25 results about "Electronic waste" patented technology

The utility model discloses a kind of LED instrument fusion TFT instrument structure, it is related to instrument structure technical field, including instrument shell, the front end surface of the instrument shell is provided with digital middle plate, the surface of the digital middle plate is provided with static indication mark, the middle position of the digital middle plate is equipped with TFT screen card slot, the middle position of the TFT screen card slot is installed with TFT high-resolution dynamic screen.Reduce electronic waste: modular design makes instrument assembly can be independently replaced or upgraded (such as only replacing TFT screen instead of whole equipment), substantially reduce the whole machine scrappage rate caused by local fault, prolong product life cycle, reduce electronic garbage generation.Resource efficient use: standardized interface and split structure simplify production process, reduce material redundancy.For example, LED and TFT module can be produced separately in batches, reduce energy consumption and raw material waste, in line with the concept of circular economy.

The present application relates to the technical field of sustainable product environmental performance monitoring, and discloses a multi-category product whole life cycle environmental monitoring self-adaptive loading fixing device, which is composed of a split detachable main frame, a multi-modal self-adaptive loading fixing module, a mechanical loading density monitoring module and a mechanical vibration feedback module. The main frame adopts a split plug-in structure, and the loading module includes four types of adaptive loading groups, which can be flexibly assembled to adapt to multi-category products relying on the opposite sliding structure, the height adjusting structure and the locking structure, without the need for customized tooling. The device is designed with pure mechanical and non-electricity, is suitable for non-electricity scenes and does not produce electronic waste. The mechanical vibration feedback module is carried to realize real-time early warning of excessive transportation vibration and greatly reduce product loss. The whole device is free of fragile electronic components, effectively solves the problems of poor adaptability of traditional devices, difficulty in collecting environmental performance data, lagging stability feedback and difficulty in maintenance, and meets the needs of sustainable product evaluation and green logistics.

This invention provides a thiourea-tertiary amine bifunctional chitosan microsphere and its preparation method, belonging to the field of adsorption material technology. Through a stepwise functionalization and sequential crosslinking method, thiourea groups are first introduced onto the chitosan microspheres, followed by the introduction of tertiary amine groups and secondary crosslinking, successfully preparing chitosan microspheres possessing both thiourea and tertiary amine bifunctional groups. The thiourea and tertiary amine groups in the microspheres of this invention exhibit a synergistic adsorption effect on noble metal chloride anions, significantly improving the selective adsorption capacity and adsorption rate for noble metals such as palladium, platinum, and rhodium. Simultaneously, the dense three-dimensional network structure constructed through stepwise crosslinking greatly enhances the chemical stability and mechanical strength of the microspheres under strongly acidic environments, extending their service life. This preparation method is simple, mild, and environmentally friendly. The prepared adsorbent is particularly suitable for the efficient and selective recovery of noble metals from complex acidic wastewater or electronic waste leachates.

This utility model discloses a compression device for waste processing, relating to the technical field of waste processing equipment. The device includes a body with a hydraulic plate inside. The lower end of the inner wall of the body is trapezoidal. A rapid demolding unit for demolding electronic waste is installed inside the body. A support plate in the rapid demolding unit is slidably connected inside a groove, supporting the electronic waste. A fixing clip is located on one side of the support plate, securing it when it stops moving. By incorporating the rapid demolding unit and utilizing the sliding of the support plate and the cooperation of the fixing clip, this device can quickly and conveniently demold electronic waste, improving demolding efficiency. The trapezoidal design of the lower end of the inner wall facilitates smooth demolding of the formed waste, reducing damage and ensuring waste quality, which is beneficial for subsequent recycling.

