11628 results about "Waste material" patented technology

The invention belongs to the technical field of aluminum alloy production, and particularly discloses a low-carbon environment-friendly method for producing a high-strength 8006 alloy container foil, aluminum alloy component proportion and melt treatment and cold rolling production processes are optimized, a large amount of regenerated aluminum waste can be digested, energy consumption is lower than that of a primary aluminum ingot by 50% or above, a blank with the thickness of 1.5 mm is produced through triple continuous rolling, and the production cost is low. The container foil finished product is rolled through 4-5 passes of cold foil rolling, compared with a conventional scheme, the rolling passes are reduced by 2-3, the machining cost is saved by 500 yuan / ton, the blank thickness can be reduced through the production scheme, the cold foil rolling production passes are reduced, high-temperature intermediate annealing is not needed in the cold rolling production process, about 280 kw.h annealing power consumption is saved for each ton, low-carbon short-process production is achieved, and the production cost is reduced. The tensile strength of the finished product is larger than or equal to 150 MPa, the ductility is larger than or equal to 18%, the tensile strength is about 20 MPa higher than that of container foil produced through a conventional scheme, deformation is not likely to happen after punching forming, and the terminal use effect is better.

The invention provides a method for recovering tungsten and rhenium from tungsten-rhenium alloy waste, which comprises the following steps: S1, collecting the tungsten-rhenium alloy waste, and crushing to obtain tungsten-rhenium alloy waste powder; s2, the cleaned tungsten-rhenium alloy waste powder is put into a reactor, and then a strong alkaline solution containing hydrogen peroxide is added into the reactor for a reaction; in the strong alkaline solution, the concentration of OH <-> dissociated by the strong alkaline substance is 2.0-4.0 mol / L, and the mass fraction of hydrogen peroxide in the strong alkaline solution is 5-15%; in the reaction process, synchronously and continuously introducing oxidizing gas into the reactor and applying ultrasonic treatment; and S3, after the reaction is finished, carrying out solid-liquid separation, collecting a leaching solution, then separating tungsten-containing ions and rhenium-containing ions in the leaching solution to respectively obtain a tungsten-containing ion solution and a rhenium-containing ion solution, and carrying out subsequent treatment to obtain tungsten salt or metal tungsten and rhenium salt or metal rhenium. According to the method, the passivation problem can be effectively solved, and the leaching rate and recovery rate of W and Re can be increased.

The invention relates to the technical field of injection molding waste plastic recovery, in particular to injection molding equipment and a process for producing plastic automobile ornaments. The equipment comprises an injection machine and an online recycling mechanism, the injection machine is provided with a double-channel solution cavity composed of a new material main runner and a waste material returning cavity, and the tail ends of the two channels converge in a 30-degree Y shape; the on-line recovery mechanism comprises a waste conveyor belt, a crushing mechanism and a transmission device, a magnetic separation impurity removal device is arranged in the crushing mechanism, and a discharge end is connected with the batching mechanism. Through double channels and a Y-shaped confluence structure, production waste is subjected to online recovery and crushing and then is fused, mixed and reused with new materials, the waste utilization rate is increased, and the cost is reduced. The magnetic separation and impurity removal device efficiently removes metal impurities through the movement of inclined avoiding, rotary impurity scraping and inclined discharging of a scraping plate; the batching mechanism removes dust to prevent impurities from affecting melt performance. The crushing device adapts to different waste materials, airflow assists discharging to improve the efficiency, and the green production concept is met.

The invention relates to the field of lathes, in particular to a wind power bolt slender shaft turning special machine which comprises a machine body composed of a shell and a base. A main shaft unit, a sliding table unit and a tool rest unit are arranged on the base; the self-avoiding positioning unit is arranged on the main shaft unit, the self-avoiding positioning unit comprises a telescopic positioning assembly and a locking assembly used for locking the positioning assembly, and the positioning assembly is used for conducting double positioning of axial jacking and radial clamping on the wind power bolt; the positioning assembly can contract in the machining process so as to avoid a tool feeding space. The retractable positioning assembly is matched with the locking assembly for linkage unlocking, when the tool rest unit moves to a clamping area, unlocking can be automatically triggered, the claw petals are retracted, the machining space of a tool is completely avoided, and therefore integrated continuous machining of a wind power bolt shaft body and threads at the two ends is achieved. And the procedures of end waste cutting and secondary clamping are thoroughly eliminated.

