1031 results about "Plastic waste" patented technology

The invention discloses a shoal plastic garbage unmanned aerial vehicle monitoring method based on map characteristics. The method is characterized by comprising the steps of carrying out aerial photography modeling on a multispectral unmanned aerial vehicle, preprocessing visible light and multispectral data, training an instance segmentation model to detect garbage targets and generate masks at the same time, and extracting image and spectral features of each garbage target; and classifying and identifying each garbage in combination with the image and spectral features, and establishing a mass-occupied area model of each garbage for stock estimation, and the like. According to the method, the image features reflecting the morphology difference of the plastic products and the spectral features reflecting the material difference are extracted based on the instance segmentation model, the recognition dimension of the plastic garbage is increased, and compared with the prior art, multi-dimensional high-precision plastic garbage type recognition is achieved by combining the image features and the spectral features; and the plastic garbage stock estimation corresponding to the category is realized based on the identification result, and the method has good application prospects and commercial development values.

The invention relates to the field of plastic waste detection, in particular to a plastic waste detection method, device and equipment and a storage medium. The method comprises the following steps: acquiring a multi-angle image of a to-be-detected area; performing multi-scale detail reconstruction on the multi-angle image of the region to be detected, and performing region background feature interference suppression so as to construct a background suppression optimization image; performing in-region target visual detection on the background suppression optimization image, and performing object material component mining so as to generate a material component feature of each object; deep semantic segmentation is carried out based on the material component features of each object, image impurity removal processing is carried out, and a non-plastic impurity removal optimized image is constructed; and performing plastic waste visual inspection on the non-plastic impurity removal optimized image, and performing bounding box instance division processing so as to extract a bounding box image of each plastic waste. According to the invention, efficient and accurate plastic waste detection and identification are realized.

Chemical recycling facilities for processing mixed plastic waste are provided herein. Such facilities have the capability of processing mixed plastic waste streams and utilize a variety of recycling facilities, such as, for example, solvolysis facility, a pyrolysis facility, a cracker facility, a partial oxidation gasification facility, an energy generation / energy production facility, and a solidification facility. Streams from one or more of these individual facilities may be used as feed to one or more of the other facilities, thereby maximizing recovery of valuable chemical components and minimizing unusable waste streams.

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 injection mold comprises a movable mold body and a fixed mold body which are arranged, a lifting plate is connected to the interior of a containing groove through a driving assembly, a cutter used for cutting accumulated materials in an injection groove is arranged on the lifting plate, and a moving rod is driven by gas in a driving air cylinder; an auxiliary assembly is arranged in the movable mold, a conveying bag is arranged on the auxiliary assembly, the output end of the conveying bag is connected with an air blowing assembly, and a vibration assembly is arranged in the storage groove. According to the injection mold capable of recycling the plastic waste, accumulated materials in an injection groove in the injection nozzle are separated from a formed part in the fixed mold through a cutter on the lifting plate, the overall structure is simple, the problem that maintenance is inconvenient due to the arrangement of a complex structure is solved, and the problem that the adaptability of the mold is reduced due to the arrangement of a large structure is solved; and through cooperation of the vibration assembly and the air blowing assembly, accumulated materials in the injection groove can be thoroughly cleaned, and the cost problem of secondary treatment is reduced.

The invention discloses a high-strength low-density proppant as well as a preparation method and an in-situ generation method thereof. The proppant is prepared by compounding recycled glass fiber reinforced plastic powder or glass fiber powder with different meshes and recycled glass fiber reinforced plastic powder in different proportions and blending a styrene system / unsaturated polyester resin system in different proportions. The glass fiber reinforced plastic powder as the filler can improve the mechanical properties of the proppant, such as strength and toughness. The matrix is made of polystyrene or unsaturated polyester or other high polymer materials and is low in density. Therefore, the proppant has the characteristics of high strength and low density. The invention discloses a preparation method of a high-strength and low-density proppant, which can produce the high-strength and low-density proppant with uniform particle size distribution on a large scale by adopting a suspension polymerization method, and can efficiently recover a large amount of glass fiber reinforced plastic wastes. The suspension polymerization method is simple to operate, the produced proppant is high in roundness and sphericity, the mining cost of a coal-bed gas well can be reduced, and the yield of coal-bed gas can be increased.

