939results about How to "Achieve reuse" patented technology

The invention relates to the technical field of water treatment, in particular to a denitrification slow-release composite carbon source as well as a preparation method and application thereof. Comprising the following components in percentage by weight: 2-10% of hydroxy acrylic acid, 2-10% of saccharides, 5-15% of straw waste liquid, 5-15% of kitchen waste liquid, 2-10% of saccharides, 3-15% of porous volcanic ash, 5-15% of polyvinyl alcohol, 0.2-1% of inorganic salt, 1-2% of polypeptide, 0.5-1% of growth factors, 0.2-1.5% of MFC agar, 0.1-0.5% of cellulase, 0.1-0.5% of protease, 0.1-0.5% of denitrifying bacteria and the balance of water. The sum of the percentages of the raw materials is 100%. The invention has the advantages that: each nutrient component is balanced, the nutrition is comprehensive, the activity of denitrifying bacteria is improved, the number of species and community layers of a biological system of a sewage treatment plant are increased, the growth of various microorganisms is facilitated, nutrient substances can be fully utilized, and the denitrification effect is far higher than that of related carbon sources such as single methanol, glucose and the like.

The utility model discloses a carbon calcining furnace flue gas waste heat recovery device, which relates to the technical field of waste heat recovery, and comprises two groups of saddle type supports arranged in parallel, a heat exchange tank is fixedly connected above the two saddle type supports, a first connecting flange is arranged on the right side of the heat exchange tank, and a second connecting flange is arranged on the right side of the first connecting flange. A flow speed control assembly is fixedly installed on the right side of the heat exchange tank through a first connecting flange, a heat exchange assembly is arranged in the heat exchange tank, a second connecting flange is fixedly connected to the left side of the heat exchange tank, and a flow dividing assembly is fixedly installed on the left side of the heat exchange tank through a second connecting flange. The leftmost side of the top of the heat exchange tank is fixedly connected with a smoke outlet pipe, and the rightmost side of the bottom of the heat exchange tank is fixedly connected with a smoke inlet pipe. The system has the advantages that waste heat of high-temperature flue gas is effectively utilized and converted into heat energy, so that recycling of energy is achieved, energy consumption can be reduced, the overall energy utilization efficiency can be improved, and energy consumption is reduced.

The invention provides a coalescence-selective filtration-deep bed filtration efficient oil-water separation system which comprises a coalescence system, a selective filtration system and a deep bed filtration system, oily wastewater enters a coalescer, and tiny oil droplets are coalesced into larger oil droplets through wetting coalescence and collision coalescence; the coalesced wastewater enters a selective filter, oil droplets and water respectively flow out through an oil channel and a water channel, and primary separation is realized; according to the present invention, the water after the primary separation enters the deep bed filter to achieve the deep separation, the efficient oil-water separation and the water quality standard discharge or reuse are achieved through the combination process of coalescence, selective filtration and deep bed filtration, and the system has advantages of high treatment efficiency, low energy consumption, less carbon emission, oil and water recycling, or water standard discharge.

The utility model relates to a floating type offshore wind power suction anchor foundation mooring lifting lug structure which comprises a suction anchor cylinder body, a main eye plate and a cylinder body thickening plate, the cylinder body thickening plate is fixed on the inner side wall of the suction anchor cylinder body, the main eye plate is fixed on the outer side surface of the suction anchor cylinder body, and the cylinder body thickening plate is fixed on the inner side wall of the suction anchor cylinder body. The main eye plate penetrates through the side wall of the suction anchor cylinder and the cylinder thickening plate and is fixedly connected with a first connecting plate, a second connecting plate is fixed to the other side of the first connecting plate, and the second connecting plate is fixed to the inner side wall of the other side of the suction anchor cylinder. According to the utility model, the suction anchor cylinder body can form a whole with a stable structure.

The invention relates to the technical field of liquid air energy storage, and discloses a liquid air energy storage coupling system. The liquid air energy storage coupling system comprises a liquid air energy storage subsystem and a biomass gasification subsystem. The liquid air energy storage subsystem comprises a compressor unit, a heat storage unit, a cold storage unit and a turbine unit. And the biomass gasification subsystem comprises a biomass gasification furnace. And an air inlet of the heat storage unit is communicated with an air outlet of the air compressor unit. And the cold storage unit communicates with the heat storage unit. An air outlet of the heat storage unit communicates with an air inlet of the turbine unit and is used for conveying high-temperature air to the turbine unit, the high-temperature air enters the turbine unit to drive the power generator to generate power, and an air outlet of the turbine unit is used for discharging cooled air. And a gasifying agent inlet of the biomass gasifier is communicated with an air outlet of the turbine unit. Resource utilization of clean air at the outlet of the liquid air energy storage system can be achieved, and the system efficiency of the liquid air energy storage system is improved.

