19 results about "National standard" patented technology

The invention discloses a remediation method for cadmium-contaminated soil, and belongs to the field of soil remediation. In the remediation method, wood vinegar and biochar are prepared from rice straw and/or oilseed rape straw; paddy rice is planted in the cadmium-contaminated soil from May to October of each year firstly, and biochar is applied before paddy rice planting, so that paddy rice conforming to the national standard can be prepared in the cadmium-contaminated soil (to be specific, the cadmium content conforms to the national standard); oilseed rape is planted in the cadmium-contaminated soil from the time after the harvest of the paddy rice to May of next year, and wood vinegar is applied in a specific period to remove cadmium in the cadmium-contaminated soil safely and effectively, so that cadmium in the soil is effectively removed. Moreover, the method effectively utilizes the whole year, thereby guaranteeing the harvest of cereal crops while realizing the remediation of contaminated soil.

The invention relates to a novel process for precision forging of a disc steering knuckle, which comprises sawing, heating, blanking, forging, trimming, aligning and heat treating, wherein a forging procedure refers to the precision forging carried out by a hot die forging press. The precision forging comprises the following steps of: upsetting and descaling, semi-closed type extruding and preforming of a rod part and a head part, preforging and forming of a head part and a rod part, and finish forging and finishing. The process has the advantages that the process for the precision forging of the disc steering knuckle is advanced, the precision of a product can conform to the precision rank specified in national standard, the quality of a forge piece is stable, and the production efficiency is high.

The invention discloses a method for preparing pharmaceutical-grade microcrystalline cellulose from cotton linter. The cotton linter is cooked, degreased, bleached, purified, hydrolyzed, filtered, washed, dried and pulverized to obtain the pharmaceutical-grade microcrystalline cellulose, wherein, in the procedure of cooking and degreasing, pulping is performed by the cotton linter ethanol method; and a cotton linter ethanol pulp is prepared according to the volume ratio as 1:4-10 of the absolutely dry mass of the cotton linter to ethanol with 55% of mass fraction, and then the pulp is cooked at the temperature of 190-195 DEG C for heat preservation for 30-90 minutes. In the procedure of bleaching and purifying, an EAPP process is adopted, wherein an E section is the alkali treatment section by adopting NaOH; an A section is the acid treatment section by adopting sulfuric acid; and a P section is the H2O2 bleaching section. For the microcrystalline cellulose prepared by the method, the ash content is 0.0375%, the water content is 4.5%, the degree of crystallization is 63.96% and the granularity is 22.72mu m, and the indexes reach the national standard of the pharmaceutical-grade microcrystalline cellulose.

The invention relates to an ultra-thin PE (polyethylene) film for a packaging bag. The ultra-thin PE film comprises components in parts by mass as follows: 20-40 parts of EVA (ethylene vinyl acetate) FL0014, 10-30 parts of MLLDPE (metallocene linear low-density polyethylene) 1018 FA, 30-40 parts of linear HDPE (linear high-density polyethylene) 2045Q, 20-35 parts of HDPE LD100AC, 0.5-1.0 part of a slipping agent and 0.2-0.8 parts of an antioxidant. The ultra-thin PE film has the advantages that linear grains in a production process of the film are eliminated, the film has better heat sealing property and ageing resistance, the tensile strength is higher than the national standard by 20%, and the shelf life of the film is prolonged by 6-8 months than the conventional products.

The invention provides an edible-oil processing technology for decreasing the content of trans-fatty acid and removing a plasticizer. The edible-oil processing technology includes the steps of bleaching oil filtering, deacidifying and deodorizing, primary plastic removing, secondary plastic removing, fatty acid and plasticizer collecting, product oil cooling and filtering and the like, the plasticizer index of the produced product oil is lower than the national standard, wherein DBP is smaller than or equal to 0.04 ppm, DEHP is smaller than or equal to 0.4 ppm, and the rising value of the trans-fatty acid is smaller than 0.5%. By means of the processing technology, the plasticizer is removed; meanwhile, forming of the trans-fatty acid is inhibited, and the content of the trans-fatty acid is decreased. The plasticizer in grease is effectively removed through the pure physical technology, and the problem that plasticizers of product oil in domestic grease processing plants is seriously exceeded the standard at present is solved.

