199results about How to "Realize the craft" patented technology

The invention provides a super-early-strength PCE (polycarboxylate ether) superplasticizer. The super-early-strength PCE superplasticizer is a compound shown in formula (I) and is synthesized with active macro-monomers used as raw materials, the space hindrance effect of the superplasticizer is further improved, and meanwhile, positive ions with good cement resistance are introduced in molecules, so that the superplasticizing rate, the cement resistance and the cement adaptability of the superplasticizer are increased. The superplasticizer has better tolerance and cannot have a continuous intercalation reaction with the cement. The positive ions of the super-early-strength PCE superplasticizer can inhibit expansion of the cement so as to reduce adsorption of the cement to an additive. The super-early-strength PCE superplasticizer can accelerate the hydration function of the cement and has the super-early-strength function. The super-early-strength PCE superplasticizer has super-early-strength and cement-resistant functions in common concrete.

The invention discloses a subsection-studding all-open-stoping backfilling collaborative mining method. A panel ore block is divided into primary studdings and secondary studdings; a retrusive mining working mode that the mining is carried out out at intervals, the secondary studdings are mined and then the primary studdings are stoped is adopted; when each secondary studding is stoped, a certain thickness of an ore body is reserved on the top of the ore body and is used as a temporary protection layer; a drilling drift is arranged in each primary studding and is used for drilling the top ore body and the ore body of the primary studding; meanwhile, the drilling drift has a function of filling the drift, the function of filling the drift is achieved by a goaf of a low-level secondary studding; a filling hole is formed in the wall of the drift and is used for immediately filling the goaf of each secondary studding; a large-size stope structure parameter is designed in the ore body; a production mode of mechanical mining work is adopted; a drill jumbo is used for drilling, and a scraper discharges ores, so that the safety and high-efficiency mining is realized. The subsection-studding all-open-stoping backfilling collaborative mining method disclosed by the invention is high in ore recycling rate and high in safety under the condition that a roof surrounding rock is unsteady.

The invention discloses a method for treating and recycling TBBP (tetrabromobisphenol)-A production wastewater, which comprises the main steps of physical multistage settling, flocculation and recovery, two-effect high/low-temperature evaporative desalination, advanced ozone oxidation and biochemical treatment. According to the invention, the removal of harmful hardly-degradable substances in TBBP-A wastewater is realized, the pH value of wastewater subjected to treatment is neutral, the COD (chemical oxygen demand) can be degraded to below 100 mg/L, and chlorobenzene can be completely decomposed by cutting, thereby reaching reuse and discharge standards, and achieving the purposes of the harmless and up-to-standard discharge of wastewater and the recycling of process water.

The invention discloses a smelting process for efficient slagging and desulfurization of LF aluminum killed steel. The smelting process for efficient slagging and desulfurization of the LF aluminum killed steel comprises the following steps that S1, converter steelmaking is carried out, and the end point temperature of a converter is controlled within 1610-1660 DEG C; the adding amount of scrap steel is less than or equal to 70 tons; and a strong bottom blowing mode is adopted in the later converter blowing stage to enhance molten pool stirring. According to the smelting process for efficientslagging and desulfurization of LF aluminum killed steel, converter tapping, argon blowing station and LF refining tasks are adjusted through process design to form a three-in-one refining process ofconverter tapping, argon blowing station and LF refining, LF slagging work is advanced, a rapid slagging process system is formulated, 80% or above of slagging slag materials are added in the tappingprocess through design optimization, and slag melting is promoted by fully utilizing tapping steel flow impact kinetic energy, molten steel sensible heat and ladle bottom argon blowing stirring kinetic conditions; an argon station adopts a top-bottom strong stirring proper deoxidation process, slag is rapidly formed to promote steel slag reaction, top slag reduction pre-desulfurization is realized, and LF slagging desulfurization burden is reduced; and an LF target is heated once to basically complete slagging and desulfurization tasks.

