209 results about "Glass wool" patented technology

The utility model belongs to the technical field of numerical control machine tools, and discloses a low-noise numerical control inclined turning structure which comprises a numerical control inclined turning machine body, a noise protection structure is arranged outside the numerical control inclined turning machine body, and a groove used for receiving cutting chippings is formed in the middle of a machine tool of the numerical control inclined turning machine body. The noise protection structure comprises a servo motor installed on the left side face of the numerical control inclined turning machine body, a worm fixedly connected with the output end of the servo motor and a rotating rod, the rotating rod penetrates through the numerical control inclined turning machine body, and the outer portion of the rotating rod is fixedly connected with a shielding cover. When the rotating rod rotates, the worm is driven to rotate, the worm gear meshed with the worm rotates along with the worm, then the rotating rod drives the shielding cover to rotate by 90 degrees to the top face of the numerical control inclined turning machine body, a working area is covered, the glass wool boards on the two sides of the inner wall of the shielding cover can effectively absorb noise, the influence of the noise on the surrounding environment is reduced, and a quiet working environment is created for operators.

The present invention relates to a thermal and / or acoustic insulation product for filling a building element comprising two facing walls forming a cavity, the product comprising blown glass wool forming flakes, the product comprising a hydrophobic additive, the hydrophobic additive being a branched and cross-linked organosilicon polymer compound, a median flake size being less than 20 mm.

1. The name of the design product: loading and unloading device. 2. The use of the design product: loading and unloading rock wool or glass wool. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The utility model relates to a glass wool processing mode rapid switching device which comprises a rack, a material feeding end, a material discharging end, a material conveying device and a material conveying device, the second conveying mechanism is used for driving glass wool to be horizontally conveyed, the material feeding end is arranged at the rack, the end, away from the rack, of the second conveying mechanism is provided with an unwinding conveying mechanism used for obliquely and upwards conveying glass wool to the second conveying mechanism, and the side, away from the unwinding conveying mechanism, of the rack is provided with a crimping machine; a rolling conveying mechanism is arranged at the material leading-out end of the machine frame, a paper cutting mechanism is arranged on one side, close to the rolling conveying mechanism, of the machine frame, and the paper cutting device can adapt to rapid switching of various products with different lengths, different thicknesses and the like. Through the ingenious design and cooperative work of all the mechanisms, such as the rapid adjustment function of the lifting conveying assembly, the cotton pressing conveying mechanism and the like, switching from glass wool roll production to glass wool board production or among products of different specifications can be completed in a short time, and the product switching period is greatly shortened.

The utility model belongs to the field of heat preservation structures, particularly relates to a building energy-saving heat preservation structure, and aims to solve the problems that a plurality of L-shaped clamping blocks are connected one by one in the prior art, the connectivity between heat preservation structures is poor, and the integrality is low, and provides the following scheme that the building energy-saving heat preservation structure comprises a wall body, and a cement leveling layer is arranged on one side of the wall body; an adhesion layer is arranged on one side of the cement leveling layer, a plurality of expanded polystyrene boards are arranged on one side of the adhesion layer, second reinforcing layers are arranged on one sides of the expanded polystyrene boards, the same glass wool fireproof layer is arranged on one sides of the second reinforcing layers, a first reinforcing layer is arranged on one side of the glass wool fireproof layer, and a second reinforcing layer is arranged on one side of the first reinforcing layer. The building energy-saving heat preservation structure has the advantages that the building energy-saving heat preservation structure has remarkable advantages in the aspects of heat preservation performance, structural stability, crack resistance, waterproof performance, construction convenience, environmental protection sustainability and the like, and a new solution is provided for energy conservation and heat preservation of modern buildings.

The invention relates to the technical field of fiber manufacturing, and discloses glass wool blowing equipment based on multistage circular seam blowing, which comprises a shell, a mixing tank is fixedly mounted at the bottom of the shell, the shell is communicated with an inner cavity of the mixing tank, and two groups of vent pipe orifices are symmetrically formed in the outer wall of the bottom of the mixing tank. And an adjusting assembly for adjusting the size of the air injection circular seam in a multi-stage manner is rotationally mounted on the lower surface of the mixing tank. According to the equipment, through a twisting barrel, a telescopic sleeve, a first lip ring, a second lip ring and a third lip ring, the twisting barrel is rotated, the telescopic sleeve is driven to retract inwards or extend outwards through the interaction of the twisting barrel and threads of the telescopic sleeve, the telescopic sleeve drives the three sets of lip rings to synchronously move so as to change the distance between the lip rings and the inner wall of a shell, and multi-stage adjustment of the size of an air injection circular seam is achieved; and the production specification and variety range of the equipment is expanded.

