140results about How to "Wide range of industrial applications" patented technology

The invention relates to an ammonia process flue gas treatment method for acidic tail gas. The method includes the steps of: 1) controlling the sulfur dioxide concentration of tail gas entering an absorption tower at a level of less than or equal to 30000mg/Nm<3>; 2) arranging process water in an absorption tower entrance flue or in the absorption tower or cooperating with a ammonium sulphate solution to perform spray cooling; 3) disposing an oxidation section in the absorption tower, setting an oxidation distributor at the oxidation section to achieve oxidation of a desulfurized absorption liquid; 4) arranging an absorption section in the absorption tower, utilizing an absorption liquid distributor in the absorption section to realize desulfurization spray absorption by an ammonia-containing absorption liquid, which is fed through an ammonia storage groove; 5) arranging a water washing layer at an absorption section upper part in the absorption tower, washing the absorption liquid in the tail gas by the water washing layer and reducing the absorption liquid escape; and 6) setting a demister at the upper part of the water washing layer in the absorption tower to control the mist drop content in the purified tail gas. Employment of the Claus sulfur recovery and ammonia process desulfurization integrated desulfurization technology in the coal chemical industry can reduce the investment cost of after-treatment, the process can be simpler, and factory environmental protection treatment can form an intensive advantage.

The invention relates to a nano-fiber composite ultrafiltration membrane preparation method based on an electrostatic spinning technology. According to the invention, a high-molecular polymer used for spinning is dissolved in a solvent, such that a spinning solution A with a concentration of 10-30wt% is obtained; a PVA spinning solution with a mass percentage of 7-10% is prepared; a PVA water solution with a mass concentration of 1-6% is prepared; through crosslinking treatment, a PVA coating liquid is obtained; the spinning solution A and the PVA spinning solution is subjected to composite electrostatic spinning, such that a nano-fiber composite membrane is obtained; the membrane is processed under water vapor, and is soaked with a crosslinking bath; the PVA coating liquid is used for coating by using a spin coater; a sealed reaction is carried out under room temperature; the membrane is soaked by using deionized water, and is suspended and air-dried, such that the ultrafiltration membrane is obtained. The surface of the prepared nano-fiber composite ultrafiltration membrane comprises large amounts of hydrophilic groups and active groups. The membrane has good mechanical performances and anti-pollution performances, and is especially suitable for ultrafiltration under ultra-low pressure or even no power. The membrane has high flux and retention rate under low pressure.

A detection system and method thereof are provided. The detection method comprises the following steps: decompiling a first application package file to generate a plurality of first decompiled files, and the first decompiled files comprising a first decompiled code; comparing the first decompiled code with a second decompiled code of a second application package file to analyze a different code segment between the first decompiled code and the second decompiled code; classifying a changed code type corresponding to the different code segment according to a function call flow of the first decompiled code; loading a correspondence table and selecting at least one detection rule corresponding to the changed code type in the correspondence table; confirming a detection region of the first decompiled code according to the at least one detection rule; and detecting the detection region to generate a security detection result.

The invention discloses a method for ultra-filtration membrane strengthened ultra-filtration treatment of phenol-containing sewage. The method comprises: first adding cetylpyridinium chloride which is a cationic surfactant, and sodium carbonate into the phenol-containing sewage, stirring uniformly and standing for reaction where cetylpyridinium chloride monomer molecules produce micelles by self-assembly and then solubilize the phenol contained in the water; pumping the water to an ultra-filtration component for filtration where the cetylpyridinium chloride micelles with being solubilized the phenol contained in the water are intercepted by the ultra-filtration membrane so that the phenol contained in the water is removed. The phenol concentration in the sewage is 5mg/L-200mg/L; the addition of cetylpyridinium chloride is 20*10<-3>mol/L-30*10<-3>mol/L; the addition of sodium carbonate is 1*10<-3>mol/L-20*10<-3>mol/L; the weight of molecules intercepted by the ultra-filtration membrane is 6000-10000Dalton; the membrane operation pressure is 0.05MPa-0.20MPa. The method is carried out in an intermittent type, and the standing reaction time is 0.5-10h. In treating the phenol-containing sewage, the invention has excellent phenol removal performance, low energy consumption, simple operation, low surfactant consumption and low cost. In addition, the surfactant and the phenol can be recycled.

A molding system for directly gas-cooling a molding object includes a cold air provider, two molding parts, a plurality of outlets, at least one air-providing molding part, at least one air passage, and a controller. The two molding parts are closed detachably to co-define a forming cavity therebetween. The outlets are arranged on the air-providing molding part. The air passage is connected to the cold air provider and the outlets. The controller drives the cold air provider to provide cold air to a molding object in the forming cavity directly when the two molding parts are separating.

