602 results about "Plastic waste" patented technology

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.

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 invention discloses a plastic waste recycling device and belongs to the field of plastic recycling, the plastic waste recycling device comprises a conveying belt, supporting frames are arranged on the two sides of the conveying belt, a treatment bin is fixedly connected to one sides of the supporting frames, a crushing assembly is arranged at the bottom of the treatment bin, and a magnetic separation assembly is arranged in the middle of the interior of the treatment bin. Metal blocks contained in plastic waste can be attracted by the electromagnet set, plastic can sequentially pass through the electromagnet set to enter the next link, the situation that the metal blocks damage metal parts in follow-up core equipment is avoided, the safety of the follow-up equipment is effectively improved, and the operation and maintenance cost of the equipment is reduced; under the condition that equipment does not stop working, different electromagnet sets can be rapidly switched back and forth to work, metal blocks on the surfaces of the electromagnet sets moved out of the treatment bin can be collected and treated, equipment stop is avoided, the work progress is accelerated, and the workload of workers is reduced.

The utility model discloses a plastic waste recovery processing device, which relates to the technical field of plastic recovery equipment, and comprises an operation platform and a recovery box arranged on the operation platform, a crushing cavity used for recovering and crushing waste plastics is arranged in the recovery box, and a crushing assembly used for crushing the waste plastics is arranged in the crushing cavity. Through the arrangement of the filter plate, plastic particles can be screened, so that qualified particles can directly flow out of the crushing cavity through the guide-out opening, and unqualified particles can be remained on the filter plate and then are guided out by the auger blade for secondary crushing, so that the crushing quality of waste plastics is improved; meanwhile, in the rotating process of auger blades, plastic particles accumulated on a filter plate can be pushed aside, qualified particles are prevented from being carried into a re-pulverizing channel, in addition, through arrangement of mounting protrusions and mounting bolts, the filter plate and a recycling box are detachably connected, and workers can replace the filter plate in a pulverizing cavity at any time conveniently.

The invention discloses a micro-plastic degrading bacterium P.ataveovii and application thereof, and belongs to the technical field of microorganisms. According to the invention, a strain of Priestia aryabhattai BK12 is separated and screened from plastic wastes, and the plastic degradation capability of the Priestia aryabhattai BK12 is deeply explored. A research result shows that the P.avenae BK12 can be used for efficiently degrading the PET (Polyethylene Terephthalate), and the P.avenae BK12 can be used for efficiently degrading the PET (Polyethylene Terephthalate), so that the P.avenae BK12 can be used for efficiently degrading the PET (Polyethylene Terephthalate). The invention provides a new microbial resource for the development of a plastic degradation agent, contributes to promoting the development of a biodegradable plastic technology and solving the problem of environmental pollution caused by PET, and assists in realizing the goal of green and sustainable development.

A plastic recycling method for processing plastic waste, including providing a plastic waste mixture stream having, on the one hand, a variable proportion of 2D material and a variable proportion of 3D material and, on the other hand, an inhomogeneous density distribution, the proportions varying over time. Washing both proportions of the plastic waste mixture stream together. Shredding both proportions of the plastic waste mixture stream together while supplying a cleaning fluid. Density-based separation of the plastic waste mixture stream into at least two fractions, wherein the separation is performed as a function of a predeterminable density separation cut; and for at least one of the separated fractions: separating the fraction of 2D material and the fraction of 3D material from each other.

The invention discloses a plastic waste recycling device and belongs to the technical field of plastic waste recycling, the plastic waste recycling device comprises a recycling box body, the interior of the recycling box body is of a hollow structure, and a sliding groove and a through groove are formed in the two sides of the bottom of the recycling box body in a penetrating mode respectively; a self-adaptive waste characteristic crushing assembly is arranged in the recycling box and used for treating different types of plastic waste and improving the recycling efficiency, and a screening assembly is arranged at the bottom of the self-adaptive waste characteristic crushing assembly and used for screening and classifying the treated different types of plastic waste. By adopting the self-adaptive waste material characteristic crushing assembly and the material screening assembly, the crushing and screening processes can be adjusted in a self-adaptive manner, so that different types of plastic waste materials can be separated more accurately, mixing of different materials is avoided, it is ensured that the purity of recycled materials is higher, and subsequent processing and utilization are facilitated.

