575results about How to "Achieve purification" patented technology

The invention discloses a bio-based foam adsorption material as well as a preparation method and adsorption application thereof. The bio-based polymer is used as a foam skeleton, the adsorbent with a large specific surface area is added to further improve the foam adsorption capacity, the cross-linking agent and the reinforcing filler improve the overall strength of the foam, and the bio-based foam adsorption material with the high adsorption capacity is obtained. The bio-based foam disclosed by the invention is light in weight, controllable in hydrophilicity and hydrophobicity, and capable of separating and removing pollutants such as oil and organic dye. The foam has high adsorption capacity and good cyclic adsorption capacity, can be repeatedly used, is biodegradable, does not pollute the environment, can effectively adsorb dangerous chemicals existing in a water body, does not cause secondary pollution, and can be used for decontamination treatment of organic pollutants in industrial wastewater.

The invention discloses an adversarial sample purification method based on a conditional diffusion model. The adversarial sample purification method comprises the following steps: acquiring a clean sample data set containing clean samples; attacking the classification model by using a white-box attack algorithm, and generating a pair of confrontation samples for each clean sample; performing one-to-one pairing on the clean samples and the adversarial samples to form a training data set; the method comprises the following steps of: obtaining a pre-trained Stable Diffusion model; designing a fine tuning process and a fine tuning loss function; and S6, presetting an iteration round and a batch size, and finely adjusting network parameters of a cross attention layer in the Stable Diffusion model by using the training data set to obtain a finely-adjusted conditional diffusion model for purification of an adversarial sample. According to the method, the adversarial sample is used as conditional information to be input into the Unet neural network to guide model learning, so that the model can learn the characteristics of adversarial disturbance, and the calculation efficiency, robustness and stability can be improved.

The invention provides an agriculture and forestry wet compound system and a comprehensive synergistic method for a rice farming aquatic product area. The agriculture and forestry wet compound system comprises an ecological rice field area, an ecological pond area, a forest and wet compound area, an aquatic product culture area and an ecological hydroponic area. The ecological paddy field area is communicated with the ecological pond area through a pipeline, the ecological pond area is communicated with the forest wetting composite area through a pipeline, the forest wetting composite area is communicated with the aquaculture area through a pipeline, and the aquaculture area is communicated with the ecological hydroponic area through a pipeline. Incoming water containing bottom mud, residual feed and biological debris in the ecological hydroponic area is communicated with the ecological rice field area through a pipeline. Based on different nutrient requirements of each unit, agriculture and forestry wet compounding is taken as a core, and the opposite relationship between water, fertilizer and bait requirements of a rice field and a culture pond and tail water pollution treatment is converted into a coupled adaptive multi-element cooperative relationship.

The invention discloses a water area pollutant emergency treatment system and equipment in the technical field of water pollution treatment, and the system comprises a plurality of water quality monitoring modules which are used for collecting water quality factors of a covered area and generating real-time water quality data; the data collection module is used for acquiring, storing and forwarding real-time water quality data; the prediction module is used for analyzing and predicting the pollutant component evolution condition based on the real-time water quality data by using a big data model, and generating a pollutant component evolution condition graph of the water area; the emergency preprocessing scheme generation module is used for generating a corresponding preprocessing scheme and a preprocessing position based on the pollutant diffusion range diagram and the pollutant component evolution situation diagram; the biological filtration assemblies are used for being deployed at the pretreatment position and filtering and cleaning the water area. Plants aiming at specific pollutants are planted on the biological filtration assembly, and long-term ecological restoration can be achieved while water area pollutants are emergently treated.

