174 results about "Perlite" patented technology

The invention discloses a high heat storage density stable thermochemical adsorption composite heat storage material and a preparation method thereof, the high heat storage density stable thermochemical adsorption composite heat storage material comprises 54%-57% by mass of mixed salt and 43%-46% by mass of a porous material, the mixed salt comprises MgSO4 and MgCl2, the mass ratio of MgSO4 to MgCl2 is 9: 1-6: 4, and the porous material is expanded perlite modified by nano alumina or a silane coupling agent. The high-heat-storage-density stable thermochemical-adsorption composite heat storage material provided by the invention is simple in preparation method, and the modified expanded perlite is used as a carrier of the mixed hydrated salt; the obtained composite heat storage material has excellent performance: the salt-containing load rate is 114-121%, the water absorption rate is 1.2-1.28 g / g, the heat storage density is 1123.5-1208.6 kJ / kg, the heat storage temperature is 133.4-141.3 DEG C, the structural strength is 10.346-12.631 kPa, the structural stability is 99.27-99.53%, and the stability is 79.7-83.3% after circulation for 30 times, that is, the composite heat storage material is high in heat storage density, high in water absorption rate, low in heat storage temperature, high in strength and not easy to scatter and fall off, and the composite heat storage material is suitable for large-scale production. And the material also has relatively good cycling stability.

The invention relates to the technical field of building materials, in particular to a cementing material for a fabricated wall prepared from multi-element solid waste and a preparation method of the cementing material. The preparation method comprises the following steps: 25-55 parts of fly ash, 25-65 parts of blast furnace slag, 8-10 parts of lime, 1-5 parts of desulfurized gypsum, 3-6 parts of a first mixture, 2-5 parts of a second mixture and 5-8 parts of an alkali activator; the mass ratio of the metakaolin to the bentonite to the superfine calcium carbonate in the first mixture is 3: 2: 1; the mass ratio of the vermiculite to the expanded perlite to the glass beads in the second mixture is 2: 2: 1. Through the synergistic excitation effect of Ca < 2 + > and Na < + > and the addition of the first mixture and the second mixture, the cementing material forms a more stable microstructure. A hydration product SEM figure shows that C-S-H and C (N)-A-S-H gel are symbiotic to form a three-dimensional network, pores are filled with needle-like ettringite crystals, and in combination with the brucite phase anchoring effect, the mechanical properties, such as strength and durability, of the material are remarkably improved.

The invention relates to the technical field of green building materials, in particular to phase-change energy-storage thermal insulation mortar and a preparation method of the phase-change energy-storage thermal insulation mortar. 25 to 40 parts of methyl palmitate; 120 to 180 parts of hydrophobic perlite; 8 to 15 parts of expanded graphite; 3-6 parts of phosphorus sheet-shaped aluminum nitride; 180 to 250 parts of sulphoaluminate cement; 60 to 100 parts of volcanic rock micro powder; 0.3 to 0.8 part of hydroxypropyl methyl cellulose; 0.6 to 1.2 parts of a polycarboxylic acid water reducing agent; 2 to 4 parts of nano aluminum oxide; 0.8 to 1.5 parts of propyl gallate; and 1-2 parts of zinc borate. Through the proportion design of the antioxidant flame-retardant microcapsules and the lightweight composite aggregate, the problems of poor thermal conductivity and insufficient durability of a traditional phase change material are solved. Through phase change material loading, interface modification and multi-component cooperative regulation, the thermal insulation performance, energy storage efficiency and structural stability are remarkably improved, and the material is suitable for the fields of building energy saving, intelligent temperature control and the like.

