3156 results about "Ball mill" patented technology

A fireproof magnesium oxide board is prepared by mixing the following raw materials, the raw material names and weight parts are as follows: 80-100 parts of magnesium oxide; 20-30 parts of anhydrous magnesium chloride; 10-20 parts of modified expanded vermiculite foaming agent; 20-30 parts of aluminum silicate fiber; 5-10 parts of sawdust; 10-15 parts of fly ash; 8-12 parts of glass magnesium board crushed powder; 1.5-5 parts of non-woven fabric; 10-20 parts of water; wherein the modified expanded vermiculite is prepared by the following steps: (1) Vermiculite is incompletely expanded and calcined; (2) acrylic acid monomer, sodium hydroxide, acrylamide monomer, initiator potassium persulfate, crosslinking aid pentaerythritol polyglycidyl ether, incompletely expanded vermiculite, and water are taken, stirred evenly and ultrasonically dispersed to obtain a first reaction solution, which is placed in a reactor for reaction to obtain a gel material; (3) the gel material is preliminarily crushed and dried, and then further crushed in a ball mill to obtain a fire-resistant expanded vermiculite with water absorption performance.

The invention provides an alkaline electrolytic water hydrogen production diaphragm based on zirconium oxide modification, the alkaline electrolytic water hydrogen production diaphragm comprises a support layer and a hydrophilic modified coating on the support layer, the hydrophilic modified coating is obtained by coating the support layer with a casting liquid prepared from modified zirconium oxide particles, a film-forming polymer and an organic solvent and then carrying out non-solvent induced phase inversion, the modified zirconium oxide particles are prepared by adding micron-sized zirconium oxide and alkali liquor into a ball mill for ball milling, and the particle size of the zirconium oxide subjected to ball milling treatment is 20-100nm. According to the method, the structure of the micron-sized zirconium oxide particles is regulated and controlled by combining a ball milling-alkali etching synchronous process. Through combination of ball milling treatment and alkali etching treatment, the dispersion degree and the reaction opportunity of the zirconium oxide powder can be effectively improved, and the efficiency of the etching process is remarkably improved. The obtained modified zirconium oxide particles endow the diaphragm with excellent hydrophilicity, alkali resistance and OH <-> ion conduction performance, and the diaphragm has excellent performance when being used as an alkaline electrolytic water hydrogen production diaphragm.

The invention relates to the technical field of inorganic non-metal coating materials, in particular to high-stain-resistance enamel matte glaze and a preparation method thereof.The high-stain-resistance enamel matte glaze is prepared from selected quartz sand, feldspar and other basic raw materials by adding a composite additive Y and a rare earth activator Z. The preparation method comprises the steps that the basic raw materials are mixed and subjected to ball milling, then the additives are added for continuous ball milling, high-temperature melting, water quenching and secondary ball milling are conducted, and the high-stain-resistance enamel matte glaze is obtained. The granularity is controlled, and the stain resistance is improved. The enamel matte glaze has the advantages of obvious advantages, high stain resistance, difficulty in stain attachment, easiness in cleaning, capability of prolonging the service life of a product and reducing the maintenance cost, photocatalytic self-cleaning and environment-friendly characteristics, good matte effect and capability of improving the competitiveness of the product.

The invention relates to the technical field of engineering process control, and discloses a ball mill granularity soft measurement method based on a time sequence large model. Constructing a multi-feature fusion module for extracting multi-scale features based on Convld K3, Convld K5 and Convld K1, and constructing a soft measurement model in combination with multi-head attention and a large language module with a fixed weight; the soft measurement model generates a first feature and a query matrix, generates a key matrix and a value matrix according to a fixed weight of the large language module, generates a second feature based on the query matrix, the key matrix and the value matrix, and fuses the second feature with the first feature to obtain a fused feature; and then a granularity prediction result corresponding to the field data is obtained through a large language module, so that the problems that an existing soft measurement model is too high in dependence on large-scale sample data, insufficient in modeling capability for complex nonlinear process parameters and low in prediction precision are solved.

