296 results about "Material recovery" patented technology

The invention discloses a recovery device and a recovery method for a photovoltaic multi-layer stacked assembly. The recovery device comprises a dismounting unit, a pyrolysis unit and a waste gas treatment unit which are arranged in sequence, the pyrolysis unit comprises a tunnel kiln, a bearing assembly and a conveying assembly. The recycling method comprises the steps that S1, the disassembling unit is used for disassembling, and the frame is stripped; s2, the photovoltaic multi-layer laminated assembly is sent to a pyrolysis unit for pyrolysis, and a glue film layer in the photovoltaic multi-layer laminated assembly is removed; and S3, the waste gas is discharged after being treated. By means of the innovative disassembling system, the multi-plate stacking tunnel kiln pyrolysis scheme and the multi-stage waste gas treatment system, the industrial production capacity of treating 1-3 tons of photovoltaic panels per hour can be achieved, the pyrolysis effect is good, the silicon material recovery rate can reach 98.5% or above, energy consumption is low, and the tail gas emission index is superior to the national standard by 50% or above.

The invention discloses an AGV-six-degree-of-freedom mechanical arm operating system and method based on double-vision fusion, the system comprises a control system and a six-degree-of-freedom mechanical arm, and the control system comprises a master control unit, a slave control unit and a dynamic error compensation module; the method comprises the steps of AGV autonomous navigation and material transfer, cross-station accurate docking and dynamic error compensation, high-precision biological medicine operation under double-vision fusion guidance, and material recovery and circulation. According to the invention, through dual-vision dynamic fusion of eyes outside the hand and eyes on the hand, adaptive switching from global coarse positioning to local fine positioning is realized; due to the integrated design of the AGV and the six-degree-of-freedom mechanical arm, the operation flexibility is greatly improved; an extended Kalman filtering dynamic error compensation algorithm is innovatively adopted, so that the comprehensive error of the AGV, the mechanical arm and the visual system can be corrected in real time; and by combining with a double-layer distributed control architecture, the system realizes multi-task intelligent scheduling and modular collaboration.

The invention discloses a waste polyurethane material recovery method and a preparation method of a polyurethane product, and belongs to the technical field of waste polyurethane material recovery and reutilization. The recovery method comprises the following steps: a powder preparation stage: crushing a waste polyurethane material by using crushing equipment to obtain polyurethane powder; a premixed liquid preparation stage: mixing polyurethane powder with a degradation agent, a catalyst and a cosolvent in proportion, and uniformly mixing through stirring equipment to obtain a premixed liquid with a certain powder content; in the degradation stage, equipment with a mechanical shearing and extruding function is used for grinding, extruding and shearing the premixed liquid, the reaction process is carried out within a set temperature range, and degradation mixed liquid of the polyurethane material is obtained after the reaction is completed. In the preparation method of the polyurethane product, a part of or all of the polyol raw material adopts a degradation mixed solution. According to the method, the degradation process is low in reagent consumption, low in temperature and short in time, does not need gas protection, and does not generate toxic substances such as aromatic amine, and the obtained high-performance heterogeneous polyhydric alcohol can be directly used for preparing polyurethane products without any post-treatment process.

The invention belongs to the technical field of material recovery, and particularly discloses a regeneration method of a waste lithium iron phosphate battery positive electrode material, a lithium ion battery positive plate prepared from regenerated lithium iron phosphate powder and a lithium ion battery. Waste lithium iron phosphate powder is uniformly mixed with uric acid and a lithium source, and the mixture is subjected to annealing and annealing treatment in an inert atmosphere, so that structure repair and performance upgrading of a failure material are realized. Uric acid serves as a reducing agent and a carbon-nitrogen source at the same time in the process, Fe < 3 + > is effectively reduced through thermal decomposition of the uric acid, anti-position defects are reduced, a uniform nitrogen-doped carbon coating layer is synchronously formed on the surfaces of particles, and the conductivity and the ion diffusion rate of the material are remarkably improved. The method is short in process flow and environment-friendly, and does not need to use strong acid and strong alkali. The regenerated lithium iron phosphate material has excellent electrochemical performance, the capacity retention rate reaches 91.22% after 500 times of circulation under the multiplying power of 0.5 C, the capacity retention rate is far superior to that of a commercial material, and an effective way is provided for high-valued recovery of waste lithium iron phosphate.