The application discloses a kind of self-adapting flameless combustion multi-pollutant collaborative control methods for electronic waste pyrometallurgical recovery two combustion chambers, it is related to the technical field of combustion control and pollutant generation in situ inhibition of electronic waste pyrometallurgical recovery.The combustible component flue gas is introduced into the front section of two combustion chambers, so that the combustible flue gas environment is formed in the front section of two combustion chambers;The auxiliary fuel is introduced into the front section of two combustion chambers in the form of axial injection, and the flameless distributed combustion main reaction zone is formed in the front section of two combustion chambers;In the rear end of two combustion chambers, the combustion-supporting medium is introduced in a staged oxygen-supplying manner, and the oxidation reaction of carbon monoxide and intermediate combustible components in the combustion products is completed through a high-temperature oxidation environment;Based on the temperature field distribution, oxygen concentration distribution and combustion incomplete component characteristic parameters in two combustion chambers, the fuel injection parameters and combustion-supporting medium staged supply parameters are adjusted, so that the overall combustion state in two combustion chambers is stably maintained in the flameless distributed combustion state.The application can improve the overall pollutant control stability and operation reliability of the system.

The utility model relates to a kind of long furnace tube reactor's support fixing structure, reactor and electronic waste pyrolysis processing system belong to waste resource recycling technical field, solve the problem that long furnace tube reactor is prone to axial and radial permanent deformation in prior art.A kind of long furnace tube reactor's support fixing structure, including the support frame of long furnace tube reactor's furnace tube outside being set, the furnace tube one end is fixedly connected with support frame, and the other end is axially slidable free end;The support fixing structure further includes at least one group of sliding hanging connection unit being arranged in furnace tube middle part.Avoids the deformation of furnace tube under high temperature working condition.

The present disclosure relates to methods for recovering metals from used lithium ion batteries. The methods employ free-standing or unhoused metal-extraction membranes, where at least a portion of the membranes are submerged in a feed solution containing metals of interest. The methods reduce viscous transport between feed and the strip solutions, as compared to conventional orthogonally-flowing feed and strip solution extraction methods.

This invention discloses a batch distillation purification method for NMP electronic waste liquid, comprising: after the NMP electronic waste liquid is fed into a batch distillation column, obtaining the initial process parameters of the batch distillation column; inputting the initial process parameters into a constructed batch distillation column operating model to obtain target operating parameters; and purifying the NMP electronic waste liquid according to the target operating parameters to obtain NMP product. Implementing this invention enables the automatic purification of NMP electronic waste liquid with different NMP contents using a batch distillation process, resulting in low cost, improved NMP product recovery rate and purity, and suitability for the lithium battery industry where NMP-containing electronic waste liquid is low and its composition is unstable.

This utility model belongs to the technical field of electronic waste treatment, and specifically relates to a waste circuit board resource recovery system. The waste circuit board resource recovery system includes: a crushing unit for crushing waste circuit boards; a sorting unit using a first hydraulic shaking table to hydraulically separate the crushed circuit board fragments to obtain precious metals and sorting tailings; a tailings treatment unit for solid-liquid separation of the sorting tailings to obtain bottom sludge; and a bottom sludge treatment unit including a smoldering furnace and a second hydraulic shaking table. The smoldering furnace is used to smolder the collected bottom sludge to remove some organic matter and increase the content of precious metals in the bottom sludge; the second hydraulic shaking table is used to sort the smoldering bottom sludge to obtain precious metals and smoldering tailings. This utility model, through smoldering treatment of the bottom sludge, can significantly increase the content of precious metals in the bottom sludge, facilitating further separation of the precious metals from the bottom sludge.

The present invention discloses methods for the selective recovery of precious metals from electronic waste (e-waste). An environmentally friendly oxidizing agent is developed for the selective oxidation and separation of copper from printed circuit board (PCB) metal powder. Additionally, selective recovery of gold and silver is achieved using fluxing agents. Following selective leaching, copper is recovered from the leach solution through cementation with more active metal species. Impurities, such as aluminum (Al) and iron (Fe), are subsequently removed via pH precipitation. The remaining leached elements are further separated using crystallization or additional pH precipitation processes.