The invention relates to a magnesia-carbon refractory material with high thermal shock resistance and erosion resistance and a preparation method thereof. The magnesia-carbon refractory material with high thermal shock resistance and erosion resistance is prepared from fused magnesia aggregate, fused magnesia fine powder, silicon powder, crystalline flake graphite, Al2O3-MgO-CaO core-shell structure raw materials and phenolic resin. The Al2O3-MgO-CaO core-shell structure raw materials are prepared by the following steps: uniformly mixing calcium carbonate, magnesium hydroxide and alumina micro powder by adopting a planetary ball mill, and then carrying out granulation treatment by adopting a disc granulator by taking polyvinyl alcohol as a binding agent, so as to obtain core particles; and mixing the inner core particles and the alumina micro powder by taking alumina sol as a binding agent, and further sintering to obtain the core-shell structure raw material. The Al2O3-MgO-CaO core-shell structure raw material is utilized to improve the comprehensive performance of the magnesia-carbon refractory material, and the prepared magnesia-carbon refractory material has excellent thermal shock resistance and slag corrosion resistance and can meet the requirements of the current steel industry for the magnesia-carbon refractory material.

The invention relates to a preparation method of a carbon fiber reinforced metal matrix composite brake disc, and belongs to the technical field of brake disc preparation. Immersing the carbon fiber in an ethanol solution containing a silane coupling agent, and drying; the aluminum-based alloy powder, the copper-based alloy powder and the silicon carbide particles are put into a planetary ball mill to be subjected to ball milling, and metal matrix mixed powder is obtained; the pretreated carbon fibers are woven into a three-dimensional woven prefabricated body, then pores of the prefabricated body are evenly filled with metal matrix mixed powder, cold press molding is conducted, and a composite material prefabricated body is obtained; putting the composite material prefabricated body into a vacuum hot-pressing sintering furnace, and sintering to form a carbon fiber reinforced metal matrix composite material brake disc blank; after solution treatment, adding a rare earth coordination type enhancer and carrying out aging treatment; the carbon fiber reinforced metal matrix composite brake disc prepared by the method has excellent wear resistance and mechanical properties, and can meet the use requirements of modern high-performance vehicles on brake discs.

The invention relates to the field of high-temperature anti-oxidation coatings, in particular to a tantalum-tungsten alloy surface high-temperature anti-oxidation composite coating and a preparation method thereof.The coating is composed of two layers of coatings with different components, the thermal expansion coefficients of the coatings and a base body are matched, the thermal expansion coefficients of the coatings are matched, and residual stress and thermal stress are reduced. The coating is prepared by adopting an embedding boriding and slurry melting method, and the used material components comprise ZrB2, MoSi2, 8YSZ, B, La2O3, Al2O3, NaF, TaSi2 and the like. The preparation method specifically comprises the following steps: putting a substrate into embedding powder for boronizing treatment, then mixing a coating material with ethanol and a binder, putting the mixture into a ball mill for wet mixing to prepare coating slurry, spraying the coating slurry on the surface of the substrate, and putting the substrate into a vacuum tube furnace for sintering to prepare a coating, thereby obtaining the high-temperature anti-oxidation composite coating. The binding force between the developed coating and the tantalum-tungsten alloy matrix is strong, and the tantalum-tungsten alloy matrix can be protected from oxidation corrosion or the oxidation rate can be slowed down within 500-2500s at the high temperature (2000 DEG C or above).

The invention belongs to the technical field of cable processing, and relates to a preparation method and application of a flexible superconducting coaxial cable outer conductor. The preparation method comprises the following steps: mixing Nb powder and Ti powder by adopting a vibrating ball mill to prepare NbTi composite powder; a substrate of laser powder bed melting equipment is preheated, the NbTi composite powder is spread on the substrate of the laser powder bed melting equipment, a melting powder layer is scanned through the laser powder bed melting technology, a three-dimensional communicated grid structure is formed through interlayer staggered scanning, finally, the NbTi net-shaped alloy pipe is placed in a strong acid solution to be soaked for a short time, redundant metal powder is removed, and the NbTi net-shaped alloy pipe is obtained. And finally, the preparation of the flexible superconducting coaxial cable outer conductor for the quantum computer is realized.

The invention discloses an on-line oil liquid detection system and method for cement ball milling, and relates to the technical field of industrial equipment state monitoring and fault diagnosis, the system comprises a data acquisition module, a data processing module, a data processing module and a data processing module, the data acquisition module adopts a multi-channel vibration sensor array to perform synchronous data acquisition on positions of a ball mill bearing seat, a gear box and a transmission shaft; an original vibration signal matrix containing multi-component coupling information is obtained through high-frequency sampling, if the sampling frequency is lower than ten times of the wear characteristic frequency, sampling parameters are automatically adjusted until the Nyquist theorem requirement is met, and the fault early warning and model self-adaption module adapts to the change of the equipment operation condition by updating the model parameters in real time; according to the online oil detection system and method for the cement ball mill, the equipment operation reliability and maintenance efficiency are effectively improved, the service life is prolonged, the maintenance cost is reduced, and data support is provided for preventive maintenance decision making of the ball mill.

