40results about How to "Guaranteed enrichment" patented technology

The invention discloses an automatic-control-based denitrifying methane anaerobic oxidizing bacteria enrichment system, which comprises a methane inlet gas flow meter, an argon inlet gas flow meter, an outlet gas flow meter, a methane inlet automatic regulating valve, an argon inlet automatic regulating valve, a water inlet automatic regulating valve, an acid and alkali liquor input automatic regulating valve, a flange, a dissolved oxygen probe, a pH probe, a methane probe, a mechanical stirring blade, a reactor main body, a gas uniform distributor, a dissolved oxygen alarm, a methane alarm, a data acquisition and analysis regulating device, a biomass interceptor and a reflux pump. The invention has the advantages that: 1) the system is provided with the gas uniform distributor and the mechanical stirring blade, so that a substrate can be fully mixed with microorganisms easily, and high-efficiency enrichment is realized; 2) parameters are monitored and fed back in real time in an automatic control mode, the normal operation of the enrichment system is ensured, and manpower is reduced simultaneously; 3) the system is provided with the biomass interceptor, so that biomass is prevented from being lost; and 4) the system has a concise structure and is easy to process and convenient to universally apply.

The invention discloses a stainless steel pickling waste water resource recycling method. The method includes the steps of firstly, conducting reduced pressure evaporation on mixed acid of hydrofluoric acid and nitric acid so that acid recycling can be achieved; secondly, separating out and recycling iron in the solution; thirdly, gathering diluted acid, nickel and chromium in a circulating mode; fourthly, recycling diluted acid through a film method; fifthly, conducting neutralization and iron recycling; sixthly, separating nickel and chromium and recycling nickel; seventhly recycling chromium. By means of the method, efficient recycling of valuable metal resources such as nitric acid, hydrofluoric acid, iron, chromium and nickel is achieved, purified water can stably reach the standard, and the method is remarkable in economic benefit.

The invention discloses a method for testing the destructive effect and the performance impact of alkali metal and zinc vapor to coke. The method comprises the following steps: uniformly mixing excessive active carbon powder and alkali metal carbonate or zinc oxide, arranging the mixture in a corundum crucible internally provided with a step, arranging a porous corundum gasket on the step in the crucible, arranging a reacting coke sample on the gasket, covering a cover, keeping a container in a sealing state; arranging the container in a constant-temperature region of a muffle furnace, raising the temperature to 1300 DEG C at a certain rate, keeping the temperature for 90min to ensure that metal steam is completely absorbed by coke; after reacting, recording the mass of a coke sample with the particle size being more than 23mm, calculating the specific gravity of the pulverized coke; and testing a thermal state performance of a sample which is eroded by metal vapor. The method is capable of singly representing a direct destructive effect of the metal vapor to the coke, is beneficial to finding a relationship between the steam enrichment and the coke performance, and provides a quantization basis for reasonably controlling an alkali load and a zinc load which are charged in a blast furnace.

The invention provides a pretreatment method for alkaloid in Anisodus tanguticus. The method is suitable for sample pretreatment in separation, preparation and qualitative and quantitative operation of alkaloid in Anisodus tanguticus. The method mainly includes pulverizing Anisodus tanguticus medicinal material, adding ethanol for extraction, collecting extracting solution, concentrating to obtain extract, tanking the extract, performing selective enrichment to the alkaloid in crude alkaloid by silica gel-based strong cation exchange (SCX) solid phase extraction (SPE) material to obtain alkaloid enriched segment for use in separation analysis and separation preparation of alkaloid in Anisodus tanguticus. The invention has good selectivity and high alkaloid content in fraction, and can greatly improve separation analysis and separation preparation efficiency of alkaloid in Anisodus tanguticus. The pretreatment method has high repeatability and good operability in operating process, is easy for realizing standardization and industrialization, and has a certain directing significance for selectively obtaining alkaloid enriched fraction from Anisodus tanguticus.

