1627 results about "Material recycling" patented technology

One aspect is a method for producing a first intermediate product. A feedstock is provided that comprises a first polyester. The first polyester is contacted with a further organic compound in a volume section V3 to obtain a further initial mixture. A weight average molar mass of the first polyester is reduced in the volume section V3 to obtain a first intermediate mixture. The first intermediate mixture comprises a first intermediate product and the further organic compound. First particulated material is added to the first intermediate mixture in a volume section V4. A filtering means is pre-coated with the first particulated material. At least one impurity is at least partially removed from the first intermediate mixture using the filtering means. The first particulated material has a median pore diameter in the range of 5 mm to 20 mm.

A system and method are provided for sorting and recovery of recyclable materials, and in particular, sorting and recovery of recyclable materials from mixed waste comprising municipal solid waste in a materials recovery facility. A fluffer can be used to re-size and liberate the incoming materials to a suitable size for further processing in size screen equipment and subsequent downstream separation. The fluffer can re-size the material to a size of approximately 20 inches or larger, plus / minus a few inches, whereby reducing the material to a smaller size would impact the splits in subsequent downstream equipment.

The invention relates to the technical field of material management, and discloses an infrastructure material cyclic application management and control system, which comprises the following modules: an intelligent material identification and real-time data acquisition module, which is used for carrying out automatic identification, classification and real-time data acquisition on infrastructure materials based on various sensor technologies (visual identification, RFID, laser scanning and NFC) and a deep learning algorithm, a digital material file is generated, and dynamic tracking and accurate positioning of materials are achieved; and the block chain-based full life cycle management module is used for carrying out data management and encrypted storage on the full life cycle (from purchasing, transportation, storage, use, maintenance, cyclic utilization to scrapping treatment) of the materials. Through close combination of a multi-mode sensor technology (visual identification, RFID, laser scanning and NFC) and a deep learning algorithm, all-directional and multi-dimensional identification and real-time data acquisition can be performed on capital construction materials in a complex and changeable environment.

The invention provides a preparation method for regenerating waste lithium iron phosphate into sodium ferric pyrophosphate, and belongs to the technical field of battery material production.The recovery process comprises the steps that a high-grade oxide serves as an oxidizing agent, a waste lithium iron phosphate positive electrode material and a current collector are stripped under the acid or strong alkaline condition, and lithium iron phosphate is oxidized; recovering to obtain iron phosphate containing impurities and a solution containing lithium ions; in the regeneration process, recycling slag obtained in the recycling process is uniformly mixed with a sodium source and a phosphorus source, sintering regeneration is performed to prepare ferric sodium pyrophosphate, conductive carbon in waste lithium iron phosphate is used as a reducing agent, and a high-performance ferric sodium pyrophosphate positive electrode material is obtained without an additional reducing agent; recycled slag obtained in the recycling process mainly comprises high-purity iron phosphate, and the content of impurities can be controlled to be 0.1% or below by controlling the solid-to-liquid ratio, the temperature and the reaction time in the recycling process.

The invention relates to the technical field of pipeline solid waste material treatment, in particular to a pipeline solid waste grading crusher and a material recycling method thereof.The pipeline solid waste grading crusher comprises an outer shell with the bottom face provided with a supporting base, a first feeding frame and a second feeding frame, and the first feeding frame and the second feeding frame are sequentially installed above the outer shell from front to back; and a first-stage crushing assembly and a second-stage crushing assembly are sequentially installed in the outer shell from top to bottom, a moving ring is connected to the interior of the left side of a second feeding frame through a connecting control mechanism, a cross frame body is installed in the moving ring, and cutter assemblies used for preliminary slitting are symmetrically fixed to the right side face of the cross frame body. According to the pipeline solid waste grading crusher and the material recycling method thereof, aged or damaged hard plastic pipelines can be conveniently and preliminarily cleaned, and the situation that the crushing efficiency and quality are affected by impurities such as sludge is avoided, so that the crushing and recycling efficiency and quality of the plastic pipelines can be improved, and plastic particles obtained after crushing are conveniently recycled and reused in the later period.

