84 results about "Cement composites" patented technology

The invention discloses a coal gangue-based reinforced cement composite material and a preparation method thereof, and relates to the technical field of building materials. The coal gangue-based reinforced cement composite material is prepared from a coal gangue-based reinforced admixture, calcium ion doped modified multi-walled carbon nanotubes, polypropylene fibers, P.O42.5 Portland cement, metakaolin, silica fume, a polycarboxylate superplasticizer and water, calcium ion doped modified multi-walled carbon nanotubes and a coal gangue based reinforced admixture are cooperatively added into a cement matrix, seamless filling from nanometer to micrometer is achieved, a tough interface transition area is formed, pressure is jointly borne by a compact matrix and a strong interface, the compressive strength and breaking strength of the material are remarkably enhanced, and meanwhile, the compressive strength and breaking strength of the material are greatly improved. Migration of moisture and ions is effectively blocked, and the anti-permeability performance of the material is improved.

A design and construction method for a concrete-filled pipe-mixed soil-cement composite pile foundation for offshore wind power, comprising: on the basis of a load requirement of offshore wind power equipment and the depth of seawater, selecting a supporting body that is adapted to the offshore wind power equipment, one of a bearing platform (4) or a multi-leg frame (15) being used for the supporting body; when a bearing platform (4) is used as the supporting body, constructing multiple concrete-filled pipe-mixed soil-cement composite piles (6) below the bearing platform (4), the multiple concrete-filled pipe-mixed soil-cement composite piles (6) each being obliquely arranged below the bearing platform (4) at a certain angle, and forming an outwardly-inclined scattered shape; and when a multi-leg frame (15) is used as the supporting body, constructing multiple concrete-filled pipe-mixed soil-cement composite piles (6) below the bearing platform (4), the multiple concrete-filled pipe-mixed soil-cement composite piles (6) being vertically arranged below the multi-leg frame (15).

The application provides an anti-water freezing type gelling stable phosphogypsum asphalt concrete and a preparation method thereof, and comprises the following steps: 1, obtaining phosphogypsum powder by treating recycled waste phosphogypsum; 2, preparing PU / cement composite modified asphalt; 3, quantitatively taking PU / cement composite modified asphalt, natural aggregate and the phosphogypsum powder obtained in the step 1) (instead of mineral powder); 4, according to the designed mixing ratio, mixing the PU / cement composite modified asphalt, aggregate and phosphogypsum filler to prepare the anti-water / anti-freezing type phosphogypsum asphalt concrete. The composite modification of PU and cement can enhance the adhesion of asphalt to the natural aggregate and the phosphogypsum, significantly improve the water resistance and freezing resistance of the anti-water / anti-freezing type phosphogypsum asphalt concrete, greatly solve the problem that the potential practical engineering application of the phosphogypsum filler is limited due to the poor water stability, relieve the environmental pollution problem, and the production process is simple and easy to operate.

The invention relates to the technical field of building materials, in particular to an energy-saving and environment-friendly recycled concrete pipe pile and a preparation method thereof. The recycled concrete is prepared from the following raw materials in parts by weight: 35 to 45 parts of recycled aggregate, 22 to 28 parts of P.O42.5 Portland cement, 6 to 9 parts of magnesium phosphate cement composite admixture, 18 to 22 parts of river sand, 1.0 to 1.3 parts of hydroxylated graphene-chitosan-nano zinc oxide ternary composite modifier, 6 to 8 parts of modified waste tire rubber powder, 0.5 to 0.8 part of basalt fiber and the like. The rubber powder is soaked in a sodium hydroxide solution and then treated with a maleic anhydride grafted polyethylene solution; the metakaolin is prepared by calcining coal gangue; the ternary modifier is prepared by grafting, crosslinking and dispersing; the magnesium phosphate admixture contains light calcined magnesia, ammonium dihydrogen phosphate and borax. The tubular pile is excellent in mechanical and durable performance and high in solid waste utilization rate, carbon emission and production energy consumption are reduced, the cost is reduced, the problems that a traditional regenerated tubular pile is low in strength and poor in environmental protection performance are solved, the tubular pile is suitable for multiple engineering scenes, and economic and environmental benefits are remarkable.

