118 results about "Plastic waste" patented technology

The present invention relates to a connectable modular container that includes cavities, projections and coupling systems designed to securely connect identical or similar containers, forming a hermetic seal that protects the stored contents effectively. These modular containers can be used individually or connected together to create a sealed container, primarily suitable for storing foods, turning the containers into multifunctional reusable products. These technical features allow secure, stable and functional connection between the containers, facilitating the sealing and protection of the contents. In addition, the invention responds to the growing need to reduce the environmental footprint generated by single-use containers. Owing to their modular design and reusability, these containers are classed as environmentally friendly and sustainable, providing an alternative that contributes significantly to reducing the polluting impact associated with the use of conventional containers, thereby reducing plastic waste and promoting a more responsible consumption model.

The invention relates to a system (1) for the thermal depolymerization of plastic waste, comprising a primary reactor (2) equipped with a heating device, an inlet (3) for feeding plastic waste, an outlet (27) for discharging an aerosol mixture, and an outlet (5) for discharging the solid residue, and the first condensation unit (4), which is equipped with the first primary vessel (10) and connected to the outlet (27) for discharging the aerosol mixture and is equipped with the outlet (6) for the liquid fraction and the outlet (7) for the gaseous fraction, further comprising a secondary reactor (8) equipped with a heating device and a catalyst and connected to the first condensation unit (4) via the outlet (6) for the liquid fraction, and further comprising the second condensation unit (9) which is connected to the secondary reactor (8).wherein a siphon-like pressure barrier (26) is arranged between the primary reactor (2) and the secondary reactor (8) and is placed in the first primary vessel (10).

A method for converting plastic waste into polypropylene includes (a) converting the plastic waste into a hydrocarbon liquid stream and a gaseous hydrocarbon stream in a catalytic pyrolysis unit, wherein the gaseous hydrocarbon stream is greater than about 60% by weight of the output and contains greater than about 40% by weight of light olefins; (b) introducing the gaseous hydrocarbon stream into one or more separation units to produce a first propylene stream, a first ethylene stream, a first butene stream, and a saturated gas stream, wherein the saturated gas stream contains C1 to C4 saturated hydrocarbons; (c) optionally, feeding the first propylene stream into a purification unit to produce a polymer-grade propylene stream; and (d) feeding the first propylene stream and, if present, the polymer-grade propylene stream into a polymerization unit to produce polypropylene.

A method for producing a higher alcohol from a waste plastic feedstock is disclosed, comprising: (a) providing a hydrocarbon feed stream comprising a pyrolysis oil feed obtained from pyrolysis of plastic waste, wherein the pyrolysis oil comprises at least 20 wt % higher olefins with a carbon number in the range C5-C20, based on its total hydrocarbon content; (b) contacting the hydrocarbon feed stream with synthesis gas under hydroformylation conditions in the presence of a hydroformylation catalyst and recovering a hydroformylation product; (c) subjecting the hydroformylation product to hydrogenation and / or a distillation to recover a higher alcohol product.

This utility model discloses a sludge dredging robot bucket assembly, including a feed hopper, a rotating blade assembly rotatably connected inside the feed hopper, a pump suction component connected to the feed hopper, and a spray component located inside the bucket. The feed hopper has a discharge port communicating with the pump suction component, and a blocking component is fixedly installed on the discharge port. The rotating blade assembly includes spiral blades and scrapers connected inside the bucket, with the scrapers facing the discharge port. By setting the rotating blade assembly inside the feed hopper, and the rotating blade assembly including spiral blades for conveying sludge to the discharge port and scrapers for breaking up accumulated sludge, the scrapers can break up sludge lumps. Furthermore, because the scrapers have sharp blades on both sides and at their ends, these blades can cut through fiber or plastic waste blocking the discharge port during rotation, thus preventing obstruction of the discharge port.

