43results about How to "Solve recycling" patented technology

The invention discloses an independent photovoltaic storage battery grouping management method, and belongs to the technical field of new energy power generation control control. The invention relates to an independent photovoltaic storage battery system, and the main components of the independent photovoltaic storage battery system comprise a photovoltaic battery, a storage battery, a power transformer, a load and the like. The independent photovoltaic storage battery grouping management method provided by the invention comprises the steps of collecting the limited photovoltaic electrical energy in a period of time to charge for a storage battery group, discharging as less as possible before the charging is full so as to enable the storage battery group to achieve a fullly charged state quickly, and circularly implementing the policy aiming at different groups. The independent photovoltaic storage battery grouping management method provided by the invention is suitable for the occasion that the photovoltaic electrical energy is continuously scant, so that each storage battery group breaks away from a long-term underfilling state, the duty-cycle operation is avoided under low charge state, and the service life of a storage battery is prolonged.

The invention relates to the field of geotechnical engineering model tests, and aims to provide a three-dimensional visualization testing device and method for particle seepage migration based on a trace method. A model casing of the device comprises an upstream liquid level tank, a downstream liquid outlet tank and a model landfill tank; transparent soil particles doped with trace particles inside the model landfill tank is prepared into a dam foundation model, and a dam foundation model is piled and formed at the upper part; and a water bath circulating system consists of a circulating pump,a water bath box, a buffer tank and a plurality of pipelines. The device also comprises the water bath circulating system consisting of the circulating pump, the water bath box, the buffer tank and the pipelines, and a loop is formed by the model box, the buffer tank and the water bath box; and at least two groups of CCD cameras connected to a computer through signal lines respectively are arranged on two sides of the model box respectively. The device effectively solves the problems that a traditional trace particle method is difficult to apply with transparent soil model tests, the occurrence position of particle migration is difficult to capture, the hole fluid refractive index and the glutinousness can change along with temperature and a hole fluid is circulated.

The invention discloses a method for selectively enriching scandium from Bayer process red mud. The method is characterized in that the Bayer process red mud is used as a raw material, the red mud isfully wet by adding an appropriate amount of water, the red mud is sulphated by using concentrated sulfuric acid and is then calcined at a high temperature, the solid calcined product is mechanicallyactivated by grinding and is then subjected to four-stage water immersion and washing, so that a scandium-rich leaching solution, scandium-rich washing liquid and low-alkali iron-rich slag are obtained. The method enables most of scandium to be leached, but the leaching rates of impurity iron and aluminum are low, and silicon and titanium are not leached substantially, so that the formation of colloidal silicate in the leaching solution is avoided, and the selective absorption and extraction of the scandium in the subsequent leaching solution are facilitated; the generated sulfur dioxide and sulfur trioxide can be reused in the preparation of sulfuric acid, so that the production of a large amount of waste acid is avoided; the pH of the low-alkali iron-rich slag is close to neutral, and can be used in the industries such as iron making, adsorbents, ceramics, construction and the like, so that a new way is provided for the extraction of the scandium and the comprehensive utilization ofthe red mud.

The invention discloses an extrusion device and method for an oriented chopped carbon fiber reinforced thermoplastic composite, and belongs to the field of composite processing. A multifunctional stirring device is arranged in the middle of the interior of a melting chamber; the bottom of the melting chamber is connected to an extrusion chamber horizontally arranged left and right by a gate valve;a telescopic hydraulic cylinder which is horizontally arranged is located at the left side of the extrusion chamber; the right end of the telescopic hydraulic cylinder is connected to a first-stage sleeve piston; a second-stage sleeve piston is coaxially connected to the first-stage sleeve piston; a right end outlet of the extrusion cavity is coaxially connected and communicates with a tapered stepped pipe type nozzle; the interior of the tapered stepped pipe type nozzle is provided with multiple-stage tapered stepped pipes from left to right; and the inner diameters of pipelines of the tapered stepped pipes decrease in sequence from left to right, and the left and right lengths sequentially decrease from left to right. The extrusion device and method integrate the three processes of blanking, stirring and extruding, guide chopped carbon fiber yarns to be directionally arranged in a thermoplastic resin matrix in a material extrusion direction, and directly process the chopped carbon fiber yarns and thermoplastic resin matrix raw materials into continuous wires.