An ultra violet radiation resistant environmental protection sheathing material is mainly prepared by the following materials according to the parts by weight: 40-50 pars of polyvinyl chloride resin, 6-8 parts of trioctyl trimellitate, 4-6 parts of dioctyl sebacate, 7-9 parts of dioctylphthalate, 4-6 parts of ca-zn composite stabilizer, 1-1.5 parts of epoxidized soybean oil, 1-1.5 parts of diantimony trioxide, 1-1.5 parts of diantimony trioxide, 10-13 parts of magnesium hydrate, 8-10 parts of refined calcium carbonate, 8-10 parts of titanium dioxide, and 0.3-0.5 parts of ultraviolet absorbent. The invention technically solves the difficult point of compound formulation of the ultra violet radiation resistant white sheathing material, greatly increases the resistance to ultra violet radiation performance of the product, has strong practicability and lays the material foundation for the design and development of resistance to ultra violet radiation coaxial-cables. Based on the resistance to ultra violet radiation white polyvinyl chloride sheathing material, the resistance to ultra violet radiation environmental protection sheathing material technically solves the technical difficulties of resistance to ultra violet radiation performance, softness, UL mechanical physical property, ROHS environment requirements and the like which are difficult to be achieved completely, meets the strict requirements of the application of products on tropical and subtropical regions and has remarkable social effect.

The invention provides a polycarboxylate superplasticizer with super high early strength. The polycarboxylate superplasticizer with super high early strength is a compound shown in the formula (I) and is synthesized with an active macromonomer as the raw material, cations are introduced into molecules while the steric hindrance effect of the superplasticizer is further improved, the cations have good soil resistance, so that the water-reducing rate of the superplasticizer is increased, and the soil resistance and the cement adaptability of the superplasticizer are improved. The polycarboxylate superplasticizer has better tolerance for soil and does not have an intercalation reaction with the soil. The cations of the polycarboxylate superplasticizer with super high early strength can inhibit soil expansion, so that admixture adsorption by the soil is reduced. The polycarboxylate superplasticizer with super high early strength can accelerate hydration of cement and has the super high early strength function. The polycarboxylate superplasticizer with super high early strength has super high early strength and soil resistance functions when applied to common concrete.

The invention discloses an industrialized production method for extracting solar level polysilicon from industrial silicon. The industrialized production method adopts a combined method which comprises the steps of: preparation of aluminium silicon alloy by fusion electrolysis, smelting purification by electromagnetic induction, fractional crystallization purification and vacuum distillation purification. The production method reduces production cost which is high in the chemical method, simplifies production equipment of the physical method, leads the mass percentage purity of the prepared solar level polysilicon to be 99.9999 percent to 99.99999 percent and is more suitable for processing solar cells.

The invention discloses a ceramic manufacturing method using quartz as a matrix material and a product. Silicon dioxide is used as the matrix material; aluminum oxide, basic oxide and magnesium oxide are used as auxiliary materials; and the ceramic comprises the following materials in part by weight: 90 to 94 percent of silicon dioxide, 3 to 6 percent of aluminum oxide, 0.5 to 1.5 percent of basic oxide, 0.2 to 1 percent of magnesium oxide and the balance of impurities. The method comprises the following steps of: calcining the silicon dioxide serving as the matrix material to obtain pre-synthesized powder, wherein the beta-quartz is converted into alpha-quartz by crystal transfer in the calcining process; grinding the obtained pre-synthesized powder, wherein the granularity distribution of the ground pre-synthesized powder meets certain requirements; weighing and proportioning the ground pre-synthesized powder and auxiliary materials in a ratio, performing wet milling in a ball mill to obtain slurry, and molding the slurry to obtain a daily ceramic blank; and preparing a ceramic product by the processes of drying, glazing, temperature controlled sintering and the like.

The invention belongs to the field of chemical process risk assessment, and relates to a method for evaluating the thermal runaway risk degree of the chemical process. The method comprises the following steps: 1) collecting thermal risk data of raw materials, products and reaction processes; 2) determining a substance coefficient MF, wherein the substance coefficient MF is determined by the initial decomposition temperature Tonset and the maximum exothermic power MPD of the substance; 3) determining a reaction thermal runaway risk index RI, wherein RI is the product of the consequence severityS and the possibility P of the runaway reaction; and 4) calculating a thermal runaway risk index ITHI of the technological process, and determining a thermal runaway risk grade of the technological process according to an ITHI thermal runaway risk grading standard. Substance thermal risks and reaction runaway risks are combined. A quantitative evaluation method for the thermal runaway risk of thechemical technological process is provided.