The invention relates to the technical field of automatic material treatment, in particular to an intelligent material treatment system and method.The intelligent material treatment system comprises a multi-floor treatment unit, a drying unit, a gas-solid separation unit, a conveying unit, a material mixing unit and an intelligent control unit; the multi-floor treatment unit is divided according to the functions of third-floor pretreatment, second-floor sanding and first-floor temporary storage and is seamlessly connected through a pipeline; the intelligent control unit adopts an MCGSPRO industrial control module and is provided with functional modules such as a layered operation interface and a parameter monitoring interface, so that full-process management and control are realized; the gas-solid separation unit adopts a cyclone separator and a dust remover for secondary purification, and the conveying unit comprises a quantitative hopper, so that the material recovery and quantification precision is guaranteed. The method comprises the five steps of pretreatment on the third floor, sanding treatment on the second floor, temporary storage and conveying on the first floor, drying and gas-solid separation and quantitative mixing. According to the scheme, the problems that a traditional system is poor in multi-floor cooperation, insufficient in sanding flexibility, low in intelligence and the like are solved, and the material recovery rate and the product consistency are remarkably improved.

The invention discloses a carbon fiber composite material recovery device and a control method thereof. The carbon fiber composite material recovery device comprises a reaction container, a microwave radiation assembly, a monitoring assembly, a shell and a control system, the reaction container is used for containing a carbon fiber composite material and a treating fluid, and the microwave radiation assembly is used for providing microwave radiation energy for the carbon fiber composite material in the reaction container; the monitoring assembly is used for monitoring reaction parameters in the reaction container in real time, a shielding layer is arranged on the inner wall of the shell and used for shielding microwave radiation generated by the microwave radiation assembly, and the control system is used for adjusting the output power of the microwave radiation assembly according to the monitored reaction parameters. According to the invention, the microwave absorption capability of carbon fibers in the carbon fiber composite material is utilized, degradation reaction energy is directly provided for the carbon fiber composite material in a targeted manner in a microwave radiation manner, the degradation liquid in the whole reaction container does not need to be heated, the energy consumption cost is low, and the reaction time is high.

Belonging to the technical field of fine chemical product separation and purification, the invention discloses a beta-bromophenylethane rectification purification process, which comprises the steps of system negative pressure pretreatment, falling film evaporation directional separation, structured packing layer gas-liquid mass transfer, precise reflux ratio regulation and control, segmented collection (front fraction-qualified product), and residual liquid treatment and system circulation. According to the process, the negative pressure of a system is stabilized at 800-1200 Pa, the material temperature of a falling film evaporation discharging end is controlled at 125-135 DEG C, the feeding flow is stabilized at 1.8-2.2 m / h, the reflux ratio is regulated and controlled at 0.8: 1-1.2: 1, and the process realizes efficient purification of beta-bromopheny ethane through precise negative pressure control, synergistic linkage of falling film evaporation and a rectifying tower, segmented material collection and a circular treatment mechanism, so that the process is suitable for industrial production of beta-bromopheny ethane. According to the method, the purity of beta-bromopheny ethane can stably reach 99.5% or above, the material recovery rate is increased to 92% or above, energy consumption is reduced by 15-20% compared with that of a traditional process, material thermal decomposition loss is avoided, and the method is suitable for industrial large-scale production.

The invention relates to the field of paper diaper processing, and discloses a flexible material cutting mechanism for paper diaper processing, comprising a processing table, supporting legs, a collecting bin, a stacking bin and a handle; the device further comprises a fixed shearing unit arranged on the machining table, the extrusion assembly is driven by the driving assembly to ascend and descend, the flexible water-absorbing cloth in the stacking bin is pressed, the flexible water-absorbing cloth in the stacking bin is extruded and compressed, and in the process that the flexible water-absorbing material recovers deformation, the flexible water-absorbing cloth in the stacking bin is extruded and compressed. The shearing assembly can cut the next flexible water-absorbing cloth, then the cloth is pushed into the stacking bin, the flexible water-absorbing cloth is pressed by the extrusion assembly, and the operation is repeated, so that more cut flexible water-absorbing cloth can be placed in the stacking bin, and the situation that a few pieces of flexible water-absorbing cloth cannot be placed in the stacking bin due to fluffy flexible water-absorbing cloth is avoided; in the prior art, the machine needs to be shut down to pour out the flexible water-absorbing cloth and then the machine is started for cutting, and a large amount of manufacturing time is wasted.