The invention relates to a culture waste water energy self circulation disposal system and a method thereof. The system comprises a filter grid, a grit basin, a solid and liquid separation pool, a large-size methane anaerobic tank, an ammonia nitrogen air stripping tower, a dual section A-O reaction pool, a sludge pool, a methane purifier and a methane power generator; the filter grid, the grit basin, the solid and liquid separation pool, the large-size methane anaerobic tank, the ammonia nitrogen air stripping tower and the dual section A-O reaction pool are connected in sequence; the dual section A-O reaction pool is connected with the sludge pool; the large-size methane anaerobic pool is connected with the methane purifier connected with the methane power generator. The disposal system and method have the following advantages that 1, harmful pollutants such as COD and ammonia nitrogen in culture waste water can be effectively removed, so the emitted waste water achieves a national standard, and environment pollution is relieved; 2, a disposal process realizes energy self circulation, and a generated fertilizer can be used for agricultural planting and cost reduction.

The invention relates to the field of a production process of an aluminium alloy section, in particular to a production process of a novel heat insulation cast electrophoresis aluminium section structure. The production process comprises the following steps: S1, squeezing an end face section, i.e. squeezing a section and enabling the obtained section to be provided with a glue injection groove sealed by a sealing section; S2, carrying out surface processing, i.e. carrying out comprehensive electrophoretic coating on the outer surface of the section with the sealed glue injection groove in the step S1; S3, carrying out section tearing, i.e. tearing off the sealing section which seals the glue injection groove by a fixture such as a plier so as to obtain the glue injection groove of which the inner wall is not provided with an electrophoretic coating layer; S4, carrying out section glue injection, i.e. injecting glue into the glue injection groove of which the inner wall is not provided with the electrophoretic coating layer. Adoption of the process disclosed by the invention avoids the problems of both poor chemical adhesion and physical adhesion between a film forming resin coating which is of a nonpolar structure and polyurethane thermal insulation glue , enables the glue injected electrophoresis section adopting the structural design to completely accord with each detection requirement of the national standard and provides powerful guarantee for competition of the aluminium alloy heat insulation section coated with the electrophoretic coating in the aluminium alloy market.

The invention relates to a purifying agent for bleaching and dyeing sewage, comprising ferrous sulfate, acid water, acid mud, aluminum sulfate, polypropylene milling amine and calcium hydroxide; wherein, the weight account of various materials are: ferrous sulfate 50 to 70, acid water 2 to 10, acid mud 2 to 10, aluminum sulfate 5 to 20, polypropylene milling amine 0.5 to 1.5 and calcium hydroxide 10 to 30. The invention has the advantages of low cost, 0.30 RMB per cubic metre of the sewage, meeting the national standards of the sewage treatment, recycling the disposed water, and saving water resource .

The invention discloses a Jiaxian Zizyphus jujuba Mill fermentation primary pulp wine brewing method, and belongs to the technical of agricultural product processing. The Jiaxian Zizyphus jujuba Mill fermentation primary pulp wine brewing method comprises following steps: full saccharified matured Jiaxian Zizyphus jujuba Mill. are selected and washed; the Jiaxian Zizyphus jujuba Mill., filtered clear water, white sugar, and yeast powder are weighed at a certain ratio; fermentation is carried out; distillation is carried out so as to obtain primary pulp wine; the obtained primary pulp wine is subjected to secondary distillation so as to obtain the Jiaxian Zizyphus jujuba Mill fermentation primary pulp wine; the Jiaxian Zizyphus jujuba Mill fermentation primary pulp wine is stored in wine tanks for cellaring; and after cellaring, the Jiaxian Zizyphus jujuba Mill fermentation primary pulp wine is subjected to detection and analysis, and is blended at a certain ratio based on mouthfeel, flavor, and content ratio detected by reviewers so as to obtain the Jiaxian Zizyphus jujuba Mill primary pulp wine capable of reaching national standards. The flavor of the Jiaxian Zizyphus jujuba Mill primary pulp wine is unique; mouthfeel is mellow; nutrients are abundant; quality is improved preferably; economic income of farmers is increased effectively; and healthy development of Zizyphus jujuba Mill production industry is promoted.

The invention discloses a safety window for an elevator top beam. The safety window slides in a sliding groove of a slide rail to realize opening and closing of a window opening; a locking mechanism is used for locking the safety window on the top beam, so the window opening can be stably closed by the safety window. Compared with the rotation open type safety window provided in the background art, the push-and-pull open type safety window provided by the invention has the advantages that: occupied space is reduced, the stipulation of the national standard for the opening direction of the safety window and the requirement that the safety window cannot be beyond edges of the top beam when the safety window is open are unnecessarily considered, and interference between the safety window andparts on the top beam is also avoided.

