613 results about "Rapid mixing" patented technology

The object of the invention is a flexible plastic container for the spatially separated storage and, optionally, selective sterilization of the ingredients of preparations for parenteral or enteral use. The container comprises three compartments being suited for taking up the ingredients, namely carbohydrates within compartment 3, lipids within compartment 4, and amino acids within compartment 5 as well as connections between the compartments which can be opened sterilely from the outside. The proportions by volume of the compartments are selected such that rapid mixing of all ingredients without time-consuming pressing and kneading operations by the hospital personnel is possible within compartment 5.

This invention provides a method for preparing cerium oxide nanoparticles with a narrow size distribution. The cerium oxide nanoparticles obtained by the method of the invention are nearly all crystalline. The method comprises providing a first aqueous solution comprising cerium nitrate and providing a second aqueous solution comprising hexamethylenetetramine. The first and second aqueous solutions are mixed to form a mixture, and the mixture is maintained at a temperature no higher than about 320° K to form nanoparticles. The nanoparticles that are formed are then separated from the mixture. A further aspect of the present invention is an apparatus for preparing cerium oxide nanoparticles. The apparatus comprises a mixing vessel having a first compartment for holding a first aqueous solution comprising cerium nitrate and a second compartment for holding a second aqueous solution comprising hexamethylenetetramine. The mixing vessel has a retractable partition separating the first and second compartments. When the retractable partition is retracted, rapid mixing of the first aqueous solution with the second aqueous solution takes place to form a mixture, and the mixture is maintained at a temperature no higher than about 320° K to form nanoparticles therein.

The invention discloses a continual hydrothermal synthesizing method of lithium ion battery nanometer anode, which comprises the following steps: adopting continual hyper (sub) clinical hydrothermal synthetic technique to make nanometer graded LiFePO4 particle through hypercritical flow transfer mass and crystallizing elementary; adding conductive material to make electrode material; spraying the product liquid into low-pressure flashing room with cyclone separator directly; gasifying water in the flashing room into steam; draining out from the top of cyclone separator; sedimenting solid particle on the bottom of flashing room; collecting dry powder as product.

The present invention is a disposable apparatus for the rapid, low-volume solid phase extraction of analytes from a variety of sources. The apparatus of the present invention is configured as a pipette tip and contains a loosely confined stationary phase. The mobility of the stationary phase particles enables rapid mixing and equilibration with a sample solution during agitation. The analyte may thereby be extracted in less time with less solvent, removing the need for a separate concentration step.

The invention relates to a purification method and equipment for cool circulating water or town secondary sewage water, and is characterized in that the invention has the following steps: a quick mixing zone 1 for mixing a ready treated liquid and a mixing medicament, a flocculating reaction zone 2 for mixing and flocculating a mixed liquid with a backflow deposit substance to get a compact alum at an outlet of the zone, a depositing and concentrating zone 3 for separating a supernatant liquor and a suspension solid and for returning and draining a deposit substance, and a filtering facility zone 4 for purifying the supernatant liquor; the equipment of the invention mainly comprises the quick mixing zone, a high efficient clarification tank and a filtering zone; the invention designs the purification method and equipment for liquid and water; the water quality from the invention is stable, the cost is lower, which changes the prior purification method for liquid and water.

The invention discloses an agitator used for livestock feed processing. The agitator used for livestock feed processing comprises a stirring box; the stirring box is a cylinder with an opening on the upper end; the opening on the upper end of the stirring box is provided with a feed hopper; dispersing blocks are uniformly arranged in the feed hopper; a driving motor is fixedly arranged at the middle part of the lower end of the stirring box; an output terminal of the driving motor is provided with a material pushing shaft; the material pushing shaft in the stirring box is sleeved by a lifting barrel; the upper end and the lower end of the lifting barrel are fixedly connected with the material pushing shaft via fixing rods; a helical blade is arranged on the material pushing shaft in the lifting barrel; No.1 stirring rods are symmetrically arranged on the outside of the lifting barrel; the upper end of the material pushing shaft is fixedly provided with a driving gear. The agitator is simple and reasonable in structure design, is convenient to move, possesses buffer performance, is capable of realizing convection stirring of upper layer material with lower layer material in stirring, realizing reverse stirring of the materials in convection stirring, and improving material stirring effect greatly, is convenient for material rapid mixing, and is high in practicality.