The invention belongs to the field of waste recovery, and particularly relates to a plastic production waste recovery treatment device which comprises a conveying assembly, an iron removal assembly, a smashing assembly and a collecting assembly. The conveying assembly comprises a climbing conveyor; the climbing conveyor is used for lifting and conveying plastic waste; the iron removal assembly comprises an equipment box; a magnet is arranged in the equipment box; one side of the equipment box is fixedly connected with a stand column; the top of the equipment box is fixedly connected with an air cylinder; the output end of the air cylinder is fixedly connected with a mounting frame. Positioning rods are symmetrically and fixedly connected to the two sides of the equipment box; by arranging the equipment box, iron impurities at the bottom of the bottom plate can be desorbed, then the device can remove the iron impurities in the waste materials, the device can conveniently crush the waste materials subsequently, meanwhile, the bottom plate can be driven to desorb the iron impurities by starting the air cylinder, and rapid desorption of the device on the iron impurities is achieved.

The invention relates to the technical field of waste tracking, in particular to a plastic waste tracking method and equipment utilizing data management. The method comprises the following steps: acquiring real-time positioning data of the plastic wastes; performing dynamic positioning tracking on the real-time positioning data of the plastic wastes, performing full-process trajectory evolution, and constructing a waste full-process tracking trajectory map; acquiring an omnibearing monitoring image of a plastic waste initial treatment station; waste visual inspection is carried out on the omnibearing monitoring image, waste multi-angle morphological structure analysis is carried out, and a three-dimensional structure model of each waste is constructed; acquiring an omnibearing monitoring image of the next transfer processing station based on the waste whole-process tracking trajectory map; and performing one-by-one form comparison on the omnibearing monitoring image based on the three-dimensional structure model of each waste so as to generate a transfer station waste form comparison result. According to the invention, efficient and accurate plastic waste tracking is realized.

A marine vessel designed for the collection, shredding, and pelletizing of oceanic plastic waste. The vessel uses renewable energy sources such as solar panels and wind turbines to power onboard systems, including AI-enhanced sensors that detect and target high-density areas of plastic debris. Once collected, the plastic is shredded and processed into uniform plastic pellets optimized for use in plastic asphalt production. The vessel also includes storage compartments for the pellets and a crane system for transferring containers filled with pellets to adjacent vessels or shore-based transport. This integrated system addresses inefficiencies in traditional ocean cleanup methods by enabling immediate onboard processing, reducing transportation needs, and repurposing plastic waste into a valuable industrial resource, while significantly minimizing environmental impact through sustainable energy use.

The invention discloses waste reutilization equipment for silicone adhesive packaging film production, and relates to the technical field of plastic waste recovery treatment, the waste reutilization equipment comprises a melting tank and a heating module mounted on the melting tank, and further comprises a partition plate; the stirring mechanism comprises a main shaft and a plurality of material mixing assemblies, and each material mixing assembly comprises a plurality of stirring blades; the material control mechanism comprises a material guide plate mounted outside the plurality of stirring blades, a plurality of through grooves formed in the material guide plate, two scraping plates mounted in the through grooves, two cutting assemblies mounted in the through grooves and a linkage assembly used for driving the scraping plates to rotate; the scraping plate is driven to move towards the edge direction of the partition plate along with the material guide plate, packaging film waste materials with different melting degrees on the surfaces of the stirring blades are scraped away, and the packaging film waste materials which are not completely molten are easily attached to the outer portions of the stirring blades, so that the waste materials are easily carried to move towards the heating module; and the part of waste enters a high-temperature area close to the heating module, and melting of the part of waste is accelerated.

Process for feeding plastic material, e.g. a plastic waste, to a processor such as a thermochemical reactor, e.g. a pyrolysis reactor. The process comprises an optional shredder or disintegrator (1), a conveying system (2), a feed hopper (3) with a lock hopper or rotary valve, a melting tank (6) with an agitator (5) followed by a melt pump (7) for the delivery of molten plastic to the processor. The advantage of the current process includes the ability to supply a consistent, metered flow to the processor, independent of the recycled plastic's melt properties, or the form or particle size and distribution of the plastic material.

