14 results about "Electronic waste recycling" patented technology

The invention belongs to the technical field of electronic waste recycling, and particularly relates to a method for preparing a nickel-cobalt-manganese precursor by utilizing straw and lithium ion battery current collector aluminum reduction ternary positive electrode powder. The method comprises the following steps: sequentially discharging, disassembling and crushing the waste lithium ion battery to obtain waste lithium ion battery positive electrode powder; straw is crushed and screened, and straw powder is obtained; the method comprises the following steps: mixing waste lithium ion battery positive electrode powder with straw powder, carrying out thermochemical treatment, recovering filtrate and filter residues from roasted powder by a carbonic acid water leaching method, drying the filtrate to obtain a Li2CO3 product, and carrying out alkaline leaching treatment on the filter residues to obtain a nickel-cobalt-manganese precursor; the lithium ion battery anode current collector aluminum and the straw pyrolysis product are used as the reducing agent, the dosage of the reducing agent needing to be added is greatly reduced, roasting can be completed at the low temperature, the energy consumption in the treatment process is small, and the recycling method is environmentally friendly, economical, efficient, simple in process and suitable for industrial production. The industrial application requirements of the waste lithium ion battery positive electrode material recycling industry are met.

The invention belongs to the technical field of electronic waste recovery processing, and discloses a waste circuit board high-value component intelligent identification method and system, and the method comprises the steps: obtaining an original image, and carrying out the preprocessing, and obtaining a final image; constructing and training a target detection model, and detecting the final image to obtain an initial detection result; obtaining a final detection result based on the final image and the initial detection result in combination with threshold filtering and a non-maximum suppression algorithm; identifying the final detection result by using an OCR (Optical Character Recognition) algorithm to obtain an identification result; constructing a component database, matching the recognition results in combination with a similarity algorithm to obtain a matching result, and obtaining an evaluation result by using a time sequence prediction model and a graph neural network model; and integrating and outputting the detection result, the identification result and the evaluation result. According to the invention, when the waste circuit board is recycled, high-value components in the waste circuit board can be accurately identified and evaluated, and the value of the whole waste circuit board is evaluated.

The invention belongs to the technical field of electronic waste recycling, and particularly discloses a method for tin dissolving and desoldering of a waste circuit board, which comprises the following steps of: carrying out dust removal treatment on the waste circuit board by adopting a high-pressure blower gun; preparing a hydrochloric acid solution for desoldering; putting the waste circuit board into a closed glass reaction kettle, and injecting a hydrochloric acid solution into the closed glass reaction kettle; dissolving and soaking the waste circuit board, and mechanically stirring in the whole process; and respectively taking out the component and the substrate, washing with clear water, drying, and collecting the de-soldering tail liquid. The desoldering tail liquid is subpackaged, and centrifugal separation is carried out after subpackaging; and upper-layer waste liquid is poured out of the separated sealing-off tail liquid, neutralization treatment is conducted, lower-layer solid matter is recycled, and the welding flux is obtained. By the adoption of the tin dissolving and desoldering method for the waste circuit board, rapid separation of ECs and a substrate (PWB) can be achieved, tin-lead solder on the waste circuit board can be removed in an environment-friendly and efficient mode, and convenience is provided for further resource utilization.

The invention discloses an intelligent vehicle path planning method, device and equipment for electronic waste recovery and a storage medium, and relates to the technical field of path planning, and the method comprises the steps: defining each recovery demand as a node demand and a side demand, and constructing a path optimization model based on each preset constraint condition and each demand; and determining a polar coordinate angle between the node required by each node and the target warehouse, sorting each node to obtain a sorting result, and performing path distribution on each node based on the sorting result by using a path optimization model to obtain a to-be-understood result, performing neighborhood search operation on the solution to be processed by using a tabu search algorithm and a simulated annealing algorithm to obtain a candidate solution set; and judging whether the to-be-processed profit of the current candidate solution is greater than the current profit maximum value, if not, determining a new current candidate solution, skipping to the step of judging the to-be-processed profit of the current candidate solution again, and setting the current candidate solution as a target solution so as to plan the vehicle path and improve the path planning efficiency.

