97results about How to "Realize resource reuse" patented technology

The invention provides a wood-plastic composite material preparation method, which comprises: S1, cutting and crushing a wind power blade recovered material to obtain a wind power blade powder material, and carrying out screening and surface treatment on the powder material; s2, uniformly mixing the wind power blade powdery material, wood flour and an auxiliary agent in proportion to obtain a mixed material; and S3, the mixed material is subjected to internal mixing treatment, the internally mixed material is subjected to hot press molding and cold press shaping, and the composite material is obtained. The WGFRP material in the retired wind power blade is used for preparing the wood-plastic composite material, so that the mechanical property and weather resistance of the composite material are remarkably improved, the service life of the material is prolonged, resource reutilization of wastes is realized, environmental pollution caused by landfill and incineration is reduced, the use amount of plastic in the production process is reduced, and the production cost is reduced. The carbon emission is reduced, and the influence on the environment is reduced.

The invention is suitable for the technical field of chemical synthesis, and provides composite material lignin-based hydrothermal carbon as well as a preparation method and application thereof. According to the invention, lignin is taken as a raw material, so that resource reutilization of biomass is realized; the high-activity lignin-based hydrothermal carbon material is prepared by a hydrothermal method, and the high-activity composite material lignin-based hydrothermal carbon material is prepared by combining a mechanical ball milling method, so that the synthesis route is more convenient, green and safe; surface functional groups of lignin can be increased through a hydrothermal process, and meanwhile, metal and boron ions are introduced into the catalyst through a mechanical ball milling process, so that the material can efficiently isomerize glucose into fructose, the reaction time is short, and the selectivity is high. The metal aluminum modified lignin-based biochar catalyst prepared by using the preparation method provided by the invention can realize the glucose conversion rate of 67.4% and the fructose yield of 54.8%.

The invention provides gasified slag sprayed concrete which is prepared from the following components in parts by mass: 320 to 750 parts of activated gasified slag silica fume compound, 150 to 550 parts of medium sand, 300 to 500 parts of Portland cement, 50 to 100 parts of fly ash, 500 to 700 parts of gravel, 10 to 20 parts of water reducing agent, 10 to 25 parts of accelerator and 140 to 200 parts of water, wherein the raw materials of the activated gasification slag silica fume compound comprise gasification slag, silica fume and salt-containing wastewater, the mass ratio of the gasification slag to the silica fume to the salt-containing wastewater is (30-70): (1-3): (1-2), the concentration of chloride ions in the salt-containing wastewater is 4000-4500 mg / L, and the concentration of sulfate radicals in the salt-containing wastewater is 69000-78000 mg / L. According to the gasified slag sprayed concrete provided by the invention, the initial setting time and the rebound rate can be effectively reduced, and meanwhile, the compressive strength can be enhanced.

The invention discloses an AnMBR in-situ treatment device and method for marine oil-containing mixed wastewater. The AnMBR in-situ treatment device comprises a reactor shell, and the shell is provided with a sample inlet, a sludge outlet, a backwashing device and a circulating gas inlet device; a membrane component is arranged in the shell, a stirrer is arranged in the membrane component, and rolling brush type frame flexible filler is arranged inside and outside the membrane component; a suction pipeline is arranged in the shell, treated sewage is discharged to an external water collecting tank through the suction pipeline, a suction pump, a liquid three-way valve and a water outlet pipe, and liquid is sucked from the water collecting tank through the suction pump and enters the reactor shell through a backwashing water inlet pipe and a backwashing device to wash the outside of the membrane module; a gas outlet hole is formed in the top of the reactor shell, and treated gas is exhausted from the gas outlet hole, passes through a gas collecting pipeline, a first gas exhaust pipeline, a second gas exhaust pipeline and a backwashing gas inlet pipeline, is pumped into the reactor shell through a circulating gas inlet device under the action of a gas circulating pump and is used for washing the membrane component; according to the invention, the contradiction between small ship space and large complex occupied area of the treatment device can be solved, the accumulation of pollutants in the membrane module is slowed down, the operation cost is reduced, the microbial density is increased, the spatial distribution of functional bacteria is completed, the impact resistance of the device is improved, and the comprehensive in-situ removal of carbon, nitrogen and sulfur pollutants and the zero emission of harmful gases are realized.

