77 results about "Grog" patented technology

The invention belongs to the field of manufacturing of refractory materials for glass brick kilns, and particularly relates to a vertical casting process and device for an electric smelting AZS shrinkage-cavity-free pool wall brick. The vertical casting process for the electric smelting AZS shrinkage-cavity-free pool wall brick comprises the following steps that aluminum oxide, zircon sand, desilicated zirconium, sodium carbonate and AZS clinker are added into an electric furnace to be smelted into feed liquid; after melting is completed, the electric furnace is inclined, feed liquid flows into the feed liquid storage area from the hearth through the furnace nozzle flow guide area and then vertically flows into the quartz sand mold through the lower flow opening, and therefore vertical casting of the feed liquid is achieved. According to the vertical casting process for the electrically-fused AZS shrinkage-cavity-free pool wall brick, air holes in the surface of the AZS electrically-fused brick can be effectively reduced, the machining amount is reduced, the machining efficiency is improved, and the manufacturing cost is reduced; the invention also provides a device used by the method.

This invention relates to a long-life aluminosilicate refractory material for glass kilns, belonging to the technical field of refractory materials. The long-life aluminosilicate refractory material for glass kilns of this invention comprises, by weight percentage: 50-75 wt% bauxite clinker, with an Al2O3 content ≥85 wt%; 15-30 wt% silicon carbide powder, with a SiC content ≥98 wt%; 3-10 wt% boron nitride micropowder, with a BN content ≥99 wt%; and 2-10 wt% albite. The additives are sodium carboxymethyl cellulose and aluminum orthophosphate sol, with the sodium carboxymethyl cellulose used at 0.3-0.8 wt% of the total raw material weight, and the aluminum orthophosphate sol used at 3-6 wt% of the total raw material weight. The refractory material is fired under a nitrogen atmosphere. This long-life aluminosilicate refractory material for glass kilns breaks through the performance limits of traditional aluminosilicate refractory materials, providing key material support for the green and low-carbon development of the glass industry.

The invention relates to the field of ultrahigh-temperature ceramic materials, and discloses rare earth element doped quinary high-entropy boride powder and a preparation method thereof. The preparation method of the rare earth element doped quinary high-entropy boride powder comprises the following steps: 1) taking metal oxide powder, boron carbide powder and graphite powder as raw materials, and performing wet mixing to prepare mixed powder, 2) briquetting the mixed powder to prepare a green body, putting the green body into a high-temperature carbon tube furnace into which protective gas is introduced, heating, and carrying out pressureless sintering to obtain clinker; and 3) grinding the clinker to obtain the rare earth element doped high-entropy boride powder. The rare earth element doped quinary high-entropy boride powder prepared by the method has the advantages of high purity, no impurity phase, uniform metal element distribution and high rare earth element content, the preparation process is simple, the cost is low, the reaction temperature is lower, and large-scale production is facilitated.

The invention provides a preparation process of a high-performance refractory material based on regulation and control of a dolomite crystal form. The preparation process specifically comprises the following steps: step 1, weighing raw materials; step 2, pre-sintering the raw materials: respectively putting the weighed corundum, dolomite, quartz sand and mullite into a high-temperature furnace for high-temperature pre-sintering at the high-temperature pre-sintering temperature of 500-600 DEG C, heating and pre-sintering for 15-25 minutes, then taking out, and placing the pre-sintered corundum, dolomite, quartz sand and mullite clinker for later use; when the device is used, raw materials are pushed by the spiral auger to flow in the conveying holes from bottom to top, the thickness between the raw materials is reduced when the materials flow in the conveying holes, and the raw materials are matched with the heating columns on the inner walls of the conveying holes to achieve rapid temperature rising and heating; and the raw materials are pushed by the spiral auger to move upwards to the top of the fixed barrel to be stirred and mixed again.