The invention discloses a carbon dioxide hydrogenation methanation-cracking carbon preparation series method, which comprises the following steps: generating CH4 through a reaction of # imgabs0 # imgabs1 #, and realizing the production of a carbon material by adopting the technologies of condensation separation of CH4 and water vapor, CH4 cracking reaction of # imgabs2 #, cyclic utilization of hydrogen and the like. The process is composed of a carbon dioxide hydrogenation methanation reactor and a methane cracking reactor. In the methanation reactor, CO2 and H2 react under a low-temperature condition to generate CH4 and water vapor; cH4 and water vapor are separated by adopting a compressor condensation separation technology, and the separated CH4 is conveyed to a cracking reactor. In the methane cracking reactor, CH4 is cracked at a high temperature to generate H2 and a carbon nanomaterial, and then H2 is returned to the methanation reactor again. The separation of CH4 and water vapor at a relatively low temperature is realized in the tandem carbonization process through a low-temperature condensation technology; through low-temperature CO2 methanation and CH4 catalytic cracking, the content of CO2 is reduced, a high-quality carbon nanomaterial is obtained, and cyclic utilization of CO2 and H2 is realized.

The invention relates to a method for extracting high-purity astragalus polysaccharide. The method comprises the following specific steps: washing astragalus, drying and crushing into coarse powder; under a certain solid-liquid ratio, extracting astragalus polysaccharide by using ultrasonic waves; carrying out mixed enzymolysis on the extracting solution and cellulase, and terminating enzyme reaction through heating; and mixing the enzymatic hydrolysate with specific molecularly imprinted polymers (MIPs), specifically adsorbing the astragalus polysaccharide through a molecular recognition effect, and eluting and purifying by using a mixed solution of water and ethanol. In the preparation process of the MIPs, oligosaccharide fragments of astragalus polysaccharide, acrylamide, ethylene glycol dimethacrylate, potassium persulfate and lauryl sodium sulfate are dissolved in methanol, and free radical polymerization reaction is carried out under the protection of nitrogen. Experimental results show that the purity and the extraction rate of the astragalus polysaccharide extracted by the method are remarkably improved, and the method has the advantages of simplicity and convenience in operation, high efficiency, economy, environmental protection and the like.

The invention relates to a method for driving impurity iron to enrich and purify aluminum alloy return scrap and a product, the aluminum alloy return scrap is placed in a crucible, is heated in a resistance furnace and is subjected to heat preservation for a period of time, so that the return scrap is fully molten, and a melt is obtained; continuously preserving the heat of the melt, connecting two parallel electrodes with a pulse power supply, vertically inserting the two parallel electrodes into the melt, and preheating for a period of time; setting a first pulse voltage, a first pulse current and a first pulse frequency according to the impurity iron content of the aluminum alloy return scrap; second pulse voltage, second pulse current and second pulse frequency are set according to different heat preservation temperatures during melt electric pulse treatment, and electric pulse treatment is applied to the melt for a period of time in the heat preservation stage; and closing the resistance furnace and the pulse power supply after treatment, and cooling the melt along with the furnace to obtain a sample. The method effectively solves the problem of malignant accumulation of impurity iron elements in the aluminum alloy resource recycling process. The method is short in treatment time and high in iron removal efficiency, and the production cost can be greatly reduced.

An in-situ biogas purification method for anaerobic digestion of sludge based on exogenous hydrogen supply relates to the field of solid waste resource utilization and renewable energy technology. The purpose of the present invention is to solve the problems of low hydrogen solubility and insufficient carbon dioxide bioconversion in the biogas purification process, as well as the inhibitory effect of excessive hydrogen dosage on biogas production by anaerobic digestion of sludge. The present invention utilizes the anaerobic digestion process of sludge in an anaerobic environment to produce biogas, and adds hydrogen to the process by direct hydrogen input or zero-valent iron corrosion, so that hydrogen penetrates into the liquid phase. The hydrogenotrophic methanogens in the system use hydrogen as an electron donor and carbon dioxide in the biogas produced by anaerobic digestion of sludge as an electron acceptor to convert hydrogen and carbon dioxide into methane to achieve in-situ biogas purification. The present invention can obtain an in-situ biogas purification method for anaerobic digestion of sludge based on exogenous hydrogen supply.