A system for mechanically recycling a plastic waste stream can include first and second size reduction units, a washing system, a drying system, and an extrusion unit. The first and second size reduction units can respectively receive and shred first and second plastic waste streams to respectively produce first and second shredded plastic waste streams. The washing system (positioned downstream from the first size reduction unit) can receive and wash the first shredded plastic waste stream to produce a washed plastic material stream. The drying system (positioned downstream from the washing system) can receive and dry the washed plastic material stream to provide a dried plastic material stream. The extrusion unit (positioned downstream from the drying system and the second size reduction unit) can receive, melt, and extrude the dried plastic material stream and / or the second shredded plastic waste stream to produce a mechanically recycled plastic material.

Systems and methods are provided for co-processing plastic waste in a coker as part of an integrated refinery environment that produces kerosene, jet fuel, and / or jet fuel blending components as a product. The co-processing can be performed in a fluidized coker, a delayed coker, or a combination of fluidized cokers and delayed cokers. After coking, hydroprocessing can be performed on one or more portions of the coker effluent that contribute to formation of the kerosene, jet fuel, and / or jet fuel blending component product(s). The hydroprocessing can be used to reduce or minimize the presence of unexpected nitrogen contaminants in the resulting kerosene, jet fuel, and / or jet fuel blending component product(s).

The invention relates to the technical field of plastic waste recovery, in particular to automatic recovery equipment for hydantoin epoxy resin waste. Comprising a shell, the shell is fixedly connected with a first guide plate and a second guide plate, the shell is fixedly connected with a baffle, the shell is provided with a first electromagnetic sliding rail, a first electromagnetic sliding block is slidably connected into the first electromagnetic sliding rail of the shell, the first electromagnetic sliding block is fixedly connected with an extrusion plate, and the shell is provided with a second electromagnetic sliding rail. The second electromagnetic sliding rail of the shell is in sliding connection with a second electromagnetic sliding block, and the second electromagnetic sliding block is fixedly connected with an extrusion frame. The extrusion plate and the extrusion frame drive one side of waste to reciprocate, so that the waste is continuously bent, epoxy resin on the waste is continuously crushed and falls off, the epoxy resin recycling efficiency is improved, the waste is not directly crushed, the content of waste impurities in the recycled epoxy resin is reduced, and the epoxy resin recycling quality is improved.

The invention discloses plastic extrusion equipment for plastic waste processing and recycling, and belongs to the technical field of granulation extrusion equipment.The plastic extrusion equipment comprises a main body module, a remelting module and a quantitative discharging module, the main body module comprises an extruder main body, and the bottom of the extruder main body is fixedly connected with a bottom plate; a heat dissipation water tank is fixedly connected between the front end face of the extruder body and the top of the bottom plate, a granulator is fixedly connected to the top of the heat dissipation water tank, and a cooling assembly is arranged in the heat dissipation water tank. Through the arrangement of the lifting assembly, the equipment can distinguish over-large and over-small unqualified plastic particles, the unqualified plastic is fed into the hopper again through the lifting assembly to be remelted and extruded again, the unqualified particles are utilized, meanwhile, the discharging quality of the equipment is guaranteed, and the situation that the unqualified plastic can affect subsequent use is avoided.

The invention discloses an experimental system and an experimental method for simulating a microplastic generation rule in a landfill environment, and relates to the field of plastic degradation test equipment. When a plastic degradation test is carried out through the reactor, pressure can be applied to a sample through the pressure plate to simulate an overlying load of the landfill, and the temperature of the landfill is simulated by regulating and controlling the temperature of the reactor and the sample in the reactor through the temperature regulating and controlling mechanism; the percolate supply mechanism sprays percolate into the reactor to simulate the flowing of the percolate in the landfill, and meanwhile, the airflow regulation and control system aerates the sample to simulate the airflow load in the landfill, so that the plastic waste can be detected by simulating the coupling effect of various environmental factors on the plastic waste in the landfill. The complete degradation process of the plastic waste in the refuse landfill is accurately simulated, so that the test precision is improved, and accurate data support is provided for researching a micro-plastic generation mechanism in the landfill.

