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84results about How to "Easy to separate and collect" patented technology
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Internal recycle multi-dimensional electro-catalytic wastewater treating equipment
InactiveCN101863533AEasy to handleReduce energy consumptionWater/sewage treatment by electrochemical methodsWater/sewage treatment by sorptionElectricityCatalytic oxidation
The invention discloses internal recycle multi-dimensional electro-catalytic wastewater treating equipment, which is characterized in that the wastewater treating equipment is provided with a cylindrical device which is internally provided with an inflow water distribution pipe, an aerator pipe, an electrode reaction region, a rectifying region, a water outlet region and a scum collecting region from bottom to top. The wastewater treating equipment of the invention integrates the electro-catalytic oxidation and air floating functions into a whole with good treating effect, low energy consumption and long electrode life.
Owner:HEFEI UNIV OF TECH
Graphene heat-conducting film as well as preparation method and production equipment thereof
ActiveCN109467078AEasy to separate and collectFunctional group reductionGrapheneHeat conductingSlurry
The invention provides a graphene heat-conducting film as well as a preparation method and production equipment thereof. The preparation method comprises the following steps: with graphene oxide as aprecursor, coating a tape with graphene oxide slurry, drying, and collecting the dried graphene oxide; grinding the dried graphene oxide, and pressing into a film; performing heat treatment on the pressed film so as to form a graphene film; and pressing again, thereby obtaining the graphene heat-conducting film disclosed by the invention.
Owner:CHANGZHOU FUXI TECH CO LTD
Solid waste reutilization device
InactiveCN109289972AIncrease the degree of fragmentationEasy to handleMagnetic separationGrain treatmentsResource utilizationComminution
The invention discloses a solid waste reutilization device which comprises a crushing box. A crushing mechanism is arranged in the crushing box and comprises a smashing cavity and a comminution cavity. A transmission mechanism is arranged on the right side of the smashing cavity and comprises a hydraulic mechanism located in the smashing cavity to drive the crushing mechanism located in the smashing cavity to move left and right. The transmission mechanism further comprises a transmission cavity, and two ratchet mechanisms moving through the hydraulic mechanism are arranged in the transmissioncavity. According to the solid waste reutilization device, during work, the device can separate and collect crushed products well, and therefore it is guaranteed that resources are utilized more efficiently and reasonably, solid waste is smashed and separated more thoroughly, and reutilization of operators to the solid waste is more convenient, and the resource utilization rate is increased; andthrough machine transmission, utilization of the device to a power source is more reasonable and efficient, and energy utilization is improved.
Owner:台州市路桥跃盛环保科技有限公司
Method for preparing titanium polyacetylacetonate precursor sol spinning solution, titanium oxide continuous fiber and titanium oxide nanofiber
ActiveCN108914250AAvoid introducingImprove spinnabilityElectro-spinningFibre chemical featuresFiberSolvent
The invention relates to a method for preparing a titanium polyacetylacetonate precursor sol spinning solution, a titanium oxide continuous fiber and a titanium oxide nanofiber. According to the method, tetrabutyl titanate is used as a titanium source for synthesis of a titanium polyacetylacetonate precursor, and the precursor, an auxiliary agent and a solvent are mixed uniformly to obtain the solspinning solution; the sol spinning solution is subjected to electrospinning and dry spinning so as to obtain a precursor nanofiber and a continuous fiber respectively; and then heat treatment is carried out so as to obtain the titanium oxide nanofiber and the titanium oxide continuous fiber. The prepared titanium oxide nanofiber has a diameter of 400 to 1200 nm and a length of 2 to 6 cm; and theprepared titanium oxide continuous fiber has a diameter of 20 to 100 [mu]m, a length of more than meters and a strength of 100 MPa to 1.0 GPa. The method of the invention has the advantages of simpleprocess, low cost and capacity of avoiding the existence of impurity ions; the prepared precursor sol has good spinnability and is stable and not prone to gelation; and the prepared fibers have highstrength and good catalytic performance.
