124 results about "Volatile solvents" patented technology

The invention relates to the technical field of waste gas separation, and discloses a low-energy-consumption recovery method and system for organic waste gas, and the method comprises the steps: analyzing the volatile solvent component concentration, concentration fluctuation data, solvent recovery energy consumption correlation factors and temperature and humidity data of the organic waste gas through multi-source coupling, and obtaining a characteristic coupling feature set; analyzing key process conditions of waste gas separation based on the feature set feed-forward situation to obtain optimal energy consumption operation parameters; the parameters and conditions of the waste gas separation process are optimized in combination with the parameters and feature set dynamic constraint, and a Pareto optimal scheme is obtained; selecting a scheme as an optimal control strategy according to separation efficiency dynamic characteristics and energy consumption stability key factors in the feature set; the digital twinning collaborative deduction control strategy and feature set is coded into a separation control instruction; based on recovery energy efficiency verification and product quality detection indexes after actual operation, performing feedback optimization to obtain a low-energy-consumption instruction generation strategy; the low-energy-consumption recovery efficiency of the organic waste gas can be improved.

The invention discloses a polyarylene ether nitrile nanofiber membrane and a preparation method of the polyarylene ether nitrile nanofiber membrane through double-solvent synergistic electrostatic spinning, and relates to the field of high polymer material preparation. The method comprises the following steps: preparing two electrostatic spinning solutions with obvious volatilization rate and dissolution parameter difference, and alternately depositing two types of fibers on a collecting surface by adopting dual-channel synergistic electrostatic spinning; in the deposition and drying process, chain segments at fiber cross points are induced to swell, mutually diffuse and cure in situ to form bonding points by utilizing the poor evaporation rate of a high / low volatile solvent and the poor solvent-polymer compatibility, so that the self-densification and the structure stabilization of the nanofiber membrane are realized. The obtained nanofiber membrane has high-density in-situ bonding points and remarkably improved mechanical properties, does not need additional post-treatment such as hot pressing or solvent spraying, and is suitable for application such as interlayer reinforcement and interface toughening of composite materials. The process has continuity and controllability, and the density and mechanical properties of the membrane body can be customized by adjusting a solvent system and spinning parameters.

The application provides a method for inkjet printing of oligonucleotides, and belongs to the technical field of in-situ synthesis of oligonucleotides.The method comprises the following steps: modifying the surface of a solid carrier with a chemically active functional group; depositing oligonucleotide synthesis reagents onto the surface of the modified solid carrier by inkjet to perform in-situ synthesis; and the solvent in the oligonucleotide synthesis reagents comprises one or two of glutaronitrile, acetonitrile and propylene carbonate.The application uses a new type of difficult-to-vaporize solvent, greatly reduces the volatilization of reagents during inkjet synthesis and the generation of organic vapors during synthesis, and thus maintains a high in-situ synthesis reaction efficiency of oligonucleotides.

The present invention relates to a compacted powder comprising at least: a) an oily phase in an amount of at least 10% by weight relative to the total weight of the composition, said oily phase comprising at least one non-volatile oil; and b) a powdered phase in an amount of at least 40% by weight relative to the total weight of the composition, said powdered phase comprising at least: i) perlite; and ii) at least one spherical filler selected from the group consisting of mineral fillers, organic fillers of natural origin, and mixtures thereof; and iii) at least one particulate colorant; and c) at least one amorphous hydrocarbon-based block copolymer; and d) at least one pigment; the composition is free of talc particles or mica particles in free form and is obtainable via a process comprising the steps of: 1) mixing the oil phase, the amorphous hydrocarbon-based block copolymer, the powdered phase and at least one volatile solvent to form a slurry; and 2) injecting the slurry into a container and shaping it by compaction, in particular pressing and / or suction.

The invention discloses a polyester polymer microsphere containing hyaluronic acid (sodium) and a preparation method of the polyester polymer microsphere, the hyaluronic acid (sodium) is dispersed in a microsphere body, and the hyaluronic acid (sodium) accounts for 2-20% of the weight of the polyester polymer microsphere. The preparation method of the microspheres comprises the following steps: dispersing hyaluronic acid (sodium) in a polyester polymer solution in a non-solution form to obtain a polyester polymer solution in which hyaluronic acid (sodium) is dispersed; the step of dispersing the hyaluronic acid (sodium) in the non-solution form is that the hyaluronic acid (sodium) is dispersed in the form of solid particles or a solid particle suspension; in the polyester polymer solution, the solvent for dissolving the polyester polymer is a volatile solvent. The microspheres provided by the invention can wrap hyaluronic acid (sodium) with higher content, and have better stability.