The present application relates to a kind of judgment method and processing method of blast furnace suspension material position, the judgment method of blast furnace suspension material position is used to judge the position of blast furnace suspension material, the processing method of blast furnace suspension material position, including if upper suspension material control wind speed and increase the coke of maintaining material surface shape, " sit material " by different ways is selected according to different suspension material position, quantitative calculation supplementary net coke weight, determine the distribution of net coke increase way.The present application has the advantages that: different furnace condition recovery method, parameter setting rule, coke adding method are invented for different suspension material position, improve the recovery speed after blast furnace suspension material;In upper suspension material, maintaining material surface shape can speed up subsequent wind process, reduce the possibility of secondary collapse, slide material accident;According to different suspension material position, different ways are selected to reduce wind " sit material ", according to different suspension material position, corresponding wind reduction method is adopted, can as far as possible speed up furnace condition recovery process, realize the optimization of suspension material recovery process.

This invention provides a composite magnesium-iron modified biochar and its method for purifying industrial wastewater, belonging to the technical field of functional materials for water treatment. The composite biochar of this invention uses porous biochar as a substrate, and through bimetallic impregnation, in-situ co-precipitation nucleation with pH control, and programmed temperature calcination, a composite crystalline phase of magnesium-iron layered bimetallic oxide and magnesium-iron spinel is anchored in-situ on its surface and internal pores. This material exhibits excellent magnetic field response characteristics and abundant bimetallic active sites. When added to composite wastewater, the bimetallic synergistic mechanism enables one-step simultaneous adsorption and degradation of COD, ammonia nitrogen, and total phosphorus; after the reaction, only an external magnetic field is needed to quickly achieve solid-liquid separation. This invention completely solves the problem of powder material recovery, and is resistant to desorption and regeneration, exhibiting excellent long-term recycling performance.

The present application relates to a tobacco loose detection equipment technical field, especially to a kind of tobacco loose after moisture processing degree of detection device of stretching degree.Its technical scheme includes the detection device of checking tobacco, also includes: setting in the detection device in order in turn material taking conveying line, material distributing vibration disc, material conveying line, detection square cover and return material conveying line.The present application is by material taking conveying line, material distributing vibration disc, material conveying line, detection square cover, return material conveying line and industrial camera etc.Structure design, by image recognition technology to the light transmission of tobacco is analyzed, the stretching degree of tobacco is converted into the quantization index of gray value area area ratio, solve the problem of strong subjectivity and poor consistency caused by relying on artificial sense of smell in prior art evaluation.At the same time, it also realizes the automatic extraction, dispersion, image acquisition and material recovery of tobacco sample.The whole detection process does not need manual intervention, significantly improves the detection efficiency.

The present invention provides a method for stripping a composite by immersing the composite in a stripping solution, wherein the composite comprises a metal substrate and a coating applied to one or both sides of the metal substrate, wherein the coating comprises a polymeric binder, and wherein the polymeric binder comprises an aqueous copolymer. The use of a stripping solution comprising an alkali metal phosphate allows for a complete stripping of the composite in an efficient and extremely fast manner. Furthermore, the stripping method disclosed herein avoids complex separation procedures, contamination and corrosion of the metal substrate, and enables excellent material recovery. An application of the method for stripping an electrode of a battery is disclosed herein.