The application discloses a titanium-based cast iron release agent, which comprises a base and water, and the base is composed of raw materials with the following mass percentages: 20-80% of silicon-based raw materials and 20-80% of titanium-based raw materials; the titanium-based raw materials are flue dust removal ash generated in the electric furnace process of high-titanium slag smelting. The application uses the flue dust removal ash generated in the electric furnace process of high-titanium slag smelting as a titanium raw material to prepare the titanium-based cast iron release agent, realizes the resource recycling of the flue dust removal ash, reduces the pollution to the environment, and improves the economic value; meanwhile, all preparation processes are carried out under normal temperature and pressure conditions, no additional energy is required, and when the titanium-based cast iron release agent is applied to a cast iron machine mold, the surface of the cast iron block can be ensured to be smooth and easy to release.

The present invention discloses a regenerated micro-powder improved soil-bentonite vertical anti-fouling isolation wall and a construction method thereof, including an isolation wall body, a guide wall and a steel pipe frame, wherein the steel pipe is arranged at the bottom of the isolation wall body. The method comprises: a, preparation of bentonite slurry; b, preparation of regenerated micro-powder of construction waste; c, construction of the guide wall; d, digging and grooving; e, preparation of the wall material of the isolation wall; f, making a bottom support plate and an inner insert plate; g, making a steel pipe frame; h, welding a bottom support plate; i, welding an inner insert plate; j, hanging and placing the steel pipe frame; k, hot-melt connection of the anti-seepage plate; l, backfilling of the wall material of the isolation wall; m, forming of the vertical anti-fouling isolation wall. The present invention can enhance the stability of the groove during the construction of the vertical anti-fouling isolation wall, that is, ensure the integrity of the wall body after the wall is formed, enhance the anti-seepage and anti-fouling performance of the vertical anti-fouling isolation wall, and at the same time, utilize the regenerated micro-powder of construction waste as the wall improvement material, which can optimize the mechanical properties and anti-seepage and anti-fouling performance of the wall body.

The invention discloses a preparation method of a spirulina biopesticide, which comprises the following steps: preparing water, spirulina mud, a carbon source and zymophyte, and sequentially putting into a sealed barrel; opening the sealing barrel, uniformly stirring once every day, continuously stirring for 7-10 days, and adding the waste flue-cured tobacco when the mixed liquid is odorless and has acid fragrance; then uniformly stirring once every 7-10 days, and stirring for 3-4 times; finally, uniformly stirring once every 15 days, and sealing for 2-3 months after stirring twice, so as to obtain fermentation liquor; adding a veratrum nigrum extract and a fructus cnidii extract into the fermentation liquid, uniformly mixing, standing and filtering to obtain the spirulina biopesticide. The pesticide has the effect of killing pests, especially aphids, the waste flue-cured tobaccos and the spirulina are fermented by adopting zymophyte mainly comprising candida alcoholism, then the veratrum nigrum extract and the fructus cnidii extract are compounded, the preparation method is simple and effective, the aphids can be killed at low concentration, the use amount of the pesticide is reduced, the pest control cost is reduced, resource reutilization is realized, and the pesticide has a good application prospect. And no chemical agent is used, and low toxicity and environmental protection are realized.

The present application provides a kind of nitromethane tail gas treatment method, comprising the following steps: sodium hydroxide or potassium hydroxide aqueous solution and low-grade fatty diol and organic base miscible to form mixed solution after preheating, then nitromethane tail gas is passed into mixed solution and reacts, reaction end product is separated and purified to obtain corresponding sodium nitrite or potassium nitrite product.The present application also provides a kind of nitromethane production method, including the sodium nitrite or hydrogen potassium obtained above as raw material to recycle production nitromethane.The method of the present application solves the problem of nitromethane tail gas treatment, also can turn waste into treasure, reduce production cost, conducive to nitromethane production and environmental protection.