The invention provides a method for low energy consumption sewage treatment with two stages of pretreatment and micro aeration, and the method comprises the following steps: a) pretreatment of sewage, that is adsorption of organic matters and suspension substances in sewage by microorganisms; b) settlement of sewage; c) denitrification of sewage, that is transformation of ammonia nitrogen in the sewage into nitrite nitrogen by nitrite bacteria, and transformation of ammonia nitrogen and nitrite nitrogen into nitrogen at the same time by anaerobic ammonium oxidation bacteria for realizing denitrification. A sewage treatment system provided by the invention comprises a pretreatment pool, a pretreatment sedimentation basin, a denitrification pool, a blower, a controller and a detector; the blower is used for realizing aeration, and the detector is used for detecting water quality, and the controller controls the operation of the sewage treatment system. The sewage treatment system and method provided by the invention transform most nitrogen elements into nitrogen by using denitrification of the anaerobic ammonium oxidation bacteria, so that the nitrogen element is departed from the water body and pollutants indeed. During a sludge treatment phase, organic matters are transformed into energy by anaerobic fermentation, and the energy can considerably supplement the electric quantity consumption of the sewage factory itself, and the activity of the denitrifying bacteria is kept.

The invention discloses a processing method of functional brown sugar rich in polyphenols. The processing method comprises following steps: sugarcane is juiced so as to obtain a raw material liquid, lime milk is added, and an obtained mixture is heated so as to obtain a heated raw material solution; a first-grade ceramic membrane is used for filtering so as to obtain a first grade membrane clear juice and a first grade membrane condensed juice; a second membrane is used for filtering so as to obtain a second membrane grade clear juice and a polyphenols-enriched second grade membrane condensed juice; and the polyphenols-enriched second grade membrane condensed juice is used for producing the functional brown sugar rich in polyphenols, wherein at least one or a plurality of ingredients selected from colla corii asini, red date, longan, Angelica sinensis, Radix Codonopsis, Chinese wolfberry, bulbus lilii, herba leonuri, and ginger are taken as functional ingredients, and are decocted with water so as to obtain a solution, or dried and smashed into powder, the polyphenols-enriched second grade membrane condensed juice is subjected to evaporation concentration and is mixed with the solution or the powder, and sugar boiling, graining, moulding, and packaging are carried out so as to obtain the functional brown sugar rich in polyphenols. According to the processing method, effective enrichment of polyphenols is realized, a plurality of functional ingredients which can be taken as both medicine and food are added, the content of polyphenols is 4 to 8 times higher than that of brown sugar obtained via traditional technology, and brown sugar quality and nutrient value are improved.

The invention relates to a method for extracting antrodia camphorata oil from antrodia camphorata sporophore. The method comprises the following steps: firstly drying and grinding antrodia camphorata, and successively adding into a slant medium and a shaking medium for culture, so as to obtain an antrodia camphorata sporophore fermentation liquid; then performing vacuum condensation on the sporophore fermentation liquid to have a volume accounting for 1 / 4-1 / 5 of the original volume, drying to obtain a constant weight, crushing and sieving; and finally packing the sporophore subjected to crushing and sieving into an extraction kettle of a supercritical CO2 extraction apparatus, adding an entrainer to extract antrodia camphorata oil, after extraction, successively transferring into a separation kettle I and a separation kettle II for separation, performing centrifugal separation on the mixed liquid subjected to separation at a centrifugation speed of 5000-8000 r / min, and collecting antrodia camphorata oil. According to the method, the sporophore fermentation liquid is condensed under the condition of vacuum, so that grease oxidation is avoided, and the sample is guaranteed to be condensed at a relatively low temperature. Temperature and pressure for extraction and separation are optimized and limited, so that maximum production and sufficient extraction and separation of antrodia camphorata oil are guaranteed.

The invention discloses a super-large pressurized water reactor core long-cycle refueling loading method. The whole reactor core adopts a total of 221 sets of fuel assemblies, the core active sectionheight is 14 feet, the thermal power is not less than 4588 MWt, and 80-116 new fuel assemblies are added every time. The enrichment ratio of the new fuel assemblies can be flexibly adjusted accordingto the specific requirements of the cycle length, and the adjustment range of not less than 55 EFPD can be realized. By adding or subtracting new fuel assemblies, an additional maneuver cycle of about+ / - 30 EFPD can be realized. The number of Gd-loaded fuel rods carried in the new fuel assemblies and the mass fraction of gadolinium can be determined according to the needs of flattened reactor core power distribution. The axial partitioning of the new fuel assemblies can be set according to the axial power distribution change characteristics of the reactor core. The method can meet the requirement of nuclear power plant transition to 18-24 months long-cycle fuel management, can increase electric energy production, reduce power plant investment, and suppress reactor core axial power oscillation and improve reactor core axial safety characteristics.