Owner:SHANDONG UNIV
Method for producing light biological diesel oil with seed oil of camphor
InactiveCN101402873AEasy to separate and collectReduce energy consumptionBiofuelsLiquid hydrocarbon mixture productionIonGrain shape
The invention relates to a method for preparing light biodiesel from camphor tree seed oil, which includes the pretreatments of impurity removing and degumming. The invention is characterized in that: the pretreated product is added with carbinol under the effect of the molar ratio of 0.5 to 0.7 between the esterification catalyst sulfate propyl sulfonic paramethyl imidazole acidated ion liquid and dissociated fatty acid according to a molar ratio of 5-7 between the carbinol and the dissociated fatty acid for reaction for 90 to 120min at the temperature of 64 to 70 DEG C and then separated through centrifuging; the esterification catalyst and the carbinol return an esterification reaction vessel; the product of esterification and the carbinol enter an ester exchange reaction vessel; under the effect of the molar ratio of 0.15 to 0.2 between the ester exchange catalyst grain-shaped loading type KOH / MgO / Al2O3 and total fatty acid, the carbinol is added according to a molar ratio of 6 to 8 between the carbinol and the total fatty acid for reaction for 180 to 210min at the temperature of 64 to 70 DEG C, then filtered and separated through centrifuging; a glycerin phase recycles the carbinol through film distilling and obtains the glycerin; a formic ester phase recycles the carbinol through film distilling and is decolored for obtaining the light biodiesel which not only can be mixed with light diesel oil or vehicle diesel oil for being used as a diesel oil engine fuel, but also can be directly used as the diesel oil engine fuel.
Owner:NANCHANG UNIV
Preparation method and preparation system of medroxyprogesterone acetate
The invention relates to the field of preparation of medicines and in particular relates to a preparation method of medroxyprogesterone acetate. The preparation method comprises the steps of methenyl acetate preparation, hydrogenation reaction, de-coloring and refining and the like; the invention further provides a preparation system of the medroxyprogesterone acetate; the preparation system comprises a methenyl acetate preparation mechanism, a hydrogenation reaction mechanism and a de-coloring and refining mechanism, which are connected in sequence; the invention aims at providing the preparation method and the preparation system of the medroxyprogesterone acetate; a monoester is used as a raw material and reacts to prepare methenyl acetate; then the hydrogenation reaction and de-coloring and refining reaction are carried out to prepare the medroxyprogesterone acetate; the monoester is simple and easy to obtain, so that the cost of the raw material can be reduced; a preparation process is stable and the obtained medroxyprogesterone acetate has high purity; the preparation method can be adaptive to large-scale production.
Owner:YUEYANG HUANYU PHARMA
Electromagnetic dust collector
InactiveCN111468294AEasy to separateEasy to separate and collectExternal electric electrostatic seperatorElectric supply techniquesElectric machineParticle packing
The invention discloses an electromagnetic dust collector which comprises a treatment box and an electrostatic generator; an air inlet is formed in the side wall of the treatment box in a penetratingmanner; a discharge sheet is fixed on the inner wall of the air inlet; an air inlet pipe and an air outlet pipe are fixed on the two symmetrical side walls of the treatment box in a penetrating mode correspondingly; two electromagnets are symmetrically fixed on the inner wall of the upper end and the inner wall of the lower end of the treatment box; deflection grooves are formed in the inner wallsof the two sides of the treatment box in a penetrating mode correspondingly; a collecting box is fixed on the exterior of the treatment box, and a collecting and separating mechanism is arranged in the collecting box. The electromagnetic dust collector has the advantages that along with the rotation of a motor in the control box, a positive electricity partition plate and a negative electricity partition plate alternately move; and impurity particles in the air flow also deflect towards the two sides alternately, so that when the particles deflect towards one side, the particles collected atthe other side can stably fall to the inner bottom of the collecting box without being influenced by wind pressure, and the collecting process of the particles is not influenced by particle accumulation.
Owner:卢兰
Natural attractant for aggregating insects
InactiveCN104798817AIncrease productivityBreak through the technical bottleneck of farmingBiocidePest attractantsBiotechnologySodium bicarbonate
The invention discloses a natural attractant for aggregating insects. The natural attractant is prepared by mixing the following components, 15-30% of animal blood powder, 1-2% of ammonia water, 3-4% of sodium bicarbonate, 1-3% of brown sugar, 0.5-2% of yellow rice wine, 0.5-2% of yeast, and the balance of auxiliary materials. The invention also discloses a use method of the natural attractant for aggregating insects. A technological principle adopted by the natural attractant for aggregating insects is characterized in that the sitotaxis of insects to fermented protein foods is used to realize aggregation of living insects in order to realize convenient collection and separation, so the separating production efficiency of cultured housefly larvae and black soldier flies is greatly improved, and the technical bottleneck of culture of the housefly larvae and black soldier flies is broken through. The natural attractant has the advantages of simple adopted materials, low cost, substantial induction and aggregation effect on insects, effective improvement of the insect separating production efficiency in the insect culture process, production cost reduction, and wide use in agricultural production.