The invention relates to the technical field of preparation of bone cement, and particularly discloses a preparation method of a photo-thermal response type gold nanorod-bone cement composite material. The method comprises the following steps: synthesizing a gold seed solution; constructing a growth solution; controlling the growth of the nanorod; gradient centrifugal purification; carrying out surface ligand exchange (sulfydryl-PEG); preparing a bone cement composite material; curing and forming; gold nanorods (GNRs) are uniformly embedded into a polymethyl methacrylate (PMMA) bone cement matrix, so that the problems that free nanorods are easy to migrate and poor in bone targeting are solved. The local temperature can be accurately controlled, and damage to surrounding tissues is avoided. According to the invention, immunogen cell death (ICD) can be effectively induced, and anti-tumor immune response can be activated. According to the invention, enough mechanical support can be provided, and the stability after implantation is ensured.

The utility model provides an automatic material conveying device for cement composite powder production, which belongs to the technical field of cement composite powder production and comprises a raw material refining cylinder, a material conveying device, a material conveying device and a material conveying device. The screening and pushing mechanism comprises a plurality of upper screening grooves, a plurality of lower screening grooves, a pushing plate, a plurality of material crushing plates, a raw material conveying barrel, a discharge port, a cylinder fixing sleeve and a driving cylinder, so that automatic operation of refining, screening and conveying of raw materials is realized, the production efficiency is improved, the labor cost is reduced, and the production efficiency is improved. And meanwhile, the quality stability of the product is also ensured.

The invention belongs to the technical field of building materials, and particularly relates to a waterborne epoxy resin-sulphoaluminate cement composite repairing material and a preparation method thereof. The water-borne epoxy resin-sulphoaluminate cement composite repairing material disclosed by the invention is prepared from the following components in parts by weight: 10 to 20 parts of water-borne epoxy resin, 40 to 60 parts of sulphoaluminate cement, 0.5 to 1 part of nano modified lignosulfonate, 0.2 to 0.6 part of nano hybrid polyvinyl alcohol, 0.1 to 0.5 part of a retarder, 0.05 to 0.3 part of an early strength agent and 12 to 25 parts of water. The water-borne epoxy resin-sulphoaluminate cement composite repairing material is suitable for hydraulic buildings with high requirements on repairing quality and durability, such as cross-sea bridges, seaport wharfs, hydropower stations and the like.

The present invention relates to a mortar composition that is a cement composite comprising aminated cellulose nanofibers in which amine functional groups are introduced into cellulose nanofibers. Compared to mortar that does not contain aminated cellulose, the invention can provide a mortar composition capable of producing a mortar with significantly superior strength by forming a new crystal structure and hydrate inside the mortar.

To provide an explosion-proof panel composed of a cured body of a cement composition having high compressive strength and excellent impact resistance, and to provide a method for producing the explosion-proof panel.SOLUTION: An explosion-proof panel 1 is composed of a cured body of a cement composition, wherein: the cement composition comprises cement, silica fume having a BET specific surface area of 15 to 25 m2 / g, an inorganic powder having a 50% cumulative particle diameter of 0.8 to 5 μm, an aggregate A having a maximum particle diameter of 1.2 mm or less, heat-resistant foamed beads having an average particle diameter of 1.5 to 4.5 mm, a high-range water-reducing agent, a defoaming agent, metal fibers, and water; in 100 vol% of the total amount of the cement, the silica fume, and the inorganic powder, a ratio of the cement is 55 to 65 vol%, a ratio of the silica fume is 5 to 25 vol%, and a ratio of the inorganic powder is 15 to 35 vol%; and a ratio of the heat-resistant foamed beads in the cement composition is 7.0 to 27.0 vol%.SELECTED DRAWING: Figure 1

The invention discloses a preparation process of an unfired building block containing stone powder, and belongs to the field of building solid waste recycling. The process comprises the following steps: performing graded crushing to obtain four-stage construction waste aggregate, modifying the four-stage construction waste aggregate with a silane coupling agent-cement composite coating agent, mixing the modified four-stage construction waste aggregate with superfine stone powder according to gradient grading, and performing layered vibration pressure forming and baking-free curing to obtain the building block. According to the invention, three-stage process synergy is adopted: graded crushing is adopted to optimize particle size distribution, surface coating is adopted to enhance interface bonding, gradient grading is adopted to improve structural compactness, 28d compressive strength of the obtained building block is greater than or equal to 15MPa, solid waste mixing amount is greater than or equal to 90%, energy consumption is reduced by 80% compared with that of a traditional process, and carbon emission is reduced by more than 60%. The process is suitable for large-scale production of high-performance unfired wall materials, and has remarkable environmental protection and economic benefits.

