1854results about "Ceramic materials production" patented technology

The invention discloses a method of preparing aluminum oxide-silicon carbide compound porous ceramic by aluminum-silicon industrial waste residues. The primary raw materials comprise industrial waste residues, carbon powder, a pore forming substance and an adhesive. The aluminum oxide-silicon carbide compound porous ceramic is prepared by the following steps of mixing, drying, forming and sintering to obtain a final product. Treatment and high additional value utilization of the industrial waste residues are achieved. The prepared porous ceramic is remarkable in performance, and can be applied to the fields of filtration, sound isolation, heat isolation, fire fighting and the like. The method is simple in process flow and convenient for industrialized promotion; and the cost is good to control and the method has extreme economical value.

The invention relates to the technical field of ceramic clay, in particular to wear-resistant ceramic clay and a preparation method thereof.The wear-resistant ceramic clay is prepared from, by weight, 35-40 parts of kieselguhr, 15-20 parts of silicon carbide, 8-12 parts of modifier based on mullite modification, 5-8 parts of modified cordierite agent, 4-7 parts of aluminum oxide, 4-7 parts of calcined talc, 3-5 parts of potassium feldspar and 30-35 parts of water. According to the wear-resistant ceramic clay disclosed by the invention, the diatomite and the silicon carbide are matched with the aluminum oxide, the calcined talc and the potassium feldspar, and the modifier based on mullite modification and the modified cordierite agent are added, so that the wear resistance, the stain resistance and the heat-conducting property of the obtained ceramic clay are coordinated and improved through co-blending and matching of the raw materials and mutual enhancement and improvement of the raw materials; meanwhile, the product is remarkable in anti-damage stability effect.

The invention relates to the technical field of ceramics, in particular to a preparation method of a heat-resistant ceramic marmite. The heat-resistant ceramic marmite is composed of a green body and a glaze surface, and the green body is prepared from, by weight, 30-35 parts of fused quartz, 8-10 parts of petalite, 9-11 parts of kaolin, 19-21 parts of washed illite clay, 5-7 parts of sepiolite, 5-6 parts of andalusite, 7-9 parts of coal gangue, 0.2-0.7 part of zinc spinel and 2-3 parts of talc; the glaze surface is prepared from the following raw materials in parts by weight: 18 to 20 parts of fused quartz, 14 to 16 parts of petalite, 12 to 14 parts of kaolin, 5 to 6 parts of calcium oxide, 1.5 to 2 parts of zinc oxide, 1 to 1.5 parts of strontium oxide, 8 to 10 parts of spodumene, 0.6 to 0.8 part of lanthanum oxide, 8 to 10 parts of ZrSiO4 coated Al2O3 and 1.2 to 1.8 parts of pigment. The prepared ceramic marmite has the advantages of matt appearance, higher thermal stability, low water absorption rate and excellent comprehensive performance, and is not easy to crack and wear.

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 field of building materials, and discloses a multifunctional foamed ceramic sound insulation and heat preservation material for buildings. Comprising the following raw materials in parts by weight: 42 to 48 parts of pottery clay tailings, 14 to 16 parts of fly ash, 10.5 to 12 parts of crushed stone materials, 2.8 to 3.2 parts of a silicon carbide foaming agent, 0.7 to 0.8 part of a borax fluxing agent, 7 to 8 parts of paraffin / silicon dioxide phase change microcapsules, 0.5 to 1.0 part of graphene, 2.0 to 2.5 parts of nano iron powder, 0.05 to 0.5 part of nano silver, 1.0 to 1.5 parts of photocatalytic titanium dioxide and 0.3 to 0.4 part of a fluorosilane coupling agent. A stable matrix structure is constructed through the argil tailings, the fly ash and the crushed stone materials, the silicon carbide foaming agent and the borax fluxing agent reduce the heat conductivity coefficient, the sound insulation performance is improved, the material is endowed with the antibacterial ability through nano-silver and photocatalytic titanium dioxide, indoor sanitation is guaranteed, and a super-hydrophobic layer is constructed through the fluorosilane coupling agent.