In one aspect, an elongated lighting module includes plural colors of LEDs that flash in a cyclical sequence to provide multi-spectral illumination. Several such modules can be arranged end-to-end to span a conveyor system that transports a stream of plastic waste items in a recycling center, enabling capture of differently-illuminated image frames depicting the items. Each module may include N LEDs of a first color (e.g., red) and M LEDs of a second color (e.g., blue), where N and M are different. Drive circuitry can be simplified by configuring the LEDs in strings of common colors, but with different counts. Electrical noise due to switching transients can be reduced by operating the LEDs at a low current when not being flashed. A great variety of other features and arrangements are also detailed.

The present application belongs to the technical field of enzyme engineering and plastic degradation, and particularly relates to an esterase, a preparation method thereof and application thereof in plastic degradation. Genome sequencing analysis is performed on a screened polyester plastic degrading strain, and an esterase 8GL004290 is successfully screened, which belongs to the alpha / beta hydrolase family. It is verified through experiments that the polyester degrading enzyme provided by the present application can not only degrade polyester model small molecule substrates, but also exhibits good degradation capacity for different polyester plastics. The esterase 8GL004290 has the highest degradation activity on a polyurethane substrate, and the substrate types are widely covered. Therefore, the present application has extremely important application value for the biodegradation treatment of mixed plastic waste.

The invention discloses a waste tire continuous thermal cracking feeding control method and system based on machine learning, and relates to the technical field of plastic waste recovery. The method comprises the following steps: acquiring a historical rear end socket temperature sequence and a historical internal pressure sequence of a cracker in a historical time window, and a rotation angular velocity and feeding rate sequence in a future preset time window; on the basis of the long and short-term memory network, predicting a predicted end socket temperature sequence and a predicted internal pressure sequence in a future window; with improvement of temperature, pressure and feeding rate stability as multiple targets, an adaptive feeding rate sequence is searched and output in a feeding rate adjustment space through digital twinborn simulation and an intelligent optimization algorithm in combination with the prediction sequence; and finally, carrying out feeding control on the cracker according to the sequence in a preset time window. According to the method, prospective optimization control over the cracking working condition is achieved, the hysteresis quality of traditional control is effectively overcome, and the stability, safety and automation level of the continuous thermal cracking process are improved.

The utility model provides a fixing device for punching a plastic shell, which comprises a base, an adjusting plate is fixedly mounted at the top of the base, a plurality of fixing mechanisms mounted at the top of the base are arranged on the outer side of the adjusting plate, and a plurality of elastic supporting mechanisms used for supporting the plastic shell are adjustably mounted on the adjusting plate. Through the arrangement of the adjusting plate, the elastic supporting mechanism and the fixing mechanism, the suspended part of the inner wall of the plastic shell can be supported through the elastic supporting mechanism in the using process, the position of the supporting mechanism can be flexibly adjusted in cooperation with the adjusting plate, and meanwhile the fixing mechanism fixed to the outer side of the plastic shell is matched; and compared with a traditional wood block or plastic waste supporting mode, the design can effectively avoid the problem of punching deformation caused by unstable supporting.

The invention discloses a cutting device for plastic processing, and relates to the technical field of plastic cutting. The invention includes. The device has the advantages that the high-efficiency cutting, compacting and sewage discharge weight reduction processes of plastic waste can be realized by adopting single-drive equipment, the overall manufacturing cost is lower, the cutting efficiency can be effectively improved by adopting a symmetrical opposite cutting mode, the size of plastic fragments is reduced, and the plastic waste is more convenient to transport.