The invention relates to the field of signal planning, in particular to a signal planning method based on an overlapped frequency band of a dual-channel system, which comprises the following steps of: dividing a working frequency band into two channels, and adding the overlapped frequency band for the two channels; determining channel planning of the signals according to whether the signals are all located on the non-overlapping frequency bands or not: when the frequency bands of the signals are all located on the non-overlapping frequency bands, selecting an appropriate channel by directly comparing the signals with the frequency band range of the channel, and selecting the channel of the frequency band where the signals are located for signal emission; and when the signal frequency bands are not all located on the non-overlapping frequency bands, channel planning is performed on a single signal and two signals. According to the invention, the overlapping frequency band is arranged between the two channels, extra cost caused by increasing frequency band resources does not exist, resource multiplexing of the overlapping frequency band is realized on the basis of not modifying hardware equipment, and the problem of idle channel resources of a system for realizing signal continuity by using the overlapping frequency band is avoided.

The invention provides a DPU capability multiplexing method and device, electronic equipment, a storage medium and a program product, relates to the technical field of communication, and is used for improving the resource utilization rate of a DPU. The method comprises the following steps: receiving a DPU call request message, wherein the DPU call request message comprises a DPU capability demand of a target application; based on the calling request, determining N reusable DPUs meeting the DPU capability requirement; n is an integer greater than or equal to 1; a calling response message is sent to a source DPU where the target application is located, the calling response message comprises the address information of the N reusable DPUs and is used for indicating the source DPU to segment the to-be-processed data of the target application according to the address information of the N reusable DPUs to obtain N data slices, and the N data slices are sent to the N reusable DPUs respectively.

The present invention is applicable to the field of chemical synthesis technology, and provides a composite material lignin-based hydrothermal carbon and its preparation method and application. The present invention uses lignin as a raw material to realize the resource recycling of biomass; a highly active lignin-based hydrothermal carbon material is prepared by a hydrothermal method, and a highly active composite material lignin-based hydrothermal carbon material is prepared by combining a mechanical ball milling method, and the synthesis route is more convenient, green and safe; lignin can increase the surface functional groups through a hydrothermal process, and the present invention introduces metals and boron ions into the catalyst through a mechanical ball milling process, so that the material can efficiently isomerize glucose into fructose, with a short reaction time and high selectivity. The preparation method provided by the present invention is used to prepare a metal aluminum-modified lignin-based biochar catalyst, which can achieve a glucose conversion rate of 67.4% and a fructose yield of 54.8%.

The present invention relates to the field of signal planning, and in particular to a signal planning method based on overlapping frequency bands of a dual-channel system, comprising the following steps: dividing a working frequency band into two channels, and adding overlapping frequency bands to the two channels; determining the channel planning of the signal according to whether the signal is located entirely on non-overlapping frequency bands: when the signal frequency bands are all located on non-overlapping frequency bands, directly selecting a suitable channel by comparing the signal with the channel frequency band range, and selecting the channel of the frequency band where the signal is located for signal transmission; when the signal frequency bands are not all located on non-overlapping frequency bands, channel planning is performed for a single signal and two signals respectively. The present invention sets overlapping frequency bands between dual channels, does not have additional costs caused by increasing frequency band resources, and realizes resource reuse of overlapping frequency bands without modifying hardware equipment, thereby avoiding the problem of idle channel resources in a system that uses overlapping frequency bands to achieve signal continuity.

The invention belongs to the technical field of feed preparation, and particularly relates to a kok-saghyz feed for inhibiting inflammation and a preparation method and application thereof, the kok-saghyz feed is obtained by mixing kok-saghyz extract and basal feed according to the mass ratio of (0.01-0.2): 1 and granulating; the kok-saghyz feed is used for inhibiting inflammation. According to the present invention, the kok-saghyz is fully utilized, and the obtained kok-saghyz feed can reduce the morbidity rate of cattle, can ensure the cattle body immunity and the growth and development of the digestive system, can improve the cattle yield and the quality death rate, and can improve the comprehensive benefits of farmers.

