257 results about "Aluminum silicate" patented technology

The invention provides an aluminum oxide aerogel composite material as well as a preparation method and application thereof, and belongs to the technical field of aluminum oxide aerogel preparation. The preparation method provided by the invention comprises the following steps: (1) preparing aluminum sol by taking coal gangue as an aluminum source; (2) mixing the aluminum sol obtained in the step (1) with aluminum silicate fibers, and performing gelation to obtain composite hydrogel; and (3) mixing the composite hydrogel obtained in the step (2) with ethanol, aging, mixing with a modifier, modifying, and carrying out graded normal-pressure drying to obtain the aluminum oxide aerogel composite material, the modifier in the step (3) is one or more of absolute ethyl alcohol, tetraethoxysilane and normal hexane. The alumina aerogel composite material prepared by the preparation method provided by the invention has the characteristics of low density, low heat conductivity coefficient and high strength, and is suitable for the high-temperature processing field of special materials and the aerospace field.

The invention belongs to the field of battery materials, and particularly relates to a high-adhesion battery diaphragm binder, slurry, a diaphragm and a preparation method of the high-adhesion battery diaphragm binder, and the high-adhesion battery diaphragm binder based on an acrylate copolymer is prepared through a specific reaction. And then, mixing the binder with two inorganic nano materials, namely a lithium-doped aluminum borosilicate nanowire and a sulfo-functionalized lithium zirconate titanate nanosheet, boehmite and / or aluminum oxide and the like, so as to prepare the high-adhesion diaphragm coating slurry. Wherein the nanowires provide mechanical enhancement and chemical crosslinking points, and the nanosheets improve the interface adhesion and the ionic conductivity. And finally, coating the slurry on the surface of a polypropylene diaphragm, and performing multi-stage drying and heat treatment to obtain the composite diaphragm. The diaphragm has extremely high coating bonding strength, excellent electrolyte wettability and good thermal dimensional stability and ionic conductivity, and is particularly suitable for high-energy-density lithium ion batteries and sodium ion batteries.

The invention belongs to the technical field of thermal insulation materials, and particularly relates to an aluminum silicate thermal insulation material and a preparation method thereof. The aluminum silicate thermal insulation material is prepared from the following raw materials in parts by weight: 60 to 80 parts of aluminum silicate fiber, 5 to 15 parts of polyvinyl alcohol fiber, 15 to 25 parts of function enhanced compound and 8 to 12 parts of silica sol, the polyvinyl alcohol fiber provides flexible bonding for the aluminum silicate fiber in the initial preparation stage, and the brittleness is improved; functional enhanced compound particles are dispersed in a fiber network, and a rigid framework of the functional enhanced compound particles and a flexible support of fibers form rigid-flexible complementation, so that the compression resistance is improved. The surface active sites of the silicon carbide aerogel activated and modified in the function enhancing compound are increased, the silicon carbide aerogel can be stably combined with polyimide chopped fibers through chemical bonds, and a compact interface layer can be constructed by means of permeation and coating of boehmite sol; the prepared aluminum silicate thermal insulation material has excellent thermal insulation effect and stable mechanical property.

The invention discloses foam concrete based on acidic iron tailing sand. The foam concrete comprises the following components in parts by weight: 200-500 parts of cement, 100-400 parts of acidic iron tailing sand, 50-150 parts of superfine slag powder, 15-25 parts of a composite acid-resistant foaming agent solution, 1-10 parts of composite fibers and 200-300 parts of water, the composite acid-resistant foaming agent solution is prepared by mixing a composite acid-resistant foaming agent and water, and the composite fiber comprises a combination of organic reinforced fiber and inorganic modified fiber. According to the preparation method, the long-term stability and the acid resistance of the foam concrete can be remarkably improved, and meanwhile, the overall performance of the foam concrete is remarkably improved by utilizing the acid resistance and the high temperature resistance of the polymer coated aluminum silicate fibers.

