387results about "Waste processing" patented technology

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 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.

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.

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.

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.

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 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 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.

Provided are a gasification furnace operating method, a gasification furnace, a two-stage gasification apparatus, a gasification method for an organic raw material, and a two-stage gasification method for organic waste that make it possible to stably operate a gasification furnace over a long period of time. The present invention provides a gasification furnace operating method including, in a gasification furnace into which an organic raw material is introduced and that produces gas and slag, directly or indirectly introducing an alkali metal-containing compound into the gasification furnace to reduce the viscosity of the slag.

The invention discloses a recycling system and method for a photovoltaic module, and belongs to the technical field of harmless and resource treatment of retired photovoltaic modules. The recovery processing system of the photovoltaic module comprises a pyrolyzing furnace, a wet steam oxidation furnace and a cooling furnace, a discharge port of the pyrolyzing furnace is connected with a feed port of the wet steam oxidation furnace, and a discharge port of the wet steam oxidation furnace is connected with a feed port of the cooling furnace; molten salt heating pipes are arranged in the pyrolyzing furnace in the circumferential direction. The invention further provides a photovoltaic module recycling method which comprises the following steps: conveying the photovoltaic module into the pyrolyzing furnace, and staying at 450-550 DEG C for 20-40 minutes; then the photovoltaic module enters a wet steam oxidation furnace, the temperature of water vapor is 200-250 DEG C, and the photovoltaic module stays for 20-40 min; and then the photovoltaic module enters the cooling furnace to be cooled and output. The system provided by the invention can realize separation of a large complete glass plate and a high-quality silicon battery piece.

This invention relates to a resin-based nano-iron oxide-enhanced microbial preparation, a method for preparing the same, and its applications. In this invention, after mixing resin-based nano-iron oxide, the microbial preparation, and food waste, at room temperature, the resin-based nano-iron oxide enhances the decomposition of food waste by the microbial preparation through multiple actions, including promoting microbial growth, inducing high activity of functional proteases, and accelerating electron transport processes. The alternating aerobic and anaerobic environments allow the microbial preparation to exert its full effect, resulting in high biochemical activity of metabolites. A reaction under room temperature conditions of 3 to 5 hours can achieve a food waste reduction rate of 80% to 99%. This invention is technically simple, consumes little energy, does not cause secondary pollution, and effectively achieves the goals of food waste reduction, resource recovery, and detoxification.

A crusher (1) comprising: a ball mill (2) having a steel drum (3) containing a plurality of steel balls (4) therein, configured to obtain powder having a particle size of 25 μm to 500 μm, preferably 200 μm to 300 μm, i.e., the main size of each powder particle being 25 μm to 500 μm, preferably 200 μm to 300 μm; and a refrigeration circuit (6) for refrigerating at least a portion of the steel drum (3), comprising a refrigeration unit (5) suitable for supplying a carrier fluid at a temperature of -150 degrees or less, a sleeve (7) for the inflow of the carrier fluid supplied by the refrigeration unit (5), and a discharge sleeve (9) for complete circulation in the refrigeration circuit (6) and discharge of the carrier fluid at the end of transport to the suction duct (10) of the refrigeration unit (5).

The utility model discloses a complete device for an industrial waste residue purification process, belongs to the technical field of environmental protection, and particularly relates to a purification process and device for industrial solid-phase waste residues, in particular to a complete device for purifying industrial solid-phase waste residues by utilizing the structural characteristic that each filter disc of a tilting-pan vacuum filter is independently turned over to blow back and discharge materials. According to the process steps, filter partitions and matched equipment are optimized to form a single filter purification process complete device, and the purification process flows of filtration separation, multiple washing, re-pulping reaction, re-filtration separation, clean water washing and drying and washing water neutralization and circulation without discharge are completed, so that the purposes of reducing investment, reducing production and operation cost and improving production efficiency are achieved. And renewable resource utilization and environmental protection project popularization are facilitated.

