80 results about "Pyrophyllite" patented technology

The application belongs to the technical field of paint, and particularly relates to a high-weather-resistance acrylic paint and a preparation method thereof. The high-weather-resistance acrylic paint comprises the following components and weight fractions: 25-40 parts of water-based acrylic resin, 10-20 parts of functional resin, 10-25 parts of modified filler of shea butter oil, 0.1-0.5 parts of defoaming agent, and 20-40 parts of water; the functional resin is water-based polyurethane modified alkyd resin; and the filler at least comprises pyrophyllite powder and nano titanium dioxide. The acrylic paint provided by the application has excellent weather resistance, adhesion, wear resistance and good thermal stability.

The invention relates to the technical field of synthesis equipment of superhard materials, in particular to energy-saving type diamond production equipment and a production technology.The energy-saving type diamond production equipment comprises a machine body, a holding-up hammer, a transmission rod, a clamping piece and an adjusting assembly, the machine body is fixedly arranged, a cavity is formed in the machine body, pyrophyllite is located in the center of the cavity, and the holding-up hammer is arranged in the cavity; the holding-up hammers are arranged on the machine body, the extension lines of the transmission rods penetrate through the center and one vertex angle of the pyrophyllite, and the transmission rods slide and can intersect at the center position of the pyrophyllite; the clamping piece is arranged on the transmission rod and used for clamping the vertex angle, corresponding to the transmission rod, of the pyrophyllite. The adjusting assembly is used for guiding each holding-up hammer to slide towards the center position of the cavity. The pyrophyllite can be fixed at the central position in the cavity through the cooperative arrangement of the transmission rod and the clamping piece, so that the phenomenon of pyrophyllite position deviation caused by asynchronous contact between the six holding-up hammers and the pyrophyllite is improved, and the degree of uneven stress of a carbon source is relieved.

The invention relates to the technical field of fireproof plates, and provides a fireproof plate with high corrosion resistance. The fireproof plate is prepared from the following raw material components in parts by weight: 60 parts of Portland cement, 8 to 12 parts of refractory fiber, 10 to 20 parts of pyrophyllite powder, 8 to 16 parts of functional aggregate, 5 to 8 parts of epoxy resin, 0.5 to 1.5 parts of curing agent, 12 to 16 parts of flame retardant and 20 parts of water, the functional aggregate comprises zirconite powder and calcium metaborate in a weight ratio of (1: 9)-(9: 1). By means of the technical scheme, the problem that in the related technology, a fireproof plate is poor in breaking strength is solved.

The application relates to the technical field of pyrophyllite processing, in particular to a crusher for pyrophyllite processing, which comprises a whole support support, the inner wall of the whole support support is provided with a crushing cylinder main body, and the crushing cylinder main body is arranged in an inclined mode. The crusher for pyrophyllite processing is characterized in that a hydraulic device brings a ring-shaped pressing plate to move downward to press the crushing plate group, the adjacent crushing plates in the crushing plate group can compress the return springs in the corresponding two crushing plates, the distance between the two adjacent crushing plates is reduced, and the pyrophyllite between the two crushing plates is crushed, the crushed pyrophyllite gradually falls through the first through hole, the second through hole, the third through hole and the fourth through hole with smaller and smaller hole sizes, the pyrophyllite pieces containing other impurities which are larger than the hardness of the pyrophyllite cannot be completely crushed due to the large hardness, therefore, the pyrophyllite pieces containing impurities are left in the corresponding spaces of the crushing plate group according to the volume, and the crushed pyrophyllite is discharged through the discharge port.

The invention belongs to the field of refractory materials, and provides a light heat-insulating refractory brick and a preparation method thereof. The light heat-insulating refractory brick comprises particles, mixed powder and an additional binding agent, the particles comprise, by weight, 10-15 parts of expanded vermiculite and 30-45 parts of closed cell perlite, and the mixed powder comprises, by weight, 15-25 parts of spherical quartz powder and 5-15 parts of perlite dust collecting powder. The raw materials comprise, by weight, 5-10 parts of waste silica brick powder, 5-10 parts of siliceous pyrophyllite powder, 10-15 parts of Jiaozhou white clay, 5-15 parts of sodium montmorillonite powder and 5-15 parts of limonite powder; the additional binding agent comprises the following raw materials in parts by weight: 3-5 parts of binding slurry and 3-5 parts of pre-gelatinized starch. The refractory brick disclosed by the invention is a light heat-insulating refractory brick which is small in volume density, small in heat conductivity coefficient and capable of meeting the requirement of heat insulation in a high-temperature kiln at 900-1000 DEG C in normal-temperature compressive strength.

