37results about How to "Will not pulverize" patented technology

The present invention discloses one kind of Al-Mg-Fe alloy for deoxidizing and desulfurizing molten steel. The Al-Mg-Fe alloy is produced through special pressure working, rather than smelting in a common induction furnace. It is one kind of energy-saving high purity alloy with alloy recovering rate as high as 100 %, no pollution and capacity of lowering steel deoxidizing and desulfurizing cost. It is suitable for deoxidizing and desulfurizing molten steel for making different steel products.

The invention relates to a methyl methacrylate(MMA) floor coating capable of rapidly solidifying. The methyl methacrylate(MMA) floor coating capable of rapidly solidifying can be prepared by two steps. First of all, according to a certain proportion, methyl methacrylate(MMA), butyl acrylate (BA), acrylic acid (AA) and benzoyl peroxide (BPO) are put into a reactor provided with a thermometer, a condenser and a stirrer for water bath heating to prepare an acrylate prepolymer for standby use; then at room temperature, a proper amount of the acrylate prepolymer is dissolved and diluted with a certain amount of MMA and BA, talcum powder, liquid wax, an auxiliary agent, an initiator and a solidifying accelerator are added, and fully stirred to obtain the floor coating, and the floor coating is prepared on site during construction, and can solidify 1 hour after the pavement. The MMA floor coating is short in solidifying time, less affected by temperature, excellent in performance, green, environmentally friendly, and wide in adaption field.

The invention provides an inorganic foaming filling and reinforcing composition for a coal mine as well as a using method and application thereof. The inorganic foaming filling and reinforcing composition for the coal mine can be used as a novel safe plugging and reinforcing material, is especially suitable for plugging and reinforcing of the coal mine, and is the best water-proof, fire-proof, gas-proof, collapse-proof and accident-proof material.

The invention discloses a preparation method for a catalysis/adsorption material by taking kieselguhr as a carrier. The preparation method comprises the following steps of adding 15-20 parts of absolute ethyl alcohol into 1 part of purified kieselguhr, then adding 1-3 parts of a metal compound, 0.1-0.3 part of aluminum oxide, 0.1-0.3 part of glass fibers, 0.02-0.04 part of nitric acid and 5-7 parts of deionized water in sequence under magnetic stirring for mixing and stirring; performing centrifugal washing on obtained substances by the deionized water; and drying washed ore pulp at first, and then calcining the ore pulp, thus obtaining the catalysis/adsorption material. The catalysis/adsorption material prepared by the method disclosed by the invention can prolong the retention time of organic pollutants in a reactor by using the adsorption capacity of kieselguhr, and loaded metal oxide can generate a relatively good catalytic oxidation effect in a discharging process, so that the oxidization degree of organic pollutants is increased.

The invention aims at overcoming the shortcomings of environmentally-friendly fire-resistant magnesium oxysulfate stone materials and providing an environmentally-friendly fire-resistant magnesium oxysulfate decorative material and a corresponding preparation method thereof. The environmentally-friendly fire-resistant magnesium oxysulfate decorative material has a good appearance effect, good physical and chemical properties, excellent heat preservation and insulation properties and sound-and-fire proofing performance, meanwhile has good weather-resistant performance, has very strong durability and color stability in various severe climatic environments, is not pulverized, does not shed and is difficult to discolor.

The invention relates to a method for producing granular potassium chloride and belongs to the technical field of manufacture of fertilizers. The method comprises the specific steps of preparation of a binder and pelleting of powdered potassium chloride; adding polyacrylic emulsion, whose solid content is 53%, in water in a container to uniformly agitate the polyacrylic emulsion and water, then sequentially adding benzyl alcohol, ethylene glycol, sodium benzoate and polyvinyl butyral in proportions, and fully and uniformly agitating the mixture. The process may be batch production or continuous production. If the process is batch production, the powdered potassium chloride is added to a disk pelletizer, and the binder is sprayed into rotary materials in proportion and pelletized into balls. The product is prepared by drying, cooling and sieving. If the process is continuous production, the powdered potassium chloride is added to a disk or rotary drum granulator; the binder is continuously sprayed into the rotary material in proportion and pelletized into balls, and the product is prepared by drying, cooling and sieving. The product is round and intact in particles, smooth in surface and high in strength. The product can be used as a bulk-blended fertilizer material. The top potassium oxide content of the product can be up to 59.5%.

The invention discloses an improved zirconium oxide fiber plate, which is characterized in that on the basis of the existing fiber plate preparation process, through the addition of inorganic bondingagents and infrared light-screening agents, the zirconium oxide fiber plate with high pressure-resistant intensity and low high-temperature heat conduction rate can be prepared, wherein the inorganicbonding agent is mainly basic silicon sol; the infrared light-screening agent is mainly rutile type titanium dioxide or potassium hexatitanate whiskers. The density of the prepared zirconium oxide fiber plate is 0.6 to 0.8 g/cm<3>; the room temperature pressure-resistant intensity is 3.0 to 5.0 MPa; when the thickness of the sample is 1 cm, in the stable state, the hot surface temperature is 1000DEG C; the cold surface temperature is 270 to 300 DEG C; the hot surface temperature is 1200 DEG C; the cold surface temperature is 310 to 330 DEG C.

