109 results about "Micropore filtration" patented technology

The invention belongs to the technical field of inorganic salt chemical industry. The invention provides a method for preparing anhydrous lithium chloride by using salt lake brine with low magnesium-lithium ratio, which comprises the following steps: pumping clear salt lake brine with low magnesium-lithium ratio into a plate-and-frame filter press for filtration, and sequentially performing microporous filtration and ultrafiltration on filtrate to obtain primary refined brine; filtering the primary refined brine through a nanofiltration membrane device to obtain secondary refined brine; allowing the secondary refined brine to pass through chelating resin to obtain magnesium-removed brine; mixing the magnesium-removed brine with an alkali solution, adjusting the pH value of the mixed solution, and pumping the mixed solution into a continuous extraction device for solvent extraction to obtain a lithium chloride solution; and evaporating and drying the lithium chloride solution in sequence to obtain an anhydrous lithium chloride product. The anhydrous lithium chloride product is prepared by adopting a nanofiltration membrane separation and solvent extraction combined process, the recovery rate of lithium ions is higher than 80%, the fresh water consumption of 1 ton of lithium chloride product is less than 50 cubic meters, the production cost is low, the chemical units are few, and the automation degree is high.

The invention discloses a wastewater treatment and recovery process in the production process of a layered oxide positive electrode material of a sodium-ion battery, and belongs to the field of environmental protection, the wastewater treatment and recovery process comprises the following steps: S1, respectively carrying out pH regulation on mother liquor and washing water, and respectively carrying out MF microporous filtration on the mother liquor and the washing water after pH regulation; s2, the filtered mother liquor and washing water are subjected to pH adjustment respectively, and the mother liquor and washing water subjected to pH adjustment are subjected to UF ultrafiltration respectively; s3, carrying out first-stage RO membrane treatment on the washing water UF produced water subjected to UF ultrafiltration; carrying out second-stage RO membrane treatment on mother liquor UF produced water and first-stage RO concentrated water after UF ultrafiltration; s4, carrying out resin defluorination on the concentrated water treated by the second-stage RO membrane; the produced water after the second-stage RO membrane treatment is returned to the first-stage RO membrane treatment in the step S3; and S5, treating the wastewater subjected to resin defluorination through a bipolar membrane, and recovering to obtain sodium hydroxide and sulfuric acid, so that the problem that sodium ions and sulfate ions cannot be recovered in the prior art is solved.

The application discloses a kind of intelligent switching water sample pretreatment system and method, system includes: combined sand filter sample barrel, for collecting water sample to be pretreated, initial water sample turbidity value acquisition is carried out, while water sample preliminary pre-filtering treatment is carried out;Positioning floating sampling device, for fixing to take supernatant after water sample settlement;Microfiltration module, for the microfiltration of ultrahigh turbidity water sample;Sample water transfer pump, for transmitting supernatant in combined sand filter sample barrel to microfiltration module;Sample collection barrel, for collecting and detecting water sample quantity after processing, for instrument or laboratory personnel to sample analysis;Valve assembly, by valve opening and closing, water sample is switched different pretreatment mode;Cleaning assembly, including rotary high-pressure spray head and self-heating ultrasonic cleaning device, for cleaning system after pretreatment internal residual adherend.

According to the system, a filter membrane group is arranged in a pretreatment chamber, an inlet of the filter membrane group is connected with an automatic sampling head, an inlet of a separation chamber is connected with an outlet of the pretreatment chamber, a filling port of the separation chamber is connected with an outlet of a sodium chloride solution chamber, and an electronic valve is arranged at the outlet; the inlet of the enrichment chamber is connected with the overflow port of the separation chamber, and a microporous filter membrane is arranged in the enrichment chamber; an overflow pipeline of the enrichment chamber extends into the detection chamber; the three-dimensional motion platform is arranged in the detection chamber, and the detection platform is mounted on the three-dimensional motion platform; and the Raman probe is arranged in the detection cavity and is respectively connected with the laser and the Raman spectrometer. The method comprises the following steps: collecting a water sample, carrying out multi-stage filtration in the pretreatment chamber, carrying out density flotation in the separation chamber, concentrating in the enrichment chamber, enriching in the detection platform, carrying out laser irradiation, and synchronously collecting Raman spectrum signals for analysis. The system and the method can realize qualitative analysis of the micro-plastics in the water environment.