The invention relates to the technical field of solid waste recycling, in particular to a low-temperature fast-fired ceramic aggregate prepared from electrolytic manganese residues and a method thereof.The method comprises the steps that S1, the electrolytic manganese residues and low-temperature flux are subjected to ball milling and sieved through a 200-325-mesh sieve, and a fine powder blank is obtained; s2, 70-100 parts of electrolytic manganese residues and 2-20 parts of low-temperature flux are evenly mixed, and then a mixture is obtained; s3, adding an external binder into the mixture, aging, adding into a sugarcoating machine, stirring, and spraying distilled water to obtain a spherical ceramic aggregate green body; and S4, drying the spherical ceramic aggregate green body in a drying oven, and quickly firing in a silicon carbide rod furnace to obtain the ceramic aggregate subjected to low-temperature quick firing. The electrolytic manganese residues are rapidly sintered at the low temperature of 1000 DEG C or below, sulfur curing can be achieved, meanwhile, under the action of quartz particles, generated CaSO4 has the high specific surface area, heavy metal elements can be effectively adsorbed and subjected to solid solution, and full utilization of the industrial solid waste electrolytic manganese residues is achieved.

The invention relates to the technical field of piezoelectric light-transmitting functional ceramics, and discloses a high-light-transmitting ceramic material and a preparation method thereof.The preparation method comprises the following preparation steps that sodium carbonate, potassium carbonate, niobium pentoxide, antimony trioxide, samarium oxide and zirconium dioxide powder raw materials are taken, and after primary ball milling and drying are conducted on the powder raw materials, mixed powder is obtained; carrying out pre-sintering and secondary ball milling on the mixed powder, carrying out compression molding to form a tablet, and sintering and polishing the tablet to obtain a ceramic matrix; and spraying the composite slurry to the surface of a ceramic matrix, carrying out heat treatment, and cooling to room temperature to obtain the high-transmittance ceramic material. The antimony trioxide, the samarium oxide and the zirconium dioxide are co-doped, an antimony-samarium-zirconium liquid phase is generated in the ceramic material, pores of the ceramic material are filled and eliminated, and the prepared ceramic material has excellent optical transmittance, piezoelectric property and mechanical strength.

The invention belongs to the field of synthesis of inorganic non-metallic materials, and particularly relates to an equimolar-ratio seven-element high-entropy oxide and a preparation process thereof. The preparation process comprises the following steps: putting seven oxide powder Al2O3, Y2O3, TiO2, ZrO2, NiO, CuO and CeO2 into a ball milling tank according to a molar ratio of 1: 1: 2: 2: 2: 2: 2: 2, adding absolute ethyl alcohol and zirconium oxide grinding balls, performing ball milling in a ball mill, and fully drying and sieving after ball milling to obtain mixed powder; carrying out tabletting treatment on the mixed powder to obtain a to-be-sintered green body; and putting the to-be-sintered green body into an alumina crucible, and putting the alumina crucible into a microwave oven for microwave sintering. According to the method, the equimolar-ratio seven-element high-entropy oxide (AlYTiZrNiCuCe) Ox with good solid solution is obtained, the crystallinity and element uniformity of the seven-element high-entropy oxide are improved, all the raw materials react completely, meanwhile, the process efficiency is high, and energy consumption is low.

The present invention provides a carbon fiber reinforced silicon carbide ceramic and a preparation method thereof, belonging to the technical field of silicon carbide ceramics; the preparation method includes steps of preparing functional carbon fibers, preparing modified silicon carbide microspheres, preparing a mixture, forming and calcining; the step of preparing modified silicon carbide microspheres is as follows: placing silicon carbide in an ethanol solution, adding sodium dodecyl aminopropionate for ball milling treatment, after the ball milling ends, filtering and drying to obtain ball milled silicon carbide; placing the ball milled silicon carbide in dimethyl sulfoxide, stirring evenly, adding modified sodium alginate and hydroxyethyl cellulose, heating to 70 - 74 °C, adding tetrabutylammonium bromide, carrying out a heat preservation reaction for 10.0 - 11.5 h, after the reaction ends, filtering, washing and drying to obtain modified silicon carbide microspheres; the ceramic product prepared by the present invention has high strength performance and toughness, a low thermal expansion coefficient, and excellent high temperature oxidation resistance.