The invention discloses a modified PET recycled material and a preparation method thereof, and belongs to the technical field of plastic recycling. Comprising the following raw materials in parts by weight: 70-90 parts of a pretreated PET reclaimed material, 8-24 parts of modified graphene oxide, 3-9 parts of an antioxidant and 3-5 parts of a lubricant. Wherein the antioxidant can achieve a synergistic effect, so that the oxidation resistance of the PET recycled material is greatly improved; wherein the modified graphene oxide has good compatibility with a PET matrix, and can play a synergistic effect with groups on the surface of the modified graphene oxide, so that the flame retardance, antibacterial property and certain heat resistance of the PET recycled material are remarkably enhanced; therefore, the PET recycled material is modified and recycled, the pollution of waste materials is reduced, the recycling of resources is realized, and the modified PET recycled material also has excellent oxidation resistance, stable and efficient flame retardance, antibacterial property and heat resistance to a certain degree, and has important application value in the technical field of plastic recycling.

The invention relates to the technical field of nitrobenzene production, in particular to a method for preparing nitrobenzene by adopting a microreactor under a low-acid condition, the method for preparing nitrobenzene comprises the following steps: introducing a nitrating agent and raw material benzene into the microreactor for nitration reaction to obtain nitrobenzene, the microreactor is provided with at least four reaction modules which are connected in series, a nitrating agent and raw material benzene are fed into the first reaction module, and concentrated sulfuric acid is supplemented into at least one reaction module in other reaction modules except the first reaction module in the nitration reaction process; the effective concentration of sulfuric acid in the nitrating agent is not higher than 77%. The method for preparing nitrobenzene solves the production problems that benzene in a micro-reaction system is poor in reaction stability, incomplete in conversion and large in residual quantity in a low-acid environment, dinitration is affected, and the yield of waste acid is large. Finally, a mechanical application process of the dinitration waste acid and the acidic benzene is realized, the production process is safe and reliable, the operation flexibility is high, and the stability is high.

The invention relates to the technical field of fertilizers, in particular to a carbon-water biomass fertilizer and a preparation method thereof. The organic fertilizer is prepared from the following raw materials in parts by weight: 4000 to 5000 parts of solid wood sawdust, 80 to 120 parts of vegetable bran, 80 to 120 parts of wheat bran, 200 to 300 parts of cow dung, 200 to 300 parts of sheep manure, 20 to 40 parts of brown sugar, 30 to 50 parts of corn starch and 80 to 120 parts of microbial compound strains. The solid wood sawdust, vegetable bran, wheat bran, cattle and sheep manure and other agricultural byproducts are used as raw materials, decomposition of organic matters is accelerated under the action of fermentation and microbial composite strains, and the content of extractable organic carbon in soil is increased. According to the present invention, the soil structure and the soil fertility can be easily improved, the plant growth can be promoted, the resource utilization of the agricultural waste can be achieved, and the characteristics of environmental protection and sustainability are provided.

The invention relates to the technical field of heat exchangers, in particular to a plate heat exchanger cleaning system, a plate heat exchanger and a cleaning method. The fluid monitoring devices are installed at an inlet and an outlet of the plate heat exchanger respectively, connected with the control device and used for monitoring fluid data of the inlet and the outlet of the plate heat exchanger and transmitting the data to the control device. The high-pressure cleaning device is arranged between plate channels of the plate heat exchanger, is connected with the control device and is used for acquiring an instruction of the control device and cleaning the plate channels of the plate heat exchanger; the control device is used for receiving the fluid data of the fluid monitoring device and generating a cleaning instruction to the high-pressure cleaning device. Real-time monitoring and a response mechanism are combined, the fluid monitoring device, the high-pressure cleaning device and the control device are combined for control, the self-cleaning function of the plate heat exchanger is achieved, and the problems that an existing plate heat exchanger is difficult to clean and low in efficiency are solved.