The invention relates to the technical field of solid waste recycling, in particular to a method for preparing ceramsite through multi-element solid waste co-treatment. The method comprises the following steps: S1, uniformly stirring and mixing waterworks sludge, washing-free waste incineration fly ash, polluted soil and iron tailing slag powder in proportion to obtain a stirred mixture; s2, directly putting the stirred mixture which is uniformly mixed and is in a wet state into a ceramsite drying and granulating kiln, and granulating in the kiln to obtain raw material balls; s3, the raw material balls enter a pyrolysis section in the kiln to be subjected to low-temperature pyrolysis treatment; s4, the pyrolyzed raw material balls enter a calcining kiln to be subjected to high-temperature sintering treatment; and S5, passing the obtained sample through a cooling kiln, and taking out the cooled sample to obtain the multi-element solid waste ceramsite. According to the method, pure solid waste is adopted for preparing the ceramsite, and the links of raw material drying and granulation in traditional ceramsite manufacturing are omitted. The sludge of the waterworks, the waste incineration fly ash, the polluted soil and the iron tailing slag are utilized in a high-valued manner, the energy consumption is low, and less secondary environmental pollutants are generated.

The invention provides a high-temperature-resistant magnesia-carbon composite refractory brick and a preparation method thereof, and belongs to the technical field of magnesium oxide refractory wall bricks, the refractory brick comprises the following raw materials: double-layer modified magnesium oxide, modified crystalline flake graphite, zircon powder, modified liquid phenolic resin and a benzoxazine cross-linking agent; the double-layer modified magnesium oxide is obtained by firstly coating magnesium oxide with powder phenolic resin, aluminum oxide and zirconium oxide and then coating magnesium oxide with asphalt, micron magnesium oxide, zirconium oxide and calcium oxide; the modified crystalline flake graphite is obtained by coating crystalline flake graphite with strontium hydroxide, asphalt and boron carbide; the modified liquid phenolic resin is formed by mixing liquid phenolic resin with a silane coupling agent and a polyacrylate cross-linked polymer. Double-layer modified magnesium oxide, modified crystalline flake graphite and modified liquid phenolic resin are prepared by adopting special components and a method and are matched with zircon powder and a benzoxazine cross-linking agent for use, and a reasonable forming and sintering process is designed, so that the refractory brick has good high-temperature stability, oxidation resistance, thermal shock resistance and the like.

The invention belongs to the technical field of building materials, and particularly relates to a preparation method of a high-strength sintered tile. The preparation method of the high-strength sintered tile comprises the following steps: (1) crushing green body raw materials, sieving, adding water, carrying out ball milling, and carrying out spray drying to obtain powder; (2) performing compression molding on the powder obtained in the step (1) to obtain a green body; drying the green body to obtain a tile blank; (3) coating the tile blank obtained in the step (2) with glaze, and drying to obtain a glazed tile blank; and sintering the glazed tile blank, and then cooling to room temperature to obtain the ceramic tile. The high-strength sintered tile obtained by the preparation method is high in bending strength, high in thermal stability, low in water absorption and good in freezing resistance, and has a wide application prospect.

The invention relates to the technical field of architectural ceramics, and discloses an antifouling matte archaized brick with antiskid performance and a preparation method thereof, the preparation method comprises the following steps: A, preparing a green body layer; b, applying ground glaze to the surface of the green body layer; c, applying anti-skid and anti-fouling matte glaze to the surface of the ground coat layer; d, firing in a kiln after drying; the anti-slip and anti-fouling matte glaze comprises anti-fouling matte glaze, anti-fouling wear-resistant dry particles and anti-slip dry particles, the anti-fouling wear-resistant dry particles are composed of particles with the mesh number larger than or equal to 200 and smaller than 250 and particles with the mesh number ranging from 250 to 325, and the anti-slip dry particles are composed of particles with the mesh number larger than or equal to 150 and smaller than 160, particles with the mesh number larger than or equal to 160 and smaller than 200, particles with the mesh number larger than or equal to 200 and smaller than 250 and particles with the mesh number ranging from 250 to 325. According to the antifouling matte archaized brick with the anti-skid performance, the glossiness, the antifouling performance, the hardness, the abrasion resistance, the color development performance and the anti-skid performance can be considered at the same time under the existing firing condition, and the use satisfaction degree of consumers on the archaized brick is improved.