The invention provides a method for recovering a lithium iron phosphate material from a waste battery, and relates to the technical field of battery material recovery. The method comprises the following steps: pre-treating the waste battery; treating a positive plate; and material recovery. Wherein the positive plate treatment specifically comprises the step of soaking the positive plate by adopting a first soaking agent. And crushing the positive plate soaked in the first soaking agent. Soaking the crushed positive plate in a second soaking agent, and filtering to obtain a first filter residue taking the positive active material as a main component; and drying, grinding and screening the first filter residue to remove impurities so as to obtain the lithium iron phosphate impurity-removed material. According to the method for recovering the lithium iron phosphate material from the waste battery, provided by the invention, impurities in the recovered lithium iron phosphate material can be reduced, and the purity of the recovered lithium iron phosphate material is increased; the performance of the lithium iron phosphate material synthesized again after the lithium iron phosphate in the waste battery is recycled can meet the brand-new battery-grade raw material requirement.

The present disclosure generally relates to collecting, handling, and / or sorting of waste or other objects. For example, certain embodiments are generally directed to systems and methods for collecting and sorting objects such as trash, recyclables, compostables, etc. In some cases, such systems may be used at a MRF (materials recovery facility), a transfer station, a public facility, or other locations where various objects in a waste stream are to be sorted. In some cases, the system may be relatively small and compact. The waste stream may be singulated or separated into discrete objects to facilitate identification and sorting. For example, two or more discrete objects within the waste stream that are contacting one another or are proximate to one another may be separated, so as to facilitate identification and / or sorting of the objects. This may be useful, for example, for producing less contaminated streams of trash, recyclables, compostables, etc. from a waste stream.

The invention belongs to the technical field of lithium ion battery positive electrode materials, and particularly relates to a waste lithium iron phosphate positive electrode material recycling and repairing method. Comprising the following steps: (1) sintering the waste lithium iron phosphate positive plate, pulverizing and sieving to obtain red powder; (2) measuring the molar ratio of each element in the red powder, premixing the red powder, a carbon source, an organic acid and a supplementary lithium source in an aqueous solution, and sanding; and (3) carrying out spray drying on the sanded material, calcining at high temperature, cooling and sieving to obtain a lithium iron phosphate finished product. According to the method disclosed by the invention, the surface layer of the red powder can be etched by using the organic acid, and secondary uniform distribution of surface layer elements after leaching is promoted, so that a melting assisting effect is realized, the specific surface and morphology of the material are optimized, and the obtained lithium iron phosphate finished product has relatively high specific discharge capacity and excellent rate capability. In addition, the recycling and repairing process is simple in technology, high in operability, green and free of pollution in the whole process and high in economic and environment-friendly value.

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.

The present invention belongs to the technical field of resource recovery, and specifically relates to a method for removing impurities from a lithium-ion battery leachate. The method for removing impurities from a lithium-ion battery leachate provided by the present invention produces polyferric sulfate for phosphorus removal while removing iron, thereby achieving iron and phosphorus removal without increasing reagent consumption and steps. The present invention can use an excess of fluorine-containing reagents to ensure that calcium and magnesium are completely removed while removing calcium and magnesium, and then use a defluorination material to remove excess fluorine; the defluorination materials used in the present invention can be reused in subsequent processes, reducing the consumption of defluorination materials. The method for removing impurities provided by the present invention realizes material recycling while improving the purity of the lithium-ion battery leachate, and does not generate excessive waste liquid, thereby improving environmental protection.

The invention belongs to the technical field of recycling of positive electrode materials of waste lithium ion batteries, and particularly discloses a method for quickly upgrading and regenerating lithium iron manganese phosphate by utilizing waste lithium iron phosphate powder. According to the method, the inherent characteristics of a leaching agent and an oxidizing agent are utilized, mechanical activation is combined with high-temperature sintering, and the waste lithium iron phosphate positive electrode active material is quickly regenerated into the lithium iron manganese phosphate material. Solid-liquid separation and impurity removal are not needed in the whole process, the obtained precursor can be directly used for preparing lithium manganese iron phosphate, compared with existing recycling, economic benefits can be improved to the maximum extent, influences on the environment can be reduced, and the additional value of recycled products is effectively improved.