The invention discloses a steel-wood composite heat insulation fireproof door, and relates to the technical field of fireproof doors. The steel-wood composite heat insulation fireproof door comprises a mounting frame structure, a fireproof door leaf structure is hinged to the inner side of the mounting frame structure, a protective observation window structure is arranged on the inner side of the fireproof door leaf structure, and a locking structure is arranged on the front side of the mounting frame structure. Through the arrangement of the fireproof door leaf structure and the combined design of the fireproof filling ceramsite layer, the fireproof perlite plate layer, the rock wool layer, the heat insulation cotton layer and the flame-retardant sealing layer in the fireproof door leaf structure, the strength and stability of the door body are enhanced, the heat insulation effect is remarkably improved, the fireproof filling ceramsite layer and the fireproof perlite plate layer serve as inner layer materials, and the fireproof filling ceramsite layer and the fireproof perlite plate layer serve as outer layer materials; the door body has excellent fire resistance and heat insulation performance, invasion of high-temperature flames and heat can be effectively blocked, the rock wool layer and the heat insulation cotton layer serve as middle layer materials, the heat insulation effect of the door body is further improved, and heat transfer is reduced.

The invention relates to the technical field of building materials, and discloses a preparation method of a phase change material composite building thermal insulation material based on a porous structure. 13 to 18 parts of modified diatomite; 9 to 13 parts of nano cellulose aerogel; 7 to 11 parts of food-grade palmitic acid; 8 to 13 parts of microcapsule bio-based PCM; 0.9 to 1.4 parts of modified graphene; 11 to 15 parts of environment-friendly polylactic acid; 7 to 10 parts of montmorillonite; 1-2 parts of nano silicon dioxide; by compounding the expanded perlite, the modified diatomite and the nanocellulose aerogel, a basic framework with high porosity and low heat conductivity is constructed, heat conduction is effectively blocked, by introducing food-grade palmitic acid and microcapsule bio-based PCM, the material is endowed with heat storage and temperature regulation functions, phase change latent heat is improved, and the thermal conductivity of the material is improved. By adding modified graphene and nano silicon dioxide, an efficient heat conduction network and a heat insulation structure are formed, and the heat conductivity coefficient of the composite building heat preservation material is further reduced.

The invention relates to the technical field of building ceramics, and particularly discloses a high-gloss light-weight glazed brick and a preparation method thereof.The preparation method comprises the steps that 1, composite high-aluminum mud, expanded perlite, nano-zirconia and graphene are mixed and subjected to ball milling, and green body powder is obtained; step 2, carrying out compression molding on the green body powder to form a green body, applying ground glaze on the green body, carrying out ink-jet printing, and carrying out shower coating of transition glaze and high-transmittance wear-resistant glaze to obtain a green brick; and step 3, drying the green brick prepared in the step 2, sintering, and carrying out composite polishing to obtain the high-gloss light glazed brick. The prepared high-gloss light-weight glazed brick not only has higher Moh's hardness, but also has the characteristic of remarkable light weight, so that the weight of the brick body is greatly reduced, the brick body also has higher wear-resistant grade and glossiness, scratches and wear in daily use can be effectively resisted, and the completeness and attractiveness of the surface can still be kept after the brick is used for a long time.

The invention relates to the technical field of foamed ceramics, in particular to a foamed ceramic and a preparation method thereof. The foamed ceramic comprises the following raw materials in parts by weight: 30-50 parts of waste cathode carbon blocks, 15-30 parts of rice hull ash, 15-30 parts of fly ash, 3-10 parts of calcium carbonate, 3-10 parts of expanded perlite and 2-5 parts of basalt fibers. According to the invention, the waste cathode carbon block is pretreated to form a porous structure, the porous structure and gas decomposed by calcium carbonate are jointly used as a gas source at a high temperature to generate initial pores, and a glass phase formed after rice hull ash activation has certain fluidity during sintering, and can fill pores, adjust pore surface tension and promote uniform expansion of the pores; the basalt fibers are inserted into the matrix in a three-dimensional bracket form, and collapse of pores due to high-temperature shrinkage or gas escape is prevented through physical support, so that the stability and uniformity of the pore structure are ensured, and the heat insulation performance of the foamed ceramic is improved.