The utility model relates to the technical field of machine rooms, and discloses a machine room capable of isolating noise, which comprises a machine room body, a ventilation box is fixedly arranged in the middle of the upper end of the machine room body through bolts, and a smoke removal box mechanism is fixedly arranged on the rear side of the upper end of the machine room body through bolts. A protection box is fixedly arranged on the front side of the upper end of the machine room body through bolts, the smoke removal box mechanism comprises a fixing box, two smoke suction fans are fixedly arranged on the inner bottom face of the fixing box through bolts, smoke exhaust pipes are fixedly arranged at the output ends of the two smoke suction fans through bolts, and the machine room body comprises a glass wool board. And a wave crest sound absorption sponge is fixedly arranged on one side of the glass wool board. According to the machine room, the machine room body is composed of various materials such as the polyester fiber sound absorption boards, the rock wool boards, the glass wool boards, the wave crest sound absorption sponge and the sound insulation felt, the advantages of the materials in the aspects of sound absorption, heat insulation, fire prevention, moisture prevention and the like are complementary, and an efficient sound insulation structure is formed.

The invention discloses a preparation method and application of a tensile mica tape based on polyimide film dielectric reinforcement, and relates to the technical field of mica tape preparation. The invention aims to solve the problem of low dielectric strength of the traditional main insulation mica tape of the offshore high-voltage wind driven generator. The method comprises the following steps: bonding the mica paper and the polyimide film, or bonding the mica paper, the polyimide film and the glass wool cloth, and then carrying out hot pressing and curing to obtain the polyimide film dielectric reinforcement-based tensile mica tape. The tensile mica tape based on polyimide film dielectric reinforcement is applied to a main insulating material of a stator bar of an offshore high-voltage wind driven generator. The invention can obtain the preparation method and application of the tensile mica tape based on dielectric reinforcement of the polyimide film.

The utility model discloses a manufacturing device of a glass wool product with good thermal insulation performance, which comprises a processing table, a driver and a cotton rolling device, two baffles are arranged on the processing table, a push plate and a limiting plate which are arranged on the processing table are respectively arranged on the left side and the right side of each baffle, a plurality of cotton outlets are arranged on the surface of each limiting plate, and the cotton rolling device is arranged on the left side and the right side of each baffle. The driver is installed on the lower surface of the processing table and controls the push plate to move towards the limiting plate, the cotton rolling device is installed on the right side of the processing table, a barrel shell is placed on the surface of the processing table, and two baffle rings are connected to the barrel shell in a sleeving mode. The glass wool is placed between the push plate and the limiting plate, the glass wool is taken through the wool outlet, when the glass wool beside the hand is taken, the electric cylinder controls the push plate to move, the push plate pushes the glass wool to the wool outlet, the glass wool beside the hand can be automatically supplemented, the manual participation step is reduced, and the production efficiency of the glass wool pipe is improved.

The utility model discloses a glass wool processing belt conveyor line with a limiting structure, and relates to the field of belt conveyor lines, the glass wool processing belt conveyor line comprises a support rotating base, a fixed driving motor is arranged above the support rotating base, and an output end of the fixed driving motor is provided with a meshing sliding mechanism for moving an anti-falling top plate back and forth; the meshing sliding mechanism comprises a goods conveying belt. According to the glass wool processing belt conveying line with the limiting structure, when glass wool is conveyed, a fixed driving motor is started to convey goods to work, meanwhile, a first meshing gear is further moved, and the first meshing gear rotates to drive a limiting rotating rod through a second meshing gear; and when the limiting rotating rod is attached to the side face of the goods conveying belt to rotate, the side face of the glass wool is protected, so that the goods cannot fall off in the transportation process, operation is easier and more convenient, and use is easy.