The invention belongs to the field of ammonia nitrogen-containing wastewater treatment, and discloses a method for rapidly starting completely autotrophic ammonia removal. The method is a wastewater treatment method, and comprises the following steps: 1, seed sludge preparation; 2, seed sludge inoculation; 3, biofilm colonization; and 4, running starting. The method for rapidly starting completely autotrophic ammonia removal has the advantages of shortened starting period, reduction of the aeration rate and the hydraulic retention time, improvement of the adaptability of microbes in sludge in a large water temperature change range, reduction of the investment cost of nutrient demands in the domestication process of sludge, substantial saving of the starting period, and improvement of the running stability of a system.

The invention relates to a production line of black sugar rich in polyphenol. Squeezing equipment, impurity removal and filtration equipment, a preliming cylinder, a tubular heat exchanger and a steam heater of the production line are sequentially connected, a lime milk storage cylinder is connected with the preliming cylinder, the outlet of the steam heater is connected with the inlet of a primary ceramic membrane, the concentrated solution outlet of the primary ceramic membrane is connected with the preliming cylinder by virtue of full charging equipment and a plate-and-frame filter press, and the clear solution outlet of the primary ceramic membrane is connected with the inlet of a secondary nanofiltration membrane; the concentrated solution outlet of the secondary nanofiltration membrane is connected with black sugar packaging equipment by virtue of vacuum evaporation concentration equipment, constant pressure concentration equipment, a nucleation box and a moulding die sequentially; and the clear solution outlet of the secondary nanofiltration membrane is connected with a white granulated sugar production line. The production line of the black sugar rich in polyphenol has the advantages that two stages of ceramic membranes with different membrane pore diameters are adopted for filtering sugarcane juice, concentrated juice filtered by two stages of membranes is adopted for producing the black sugar rich in polyphenol, a functional ingredient, namely polyphenol, in the concentrated juice obtained by virtue of the two stages of membranes is effectively enriched, enrichment efficiency is improved by 4-8 times compared with the traditional production technology, and quality and nutritional value of the black sugar are improved.

The invention discloses a sampling device of a chromatographic on-line analysis system and a method for processing samples by using the same. The device includes a sampling pipeline, a tubular passage connecting the sample to be tested and a chromatograph, and the device is used during the process of transporting the sample to be tested. It is directly heated and / or cooled to realize the processing of the sample to be tested; the thermocouple is connected with the sampling pipeline and the controller, and is used to measure the temperature of the sampling pipeline; the controller, according to the substance of the sample to be tested The transmission requirement and the measured temperature value of the sample injection pipeline control the temperature adjustment of the sample injection pipeline. The device ensures the enrichment and rapid release of substances with different molecular weights, and at the same time, the heat preservation of the pipeline is uniform, which avoids the residue of the substance to be tested before entering the chromatograph, and improves the detection accuracy.

The invention provides a preparation method for a titanium dioxide photocatalyst. The preparation method comprises the following steps: preparing a molybdenum sulfate nano-cluster solution; dispersingnanometer titanium dioxide and the molybdenum sulfate nano-cluster solution in absolute ethyl alcohol, carrying out a reaction at a room temperature, and carrying out centrifuging, washing and dryingso as to obtain the titanium dioxide photocatalyst, wherein the preparation method for the molybdenum sulfate nano-cluster solution comprises the following steps: dissolving a sulfur source and a molybdenum source in deionized water, carrying out a reaction at 50 to 110 DEG C, and carrying out centrifuging and washing for a plurality of times so as to obtain the molybdenum sulfate nano-cluster solution. According to the invention, through control of conditions like a proportion of the sulfur source and the molybdenum source, a reaction temperature, reaction time and washing times, the clustersize of a molybdenum sulfate nano-cluster can be controlled, so adjustment and control of cocatalyst activity are realized.