The invention discloses a lightweight high-strength ceramsite proppant based on composite coating and low-temperature densification and a preparation method thereof. The coating proppant comprises a ceramsite proppant and a coating layer coating the surface of the ceramsite proppant, relates to the technical field of petroleum and natural gas engineering fracturing. The ceramsite proppant comprises bauxite, perlite, a composite sintering aid, B2O3 and AlF3. The composite sintering aid comprises MnO2 and TiO2; wherein the weight part ratio of the bauxite to the perlite to the composite sintering aid to the B2O3 to the AlF3 is 80: 20: (2.5-7.5): (3-12): (3-12); the low-grade bauxite and high-silicon raw material system is adopted, and a proper amount of sintering aid is introduced, so that the sintering temperature is effectively reduced, and the energy consumption is reduced; meanwhile, the volume density of the ceramsite proppant is reduced, and a lightweight product is obtained.

The invention relates to modified closed-cell expanded perlite and a preparation method thereof, and the expanded perlite is prepared by the following steps: (1) preheating and drying: preheating and drying a perlite raw material at the temperature of 300-450 DEG C for 5-30 minutes to obtain the perlite raw material with the bound water content of 1.5-3%; (2) preliminary puffing: pre-puffing for 5-10 seconds at the temperature of 800-900 DEG C; (3) cooling the preliminarily-expanded expanded perlite to normal temperature, spraying a certain amount of water glass solution on the surface of the expanded perlite, then spraying an aluminum sulfate solution, and continuously stirring for a period of time; the continuous stirring time is 5-10 minutes; and (4) carrying out secondary puffing at 1100-1150 DEG C for 2-10 seconds to obtain the closed-cell expanded perlite.

This invention discloses a lightweight, high-strength ceramsite proppant based on composite coating and low-temperature densification, and its preparation method. The coated proppant includes a ceramsite proppant and a coating layer covering the surface of the ceramsite proppant. It relates to the field of fracturing technology in oil and gas engineering. The ceramsite proppant includes bauxite, perlite, a composite sintering aid, B2O3, and AlF3; the composite sintering aid includes MnO2 and TiO2; wherein the weight ratio of bauxite, perlite, composite sintering aid, B2O3, and AlF3 is 80:20:2.5-7.5:3-12:3-12. This invention uses a low-grade bauxite and high-silica raw material system, combined with the introduction of an appropriate amount of sintering aid, effectively reducing the sintering temperature and energy consumption; simultaneously reducing the bulk density of the ceramsite proppant, resulting in a lightweight product.

The invention provides glassy shell expanded perlite as well as a preparation method and application thereof, and the preparation method comprises the following steps: pretreating perlite ore to obtain first perlite particles; proportioning the first perlite particles and a binder according to a mass ratio, and uniformly mixing the first perlite particles and the binder to obtain second perlite particles; proportioning the second perlite particles and the vitreous cladding powder according to a mass ratio, uniformly mixing and granulating to obtain third perlite particles; drying and preheating the third perlite particles to obtain fourth perlite particles; and carrying out high-temperature expansion treatment on the fourth perlite particles to obtain the vitreous shell expanded perlite. The expanded perlite prepared by the invention has the characteristics of high expansion time, small bulk density, high cylinder compressive strength, low heat conduction coefficient, small water absorption rate, acid and alkali corrosion resistance and the like; the material can be widely used for producing light materials, heat preservation and insulation materials, sound absorption and insulation materials, decorative materials and fireproof flame-retardant materials, and can be used as water surface floating heat preservation materials, sunscreen materials, reflective materials and the like.

The present invention provides a steel material that can suppress the occurrence of cracks during cold forging, even when cold forging is performed without spheroidizing annealing. [Solution] The steel material of this embodiment has a chemical composition in mass%, consisting of C: 0.30-0.60%, Si: 0.01-0.10%, Mn: 0.30-2.00%, P: less than 0.050%, S: 0.001-0.050%, Al: 0.001-0.200%, N: less than 0.020%, Cr: 0.01-0.40%, O: 0.0030% or less, and the remainder being Fe and impurities. The total area ratio of ferrite and perlite is 90% or more, the area ratio of perlite is 40% or more, the average particle size dP of perlite grains is 10.0 to 40.0 μm, the average particle size dP of perlite grains and the standard deviation σP of perlite grain size satisfy equation (1), the average particle size dF of ferrite grains is 25.0 μm or less, and the difference between the hardness of ferrite and the hardness of perlite is 140 HV or less. σP / dP<0.80 (1)