Owner:刘胜利 +1
Pt1@MIL nano-catalyst, and preparation method and application thereof
ActiveCN108704670AEasy to separateEasy to collectOrganic compound preparationOrganic-compounds/hydrides/coordination-complexes catalystsNano catalystPlatinum
The invention discloses a Pt1@MIL nano-catalyst. The Pt1@MIL nano-catalyst comprises a substrate, a metal organic frame MIL-101 serves as the substrate. Mutually-independent platinum atoms Pt are loaded onto the metal organic frame MIL-101 evenly, the mass ratio of the platinum atoms Pt to the metal organic frame MIL-101 is (0.18-0.25): (95-105), the nano-catalyst with a heterogeneous structure iseasily separated and collected from a reaction system to be recycled. The invention further discloses a preparation method of the Pt1@MIL nano-catalyst and application of the Pt1@MIL nano-catalyst incarbon dioxide hydrogenation reactions. The preparation method has the advantages of mild condition, simple procedure, low cost and environment protection. In the carbon dioxide hydrogenation reactions, the Pt1@MIL nano-catalyst has high catalytic activity, high methyl alcohol selectivity, high catalytic stability, special H2 dissociation paths and high stability, thereby being applicable to commercialization.
Owner:INST OF ADVANCED TECH UNIV OF SCI & TECH OF CHINA
Novel preparation method of insensitive explosive TATB
ActiveCN111995527AImprove solubilityThe synthesis process is matureOrganic compound preparationCarboxylic acid amides preparationChemical industryAcetic anhydride
The invention provides a novel preparation method of an insensitive explosive TATB. The method comprises the following steps: 1, with 2,4,6-trinitrotoluene as a raw material, subjecting 2,4,6-trinitrotoluene to reacting with hydrogen and acetic anhydride in sequence to obtain 2,4,6-triacetylaminotoluene; 2, subjecting the obtained 2,4,6-triacetylaminotoluene o oxidation and a decarboxylation reaction to obtain 1,3,5-triacetylaminobenzene; and 3, carrying out nitrification and hydrolysis reactions on the obtained 1,3,5-triacetylaminobenzene to obtain 2,4,6-trinitro-1,3,5-triaminobenzene. According to the invention, the raw material used in the preparation method is the cheap 2,4,6-trinitrotoluene, and used reactants or catalysts are commonly used products in the chemical industry, so the preparation method has characteristics of low cost and usage of simple and easily available raw materials. In addition, the preparation method also has the characteristics of short synthesis steps, simple operation of each step, high yield, high reaction rate, easy separation and collection of intermediate and final products and the like, and is beneficial for realization of mass production of TATB.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY
Construction waste garbage cleaning mechanism with recycling structure
InactiveCN113042148AEasy to separate and collectExtended service lifeGrain treatmentsVibration suppression adjustmentsRebarRefuse Disposals
The invention relates to the technical field of construction waste treatment, in particular to a construction waste garbage cleaning mechanism with a recycling structure. The construction waste garbage cleaning mechanism comprises a shell and a crushing device installed in the shell, sliding ways are formed in the two ends of the outer walls of the two sides of the shell, a first installation plate is fixedly connected to one side of the shell, the crushing device at least comprises a crushing mechanism, the crushing mechanism comprises a rotating roller, and the rotating roller is rotationally connected to the inner walls of the two sides of the shell. By means of a collecting mechanism, steel bars can be adsorbed and collected when concrete blocks are crushed, so that the steel bars and the concrete blocks are better separated and collected, and the problems that an existing cleaning mechanism only conducts simple smashing treatment on concrete, but cannot collect the steel bars in the concrete, the steel bars need to be picked out from the manually-crushed concrete blocks, and consequently the collecting efficiency of the steel bars is influenced are solved.