The invention is applicable to the technical field of degradation of polyester chemical fiber waste fabrics, and provides a method for preparing a metal-organic framework (MOFs) material by using a waste polyester chemical fiber fabric, which comprises the following steps: adding a polyester chemical fiber (PET) waste fabric into an alkali metal hydroxide aqueous solution, hydrolyzing under certain conditions, adjusting the pH value to 3-4, centrifugally collecting precipitate, and drying to obtain the MOFs material. Washing, decolorizing and drying in vacuum to obtain a white solid substance terephthalic acid; and uniformly mixing the obtained pure terephthalic acid with metal salt, and then putting the mixture into a ball mill for ball milling. Washing and collecting the MOFs product obtained after ball milling, and finally performing vacuum drying to obtain the MOFs material. According to the method, the waste colored polyester chemical fiber fabric is decomposed and decolorized, and the MOFs material is massively produced by utilizing mechanochemical ball milling. The method has the advantages of being environmentally friendly, economical, efficient, free of organic solvent and capable of being used for large-scale production, and recycling and high value of the waste clothes are achieved.

The application relates to the field of wind power blades, and discloses a wind power blade manhole plate and manhole cover plate as well as a preparation method and application thereof. The method comprises the following steps: (1) mixing unsaturated polyester resin, a thickening agent, an initiator, a crosslinking agent, a low shrinkage agent, a release agent, a polymerization inhibitor, an inorganic filler and waste glass fibers, and then filling the mixture into a mold for preheating; (2) performing mold pressing on the preheated material to obtain a preformed material; and (3) performing heat treatment on the preformed material, and then performing demolding to obtain the wind power blade manhole plate and manhole cover plate. The method is prepared by creatively adopting a mold pressing forming method, and waste glass fibers are used as raw materials for preparation, so that the preparation cost is saved, and the preparation efficiency is improved.

The invention belongs to the technical field of material preparation and application, and particularly relates to a preparation method and application of an iron-carbon micro-electrolysis material containing copper-based MOFs. The preparation method of the iron-carbon micro-electrolysis material containing the copper-based MOFs comprises the following steps: comprehensively utilizing waste iron-ore slag, activated carbon, waste molasses and ammonium chloride, mixing, mixing with water to prepare microspheres, and calcining to prepare the iron-carbon micro-electrolysis material. The preparation method comprises the following steps: sequentially adding copper sulfate, sodium ascorbate and 1, 2, 4-triazole into a methanol aqueous solution, and carrying out hydrothermal reaction to obtain the Cu-MOFs material. According to the invention, the metal catalyst Cu-MOFs material is added into the iron-carbon micro-electrolysis material, so that the removal rate of nitrite nitrogen in water reaches about 97%, and the iron-carbon micro-electrolysis material has the advantages of high conversion rate, strong anti-interference capability, no secondary pollution and the like; in the preparation process, reaction raw materials are wide in source and low in price, waste iron-ore slag is used for replacing iron powder, waste molasses is used for replacing starch to serve as an adhesive, and comprehensive utilization of waste is achieved.

The present invention discloses a method for cold-pressing blast furnace gravity ash, comprising the steps of: (1) drying blast furnace gravity ash and converter steel slag tailings; (2) preparing a binder; (3) spraying water and mixing blast furnace gravity ash, converter tailings and binder at a mass ratio of 80:20:15-35, and pressing into blocks to prepare a sample. The present invention treats blast furnace gravity ash by adding a high-efficiency binder and converter tailings to make it cold-pressed. CMC in the binder is used to perform low-temperature consolidation on converter tailings and blast furnace gravity ash, and cement and bentonite are used to improve their strength, thereby finally achieving effective bonding of blast furnace gravity ash, expanding its application path, and providing a new method for treating blast furnace gravity ash, a solid waste resource of enterprises.

The invention discloses a heavy metal contaminated soil cleaning and heavy metal recycling device and a working method thereof, and relates to the technical field of heavy metal contaminated soil cleaning and heavy metal recycling. A first conductivity sensor is arranged, the first conductivity of the wastewater generated by the secondary cleaning tank is detected, a processor is arranged, whether the first conductivity is larger than or equal to a first preset value or not is judged, if yes, the secondary cleaning tank is controlled to work again till the first conductivity is smaller than the first preset value, and the secondary cleaning tank works again; and a heavy metal recycling part is arranged, and heavy metal in the wastewater is recycled. The effectiveness of soil cleaning is guaranteed in a repeated cleaning mode, meanwhile, the heavy metal recycling process can be completed, waste of heavy metal is avoided, and resource reutilization is further achieved.