This invention relates to the field of plastic recycling technology and discloses a plastic waste recycling device for phenolic resin material processing. The device includes a shell, a discharge cylinder at the bottom center of the shell, and a cleaning tank with a centrally open water outlet hole on its surface, which is vertically slidably mounted on the outer side of the discharge cylinder via a sliding assembly. A drive device is installed at the bottom of the shell to rotate the discharge cylinder, and a cylinder is fixed at the top of the shell. This invention uses the drive device to rotate the cleaning tank at high speed, generating centrifugal force. This, combined with an impeller, causes water to flow upwards, creating an irregular water flow impact. This allows the waste to move irregularly in the cleaning liquid, effectively preventing the sinking or floating of phenolic resin waste of varying densities, ensuring full contact between the waste and the cleaning liquid. Simultaneously, the cleaning liquid circulates and filters impurities through a filter shell, preventing secondary adhesion of impurities to the waste and improving the cleaning effect.

This invention relates to the field of plastic waste crushing and treatment technology, and discloses a plastic product processing and crushing equipment, including a processing box with an inlet and an outlet. The processing box contains a crushing mechanism and a movable plate, with the inlet of the crushing mechanism positioned between it and the movable plate. The movable plate can move vertically within the processing box. The movable plate has several through holes along its length, and screening plates are installed on the through holes. The movable plate also has several curved plates for guiding particles to the screening plates, with the through holes and curved plates spaced apart along the length of the movable plate. The invention further includes a drive mechanism for driving the movable plate in vertical reciprocating motion and a cleaning mechanism for cleaning the multiple screening plates. This invention mainly solves the problem that existing crushing equipment lacks screening functionality for the crushed material, and that manual screening results in low work efficiency.

The present disclosure relates to a biodegradable pot plant cultivation that simultaneously provides structural support and biostimulant functionality. The pot is made of renewable natural materials, a biodegradable binder, and microalgae incorporated as a biostimulant, that safely decompose in the soil or substrate. Its porous structure ensures balanced water retention and aeration, and mechanical integrity sufficient for handling and early plant growth and creating an ideal environment for plant growth and reducing irrigation needs, increasing too the resilience for climate change. During use and biodegradation, microalgae and optional incorporated additives are gradually released through hydration, diffusion and disintegration of the material, providing a localised and time-controlled biostimulant effect, synchronised with the healthy and vigorous development of the plant root system. The pot is designed to be placed directly in the soil without removal, thus reducing plastic waste, transplant shock, irrigation needs, and planting and cultivation operation times and costs, making it suitable for applications in horticulture, forestry, and greenhouses. The pot is designed for compatibility with automated planting systems, enhancing horticultural efficiency. It addresses the environmental concern of plastic overuse in horticulture, offering a sustainable, cost-effective, and practical solution for modern horticulture.

An asphalt concrete product comprising of the following materials: 69.6 grams of bitumen, 734.76 grams of coarse aggregates, 305.21 grams of fine aggregates, 90.43grams of fillers, and 12 grams (1%) to 36 grams (3%) dried cut pieces plastic wastes cooked altogether as asphalting materials conferring to the procedures of making asphalt concrete. The wastes out of plastic and cellophane will replace part of bitumen from 12grams (1%) to 36grams (3%) of the total parts in an asphalt concrete product. The product has the characteristics of significant lesser weight densities ranging from 2.157g / cm3 to 2.280g / cm3 , comparable water absorption rates at percentages from 0.224% to 0.397% and with improved Marshall Stability results from 3,593.64lbs to 3,620.80lbs.

The application discloses a kind of hierarchical PU insole production waste crushing regeneration recovery device, it is related to insole production field, including cylinder, vertical crushing mechanism and negative pressure backflow mechanism, the upper portion of the cylinder is equipped with top cover, the upper portion of the top cover is fixedly connected with low-temperature embrittlement treatment mechanism for the brittle and conveying of polyurethane plastic waste.The application, by three-stage gradient low-temperature embrittlement design, is matched with the turning and anti-sticking structure of the first auger conveyor and the second auger conveyor, weakens the elasticity of PU waste from the source, ensures that the material is brittle and uniform, completely eliminates the crushing rebound hidden danger, lays the foundation for efficient crushing of plastic waste, two-stage collaborative crushing and pushing mechanism reciprocating lifting design is combined, impact shearing and precision cooperation of rotary grinding are realized, matched with the guiding of material hopper to avoid material accumulation, compared with traditional one-way crushing, the crushing uniformity of plastic waste is greatly improved.