The utility model discloses a high-temperature steam recycling device which comprises a direct heat exchange steam pipeline, an indirect heat exchange steam pipeline, a heat exchange condenser a and a cold medium pipeline, the direct heat exchange steam pipeline is communicated with a fine filter box, and a microporous membrane is arranged in the fine filter box. Steam output by the fine filter box is communicated with the mixing tank through an output pipeline and an indirect heat exchange steam pipeline, and the mixing tank is communicated with the heat exchange condenser a through a condensation pipeline. According to the high-temperature steam recycling device, alumina particles with the particle diameter larger than that of water vapor drop particles or aluminum hydroxide suspended solids which are not completely decomposed in steam are filtered and separated in a microporous filtering mode, the temperature of the alumina particles or the aluminum hydroxide suspended solids is increased in a compression mode, and the alumina particles or the aluminum hydroxide suspended solids are recycled through heat exchange and then enter the next condenser to be released, so that the temperature of the alumina particles or the aluminum hydroxide suspended solids is reduced; therefore, heat energy can be recycled, meanwhile, the recycling efficiency of condensate water can be improved, and waste of water resources and heat energy is avoided.

The utility model discloses a disinfection device for sewage treatment, which comprises a filter tank, the tops of the two sides of the inner cavity of the filter tank are fixedly connected with mounting seats, the bottoms of the surfaces of the mounting seats are provided with placing grooves, the tops of the inner cavities of the mounting seats are fixedly connected with screw caps, and the inner cavities of the screw caps are in threaded connection with locking bolts. The bottoms of the locking bolts are movably connected with bearings, the bottoms of the bearings are fixedly connected with sliding plates, and the bottoms of the sliding plates are fixedly connected with limiting insertion rods. By additionally arranging the nut and the bearing, the locking bolt can rotate in the inner cavity of the locking bolt, so that the sliding plate is driven to move, and the limiting insertion rod is driven to insert or release the microporous filter plate through the movement of the sliding plate, so that the microporous filter plate is convenient to disassemble and assemble, and a worker can conveniently maintain and clean the microporous filter plate; therefore, the filtering efficiency of the microporous filtering plate is improved, the dismounting and mounting efficiency of workers is also improved, and the time of the workers is saved.

The water tank comprises a first water tank body and a second water tank body, the first water tank body is located on the left side of the second water tank body, the water tank further comprises a filtering mechanism, the filtering mechanism is located at the bottom of the interior of the second water tank body, and the filtering mechanism comprises a micropore filtering net; the microporous filter screen is fixedly mounted at the bottom of the interior of the second water tank, and an activated carbon filter screen is fixedly mounted at the bottom of the microporous filter screen through a mounting frame. By arranging the extraction mechanism, the filtering mechanism, the recycling mechanism and the transmission mechanism, wastewater in the first water tank can be recycled, filtered and utilized, so that the effect of filtering and recycling is achieved, and the problem that a structure for filtering, recycling and continuously utilizing diluted water is not provided when the water tank is used for diluting at present is solved; and after the water is used for a certain time, the whole water needs to be replaced, so that certain waste is caused, and the use cost is increased.

The utility model relates to a full-automatic urine cell efficient enrichment system. Comprising a urine cell separation module, a sample module, a sample introduction module, a liquid storage module, a waste extraction module and a circuit control module, the urine cell separation module comprises an upper cover plate, a microporous filter membrane and a lower cover plate; the upper cover plate is provided with a sample phase inlet, a cross flow layer chamber and a liquid storage phase outlet. According to the utility model, not only is a circulating laminar flow filtering system adopted, but also circuit control is adopted, and laminar flow filtering can be continuously circulated according to a set program, so that the tumor cells in the urine can be fully automatically, efficiently and circularly enriched.

