574results about "Waste processing" patented technology

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.

Proposed is a food waste disposal apparatus for automatically discharging food waste by compressing (naturally dewatering), cutting, and drying food waste. More specifically, proposed is a food waste disposal apparatus having a corrugated part provided at an input hole so that same can be bent in all directions, and thus construction is facilitated, and having, at a predetermined distance away from a drying drum that generates high heat, an exhaust fan for discharging internal air of a drying and discharging part, so as to minimize breakdown of the exhaust fan caused by high heat, and enable vibration and noise of the exhaust fan to be prevented.

The invention discloses a recovery device and a recovery method for a photovoltaic multi-layer stacked assembly. The recovery device comprises a dismounting unit, a pyrolysis unit and a waste gas treatment unit which are arranged in sequence, the pyrolysis unit comprises a tunnel kiln, a bearing assembly and a conveying assembly. The recycling method comprises the steps that S1, the disassembling unit is used for disassembling, and the frame is stripped; s2, the photovoltaic multi-layer laminated assembly is sent to a pyrolysis unit for pyrolysis, and a glue film layer in the photovoltaic multi-layer laminated assembly is removed; and S3, the waste gas is discharged after being treated. By means of the innovative disassembling system, the multi-plate stacking tunnel kiln pyrolysis scheme and the multi-stage waste gas treatment system, the industrial production capacity of treating 1-3 tons of photovoltaic panels per hour can be achieved, the pyrolysis effect is good, the silicon material recovery rate can reach 98.5% or above, energy consumption is low, and the tail gas emission index is superior to the national standard by 50% or above.

The invention provides a high-value recovery method and device for a retired double-glass photovoltaic module. The high-value recovery method comprises the four steps of lossless disassembly of a frame and a junction box, gradient separation of double-sided glass, segmented pyrolysis of inert gas and material sorting. On the basis of gradient pyrolysis and flexible separation and recovery technologies, nondestructive recovery of the double-sided glass is realized, and complete separation of the double-sided glass is realized by gradient heating and flexible stripping technologies; high-value battery pieces are reserved, and thermal damage is avoided through segmented pyrolysis and ultrasonic vibration; resources are circulated in a closed-loop mode, the reutilization rate of glass, battery pieces and welding strips is high, and the retired double-glass assembly can achieve all-material closed-loop recycling.

An apparatus for sampling landfill gas from a landfill flowing through a pipe. The apparatus may comprise: an enclosure configured to receive a section of the pipe; a gas sampling port in the section of the pipe; at least one sensor device disposed in a region of the enclosure, the at least one sensor being coupled to the section of the pipe through the gas sampling port; and thermal insulation positioned to retain heat from the section of the pipe in the region of the enclosure. A method of operating a landfill gas recovery system. The method may comprise: flowing gas from a well riser pipe through a sampling subsystem to a collection system; and heating a portion of the sampling subsystem with the gas flowing from the well riser pipe to the collection system.

Provided is a sorting method for valuable resources, including a thermal treatment step of thermally treating a target containing valuable resources, to melt aluminum and separate a melt, a pulverizing step of pulverizing a thermally treated product remaining after the melt is separated, to obtain a pulverized product, a magnetic sorting step of sorting the valuable resources from the pulverized product by a magnetic force, and a wind force sorting step of sorting one valuable resource from another valuable resource in the valuable resources by a wind force.

The present invention relates to a resin-based nano-iron oxide enhanced microbial inoculant, its preparation method and application. After mixing the resin-based nano-iron oxide, the microbial inoculant and kitchen waste, at room temperature, the resin-based nano-iron oxide can enhance the degradation of kitchen waste by the microbial inoculant through multiple functions such as accelerating microbial proliferation, inducing the highly active expression of functional proteases, and accelerating the electron transfer process. The alternation of aerobic and anaerobic environments can give full play to the role of the microbial inoculant, and the metabolites have high biodegradability. After a reaction at room temperature for 3 to 5 hours, the weight loss rate of kitchen waste can reach 80% to 99%. The technology of the present invention is simple, has low energy consumption and no secondary pollution, and can effectively achieve the goals of reducing, recycling and harmless treatment of kitchen waste.