The invention relates to the technical field, in particular to an ultralight foamed ceramic hollow sphere prepared from iron lepidolite tailings and a preparation method and application of the ultralight foamed ceramic hollow sphere. The foamed ceramic hollow sphere is prepared from the following raw materials: iron lepidolite tailings, silicon carbide, bentonite, sodium carbonate and potassium carbonate; in percentage by mass, the content of the iron lepidolite tailings is 90 to 96.4 percent; the content of the silicon carbide is 0.1-1%; the iron lepidolite tailings are prepared from the following components in percentage by mass: 77 to 80 percent of SiO2, 10 to 13 percent of Al2O3, 1.3 to 1.6 percent of Fe2O3 and 0.1 to 0.17 percent of Li2O. The ultralight foamed ceramic hollow sphere is prepared by using the iron lepidolite tailings, the silicon carbide, the bentonite, the sodium carbonate and the potassium carbonate as raw materials, can meet various market requirements of heat preservation, heat insulation, sound insulation, noise reduction and the like, and brings remarkable economic benefits and social benefits.

The invention relates to the field of new materials, and discloses a red mud-based ceramic flat sheet membrane and a preparation method thereof. The red mud-based ceramic flat sheet membrane comprises a substrate and a separation layer integrally attached to the surface of the substrate, the matrix is prepared from the following raw materials in parts by weight: 2000 to 4000 parts of Al2O3 powder with the average particle size of 5000nm, 200 to 350 parts of corn starch, 300 to 500 parts of red mud, 400 to 600 parts of kaolin and 2 to 8 parts of polyvinyl alcohol; the separation layer is prepared from the following raw materials in parts by weight: 4-10 parts of Al2O3 powder with the average particle size of 5000nm, 1-3 parts of a dispersing agent, 0.1-0.3 part of a defoaming agent and 1-3 parts of polyvinyl alcohol. The red-mud-based ceramic flat sheet membrane has good physical properties, the preparation method is scientific and reasonable, and the red-mud-based ceramic flat sheet membrane has the characteristics of short production period, low raw material and sintering cost and the like.

This application relates to the technical field of firing ceramsite, and specifically discloses a coal gangue-based water-retaining ceramsite, its preparation method and application. The preparation method of the coal gangue-based ceramsite disclosed in this application is as follows: Drying: The green balls of ceramsite are fed into the drying section, and the hot air from the decarbonization section is cooled and then sent to the drying section to dry the green balls; The green balls of ceramsite are prepared by uniformly mixing coal gangue raw materials and modified silica sol and then calcined. Pyrolysis: The hot air generated from the decarbonization section is heated to 350-400 °C and then introduced into the pyrolysis section to pyrolyze the green balls. Decarbonization: The hot air from the pyrolysis section and the cooling section heats and supports combustion of the material layer in the decarbonization section to complete the decarbonization of the ceramsite. Cooling: The decarbonized ceramsite is cooled by blowing air. Using the technical solution of this application, the processing scale of coal gangue ceramsite can be increased, the energy utilization of coal gangue itself can be maximized, the production cost can be effectively reduced, and the ceramsite can meet the requirements of decarbonization, water retention and strength.

The invention discloses a disc-shaped suspension type porcelain insulator processing device, and relates to the field of disc-shaped suspension type porcelain insulator processing, and the disc-shaped suspension type porcelain insulator processing device comprises a workbench, the top end of the workbench is rotatably connected with a supporting shaft, the outer side of the supporting shaft is fixedly provided with a first rotating disc and a second rotating disc, and the second rotating disc is arranged above the first rotating disc. A first electric push rod is fixed to the edge of the top end of the first rotating disc, a supporting disc is fixed to the top end of the first electric push rod, a fixing groove is formed in the edge of the second rotating disc, pug enters the position between the supporting disc and the upper mold, the pug can be stored in the forming groove, and a rough insulator-shaped pug blank is formed; due to the fact that the electric heating wires are arranged in the upper mold and the supporting disc, an insulator-shaped mud blank can be heated through a sealed environment, on one hand, the mud blank can be preliminarily dried through drying, an insulator can be shaped, and on the other hand, adhesion between the outer side of the mud blank and the upper mold and between the outer side of the mud blank and the supporting disc can be avoided through heating, so that mud blank demolding is easier.