The utility model discloses scratch-resistant fabric coating equipment which comprises a feeding assembly, a coating assembly, a coating assembly and a receiving assembly, the upper end of the feeding assembly is fixedly connected with the coating assembly, the upper end of the coating assembly is fixedly connected with the coating assembly, the upper end of the coating assembly is fixedly connected with the receiving assembly, and the scratch-resistant fabric coating equipment is characterized by further comprising the feeding assembly; the upper end of the feeding frame is fixedly connected with the coating material recycling frame; the material wheel is rotationally connected to the upper end of the feeding frame; the display controller is fixedly connected to the left end of the feeding frame; the first material guiding wheel is also rotationally connected to the upper end of the feeding frame; the second material guide roller is rotationally connected to the lower end of the feeding frame and is arranged at the lower end of the first material guide roller; and by arranging the coating assembly capable of recycling redundant coating when the fabric is coated, the device can recycle the redundant coating when the fabric is coated, and waste is avoided.

The utility model relates to a material recovery device which is characterized in that when a negative electrode material needs to be recovered in the actual negative electrode material processing process, a vacuum feeding machine can be operated, the negative electrode material is collected by a material suction pipeline of the vacuum feeding machine, and the negative electrode material is sucked into the vacuum feeding machine through the material suction pipeline; then the feeding port of the ton bag penetrates into the position between the feeding barrel and the clamping ring, the linear driving part is operated to drive the clamping ring to ascend through the lifting plate, the clamping ring and the fixing ring are matched with each other to clamp the feeding port of the ton bag, and then a valve in the vacuum feeding machine is operated to clamp the feeding port of the ton bag. The negative electrode material in the vacuum feeding machine enters the ton bag through the feeding port of the ton bag to be recycled, then the clamping ring is driven to descend, and the ton bag is taken out, so that the negative electrode material can be better conveyed, flying dust is reduced, material loss is avoided, the processing environment is prevented from being polluted, and the health of operators is prevented from being affected.

The utility model relates to the technical field of rim charge recovery devices, and discloses a plastic film rim charge crushing and recovering mechanism which comprises a bottom plate, the upper surface of the bottom plate is fixedly connected with a supporting frame, the outer wall of the supporting frame is fixedly connected with a first motor, and the output end of the first motor is fixedly connected with a first pulley. A belt is arranged on the outer wall of the first pulley, a second pulley is arranged on the outer wall of the belt, a first supporting rod is fixedly connected to the interior of the second pulley, smashing blades are fixedly connected to the outer wall of the first supporting rod, and a supporting column is fixedly connected to the upper surface of the bottom plate. According to the leftover material crushing device, the first motor drives the first pulley to rotate, then the first pulley drives the second pulley to rotate through the belt, then the first supporting rod is driven to rotate in the supporting frame, then the first supporting rod drives the crushing blades to rotate, leftover materials can be further crushed, and the effect of efficiently and finely crushing the leftover materials is achieved.

The present invention provides a method for stripping a composite by immersing the composite in a stripping solution, wherein the composite comprises a metal substrate and a coating applied to one or both sides of the metal substrate, wherein the coating comprises a polymeric binder, and wherein the polymeric binder comprises an aqueous copolymer. The use of a stripping solution comprising a weak base allows for a complete stripping of the composite in an efficient and extremely fast manner. Furthermore, the stripping method disclosed herein avoids complex separation procedures, contamination and corrosion of the metal substrate, and enables excellent material recovery. An application of the method for stripping an electrode of a battery is disclosed herein.

The utility model discloses a lubricating oil liquid production excess material recovery device, and belongs to the technical field of lubricating oil production. The utility model relates to a lubricating oil liquid production excess material recovery device, which comprises a recovery tank and a cover body arranged at the top of the recovery tank, and further comprises a scraping plate arranged below the cover body and attached to the inner wall of the recovery tank; the cover body is provided with a driving part for driving the spline shaft to rotate, the spline shaft is longitudinally provided with a sleeve in a sliding manner, the scraping plate is connected with the sleeve, the cover body is provided with a connecting part, and when the driving part drives the spline shaft to rotate, the connecting part is connected with the sleeve. The connecting part drives the sleeve to slide along the spline shaft; the driving part drives the spline shaft to rotate, meanwhile, the connecting part drives the sleeve to longitudinally slide along the spline shaft, then the scraping plate is driven to rotate and longitudinally move, excess materials attached to the inner wall of the recycling tank can be effectively scraped, and the utilization rate of the excess materials is increased.