The invention relates to the technical field of thermal insulation materials, and provides a glass wool thermal insulation material and a preparation process thereof, the glass wool thermal insulation material comprises the following raw materials: glass fibers and an adhesive; the glass fiber is prepared from, by mass, 100 parts of waste glass, 6-8 parts of borax, 4-6 parts of quartz sand, 3-4 parts of limestone, 4-6 parts of kaolin, 4-6 parts of flint clay and 1-2 parts of aluminum oxide whiskers. The ratio of the total mass of the quartz sand, the kaolin and the flint clay to the mass of the aluminum oxide whiskers is (7.25-15.5): 1. According to the technical scheme, the problem of low glass fiber strength in a glass wool thermal insulation material in related technologies is solved.

The utility model belongs to the field of glass wool cutting, and particularly relates to an automatic cutting device for glass wool production, which comprises a cutting table, a sliding rail is fixedly arranged on the upper portion of the cutting table, an electric sliding block is slidably arranged on the sliding rail, and a cutting blade is fixedly arranged at the bottom of the electric sliding block. And two mounting plates which are symmetrically distributed front and back are fixedly arranged on the left side of the sliding rail, a fixing mechanism for fixing glass wool is jointly arranged between the two mounting plates, and the fixing mechanism comprises a cylinder arranged on the mounting plates in a sliding and penetrating mode. According to the glass wool cutting device, through the linkage design of the electric sliding block, the push plate, the travel switch and the trigger block, continuous cutting of glass wool is achieved, and therefore the cutting efficiency of the glass wool is greatly improved; and meanwhile, automatic lifting of the pressing plate is achieved in the glass wool cutting process, shaking or deviation in the cutting process is avoided, the cutting stability is ensured, and then the glass wool cutting effect is ensured.

This invention discloses a zero-discharge system and method for rinsing circulating water in glass wool production, belonging to the field of wastewater treatment and recycling technology in glass wool production. The system includes a spray rinsing unit, a wastewater collection unit, a solid-liquid separation unit, and a recycling pipeline unit. The spray rinsing unit is located in the fiber accumulation area of ​​the glass wool production line. The wastewater collection unit collects the mixed water containing glass fiber waste wool generated during rinsing. The solid-liquid separation unit separates the glass fiber waste wool and obtains circulating water through a sewage pump and a vibrating screen. The recycling pipeline unit returns a portion of the circulating water to the spray rinsing unit and another portion to the binder preparation system. The system can also adjust the spray state of the direct spray nozzles according to the vibration value of the forming fan and adjust the sewage pump flow rate according to the processing state of the vibrating screen. This invention can achieve internal circulation and production consumption utilization of rinsing water under normal continuous production conditions, reducing wastewater discharge and improving production continuity and binder utilization rate.

A method of manufacturing a mineral fibre product wherein the mineral fibre product is selected from a non-woven mineral fibre veil, mineral wool insulation, glass wool insulation and stone wool insulation, and wherein the method comprises: - applying an aqueous, curable binder composition to non or loosely assembled mineral fibres to provide resinated mineral fibres; and - subjecting the resinated mineral fibres to heat to cure the aqueous, curable binder composition and to form the mineral fibre product; - wherein the aqueous, curable binder composition applied to the mineral fibres comprises: 1) reducing sugar(s), 2) inorganic ammonium salt(s), 3) organic amine(s) having a pka of 7.5 or more and of 9.0 or less; and 4) optional additive(s), notably silane coupling agent(s).

The application discloses a kind of high-efficiency heat-insulating glass wool products and preparation method thereof, the glass wool includes multiple glass fibers, the surface of the glass fiber is infiltrated with composite heat-insulating coating, the interstitial filling of the glass fiber is filled with composite heat-insulating filler;The component of the composite heat-insulating coating includes epoxy resin 30-50 parts by weight, hydroxyl acrylic resin 10-15 parts, silicone resin 10-15 parts, high-chlorinated polyethylene 5-10 parts and auxiliary agent 3-5 parts;The composite heat-insulating filler includes hollow glass microbeads, hollow ceramic microbeads, functional filler filled in micropore of hollow glass microbeads and hollow ceramic microbeads and filler adhesive component, the advantage of the application is that the composite heat-insulating coating and the composite heat-insulating filler are supplemented for traditional glass wool, on the one hand, the heat-insulating performance of the overall glass wool is greatly improved, on the other hand, the structural strength of the overall glass wool is also effectively improved.

