1480 results about "Plastic recycling" patented technology

The present invention relates to the technical field of waste plastic processing. Disclosed is a waste plastic recycling and regeneration device having crushing and cleaning functions. The present invention aims to solve the technical problems of part of powdered impurities in semi-finished plastic particles being easily affected by rolling, vibration and impact of plastic to scatter and flow away, seriously affecting subsequent feeding and processing and polluting the surrounding working environment. The present invention comprises an outer cylinder, an ultrasonic transducer is sleeved at the middle of the outer wall of the outer cylinder, and a top cover is sleeved at the top of the outer cylinder. According to the present invention, a continuously falling water curtain can be formed at the top of the inner cylinder, to continuously intercept and purify part of powdered and scattered impurities; leakage and discharge of first leakage holes and second leakage holes can be further regulated and controlled, and sealing partition, mesh layer screening and centralized discharge are implemented; part of powdered and scattered impurities is continuously intercepted and purified; and an aeration pipe aerates cleaning water in an inner cylinder to promote the stirring and tumbling of semi-finished plastic particles in the cleaning water.

The invention discloses a waste plastic pyrolysis-catalysis system based on electromagnetic induction heating and a catalytic reforming method, and relates to the technical field of plastic pyrolysis. The problems that in the existing plastic pyrolysis-catalysis process, the yield and quality of CNTs and H2 are affected by factors such as non-uniform heating, catalyst deactivation and difficult product separation exist are solved. The system comprises a gas inlet device, a waste plastic pyrolysis device, a waste plastic continuous feeding device, a waste plastic catalytic reforming device and a gas collecting device, the gas inlet device is used for providing argon gas flow for the waste plastic pyrolysis device through a gas pipe; the waste plastic continuous feeding device is used for feeding waste plastic into the waste plastic pyrolysis device for heating and cracking; pyrolysis products enter a waste plastic catalytic reforming device after passing through a waste plastic pyrolysis device; according to the waste plastic catalytic reforming device, the temperature is regulated and controlled through the electromagnetic induction heating module, and the catalytic reforming process is optimized; and gas products after catalytic reforming are collected by a gas collecting device. The method is applied to the field of plastic recovery.

The invention relates to the technical field of regeneration of waste polyester, in particular to a polyester micro-plastic recycling and impurity removing method and equipment. According to the method, the irradiation technology is adopted for treating the polyester micro-plastic, the polyvinyl chloride is removed by combining electron beam irradiation with the specific gravity method, the radiation dosage and time are accurately controlled, the polyvinyl chloride in the polyester micro-plastic can be effectively removed, the color of the polyester micro-plastic is not affected, and the treated polyester micro-plastic can meet the spinning requirement. The equipment is used for realizing the impurity removal method and comprises irradiation treatment equipment, a separation tank, a cleaning tank, a dehydrator and a drying tower. The equipment is simple in structure and convenient to operate, the radiation dosage and time can be accurately controlled in the impurity removal process, the surface temperature of the polyester micro-plastic is effectively controlled, and production and popularization are easy.

The invention relates to the technical field of plastic recycling, in particular to a waste plastic crushing and sorting device and an automatic metal impurity rejecting method.The waste plastic crushing and sorting device comprises a rack, a primary separation assembly and a two-part assembly, and the primary separation assembly comprises a crushing mechanism arranged on the rack, a flattening mechanism arranged on the crushing mechanism and a conveying and sorting mechanism arranged on a sorting mounting box; the two-part assembly comprises a crushing mechanism arranged on the sorting mounting box and a vibration screening mechanism arranged on the rack and located below the crushing mechanism, through the arrangement of the crushing mechanism and the conveying sorting mechanism, metal is adsorbed to a conveying belt after waste plastic is crushed, and through the arrangement of a power supply component, when a conductive rod slides to an insulating rod, the metal is separated from the insulating rod; the metal automatically falls into the crushing mechanism, plastic remaining on the metal is further crushed, the plastic and the metal are separated more thoroughly, plastic crushing and metal separation are conducted synchronously, the plastic crushing and separating efficiency is improved, and the labor intensity of workers is reduced.