The invention discloses a vapor deposition method for silicon-doped graphene, which comprises the steps: S1, adding graphene powder into absolute ethyl alcohol, performing a sealed ultrasonic reactionfor 30 to 60min, and after cooling, obtaining graphene suspension; S2, adding polyethylene glycol into the graphene suspension, mechanically stirring to a completely dissolved state to obtain graphene dispersed alcohol solution; S3, placing the graphene dispersed alcohol solution into a reduced pressure distillation reaction kettle to perform a reduced pressure distillation reaction for 2 to 5h to obtain viscous fluid, and drying to obtain fluffy graphene blocks; S4, adding the graphene blocks into a reaction kettle, heating and standing for 20 to 40min, then filling silane gas to perform a reaction for 3 to 8h, and naturally cooling to obtain graphene adsorption blocks; S5, adding the graphene adsorption blocks into the absolute ethyl alcohol to perform an ultrasonic reaction for 30 to 60min, and after filtering, obtaining silicon-doped precipitates; S6, performing a heating and pressurizing reaction on the silicon-doped precipitates in a hydrogen reaction kettle for 3 to 6h, and after cooling, obtaining the silicon-doped graphene. The vapor deposition method is simple in process, high in controllability of a silicon doping rate and applicable to extensive production.

The invention discloses a method for preparing a high-strength corrosion-resistant ductile iron pipe. The method comprises the following steps: cleaning the inner surface of the ductile iron pipe; painting the inner surface of the ductile iron pipe with an adhesive layer; spraying cement lining mortar onto the adhesive layer; after smearing of the cement lining mortar is qualified, performing preservation; after finish of preservation, spraying an epoxy resin layer onto the cement lining mortar; and after normal-temperature drying of the epoxy resin layer, painting the upper surface of the epoxy resin layer with an un-fired ceramic layer. Preservation includes two stages of natural preservation and steam preservation which are performed successively. Painting of cement mortar needs to be performed in a uniformly stirred state, and the ductile iron pipe is rotated at a high speed in the painting process. By adoption of the method, the firmness of a cement mortar lining layer is enhanced, cracks are reduced, the service life of the ductile iron pipe is prolonged, and the comprehensive cost is lowered.

A polyphenol-rich brown sugar production technology includes the following steps that sugarcanes without sugarcane tips and sugarcane leaves serve as the raw material, are juiced and subjected to primary impurity removal, and a raw material solution is obtained; lime milk is added into the raw material solution to adjust the pH to be 7.0-7.5, and then the mixture is heated to 80-90 DEG C to obtain a heated raw material solution; a first-stage ceramic membrane with the aperture of 50-200 nm is used for filtering the heated raw material solution, and first-stage membrane clear juice and first-stage membrane concentrated juice are obtained; a second-stage membrane with the molecular weight cut-off being 1-5 kDa is used for filtering the first-stage membrane clear juice, and second-stage membrane clear juice and phenolic-substance-enriched second-stage membrane concentrated juice are obtained, wherein the second-stage membrane concentrated juice is used for producing polyphenol-rich brown sugar. The two stages of ceramic membranes with different membrane aperture sizes are used for filtering sugarcane juice, the second-stage membrane is used for filtering the concentrated juice to produce the polyphenol-rich brown sugar, the functional components, namely phenolic substances, in the second-stage membrane concentrated juice are effectively enriched, enrichment is 4-8 times that of a traditional production technology, and quality and nutritional value of the brown sugar are improved.

The invention relates to an intelligent regulation and control system and a method for preparing high-added-value products from SO2 absorption by-products, and the system comprises a flue gas purification cooling subsystem, a flue gas desulfurization subsystem, an ammonium bisulfite refining subsystem, a hydroxylamine sulfate preparation subsystem and a high-added-value product preparation subsystem which are sequentially arranged, the flue gas purification cooling subsystem and the flue gas desulfurization subsystem are arranged in a flue between an SCR denitration system and a power plant chimney, and the flue gas desulfurization subsystem, the hydroxylamine sulfate preparation subsystem and the high value-added product preparation subsystem are respectively connected with an intelligent regulation and control subsystem. According to the invention, multi-means such as flue gas purification and cooling, segmented efficient desulfurization, ammonium bisulfite refining, high-added-value product preparation, intelligent multi-factor regulation and control and the like are adopted, so that full-process multi-means matching optimization control such as flue gas pre-purification and washing-ammonium bisulfite oxidation inhibition-oxime intermediate refining and the like is realized; and preparation of high-added-value products such as finished oxime is realized at low cost at the same time of realizing high efficiency SO2 removing.