The invention discloses sintered neodymium-iron-boron magnet grinding machining equipment, and relates to the technical field of neodymium-iron-boron magnet machining, the sintered neodymium-iron-boron magnet grinding machining equipment comprises a machining table, the machining table is provided with a grinding assembly, a clamping assembly, a steering adjusting assembly and a cooling assembly, and the clamping assembly is used for clamping a magnet body; the grinding assembly is used for achieving grinding machining of a magnet body, the steering adjusting assembly is used for achieving rotation of the magnet body and achieving multi-directional machining of the magnet body in a matched mode, and the cooling assembly is used for cooling treatment when the magnet body is machined, so that machining is more stable. A plurality of through grooves are formed in the machining table, and a waste collecting assembly is arranged in the machining table and used for collecting machined waste. The problems that in the prior art, a grinding mechanism is directly driven by a feeding mechanism to conduct grinding, the microstructure of a magnet is easily damaged, and the magnetic performance is reduced are solved.

The utility model relates to a cloth cutting machine for shoemaking, which belongs to the technical field of cutting machines and comprises a cutting platform, a collecting vehicle and shoemaking cloth, the cutting platform is provided with a feeding conveying belt and a discharging conveying belt, the top of the cutting platform is fixedly provided with an equipment support, and the top of the equipment support is fixedly provided with a hydraulic cylinder. A fixing support is fixedly connected to the bottom of the hydraulic cylinder, a cutting roller is rotationally connected to the inner wall of the fixing support, and arc-shaped cutting tools are evenly and fixedly installed on the outer wall of the cutting roller. According to the cloth cutting device, the cylindrical cutter is arranged, cloth can be cut in the rotating process, the cloth can be cut in the transmission process, the time consumed by lifting of an air cylinder can be saved, the cutting efficiency is further improved, the cut cloth can be discharged and separated from waste materials after being cut, and follow-up machining is facilitated.

The invention discloses a method for preparing spherical metal fine powder by using coarse / waste powder through ultrasonic atomization, which comprises the following steps of: (1) collecting coarse / waste powder raw materials for ultrasonic atomization powder preparation, (2) conveying the coarse / waste powder to an electric arc melting area through argon gas flow, and carrying out melting and ultrasonic atomization powder preparation processing; (3) in the powder preparation process, the powder is continuously collected by using argon circulating airflow, so that the continuity of the powder preparation process is ensured; and (4) finally screening the prepared powder in particle size ranges to obtain high-quality spherical fine powder in different particle size ranges. According to the method, the recycling and reusing problems of 3D printing splashing waste powder and coarse powder in the traditional gas atomization powder manufacturing process are solved, and the powder pollution risk is remarkably reduced; according to the ultrasonic atomization re-powdering technology, the high-quality spherical metal fine powder needed by additive manufacturing can be efficiently prepared, powder waste discharge and environmental burden are reduced, the obtained powder can be directly used as a high-quality raw material for additive manufacturing, and green and sustainable development of the metal additive manufacturing industry is promoted.

The invention discloses an inclined extrusion rack of a large-diameter cold-bending hollow section steel extrusion forming device, and belongs to the technical field of cold-bending hollow steel pipe machining. The inclined extrusion rack comprises a rack body, a feeding assembly is arranged on the right side of the rack body, a cut inclined feeding roller is arranged on the feeding assembly, and a working plate is connected to the inner wall of the rack body through bolts; and the lower surface of the working plate is fixedly connected with a lower connecting plate. According to the large-diameter cold-bending hollow profile steel extrusion forming device, in the working process, the rack body is fed through the feeding assembly, machining is completed in the rack body, at the moment, a scraping plate plays a role in scraping welding waste, meanwhile, a motor works, at the moment, a cleaning plate can move in the vertical direction, welding slag can be efficiently cleaned, and the working efficiency is improved. And meanwhile, the cleaning plate moves in the horizontal direction along the workpiece, welding slag can be swept down, the cleaning effect is better, the welding slag is not left, and the working efficiency is high.