The invention discloses an electronic waste precious metal separation and extraction device and an extraction process, and relates to the technical field of electronic waste recovery, the device comprises a rack, the rack is provided with a washing pool, an extraction tank, a water storage tank and an extraction tank, and the washing pool is located in the middle of the rack; the L-shaped supporting plate is movably mounted on the rack and is used for supporting the circuit board; the first guide groove and the second guide groove are matched to limit the two ends of the fixing part of the supporting plate and enable the supporting plate to move according to a preset path and a preset angle, so that the circuit board moves into the washing pool and the welding spots are washed off. The solution in the washing pool is pushed to penetrate through the notch in the fixing part of the supporting plate to be in contact with the back face of the circuit board, impact tin soldering points on the back face of the circuit board and gradually dissolve the tin soldering points, and meanwhile, the solution below the supporting plate is extruded to guide the solution to impact upwards along the slope in the notch of the supporting part to collide with the front face of the circuit board; the tin in the circuit board plug-in element hole is impacted so that the electronic component is separated from the circuit board.

The utility model discloses electronic waste recovery equipment. The electronic waste recovery equipment comprises a recovery box, a crushing roller, a filter plate and a heating hopper, the recycling box is provided with a feeding port and a returning port which are communicated with an inner cavity of the recycling box, and the returning port is formed below the feeding port. The crushing roller is rotationally arranged in the inner cavity and is positioned between the feed port and the return port; the filter plate is arranged in the inner cavity and below the crushing rollers, the filter plate is obliquely arranged, a channel allowing intercepted materials to slide is formed in the filter plate, and the discharging end of the channel is arranged opposite to the material returning opening; the heating hopper is arranged in the inner cavity, located below the filter plate and used for melting meltable materials in the materials so as to separate out recycled materials. According to the scheme, large-size crushed objects output from the material returning opening can be fed into the feeding opening again so that the crushing rollers can be fully crushed, the heating efficiency of the heating hopper can be improved, then the metal object separation efficiency can be improved, the structure is simple, and the cost is low.

The utility model belongs to the technical field of electronic waste recycling, and discloses an electronic film recycling device which comprises a base, a fixing plate is fixedly connected to the rear portion of the top of the base, a driving motor is fixedly connected to the bottom of an inner cavity of the base, and a rotating shaft is fixedly connected to the other end of an output shaft of the driving motor in a sleeved mode. The outer surface of the rotating shaft is fixedly sleeved with a rectangular block, and rotating rods are hinged to the left side and the right side of the top of the rectangular block correspondingly. Through the arrangement of the driving motor, the rotating shaft, the rectangular block, the rotating rods and the positioning plates, when the driving motor operates, the rotating shaft drives the rectangular block to rotate, then the two rotating rods rotate to drive the two positioning plates to move in the opposite directions, and under the cooperation of the fixing plate and the two positioning plates, the two positioning plates can move in the opposite directions. The purpose of centering and positioning the collecting box is achieved, the situation that the shredded electronic film is scattered to the outside due to the fact that the collecting box is not placed in place is avoided, and the secondary collecting process is reduced.

The invention relates to the technical field of electronic waste recycling, and provides recycling and sampling integrated equipment for electronic waste parts. The screening box is mounted on the base through four first supporting columns; the upper surface and the lower surface of the second crushing box are each provided with a discharging pipe, and the discharging pipe on the upper surface of the second crushing box is installed on the lower surface of the screening box; one side of each of the two discharging pipes is provided with a connecting pipe, and one side of each of the two connecting pipes is provided with a sampling mechanism. The output end of a second electric push rod drives a second rotating block to enable a rotating frame to drive a second baffle to move, fragments enter a connecting pipe and fall into a quantitative box, the output end of a first electric push rod drives the quantitative box to move in the connecting pipe, then redundant fragments are scraped off, and a first baffle drives a rotating rod to rotate in the quantitative box, so that the fragments enter the quantitative box. And therefore, the fragments fall into the sample box, and the effect of sampling the fragments with different crushing degrees is achieved.

A carbon dioxide adsorbent material derived from recycled electronic waste and its preparation method are disclosed. The carbon dioxide adsorbent material is prepared using non-metallic powder from electronic waste as raw material. On the one hand, the electronic waste is pretreated to ensure its high-value utilization; on the other hand, the high-performance adsorbent converted from it is directly used to capture carbon dioxide from industrial waste gas, thus treating another environmental pollutant at its source with one type of waste. This not only solves the difficulties in treating the non-metallic components of electronic waste and the resulting heavy pollution, but also provides a low-cost material for carbon dioxide emission reduction, while reducing the production cost of the adsorbent. It achieves a balance between environmental and economic benefits and is a typical practice of the circular economy concept.