The invention belongs to the technical field of composite materials, and particularly relates to a high-strength frozen fruit frame synthesized by coal gangue modified recycled plastic and a preparation method thereof. 40-70 parts of regenerated PP resin, 30-50 parts of HDPE, 0-60 parts of coal gangue and 0.5-2 parts of a composite dispersant are used as core components, the coal gangue is subjected to surface modification through the composite dispersant, the problem of interfacial compatibility between the coal gangue and a resin matrix is solved, then a sectional temperature control process of a twin-screw extruder is performed, gradient heating at 170-195 DEG C is performed, and melt blending is performed, so that the regenerated PP composite material is obtained. And finally, the high-strength frozen fruit frame which is excellent in mechanical property, has the cost reduced by 20-30% and is environmentally friendly is prepared, and synergistic high-value utilization of plastic waste and coal-based solid waste is achieved.

A method of recycling plastic waste by feeding a quantity of PET and metal-containing reclaimer co-product separated from the plastic waste to a chemical recycling facility, the quantity of metal-containing co-product comprises plastic flakes and at least 0.1 weight percent metals; and depolymerizing in the chemical recycling facility at least a portion of the plastic flakes; or depolymerizing in the chemical recycling facility at least a portion of the plastic articles, wherein the chemical recycling facility comprises a solvolysis facility for the depolymerization and the solvolysis facility is a methanolysis facility, and wherein the plastic articles are in the form of compressed bales; which further comprises processing at least a portion of the compressed bales to thereby produce a debaled quantity of plastic articles and the metals; and wherein the processing comprises reducing the size of the bales to form a quantity of plastic particulate solids having a D90 particle size of less than 2.54 cm (1 inch).

The application discloses a kind of plastic extrusion equipment for plastic waste processing recycling, belongs to granulating extrusion equipment technical field, including main module, back to furnace module and quantitative discharging module, the main module includes extruder main body, the bottom of the extruder main body is fixedly connected with bottom plate, the front end surface of the extruder main body and the top of bottom plate are fixedly connected with heat dissipation water tank, the top of the heat dissipation water tank is fixedly connected with granulator, cooling assembly is arranged in the heat dissipation water tank, by the setting of large-aperture inclined screen, small-aperture inclined screen, vibration assembly, driving assembly, lifting assembly and material guiding box, so that the device can distinguish between oversized and undersized unqualified plastic particles, the unqualified plastic is also sent into the hopper by lifting assembly to be re-melted and re-extruded, the unqualified particles are utilized, and the discharge quality of the device is ensured, so that the unqualified plastic can not affect subsequent use.

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.

Provided is a continuous process for converting waste plastic into recycle for polypropylene polymerization. The process comprises selecting waste plastics containing polyethylene and / or polypropylene and preparing a stable blend of petroleum and the selected plastic. The amount of plastic in the blend comprises no more than 20 wt. % of the blend. The blend is passed to a refinery hydrocracking unit. A liquid petroleum gas C3 olefin / paraffin mixture is recovered from the hydrocracking unit. The C3 paraffins and C3 olefins are separated into different fractions with the C3 olefin fraction passed to a propylene polymerization reactor, and the C3 paraffin fraction passed optionally to a dehydrogenation unit to produce additional propylene. A heavy fraction can also be recovered from the hydrocracking unit and passed to an isomerization dewaxing unit to prepare base oil.

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 mixture includes carbon-coated oil-treated plastic particles and particles that include geomaterial. Treating the soil at a building site includes combining carbon-coated oil-treated plastic particles and geomaterial particles to yield a mixture and providing the mixture in a built environment to enhance soil stability under freezing conditions.