The invention relates to a preset self-adjusting full-positioning clamping device for automobile part drilling, which comprises a rack, a drilling auxiliary clamping device, a human-hand-simulated self-resetting reciprocating type cleaning mechanism and a detachable self-separation recovery device, a dust collection hole is formed in the middle of the upper wall of the rack, the human-hand-simulated self-resetting reciprocating type cleaning mechanism is arranged on the upper wall of the rack, and the detachable self-separation recovery device is arranged on the lower wall of the rack. The drilling auxiliary clamping devices are symmetrically arranged on the machine frame, and the detachable self-separation recycling device is arranged under the dust collecting holes. The invention belongs to the technical field of clamping devices for drilling parts, and particularly provides a clamping device for drilling parts by utilizing a dynamic characteristic principle, a principle of changing harm into benefit and a pre-reaction principle and by virtue of a magnetic field as compensation. According to the preset self-adjusting full-positioning clamping device for drilling the automobile parts, all-directional dead-corner-free self-adaptive attaching type clamping can be carried out on various types of automobile parts with uneven clamping faces under the condition that no positioning element or other sensors exist, the efficiency is high, and the automation degree is high.

The invention provides a coal-based electric power and chemical product coproduction process capable of realizing zero discharge of CO2. A new coal gasification process which uses CO2 instead of steam as a coal gasification agent is taken as the core; chemical production of chemical products such as methanol, acetic acid and the like, cogeneration by a gas turbine and a steam turbine, and output of CO used as a product are organically combined; and CO2 generated in combustion power generation, steam conversion and other procedures in the coproduction process is separated and enriched, and then is wholly conveyed to a gasifier and used as the coal gasification agent for cyclic utilization, thereby realizing zero discharge of CO2 in the whole process. The process integrally couples different sciences and different industries, solves the key technology that a large amount of greenhouse gas CO2 is discharged in the existing poly-generation process, and achieves the purposes of CO2 recycling and green energy source and chemical industry.

The invention discloses an antenna protection limiter structure. The antenna protection limiter structure comprises a protection limiter guide plate, a heat sink structure, an electromagnetic pump electrode, a recovery box, a lithium flow pipeline, a distribution box, a heating plate, a cooling medium in and out pipe, a heat sink cooling channel, a temperature measurement thermocouple, a heating wire, a connection screw and a side protection plate. According to the antenna protection limiter structure, quite high heat load in a vacuum chamber can be borne, the antenna main body structure can be prevented from being directly attached by high-energy particles in the vacuum chamber, a first wall material and plasma are prevented from mutually interacting to damage the operation environment of the vacuum chamber; re-circulation and tritium retention problems of deposition particles of a first wall can be effectively solved on the basis of circulation flow and renewable property of the liquid lithium first wall.

The invention discloses a method for loading an appearance-controllable bi-metal nano-composite material between a two-dimensional laminar material and a conductive polymer double carrier. The method comprises the following steps: step I, adding a bi-metal salt-containing solution into a two-dimensional laminar material-containing solution, so as to form a uniform solution; step II, adding conductive polymer monomer into the solution obtained in the step I; step III, removing unreacted monomer from the solution obtained in the step II, and washing with deionized water, so as to obtain the bi-metal nano-composite material. The method has the advantages that not only are the synthesis steps simple, but also the catalyst stability is high, separation for recycling is convenient, the service life of a catalyst is greatly prolonged, and the problems of high aggregation rate, short service life and low cyclic utilization efficiency of the conventional metal nano-catalyst in practical application are solved. More importantly, due to simple experiment parameter regulation, the appearance of the bi-metal nano-composite material can be controlled effectively, and the catalytic activity of the catalyst is further improved. Therefore, the purpose of using the catalyst efficiently is realized.

