42results about How to "Add processing steps" patented technology

The invention discloses a harmless and resource utilization method of steel industry chromium-containing wastewater. The harmless and resource utilization method of the steel industry chromium-containing wastewater comprises the following steps: 1) adding steel rolling system acid-washing waste liquid into the chromium-containing wastewater, reducing Cr<6+> in the chromium-containing wastewater into Cr<3+> by utilizing the acidic environment provided by the acid-washing waste liquid and the Fe<2+> therein, and oxidizing the Fe<2+> into Fe<3+>; 2) adding alkali into the reduced wastewater, neutralizing, enabling the Cr<3+> to generate Cr(OH)3 precipitate and the Fe<3+> to generate Fe(OH)3 precipitate, and performing mud and water separation to obtain sludge containing chromium and iron; 3)performing concentration treatment on the sludge containing chromium and iron to obtain homogenous slurry; and 4) feeding the homogenous slurry into a sintering system, mixing the homogenous slurry and the sintering raw materials according to a certain proportion and sintering to obtain a sintered ore finished product for ironmaking and steelmaking. By the method, up-to-standard discharge of the chromium-containing wastewater is realized and resource utilization of the chromium element in the wastewater is realized.

The invention relates to a soft-shelled turtle hatching method, which comprises the following steps of: (1) stacking fertilized soft-shelled turtle eggs layer by layer on the surface of a sand layer of a hatching tray in an incubator, wherein the thickness of the sand layer is 2 to 3 centimeters, and the water content of the sand layer is 7 to 8 percent; (2) covering a sand layer with the thickness of 2 to 3 centimeters and the water content of 7 to 8 percent on the soft-shelled turtle eggs; and (3) after the steps (1) and (2) are finished, regulating the temperature in the incubator to be 33 to 34 DEG C, keeping the relative humidity of air at 85 to 88 percent, ventilating for 1 to 2 hours at noon of every day in the hatching process, and finishing hatching of the soft-shelled turtle eggs after 43 to 45 days. The hatching method is simple and feasible; the special incubator is scientific and reasonable in design and convenient to operate; and manpower is greatly saved, the hatching cost is reduced, the survival rate of soft-shelled turtle fries is improved, and economic benefits of an enterprise are increased.

The invention discloses concrete crushing regeneration equipment, and relates to the technical field of building equipment. The concrete crushing regeneration equipment comprises a supporting frame, asupporting plate is arranged in the middle of the supporting frame, a supporting table is arranged at the top end of the supporting frame, a roller box is arranged at the top end of the supporting table, a crushing box is arranged at the top end of the roller box, a first extruding roller is arranged in the crushing box, a second extruding roller matched with the first extruding roller is arranged on the side face of the first extruding roller, and a feeding hopper is arranged at the top end of the crushing box. The concrete crushing regeneration equipment has the beneficial effects that thefirst extruding roller and the second extruding roller are utilized to crush mass concrete firstly, then a screening device is utilized to screen the crushed concrete, aggregates conforming to the specified particle size are screened out, manual crushing is omitted, using of labor is reduced, the crushing efficiency is improved, the crushed coarse aggregates are conveyed into a stirring barrel, the stirring barrel is utilized to stir and mix concrete blocks, the treatment steps of the concrete are increased, and thus the concrete treatment equipment is more perfect.

A method for extracting cholesterol from lanosterol by supercritical CO2 is carried out by putting lanosterol and laminating agent into extractor, delivering CO2 into extractor by compressing pump, adjusting CO2 extractor pressure and temperature, controlling CO2 flow speed, extracting to obtain CO2 with solute, decompressing CO2 with solute, separating to obtain cholesterol and lanosterol, dissolving for cholesterol by solvent, lowering temperature and crystallizing to obtain high-content final product. It's simple and inodorous, has better purity and light color.

The invention belongs to the field of microbiological detection, and relates to a quantitative detection method of live bacteria based on an FISH technique. The method comprises the following steps: adding a PMA nucleic acid dye for pre-treating before an implementation process of a conventional fluorescence in-situ hybridization method; carrying out covalent binding of nucleic acid in dead bacterium cells and PMA in the PMA treatment process, and sending out orange fluorescence under blue light excitation of a fluorescence microscope, so as to know that the bacteria in the orange fluorescence are dead bacteria in an original system; combining rRNA in live bacterium cells with a fluorescence probe in a hybridization step, and sending out green fluorescence under blue light excitation of the fluorescence microscope by the fluorescence probe, so as to know that the bacteria in the green fluorescence are the live bacteria in the original system. Through improvement of a fluorescent in-situ hybridization technique, the step of adding PMA dye for treating is increased, and effective distinguishing of the dead bacteria and the live bacteria in a sample system is achieved; and a set of method capable of rapidly and quantitatively detecting the live bacteria in the sample is built. The method has relatively high universality in bacterial quantization.