The invention relates to a manganese dioxide nanowire array electrode on a titanium substrate and a preparation method thereof. The electrode is formed by manganese dioxide nanowire arrays on the titanium substrate, the diameter of a single manganese dioxide nanowire is 50-500 nanometers, and the manganese dioxide nanowires are vertically, uniformly and tensely distributed on the surface of titanium and are in an array form. The preparation method of the electrode comprises the following steps of fully mixing potassium permanganate, deionized water, acetone and hydrochloric acid solution to obtain mixed solution; arranging a titanium sheet in the mixed solution, arranging the mixed solution into a reactor, sealing the reactor, heating the reactor to 200 DEG C, and keeping the temperature for nine hours to ten hours; taking the titanium sheet out after the mixed solution is naturally cooled down, and obtaining the manganese dioxide nanowire array electrode on the titanium substrate. The manganese dioxide nanowire array electrode is applied to a lithium ion battery to show good circulating performance and rate capability and applied to a supercapacitor to show excellent electrochemical performance.

The invention discloses a slurry bed hydrogenation catalyst, and preparation, a design method and a use thereof; the catalyst includes the following components: a catalyst main body, molybdenum-containing red mud or hematite powder, a carrier and activated carbon; the molar ratio of a metal center Fe to the other metal center Mo in the red mud or hematite is 1:150 to 1:200, the mass ratio of the catalyst main body to activated carbon is 0.2:1 to 1.1:1, and the activated carbon has the pore size of 1-100 nm. The preparation method includes the following steps: firstly, preparing the molybdenum-containing red mud or hematite powder, then adding activated carbon with the particle size of 50-150 [mu]m into the molybdenum-containing red mud or hematite powder, mixing evenly, and thus obtaining the slurry bed hydrogenation catalyst. The slurry bed hydrogenation catalyst has the advantages of low cost, simple preparation method, and easy storage and transportation, can be discarded and has no need of recycling, is applied to heavy oil slurry bed hydrogenation, coal direct liquefaction and oil coal mixing, and achieves quite high residual oil/oil coal conversion rate and liquid yield.

To provide an effective adsorption for separation of aromatics from hydrocarbon containing much aromatic contaminants and capable of desulfurization and energy conservation or the like by contacting serially connected beds of molecular sieves. This adsorption process includes following steps; a hydrocarbon having 45-300 deg.C boiling point and including 0.5-15 wt.% aromatic carbon (Z) is adsorbed on serially connected beds A, B, C, D, E, F and G of molecular sieves for the compound Z (e.g. silicagel, zeolite or alumina) and purged with a controlled cold desorbing liquid so as to recover paraffin/isoparaffin/ naphthene-based hydrocarbons and the adsorbed compound Z is desorbed with a heated desorbing liquid by the aid of thermal swing temperature.

The invention specifically relates to a method for extracting NaSCN from thiocyanate-containing wastewater solution. The technical scheme comprises the following steps: adsorbing the thiocyanate-containing wastewater solution by active carbon and filtering to obtain primary filtrate; adding elution agent into the primary filtrate under normal pressure at 10 to 50 DEG C, wherein the volume of the added elution agent is 1 to 8 times of that of the primary volume, and the addition seed of the elution agent is 50 to 600 mL/h; stirring at a speed of 100 to 600 r/min during the addition of the elution agent; after adding the elution agent, standing for 15 to 30 min and filtering to obtain secondary filtrate; and evaporating and crystallizing the secondary filtrate to obtain the NaSCN crystal. The method has the characteristics of low cost, environmental protection and the like, and the purity of extracted NaSCN reaches 87 to 96%.

The invention provides highly dispersible black colorant rubber. The highly dispersible black colorant rubber comprises, by mass, 30% of butadiene-styrene rubber, 18.5% of calcium carbonate, 8% of softening oil, 42% of carbon black, 1% of an anti-aging agent and 0.5% of a slipping agent. The invention also provides a preparation method of the highly dispersible black colorant rubber. The preparation method can ensure that the carbon black and auxiliary agents in the rubber can be uniformly supported by the carrier rubber, keep good color development physical properties and a dispersion degree of the black rubber, and satisfy colorant rubber plasticity demands in later processes such as normal rolling and extrusion.

The invention discloses Q&P steel with a gradient structure. The Q&P steel comprises, by weight percent, 0.14-0.29% of C, 1.1-2.8% of Si, 1.8-3.0% of Mn, 0.5-1.9% of Cr, 1.5-3.1% of Al, smaller than or equal to 0.01% of S, smaller than 0.01% of P and the balance Fe. A manufacturing method of the Q&P steel includes the steps of austenitizing, carburizing, quenching, tempered carbon distributing and quenching. According to the Q&P steel and the manufacturing of the Q&P steel, technology stability and organization gradient can be ensured in production of large-size products, strength of the steel is improved, good toughness of the steel is also ensured, and low alloying cost is low.