This invention relates to fuel oil absorption desulfuration nickel base non-crystal alloy absorption regeneration method, which makes water steam contact with the agent with one to ten litre water per hour per kilometer for half to three hours in temperature of 100 to 500 degrees and under pressure of the common one to the 0.5 Mpa. The method is suitable for activity deducing to the initial activity half or even lower agent and after regeneration, the agent can recover more than 90 úÑ to total or partly substitutes the fresh absorption agent.

The invention discloses an impinging stream type ionization high-temperature waste gas harm removal, separation, degradation and circulation treatment device. The device comprises a separation bottom supporting seat, a separation tower supporting frame, a clash type negative pressure separation and degradation tower, an inertia type impinging stream mixing periodic swinging box, an adsorption type electrostatic state dust cleaning and storage box, a multifunctional integrated waste gas degradation water storage box, an ultrasonic waste water circulation purification and harm removal box, an impinging stream waste gas atomization cooling adsorption and degradation mechanism, a circulating cooling waste water ultrasonic purification mixing oil reduction mechanism, an all-dimensional electrostatic adsorption dust storage treatment mechanism, a negative pressure absorption waste gas filtering zero emission mechanism, a spraying covering cooling dust removal cooling mechanism and a temperature difference type power generation heat collection cooling emission mechanism. The invention belongs to the technical field of industrial waste gas treatment, and particularly provides an impinging stream type ionization high-temperature waste gas harm removal, separation, degradation and circulation treatment device which integrates separation and degradation of harmful substances contained in high-temperature waste gas and adsorbs and filters dust in all directions.

The invention discloses an integrated air suspension air supply system. The system comprises an electric air pump device, internal pipelines, an ECU, a pressure sensor and an electromagnetic valve group which are integrated; the electric air pump device is driven by a motor; the electric air pump device is connected with an air storage tank through an internal pipeline I; the electric air pump device is connected with the electromagnetic valve group through an internal pipeline II; the electromagnetic valve group is connected with an air spring through an internal pipeline III; the electric air pump device is connected with external atmosphere through an internal pipeline IV; the electric air pump device and the electromagnetic valve group are both connected with the ECU; the ECU is provided with a connector; the electromagnetic valve group is provided with an electromagnetic valve group valve port, an air path interface and an air filter interface; and the air filter interface is connected with an air filter. By adopting integrated closed-loop control, energy consumption can be reduced, higher system availability and better performance are ensured, cyclic use under various conditions is ensured, moisture impurities are prevented from influencing system work, and the system is compact in structure, small in size and weight, light in weight, energy-saving and environment-friendly.

The invention discloses an additive manufacturing method for a plastic powder shape-following staircase temperature bed. The method comprises the steps that a powder is added, the powder is scrapped,first heating is carried out, selection domain for second heating is carried out, laser sintering is carried out, one layer is dropped, and then the steps are repeated. The additive manufacturing system stops all the heating of the plastic powder; a temperature of a molding cylinder drops; and after sintering and melting, plastic powder is cooled and solidified, and a plastic products is formed. The technical defect of plastic powder degradation or excessive cross-linking during the forming process of a existing laser sintered plastic powder is overcome, the reduction of the physical propertyof the plastic powder except a sintered product in the molding cylinder due to a high temperature is prevented, recycling is carried out by avoiding being abandoned or avoiding adding a high proportion of a new powder, so that the cost of the plastic powder of the sintered plastic products is greatly reduced.