The invention relates to the technical field of perforating machines, in particular to a full-automatic double-head perforating machine which comprises a supporting frame, a workbench is fixedly connected to the top of the supporting frame, sliding rails are fixedly connected to the two sides of the top of the workbench, sliding blocks are slidably connected to the tops of the sliding rails, and bearing plates are fixedly connected to the tops of the sliding blocks. Opposite punching motors are fixedly connected to the tops of the bearing plates correspondingly, punching heads are fixedly connected to the output ends of the punching motors, first electric telescopic rods are fixedly connected to the side wall of the workbench, the output ends of the first electric telescopic rods are fixedly connected to the side walls of the bearing plates, and a punching table is fixedly connected to the middle of the top of the workbench. The top of the workbench is fixedly connected with a supporting table, and the top of the supporting table is fixedly connected with a second electric telescopic rod. Compared with the prior art, the automatic bar placing and taking-out device effectively and automatically places and takes out bars, tedious operation of manual intervention is avoided, and the production efficiency is remarkably improved.

The invention relates to a flame-retardant cellulose composite film and a preparation method thereof, belongs to the field of flame-retardant materials, and aims to solve the problems that a cellulose film is inflammable, poor in compatibility with an inorganic flame retardant, relatively low in mechanical property and the like. The main components of the composite membrane comprise nanocellulose, titanate nanofibers, carbon dots and a cross-linking agent. The preparation method comprises the following steps: firstly, enabling the carbon dots to react with the nanocellulose under the action of an initiator; secondly, adding titanate nanofibers into the carbon dot modified nanocellulose suspension, and uniformly mixing; then, adding a cross-linking agent and uniformly dispersing to obtain a mixed solution; and finally, casting the solution into a culture dish, and curing in a vacuum drying oven to prepare the flame-retardant cellulose composite film. According to the preparation method, the compatibility of the flame retardant and the nano cellulose is remarkably improved, the mechanical property is enhanced, and the composite film has excellent flame retardance, smoke suppression and heat insulation characteristics and is suitable for preparing the flame-retardant cellulose composite film.

The utility model discloses a tooth socket type oral irrigator which comprises an irrigating tooth socket, a circulating water pumping main machine and a water storage container, wherein the flushing tooth socket is used for sleeving the outer sides of maxillary teeth and mandibular teeth, a flushing inner cavity for accommodating the maxillary teeth and the mandibular teeth is formed in the flushing tooth socket, a water inlet interface and a water outlet interface are also formed in the flushing tooth socket, and the water inlet interface and the water outlet interface are respectively communicated with the flushing inner cavity; the circulating pump water main machine is connected with the water inlet connector and the water outlet connector. The circulating water pumping main machine is further connected with the water storage container and used for pumping water flow so that water in the water storage container can be pumped into the washing inner cavity from the water inlet connector and water in the washing inner cavity can flow back into the water storage container from the water outlet connector. According to the utility model, the teeth can be flushed by wearing the flushing tooth socket, so that the convenience of flushing the teeth can be improved.

The invention discloses a cable branch box with a dehumidification function, and relates to the technical field of cable branch boxes, and the cable branch box comprises a box body, the two sides of the box body are provided with heat dissipation holes, and the box body is provided with a mounting groove; according to the cable branch box with the dehumidification function, when external moisture is too large, heat dissipation holes in the branch box are closed, the heat dissipation holes in the branch box are closed, the heat dissipation holes in the branch box are closed, the heat dissipation holes in the branch box are closed, the heat dissipation holes in the branch box are closed, and the heat dissipation holes in the branch box are closed, so that the heat dissipation holes in the branch box are closed, and the heat dissipation holes in the branch box are closed, and the heat dissipation holes in the branch box are closed. And then air with relatively high humidity in the box body is blown into the dehumidification box through the fan for dehumidification, so that the air in the box body is kept dry, meanwhile, heat dissipation is performed on the interior of the box body through the circulating heat dissipation mechanism, and external moisture is prevented from entering the box body, so that the moisture in the branch box is effectively removed, and the service life of the branch box is prolonged. And the influence of moisture on cables in the branch box is greatly reduced.