This invention belongs to the field of refractory materials for coke ovens in the coking industry, specifically relating to a refractory coke oven lining repair material and its preparation and application method. This application uses high-alumina bauxite, calcium hexaaluminate, calcite, biotite, wollastonite, and pyrophyllite as main materials, BaO as additives, and borosilicate glass powder and calcium phosphate as binders. Because the main materials of this repair material include high-alumina bauxite and calcium hexaaluminate, it has a high degree of compatibility with the original castable refractory, resulting in strong bonding. A single repair can extend the service life by more than one year, and it can be repeatedly repaired, thereby greatly improving the overall service life of the coke oven lining, reducing coke oven costs, and eliminating resource waste. This repair material can directly repair damaged parts of the coke oven without treating the lining, meeting the coke oven's usage conditions and enabling the reuse of the lining. Furthermore, the repair material's preparation method is simple, has a short construction cycle, and is easy to industrialize.

This utility model relates to the field of pyrophyllite processing, specifically to a pyrophyllite processing and sorting device, including a main body box. A receiving box is located at the bottom of the main body box, and a feeding box is located at the top. A processing box is located outside the main body box, and a transmission gear is located inside the processing box. A processing rod connected to the transmission gear is located inside the main body box. This utility model utilizes a vibrator to drive a vibrating box to vibrate, thereby adjusting and controlling the vibration of the movable plate. This allows smaller pyrophyllite raw materials to smoothly fall into the receiving box through the perforation. After the processing motor starts, the transmission gear meshes and drives the processing rod to rotate. Simultaneously, the external processing threaded strip pushes the material towards the discharge port, while the arrayed processing plate rotates and crushes the pyrophyllite. This design ensures that the pyrophyllite is effectively crushed, while harder stones will not be crushed due to insufficient rotation amplitude, thus achieving precise crushing of the pyrophyllite.

The invention belongs to the technical field of diamond manufacturing, and discloses a gemstone-grade diamond manufacturing device and method.The manufacturing device comprises a diamond synthesis cavity, a first driving device, a second driving device, a third driving device, a fourth driving device and a fourth driving device, the diamond synthesis cavity is provided with a through hole, and the axis of the through hole is arranged in the first direction; the at least two groups of growth units are arranged in the through hole, at least one group of growth units is positively arranged from one end of the diamond synthesis cavity to the axial center position of the diamond synthesis cavity, and the other group of growth units is reversely arranged from the other end of the diamond synthesis cavity to the axial center position of the diamond synthesis cavity; the diamond synthesis cavity is arranged in the pyrophyllite combination block; the cubic press is connected with the pyrophyllite combined block; the controller is electrically connected with the cubic press; therefore, the multiple groups of growth units in the diamond synthesis cavity are symmetrically arranged, so that the production efficiency of the gem-grade diamond manufacturing device and the manufacturing method provided by the invention is higher.

The invention relates to the technical field of superhard material processing, in particular to a superhard material green synthesis process and an energy-saving high-pressure device, the superhard material green synthesis process comprises six groups of hinge beams distributed up, down, left, right, front and back, the outer side of each group of hinge beams is fixedly connected with four groups of hinge lugs in a circumferential array, two adjacent groups of hinge lugs are in butt joint, and the hinge lugs are in butt joint with the hinge beams. A hinge pin is inserted into the two sets of hinged lugs which are in butt joint, a hydraulic cylinder is installed in each set of hinged beams, holding-up hammers are installed at the close ends of each set of hydraulic cylinders, the first metal rods are fixedly connected to the outer sides of the multiple sets of holding-up hammers, and the ends, away from the holding-up hammers, of the first metal rods are fixedly connected with first traction ropes. Through the structural design of the centrifugal clamping mechanism, instantaneous clamping of the centrifugal clamping mechanism and the clamping teeth is achieved, the holding-up hammer moving inertially is rapidly locked when sealing media such as pyrophyllite are broken, impact damage caused by out-of-control displacement of the holding-up hammer is effectively blocked, equipment blasting accidents are prevented from the source, and the service life of the holding-up hammer is prolonged. And the equipment operation safety and the part service life are obviously improved.