Owner:陈秀莉
Semiconductor exhaust gas purifying equipment
PendingCN108619846AEasy to separate and collectSave waterCombination devicesWater sourceEnvironmental engineering
The invention provides a semiconductor exhaust gas purifying equipment, and belongs to the technical field of exhaust gas purifying equipment. The semiconductor exhaust gas purifying equipment comprises a deduster; a first gas inlet is communicated with a part of the deduster on the left side external surface close to the upper part of the deduster; the external surface of the first gas inlet is fixedly provided with a first gas pump; a water accumulating tank is fixedly arranged at the internal bottom of the deduster; a dust filtering screen is movably arranged in the water accumulating tank;a water tank is fixedly arranged on the top end of the deduster; filter membrane is fixedly arranged in the water tank; the left side of the water tank is fixedly provided with a first water pump; abackflow pipe is arranged between the water tank and the water accumulating tank. The semiconductor exhaust gas purifying equipment can be used for preferable separating and collecting of dust in exhaust gas, is capable of recycling water, saving water source, purifying exhaust gas, and realizing effective separation of harmful substances from exhaust gas.
Owner:安徽京仪自动化装备技术有限公司
Preparation method and application of mosaic type magnetic imprinting adsorbent
ActiveCN111318265AHigh selectivityEasy to separate and collectOther chemical processesAlkali metal oxides/hydroxidesMolecularly imprinted polymerParamagnetic particles
The invention relates to a preparation method of a mosaic type magnetic imprinting adsorbent, and belongs to the technical field of specific separation functional material preparation. The preparationmethod comprises the following steps: firstly, preparing amino-modified Fe3O4 particles and Janus nano sheets, then preparing a Janus molecularly imprinted polymer by virtue of an ATRP molecular imprinting technology; combining the anisotropism of Alg-Ca<2+> with the anisotropism of a Pickering emulsion and the anisotropism of a Janus-MIPs nano sheet, and meanwhile, filling Fe3O4-NH2 to prepare amosaic Alg-Ca<2+> core magnetic molecularly imprinted adsorbent. The prepared mosaic type magnetic imprinting adsorbent has high adsorption capacity, and can effectively solve the problem that molecularly imprinted nano sheets are easy to stack; meanwhile, the Pickering emulsion is filled with paramagnetic particles, so that the Pickering emulsion has magnetic response and is easy to separate andrecover; and the adsorbent has an obvious dA molecule recognition performance, and is used for selective recognition and separation of dA in a water solution.
Owner:JIANGSU UNIV
Bamboo slicing device
InactiveCN113334513AEasy to separate and collectImprove deformationCane mechanical workingVeneer manufactureEngineeringMechanical engineering
The invention discloses a bamboo slicing device. The bamboo slicing device comprises a workbench, and a fixed guide mechanism, a slicing tool apron, a swing guide piece mechanism, a movable guide mechanism and a bamboo dragging mechanism which are sequentially arranged on the workbench; the workbench is divided into a blanking section and a finished product section, the fixed guide mechanism, the slicing tool apron, the swing guide piece mechanism and the movable guide mechanism are all located on the blanking section, the bamboo dragging mechanism can slide to the finished product section from the blanking section, and the swing guide piece mechanism, the movable guide mechanism and the bamboo dragging mechanism can be attracted through electromagnets; the fixed guide mechanism is fixedly installed on the finished product section, and a bamboo pushing device is further arranged on the front section of the fixed guide mechanism; the swinging guide piece mechanism can convey the sliced bamboo canes in a swinging manner; the movable guide mechanism is used for guiding the bamboo canes and cutting off joint edges left on the inner sides of the bamboo canes; and the bamboo dragging mechanism drags the sliced bamboo canes to the finished product section, the running speed of the bamboo dragging mechanism is lower than that of the bamboo pushing device, and the bamboo slicing device is beneficial to simplifying the processing procedure and improving the working environment of bamboo slicing.
Owner:ANHUI POLYTECHNIC UNIV MECHANICAL & ELECTRICAL COLLEGE
Vertical type fine rice milling device
InactiveCN108273585AEasy to transportEasy to handleGrain huskingGrain polishingElectric machineryEngineering
The invention discloses a vertical type fine rice milling device. The device comprises a horizontally arranged base, a material receiving mechanism and a shell breaking mechanism are arranged at the top end of the base correspondingly, and the material receiving mechanism is located on one side of the shell breaking mechanism. Through a material conveying chamber in the shell breaking mechanism, materials can be conveniently conveyed under the action that a first rotating motor and a spiral piece are matched, under the action that a third rotating motor in a processing chamber is matched withfirst umbrella teeth and second umbrella teeth, a rotating rod and a rice milling table can conveniently carry out shell breaking on the materials, in addition, under the action that a second rotatingmotor is matched with a linkage wheel and a shaft rod, a rice milling roller can conveniently further reinforce rice milling of the materials, in addition, a clamping piece under the transmission ofa rotating rod and a rice milling wheel can conveniently process the materials in a rice milling bin, an air blower is matched with a first channel and a second channel so that the materials can be conveniently and separately collected, then the operation is simple and convenient, the milling efficiency can be improved, the flow can be controlled, the labor pressure can be reduced, and requirements of different environments can be met.