The utility model discloses a safe paint spraying and drying integrated device which comprises a processing box, a paint spraying device and a drying device. The processing assembly comprises a paint spraying unit and a heating unit, the paint spraying unit comprises a spray head, and the heating unit comprises an infrared lamp; the storage frame assembly comprises a translation frame, a translation unit, an overturning unit and a driving unit, and the overturning unit comprises two overturning shells and a bidirectional air pump; and the circulating filtering assembly is used for extracting gas in the processing box, filtering the gas and then returning the gas to the processing box. According to the safe paint spraying and drying integrated device, air in the processing box is continuously extracted for filtering through the circulating filtering assembly, moisture and harmful volatile solvents in the air are filtered out, then the air is returned to the processing box, cleanliness of the internal environment of the processing box is guaranteed, the processing quality and the processing efficiency are improved advantageously, accumulation of harmful substances is avoided, and the safe paint spraying and drying integrated device is suitable for popularization and application. And harmful substances are prevented from volatilizing to the outside after the box door is opened to cause environmental pollution and harm the health of workers, so that safe processing and production are realized.

The application discloses a kind of based on enhanced raman's trace furfural in oil ultrafast detection method and system, the method includes: preparation regular arrangement metal nanometer finger array on flexible polymer substrate;After depositing dielectric film on the surface of metal nanometer finger, introduce removable sacrificial layer, under the condition with temperature gradient, volatile solvent is applied, adjacent metal nanometer finger gradually approaches contact, metal-dielectric-metal gap structure is formed, so that the enhanced substrate of hotspot uniform distribution is obtained;Transformer oil sample is directly dropped on the surface of the enhanced substrate;Using Raman spectrum system, enhanced raman signal of furfural molecule in the oil sample is collected under laser excitation;According to the enhanced raman signal, the characteristic peak of furfural in transformer oil is identified.The application can realize in-situ, high-sensitivity, rapid, non-destructive detection of trace furfural in transformer oil without extraction and adsorption.

Provided is a substrate treating apparatus including a treating module, in which the treating module includes: a polishing treatment unit for polishing a substrate with a polishing pad; a cleaning treatment unit for cleaning the substrate by supplying a treatment liquid to the substrate; and a transfer chamber in which a transfer robot transferring the substrate is placed, a liquid treating chamber is provided in the cleaning treatment unit, the liquid treating chamber includes: a support unit for supporting and rotating the substrate; a treatment liquid supply nozzle for supplying a treatment liquid containing a polymer and a volatile solvent onto the substrate; a first removal liquid supply nozzle for supplying a first removal liquid onto the substrate; and a second removal liquid supply nozzle for supplying a second removal liquid onto the substrate.

This application relates to the field of solar cell technology, and more particularly to a perovskite solar cell and its fabrication method, as well as a photovoltaic module. The fabrication method of the perovskite solar cell includes: a first carrier transport layer disposed on a surface of a conductive substrate; forming a perovskite thin film by depositing a perovskite precursor solution on the surface of the first carrier transport layer; during the film formation process, a protective gas is introduced into the environment, the gas flow of which forms an acute angle with the surface of the first carrier transport layer. This protective gas protects the environmental atmosphere during the perovskite thin film fabrication process, accelerates the evaporation of volatile solvents, reduces organic solvent residue, and forms a continuous and uniformly thick large-area perovskite thin film, thereby improving the photoelectric conversion efficiency and stability of the perovskite solar cell device and promoting the industrialization of perovskite solar cells.

The application discloses a film-forming easy-to-remove low-irritation tooth whitening gel and a preparation method thereof. The film-forming easy-to-remove low-irritation tooth whitening gel comprises 1-30% of a film-forming agent, 1-15% of a plasticizer, 0.1-15% of a peroxide, 0.1-15% of a regulator and 40-95% of a volatile solvent in percentage by mass. The preparation method comprises the following steps: uniformly mixing raw materials including the film-forming agent, the plasticizer, the peroxide, the regulator and the volatile solvent to obtain the film-forming easy-to-remove low-irritation tooth whitening gel. The tooth whitening gel has better film-forming property, lower irritation, better safety in use, better whitening effect and better removal after use, and does not use a carboxyl group as an adhesion group by jointly matching the film-forming agent and the plasticizer.