The invention discloses a circulating assembly line for pyrolyzing waste photovoltaic panels. The device comprises a feeding section, a pyrolysis section, a discharging section and a recovery section, a material conveying tray is arranged on the feeding section, the feeding section comprises a linear material conveying section and a rotary material conveying section, the tail end of the linear feeding section is connected with the head end of the rotary section, the linear feeding section comprises a feeding device, and the feeding device is used for placing waste photovoltaic panels on the rotary tray; the head end of the pyrolysis section is connected with the tail end of the rotary feeding section, and the pyrolysis section comprises a pyrolysis furnace for heating the waste photovoltaic panel; the discharging section comprises a linear discharging section and a rotary discharging section; the head end of the recycling section is connected with the tail end of the rotary discharging section, the tail end of the recycling section is connected with the tail end of the discharging section, the recycling section comprises a collecting device, and the collecting device is used for collecting waste photovoltaic panels after pyrolysis. In the process of crushing and recycling the waste photovoltaic panels, the links of feeding, decomposing, recycling and conveying do not need manpower participation, and the recycling efficiency is greatly improved.

This invention belongs to the field of photovoltaic recycling, specifically relating to a method for the comprehensive recycling of waste photovoltaic modules, comprising: disassembling waste photovoltaic panels to separate photovoltaic laminates, aluminum frames, and junction boxes; crushing the photovoltaic laminates to obtain photovoltaic crushed material; subjecting the photovoltaic crushed material to a decomposition reaction to break down the EVA adhesive into non-adhesive molecules; sorting the decomposition reaction-treated photovoltaic crushed material to separate glass, plastic backsheets, and copper powder to obtain a silicon powder mixture; dissolving the silicon powder mixture to obtain a silver-containing solution and silicon powder precipitate; separating the silicon powder precipitate and converting the silver-containing solution into elemental silver for recycling. This invention performs in-depth processing based on physical sorting, further purifying the silicon powder while obtaining valuable metallic silver, increasing economic benefits, reducing recycling costs, and achieving efficient and green recycling of photovoltaic modules.

The invention provides a waste photovoltaic panel pyrolysis nondestructive recovery system and method, and relates to the technical field of photovoltaic panel pyrolysis, the system comprises a pretreatment unit, a mechanical treatment unit and a chemical treatment unit, the pretreatment unit is used for dismounting an aluminum frame, a junction box and a back plate on a waste photovoltaic panel; the mechanical treatment unit comprises a low-temperature pyrolyzing furnace and a cutting machine which are connected with each other, the low-temperature pyrolyzing furnace is connected with the pretreatment unit and is used for softening an EVA adhesive film on the waste photovoltaic panel, and the cutting machine is used for cutting the softened EVA adhesive film so as to separate a glass sheet from a battery piece; the chemical treatment unit comprises an acid-base treatment module and an electrochemical recovery module which are connected, the acid-base treatment module is connected with the cutting machine and used for recovering aluminum back electrodes on the battery pieces, and the electrochemical recovery module is used for electrolyzing and recovering silver electrodes on the battery pieces to obtain silicon wafers. According to the invention, nondestructive recovery of the silicon wafer can be realized, the recovered silicon wafer can be directly reused for photovoltaic panel production, and the production cost of the photovoltaic panel is reduced.

In a system and a method for reprocessing ultra-high molecular weight polymer film offcuts, the system comprises a feed device 202 and a comminution device 203. The feed device is configured to provide an ultra-high molecular weight polymer film offcut to the comminution device. The comminution device comprises at least one cutting screen, wherein the cutting screen comprises a plurality of screen openings and a plurality of cutting projections, wherein at least one cutting projection spans a cutting opening allocated to it, and wherein the comminution device is configured to generate relative motion between the cutting screen and the fed polymer film offcut in order to comminute the polymer film offcut.