The invention relates to the technical field of plastic recovery, in particular to a plastic production redundant waste recovery treatment device which comprises a cleaning box. The cleaning mechanism is used for cleaning the plastic waste; the pretreatment mechanism is used for treating the plastic waste before cleaning; the cleaning mechanism comprises a rotary drum rotationally installed in the cleaning box, a first power source driving the rotary drum to rotate, a rotary plate fixedly connected with the end of the rotary drum, a stirring plate fixedly installed on the rotary drum, a cleaning piece installed on the stirring plate and a flushing assembly for flushing plastic waste. According to the plastic waste cleaning device, through the arrangement of the cleaning mechanism, plastic waste can be stirred, flushed and brushed, so that multiple cleaning of the plastic waste is achieved, the cleanliness of the plastic waste is greatly improved, and the problem that cleaning is not thorough to different degrees in an existing cleaning mode is solved; and the reprocessing quality and the utilization rate of the plastic waste are influenced.

The invention relates to the technical field of plastic recycling, in particular to a recycling process of waste plastic and ore bottles, and solves the problems that in the existing plastic bottle recycling process, cleaning is insufficient, impurity residues are easily caused, cleaning liquid is inconvenient to fully utilize, and the plastic bottles are directly crushed, so that the crushing quality is poor. Comprising the following steps that S1, waste plastic bottles are recycled and packaged in a manual or mechanical mode and then transported, transferred and stored through a vehicle, when the plastic bottles need to be reused, packages of the plastic bottles are disassembled and classified, and metal pieces doped in the plastic bottles are removed; and S2, after impurity removal, a feeding conveyor is used for conveying and feeding the plastic bottles. According to the plastic bottle recycling device, plastic bottles are fully cleaned and compressed in the recycling process, the purity of recycled plastic particles can be effectively improved, cleaning liquid can be fully recycled conveniently, and the smashing quality of the plastic bottles can be improved conveniently.

The invention relates to the technical field of recycled plastic injection molding, and discloses an injection mold based on a plastic recycled particle uniform plasticizing structure, the injection mold comprises a molding part, the molding part comprises a fixed mold, and one side of the fixed mold is slidably connected with a movable mold. The injection mold based on the uniform plasticizing structure of the plastic recycled particles can effectively solve the problems that in the prior art, the main purpose of a spiral conveyor is conveying, the recycled plastic particles are conveyed forwards and plasticized step by step under rotation pushing of a screw, but the recycled plastic particles are complex in source and difficult to plasticize. The material, the shape, the contained additives and the like of the recycled plastic particles are greatly different, the recycled plastic particles with different characteristics are difficult to be fully and uniformly mixed when entering a mold only through screw conveying and preliminary plasticizing, the interiors of products are easy to have nonuniform components and performances, and the strength of some parts of the products is insufficient. The invention solves the problems of high probability of breakage when bearing external force, poor overall quality, low production efficiency and low product percent of pass.

The invention provides treatment equipment for preparing cable material particles by recycling waste plastic, and relates to the technical field of waste plastic recycling. A tearing box is mounted at the upper end of the recovery treatment box body, and the upper end of the tearing box is of a flaring structure convenient for waste plastics to enter; a smashing box is fixedly arranged at the butt joint position of the inner cavity of the recycling treatment box and the lower end of the tearing box. The equipment adopts a two-stage crushing structure of a tearing box (including a tearing roller) and a crushing box (including a crushing cutter), and through a stage treatment mode of preliminary tearing and spiral crushing, the energy consumption pressure for directly crushing large plastic blocks is remarkably reduced. The tearing roller pre-crushes the materials, so that the load of the crushing cutter is reduced, the spiral blade group of the crushing cutter synchronously pushes the materials to the middle part in the cutting process, and a cyclic crushing path is formed in combination with a dynamic screening mechanism of the screen, so that the crushing uniformity is ensured, and the energy waste caused by repeated treatment is avoided.