The application discloses a kind of degradable flexible conductive mycelium material method, belong to new material technical field.The application utilizes deep fermentation to prepare mycelium nanoparticle composite fermentation liquor, and is combined with solid fermentation, and the resistance value of the conductive mycelium material prepared is 30-40 Ω / cm, with excellent conductive performance, and after repeatedly stretching 100 times, resistance value fluctuation is about 10%, and the stability of guide point is excellent;In addition, degradation rate reaches about 70%, and can be recycled, compared with traditional conductive material, it will not produce a large number of electronic garbage, and reduce the dependence on earth resources, will not cause harm to the environment.Meanwhile, the breaking strength of the flexible conductive mycelium material prepared by the application reaches more than 25MPa, and the contact angle is >90°.Therefore, the conductive mycelium material prepared by the application is similar to leather in appearance, and the conductivity and flexibility are good, which can promote the development of intelligent textiles.

The application relates to the technical field of noble metal ion recovery, and discloses a method for recovering noble metals and application thereof. The method utilizes mechanical energy provided by dispersion vibration waves to trigger frictional charge transfer at a liquid-solid interface, so as to promote enrichment of electrons on a catalyst surface of a general formula of M n+ 1X n T x , and then in-situ and high-efficiency reduction of noble metal ions in a solution. The method not only has excellent reduction efficiency, but also exhibits good selectivity to target metal ions by means of specific interface charge transfer and adsorption mechanisms, and provides a novel technical thought for selectively recovering gold from complex electronic waste leaching solution.

This invention discloses a method for the full lifecycle resource recycling management of waste communication electronic products, belonging to the field of electronic waste resource recycling technology. It includes four key steps: First, in the information acquisition stage, quantum sensing and quantum machine learning are introduced to comprehensively collect microscopic and macroscopic information about the products. Second, during the sorting and pre-processing stage, quantum dot labeling and Raman spectroscopy imaging technology, combined with intelligent robots and deep learning algorithms, are used to achieve efficient and precise disassembly and sorting. Third, resource recycling employs a new quantum catalysis and bio-coupling technology to reprocess recycled resources at the nanoscale, enhancing their utilization value. Fourth, data recording constructs a quantum-encrypted blockchain system, combined with quantum cloud computing to process data, ensuring data security and traceability. This invention offers significant advantages: accurate information acquisition for evaluating product value; improved sorting and pre-processing for enhanced subsequent recycling efficiency; novel recycling technology to reduce pollution; secure and traceable data management; and optimized risk assessment and supply chain collaboration to achieve sustainable resource utilization.

This application relates to a waste electronic metal pyrolysis recycling device, belonging to the technical field of electronic waste metal pyrolysis recycling. It includes a pyrolysis furnace, with a storage bin above the furnace. A first connecting pipe is fixedly connected to the bottom of the storage bin, and a second connecting pipe is fixedly connected to the bottom of the first connecting pipe. This application, by incorporating components such as an auger, a scale, and a solenoid valve, allows the reducing agent in the storage bin to fall into the second connecting pipe through the first connecting pipe during the pyrolysis of waste electronic materials. Starting a first motor drives a rotating rod and an auger to rotate, allowing the reducing agent to enter a measuring cylinder. The measuring cylinder and scale facilitate observation of the reducing agent level, thus allowing for determination of the dosage of reducing agent based on the amount of waste electronic materials. Opening the solenoid valve allows the third connecting pipe to input the reducing agent into the pyrolysis furnace, where it mixes with the waste electronic materials. This device enables the quantitative addition of reducing agent during the pyrolysis of waste electronic materials, significantly improving the metal recovery rate.