The invention provides an asphalt pavement old material recycling device and method, and belongs to the technical field of crushing machining, and the asphalt pavement old material recycling device comprises a first-stage crushing assembly, a second-stage crushing assembly and a separation assembly; the separation assembly is arranged between the first-stage crushing assembly and the second-stage crushing assembly; the separation assembly comprises a liquid storage tank, a first discharging mechanism and a second discharging mechanism; liquid used for enabling asphalt in the mixture to float and stone in the mixture to sink to the bottom is arranged in the liquid storage tank, a heating component is arranged on the liquid storage tank, and the first discharging mechanism is arranged on the liquid storage tank and used for discharging the stone in the liquid storage tank; the second discharging mechanism is arranged on the liquid storage tank and used for discharging asphalt in the liquid storage tank to the second-stage crushing assembly. And a cooling component is arranged between the second discharging mechanism and the second-stage crushing assembly. According to the asphalt pavement old material recovery device and the asphalt pavement old material recovery method provided by the invention, the separation efficiency of asphalt is improved, and impurities in the separated asphalt are greatly reduced.

The invention provides a metal material recycling device and a method for leaching fluorine beryllium thallium and lithium rubidium cesium in lithium slag. Relates to the field of metal material recycling, and comprises a leaching tank placed on the ground through four supporting frames, the top of the leaching tank is fixedly provided with a top cover, and the bottom of the leaching tank is fixedly provided with a bottom cover. According to the metal material recycling device and the leaching method for fluorine beryllium thallium and lithium rubidium cesium in the lithium slag, the ultrasonic generator is arranged to supply energy to the first ultrasonic transducer and the second ultrasonic transducer to generate ultrasonic waves, the ultrasonic waves generate microjet flow to impact the surface of minerals, acid liquor permeation and ion diffusion are accelerated, the leaching time is shortened, and the efficiency is improved; the surface of the lithium slag is not prone to passivation, the leaching rate of target metal ions is increased, the leaching liquid is pumped out through the water suction pump, manual contact with the leaching liquid in the next solid-liquid separation procedure is facilitated, dilute sulfuric acid is supplemented through the acid supplementing pipe, then the lithium slag is placed through the funnel, and the consistency and controllability of starting of the leaching reaction are guaranteed.

The invention relates to a method for catalytically degrading a polyester material by using an ionic liquid and application of the polyester material, and mainly solves the technical problems of high energy consumption, environment unfriendliness and complex process in polyester material recovery research in the prior art. According to the technical scheme, the novel method for catalytically degrading the polyester material through the ionic liquid comprises the steps that the ionic liquid is used as a catalyst, diol is used as an alcoholysis agent, polyester is catalytically degraded, and the ionic liquid has the following general formula: A + B-(I); in the formula, A < + > is an organic alkali cation, and B <-> is an alkoxy anion, the problem is well solved, and the method can be applied to polyester recovery industry.

The utility model discloses asphalt concrete reclaimed material recovery equipment which comprises a box body, and relates to the technical field of asphalt concrete recovery. According to the asphalt concrete reclaimed material recycling equipment, aggregate can be subjected to three-stage screening through the arranged screening assembly, during use, the aggregate is poured into a fixed barrel through a feeding hopper, then a driving motor is started to drive a shaft rod to enable a scraping plate to rotate, and at the moment, the scraping plate can turn over to stir the aggregate in the fixed barrel and move towards a first discharging hopper; at the moment, small aggregates fall onto the top surface of the sieve plate through sieving holes, large aggregates fall onto a discharging device on the inner side of a first discharging hopper through a fixing barrel, then a reciprocating vibrator is started to drive the sieve plate to vibrate up and down to screen the aggregates, and at the moment, the small aggregates are discharged through a discharging port after being screened by the sieve plate; and aggregates with medium sizes can be discharged out of the device from the second discharging hopper through the screening plate, the screening effect is good, and the overall production efficiency is improved.