The invention relates to the technical field of plastic recycling, and discloses a PET bottle body label removing device which comprises a machine body, pretreatment mechanisms for pretreating bottle body labels are arranged on the two sides of the outer wall of the machine body correspondingly, and softening mechanisms for softening the bottle body labels are arranged outside the pretreatment mechanisms. A discharging mechanism for conveying pretreated bottle bodies out is arranged on one side of the outer wall of the machine body, the bottles can be flattened before entering the label removing machine through extrusion of an extrusion plate and exhaust thorns, the flattened bottles can make contact with the area of blades of the label removing machine larger than the area of the flattened bottles which are irregularly shaped after being recycled, and therefore the label removing machine is more convenient to use. And meanwhile, in order to prevent the situation that residues exist at the positions, with mucilage glue, of the sticking positions of the labels when the blades scrape the labels, the brush can rotate while the bottles are flattened, a spray head can spray out liquid for softening the labels, and therefore the blades of the label removing machine can better scrape the labels.

The invention relates to a recycled plastic material purity monitoring method based on artificial intelligence, and the method comprises the steps: collecting surface visual image data and spectral signal data of a recycled plastic material, environment parameter data and corresponding recycled plastic material purity data, and carrying out the data processing; constructing a double-branch deep neural network model, and respectively extracting a surface visual image feature vector and a spectral signal feature vector from the surface visual image data and the spectral signal data and fusing the surface visual image feature vector and the spectral signal feature vector; in combination with the plastic recycled material fusion feature vector, a plastic feature data set is adopted to train and optimize a double-branch deep neural network model; and collecting real-time surface visual image data, real-time spectral signal data and real-time environmental parameter data of the to-be-monitored plastic recycled material, and inputting the data into the plastic recycled material purity monitoring model to obtain a real-time purity value of the plastic recycled material. The accuracy and efficiency of monitoring the purity of the recycled plastic material can be improved, and the problems that manual detection is low in efficiency and large in error are solved.

The invention belongs to the technical field of plastic recycling, and discloses a plastic recycling device with a cleaning function, which comprises a base, a crushing assembly is fixedly mounted on the left side of the top end of the base, a cleaning assembly is fixedly mounted on the right side of the top end of the base, and a dewatering assembly is mounted on the position, close to the left side, of the top end of the cleaning assembly. A main shaft is movably installed between the smashing assembly and the dewatering assembly, and a driving assembly located between the smashing assembly and the dewatering assembly is installed in the middle of the outer side face of the main shaft. After cutting and smashing of plastic waste are completed, high-speed contact between water flow and plastic particles can be achieved through cooperation of mechanical power of the plastic waste and input high-pressure water flow, and flying dust generated during smashing of the plastic waste is subjected to rapid dust falling through the mixing effect of the high-pressure water flow and mixed with clear water; meanwhile, dirt on the surfaces of the plastic particles can be rapidly removed, the automatic cleaning process of the plastic particles is achieved, and the recycling effect is improved.

The invention relates to the technical field of plastic recycling, and discloses a fragment screening mechanism for plastic particle production, the fragment screening mechanism for plastic particle production comprises a rack and a screening hopper, a coarse screening plate is fixedly installed on the inner wall of the screening hopper, and according to the fragment screening mechanism for plastic particle production, a motor is started to drive a rotating shaft to rotate; meanwhile, plastic particles in the screening hopper can be scattered through cooperation of a wheel disc, a cam groove, a ball head rod, a push plate, a sliding rod, a spiral groove and a stirring shaft, meanwhile, the plastic particles in the hopper can be turned up and down in a reciprocating mode through cooperation of a connecting rod, a sliding table and the stirring shaft, the scattering effect on the plastic particles is further improved, and adhesion of the plastic particles is avoided; accordingly, the plastic particles can be prevented from blocking the coarse screening plate, the screening effect and efficiency of the plastic particles are improved, meanwhile, the discharging pipe can be dredged through the push rod, the inclined groove, the sliding plate and the ejector rod, the plastic particles are prevented from being blocked in the discharging pipe, and the discharging efficiency of the plastic particles is improved.