This invention belongs to the field of inorganic non-metallic materials technology, and specifically relates to a low-carbon, high-iron sulfoaluminate cementitious material based on steel slag solid waste. It comprises the following raw materials in parts by weight: limestone 35-55 parts, anhydrite 10-20 parts, bauxite 20-45 parts, modified steel slag A 8-15 parts, and modified steel slag B 5-10 parts. Modified steel slag A is activated by acid / alkali, doped with calcium fluoride / sodium sulfate / titanium dioxide and calcined, and then in-situ co-precipitated to introduce magnesium aluminum spinel nanocrystals. This is used for raw material calcination, which can reduce the calcination temperature, refine the clinker grains, and improve early strength. Modified steel slag B is activated by acid / alkali, doped and calcined, and coated with silane coupling agent / polyvinyl alcohol / silica ball milling. It is incorporated as a blending material to improve the interface, slow-release hydration, and improve later-stage strength. This invention achieves high-value utilization of steel slag through synergistic modification, and the cementitious material has advantages such as low carbon content, early and high strength, suitable setting time, and excellent stability.

The invention belongs to the field of ceramsite proppant calcination, and particularly relates to a preheating calcination method of a ceramsite proppant. Comprising the following steps: S11, carrying out heat exchange on water-containing ceramsite raw material balls and first waste gas from a rotary kiln in a preheater to obtain a preheated semi-finished product; s12, the preheated semi-finished product is fed into the rotary kiln to be calcined, and ceramsite proppant clinker is obtained; and step S13, carrying out quenching treatment on the ceramsite proppant clinker to obtain a ceramsite proppant finished product. Wherein the first waste gas is flue gas generated in the calcining process of the rotary kiln. Therefore, the problem that waste gas discharged from the kiln tail of an existing rotary kiln carries a large amount of heat energy and cannot be fully utilized is solved.

This invention provides an M5Si3 type high-entropy aluminum silicide ceramic material, its preparation method, and its applications, belonging to the field of high-entropy ceramic technology. The invention involves mixing elemental metal powder, aluminum powder, and silicon powder, followed by wet ball milling to obtain a mixed powder. The mixed powder is then pressed into a green body and flash-sintered to obtain an M5Si3 type high-entropy aluminum silicide clinker. This clinker is further pressed into a green body and then spark-plasma sintered to obtain the M5Si3 type high-entropy aluminum silicide ceramic. The M5Si3 type high-entropy aluminum silicide ceramic of this invention exhibits excellent resistance to prolonged high-temperature oxidation at 2400 °C. Furthermore, its preparation method is simple in operation and process flow, has good reproducibility, and a short reaction time, making it suitable for component control and large-scale industrial production. It has a very broad application prospect in the field of hot-end structure protection for hypersonic vehicles.

The invention relates to the technical field of stemming refractory materials, and discloses an expansion iron mouth type anhydrous stemming for a blast furnace of more than 2000 cubic meters. The expansion iron mouth type anhydrous stemming comprises the following components in percentage by mass: 3-4% of high-temperature asphalt particles, 13-20% of ferro-silicon nitride, 10-13% of clay, 0.5-2% of carbon black, 3-5% of pyrophyllite, 31-39% of alumina clinker, 13-18% of silicon carbide, 5-7% of coke powder, 1-3% of polyethylene glycol and 12-13% of tar. According to the method, polyethylene glycol 200 is used as a binding agent, the characteristic that the polyethylene glycol 200 forms curing strength at 250-350 DEG C is utilized, the polyethylene glycol 200 and beta resin in high-temperature asphalt powder complete temperature relay to form carbon coke, a balling drum is rapidly stabilized within 15-30 minutes of gun pressing, and the iron notch depth is increased; according to the invention, the problem of strength of the stemming at 250-350 DEG C is effectively solved, good opening strength and enough iron notch depth are realized, the application effect on 2650 m < 3 > and 4000 m < 3 > blast furnaces is good, and the iron notch depth is respectively prolonged by 0.2 m and 0.4 m.