A rare earth permanent magnetic material comprises Ce base phase alloy which is expressed by weight percentage as (CexRe1-x)yCo0.5Cu0.2Al0.4FebalanceB0.95, wherein x is larger than or equal to 0 and less than or equal to 15wt%, and y is larger than or equal to 28.5wt% and less than or equal to 30.5wt%. The rare earth permanent magnetic material further comprises grain boundary Ce alloy which is expressed by weight percentage as CezFebalanceM15, wherein z is larger than or equal to 50wt% and less than or equal to 70wt%, and M represents added elements of Cu, Co and Al. A preparation method of the rare earth permanent magnetic material includes: respectively compounding and smelting the Ce base phase alloy and the grain boundary Ce alloy by component ratio and respectively coagulating the Ce base phase alloy and the grain boundary Ce alloy rapidly for obtaining casting strips; mixing the Ce base phase alloy and the grain boundary Ce alloy in proportion, and keeping heat diffusion treatment for 4-25h at 500-900 DEG C in vacuum or pressurized argon environment; performing oriented molding after performing hydrogen demolishing and airflow powder grinding on the mixed casting strips after the heat diffusion treatment, and sintering the mixed casting strips into a permanent magnet. The heat diffusion treatment guarantees that Ce is gathered in a grain boundary as much as possible, guarantees performance of the magnet, increases an adding proportion of the Ce, reduces material cost, and improves product competitiveness.

The invention relates to a microorganism sampling device, and aims to provide a seabed low-pollution type microorganism multi-membrane sampling device. The device comprises a pressure compensation device, a sampling mechanism, a speed reducing and torque increasing mechanism and a driving device, the sampling mechanism comprises a sampling cavity outer cylinder and a sampling cavity inner cylinder which are mounted in a nested manner, a filter membrane fixing shaft penetrates through the axial center, and a plurality of groups of filter membrane structures are arranged on the filter membrane fixing shaft in parallel; one end of the filter membrane fixing shaft is connected with a driving device through a speed-reducing torque-increasing mechanism, and the sampling cavity inner cylinder is driven to rotate around the shaft in the sampling cavity outer cylinder through the speed-reducing torque-increasing mechanism, so that relative intercommunication or staggered sealing of the inner and outer water inlet holes is realized; and the pressure compensation device is connected with the cavity of the sampling cavity inner cylinder. According to the invention, a rotatable opening and closing double-cylinder structure is used as a main sampling component, the sampling cavity can be always kept closed in the lowering and recycling processes, and an open environment is formed only in the seabed rotating inner cylinder at a preset depth; impurity pollution can be effectively prevented, and it is ensured that a pure microbial film sample at the target depth is obtained.

The invention discloses a separation method for indium leachate of a waste liquid crystal display. The separation method comprises the following steps: preparing an acid leaching solution by using a disassembled and broken indium-containing glass sheet of a waste liquid crystal display panel; slowly adding caustic soda into the obtained acid leaching solution for neutralization to adjust a pH value, separating out brown rubber substances, and filtering out and recovering separated impurities; filtering the acid leaching solution, and adding an organic phase into the filtered acid leaching solution so as to prepare an organic phase extract containing indium; adding a H2SO4 solution to wash the organic phase extract; and carrying out back extraction on the indium-containing organic phase extraction to obtain an indium-containing water-phase extract. According to the invention, the efficiency of recovering indium through acid leaching extraction is relatively high, the recycling cost of the extracting agent is also relatively low, and pollution to the environment is also relatively small.

The invention provides a method for preparing a titanium dioxide photocatalyst, which includes the following steps: preparing a thiomolybdic acid nanocluster solution; dispersing nanometer titanium dioxide and thiomolybdic acid nanocluster solutions in absolute ethanol, reacting at room temperature, and then Centrifuge, wash and dry to obtain the titanium dioxide photocatalyst; wherein, the preparation method of the thiomolybdic acid nanocluster solution includes the following steps: dissolve the sulfur source and the molybdenum source in deionized water, and perform the reaction at 50 to 110°C Finally, after multiple times of centrifugation and washing, the thiomolybdic acid nanocluster solution is obtained. The present invention can control the cluster size of molybdenum sulfate nanoclusters by controlling the ratio of sulfur source and molybdenum source, reaction temperature, reaction time, washing times and other conditions, thereby achieving control of cocatalyst activity.