The invention discloses a method for predicting the concrete strength based on a hybrid model. The method comprises the following steps: conducting strength experiments on concrete at different mixing ratios on site according to a standard concrete strength detection method, thereby obtaining a plurality of learning samples about the function relationships between cement x1, blast-furnace slag powder x2, fly ash x3, water x4, a water reducing agent x5, a coarse aggregate x6, a fine aggregate x7, a curing period x8 and other concrete component mixing information as well as the concrete strength y; training extreme learning machines, artificial neural networks and support vector machines in the hybrid model, and confirming the optimal extreme learning machine, artificial neural network and support vector machine according to the optimization goal of minimized relative errors; on the basis of the optimal extreme learning machine, artificial neural network and support vector machine, confirming the optimally predicted concrete strength y with a decision function based on adaptive weight according to the predicted values of three modeling methods, wherein the optimally predicted concrete strength y can be utilized for judging whether concrete component input information meets the engineering design requirements or not. Through adoption of the method, the advantages of the three modeling methods are enhanced while the disadvantages of the three modeling methods are avoided, and the comprehensive predicting effect is better, so that the adaptability to different actual work conditions, namely the robustness, can be improved, and important significance is provided for rapid mixing ratio design and quality control for concrete.

The invention relates to biomass supercritical and subcritical combined continuous type pretreatment and hydrolysis equipment and a method. The equipment comprises a water storage tank, a material storage tank with a stirring device, a preheating system, a supercritical reaction system, a primary cooling system, a subcritical reaction system, a final cooling system, a product collection system and an electronic temperature controlling system. The method comprises the following processing steps: water reaching preheat temperature and biomass material paste are rapidly mixed and then injected into the supercritical reaction system to be pretreated under supercritical condition; the reaction product is cooled through the primary cooling system and depressurized through a pressure reducing valve and then enters into the subcritical reaction system to be hydrolyzed sequentially, therefore fermentable sugars are continuously generated and collected. The invention utilizes the advantages of the supercritical method that the reaction is rapid, activator is not required and product inhibition does not exit, realizes that the continuous hydrolysis conversion of wood fiber biomass can generate fermentable sugars, is the foundation of subsequent resource recovery technologies, such as ethanol production by fermentation and the like, and has wide application prospect.

The invention discloses a nucleic acid extraction method by virtue of a paramagnetic particle method. The nucleic acid extraction method comprises the following steps: sub-packaging 'N' [mu]M (M refers to mol/L) of sample ('N' is less than or equal to 300 and greater than or equal to 50), 'N' [mu]M of lysate and '0.1N' [mu]M of protease K in a No.1 nucleic acid extraction plate, conducting a cracking reaction at 70 DEG C for 10-60min, and then adding '1.1N' [mu]M of magnetic particle-binding buffer; sub-packaging '2.5N' [mu]M of washing solution A, '2.5N' [mu]M of washing solution B and '0.25-0.5N' [mu]M of TE solution in No.2, No.3 and No.4 nucleic acid extraction plates; and under the action of magnetic force, adsorbing magnetic particles in the No.1 nucleic acid extraction plate by virtue of a magnetic bar, conducting transferring, releasing, rapid mixing and magnetic absorption and sequentially processing the magnetic particles by virtue of the No.2, No.3 and No.4 nucleic acid extraction plates, so as to obtain extracted nucleic acid. With the application of the method disclosed by the invention, the influence of impurities on nucleic acid extraction from saliva and other biological samples is effectively reduced, so that nucleic acid extraction efficiency and nucleic acid purity are improved.

The invention provides a composite technology for treatment of urban wastewater in a complete set of physical and chemical methods. When the urban wastewater flows into the system, large-particle impurities are basically removed through a grille, the wastewater is then rapidly mixed with a plurality of compound medical preparations and returning chemical sludge in a multi-point dosing mixer and then flows into an efficient complex coagulation-precipitation system for flocculation and precipitation, the supernate after precipitation flows into a multi-phase composite filter, and water is finally discharged after filtration, ion exchange and adsorption. The chemical sludge can be further used for processing building materials after stabilization, acidification, alkalization and chemical phosphorus recovery, thereby realizing the utilization of the sludge resource. The invention has the advantages of low requirements for the ambient temperature and flexible starting and operation. Compared with the complex process for advanced treatment with serial combination of the traditional secondary biological treatment, coagulation, precipitation and filtration, the invention shortens the overall treatment flow, and effectively reduces the infrastructure investment cost.

