Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

54results about How to "Avoid mass production" patented technology

Preparation method of nanometer silver powder with particles controllable

ActiveCN104014804AAvoid cloggingMake up for the lack of concentrationNanotechnologyTowerReducing agent
The invention discloses a preparation method of nanometer silver powder with particles controllable. The method includes the following steps that silver nitrate and dispersants are mixed with water in sequence in proportion so that an oxidizing mixed solution A can be obtained; reducing agents are added into water and stirred to be dissolved, then the pH value of the solution is regulated to range from 7.5 to 13.5 through small molecular amine, and a reducing solution B is obtained after stirring and dissolving; the oxidizing mixed solution A and the reducing solution B are pumped into a spraying nozzle according to the volume ratio ranging from 1:10 to 10:1, the oxidizing mixed solution A and the reducing solution B are sprayed into a spraying drying tower through hot air at the temperature ranging from 35 DEG C to 150 DEG C at the speed ranging from 1 kg / h to 8000 kg / h, and powdery solids are formed and subside to the bottom of the drying tower; powder airflow obtained through the reaction is pumped into a separation tower to be further separated, and finally, silver powder and redundant reducing agents are separated so that the nanometer silver powder can be obtained. The preparation method has the advantages of being simple in process, convenient to operate and capable of achieving mass production fast.
Owner:福建富轩科技有限公司

A kind of method utilizing dual catalyst heterogeneous activation persulfate to treat organic waste water

The invention discloses a method for treating organic wastewater by using double catalysts to heterogeneously activate persulfates, belonging to the technical field of water pollution control. According to the method, nano copper oxide and zero-valent iron particles are used as a combined catalyst to activate the persulfates to generate free sulfate radicals with strong oxidizing property, so that refractory organics are removed from the wastewater. Compared with a homogeneous persulfate water treatment technology, the method has the advantage that the heterogeneous catalysts can efficiently and continuously activate the persulfates to achieve a heterogeneous activation effect due to the properties of relatively large specific surface area, relatively high catalytic activity and the like. The double-catalyst heterogeneous persulfate activation water treatment technology established by the method disclosed by the invention is applicable to treatment of various kinds of organic wastewater, is high in efficiency, good in durability and convenient in operation, can efficiently remove toxic and harmful pollutants from the wastewater within a relatively wide pH range, provides a broad prospect for treating toxic, harmful and non-biodegradable organic wastewater, and has a great application potential in the field of environmental pollution treatment.
Owner:SOUTH CHINA UNIV OF TECH

Fiber hairbrush scraper

The invention relates to a fiber hairbrush scraper for paving and conveying powder in a laser rapid forming process. The fiber hairbrush scraper consists of a supporting bracket and a hairbrush part, wherein a hairbrush is attached to the supporting bracket by virtue of an adhesive. In the powder paving process, on the one hand, when powder particles with the grain size being greater than the thickness of a powder paving layer enter between the scraper and a workpiece, the powder particles can be extruded, so that the frictional force between the scraper and the workpiece is increased; on the other hand, a metal solution is easily nodulized in a setting process. Problems on the above two aspects lead to bending deformation or movement of a formed piece in a forming process to affect the powder paving uniformity, so that the processing precision is reduced, or even the workpiece cannot be processed. The carbon fiber hairbrush scraper can be used for effectively solving the problem, and not only is suitable for the processing process of products with relatively great dimension, but also has advantages in processing microstructures. The carbon fiber hairbrush has the advantages of simple manufacturing, low processing cost, strong practicality, long service life and the like, is suitable for massive production and has a great economic benefit.
Owner:BEIJING UNIV OF TECH