This invention relates to a method for preparing a polymer composition, the method comprising the steps of: (a) processing at a temperature T 混合 (a) Mixing the polymer or polymer blend with the azide derivative of formula (I): N3-Ar(I), wherein Ar is a heteroaromatic group, and (b) heating the mixture from step (a) to a temperature T. R T 混合 The glass transition temperature or melting temperature of the polymer used in step (a) is higher than that of the polymer used in step (a), or the highest glass transition temperature or melting temperature of all polymers present in the polymer blend of step (a) at a content of at least 8% by weight relative to the total weight of the blend, T R Equal to or higher than the decomposition temperature of the azide in formula (I), and T 混合 Strictly below T R The present invention also relates to polymer compositions obtained by the method of the present invention. The present invention further relates to the use of the additive N3-Ar of formula (I) for upgrading recycled plastics or mixtures of plastics.

The present invention aims to provide packaging paper that can reduce plastic waste and a method for manufacturing the same. [Solution] The present invention relates to a method for manufacturing packaging paper having at least one barrier layer on at least one surface of a paper substrate, characterized in that the barrier layer is provided by gravure printing and the coating roll plate is a honeycomb plate.

The present application relates to the field of plastic waste recycling, in particular to a plastic pipe production surplus material recycling device, comprising a recycling box, a PCL control cabinet is installed on one side of the recycling box, a cleaning barrel is installed on the upper inner wall of the recycling box, and the inside of the cleaning barrel is communicated with the top of the recycling box, and a water pump is symmetrically installed below the inside of the recycling box. The present application is characterized in that the three levels of sieve barrels are nested in a decreasing size of sieve hole, and the differential rotation realizes automatic classification of surplus materials, the spiral scraper synchronously prevents blockage and improves the cleaning effect, completes the integrated operation of cleaning and classification, improves the recycling efficiency and the quality of the recycled materials. At the same time, a single servo motor transmits power through a planetary gear train composed of a sun gear, a planetary gear and a gear ring, directly drives the upper planetary crushing mechanism after amplifying the torque, without an additional power source, simplifies the structure, reduces the cost and energy consumption, and cooperates with the crushing structure of revolution and rotation, significantly improves the crushing efficiency and quality.

The present application belongs to the technical field of plastic waste recycling, and discloses a plastic waste recycling device, which comprises a feeding box, a separation frame, a collecting cover, a cleaning cover, a dryer, a fixing frame and a linkage frame. The inner wall of the separation frame is provided with a groove, a separation rod, a guide plate and a sliding shaft. The top is assembled with a reciprocating screw rod, a moving rod, a spring telescopic rod and a magnetic cleaning brush through the fixing frame and the linkage frame, and is driven by a servo motor to realize reciprocating cleaning. The inner wall of the cleaning cover is connected with a pipe at both ends. The inner wall of the pipe close to the dryer is conical. A cleaning corrugated cylinder and an auger are arranged inside. A driving assembly is arranged on the outside. The dryer is connected through a conveying pipe. The present application realizes accurate separation of metal and plastic through the magnetic attraction reciprocating one-way cleaning structure, solves the problem of plastic retention, adopts the conical connecting pipe leak-proof design to reduce the loss of cleaning liquid, cooperates with the corrugated cylinder and the auger for cleaning, greatly improves the cleaning efficiency and the recovery purity, has strong structure linkage, continuous and efficient treatment, and significantly improves the practicality.

The application provides an inner light source coupling micro-nano carbon supply reinforced microalgae plastic removal and carbon fixation system and method, which comprises a light reinforcement module, a micro-nano gas oscillation carbon supply module, a photobioreactor main body and an algae plastic collection and resource utilization module; the light reinforcement module, the micro-nano gas oscillation carbon supply module and the algae plastic collection and resource utilization module are connected with the photobioreactor main body respectively; the light reinforcement module adds carbon quantum dots and plant hormone IAA into the photobioreactor main body, and realizes composite illumination in cooperation with illumination; the micro-nano gas oscillation carbon supply module transports micro-nano dispersed CO2 into the photobioreactor main body, and makes the deagglomeration of microplastics in water; the algae plastic collection and resource utilization module collects, processes and realizes resource utilization of the microalgae mixture adsorbing microplastics in the photobioreactor main body. The application aims to realize efficient removal of microplastics, efficient fixation of CO2 and resource utilization of biomass.