The invention belongs to the technical field of scattered metal recovery, and particularly relates to a recycling method of tungsten-rhenium alloy waste. The tungsten-rhenium alloy is a solid solution strengthened alloy which takes tungsten element as a matrix and consists of the tungsten element and rhenium element, and has the characteristics of high melting point, high strength and high hardness. As the price is high, it is very necessary to comprehensively utilize the tungsten-rhenium alloy waste. The invention discloses a recycling method of tungsten-rhenium alloy waste. Firstly, tungsten-rhenium alloy waste is cleaned, dried and smashed, and waste powder is formed; then dispersing the waste material powder into water dissolved with ammonium metatungstate and a surfactant; then, carrying out spray drying to form mixed powder; and finally, the mixed powder is subjected to roasting and hydrogen reduction, and tungsten-rhenium alloy powder with the metal rhenium content lower than the metal rhenium content in the tungsten-rhenium alloy waste is formed. Compared with an existing tungsten-rhenium alloy waste recycling method, the recycling method has the advantages of being simple in process, low in energy consumption, small in loss and good in uniformity.

The invention provides a method for making foam slag in LF (ladle furnace) refining by using a waste graphite electrode, which specifically comprises the following steps: grinding the waste graphite electrode to obtain graphite electrode powder, and adding limestone as a foaming agent in the LF refining. 0-1.25 kg / t of steel limestone is added firstly, and 0.018-0.19 kg / t of steel graphite electrode powder is added every 2 min. Compared with the prior art, by utilizing the characteristics of high carbon content, high conductivity and low sulfur of the graphite electrode, the invention aims to realize submerged arc heating, reduce power consumption and shorten refining time so as to meet the requirement of continuously increasing LF smelting indexes under the high-quality development trend of steelmaking.

The invention relates to a high-precision ultra-long size copper foil die cutting assembly and a production process thereof, the copper foil assembly sequentially comprises a surface insulation film layer, a copper foil layer and a bottom insulation film layer from top to bottom, and the copper foil layer in the copper foil assembly is integrally formed through three times of die cutting of three continuous die cutting roller sets and waste discharging; and a reinforcing insulating film is attached to the outer surface area of the bottom insulating film layer corresponding to the outer end part of the thin and long copper foil strip. The rotary die-cutting machine is adopted for production, the ultra-long copper foil die-cutting assembly (FDC) is segmented according to a specific rule, then a small-size die and a matched splicing type production process are developed and designed, the machining period and machining difficulty of the die can be effectively reduced, the die development and manufacturing cost is reduced, and the production efficiency is improved. Meanwhile, the die damage risk is reduced, and machine adjusting difficulty is lowered; the copper foil material used as the conduction layer in the assembly is expensive and needs precise die cutting, and the staggered layout mode is adopted, so that the waste material area is reduced, and the material utilization rate is improved.

The invention belongs to the technical field of shoe sole waste recycling treatment, and discloses a shoe sole processing waste recycling device which comprises a crushing box, two groups of crushing rollers are rotatably arranged on the inner side of the crushing box, linkage pressure applying assemblies are arranged on the two sides of the crushing rollers, and each linkage pressure applying assembly comprises two groups of limiting guide columns. According to the crushing device, through cooperation of structures such as the linkage pressure applying assembly and the crushing rollers, power can be provided for the pressure applying device when the crushing rollers rotate, it is guaranteed that downward pressure is provided while the crushing rollers rotate, and the crushing efficiency is improved; and therefore, the problems that the normal crushing treatment is influenced due to accumulation or clamping stagnation caused by the fact that rubber cannot be quickly concentrated between the crushing rollers, and the working pressure of workers is greatly increased are effectively solved.

The invention provides an environment-friendly water-based acrylic emulsion adhesive without containing an organic solvent. The environment-friendly water-based acrylic emulsion adhesive is prepared from the following raw materials: 55-60 wt% of eleostearic acid hydroxyethyl acrylate (TMA), 15-25 wt% of butyl acrylate (BA), 3-10 wt% of acrylic acid (AA), 2-5 wt% of a cross-linking agent, 3-8 wt% of modified soil and 0.5-1 wt% of an initiator as a solid phase; the liquid phase is deionized water, and the environment-friendly water-based acrylic emulsion adhesive is prepared through semi-continuous emulsion polymerization. The prepared environment-friendly water-based acrylic emulsion adhesive is high in biodegradability and low in VOC content, has the mechanical property matched with that of a traditional acrylic emulsion adhesive and also has the self-repairing capacity, waste materials can be treated by changing the temperature or pH condition, the environment-friendly water-based acrylic emulsion adhesive can be recycled for multiple times, and the recycling cost is reduced.