Coking desulfurization waste liquid pretreatment device

The invention discloses a coking desulfurization waste liquid pretreatment device belonging to the technical field of coking desulfurization waste liquid treatment equipment and being used for rapidly removing sulphur and pigment in a coking desulfurization waste liquid. The technical scheme is as follows: a liquid inlet pipeline of a pressure pump and a liquid inlet pipeline of a water jet machine are respectively connected with a liquid outlet of a flotation tank; a liquid outlet pipeline of the pressure pump and a liquid outlet pipeline of the water jet machine are respectively connected with a liquid inlet of a dissolved air tank; a liquid outlet pipeline of the dissolved air tank is connected with the floatation tank; an infusion pipeline of a dosing tank is connected with the flotation tank through a dosing pump; and a sediment scraper is arranged on the flotation tank. According to the invention, the desulfurization waste liquid containing a surfactant is pressurized and subjected to air dissolution and is released at reduced pressure through an aeration head, then, air bubbles formed by the surfactant can be used for efficiently adsorbing and separating organic matters, suspended solids and metal ions, and dross can be removed by the sediment scraper, so that the aim for pre-treating the waste liquid is achieved. The coking desulfurization waste liquid pretreatment device is low in byproduct yield and capable of avoiding generating a great number of active carbon wastes in an active carbon decoloring technology, and has the advantages of simple structure and good use effect.
Owner:HEBEI IRON AND STEEL

Method for preparing high-performance sintered neodymium-iron-boron magnet based on grain boundary addition

The invention discloses a method for preparing a high-performance sintered neodymium-iron-boron magnet based on grain boundary addition. The method comprises the steps that firstly, main alloy is prepared according to the composition of atomic ratio Nd: Fe: B=2: 14: 1; main alloy and two kinds of grain boundary phase micron powder of a heavy rare earth compound and a high melting point element areprepared by the method of gas atomization or rapid solidification casting, hydrogen explosion and jet milling; three kinds of powder are uniformly mixed by compositely adding the micron-level heavy rare earth compound and a high melting point element regulating grain boundary structure; a flake is acquired through magnetic field molding, cold isostatic pressing and the like; and finally dischargeplasma sintering (SPS) and secondary tempering are carried out to acquire the high-performance sintered neodymium-iron-boron magnet with the maximum magnetic energy product greater than or equal to 45 MGOE and intrinsic coercivity greater than or equal to 25KO. Compared with the prior art, the method provided by the invention has the advantages of high processing efficiency, low production cost and good consistency of magnetic properties, is easy to realize commercial applications, can well meet customer needs, and is very suitable for preparing the high-performance sintered neodymium-iron-boron magnet.
Owner:GUANGXI UNIVERSITY OF TECHNOLOGY

Environment-friendly energy-saving boiler

The invention provides an environment-friendly energy-saving boiler. The environment-friendly energy-saving boiler comprises a chassis, a boiler body is fixedly installed on the chassis, and the boiler body is internally provided with a boiler furnace and a reversal chamber which is located at the rear end of the boiler furnace; a combustion engine is arranged at the portion, corresponding to theboiler furnace, of the front end of the boiler body, the front end of the boiler body is further provided with a front smoke box, and the rear end of the boiler body is provided with a rear smoke box;and a first smoke tube group is arranged between the reversal chamber and the front smoke box, a second smoke tube group is arranged between the front smoke box and the rear smoke box, and a chimneybase which communicates with the rear smoke box is arranged on the rear smoke box. The environment-friendly energy-saving boiler is characterized in that an energy-saving condenser is installed on thechimney base and provided with a connecting smoke flue which is connected with a chimney; a smoke recirculating tube is arranged between the chimney base and the energy-saving condenser, the other end of the smoke recirculating tube is connected with an air inlet of the combustion engine, the volume of smoke, sucked into the combustion engine, in the smoke recirculating tube accounts for 10%-16%that of the smoke exhausted in the chimney base, and the volume heat load of the boiler furnace ranges from 850 KW / m<3> to 1,050 KW / m<3>. Not only can the using requirement be met, but also the environment-friendly energy-saving boiler is more energy-saving and environment-friendly compared with an existing hot-water boiler.
Owner:CHONGQING ZHONGGUO ENERGY TECH