The present invention belongs to the technical field of electronic waste recycling and utilization, and discloses a lithium battery core pack disassembly device and method. The lithium battery core pack disassembly device includes a clamping mechanism for clamping the core pack, a cutting mechanism for severing the electrode sheets, a pressing mechanism for compressing one end of the severed electrode sheet, a rewinding mechanism for unfolding and compressing the other end of the electrode sheet, and a separation mechanism for adsorbing and separating the unfolded electrode sheet. The present invention utilizes the interaction of the clamping mechanism, cutting mechanism, pressing mechanism, rewinding mechanism, and separation mechanism to achieve automated and individual disassembly of the lithium battery core pack.

The present application relates to gold recovery technical field, specifically to a kind of for recycling gold polythionic acid carbon-based aerogel composite material, preparation method and application, the polythionic acid carbon-based aerogel composite material is obtained by loading polythionic acid on carbon aerogel template;The mass ratio of polythionic acid and carbon aerogel template is 1~4:1~2;The carbon aerogel template is obtained by pyrolysis carbonization after delignification of Basham, and the pyrolysis temperature is 400℃~1000℃.The composite material obtained in the application has the selective coordination reduction capacity of polythionic acid and the high specific surface area, excellent mechanical properties and photothermal effect of carbon skeleton, can efficiently and selectively adsorb and reduce gold ions to gold element from complex gold-containing waste liquid, solve the problems such as poor selectivity and difficult recovery of traditional adsorbent, and has broad prospects in the field of electronic waste recycling.

The application discloses a method for photocatalytically dissolving copper in electronic waste, and belongs to the technical field of photocatalysis and electronic waste recycling. The method comprises the following steps: uniformly mixing a transition metal porphyrin polymer, an aqueous solution of ammonium salt and hydrogen peroxide to obtain a mixed solution; the transition metal porphyrin polymer is obtained by using N'N-dimethylformamide as a solvent, adding 5, 10, 15, 20-tetra (4-carboxyphenyl) porphyrin, a transition metal source and glacial acetic acid, and performing hydrothermal reaction; and the copper-containing electronic waste is added into the mixed solution, and the copper in the electronic waste is dissolved under the action of visible light at 20 DEG C to 40 DEG C and under normal pressure. The application realizes high selectivity and high efficiency of the copper in the electronic waste in the aqueous phase system with the aid of visible light, and lays a foundation for the technical application of photocatalytic recovery of the copper in the electronic waste.

The invention relates to the technical field of electronic component recovery equipment, in particular to electronic waste recovery treatment equipment which comprises a shell, a guide mechanism, two crushing plates and two crushing belts. The guide mechanism defines a first blanking area and a second blanking area between the two crushing belts, and the crushing plate can move relative to the crushing belts. According to the electronic waste recycling treatment equipment, under the action of the guide mechanism, part of waste with the size smaller than or equal to the first preset value can enter the first discharging area, other waste falls onto the crushing belt from the second discharging area, the waste is torn under the action of relative movement of the crushing plate and the crushing belt, and the waste is recycled. The garbage is pre-crushed, then the garbage and the garbage with the size smaller than or equal to the first preset value are synchronously crushed, the overall crushing efficiency is improved, and the crushing effect of the garbage with the size larger than the first preset value can be improved.

The invention belongs to the technical field of electronic waste recycling, and relates to a composite material based on waste circuit board resin and a preparation method thereof. The preparation method comprises the following steps: physically crushing a waste circuit board, removing residual metal impurities in resin powder by using nitric acid to prepare a filler, uniformly mixing the filler, thermoplastic resin, a functional aid, a modified filler and organic amine in a weight ratio of (80-100): (40-50): (5-7): (8-10): (0.5-1), extruding, granulating, and carrying out hot-pressing treatment to prepare the composite material based on the waste circuit board resin. The prepared composite material is excellent in mechanical property and ultraviolet aging resistance, waste is turned into wealth, a feasible way is provided for recycling of waste circuit boards, and the industrial application prospect is wide.