The invention relates to the technical field of terminal injection molding processing, and discloses terminal injection molding processing equipment and process based on plastic waste regeneration, the terminal injection molding processing equipment based on plastic waste regeneration comprises a conveying table fixedly arranged on a blanking area of a terminal injection molding machine main body, and a collecting tank is fixedly arranged on one side of the output end of the conveying table; a lifting rod is slidably arranged at the lower end of the collecting tank, an electric push rod is fixedly connected between the end of the lifting rod and the side wall of the collecting tank, a plurality of positioning pieces are linearly distributed on the lifting rod at equal intervals, and cutting knives are arranged on the two sides of each positioning piece. The lifting rod drives the positioning piece and the cutting knife to move to precisely cut a product and separate the terminal from the drainage opening material, so that a product line is shortened, rapid separation of the product is achieved, the production efficiency is improved, meanwhile, the lifting rod and the transmission rod are matched to control the adjusting plate to turn over, the terminal and the drainage opening material are separately discharged, and material mixing is avoided.

The invention discloses a plastic waste recovery device for processing bio-based degradable materials.The plastic waste recovery device for processing the bio-based degradable materials.The plastic waste recovery device for processing the bio-based degradable materials.The plastic waste recovery device for processing the bio-based degradable materials.The plastic waste recovery device for processing the bio-based degradable materials.The plastic waste recovery device for processing the bio-based degradable materialscomprises a shell, and a feeding hopper is fixed to the upper surface of the shell; the feeding hopper communicates with the shell, and a cutting box is fixed to the inner wall of the shell. According to the plastic waste recovery device for processing the bio-based degradable material, after being cut, plastic waste is sieved in cooperation with a driving motor, a blade, a rotating disc, a connecting rod, a dust collecting box and a sieve plate, dust in the plastic waste is sieved out, and the dust is prevented from entering a melting box together with the plastic waste to be melted; therefore, the plastic raw material is impure, the performance of the raw material after plastic recovery is affected, and the problem that the property of the plastic is possibly changed due to the fact that dust is fused into the plastic when the plastic is melted is solved.

The application relates to a plastic waste recycling based injection molding machine with replaceable material pipe, which comprises a base, a slide rail arranged on the base, a reciprocating movable machine seat arranged on the slide rail, a material bucket fixedly arranged on the machine seat, an injection molding die arranged on one side of the base, a second inlet and a second outlet arranged on the material bucket, the injection molding die being provided with an injection molding feeding port, the first outlet being opposite to the injection molding feeding port, the first inlet being opposite to the second outlet, a first positioning device for assisting the installation of the material pipe on the machine seat being arranged on the machine seat, and a second positioning device for assisting the connection of the motor and the spiral feeding rod being arranged on the machine seat. The cooperation of the first positioning assembly and the second positioning assembly can assist the centering and clamping of the material pipe when the new material pipe is replaced, so that the installation time can be reduced and the work efficiency can be improved.

The application discloses a theft-proof and tamper-proof soap liquid device for public use and capable of reducing plastic use, relates to the technical field of soap liquid devices, and discloses a structure of an inner shell and an outer shell sliding sleeve cooperation. The inner shell and the outer shell are matched to form a closed space for accommodating and containing a refillable bottle or a disposable bag. The inner shell and the outer shell are fixed and locked through a spring and a metal bolt. A clamping groove is arranged at the back of the device to enhance the connection strength, and only a magnetic key is allowed to open the device. The soap liquid device solves the problems of poor theft-proof and tamper-proof effect, serious plastic waste, pollution caused by repeated refilling, maintenance difficulty, unattractive appearance and poor user experience of the existing soap liquid devices through a plurality of technical innovations and design optimization, and has important significance for improving the use efficiency and user experience of cleaning supplies in public places.

The application belongs to the field of microorganisms and provides Arthrinium phaeospermum and a microbial agent and application thereof. Arthrinium phaeospermum is Arthrinium phaeospermum LF-2024, which is preserved in the Guangdong Microbial Culture Collection Center with a preservation number of GDMCC No: 65948. The Arthrinium phaeospermum can grow by taking polylactic acid plastic as a sole carbon source and has a good degradation effect on polylactic acid plastic. The Arthrinium phaeospermum can be used as an active ingredient to prepare a microbial agent for degrading polylactic acid plastic and is applied to the biodegradation of polylactic acid plastic waste, and has a good application prospect and ecological environmental protection value.