The invention relates to a coalescence reinforced cyclone separation device and method for removing oil drops from gas. The device comprises a cylindrical barrel, the interior of the barrel is divided into an inlet cylindrical section provided with a tangential inlet, the lower portion of the inlet cylindrical section is sequentially provided with a first-stage rotational flow section, a second-stage rotational flow section and a bottom oil storage section which are coaxially communicated with one another, and the upper portion of the inlet cylindrical section is provided with a top filtering section coaxially communicated with the inlet cylindrical section; coalescence assemblies are attached to the inner walls of the inlet cylindrical section, the first-stage rotational flow section and the second-stage rotational flow section, a bottom coalescence triangle is arranged in the center of the bottom face of the bottom oil storage section, and a top filtering assembly is coaxially arranged in the top filtering section; the cyclone separation and coalescence separation technologies are combined, centrifugal force and the adhesion effect of coalescence fibers are utilized, fine oil drops are captured and coalesced into large oil drops, the large oil drops finally flow into the bottom oil storage section, gas purification is achieved, and oily liquid drops small in size and wide in particle size range in gas are effectively separated. The device has the advantages of high separation precision, high efficiency, compact structure, convenience in maintenance and the like.

The invention discloses a purification treatment system and method for electric wire and cable combustion waste gas in the technical field of cable combustion tests. The purification treatment system comprises a gas washing module, a purification module and an adsorption box which are sequentially arranged in the waste gas flowing direction. The gas washing module comprises a spraying box, a rotational flow tower and a water tank, the spraying box is mounted above the rotational flow tower, a gas phase outlet in the top of the rotational flow tower is communicated with the bottom of the spraying box, the water tank is mounted below the rotational flow tower, and the top end of the water tank is communicated with a liquid phase outlet in the bottom of the rotational flow tower; the purification module comprises a washing box, a communicating vertical pipe and a treatment box, the treatment box is installed under the washing box, and the top of the treatment box communicates with the bottom of the washing box through the communicating vertical pipe; a gas inlet of the adsorption box is communicated with a gas outlet in the bottom of the treatment box. According to the invention, complete purification of waste gas generated by wire and cable combustion is realized, the treatment efficiency of the waste gas generated by wire and cable combustion can be improved, and the operation and maintenance cost can be reduced.

The invention discloses a refrigerant recovery device of refrigeration equipment, and relates to the technical field of refrigerant recovery, the refrigerant recovery device comprises a heat dissipation explosion-proof mechanism, the heat dissipation explosion-proof mechanism comprises an air inlet guide plate, the top end of the air inlet guide plate is fixedly connected with a heat dissipation bin, and the bottom end of the inner wall of the air inlet guide plate is fixedly connected with two sets of fans; a plurality of sets of discharging ports are formed in the side wall of the air inlet guide plate, a plurality of sets of containing grooves corresponding to the discharging ports are formed in the inner wall of the heat dissipation bin, and a plurality of sets of ventilation buffer grooves located outside the containing grooves are formed in the inner wall of the heat dissipation bin. By means of airflow and copper sheets, internal energy accumulated in the process that a refrigerant is compressed into the recycling tank is consumed, explosion caused by too high temperature of the recycling tank is avoided, and a ventilation buffer groove is located in a cavity in a heat dissipation bin and located in the outer walls of multiple sets of containing grooves, so that when collision occurs, the heat dissipation bin is prevented from being blocked. Impact force can be consumed through deformation of the ventilation buffer grooves, and the recovery tank is prevented from being damaged and broken.

