147results about How to "Reduce post processing" patented technology

The invention discloses a vacuum infusion forming method for a carbon fiber composite structure member. The method comprises the steps as follows: making a large-size carbon fiber composite wind power blade structure member by a vacuum infusion forming technology; bonding and fixing a guide net to a mould by a transparent double-sided tape for preventing deformation of carbon fiber fabrics due to deformation of the guide net to guarantee that carbon fiber sheet is consistent in orientation so as to obtain a composite structure member with higher mechanical performance; preheating a resin mixing solution with a carbon fiber preforming body at first to guarantee the resin mixing solution to be quickly infused in a low-viscosity state; and sealing the upper surface of the carbon fiber preforming body with a unidirectional breathable film to form a surface breathable channel, and enabling the resin mixing solution to permeate from surface and to fill fully under vacuum, thus completing the vacuum infusion forming process. The method is suitable for the carbon fiber fabrics which are shaped by hot melting lines and have different surface densities; and compared with the carbon fiber prepreg forming process, the method has the advantages of long material availability period, high process stability and low product cost, and is favorable for popularization and application.

The invention is concerned with a kind of high efficiency water treatment equipment and technology belonging to water treatment field. The middle parts of the equipment are two flocculating rooms having mesh setting with disturbing flow, and the bottom of the flocculating room is precipitation tank. The suspending layer of active mud residue is out of the flocculating room and there is slanting pipe on top of it and concentrate room under it. The pipe excluding residue sets in the suspending layer of active mud residue, and the bottom of clean tank is filler to exclude residue, and there is siphon pipe connecting with the filler. There are grooves excluding residue at top of the flocculating room connecting with the pipe excluding residue and the siphon pipe connects with the residue reuse tank. The filler to exclude residue connects with a pump of reused residue. The equipment gathers the small air flotation, flocculating, active mud residue layer flocculating, and reused technology. Compared with traditional mixed and coagulate deposition technology, it saves 40 percent of field, reduces 10 percent of drug and enhances 15 percent disposal efficiency.

A forming fabric for use in the production of nonwoven products comprising a plurality of protuberances having a predetermined size and shape, wherein the protuberances are arranged in a pattern that defines a size and shape of nonwoven sheets formed therefrom.

The invention discloses a thermosetting plastic. The thermosetting plastic is characterized by comprising the following components in parts by weight: 60-95 parts of thermosetting resin, 5-40 parts of low-shrink additive, 150-300 parts of an inorganic mineral filler, 2-4 parts of an initiator, 0.6-1 part of calcium hydroxide micro powder, 2-6 parts of zinc stearate micro powder and 30-60 parts of glass fiber. In comparison with a conventional thermosetting plastic, the thermosetting plastic can be solidified more rapidly, high strength can be maintained within a wide temperature range, and the flame-retardant effect is good.

The invention provides a drag reducer and a preparation method thereof. The drag reducer is a suspension liquid containing poly(alpha-alkene), silicone oil, an isolating agent, and a surfactant. The preparation method comprises the following steps: (1) subjecting alpha-alkene to coordination polymerization in silicone oil; (2) mixing the system obtained in the step (1) with an isolating agent after the coordination polymerization, and then adding a surfactant so as to obtain the suspension liquid. The drag reducer has the advantages of good stability, low viscosity, good fluidity, and user-friendliness. The preparation method is simple and can be easily applied to the industry.

The invention discloses a high-intensity ardealite wall brick and the producing method. And the composition weight ratio of semi-hydrated ardealite to anhydrous ardealite to flyash to coagulant is (70-85) : (12-20 ): (15-20 ): (15-25), where the coagulant is 12-20% silicasol water solution. And the invention uniformly blends them in sprinkling mode, mechanically places the mixture into a mould and shapes in high pressure, mechanically demoulds, and naturally hydrates to make it. And the invention firstly uses large amount of ardealite raw material in building materials, where the synthetic utilization of ardealite is up to 80%; and it is low-cost and saves land resources. After processed, it accords with national stipulated nuclear radiation indexes, has high hardness, reduces equipment investment and reduces cost of product.

The invention discloses a double-phase rotating stream separation system. Operation and maintenance of the double-phase rotating stream separation system are convenient, and the separation efficiency is higher. The double-phase rotating stream separation system is composed of a motor, a booster pump, a long circulating pipeline, a short circulating pipeline, a rotating stream body and a one-way valve which are connected successively; the rotating stream body is composed of a rotating stream chamber cylinder, a separation cone segment cone body, an external bottom flow segment cylinder, and a bottom flow pipe with reduced diameter steps which are connected successively; the rotating steam body comprises tow overflow ports and two bottom flow ports. Compared with conventional rotating flow separation devices, the double-phase rotating stream separation system can be used for eliminating short-circuit flow, reducing circulation flow, and reducing bottom flow port light phase content greatly; flow field stability of the double-phase rotating stream separation system is increased; high efficiency separation treatment of mixed phases is promoted; the double-phase rotating stream separation system can be used for circulating treatment of the mixed phase containing light phase in short-circuit flow and the bottom flow ports, is small in occupied space, and is simple in operation and management.