The utility model discloses a fireproof glass wool board with a thermal insulation structure, which comprises a glass wool board and a connecting board, the glass wool board comprises a fireproof layer and a glass wool core layer, the glass wool core layer is arranged at the bottom of the fireproof layer, a reinforcing plate is arranged between the fireproof layer and the glass wool core layer, a thermal insulation layer is arranged at the bottom of the glass wool core layer, and the connecting board is connected to one side of the glass wool board. A connecting plate is arranged on one side of the glass wool board, a connecting groove is formed in the other side of the glass wool board, the connecting plate is matched with the connecting groove, and a fixing piece is used, so that connection between the adjacent glass wool boards becomes simple and rapid, and the installation efficiency is greatly improved. The heat preservation layer is arranged at the bottom of the glass wool core layer and forms a multi-layer heat preservation system together with the glass wool core layer; the heat preservation layer is made of a rock wool board material, heat transfer through the bottom of the glass wool board can be effectively reduced, the porous structure of the glass wool core layer is combined with the heat preservation layer, the heat conduction path is further blocked, and the heat preservation and heat insulation effects of the whole glass wool board are greatly improved through the synergistic effect of the porous structure and the heat preservation layer.

The utility model relates to the technical field of glass wool boards, in particular to glass wool board production drying equipment which comprises a drying box with two inlets and outlets symmetrically formed in the left side and the right side, conveyors are arranged on the outer sides of the two inlets and outlets, and a ventilation conveying mechanism is arranged at the bottom, between the two inlets and outlets, in the drying box. The ventilation conveying mechanism is connected with the conveyors through a synchronous transmission mechanism arranged outside the drying box, the ventilation conveying mechanism comprises a plurality of transmission net rollers which are horizontally arranged in the drying box at intervals, and the top end faces of the transmission net rollers are flush with the top end faces of the two conveyors. According to the glass wool board drying device, the glass wool boards can be continuously conveyed into the drying box conveniently, the conveyor does not need to stretch into the drying box, the situation that the conveyor is blocked and embrittled due to heating and drying is avoided, the continuous stability of conveying is improved, meanwhile, the conveyor is prevented from blocking drying from the bottom to the top, and the drying effect is improved.

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.

To minimize, or even eliminate, the use of sodium carbonate in a glass recipe, including a mixture of raw materials for the manufacture of glass wool, while retaining the main properties of glass necessary for the barrier properties of glass wool. [Solution] A glass composition for barrier fibers, comprising, by mass percent: SiO2: 62.0%~65.0%, Na2O: 14.0~15.5%, CaO: 6.0~9.0%, MgO: 1.5~4.0%, B2O3: 5.5~7.5%, Al2O3: 1.5~2.5%, K2O: 0~2.0%, one or more other oxides: cumulatively 0~5.0% by weight, preferably cumulatively 0~2.0% by weight, and having a Na2O / B2O3 ratio between 1.90 and 2.80; a glass composition; barrier fibers obtained from the composition; and a method for producing such fibers.

The utility model discloses a sound insulation composite wallboard which comprises a base layer, the base layer is made of a reinforced cement fiberboard, a sound insulation layer is arranged on one side of the reinforced cement fiberboard, a profiled steel sheet is arranged on the back face of the reinforced cement fiberboard, and a profiled pore plate is arranged on the front face of the reinforced cement fiberboard. The sound insulation layer comprises centrifugal glass wool fixedly connected to the back face of the reinforced cement fiberboard, the back face of the centrifugal glass wool is fixedly connected with a damping sound insulation felt board, the back face of the damping sound insulation felt board is fixedly connected with a galvanized light steel keel, and the back face of the galvanized light steel keel is fixedly connected with the front face of the profiled steel sheet. The reinforced cement fiberboard serves as a high-strength, light and durable material and can provide good structural support and stability. The wallboard not only can bear other functional layers such as a sound insulation layer and a flame retardant layer, but also can ensure the integrity and durability of the whole wallboard.