The invention belongs to the technical field of photovoltaic recycling, and particularly relates to a photovoltaic module cleaning and recycling method which comprises the following steps: crushing and disassembling a cleaned photovoltaic module to obtain crushed small-particle-size fragments; freezing the small fragments, crushing again, selecting first-grade fine particles after crushing, and putting the first-grade fine particles into a supercritical water oxidation instrument for EVA (Ethylene Vinyl Acetate) decomposition; the decomposed product enters a centrifugal machine to be graded, secondary coarse particles are separated out, and the secondary coarse particles are subjected to acid leaching; and grading the mixed solution after acid leaching, and screening out the silicon-containing micro-nano material and the silver-containing slurry. By introducing the process steps of mechanical disassembly, liquid nitrogen freezing, superfine grinding and the like, efficient recovery of metal silver and silicon materials in the retired photovoltaic module can be realized.

The material sorting equipment comprises a first granularity sorting device, the first granularity sorting device is connected with a shape sorting device and a specific gravity sorting device, and the shape sorting device is connected with the first granularity sorting device; the specific gravity sorting device is connected with the second granularity sorting device, and the second granularity sorting device is connected with the first optical characteristic sorting device and the second optical characteristic sorting device. The method comprises the steps that (1) the waste assemblies enter the first granularity sorting device to be sorted; (2) the shape sorting device sorts out metal strips, and the step (1) is repeated for other substances; (3) a glass mixture and a silicon wafer mixture are sorted out by the specific gravity sorting device and enter a second granularity sorting device and a second optical characteristic sorting device respectively; 4, the silicon wafer mixture is sorted by the second granularity sorting device and enters the first optical characteristic sorting device.The device has the advantages that the recovery speed and the recovery rate of glass, silicon wafers and metal strip materials in photovoltaic module recovery are increased.

Embodiment herein discloses methods and devices for waste management by using an artificial intelligence based waste object categorizing engine. The method includes acquiring at least one image and detecting at least one waste object from the at least one acquired image. Additionally, the method determines that the at least one detected waste object matches with a pre-stored waste object and identifies a type of the detected waste object using the pre-stored waste object. Furthermore, the method includes displaying the type of the detected waste object based on the identification.

A method is provided for recycling an aerosol generating article comprising a non-liquid aerosol generating material and an inductively heatable susceptor. The method comprises a first step of shredding the aerosol generating article to break up the non-liquid aerosol material and the inductively heatable susceptor. The method comprises a second step of separating the inductively heatable susceptor and the non-liquid aerosol generating material.

A method of treating an auxiliary article for use in the manufacture of an article comprising an epoxy polymer is provided. The method includes providing an auxiliary article for use in the manufacture of an epoxy polymer, wherein the auxiliary article is contaminated by a contaminant including an uncured, partially cured, and / or fully cured epoxy polymer. Further, the contaminated auxiliary article is exposed to a release agent to release contaminants from the auxiliary article and form contaminant by-products including the release agent and the contaminants, ultimately separating the auxiliary article from the contaminant by-products. In the method, the epoxy polymer is an acid-cleavable epoxy polymer, and the release agent includes an acid.

Disclosed is a lithium recovery system for black mass, including: a heat treatment unit that performs heat treatment to convert the black mass into soluble substances and insoluble substances; a water leaching unit that leaches the heat-treated black mass with water to separate the heat-treated black mass into a water leaching solution, which contains lithium ions and carbonate ions, and insoluble substances; and an impurity removal unit that removes impurities contained in the water leaching solution by lowering pH of the water leaching solution through addition of carbon dioxide-containing gas to the water leaching solution.