The present embodiment relates to a valuable metal recovery composition comprising at least one or more unit valuable metal recovery compositions, the unit valuable metal recovery composition comprising: a core comprising a valuable metal; and a shell part disposed in at least a part of the core part, the shell part containing a lithium-containing oxide, the valuable metal recovery composition being characterized in that the proportion of units of the valuable metal recovery composition having an average particle diameter (D50) of more than 4000 [mu] m is 70% or less of the total valuable metal recovery composition.

A method and system for separating materials using a combination of screen beds and gravity separators is included. Materials are collected from the waste stream and pass through a screen. The collected larger materials are then directed to a first gravity separator with a specific gravity. Plastics are recovered and residual metals are recovered.

The invention discloses a waste assembly recovery method, and relates to the technical field of photovoltaic assembly resource recovery, the recovery method comprises the following steps: S1, disassembling a waste assembly to obtain a waste photovoltaic panel with glass layers on both sides; s2, an exhaust channel is formed in a front or back glass layer of the waste photovoltaic panel; s3, providing a high-temperature furnace which comprises a furnace body for limiting a furnace chamber; the heating device is arranged in the furnace chamber and comprises a top heater at the top and side heaters symmetrically arranged on the two sides below the top heater; the bearing device is arranged below the heating device and is spaced from the bottom of the furnace body; the air inlet is formed in the axial central axis of the top of the furnace body; the exhaust ports are symmetrically formed in the axial central axes of the two sides of the upper part of the furnace body; s4, the waste photovoltaic panel is placed on the bearing device, and the upper end face of the waste photovoltaic panel is flush with or lower than the bottom of the exhaust port; s5, starting a heating device to pyrolyze organic matters on the waste photovoltaic panel, and starting an air exhaust system to discharge pyrolyzed gas out of the furnace; and S6, after pyrolysis is completed, the treated waste photovoltaic panel is obtained.

The present invention relates to a chip made from a composite material containing carbon fibers in a cured adhesive, the chip having a substantially constant thickness defined between two parallel, opposing faces of the chip, the surface of each face including carbon fibers that are at least partially not contained in the cured adhesive.

A method of forming an ionomer blend during a process of recycling waste solid ionomer material, the method comprising: heating the waste solid ionomer material in a solvent to disperse the waste solid ionomer material; and mixing ionomer from the waste solid ionomer material with a second ionomer material to co-mingle ionomer from the waste solid ionomer material with ionomer from the second ionomer material forming a co-mingled ionomer blend during the process of recycling the waste solid ionomer material.

A solar panel recycling mechanism, which uses a material picking unit to pick up waste solar panels for a frame unloading unit to receive waste solar panels, and uses a robot arm to dismantle the frame of each waste solar panel for a feeding channel to receive each waste solar panel after the frame is removed, so that an inner crushing zone can press the glass panel on each waste solar panel and a discharge port can send each waste solar panel with the removed glass panel to a placement area outside for stacking. A operation unit of a control area controls a power supply unit to provide the material picking unit, frame unloading unit, glass removal unit and placement area with the required power, and also controls the operation of each unit to process waste solar panels, so as to achieve the purpose of quickly dismantling waste solar panels.

The invention provides a recovery device and a recovery method for waste photovoltaic panels. The recovery device comprises separation equipment, screening equipment for screening separated materials and recovery equipment for recovering a solvent, the separation equipment comprises a pressure maintaining unit used for loading the waste photovoltaic panels and a steam generating unit used for conveying steam to the pressure maintaining unit. The recovery equipment comprises a water storage bin provided with a heating system and a condensation system connected with the water storage bin. According to the method, the waste photovoltaic panel is treated based on the organic solvent steam technology, the organic solvent has swelling and dissolving effects on EVA, separation of glass and EVA is achieved through organic solvent steam, the granularity of the separated glass is small, other parts maintain the original size, and separation of the glass and the EVA can be achieved through screening; the steam generation unit and the pressure maintaining unit are independently arranged, so that pollution of the organic solvent is avoided, the steam generation unit is not influenced in the separation process, the steam generation unit does not need to be cooled, the organic solvent is conveniently recycled, and the recycling cost is reduced.