This utility model discloses a modular thermostat for a dishwasher heater, comprising: a housing, a fixing clip, an automatic thermostat, and a manual thermostat; the housing has two accommodating cavities for housing the automatic and manual thermostats respectively; the fixing clip is fixed to the housing and has two snap-fit ​​holes coaxial with the two accommodating cavities respectively; the automatic and manual thermostats are snap-fitted into the two snap-fit ​​holes respectively, and are set as two independent, standard-compliant modular components, with dimensions and interfaces matching the snap-fit ​​holes; the manual thermostat is equipped with a reset button. In this way, the expensive integrated structure is broken down into two standardized independent modules, reducing costs; the manual thermostat replaces the function of a fuse and can be manually reset, avoiding frequent replacement costs due to fuse blowouts, reducing electronic waste, and conforming to the concept of green environmental protection; the snap-fit ​​fixing method lowers the maintenance threshold and time cost.

The present application relates to the technical field of electronic waste resource utilization, and discloses a method for extracting copper from waste circuit board by microwave corona coupling thermal shock and green solvent, which comprises the following steps: mixing waste printed circuit board powder and silicon carbide particles, pyrolyzing under inert atmosphere, using large particle silicon carbide to initiate deep pyrolysis of brominated resin in the microwave field, then without natural cooling, directly putting high-temperature materials into 0-5 DEG C medium for in-situ thermal shock quenching, using thermal stress mismatch to induce a large number of micro cracks in the material, after screening and recycling silicon carbide, using deep eutectic solvent (DES) for efficient leaching of the residue, finally, purifying cathode copper by electro-deposition, in-situ regeneration of deep eutectic solvent and high-value utilization of non-metallic residue. The present application realizes high copper leaching rate, 100% solvent recycling and zero solid waste discharge.

This invention discloses a carbon-supported catalyst for recovering transition metal alloys, its preparation method, and its application, belonging to the technical field of waste lithium-ion battery recycling. The invention employs a deep eutectic solvent wet recovery process, successfully achieving the stepwise extraction of nickel and cobalt from waste lithium-ion battery powder using a series method. Based on this, the recovered transition metals are directly converted into an oxygen evolution reaction catalyst via electrodeposition, eliminating the need for intermediate purification steps. This catalyst exhibits excellent comprehensive electrochemical performance. The catalyst provided by this invention offers a new approach for the recycling and reuse of waste lithium-ion batteries in the field of water electrolysis, laying a solid experimental foundation for the reintroduction of electronic waste into large-scale energy storage applications, and possesses significant scientific value and application prospects.

The utility model relates to a kind of long furnace tube reactor drive shaft, reactor and electronic garbage pyrolysis processing system, belong to waste resource recycling technical field, solve the problem of poor high-temperature resistance of the internal drive shaft of long furnace tube reactor in prior art.A kind of long furnace tube reactor drive shaft, the drive shaft is inner and outer double tube structure, including inner tube and outer tube, more than 1 support ring is arranged between the inner tube and outer tube along the axial direction;The inner tube is circulating cooling medium passage, and the gap between the inner tube and outer tube is filled with heat insulation material.The stable operation of long furnace tube reactor under high-temperature working condition is realized.

This invention discloses an active hydrogen radical generator for targeted reduction of nickel ions in electronic wastewater, relating to the field of wastewater treatment technology. It includes a main body with a rear inspection cover, a dielectric barrier discharge unit, a gas-liquid mass transfer unit, a wastewater supply unit, and an electrical control cabinet located within the main body. A sandwich-type DBD structure is formed by an inner layer of mesh ceramic, an outer layer of mesh ceramic, and a porous polyimide film. The pore sizes of these three layers are uniform and correspond one-to-one, enabling the formation of stable and uniform low-temperature plasma within micron-level micropores. This eliminates the generation of large electric arcs, significantly increasing the generation and distribution uniformity of active hydrogen radicals, achieving targeted and efficient reduction of nickel ions. Simultaneously, relying on the micro-hollow cathode effect, it enhances electron ionization efficiency, further improving the reduction reaction rate and the purity of elemental nickel.