The application discloses a calcining device for pyrophyllite block production and relates to the technical field of pyrophyllite block production. The calcining device comprises a crucible and a clamping assembly. The outer wall of the crucible is provided with the clamping assembly for limiting and fixing. The clamping assembly comprises a fixing ring, a limiting ring, a fixing plate, a fixing hole, a connecting rod, a sliding groove and a limiting block. The fixing ring is provided below the fixing plate. The fixing plate is provided below the limiting ring. The device is provided with the clamping assembly. The position of the clamping block is adjusted by a spring and cooperates with the fixing ring and the limiting ring, so that the crucible is limited and fixed. After the calcining of the pyrophyllite material is completed, the process that a worker manually holds a tool to clamp the pyrophyllite material is avoided, the safety hidden danger is reduced, the long-term repeated mechanical labor steps of the worker are avoided, the probability of work failure is reduced, the production risk of the enterprise is reduced, the production cost of the enterprise is indirectly reduced, and the safety of the product is improved.

This invention belongs to the field of building materials technology. Specifically, it discloses a glaze for preventing ceramic tile deformation and an anti-deformation ceramic tile, comprising the following raw materials in parts by weight: 15-30 parts spodumene, 15-30 parts calcite, 12-20 parts bauxite, 8-15 parts pyrophyllite, 6-12 parts modified magnesium borate whiskers, 5-9 parts wet-process mica powder, 3-6 parts palygorskite, 1-2.5 parts calcium borate, 1-2 parts tricalcium silicate, and 0.2-0.7 parts ammonium fluoride. The system of this invention uses spodumene, calcite, bauxite, and pyrophyllite as the matrix minerals, effectively lowering the sintering temperature and providing basic strength to the system. At a lower firing temperature, a high degree of sintering of the glaze layer can be ensured, preventing sintering failure of other materials. By adding modified magnesium borate whiskers and wet-process mica powder, the flexural strength is effectively improved.

The invention discloses a corrosion-resistant refractory material and a preparation method thereof, and relates to the technical field of refractory materials, the corrosion-resistant refractory material comprises the following raw materials by weight: 70-80 parts of bauxite clinker, 15-25 parts of metakaolin, 10-15 parts of aluminum ash, 10-12 parts of corundum, 5-7 parts of phenolic resin and 12-14 parts of modified PP fiber. The modified pp fibers are obtained by grafting monomers containing sodium sulfonate, benzimidazole and nanoscale pyrophyllite powder with pp fibers. The refractory material provided by the invention has excellent corrosion resistance, refractoriness and compressive strength, and is worthy of popularization and application.

The invention discloses a pyrophyllite assembly block sealing edge smearing mechanism which comprises a horizontally-rotating tray, a bottom plate is connected to the upper portion of the tray, a cushion block is arranged on the upper portion of the bottom plate, adjusting plates are connected to the two adjacent sides of the bottom plate, the adjusting plates are connected with bent plates, the lower ends of the bent plates are adjustably connected with the adjusting plates, and the upper ends of the bent plates are used for being attached to the side faces of a pyrophyllite assembly block. In the application state, the cushion block supports the bottom face of the pyrophyllite assembly block, the upper ends of the two bent plates are attached to the adjacent side faces of the pyrophyllite assembly block respectively, and twelve sealing edges of the pyrophyllite assembly block are exposed outside. By means of the horizontally-rotating tray, the bottom plate, the cushion block, the adjusting plate capable of adjusting and positioning and the bent plate, multiple pain points of manual smearing and an existing tool in the background technology are accurately solved, smearing reliability is guaranteed, and the risk of dislocation of internal components is eradicated; the smearing efficiency is improved, and the method is suitable for large-scale production; the operation safety is guaranteed, and the modern safety production requirement is met; the foundation adaptability is achieved, and assembling blocks of different specifications are adapted.

The utility model provides a waste pyrophyllite cleaning and recycling device, which belongs to the technical field of dust fall, and comprises a material collecting groove arranged at the top of a material inlet of crushing equipment, the interior of the material collecting groove is used for containing accumulated water, a supporting plate is further arranged on the material collecting groove, a plurality of air inducing pieces are arranged on the supporting plate, air inducing pipes and air guiding pipes are connected to the air inducing pieces, and the air guiding pipes are connected with the material collecting groove. The end, away from the air inducing piece, of the air guiding pipe is located in accumulated water in the material collecting groove. According to the pyrophyllite powder collecting device, pyrophyllite powder at the feed port of the crushing mechanism can be collected, so that a large amount of pyrophyllite powder can be prevented from flying in the air to influence the working environment.