The invention belongs to the technical field of lithium ion battery material recovery, and discloses a regeneration, repair and doping method of a waste lithium iron phosphate material and a regenerated positive electrode material. The method comprises the following steps: firstly, immersing waste LiFePO4 powder into a mixed solution of citric acid and ascorbic acid, oscillating to selectively dissolve out Fe < 3 + > impurities, and synchronously reducing Fe < 3 + > on the surface to Fe < 2 + >; then Li2CO3 is added into the leached powder for lithium bit compensation, and ball milling and uniform mixing are carried out; then Al2O3 and TiCl3 are added for aluminum-titanium co-doping, and ultrasonic dispersion is carried out uniformly; and finally, carrying out segmented sintering. In the first stage, sintering is carried out in an air atmosphere at 300-350 DEG C; in the second stage, sintering is performed at 600-700 DEG C in an inert gas atmosphere; and finally obtaining the regenerated positive electrode material. According to the method, waste lithium iron phosphate batteries can be turned into wealth, the lithium iron phosphate positive electrode material with good electrochemical performance is obtained, the complex and expensive impurity removal process is omitted, the cost is low, and possibility is provided for large-scale industrial regeneration and repair of waste lithium iron phosphate active substances.

The invention belongs to the technical field of material preparation and air pollution control, and particularly relates to preparation of a manganese oxide composite material photocatalyst with foamy carbon as a substrate material. According to the preparation method, a solution impregnation method is adopted, the surface of foamy carbon is pretreated and activated, an activated carbon skeleton can adsorb a material precursor more easily, and the MnxOy / FC composite material can be prepared through calcination. The MnxOy is anchored on the carbon skeleton, so that the loss of MnxOy nanoparticles in air flow is reduced, the secondary pollution possibly caused by the MnxOy nanoparticles in the catalytic reaction process is avoided, and the recycling of the material can be realized through the integral material design. Experiments prove that the degradation rate of the material to 600 ppm toluene under the irradiation of sunlight simulated by a 300 W xenon lamp reaches 95% within 30 min, the material has rapid degradation efficiency to toluene under the concentration of 100-2000 ppm, the reaction activity is basically kept unchanged in 20 cycle experiments, and the material has very strong stability. And the catalyst has good degradation performance on removal of gaseous pollutants such as formaldehyde, benzene and the like, and has universality. The preparation method is simple, the raw materials are low in price, the chemical properties of the materials are stable, no pollution is caused, the energy consumption in the preparation process is low, and the material shows excellent degradation performance on VOCs, can be applied to various waste gas emission or leakage environments and the like, and has a wide application prospect.

The utility model discloses a regeneration device of a hydrogen adsorption tower, and relates to the technical field of hydrogen adsorption. Comprising a hydrogen adsorption tower A and a hydrogen adsorption tower B. A hydrogen feeding port of the hydrogen adsorption tower A and a hydrogen feeding port of the hydrogen adsorption tower B are connected with a first hydrogen feeding pipeline and a second hydrogen feeding pipeline respectively, and the first hydrogen feeding pipeline and the second hydrogen feeding pipeline are provided with a first feeding valve and a second feeding valve respectively. When the hydrogen adsorption tower is regenerated, the hydrogen adsorption tower is decompressed, organic phases in the hydrogen adsorption tower are desorbed by water vapor, the desorbed regenerated materials are recycled by the material recycling unit, and then the hydrogen adsorption tower is purged by hot nitrogen and cold nitrogen in sequence. And finally, hydrogen balance is performed on the hydrogen adsorption tower by using qualified hydrogen, so that regeneration of the hydrogen adsorption tower can be completed, and stable operation of hydrogen adsorption is ensured.