The application relates to airtight powder container, comprising an outer cover, an inner cover, an inner sieve and a base, the inner sieve is airtightly installed at the opening end of the base and is located between the inner cover and the base, the inner cover and the inner sieve are hinged through a hinge unit, the hinge unit is elastic so that the inner cover can move towards the inner sieve side when being forced, when the outer cover is covered on the base, the outer cover extrudes the inner cover so that the inner cover is tightly combined with the inner sieve. In the application, the inner cover and the inner sieve are hinged with each other, the inner cover and the inner sieve can be tightly combined together under the extrusion force of the outer cover, the airtightness of the inner sieve is guaranteed, and the volatile solvent in the cosmetic material in the base is effectively prevented from being volatilized.

The invention provides an asphalt cold-patch liquid and a preparation method thereof, and the asphalt cold-patch liquid comprises the following components in parts by mass: 100 parts of asphalt, 10-30 parts of resin containing unsaturated C = C double bonds, 20-50 parts of a long-chain unsaturated fatty acid compound and 1-2 parts of a photoinitiator, wherein the long-chain unsaturated fatty acid compound is selected from unsaturated fatty acid of which the carbon chain length is not less than C16 or ester derivatives thereof. The asphalt cold supplementing liquid abandons a traditional volatile solvent, emission of VOCs is eradicated fundamentally, and the asphalt cold supplementing liquid has excellent environment-friendly safety; long-chain unsaturated fatty acid contained in the asphalt can form a lubricating molecular film on the surfaces of asphalt particles, so that excellent flowability and construction convenience at normal temperature are guaranteed; unsaturated double bonds in the material can be subjected to rapid photopolymerization reaction under natural illumination to form a cross-linked network structure, so that intelligent curing from flowing state to high strength is realized. Through the mechanism, rapid forming can be achieved at the room temperature, the maintenance time is greatly shortened, and the maintenance efficiency is remarkably improved.

The invention provides a preparation method of a DIC nano speckle used on the surface of a heterogeneous material, which comprises the following steps: (1) mixing and dispersing nano particles and a volatile solvent to obtain a nano particle dispersion liquid; (2) preparing a conductive layer on the surface of the cross section of the to-be-detected sample; (3) providing an electrified droplet deposition device which comprises a high-voltage power supply module, a nozzle and a sample table, and the high-voltage power supply module comprises a positive high-voltage power supply module and a negative high-voltage power supply module; placing a to-be-tested sample on a sample table; and (4) connecting the positive high-voltage power supply module with a nozzle, connecting the negative high-voltage power supply module with a sample table, spraying the nano-particle dispersion liquid onto the conductive layer of the sample to be detected, and drying to obtain the DIC nano speckle. The preparation method provided by the invention effectively solves the problem of non-uniform distribution of nano speckles caused by inconsistent adhesion force of nano particles to the surfaces of different materials in the prior art.

The invention relates to a light-triggered slow-release sterilization type perfume composition and a preparation method thereof, and belongs to the technical field of perfume. The light-triggered slow-release bactericidal perfume composition comprises the following components in percentage by mass: 0.1-0.3 wt% of fullerene subjected to surface modification, the fullerene is subjected to surface modification treatment through a surface modifier in advance, and the surface modifier is selected from at least one of polyvinylpyrrolidone and hydroxypropyl-beta-cyclodextrin; the toothpaste comprises the following components in percentage by weight: 2.5-3.5% of glycyrrhiza glabra extract, 10-15% of essence and 0.1-0.5% of a pH regulator, and is used for regulating the pH of a system to 5.5-6.5; the solvent comprises a main volatile solvent, a polar solvent and water. The invention further discloses a preparation method of the perfume. The fullerene and the glycyrrhiza glabra extract are applied to a perfume formula, so that the perfume is endowed with a sterilization function, and the requirements of modern consumers on multifunctional personal care products are met.

This invention discloses a devolatilization process for high melt flow index and high transparency lithium-based polymer solutions. The process employs falling film evaporation for initial evaporation, followed by deep devolatilization using a twin-screw extruder, with the volatile solvent being condensed and recovered. The devolatilized polymer melt is then extruded by a screw extruder, pelletized by an underwater pelletizer, and dehydrated by a centrifugal dewatering machine to obtain finished polymer granules. This method can be used for the devolatilization of high melt flow index, high transparency, and low water content lithium-based polymer solutions, and the resulting polymer volatile content is ≤0.5% (mass fraction). The granules or cobblestone-like particles are easy for downstream processing applications. This process is simple, low-cost, can be manufactured using existing mature equipment and processes, and is easy to control and industrialize.