The invention discloses a blue-and-white glaze and a preparation method and application thereof, and belongs to the technical field of inorganic non-metallic materials (ceramics), the blue-and-white glaze comprises quartz, feldspar, limestone, plant ash and other basic raw materials, zinc oxide, aluminum oxide, lanthanum oxide, cerium oxide and other rare earth elements, and a modified organic additive is introduced. Compared with the prior art, the blue-and-white glaze shows excellent stability in the drying and firing process, the phenomena of cracking and glaze stripping are effectively reduced, the friction coefficient after firing is low, the breaking strength and the breaking modulus are high, the glossiness and transparency of a glaze surface are remarkably improved, and the blue-and-white glaze has important application value.

The invention discloses a honeycomb ceramic and a preparation method thereof.A composite additive is added into a mixed ceramic raw material, the weight ratio of the mixed ceramic raw material to the composite additive is (30-50): (50-70), and the composite additive comprises 30-54 parts of flaky aluminum oxide, 2-10 parts of nano zinc oxide and 1-5 parts of metal molybdenum particles; the preparation method comprises the steps of ball milling, kneading, refining, extrusion forming, drying and sintering. According to the invention, the raw material formula is optimized, and bauxite is replaced by flaky alumina; beneficial additives, namely nano zinc oxide and metal molybdenum particles, are doped; an original extrusion molding device is used for achieving a layered structure of flaky aluminum oxide, and therefore the shell-imitating pearl layer structure with the layered aluminum oxide as bricks, the metal molybdenum particles as mud and the zinc-aluminum spinel particles as protrusions is built.

The present invention discloses a sludge shaftless screw conveyor for treating and recycling ceramsite from sludge, which relates to the technical field of sludge treatment. It includes a housing and a scraping assembly. One side of the housing is fixed with a motor, and the output shaft of the motor is connected with a screw blade. The scraping assembly is arranged outside one end of the screw blade. When it is necessary to clean the shaftless screw blade in the present invention, only need to start the motor to make the screw blade rotate. At this time, since the first scraper and the second scraper are respectively attached to both sides of the screw blade, the surface of the screw blade can be scraped and cleaned. Moreover, the connecting column can also block the gap formed between the first scraper and the second scraper to prevent residues from passing through. At the same time, the height of the top plate is positioned by using the sliding seat, the sliding rail, the connecting plate and the adjusting assembly, so as to avoid the vertical sliding of the first scraper. Therefore, when the screw blade rotates, it will also push the first scraper to move, so as to comprehensively clean the outside of the screw blade.

The invention discloses double-layer fancy glaze with chapped ground texture and a preparation method of the double-layer fancy glaze, and relates to the technical field of ceramic glaze. The double-layer fancy glaze is composed of a ground glaze layer and a cover glaze layer. The ground glaze raw materials comprise potassium feldspar, kaolin, calcite, quartz, dolomite, zinc oxide and pigment; the cover glaze raw materials comprise potassium feldspar, waste porcelain powder, blank powder, chinastone, limestone, sepiolite, quartz, zirconium silicate with the particle size D50 being less than or equal to 1.0 mu m and pigment. The preparation method comprises the following steps: respectively carrying out ball milling to prepare ground glaze slip (32-40 baume degrees) and cover glaze slip (51-53 baume degrees); spraying ground glaze on the green body, drying, and then soaking with cover glaze; and finally, sintering at the temperature of 1250-1270 DEG C in a reducing atmosphere. Through the synergistic effect of the sepiolite and other components, the cover glaze has high surface tension, forms a microcrack network during drying, generates controllable glaze shrinkage during firing, forms a three-dimensional chap texture with crack width of 1-5mm and strong curled and raised crack edges, and meanwhile, the ground glaze completely covers a green body, so that the product practicability is ensured.