The invention discloses a preparation method and application of a high-sensitivity red-mud-based environment-friendly self-sensing concrete strain gauge. The preparation method comprises the following steps: carrying out crushing, grinding and drying pretreatment on red mud; the preparation method comprises the following steps: putting 35 parts of water into a cement mixer, gradually adding 0.4-0.8 part of carbon fibers into the water, stirring until the carbon fibers are uniformly dispersed, adding 100 parts of a cementing material which is composed of cement and red mud, and stirring until the cementing material is uniformly dispersed; a required composite mixture is obtained; pouring the composite mixture into a mold, and embedding a plurality of copper mesh electrodes; putting the mold on an electric vibrator, and vibrating to eliminate bubbles; and demolding, and curing in a standard curing room to obtain the red-mud-based environment-friendly self-sensing concrete strain gauge. According to the invention, the red mud is used as a granular conductive material, the carbon fiber is used as a conductive network structure in a mixed form of a fibrous conductive material, the strain sensitivity is high, the stability is good, the I-shaped strain gauge can be combined with concrete more tightly, and the adaptability to the load environment is high.

The invention discloses a photocatalytic polyether-ether-ketone ion exchange membrane as well as a preparation method and application thereof. The invention belongs to the field of polymer chemistry. The problem that the photocatalyst is difficult to recover in the prior art is solved. The preparation method comprises the following steps: preparing a polyether-ether-ketone film with amino and carboxyl side groups by using a film casting method and a chemical grafting method, preparing CoTiO3 nanofibers by using an electrostatic spinning method, preparing Bi-coated CoTiO3 by using a photodeposition method, and grafting Bi-coated CoTiO3 onto the polyether-ether-ketone film containing amino and carboxyl side groups by using a coordination field effect between metal ions and amino and carboxyl to obtain the CoTiO3 / Bi-coated CoTiO3 composite material. And the photocatalytic polyether-ether-ketone film is prepared. The prepared photocatalytic polyether-ether-ketone film has corrosion resistance and stability, can be applied to an extreme environment, can separate a photocatalyst from a reaction medium, realizes reuse, has the advantages of high degradation rate and high reducibility on various antibiotics and heavy metal ions, and can be applied to sewage treatment in various environments.

The invention discloses a treatment process of photovoltaic cell production wastewater, and relates to the technical field of industrial wastewater treatment. Comprising the following steps: treating dilute acid and dilute alkali through a reclaimed water recovery membrane system to obtain first produced water and reclaimed water concentrated water; treating the concentrated acid wastewater and the reclaimed concentrated water through a fluorine-calcium crystallization system to obtain defluorinated concentrated water and calcium fluoride crystals; treating the RO concentrated water and the defluorinated concentrated water by a hardness removal recycling system to obtain hardness-removed concentrated water and second produced water; treating the concentrated alkali wastewater through an alkali recovery membrane system to obtain purified alkali and alkali-removed concentrated water; hardness-removed concentrated water and alkali-removed concentrated water are treated by a comprehensive physicochemical system, and then are sequentially treated by a high-power concentration membrane system and a zero-discharge crystallization system to obtain solid wastes. The photovoltaic cell production wastewater treatment process provided by the invention achieves an economical and feasible zero-emission solution.

The invention relates to the technical field of power equipment boxes, and particularly discloses a special power equipment box which comprises a box body, an air inlet and an air outlet, the air inlet and the air outlet are formed in the front-back direction of the box body, a drying module is rotationally installed at the air inlet and comprises a shell, a drying unit and a material storage unit, and a drying cavity and ventilation holes penetrating through the front side wall and the rear side wall are formed in the shell; the drying unit comprises a driving assembly, a drying assembly and a separation assembly; the driving assembly comprises a driving frame rotating in the drying cavity. The drying device has the beneficial effects that the closing plate separates a wet drying agent on the front side, when the containing cavity rotates by 90 degrees, the wet drying agent is discharged into the lower storage cavity for drying treatment, the upper storage cavity supplements a new drying agent into the containing cavity, and when the drying agent in the upper storage cavity is used up, the shell turns over by 180 degrees, and the drying agent in the lower storage cavity is discharged out of the shell. The positions of the upper storage cavity and the lower storage cavity are exchanged and circulated, the drying agent does not need to be manually replaced, and meanwhile the drying effect in the box body is guaranteed.