This invention relates to a method and system for the combined processing of Bayer process red mud and low-grade bauxite. The method includes: separately detecting the aluminum and silicon content in the red mud and bauxite, mixing the red mud and bauxite according to the detection results to achieve an aluminum-to-silicon ratio greater than 1 in the resulting raw material, adding a calcination aid, and calcining to obtain clinker. The clinker undergoes multiple cycles of water leaching and primary desilication treatment until the aluminum-to-silicon ratio in the solution is greater than 300 and the vanadium content reaches 2 g / L, at which point deep desilication is performed. The deep desilication solution is then carbonated to extract aluminum. Ammonium salts are added to the resulting solution to further extract vanadium. The final solution is crystallized and used as a calcination aid. The water leaching residue from the water leaching treatment is acid-leached, aged, and hydrolyzed to polymerize, yielding calcium sulfate, silica gel, and a water purification agent, respectively. This invention effectively utilizes both major and rare elements, solving the problems of red mud accumulation and the ineffective utilization of low-grade bauxite.

The invention provides a high-strength heat-insulating castable for a furnace top of an aluminum melting furnace and a preparation process of the high-strength heat-insulating castable, and belongs to the technical field of refractory materials for the aluminum melting furnace. The refractory castable product is prepared from the following raw materials: medium-low-density alumina clinker with the particle size of 8-1mm and the volume density of 1.50-2.60 g / cm < 3 >, high-alumina bauxite with the particle size of 1-0.088 mm and less than or equal to 0.074 mm, aluminum oxide micro powder with the particle size of less than or equal to 5mu m, silicon dioxide micro powder with the particle size of less than or equal to 2mu m, a sintering aid, an explosion-proof agent, a reinforcing agent, a water reducing agent and a binding agent. According to the invention, the middle-low density alumina clinker is selected as a main raw material, and the anti-explosion agent and the reinforcing agent are supplemented, so that the prepared castable has the breaking strength of 18-31 MPa at the high temperature of 1200 DEG C and the heat conductivity coefficient of 0.20-0.40 W / (m.K).

The invention relates to a construction binder comprising: - 35% to 65% by weight of clinker, - 5% to 30% by weight of a calcined clay matrix, - 5% to 30% by weight of a raw clay matrix, and - 0.05% to 5% by weight of a deflocculating agent; and the mass ratio of the raw clay matrix to the calcined clay matrix is ​​0.2 to 7. The invention further relates to a construction material comprising a construction binder according to the invention.

The invention relates to the technical field of frit recovery, in particular to an environment-friendly recovery treatment system for waste and defective frits, which is characterized in that an extrusion roller is driven to intermittently impact a driven inner cylinder according to a sharp-petal track through lifting switching of an adjustable gear ring and revolution and autorotation composite motion of a path grooved wheel, and a complete difference between low-toughness instant fragmentation of glass and high-toughness maintenance of clinker is utilized; selective crushing is realized; and the middle shifting arm synchronously gathers the large clinker and the glass together in the impact gap and maintains vertical layering, so that the large clinker is hit and the small clinker penetrates through the screen. The timing input bin is used for quantitatively pushing the raw materials in the buffer tank into the bottom execution bin in a crank-slider manner, so that overload or empty beating is avoided; the screening base drives the driven inner cylinder to continuously rotate through the rotating shifting arm, cullet is thrown out and collected once the cullet is smaller than the aperture of the screen, clinker is retained and continuously hit, the whole process is closed, the glass recovery rate is larger than or equal to 95%, the clinker inclusion rate is smaller than or equal to 3%, and waste and defective glass materials are recycled in an environment-friendly, efficient and high-value mode.

The invention provides an alumina clinker calcining device and a clinker calcining method thereof, and relates to the field of material calcining, the alumina clinker calcining device comprises a mounting base, a mounting rack is arranged at the top end of the mounting base, a calcining mechanism is arranged at the top end of the mounting rack, and the calcining mechanism is movably connected with a feeding mechanism. The calcining mechanism is arranged to effectively calcine alumina clinker, and meanwhile, the feeding mechanism is arranged, so that the problems that according to a traditional calcining device, untreated alumina raw materials directly enter a calcining cavity, large-particle raw materials are prone to being accumulated at the bottom to form a heat insulation layer, small-particle raw materials suspend on the upper portion, and the raw materials are prone to being burnt are effectively solved. The heating time and strength differences of the raw materials in different forms are obvious, and the phenomenon of insufficient combustion generally exists.