This invention provides an air supply and dust removal device for high-temperature corrosion prevention and control in coal-fired power plant boilers, comprising a cyclone separator and a microporous filter. The cyclone separator includes a separation shell, an air inlet, an exhaust outlet, and a first ash discharge outlet. The separation shell has a cylindrical separation chamber, and the air inlet, exhaust outlet, and first ash discharge outlet are respectively connected to the separation chamber. The air inlet is located at the upper part of the separation shell and is tangent to the outer wall of the separation shell. The exhaust outlet is located at the top of the separation shell, and the first ash discharge outlet is located at the bottom of the separation shell. The microporous filter includes a filter shell and a microporous filter element. The filter shell has an air inlet and an exhaust outlet, with the air inlet connected to the exhaust outlet. The microporous filter element is disposed inside the filter shell. The cyclone separator performs primary dust removal of large particles in the secondary air, and the microporous filter performs secondary dust removal of small particles in the secondary air, thereby achieving the removal of both large and small particles of dust in the secondary air.

The utility model relates to the technical field of sponge city sunken greenbelt drainage, and discloses a sunken greenbelt drainage structure for sponge city construction, which comprises a greenbelt main body, a sewer line and a drainage pipe, the bottom end of the drainage pipe penetrates through the sewer pipe and extends into the sewer pipe, overflow ports arranged at equal intervals are formed in the outer surface of the drainage pipe, a microporous filter plate is arranged in the drainage pipe, a conical frame is fixedly connected to the outer surface of the drainage pipe, and the conical frame is clamped into the green land body. Drainage ports arranged at equal intervals are fixedly formed in the outer surface of the drainage pipe; the sponge city sunken greenbelt drainage structure has the advantages that accumulated water in a gap between the overflow port and the greenbelt can be timely drained by the sponge city sunken greenbelt drainage structure, large-area death of short greenbelt plants due to water soaking is prevented, and diversification of sponge city sunken greenbelt vegetation and the drainage effect of the sponge city sunken greenbelt drainage structure are guaranteed.

The invention discloses a white granulated sugar juice filtering device and a filtering method thereof.The white granulated sugar juice filtering device comprises a filtering cartridge, a filtering assembly is connected to the interior of the filtering cartridge, a lifting assembly is connected to the exterior of the filtering cartridge, and a cleaning assembly is connected to the upper end of the filtering cartridge. The filter screen cylinder can preliminarily filter white granulated sugar particles contained in the white granulated sugar juice, and the microporous filter membrane has a fine pore structure and can further filter out large particles, microorganisms and impurities in the white granulated sugar juice, so that the filtering effect on the white granulated sugar juice can be improved, and the quality of the white granulated sugar juice is improved. The filtering device is used for solving the problem that white granulated sugar juice is difficult to filter more thoroughly due to the fact that only a common filter screen and a filter screen cylinder are adopted in a comparative patent. By arranging the lifting assembly, the servo motor drives the screw rod to rotate, so that the ball nut seat, the top plate, the filter screen cylinder and the microporous filter membrane are driven to lift, and the filter screen cylinder and the microporous filter membrane are conveniently taken out for thorough cleaning.

The application provides an integrated atomizer with a filter rod, electrodes, oil storage cotton and a filter rod are sequentially arranged in a smoke pipe, a through hole is arranged on the outer wall of a heating wire fixing smoke guide pipe, the heating wire is spirally wound on the cotton rod, the cotton rod passes through the through hole, the spiral heating wire is fixed in the through hole of the heating wire fixing smoke guide pipe, two pins of the heating wire are electrically connected with the positive electrode and the negative electrode of the electrode respectively, the oil storage cotton is of a hollow structure, the oil storage cotton is impregnated with tobacco tar, the heating wire fixing smoke guide pipe is hidden in the oil storage cotton, and the filter rod is connected to the rear end of the oil storage cotton, and the application has the beneficial effects that a filter rod is added at the suction nozzle, smoke passes through the filter rod for filtration, effectively solving the problems of oil absorption, oil explosion and condensate liquid inlet; a magnet is arranged at the atomizer interface to form a magnetic attraction structure, which is convenient to use; the filter rod is divided into two sections, taste particles are arranged between the two sections of microporous filter rods, the taste is enriched, the inventory cost is reduced, and the product line is enriched.