The invention relates to the technical field of ceramic materials, in particular to high-corrosion-resistance environment-friendly ceramic and a preparation method of the high-corrosion-resistance environment-friendly ceramic. 20 to 22 percent of Al2O3; 4 to 6 percent of Fe2O3; 2.0 to 3.5 percent of CaO; 0.5 to 1.0 percent of MgO; 0.8% to 1.2% of K2O and Na2O; sO3: less than or equal to 0.03%; pb + Cd + Cr < 6 + >: < = 2 ppm; the balance is impurities. According to the scheme, the craft ceramic can be prepared from the tailings, meanwhile, residues such as the heavy metal content are strictly controlled, components are controlled to be stable, and therefore unification of high corrosion resistance and environmental friendliness is achieved.

This application relates to the field of ceramsite, and specifically discloses a preparation process for two-stage water-retaining ceramsite from coal gangue. The preparation process includes green pellet preparation, drying section, pyrolysis section, decarbonization section, first roasting section, soaking section, second roasting section, and cooling section; the green pellet preparation includes: wetting coal gangue powder with an organic solution, stirring evenly, and kneading with biomass material. The mass ratio of coal gangue powder to biomass material is 1 kg:(3-9) g to obtain green pellets; the soaking section includes: transferring the green pellets after the first roasting section to the soaking section, with the material layer temperature below 900 °C, and evenly spraying nano-silica during the transfer process, spraying 1-2.5 g per 100 g of green pellets; the cooling section includes: using one of sodium bicarbonate solution, ammonium bicarbonate, and ammonia water to form a water mist mixed with air to cool the roasted ceramsite. The prepared ceramsite has a rich and gradient pore structure, can quickly absorb water, and has excellent water-retaining performance.

The invention discloses environment-friendly ceramic and a preparation method thereof, and belongs to the technical field of ceramic. The environment-friendly ceramic comprises the following raw materials in parts by weight: 30-50 parts of red mud, 20-40 parts of fly ash, 10-25 parts of purple clay, 5-15 parts of quartz, 3-8 parts of a composite binder, 3-8 parts of a composite fluxing agent and 40-50 parts of deionized water. The environment-friendly ceramic prepared by the method disclosed by the invention has excellent breaking strength and apparent porosity.

The invention relates to the technical field of ceramic production, and discloses a high-temperature hard glaze formula for bone china and a bone china production process. 4%-6% of aluminum oxide; 2%-5% of boron oxide; 3%-7% of zinc oxide; 3%-10% of an alkaline earth metal oxide; 7%-13% of alkali metal oxide; 0.5%-2% of zirconium oxide; and 0.5%-1.5% of titanium dioxide. According to the high-temperature hard glaze formula for the bone china and the bone china production process, a proper amount of boric oxide, zinc oxide and lithium oxide are added into the glaze, so that the thermal expansion coefficient of the glaze is effectively reduced, and the thermal stability of the bone china is improved; by adding aluminum oxide, the breaking strength of the bone china can be greatly improved; by adopting a lead-free formula, lead pollution is avoided, and the environment-friendly requirement is met; through the optimized glaze formula and process, the bone china surface has good glossiness and smoothness.

The invention belongs to the field of ceramic building decoration materials, and discloses a silk matte recarved marble tile and a preparation method thereof. The silk matte recarved marble tile sequentially comprises a green body layer, a cover glaze layer, a pattern layer, a recarved marble texture layer and a silk glaze layer, the recarved marble texture layer is formed by printing functional ink, and the functional ink comprises a matte frit and a water repellent agent; the silk glaze layer is formed by water-based silk glaze. The silky matte reengraved marble tile provided by the invention has the concave three-dimensional texture of highly reducing and reengraved natural marble detail cracks, has silky smooth and heavy touch feeling, has better wear resistance and antifouling property, is comparable with the three-dimensional texture of natural marble, and can meet higher aesthetic and consumer demands of consumers. The preparation method of the silk matte recarved marble tile is simple and efficient, and the prepared finished product is good in stability and suitable for large-scale industrial production.