The invention discloses a refractory mortar sheet-shaped prefabricated body as well as a preparation method and a construction method thereof, and belongs to the technical field of refractory mortar. The refractory mortar flaky preform is prepared from the following raw materials: 70 to 80 percent of porous bauxite clinker, 5 to 10 percent of quartz powder, 5 to 10 percent of silica powder, 0.5 to 1.0 percent of isothiazolinone derivative, 3 to 6 percent of passivated aluminum powder, 0.1 to 0.3 percent of tricalcium aluminate and 3 to 5 percent of yellow dextrin. 10-15% of a polyvinyl alcohol solution is added; the mass ratio of polyvinyl alcohol to water in the polyvinyl alcohol solution is 1: (18-20); the preparation method comprises the following steps: uniformly mixing the raw materials, pressing into slices and curing. The refractory mortar sheet-shaped prefabricated body has a rich microporous structure, has heat insulation property and moisture permeability, also has good forming strength and good plasticity and high-temperature performance after wetting, realizes a construction mode of on-site unpacking and ready-to-use, greatly improves the construction efficiency, and is suitable for high-efficiency masonry of industrial kiln masonry.

The application provides a grate cooler capable of measuring and controlling the thickness distribution of a material layer, and relates to the technical field of the grate cooler.The grate cooler capable of measuring and controlling the thickness distribution of a material layer comprises a supporting seat, a feeding box is fixedly connected to one side of the top of the supporting seat, a cooling box is fixedly connected to the middle of the top of the supporting seat, a discharging box is fixedly connected to the other side of the top of the supporting seat, a hydraulic cylinder is fixedly connected to the top of one side of the feeding box, a discharging hopper is penetrated through and fixedly connected to the top of the feeding box, a material distribution assembly is arranged on the inner wall of the discharging hopper, and second servo motors are fixedly connected to the top of both sides of the cooling box.By opening the first servo motor, the first servo motor output end drives the gear to rotate, thereby driving the baffle to move up and down through the rack, so as to control the speed of discharging, make the clinker evenly distributed on the grate bed, avoid local accumulation, and ensure the stability of the raw material feeding.

This invention belongs to the field of functional ceramic materials preparation, and particularly relates to a functional ceramic material for aging baijiu (Chinese white liquor) that adheres to the inner wall of a ceramic wine storage container and its application. It is made from the following raw materials by weight: raw material, cooked material, and auxiliary additives. The raw material and cooked material are each made from the following components by weight: 30-40 parts clay and 25-40 parts purple clay. The auxiliary additives are made from the following components by weight: 5-10 parts binder, 20-30 parts water, 2-3 parts water-reducing agent, 0.5-1 part CuO, 0.5-1 part ZnO, and 0.5-1 part BaO. The functional ceramic material for aging baijiu described in this invention has a water absorption rate of 1-3% and a porosity of 80-85%. According to professional wine tasters, when baijiu is stored in the wine storage container of this invention, the spiciness of the baijiu is reduced, the taste is better, smoother, and more mellow, the aftertaste is sweet and rich, aldehydes are reduced, and esters are increased.