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 discloses an injection mold with a plastic waste recycling function, relates to the technical field of injection molds, and aims to solve the technical problem that filamentous, drop-shaped or thin-layer-shaped residues cannot be quickly recycled when a nozzle moves back after injection molding is completed. Comprising an injection molding machine tool, an injection molding system, a nozzle, an extrusion mold, a waste cutting mechanism, a guide assembly, a softening assembly and a crushing and recycling assembly. Injection molding cavity sealing and waste automatic cutting are synchronously achieved in the barrel-shaped injection molding part production process, product appearance defects caused by wire drawing or salivation when a nozzle moves back can be avoided, waste residues can be reduced through wrapping type cutting, the purity of recycled materials is improved, immediate closed-loop waste treatment is achieved in cooperation with a smashing and recycling assembly, and the production efficiency is improved. And compared with a traditional manual or simple mechanical cutting mode, the production efficiency and the product forming consistency are improved through automatic control, environmental protection benefits and economic benefits are achieved, and the sealing and recycling requirements of large-batch barrel-shaped product production are met.

The present invention discloses a chitosan-modified highly transparent antibacterial polylactic acid film and a preparation method and application thereof. The polylactic acid film comprises the following raw materials by weight: 10 to 16 parts of modified chitosan, 35 to 55 parts of polylactic acid, 5 to 15 parts of casein, 50 to 300 parts of solvent and 30 to 50 parts of gelatin, wherein the solvent comprises hexafluoroisopropanol and acetic acid solution. The antibacterial polylactic acid film provided by the present invention has good toughness, strength and transparency, is suitable for the field of food packaging, can extend the shelf life of food, and can reduce plastic waste pollution.

The utility model discloses an anti-theft and tamper-proof soap dispenser used in public places and capable of reducing plastic use, and relates to the technical field of soap dispensers, the soap dispenser comprises a structure formed by matching an inner shell and an outer shell in a sliding sleeve mode, the inner shell and the outer shell are matched to form a closed space, and the closed space is used for containing a bottle capable of being filled repeatedly or a disposable bag. The inner shell and the outer shell are fixedly locked through a spring and a metal bolt, a clamping groove is formed in the back to enhance the connection strength, and only a magnetic key is allowed to be used for opening. According to the soap dispenser, through multiple technological innovations and design optimization, the problems that an existing soap dispenser is generally poor in anti-theft and tamper-proof effects, plastic waste is serious, pollution is caused by repeated filling, maintenance is difficult, the appearance is not attractive, and user experience is poor are solved; the method is of great significance in improving the use efficiency of cleaning supplies in public places and the user experience.

The invention relates to the technical field of plastic waste recycling, in particular to a waste recycling device for plastic processing. Comprising a machining table, the top end of the machining table is provided with a feeding conveying belt used for conveying waste to be treated, the machining table is provided with a treatment bin, a feeding groove is formed in the side, close to the feeding conveying belt, of the treatment bin, and a circulating screening mechanism used for screening the crushed waste is arranged in the treatment bin; waste materials to be treated are fed into the feeding hopper through the feeding conveying belt via the feeding groove, the waste materials are crushed through the crushing mechanism, the crushed waste materials are screened through the circulating screening mechanism, the crushed waste materials are subjected to secondary crushing through the crushing mechanism, and therefore automatic circulating crushing of the waste materials is achieved; manual operation is not needed in the whole process, crushing, screening, secondary crushing and conveying are automatically conducted, the crushing quality is greatly improved, and meanwhile the workload of workers is relieved.