The invention discloses porous polycaprolactone microspheres as well as a preparation method and application thereof. The preparation method of the porous polycaprolactone microspheres comprises the following steps: S1, respectively preparing a water phase solution and an oil phase solution; s2, mixing the water phase solution and the oil phase solution in the step S1 by using a micro-fluidic method, and collecting micro-droplets flowing out in a micro-fluidic manner; and S3, carrying out solvent volatilization treatment on the microfluidic effluent liquid obtained in the step S2 to obtain the porous polycaprolactone microspheres. The method comprises the following steps: controlling the number-average molecular weight of polycaprolactone in an oil-phase solution to be within a specific range, adding a pore-foaming agent and a compatibilizer into the oil-phase solution, and then mixing the oil-phase solution and a water-phase solution according to a certain flow velocity by adopting a microfluidic technology to prepare the porous polycaprolactone microspheres. The polycaprolactone microspheres not only have a smaller particle size distribution range and a higher pore-forming rate (up to 85% and above), but also have higher uniformity of porosity. In addition, the preparation method is easy and convenient to operate, parameters are controllable, and the method can be used for industrial large-scale production.

To provide a production method for efficiently obtaining a concentrated liquid in which a volatile component is concentrated.SOLUTION: The production method of the present invention includes an introduction step of introducing a gas phase containing a volatile component into a liquid phase composed of a hardly volatile or nonvolatile solvent. As a result, a concentrated liquid in which the volatile component is dissolved in the solvent is obtained. The production method of the present invention is carried out, for example, using a production apparatus including a container (11) for containing a liquid phase composed of a solvent (s), an air supply pipe (22) for guiding a gas phase containing a volatile component to the liquid phase, an exhaust pipe (32) for guiding the gas phase that has passed through the liquid phase to the outside of the container, and a pneumatic means (31) for circulating the gas phase from the air supply pipe to the exhaust pipe. When air bubbles are generated during the introduction step, a defoaming means (13) may be provided between the air supply pipe and the exhaust pipe.SELECTED DRAWING: Figure 1A

The application discloses a PBT car lamp electroplating primer with anti-color fading performance and a preparation method and application thereof. The components of the primer include 20-30 parts of a cyclic structure polyol modified difunctional polyurethane acrylate resin, 8-15 parts of a ten-functional polyurethane acrylate resin, 5-10 parts of a phenolic aldehyde epoxy acrylate resin, 2-6 parts of a difunctional polycarbonate polyurethane acrylate resin, 3-6 parts of pentaerythritol triacrylate, 5-10 parts of trimethylolpropane triacrylate, 2-3 parts of 184, 0.5-1 part of 819, 0.5-1 part of TPO, 0.1-0.2 part of an organic silicon leveling agent and 23-35 parts of an organic solvent. During preparation, the resin components are first mixed and dispersed at high speed to obtain a mixed resin, then 184, 819 and TPO and the leveling agent are dissolved in part of butyl acetate and stirred, ethyl acetate, ethylene glycol monobutyl ether and the remaining butyl acetate are added, and after dispersion, the primer is filtered to obtain the primer. The primer solves the problems of deep curing, adhesion and leveling of the PBT car lamp primer by accurately matching 184, 819 and TPO, selecting a cyclic structure modified polyurethane acrylate resin and gradient volatile solvents.

Systems and methods for recycling polymers. A method for recycling synthetic polymers by combining the polymers with a solid depolymerizing catalyst in a vessel, mechanically shearing the combined polymers and the solid depolymerizing catalyst against each other to produce monomers from the polymers; and collecting the monomers. The solid depolymerizing catalyst can be solid sodium hydroxide. Collecting the monomers can be achieved by contacting the sheared polymer and catalyst with a recyclable volatile solvent to dissolve the monomers. The method can include purifying the collected monomers for repolymerization. Purifying the monomers can be achieved using nanofiltration membrane technology, cyclic fixed bed adsorption, simulated moving-bed adsorption or a combination thereof.

