47results about How to "Satisfy mobility" patented technology

The invention discloses a novel wet production process for feed-grade active zinc oxide, belonging to the field of feed additives. The process comprises steps such as neutral leaching, ammonia leaching, acid leaching, primary purifying, secondary purifying, carbonization reaction, washing and filtering, drying, heating for decomposing, and the like. In the process, active zinc oxide is produced by directly carbonizing an acid immersion liquid and an ammonia immersion liquid, so that cheap zinc flue dust is utilized, ammonia water in the ammonia immersion liquid and ammonium hydrogen carbonateare taken as carbonization precipitating agents of the acid immersion liquid, ammonia water and ammonium hydrogen carbonate are not additionally used, an ammonia evaporation step is eliminated, and production cost is reduced greatly; the bulk density of the obtained active zinc oxide can be up to 0.9-1.1 g/cm<3> and even higher, the higher requirements of the feed additive industry on the fluidity and bulk density of active zinc oxide are met; and the moisture content is lowered, so that the drying cost on every ton of product is lowered by about 200 yuan.

The invention aims to provide an epoxy thermosetting resin composition that can be bent and have a film insulation layer, has reliability and processing characteristic that compare favourably with halogen-free FR-4, and is low in fluidity in a vacuum pressing process. The thermosetting resin composition includes (a1) liquid epoxy resin; (a2) solid epoxy resin; (b) aromatic diamidogen compound with ether group; (c) solvent soluble polyimide resin with weight-average molecular weight below 50000; and (d) phenoxy resin. The amount of (c) solvent soluble polyimide resin with weight-average molecular weight below 50000 and (d) phenoxy resin is more than 15 parts by weight and less than 100 parts by weight when the total amount of the (a1) liquid epoxy resin, (a2) solid epoxy resin, (b) aromatic diamidogen compound is arranged to be 100 parts by weight.

The invention provides epoxy rubber composite modified asphalt and a preparation method thereof. The epoxy rubber composite modified asphalt comprises the following components in parts by weight: 10-70 parts of epoxy resin, 5-20 parts of rubber powder, 30-90 parts of asphalt, 0-10 parts of regulating oil, 1-5 parts of a viscosity reducer and 0.1-0.5 part of a composite stabilizer. The epoxy rubber composite modified asphalt has the remarkable technical characteristics of being adjustable in rigidity, low in viscosity in the construction process, high in viscosity and elasticity under the service condition, good in high-temperature stability, high in durability, energy-saving and environment-friendly.

The invention discloses a shear-type teacher's desk adopting a synchronous belt for lifting adjustment. The shear-type teacher's desk adopting the synchronous belt for lifting adjustment comprises a desk top and two shear-type extendable rods arranged below the desk top. The top ends of the two shear-type extendable rods are inlaid into a groove formed in the bottom end of the desk top, the bottom ends thereof are connected to ball screw nuts sleeving corresponding ball screws, a synchronous wheel is connected at one of the ends, on the same side, of the two ball screws, the two synchronous wheels are mounted coaxially, a drive device is connected with one of the two ball screws, the synchronous belt is connected between the two synchronous wheels, the two ball screws and the drive device are fixed on a bottom plate, and rolling wheels are arranged at the bottom peripheral end of the bottom plate. The shear-type teacher's desk adopting the synchronous belt for lifting adjustment has the advantages that adjusted through the ball screws, the shear-type extendable rods can be adjusted in height mechanically flexibly and can be compressed to fold, and accordingly the shear-type teacher's desk is convenient to carry and store; with the four rolling wheels, the shear-type teacher's desk is convenient and flexible to move, thereby meeting the requirements of mobile teaching and teaching interactivity nowadays and being highly practical and worthy of wide popularization.

The invention relates to a pressure sensing device, which is used for measuring pressure of flow media under a high voltage environment, and comprises a pressure sensor, an interface piece, an isolation piece and insulation liquid, wherein the pressure sensor is provided with a pressure probe, the interface piece is provided with a through hole, the isolation piece is used for isolating the flow media, the pressure probe and the isolation piece are respectively arranged at the two ends of the interface piece and are oppositely arranged for jointly forming a sealing cavity for containing the insulation liquid, the sealing cavity is filled with the insulation liquid for enabling the pressure probe and the flow media to be in mutual electric insulation, and when the pressure of the flow media is measured, the interface piece is arranged on a carrier for containing the flow media, the isolation piece is contacted with the flow media, and the pressure probe acquires the pressure of the flow media through the insulation liquid and the isolation piece. The pressure sensing device is applicable to measuring for the pressure of flowing liquid or melt under the high voltage environment, and is good in insulation and stable in measurement.