The invention discloses an environment-friendly PVC-U plastic pipe fitting and a manufacturing method thereof, and relates to the technical field of plastic waste recycling, and the environment-friendly PVC-U plastic pipe fitting is prepared from the following raw materials in parts by weight: 30-50 parts of regenerated PVC particles and 50-70 parts of raw PVC resin. Plasma-nano SiO2 co-activation is combined with a supercritical CO2 extraction technology, plasticizer residues in regenerated PVC are efficiently removed, the surface activity is improved, a multi-scale mechanical interlocking structure is constructed in cooperation with a four-level plant fiber reinforcing agent, gradient density design is combined, the ring stiffness larger than or equal to 8 kN / m < 2 > is achieved under the condition that no metal reinforcing layer exists, and the performance of the regenerated PVC is improved. Meanwhile, by utilizing the synergistic effect of maleic anhydride grafting modification and pulsed magnetic field orientation curing, the compatibility of the reclaimed material and primary resin is improved, a modulus gradient interface is formed, stress concentration is effectively relieved, the recovery rate of the waste PVC pipe is increased, and the product has the self-cleaning and electromagnetic shielding functions.

The invention provides multi-mechanism collaborative plastic waste recovery equipment and method, and relates to the technical field of waste treatment equipment, the equipment comprises a recovery box, a crushing mechanism, a separation mechanism and a cleaning assembly; the crushing mechanism comprises a shell, a motor, a belt pulley and a crushing roller; the separating mechanism comprises a collecting cover, a separating hole, a conveying pipe, a collecting box and a negative pressure fan; the cleaning assembly comprises a connecting rod and a cleaning rod, and the cleaning rod makes contact with the inner wall of the collecting cover. The method comprises the four steps of intelligent material identification, dynamic adjustable crushing, multi-stage separation and collection and automatic cleaning and maintenance. Through cooperation of the crushing mechanism, the separating mechanism and the cleaning assembly, efficient separation of plastic particles is achieved; impurity accumulation is prevented through an automatic cleaning mechanism; the energy consumption is reduced through power reuse; and the automation level and adaptability of the equipment are improved through multi-stage intelligent control, and the problems of low separation efficiency and difficult maintenance in the prior art are effectively solved.

The invention discloses an injection mold for mobile phone shell production, and belongs to the technical field of injection molds.The injection mold comprises an upper mold and a lower mold matched with the upper mold, a supporting base is installed at the bottom of the lower mold, a first air cylinder is arranged on the side edge of the supporting base, and the telescopic end of the first air cylinder is installed on the side edge of the upper mold; and the upper mold is provided with an injection molding runner, the injection molding runner is located on the inner side of the sleeving block, the sleeving block is connected with the upper mold through an auxiliary spring, and a material cutting module is installed in the middle of the upper mold and used for cutting off waste in the injection molding runner and a formed part in the mold cavity. According to the injection mold for mobile phone shell production, the movable cutter is arranged in the mold, so that plastic at the joint of the runner and the mold cavity can be conveniently cut off, meanwhile, when a formed part is ejected out, the plastic attached to the runner can be outwards ejected out, and plastic waste ejected out of the runner in the follow-up process can be conveniently collected and recycled.

The invention relates to the technical field of environment-friendly tableware injection molding devices, and discloses an environment-friendly tableware production injection molding device capable of recycling plastic waste, the environment-friendly tableware production injection molding device comprises a fixing frame, the inner wall of the fixing frame is fixedly connected with a hydraulic cylinder, the output end of the hydraulic cylinder is fixedly connected with a mold pressing plate, and the front side of the mold pressing plate is fixedly connected with a moving column; a movable column is fixedly connected to the front side of the fixed frame, a fixed plate is fixedly connected to the front side of the movable column, a fixed mold shell is fixedly connected to the inner wall of the fixed frame, a sliding column is slidably connected to the inner wall of the fixed mold shell through a spring, a pressing plate is fixedly connected to the front side of the sliding column, and a push plate is fixedly connected to the rear side of the sliding column. The hydraulic cylinder can drive the push plate to move to push out the injection-molded mold in the fixed mold shell, the dependence on a heating system can be reduced by assisting in pushing out the mold, and therefore energy consumption is reduced, and it is further ensured that the shape of a product is kept complete in the demolding process.