The invention discloses a material product production system and method, and the system comprises a raw material supply module which is used for providing a raw material for an injection molding machine to produce a material product, and a regenerated material supply module which is used for providing a regenerated material for the injection molding machine to produce the material product, the detection module is used for detecting volume data of a production material in the hopper module in real time and transmitting the volume data to the control module, and the control module is used for controlling the fan module to start to work when the volume data is smaller than or equal to a first preset volume so as to enable the interior of the hopper module to be in a negative pressure state and controlling the working state of the proportional valve module. The raw material and the regenerated material are conveyed into the hopper module; and the control module is further used for controlling the fan module and the proportional valve module to be closed and controlling the hopper module to open the discharge port when the volume data is equal to the second preset volume, so that the production materials in the hopper module flow into the injection molding machine to produce material products. The production efficiency is improved, and the production cost is saved.

The invention discloses a method for regenerating a lithium iron phosphate positive electrode material from waste lithium iron phosphate battery black powder, and belongs to the technical field of waste lithium ion battery recovery. According to the method, the black powder of the waste lithium iron phosphate battery is subjected to wet leaching, a lithium iron phosphate precursor is prepared through a one-step hydrothermal method after deep impurity removal of a leaching solution, and finally modified lithium iron phosphate is prepared through high-temperature roasting. According to the method disclosed by the invention, the lithium iron phosphate positive electrode material can be regenerated only through a hydrothermal method, and lithium iron phosphate and carbon are uniformly compounded after carbonization roasting. The modified lithium iron phosphate is used as a lithium ion battery positive electrode material, the electrical property is excellent, the 0.1 C discharge specific capacity is 159.21 mAh / g, and the 1 C discharge specific capacity can reach 145.33 mAh / g. The main raw material involved in the invention comes from the waste lithium iron phosphate battery, so that the production cost of lithium iron phosphate can be effectively reduced, and waste battery resource circulation and environment-friendly utilization are realized.

The invention discloses a reclaimed water conveying method and system integrating energy recovery and electric energy storage, and relates to the technical field of reclaimed water conveying. The method comprises the following specific steps: purifying original wastewater through pretreatment and advanced treatment to obtain reclaimed water; conveying the reclaimed water through an urban reclaimed water pipe network; a hydroelectric generation device is arranged in an urban reclaimed water supply system, gravitational potential energy of water flow in the reclaimed water conveying process is converted into electric energy, and energy recovery is carried out; and the recycled electric energy is stored in the energy storage equipment and is used for the operation of a subsequent reclaimed water conveying system. Energy recovery and electric energy storage are achieved in the reclaimed water conveying process, the energy utilization efficiency is improved, dependence on external energy is reduced by recovering energy in the reclaimed water flowing process, and the conveying cost is reduced.

The invention belongs to the technical field of waste gas condensation, and particularly relates to a distributed condensation system and process which comprises a gas supply unit, a cooling unit, a heating unit, a backflow unit and a nitrogen supply unit. The gas supply unit is used for providing waste gas; the cooling unit is used for cooling and condensing the waste gas provided by the gas supply unit; the heating unit is used for heating the non-condensable gas discharged by the cooling unit; the reflux unit is used for collecting condensate in the cooling unit; the nitrogen supply unit is used for absorbing cold energy of the heating unit through nitrogen provided by the nitrogen supply unit when the heating unit is used for heating, and is used for absorbing heat of the cooling unit through liquid nitrogen provided by the nitrogen supply unit when the cooling unit is used for cooling; the air supply unit comprises a storage kettle and a breather valve, and the breather valve is arranged at the output end of the storage kettle; through cooperation of the structure, targeted treatment of different components in waste gas is achieved, the treatment risk is reduced, meanwhile, non-condensable gas in the condensation cavity can be directly treated, and the risk of liquid accumulation is prevented.

The invention relates to the technical field of earthquake resistance of corridor supports, and discloses a variable-rigidity high-altitude corridor support which comprises a first mounting steel plate, a second mounting steel plate and a third mounting steel plate. Locking pieces connected with the third mounting steel plate are arranged at the four corners of the first shock insulation support, the four corners of the second shock insulation support and the four corners of the second mounting steel plate in a penetrating mode, and shearing grooves are formed in the locking pieces; the first shock insulation support and the second shock insulation support are both used for conducting shock absorption on the high-altitude corridor support so that variable stiffness control over the high-altitude corridor support can be achieved. According to the invention, a set of multi-level rigidity-variable seismic isolation support is constructed, and based on a unique mechanical response mechanism of a multi-level seismic isolation system, when the seismic action intensity is in an increasing trend, the interaction force between the high-altitude corridor and the towers on the two sides is in a decreasing situation, and the seismic isolation effect is improved. Due to the characteristic, the anti-seismic toughness and stability of the whole structure in earthquake disasters are remarkably improved, and reliable guarantee is provided for the safety performance of a high-rise building structure in a complex earthquake environment.