A process is disclosed for recovering soft poly(vinyl butyral) from a plasticized poly(vinyl butyral) multilayer sheet comprising stiff poly(vinyl butyral) and soft poly(vinyl butyral). The multilayer sheet. which may be scrap or recycled material. is first converted to a granulate form and then treated with plasticizer. This plasticizer treatment serves to remove the soft poly(vinyl butyral) component from the granulate. but thereby provides a varnish comprising the soft poly(vinyl butyral) mixed with excess plasticizer. This varnish is however highly viscous and thus difficult to handle or mechanically process. The present disclosure provides a solution to this handling problem by the addition of soft poly(vinyl butyral) having a lower concentration of plasticizer to the varnish. until a product is obtained having a sufficiently low concentration of plasticizer to render the product capable of mechanical processing. for example pelletizing. The resulting product can then be utilized to form soft poly(vinyl butyral) sheets, thereby improving the recyclability of scrap multilayer poly(vinyl butyral) materials.

Proposed are a pyrolysis reactor and an apparatus having the same for recovering carbon fiber and glass fiber. The pyrolysis reactor includes an inner casing, a shaft, at least one movement module, and at least one stirring module. The movement module moves a waste composite material within the inner casing, and the stirring module mixes the waste composite material with hot air within the inner casing. By effectively transferring heat to the waste composite material by using the stirring module, time required for a pyrolysis process is decreased.

The present invention relates to a process for purifying a plastic feedstock comprising polypropylene, involving:a) dissolving the plastic feedstock in a dissolution solvent comprising a hydrocarbon-based compound having a boiling point of between −15° C. and 100° C., at a dissolution temperature of between 150° C. and 250° C., a dissolution pressure of between 1.0 and 18.0 MPa absolute, to obtain a crude polymer solution;b) purifying the crude polymer solution, comprising:b1) separation of the insoluble matter;b2) washing, with a dense solution;b3) extraction, with an extraction solvent; and / orb4) adsorption of the impurities; and thenc) solvent-polymer separation, using a supercritical separation section, at a temperature of between 160 and 300° C. and a pressure of between 2.7 and 10.0 MPa absolute, followed by at least one solvent recovery section, to obtain purified polypropylene.

A battery recycling system according to the present disclosure includes: a primary crushing device configured to crush a case of a discharged secondary battery to expose an electrode material; an electrolytic solution recovery device configured to heat the secondary battery whose electrode material has been exposed under a reduced-pressure environment to recover an electrolytic solution contained in the electrode material; a secondary crushing device configured to further crush the secondary battery whose electrolytic solution has been recovered; a sorting device configured to sort crushed objects of the secondary battery; and an adjustment device configured to adjust an atmosphere in each of the devices to an N2 atmosphere, and further includes: a plurality of first sensors configured to detect oxygen concentrations in the respective devices; a second sensor; and a control device that causes the second sensor to selectively detect the oxygen concentration in each of the devices.

A method for producing articles and semi-finished products made from cellulose acetate, comprising recovering cellulose acetate waste from previously produced cellulose acetate articles and / or semi-finished products, dispensing or placing a mixture of at least one polymeric material into a mold, and applying heat and pressure to the mixture in the mold to form the article or semi-finished product. The mixture is at least partially formed from the cellulose acetate waste, and the article and / or semi-finished product may be subjected to a cooling and pressure step. The mixture is at least partially formed from cellulose acetate fragments.

A food waste disposer according to one embodiment of the present invention is characterized by comprising: a decomposition unit which decomposes food waste; a collection unit which stores the decomposed food waste; and a transfer unit which transfers the food waste decomposed in the decomposition unit to the collection unit, wherein the decomposition unit includes a decomposition tank providing a space in which the food waste is decomposed, a stirrer rotationally installed in the decomposition tank and stirring the food waste, and a stirring motor providing rotational force to the stirrer, and the stirrer includes a stirring shaft connected to a rotary shaft of the stirring motor, a stirring screw coupled to the stirring shaft to move the food waste by rotation of the stirring shaft, and a blade coupled to the stirring shaft to move along one side surface of the decomposition tank in an area adjacent to one side surface of the decomposition tank by rotation of the stirring shaft.