The invention relates to the technical field of building material recycling equipment, and particularly discloses building waste recycling anti-blocking crushing and recycling equipment which comprises a bottom frame, the top of the bottom frame is rotationally connected with a top cover, and the top cover is fixedly communicated with a feeding port. Under the action of air pressure, the deformation strips expand outwards, the distance between the deformation strips and the inner surface of the stirring plate is gradually reduced, that is, the distance between the deformation strips and the stirring plate is intermittently controlled, so that large muck blocks are crushed when the distance is large, and small muck blocks are crushed when the distance is small; the crushing capacity of muck blocks is greatly improved, the crushing fineness is improved, two symmetrical telescopic plates in a deformation strip are connected through a linkage plate, even if the deformation of the deformation strip is limited, the deformation strip can only expand outwards along a straight line, and then the expansion stability is greatly improved; and the problem that the crushing effect is reduced due to oblique deformation when the deformation strips make contact with the inner surface of the stirring plate is solved.

The invention discloses a fiber-reinforced thermoplastic resin-based composite material based on dynamic reversible interface interaction and a preparation method and a recycling method thereof. The fiber-reinforced thermoplastic resin-based composite material comprises a modified thermoplastic resin matrix and a modified fiber reinforcement which are compounded with each other, the modified thermoplastic resin matrix and the modified fiber reinforcement are bonded and connected through dynamic bonds with dynamic reversible interface interaction. Through construction of dynamic reversible interface interaction in the fiber-reinforced thermoplastic resin-based composite material, infiltration compounding and interface bonding between a fiber reinforcement and a high-viscosity thermoplastic resin melt can be enhanced, and interface debonding and total-value recycling of the fiber reinforcement in the composite material recycling process can be effectively promoted; therefore, the bottleneck problems of poor wettability in the forming process, low bonding fastness at a heterogeneous interface, insufficient mechanical properties, low waste recovery value and the like confronted by the development of the fiber-reinforced thermoplastic composite material are effectively solved.

The invention provides a high-compaction lithium iron phosphate positive electrode material and a preparation method thereof, and belongs to the field of recycling and repairing of lithium ion battery materials. The method comprises the following steps: step 1, dispersing iron phosphate, lithium carbonate, glucose, polyethylene glycol PEG and titanium dioxide into water to form first slurry; step 2, sanding the first slurry to a first predetermined particle size requirement, and then performing spray drying to obtain first solid powder; 3, roasting the first solid powder to obtain a sample A; step 4, dispersing iron phosphate, lithium carbonate, glucose and PEG into water to form second slurry; step 5, sanding the second slurry to a second predetermined particle size requirement, and then performing spray drying to obtain second solid powder; step 6, roasting the second solid powder to obtain a sample B; and step 7, mixing the sample A and the sample B, carrying out size mixing, carrying out sand milling, controlling to a third preset particle size requirement, carrying out spray drying, then carrying out roasting, and carrying out airflow crushing to obtain the high-compaction lithium iron phosphate positive electrode material.

The invention provides a multifunctional aerogel fiber based on a waste firefighter uniform fabric and a preparation method thereof, and belongs to the technical field of textile material recovery. The method comprises the following steps: separating aramid fiber 1313, aramid fiber 1414 and conductive fiber from the waste firefighter uniform; dissolving step by step, and compounding with sulfonated MXene to prepare a spinning solution; forming a gel fiber precursor through wet spinning, and spirally winding and stranding; performing supercritical carbon dioxide treatment to construct a porous structure; and finally coating a functional skin layer. Spiral winding stranding is adopted to replace traditional parallel stranding, interface micro-fusion is generated in combination with supercritical carbon dioxide, and mechanical interlocking and hydrogen bond strengthening between fibers are synchronously achieved; the continuity of the conductive network is enhanced through sulfonated MXene modification, and the solvent system difference is avoided through beam splitting spinning. The prepared aerogel fiber has the characteristics of high strength, high conductivity and high temperature resistance, and solves the problems of poor interface bonding and single function of various fibers in the waste firefighter uniform.