The invention relates to the technical field of ceramics, in particular to honeycomb bubble glaze and a processing technology of glazed foamed ceramic. The cellular bubble glaze comprises the following basic glaze components: low-temperature frit, quartz, glass powder, calcium carbonate, pyrophyllite, kaolin, talc and lithium carbonate. The firing process specifically comprises the following steps: controlling the atmosphere to be a reducing atmosphere, and controlling the firing time to be 85 + / -5min in a temperature interval of 400 + / -50 DEG C and 925 + / -25 DEG C; converting into an oxidizing atmosphere, increasing the temperature to 1025 + / -25 DEG C and 1110 + / -10 DEG C in sequence in a stepped manner, and carrying out heat-preservation firing at the highest firing temperature. According to the invention, carbonate which is not decomposed in time continues to decompose gas, foaming gas generated by reaction of the carbonate and an adjacent foaming agent which is excited by oxygen is fused and enlarged in a glaze melt until a glaze surface is broken through to form open bubbles with large bubbles, and open bubbles with small bubbles are formed on the glaze surface which only contains silicon carbide or silicon-oxygen-carbon but does not contain undecomposed carbonate; therefore, the glaze foaming effect with coexisting large and small foam holes is achieved.

The present invention relates to an apparatus and method for sintering diamond carbide composite sheets and synthesizing single crystal diamond. The pyrophyllite block has through-holes for fitting carbon tubes and conductive steel rings. The carbon tubes are installed within the pyrophyllite block, which are then fitted with salt tubes. A metal cup containing a carbide base and diamond powder is placed within the salt tubes, with salt sheets encapsulated at the upper and lower ports. The carbon sheets and conductive steel rings are installed at the upper and lower ends of the pyrophyllite through-holes, and the carbon sheets, salt tubes, and salt sheets are bonded to each other. The conductive steel rings have through-holes for fitting ceramic insulating cups and ceramic heat-insulating sheets. The ceramic insulating cups are installed within the pyrophyllite block, and a synthesis column for synthesizing single crystal diamond is installed within the ceramic insulating cups. The ends of the ceramic insulating cups are encapsulated with ceramic heat-insulating sheets. The synthesis column is composed of a mixture of high-purity graphite and three-element metal powders of Fe, Ni, and Co. The high temperature within the pyrophyllite block during sintering the diamond carbide composite sheet is utilized to transfer heat upward and downward to the upper and lower conductive steel rings, so that the synthesis column meets the conditions for synthesizing single crystal diamond, thereby synthesizing single crystal diamond.

The invention relates to the technical field of ceramic material preparation, and particularly discloses a ceramic-forming sagger pug and a preparation method thereof, the ceramic-forming sagger pug is prepared from the following raw materials: 40-60 wt% of kaolin, 20-30 wt% of calcined alumina, 10-15 wt% of quartz, 0.5-1.2 wt% of ammonium fluoride, 5-10 wt% of pyrophyllite, 15-20 wt% of tabular corundum, and 5-10 wt% of clay; sintering the pug at 1350 DEG C, and performing layered pressing on the pug to form an asymmetric layered structure; by optimizing a raw material formula and adding functional components (such as ammonium fluoride and tabular corundum), in-situ generation of mullite whiskers with a high length-diameter ratio in a high-temperature sintering process of the pug is remarkably promoted, so that the mechanical strength and thermal stability of the material are improved, and the material is more suitable for long-term use in a high-temperature environment; by adopting the design of the asymmetric layered structure (the compact layer, the buffer layer and the supporting layer), the thermal expansion coefficients and stress distribution of different areas are effectively coordinated, the thermal shock resistance of the sagger is greatly enhanced, and the cracking problem caused by thermal stress concentration of a traditional homogeneous structure is avoided.