The invention discloses an automatic cleaning device and method for dust removal filter bags, and relates to the technical field of tobacco production, the cleaning device comprises a water tank, a light transmittance sensor, a conductivity sensor and a tool structure, the light transmittance sensor and the conductivity sensor are arranged in the water tank, and the tool structure can conduct adaptive tensioning installation on the dust removal filter bags of different sizes; according to the cleaning method, the cleaning process is judged and guided through monitoring numerical values of the conductivity and the light transmittance of the cleaning water. According to the cleaning device, the dust removal filter bag is cleaned in a water washing, high-pressure flushing and ultrasonic cleaning combined mode, tobacco dust attached to the dust removal filter bag can be well removed, the dust removal filter bag can be repeatedly used, and control over the production cost and achievement of resource and environment friendliness are facilitated; according to the cleaning method, the cleaning work of the dust removal filter bag is guided and controlled through monitoring of the light transmittance and the conductivity of the liquid in the box body, the cleaning effect of the dust removal filter bag can be well guaranteed, and then normal operation and production safety of tobacco production are guaranteed.

The invention discloses a programmable metasurface unit chip and a programmable metasurface, and the unit chip sequentially comprises a first dielectric layer, a first bonding dielectric layer, a controllable metal layer, a second bonding dielectric layer, a third dielectric layer, a third metal layer, a third bonding dielectric layer, a fourth dielectric layer and a fourth metal layer from top to bottom. The controllable metal layer comprises a metal structure and a controllable element and is used for forming two isolation electromagnetic wave regulation and control channels so as to independently control orthogonal polarization electromagnetic waves and provide independent and controllable electromagnetic response for the incident orthogonal polarization electromagnetic waves; the third metal layer is used as a radio frequency ground for improving the electromagnetic wave reflection performance; the fourth metal layer is used for inputting bias voltage; and bias voltage is loaded to the controllable element through the metal holes of each layer. The plurality of unit chips are arranged on the substrate in an array mode to form the metasurface. The unit chip provided by the invention can greatly reduce the design and implementation complexity of the metasurface, reduce the production and maintenance cost, and promote the application of the metasurface in a wireless information system.

The utility model provides a reusable dinner plate packaging box which comprises a bottom plate, the left side of the bottom plate is connected with a first folding part, and the right side of the bottom plate is connected with a second folding part. The second folding part comprises a right vertical plate rotationally connected with the bottom plate, a right panel rotationally connected with the right vertical plate, a right supporting plate rotationally connected with the right panel and a right connecting plate rotationally connected with the right supporting plate, a right inserting part is arranged at the tail end of the right connecting plate, and a first inserting opening allowing the right inserting part to be inserted is formed in the right vertical plate; the bottom plate is provided with a second insertion opening allowing the right insertion part to be inserted therein, the right supporting plate is provided with a first containing window, and the first folding part is provided with a second containing window. When the right inserting part is inserted into the first inserting opening, the second folding part is bent and rolled up towards the bottom plate so that the right vertical plate, the right panel, the right supporting plate and the right connecting plate can form a quadrilateral structure, and the first containing window and the second containing window are correspondingly arranged so that the right portion and the left portion of the dinner plate can be inserted into the first containing window and the second containing window respectively; when the right inserting part is inserted into the second inserting opening, the right vertical plate is flush with the bottom plate, so that the surface of the right supporting plate faces upwards, and then the dinner plate can be vertically placed in the first containing window.