The utility model discloses a medium density fiberboard processing wood chip screening machine which comprises a base, the base is connected with a screening assembly used for screening raw materials for medium density fiberboard processing wood chips, and the screening assembly comprises a screening piece which is installed on the base and used for screening out impurities in raw material mixtures, the screening part comprises a rotating cylinder rotationally connected to the right end of the upper side of the base, a filtering cylinder used for filtering impurities is installed on the left side of the rotating cylinder, and a recycling box used for receiving the impurities is placed on the portion, corresponding to the lower side of the filtering cylinder, of the upper side of the base. According to the wood chip screening machine for medium-density fiberboard processing, the air cylinder assembly is matched with the push plate, materials retained in the rotating cylinder and the filter cylinder are guided out, the material recovery rate is increased, and the water pump, the three-way valve, the corrugated pipe, the water spraying ring, the branch pipe and the water spraying strip are matched with one another, so that the inner wall and the outer surface of the filter cylinder are cleaned.

The invention provides a recovery device for a step-by-step electrochemical synthesis charged material, and belongs to the technical field of electrochemistry, the recovery device comprises a recovery cavity, a frequency conversion physical separation mechanism and a heat exchanger, and the frequency conversion physical separation mechanism is located in the recovery cavity; a feed port, an air inlet and a discharge port are formed in the recovery cavity, and the feed port is used for inputting a charged material; the variable-frequency physical separation mechanism is used for separating a capacitive electrode material and an electrolyte in the charged material to obtain a recovered capacitive electrode material and an electrolyte, a liquid collecting tank is arranged below the variable-frequency physical separation mechanism, and a liquid outlet pipe is arranged at the bottom of the liquid collecting tank; the heat exchanger provides heat energy. Through the design that the closed recovery cavity is adopted and atmosphere gas or reaction gas is input into the closed recovery cavity, the problem of introduction of external impurities can be effectively solved, and meanwhile, internal gas components can be accurately controlled, so that the introduction of a side reaction process is avoided.

An apparatus for destroying electronic data and enabling selective material recovery is provided. A first stage shreds electronic waste into particles no greater than 20 mm by 20 mm. A second stage separates metal from non-metal using a belt-driven magnetic separator in which a continuous belt carries the particles across a magnet assembly; metal is removed to a first bin. A third stage shears the remaining non-metal to particles no greater than 2 mm by 2 mm, which pass a screen into a second bin. In certain embodiments, a vibratory feed ramp meters flow to the belt separator, and dust collection may be provided by a vacuum system and, optionally, a cyclone separator coupled by gasketed clamps.

The utility model discloses a stretch film waste recovery device for a stretch film machine, and relates to the technical field of waste recovery. The scrap edge recycling device comprises an air suction type scrap edge recycling machine, one end of the air suction type scrap edge recycling machine is fixedly connected with an L-shaped guide pipe, and the outlet end of the L-shaped guide pipe is provided with a winding mechanism. The air suction type rim charge recycling machine can efficiently collect stretch film waste on a production line, the L-shaped guide pipe serves as a waste conveying channel and can smoothly guide the waste collected by the air suction type rim charge recycling machine to the winding mechanism, the winding mechanism can neatly wind the waste, follow-up storage and treatment are facilitated, and the production efficiency is improved. Automatic, efficient and stable recovery of the stretch film waste is achieved, the cleanliness and production efficiency of a production line are improved, energy consumption and abrasion of a fan are reduced, environmental wind noise is reduced, and a quieter working environment is provided for workers.

The utility model relates to the related technical field of wastewater treatment, especially lithium carbonate production's wastewater treatment device, including processing box, sealing cover, baffle, adjusting pool and sedimentation tank, first feeding pipe, second feeding pipe, wastewater inlet pipe, conveying pipeline, stirring component, filter assembly, sludge pump, surplus material recovery unit and controller. Lithium carbonate production's wastewater treatment device of the utility model, the untreated wastewater first enters the adjusting pool, and here through the improvement water quality of putting in medicament, stirring and adjusting pH value, then through conveying pipeline and is transported to the sedimentation tank, adds coagulant and coagulation aid in the sedimentation tank and promotes suspended solid to deposit, finally separates out solid and liquid through filter assembly and sludge pump, realizes the efficient treatment of wastewater and the recovery of solid salt.