The invention relates to a colored adhesive ink for 3D printers, which is composed of the following components in parts by weight: 8-10 parts of glycerol, 10-12 parts of ethylene glycol, 0.4-0.6 part of ethylenediamine, 0.6-1 part of monoethanol, 70-88 parts of distilled water, 1-2 parts of activator, 0.5-1 part of dye and 0.1-0.2 part of vinyl acetate. The preparation method comprises the following steps: proportionally weighing the components, mixing the components in a mixing barrel, stirring at the speed of 110-120 r/min under vacuum conditions for 40-50 minutes while controlling the temperature at 30-40 DEG C, filtering the uniform mixed solution with a paper filter, and storing in a sealed state in a dark place. The colored adhesive ink for 3D printers has the characteristics of simple preparation technique, high adhesive strength, high adhesion speed and low corrosivity, and can satisfy the requirements of flowability, adhesive strength, adhesion time, color, transparency, corrosivity, safety and the like for the 3D printers.

The invention discloses a multi-component high-alloying high-Nb-TiAl intermetallic compound. The intermetallic compound comprises, by mole percentage, 40-50% of Al, 4-12% of Nb, 0-15% of (W, Ta, Mo and Co), 0-4.5% of (Ni, Fe, Hf and Zr), 0-4% of (V, Cr and Mn), 0-2% of B, 0-3% of (C and Si), 0-3% of rare earth element and the balance Ti and inevitable impurity. The number of alloy components is noless than 6 kinds. An obtained novel high-Nb-TiAl alloy material for casting and additional material manufacturing has excellent high-temperature strength, screep resisting performance and oxidationresisting performance, the casting and additional material manufacturing technology is good in performance, and the high-Nb-TiAl alloy can be adopted for producing precise castings and additional material manufactured components serving at 850 DEG C on a large scale, can also be used for preparing a heat deforming high-Nb-TiAl alloy component serving at a high temperature, and has popularization value.

The invention discloses filling slurry containing waste concrete aggregate and used for coal mine. The filling slurry is composed of, by mass, 8-12% of cement, 18-22% of fly ash, 24-28% of coal gangue, 22-26% of the waste concrete aggregate and the balanced being water. The invention develops filling slurry, in which coarse and fine waste concrete aggregates are employed for replacing coal gangue, for application to coal mine goaf, wherein the filling slurry can satisfy demands of flowability and strength of filling of coal mines. Because a large quantity of the coarse and fine waste concrete aggregates are employed, the invention supplies a good solution scheme for treatment of urban concrete construction wastes, which is beneficial to environment protection. In addition, strength of the filling slurry is higher than that of the coal gangue in the prior art, thereby further improving safety of coal mines.

The invention discloses high-performance pumpable concrete for a well drilling wall and a preparation method thereof. The high-performance pumpable concrete comprises the following components in parts by weight: 400-450 parts of cement, 0-30 parts of silicon powder, 40-100 parts of coal ash, 0-100 parts of slag, 460-600 parts of a bonding material, 620-730 parts of sand, 1060-1110 parts of stone, 160-170 parts of water and a water reducer and a pumping agent which accounts for 1-3% of the total weight of the components. The concrete disclosed by the invention can satisfy the mobility of pumping request and the slump of the concrete is over 160mm; the concrete is good in homogeneity and the high-performance concrete prepared is not layered or separated and does not bleed under a great slump, so that the pump concrete discharged is in a continuous and uninterrupted turbulent condition; the frictional resistance of the concrete with a pipe wall is small and the preparation process is simple; the concrete is low in heat of hydration, high in durability and ant-crack and anti-permeability performances.

The invention discloses ciprofloxacin thermo-sensitive type in-situ gel composition and belongs to the field of veterinary drug preparations. The thermo-sensitive type in-situ gel composition comprises, by weight volume (g/ml), 5%-10% of ciprofloxacin, 20%-26% of poloxamer 407, 0.5%-10% of poloxamer 188, 0.01%-0.04% of edetic acid, 0.009%-0.03% of bacteriostatic agent, and 0.1%-0.2% of antioxidant. Solvent of the composition is acetic acid - sodium acetate buffer solution. The invention further discloses a preparing method of the composition. The ciprofloxacin thermo-sensitive type in-situ gel composition is liquid at room temperature, jelling temperature is close to body temperature, and therefore dosing is convenient and jelling speed is high, jelling strength and adhering function are good, the dosing can be achieved with accurate positioning, and loss of drug is reduced. Furthermore, the ciprofloxacin thermo-sensitive type in-situ gel composition and the preparing method thereof have controlled-releasing and long-acting functions, dosage is low, the number of times of dosing is small, harm caused by implants normally used is avoided, and pain of patients is relieved.