The invention discloses a method for preparing fuel from waste polyolefin through noble-metal-free low-temperature aromatization, which comprises the following steps: in the atmosphere of synthesis gas, carrying out catalytic cracking on polyolefin serving as a raw material by adopting a binary mixed catalytic system to obtain aromatic hydrocarbon; the binary mixed catalytic system comprises Zr-ZnO and a molecular sieve; the catalytic cracking temperature is less than or equal to 300 DEG C. According to the low-temperature aromatization method disclosed by the invention, methanol is generated in situ through the synthesis gas, and the methanol and olefin generated by polyolefin cracking are subjected to Prins reaction, so that the aromatization reaction can be realized at the pyrolysis temperature far lower than that in the prior art, precious metals are not needed, the additional value and the application range of a plastic recovery product are greatly enhanced, and the method is suitable for industrial production. And the cost of the recovery process is reduced.

The invention relates to the technical field of waste plastic screening, and discloses plastic screening and separating equipment and a screening method for waste plastic recycling. The plastic screening and separating equipment comprises a separating bin, two material distributing channels are fixedly installed on the separating bin, a screening barrel and a driving source are installed on the separating bin, and a front adjusting piece and a rear adjusting piece are arranged at the two ends of the screening barrel correspondingly; driving pieces are arranged at the two ends of the screening barrel correspondingly, a control piece is arranged on one side of the separation bin, and linkage pieces are arranged between the driving pieces and the control piece. The screening barrel comprises a plurality of material blocking rods and a material blocking net. The driving piece comprises a driving rod. The distance between the two material blocking rods is adjusted through the front adjusting piece, the multiple material blocking nets are driven to be unfolded through the rear adjusting piece, impurities in plastic products are screened, and the problem that when a screening barrel on a traditional separator adjusts the distance between the material blocking rods and installs a material blocking net plate, mounting and dismounting are needed through screws, and the working efficiency is high is solved. And the distance between the material blocking rods is difficult to adjust quickly, and the material blocking net plate is difficult to install.

The invention discloses regeneration processing equipment for waste plastics, and particularly relates to the technical field of plastic recycling, and the regeneration processing equipment for the waste plastics comprises a main frame, and a crushing system and a cleaning system which are arranged in the main frame; a feeding hole is formed in the top of the main frame; the crushing system comprises a crushing assembly, a screening assembly and a recycling, crushing and conveying assembly, the cleaning system comprises a multi-stage countercurrent cleaning device, and the multi-stage countercurrent cleaning device is arranged below the screening assembly; the multi-stage countercurrent cleaning device comprises a plurality of cleaning tanks which are arranged in the main frame and are designed in parallel, a transfer impeller and a circulating water treatment unit, the feeding port comprises a material guide plate of the crushing assembly, and a discharging guide plate is installed in the main frame; and through the smashing assembly, the screening assembly and the recycling, smashing and conveying assembly, screening and re-smashing of plastic can be achieved, and the cleaning effect is better under the action of the multi-stage countercurrent cleaning device.

The invention belongs to the field of environment-friendly materials, and particularly discloses a waste plastic recycling method which comprises the following steps: selecting one or a mixture of more of waste PET (Polyethylene Terephthalate), PP (Polypropylene), PVC (Polyvinyl Chloride), PS (Polystyrene) and PC (Polycarbonate) as a base material; adding organic silicon-graphene, a bio-based polyester-carbon nanotube composite modifier and a reinforcing agent, wherein the addition amount is 3-8% of the weight of the base material; flame-retardant and antioxidant auxiliaries are matched; the method comprises the following steps: carrying out plasma and enzyme catalysis pretreatment on waste plastic, premixing with other components by a high-speed mixer, carrying out melt blending in a double-screw extruder under the assistance of supercritical fluid, promoting dispersion by ultrasonic and microwave during the period, and simultaneously carrying out photo-initiation in-situ polymerization; finally, a product is prepared through injection molding, extrusion and other molding processes. The performance of the waste plastic recycled material is greatly improved, the mechanical performance, the electrical performance, the barrier performance and the like of the recycled material are remarkably improved, and the waste plastic recycled material can be widely applied to more fields.