The invention discloses a preparation method and application of washable tin-based perovskite quantum dots, and the preparation method comprises the following steps: mixing cesium iodide powder, tin iodide powder and mesoporous silica powder, and then placing the mixture in a plasma ball mill for ball-milling diffusion, cesium iodide and tin iodide react in a confinement space of mesoporous silica to generate a CsSn I < 3 >-coated SiO2 composite structure, CsSn I < 3 > quantum dots are dispersed and coated in the mesoporous silica, and the application of the tin-based perovskite quantum dots in the anti-ultraviolet textile fabric is provided. The method has the following beneficial effects that the purpose of remarkably improving the stability of the tin-based perovskite quantum dots and the washing resistance of the textile is achieved.

The utility model discloses a conveying device for recycling waste steel balls of a ball mill, which belongs to the technical field of conveying devices, and is characterized in that the conveying device comprises a support frame and a motor, a body is mounted on the support frame and comprises two protective plates, one end between the two protective plates is rotatably connected with a driving roller, and the other end between the two protective plates is rotatably connected with the motor. One end of the motor is provided with a driving roller, the other end of the motor is provided with a driven roller, the motor is connected with the driving roller, a plurality of lifting rollers are arranged between the two protection plates, a belt is arranged on the driving roller, the driven roller and the lifting rollers, and a plurality of limiting grooves are formed in the surface of the belt at equal intervals. Two electric push rods are arranged between the ends, close to the driven roller, of the two protection plates and the supporting frame. According to the device, steel balls and minerals can be prevented from falling off, resources are saved, the conveying angle can be adjusted, it is ensured that materials are conveyed at the optimal angle, and the conveying efficiency is improved.

A high-abundance rare earth iron boron regenerated magnet and its preparation method belong to the field of rare earth permanent magnet materials and their recycling technology. After surface treatment, high-abundance Ce / La rare earth iron boron unqualified products and processing waste are subjected to coarse crushing and hydrogen explosion powdering; a Ce, La, Nd, and Pr rare earth alloy is prepared using a rapid solidification belt spinning technology and hydrogen explosion; the above two materials are ball milled, mixed, oriented, and pressed according to a certain proportion, and then sintered and heat treated to obtain a regenerated sintered magnet. The regenerated magnet prepared by the present invention has a waste material utilization rate of up to 95%, a low rare earth addition amount (0 to 5wt.%), and a light rare earth addition ratio (LaCe / NdPr) greater than 50%. The coercive force of the regenerated magnet is significantly improved, and the comprehensive magnetic properties are equivalent to or even higher than those of the original magnet. The present invention can accurately control the cheap light rare earths La and Ce to obtain a high-performance regenerated magnet, thereby realizing the high-value recycling of high-abundance rare earth permanent magnets.

The invention discloses a silicon carbide / silicon dioxide hybrid reinforced aluminum-based composite material and a preparation method thereof.The performance of the silicon carbide reinforced aluminum-based composite material is improved through low-density and low-expansion-coefficient silicon dioxide, and the wettability of silicon carbide and an aluminum alloy matrix can be improved by adding the silicon dioxide; and the thermal expansion coefficient of the aluminum-based composite material can be further reduced. According to the method, the aluminum alloy powder is obtained by adopting an aerosol method, and the high-energy ball milling method and the hot isostatic pressing sintering process are combined, so that the composite powder is formed under uniform pressure and lower temperature, an AlC3 brittle phase generated by harmful interface reaction is avoided, the compactness of the aluminum-based composite material can be greatly improved, and the service life of the aluminum-based composite material is prolonged. The problems that an aluminum alloy matrix containing silicon carbide reinforced particles is poor in wettability and poor in size stability under the condition that the temperature changes drastically are solved.