The invention provides a preparation method of a waterborne polyurethane emulsion without a volatile solvent, and belongs to the technical field of material preparation. The preparation method comprises the following steps: taking polyether glycol, hexamethylene diisocyanate and 2, 2-dimethylolpropionic acid (DMPA) as raw materials, taking dibutyltin dilaurate as a catalyst, carrying out one-pot polymerization in a specific reaction medium triethyl citrate, and carrying out pH regulation and emulsification to obtain the stable waterborne polyurethane emulsion. The prepared emulsion can form a transparent polyurethane material with good mechanical properties after being dried, the boiling point of triethyl citrate exceeds 250 DEG C, and the transparent polyurethane material has good stability in daily life. According to the preparation method of the waterborne polyurethane, no volatile solvent exists in the whole process, the adopted functional components are safe in source, the treatment process is simple and convenient, and a thought can be provided for development of synthesis of a green solvent-free waterborne polyurethane solution so as to meet the requirement of green sustainable development.

The invention belongs to the technical field of safety of energetic materials, and particularly relates to a method for acquiring a gas signal in a vacuum closed cavity of an energetic material kneading process, which comprises the following steps: a sampling stage: opening a gas inlet valve, a gas pump and a gas exhaust valve, and extracting a gas sample from a top gas phase space of a vacuum kneading pot through the gas pump to enter a sampling pipeline; an analysis and exhaust stage: increasing the pressure in the sampling cavity of the gas detection device to an optimal working pressure range through the gas pump, analyzing the sample gas in the sampling pipeline by using the gas detection device, closing the gas inlet valve after the analysis is completed, and pushing the sample gas back into the vacuum kneading pot through the exhaust valve; in the reset stage, after exhausting is completed, the exhaust valve is closed. According to the method, real-time, accurate, reliable and safe monitoring on the concentration of the volatile solvent such as ethyl acetate can be realized under the high-vacuum closed extreme working condition, so that an indispensable technical guarantee is provided for refined and safe production of energetic materials.

The invention discloses a low-viscosity moisture-permeable anti-acid-etching permeation reinforcing agent as well as a preparation method and a use method thereof, and relates to the technical field of cultural relic protection. The anti-acid-etching permeation reinforcing agent comprises polyhedral oligomeric silsesquioxane (PMOs), a volatile organic solvent and a catalyst, effective permeation and rapid curing on the surface of the brick and stone cultural relics are realized by utilizing the'small molecule hydrophobic structure 'characteristic of the PMOs material and combining regulation and control of a low-viscosity volatile solvent, and the contradiction between'through hole permeation' and'hydrophobic acid corrosion resistance 'is successfully solved. The formed reinforcing layer not only remarkably improves the acid rain resistance, but also keeps good water vapor permeability, prevents the surfaces of the brick and stone cultural relics from being frozen and damaged, is good in compatibility with a silicate stone matrix, is not prone to aging, and is particularly suitable for emergency and long-acting protection of the fragile brick and stone cultural relics.

This adhesive composition includes: an adhesive solution which comprises a dilution solvent and an adhesive component including one or more components selected from a silane coupling agent, an organic titanate compound, an aluminate-based coupling agent, and a zirconate-based coupling agent; and a slow-volatile solvent which is added separately from the adhesive solution, can dissolve the adhesive components therein, and has a vapor pressure at 20°C of 2.33 kPa or less. The slow-volatile solvent includes one or more components selected from methyl isobutyl ketone, ethylene glycol, diacetone alcohol, and ethyl cellosolve.

The present invention relates to a composition that becomes porous upon drying and that in a form of slurry comprises at least one porous particle, a volatile polar or non-polar solvent that fills the pores of the porous particle before drying, a universal solvent that repels the solvent in the pores of the porous particle providing a solution in which the solvent-filled pores of the particles are dispersed by at least one surfactant. The invention further relates to the use of such a composition as a filler composition providing opacity and brightness. Furthermore, the invention relates to the use of composition according to the invention as a substitute for titanium dioxide without compromising the optical properties. The invention also relates to a method for preparing the composition according to the invention. The present invention also relates to a filter cake or filtrate composition comprising at least one porous particle, a polar or non-polar volatile solvent filling the pores of the particle, a surfactant and optionally a universal solvent, and a method for preparing the composition.