The invention relates to the technical field of fired ceramsite, and particularly discloses high-strength ceramsite prepared from coal gangue as well as a preparation method and application of the high-strength ceramsite. The invention discloses a preparation method for preparing ceramic particles from coal gangue. The preparation method comprises the following steps: drying; performing pyrolysis; decarburization: carrying out heating combustion-supporting on a material layer from top to bottom by hot air with the temperature of 450-600 DEG C from the pyrolysis section and the cooling section in the decarburization section, and completing decarburization of the ceramsite from top to bottom; hot air from the cooling section is subjected to heat compensation and temperature rise to heat ceramsite, the temperature of a ceramsite material layer is 1000-1140 DEG C, and the ceramsite material layer is subjected to heating combustion supporting from top to bottom; and cooling: cooling the roasted ceramsite to 80-100 DEG C. By means of the technical scheme, the treatment scale of the coal gangue ceramsite can be increased, the production cost is effectively reduced, and the ceramsite meets the requirements for decarburization, low water absorption and high strength.

The present invention relates to the technical field of refractory brick production, and in particular to a raw material quantitative mixing device for refractory brick processing, comprising a mixing tank and a mixing mechanism arranged in the mixing tank for stirring the refractory brick raw materials, a discharging frame is fixedly connected to the top of the mixing tank, a metering cylinder is fixedly connected to the top of the discharging frame, a discharging mechanism for quantitatively discharging the raw materials in the metering cylinder is arranged in the discharging frame, an upper cylinder is fixedly connected to the center position inside the metering cylinder, four partitions are fixedly connected equidistantly between the inner side of the metering cylinder and the upper cylinder, arc-shaped discharging ports are opened at the bottom end of the metering cylinder and between the four partitions, adjustment plates are arranged on the side walls of the four partitions, and four lower cylinders are rotatably connected to the inner side of the upper cylinder. Through the arrangement of the above-mentioned structure, the present invention can quickly and flexibly adjust the storage space of the metering cylinder on the mixing tank according to the demand for increasing the quantity of raw materials for refractory brick production, can meet the production needs of refractory bricks with different performances, and greatly improve the convenience performance of the device.

The invention discloses a ceramic tile with a gold decoration effect and a preparation method thereof, and belongs to the field of building material preparation, the ceramic tile comprises a tile blank, a ground glaze layer, an ink jet layer, a composite glaze layer and a polishing glaze layer which are sequentially arranged, a groove is formed in the surface of the composite glaze layer through a fine carving technology, the groove is internally coated with a bright material, and after the polishing glaze layer is formed, the bright material is sprayed on the tile blank. And the groove is filled with a gold decorative effect material. By optimizing the light material and the gold decorative effect material, a synergistic effect is achieved, the decorative effect, decorative aesthetic feeling and experience feeling of the gold effect are good, and in combination with the polishing glaze, the ceramic tile has better corrosion resistance and antifouling performance on the whole, the tile surface is smooth and fine, and the ceramic tile has excellent ornamental value and artistic quality.

The invention belongs to the technical field of ceramic materials, and particularly relates to a high-strength building ceramic material and a preparation method thereof. The high-strength building ceramic material is prepared from the following raw materials in parts by weight: 20 to 30 parts of potassium feldspar, 15 to 23 parts of kaolin, 37 to 45 parts of solid waste-based silicon carbide, 1 to 4 parts of talc, 3 to 8 parts of modified mullite whisker and 2 to 5 parts of filler, a preparation process of the modified mullite crystal whiskers comprises the following steps: (1) adding mullite crystal whiskers into an ethanol water solution containing a silane coupling agent, and heating for reaction to obtain pretreated mullite crystal whiskers; and (2) adding the mullite whiskers pretreated in the step (1) into a nickel sulfate aqueous solution, then adding triethylamine and sodium thiosulfate, and carrying out a heating reaction to obtain the modified mullite whiskers. After the raw material components are combined, preparation of a high-strength ceramic material is facilitated, the heat conductivity coefficient can be increased, the heat conduction effect can be enhanced, and the ceramic material is suitable for common home decoration and high-heat-conductivity floor heating ceramic tiles.