A preparation and use method for an Nb5Si3 composite spheroidized powder. The preparation method comprises: A) mixing an Nb powder, an Si powder, PVA and water, and ball milling the resulting mixture to obtain a slurry; and subjecting the slurry to spray granulation and sieving, so as to obtain an Nb5Si3 composite agglomerated powder; and B) subjecting the Nb5Si3 composite agglomerated powder to plasma spheroidization to obtain the product. The use method comprises mixing the Nb5Si3 composite spheroidized powder with NbTiX, wherein X is three or more of Zr, Hf, V, Mo and Ta; Nb and Si in the raw materials are subjected to an in-situ reaction during a laser additive melting process; and in combination with a rapid solidification process, a submicron Nb5Si3 particle-reinforced Nb5Si3 / Nbss dual-phase alloy can be obtained. Compared with a cast alloy having the same components, the Nb5Si3 particle-reinforced phase can be greatly reduced from a size level of dozens of microns to a submicron level, which greatly reduces the brittleness of the particle-reinforced refractory alloy, and significantly improves the strength of the particle-reinforced refractory alloy.

The present application belongs to the technical field of gaseous arsenic adsorption, and particularly relates to a sulfur-tolerant gaseous arsenic adsorption material, a preparation method and application thereof. Manganese oxide and an iron source are mixed and placed in a ball mill jar, then the ball mill jar is sealed, argon is filled into the jar, and the iron-modified manganese oxide adsorption material is obtained by ball milling. The addition of iron improves the sulfur tolerance of manganese oxide, so that the adsorbent still has high gaseous arsenic adsorption capacity under high-concentration SO2 conditions, and is suitable for the removal of gaseous arsenic in typical high-SO2 flue gas, i.e. non-ferrous smelting flue gas. The preparation method is simple, the cost is low, the gaseous arsenic adsorption capacity is large, and the present application has a wide application prospect.

The preparation method of the rare earth antibacterial glaze comprises the following steps: mixing 30-48 parts by mass of quartz sand, 20-35 parts by mass of borax, 25-35 parts by mass of feldspar powder and 10-25 parts by mass of zinc oxide into a ball mill for ball milling, sieving the ball-milled material, and drying to obtain powder A; mixing 0.5-3 parts of lanthanum oxide, 0.5-2 parts of cerium oxide and 100 parts of powder A into a ball mill for ball milling, and sieving and drying the ball-milled material to obtain powder B; melting the powder B at 1350-1400 DEG C to obtain a glaze melt, taking out the glaze melt, tabletting, and cooling to obtain a glaze frit; and carrying out ball milling on the glaze frit until the particle size is less than 20 microns, slowly heating to 650-700 DEG C, and carrying out heat preservation for 25-30 minutes to obtain the rare earth antibacterial glaze. The ceramic prepared from the rare earth antibacterial glaze has broad-spectrum antibacterial performance, inhibits the breeding of microorganisms such as bacteria and fungi, and reduces the infection risk.

The utility model discloses an efficient energy-saving continuous ball mill which comprises a frame body, a grinding cylinder body, a feeding hole, a discharging hole, a slurry inlet assembly, a slurry outlet exhaust assembly and a driving assembly, the grinding cylinder body is rotationally arranged on the frame body, a grinding medium is arranged in the grinding cylinder body, the feeding hole and the discharging hole are formed in the two sides of the grinding cylinder body respectively, and the slurry inlet assembly and the slurry outlet exhaust assembly are arranged on the frame body. A slurry inlet assembly is arranged in the feeding hole and communicates with the interior of the grinding cylinder, a slurry outlet exhaust assembly is arranged in the discharging hole and communicates with the top space of the grinding cylinder, and a driving assembly is further arranged on the frame; through the slurry discharging and exhausting assembly, exhausting can be carried out while slurry discharging is carried out, and the gas pressure in the grinding cylinder is synchronously reduced, so that the liquid level pressure of internal slurry is always in a stable state, slurry discharging and slurry feeding are conveniently carried out at the same time, continuous grinding is achieved, and the liquid level in the grinding cylinder can be higher than a center slurry discharging pipe; and the space utilization rate of the grinding cylinder is improved.

The invention discloses a preparation method of active nano kaolin powder. The preparation method comprises the following steps: drying kaolin concentrate; the dried kaolin concentrate is mixed with a chemical additive, the chemical additive comprises an intercalator and a surfactant, and the kaolin concentrate, the intercalator and the surfactant are mixed according to the mass ratio of 100: (5-60): (1-10); grinding the mixed kaolin and the chemical additive in a ball mill for 5-10 minutes, fully and uniformly mixing, transferring into ultrasonic or microwave, carrying out intercalation reaction for 1-3 hours, transferring the intercalated slurry into the sand mill again, carrying out superfine grinding for 10-60 minutes, washing the superfine ground slurry, and carrying out surface modification; carrying out centrifugal dewatering, drying and depolymerization on the modified material; the depolymerized powder is the active nano kaolin powder product; according to the preparation method, the nano kaolin is subjected to wet surface modification, so that agglomeration of nano particles in the drying process can be effectively reduced, and the dispersity of the nano kaolin is improved.