High impact and penetration resistant lightweight composite panels include a foam core and an impact and penetration resistant protective layer on at least a portion of the lightweight composite panel. The foam core is a polymer and / or inorganic foam layer or sheet having first and second surfaces. A fiber mesh reinforced cementitious layer can cover one or both surfaces of the foam core. Example polymer foam cores include extruded polystyrene foam, expanded polystyrene foam, polyisocyanurate foam, or polyurethane foam. Example inorganic foam cores include perlite, ceramic microspheres, hollow glass spheres, glass foam, ceramic foam, expanded silica gel, porous wollastonite, urea-silicate foam, SiOC / SiC foam, refractory foam, and graphene. The impact and penetration resistant protective layer can be formed from polyurea, polyurethane, polyurea-polyurethane hybrid, polyaspartic, polymer-modified mineral binder, or hybrid resin-mineral composite. The protective layer can include a tightly woven scrim and / or a slip resistant filler embedded in the polymer.

The invention discloses a preparation method of a multi-layer decorative plate based on foamed gypsum and a silicon crystal composite material in the field of building decorative materials, and the preparation method of the multi-layer decorative plate comprises the following steps: mixing and stirring gypsum, a water reducing agent and water into uniform slurry, adding a foaming agent to form foam, adding a modified interface agent, stirring at a low speed, injecting into a mold, and molding to obtain the multi-layer decorative plate. Standing at room temperature, primarily curing and curing in a drying oven to obtain a foamed gypsum surface layer; mixing a modified interface agent with silica sol to form viscous slurry, adding glass fibers, stirring, and blade-coating on the surface layer to form a transition layer; the modified diatomite, the expanded perlite, the hydroxyapatite and the cellulose ether are subjected to dry mixing, then water is added, stirring is performed to form pug, compression molding and drying are performed, and a porous substrate layer is obtained; and the transition layer and the substrate layer are bonded through modified interface agent slurry, and the surface is polished after cold pressing compounding. The decorative plate has the advantages of being excellent in breathing and humidifying performance, light in weight, high in strength, fireproof, non-combustible, firm in interface bonding, convenient to install and the like, and is suitable for indoor wall decoration.

This utility model relates to the field of fire-resistant infill door technology, specifically: a reinforced fireproof infill door, comprising a door body, the door body being composed of an outer protective layer, a first fireproof and heat-insulating layer, a reinforcing support layer, a second fireproof and heat-insulating layer, a buffer and shock-absorbing layer, and an inner protective layer. The outer protective layer is a steel plate with a fireproof coating; the first fireproof and heat-insulating layer is an aerogel composite fireproof felt; the reinforcing support layer is a honeycomb stainless steel skeleton structure; the second fireproof and heat-insulating layer is an expanded perlite fireproof board; the buffer and shock-absorbing layer is melamine foam; and the inner protective layer is a fireproof decorative board. In this utility model, through the synergistic effect of the six layers, the performance of the door body is comprehensively improved from multiple aspects such as fireproofing, heat insulation, structural support, and buffer and shock absorption. It can effectively block the spread of flames and heat for a long time during a fire, ensuring the structural integrity of the door body and buying valuable time for safe evacuation and fire rescue.

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 utility model discloses an expanded perlite preheating device, including an expansion furnace, a heat exchange cylinder, a storage tank, and a transfer silo. A feed hopper is located at the bottom of the expansion furnace, and a mixing and conveying pipe is located at the top of the expansion furnace. The mixing and conveying pipe passes through the heat exchange cylinder, which has a heat exchange channel with an inlet and an outlet. The heat exchange channel is not connected to the inner cavity of the heat exchange cylinder. The outlet of the storage tank is connected to the inlet of the heat exchange channel, and the outlet of the heat exchange channel is connected to the inlet of the transfer silo via a pipe. The outlet of the transfer silo adds material to the feed hopper via a pipe. The beneficial effects of this utility model are: the heat exchange channel within the heat exchange cylinder allows the perlite powder to exchange heat with the waste heat of the flue gas, thus preheating the perlite powder before it enters the expansion furnace, reducing energy consumption and improving the utilization rate of waste heat from the flue gas.