The invention provides certificate information processing and verification methods, a processing terminal, and a verification server. The certificate information processing method includes the steps of acquiring an encryption key; reading certificate information data, performing the business transaction to obtain business data by means of the certificate information data, and performing digital signature on the certificate information data with the encryption key to obtain encryption data; and transmitting the business data and the encryption data together to the back end. The certificate information verification method includes the steps of receiving relevant business data and encryption data; decrypting the encryption data with a decryption key to obtain decryption data; and checking the encryption data with the business data, if the data is consistent, the business transaction corresponding to the business data is successful, if not, the business transaction is failed. The certificate information processing and verification methods can guarantee the authenticity and the integrity of certificate information when the business transaction is carried out based on the certificate information, prevent software stimulation operation, and perfect the information management function.

The invention belongs to the field of body repairing, in particular relates to a repairing method of a body cave, in particular to the devices of a diesel engine, an engine, and the like which work under a high-temperature condition. The invention solves the technical problem of providing a novel method for repairing the body cave to increase the service life of the device. The repairing method comprises the following steps of: A, cleaning the surface of a body cave part; B, coating an industrial repairing agent on the body cave part; C, initially solidifying: maintaining 2-3 hours at the temperature condition of 25-30 DEG C; D, finally solidifying: heating the repaired part of the body to the temperature of 70-100 DEG C and maintaining at least 24 hours at the temperature of 70-100 DEG C; and E, processing: mechanically processing the completely-solidified surface to be repaired according to the use requirement of the body. The repairing method can ensure the body of the diesel engine not to be repaired again in an un-wheeling repair period, and the service life of the diesel engine body is prolonged to 8-10 years from 5-6 years.

The invention discloses a polyester resin and a preparation method and application thereof. The polyester resin has an acid value of 30 to 80 mgKOH/g, a glass transition temperature of 40 to 80 DEG C,a melt viscosity of 1000 to 10000 mPa.s at 200 DEG C, a softening point of 80 to 123 DEG C, a reactivity of 100 -300 s at 180 DEG C and a number average molecular weight of 3000-7000; and the polyester resin is prepared from polyester waste, polyol, polybasic acid, and a blocking agent. The above-mentioned properties of the polyester resin have a wide range of variations, and thus have higher applicability; at the same time, the polyester resin is prepared from the polyester waste, so that the preparation conditions are mild, no by-products are formed during the preparation, and the pure polyester resin is completely prepared through one-step reaction; and powder coating prepared from the polyester resin has better surface appearance, excellent mechanical properties and adhesion, chemicalresistance, salt resistance and high boiling performance, and is suitable for various indoor coating fields.

The invention discloses a method for determining six inorganic negative ions in a tobacco gene editing material. An apparatus is used, which comprises a sample extraction bottle, an outer cannula (1),an inner cannula (2), a liquid-guiding pipe (4), and a sieve plate (3) which can be one or more and positioned in a lower opening of the inner cannula (2); The method comprises the following steps: 1) tobacco leaf extraction; 2) filtering and transferring; 3) analysis for making a chromatogram; 4) acquisition of a peak area of the standard chromatogram to obtain the inorganic negative ions of thetobacco gene editing material. The determination method of the present invention is characterized in that an on-line solid phase extraction purifying column is added before first usage of an ion chromatographic column, the processing is simple and convenient, the effect is good, the determination method has the advantages of accurate quantification, good repeatability, and low detecting limit, and can effectively realize the high flux analysis determination of the inorganic negative ions in tobacco gene editing material.

The invention discloses a work function adjustable WCN thin film deposition method which comprises the following steps: firstly, heating a tungsten precursor to 80-150 DEG C, and preheating a precursor conveying pipeline and an ALD cavity; forming a monatomic layer WN thin film through NH3 plasma and tungsten precursor reaction deposition, and repeating X times to form X layers of WN thin films; forming a monatomic layer WC thin film through reaction deposition of H2 plasma and a tungsten precursor, and repeating the step Y times to form a Y-layer WC thin film; and repeating the steps for Z times until the WCN thin film with the expected thickness is obtained. According to the WCN thin film prepared through the method of alternately depositing the WC thin film and the WN thin film, atom combination between WCN can be achieved, the existing mode that the proportion of C to N in the WCN is adjusted by adjusting the deposition technological parameters of the single WCN thin film is replaced, the content of C and N can be accurately adjusted, and therefore the work function can be adjusted.