A preparation method of an iron-coated graphene nanocomposite material comprises the following steps: (1) conducting thermal-expansion stripping on graphite oxide under a high temperature to obtain multi-layer graphene; (2) putting the multi-layer graphene and an organic solvent into a four-mouth flask, and mechanically stirring and mixing uniformly; (3) introducing pentacarbonyl iron steam into the mixed solution for thermal decomposition under a continuously stirring protection atmosphere; (4) conducting the thermal decomposition in a reflux condensation process; and (5) after the reaction,cooling to room temperature under the nitrogen protection, separating a product by a magnet, then cleaning the product by adopting an organic solvent, and drying the product under the nitrogen protection to obtain the iron-coated graphene nanocomposite material. According to the preparation method, Fe nanoparticles with a size of 20-50nm can be coated on the graphene sheet layers uniformly, the process is simple and controllable, the cost is low, and the industrial production is facilitated.

The invention belongs to the technical field of paint, and more specifically relates to a single-component middle coating can be used for wet-on-wet and dry jet wet. The single-component middle coating can be used for wet-on-wet and dry jet wet comprises, by mass, 35 to 45% of a grinding component slurry, 15 to 25% of a water-based acrylic polyol dispersion, 5 to 15% of a water-based polyurethanedispersion, 3 to 7% of an aqueous auxiliary agent, 0.5 to 1.5% of an amine neutralizer, 0.5 to 2% of ethylene glycol monobutyl ether, 0.3 to 0.7% of a wetting leveling agent, 2 to 8% of a methylated amino resin, 0.3 to 0.7% of a thickening agent, and 8 to 14% of water. The single-component middle coating can be used for wet-on-wet and dry jet wet is capable of increasing production efficiency greatly, is universal in et-on-wet and dry jet wet, is capable of saving production time and baking energy consumption greatly, and reducing research and development cost.

The invention relates to a preparation method of cold-resistant, soft and down-proof coating adhesive for textile. The preparation method is characterized by comprising the steps of stirring 80-90 parts by weight of polyurethane binder and 0.3-0.5 parts by weight of defoaming agent for 10-30min at room temperature, adding 1.5-2.0 parts by weight of associated polyurethane rheological assistant, stirring for 30-45min, adding 5-10 parts by weight of hand feeling agent, stirring for 20-30min, and filtering and discharging to obtain the product. The adhesive is applicable to pure cotton, dacron and chinlon shell fabrics.

The invention discloses a three-way shock isolation device for a satellite. The three-way shock isolation device mainly comprises a frame body, a cover plate, a bottom plate and four energy absorption material blocks, wherein the cover plate is mounted on the frame body, and is in surface contact with the frame body; the cover plate and the frame body relatively displace on the surface of the cover plate, so that a shock energy absorption action space is formed in the direction; the bottom plate is mounted on the frame body, and is not in contact with the cover plate; the four energy absorption material blocks are respectively mounted in four independent spaces formed by the frame body, the cover plate and the bottom plate, and are in tight fit with the frame body, the bottom plate and the cover plate. The three-way shock isolation device can bear objects subjected to shock isolation reliably and safely, ensures the mounting rigidity, the strength, the position precision and the like of the objects subjected to shock isolation, meanwhile, effectively isolates the shock transmission in three directions, ensures that the objects subjected to shock isolation are in a small enough shock environment reliably, and achieves the purpose that the objects subjected to shock isolation or shock sensitive parts are in on-track operation safely.

The invention relates to a preparation method of sludge-straw composite biomass activated carbon, which comprises the following steps (1) sufficiently mixing and kneading municipal sludge as a main raw material, agricultural waste as an auxiliary material and wood tar as a binder, granulating, and drying to obtain sludge-straw composite particles, (2) feeding the sludge-straw composite particles into a carbonization furnace, carbonizing and activating at the same time under an oxygen-free or oxygen-limited condition to obtain a product sludge-based biomass activated carbon and pyrolysis gas, cooling the sludge-based biomass activated carbon, and packaging the cooled sludge-based biomass activated carbon, and (3) performing dust removal and purification on the pyrolysis gas to obtain wood tar, wood vinegar and non-condensable gas, returning the non-condensable gas as fuel to the carbonization furnace, returning a part of the wood vinegar as an activating agent to be sprayed into the carbonization furnace, and recycling the wood tar as a granulation raw material. The activated carbon is prepared from the sludge and the agricultural straw, the preparation method is simple, the price is relatively low, good economic benefits and ecological benefits are achieved, and high market competitiveness and popularization value are achieved.