The invention discloses a processing method of functional brown sugar rich in polyphenols. The processing method comprises following steps: sugarcane is juiced so as to obtain a raw material liquid, lime milk is added, and an obtained mixture is heated so as to obtain a heated raw material solution; a first-grade ceramic membrane is used for filtering so as to obtain a first grade membrane clear juice and a first grade membrane condensed juice; a second membrane is used for filtering so as to obtain a second membrane grade clear juice and a polyphenols-enriched second grade membrane condensed juice; and the polyphenols-enriched second grade membrane condensed juice is used for producing the functional brown sugar rich in polyphenols, wherein at least one or a plurality of ingredients selected from colla corii asini, red date, longan, Angelica sinensis, Radix Codonopsis, Chinese wolfberry, bulbus lilii, herba leonuri, and ginger are taken as functional ingredients, and are decocted with water so as to obtain a solution, or dried and smashed into powder, the polyphenols-enriched second grade membrane condensed juice is subjected to evaporation concentration and is mixed with the solution or the powder, and sugar boiling, graining, moulding, and packaging are carried out so as to obtain the functional brown sugar rich in polyphenols. According to the processing method, effective enrichment of polyphenols is realized, a plurality of functional ingredients which can be taken as both medicine and food are added, the content of polyphenols is 4 to 8 times higher than that of brown sugar obtained via traditional technology, and brown sugar quality and nutrient value are improved.

The invention relates to an extraction method of traditional Chinese medicine volatile components. The extraction method of traditional Chinese medicine volatile components comprises the following steps: taking traditional Chinese medicinal materials or traditional Chinese medicine preparations containing volatile components, and carrying out at least one time of water adding decocting to obtain awater decoction containing the volatile components; and carrying out reduced pressure evaporation on the water decoction containing the volatile components, and collecting an evaporated liquid. The extraction method can effectively avoid the situation that volatile components are damaged and are inconsistent with components in a decoction in a traditional extraction method, and is suitable for traditional Chinese medicinal material varieties which are difficult to distill, separate and collect the volatile components. Meanwhile, no extra impurity component is introduced, so that the product safety and effectiveness are guaranteed.

The invention relates to a spraying process of an on-line coating protection technology in a high-temperature heat treatment process. The spraying process comprises the following steps that A, a coating is added into a storage tank according to a liquid and powder; B, the powder is weighed, and the liquid is metered by a flow meter, the automatic proportioning and feeding are carried out by controlling of a system into a composite material preparation tank; C, after the composite material preparation tank is used for fully and uniformly compounding the powder and the liquid, and then the powder and the liquid are input into a spraying tank; D, the spraying tank is pressurized, and spraying preparation is automatically finished by the system; E, the oxide skin drifted away and partially pasted on the surface of a steel billet is removed and cleaned; F, after the spraying system receives a steel billet feeding signal, the coating is sent out by pressure from a nozzle, is forced to be atomized by compressed air at a nozzle port, and is uniformly sprayed on the surface of the steel billet in a sector shape; and G, air-blowing and water-washing are carried out to clean the nozzle, a machine is waited for the next steel billet. The spraying process has the effects that after metal is subjected to high-temperature heat treatment, the anti-oxidation effect is greatly improved, the yield is increased, the phosphorus removal effect is improved, the surface quality and the smoothness degree of a product are improved, the surface elements of the product are prevented from losing and enriching.

The invention discloses an active sampling system for water-air interface POPs (persistent organic pollutants) and a volatilization flux calculating method; a sampling device comprises a water-air gas collection module and a gas sample enrichment module; the water-air gas collection module comprises an organic glass barrel and a suspended balloon; the organic glass barrel is fixed in the suspended balloon, and the lower edge of the organic glass barrel overlaps with the lower edge of a suspending ring; the gas sample enrichment module comprises an SPE (solid phase extraction) column, a flow velocity meter, a vacuum pump, a first polytetrafluoroethylene pipe and a second polytetrafluoroethylene pipe; one end of the first polytetrafluoroethylene pipe is inserted into a rubber plug and into the SPE column, the other end of the first polytetrafluoroethylene pipe is connected to a gas sampling hole of the organic glass barrel; one end of the second polytetrafluoroethylene pipe is connected to one porous end of the SPE column through a silicone pipe, and the other end is connected to an inlet of the flow velocity meter; an outlet of the flow velocity meter is connected to the vacuum pump. The active sampling system is economical, efficient, portable and easy to operate, and has high sampling efficiency.