The application discloses a lithium battery recycling device and relates to the technical field of lithium battery recycling. The lithium battery recycling device comprises a liquid storage tank, a net and a rotating liquid spraying mechanism. The net is arranged in the liquid storage tank. The liquid outlet end of a first liquid pump is communicated with a liquid spraying pipe. The circumferential surface of the liquid spraying pipe is provided with a liquid spraying opening. A driving motor is connected with the liquid spraying pipe. The liquid spraying pipe is arranged below the net. The driving motor is used for driving the liquid spraying pipe to rotate around the axial direction of the liquid spraying pipe. The impact liquid sprayed from the liquid spraying pipe impacts the pole piece fragments in the net and drives the pole piece fragments to move in a preset direction. The pole piece fragments are simultaneously separated into current collectors and battery materials. The preset direction is arranged perpendicularly to the axial direction of the liquid spraying pipe. The lithium battery recycling device can effectively improve the separation efficiency, shorten the soaking time, prevent the pole piece fragments from being cut, avoid the loss of battery materials and improve the battery material recovery rate.

The utility model discloses a kind of high-efficiency catalyst material grading equipment, it is related to catalyst material processing technical field.The utility model includes equipment frame, and grading box is movably connected in the equipment frame inner chamber, and grading box one side is equipped with discharge port.The utility model is equipped with discharge assembly, using the linkage structure of slide bar, receiving block, sealing plate and extruding block, the automatic switching of grading box between screening and discharging state is realized, when screening, spring pushes receiving block to make sealing plate tightly clamped discharge port, ensure sealing, after screening is completed, cylinder drives grading box to rotate, extruding block compreses receiving block to drive sealing plate to separate discharge port, realize automatic discharge, this design cleverly uses equipment self-motion as power source, without additional driving device, both solve the problem of material leakage in traditional vibrating screening, and also ensure the accurate opening and closing of discharge port through mechanical linkage, significantly improve material recovery rate and equipment reliability.

The utility model belongs to the field of leftover material recovery, and particularly relates to a leftover material cutting device for key processing, which comprises a working table, a conveying mechanism arranged on the working table and used for conveying materials, a cutting mechanism arranged on the working table and used for cutting the conveyed materials, and a cutting mechanism arranged on the working table and used for cutting the conveyed materials. The storage mechanism is used for temporarily storing the cut-off crushed materials, and the collecting box is placed under the storage mechanism and used for collecting the cut-off crushed materials; through the structural design of a storage frame, a fixing block, a guide rod and a supporting plate, when the collecting box is full of crushed materials, the supporting plate can be operated to be matched with the storage frame and the workbench to form a temporary storage bin used for temporarily storing a small amount of crushed materials, so that workers can move out the collecting box for centralized treatment under the condition that production is not interrupted, and the working efficiency is improved. And the flexibility of the production process is improved.

The utility model is suitable for the technical field of preservative film recovery devices, and provides a preservative film reel excess material recovery device which comprises a machine base, two sets of connecting mechanisms distributed in a mirror image mode are arranged at the upper end of the machine base, the connecting mechanisms are used for installing a preservative film reel on the machine base, and a driving mechanism is installed on the machine base. The driving mechanism is used for driving the connecting mechanism and the preservative film reel to rotate. The connecting mechanism comprises a column body, the column body is arranged on one side of the machine base, the interior of the column body is hollow, a plurality of penetrating openings distributed in a circumferential array mode are formed in the outer side of the column body, the penetrating openings communicate with an inner cavity of the column body, a plurality of pressing wheels are arranged in the column body, and a servo motor drives a shaft sleeve to rotate so that the column body, the pressing wheels and a preservative film winding drum can be driven to rotate synchronously; the rotation angle of the preservative film reel is fixed, and the device can assist a worker in rotating the preservative film reel and releasing the preservative film with a certain length. The device can replace a worker to fix and rotate the preservative film reel, and the worker only needs to cut the preservative film.