This invention discloses a gravure printing ink composition and its preparation method. The ink, by weight, comprises: 15-35 parts chlorinated polypropylene, 10-20 parts EVA-40W, 4-8 parts rosin-modified resin, 0.3-0.8 parts polyketide resin, 0.1-0.3 parts chlorinated ether resin MP45, 0.3-0.8 parts silica, 0.05-0.15 parts antistatic agent, 0.2-0.5 parts dispersant, 0.1-0.3 parts modified aluminum silicate AM660, 8-12 parts benzidine yellow, 6-10 parts fast red BHXL-T, 3-5 parts permanent orange yellow No. 13, 3-7 parts calcium powder, and 30-50 parts mixed solvent. During preparation, each resin is pre-dissolved separately, then mixed with pigments, additives, etc., and ground to a fineness ≤15μm. The ink of this invention has bright colors, good light resistance, excellent adhesion, antistatic properties, and printability, and is particularly suitable for gravure printing on polyolefin films.

The utility model discloses a high-temperature-resistant control cable for an electric transfer vehicle, which comprises a cable core, and aluminum silicate ceramic fiber ropes are filled in gaps of the cable core. A high-temperature-resistant high-strength alkali-free wax-free glass fiber tape is wrapped outside the cable core; a fire-resistant halogen-free flame-retardant polyolefin inner sheath is extruded outside the high-temperature-resistant high-strength alkali-free wax-free glass fiber tape, a high-temperature fire-resistant synthetic crystal insulating tape is lapped outside the fire-resistant halogen-free flame-retardant polyolefin inner sheath, and a second fluorocarbon resin nano coating is coated outside the high-temperature fire-resistant synthetic crystal insulating tape; a fluorocarbon resin nano coating is arranged outside the cable, a high-temperature-resistant basalt braided tube is arranged outside the fluorocarbon resin nano coating, a high-temperature-resistant factice aluminum-plastic composite belt is wrapped outside the high-temperature-resistant basalt braided tube, and a 150 DEG C halogen-free low-smoke irradiation polyolefin outer sheath is extruded outside the high-temperature-resistant factice aluminum-plastic composite belt, so that the use requirements in high-temperature and high-heat radiation environments are met; and the electric transfer trolley also has the advantages of fire prevention, corrosion resistance, aging resistance, high strength, impact resistance and the like, and provides powerful guarantee for safe operation of the electric transfer trolley.

The utility model discloses a novel crucible for synthesizing silicon carbide powder, which comprises a crucible main body, the outer surface of the crucible main body is connected with a slow heating and cooling mechanism, the two sides of the slow heating and cooling mechanism are both fixedly connected with connecting blocks, one end of each connecting block is fixedly connected with a dismounting and fixing mechanism, and the other end of each connecting block is fixedly connected with a connecting rod. The slow heating and cooling mechanism comprises ceramic fibers, aluminum silicate fibers and perlite, the ceramic fibers are connected to the outer surface of the crucible body, the aluminum silicate fibers are connected to one ends of the ceramic fibers, and the perlite is arranged between the ceramic fibers and the aluminum silicate fibers; the crucible is simple in structure and reasonable in design, the phenomenon that when the temperature of the crucible body changes violently, the crucible body is broken or deformed due to thermal shock, and the whole synthesis process of materials is affected is avoided, the disassembly and assembly fixing mechanism comprises the insertion rod, the telescopic rod and the spring, the trouble of repairing the whole crucible body in the later period is avoided, and the maintenance cost in long-term use is reduced.

The present solution provides a hybrid coagulant based on aluminum-iron silicate, where the molar concentration of silicon is in the range of 0.1 to 0.5 mol∙l-1, the molar ratio of the sum of aluminum and iron to silicon is in the range of 1:0.5 to 1:1.5, the molar ratio of aluminum to iron is in the range of 0.5:1 to 5:1, and a method of its preparation by mixing hydrated aluminum sulfate, hydrated iron sulfate and an acidic solution of silicon dioxide.

A semiconductor device includes a lower wiring structure disposed within a lower interlayer insulating film, and the lower wiring structure including a lower barrier film and a lower filling film disposed on the lower barrier film, a wiring isolation pattern extending along an upper surface of the lower interlayer insulating film, in contact with the lower interlayer insulating film, and the wiring isolation pattern including aluminum silicate, an upper interlayer insulating film disposed on the lower wiring structure and the wiring isolation pattern, and an upper wiring structure disposed within the upper interlayer insulating film and connected to the lower wiring structure.