The utility model provides multi -layer structure high flame -retardant optical cable reinforcing core. Multi -layer structure high flame -retardant optical cable reinforcing core, including reinforcing member, the reinforcing member outer wall is equipped with filler layer, and the filler layer is talc layer, be equipped with a plurality of groups cable in the filler layer, the filler layer outside is equipped with pressure -resisting layer, and the pressure -resisting layer is annular wavy steel band layer, the pressure -resisting layer outside is provided with the anti -break layer, and the anti -break layer is polypropylene layer, the anti -break layer outside is equipped with flame -retardant layer, the flame -retardant layer outside fixed mounting has heat -resistant layer, and the heat -resistant layer is thermal insulation glass wool layer, the heat -resistant layer's outside fixed mounting has the protective layer. The utility model provides multi -layer structure high flame -retardant optical cable reinforcing core, and the H -shaped structure form of upper and lower flanges is used to reinforcing member and adds the web, and the problem of uneven stress distribution and low material utilization rate is solved perfectly through the structure optimization of H -shaped section, and simultaneously, a plurality of groups cable are arranged at the web both sides of H -shaped reinforcing member, can protect cable from being damaged to the greatest extent.

The application discloses a recycling method of micro-fiber glass wool waste, which comprises the following steps: (1) wet pretreatment: the micro-fiber glass wool waste is put into a liquid medium, and is stirred to be fully soaked and preliminarily dispersed; then, ultrasonic treatment is carried out; filtration, drying, and glass fibers are obtained; (2) high-temperature melting separation: the glass fibers are mixed with glass raw materials, heated to 1300-1500 DEG C and kept for 1-2 hours; cooling, separation, and lower transparent glass blocks are reserved; (3) component recovery remelting: the transparent glass blocks are mixed with glass raw materials, and are subjected to sufficient melting and homogenization treatment; cooling, and recycled glass blocks are obtained. The recycling method of the micro-fiber glass wool waste can remove impurities and recover components through wet pretreatment, melting separation and component recovery, and can realize high-quality recycling of the glass wool waste; and on this basis, CFD simulation optimization of dust removal pipelines can be supplemented, so that the energy efficiency in the recycling process is improved.

The utility model relates to the technical field of sound insulation boards, and provides a sound insulation board capable of improving the sound insulation effect of a house, which comprises a main board, a sound insulation layer and a back board, the main board is assembled and connected with the back board through the sound insulation layer, two sides of the sound insulation layer are respectively assembled and connected with the main board and the back board through cork layers, and the interior of the sound insulation layer is of a hollow structure. A plurality of honeycomb cylinders are arranged in the sound insulation layer, the honeycomb cylinders form a honeycomb structure, micropores are formed in the sound insulation layer right above the honeycomb cylinders, pyramids are arranged on the lower portions in the honeycomb cylinders, slope tops are arranged at the upper ends of the pyramids, and silencing grooves are formed in the surfaces of the pyramids. After sound enters the sound insulation layer, the sound is reflected for multiple times among the honeycomb cavities, the pyramids and the silencing grooves, so that part of sound wave energy is converted into heat energy, the glass wool layer on the surface of each pyramid is made of porous sound absorption materials, when the sound makes contact with the glass wool layer, the sound is dissipated due to the air viscous effect and internal reflection, and the sound insulation effect is further improved.

The utility model discloses a microfiber glass wool sorting device which comprises a sorting conveying frame, and a conveying line used for conveying blocky fiber glass wool for sorting is arranged on the inner side of the sorting conveying frame. And pneumatic straightening guide plates which enable the fiber glass wool to be conveyed by a conveying line to be corrected and centered are arranged on the two sides in the sorting conveying frame, the weight of the fiber glass wool can be measured by arranging a movable weight measuring table, and inclined-angle two-way precise discharging is achieved by cooperating with transmission of a servo motor and a main gear and an auxiliary gear. Materials accurately fall into the corresponding sorting frames A or B according to the quality, sorting reliability and stability are greatly improved, the problem that the discharging position of a traditional sorting device is prone to deviation is solved, stable circulation of the materials is guaranteed through a conveying line in the sorting conveying frame, the positions of the materials can be corrected through a pneumatic straightening guide plate, and the materials are conveyed in the middle. Good conditions are created for follow-up accurate detection and sorting, and the sorting accuracy is prevented from being affected by material position deviation.