The invention relates to the technical field of slurry concentration, in particular to microporous filtration and concentration equipment and a method thereof.The microporous filtration and concentration equipment comprises a tank body, a filter assembly and a clear water discharging pipeline valve bank, the tank body is provided with a liquid inlet pipeline valve bank, a feeding pipeline valve bank and a gas inlet pipeline valve bank, and the filter assembly comprises multiple layers of first filter materials; the multiple layers of first filter materials are horizontally arranged in the tank body at intervals up and down, the clearing pipeline valve group comprises multiple groups of clearing valves, the multiple groups of clearing valves are respectively communicated with each layer of first filter material of the filter assembly, and a flow meter is arranged on a downstream confluence pipeline of the clearing pipeline valve group and is used for detecting the flow of clear liquid; the filter components in the tank body are horizontally arranged at intervals up and down, so that the longitudinal linkage relationship and the transverse linkage relationship among the filter materials are broken, and each filter material is independently controlled; the problems of low filtering efficiency and poor filtering effect caused by simultaneous stopping of filtering of the multi-layer filtering materials of the layer due to closing of the corresponding layer of filtering materials after the filtering materials are exposed out of the liquid level are solved.

The invention relates to a preparation method of rare earth metal gadolinium doped red carbon dots, and belongs to the technical field of nano material synthesis and biomedical imaging. Aiming at the problems of low gadolinium ion doping efficiency, more impurity residues and single function in the existing carbon dot preparation, the method comprises the following steps: dissolving p-phenylenediamine and dicyandiamide in a specific molar ratio, adding a GdCl solution, and carrying out ultrasonic dispersion to form a uniform system; performing hydrothermal reaction by adopting a staged temperature control program to optimize the crystallinity of the carbon matrix; high-efficiency removal of impurities is realized through high-speed centrifugation, microporous filtration and molecular weight interception dialysis; and finally, performing low-temperature vacuum drying to obtain a powder product. The obtained gadolinium-doped red carbon dots have the characteristics of uniform particle size, abundant surface hydrophilic functional groups, stable red fluorescence emission and synergistic enhancement of magnetic responsiveness, and can be used for constructing a bimodal fluorescence-magnetic resonance imaging and diagnosis and treatment integrated platform in a living body.

The utility model discloses an improved culture bottle special for mycoplasma culture, and relates to the technical field of bioengineering. The bottle comprises a bottle body and a bottle cap, the inner side and the outer side of the periphery of a bottle opening in the upper side of the bottle body are respectively provided with a threaded structure, and the bottle body is transparent or semitransparent; the bottle cap is mounted on the bottle body through the bottle body outer side threads; a gas-permeable membrane assembly is arranged on the bottle cap, and the gas-permeable membrane assembly is composed of at least one layer of microporous filtering membrane and a supporting frame; an anti-adsorption coating is arranged on the inner wall surface of the bottle body; a solid culture medium is arranged in the bottom of the bottle body, the upper surface of the solid culture medium inclines to the bottle bottom, and a liquid culture medium is filled between the solid culture medium slope and the side wall of the bottle body; the anti-splashing device is installed in the bottle body through threads on the inner side of the bottle opening and is in an inverted circular truncated cone shape, and the interior of the anti-splashing device is hollow. By improving the material of the bottle body, optimizing the inner wall coating and arranging the breathable membrane assembly, the safety, reliability and visualization degree of the mycoplasma culture process are improved, and meanwhile, the risk of cross contamination is effectively reduced.