The present invention relates to the field of plastic recycling technology, and specifically to a device for recycling and processing excess waste from plastic production, comprising: a cleaning box; a cleaning mechanism for cleaning plastic waste; a pre-treatment mechanism for treating the plastic waste before cleaning; the cleaning mechanism comprising: a rotating drum rotatably installed in the cleaning box, a power source for driving the rotating drum to rotate, a rotating plate fixedly connected to the end of the rotating drum, a stirring plate fixedly installed on the rotating drum, a cleaning member installed on the stirring plate, and a flushing assembly for flushing the plastic waste. In the present invention, through the provision of the cleaning mechanism, the plastic waste can be stirred, flushed, and brushed, thereby achieving multiple cleanings of the plastic waste, greatly improving the cleanliness of the plastic waste, and solving the problem that the existing cleaning methods all have the problem of incomplete cleaning to varying degrees, affecting the reprocessing quality and utilization rate of the plastic waste.

The invention relates to the technical field of plastic recovery, in particular to waste plastic recovery granulation equipment which comprises a screw extruder, a mounting cover is fixedly mounted at the right end of the screw extruder, discharge ports are formed in the positions, corresponding to die orifices of the screw extruder, of the right end of the mounting cover, and a guide unit is mounted in the mounting cover; a pre-cooling unit is mounted at the right end of the screw extruder and is positioned in the mounting cover; the plastic strip pre-cooling forming device is used for recycling waste plastic, extruded plastic strips in a molten state can be uniformly pre-cooled and formed, the problems that the plastic strips crack or plastic particles obtained after particle cutting are irregular in shape and the like are solved, the quality of the produced plastic particles is ensured, and the production efficiency is improved. And meanwhile, extruded plastic strips in a molten state can be guided, drooping deformation of the plastic strips under the action of gravity is prevented, the sizes of the plastic strips in the axial direction are consistent, and then it is guaranteed that the sizes of plastic particles produced subsequently are uniform.

The invention discloses a modified PET recycled material and a preparation method thereof, and belongs to the technical field of plastic recycling. Comprising the following raw materials in parts by weight: 70-90 parts of a pretreated PET reclaimed material, 8-24 parts of modified graphene oxide, 3-9 parts of an antioxidant and 3-5 parts of a lubricant. Wherein the antioxidant can achieve a synergistic effect, so that the oxidation resistance of the PET recycled material is greatly improved; wherein the modified graphene oxide has good compatibility with a PET matrix, and can play a synergistic effect with groups on the surface of the modified graphene oxide, so that the flame retardance, antibacterial property and certain heat resistance of the PET recycled material are remarkably enhanced; therefore, the PET recycled material is modified and recycled, the pollution of waste materials is reduced, the recycling of resources is realized, and the modified PET recycled material also has excellent oxidation resistance, stable and efficient flame retardance, antibacterial property and heat resistance to a certain degree, and has important application value in the technical field of plastic recycling.

To provide an efficient separation and recovery method for laminated materials suitable for plastic recycling, which has excellent detachability of the printing layer and adhesive layer, and also suppresses reattachment of components detached from the detached layer, and furthermore, it is to provide a method for manufacturing molding materials obtained by melting and kneading the recovered plastic base materials, and a method for manufacturing high-grade molded bodies obtained by heating and molding the molding materials.SOLUTION: The method for separating and recovering laminates includes the process of immersing a laminate with at least a plastic substrate layer and a desorption layer in contact with the plastic substrate layer in a desorption solution containing a chelating compound and / or chelating agent (except when it is a surfactant) to desorb the desorption layer and recover the plastic substrate.SELECTED DRAWING: None

The invention discloses a multi-metal heterostructure electrocatalyst, a preparation method and application of the multi-metal heterostructure electrocatalyst in plastic recovery, and belongs to the field of electrochemical catalyst.The catalyst comprises hydroxide and a metal heterostructure which grow on a foam metal matrix, and according to the method, soluble metal salt is used as a raw material; the multi-metal heterostructure electrocatalyst is prepared by adopting a two-step electrodeposition method. The catalyst can be applied to the process of recycling PET-derived EG in an alkaline solution through electro-catalysis upgrading, has extremely low overpotential and relatively high Faraday efficiency when being used for electro-oxidation of PET hydrolysate, and has very good catalytic stability. The multi-metal heterostructure electrocatalyst prepared by the method can also be applied to upgrading and recycling of other plastic derivatives, and has a good application prospect in the field of upgrading and recycling of the plastic derivatives.