The invention discloses a method for regenerating a lithium iron phosphate positive electrode material with assistance of negative electrode lithium and a waste diaphragm. The method comprises the following steps: pretreating a waste lithium iron phosphate battery to obtain a waste lithium iron phosphate positive electrode plate, a waste diaphragm and a negative electrode plate; extracting residual lithium in the negative electrode by using a water immersion method, and uniformly mixing the recycled lithium with the waste positive electrode powder and the waste diaphragm; putting into a tubular furnace, introducing protective gas for thermal repair, and cooling to obtain a regenerated lithium iron phosphate positive electrode material; according to the method, residual lithium in a negative electrode serves as a lithium source, a diaphragm contained in the battery serves as a reducing agent and a carbon source at the same time, the waste lithium iron phosphate battery positive electrode material is directly repaired through mixed high-temperature roasting, and the obtained lithium iron phosphate positive electrode material has good electrochemical performance. No additional reagent is needed, and a brand-new thought is provided for regeneration of the lithium iron phosphate.

The invention provides a nucleation granulation treatment method and treatment system for incineration fly ash and flue gas, and belongs to the technical field of incineration waste treatment. The treatment method comprises the following steps that solid particles in incineration flue gas are removed, CO2 in the incineration flue gas is enriched, and CO2-rich waste gas is obtained; metal ions in the incineration fly ash are leached out through an amphoteric electrolyte solution, solid-liquid separation is conducted, and leaching liquid containing the metal ions and purified fly ash are obtained; and in the presence of nucleation granulation seed crystals, the CO2-rich waste gas is introduced into the leachate for a reaction, and carbonate granulation bodies, a regenerated ampholyte solution and tail gas are obtained. The treatment method and system provided by the invention are based on a nucleation granulation technology, and can simultaneously realize mineralization fixation of CO2 in incineration flue gas, removal and granulation recovery of metal ions in incineration fly ash, and metal dissolution-mineralization circulation.

The invention provides an iron phosphate waste residue recovery method, iron phosphate, carbon powder and lithium iron phosphate, and the recovery method comprises the following steps: carrying out acid leaching on the iron phosphate waste residue by using an acid solution to obtain a filter residue and an acid leaching solution, carrying out impurity removal on the obtained acid leaching solution, mixing the obtained acid leaching solution with a dispersant, carrying out evaporation crystallization, and sintering a solid obtained by evaporation crystallization to obtain the lithium iron phosphate waste residue. The recycled iron phosphate is obtained. According to the recovery method provided by the invention, the iron phosphate in the iron phosphate waste residues is recovered, the recovery rate of the iron phosphate is relatively high, and the recovered iron phosphate has relatively high purity. In addition, in the recovery method, the recovery of the carbon powder, the cyclic utilization of the acid liquor and the reutilization of water resources, heat and the dispersing agent can be realized.

The invention discloses a road intelligent traffic multifunctional monitoring optimization system and method, and the system comprises a controller, a deceleration strip, and a traffic light assembly. The controller comprises an embedded single-chip microcomputer, a traffic flow detection module, a short-time traffic flow prediction module, a traffic state analysis module and a real-time traffic flow control adjustment module. The road intelligent traffic multifunctional monitoring optimization system not only has the capability of detecting and predicting the traffic flow in real time, but also has the function of monitoring the road traffic operation condition to give an alarm, and improves the travel experience of urban residents through intelligent regulation and control of the traffic flow. The technical problem that unnecessary waiting time or traffic jam occurs under some conditions due to the fact that traffic conditions cannot be intelligently regulated and controlled by an existing road intelligent traffic multifunctional monitoring optimization system and method, and traffic light time circulates in a fixed time interval is effectively solved.

The invention discloses a root locking mechanism applied to a spatial extension arm, which is used for locking a supporting disc and a sleeve of the spatial extension arm, the supporting disc is perpendicular to the axial direction of the sleeve, and the root locking mechanism is characterized by comprising a locking mechanism unit, an anti-overturning mechanism assembly and a structural locking groove in the inner wall of the sleeve, wherein the four anti-overturning mechanism assemblies are installed on the four locking mechanism units in a one-to-one correspondence mode, one ends of the four anti-overturning mechanism assemblies make contact with the inner wall of the sleeve, and a supporting effect is provided for the root locking mechanism; the bottom ends of the four locking mechanism units and the four corners of the supporting disc are installed in a one-to-one correspondence mode. Four structure locking grooves are evenly distributed in the inner wall of the sleeve and matched with the upper ends of the four locking mechanism units for locking. The locking device has the advantages of being compact in structure, stable and reliable in the working process, high in locking rigidity, convenient to unlock, capable of being repeatedly used and the like.