The utility model relates to the technical field of numerical control lathes, and discloses a cutting fluid spraying structure for a numerical control lathe, which comprises a numerical control lathe main body, a micropore filter screen is clamped in the middle of the top surface of the numerical control lathe main body, and a cutting fluid tank is fixedly arranged on the bottom surface of the numerical control lathe main body. Cooling fans are fixedly arranged on the periphery of the surface of the cutting fluid box. A conveying mechanism is fixedly arranged on one side of the outer surface of the cutting fluid box, a tool rest is arranged on one side of the top face of the numerical control lathe body, and an adjusting mechanism is fixedly installed on the outer surface of the tool rest. According to the cutting fluid spraying structure for the numerical control lathe, through the arrangement of the microporous filter screen and the cooling fan, after being used, cutting fluid falls into the cutting fluid box from the microporous filter screen, impurities in the cutting fluid are filtered through the microporous filter screen, the cooling fan is turned on, the used high-temperature cutting fluid is cooled, the cutting fluid is conveyed in a circulating mode through the conveying mechanism, and the cutting fluid is sprayed to the cutting fluid box. The cutting fluid can be reused, and the machining cost is saved.

The invention relates to the technical field of environmental governance, in particular to a composite biological enzyme deodorant and a preparation method thereof.The preparation method comprises the following steps that S1, microbial flora with a deodorization function is selected for pretreatment, and composite biological enzyme liquid is obtained; s2, adding saccharides, glycerol and EDTA-2Na (Ethylene Diamine Tetraacetic Acid-2Na) into the composite biological enzyme liquid obtained in the S1 to form a mixed liquid; s3, soaking the humic acid particles in purified water, performing ultrasonic extraction, and performing microporous filtration to obtain activated humic acid liquid; s4, adding the activated humic acid liquid obtained in the step S3 into the mixed liquid obtained in the step S2, and stirring and mixing; s5, adding the residual citrate buffer solution to obtain a semi-finished product mixed solution A; s6, complementing purified water, and uniformly stirring and mixing to obtain a finished product of the composite biological enzyme deodorant. According to the invention, through the synergistic effect of the composite bio-enzyme and humic acid and the stable support of a multi-component protection system, the comprehensive effects of efficient deodorization, component stability and environmental adaptability are realized, and no secondary pollution is caused.

The embodiment of the utility model provides an integrated seawater seaweed filtering and collecting device, and relates to the technical field of seaweed filtering and collecting. The integrated seawater seaweed filtering and collecting device comprises a sleeve, a positioning rod is movably arranged in the sleeve, a coarse filtering piece, a seaweed removing piece and a micropore filtering piece are installed on the positioning rod from top to bottom, a water inlet pipe is connected to the upper end of the sleeve, and a vacuum pump is connected to an air outlet pipe arranged at the lower end of the sleeve. A beaker is arranged at the lower end of the water outlet in the bottom of the sleeve. According to the utility model, the rough filtration part, the algae removal part and the microporous filtration part are sequentially mounted on the positioning rod, so that seawater and algae are integrally filtered, the functions of seawater filtration and algae collection are integrated, the occupied space of equipment is reduced, seawater filtration and algae collection can be realized through simple operation, the working efficiency is improved, and the cost is reduced. Meanwhile, a multi-stage filtering and algae removing module is adopted, so that the cleanliness of the filtered seawater and the purity of collected algae are ensured.

The utility model relates to the technical field of industrial product design, in particular to a model industrial product polishing device for industrial product design. The device comprises a grinding table, a penetrating groove is formed in the middle of the top surface of the grinding table, a microporous filter screen is clamped in the penetrating groove, a water tank is fixedly mounted on the bottom surface of the grinding table, and a cooling and scrap removing mechanism is fixedly mounted on one side of the outer surface of the water tank; fixing frames are fixedly arranged on the two sides of the top face of the grinding table. According to the model industrial product grinding device for industrial product design, through the arrangement of the cooling and scrap removing mechanism, a water source is injected into a water tank, when an industrial product is ground, a circulating water pump is started, the water source in the water tank is pumped out and conveyed into a water spraying pipe through a conveying pipe, and then the water is sprayed to the industrial product; chippings generated by industrial product polishing are adsorbed and cooled, a used water source flows back into the water tank after being filtered by the microporous filter screen, the water source can be repeatedly used, and the cost is saved.