The invention relates to the technical field of piezoelectric ceramic forming, in particular to a preparation method of multilayer piezoelectric ceramic, which comprises the following steps: preparing slurry which comprises the following materials in percentage by mass: 50-80% of ceramic powder, 5-12% of acrylate latex, 1-2% of ammonium polyacrylate, 0.8-1.5% of sodium alginate and the balance of alcohol-water solvent, carrying out ball milling to obtain tape casting slurry, carrying out tape casting to obtain a single-layer blank film, carrying out gelation treatment, printing inner electrode slurry, drying, laminating, plastic discharging and sintering to obtain the multilayer piezoelectric ceramic; the preparation method comprises the following steps: carrying out tape casting on benzene-free system slurry to obtain a single-layer blank film, printing electrode slurry on one surface of the single-layer blank film, and carrying out lamination molding to obtain the multilayer piezoelectric ceramic containing the inner electrode; the thickness of a single-layer blank film is smaller than 10 microns, the bonding strength between the blank films is high, and the obtained multilayer piezoelectric ceramic has good piezoelectric performance.

The invention discloses a digital twinning monitoring and predicting method and system for a ball mill, and relates to the technical field of ball mills. According to the digital twinning monitoring and predicting method for the ball mill, a ball mill monitoring and predicting control framework based on the digital twinning technology is constructed. According to the principle, a high-fidelity virtual model which is synchronous with a physical ball mill in real time is established, key parameters are directly measured and predicted through the model, and advanced simulation and intelligent decision making are carried out on the basis. According to the digital twinborn monitoring and predicting method for the ball mill, digital twinborn bodies are driven to carry out high-fidelity real-time simulation by receiving multi-source sensor data and generating fusion feature vectors, early-stage and quantitative evaluation of the swelling risk is achieved by fusing digital twinborn body output, data prediction and expert rules, and when the risk exceeds the limit, the risk of the swelling risk can be accurately evaluated. And performing simulation optimization in the digital twinborn model by utilizing reinforcement learning, outputting an optimal collaborative regulation instruction and automatically executing the optimal collaborative regulation instruction, thereby ensuring safety.

The invention relates to the technical field of modified steel slag powder, and discloses a preparation method of modified steel slag powder applied to a cold-mixed full-steel-slag asphalt mixture, which comprises the following preparation steps: 1) stirring and mixing 80-90 parts by mass of steel slag, 10-20 parts by mass of waste slurry powder particles and 1-2 parts by mass of triethanolamine in a stirring drum to form a mixture; 2) grinding the mixture in a ball mill for a set time to form powder; 3) drying the powder in a dryer to obtain modified steel slag powder; through the preparation steps, the activity, the particle distribution uniformity, the compatibility with the emulsified asphalt and the chemical stability of the modified steel slag powder are remarkably improved, so that a higher-quality material choice is provided for the application of the cold-mixed full-steel-slag asphalt mixture.

The present invention discloses a preparation method and use of an Al2O3-Al composite packaging material, and the preparation method comprises the following steps: step A: uniformly mixing aluminum powder, aluminum oxide powder, CuO-TiO2 powder and ceramic particle additive powder to obtain a mixed raw material A; step B: adding a polyvinyl alcohol aqueous solution to the mixed raw material A and grinding it fully to obtain a mixed raw material B; step C: placing the mixed raw material B in a ball mill for ball milling, and obtaining a mixed raw material C after the ball milling is completed; step D: cold-pressing the mixed raw material C to obtain a prefabricated block; step E: placing the prefabricated block in a resistance furnace for sintering, and cooling it to room temperature with the furnace after the sintering is completed, to obtain an Al2O3-Al composite packaging material. The composite packaging material is used to encapsulate an aluminum-silicon alloy phase change heat storage material. The composite packaging material prepared by the present invention can be used to encapsulate an aluminum-silicon alloy phase change heat storage material, and has the advantages of good corrosion resistance and not easy to leak.