The invention discloses a preparation method of a spherical lithium-sulfur battery cathode material, and further discloses the spherical lithium-sulfur battery cathode material prepared through the method. The preparation method comprises the steps: a sulfur precursor, a carbon source, an adhesive and a polar adsorption additive are dispersed into water, after even stirring, spray drying is conducted, and the monodisperse spherical cathode material is prepared. The spherical lithium-sulfur battery cathode material is constituted by sulfur, a carbon carrier, a polymeric additive and the polar adsorption additive; and the spherical lithium-sulfur battery cathode material is presented to be a spherical particle or a monodisperse spherical particle under a scanning electron microscope, whereinthe spherical particle is evenly distributed with the sulfur and formed by carbon nano tubes which are mutually staggered and entangled, and the monodisperse spherical particle is evenly distributedwith the sulfur and formed by graphene sheets which are mutually staggered and entangled. The preparation method is simple, the lithium-sulfur battery cathode material can be quickly prepared, the prepared spherical lithium-sulfur battery cathode material has the high adsorption capacity and electrical conductivity, and monodispersity, and can be effectively loaded with the sulfur, and a formed conductive network is practically available.

The invention provides a sintering method for silicon manganese alloy dust. According to the method, high temperature resistant coke powder used as a sintering adhesive of manganese mineral powder and dust and a plant fiber serving as combustion improver are sintered at the temperature of 800-1,200 DEG C to obtain massive porous sintered products. The finished product has high mechanical strength, the situations of dusting in the sintering process and massive dust generation in the melting process can be avoided. The sintering method is a good method for treating dust and fine mineral powder in manganese plants, and is low in production cost and high in treatment quality.

The invention provides a composite foamed cement board good in water-resistance property. The cement board is prepared from the following components in parts by mass: 140-160 parts of silicate cement, 15-20 parts of coal ash, 3-5 parts of gypsum, 0.3-0.5 part of polypropylene fiber, 0.1-0.3 parts of polypropylene fiber, 0.4-0.6 parts of sodium metasilicate, 0.2-0.4 parts of calcium stearate, 0.3-0.5 parts of triethanolamine, 2-3 parts of aluminum sulfate, 0.4-0.6 parts of magnesium chloride, 0.1-0.3 parts of sodium nitrate, 0.8-1.2 parts of a foaming agent, 0.3-0.5 parts of a foam stabilizer, 3-6 parts of a water repellent and 125-135 parts of water. The composite foamed cement board good in water-resistance property, disclosed by the invention, is high in tensile strength and compressive strength; during exterior wall thermal insulation construction, the composite foamed cement board can be used for preventing the exterior wall from cracking, and is good in water-resistance property, free from pulverization in water, consistent in pore size in the foamed board and excellent in heat insulation property.

The invention belongs to the technical field of metallurgy, in particular relates to a smelting method of calcium-silicon alloy, comprising the steps of putting the raw materials of ferrosilicon, metallic calcium and crushed aggregates of metallic silicon into an intermediate frequency furnace, and smelting under the temperature of 1250 to 1350 DEG C to obtain the calcium-silicon alloy. Compared with the traditional method, in the invention, the different raw materials and devices are used, thus the carbon dioxide discharge is extremely low during the smelting process, the power consumption is far lower than that of other smelting methods, but the quality is higher. As a result, the smelting method of calcium-silicon alloy achieves the effects of energy conservation and emission reduction, and enhances the product quality of the calcium-silicon alloy.

The invention discloses an environment-friendly hot-melt marking coating and a preparation method thereof, and belongs to the technical field of environment-friendly hot-melt marking coatings. The environment-friendly hot-melt marking coating is prepared from, by weight, 13-15 parts of modified C5 petroleum resin, 6-8 parts of a pigment, 27-29 parts of quartz sand, 26-28 parts of ground calcium carbonate, 1-3 parts of castor oil, 2-4 parts of polyethylene wax, 1-3 parts of powdered acrylonitrile-butadiene rubber and 20-23 parts of glass beads. The invention also discloses a preparation methodof the environment-friendly hot-melt marking coating. The environment-friendly hot-melt marking coating has the advantages of good fluidity, high compressive strength, short drying time, high softening point, good flexibility, water resistance, acid and alkali resistance, good light reflection performance and the like.

The invention provides scraping ink as well as a preparation method and application thereof. The scraping ink is prepared from the following raw materials: color paste, water-based resin, a leveling agent, a thickener and an antifoaming agent. According to the scraping ink, the water-based scraping ink is prepared by compounding the color paste, the water-based resin, the leveling agent, the thickener and the antifoaming agent, so that the scraping ink is green and environment-friendly, and can be suitable for various printing modes. The scraping layer obtained by printing is good in covering property, still has excellent covering property even if the thickness is as thin as 1-5 microns, and meets the national standard and cold light source irradiation requirements. Besides, the prepared scraping layer is balanced between wear resistance and easy scraping performance, and is not easy to wear and fall off in production and circulation links while being easy to scrape. When the prepared scraping layer is used for scraping, the ink is agglomerated and cannot be pulverized, and the cleaning degree is high. The performance of the scraping ink is stable, and the situation that ink is obviously difficult to scrape off due to long storage time is avoided.