The invention discloses an ultra-fast detection method and system for trace furfural in oil based on enhanced Raman. The method comprises the following steps: preparing a regularly arranged metal nano finger array on a flexible polymer substrate; a removable sacrificial layer is introduced after a dielectric film is deposited on the surface of a metal nano finger, and a volatile solvent is applied under the condition of temperature gradient, so that adjacent metal nano fingers are gradually close to and in contact with each other to form a metal-dielectric-metal gap structure, and a reinforced substrate with uniformly distributed hot spots is obtained; directly dropwise adding a transformer oil sample on the surface of the enhanced substrate; adopting a Raman spectrum system to collect enhanced Raman signals of furfural molecules in the oil sample under laser excitation; and identifying the furfural characteristic peak in the transformer oil according to the enhanced Raman signal. According to the invention, in-situ, high-sensitivity, rapid and nondestructive detection of trace furfural in transformer oil can be directly realized without extraction and adsorption.

The present invention aims to provide a method for producing catalyst ink capable of creating fuel cell electrodes with improved power generation performance. [Solution] The present invention relates to a method for producing catalyst ink for fuel cells, comprising the steps of: preparing a catalyst dispersion by dispersing catalyst-supported carrier particles, which are carrier particles on which a catalyst is supported, in a solvent; preparing a gel by mixing an ionomer with a volatile solvent; and producing a catalyst ink by stirring and mixing the catalyst dispersion and the gel, wherein the stirring and mixing of the catalyst dispersion and the gel is performed by controlling the stirring speed and stirring time.

This invention provides an attractant for the bark beetle (S. spp.) and its application, relating to the field of green pest control in forestry. The attractant for the bark beetle in this invention is a hexyl acetate solution, prepared by mixing hexyl acetate with a volatile solvent at a volume ratio of 1:900-1100; the volatile solvent is a 70%-80% v / v ethanol solution. This invention uses hexyl acetate as the key component, combined with a volatile solvent in a specific ratio, to prepare the attractant, which exhibits good attraction effects on the bark beetle (S. spp.), is ecologically safe, and highly practical, effectively achieving green pest control in forestry. This attractant for the bark beetle (S. spp.) has excellent application prospects for population monitoring or large-scale killing of the bark beetle.

The present invention relates to a cosmetic composition comprising at least one silicone elastomer and at least one non-volatile oil, at least one silicone resin, at least one volatile solvent, and at least one polyorganosiloxane copolymer in a ratio of from about 1:0.2 to about 1:10. The compositions of the present invention can optionally contain a wax, a filler, and / or a pigment. The present invention also relates to a method of making up and enhancing the appearance of a keratinous substrate, particularly the lips, by applying the compositions of the present invention to the keratinous substrate.

The invention discloses an eyebrow pencil, and belongs to the field of cosmetics. The eyebrow pencil aims at solving the problem that an existing eyebrow pencil cannot give consideration to long-acting makeup keeping, smooth smearing and low irritation. The eyebrow pencil refill composition comprises a composite film forming system, a solvent and a solvent, wherein the composite film forming system is composed of polyesteride-5, trimethylsiloxy silicate and trimethyl pentaphenyl trisiloxane according to a specific weight ratio; the compound wax-based framework system is composed of ozokerite, oxidized polyethlene wax and Japanese wax; the specific skin feeling conditioning agent is a vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane cross-linked polymer; the plant-derived bioactive compound is prepared from herba centellae, herba portulacae and zanthoxylum piperitum fruit extracts; a colorant and a volatile solvent are also included. Through the synergistic effect of all the components, the eyebrow pencil has excellent water-proof, oil-proof, migration-resistant and makeup-keeping performance, excellent smearing smoothness, good mechanical strength and low irritation, is suitable for sensitive skin, is simple in preparation method and is suitable for industrial production.

The present application relates to a kind of grape seed extract preparation system, including shell and inside from top to bottom arrangement of tipping bucket assembly, transmission assembly and sorting assembly.Tipping bucket assembly uses the tipping bucket container of eccentric arrangement to cooperate elastic energy storage piece, it is realized based on the sudden jump of liquid weight threshold value and is overturned, and through the rigid collision of trigger lever and limit stopper inertia vibration is generated to shake off residual liquid film, solve the cross contamination caused by high adhesion of proanthocyanidin.Transmission assembly is stepped by driving arm impact to drive ratchet disc, and it is realized physical hard lock by unidirectional transmission structure and positioning pawl, solve the alignment deviation caused by signal drift of electric control system.Sorting assembly includes distribution disc with collection bottle installation slot and distribution pipe assembly.The present application realizes precision sorting, with zero cumulative error and nondestructive emptying etc.Advantages, suitable for the automatic preparation of natural products in high volatile solvent environment.