The invention provides an ore grinding method and system.The method comprises the steps that raw ore is crushed till the particle size of-0.074 mm accounts for 20-25%, and coarse ore sand is obtained; the method comprises the following steps: blending coarse ore sand and water into first grinding ore pulp, adding the first grinding ore pulp and a first ore grinding medium into a ball mill, and carrying out first-order ore grinding to obtain first ore pulp of which the particle size is 0.074 mm and the proportion is 45-50%; grading and sorting the first ore pulp, blending the first ore pulp with water to obtain second ground ore pulp, carrying out rotational flow sorting, adding the second ground ore pulp and a second ore grinding medium into the ball mill, carrying out second-order ore grinding, carrying out rotational flow sorting on the obtained ore pulp to obtain qualified ore pulp with the particle size of-0.074 mm being greater than 70%, crushing the raw ore into coarse ore sand, and carrying out second-stage ore grinding to obtain qualified ore pulp, according to the method, the spherical segment-shaped special-shaped ore grinding medium is adopted, the over-grinding yield of products can be effectively reduced, the raw ore is crushed in a two-stage ore grinding mode, the raw ore can be effectively crushed into the qualified particle size, the method has the characteristic that the ore grinding process is easy to control, and the treatment capacity is larger by adopting the two-stage ore grinding mode.

The invention provides a preparation method of a wear-resistant and strength-coordinated hard alloy product. The method comprises the following steps: (1) hard phase pretreatment: mixing tungsten carbide powder with a yttrium-stabilized zirconia precursor solution; (2) nano coating modification: placing the mixed material in a planetary ball mill for ball milling to obtain yttrium-stabilized zirconium oxide coated tungsten carbide composite powder; (3) preparing a binding phase; (4) mixing and pressing; (5) performing gradient sintering to obtain a sintered body; and (6) the sintered body is placed in a vacuum furnace to be subjected to aftertreatment, and the wear-resistant and strength-coordinated hard alloy product is obtained. Through multi-dimensional innovation of material proportion innovation, process optimization and equipment improvement, the technical problems of traditional hard alloy in the aspects of hardness and toughness balance, high-temperature performance stability, production cost control and the like are successfully solved, and a hard alloy solution which is excellent in performance and economical and feasible is provided for the field of high-end equipment manufacturing.

The utility model discloses a ball mill lining plate for preparing superfine powder, which comprises a lining plate bottom plate, the top surface of the lining plate bottom plate is a grinding working surface, the lining plate bottom plate is provided with at least two grinding working surfaces, each grinding working surface is an involute arc-shaped curved surface, each grinding working surface is provided with a grinding medium lifting flow guide strip, and the grinding medium lifting flow guide strips are arranged on the lining plate bottom plate. Reinforcing ribs are embedded in the lining plate bottom plate, and positioning through grooves and positioning strips are arranged on the two side faces, arranged in the axial direction of the ball mill, of the lining plate bottom plate correspondingly. Materials on the grinding working face make full contact with grinding media, grinding is carried out by making full use of sliding friction between the grinding media and the grinding working face, the grinding media lift the flow guide strips to promote self-circulation of the grinding media and the materials, the contact face with the grinding media is changed into line contact from point contact, the grinding area is increased, and the grinding efficiency is improved. And a positioning strip, a positioning through groove, a positioning pin and a positioning circular groove are arranged, so that the lining plate bottom can be quickly and accurately positioned and spliced.

The invention relates to a high-strength wear-resistant archaized brick and a preparation method thereof, and belongs to the technical field of archaized bricks, the high-strength wear-resistant archaized brick comprises the following raw materials: 25-30 parts of fly ash, 30-35 parts of superfine slag powder, 30-35 parts of clay, 8-10 parts of coke powder, 10-12 parts of diatomite, 12-15 parts of potassium feldspar, 10-15 parts of a modified binder and 8-12 parts of a reinforcing agent; according to the technical scheme, a polyhydroxy compound is combined with a silanization reinforcing filler, then combined with an anhydride compound and then combined with novolac epoxy resin, then an amine curing agent is added, and curing is conducted to obtain the modified binder; fly ash, superfine slag powder, clay and coke powder are subjected to ball milling, diatomite, potassium feldspar, a modified binder and a reinforcing agent are added, and the high-strength wear-resistant archaized brick is obtained through stirring, calcining and compression molding. The mechanical property, thermal stability and wear resistance of the archaized brick are improved on the whole, the densification degree of the archaized brick is enhanced, and the comprehensive performance is good.