The invention relates to the field of waste plastic recycling, and discloses plastic film recycling equipment which is used for cleaning and recycling broken plastic films. Comprising a cleaning pool, an inclined conveying belt is arranged at the tail end of the cleaning pool, water filtering holes are formed in the conveying belt, and an extrusion component is arranged on the conveying belt; and the fished-out fragments are extruded by the extrusion part, so that the drainage speed of the fragments is accelerated, and the subsequent recovery processing step is ensured to be smoothly carried out. A traditional conveying belt drains water only by means of gravity, and water in wet plastic fragments and between layers is difficult to effectively discharge, so that the water yield is large. The intermittent extrusion action is introduced in the operation cycle of the conveying belt, and the'wet cake 'structure formed by the surface tension of a water film of the wet material is destroyed in the squeezing process, so that the moisture is easier to release, the initial moisture content of the material is greatly reduced, the load of subsequent centrifugal dewatering or hot air drying equipment is effectively reduced, and the energy consumption and the operation cost are remarkably reduced.

The invention belongs to the technical field of information, and particularly relates to a taboo search algorithm-based waste plastic regeneration production process energy-saving method, which comprises the following steps of: firstly, carrying out detailed modeling and energy consumption analysis on a production process, covering links such as raw material pretreatment, melt extrusion and the like, and constructing an energy consumption model; secondly, designing a tabu search algorithm, representing an optimization scheme by a solution vector, and searching an optimal solution by taking the minimum energy consumption as a target function through the steps of initial solution generation, neighborhood search, tabu table operation and the like; and finally, making an optimization scheme according to the optimal solution and implementing, monitoring and evaluating in real time, and adjusting and perfecting according to a result. The scheme aims at improving the energy utilization efficiency and reducing the cost and environmental pollution.

The invention belongs to the technical field of waste plastic recycling, and provides an electrostatic separation method and device for plastic particles, and the electrostatic separation method for the plastic particles comprises the steps that conductive materials are applied to the surfaces of the plastic particles to be separated, so that composite coatings are formed on the surfaces of the plastic particles; bombarding the plastic particles after the composite coating is applied through plasma; the bombarded plastic particles are cleaned through high-frequency ultrasonic waves; and selecting a corresponding ionization mode according to the type of the plastic particles so as to sort the cleaned plastic particles. According to the electrostatic separation method for the plastic particles, the separation efficiency and purity of the plastic particles can be greatly improved.

The invention discloses a recycled plastic recycling device, and relates to the technical field of recycled plastic production, the recycled plastic recycling device comprises an equipment box, a plastic bottle guiding and conveying assembly is installed in the side end of the equipment box, and an annular electric control rotating guide rail drives an adjusting swing arm to rotate slowly under the cooperation of a bottle processing assembly; the laser sensor at the bottom end of the adjusting swing arm and the laser emitter work synchronously, emitted laser beams conduct 360-degree laser cutting around the bottle opening, the miniature electromagnetic lifting rod drives the bottle head electric clamping piece to descend, the cut bottle opening is accurately clamped, the situation that the granularity of plastic particles is not uniform due to excessive breaking is avoided, and the service life of the bottle opening is prolonged. And under the cooperation of the vacuum guiding and conveying chamber, the microwave drying chamber and the ultrasonic cleaning chamber, cleaning and drying of the plastic particles are ensured, high-quality raw materials are provided for subsequent granulation, the forming quality of the regenerated plastic particles is improved, the defective rate is reduced, the production efficiency is improved, and the requirement for large-scale industrial production is met.