The invention discloses high-precision high temperature and corrosion resisting nanometer filter cloth with adsorption and decomposition functions and a making method thereof. The filter cloth comprises a middle base cloth layer, wherein a superfine fiber dust-facing surface layer is arranged on the upper surface of the base cloth layer, an air transmitting and purifying surface layer is arranged on the lower surface of the base cloth layer, the superfine fiber dust-facing surface layer is formed by laying nanometer activated carbon fibers and polytetrafluoroethylene superfine fibers into a net, the base cloth layer, the superfine fiber dust-facing surface layer and the air transmitting and purifying surface layer are needled into felt, and a PTFE emulsion dipping layer is arranged on the surface of the felt. The filter cloth has the advantages that the nanometer activated carbon fibers and a polytetrafluoroethylene base material are used for making the filter cloth, and the filter cloth has a microcellular structure, can adsorb and decompose harmful gases and is high in filtering precision; meanwhile, according to the making method, by means of the dipping treatment process, the surface of the filter cloth has certain hydrophobicity, and the resistance to acid, alkali and corrosion of the filter cloth is improved.

The invention discloses a preparation method of lithium hexafluorophosphate. According to the preparation method, lithium fluoride reacts with phosphorus pentafluoride, and liquid carbon dioxide or supercritical carbon dioxide fluid is taken as the reaction solvent. The preparation method is green and environmentally friendly, the resources are saved, and the cost is low. The quality of obtained lithium hexafluorophosphate product is good. The product barely contains any impurity that damages lithium hexafluorophosphate taken as cell electrolyte. The purity is high, the production process is safe, and the preparation method is suitable for industrial production.

The invention belongs to the technical field of organic synthesis and provides a method for performing catalytic hydrogenation on p-chloronitrobenzene with a modified Raney nickel catalyst and preparing p-chloroaniline. The method comprises the following steps: adding p-chloronitrobenzene, the modified Raney nickel catalyst with an additional metal material and a solvent in a high-pressure reaction kettle, wherein the weight ratio of p-chloronitrobenzene to the solvent is 1:2-1:5 and the weight ratio of p-chloronitrobenzene to the catalyst is 1:(0.02-0.06); performing nitrogen replacement, then performing hydrogen replacement, wherein the pressure of hydrogen is 1.0-3.5MPa and the reaction temperature is 60-100 DEG C; and stirring to react for 1-4 hours to obtain the product p-chloroaniline. The method has simple technology, low demand on equipment and low environmental pollution and is easy to realize industrialization; and the reaction conversion rate is 99.9%, the selectivity is not less than 98% and the yield is not less than 95%.

The invention provides a clothes dryer which comprises a housing assembly, a liner assembly, a telescopic frame assembly, a heating assembly and an air exhaust assembly. The liner assembly is arranged in the housing assembly and consists of an inner liner, wherein the inner liner is a hollow cavity, and an opening is formed in one side of the hollow cavity. The telescopic frame assembly is arranged in the hollow cavity and used for placing clothes to be dried and can be pushed in or drawn out from the inner liner. The heating assembly is arranged in the housing assembly and located at the outside of the liner assembly. The heating assembly is connected with the inner liner and used for drying the clothes to be dried in the telescopic frame assembly. The air exhaust assembly is arranged in the housing assembly and located at the outside of the liner assembly. The air exhaust assembly is communicated with the inner liner and used for promoting the gas flow in the telescopic frame assembly. The clothes dryer has the advantages that the clothes can be dried quickly, and the clothes after being dried are straight and not wrinkled; the post-processing procedure for drying and picking up the clothes can be omitted, and the user experience can be enhanced.

The invention discloses a forming process and a special processing device for an ultrathin protective cover sleeve. The forming process comprises the following steps: 1, preparing a cover sleeve material and a die; 2, preparing a vacuum adsorption jig and installing the vacuum adsorption jig in an adsorption device on a working table; 3, starting the vacuum adsorption device and an engraving and milling electric spindle on the working table to prepare a semifinished sheet metal of the ultrathin protective cover sleeve; 4, carrying out surface processing process on the semifinished sheet metal of the ultrathin protective cover sleeve; and 5, using the die for carrying out pressing forming on the semifinished sheet metal of the ultrathin protective cover sleeve by a hot press so as to obtain the ultrathin protective cover sleeve. The working table of the special processing device is provided with the vacuum adsorption device and the engraving and milling electric spindle. The process disclosed by the invention enables forming efficiency of the ultrathin protective cover sleeve to be high and can be used for single plastic or various composite materials to carry out forming processing of the ultrathin protective cover sleeve; the die and equipment are not required to replace; and the special processing device has high processing accuracy and yield, adopts the simple and convenient process, and is beneficial for implementing high-efficiency automatic production and also for saving labor cost.