The invention relates to a near-zero-emission and CO2 recycling type fossil energy utilization method. The method is characterized in that coal gasification, power generation and production of chemicals are coupled, wherein the logistics and energy in the whole coupling process are integrated, namely, a certain volume of CO2 which is continuously exhausted is extracted is input to a power generation system to realize recycling; water or steam produced by power generation is treated as fluidizing gas for gasification reaction; the rest CO2 is treated as the chemical raw material for producing 1, 3, 5-sym-triazinetriol; and the chemical production of the 1, 3, 5-sym-triazinetriol chemical product and the power generation are organically combined, so that the recycling of CO2 and the completeutilization of C atoms can be completely realized, and as a result, the zero emission of CO2 is achieved. With the adoption of the method, the key problem that a large volume of room-temperature CO2is exhausted in an existing multi-co-production technology is solved; the purposes of CO2 recycling, green energy and chemical industry can be achieved; the CO2 and hydrogen can be effectively organically utilized; the near zero emission of SO2, NOX, particles and CO2 can be realized; and moreover, the H2 power generation risk is reduced, and the CO2 recycling is achieved.

The invention discloses a method and a system for continuously preparing polyoxymethylene dimethyl ether by utilizing an ionic liquid catalyst. The system mainly comprises two areas, i.e., a reaction area and a refining area. The method comprises the following steps: firstly, carrying out an acetalation reaction on methyl alcohol and concentrated formaldehyde in the presence of the ionic liquid catalyst so as to generate the polyoxymethylene dimethyl ether; and then, rectifying the polyoxymethylene dimethyl ether in the refining area. According to the method and the system which are disclosed by the invention, an aqueous solution of the polyoxymethylene dimethyl ether is taken as an initial reaction raw material on which the continuous acetalation reaction is carried out so as to prepare the polyoxymethylene dimethyl ether, so that compared with other industrial devices, the system and the method are simple in process, low in energy consumption, simple in catalyst separation due to the adoption of an extractive distillation mode and the like, high in separation efficiency and high in polyoxymethylene dimethyl ether purity. A novel tank reactor is adopted, so that the method and the system which are disclosed by the invention are suitable for large-scale industrial production.

The invention relates to a corrosive aluminum foil cleaning device, and particularly relates to a corrosive aluminum foil circulating water cleaning device. The corrosive aluminum foil circulating water cleaning device comprises a filter tank and a water storage tank which are arranged in parallel and located on the same horizontal plane at the same height, wherein a support is arranged on the side, parallel to the water storage tank, of the filter tank; and a cleaning box parallel to the filter tank and the water storage tank is arranged on the support. A water delivery pump enables pure water in the water storage tank to enter the cleaning box through a water outlet pipe, and then aluminum foil in a feeding port is flushed; when the pure water flushes the aluminum foil in the feeding port, power wheels on the left side and the right side enable an aluminum foil strip to be conveyed from left to right, and therefore the content of chloride ions on the surface of the aluminum foil strip is gradually flushed away; and the purity of the pure water closer to the right side is higher, the content of chloride ions on the surface of the aluminum foil strip is lower, the step-by-step andlayered flushing effect is better, and then the content of chloride ions on the surface of the aluminum foil is reduced to the minimum.

The invention discloses a preparation method of a photocatalytic material BiOBr / ZnSn(OH)6@carbon fiber cloth, and relates to a preparation method of a photocatalytic material. The invention aims to solve the technical problem that the existing photocatalytic material is difficult to recover. The method comprises the following steps: putting a carbon fiber cloth into a mixed solution of water, ethanol and acetone for ultrasonic treatment, soaking the carbon fiber cloth in aqua regia for 24 hours, washing, drying, preparing SnCl4.5H2O and ZnCl2 into a solution, adjusting the pH value, mixing thesolutions in an isopyknic manner, putting the carbon fiber cloth into the mixture, standing for 6 hours, taking out, washing and drying to obtain ZnSn(OH)6 carbon fiber cloth, dissolving Bi(NO3)3.5H2O, stirring and mixing with a bromine-containing salt solution, putting the ZnSn(OH)6 carbon fiber cloth into the mixed solution in a hydrothermal reaction kettle for reaction, and washing and dryingto obtain the BiOBr / ZnSn(OH)6 carbon fiber cloth. The preparation method is used in the field of photocatalysis.