The present invention aims to provide a molded product made of polyester resin using marine plastic waste, while also providing a molded product with excellent handling properties and shape recovery. [Solution] The present invention provides a molded article containing recycled polyester resin, wherein the recycled polyester resin comprises granular material with a particle size of 1000 μm or less, comprising 4250 particles / m². 2 The above applies to molded products. The recycled polyester resin is preferably made from recycled marine plastic.

The utility model discloses a modular corrosion -resistant plastic waste gas treatment tower's sealed connection structure, including two modular tower spare, the modular tower spare one end fixedly connected with assembly flange, the assembly flange top is passed through and is set up a plurality of assembly jack, the modular tower spare top edge is seted up with assembly sealing groove, the other end fixedly connected with installation flange of the modular tower spare, the modular tower spare outside wall is connected with the connecting assembly. The utility model, through the adjustment sealing rubber pad of two adjustment sealing clamps inside and carry out sealing between assembly flange and the flange of butt joint, limit the pull block, and give the limit insert bar a restoring force with the limit spring, make through the limit mouth on the moving clamping plate, thereby carry out the limit sealing limit between connecting flange and assembly flange, make fully install the sealing of modular waste gas treatment tower spare, and can dismantle and repair to a certain module, thereby improve the use effect.

The present application provides a kind of wood plastic material recycling equipment, it is related to wood plastic waste processing technical field, including: waste conveying mechanism, it includes conveying frame, first chain plate conveyor, second chain plate conveyor, installation component and third chain plate conveyor, first chain plate conveyor and second chain plate conveyor are fixedly installed in the inside of conveying frame.The present application is when using, it is realized to wood plastic waste from conveying, cleaning to the continuous operation of broken and crushed;Waste conveying mechanism can extrude broken surface soil block when conveying wood plastic board waste, to remove the soil block existing on the surface of wood plastic board, the lower cleaning roller and the upper cleaning roller of roller brush cleaning mechanism reverse rotation, can further clean the impurities remaining on the surface of waste, improve the cleanliness of broken wood plastic board;Waste crushing mechanism is through the preliminary crushing of broken roller and the fine crushing of crushing component, completes waste resource treatment, and lower cleaning roller can be extended to fixed shell and crushing component contact.

This invention discloses a waste recycling device for FIBC (Flexible Intermediate Bulk Container) processing, relating to the field of comprehensive environmental utilization of solid waste. The device includes a hollow frame, a hydraulic rod mounted on the hollow frame, and a pressure plate mounted on the hydraulic rod. The equipment continuously feeds FIBC waste into a flattening machine. The pressure plate is automatically triggered by the weight of the waste, achieving a complete automatic cycle of feeding, weighting, triggering, compaction, resetting, and locking, thus improving waste recycling efficiency. When not in operation, the pressure plate is rigidly limited by a limiting mechanism, preventing hydraulic system depressurization or accidental drop. This ensures uniform compaction density of the plastic waste, reducing the mixing and adhesion of plastic and impurities due to insufficient compaction, facilitating subsequent separation of plastic from other components. It also protects core components such as the hydraulic rod and pressure plate, extending equipment lifespan, reducing maintenance costs, and contributing to the resource-based recycling of plastic waste and comprehensive utilization of solid waste.