The invention discloses a site construction method for a perlite heat insulation layer of an LNG storage tank, and relates to the technical field of LNG storage tanks, and the site construction method comprises the following steps: step 1, increasing the number of perlite filling ports at the top of the tank, reducing a repose angle to 22 degrees when a connecting pipe is poured, and reducing gaps and uneven density; step 2, drying and replacing the perlite filler so as to reduce the moisture and oxygen content of the perlite filler; 3, the dried and replaced perlite filler is fed into perlite filling openings for filling, perlite is fed into a storage tank in a gas driving mode in the perlite filling process, in order to guarantee the online perlite filling effect and filling safety, the number of the filling openings is increased, the filling quality of expanded perlite is improved, and the production cost is reduced. The conditions of gaps and non-uniform density are reduced, so that the cold insulation effect is improved, the evaporation rate of the LNG storage tank is reduced, and the LNG in the storage tank is kept in an ideal storage state.

The application provides a method for preparing glassy single-cavity hollow particles by using perlite tailings, which can process the perlite tailings with a particle size less than 300 mesh into glassy single-cavity hollow particles with good roundness and high strength, so that the glassy single-cavity hollow particles can be used to make light aggregate thermal refractory materials, composite materials and filling materials of various engineering materials, etc., so that the waste resource of the perlite tailings with a particle size less than 300 mesh can be recycled, so as to avoid resource waste and ecological environment destruction. Moreover, the method for preparing glassy single-cavity hollow particles by using perlite tailings in the embodiment of the application adopts vertical roasting furnace bottom feeding, and realizes disaggregation and agglomeration of particles by adding triethanolamine, so that the perlite micro-powder raw material has good fluidity and dispersity, the agglomeration of the perlite micro-powder raw material with a particle size less than 300 mesh in the roasting process can be effectively prevented, and the perlite micro-powder raw material is prevented from being bonded on the side wall of the hearth to cause the hearth blockage.

The invention relates to an efficient and long-life inorganic dry powder coating with a self-humidifying function and a preparation method thereof, and belongs to the technical field of inorganic coatings. The inorganic dry powder coating comprises the following components in parts by weight: 30-40% of potassium silicate, 10% of expanded perlite, 10-25% of high-activity sepiolite nanofiber, 10% of calcined shell powder, 18-28% of quartz sand and 2-3% of an auxiliary agent. The preparation method comprises the following steps: firstly, treating a sepiolite raw material by virtue of a synergistic process of ultrasonic beam splitting and citric acid activation, so as to obtain high-activity sepiolite nanofibers which are fully dissociated, have nano hierarchical pore channels and are rich in hydrophilic groups; and compounding the high-activity sepiolite nanofiber with calcined shell powder, expanded perlite, quartz sand and potassium silicate to synergistically construct an inorganic coating system with optimized microstructure and efficient moisture absorption / liberation performance. The coating is simple in preparation process and environment-friendly, has excellent mechanical properties and self-humidity-regulating performance, still keeps an efficient humidity-regulating effect in a long-term service environment, and has outstanding long-acting stability.

The utility model provides a perlite plate drying device, which relates to the technical field of perlite plates, and comprises a workbench, a processing groove is arranged on the upper surface of the workbench, a conveying mechanism is arranged in the processing groove, a placing frame is movably arranged in the processing groove, the placing frame and the conveying mechanism are connected in a clamping manner, and the conveying mechanism is connected with the workbench in a clamping manner. And a plurality of raw materials are mounted at the upper end in the placement frame. Raw materials which are just pressed are respectively placed in the placing frames by a user to be stored, so that the situation that the raw materials are locally suspended or fractured due to vibration when the raw materials are transported by the user through a trolley is avoided, and then the raw materials are conveyed by the user through the cooperation of the first teeth and the second teeth. And a conveying belt is replaced to control the placement frame and the raw materials to move, so that the stability performance in the moving process of the placement frame is improved, and the microwave dryer can more stably and quickly dry the raw materials.