A technical problem to be solved is providing a method for preparing biodiesel by using ansu apricot oil. The method comprises the steps of adsorption refining of ansu apricot oil as a raw material, primary esterification, settlement separation, secondary esterification, settlement separation, water washing and drying to prepare the biodiesel. The biodiesel produced by adopting the method accords with prescriptions of national standard GB/T20828, and has high quality; the method adopting the adsorption refining to refine the ansu apricot oil has the advantages of simple operation, low loss, no consumption of chemicals, and no emission of three wastes; and a two-step ester interchange reaction technology is adopted, and glycerin is separated between the two steps of the ester interchange reaction technology, so reaction raw materials and an intermediate product are deeply converted, and the product quality is good.

The invention discloses an intelligent light adjusting system and an operating method thereof. A vehicle body height and a light height required by the national standard are calculated and then inputinto a vehicle light adjusting controller and a light display instrument; compared with an existing headlamp, the headlamp is internally provided with a vehicle lamp adjusting controller and two adjusting motors; according to signals of light adjusting, the vehicle lamp adjusting controller makes the signals be transmitted to the adjusting motors, and thus the light skewing and light intensity areadjusted; a judgment unit is further needed in the vehicle lamp adjusting controller; after the light adjustment meets the requirement and a vehicle is off the line, manual misoperation occurs, pressing down to adjust 1/2 light is carried, whether the consistency or being within the error range is kept or not is judged according to the parameters of the distance, angles and the like of a lens anda decoration frame when light adjustment meets the requirement, thus whether the signals are transmitted to the adjusting motors or not is judged, next-step work is performed, and at the moment, adjusting bolts are not controlled by light adjustment and are spontaneously judged by the adjusting controller.

The invention discloses a combination which expresses a 2.5P 5.25/5 pigment and a technical method for preparing a color characterization matter by the combination. The compositions in portion by weight of the combination are: 995 to 1005 portions of CSC-B base material, 12.6 to 13.6 portions of PV23 pigment (with the content equal to 30 percent) and 2.2 to 2.3 portions of PBK7 pigment (with the content equal to 9 percent), wherein the essential component of the CSC-B base material is an acrylic acid polymer with the content of between 30 and 40 percent and the average molecular weight ranging from 150,000 to 200,000; TiO2 is selected as main white pigment with the content of between 8 and 12 percent; moreover, the contrast ratio of the base material is between 0.78 and 0.82, while the Stormer viscosity is between 90 and 100KU; and when an incident angle is equal to 85, the glossiness of the base material is between 5 and 10. The color characterization matter has ideal weathering resistance and stability and excellent proportioning reproducibility, and the raw materials and the technological process adopted by the color characterization matter accord with the requirements and the standards of environmental protection for low VOC and zero VOC; moreover, the color characterization matter has less color difference as compared with a standard value in the national standard theoretical model of the Chinese Color System as well as higher accuracy in color realization, and can be widely used in a plurality of color-related fields.

The invention discloses a combination of 10G 7/2 dye and a technical method which takes the combination to prepare a color characterization matter. The combination consists of the following components by weight proportion: 995 to 1005 portions of CSC-C base; 1.10 to 1.16 portions of PG7 with the dye content of 20 percent; 0.24 portion of PBK7 with the dye content of 9 percent; 1.02 portions of PY42 with the dye content of 60 percent; 49.0 to 51.2 portions of PW6 with the dye content of 65 percent. The main component of the CSC-C base is acrylic copolymer; the content is 35 to 45 percent; the contrast ratio of the base is 0.20 to 0.40; the Stormer viscosity is 90 to 100KU; when the incident angle is 85 degrees, the lustrousness is 5 to 10. The color characterization matter has excellent resistance to elements and stability as well as good ratio reproducibility; the materials used and the technical flow accord with the demands and standards for environment protection of low VOC and zero VOC; compared with the standard value of the national standard theoretical mode in Chinese Color System, the color difference of the color characterization matter is small; the accurate degree of realizing color is high; the color characterization matter can be widely applied in a plurality of fields related to color.

The invention relates to a sintering bonding agent for treatment of TNT red water polluted soil and a preparation method of the sintering bonding agent and belongs to the field of environmental protection. The sintering bonding agent for treatment of TNT red water polluted soil is prepared from perlite (or vermiculite), fly ash and diatomite and particularly prepared from, in percentage by mass, 55%-60% of perlite, 35%-40% of fly ash and 3%-8% of diatomite (or 50%-55% of vermiculite, 40%-45% of fly ash and 3%-8% of diatomite). The sintering bonding agent is applied to treatment of the TNT redwater polluted soil and can reduce energy consumption for sintering of sintered bricks, and sintering flue gas pollutants are discharged to the standard; particular pollutant, namely, sodium dinitrotoluene sulfonate, in soil is thoroughly decomposed and is not left in the sintered bricks; the strength of the sintered bricks meets the national standard of sintered clay bricks and is improved to some extent.