The invention discloses a device and a method for removing methanol from a methyl tert-butyl ether cracking product. The MTBE cracking product and absorption liquid undergo cross flow-counterflow contact in a multistage airflow shear cross-flow bed; under the shear action of high-speed rotating filler, cracked gas and the absorption liquid are dispersed, coalesced and redispersed for multiple times, so that multistage absorption is realized; cracking gas is introduced to a gas inlet in the side bottom of a multistage airflow shear cross flow bed; a gas outlet in the top of the multistage airflow shear cross flow bed is connected with a purified gas section; the absorption liquid is introduced to a liquid inlet in the side top of the multistage airflow shear cross flow bed; a liquid outletin the bottom of the multistage airflow shear cross flow bed is used for draining the absorption liquid; the liquid inlet is connected with a pump; the liquid outlet of the multistage airflow shear cross flow bed is connected with a liquid-rich tank; the multistage airflow shear cross flow bed comprises a liquid distributor, a liquid collecting and redistributing device, a rotor, a stator, a driving device and a casing. According to the equipment, the gas and the absorption liquid generally make counterflow contact, so that a gas-liquid mass transfer propulsion force is greater, the purification degree of the cracking gas is improved, and the concentration of methanol in the rich solution and the utilization rate of the absorption liquid are improved.

The invention relates to biodiesel as a novel power source used by a gas engine using diesel oil as power and a preparation technology thereof. The preparation technology comprises the following steps: using oil plant fruits containing reproducible oil plants, animal oil and fat, oil palm, Chinese pistachio, and the like, oil water plants , such as engineered microalgae, and the like, 50-90 percent of waste cooking oil and 10-40 percent of methanol as raw materials; using 5-30 percent of solid organic acid as catalyst, assisting dissolving by 1-30 percent of surface active agent (ratio:), and continuously mixing the mixture for 20-120 min under the normal atmosphere condition with the temperature between 20 DEG C and 100 DEG C for reacting so as to prepare the biodiesel. The invention has the advantages of gentle reaction condition, short reaction time and high esterification and ester transformation ratio; the product can replace excellent mine diesel by 100 percent and can be mixed with the mine diesel according to any proportion for use.

The invention provides a borate silicate aluminate glass bead. The borate silicate aluminate glass bead comprises, by mass, 50 to 58% of silica, 3 to 8% of boron oxide, 5 to 10% of alumina, 12 to 18% of sodium oxide, 8 to 15% of calcium oxide, 0 to 1.5% of magnesium oxide. The invention also provides a preparation method of the borate silicate aluminate glass bead. The preparation method comprises a step of raw material preparation, wherein a raw material comprises, by weight, 2.6 to 2.7 parts of carbon black, 0.7 to 0.9 part of boric acid, 2 to 2.3 parts of a calcium salt, 1.6 to 1.8 parts of sodium nitrate, 2.5 to 2.8 parts of aluminium nitrate, 0.2 to 0.4 part of magnesium nitrate, and 0 to 0.1 part of alumina silicate. The preparation method possesses following advantages: the finished product yield is high, water flotation is not needed, flotation ratio is 99% or higher, the compressive strength is high, quality is stable, and the density and the compressive strength are high in uniformity.

The invention discloses a preparation method of submicron hexanitrohexaazaisowurtzitane in batch. The method comprises: adding a surfactant into water to prepare a surfactant solution, grading by using grinding ball mediums with different diameters, adding CL-20, the surfactant solution and the grinding ball mediums into grinding tanks, cooling, symmetrically putting the grinding tanks, fixing the grinding tanks onto a planet grinder for planet grinding, separating a grinded explosive suspension and the grinding ball mediums, performing solid-liquid separation for the explosive suspension, and drying to obtain the submicron CL-20. According to the preparation method provided by the invention, the CL-20 explosive, the surfactant solvent and the grinding ball mediums with different diameters are graded, and the planet grinder is used for repeated grinding. The prepared epsilon-CL-20 is uniform in powder particle size, smooth in particle surface, and regulatable in average particle size; during a preparation process, no organic solvent impurities are introduced, a post treatment is reduced , a total grinding time is 1-10 hours, and a grinding time is short. The method is suitable for production in batch.

The invention relates to the field of processing of foods and beverages, in particular to a low-tannin fermented rosa roxbunghii beverage and a preparation method thereof. The low-tannin fermented rosa roxbunghii beverage provided by the invention comprises the following component in percentage of rosa roxbunghii original juice of which the addition amount is 30-50%, cane sugar of which the addition amount is 5-10%, protein powder of which the addition amount is 0.05-0.3%, kefir microbial populations of which the inoculum concentration is 0.005-0.02%, calcium carbonate of which the addition amount is 6% and the balance of water. The low-tannin fermented rosa roxbunghii beverage disclosed by the invention has the characteristics of being mellow and brisk in mouth feel, moderate in sour andsweet degree and good in organoleptic quality; by the method, the tannin content in rosa roxbunghii is effectively reduced, and the problems that tannin is difficult to remove and influences the mouthfeel of made products during beverage processing are effectively solved; and besides, the tannin is utilized as a microbial carbon source, along with prolonging of fermentation, the tannin content iscontinuously reduced, and the tannin content is reduced by 3-10% compared with that of an ordinary strain fermented rosa roxbunghii beverage.