The application discloses a regenerated polyester drawing treatment equipment and relates to the technical field of regenerated plastics. A melting cabin is arranged below a base, and a driving motor is arranged above the base. The output shaft of the driving motor drives the rotation of an extrusion mechanism in the melting cabin. A shaft coupling is arranged between the driving motor and the melting cabin. A pre-melting cabin is arranged at the upper end of the melting cabin. A melting mechanism and a dedusting mechanism are arranged in the pre-melting cabin. After the plastic material is melted in the pre-melting cabin, the dedusting mechanism is used to remove impurities from the molten plastic solution. The pre-melting cabin is used to preliminarily heat and screen the recycled plastic particles. Then, the molten slurry is directly injected into the melting cabin for secondary heating and polymerization, and then, the subsequent drawing operation is performed. The energy consumption of multiple heating is reduced. The pre-melting cabin can remove impurities from the recycled plastic waste, and the quality of the subsequent plastic products is improved.

The application relates to the technical field of plastic waste recycling equipment, and discloses a waste recycling equipment for plastic production, which is used to solve the problems of poor cleaning of plastic waste flying missiles during crushing and poor cleaning of the plastic waste after crushing. During the crushing process, a power cylinder pulls a power plate, the power plate pushes a downward pressing rod to press the waste above the two crushing rollers, the waste enters between the two crushing rollers, and the waste flying missiles entering between the two crushing rollers are prevented; the downward pressing rod pushes a supporting rod and a sliding block to move downward, the sliding block drives the supporting shaft, a turnover plate and a power gear to move downward, the power gear moving downward drives the supporting shaft and the turnover plate to rotate synchronously, so that the turnover plate pushes the crushed waste cleaned below the crushing roller to the discharge port of the cleaning pool; meanwhile, the turnover plate moving downward presses the crushed waste into the washing liquid in the cleaning pool, the crushed waste is fully cleaned, and the floating of the crushed waste is prevented to cause incomplete cleaning.

The application relates to the technical field of waste plastic recycling, and discloses a mixed plastic waste high-value recycling method based on pre-classification and sequential depolymerization. First, mixed plastic waste is crushed and dried, then wet flotation is carried out by using two solutions with different densities, and PET-rich material pieces, PS-rich material pieces and polyolefin-rich material pieces are separated. Subsequently, the PET-rich material pieces are subjected to catalytic alcoholysis to recycle high-purity bis-hydroxyethyl terephthalate monomers; the PS-rich material pieces are subjected to catalytic pyrolysis to recycle high-purity styrene monomers; and the polyolefin-rich material pieces and process residues are subjected to pyrolysis to be converted into pyrolysis oil. By the strategy of 'first separation and then treatment', high-selectivity and high-yield recovery of high-value components in complex mixed plastics is realized, the process route is clear, and the method is economic and environmentally friendly.

This invention belongs to the field of biodegradable plastic preparation technology, specifically relating to a method for preparing and applying bamboo powder-filled reinforced biodegradable plastics. Cellulose in bamboo powder is extracted using a eutectic solvent and then compounded with polylactic acid (PLA) and polybutylene adipate / terephthalate (PBAT) to prepare high-performance biodegradable plastics. Bamboo powder, as a natural and renewable resource, has broad application potential, but its use in plastics faces problems of poor dispersibility and compatibility. This invention treats bamboo powder with a eutectic solvent, breaking the hydrogen and chemical bonds between lignin, hemicellulose, and cellulose, thus improving the extraction efficiency and purity of the bamboo powder. The extracted bamboo powder cellulose, compounded with PLA and PBAT, significantly improves the mechanical and degradation properties of the plastic. This composite material exhibits excellent performance in tensile strength and impact resistance, can achieve full degradation, and can reduce the long-term environmental impact of plastic waste. This paper utilizes bamboo powder, PLA, and PBAT to prepare biodegradable plastics, which has the advantages of wide availability of raw materials, low cost, and easy film formation, providing a green and environmentally friendly material and innovative process for the development of biodegradable plastics.

This invention relates to a method and chemical apparatus for separating steam cracker feedstock from a liquid stream containing at least one type of plastic pyrolysis oil, preferably derived from plastic waste. The liquid stream is converted in a first hydrotreating step, and then a stream of organic compounds depleted of C-C double and / or C-C triple bonds is separated from the hydrotreated liquid stream and subjected to a second hydrotreating step to produce a steam cracker feedstock stream from the hydrotreated stream. The method and chemical apparatus according to the invention are suitable for avoiding undesirable polymerization and scaling.