The utility model discloses a wireless air duct device and a garbage disposer, the wireless air duct device comprises an air duct main body, a top cover plate, a centrifugal wind wheel, a motor, a seat plate, a wireless power supply receiving module and a wireless power supply transmitting module, the air duct main body comprises an air inlet cavity, an air inlet interface, an air guide cavity, an air exhaust cavity, a surrounding plate and a side cover plate, and the surrounding plate is arranged at the communication position of the air exhaust cavity and the air guide cavity; the air inlet cavity, the air inlet interface, the air guide cavity, the air exhaust cavity and the coaming are integrally formed; the top cover plate is buckled with the top of the air inlet cavity, the motor is fixed on the seat plate, and the centrifugal wind wheel is fixed with a motor shaft; the seat plate serves as a closed coaming of the rear volute plate; the side cover plate seals the side opening of the exhaust cavity, and the wireless power receiving module is arranged in a sealed space formed by the side cover plate and the seat plate. A wireless power receiving module and a wireless power transmitting module are arranged, so that the garbage processor is convenient to disassemble and assemble; during use or cleaning, the wireless power supply receiving module is waterproof and pollution-proof, is convenient to clean, and keeps the power supply performance; rapid electric connection is realized and the service life is long.

The utility model discloses a waste solar panel pyrolysis recovery system, which relates to the technical field of battery panel recovery, and comprises a pyrolysis furnace, a water-cooling spiral, a gravity separator, a slag bin, a pretreatment device, a condenser, a secondary combustion chamber, a heat exchanger, a tail gas purifier, an induced draft fan, a chimney and a liquid storage tank, the pretreatment device is connected to the input end of the pyrolyzing furnace, the input end of the condenser is connected with the output end of the pyrolyzing furnace, the non-condensable gas output end of the condenser is connected with the input end of the secondary combustion chamber, the condenser, the secondary combustion chamber, the heat exchanger, the tail gas purifier, the induced draft fan and the chimney are sequentially connected, and the condensate output end of the condenser is connected with the liquid storage tank. According to the waste solar panel pyrolysis recovery system provided by the utility model, the waste solar panel can be effectively recovered and treated, the resource recovery utilization rate can be improved, the adverse effect on the environment can be reduced, and a powerful guarantee is provided for green and efficient recovery and utilization of the waste solar panel.

A solar panel disassembling apparatus includes a supporting plate that supports the bottom of a solar panel so that the top surface thereof is in contact with a glass plate, a moving scraper module that includes a first body, a first elevator, and a blade connected to the first elevator and changing in height with respect to the supporting plate for scraping the stacked film, a moving pressing module that includes a second body, a second elevator, and a pressing unit connected to the second elevator and changing in height with respect to the supporting plate, that is disposed forward in the forward movement direction of the moving scraper module, and that presses and aligns the stacked film using the pressing unit ahead of the moving scraper module, and a bending guide plate disposed over the blade, and rolling and keeping therein the stacked film separated from the blade.

Methods and systems for separating material using a combination of a sieve bed and a gravity separator are included. Material is collected from the waste stream and passes through the screener. The collected larger material is then directed to a first gravity separator having a specific gravity. Plastic and residual metal are recovered.

To provide a method for manufacturing a recycle chip which can smoothly manufacture a recycled chip that has excellent conveyance property and is suitably usable as a raw material of a recycled pellet.SOLUTION: A method for manufacturing a recycle chip includes the steps of: stretching a long resin film in a direction crossing a long direction, in a state in which both ends in a width direction of the resin film are gripped by a clip, and preparing a stretched film; cutting each of both ends including a gripping mark of the clip from the stretched film, and obtaining an end film including the gripping mark; and crushing the end film into a plurality of small pieces having averages of maximum lengths of 1 mm or more and 25 mm or less.SELECTED DRAWING: Figure 1

To provide a reinforcement material that has a sufficient amount of functional groups on the surface and exhibits excellent surface adhesion so as to be able to composite with a resin. In order to solve the above issue, the present disclosure provides a reinforcement material that is a continuous fiber and has a total acidic functional group concentration on the surface of the reinforcement material of 0.4 mmol / g or more and 4.0 mmol / g or less.