A method of dehydrating 2-methylpyridine by coupling extraction and rectification operations includes the following steps: 1) mixing an extraction agent with a 2-methylpyridine / water solution to perform extraction; 2) allowing the mixture liquid in the step 1) to stand in a phase separation tank for phase separation, then layering the mixture to obtain a water phase being water and an organic phase being a mixture liquid of the 2-methylpyridine and the extraction agent; 3) preheating the organic phase to 50-60 DEG C, feeding the organic phase into a rectification column for separation, whereinthe extraction agent is withdrawn from the column top and the 2-methylpyridine is withdrawn from the column bottom. The method can prepare high-purity 2-methylpyridine and extraction agent just withone rectification column, solves the problem of influence on recycling use due to high water content of the 2-methylpyridine in a production process of 2-vinylpyridine, has good separation effect, islow in energy consumption and cost, has extensive application range, and is suitable for both batch rectification process and continuous rectification process.

The invention discloses an express delivery industry false picking preventing package box capable of being repeatedly used. The express delivery industry false picking preventing package box comprises a box body, a label plate, a fixed bonding plate, a top cover, a movable bonding plate, a strip-shaped code frame, a delivery note pasting plate, an inner cover, an interlayer, a dampproof layer and a buffering layer. The express delivery industry false picking preventing package box is characterized in that the box body is a rectangular box body, the label plate is arranged on the side face of the box body and used for a courier to number express deliveries, the label plate can be scrubbed, and the fixed bonding plate is fixed to the lower portion of the front side face of the box body; the top cover is connected with the rear edge of the box body, the top cover is provided with the rectangular strip-shaped code frame, and the movable bonding plate is connected to the front edge of the top cover; the inner cover is arranged below the top cover; the independent interlayer is arranged below the inner cover and covers an upper opening in the box body, and the interlayer is mainly used for preventing the tops of goods from being subjected to collisions; and the dampproof layer preventing the goods from getting damp is arranged on the inner edge of the box body, and the corrugated buffering layer protecting the goods against collisions is arranged on the inner side of the dampproof layer.

The invention discloses an encryption charging system of an electric vehicle shared charging pile. The system comprises a two-dimensional code, a charging mode selection interface, a charging consumption calculation module, a charging timing module, a charging current detection module, a power-on control module, a charging locking mechanism and a central control system. The charging method comprises the following steps that a charging gun head is inserted into a charging socket of an electric vehicle; the charging pile is authorized to obtain an identity of a user, any one of the charging modes of a charging mode selection interface is selected for charging, and the charging gun head is locked; the charging gun head is electrified to charge the electric vehicle, the charging time is recorded in real time, and a current of the charging gun head is monitored in real time; and the charging gun head is controlled to be unlocked, the charging gun head is powered off, and the next user shares and uses the charging gun head. According to the scheme, in the charging process, a condition that other people unplug the charging gun head to steal electricity to charge the electric vehicle is effectively avoided, and after the electric vehicle is charged, the charging gun head is automatically unlocked and powered off.

The invention relates to a cleaning device for corroded aluminum foil, in particular to a circulating water cleaning device for corroded aluminum foil. A circulating water cleaning device for corroded aluminum foil, comprising a filter box and a water storage tank arranged side by side and at the same height on the same level, a bracket is arranged on the side where the filter box and the water storage tank are juxtaposed, and the bracket is provided with a The filter box and the cleaning box are juxtaposed with the water storage tank. The water delivery pump brings the pure water in the water storage tank into the cleaning box through the outlet pipe, and then rinses the aluminum foil in the feed inlet. When the pure water rinses the aluminum foil in the feed inlet, the power wheels on the left and right sides make the aluminum foil The belt is conveyed from left to right, so that the chloride ion content on the surface of the aluminum foil belt is gradually washed away, and the purity of the pure water closer to the right is higher and the chloride ion content on the surface of the aluminum foil belt is lower, so that the level by level The rinsing effect is more effective, which in turn minimizes the chloride ion content on the surface of the aluminum foil.