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 synthesis of photosensitive organic compounds, and discloses a novel hydroxyl-containing dihydropyridine photosensitizer and a preparation method and application thereof.The method comprises the steps that 5-hydroxy-2-nitrobenzaldehyde serves as an initial raw material and reacts with 3-aminocrotonic acid methyl benzoate under the catalytic action of trifluoroformic acid, and a reaction product is obtained; precipitating, filtering and recrystallizing the product to obtain a photosensitive dihydropyridine monomer; the preparation method comprises the following steps: by taking 3, 5-dibromophenol as an initial raw material, introducing halogenated straight-chain alkyl of which the tail end is halogen into a hydroxyl position on the 3, 5-dibromophenol; dissolving a photosensitive dihydropyridine monomer and the intermediate A, and carrying out substitution reaction under the action of alkali to prepare an intermediate B; and carrying out Suzuki coupling reaction on the intermediate B and 4-hydroxymethyl phenylboronic acid to finally obtain the novel dihydropyridine photosensitizer containing hydroxyl. The novel hydroxyl-containing dihydropyridine photosensitizer (DHPDO) is good in compound stability, the preparation process is simple and convenient, the stability of an intermediate product is high, and after-treatment purification is low in toxicity and harmless.

The invention relates to a satellite-borne panchromatic-multispectral-hyperspectral remote sensing image integrated fusion method, which realizes purification of spatial high-frequency detail information and discriminative spectral information contained in a multi-source input image by means of the characteristics of a multispectral image, so that two pure characteristic components, namely a spatial component and a spectral component, are converged; the method is used for subsequent reconstruction; in spectral feature reconstruction, aggregation features are used as main branches, multi-scale coding features are used for detail injection, meanwhile, interactive reasoning is carried out on spectral features through channel expansion and splitting, upper and lower related clues are obtained, and finally an ideal image is generated. And the multi-source remote sensing space-spectrum high-fidelity fusion requirement under large spatial resolution difference and spectrum difference is met.

The invention relates to a preparation method and application of a wall coating type enzyme-loaded microchannel reactor. The method comprises the following steps: mixing tetramethyl orthosilicate, methyltrimethoxysilane and methanol to obtain a solution A; deionized water, polyethylene glycol, a sodium fluoride aqueous solution and a dialyzed lipase solution are mixed to obtain a solution B, the solution B and the solution B are mixed for 3-10 minutes in an ice bath environment to obtain a solution C, the solution C is introduced into the pretreated microchannel through an injection pump, after incubation is conducted for 10-60 minutes, nitrogen is adopted for purging, redundant sol-gel is removed, and then the solution C is put into a drying oven to be dried; the catalyst is used for hydrolysis reaction of grease and various ester exchange and esterification reactions. The method can be carried out in a mild environment, and has higher conversion rate and shorter reaction time.

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 utility model relates to the technical field of pigment filtering, in particular to a filtering device suitable for pigment production, which comprises a sealing barrel, fixing structures, a sealing cover and a filtering plate, the left side and the right side of the sealing barrel are both provided with the fixing structures, the top of the sealing barrel is provided with the sealing cover, and the filtering plate is arranged in the sealing barrel. The fixing structure comprises a fixing base, a rotating shaft, a fixing rod, a threaded rod, a limiting ring, a rotating ring and a fixing buckle. According to the utility model, the fixing structure is arranged, and the sealing cover can be quickly mounted and dismounted through the fixing structure, so that the magnetic bar and the filter plate can be conveniently cleaned. The mineral pigment separation and purification device is provided with the magnetic bar and the filter plate, iron impurities in the pigment can be adsorbed on the magnetic bar through the magnetic bar, solid particles and liquid can be separated through the filter plate, a pigment solvent can pass through the aperture of the filter plate, and the solid particles are left, so that the mineral pigment is separated and purified.

The invention relates to the field of environmental chemistry and biological sample analysis, in particular to an analysis method for detecting oxidative stress biomarkers in urine. The analysis method capable of simultaneously detecting dityrosine, 8-hydroxyguanosine, 8-hydroxydeoxyguanosine and 4-hydroxynonenal mercaptouric acid in human urine is provided on the basis of liquid chromatography-tandem mass spectrometry, effective purification of a urine sample is achieved through specific pretreatment, the matrix effect is reduced, and the detection sensitivity is improved. And specific liquid chromatogram parameter conditions are combined, so that simultaneous detection of the four oxidative stress biomarkers is realized. The method is good in selectivity, high in sensitivity and high in detection speed, the problem that polar and non-polar components cannot be measured at the same time at present is solved, the contained oxidative stress biomarkers are more comprehensive and more reasonable, and the oxidative stress damage condition of the organism can be better reflected.