The application discloses a water conservancy construction sludge carbon resource utilization device, and relates to the technical field of sludge resource treatment, which comprises a filter cartridge, a cover shell and a heat exchanger. The filter cartridge is internally provided with heat exchange pipes. The cover shell is coaxially and sealingly sleeved outside the filter cartridge and forms an annular space. The annular space is provided with an air inlet pipe and an air outlet pipe at two ends. The two groups of pipelines of the heat exchanger are heat-coupled. One group of pipelines is connected with the heat exchange pipes to form a heat exchange loop, and the other group of pipelines is connected with the waste gas pipeline of a carbonization furnace and the air inlet pipe. After waste gas of the carbonization furnace is recycled by the heat exchanger, the waste gas is introduced into the annular space to form annular airflow, which can break the water film on the surface of the filter cartridge, increase the pressure difference between the inside and outside of the filter hole, improve the sludge dewatering efficiency, and remove the waste gas particulate matter carried by the airflow. The carbonization furnace waste heat resource utilization, sludge efficient dewatering and waste gas purification integrated operation can save energy and reduce emissions, and has remarkable environmental protection benefits.

The wastewater treatment system comprises a water inlet unit, a reactor, a separation unit and a circulation unit which are sequentially connected to form a closed-loop system, the water inlet unit is further connected with a chemical dosing unit, the water inlet unit is used for conveying wastewater to the reactor, and the chemical dosing unit is used for adding alkali into the wastewater to adjust the pH value and providing required magnesium ions; a fluidization reaction zone and a separation zone are arranged in the reactor, and the fluidization reaction zone promotes generation and growth of struvite particles through particle collision and aggregation; the separation zone enables generated particles to partially fall back to the fluidization reaction zone for continuous reaction through preliminary solid-liquid separation; the separation unit is used for receiving the wastewater in the separation area, further removing residual particles, and enabling the small particles to flow back to the reactor through the circulation unit for recycling. By optimizing particle generation, separation and backflow processes in wastewater treatment, formation of target large particles is promoted, resource recycling is facilitated, meanwhile, consumption of chemical agents is reduced, and cost is reduced.

This invention discloses a method for producing planting soil for landscaping using nitrogen- and phosphorus-polluted river and lake sediment. The method includes the following steps: collecting nitrogen- and phosphorus-polluted river and lake sediment; filtering the sediment through a separation unit to obtain a first mixed soil; allowing the first mixed soil to stand for one hour; adding auxiliary materials to the first mixed soil; and then subjecting it to intensive mixing through a mixing unit to obtain a second mixed soil; sending the second mixed soil to a ventilation chamber and adding a microbial compound inoculant to promote rapid decomposition, thus obtaining planting soil suitable for landscaping. This invention has the following advantages and effects: it designs a complete and standardized processing chain to improve nitrogen- and phosphorus-polluted river and lake sediment, producing planting soil for landscaping, turning waste into treasure, and realizing the resource reuse of sediment.

The utility model discloses a ball massage stick which aims to solve the technical problems that in the prior art, the massage range of a ball massage device is limited, and balls are not convenient to recycle, the massage stick comprises an upper cover, a plurality of balls, a lower cover, a massage block and a handle body, the handle body comprises a handheld portion and a fixing portion, the handheld portion is a long irregular cylinder, and the fixing portion is fixed to the handheld portion. A user can conveniently hold different positions on the handheld part according to own requirements, the assembly steps are that the massage block, the lower cover, the ball and the upper cover are correspondingly clamped into the first mounting position, the second mounting position, the lower rolling groove and the third mounting position in sequence, the assembly is simple, when the ball needs to be recycled, the ball can be taken out by pressing the switch button, resource recycling is achieved, and the practicability is high. And meanwhile, balls of different numbers and different sizes on the lower cover can be conveniently replaced, and the use flexibility is higher.