Owner:郑然
Method for preparing catalyst from thermochemically treated wax-containing filter residues in Fischer-Tropsch synthesis and application of catalyst
ActiveCN112844401ASolving Disposal ProblemsEasy to operateMetal/metal-oxides/metal-hydroxide catalystsWater/sewage treatment by oxidationChemical treatmentPtru catalyst
The invention belongs to the field of solid waste resource utilization, and particularly relates to a method for preparing a catalyst by using residues obtained after thermal chemical treatment of wax-containing filter residues in Fischer-Tropsch synthesis and application of the catalyst; wherein the preparation method comprises the following steps: (1) crushing and grinding the thermal chemical treatment residues of the Fischer-Tropsch synthesis wax-containing filter residues; (2) roasting the crushed residues in the step (1) at high temperature, and cooling the product to obtain a catalyst crude product; (3) washing the crude product of the catalyst obtained in the step (2) by using an organic solvent, and drying the crude product. (4) carrying out acid pickling treatment on the catalyst crude product obtained after washing and drying in the step (3), and adjusting the pH value of the catalyst crude product to 6.5-7.5; and (5) drying the product obtained in the step (4) to obtain the catalyst for water treatment. The preparation method is suitable for almost all wax residues after thermochemical treatment, the technological operation is simple, the cost is low, and the prepared catalyst is high in reaction efficiency, suitable for various oxidation systems for various wastewater treatment and high in universality.
Owner:NJTECH ENVIRONMENT TECH CO LTD
Seawater desalination device based on rotary gas hydrate separation method
InactiveCN112062177AEasy to separate and collectAchieve recyclingSeawater treatmentWater/sewage treatmentThermal stimulationSoil science
The invention belongs to the field of seawater desalination, and provides a seawater desalination device based on a rotary gas hydrate separation method. The seawater desalination device can be used for continuously producing fresh water through single-line / double-line operation. If gas starts to be introduced into a stainless steel container, seawater is injected into a cylindrical porous mediumfrom a water inlet; under a certain temperature and pressure condition, hydrate crystals are nucleated on a porous medium-net-gas interface and grow towards a gas phase; generated hydrates are separated by a rotary scraper; hydrates collected in a decomposition area are decomposed through thermal stimulation of a heating jacket, and after obtained fresh water is collected to the height of a liquidlevel meter, a control valve is opened to discharge the fresh water into a water tank; and heat is absorbed in the hydrate decomposition process, and seawater is introduced into the cylindrical porous medium after being pre-cooled. Hydrates are generated in a seawater environment in a stainless steel container, hydrates on the surface of the cylindrical porous medium is separated by the rotary scraper, and desalted fresh water is obtained by heating and decomposing the hydrates.
Owner:DALIAN UNIV OF TECH
Production method for cell mass including neural cells/tissue and non-neural epithelial tissue, and cell mass from same
PendingCN111386338AEfficient manufacturingEasy to separate and collectSenses disorderNervous system cellsNeural cellCell mass
The present invention addresses the problem of providing a means of efficiently producing, from pluripotent stem cells, a cell mass that includes neural cells / tissue and non-neural epithelial tissue.Provided is a production method for a cell mass that includes 1) neural cells or neural tissue, and 2) non-neural epithelial tissue, said method comprising steps (1) and (2): (1) a first step in whichpluripotent stem cells are suspension-cultured in the presence of a Wnt-signaling pathway inhibitor, and a cell aggregation is formed; and (2) a second step in which the aggregate obtained in the first step is suspension-cultured in the presence of a BMP-signaling pathway activator, and a cell mass that includes 1) neural cells / tissue, and 2) non-neural epithelial tissue, is obtained.