The application discloses an anti-erosion expansion anti-cracking agent for concrete and a preparation method thereof, and belongs to the field of admixtures for building materials. The anti-erosion expansion anti-cracking agent comprises the following raw materials: modified expansion clinker, low-activity magnesium oxide expansion agent, semi-dense silica fume, alumina ceramic micro powder, modified hydration heat regulating material, water reducing agent, shrinkage reducing agent and perlite. The preparation method of the modified expansion clinker is as follows: under the stirring state, a surface modifier with a mass fraction of 2% to 4% of the expansion clinker is sprayed into the expansion clinker, the surface modifier comprises a polymer solution and polyvinyl alcohol, and the polymer solution comprises at least one of styrene-acrylate emulsion or butadiene-styrene emulsion. The preparation method of the modified hydration heat regulating material is as follows: an acid catalyst is added to dry starch in a spraying mode. The anti-erosion expansion anti-cracking agent has the characteristics of reducing the hydration temperature rise of concrete, slowing down the autogenous shrinkage and drying shrinkage, continuously expanding slightly, improving the anti-erosion effect of concrete and the like, and can significantly improve the anti-erosion strength of the concrete.

The application relates to a gypsum clinker and a preparation method thereof. The method comprises the following steps: firstly, calcining dihydrate gypsum raw materials at high temperature; and then, removing the crystal water in the gypsum through low-temperature calcination. Through the process of controlling temperature in stages, the gypsum clinker with low specific surface area can be efficiently prepared. The technical scheme of the application not only significantly shortens the calcination time of gypsum and effectively reduces the energy consumption of the clinker preparation link, but also greatly reduces the water consumption in the subsequent gypsum product forming due to the low specific surface area of the obtained clinker, so that the energy consumption in the product production process is further reduced.

This invention discloses a method for preparing mullite porous ceramics by adding urea fluorosilicate. The preparation method includes the following steps: accurately weighing the following basic raw materials by mass fraction: kaolin clinker and alumina micro powder; slowly adding urea solution dropwise to fluorosilicic acid solution while continuously stirring throughout the process, and obtaining urea fluorosilicate solution after the system is homogeneous; adding urea fluorosilicate solution, kyanite, mullite whiskers and water to the basic raw materials, mixing evenly and pouring into a mold; placing the mold in an oven at 60~90℃ for sealing and curing for 2~6 hours; after molding, demolding and drying for 24~48 hours, and then holding at 1450℃~1600℃ for 2~4 hours, a mullite porous ceramic with a through-pore structure, high porosity, low thermal conductivity, good flexural strength and dimensional stability is obtained.

The invention discloses a solid waste-based composite concrete anticorrosive coating and a preparation method thereof, and relates to the technical field of building materials. The coating is composed of 16%-20% of a component A and 80%-84% of a component B, the component A comprises expanded graphite, novel low-calcium clinker and the like, the component B comprises fine silt, tailings and other solid waste raw materials, and a compact structure is formed through reasonable grain composition and a dual micro-expansion effect. During preparation, the coating with the convex structure is formed through grinding, mixing and roll coating forming. A large amount of industrial solid waste is utilized, and the coating is low-carbon, environmentally friendly, low in cost, excellent in carbonization resistance, ion erosion resistance and bacterial erosion resistance, high in early strength, good in toughness, resistant to cracking, capable of being self-repaired, low in later maintenance cost and capable of achieving multi-factor long-acting protection on concrete and solves the problems that an existing coating is single in protection, poor in economical efficiency and the like.

The invention discloses an in-situ structure enhanced series silicon mullite brick and a preparation method thereof, and belongs to the field of refractory materials. The series of silicon mullite bricks mainly comprise the following raw materials in percentage by weight: 50-65% of 5-0mm high-strength alumina-based mullite homogenized material, 6-12% of silicon carbide, 15-35% of alumina clinker, 0-25% of tabular corundum, 0-3% of metal silicon powder and 3-7% of binding clay. And a binding agent accounting for 3-5% of the total weight of the raw materials is added. Mixing the high-strength alumina-based mullite homogenized material and the alumina clinker, then adding a binding agent for continuous mixing, and finally adding other raw materials for uniform mixing to obtain mixed pug; and sequentially pressing the mixed pug into green bricks, drying, firing, cooling and drawing out of a kiln to obtain the in-situ structure enhanced series silicon mullite bricks. The product provided by the invention has the advantages of small volume density, light weight, low heat conductivity and long service life, and the thermal shock resistance and wear resistance are also obviously improved.