The present application belongs to the technical field of sound insulation of fabricated buildings, and specifically relates to a structure and method for improving the air sound insulation performance of a lightweight wall for a fabricated building, and specifically comprises: adding an elastic damping cushion layer, a sound insulation damping rubber layer or a metal damping keel on both sides of a lightweight wall framework; applying double-layer wall panels; filling glass wool or rock wool inside; treating the butt joint of the wall panels; applying a window with a sound insulation amount greater than 75% of the sound insulation amount of the wall; and setting an elastic damping rubber cushion layer around the window. The air sound insulation performance of the wall is tested and the sound insulation grade is evaluated. By not changing the conventional structure of the lightweight wall framework, the air sound insulation performance of the conventional lightweight wall is improved in the full frequency band, and measures for improving the sound insulation performance of the wall containing the window are proposed in view of the conventional window in the wall as a whole sound insulation short board. The present application ensures the advantages of high assembly efficiency, convenient and fast prefabrication, simple construction and low cost of the lightweight wall, and significantly improves the air sound insulation performance of the lightweight wall.

The invention relates to the technical field of fiberboards, and provides a high-strength inorganic fiberboard and a preparation method thereof. The high-strength inorganic fiberboard is prepared from the following raw material components: microfiber glass wool, polycrystalline mullite fibers, ceramic fibers and an adhesive, the adhesive is prepared from the following raw material components: silica sol, an anti-settling agent, a coupling agent, metal oxide, calcium sulfate whiskers and water; the calcium sulfate whisker is silicon dioxide coated calcium sulfate whisker, and / or the metal oxide is polyvinyl alcohol composite metal oxide. According to the technical scheme, the problem that the strength of the inorganic fiberboard is insufficient when silica sol is used as a binder in the prior art is solved.

The application belongs to the field of air filtration, and specifically discloses a kind of water and oil removal air filtration material and its preparation method, the preparation method is to mix and react octadecyl methacrylate, isobutyl methacrylate, acrylic acid, ethylene glycol ester and styrene for a preset time to form modified methacrylic acid resin, then the first fiber short filament is prepared by using modified methacrylic acid resin;The second fiber short filament is prepared by using polyacrylate resin;Glass wool, the first fiber short filament and the second fiber short filament are mixed to prepare to obtain water and oil removal air filtration material.The application can achieve the effect of water and oil removal while maintaining efficient filtration of solid particles in the air, greatly prolonging the service life of the air filtration material, reducing the filter replacement cost and manual work intensity.

The utility model relates to the technical field of glass wool, and discloses a high flame-retardant glass wool product, which comprises a glass wool base material, a waterproof layer, a flame-retardant layer, a heat-insulating layer and a protective layer, and surface coatings which are coated on the surface of the glass wool base material and are used for improving the flame-retardant effect and the fireproof performance of the glass wool base material are sprayed on the inner side and the outer side of the glass wool base material; the waterproof layer is used for preventing water from permeating into the glass wool base material and is adhered to the inner side of the glass wool base material; the flame-retardant layer is used for being matched with the surface coating to perform double-layer fire prevention and flame retardance on the outer layer of the glass wool base material; the flame-retardant layer is located on the outer side of the surface coating and deviates from the waterproof layer, the heat insulation layer is used for being matched with the surface coating and the flame-retardant layer to form a composite structure layer on the surface of the glass wool base material, and the heat insulation layer is bonded to the surface of the flame-retardant layer; the protective layer is bonded to the outer side face of the heat insulation layer and used for preventing water and fire. The high-flame-retardant glass wool product adopting the composite structure has good waterproof, flame-retardant, heat-insulating and fireproof performance.

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.

The utility model discloses an all-fiber graphite product shuttle kiln, and relates to the technical field of shuttle kilns. An all-fiber graphite product shuttle kiln comprises a shuttle kiln body, the front side of the shuttle kiln body is rotationally connected with a sealing door, a heat preservation layer is arranged in the shuttle kiln body, a heat-resisting layer is arranged in the heat preservation layer, a flame-retardant layer is arranged in the heat-resisting layer, the heat preservation layer comprises a graphite layer, and the graphite layer is arranged in the heat-resisting layer. The heat-resistant layer comprises a graphite layer, a glass wool layer is arranged in the graphite layer, the thickness of the glass wool layer is larger than that of the graphite layer, the heat-resistant layer comprises a ceramic heat-insulation board layer, a rock wool board layer is arranged in the ceramic heat-insulation board layer, and the thickness of the rock wool board layer is larger than that of the ceramic heat-insulation layer. The technical problems that an existing shuttle kiln is poor in heat preservation performance, when people use the shuttle kiln, the phenomenon of internal heat loss is likely to happen, the internal temperature is unbalanced, the daily use requirement cannot be met, and people cannot use the shuttle kiln conveniently are solved.