Owner:SUMITOMO CHEM CO LTD
Automatic pipe welding machine and dust removal mechanism thereof
ActiveCN114654123AEfficient removalAvoid affecting recyclingWelding/cutting auxillary devicesAuxillary welding devicesCircular discDust control
The invention discloses an automatic pipe welding machine and a dust removal mechanism thereof, and the dust removal mechanism comprises a collection box placed on a base, and openings are symmetrically formed in the left surface and the right surface of the collection box; the top seat is arranged on the top surface of the collecting box; the air exhaust heads are uniformly mounted in the left air collection tank and the right air collection tank; the right end of the gas conveying pipe is horizontally inserted into the opening, and the gas conveying pipe is sleeved with a purging head and a partition piece; the purging head comprises a round box, an air nozzle and a sleeve; the partition pieces are symmetrically distributed on the left side and the right side of the blowing head, and each partition piece comprises a disc, an air bag and bristles. According to the automatic pipe welding machine and the dust removal mechanism thereof, the gas conveying pipe is sleeved with the fixing pipe, the welding part is installed on the fixing pipe, and the dust removal part is installed on the gas conveying pipe, so that dust removal and welding operation can be conducted on the welded pipe at the same time, the production efficiency is improved, the pipe wall is brushed through the bristles made of metal materials, and attachments on the pipe wall are effectively removed.
Owner:扬州万丰机械制造有限公司
Industrial sewage treatment equipment and use method thereof
ActiveCN112028202AFully contactedImprove flocculation efficiencyWater/sewage treatment by flocculation/precipitationWater/sewage treatment apparatusFlocculationSewage
The invention discloses industrial sewage treatment equipment and a use method thereof, belongs to the technical field of sewage treatment. The industrial sewage treatment equipment comprises a hard plastic cylinder and flocculation balls for flocculation, and each flocculation ball comprises a hollow plastic ball and a mounting cylinder arranged in the hollow plastic ball. The plurality of flocculation balls are driven to do irregular multi-angle free movement in industrial sewage by utilizing the acting force among the flocculation balls, so that an organic flocculation functional membrane is in full contact with the industrial sewage, the necessary stirring procedure in the flocculation process in the prior art is replaced, the cost of flocculation equipment is reduced, meanwhile, the phenomenon of scattering of flocculation gel lumps caused by shearing force generated by stirring of a stirring rod is avoided, the sewage flocculation efficiency is greatly improved, and after flocculation is finished, the multiple flocculation gel lumps can be adsorbed together and sink to the bottom in the hard plastic cylinder, so that sewage and the flocculation gel lumps are conveniently separated and collected.
Owner:山东艾普特暖通技术有限公司
Nanometer Na/Fe composite type solid acid catalyst and preparation method and application thereof
ActiveCN109621964AIncrease the active siteExcellent process parametersOrganic chemistryCatalyst activation/preparationNano catalystSolid acid
The invention belongs to the technical field of biomass utilization, and particularly discloses a nanometer Na / Fe composite type solid acid catalyst and a preparation method and application thereof. The preparation method of the catalyst comprises the following steps that ferrous chloride and ferric chloride are mixed to be uniform under the action of hydrochloric acid according to the certain ratio, then, sodium hydroxide is dropwise added, and the nanometer Na / Fe composite type solid acid catalyst is prepared through a forward sedimentation method. Biomass and the prepared nanometer catalystare mixed according to the certain ratio, pyrolysis is performed under the inert atmosphere, and the high-selectivity furfural product can be obtained. The catalyst is simple in preparation process,low in cost, high in selectivity, capable of solving the problems that in the prior art, furfural selectivity is low and few by-products are produced, and capable of achieving biomass directional conversion and high-value utilization.
Owner:HUAZHONG UNIV OF SCI & TECH
Immobilized enzyme carrier, immobilized enzyme and preparation method
PendingCN113652415AImprove structural rigidityEasy to separate and collectOn/in organic carrierOn/in inorganic carrierEnzyme structureGenipin
The invention discloses an immobilized enzyme carrier, an immobilized enzyme and a preparation method. According to the method, macromolecular particles of chitosan are attached to the surface of an egg shell membrane, magnetic Fe3O4 is uniformly precipitated and distributed on the egg shell membrane in a co-precipitation mode, the prepared magnetic Fe3O4 / CS / ESMP serves as an enzyme carrier of immobilized beta-glucosidase, the rigidity and tolerance of an enzyme structure are improved, and good operation stability is achieved; in addition, the prepared Fe3O4 / CS / ESM@BG can be repeatedly used, and the operation is simple and convenient. The Fe3O4 / CS / ESMP@BG is easy to separate and collect under the action of a magnetic field so as to be recycled, the use efficiency of enzyme is improved, and the prepared Fe3O4 / CS / ESMP@BG can be applied to biosynthesis of genipin.