The invention relates to the technical field of fracturing propping agents, in particular to a method for preparing a ceramsite sand fracturing propping agent by taking asbestos ore as a raw material. The ceramsite sand fracturing propping agent comprises inner core particles and an outer layer covering film, wherein the inner core particles comprise the following components in parts by weight: 25-35 parts of asbestos ore, 40-50 parts of bauxite, 10-20 parts of solid waste ceramsite sand, 1-3 parts of a sintering aid, 15-25 parts of potassium feldspar, 3-8 parts of dolomite, 8-12 parts of kaolin, 1-2 parts of titanium oxide and 0.5-1.5 parts of manganese powder; and the outer-layer covering film is modified epoxy resin. The ceramsite sand fracturing propping agent prepared by the invention not only has excellent mechanical property and high flow conductivity, but also has excellent hydrophobic property, so that the service life of the ceramsite sand fracturing propping agent is prolonged.

The invention relates to the technical field of architectural ceramics, in particular to a gangue-doped ceramic tile and a preparation method thereof.The gangue-doped ceramic tile comprises a green body layer, a ground coat layer, a decorative layer and a glazed layer which are sequentially arranged from bottom to top; the green body layer is prepared from the following raw materials in percentage by mass: 6 to 12 percent of bentonite, 1 to 5 percent of Qingshan soil, 3 to 6 percent of polishing mud, 6 to 12 percent of waste brick powder, 4 to 8 percent of green gangue, 5 to 15 percent of chinastone, 20 to 30 percent of feldspar, 1 to 3 percent of recycled blank material, 2 to 5 percent of snail mountain soil, 8 to 15 percent of sandstone, 3 to 6 percent of washed white mud, 5 to 15 percent of coal gangue and 2 to 5 percent of grey gangue; the chemical components of the polishing mud, the waste brick powder, the recycled blank material and the coal gangue respectively comprise SiO2, Al2O3, Fe2O3, TiO2, CaO, MgO, K2O and Na2O. According to the gangue-doped ceramic tile and the preparation method thereof, the raw materials of the green body layer are improved, so that the firing temperature is reduced, the firing period is shortened, low-temperature fast firing is realized, and meanwhile, the production cost is low, the antifouling property is excellent, and the strength is high.

The present application relates to the field of ceramsite, and specifically discloses a method for preparing binary ceramsite using coal gangue and the obtained ceramsite. The method comprises the following steps: preparing the core: fully mixing carbon-free industrial waste slag with calcium phosphate solution at a ratio of 1kg: (0.4-0.8)L, pressurizing, and then granulating to obtain green balls, and uniformly spraying a binding solution on the surface of the green balls to obtain the core; preparing the coating material: fully mixing coal gangue with sodium alginate solution at a ratio of 1kg: (0.2-0.5)L to obtain the coating material; overmolding: uniformly coating the core with the coating material to form a binary green ball, wherein 0.15 < d / D < 0.75, d is the green ball diameter, and D is the binary green ball diameter; preparing the ceramsite: drying, pyrolyzing, decarbonizing, sintering, and cooling the binary green balls to form binary ceramsite. The obtained ceramsite product not only has no black core, excellent strength, but also good water absorption.

The invention discloses a foam particle reinforcement-based lightweight Dehua white porcelain sculpture and a preparation process thereof, and relates to the field of ceramics, the foam particle reinforcement-based lightweight Dehua white porcelain sculpture comprises white porcelain slurry and thermoplastic foam particles with closed pore structures, the matrix raw materials comprise the following raw materials in parts by weight: 60-70 parts of Dehua kaolin, 20-25 parts of quartz and 10-15 parts of feldspar, the water content of the white porcelain slurry is 25-30%, the volume ratio of the thermoplastic foam particles to the white porcelain slurry is 1: (0.2-0.5), and the thermoplastic foam particles are polystyrene or polyurethane particles. The oriented microporous structure is formed by the thermoplastic foam particles, so that the density of the white porcelain sculpture finished product is reduced to 1.2-1.8 g / cm < 3 >, the weight is reduced by 30-50% compared with the traditional white porcelain sculpture finished product, and the weight and the transportation and installation cost of the white porcelain sculpture finished product are greatly reduced.