The invention belongs to the technical field of building materials, and particularly discloses a low-carbon sound insulation and heat preservation material and a preparation method thereof. The special high-free-calcium belite sulphoaluminate clinker, various industrial by-product gypsum, granulated blast furnace slag powder and other industrial wastes are used as main raw materials, and microbeads, light sand, floating beads and rubber particles are added as main composite fillers; the performance of the low-carbon sound insulation and heat preservation material is finely adjusted by using the water reducing agent, the retarder, the cellulose ether, the defoaming agent and the redispersible rubber powder, so that the obtained sound insulation and heat preservation material can achieve an excellent sound insulation effect, and the sound insulation and heat preservation material provided by the invention not only has an excellent sound insulation effect, but also has good heat preservation and mechanical properties. The problem that a mortar material in the prior art cannot give consideration to heat preservation, sound insulation and mechanical properties is effectively solved.

The invention relates to the technical field of refractory materials, in particular to a method for calcining high-alumina clinker in one step by utilizing a gibbsite homogenized material, which comprises the following steps: carrying out raw material pre-homogenization, crushing, screening and grinding on a gibbsite raw material subjected to coarse crushing by using a dust collection system matched with each process, and carrying out ball pressing on the powder and dust collection ash in a high-pressure forming process, the pellets enter a thermotechnical kiln through a feeding system to be calcined, and high-aluminum clinker obtained through calcination is cooled and then enters subsequent finished product transportation, finished product processing and finished product storage. The method has the beneficial effects that the high-alumina clinker product with high volume density can be effectively prepared, the method has the characteristics of simple process and low energy consumption, and the raw material utilization rate and the environmental protection requirement can be considered.

The utility model provides an efficient heat exchange grate cooler, and relates to the field of building material machinery, the efficient heat exchange grate cooler comprises a grate plate used for pushing clinker to move; the grate bed is arranged at the bottom of the grate plate and is used for supporting the grate plate; the plurality of hydraulic transmission devices are arranged at the bottom of the grate bed and are used for controlling the movement of the grate plate; the plurality of grate bed supporting devices are arranged between every two adjacent hydraulic transmission devices and are used for supporting the grate beds; the upper shell is arranged at the top of the grid plate and is used for preventing the hot air from dissipating; the cooling fan unit is arranged on one side of the grate bed; the cooling device is used for providing cooling air for clinker cooling. According to the clinker cooling device, the nozzle plate and the nozzles are arranged, the nozzles are driven to be inserted into a clinker layer through downward pressing of the hydraulic rod, cooling air passes through the nozzle plate and is sprayed out of the nozzles, uniform cooling of the clinker layer is achieved, clinker cooling is fast, and the problem that clinker cooling is not uniform in the prior art is solved.

This invention provides a radiant calcining kiln, belonging to the field of calcining kiln technology. It includes a feeding device for lifting materials into the kiln; a calcining kiln for calcining the materials, comprising a preheating zone for preheating the materials, a calcining zone for calcining the materials, and a cooling zone for cooling the calcined materials; and a waste gas treatment system for treating the waste gas generated during combustion. This invention can calcine small materials with a diameter less than 20mm, solving the problems of easy nodule formation, poor permeability, and low utilization rate and resource waste in the calcination of small particles. During use, nodule formation is prevented, reducing the difficulty of production operations, and the heat from combustion can be fully utilized, achieving energy conservation and emission reduction. Through radiant heat transfer, the materials do not directly contact the flame, resulting in uniform heating, a low rate of undercooked materials, and no open flame inside the kiln, thus producing less ash and resulting in higher purity clinker.