The invention discloses a thin film planarization method, an array substrate, a manufacturing method of the array substrate and a display device, and relates to the field of display. The technical problem that in existing dry etching, damage to the planeness of the surfaces of other film layers below a film layer which is etched is large can be solved, and accordingly the displaying performance of a liquid crystal displayer is improved. The manufacturing method of the array substrate comprises the steps of conducting pattern etching on a non-metal layer by the adoption of the dry etching, and after conducting pattern etching on the non-metal layer by the adoption of the dry etching, conducting surface planarization processing on a first film layer to enable the first film layer with a rough surface caused by the dry etching to recover to planeness. The first film layer is located below the non-metal layer.

The invention relates to the technical field of electronics, in particular to copper foil removing equipment for UWB positioning base station substrate production. The technical problem is that a copper foil on a substrate has impurity particles during pressing, after the copper foil is etched and removed, the impurity particles fall into blind holes of the substrate, and additional processing steps need to be added for processing, so that the production cost is increased. According to the technical scheme, the copper foil removing equipment for UWB positioning base station substrate production comprises a bottom frame, a collecting box and the like; a collecting box is connected to the left portion of the bottom frame. When the device is used, residual glue residues in the blind holes of the substrate are cleaned through the air jet, the damage to the substrate is avoided, meanwhile, the adverse effect of the glue residues on etching is avoided, only the lower surface of the substrate is etched through overturning each time, the upper surface is sealed and protected, and the production efficiency is improved. Impurity particles are prevented from falling into the blind holes of the substrate after the copper foil is etched and removed when the copper foil is pressed, and additional processing steps are avoided.

The invention provides a processing method capable of preventing electrochemical corrosion of through-hole metals. The processing method at least comprises the following steps: firstly, providing a metal interconnection structure including a first metal layer, an insulating layer which is positioned on the first metal layer and is provided with a through hole and a second metal layer which is positioned on the insulating layer; filling the through hole with a third metal layer communicated with the first metal layer and the second metal layer; then, putting the metal interconnection structure into a reaction cavity, introducing mixed gas of N2 and H2O and performing ionization on the mixed gas of N2 and H2O to dissociate H2O to form hydrogen atoms, wherein the hydrogen atoms capture positive charge in the second metal layer to prevent the third metal layer in the through hole from being corroded by performing electrochemical reaction on the positive charge; the second metal layer is made of aluminum-copper alloy; the third metal layer is made of tungsten.

The invention discloses a preparation method of a water-resistant easily-degradable plastic toy. The preparation method comprises the following steps: S1, preparing raw materials for producing the plastic toy; s2, the raw materials are fed into an extruder to be granulated, and plastic particles are prepared; s3, adding toner into the plastic particles for coloring; s4, baking and drying the colored plastic particles; s5, the dried plastic particles are added into a toy injection molding machine mold for injection molding, and a toy primary product is obtained; s6, the primary toy product is subjected to trimming treatment; s7, performing surface decoration on the toy primary product to obtain a toy finished product; and step S8, performing disinfection treatment on the toy finished product. Compared with the prior art, the full-biodegradation agent is adopted, degradation is thorough, the plasticizer is composed of glycerin and epoxy chloropropane, water resistance is higher, the inorganic filler improves the strength and antibacterial property of toys, the trimming and sterilizing lamp treatment steps are added, and the safety coefficient and sanitary coefficient of the toys are increased.

The invention discloses an updating and management system based on learning archives, which comprises a school education module, a student module, a social education module, an authorization module, a touring module, a learning archive input module, a social information input module, a school intranet, a teacher end, a common push module, an abnormal module and a reinforced push module. The school education module is used for summarizing, sorting, deploying, adjusting and planning all education information and education activities of a school; the student module is used for the students to inquire own learning archives; and the social education module is used for summarizing, sorting, deploying, adjusting and planning all education information and education activities of the unit. According to the updating and management system based on the learning archives, the input module is connected with the intranet, so that the archive and the school network can be updated synchronously, the management personnel or teachers are prevented from forgetting, the workload is reduced, and the information accuracy is improved.