invention; Figure 5 for Figure 4 The cross-sectional view along the AA direction; Figure 6 for Figure 4 The cross-sectional view along the BB direction; Figure 7 for Figure 6 The enlarged view at center Ⅰ; Figure 8 for Figure 6 Magnified view at center II; Fig. 9 An exploded view of a horizontal paper-plastic separator proposed in an embodiment of the present invention; Fig.10 for Fig. 9 Magnified view of point III in the middle.

[0015] Among them, 100, horizontal separation bin, 200, auxiliary separation mechanism, 300, waste crushing mechanism, 101, centrifugal wet separation component, 102, top feed port, 103, bottom paddle outlet, 104, side plastic flow channel, 105, plastic collection bin, 106, plastic discharge port, 111, rotating shaft, 112, humidifying blades, 113, centrifugal motor, 201, jet propulsion component, 202, pressure relief outlet, 203, plastic collection belt, 204, discharge paddle, 205, air hole, 206, adsorption sheet, 211, air compressor, 212, fixed nozzle, 213, air nozzle, 301, crushing bin, 302, crushing roller, 303, crushing motor, 304, feed hopper.

[0016] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0018] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0019] like Figure 1-Figure 10 As shown, this embodiment includes a horizontal separation bin 100, an auxiliary separation mechanism 200 and a waste crushing mechanism 300. The auxiliary separation mechanism 200 and the waste crushing mechanism 300 are respectively arranged on the horizontal separation bin 100 to form an integrated paper-plastic separation system; the waste crushing mechanism 300 is used to preliminarily crush the paper-plastic mixture, and the crushed paper-plastic mixture is sent to the horizontal separation bin 100 and enters the centrifugal wet separation component 101 for subsequent processing; by effectively crushing the paper-plastic mixture, the contact surface between paper and plastic can be increased, making the subsequent separation process more efficient; when the crushed paper-plastic mixture passes through the centrifugal wet separation component 101, the paper items are separated from the plastic due to the increase in mass after absorbing water, and the plastic maintains its original mass due to not absorbing water, and the paper and plastic are effectively separated under the action of centrifugal force.

[0020] The centrifugal wet separation component 101 humidifies paper articles with water, so that the specific gravity of paper increases after absorbing water, while the plastic remains unchanged. With the help of the difference in centrifugal force, paper and plastic are separated during rotation. The key advantage of this technical solution is that the difference in specific gravity of paper and plastic is more obvious through humidification, thereby improving the separation efficiency. In the traditional dry separation process, the difference in specific gravity of paper and plastic is small, and the separation effect is easily limited. However, this embodiment effectively enhances the operability and accuracy of paper-plastic separation through humidification.

[0021] In addition, the auxiliary separation mechanism 200 further optimizes the separation effect through the jet propulsion component 201 and the plastic collection belt 203; the jet propulsion component 201 is arranged on both sides of the centrifugal wet separation component 101, and can push the separated plastic to the plastic collection belt 203 through airflow; the plastic collection belt 203 is provided with an adsorption sheet 206, and the adsorption sheet 206 has static electricity, which can further improve the separation purity of plastic and paper through electrostatic adsorption; using the principle of electrostatic adsorption, the adsorption sheet 206 can accurately adsorb the plastic during the separation process to ensure that the plastic is not contaminated by any residual paper scraps, thereby improving the recycling quality of the plastic and avoiding the problem of cross-contamination of paper-plastic mixtures.

[0022] Through the above technical scheme, this embodiment provides an efficient and accurate paper-plastic separation method; first, the material contact surface is increased by crushing, and the separation effect of paper and plastic is improved by humidification and centrifugal separation, and finally, the high purity of the separated materials is ensured by jet propulsion and electrostatic adsorption; the efficiency and accuracy of paper-plastic separation are improved, energy consumption is reduced, and the quality of recyclables is improved.