The utility model belongs to the technical field of furnace throat expansion joints, and particularly relates to a furnace throat expansion joint which comprises a corrugated pipe, connecting pipes are connected to the two ends of the corrugated pipe, a connecting flange is connected to the end, away from the corrugated pipe, of each connecting pipe, and a first guide cylinder is arranged in each connecting flange. A first aluminum silicate fiber cotton layer is arranged between the first guide cylinder and the connecting pipe, a second guide cylinder is arranged at one end in the first guide cylinder, and a second aluminum silicate fiber cotton layer is arranged between the second guide cylinder and the first guide cylinder. The sealing groove is formed in the surface of the connecting flange, the sealing rubber strip is bonded in the sealing groove, after the connecting flange is connected, the protruding part of the sealing rubber strip is squeezed, and therefore the sealing effect of the connecting position of the connecting flange is improved; and a user can take out the damaged sealing rubber strip in the sealing groove from the groove, so that the sealing rubber strip is convenient to replace.

The novel charging structure comprises a furnace bottom and furnace walls on the two sides, a layer of furnace bottom carbon black is laid on the furnace bottom of the graphitization furnace, and a furnace core area is installed in the center of the furnace bottom carbon black. A layer of graphite felt, a layer of carbon felt and a layer of aluminum silicate are sequentially filled on the furnace bottom carbon black and between the two sides of the furnace core area and the furnace walls on the two sides from inside to outside, a heat preservation wall is formed by the layer of graphite felt, the layer of carbon felt and the layer of aluminum silicate, and a resistance material and an upper heat preservation material are sequentially laid above the furnace core area and the heat preservation wall from bottom to top. Vent holes are formed in the upper portion of the furnace core area. The aluminum silicate, the carbon felt and the graphite felt are sequentially adopted in the area from the furnace wall to the furnace core to replace side face heat preservation material powder, the graphite felt is close to the crucible wall or the box plate wall, the heat insulation performance is good, the graphite felt is resistant to high temperature, the aluminum silicate is close to the furnace wall, the carbon felt is arranged between the aluminum silicate and the graphite felt, and the aluminum silicate, the carbon felt and the graphite felt jointly form a heat preservation wall. And a heat preservation effect is achieved on the graphitization furnace.

The utility model discloses a fiber folding block corner trimming device, which belongs to the technical field of fiber block corner trimming equipment, and comprises a trimming platform and a containing frame arranged above the trimming platform, an aluminum silicate fiber folding block is embedded in the containing frame, and the aluminum silicate fiber folding block is arranged in the containing frame. A fastening mechanism is installed on the trimming platform, moving plates are slidably arranged at the two ends of the trimming platform, a second double-thread lead screw is rotatably installed between the two moving plates, and double-edge trimming knives are adjustably installed at the two ends of the second double-thread lead screw. The sliding rod drives the double-edge trimming cutter to cut the aluminum silicate fiber folding block protruding out of the side wall of the containing frame, the moving plate synchronously moves in the moving process of the double-edge trimming cutter, and the aluminum silicate fiber folding block in the containing frame is conveniently trimmed.

The invention relates to an enhanced multi-pollutant synergistic removal ceramic plate type filter box, and belongs to the technical field of industrial flue gas purification. The filter box comprises a box frame skeleton, a positioning groove, a ceramic fiber plate, a sealing washer, a pressing plate and a bottom sealing plate, and an air inlet area, a filter reaction area and an air outlet area can be formed in the airflow direction; flange connecting plates are arranged at the bottom of the box frame skeleton, and multi-module series expansion is supported. The ceramic fiber plate takes aluminum silicate fiber as a matrix, is subjected to negative pressure suction filtration and high pressure pressing, is reinforced by silica sol at the periphery, and is internally integrated with a plurality of catalytic functional layers. And the positioning grooves are provided with chamfers and are matched with the rivet nuts, so that the single plate replacement efficiency is high. Through the innovative filter box and filter plate structure, multiple functions of dust removal, denitration, decarburization and the like are integrated in a single ceramic plate unit, the system structure is greatly simplified, the occupied area and equipment investment are reduced, and the problems that a traditional filter pipe is small in filter area and large in equipment occupied area are solved.