The invention relates to a method for extracting wedelia lactone by using microwave-assisted technology, which comprises the following steps of: crushing eclipta grass, adding an organic extractant, extracting with microwave for 2-3 times, filtering the extract, combining filtrate, recovering organic extractant with a rotary evaporator by reduced pressure evaporation to obtain dark green extract, adding 2-5 times the volume of water, heating in a microwave reator of 70-80 DEG C for a period of time, filtering as soon as possible, adding petroleum ether to the filtrate to remove fat-soluble ingredients such as chlorophyll, adding ethyl acetate to extract, adding anhydrous sodium sulfate to remove water, concentrating under reduced pressure to obtain yellow-green extract, taking certain amount of extract on the silica gel column, using ethyl acetate-methanol with polarity ascending for the gradient elution, obtaining off-white solid when the volume ratio of ethyl acetate-methanol is appropriate, and recrystallizing with methanol for 2-4 times to obtain the product. The microwave extracting technology can shorten the time, reduce the solvent dosage and energy consumption, and also can improve the yield and purity of the extract. The technology can meet the requirement of the green environmental protection and has significance of industrialization.

The present invention relates to a dual fuel injection valve having a pumping nozzle for a diesel engine and a gas engine, and an objective of the present invention is to provide a fuel injection valve in which, by using two kinds of fuel entering into a fuel valve, a warming up and injection of pilot fuel may be performed in an initial injection and injection of main fuel may be performed subsequently such that subsequent dual fuel is used for combustion, thereby increasing fuel injection performance.

In a fuel injection valve for a diesel engine or a gas engine for injecting fuel to a cylinder, provided is a dual fuel injection valve having a pumping nozzle for the diesel engine and the gas engine including: the dual fuel injection valve including a fuel valve block (110) in which a fuel passage to which first and secondary fuel is introduced through a high pressure pipe is formed inside thereof, the first and secondary fuel being the same fuel system or different fuel systems; a cylinder/needle valve (506) which moves upward by a pressure difference of the secondary fuel introduced through the fuel passage formed in the fuel valve block (110) to inject the primary fuel to a pilot nozzle hole; and a main needle valve (143) which, after injecting the primary fuel by pressing the cylinder/needle valve (506), moves upward by the pressure difference of the secondary fuel introduced through a connected fuel passage to inject the primary fuel to a main nozzle hole (161).

An analog to digital converter is disclosed herein. The analog to digital converter includes a bit conversion module and a control module. The bit conversion module is configured to generate a quantization output in accordance with an input signal. The control module is configured to control the bit conversion module, so as to make the bit conversion module operate in one of a sigma delta mode and a successive approximation mode.

The invention discloses a novel asymmetric phase-transfer catalyst pentaazabicyclo and a preparation method thereof. A unique bran-new synthetic route is adopted: different chiral amines, which are used as the initial raw material, react with different halogenated hydrocarbons to synthesize the catalyst pentaazabicyclo with different structural formulae. The catalyst has the advantages of low consumption and high efficiency in the synthetic reaction, can easily change the structure, and thus, is suitable for various different substrates and wide asymmetric reactions.

The invention discloses a method for preparing an organic-inorganic hybrid total heat exchange membrane through a sol-gel method. The method includes the steps that an inorganic matter precursor and an organic high polymer are evenly mixed in a co-solvent, solation and gelation are conducted, and the organic-inorganic hybrid membrane is prepared. In a polymer system, nanoscale particles are obtained after hydrolytic polycondensation and evenly scattered in the polymer solution system. The preparation process is low in synthesis temperature, preparation cost is low, the pore diameter distribution is even, the agglomeration behavior of inorganic nano-particles can be effectively restrained, dispersity of the inorganic nano-particles in a polymer matrix is promoted, interaction between an organic phase and an inorganic phase is improved, the stability of the inorganic nano-particles in the polymer matrix is improved, and multiple properties such as moisture penetrability, gas blocking, pollution resistance and bacterium resistance of the separation membrane can be remarkably improved.

The invention discloses a process for making RDF from domestic garbage and high-temperature pyrolysis gasification treatment. The process comprises the following procedures of domestic garbage, bag breaking, primary magnetic separation, drum screening, primary breaking, drying, secondary magnetic separation, aluminum magnetic separation, air separation, fine breaking, additives adding, stirring, RDF molding, cooling, screening, gasification, dust removal, cooling, oil removal and dechlorination and desulfurization. Metal, glass, high-value plastic, sand, stone, soil and the like in household waste are completely separated, and the effects of resource recycling and sustainable economic development are achieved.