The invention relates to the technical field of building materials, and particularly discloses a green and environment-friendly thermal insulation building material and a preparation method thereof. The invention relates to a green environment-friendly thermal insulation building material, which comprises the following raw materials by weight: 20-30 parts of modified epoxy resin; 10 to 15 parts of polyurethane; 5 to 10 parts of flame-retardant vermiculite; 5 to 10 parts of kaolin; 6-10 parts of perlite powder; 8-12 parts of volcanic ash; 5-8 parts of asbestos; 5-8 parts of fly ash; 1-5 parts of a flame retardant; 5-10 parts of calcium carbonate; 3-6 parts of a heat stabilizer; 2-4 parts of a curing agent; and 100 to 150 parts of water. According to the heat-preservation and heat-insulation building material, the phosphorus-containing flame-retardant groups are grafted on the epoxy resin, and a phosphide film formed by heating phosphorus elements can effectively isolate oxygen and inhibit a combustion reaction, so that the flame-retardant property of the building material is effectively enhanced.

The application relates to the technical field of building materials, in particular to a cementing material for preparing an assembled wall body from multiple solid wastes and a preparation method; the cementing material is prepared from 25-55 parts of fly ash, 25-65 parts of blast furnace slag, 8-10 parts of lime, 1-5 parts of desulfurization gypsum, 3-6 parts of a first mixture, 2-5 parts of a second mixture and 5-8 parts of an alkali activator; the mass ratio of metakaolin, bentonite and superfine calcium carbonate in the first mixture is 3:2:1; the mass ratio of vermiculite, expanded perlite and glass beads in the second mixture is 2:2:1. The cementing material has a more stable microstructure through the synergistic activation of Ca and Na, and the addition of the first mixture and the second mixture. 2+ and Na + The C-S-H and C(N)-A-S-H gels form a three-dimensional network, needle-shaped ettringite crystals fill pores, and the anchoring effect of brucite phase is combined, so that the mechanical properties, such as strength and durability, of the material are significantly improved.

The application discloses a light formaldehyde-free flame-retardant board and a preparation method thereof, and relates to the technical field of boards. The flame-retardant board is prepared from formaldehyde-free components such as magnesium-based inorganic substances, plant fibers, hollow glass microbeads and modified expanded perlite. The modified expanded perlite is prepared by loading inorganic fillers on a carrier and combining with a flame retardant. The preparation process of the flame-retardant board comprises the following steps: step-by-step stirring and pulping, laying of reinforcing cloth, vacuum suction filtration forming, pre-solidification, maintenance and waterproof coating, and the like. The application effectively improves the brittleness of inorganic substrates, realizes the synergistic optimization of formaldehyde-free, light weight, flame-retardant performance and mechanical performance, is suitable for various scenes such as building decoration, and has good practical value.

The invention provides expanded perlite with a porcelain shell and a preparation method and application thereof, and the preparation method comprises the following steps: pretreating perlite ore to obtain first perlite particles; proportioning the first perlite particles and a binder according to a mass ratio, and uniformly mixing the first perlite particles and the binder to obtain second perlite particles; sequentially adding vitreous cladding powder and porcelain cladding powder into the second perlite particles for granulation to sequentially obtain A-type third perlite particles and B-type third perlite particles; carrying out drying and preheating treatment on the B-type third perlite particles to obtain fourth perlite particles; and carrying out high-temperature expansion treatment on the fourth perlite particles to obtain the expanded perlite with the porcelain shell. The ceramic shell expanded perlite prepared by the invention has a shell / core composite structure, the shell is a ceramic layer formed by sintering a ceramic cladding component, the core is an expanded product of the first perlite particles, and the ceramic shell expanded perlite has the characteristics of high expansion time, small bulk density, high cylinder compressive strength, low heat conduction coefficient, small water absorption rate, acid and alkali corrosion resistance and the like.

The present application relates to the technical field of building materials, and proposes a light acoustic noise reduction board with aerogel composite, which comprises a panel, a core material and a back plate from top to bottom; the core material comprises aerogel felt and rock wool from top to bottom; the rock wool comprises the following raw materials in parts by weight: 55-65 parts of basalt, 10-15 parts of dolomite, 10-15 parts of quartz sand, 20-30 parts of slag, 4-8 parts of a binder and 3-8 parts of modified filler; the modified filler is obtained by modifying filler with bisilane oligomer and DL-411D aluminum ester coupling agent; the filler comprises one or both of fly ash hollow microsphere and expanded perlite; the core layer of the light acoustic noise reduction board with aerogel composite is composed of aerogel layer and rock wool, so that the heat preservation and noise reduction performance can be considered; the addition of the modified filler in the rock wool can improve the noise reduction effect of the rock wool.