The invention discloses a broken sample anti-adhesion and waste taking device and method under an automatic mode of a tensile testing machine, and relates to the technical field of tensile testing machines. The clamp comprises a clamp body, a horizontal pushing type driving mechanism, a clearance, a gas spring ejection mechanism, a manipulator and a control system. A gap (delta = 30mm) is reserved to form a manipulator operation window, so that the problem of failure in grabbing of the fractured sample is solved; the gas spring ejection mechanism pushes the ejection head to extend out by 3mm with the thrust of 20N, and the adhered sample is forcibly separated; the clamping force of the horizontal pushing type driving mechanism reaches 30 MPa, and the maximum opening stroke exceeds 100 mm. All the components are coordinated through a PLC, the processes of sample feeding, tensile sample breaking treatment and separation and recovery are completed, the clamping face state is detected in real time through a laser obstacle avoidance sensor, and operation safety is guaranteed. Manual intervention is eliminated, the automatic compatible defect is overcome, and the automatic testing efficiency of the tensile testing machine is improved.

The invention is suitable for the technical field of powder metallurgy sintering equipment, and provides an automatic graphite paper pressing, paving and replacing device which comprises a sintering platform, and the sintering platform comprises a sintering mold; the device further comprises a graphite paper winding module, a graphite paper set replacing module, a graphite paper hollow punching module and a conveying mechanism. The graphite paper winding module comprises a graphite paper winding working unit and a graphite paper winding standby unit, and the graphite paper winding working unit comprises a graphite paper recycling winding drum used for conveying new graphite paper between the graphite paper hollow punching module and the sintering mold; and the graphite paper hollow punching module comprises a hollow punch used for punching graphite paper sheets with fixed specifications and a graphite paper push rod used for pressing and paving the graphite paper sheets at a set depth of the sintering mold. The full-process automation of the graphite paper from feeding, punching, pressing and paving to waste recovery and unit replacement is realized; the problems of low manual operation efficiency, poor quality consistency, safety risks and the like are effectively solved, and the device is suitable for a continuous sintering production line.

The invention discloses an automatic taking stamping die device with a waste separation function, and relates to the technical field of stamping machines, the automatic taking stamping die device comprises a bottom plate, the top surface of the bottom plate is provided with a stamping base unit capable of realizing classified and divided conveying of waste and a target workpiece after a stamping process is completed; the top surface of the stamping base unit is provided with a stamping execution unit with a function of quickly replacing a die as required; the stamping base unit comprises a stamping base frame fixedly mounted on the top surface of the bottom plate; when the stamping driving rod descends to the preset height, the punch makes contact with a stamping blank, workpiece shaping in the first stage and workpiece cutting and separating operation in the second stage are synchronously completed, after workpiece machining is completed, the punch mounting base continues to conduct downward pressing, the material taking pressing block presses one end of the workpiece, and the workpiece is cut and separated. The other end of the workpiece is promoted to tilt and fall into the material taking movable groove, clamping stagnation of the workpiece and the punch is prevented, meanwhile, it is ensured that the workpiece is attached to the surface of the guiding protective net, and smooth proceeding of the follow-up automatic workpiece taking procedure is ensured.

The invention belongs to the technical field of Fischer-Tropsch wax production, and particularly relates to a Fischer-Tropsch wax production continuous drying device which comprises a shell, a speed reduction motor set is fixedly connected to the bottom wall of the shell, a shaft rod is fixedly connected to the main shaft end of the speed reduction motor set, a bearing part is arranged on the outer wall of the shaft rod, and a containing cavity is formed in the inner wall of the shell; a plurality of supporting rods annularly arrayed on the outer wall of the shaft rod are arranged in the inner wall of the containing cavity, and an extrusion mechanism used for extruding powder is installed on the supporting rods. According to the continuous drying device for Fischer-Tropsch wax production, powder is continuously extruded through the extrusion mechanism in the process of continuously stirring the powder, agglomerated parts in the powder are extruded and broken through extrusion among the powder, waste is reduced, the powder can be rapidly clamped through the arrangement of a slow return assembly, a baffle is slowly reset, and the production efficiency of the Fischer-Tropsch wax is improved. And the powder which is squeezed and shoveled is prevented from flying.