The invention relates to a product for use in energy generation and to the corresponding method for producing the product. In said method, a water molecule is primarily enclosed in a grid structure with nano cavities in order to provide quantum mechanical effects, and is positioned between two conductive metal layers. A mixture of at least hydrated aluminium silicate is used as the product positioned between the conductive materials.

The solid heat storage equipment with the high heat storage temperature comprises a heat storage body and a heat preservation mechanism, the heat storage body comprises heat storage bricks and an electric heating wire assembly, the electric heating wire assembly comprises a connecting plate and a spiral electric heating wire connected to the connecting plate, and the heat preservation mechanism comprises a side wall, a top wall and a concrete foundation. The side walls and the top wall each comprise an outer heat preservation layer, an inner heat preservation layer and a phase change heat storage module located between the outer heat preservation layer and the inner heat preservation layer. The phase change heat storage module comprises a phase change heat storage module shell, a heat preservation layer heat exchange pipe is installed in the phase change heat storage module shell, and the phase change heat storage module shell is filled with a phase change heat storage material. The inner heat preservation layer is an aluminum silicate fiber module. And a foundation layer heat exchange pipe is pre-buried in the concrete foundation. By improving the heating wire material, the heat preservation measure, the heat accumulator structure and the like, the problems that the heating wire is poor in temperature resistance and short in service life in the high-temperature environment, the external heat preservation measure is difficult to meet the requirement, and the heat accumulator is prone to deformation are solved.

The utility model discloses a top sealing device for a drying furnace, which belongs to the technical field of drying furnace sealing, a first sealing piece comprises a C-shaped steel structure, a cavity is arranged on the side wall of the C-shaped steel structure, an aluminum silicate wool layer is arranged on the inner wall of the C-shaped steel structure, a plurality of inserting holes are arranged on the end face of the C-shaped steel structure, and the inserting holes are communicated with the cavity. An inserting hole is formed in the top of the C-shaped steel structure, an L-shaped fastening rod is inserted and connected into the inserting hole, a threaded part is arranged at the lower end of the L-shaped fastening rod, a first fastening head and a second fastening head are mounted at the threaded part, and the C-shaped steel structure is hermetically connected with the top of the drying furnace through the L-shaped fastening rod, the threaded part and the fastening heads. The aluminum silicate wool layer is laid on the inner wall of the C-shaped steel structure to provide high-temperature-resistant and heat-insulating functions, heat loss is reduced, and safety and stability of the device are enhanced. The design of the L-shaped fastening rod and the fastening head ensures firm sealing connection between the C-shaped steel structure and the top of the drying furnace. The spring steel plate replaces a rubber plate, the sealing effect of the power and free chain and the hoist conveying structure is improved, the maintenance cost is reduced, and the product quality is improved.

The invention belongs to the technical field of concrete materials, and particularly relates to corrosion-resistant concrete for shield tunnel segments and a preparation method of the corrosion-resistant concrete. The concrete comprises sulphoaluminate cement, fly ash, slag powder, machine-made sand, gravel, a polycarboxylate superplasticizer, a defoaming agent, water and two key modified components, wherein the two key modified components comprise a layered double hydroxide-aluminum silicate nanosheet compound and a phosphate radical intercalation modified strontium molybdate slow-release corrosion inhibitor. During preparation, firstly, all the dry materials are put into a stirrer for dry mixing, then water and the additive are added for stirring to obtain mixed slurry, and a finished product is obtained after pouring, vibrating and steam curing. Wherein the two modified compounds are synthesized through a specific process, the former can adsorb corrosive ions and refine pores, and the latter can slowly release corrosion-inhibiting ions to protect reinforcing steel bars. The prepared concrete has excellent chloride ion penetration resistance, sulfate erosion resistance and carbonization resistance, the durability is remarkably improved, and the concrete is particularly suitable for shield tunnel segments in the severe corrosion environment.