The invention discloses a method for preparing a grouting and filling material by utilizing industrial solid waste. The method comprises the following specific steps: determination of raw materials ofthe grouting and filling material: selecting building waste recycled aggregates, steel slag powder, glued stone and concrete as the raw materials; respectively determining proportions of required cementing materials to water through measurement, determining the proportion of the required building waste recycled aggregates to the steel slag powder, and determining the proportion of the required concrete to the glued stone; mixing and preparing of a filling material: preparing the grouting and filling material according to the determined proportions of the cementing materials to the water, thedetermined proportion of the building waste recycled aggregates to the steel slag powder and the determined proportion of the concrete to the glued stone. According to the method disclosed by the invention, not only the problem of urban environment pollution can be reduced, but also the problems of source and cost of the grouting and filling material can also be solved, and meanwhile, the fluidityand the compression strength of the grouting and filling material both can accord with requirements.

The invention discloses self-compacting concrete based on an ultrasonic concussion technology and a preparation method of the self-compacting concrete. According to the method, stone powder byproducts generated in the machining process of a quarry are selected; sisal fibers and stone powder are applied to the self-compacting concrete; the working performance and the mechanical strength of the self-compacting concrete can be remarkably improved through the synergistic effect of the sisal fibers and the stone powder after the sisal fibers are modified through ultrasonic oscillation. Surface treatment is performed on the sisal fibers, ultrasonic oscillation, is performed; water and an additive are added to prepare a mixed solution; the mixed solution is stirred and oscillated, so that particles can be uniformly dispersed, so that the characteristics of the material are exerted to the greatest extent; and the finally obtained sisal fiber-stone powder self-compacting concrete can meet the flowability required by application to engineering, and the excellent mechanical property and strength are also ensured.

The invention discloses a geopolymer grouting material based on incineration fly ash and a preparation method of the geopolymer grouting material, and the geopolymer grouting material comprises the following components: incineration fly ash, fly ash, metakaolin, silica fume, calcined gypsum, a solid powdery alkaline activator, bauxite, soda lime, a water reducing agent, hydroxypropyl methyl cellulose ether, a defoaming agent, a polyether air entraining agent, a plastic expanding agent, a solid powdery adsorbent, and water. According to the incineration fly ash-based geopolymer grouting material and the preparation method thereof provided by the invention, heavy metal ions of incineration fly ash are solidified by utilizing the characteristics of a three-dimensional network cage-shaped structure of the geopolymer material, so the recycling problem of straw and municipal waste incineration fly ash is solved, and the landfill problem of traditional solidified heavy metal ions is solved. The polymer grouting material provided by the invention not only can well solidify heavy metal ions in the incineration fly ash, but also is convenient to construct and transport, and the prepared polymer grouting material is excellent in performance in various aspects.

The invention discloses a ganoderma lucidum spore powder tablet and a preparation method thereof. The tablet comprises 10-17 parts of ganoderma lucidum spore powder, 7-13 parts of ganoderma lucidum polysaccharide or dendrobium officinale polysaccharide, 6-10 parts of microcrystalline cellulose, 8-10 parts of lactose, 4-5 parts of white granulated sugar, 3-10 parts of maltodextrin, 0.5-1 part of magnesium stearate and 5-7 parts of 50-60% ethanol solution or 15-20% glutinous rice flour slurry. The preparation method comprises the following steps: mixing part of the raw materials according to an equivalent incremental mixing principle, adding maltodextrin and an adhesive to prepare a soft material, performing granulating, performing drying, finishing granules, adding magnesium stearate, performing mixing, and performing tabletting. Through formula optimization and process optimization, the prepared ganoderma lucidum spore powder tablets are uniform in color, smooth and complete in surface, and good in hardness and friability, the obtained tablet products are good in quality consistency, the content of ganoderma lucidum spore powder in the products is high, and the sensory property and palatability of the tablets are improved.

The invention discloses 3D printing thermal insulation concrete containing SiO2 aerogel and a preparation method of the 3D printing thermal insulation concrete. The concrete comprises the following components: cement, silica fume, quartz sand, river sand, SiO2 aerogel, a water reducing agent, water and a hydrophilic surfactant. The hydrophobic aerogel is modified by using the hydrophilic surfactant to reduce the hydrophobicity of the aerogel, and the mixing amount of the hydrophobic aerogel in cement mortar is increased on the premise of not changing the properties of the aerogel; and meanwhile, the flowability of the concrete is ensured, so that the heat conductivity coefficient of the concrete is reduced, and the thermal insulation effect of the concrete is improved.