The utility model relates to the technical field of direct current system rectification module cleaning, in particular to a dust collecting device which comprises a flexible sleeve, a communicating pipe, a collecting box, a filtering piece and a non-return mechanism, and the flexible sleeve is used for being arranged on an air outlet of a rectification module case in a sleeving mode; one end of the communicating pipe is communicated with the inner cavity of the flexible sleeve; the collecting box is provided with an air inlet and an air outlet; the air inlet is connected with the other end of the communicating pipe; the filtering part is arranged in the collecting box and is arranged between the air inlet and the air outlet, so that an inner cavity of the collecting box is divided into a foul air cavity and a clear air cavity; the non-return mechanism is arranged in the foul air cavity and / or an inner cavity of the communicating pipe and used for preventing airflow in the foul air cavity and the communicating pipe from flowing back into the flexible sleeve. According to the utility model, the problem that dust is easy to diffuse to a power distribution room when the rectification module is blown and cleaned in the prior art is effectively solved.

The invention provides an intelligent street lamp for cities, and belongs to the technical field of illumination, the intelligent street lamp for cities comprises a lamp pole, an illumination module, a spraying assembly, a purifying assembly and a collecting assembly, and the illumination module is fixedly arranged on the periphery of the top of the lamp pole; the spraying assembly comprises a spraying head arranged at the top end of the lamp pole in a lifting mode, a water storage tank with an upward opening and located in the lamp pole and a water supply device communicating the spraying head with the water storage tank. The purification assembly comprises a filter screen arranged on the side wall of the lamp pole, a filter element located in the lamp pole and equal to the filter screen in height, an air outlet formed in the periphery of the lamp pole and a wind power device communicating the filter screen with the air outlet. The collecting assembly is arranged at the bottom of the lamp pole and used for collecting dust at the filter element and sediment in the water storage tank. The intelligent street lamp for the city not only can be normally used for illumination, but also can improve the environment.

An exhaust aftertreatment device includes a housing, an exhaust inlet tube, a carrier assembly, and a silencing assembly. The shell comprises an inner cavity and a first baffle located in the inner cavity. The first baffle is provided with a first concave part, and the first concave part forms a first airflow cavity. The exhaust gas inlet pipe is fixed to the shell, and the exhaust gas inlet pipe is configured to be connected with a manifold of an engine. The carrier assembly comprises a second baffle and a post-processing carrier device erected on the second baffle. The second baffle and the first baffle are arranged in a spaced mode, the inner cavity comprises an air inlet cavity located between the first baffle and the second baffle, the exhaust inlet pipe is communicated with the air inlet cavity, and the air inlet cavity is communicated with the first airflow cavity. The silencing assembly is at least partially located in the shell. By means of the arrangement, the exhaust aftertreatment device is of an integrated design which is compact in structure.

The invention relates to the technical field of flue gas purification, in particular to glass fiber preparation electric furnace flue gas transferring and discharging equipment which comprises a transferring and discharging cylinder, a spraying unit, a dust removal unit and a purification unit. According to the invention, the following problems in the flue gas treatment process in the prior art can be solved: only particulate dust in the flue gas can be removed, and volatile substances and harmful gases cannot be filtered out, so that the treated flue gas still pollutes the environment; when flue gas enters the purification tower, dust in the flue gas cannot quickly precipitate downwards and is easy to fly, so that the environment is polluted, and the health and safety of workers are influenced; according to the flue gas purification device, flue gas can be sequentially subjected to spraying, dust removal filtering and adsorption purification through the spraying unit, the dust removal unit and the purification unit, so that dust, particulate matters, volatile substances and other harmful gases in the flue gas can be effectively removed, and the flue gas purification effect is ensured; and by adopting a spraying mode, raised dust generated in the purification process of the flue gas can be reduced.