The invention discloses a method for synergistically preparing aluminum silicate fibers by using coal-based solid waste, and relates to the field of inorganic non-metallic materials. The preparation method comprises the following steps: pretreating raw materials: crushing coal gangue to below 100 meshes, calcining at 700-900 DEG C for 1-2 hours for activation, pickling fly ash with 1-12% hydrochloric acid at 40-80 DEG C, and drying to remove CaO and MgO impurities; after the two treatments, the coal gangue accounts for 10%-90%, the fly ash accounts for 90%-10%, and 2%-10% of iron tailings are added to adjust the melt viscosity, so that the mass ratio of Al2O3 to SiO2 in the mixture is 0.8-1.8; melting and fibration: melting the mixture in an electric arc furnace at 1500-1700 DEG C for 1-8 hours, and controlling the melt viscosity to be 2-8 Pa.s; and the molten liquid is fiberized by adopting a blowing or thread throwing process and then cooled to prepare the aluminum silicate fiber, and the obtained fiber has the characteristics of high tensile strength, low heat conductivity coefficient, excellent high-temperature resistance and the like. The method reduces the raw material cost and melting temperature, is high in resource utilization rate, has good economical efficiency and environmental protection property, and is suitable for the fields of high-temperature heat preservation, industrial heat insulation and the like.

The application discloses a two-stage lithium-aluminum silicate transformation roasting system and method, and overcomes the shortcomings of low heat resistance and high cost of a whole electromagnetic induction heating cylinder by adopting a lithium-aluminum silicate transformation roasting system of a first-stage electromagnetic induction heating plus a second-stage sulfur oxidation self-heating, and has the advantages of long service life and low investment cost. In addition, the lithium-aluminum silicate transformation roasting is carried out in a clean way of electricity plus sulfur reaction heat, and is environment-friendly and low-carbon. The application is suitable for regions rich in electricity but lacking in fuels such as coal and natural gas and weak in logistics foundation.

The application belongs to the technical field of inorganic nonmetallic cementing material, and provides a phosphorus aluminum silicate inorganic polymer and a preparation method and application thereof.The phosphorus aluminum silicate inorganic polymer comprises the following preparation raw materials in parts by weight: 50-67 parts of precursor raw material, 33-50 parts of excitation agent, and water; the precursor raw material comprises metakaolin and active calcium oxide; the active calcium oxide accounts for 3-15% of the weight of the precursor raw material; and the excitation agent comprises a phosphoric acid solution.The phosphorus aluminum silicate inorganic polymer product obtained by the formula can not only meet the requirement that the pH value of the high-level waste geological disposal repository sealing material is less than 11, but also can effectively support fissures and broken rocks, and meet the use requirement of the high-level waste geological disposal repository sealing and reinforcing material.The addition of the active calcium oxide in the precursor raw material can significantly improve the working performance and compressive strength of the traditional acid-excited metakaolin-based inorganic polymer.

This application relates to the field of lithium aluminum silicate glass technology, and provides a high Young's modulus lithium aluminum silicate substrate glass and its chemically strengthened glass. The substrate glass, based on the molar percentage of oxides, comprises the following components: SiO2 60.0-70.0 mol%; Al2O3 8.0-15.0 mol%; MgO 1.0-8.0 mol%; Li2O 7.0-12.0 mol%; Na2O 2.0-5.0 mol%; and Y2O3 and La2O3; wherein Y2O3+La2O3 is 4.0-8.0 mol%. The chemically strengthened glass is obtained by chemically strengthening the substrate glass. The substrate glass and chemically strengthened glass of this application have reasonable component contents, achieving a good combined effect. The combination of components results in a glass with high Young's modulus and high stress performance, good acid resistance, and excellent mass production performance, meeting the development needs of cover glass in high-end mobile phone products.

The utility model relates to the technical field of submerged arc furnaces, in particular to a direct current submerged arc furnace electrode framework beam structure water-cooling furnace cover. The furnace cover comprises a furnace cover body and furnace cover stand columns for supporting the furnace cover body. The furnace cover is composed of a central cover plate on the inner side of the electrode and a water-cooling upper cover plate around the central cover plate, and two flue gas leading-out flues are arranged on the two sides of the furnace cover; a box type water cooling beam is arranged between a furnace cover and a furnace cover stand column, a water cooling upper cover plate and a center cover plate are laid at the upper end of the box type water cooling beam, and a sealing aluminum silicate rock wool product is tightly pressed between the cover plate and the box type water cooling beam through self weight. The upper plane of the furnace cover adopts a water-cooling box girder structural form, so that the furnace cover has very high bending strength structurally. The modularized water-cooling coaming, the water-cooling upper cover plate and the central cover plate are adopted, replacement is simpler and more convenient, maintenance and spare parts can be more specific, and large-area disassembly and replacement are not needed. The sealing mode is achieved through heating expansion of parts, and the sealing effect is better when the parts expand.