The invention discloses an environment-friendly treatment system capable of realizing harmless treatment of drilling waste. A first liquid-phase collecting tank is arranged below a liquid waste outlet of a high-frequency drying vibrating sieve, a solid waste outlet of the high-frequency drying vibrating sieve is connected with an inlet of a rock waste spin-drying machine through a first screw conveyer, a second liquid-phase collecting tank is arranged below a liquid waste outlet of the rock waste spin-drying machine, and a solid waste outlet of the rock waste spin-drying machine is connected with a solid waste transfer tank through a second screw conveyer; the first and second liquid-phase collecting tanks are connected with an inlet of a high-speed variable-frequency centrifuge after being connected with a first mud pump in series through pipelines respectively, a solid waste outlet of the high-speed variable-frequency centrifuge is connected with the solid waste transfer tank through a third screw conveyer, and a third liquid-phase collecting tank is arranged below a liquid waste outlet of the high-speed variable-frequency centrifuge. With the adoption of the system, treatment of waste while drilling can be realized, a liquid phase can be recycled, solid waste is subjected to harmless treatment, potential pollution risks are eliminated, the drilling cost is saved, and drilling operation requirements for having characteristics of flowability, temporality and dispersity are met.

The invention relates to an additive for dry reactive powder concrete powder and usage thereof. In percentage by weight, the materials of the additive are as follows: 5 to 55 percent of superplasticizer powder; 2 to 15 percent of air-entraining agent powder; 1 to 20 percent of defoamer powder; and 30 to 70 percent of coal ash. The invention organically integrates inorganic materials and organic materials together, and solves the problem of compatibility between the additive and the inorganic materials as well as the organic materials by way of modification. All the main property indexes of reactive powder concrete coordinate with, constrain and affect one another. By means of the additive, various properties of the reactive powder concrete are modified, such as the air-entraining effect and the shrinkage-reducing effect, consequently, after the dry reactive powder concrete powder is mixed with water, all the components are added to one another and affect one another, and thereby the main property indexes of the reactive powder concrete can meet the requirements of construction and designs.

The invention discloses an air purifying and wet flue gas dehumidifying device. Wet flue gas enters a spraying mixing unit, is sprayed by a nozzle to be cooled and is sufficiently mixed with sprayed water mist; the mixed wet flue gas enters a high speed peeling unit; due to small centrifugal force, pure air is blocked by a high speed rotating peeling internal cabin and is directly exhausted by anair exhaust passage; partial air and fog drops penetrate through the peeling internal cabin to be thrown to the internal wall of a peeling external cabin so as to form water flow to flow down; partialfine fog drops and the air form an air flow with higher moisture content to enter a condensing and dehumidifying unit; water in the air is separated out to form a water film and a water flow; the wetflue gas which still contains partial fine liquid drops is finally led to an inertial separation unit to be separated; and the treated pure air is exhausted via an air exhaust passage to finish the full process of wet flue gas dehumidifying and air purification. The wind drag in the whole purification and dehumidifying process is lower, requirements on high speed flowing and high throughput treatment of the wet flue gas are satisfied, and the wet flue gas is dehumidified while the air is purified.

The invention discloses a formulation of high-manganese cupronickel brazing filler metal and a production process of the high-manganese cupronickel brazing filler metal. According to the formulation of the high-manganese cupronickel brazing filler metal, the high-manganese cupronickel brazing filler metal is prepared from the components in percentage: 8.5-10.5% of Ni, 36.5-38.5% of Mn and the balance of Cu. The production process of the high-manganese cupronickel brazing filler metal comprises the steps of batching, vacuum melting, forging, rolling, drawing and annealing, scaling and finishedproduct drawing, finished product annealing, inspection and packaging and storage. The requirements of electronic valve welding can be met, and the fluidity and the wettability during welding and thecorrosion resistance and the welding strength after welding can be met; and the electronic valve cost is greatly reduced. The production process of the high-manganese cupronickel brazing filler metalhas simple and convenient operation steps, perfect steps and high quality of produced welding wires.

The invention provides a sarpogrelate hydrochloride tablet. The sarpogrelate hydrochloride tablet is composed of the following raw and accessory materials by weight: 100 parts of sarpogrelate hydrochloride, 60 to 100 parts of microcrystalline cellulose PH302, 4 to 8 parts of citric acid, 2 to 6 parts of magnesium stearate, 8 to 12 parts of aerosil and 5 to 6 parts of Opadry (registeration trademark) 295F6800. The tablet has low preparation cost and better stability compared with commercially available preparations. The invention also provides a preparation method for the sarpogrelate hydrochloride tablet to overcome contradiction between minimal accessory materials and particle mobility. Research results in the invention prove that when sarpogrelate hydrochloride and citric acid are mixed and crushed to specific particle sizes in advance and then mixed with microcrystalline cellulose of a specific model, the requirement on mobility of mixed particles during direct pressing of powder is met and the dissolving-out behavior of the tablet is realized; and results of stability test show that the tablet has better stability compared with commercially available preparations.