The application discloses a method for recycling valuable metals in electronic waste, and relates to the technical field of lithium ion batteries, and the method comprises the following steps: mixing electronic waste powder, boron nitride, a grinding aid and a first solvent in a certain proportion, applying mechanical stress to perform grinding treatment, and obtaining an activated precursor; mixing the activated precursor with a second solvent in a certain proportion, and performing stirring leaching treatment to obtain a leaching solution containing metals; and the grinding aid comprises at least one of an ammonium salt and an aqueous metal halide. The recycling method can achieve a metal recovery rate of more than 99% for lithium, cobalt, nickel and manganese.

DEPCT68 What is revealed here are the methods for extracting metals from electronic waste or residues from leaching. Such items are returned, including electronic waste or leaching residues containing minerals. Copper and one or more lithium compounds, methods which include: leaching waste. Electronics or residual leaching with a leaching solution which includes: Ammonium sulfate, in the presence of an oxidizing agent, provides a leachate containing Cu ions. And the Li ions and the remaining solid residue; and the separation of the leachate and the remaining solid residue;

The invention relates to methods for recovering precious metals from feedstocks including solid feedstocks including urban feedstocks, such as electronic waste, and leachates thereof, and / or from liquid feedstocks. In certain examples, methods for recovery of target metals, such as gold, using a support material are provided, as are target metal-laden materials so produced.

This invention relates to a method for preparing copper-based friction materials from copper-containing electronic waste, belonging to the field of electronic waste resource utilization technology. The invention involves uniformly mixing copper-containing electronic waste with copper-containing solid waste to obtain a mixture. This mixture is added to a smelting pool and heated to melt. Oxygen-enriched gas is introduced for oxidative smelting to obtain an oxidized melt. A reducing agent is added to the oxidized melt, and a protective gas is introduced for stirring and heat preservation for reduction smelting. Copper-rich alloy and slag are separated by sedimentation. The copper-rich alloy is powdered to obtain copper alloy powder. The copper alloy powder and friction components are uniformly mixed and pressed into a billet. The billet is sintered to obtain the copper-based friction material. The coefficient of friction of the copper-based friction material is 0.25~0.60, and the wear rate is ≤2.5×10⁻⁶. ‑ 7 cm 3 / J, with a hardness of 40~80HB. This invention achieves the synergistic treatment of copper-containing electronic waste and copper-containing solid waste through high-temperature smelting, efficiently recovering valuable metals, and directly preparing copper-based friction materials from the copper-rich alloy produced by smelting.

The utility model provides a kind of electronic waste water circulation filtering device, belong to waste water treatment and recycling field, including shell, the inside of shell is provided with circulation filtering mechanism.The utility model is through being provided with circulation filtering mechanism, the multistage stratified filtration and circulation purification of electronic waste water are realized, different particle size impurities can be stratified interception, and filtering precision is high;Circulation structure can realize waste water multiple circulation filtration, cooperate adsorption component to remove harmful substance, and purification is thorough, and filtering component is conveniently disassembled, is convenient for maintenance, by setting adsorption assembly, the efficient uniform adsorption of heavy metal in waste water is realized, waste water can be guided to flow uniformly, waste water is fully contacted with adsorption component by stirring, eliminate adsorption dead angle, strongly adsorb heavy metal ions, improve waste water purification quality, and guarantee water quality to reach standard.

This invention relates to the field of semiconductor technology, specifically to a hot-swappable and repairable modular SiP packaging system and method. It includes a package housing, two or more independent functional units; each functional unit is powered through an independent power supply domain; each functional unit has a first micro-spring pin array interface, and the package substrate has a second micro-spring pin array interface; one of the functional units is an intelligent monitoring and control unit that monitors the operating status of each independent power supply domain and functional unit, and cuts off the power supply domain to the faulty functional unit when a fault is detected. Compared with existing technologies, this invention can reduce maintenance costs by more than 80% and significantly reduce electronic waste. Combined with hot-swappable capability, it enables uninterrupted system operation or extremely short-time recovery, and the system availability is expected to increase to over 99.9%.