The invention discloses a lyocell fiber solvent filtering and separating device which comprises a microporous filtering tank, an activated carbon filter, a waste liquid container, a water storage container, an electric appliance control box and a solvent storage tank, a head sealing tank cover is arranged at the upper end of the microporous filtering tank in advance, and a bottom sealing funnel is fixedly installed at the bottom of the microporous filtering tank; a filter element assembly bearing plate is fixedly mounted at the lower end of the interior of the microporous filtering tank, a microporous filter element is movably mounted at the upper end of the filter element assembly bearing plate, a liquid inlet pump is fixedly mounted on one side of an activated carbon filter, and a liquid feeding guide pipe is fixedly mounted on the other side of the activated carbon filter; and the activated carbon filter is communicated with the interior of the bottom-sealed funnel through a liquid feeding guide pipe. The whole structure is optimized and improved, and multiple devices are integrated and associated through pipelines, so that the whole working steps and links are simplified, and the whole normal use work is more efficient and stable.

The utility model relates to the technical field of veterinary injection production, in particular to a redundant fine-filtration filtering device which comprises a filtering box, a filtering cylinder, a vertical rod, a hydrophobic filtering membrane, a hydrophilic microporous filtering membrane, an infusion tube and a stabilizing assembly, and the stabilizing assembly comprises a placing frame, a supporting plate, a right-angle plate, an electric telescopic rod, a moving plate, a frosted plate and a connecting plate. When the storage rack is used, the storage rack is placed above a supporting plate, then an electric telescopic rod below a right-angle plate is started, a moving plate abuts against a frosted plate to make contact with the upper wall of the storage rack, the frosted plate can improve the friction force between the moving plate and the storage rack, a connecting plate can share the pressure borne by the supporting plate, and the situation that the supporting plate is broken is avoided; in this way, a worker can conveniently and rapidly take down the hydrophobic filtering membrane and the hydrophilic microporous filtering membrane on the vertical rods for cleaning, redundant accumulation in the injection is effectively avoided, and the injection filtering efficiency and quality are improved.

The utility model provides a catalyst filtering kettle for production of cyclohexane carboxylic acid, the catalyst filtering kettle for production of cyclohexane carboxylic acid comprises a kettle body, a plurality of microporous filtering rods, a shunt pipe, a discharge assembly and a plugging assembly, the kettle body is provided with a feed port and a discharge port; the microporous filter rods are arranged in the kettle body and connected with the bottom of the kettle body, and the bottoms of the microporous filter rods are opened and communicated with the outside of the kettle body; the shunting pipe is communicated with the feeding hole of the kettle body and is communicated with the plurality of microporous filter rods; the discharging assembly comprises a plurality of screw rods and a driving assembly, the plurality of screw rods are in one-to-one correspondence with the plurality of microporous filter rods, the screw rods penetrate through the microporous filter rods, and the lower ends of the screw rods extend out of the kettle body; the power output end of the driving assembly is connected with the multiple screw rods and used for driving the screw rods to rotate. And the plugging assembly is used for plugging or opening the bottom opening of the microporous filter rod. According to the catalyst filtering kettle for producing the cyclohexane carboxylic acid, the microporous filtering rod does not need to be detached, and the operation is simple.