The high-temperature and high-pressure assembly structure of the special-shaped polycrystalline diamond drilling element comprises a pyrophyllite block, a pressure transmitting medium is coaxially embedded and installed in the pyrophyllite block, and through holes are vertically formed in the centers of the interior of the pyrophyllite block and the interior of the pressure transmitting medium. A conductive steel ring, a first conductive assembly, a first pressure transmission assembly, a first conductive assembly, a heating tube, a first conductive assembly, a first pressure transmission assembly, a second conductive assembly and a conductive steel ring are sequentially arranged in the through hole from bottom to top in an abutting mode, and second conductive assemblies are embedded in the two pressure transmission assemblies; an insulating tube with two flush ends is coaxially arranged in the heating tube, a composite sheet assembly is mounted in the insulating tube, and two ends of the composite sheet assembly abut against the corresponding first conductive assemblies through insulating parts respectively. The temperature field uniformity of the composite sheet can be improved, the interface stress of the composite sheet can be weakened, and the composite sheet is suitable for drilling and production environments such as hard strata, complex strata, hard strata and interlayers.

The invention relates to a high-strength water-absorbing breathing brick and a preparation process thereof, the high-strength water-absorbing breathing brick is composed of a first base material and a second base material according to a weight part ratio of (50-70): (30-50), and the first base material comprises the following raw materials: potassium-sodium feldspar, wollastonite and magnesia soil; the second base material comprises the following raw materials: quartz sand, pyrophyllite, siliceous shale, diatomite and sepiolite fibers, by limiting the raw material composition of the water-absorbing breathing brick, the pyrophyllite, the siliceous shale and the sepiolite fibers are introduced to be matched with other raw materials, so that a uniformly-distributed porous structure is formed in the fired water-absorbing breathing brick, the porosity in the brick body is improved, and the water-absorbing breathing brick has a good water-absorbing breathing effect. Therefore, the water absorption rate and the water permeability of the brick body are improved, and the use requirements of outdoor bricks are met.

This invention belongs to the field of olefin polymerization technology and discloses a supported metallocene catalyst, its preparation method, and its application. The catalyst comprises a support and a metallocene compound and an alkylaluminoxane supported on the support. The support is a spherical pyrophyllite-clay composite material with three-dimensional cubic channels, made of mesoporous clay silica, silica gel, and pyrophyllite clay minerals. The metallocene compound has the structure shown in Formula 1, where R1, R2, R3, R4, R5, R1', R2', R3', R4', and R5' are each independently hydrogen or a C1-C5 alkyl group, and at least one of R1, R2, R3, R4, and R5 is a C1-C5 alkyl group, at least one of R1', R2', R3', R4', and R5' is a C1-C5 alkyl group, M is one of titanium, zirconium, and hafnium, and X is a halogen. The catalyst of this invention has a stable structure and high catalytic activity.

A coating layer composition including: 30 to 70 wt. % of a polyvinyl chloride; 1 to 5 wt. % of a heat stabilizer; 8 to 24 wt. % of a plasticizer; 2.5 to 30.0 wt. % of a HCl-reactive compound; 3 to 40 wt. % of a filler; and 1 to 8 wt. % of a pigment, based on the total weight of the coating layer composition, wherein the polyvinyl chloride has a K-value in the range of 75 to 100, wherein the HCl-reactive compound is selected from the group consisting of CaCO3, hydrotalcite, zeolite, hydrocalumite, hydroxides of magnesium, hydroxides of aluminum, wollastonite, and mixtures thereof, wherein the filler is selected from the group consisting of talc, mica, pyrophyllite, kaolin, and mixtures thereof, and wherein the filler has a plate-shape.

The invention aims to provide a method for preparing orange fluorescent ceramic by adding rare earth Y type zeolite cracking catalyst tailings, and belongs to the technical field of luminescent materials.The method comprises the steps that firstly, magnesium oxide, fumed silica, aluminum hydroxide, europium oxide and yttrium oxide are weighed, water is added, ball milling is conducted, and precursor fluorescent powder is obtained after drying; preparing luminescent powder containing precursor fluorescent powder, frit, aluminum hydroxide, potassium feldspar, pyrophyllite and strontium carbonate; and weighing the luminescent powder and the rare earth Y-type zeolite cracking catalyst tailings, adding water, carrying out ball milling, drying, carrying out compression molding, and sintering at a high temperature to obtain the orange fluorescent ceramic. The technical process is simple, industrial production is facilitated, the excitation spectrum, the emission spectrum and the fluorescence color of the orange fluorescent ceramic can be regulated and controlled through the content of the rare earth Y-type zeolite cracking catalyst tailings, and the method can also be used as a recycling technology of the rare earth Y-type zeolite cracking catalyst tailings.