The invention discloses a method for testing the destructive effect and the performance impact of alkali metal and zinc vapor to coke. The method comprises the following steps: uniformly mixing excessive active carbon powder and alkali metal carbonate or zinc oxide, arranging the mixture in a corundum crucible internally provided with a step, arranging a porous corundum gasket on the step in the crucible, arranging a reacting coke sample on the gasket, covering a cover, keeping a container in a sealing state; arranging the container in a constant-temperature region of a muffle furnace, raising the temperature to 1300 DEG C at a certain rate, keeping the temperature for 90min to ensure that metal steam is completely absorbed by coke; after reacting, recording the mass of a coke sample with the particle size being more than 23mm, calculating the specific gravity of the pulverized coke; and testing a thermal state performance of a sample which is eroded by metal vapor. The method is capable of singly representing a direct destructive effect of the metal vapor to the coke, is beneficial to finding a relationship between the steam enrichment and the coke performance, and provides a quantization basis for reasonably controlling an alkali load and a zinc load which are charged in a blast furnace.

The invention discloses a super-large pressurized water reactor core long-cycle refueling loading method. The whole core adopts 221 groups of fuel assemblies, the height of the active section of the core is 14 feet, the thermal power is not less than 4588MWt, and 80 fuel assemblies are added each time. ~116 new fuel assemblies. The enrichment ratio of the new fuel assembly can be flexibly adjusted according to the specific requirements of the cycle length, and the adjustment range of not less than 55EFPD can be realized. By adding or removing the new fuel assembly, an additional motor cycle of about ±30EFPD can be realized. The number of gadolinium fuel rods carried by the new fuel assembly and the mass fraction of gadolinium can be determined according to the need to flatten the power distribution of the core. The axial partition of the new fuel assembly can be set according to the changing characteristics of the axial power distribution of the core. The method can meet the needs of nuclear power plants transitioning to 18-24 months long-cycle fuel management, can increase power generation, reduce power plant specific investment, suppress core axial power oscillation, and improve core axial safety characteristics.

The invention discloses a process for recovering uranium in water by photocatalytic reduction immobilization, electrooxidation enrichment and precipitation separation, which belongs to the technical field of precious metal recovery, and comprises the following three steps: photocatalytic reduction immobilization, electrooxidation enrichment and precipitation separation, and uranium extraction, enrichment, precipitation and recovery are realized by photocatalysis, electrooxidation and precipitation technologies. According to the method, uranium is extracted from the uranium-containing waste liquid through illumination, uranium is enriched through an electrooxidation method, uranium is separated and recycled through a precipitation method, and the methods are mild in condition, low in energy consumption and high in recovery rate, have simple and easily available equipment requirements and have good market prospects.

The invention discloses a traditional Chinese medicine spray for treating plaster allergy and a preparation method thereof. The spray is composed of the following raw materials by weight percentage: 50% to 70% of fresh hawthorn, 20% to 30% of green plum, and 10% to 20% of tangerine peel; the ingredients and dosage of auxiliary materials are as follows: glycerin 5%~10%, water-soluble azone 0.5%~1.5%. Its preparation method is as follows: take the processed fresh hawthorn, green plum and tangerine peel, soak them in 30% to 40% ethanol solution for several hours, separate the extraction solution and concentrate it under reduced pressure until it has no alcohol smell; the concentrated solution is injected into the macropore Resin column, eluted with water to remove impurities, collected 10% ethanol eluate, concentrated to a certain volume, added glycerin and water-soluble azone after filtration, and stirred evenly. Pharmacodynamic tests prove that the inventive medicine has significant anti-inflammation and anti-delayed hypersensitivity effects, and has a definite therapeutic effect on plaster allergy.