The invention discloses a raw material pre-decomposition system for sintered alumina clinker, a pre-decomposition method and application, the raw material pre-decomposition system comprises a material distribution valve, and a smoke chamber, a decomposition furnace, a cyclone cooler, a multi-stage cyclone preheater and an oxidation furnace which are sequentially connected through a pipeline, the multi-stage cyclone preheater is further connected with the decomposition furnace through a pipeline, and the oxidation furnace is connected with the decomposition furnace through a pipeline. The material distributing valve is respectively connected with the multi-stage cyclone preheater and the cyclone cooler through pipelines, and the cyclone cooler is also connected with the smoke chamber through a pipeline. Predecomposition of raw materials and reduction of sulfur are completed through the multi-stage cyclone preheater and the decomposing furnace, the temperature of materials discharged out of the decomposing furnace is reduced through the cold raw materials, the problem that high-temperature materials crust in the preheater and a smoke chamber is solved, reduction gas generated by the system is combusted and oxidized through the oxidizing furnace, and generated high-temperature smoke is used for drying red mud raw materials. The process is simple, the system is stable and reliable, the sulfur reduction rate is high, the yield and consumption of the system are increased, the clinker quality is improved, and good economic benefits and social benefits are achieved.

The application discloses a kind of glass batch granulation clinker feeding control method, based on constant temperature, constant humidity, metering integrated feeding system realizes continuous stable unloading.The system includes bunker, steam heating nozzle, temperature and humidity sensor, unloading metering scale and other components, the core is in the introduction of kiln waste heat generated steam, temperature and humidity are adjusted to the inside of bunker by steam heating nozzle, and temperature and humidity sensor form interlock control, realize the real-time monitoring and automatic control of the environment in the bin.At the same time, the bunker is equipped with high-precision unloading metering scale to realize independent accurate control, the inner wall is provided with wear-resistant lining to prevent material pollution, and the outside is equipped with vibrator to ensure smooth unloading.The application solves the problems of unstable material properties, insufficient measurement accuracy and poor unloading of existing feeding methods, realizes the dual goals of energy saving and material quality stability, can adapt to intelligent production, and improves the quality and pass rate of glass products.

This application relates to the field of ceramic materials technology, and discloses a heat-resistant ceramic glaze with high thermal shock resistance and low expansion, and its preparation method. The glaze comprises 70.0–80.0 parts of base powder, 20.0–30.0 parts of β-spodumene clinker, 50.0–60.0 parts of added water, 0.2–0.4 parts of sodium polyacrylate, 0.1–0.3 parts of sodium carboxymethyl cellulose, and 0.05–0.15 parts of calcium acetate. The base powder contains inorganic raw materials such as calcium borate. Within the system, a three-dimensional yield network structure is formed by the cross-linking of the molecular chains of sodium carboxymethyl cellulose and calcium ions ionized from calcium acetate. During preparation, the base powder and β-spodumene clinker are sequentially fed into a ball mill for grinding, and a cross-linking agent is added before stopping the mill. This invention utilizes the three-dimensional yield network structure to stably suspend large-particle-size β-spodumene clinker. When the ceramic product experiences drastic temperature changes, the low-expansion crystal remnants retained internally buffer thermal stress concentration, thereby effectively preventing glaze surface cracking.

This invention belongs to the field of solid waste treatment technology, specifically disclosing a method for preparing composite high-strength vitrified microspheres using perlite tailings. First, the perlite tailings raw material is crushed and homogenized. Then, the homogenized perlite tailings raw material powder is mixed with perlite clinker, glass powder, a high-temperature composite foaming agent, and an adhesive in a specific ratio. Granulation is then performed in a granulator. Finally, expansion is carried out in a vortex expansion vitrification furnace to obtain composite high-strength vitrified microspheres, improving the utilization rate of perlite tailings. The composite high-strength closed-cell vitrified microspheres prepared by this invention using perlite tailings have advantages such as high strength, low water absorption, and low thermal conductivity. They can replace the most widely used lightweight materials, represented by expanded perlite, and are widely used in building energy-saving projects such as wall insulation, roof insulation, and composite insulation boards. The market demand is huge, and this method can effectively solve the environmental pollution problems caused by mineral tailings and waste residue.