Owner:SOUTHEAST UNIV
Method for producing refined light-color rosin by using turpentine as raw material
InactiveCN101649160BReduce consumptionThe process steps are simpleNatural resin chemical modificationResin acidAcid value
The invention discloses a method for producing refined light-color rosin by using turpentine as a raw material, which comprises the following steps: dissolving turpentine, purifying turpentine liquid,depositing and separating the rosin (resin acid), fusing the resin acid deposit, distilling and recycling the solvent and the terebinth, and the like. The rosin has the characteristics of light color, high acid value and low content of unsaponifiable matters, and achieves or exceeds the performance indexes of the refined light-color rosin prepared by the vacuum distillation technique. The methodhas the advantages of low equipment investment, simple operation and low operation cost, has favorable social and economic benefits, and is suitable for medium and small rosin fabrication plants.
Owner:GUANGXI UNIV FOR NATITIES
Salvage ship for large-range duckweeds on water surface
InactiveCN109881649AEasy to separate and collectEasy to disassembleWater cleaningRiver waterEngineering
The invention discloses a salvage ship for large-range duckweeds on the water surface. The salvage ship comprises a salvage ship body, a fixing rod is fixedly welded to the lower surface of the left end of the salvage ship body, an electroplated conveying steel pipe is arranged on the salvage ship body and penetrates through a hull, and the lower end of the electroplated conveying steel pipe is immersed into water and communicates with a floating type duckweed collector through a telescopic conveying pipe. The floating type duckweed collector can be used for collecting duckweeds, the conveyingsteel pipe can conveniently discharge the duckweeds to the surface of a permeation conveyor, and thus water and the duckweeds can be separately collected conveniently; a water flow collector right faces the lower part of the permeation conveyor to prevent water flow from being splashed in the whole hull, and meanwhile, a drainage pipe below can discharge surplus river water in time conveniently;a duckweed collecting box is arranged below the other end of the permeation conveyor to collect duckweeds, the duckweed collecting box is fixed on the hull through hasps and can be conveniently dismounted, and thus duckweeds can be conveniently transferred.
Owner:湖南夏龙医疗器械制造股份有限公司
Device and process for using high concentration CO for preparing methane
ActiveCN104909974AReduce recycling costsImprove economyHydrocarbon from carbon oxidesHigh concentrationPtru catalyst
The invention relates to a device and method for preparing methane, particularly relates to a device and method for using high concentration CO contained in chemical tail gas for preparing methane, and belongs to the chemical technical field. The device includes a first section methanation reaction device, a second section methanation reaction device and a third section methanation reaction device, inlet feed gas and inlet water vapor pass through the first section methanation reaction device, the second section methanation reaction device and the third section methanation reaction device in turn to obtain a product gas, and the process uses a three section methanation reactor. The transformation hydrogen filling and methanation can be performed in the same section catalyst layer by direct methanation, at the same time, CO2 is cycled for methanation degree control of the process, system temperature rising is effectively controlled, the catalyst requirement and process difficulty are relatively small, and the device has the advantages of small water consumption, small temperature rise, high controllability, simple and easy separation and collection of by-products, and the like.
Owner:SOUTHWEST RES & DESIGN INST OF CHEM IND
PtIn-coated MFI catalyst as well as preparation method and application thereof
ActiveCN113042098AEasy to separateEasy to separate and collectMolecular sieve catalystsMolecular sieve catalystMolecular sievePlatinum
The invention provides a PtIn-coated MFI catalyst. The PtIn-coated MFI catalyst comprises an MFI molecular sieve framework; and the Pt-In nanoparticles are uniformly coated in the pore channels. The invention provides a preparation method of a PtIn-coated MFI catalyst. The preparation method comprises the following steps: mixing a silicon source, a template agent, an indium source and a platinum source to form a solution; and carrying out hydrothermal treatment on the mixed solution in a hydrothermal kettle, and then cooling, centrifuging, washing, drying and roasting. According to the preparation method of the catalyst provided by the invention, a heterogeneous structure is realized, so that the catalyst is easily separated and collected from a reaction system, and on the basis of the interaction among different metal elements and the molecular sieve, when the catalyst is subjected to a propane direct dehydrogenation reaction in a fixed bed, and the catalyst has high stability while maintaining high conversion rate and high selectivity. The invention also provides an application of the PtIn-coated MFI catalyst.