The present application relates to sea cucumber flower super micro powder processing technical field, specifically to the sea cucumber flower super micro powder crushing-precision compression molding device and process with anti-overflow material recovery structure, including the crushing host and cyclone separator for super micro powder crushing and separating powder of sea cucumber food, the lower part of cyclone separator is provided with a feeding cylinder, the feeding is carried out through spiral blade rod, the feeding end of feeding cylinder is provided with a conveying table outside, a tablet press is arranged in the circulating feeding path of conveying table, and the food is circulated and conveyed to be pressed into tablets.The present application is provided with a tablet press composed of a plurality of upper punches, a plurality of lower punches and a plurality of middle molds, the upper punch outer wall is fixedly sleeved with a sealing ring sleeve for sealing the upper end of the middle mold, a cavity is formed in the center shaft of the lower punch, and a plurality of air holes are formed in the top side wall and connected with an air pump, so that a negative pressure suction structure is formed in the middle mold cavity, the overflowed super micro powder in the compression process is recycled in real time, and the waste of raw materials and the pollution of equipment are avoided.

The application provides a material recovery system based on mask screening, which comprises: an original material preprocessing unit for preprocessing original multimedia material to generate standardized preprocessing material; a material feature extraction unit for performing feature extraction processing on the standardized preprocessing material to generate a material feature vector; a material index construction unit for performing index construction processing on the material feature vector to generate a material index library; a recovery condition analysis unit for performing semantic analysis processing on user input recovery conditions to generate a structured recovery instruction; a material preliminary recovery unit for performing retrieval processing on the material index library according to the structured recovery instruction to generate a preliminary recovery material set; a Mask generation unit for performing key information extraction processing on the preliminary recovery material set to generate a Mask template; a similarity calculation unit for each material in the preliminary recovery material set to generate a material similarity score list; and a Mask screening unit for performing screening processing according to a set similarity threshold to generate a final recovery material set.

The utility model relates to resource recovery equipment technical field discloses a kind of chemical raw material pressure material recovery devices, including lift frame, lifting plate, the lifting plate is fixedly connected in the output end of lift frame, the rear side outer wall of lift frame is fixedly connected with bearing bracket, the front side outer wall of bearing bracket is fixedly connected with drive machine, separation mechanism is provided on bearing bracket, auxiliary mechanism is provided on bearing bracket, the separation mechanism includes spur gear, the spur gear is fixedly connected in the output end of drive machine by shaft coupling, the side surface outer wall of spur gear is contacted with gear ring, the side surface inner wall of gear ring is fixedly connected with supporting cylinder, vertical groove is set up in the top inner wall of supporting cylinder. In the utility model, by adopting the double solid-liquid separation mode of extrusion and centrifugal combination, extrusion disc is driven by lifting plate to exert pressure on residual material in supporting cylinder, while drive machine drives supporting cylinder to rotate by spur gear and gear ring to generate centrifugal force.

The invention discloses an organic waste gas solvent recovery and dehydration device and a dehydration method, and belongs to the technical field of organic waste gas treatment.The organic waste gas solvent recovery and dehydration device comprises two collaborative dehydration tanks, a rough solvent tank, a phase splitting tank, a wastewater buffer tank, a two-stage condenser, a hot oil heat exchanger, a regeneration fan, a matched oxygen analyzer, a pressure gauge, a thermometer and a liquidometer, and the components are communicated through pipelines provided with stop valves; the two-stage condenser is respectively connected with a cooling water source and a freezing water source to form a circulation loop; and the hot oil heat exchanger is connected with a heat-conducting oil circulation system. According to the method, continuous operation is achieved through two-tank inert gas replacement, raw material conveying adsorption, material backflow switching, residual material recovery, safety detection, desorption, product separation and cooling reset. The core technical problems that the dehydration process is interrupted, the safety and stability are poor, the dehydration efficiency and the solvent recovery rate are low, and the existing organic waste gas solvent recovery dehydration device is difficult to adapt to industrial continuous production in the printing and packaging industry due to the fact that adsorption and regeneration processes cannot be synchronously carried out are solved.