The plastic waste crushing device with the dust removal function comprises a rack, a material box, a material pressing assembly and a crushing assembly, and the material box comprises a box body, a feeding hopper, a crushing box, a discharging hopper and an exhaust pipe; the material pressing assembly comprises a supporting plate, a lifting power element and a pressing plate. The crushing assembly comprises a first crushing roller and a second crushing roller, the first crushing roller and the second crushing roller are the same in structure, the first crushing roller comprises a first fixing seat, a second fixing seat, a rotating shaft and a sleeve, and the first fixing seat is provided with an air cavity communicating with the inflation mechanism; the rotating shaft is rotationally connected with the first fixing base and the second fixing base and provided with an air inlet groove. The sleeve sleeves the rotating shaft and is provided with an exhaust groove and a plurality of air holes communicated with the exhaust groove, one end of the air inlet groove is communicated with the air cavity, and the other end of the air inlet groove is communicated with the exhaust groove; the air cavity, the air inlet groove, the exhaust groove and the air hole form an air channel. According to the device, air is blown into the crushing box through the air channel, dust of plastic waste is blown away, and heat dissipation of the first crushing roller and the second crushing roller can be accelerated.

The invention provides waste recovery equipment for production of a wind power blade rear edge die assembly cushion block. The plastic processing waste recycling device comprises a processing frame, a bottom plate, a smashing mechanism and a pushing assembly. A waste receiving plate is mounted at the inner bottom of the machining frame, and a belt conveyor is mounted on the upper surface of the bottom plate and located below the waste receiving plate. The material pushing assembly is located in the waste material receiving plate and comprises a pushing plate and a lifting frame, the pushing plate is slidably connected to the inner wall of the waste material receiving plate, and the lifting frame is installed above the pushing plate. Therefore, the height range of the push plate can be prolonged by controlling the lifting frame to ascend through the guide wheels, accumulated plastic waste can be pushed, the waste is prevented from leaking and spilling from the top of the push plate, the accumulated waste can be treated, and meanwhile the requirement that the machining frame can machine more products at a time can be met.

The utility model relates to a continuous aluminum-plastic separation pyrolysis system, which comprises a crushing device, a conveying device, a preheating drying device, a hot melting device, a pyrolysis device, a condensing device, a cooling device, a screening device and a storage tank, the preheating and drying device is used for preheating and drying the crushed materials; the hot melting device is used for heating and melting the preheated and dried materials; the pyrolysis device is used for pyrolyzing the heated and molten material into a gaseous substance and a solid substance; the condensing device is used for condensing the gaseous substance to produce pyrolysis oil; the cooling device cools the solid substance; the screening device is used for screening the cooled solid substances with different components; the system can realize continuous aluminum-plastic separation and pyrolysis of aluminum-plastic products, the production efficiency is improved, the labor cost is saved, the whole production process is relatively closed, environment-friendly, safe and reliable, and the system is suitable for industrial and large-scale production.

The invention relates to the technical field of injection molding machines, in particular to a battery jar injection molding machine with a plastic waste recycling assembly, which comprises an injection molding machine body, an injection molding box is fixedly arranged on the injection molding machine body, an electric telescopic rod is fixedly mounted at one end of the injection molding box, and a discharge port is formed in the lower end of the injection molding box. A bearing matching plate is fixedly arranged on the portion, on the lower side of the injection molding box, of the injection molding machine body, supporting loading rods are symmetrically and fixedly arranged on the bearing matching plate, and a waste receiving sleeve is arranged on the injection molding machine body and is driven through movement of a sealing door; the sealing door can be closed to drive the waste receiving sleeve to move to the position below the discharging opening to receive waste generated in the injection molding process, after injection molding is completed, the sealing door is opened to drive the waste receiving sleeve to move away, meanwhile, the received waste can be collected in the collecting box in a centralized mode, and great convenience is achieved.

Systems and methods are provided for conversion of polymers (such as plastic waste) to olefins and / or feedstocks that can be further processed for formation of olefins, fuels, and / or other products. The systems and methods can include an optional thermal dehalogenation stage followed by an initial pyrolysis stage where a plastic feedstock is at least partially converted to lower boiling products. Prior to, during, and / or after the pyrolysis stage, one or more contaminant removal stages can be used in order to reduce the content of halides and / or other contaminants in the pyrolysis effluent. This can allow at least a portion of the pyrolysis effluent, such as a gas phase portion and / or a liquid phase portion of the pyrolysis effluent, to have a sufficiently low contaminant content to be used as part of a feed to a conventional petrochemical process.