The application discloses a kind of based on plastic waste recovery injection molding equipment, it is related to injection molding technical field, including frame, upper end is fixed with injection molding component, the injection molding component is driven by conveying motor;Heating equipment is wrapped in the outer wall of the injection molding component, and its heating temperature is stepwise heating;Hopper component is fixed above the injection molding component;Feeding equipment is erected on the frame, and discharge port corresponds with the hopper component, the feeding equipment is intermittent feeding;Drying equipment is connected with the position close to the lower side of the hopper component using pipeline;Clamping equipment is fixed on the frame, and is communicated with the output end of the injection molding component.

This invention discloses a hot-pressing device for children's backpacks based on the recycling and reuse of plastic waste, relating to the field of hot-pressing technology. It includes a frame; a hot-pressing die is fixedly installed on a worktable inside the frame; a heating pipe is installed inside the hot-pressing die; the heating pipe is connected to a heating device inside the frame; a protruding module is fitted onto the top of the hot-pressing die; the protruding module is fixedly installed at the bottom of a moving plate; the moving plate is fixedly installed with an electric push cylinder; the electric push cylinder is fixedly installed on the top plate of the frame; when the plastic sheet to be hot-pressed is transported to the top via a transfer frame, and the electric push cylinder drives the moving plate and the protruding module downwards to cooperate with the hot-pressing die for hot pressing, the connecting plate engages with the gears through the meshing of the toothed plate and the gears, and the engagement between the push post on the outer side of the annular block and the second arc-shaped groove. At this time, the rotating cylinder rotates counterclockwise, and the rotating cylinder drives the lifting rotating rod to rotate through the protruding post, thereby moving the suction cup at the bottom of the mounting frame to one side of the hot-pressing die to avoid interference with the hot pressing process.

Provided here are methods and systems for converting mixed plastic waste into pyrolysis oil with a filtration unit integrated upstream of one or more reactors. A method provided herein includes depolymerizing a polyolefin feed stream to produce a molten oligomer stream and a chlorine-rich gas stream and dechlorinating the molten oligomer stream to produce a dechlorinated molten oligomer stream and a chlorine-rich fluid stream. The method includes filtering the dechlorinated molten oligomer stream through a heated melt filter to produce a filtered molten oligomer stream and a solid residue. The method includes thermally cracking the filtered molten oligomer stream to produce a cracked product stream, distilling at least a portion of the cracked product stream to produce a pyrolysis oil product stream having a final boiling point of about 350 degrees Celsius (°C) or less and a heavy distillate stream, and supplying the pyrolysis oil product stream for steam cracking.

The invention is directed to a hydratable concentrated surfactant composition. The composition is pourable, easy to dilute, substantially free of sulfate and oil, comprises a C6-C14 acid, alcohol or both, an anionic surfactant comprising acyl isethionate and an amphoteric surfactant, zwitterionic surfactant or both. The composition is in lamellar phase and thickens and transforms to an isotropic phase upon dilution. The composition can be used as a concentrate in small volumes and diluted as used and needed or can be diluted with water in refill packaging to ensure a reduction in plastic waste.

The application provides a preparation and application method of an amino hybrid SiO2 aerogel for purifying propylene in poly-3-hydroxybutyrate pyrolysis gas. In view of the problems that the existing amino adsorption material has poor selectivity in a complex biomass pyrolysis gas environment, the adsorption capacity is not optimized for specific components, and there is a lack of special technical scheme for carbon capture in the resourceization process of PHB waste, the amino hybrid SiO2 aerogel with a specific hierarchical porous structure is prepared by an in-situ polymerization method, and is specially used for treating specific component flue gas generated by high-temperature pyrolysis of PHB. The method fully utilizes the strong structural stability of the amino hybrid aerogel, the high selectivity of the amino active site, and the promotion effect of water vapor in the flue gas on the amino adsorption of CO2, and realizes high-capacity and high-selectivity capture of CO2 in the presence of propylene and other interfering gases. The application provides an efficient carbon capture solution for the resourceization treatment of biobased plastic waste.