The invention relates to a machining process model sequential modeling method based on characteristic identification removal, which includes the steps: 1) blank preparation; 2) technological decision making; 3) process design; 4) judgment of whether one next process is proceeded or not, repeating of the step 2 and the step 3 if the next process is proceeded, and continuing if the next process is not proceeded; 5) technological release; and 6) visual manufacture. The method makes full use of geometric features of an original part model, solves the problem of design quality requirements of three-dimensional technological design on the original part model, and is capable of creating the process model according to the practical machining technological operation sequence, so that integral efficiency of a three-dimensional technological design system is improved.

The invention relates to a wet phosphoric acid production process through a ceramic membrane method. The wet phosphoric acid production process is characterized in that crude phosphoric acid filtered by a filter is pumped into a ceramic membrane separation system to be filtered, so that suspended matter in the crude phosphoric acid is removed, and clarified and transparent diluted phosphoric acid is obtained; and a ceramic membrane concentrated solution returns into the filter to circulate and is discharged along with gypsum filter residues. Compared with a conventional wet phosphoric acid production process, the wet phosphoric acid production process provided by the invention has the characteristics that the crude phosphoric acid filtered by the filter is not aged and clarified and directly enters the ceramic membrane separation system to be filtered, and therefore, the technological process and the crude phosphoric acid processing time are shortened; furthermore, a flocculating agent is not needed in the treating process; and, after the crude phosphoric acid is filtered, the solid content in the crude phosphoric acid is reduced to 0.01 wt% and below. The wet phosphoric acid production process disclosed by the invention can effectively solve the technical problems of long technological process and crude phosphoric acid processing time and low suspended matter removing efficiency in the traditional wet phosphoric acid production process; simultaneously, the ceramic membrane separation system in the invention is simple in equipment and small in occupation area; and continuous operation can be realized.

The invention discloses a one-way impact isolating device for a satellite. The one-way impact isolating device is mainly composed of a frame body, a cover plate, a bottom plate and two energy absorption material blocks. The cover plate is mounted on the frame body and is in surface contact with the frame body, a relative displacement section is formed inside the plate surface of the cover plate between the cover plate and the frame body, and thus an impact energy absorption action space exists in the direction. The bottom plate is mounted on the frame body, and the bottom plate and the cover plate are in surface contact. The energy absorption material blocks are contained into two enclosed spaces which are defined by the frame body, the cover plate and the bottom plate and are in close fit with the frame body and the cover plate. According to the one-way impact isolating device for the satellite, an impact-isolated object can be borne reliably and safely, the mounting rigidity, strength, position accuracy and the like of the impact-isolated object are guaranteed, meanwhile, impact transmission can be effectively isolated in one certain direction, it can be reliably guaranteed that the impact-isolated object has a sufficiently small impact environment, and the purpose that the impact-isolated object or an impact sensitive component can operate safely in an on-orbit mode for working is achieved.

The invention provides a reverse sanding process comprising the following steps that: (1) a ceramic anilox roller with 80-120 wires is utilized, and the requirements are as follows: in the area with one square meter, more than 40000 ink cells exist, the angle of each ink cell is 60 degrees, and the depth of each ink cell is 13-33micrometers; (2) the temperature of a production environment is kept between 22 DEG C-29 DEG C, and the humidity is controlled between 45 degrees-65 degrees; (3) single-set colorless transparent ultraviolet (UV) light curing oil ink and single-set colorless transparent UV light curing UV are selected, and the viscosity is 45-60PaS; (4) five 15KW UV lamps are selected, the wavelengths of ultraviolet rays of the UV lamps are 200-400, the first group of control power and the second group of control power are 50%, and the control power of the three UV lamps of a paper absorbing drying channel is 100%; and (5) the printing is conducted according to an existing offset print operation procedure. According to the reverse sanding process provided by the invention, the printing and sanding process of printing materials with six colors or less then six colors can be completed at one time, the large-area sanding and surface mirror effects can be realized, and the printing precision problem can be solved effectively.