Owner:UNIV OF SCI & TECH OF CHINA
Cadmium telluride nanocrystalline solar cell and preparation method thereof
ActiveCN110556433AReduce compoundingReduced series resistanceFinal product manufacturePhotovoltaic energy generationPower flowTransport layer
The invention discloses a cadmium telluride nanocrystalline solar cell and a preparation method thereof. The solar cell comprises a substrate, and a cathode layer, a cathode interface layer, a windowlayer, a photoactive layer, an anode interface layer and an anode layer which are stacked on the substrate in sequence, wherein the anode interface layer is a Spiro-OMeTAD film with the thickness ranging from 170nm to 240nm or a poly[bis(4-phenyl)(2, 4, 6-trimethylphenyl)amine] film with the thickness ranging from 10nm to 40nm. The solar cell is advantaged in that by introducing an organic material as a hole transport layer, recombination of carriers is effectively reduced, the electric leakage phenomenon is ameliorated, compared with a traditional inverted solar cell, the short-circuit current and the open-circuit voltage are improved, and performance of devices is improved. An all-solution method is adopted for processing, cost is low, manufacturing is easy and convenient, and large-scale production is expected to achieve.
Owner:SOUTH CHINA UNIV OF TECH
Efficient dust removal equipment capable of guaranteeing drying after humidification
InactiveCN112058478AEasy to separate and handleEasy to drySeed preservation by dryingCleaning using gasesElectric machineDust control
The invention discloses efficient dust removal equipment capable of guaranteeing drying after humidification. The efficient dust removal equipment comprises a conveying cylinder, a first motor, a dustcollector, a second motor, a heater and a third motor, wherein a screw rod is rotationally connected to the interior of the conveying cylinder, the upper right end of the conveying cylinder communicates with a water inlet pipe, an adjusting valve is arranged on the left side of the water inlet pipe, the dust collector is installed on the right side of the adjusting valve in a connected mode, a pull rod is connected to the lower end of a fixing block in a penetrating mode, a filter screen is arranged on the lower side of the dust collector, a feeding port is formed in the upper left end of theconveying cylinder, an opening is formed in the upper end of a separation drying cylinder, an electric telescopic ladder is fixedly installed on the inner wall of the upper end of the separation drying cylinder, and a turbine is connected to the middle of the separation drying cylinder in a penetrating mode. According to the efficient dust removal equipment capable of guaranteeing drying after humidification, grains and dust and the like can be conveniently separated, drying treatment can be conveniently carried out on grains and the like, and dust impurities can be conveniently collected andcleaned.
Owner:李元芬
Drug crushing device for pediatric nursing
InactiveCN110013906APrevents adhesive residueFaster and better separated collectionGrain treatmentsPediatric nursingCyclone
The invention discloses a drug crushing device for pediatric nursing, and relates to the technical field of ceramic medical treatment apparatuses. The device comprises an air handling box, wherein a grinding device is mounted at the front side of the upper end of the air handling box; a pneumatic cyclone separating device is connected to the front side of the grinding device; the grinding device comprises a guide housing which is fixed to the front side of the upper end of the air handling box; a semispherical filtering net is mounted at a through hole in a fitting manner; a grinding ball is fixed to the lower end of a connecting rod; an air outlet tube is rotatably mounted at the inner rear side of the guide housing; the pneumatic cyclone separating device comprises a pneumatic cyclone barrel, a tapered barrel and an air exhausting tube; and tapered edible sweet wrapper is arranged close to the inner sidewall of the tapered barrel. The device has the beneficial effects that air is blown through high pressure in order to remove the surface, so that the waste is reduced, and the next drug crushing operation is conveniently carried out; and meanwhile, the device is matched with the pneumatic cyclone separating device, so that drug particles can be quickly greatly separated and collected; and the edible sweet wrapper is damaged a little and achieves drug collection.
Owner:THE FIRST AFFILIATED HOSPITAL OF HENAN UNIV OF SCI & TECH
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