The invention discloses steel bar surface layer spraying equipment which comprises a spraying chamber, and the spraying chamber is divided into a spraying cavity and an excess material recycling cavity according to the height through a corresponding partition plate. The material conveying mechanism is used for conveying the reinforcing steel bar materials arranged side by side into the spraying chamber for spraying operation; the spraying mechanism comprises a plurality of annular mounting plates which are connected to the partition plate in a stepped mode at intervals, and a plurality of corresponding spraying heads are evenly distributed on the annular mounting plates at equal angles; and the anti-interference mechanism comprises closing plates which are detachably mounted on the front side and the rear side of the annular mounting plate on the upper side of the partition plate, guide holes used for penetrating through the steel bar materials are formed in the middles of the closing plates correspondingly, and flow blocking annular plates are inwards and fixedly connected to the guide holes through corresponding interlayer sleeves correspondingly. According to the coating spraying device, coating spraying operation on the reinforcing steel bar materials can be completed at a time, the coating spraying uniformity can be ensured, and therefore coating material waste is reduced, and the coating performance is improved.

The invention belongs to the technical field of road engineering material recycling, and particularly relates to an asphalt pavement reclaimed material original biochemical separation process and equipment, and the process comprises the following steps: 1, recovering an old asphalt pavement to obtain an old asphalt mixture; step 2, carrying out dust removal treatment on the recycled old asphalt mixture; 3, preliminarily scattering the old asphalt mixture in a flexible scattering manner; 4, the scattered materials are subjected to primary screening; step 5, performing primary crushing on the coarse material subjected to primary screening; step 6, performing secondary crushing on the materials subjected to primary crushing; step 7, carrying out deasphalting membrane treatment on the crushed material by adopting a physical or chemical method; and step 8, performing fine screening on the material after the asphalt film is removed. Through the steps of flexible scattering, multi-stage crushing, fine screening and the like, excessive crushing of aggregates can be effectively avoided, coarse and fine aggregates with different particle sizes can be accurately separated out, and the quality and applicability of the aggregates are improved.

The invention relates to the field of lithium ion battery negative electrode material recovery, and particularly discloses a recovery process of a waste graphite negative electrode plate of a lithium ion battery. The recycling process comprises the following steps: S1, crushing a graphite negative electrode plate of the waste lithium ion battery, and sieving with a 150-300-mesh sieve to obtain recycled graphite powder; and S2, carrying out spheroidizing repair, graphitization treatment, demagnetization and grading screening on the recycled graphite powder to obtain the lithium ion battery negative electrode graphite powder with the particle size of 6.5-32 microns. According to the recovery technology, effective separation of the graphite powder and the copper powder is achieved, the recovery efficiency is remarkably improved, the technological process is simplified, no chemical reagent is used in the recovery technology, the environmental protection property of the technological process is enhanced, and the recovery technology is suitable for large-scale industrial use.

The invention belongs to the technical field of lithium battery material recovery, and particularly relates to a method for recovering a waste lithium iron phosphate positive electrode material. The method comprises the following steps: (1) grinding and sieving the positive electrode material of the waste lithium iron phosphate battery, mixing with an alkaline solution, stirring and leaching, and carrying out solid-liquid separation to obtain a lithium-rich solution and leaching residues; (2) introducing a saturated sodium carbonate solution into the obtained lithium-rich solution, carrying out heating reaction, filtering, taking a solid phase, and drying to obtain lithium carbonate; and the obtained leaching residues are dried, and ferroferric oxide is obtained. According to the method, the waste lithium iron phosphate battery positive electrode material is leached through the alkaline liquid phase, it can be guaranteed that lithium and iron in waste lithium iron phosphate are separated through a one-step leaching method, and therefore selective lithium extraction is achieved. The whole technological process is convenient to operate, mild in reaction condition and low in energy consumption, does not need to use any acid or oxidant, avoids generation of a large amount of waste liquid and harmful gas, and is high in selective lithium extraction efficiency.