The utility model relates to the technical field of environment-friendly plastic recovery, in particular to an environment-friendly plastic recovery and regeneration treatment device which comprises a box body, and supporting pads are installed at the four corners of the bottom of the box body. An electric push rod extends to push a rack to move at the bottom of a supporting plate and drive a gear to rotate, and the gear rotates to drive a rotating rod to rotate back and forth to drive a plurality of groups of nozzles to rotate for angle adjustment so as to facilitate flushing; and thus, the cleaning frame is driven to reciprocate between the two L-shaped supporting plates to shake and turn over the plastic falling into the cleaning frame after screening, cleaning is more thorough, and the problem that the recycling efficiency is reduced due to the fact that dust and impurities on the plastic are inconvenient to clean when environment-friendly plastic is recycled traditionally is effectively solved.

The invention relates to the technical field of plastic recovery, and discloses a marine regenerated PET plastic recovery processing system and a processing technology.The marine regenerated PET plastic recovery processing technology comprises the steps that a multi-agent system is constructed through a water surface unmanned ship, an underwater robot and an air unmanned aerial vehicle, collaborative decision making and task allocation are conducted based on a behavior tree framework, and a target object is obtained; a self-organizing map model is adopted to predict the PET plastic distribution density, and a multi-agent system is guided to perform efficient source searching; according to the invention, active source searching, accurate identification and efficient recovery of PET plastics in a marine environment are realized by constructing a sea-land-air cooperative multi-agent system, an underwater PET plastic multi-target detection model and a stained PET plastic feature extraction and classification system, so that the technical problems of low identification accuracy and low recovery efficiency in a traditional recovery technology are solved.

The invention provides a plastic recycling and tracking method and system, a program product and a storage medium, and relates to the technical field of intelligent environment-friendly recycling. The target plastic group is divided into different categories to realize basic classification, so that mixing of plastics of different materials is avoided; the plastic source is traceable by collecting geographic position information and generating a digital map; and finally, the plastics at different geographic positions are distributed to the corresponding packaging mechanisms according to a preset classification rule, and accurate classification treatment is achieved. According to the progressive treatment mode, the plastics of the same kind but different producing areas can be accurately distinguished and classified, mixing treatment of the plastics of different technological levels and different modification formulas is effectively avoided, and therefore the classification management precision is improved.

The present invention relates to the technical field of plastic recycling, and disclosed are a method for preparing a regenerated resin from PET recyclate and a use thereof. The method comprises the following steps: mixing PET recyclate, a polyol, and a catalyst; carrying out elevated temperature reaction; after cooling, adding a polybasic acid or a polybasic acid anhydride for reaction; and after the reaction is finished, cooling to obtain a regenerated resin. The polyol is selected from at least one of diethylene glycol, tripropylene glycol, and polyethylene glycol; the average functionality of the polybasic acid is greater than 2; and the catalyst is selected from at least two of zinc acetate, manganese acetate, and tetrabutyl titanate. According to the present invention, the regenerated resin is applied to the preparation of water-based ink, so that the water-based ink achieves the same printing performance as acrylic resin ink. In the method of the present invention, no waste is generated during polymerization, achieving a 100% recycling rate for waste plastic. Fossil raw materials are saved, and PET recyclate is also fully utilized, achieving the objective of turning waste into wealth.

The present invention relates to the field of plastic waste recycling, and discloses an environmentally friendly injection mold with a plastic recycling function, including a movable mold, a fixed mold, a flow channel rotating component, and a plastic solution recycling component. The flow channel rotating component is arranged on the fixed mold, and is used to rotate the injection molding solution in the flow channel to a specified position, and the plastic solution recycling component is used for recycling the plastic solution. Compared with the prior art, in the present application, the injection molding tube injects the plastic solution in a molten state into the flow channel through hole, and then enters the inside of the injection molding cavity. After the injection molding is completed, the solution in the flow channel can be transferred by rotating the rotating sealing baffle, and will not be cooled and molded together with the product. By setting the plastic solution recycling component, the transferred plastic solution is recycled into the injection molding tube, thereby realizing the effective recovery of the plastic solution in the injection mold, and avoiding the problem of waste caused by the cooling and molding of the plastic solution.