The invention discloses a preparation method of sulfentrazone. The sulfentrazone is obtained from the reaction of triazolone aniline and methylsulfonate in the presence of a catalyst; the catalyst is a halogenated dimethyl sulfonium halide . The invention improves the reaction system, replaces methanesulfonyl chloride with stable and easy-to-storage methanesulfonyl chloride, avoids the use of highly corrosive methanesulfonyl chloride, triethylamine and pyridine, and does not generate salty wastewater , conducive to environmental protection. The amino compound is activated by a specific catalyst, so that side reactions are less, the amount of raw materials is less, and the yield and content are improved.

The invention discloses a method for selectively enriching scandium from Bayer process red mud. The method is characterized in that the Bayer process red mud is used as a raw material, the red mud isfully wet by adding an appropriate amount of water, the red mud is sulphated by using concentrated sulfuric acid and is then calcined at a high temperature, the solid calcined product is mechanicallyactivated by grinding and is then subjected to four-stage water immersion and washing, so that a scandium-rich leaching solution, scandium-rich washing liquid and low-alkali iron-rich slag are obtained. The method enables most of scandium to be leached, but the leaching rates of impurity iron and aluminum are low, and silicon and titanium are not leached substantially, so that the formation of colloidal silicate in the leaching solution is avoided, and the selective absorption and extraction of the scandium in the subsequent leaching solution are facilitated; the generated sulfur dioxide and sulfur trioxide can be reused in the preparation of sulfuric acid, so that the production of a large amount of waste acid is avoided; the pH of the low-alkali iron-rich slag is close to neutral, and can be used in the industries such as iron making, adsorbents, ceramics, construction and the like, so that a new way is provided for the extraction of the scandium and the comprehensive utilization ofthe red mud.

Provided are an emulsion liquid membrane for extracting copper and cyanide in cyanide waste water and a use method thereof.Raw materials are composed of an oil phase and a water phase, and the raw materials of the oil phase comprise an extraction carrier, a mass transfer modifying agent, a diluent and an emulsifying agent or comprise an extraction carrier, a mass transfer modifying agent, a stabilizer, a diluent and an emulsifying agent.The use method comprises the steps that the emulsion liquid membrane used for extracting copper and cyanide in the cyanide waste water is mixed with cyanide-containing waste water, mechanical stirring is conducted for dispersing and extracting, and standing is conducted for phase separation; 2, an enriched emulsion obtained after phase separation is conducted is demulsified, a regeneration oil phase and an enriched water phase are obtained, and copper and cyanide are recycled from the enriched water phase.By means of the use method, the accumulation problem of copper in minerals in cyanide leaching liquid in the cyanide gold leaching process is effectively solved, the recycling problem of cyanide waste liquid is also solved, and dual value of improving economic benefit and promoting environmental protection is achieved in the cyanide-containing waste water treatment process.

The invention discloses an extruding device and method for directional chopped carbon fiber reinforced thermoplastic composite materials in the field of composite material processing. A multifunctional stirring device is installed in the middle of the inside of the melting chamber, and the bottom of the melting chamber is connected to extruders arranged horizontally on the left and right through gate valves. The material chamber, the left side of the extrusion chamber is a telescopic hydraulic cylinder arranged horizontally, the right end of the telescopic hydraulic cylinder is connected with a first-stage sleeve piston, and the second-stage sleeve piston is coaxially connected with the first-stage sleeve piston; The outlet at the right end is coaxially connected and connected to the tapered stepped pipe nozzle. The tapered stepped pipe nozzle has a multi-stage tapered stepped pipe from left to right inside, and the inner diameter of the tapered stepped pipe decreases from left to right. And the left and right lengths decrease successively from left to right; the invention integrates the three processes of blanking, stirring and extruding into one, and guides the directional arrangement of chopped carbon fiber filaments in the thermoplastic resin matrix along the direction of material extrusion, and the chopped carbon fiber Filament and thermoplastic resin matrix raw materials are directly processed into continuous filaments.