[0023] The horizontal separation bin 100 proposed in this embodiment is provided with a side plastic flow channel 104, which is used to guide the separated plastic so that the plastic can flow smoothly to the plastic collection belt 203; during the separation process, the plastic and other substances maintain independent flow directions, avoiding incomplete separation or cross contamination; the plastic collection belt 203 is arranged at the top of the side plastic flow channel 104, ensuring that the plastic can flow smoothly from the flow channel into the plastic collection belt 203 and be recovered in a centralized manner, thereby improving the separation efficiency and recovery effect.

[0024] The jet propulsion assembly 201 includes an air compressor 211 and a fixed nozzle 212. The fixed nozzle 212 is arranged inside the horizontal separation bin 100. The air compressor 211 is connected to the fixed nozzle 212. The compressed air provided by the air compressor drives the jet system in the fixed nozzle 212. The air compressor 211 transmits high-pressure air through the nozzle and sprays it out through multiple air nozzles 213. The air nozzles 213 are located below the side plastic flow channel 104. The air nozzles 213 can generate strong airflow, so that the separated plastic particles are driven and pushed to the plastic collection belt 203, avoiding backflow or retention problems caused by gravity or the thin shape of the plastic. The function of the jet propulsion assembly is to help the plastic pass through the flow channel effectively through airflow, thereby enhancing the separation effect and accelerating the movement of the material.

[0025] The high-pressure air ejected from the air nozzle 213 flows in the side plastic flow channel 104, and the separated plastic is quickly brought to the plastic collecting belt 203 by the strong effect of the airflow; the plastic can flow into the collecting belt quickly and accurately under the action of centrifugal separation and air propulsion, reducing the mixing of paper scraps and plastic and improving the separation efficiency; in addition, after the plastic passes through the air flow, it can reduce adhesion to wet paper and avoid adhering to paper items again.

[0026] The adsorption sheet 206 on the collection belt 203 carries static electricity and can further adsorb the separated plastic through electrostatic action; the electrostatic adsorption sheet 206 can accurately adsorb plastic particles, thereby ensuring the purity of plastic recycling; the electrostatic adsorption process can effectively improve the accuracy of plastic separation and reduce plastic pollution, ensuring that the recycled plastic has a higher reuse value.

[0027] The auxiliary separation mechanism 200 proposed in this embodiment also includes a pressure relief outlet 202, which is arranged at the top of the side plastic flow channel 104, and a plurality of air holes 205 are provided on the pressure relief outlet 202; the pressure relief outlet 202 increases the pressure difference between the inside and outside of the side plastic flow channel 104 by discharging high-pressure air, thereby enhancing the pushing effect of the high-pressure air ejected from the air nozzle 213 on the plastic; in specific use, when the high-pressure air ejected from the air nozzle 213 enters the side plastic flow channel 104, due to the presence of the pressure relief outlet 202, the air flow pressure in the flow channel will decrease rapidly, prompting the air flow generated by the air nozzle 213 to more strongly push the plastic particles forward; by adjusting the speed and direction of the air flow, it is further ensured that the separated plastic can be quickly and accurately guided to the plastic collection belt 203.

[0028] The function of the pressure relief outlet 202 is not only to discharge air, but also to optimize the flow path of the airflow by increasing the pressure difference between the inside and outside of the flow channel; the pressure relief outlet 202 increases the driving force of the airflow, and can more strongly push the separated plastic particles to the collecting belt, thereby avoiding the plastic particles from being retained in the flow channel due to slow flow or adhesion to paper scraps; the separated plastic particles can flow smoothly to the plastic collecting belt 203 driven by the airflow, thereby ensuring the efficiency and accuracy of the separation process; during use, when the air flows to the top of the flow channel, the plastic particles are adsorbed by the static electricity on the adsorption sheet 206, and the air is discharged through the air hole 205, and finally flows to the outside of the side plastic flow channel 104, completing the entire air flow process, ensuring smooth airflow inside the flow channel and effectively enhancing the separation effect.

[0029] The auxiliary separation mechanism 200 proposed in this embodiment also includes a discharging paddle 204, which is arranged below the plastic collecting belt 203 and has the function of scraping off the plastic adsorbed on the adsorption sheet 206; during the movement of the plastic collecting belt 203, the plastic particles will be adsorbed onto the adsorption sheet 206 through static electricity; when the adsorption sheet 206 passes through the discharging paddle 204, the discharging paddle 204 will scrape off these adsorbed plastic particles to ensure that the plastic is removed in time.