Electret filter base paper based on natural plant fibers as well as preparation method and application of base paper

The invention discloses electret filter base paper based on natural plant fibers as well as a preparation method and application of the electret filter base paper, and the preparation method comprisesthe following steps: (1) defibering and dispersing paper pulp cellulose, and adding a conductive polymer material monomer to obtain a first mixed suspension; (2) adding an oxidant into the first mixed suspension, conducting stirring and reacting for 1-3 hours at 0 DEG C in an ice bath, and conducting filtering, washing, drying and defibering to obtain a modified second mixed suspension; (3) adding polylactic acid fibers, a reinforcing agent, SiO2 and nanocellulose into the second mixed suspension, then conducting defibering and uniform mixing, and conducting papermaking to obtain paper; and (4) carrying out electret treatment on the prepared paper to obtain the filter base paper with the surface potential of 300V-400V. According to the method disclosed by the invention, the plant fiber isused as a base material, polyaniline is introduced into the surface of the fiber through a chemical modification method, and the added functional additive has excellent electret stability and good mechanical properties, so that the filtering efficiency of the base paper can be greatly improved.
Owner:QILU UNIV OF TECH +1

Bearing outer surface grinding and conveying and machining all-in-one machine

The invention discloses a bearing outer surface grinding and conveying and machining all-in-one machine. The bearing outer surface grinding and conveying and machining all-in-one machine comprises a conveying device and a grinding device, the conveying device comprises a vertical conveying unit, a feeding rail arranged at the discharging end of the vertical conveying unit and a material pushing unit connected with the discharging end of the feeding rail, and the grinding device comprises a machining unit and a feeding rail arranged in the machining unit and used in cooperation with the material pushing unit. According to the bearing outer surface grinding and conveying and machining all-in-one machine, the conveying and machining are integrated, the bearing outer surface grinding and conveying and machining all-in-one machine has the advantages of being good in lifting effect and free of noise; the problem of blockage of the bearing is solved, when the bearing is pushed to the machining device, the feeding efficiency is improved by driving the bearing to rotate; due to the bearing cannot be poured, the original placing state is lost, the problem of the feeding process is hindered,the outer peripheral surface of the bearing can be rapidly ground without clamping in the grinding process, and the bearing outer surface grinding and conveying and machining all-in-one machine realizes batch production, is convenient and rapid, and is worthy of popularization.
Owner:浙江景宁精工轴承有限公司

Composite rice soup beverage capable of resisting oxidation and inhibiting lipase and preparation method thereof

The invention discloses a composite rice soup beverage capable of resisting oxidation and inhibiting lipase and a preparation method of the composite rice soup beverage, and belongs to the technical field of functional foods. Composite rice soup is prepared from a mulberry-Chinese wolfberry water extract and brown rice soup according to a mass ratio of (1:1)-(1:3), and maltitol accounting for 7-13% of the mass of the composite rice soup, citric acid accounting for 0.02-0.08% of the mass of the composite rice soup and vitamin C accounting for 0.10-0.20% of the mass of the composite rice soup are added into the composite rice soup, wherein the mulberry-Chinese wolfberry water extract is obtained by preparing Chinese wolfberry and mulberries into a Chinese wolfberry-mulberry mixture accordingto a mass ratio of (1:2)-(1:4) and then mixing the Chinese wolfberry-mulberry mixture with distilled water according to a mass ratio of 1:20 for extraction, and the brown rice soup is obtained by mixing germinated brown rice and distilled water according to a mass ratio of 1:10 for extraction. The beverage is unique in formula and controllable in quality, contains nutrients and active substancessuch as protein, vitamin C, polyphenol, polysaccharide and the like, has the effects of resisting oxidation and inhibiting pancreatic lipase activity, and can be drunk by people with obesity, hyperlipidemia or hyperglycemia and the like.
Owner:SHAANXI NORMAL UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products