The invention provides a preparation method and application of a sub-nanometer zero-valent composite mineral-based three-dimensional organic framework material for deeply treating silicon and fluorine in photovoltaic wastewater, and belongs to the technical field of deep treatment of fluorine and silicon in photovoltaic wastewater. The preparation method comprises the following steps: respectively crushing lapis lazuli, aluminum-rich pyrophyllite, limonite, phoenix stone, barite and dolomite, sieving, mixing, reducing and roasting in a hydrogen atmosphere to obtain a nano zero-valent complex mineral, adding the nano zero-valent complex mineral into a nano sand mill, adding grinding balls, an organic ligand, an organic solution and a grinding aid, and carrying out multi-element wet-type ball milling to obtain the nano zero-valent complex mineral. The preparation method comprises the following steps: preparing a sub-nano zero-valent complex mineral, performing water bath ultrasonic treatment on the sub-nano zero-valent complex mineral by adopting a 3D printing technology to obtain a 3D-sub-nano zero-valent complex mineral, and finally performing hydrothermal reaction to obtain the sub-nano zero-valent complex mineral-based three-dimensional organic framework material which has high adsorption performance and high activity and can realize efficient removal of silicon-containing and fluorine-containing wastewater. The invention aims to overcome the defects that the existing commercially available adsorbent has low removal rate on silicon and fluorine and is easily interfered by other ions.

The crushing equipment comprises a crushing box, the top of the crushing box is open, the inner side wall of the lower end of the crushing box is in a prismatic table shape, the top of the crushing box is detachably provided with a box cover, a discharging opening, supporting legs, two connecting shafts, crushing rollers and a driving module, and the box cover is provided with a feeding hopper matched with the two crushing rollers. Linear sliding tables running in the left-right direction are arranged at the left side end and the right side end of the top of the box cover correspondingly, a U-shaped mounting frame capable of stretching across the feeding hopper in the front-back direction is jointly arranged at the tops of sliding bases of the two linear sliding tables, and a telescopic scrap cleaning module is arranged at the top of the mounting frame. According to the crushing equipment for the large-particle pyrophyllite, disclosed by the utility model, not only can the basic requirement of performing crushing treatment on the pyrophyllite be met, but also the crushing structure can be quickly and efficiently cleaned under the condition that the device does not need to be disassembled, so that the influence on the overall efficiency of performing crushing processing on the pyrophyllite is avoided.

The utility model provides a feeding device of a pyrophyllite crusher, which comprises a feeding hopper vertically arranged at the top of a crusher body, a collecting hopper arranged on the outer side wall of the side end of the lower part of the feeding hopper, a discharging pipe arranged at the bottom of the collecting hopper, a control valve arranged on the discharging pipe, and an extension plate transversely arranged on the outer side wall of the collecting hopper, a vertical rod, a top plate, a telescopic push rod and a dust-falling spraying cover are further vertically arranged at the top corner of the extension plate, a water inlet pipe is arranged at the top of the dust-falling spraying cover, a pump body is arranged on the water inlet pipe, and the water inlet pipe is connected with a water supply device through a water guide hose. According to the feeding device of the pyrophyllite crusher, disclosed by the utility model, not only can the basic requirement of feeding pyrophyllite be met, but also dust generated in the crushing process can be effectively prevented from escaping everywhere, and the influence on the overall efficiency of crushing the pyrophyllite is avoided.

The present invention relates to a low-thermal-conductivity, alkali-resistant alumina-based mullite composite and a preparation method thereof, belonging to the technical field of refractory materials. The method comprises the following steps: step 1, wet-grinding 70-92 wt% of low-alumina pyrophyllite, 6-15 wt% of zirconia raw material, and 1-15 wt% of natural quartz according to mass percentage, adding a certain amount of organic binder and granulating, and calcining at 1420-1480°C for 1-2 hours to obtain modified SiO2 fine particles with a low melting point; step 2, uniformly mixing 70-85 wt% of low-grade bauxite fine powder, 10-25 wt% of modified SiO2 fine particles, and 4-8 wt% of alumina raw material according to mass percentage, forming a green body under a pressure of 80-120 MPa, calcining at 1550-1630°C for 3-10 hours, cooling, and crushing to obtain the low-thermal-conductivity, alkali-resistant alumina-based mullite composite. The invention uses low-grade high-alumina bauxite as the main raw material, modifies SiO2 at high temperature and diffuses it in situ to form pores, and the production process is pollution-free; the obtained alumina-based mullite synthetic material has the characteristics of low thermal conductivity, good high-temperature mechanical properties, and excellent alkali corrosion resistance.