The invention discloses a saline-alkali soil remediation system capable of reducing alkali and eliminating salt and a laying method of the saline-alkali soil remediation system, and relates to the technical field of saline-alkali soil remediation. The anti-seepage and salt-isolating structure comprises an anti-seepage and salt-isolating layer, and the anti-seepage and salt-isolating layer is pre-buried in the soil main body so as to divide the soil main body into a surface layer and an inner layer which are arranged in the vertical direction; at least part of the negative pressure air extracting device is deeply arranged in the surface layer; the salt discharging device comprises at least one salt discharging pipeline, the salt discharging pipeline is pre-buried in the surface layer and is communicated with the negative pressure air extractor, the part, facing the leaching device, of the outer surface of the salt discharging pipeline forms a water absorption side, and a plurality of water absorption holes are formed in the water absorption side; and a non-woven fabric is arranged in each water absorption hole and is used for leacheate to enter. The system can effectively repair the saline-alkali soil, so that the salinity of the saline-alkali soil is stabilized at the treatment requirement level.

The invention discloses a method for removing Ba < 2 + > and Ca < 2 + > in LiCl-KCl electrolyte, and belongs to the technical field of high-temperature molten salt impurity removal. The method comprises the following steps: adding a curing agent into a LiCl-KCl electrolyte containing one or two ions of Ba < 2 + > and Ca < 2 + > in a molten state for reaction to generate a high-melting-point salt solid, and removing the contained Ba < 2 + > and Ca < 2 + > through solid-liquid separation to realize purification of the electrolyte. The method is simple in treatment process, short in time consumption and low in treatment cost; in addition, according to the method, treatment can be directly carried out in original production equipment, the treated electrolyte can be directly used for production, and additional treatment equipment is not needed.

The invention discloses a high-salt fly ash resourceful treatment device, and relates to the technical field of high-salt fly ash treatment.The high-salt fly ash resourceful treatment device comprises a bottom plate, a stirring assembly used for mixing fly ash and water is arranged at the position, close to the edge of one side, of the top of the bottom plate, and a backflow assembly used for recycling water is arranged at the position, close to the center, of the top of the bottom plate; the backflow assembly comprises a bearing frame; according to the high-salt fly ash resourceful treatment device, after salt-containing water completely enters the pressurizing bin, a fifth electromagnetic valve is closed, gas is conveyed into the pressurizing bin, a piston is driven to move forwards, so that moisture in salt water passes through a semi-permeable membrane body, and a second electromagnetic valve is opened; the purified water source enters the water tank again through the return pipe, so that the water source is recycled, the salt in the water is purified, and the problem that in the prior art, a large number of water sources need to be consumed and resources are wasted in the process of extracting the salt in the high-salt fly ash is solved.

The invention relates to the technical field of hydrogen purification, and particularly discloses a hydrogen purification device which comprises an outer cylinder, a partition plate is connected to the middle of an inner cavity of the outer cylinder, first-stage purification modules are symmetrically arranged on the partition plate up and down, moisture and carbon monoxide in gas are removed through a third-stage purification module and a second-stage purification module respectively, and the first-stage purification modules and the second-stage purification modules are used for purifying hydrogen. Carbon dioxide mixed in hydrogen is removed, so that purification of the hydrogen is achieved, the purification efficiency of the hydrogen is monitored, when aluminum oxide, zeolite and activated carbon reach adsorption saturation, resistance borne by gas passing through aluminum oxide, zeolite and activated carbon is increased, so that the gas passing rate is reduced, monitoring is conducted through a gas flow sensor, and the monitoring accuracy is improved. When the gas flow is reduced, the other group of the first-stage purification module, the second-stage purification module and the third-stage purification module is respectively switched, and used aluminum oxide, zeolite and activated carbon are subjected to high-temperature heating regeneration, so that the continuous operation of the device and the hydrogen purification effect are ensured.