The application discloses a red clay phosphorus adsorbent, which comprises 115-145 parts of red clay particles, 20-30 parts of diatomite, 10-15 parts of glass powder and 3-10 parts of marble powder; and the preparation process comprises the following steps: preparing the red clay particles, weighing the raw materials, crushing, calcining and mixing. The red clay has good adsorption performance on phosphorus, is rich in resources, has a wide distribution range and low cost, and is a natural environment-friendly material. When the red clay is put into sewage, no secondary pollution and other problems are caused, so the red clay has great development potential in the aspect of adsorbing phosphorus.

The invention relates to the field of carbon dioxide capture, and discloses a process for curing CO2 by using desulfurization slag, which comprises the following steps: (1) drying and grinding SDS desulfurization slag, then contacting with coke oven gas for reaction to obtain a solid product, and mixing the obtained solid product with water to obtain a mixed solution; (2) the mixed solution obtained in the step (1) is in contact with metallurgical furnace flue gas for a first reaction, a reacted solution is obtained, the reacted solution is in contact with the metallurgical furnace flue gas for a second reaction, and a reacted material is obtained; and (3) carrying out reduced pressure evaporation and solid-liquid separation on the reacted material obtained in the step (2), and drying the solid-phase material obtained after solid-liquid separation to obtain sodium bicarbonate. According to the process, by reconstructing a desulfurization carbon sequestration synergistic harmless treatment process, synergistic treatment of metallurgical solid waste and CO2 is achieved, and Na2SO4 and Na2CO3 of desulfurization residues are converted into recycling products NaHCO3.

The invention discloses self-repairing high-strength composite geotechnical cloth based on an MICP technology and a preparation method. The self-repairing high-strength composite geotechnical cloth is composed of first bio-fiber geotechnical cloth, high-strength composite geotechnical cloth and second bio-fiber geotechnical cloth which are sequentially arranged from bottom to top. The first bio-fiber geotextile consists of animal fur fibers, plant stem and leaf fibers and synthetic fibers, and is processed and formed by a needling process; the high-strength composite geotechnical cloth is composed of high-strength warp yarn fibers, high-strength weft yarn fibers and polypropylene fibers, and the high-strength warp yarn fibers, the high-strength weft yarn fibers and the polypropylene fibers are interwoven to form a groined structure in a warp-weft crossing and up-down overlapping Central pores of each #-shaped structure formed by the high-strength warp fibers, the high-strength weft fibers and the polypropylene fibers of the high-strength composite geotechnical cloth are uniform and consistent in size; the second bio-fiber geotextile is formed by needling animal fur fibers, plant stem and leaf fibers and synthetic fibers, penetrating through a central pore of the #-shaped structure of the high-strength composite geotextile and connecting with the fibers of the first bio-fiber geotextile.

The invention provides a method for nanofiltration separation of vanadate radicals or multiple vanadate radicals and sodium ions from a vanadium solution, relates to the crossing field of hydrometallurgy resource recovery and membrane separation technologies, and aims to solve the technical problems of poor separation selectivity of vanadium and sodium in the vanadium solution, low resource recovery rate and high energy consumption in the prior art. According to the method, suspended impurities in a vanadium solution are removed through pretreatment, and an acid and alkali resistant modified polyamide composite nanofiltration membrane is selected for nanofiltration separation, so that a high-vanadium concentrated solution and a high-sodium permeate solution are obtained. According to the method, the vanadate radical rejection rate is larger than or equal to 98%, the sodium ion transmittance is larger than or equal to 80%, the high-sodium permeate liquid can be circularly used for preparing a leaching agent / regenerant, the energy consumption of solution treatment per ton is only 25-37.5% of that of a traditional process, secondary pollution is avoided, the process is simple, the method is suitable for industrial production, and the economical efficiency and environmental friendliness of the sodium modification vanadium extraction process are remarkably improved.