The utility model discloses a sulfolane solution purification device which comprises an anion exchange resin tower body, the liquid inlet end of the anion exchange resin tower body is connected with a pressurization type micropore filtering structure, the liquid inlet end of the pressurization type micropore filtering structure is connected with a sedimentation filtering bin, the top of the sedimentation filtering bin is connected with a liquid injection pipe, and the liquid injection pipe is connected with a liquid outlet of the anion exchange resin tower body. The utility model relates to the technical field of sulfolane solution purification, which is characterized in that a pre-filtering structure of an anion exchange resin tower body in the existing sulfolane purification device is improved, and large-particle impurities and macromolecular groups in an inferior sulfolane solution are filtered and adsorbed by utilizing a sedimentation filtering bin; the resin tower body is provided with the porous ceramic filter pore plate, and the mechanical pressurizing assembly is matched to pressurize the sulfolane solution, so that the sulfolane solution passes through the porous ceramic filter pore plate, small-particle impurities in the solution are filtered out, the particle impurities entering the resin tower body are effectively reduced, and the resin exchange purification operation efficiency is guaranteed.

A gas-liquid separation device for producing hydrogen by electrolysis of water, relates to the field of gas-liquid separation technology, comprises a separator housing, the separator housing is a square shell with upper and lower openings, the upper end of the separator housing is fixedly connected with an arc-shaped upper end cover, the lower end of the separator is fixedly connected with an arc-shaped lower end cover, and the separator housing is provided with a gravity sedimentation component, a centrifugal separation component, a baffle separation component and a microporous filtration component from bottom to top. The present invention solves the problems that the gas-liquid separator in the traditional technology is limited in function when used for producing hydrogen by electrolysis of water, cannot achieve diversified separation effects, and the separated droplets are not transferred in time and return to the gas phase, resulting in a reduced gas-liquid separation rate.

The utility model relates to the technical field of slurry concentration, in particular to microporous filtration concentration equipment, which comprises a tank body, a filter component and a clear water outlet pipeline valve group, a liquid inlet pipeline valve group, a feeding pipeline valve group and a gas inlet pipeline valve group are arranged on the tank body, and the filter component comprises a plurality of layers of first filter materials. The multiple layers of first filter materials are horizontally arranged in the tank body at intervals up and down, the clearing pipeline valve group comprises multiple groups of clearing valves, the multiple groups of clearing valves are respectively communicated with each layer of first filter material of the filter assembly, and a flow meter is arranged on a downstream confluence pipeline of the clearing pipeline valve group and is used for detecting the flow of clear liquid; the filter assemblies in the tank body are horizontally arranged at intervals up and down, so that the longitudinal linkage relationship and the transverse linkage relationship among the filter materials are broken through by adopting the horizontal arrangement, and each filter material is independently controlled; the problems of low filtering efficiency and poor filtering caused by simultaneous stopping of filtering of the multi-layer filtering materials of the layer due to closing of the corresponding layer of filtering materials after the filtering materials are exposed out of the liquid level are solved.

The invention discloses a high-efficiency low-consumption yellow phosphorus production device which comprises an electric furnace main body, a variable cross-section gas guide system, a rotational flow condensing tower group, a tail gas heat energy recovery unit and an intelligent sedimentation system, the variable-cross-section gas-guide tube is formed by combining an inclined taper tube and a gradually-expanding vertical tube, a spiral guide plate and a honeycomb dust removal module are arranged in the variable-cross-section gas-guide tube, and an atomizing phosphorus collecting mechanism is arranged on a descending section; the rotational flow condensing tower group improves the gas-liquid contact efficiency through a concentric double-cone flow guide structure and a high-speed atomizer; sensible heat is recovered by a tail gas total water seal integrated heat-conducting oil interlayer, and gradient utilization of tail gas heat energy is realized by combining a CO catalytic combustion chamber; the wastewater settling tank is provided with a three-stage gradient filtering system and is controlled through linkage of magnetic microporous filtering and spiral sludge discharging; according to the device, the dust removal rate is increased by 40%, the phosphorus yield reaches 92% or above, the comprehensive energy consumption is reduced by 18%, the problems that a traditional device is low in dust removal efficiency, high in energy consumption and insufficient in resource utilization rate are solved, and the device is suitable for large-scale industrial yellow phosphorus preparation.