The invention provides an acrylic acid flexible anticorrosive primer and a preparation method thereof. The primer is composed of a component A and a component B according to a weight part ratio of 100: (15-20), wherein the component A is prepared from flexible acrylic resin liquid with a solid content of greater than 45 percent, a dispersing agent, a leveling agent, an adhesion promoter, an ultraviolet light absorber, a diluent, titanium dioxide, zinc yellow, talcum powder, zinc phosphate, mica powder, light calcium carbonate and bentonite; and the component B is an elastic isocyanate resin liquid with a solid content of more than 90%. The primer can cover telescopic vibration cracks generated during equipment operation due to elastic modulus difference among various base materials, and has elongation at break of larger than or equal to 100%, tensile strength of larger than or equal to 10 Mpa, and an excellent anti-corrosion function.

The invention relates to an antioxidation coating for a high temperature billet. The antioxidation coating comprises an aggregate and a glass washing liquid of which mass is 35 to 60% of mass of the aggregate, wherein the aggregate comprises magnesia brick powder, fused magnesite, quartz sand and high-aluminum powder. The aggregate in the antioxidation coating has ideal high-temperature resistance and water resistance, and does not cause expansion between raw material molecules at a high temperature. The glass washing liquid has excellent adhesion. Therefore, the antioxidation coating does not powder, crack and fall off, is suitable for surface coating of various types of billets and prevents billet oxidation.

The invention belongs to the field of coating, and provides a corrosion-resistant thermosetting powder coating, and a preparation method thereof. The corrosion-resistant thermosetting powder coating mainly comprises, by weight, 30 to 50 parts of epoxy resin, 3 to 8 parts of a curing agent, 8 to 12 parts of polyester resin, 2 to 5 parts of a surface accessory ingredient, 3 to 8 parts of phenolic resin, 10 to 20 parts of barium sulfate, 1 to 3 parts of a pigment, 3 to 8 parts of aluminum powder, 3 to 6 parts of carbon powder, and 1.2 to 1.8 parts of a light stabilizing agent. The corrosion-resistant thermosetting powder coating possesses thermal oxidation resistance and photooxidation resistance at the same time, and excellent corrosion resistance, weather resistance, ultraviolet optical rotation resistance, aging resistance, and stability; color preserving capacity lasts for a long term; no pulverization, crazing, or peeling is caused after long term of ultraviolet irradiation; problems of conventional powder coating that weather resistance and ultraviolet optical rotation resistance are poor, adhesive force is easily reduced, pulverization, crazing, and peeling are easily caused; and powder coating service life is prolonged.

The invention discloses an inorganic environment-friendly high-strength composite fireproof heat-insulation plate. The inorganic environment-friendly high-strength composite fireproof heat-insulationplate comprises, by weight, 150-250 parts of 525 cement, 100-200 parts of high-calcium powder, 150-250 parts of medium materials, 10-30 parts of adhesive powder, 20-40 parts of sodium silicate, 10-30parts of silicon and calcium powder, 10-30 parts of setting accelerators, 5-15 parts of foaming agents, 100-200 parts of 425 cement and 20-80 parts of inorganic fibers. The inorganic environment-friendly high-strength composite fireproof heat-insulation plate has the advantages that good heat-insulation effects can be realized by the inorganic environment-friendly high-strength composite fireproofheat-insulation plate, the inorganic environment-friendly high-strength composite fireproof heat-insulation plate has moderate density, is good in fire resistance and can be quickly solidified and dried under low-temperature conditions, and the construction time for constructing the inorganic environment-friendly high-strength composite fireproof heat-insulation plate in the north in autumns andwinters can be shortened.

The invention relates to the technical field of blast furnace smelting, and provides a preparation method and application of a blast furnace sintering-free cold-bonded pellet, and the preparation method comprises the following steps: S1, burdening: preparing fine iron powder of which the iron content is greater than or equal to 65%; s2, the fine iron powder in the S1 is dried until the moisture content is 3%-5%; s3, carrying out primary stirring on the fine iron powder in the S2, a binder, high-calcium powder and high-magnesium powder to obtain a mixture; s4, carrying out secondary stirring on the mixed material; s5, pressing into balls; s6, the balls are shaped and screened; and S7, the pellets of the oversize materials are dried and cured, and the blast furnace sintering-free cold-bonded pellets are obtained after drying. The invention further provides application of the blast furnace sintering-free cold-bonded pellets in blast furnace ironmaking. By means of the technical scheme, the problem that in the prior art, cold-bonded pellets cannot meet the requirement for furnace charge entering a blast furnace is solved, and meanwhile the problems that in a traditional pre-ironmaking technology, pollution is heavy, energy consumption is high, and carbon emission in the ironmaking process is high are solved.