The invention relates to the field of water treatment materials, and particularly discloses a porous carbon-carbon composite adsorption material prepared on the basis of semi-coke wastewater recovered fractionated phenol extract and gasified slag as well as a preparation method and application of the porous carbon-carbon composite adsorption material. The preparation method comprises the following steps: taking pretreated gasified slag prepared by pickling and modifying the gasified slag as a reinforcement matrix; the method comprises the following steps: mixing a fractionated phenol purified product recovered from semi-coke wastewater with an organic binder, phosphoric acid and a solvent to prepare a precursor solution; the invention discloses a preparation method of a porous carbon-carbon composite adsorption material, and the porous carbon-carbon composite adsorption material prepared by the method and application of the porous carbon-carbon composite adsorption material in the field of water treatment are prepared by soaking a reinforcement matrix in a precursor solution and heating and carbonizing. According to the invention, two industrial wastes, namely the gasified slag and the semi-coke wastewater recycled material, are used as main materials and are subjected to pore forming in a high-temperature carbonization process at the same time, so that the prepared adsorption material has excellent decoloration and COD removal performance, and meanwhile, high-value resource reutilization of the wastes is realized.

The utility model discloses a defrosting device of an air filter, and relates to the technical field of air filters. The device comprises two reinforcing rings, a filter screen component, a copper gauze component, a heating pipe and a protective cover, the reinforcing rings are arranged on the upper end face and the lower end face of the defrosting device correspondingly. The filter screen assembly comprises a high-strength plastic framework filter screen on the inner layer and a scrapped air filter outer screen on the outer layer. The copper gauze element assembly comprises a 120-mesh copper gauze element and a thin stainless steel wire shaping frame embedded into the edge of the 120-mesh copper gauze element, the heating pipe is arranged in the circumferential direction of the middle of the defrosting device and filled with electric heating wires, and cooling fins are arranged on the outer surface of the heating pipe. According to the utility model, the 6-10 heating pipes are uniformly distributed along the circumference and are matched with the radiating fins on the outer surface, so that heat can be quickly and uniformly radiated, frost layers at all parts of the filter element can be synchronously melted, and the defrosting efficiency is effectively improved.

The invention discloses an integrated optical modulator for realizing a DP-PAMx (polarization multiplexing-x-order optical pulse amplitude modulation, x = 2, 4, 8, 16) modulation format based on a TFLN (thin film lithium niobate) photon integration technology, which comprises a light beam splitter based on a thin film lithium niobate base, a Mach-Zehnder structured light intensity modulator, a heating light phase shifter and a light polarization rotation beam combiner, and a matched high-speed modulation circuit and the like. Advanced light modulation units such as optical power beam splitting, polarization rotation beam combination, multi-order light intensity modulation, heating of an optical phase shifter and additional arrangement of a high-speed modulation circuit are achieved through the thin film lithium niobate photon integration technology, and the functional units are integrated into a prototype chip through the LNOI (thin film lithium niobate on insulator) wafer technology and a process processing platform. And optical and electrical function units are integrated through a high-speed packaging technology and an electromagnetic compatibility design, so that the ultra-high-speed optical modulator module of the next-generation optical communication system of the data center, which meets the requirements of single-wave (or single-path) 400Gb / s and above speed, is finally realized.

The present invention relates to a treatment system and method for reducing and solidifying the resource recycling of electrolytic aluminum slag leachate. The treatment system of the present invention mainly comprises: a pre-precipitation tank (1), a regulating tank (2), an aluminum hydroxide reaction precipitation tank (3), a primary defluorination coagulation precipitation tank (4), a precision filter 1 (5), an activated aluminum oxide precision defluorination device (6), a two-stage oxidation cyanide breaking reaction tank (7), an oxidation arsenic removal reaction tank (8), a precision filter 2 (9), an ultrafiltration membrane clarification device (10), a resin weight removal device (11), a membrane concentration system (12), a deammonification tower (13), and an evaporation concentration crystallization device (14). The treatment method of the present invention can effectively realize resource recycling, convert ammonia nitrogen into ammonia water resources, and prevent arsenide, fluoride and chloride salt from leaving the factory, thereby reducing the amount of solid waste generated, avoiding the problem of hazardous waste management and transportation, and having lower operating costs. The economic benefits and comprehensive operating costs of aluminum and ammonia nitrogen generated are much lower than those of traditional processes, truly "making pollution control effective and profitable".