The invention relates to a treatment device and a recovery method for zero sludge resource recovery of heavy metal wastewater, the heavy metal wastewater which mainly contains copper is coagulated and sedimented chemically, after that, sludge with high-concentration copper ions is formed by concentration, the heavy metal sludge is dipped in mixed liquid of sulfuric acid and hydrogen peroxide, thereby obtaining impregnation liquid with the high-concentration copper ions; ammonia water is further used for adjusting the pH value of the impregnation liquid, the selective impregnation is carried out, ammonia copper solution and residues which are rich in iron or aluminium can be obtained after the solid-liquid separation, the ammonia copper solution is done with the procedure of heating and ammonia distillation, then copper oxide and ammonia with very high utilization values can be obtained by recovery, wherein, the generated residues are recovered to be directly added in a rapid mixing tank during the wastewater treatment process as a coagulating agent, the harmless treatment is carried out by wet treatment, or the resource recovery is carried out by using the dry smelting method to recover the iron or the aluminium, and the generated ammonia during the procedure of heating and ammonia distillation can be recovered and reused. The purposes of zero sludge, zero waste and zero emission output can be achieved.

The present invention relates to salt solution treating technology, and is especially process of extracting polymethylene polyphenyl polyamine from its salt water solution. The process includes two steps, extraction and separation. In the extraction step, salt water solution and extractant are mixed fast in a hypergravital rotation bed as the extractor, and polymethylene polyphenyl polyamine is extracted from the salt water phase to extracted liquid phase. In the separation step, the extracted liquid phase is separated from the salt water phase in separating apparatus. One stage of extraction can reduce the concentration of polymethylene polyphenyl polyamine in salt water from about 1000 mg/L to below 20 mg/L, and two stages of extraction can reduce to below 1 mg/L. The present invention has greatly raised extraction efficiency and reuse of the waste salt solution.

The invention provides a method for preparing nanometer molybdenum disulfide by the aid of a microemulsion system. The method includes steps of chemically reducing hexamolybdate, then adding sulfide into the hexamolybdate to perform sulfidation reaction so as to generate thiomolybdate sulfite; adding the thiomolybdate sulfite into TritonX100, isoamyl alcohol, normal heptane and secondary deionized water to form microemulsion a; adding hydrochloric acid into TritonX100, soamyl alcohol, normal heptane and secondary deionized water to form microemulsion b; adding the microemulsion b into the microemulsion a; fast mixing and stirring; leading acid sinking reaction to be thorough to obtain a product; and obtaining the nanometer molybdenum disulfide after the product is separated centrifugally, washed and dried in a vacuum manner. The preparation method is simple, reaction conditions are easy to be controlled, stability is good, generated particles are uniform, appearances are neat, and the nanometer molybdenum disulfide is expectably prepared on a large scale.

The invention discloses an impinging stream high-shear reactor for liquid-liquid quick mixing and reaction, which comprises a cylindrical reactor shell, a rotor, a stator and a main drive shaft, wherein the center of an end wall at one end of the reactor shell is provided with a first feed pipe; the end of the first feed pipe, which is positioned in the reactor shell, is a dead end; a discharge port of the feed pipe is arranged near the dead end; a second feed pipe is arranged around the first feed pipe; the discharge port of the second feed pipe is positioned in the reactor shell and opposite to the discharge port of the first feed pipe; the dead end of the first feed pipe is movably connected with the main drive shaft through a bearing; the main drive shaft is provided with a rotor base connected with the rotor; the stator is arranged on the internal surface of the reactor shell or arranged on the internal surface of the reactor shell through the stator base; the stator meshes with the rotor; and a discharge port of the reactor is arranged on the other end of the reactor shell. The reactor of the invention has the advantages of favorable mixing effect, low equipment investment and convenient heat exchange, and can not easily produce blocking.

Disclosed is a method for nano-cerium oxide preparation. The azeotropic mechanism will be introduced to the precipitation method; surfactant is added to 0.1-0.5 mol / L cerium salt solution and precipitator is rapidly added for reaction, then the gel produced after the reaction is washed by ionic water and mixed with a certain amount of organic alcohol under rapid mixing; then the mixture is poured into an azeotropic device to be slowly heated above the alcohol boiling point; through refluxing, the gel is taken out and dried to obtain precursor powder; through the baking of the precursor powder, high-purity active CeO2 is obtained. The nano-CeO2 prepared by the present invention is within 5 to 19 nm in grain size, which is smaller and more uniformly, with better dispersibility and greater activity. The organic alcohol used in the azeotropic distillation process is recyclable and is low in cost and can prevent environmental pollution.