The invention discloses a method for preparing a photocatalytic material by light-induced kaolinite structure reconstruction, and belongs to the technical field of photocatalytic materials. The method comprises the following steps: dispersing kaolinite in deionized water to obtain slurry, adjusting the pH value to 8-13, stirring for 24-72 hours under the condition of ultraviolet irradiation, centrifuging, washing, drying, and grinding to obtain the photocatalytic material. The kaolinite is promoted to generate structural transformation through the synergistic effect of ultraviolet irradiation and the alkaline environment, the resultant phase composition comprises an illumination reaction product of montmorillonite, kaolinite and pyrophyllite, and due to the improvement of the interfacial effect and the defect density, the stability of the kaolinite is improved, and the stability of the kaolinite is improved. The adsorption and catalytic degradation capabilities of the material on organic pollutants are remarkably enhanced, so that the prepared photocatalytic material has a good application prospect in the field of sewage treatment.

The utility model discloses a crusher for pyrophyllite processing, which relates to the technical field of pyrophyllite production and comprises a crusher body, a cover plate is arranged at the upper end of the crusher body and can rotate, a feed port is arranged at the upper end of the side surface of the crusher body, and an inclined feed pipeline is arranged on the outer side of the feed port. A vibrating plate is arranged in the feeding pipeline, a plurality of evenly-distributed springs are arranged on the bottom end face of the vibrating plate, a baffle is arranged on the inner side of the feeding opening, and a first rotating shaft is arranged at the upper end of the baffle; according to the pyrophyllite crusher, the upper end opening of the crusher body is covered by the cover plate, fragments generated during crushing are prevented from being splashed out from the upper end opening of the crusher body, then the feeding port can be blocked by the baffle, the fragments generated during working of the crusher body are prevented from being splashed out from the feeding pipeline, splashing of pyrophyllite fragments is effectively prevented, and the service life of the pyrophyllite crusher is prolonged. And the safety of surrounding workers is protected.

The invention relates to the technical field of materials, and discloses a modified plastic composite master batch and a production process thereof.The modified plastic composite master batch is prepared from ethylene propylene diene monomer and chlorinated polyethylene as main raw materials and modified additives as additives through mixing and extrusion granulation processes. Wherein the modified additive is prepared by modifying the surface of pyrophyllite with a macromolecular modifier, and due to the existence of the macromolecular modifier, the interface affinity of the pyrophyllite and the ethylene propylene diene monomer can be improved, so that the pyrophyllite can give full play to the reinforcing effect of the pyrophyllite as an inorganic additive, and the mechanical strength of the plastic is improved. Besides, the macromolecular modifier can promote rapid formation of an expanded carbon layer structure on the surface of the material during combustion to effectively prevent heat and oxygen, and meanwhile, pyrophyllite can form a layer of stable and high-temperature-resistant ceramic barrier during combustion to cooperate with a carbon layer, so that the flame retardant property of the material is greatly enhanced.

The utility model relates to the technical field of pyrophyllite products, disclose a pyrophyllite ring for pressing pyrophyllite composite block, including pyrophyllite ring, the pyrophyllite ring outside is provided with pyrophyllite composite block, the pyrophyllite ring inside fixedly connected with the sheath layer, the sheath layer inside is provided with the sliding slot, the sheath layer inside is provided with a plurality of fixed slots, the sheath layer inside is provided with the inner lining pipe, the inner lining pipe both sides are fixedly connected with the sliding block. In the utility model, by putting into the sliding slot inside with the opening of the sliding block aiming at the sliding slot, rotates the inner lining pipe, makes it drive the sliding block to slide in the sliding slot, after reaching the required position, stop rotating the inner lining pipe, press down the inner lining pipe, make the sliding block enter the fixed slot inside, complete locking, can make pyrophyllite composite block through pressing pyrophyllite ring, need not use, pull up the inner lining pipe and reverse rotation upward, can realize its quick dismounting, realized the detachable fixing between the inner lining pipe and pyrophyllite ring.