The invention provides rubber-plastic composite modified asphalt suitable for low-temperature regions and a preparation method thereof, and belongs to the technical field of modified asphalt preparation. The modified asphalt is prepared from matrix asphalt, rubber powder, polyethylene and a compatibilizer, the content of the rubber powder is 15%-25% of the weight of the matrix asphalt, the content of the polyethylene is 4%-6% of the weight of the matrix asphalt, and the content of the compatibilizer is 5%-15% of the weight of the matrix asphalt; the preparation method comprises the following steps: heating the matrix asphalt to a flowing state, adding the rubber powder, stirring and swelling for 60 minutes, adding the polyethylene and the compatibilizer, stirring, and shearing at a high speed of 5000r / min for 45-60 minutes. Through rubber and plastic compound modification, the low-temperature crack resistance, the high-temperature stability and the water stability are excellent, the storage stability is good, the cost and pollution are reduced by utilizing waste materials, the process is simple, and the low-temperature road pavement material is suitable for road engineering in low-temperature areas.

The utility model discloses a sewage filtering device. The sewage filtering device comprises a bottom support, a connecting base, a filtering mechanism and a water pumping mechanism, a first waste recycling box, a second waste recycling box and a filtrate box which are opened upwards are arranged in the connecting base, and the filtering mechanism comprises a supporting frame, a first filtering net, a second filtering net and a driving mechanism; the first filter screen is slidably installed on the upper portion of the supporting frame, the second filter screen is slidably installed on the lower portion of the supporting frame, an upper end sliding rail and a lower end sliding rail are correspondingly arranged on the supporting frame, the first filter screen and the second filter screen are slidably connected with the upper end sliding rail and the lower end sliding rail through convex face sliding blocks respectively, and an upper sliding mechanism is arranged on the first filter screen. A lower sliding mechanism is arranged on the second filter screen, and the two filter screens are simultaneously driven to move through a driving mechanism. According to the utility model, sewage can be automatically filtered, filtered waste materials can be automatically poured and collected, and different filter plates can be replaced to filter different types of waste materials.

The invention discloses an automatic part taking stamping trimming die which comprises a lower die base, an upper die base is movably connected to the upper portion of the lower die base, an upper cushion plate is installed on the upper die base, a male die is installed on the upper cushion plate, a lower cushion plate is installed on the lower die base, a first female die is installed on the lower cushion plate, and a second female die is installed on the lower cushion plate. A through hole matched with the male die is formed in the first female die. Through the arrangement of the material taking mechanism, the bearing frame, the servo motor and the second telescopic air cylinder, compared with the prior art, the formed plate can be automatically taken down through the material taking mechanism, compared with a manual material taking mode, the material taking time is effectively saved, the labor intensity of workers is reduced, the structure is simple, use is convenient, and the practicability is high. And under the cooperation of a second telescopic air cylinder and a servo motor, the bearing frame can be driven to ascend and descend, the angle can be adjusted, chippings generated by direct contact between the waste and the waste discharging channel can be prevented from splashing in the mode that the bearing frame is used for buffering and descending to convey the waste, and therefore the safety of workers is guaranteed.

The utility model discloses a device for sorting copper and aluminum particles after crushing of waste lithium batteries, which is provided with a vibrating screen (1), and a material inlet at the upper part of the vibrating screen (1) receives materials generated by a crusher; the sorting device is also provided with a large particle sorting machine (4) and a small particle sorting machine (6); and a large particle outlet and a small particle outlet of the vibrating screen (1) are respectively connected with the large particle sorting machine (4) and the small particle sorting machine (6) through the conveying pipeline (3). By the adoption of the technical scheme, the copper-aluminum mixture generated in the waste lithium battery crushing and sorting process can be efficiently sorted, high-purity copper particles and aluminum particles are obtained, and recycling of waste materials is achieved; the process is reasonable and feasible, equipment is simple, and recovery cost is low.