The application discloses a method for counting a small amount of brine shrimps by using a diaphragm vacuum pump and a microporous filter film, and comprises the following steps: placing the microporous filter film above a filter head of the diaphragm vacuum pump, pouring hatching liquid into a filter cup of the diaphragm vacuum pump for filtration, and filtering the hatched brine shrimps on the microporous filter film by using the diaphragm vacuum pump, so that the hatched brine shrimp larvae and empty shells can be clearly distinguished on the microporous filter film, and the brine shrimps can be accurately counted under naked eyes or a dissecting microscope. The method greatly reduces the loss of the number of brine shrimps in the process of hatching the brine shrimps in a laboratory, reduces experimental data errors, more accurately completes counting, greatly improves the counting accuracy, and obtains more accurate hatching rates of brine shrimp eggs. The method is simple in steps and easy to operate, provides a better method for accurately calculating the hatching rate of the brine shrimps, and lays an important foundation for experiments related to the brine shrimps.

The invention belongs to the technical field of plant exosomes, and particularly discloses a phellinus igniarius exosome as well as a preparation method and application thereof. The preparation method of the phellinus igniarius exosome comprises the following steps: (1) activating a strain; (2) seed culture; (3) fermentation culture: transferring the phellinus igniarius seed solution into a fermentation culture medium for culture to obtain phellinus igniarius fermentation liquor; and (4) extraction: carrying out coarse filtration, primary centrifugation, primary microporous filtration, secondary microporous filtration, secondary centrifugation, resuspension and tertiary centrifugation on the phellinus igniarius fermentation liquor, and collecting to obtain the phellinus igniarius exosome. According to the preparation method of the phellinus igniarius exosome, a specific fermentation method and a specific extraction method are combined, an efficient and easy-to-operate way for obtaining the bacterial-derived exosome is provided, the yield, purity and efficacy of the obtained exosome can be ensured to be stable, and the phellinus igniarius exosome is suitable for large-scale production.

The utility model relates to filter machine technical field, and disclose a kind of doublet micropore filter, including two filter drums, still including cover, slag scraping structure and surround cylinder, the cover is detachably arranged at the top end of filter drum, and retractable structure is equipped between the cover and filter drum, the slag scraping structure includes rotating part and slag scraping piece, the rotating part is used to drive slag scraping piece rotation, to scrape the inner wall of filter core in filter drum, the surround cylinder is arranged in filter drum, and the outer circumference and bottom end of surround cylinder are equipped with leakage hole;The utility model can drive connecting shaft rotation using motor when filtering, in other words, can drive arc-shaped scraper to scrape the impurities attached to filter core inner wall, through this timely and automatic scraping cleaning action, filter core can keep relatively clean state at any time, greatly improve the filter effect of filter core continuity, ensure that the precision and flux of filtration work are not affected by the negative influence of impurity accumulation.

The utility model belongs to the field of biological medicine, and relates to a traditional Chinese medicine exosome extraction device, which comprises: a container with a hollow interior and a top provided with an opening for placing raw materials; the microporous filtering membrane is arranged in the container; the stirrer is arranged in the container and is positioned above the microporous filtering membrane; the at least two centrifugal chambers are arranged in the container and located below the microporous filtering membrane, and the centrifugal chambers are arranged from small to large according to the diameters from top to bottom; the centrifugal chambers are annular and are arranged around the same rotating shaft; at least two storage chambers; a waste liquid collection chamber; and pumping devices are arranged in the pumping pipelines, and the pumping pipelines are connected with the centrifugal chambers and the storage chamber, the adjacent centrifugal chambers or the centrifugal chambers and the waste liquid collecting chamber. By arranging the stirrer, the microporous filter membrane, the multi-stage centrifugal chamber and the multi-stage pumping pipeline, the purpose of step-by-step separation is achieved, the extraction speed of the traditional Chinese medicine exosome can be increased, wall breaking and centrifugation are integrated, time is saved, efficiency is improved, and large-scale preparation is achieved.