The invention relates to the technical field of thermal insulation mortar processing, in particular to thermal insulation mortar and a processing method thereof. The method comprises the steps that end covers on the two sides of a material containing barrel are controlled to rotate, and a cambered surface stirring plate is driven to shovel, turn up and beat and press mortar raw materials at the bottom of the material containing barrel; continuously adding a small amount of filler and admixture into the material containing barrel for multiple times; the mortar obtained by the processing method of the thermal insulation mortar comprises the following raw materials: cement, lime, silicate, a filler, an admixture and water. The filler comprises perlite, vermiculite and expanded perlite; the horizontal cylindrical container is used for containing thermal insulation mortar raw materials, and the size of the stirring structure is increased, so that in the rotating process of the stirring container, the materials in the container can be fully shoveled and turned up, and light materials are pressed to the bottom of the container in the continuous rotating process; the light material and the thermal insulation mortar raw material are fully mixed, and the layering condition of the light material in the preparation process of the thermal insulation mortar is reduced.

The present application relates to a kind of gasification slag coupling biochar preparation ceramsite adsorption material method, belong to solid waste resource technology field, comprising the following steps: step S1, prepare the following weight parts raw materials: 68-72 parts coal gasification slag, 9-12 parts cement, 8-10 parts sodium silicate water glass, 6-8 parts expanded perlite, 14-20 parts functionalized biochar, 130-150 parts modified liquid and 0.1-0.2 parts initiator;Step S2, preparation forming ceramsite roughcast;Step S3, modifier modification;The present application adds functionalized biochar and modifier, functionalized biochar contains hydroxyl, ester group, amide group, benzene ring and epoxy group biochar structure, not only can occur chelation with heavy metal cation, and can occur chemical crosslinking with modified liquid, form three-dimensional intercommunication network structure, through their common effect, improve the adsorption capacity of ceramsite adsorption material and chelating performance to metal ion.

The present application relates to the field of building materials, and more particularly to a perlite insulation board containing epoxy shell light balls and a preparation method thereof, the perlite insulation board is composed of expanded perlite, cement, epoxy shell light balls, glue powder, chopped fibers and water, wherein the epoxy shell light ball is a cage-shaped light microsphere formed by a plurality of hollow glass microspheres coated by epoxy resin glue, by pre-treating the hollow glass microspheres, the hollow glass microspheres are adhered together by the epoxy resin glue to form a cage-shaped mother particle of a plurality of hollow balls, then the expanded perlite powder, cement, glue powder and water are stirred to form a mortar, the epoxy shell light balls are added and stirred uniformly, and pouring, molding, drying and curing are performed to obtain the perlite insulation board, the present application can effectively reduce the bulk density of the insulation board and improve the heat insulation effect.

The utility model discloses a large -scale LNG storage tank dome structure, including outer tank wall, outer vault, inner tank wall and inner vault, and outer vault and inner vault are all the spherical shape of the convex upwards, and the lower extreme of outer vault is connected with the upper extreme of outer tank wall, and inner tank wall is located the inner side of outer tank wall, and the lower extreme of inner vault is connected with the upper extreme of inner tank wall, and outer vault, outer tank wall, inner vault and inner tank wall enclose the filling space, and the filling space is equipped with cold insulation material. The application reduces the height and gravity center of storage tank under the condition of same effective tank capacity, improves the operation and use condition of storage tank, makes storage tank more safe. Can improve LNG liquid level in operation, can reduce the storage tank shock isolation measure in construction. Realize the self -flow of perlite powder filling, self -compensation, guarantee the cold insulation quality of tank wall. Realize the good operation condition of cold insulation construction, cancel the construction of glass wool. Reduce the height of outer tank, reduce the construction material of outer tank.