[0030] At the same time, the centrifugal wet separation component 101 is provided with a plastic collecting bin 105, which is located at the top of the side plastic flow channel 104 and is responsible for collecting the separated plastic; after the plastic falls from the adsorption sheet 206, it is scraped by the discharge paddle 204 and enters the plastic collecting bin 105 for storage; when the plastic collecting bin 105 is full, the plastic is discharged through the plastic discharge port 106 to complete the separation process; this ensures that the separated plastic can be efficiently removed from the adsorption sheet 206 and collected in a centralized manner, thereby improving the recovery rate of the plastic, avoiding blockage and retention, and further improving the working efficiency and automation level of the entire paper-plastic separation system.

[0031] The centrifugal wet separation component 101 proposed in this embodiment includes a rotating shaft 111, a humidifying blade 112 and a centrifugal motor 113; the rotating shaft 111 is rotatably arranged inside the horizontal separation bin 100, the humidifying blade 112 is fixed on the rotating shaft 111, and the centrifugal motor 113 is configured to drive the rotating shaft 111 to rotate; when the rotating shaft 111 rotates, the humidifying blade 112 rotates accordingly to humidify the paper-plastic mixture in the horizontal separation bin 100; the humidifying blade 112 sprays water evenly onto the paper-plastic mixture by continuous rotation, thereby achieving humidification of paper items.

[0032] After humidification, the mass of paper items increases due to water absorption, while the mass of plastics remains unchanged. Through the action of centrifugal force, the humidified paper items and plastics are separated; the rotating humidifying blades not only improve the separation effect of paper and plastics, but also ensure uniform humidification, avoiding incomplete humidification or local humidification; through the combination of humidification and centrifugal separation, the paper and plastics in the paper-plastic mixture can be separated more thoroughly, improving the separation efficiency and accuracy, and reducing impurities in subsequent processing.

[0033] The horizontal separation bin 100 proposed in this embodiment is provided with a bottom paddle outlet 103 at the bottom, and the bottom paddle outlet 103 is used to discharge the wetted pulp; under the action of the centrifugal wet separation component 101, the paper items are humidified and separated from the plastic by centrifugal force, and the wetted pulp will be deposited at the bottom of the separation bin; the setting of the bottom paddle outlet 103 ensures that the wetted pulp can be smoothly discharged from the separation bin, thereby avoiding the accumulation of pulp in the separation bin and affecting the separation effect.

[0034] Through the discharge function of the bottom paddle outlet 103, the wetted pulp can be effectively removed in time, ensuring the smooth progress of the separation process; the discharged pulp can be further dehydrated, processed or other subsequent steps to ensure the efficiency and sustainability of the entire paper-plastic separation process.

[0035] The top of the horizontal separation bin 100 proposed in this embodiment is provided with a top feed port 102, and the waste crushing mechanism 300 is arranged in the top feed port 102; the top feed port 102 is designed to facilitate the input of the paper-plastic mixture into the separation bin and is connected to the waste crushing mechanism 300; the waste crushing mechanism 300 is configured to perform a preliminary crushing treatment on the paper-plastic mixture before it enters the separation bin, and cut or crush large pieces of the paper-plastic mixture into smaller particles; through the crushing treatment, the paper-plastic mixture is broken up, reducing the adhesion or agglomeration between paper and plastic, which is beneficial to subsequent humidification and centrifugal separation; the crushed paper-plastic mixture is easier to be evenly humidified and separated, thereby improving the separation effect and efficiency.

[0036] The waste crushing mechanism 300 proposed in this embodiment includes a crushing bin 301, a crushing roller 302 and a crushing motor 303. 391 is arranged on the top feed port 102, the crushing roller 302 is rotatably arranged inside the crushing bin 301, and the crushing motor 303 is configured to drive the crushing roller 302 to rotate. A feed hopper 304 is arranged on the top of the crushing bin 301, and the mixed paper and plastic waste is placed into the crushing bin 301 from the feed hopper 304. The crushing motor 303 drives the crushing roller 302 to crush the waste. The spacing between the crushing rollers 302 can be adjusted according to the type of waste.