The invention relates to the technical field of precious metal recovery, in particular to a process for separating precious metal from copper-nickel smelting waste, which comprises the following steps: crushing and grading the waste, adding a sulfuric acid solution containing etidronic acid, leaching, and washing, drying and crushing filter residues to obtain a pretreated material; mixing the pretreated material with a sodium peroxide-sodium carbonate composite flux, roasting, leaching with water, and filtering to obtain a filter residue B; adding a leaching agent containing hydrochloric acid, sodium chlorate and 1, 2-cyclohexanediamine tetraacetic acid into the filter residue B according to the ratio of 1: 3-1: 5, and filtering to obtain filtrate C and filter residue C; adjusting the pH value of the filtrate C to 1.5-2.5, adding an ethanol solution of sodium N, N-diethyldithiocarbamate, precipitating, washing and calcining to obtain sponge palladium; adding ammonium chloride into the filtrate D, precipitating and calcining to obtain sponge platinum; and leaching the filter residue C by using a hydrochloric acid-chloroauric acid mixed solution containing diphenylthiourea, and replacing and calcining zinc powder to obtain crude gold. According to the process, the leaching rates of platinum, palladium and gold and the product purity are greatly improved; flux and reagent systems are optimized, consumption and energy consumption are reduced, waste liquid treatment is matched for up-to-standard discharge, and efficient resource recovery and environment-friendly cooperation are achieved.

The invention relates to the technical field of refractory materials, in particular to an antioxidant and application thereof in steel ladle slag line bricks, and the antioxidant comprises a Si / SiC multiphase material, modified nano Al2O3 and CaF2; the ladle slag line brick comprises an antioxidant, fused magnesite, crystalline flake graphite and phenolic resin. Si-SiC compound waste is subjected to magnetic separation and acid pickling, then a SiO2 passivation layer is formed through pre-oxidation, moisture and air in the storage period are isolated, and a titanate coupling agent is introduced to improve the wettability and compatibility with phenolic resin. P2O5 released by phosphate on the surface of the modified nano Al2O3 at a high temperature reacts with alkali (earth) metal migrated to a SiO2 oxide layer to prevent the alkali (earth) metal from forming a low-melting-point eutectic substance, CaF2 reacts with SiO2 along with temperature rise, a passivation layer is broken, internal Si and SiC are directly exposed, and boron oxide of the modified nano Al2O3 remarkably reduces activation energy and a temperature threshold value of the reaction of CaF2 and SiO2.

The invention provides a method for preparing a high-voltage medium-nickel ternary positive electrode material by synergistic regeneration of a waste ternary lithium battery, which comprises the following steps: S1, taking a pretreated waste high-nickel and low-nickel ternary positive electrode material, calculating and supplementing a metal source and a lithium source according to the metal proportion of the actual content, and mixing the elements according to the total molar ratio of Li: (Ni + Co + Mn) = 1.0-1.1; s2, a composite fluxing agent containing lithium ion metal salt is added into the calibration mixture obtained in the S1, and two-stage sintering is carried out; and S3, coating the surface of the final product with a metal oxide aqueous solution corresponding to the lithium ion metal salt in the S2 as a coating agent to obtain the ternary positive electrode material. The nickel-rich characteristic of the high-nickel material and the manganese / cobalt-rich characteristic of the low-nickel material are utilized to form element complementation, so that the utilization rate of nickel, manganese and cobalt elements in the waste material is maximized, and the composition proportion limitation during regeneration of a single waste material is broken through.

The invention relates to the technical field of waste resourceful treatment, in particular to a sponge titanium weight bottom skin crushing and impurity removing method which comprises the following steps of peeling, bottom skin brake cutting, water jet cutting and crushing, acid leaching and impurity removing, ultrasonic cleaning, argon drying and screening and recycling. The bottom skin is crushed into small-granularity particles by adopting a cross grid water jet cutting technology, metal impurities such as Fe and Ni are removed in combination with acid leaching treatment, residual impurities are removed through multi-stage ultrasonic cleaning, oxidation discoloration is avoided through argon atmosphere drying, and meanwhile water jet sand is recycled; in the process, key indexes such as brake cutting pressure, cutting parameters, acid leaching time and ultrasonic frequency are accurately controlled through a quantification formula. The method effectively solves the problems that equipment is easy to damage during crushing and impurities are difficult to remove in a traditional process, remarkably improves the grade of bottom leather materials, widens the downstream application range, improves the resource utilization rate and economic benefits, and is suitable for industrial batch production.