The invention discloses a plastic particle mixer for cable material processing, and relates to the related technical field of plastic waste recycling, the plastic particle mixer comprises an arranged mixing box, two groups of feeding hoppers are arranged on the mixing box, the lower parts of the feeding hoppers are communicated with the top of the mixing box through feeding pipelines, and a driving box is mounted on the mixing box; a motor is arranged in the driving box, the output end of the motor is connected with a rotating shaft, the rotating shaft is connected into the mixing box in a penetrating manner, a stirring structure is mounted on the outer side of the rotating shaft, the stirring structure comprises a stirring part and a scraping plate which are mounted on the outer side of the rotating shaft, and a gas conveying assembly is mounted on the outer side of the rotating shaft. According to the plastic particle mixer for cable material processing, the stirring structure rotates in the mixing box to mix particles, input recycled plastic particles are scattered through cooperation of gas, the problem of uneven mixing caused by particle aggregation is avoided, and the overall mixing efficiency is improved.

Processes, reactors, and systems for converting waste plastic feedstock into liquid and gaseous products suitable for use in either fluid catalytic cracking or steam cracking to produce ethylene and propylene are described.

The invention discloses a marine-derived carboxylesterase and an application of the marine-derived carboxylesterase in degradation of PET (Polyethylene Terephthalate) plastics. The amino acid sequence of the enzyme is as shown in SEQ ID NO.1, experiments show that Tm of RbCE1 is 79.5 DEG C, 40 mM of depolymerization monomers can be generated after the enzyme treats low-crystallinity PET powder at 60 DEG C for 4 hours, the catalytic activity is equivalent to that of LCC, and good degradation activity is shown. Through escherichia coli heterologous expression, 0.4 g / L high expression quantity can be achieved in a shake flask, and the potential of remarkably reducing the enzyme production cost is achieved. Therefore, the novel carboxylesterase RbCE1 is suitable for degrading PET plastics and composite materials thereof, and is a potential enzyme preparation for efficient biological catalysis of a waste PET plastic waste enzymatic depolymerization recovery treatment process.

The invention belongs to the field of PET (polyethylene glycol terephthalate) plastic waste treatment, and particularly relates to preparation of a copper oxide-nickel hydroxide core-shell structure catalytic material and application of the copper oxide-nickel hydroxide core-shell structure catalytic material to preparation of high-added-value formic acid by upgrading electro-catalysis PET plastics, and the preparation method comprises the following steps: (1) placing a copper conductive substrate in an alkali etching mixed solution for alkali etching treatment, obtaining a conductive substrate on which a Cu (OH) 2 precursor grows; (2) placing the conductive substrate on which the Cu (OH) 2 precursor grows in a muffle furnace for heat treatment to obtain a conductive substrate on which CuO nanowires grow; and (3) placing the conductive substrate on which the CuO nanowire grows in a hydrothermal kettle, and obtaining the CuO-coated Ni (OH) 2-x core-shell structure catalyst through a hydrothermal method.

The utility model relates to the technical field of plastic waste treatment, in particular to a device for separating plastic products from waste. Comprising a crushing box, a crushing assembly and an auxiliary assembly, the auxiliary assembly comprises a screening box, a sealing plate, a mounting frame, a screen, a water tank, a fluted disc frame, a filtering cover, a positioning plate, a waterproof motor, a driving gear, a transverse plate, a magnetic rod and a vibration component, and after plastic is crushed through the crushing assembly and screened through the screen, plastic particles capable of passing through the screen fall into the filtering cover; furthermore, a waterproof motor is controlled to act, a driving gear is driven to rotate, finally, a fluted disc frame rotates, a filtering cover can rotate, after rotation, clean water is sprayed into the filtering cover through a water spraying pipe, then the plastic part can be cleaned, and finally sewage is discharged by opening a discharging valve on a water tank. And therefore, the problem that secondary utilization of the plastic waste is affected due to the fact that silt on the surface of the plastic waste cannot be removed after the plastic waste is crushed and screened by an existing device can be solved.