The invention discloses a doxazosin mesylate sustained-release tablet and a preparation process thereof, and relates to the technical field of doxazosin mesylate sustained-release tablets.The sustained-release tablet comprises a double-layer tablet core composed of a first sustained-release layer and a second sustained-release layer; the double-layer tablet core is prepared from the following components in parts by mass: a first slow-release layer and a second slow-release layer; the first slow-release layer is prepared from the following components in parts by mass: 2.4 parts of chitosan-TPP modified doxazosin mesylate, 10 to 12.5 parts of citric acid-cassava starch, 12.5 to 15 parts of magnesium aluminum silicate-cassava starch, 40 to 60 parts of microcrystalline cellulose and 3 to 4 parts of magnesium stearate; the second slow-release layer is prepared from the following components in parts by weight: 2.4 parts of chitosan-TPP modified doxazosin mesylate, 1.44 to 3.36 parts of carrageenan, 130 to 140 parts of polyethylene oxide, 30 to 40 parts of sodium alginate, 55 to 65 parts of citric acid, 67 to 77 parts of microcrystalline cellulose and 3 to 4 parts of magnesium stearate.

A prefabricated overhead thermal-insulation steam elbow, comprising an elbow steel pipe body (1), wherein a plurality of thermal insulation layers are provided outside the elbow steel pipe body. The plurality of thermal insulation layers sequentially comprise, from inside to outside, a thermal insulation layer (2), an inner thermal isolation layer (3), a soft-hard dual-material composite thermal insulation layer (4), an outer thermal insulation layer (5), an outer isolation layer (6), and an outer protective layer (7); the soft-hard dual-material composite thermal insulation layer (4) is composed of hard thermal insulation material (41) and soft thermal insulation material (42) which are alternately arranged in sequence in the axial direction of the elbow steel pipe body (1); the hard thermal insulation material is a gored elbow formed by calcium silicate tiles; and the soft thermal insulation material is aluminum silicate, glass wool, and nano-aerogel felt filling the space between adjacent hard thermal insulation material sections. The structure can not only effectively avoid falling-off, deformation and shifting of the thermal insulation layers due to pipe expansion during operation, but also can enhance the overall strength and stability of the thermal insulation layers, thereby reducing damage to the thermal insulation layers caused by external collision.

The application relates to a lithium-aluminum silicate glass, a preparation method thereof and a cover plate glass. The preparation method of the lithium-aluminum silicate glass comprises the following steps: performing gradient temperature preheating treatment on a semi-finished glass to prepare a first intermediate body; performing first chemical strengthening treatment on the first intermediate body to prepare a second intermediate body; and performing second chemical strengthening treatment on the second intermediate body to prepare the lithium-aluminum silicate glass; wherein the gradient temperature preheating treatment satisfies that the temperature rising rate is 5.5 DEG C / min to 12.5 DEG C / min, the temperature rising time is 25 min to 45 min, and the terminal temperature is 200 DEG C to 400 DEG C. The preparation method can effectively improve the surface compressive stress and ion exchange layer depth of the lithium-aluminum silicate glass, and makes the lithium-aluminum silicate glass show good impact resistance and good drop resistance.