The utility model discloses a waste lithium battery positive electrode material recovery device, which relates to the technical field of waste battery recovery, and adopts the technical scheme that the waste lithium battery positive electrode material recovery device comprises a rack, a crushing box and a crushing roller rotationally arranged in the crushing box, a screening box is arranged on the rack and below the crushing box, and a plurality of groups of screening plates are arranged in the screening box; each group of sieve plates comprises a bottom sieve plate fixed with the screening box and a top sieve plate in sliding connection with the screening box, each group of top sieve plates are in sliding contact with the bottom sieve plate through a plate surface, meshes of each group of top sieve plates correspond to meshes of the bottom sieve plate, and the screening box is provided with an adjusting mechanism for sliding the top sieve plates. After different types of waste lithium batteries are replaced, the size of the positive electrode material of the lithium battery is changed, and a worker can drive the top sieve plate to slide through the adjusting mechanism and adjust the coincidence degree of the meshes in the top sieve plate and the bottom sieve plate, so that the size of the screening holes is adjusted to adapt to the size of the current positive electrode material of the lithium battery, the adjustment is relatively convenient, and the working efficiency is improved. And the applicability of the device is improved.

The present invention relates to a method for recovering retired ternary lithium battery positive electrode materials, wherein the ternary positive electrode materials are sequentially stripped, crushed, and acid-leached, and then subjected to two electrolytic cell treatments, wherein the first treatment is carried out at a pH of 3 to 6, and the acid leaching solution is used as an electrolyte at a temperature of 10 to 100 A / m 2 Electrolysis is carried out for 3-8 hours at a current density of , and MnO2 at the anode of the electrolytic cell, the Ni-Co complex at the cathode of the electrolytic cell, and the lithium salt in the electrolyte are obtained respectively. The lithium salt is precipitated by sodium carbonate to separate Li, Mn, and Ni-Co. The recovery rate of each metal is high and the purity is good. After that, the electrode containing the Ni-Co complex is continued to be electrolyzed in the electrolytic cell, and the metal nickel and cobalt are separated by controlling parameters such as pH and electrolyte composition. The present invention can efficiently and accurately recover the valuable metals of the ternary positive electrode materials of retired lithium-ion batteries through simple electrolytic cell treatment, is simple to operate and has high economic value.

The invention discloses automatic bed frame metal material recycling processing equipment which comprises a metal material compression processing device, a smashing device and a smelting reduction device, the metal material compression processing device comprises a compression forming bin, and a discharging opening is formed in the compression forming bin; a transverse compression assembly used for transversely compressing metal materials in the direction of the discharging opening is arranged in the compression forming bin, side compression and upper compression are arranged, waste is preliminarily compressed at the same time, the overall compression efficiency is improved, automatic opening is achieved in the discharging process, and the waste is discharged conveniently. A position guide assembly is arranged and can control the moving positions of the transverse compression assembly, the vertical compression assembly and the lifting baffle assembly in different time periods, and a series of work such as compression, opening of a discharging opening, metal pushing and closing of the discharging opening is achieved; the efficiency of pig iron reduction is greatly improved, and the recycling efficiency of waste metal of the bedstead is improved.

The application discloses a preparation device for regenerated colored lycra fabric fibers, belongs to the technical field of clothing fiber recycling equipment, and solves the problems of low impurity removal rate, poor cutting effect and low efficiency in the prior art. The device comprises a conveying device, which is used for feeding materials and conveying the materials into a cleaning device. The cleaning device is used for cleaning the materials. A recycling device is used for recycling the materials. The cleaning device is arranged below the output end of the conveying device. The recycling device is arranged at the side of the cleaning device. A transfer device is further arranged above the cleaning device and the recycling device. The application cleans the materials in the basket through the cleaning device, effectively removes dust and other impurities on the materials, improves the quality of material recycling, and increases work efficiency. The material is dried in the drying device first, and then cut and crushed for recycling, so that the cutting effect is ensured and the work efficiency is high.