The present invention provides a zero-discharge seawater aquaculture device for shellfish and algae symbiosis applied to the field of shellfish and algae aquaculture, comprising an incubation box, a plurality of sealing doors are provided on the side walls of the incubation box, the incubation box is arranged in an L shape, a purification device is arranged inside the incubation box, the purification device comprises a control box fixed on the inner wall of the incubation box, a motor is arranged inside the control box, a water purification pipe is installed on the output end of the motor, a disinfection lamp is arranged in a circumferential array on the circumference of the water purification pipe, two groups of the purification devices are arranged, the two groups of the purification devices are symmetrically installed on the inner wall of the incubation box, the inclination angle of the purification device is 45°, an L-shaped rotating plate is arranged on one side of the purification device, a rotating shaft is arranged inside the L-shaped rotating plate, and the present invention realizes multiple functions such as water culture of shellfish, shellfish collection, cleaning of the incubation plate and purification of the water body through the above-mentioned device, and comprehensively improves the practicality and adaptability of the device.

The utility model relates to an automatic feeding device of a reaction kettle, which comprises a reaction kettle body, the top of the reaction kettle body is fixedly provided with a feeding pipe, the outer surface of the feeding pipe is connected with a discharging pipe, the outer surface of the discharging pipe is fixedly provided with a conveying cylinder, and the outer surface of the conveying cylinder is fixedly provided with a conveying structure. And a functional box is fixedly mounted on the outer surface of the conveying cylinder. When the automatic feeding device of the reaction kettle is used, feeding is carried out through a feeding pipe, and materials need to be quantified, a rotating rod is rotated, the rotating rod drives a driving gear to rotate, the driving gear drives a driven gear meshed with the driving gear to rotate, then a threaded rod is driven to rotate synchronously, and a threaded block can be driven to move up and down through rotation of the threaded rod; and the baffle is driven to move downwards in cooperation with the vertical rod, and when the baffle moves downwards to the position between the two limiting blocks, the baffle seals the space between the two limiting blocks, so that materials cannot fall off, and quantitative feeding is achieved through the device.

The invention discloses a copper nanosheet and a preparation method and application thereof.The method comprises the steps that a surfactant and a coordination agent are added into copper salt, the copper salt is reduced into nucleuses through a reducing agent, crystal nucleuses serve as seeds for nanocrystal growth, non-flaky crystals are etched away in the oxidation etching process of an etching agent, and the copper nanosheet is obtained; and the surface of the copper nanosheet is passivated by the surfactant and the coordination agent to protect flaky seed crystals of copper, so that the copper nanosheet is obtained. According to the method, a seed crystal screening mechanism is introduced, so that a non-sheet material can be effectively etched, a sheet structure is reserved, the seed crystal concentration is regulated and controlled while the yield of the copper nanosheets is improved, and precise regulation and control of the size are further realized.

The invention discloses a rotary gas membrane separation device and a wastewater deammonification system thereof, belonging to the technical field of wastewater treatment. The rotary gas membrane separation device comprises an inner sleeve and an outer sleeve which are rotatably connected, and the inner sleeve and the outer sleeve are divided into a first exhaust chamber, a heating chamber and a second exhaust chamber by a sealing bearing; a water inlet pipe and a water outlet pipe are arranged on the inner sleeve, and a first gas collecting chamber, a degassing chamber and a second gas collecting chamber are formed in the inner sleeve by a check valve, and a separation filter element is arranged in the degassing chamber. The wastewater deammonification system comprises a wastewater tank, a liquid supply bracket, a liquid discharge bracket, a mounting bracket, a rotary gas membrane separation device and a rotating mechanism, and the liquid supply pipe exchanges heat with the gas discharged from the outer sleeve through a heat exchanger. A low-boiling point physical evaporation treatment technology is formed, which can be widely used for the separation of elements below the boiling point of water (such as ammonia element), and the concentration of recovered ammonia is ensured. The rotation of wastewater can prolong the treatment time, prevent particulate matter from clogging the membrane pores, and ensure the element recovery efficiency and recovery rate.