The invention relates to a liquid-liquid fast-mixing reactor, which comprises a housing, an inner casing, a liquid conducting tube, an injector, a demister, a backing sheet, a pad, an adjusting valve, a manometer, wherein the housing (1) has a liquid feed inlet (8), the necked-in parts, and a liquid outlet (3); the inner casing (2) has the liquid conducting tube (5), the injector (4), the air outlet (10), the adjusting valve (11) and the manometer (12) inside. The space between the inwall of the housing (1) and the inner casing (2) forms a channel cyclone or non-cyclone through which a fold of liquid inlets, and another liquid passes the liquid conducting tube and the injector and forms the droplet distributed circlewise, the droplet connects with the film formed when the first fold of liquid passing the chine, and the two folds of liquid mix in the meeting point rapidly, then the product will be discharged from the liquid outlet (3).

The invention relates to a high-concentration water-in-oil emulsion-state associating polymer fracturing fluid and a preparation method thereof. The fracturing fluid comprises the following components in mass fraction: 38.7-45.18% of water, 25.30-28.67% of diesel oil, 25-30% of a fracturing fluid thickening agent and 2.53-2.88% of an emulsifier. The high-concentration water-in-oil emulsion-state associating polymer fracturing fluid disclosed by the invention has a stable time greater than 15 days at 0 DEG C-40 DEG C and has the characteristics that the fracturing fluid is easy to prepare, dissolve and disperse and the like, and rapid mixing, construction and fracturing on the spot can be achieved.

The invention relates to a radial fixed bed reactor for oxydehydrogenation of butylene. The radial fixed bed reactor adopts the technical scheme that the radial fixed bed reactor is a cylindrical vessel with a catalyst bed, a rapid mixing device is arranged at the top of the reactor and consists of a tapered tube and a straight tube, nozzles are mounted on a side wall of the tapered tube, a mixing cavity is formed in the tapered tube, a distribution cavity is formed between the tapered tube and the straight tube, a porous distribution plate is arranged at the top of the tapered tube, an inlet distributor is connected with the downside of the mixing device, the catalyst bed of the reactor consists of a fan-shaped cylinder distributor positioned at an outer ring and a center porous wall cylinder positioned at an inner ring, a catalyst is filled in the middle of the catalyst bed, and a cover plate sealing structure is arranged at the top of the catalyst, so that the problems existing in the prior art that a reactor is subjected to partial carbon deposition easily and a catalyst regeneration period is short due to the fact that butylene, water steam and air are not mixed uniformly are better solved, and the radial fixed bed reactor can be used for industrial production for preparing butadiene through the oxydehydrogenation of butylene.

A swirl inducer or mixer for location within a tube or duct. The swirl inducer may extend within the tube or duct and has an active surface over which a fluid flows to induce a swirling vortical flow within the fluid. The swirl inducer induces vortical flow in the tube or duct, which conforms with the path of least resistance and minimizes the amount of energy that is applied to the fluid to cause it to flow through the tube or duct and that causes the greatest, most rapid mixing of fluids passing through the tube or duct.

The invention relates to the field of initiating explosive devices, in particular to a nano-explosive preparation system and a nano-explosive preparation method based on the microfluidic technology. The system comprises a fluid driving unit, a recrystallization unit, a sample collection unit and a connection component; the fluid driving unit is used for driving solvents and non-solvent solutions;the recrystallization unit comprises a temperature control device and a microchip; the microchip comprises a micro-mixing structure; after the fluid driving unit drives the solvents and the non-solvent solutions to contact with the microchip, rapid mixing can be realized at a recrystallization temperature under the action of the micro-mixing structure to form suspensions; the sample collection unit is used for collecting the suspensions flowing out from the microchip; the connection component is sequentially connected with the fluid driving unit, the recrystallization unit and the sample collection unit. The nano-explosive preparation system and the nano-explosive preparation method have the advantages that the solvents and the non-solvent solutions are rapidly mixed to react to generate the suspensions through the temperature control device and the micro-mixing structure of the recrystallization unit, and the suspensions are washed, filtered and dried to obtain nano-explosives with uniform crystal forms, good crystal appearance and concentrated particle size distribution.