The invention discloses a silicon removal agent and application thereof in alkaline vanadium-containing leachate, and the silicon removal agent is obtained through the following steps: taking aluminum-containing silicon removal slag as a raw material, putting the aluminum-containing silicon removal slag into a NaOH solution, continuously stirring, filtering, collecting solids, drying and grinding to obtain the silicon removal agent, wherein the pH (Potential of Hydrogen) value of the NaOH solution is 8.0 to 10.0; the NaOH solution also contains cationic polyacrylamide, and the concentration of the cationic polyacrylamide is 0.1 to 0.3 mg / ml; the stirring temperature is 80 to 95 DEG C, and the temperature is kept for 60 to 120 minutes. Alkaline vanadium-containing leachate obtained through a sodium salt roasting-water leaching process of vanadium-containing raw materials (vanadium slag and the like) is used as a raw material, aluminum salt (aluminum sulfate, sodium metaaluminate and the like) is used as an impurity removal agent, precipitate sodium aluminosilicate hydrate is added, a sodium aluminosilicate porous material is obtained after treatment, and the sodium aluminosilicate porous material can be used as a silicon removal agent and precipitate floc. And removing silicon impurities in the solution under a weakly alkaline condition.

The invention relates to low-carbon waterproof concrete, which is prepared from the following raw materials in parts by weight: 234 to 320 kg / m of cement, 74 to 141 kg / m of coal ash, 94 to 99 kg / m of mineral powder, 644 to 748 kg / m of fine sand, 1033 to 1145 kg / m of broken stone, 148 to 150 kg / m of water, 4.93 to 5.60 kg / m of water reducing agent and 0.82 to 0.93 kg / m of microcapsule, wherein a core material of the microcapsule is prepared from the following raw materials in percentage by weight: 60% of polycaprolactone, 25 to 30% of magnesium aluminum silicate inorganic gel, 5 to 10% of tromethamine and 5 to 10% of cerium oxide, and a wall material of the microcapsule is prepared from the following raw materials in percentage by weight: 60 to 80% of styrene-maleic anhydride copolymer and 20 to 40% of trimethoxysilane. The problem that existing waterproof concrete generates a large amount of hydration heat, cracks appear in the concrete, and then the waterproof performance is affected is solved, and the waterproof concrete has the advantages of improving the compression resistance and the waterproof and anti-seepage performance.

The present application relates to the technical field of power facility fire and explosion prevention, in particular to an integrated anti-explosion and fireproof bushing sealing system structure and a construction method thereof. The system is used for sealing the holes of the valve side bushing wall penetration of a converter transformer, and is designed in a multi-layer symmetrical integrated manner from inside to outside, comprising: a high-temperature vulcanized silicone rubber assembly as a sealing layer; a high-strength magnesium fireproof plate anchored on an anti-explosion and fireproof plate as an anti-explosion and fireproof ring layer; a composite filling layer formed by alternately filling with an aluminum silicate fiber blanket and a flexible expansion fireproof mortar; and a central aluminum silicate fiber blanket heat insulation layer. During construction, a double-node mechanical anchoring and flexible fireproof sealant combination method is used for sealing. The present application solves the problems of the prior art that the anti-explosion and fireproof performance is difficult to be considered together and the construction is complex, and provides an integrated sealing scheme with stable structure, durable sealing, standardized construction and excellent anti-explosion and fireproof performance.

The parallel flow heat accumulating type double-hearth lime kiln comprises a hearth kiln I and a hearth kiln II, preheating zones are arranged at the upper end of the hearth kiln I and the upper end of the hearth kiln II, calcining zones are arranged in the middle of the hearth kiln I and the middle of the hearth kiln II, cooling zones are arranged at the lower end of the hearth kiln I and the lower end of the hearth kiln II, and cooling zones are arranged at the lower end of the hearth kiln II. A connecting channel is arranged at the joint of the first hearth kiln and the second hearth kiln. According to the double-chamber lime kiln, the damaged arc-shaped shell can be detached through the detachable chamber kiln shell, maintenance or overhaul is convenient, in addition, the reinforcing plates, the reinforcing grooves and the reinforcing pipes are arranged on the outer surface of the arc-shaped shell, the compression resistance and impact resistance of the double-chamber lime kiln are improved, the service life of the double-chamber lime kiln is prolonged, and the service life of the double-chamber lime kiln is prolonged. By arranging the heat preservation and insulation blocks made of the aluminum silicate ceramic fiber materials and combining the refractory lining built by the refractory bricks, the heat preservation and insulation performance is good, heat loss is effectively reduced, energy is saved, and consumption is reduced.

Product for use in energy generation, consisting of a mixture of at least hydrated aluminum silicate.