[0037] It should be noted that, in this article, relational terms such as first 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", "comprise" or any other variants 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.

[0038] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A horizontal paper-plastic separator, characterized in that: It comprises a horizontal separation bin (100), an auxiliary separation mechanism (200) and a pulverizing mechanism (300), wherein the auxiliary separation mechanism (200) and the waste pulverizing mechanism (300) are arranged on the horizontal separation bin (100), and the waste pulverizing mechanism (300) is configured to pulverize a paper-plastic mixture; The horizontal separation bin (100) comprises a centrifugal wet separation component (101), the auxiliary separation mechanism (200) comprises a jet propulsion component (201) and a plastic collection belt (203), the jet propulsion component (201) being arranged on both sides of the centrifugal wet separation component (101) and used for... The plastic collection belt (203) is provided with an adsorption sheet (206); The adsorption sheet (206) is configured to be electrostatically charged.

2. The horizontal paper-plastic separator according to claim 1, characterized in that: The horizontal separation bin (100) is provided with a side plastic flow channel (104), and the plastic collection belt (203) is arranged at the top of the side plastic flow channel (104); The jet propulsion assembly (201) comprises an air compressor (211) and a fixed nozzle (212); the fixed nozzle (212) is arranged inside the horizontal separation chamber (100); the air compressor (211) and the fixed nozzle (212) are connected; an air nozzle (213) is provided on the pressure relief outlet (202); and the air nozzle (213) is located below the side plastic flow channel (104).

3. The horizontal paper-plastic separator according to claim 2, characterized in that: The auxiliary separation mechanism (200) further comprises a pressure relief outlet (202), wherein the pressure relief outlet (202) is arranged at the top end of the side plastic flow channel (104), and an air hole (205) is arranged on the pressure relief outlet (202).

4. The horizontal paper-plastic separator according to claim 2, characterized in that: The auxiliary separation mechanism (200) further comprises a discharging paddle (204), wherein the discharging paddle (204) is arranged below the plastic collecting belt (203), and the discharging paddle (204) is configured to scrape off the plastic adsorbed by the adsorption sheet (206); The centrifugal wet separation component (101) is provided with a plastic collection bin (105), the plastic collection bin (105) is located at the top of the side plastic flow channel (104), and the plastic collection bin (105) is provided with a plastic discharge port (106).

5. The horizontal paper-plastic separator according to claim 1, characterized in that: The centrifugal wet separation component (101) comprises a rotating shaft (111), a humidifying blade (112) and a centrifugal motor (113); the rotating shaft (111) is rotatably arranged inside the horizontal separation bin (100); the humidifying blade (112) is arranged on the rotating shaft (111); and the centrifugal motor (113) is configured to drive the rotating shaft (111) to rotate; The humidifying blade (112) is configured to humidify the paper-plastic mixture in the horizontal separation bin (100).

6. The horizontal paper-plastic separator according to claim 5, characterized in that: The bottom of the horizontal separation bin (100) is provided with a bottom paddle outlet (103), and the bottom paddle outlet (103) is used to discharge the moistened paper pulp.

7. The horizontal paper-plastic separator according to claim 1, characterized in that: A top feed opening (102) is provided at the top of the horizontal separation bin (100), and the waste crushing mechanism (300) is arranged in the top feed opening (102).

8. The horizontal paper-plastic separator according to claim 7, characterized in that: The waste crushing mechanism (300) comprises a crushing bin (301), a crushing roller (302) and a crushing motor (303); the (391) is arranged on the top feed port (102); the crushing roller (302) is rotatably arranged inside the crushing bin (301); the crushing motor (303) is configured to drive the crushing roller (302) to rotate; and a feed hopper (304) is arranged at the top of the crushing bin (301).

Citation Information

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