The invention discloses a high-performance polyamide composite separation membrane based on a biopolymer polluted base membrane and a preparation method thereof, belonging to the technical field of membrane separation. In this method, the first choice is to use the biopolymer-contaminated basement membrane to obtain a complex of the basement membrane and the biopolymer-contaminated layer; The excess liquid droplets on the surface of the body; then immerse the compound after the previous step treatment in the second solution formed by dissolving the acid chloride monomer in n-hexane to carry out interfacial polymerization to form a trapping layer on the surface of the compound. After the reaction is completed, take it out to dry, and then Heat treatment to obtain the target separation membrane. The present invention innovatively utilizes biological polymer pollution as a means of modifying the base membrane, which plays a positive role in regulating the interfacial polymerization to form a polyamide interception layer, and significantly improves the water passing capacity of the prepared polyamide separation membrane. It provides an effective means to solve the problem of pollution / scrap low-pressure membrane recycling and use.

The invention discloses a method of cleanly recovering and reutilizing glyphosate after inactivation with an activated carbon catalyst. The method comprises the following steps of 1) oxidation treatment: heating the inactivated activated carbon catalyst at an atmosphere of oxygen-depleted air, rising the temperature to 100-500 DEG C, and performing oxidizing roasting for 2-12 hours; and 2) reduction heat treatment: heating the activated carbon catalyst after oxidation treatment under inert atmosphere protection, rising the temperature to 300-1,500 DEG C, introducing reducing gas for roasting for 0.5-24 hours, and performing cooling at an inert atmosphere to a room temperature to obtain the regenerated activated carbon catalyst. The use effect of the catalyst regenerated with the method isconsistent to the use effect of a fresh catalyst, the regenerated catalyst can be cyclically used for the process of producing the glyphosate with pmida, other pollution-carrying reagents are not usedin the regeneration process, secondary pollution cannot be caused, and the regeneration cost is low.

The invention discloses a regeneration method of an activated carbon catalyst used for preparing glyphosate. The regeneration method comprises a solvent elution step and / or a heat treatment step, wherein the solvent elution step refers to treating inactivated activated carbon catalyst for 4-24 hours in a refluxing condition by using a water solution with alkaline or reducing inorganic substance or an organic solvent with alkalinity or reducibility; and the heat treatment step refers to high-temperature roasting to-be-treated catalyst for 0.5-24 hours in a reducing gas to obtain regenerated catalyst with activity fully recovered. An object of reuse of waste activated carbon generated in a production process of the glyphosate can be achieved by the method provided by the invention, thereby greatly reducing generation of solid waste in the production process of the glyphosate and simultaneously reducing production cost.

The invention discloses an encrypted charging system for shared charging piles of electric vehicles, including a two-dimensional code, a charging mode selection interface, a charging consumption calculation module, a charging timing module, a charging current detection module, a power-on control module, a charging locking mechanism and a central control The system, the charging method includes the following steps: insert the charging head into the charging socket of the electric vehicle; authorize the charging pile to obtain the user identity, and select any charging method in the charging mode of the charging mode selection interface, and put the charging head Locking; charge the electric vehicle with power on the charging head, record the charging time and monitor the current of the charging head in real time; control the unlocking of the charging head and disconnect the power supply of the charging head, and the next user will share the charging head; this scheme is effective Prevent others from unplugging the charging gun head to steal electricity to charge their own electric vehicles during the charging process, and automatically unlock the charging gun head and cut off the power to the charging gun head after the electric vehicle is fully charged.