The utility model discloses a waste rebuilding forming machine for bio-based plant fiber manufacturing, and relates to the technical field of plant fiber manufacturing, the waste rebuilding forming machine comprises a shell, the top of the shell is fixedly connected with a hydraulic rod, the telescopic end of the hydraulic rod extends into the shell through the top of the shell, and a compression structure is installed in the shell. And the compression structure is fixedly connected to a fixing plate in the shell, a compression plate is slidably connected to the top of the inner side of the fixing plate, the fixing plate is of a U-shaped structure, and a compression box is further slidably connected to the interior of the fixing plate. According to the waste rebuilding forming machine for bio-based plant fiber manufacturing, in the downward moving process of a driving plate, when the driving plate and a compression plate are attached to each other, the driving plate can drive the compression plate to move downwards, at the moment, the compression plate can compress waste, meanwhile, a heating rod is powered on, and therefore the waste can be recycled. And then the waste materials in the box-shaped structure are uniformly heated, so that the waste materials can be better fused together, and recovery of the waste materials is facilitated.

The invention discloses a method for preparing a graded porous structure Si-C composite material based on a double-template method, and belongs to the technical field of lithium ion battery negative electrode materials. The method specifically comprises the following steps: (1) silicon waste pretreatment; (2) preparing a double-template / carbon source precursor mixture; (3) sealing, transferring and charging; (4) carrying out in-situ reduction, carbonization and pore forming; (5) template removal and post-treatment; (6) solvent replacement; and (7) drying. The invention relates to a method for preparing a carbon-coated silicon-based composite material (Si-C) with a hierarchical porous structure by using silicon waste (SSW) generated by diamond wire cutting in the photovoltaic industry as a raw material through an innovative synergistic double-template method. When the material prepared by the method is used for a lithium ion battery negative electrode, the key problems of serious volume expansion and short cycle life of a silicon-based material can be solved, and meanwhile, high-added-value resource utilization of solid waste is realized.

The invention provides a recovery device for building waste plastic building materials, and relates to the field of waste recovery devices.The recovery device comprises a feeding mechanism, a crushing mechanism, a separating mechanism and a melting granulation mechanism, and further comprises a crushing system and an electric control system; according to the crushing system, a primary crushing unit is driven by a first variable frequency motor; the secondary crushing unit is arranged at the discharging end of the primary crushing unit and is driven by a second variable frequency motor; the screening unit is arranged below the secondary crushing unit; wherein the electric control system is electrically connected with the first variable-frequency motor and the second variable-frequency motor and used for independently controlling the rotating speeds of the first variable-frequency motor and the second variable-frequency motor so as to drive the primary crushing unit and the secondary crushing unit to do differential relative motion, and the screening unit is used for returning substandard materials to the primary crushing unit to be crushed again. Multi-stage differential crushing and intelligent closed-loop control are adopted, airflow separation and magnetic separation impurity removal are combined, efficient and energy-saving production is achieved through segmented melting and plasticizing, and the treatment efficiency and the purity of a finished product are improved through an automatic system.

The invention relates to the technical field of environmental protection data processing, and particularly discloses an intelligent environmental protection data processing method and system based on the Internet of Things. A hyperspectral camera and a low-power microwave sensor are used for synchronously obtaining a chemical component hyperspectral image and an internal structure microwave response signal of a waste material; further introducing a deep learning algorithm to extract chemical component characteristics and internal physical structure characteristics of the waste materials, and performing deep interactive joint perception on the chemical component characteristics and the internal physical structure characteristics of the waste materials to realize joint characterization of the comprehensive state of the waste materials. And on the basis, adaptive matching of a microwave cracking mode and optimal control of cracking process parameters are carried out. According to the method, the self-adaptive regulation and control of the microwave cracking process can be realized through the integrity and deep cognition of the state of the components of the waste materials, and the intelligent level and the recycling efficiency of the microwave cracking of the waste are effectively improved.

The invention relates to the field of pipe machining, in particular to a round pipe cut-off machine which comprises a feeding frame, a cutting table, a discharging frame, waste material bearing tables, a feeding and discharging mechanism, a laser cutting mechanism, a rotary driving mechanism, a waste material discharging mechanism and the like, the feeding frame and the discharging frame are arranged on the two sides of the cutting table, and the waste material bearing tables are arranged at the two ends of the cutting table; the laser cutting mechanism can synchronously cut the two ends of a round pipe, the rotary driving mechanism can drive the round pipe to rotate, the feeding and discharging mechanism can achieve feeding and discharging of the round pipe, the waste discharging mechanism can treat waste, and the device further comprises a limiting mechanism, a waste conveying mechanism and the like and is provided with corresponding specific structure settings. The effects of achieving automatic cutting-off machining of the large round pipe and improving the machining efficiency and quality are achieved.