The invention discloses anti-rut asphalt concrete and a preparation method thereof, and belongs to the technical field of building materials used in road engineering, the anti-rut asphalt concrete is prepared from the following raw materials by weight: 50-60 parts of coarse aggregate, 34-40 parts of fine aggregate, 3-8 parts of cement, 0.2-0.5 part of a cellulose stabilizer and 4.5-5.5 parts of matrix asphalt, wherein the weight ratio of the coarse aggregate to the fine aggregate is (1.4-1.65): 1. According to the anti-rut asphalt concrete, a three-in-one anti-rut mechanism is formed through a high-proportion coarse skeleton embedding and extruding structure, cement composite adhesive cement hardening and cellulose space constraint; the anti-rutting concrete prepared from modified asphalt has the advantages that the same performance can be achieved only through the innovative proportion and physical action of conventional materials, the stability under long-term aging and extreme temperature is better, and compared with anti-rutting concrete prepared from modified asphalt, the concrete can reduce the cost by more than 25 yuan / ton, and has good economic benefits.

This invention relates to the field of coating technology and discloses a high-impact and high-compression-resistance epoxy-modified micro-cement floor coating. The coating is made primarily from epoxy resin and white special micro-particle cement, with reinforcing fillers, self-cleaning additives, titanium dioxide, quartz powder, corundum, etc., as auxiliary materials. The mixture is formed by blending epoxy resin and special cement, utilizing the high mechanical strength of epoxy resin, the concrete-like texture of special cement, and the high hardness of corundum raw materials to create a stable, impermeable micro-cement composite coating for artistic flooring. The addition of reinforcing fillers and self-cleaning additives not only effectively enhances the coating's impact resistance and compressive strength but also provides excellent self-cleaning properties, resulting in good durability.

The present application relates to the technical field of well cementation evaluation, and particularly relates to a double casing well cementation quality evaluation method, device, equipment, medium and product, wherein the method comprises the following steps: performing logging on a cemented well section of a double casing well to obtain casing-cement composite mode wave data of the cemented well section; performing logging on a to-be-evaluated well section of the double casing well to obtain casing-cement composite mode wave data of the to-be-evaluated well section; comparing the casing-cement composite mode wave data of the to-be-evaluated well section with the casing-cement composite mode wave data of the cemented well section to evaluate the cementation quality of the to-be-evaluated well section of the double casing well; and the cementation quality of the double casing well can be comprehensively evaluated.

The present application relates to a kind of cement composite for anti-cracking, anti-bending strength mortar, it is first using the component including triethylene glycol, dodecanedioic acid, polypropylene glycol, 2-naphthylamine-1, 5-disulfonic acid, 1, 4-butanediol-2-sodium sulfonate, citric acid, triethanolamine to prepare special toughness structure, hydrophilic polymer polyester resin, then it is fully mixed with cement clinker, gypsum, blast furnace slag and coal gangue powder etc., powder preparation is obtained.The cement product prepared in the present application contains organic polymer polyester resin that can be hydrated and dispersed, the mortar material prepared by using the cement product of the present application not only has excellent anti-cracking performance, but also has high bending strength, which is much better than ordinary cement, and can be used in the field of cement mortar material with high requirements for anti-cracking and bending strength.

The present application relates to the technical field of highway construction, and particularly relates to a magnesium-based grouting reinforcement slurry mix proportion design method, wherein three kinds of slurry with different cement mixing ratios are configured in the slurry mix proportion design process, and 2-4% of active magnesium oxide curing agent is added to each of the three kinds of slurry to carry out a comparative test, and the final design quality mix proportion is determined through comparison of the results after 28d standard curing. The present application has the following advantages: the incorporation of active magnesium oxide promotes the hydration reaction of cement, improves the early strength of the composite foundation, and promotes the construction progress; the active magnesium oxide-cement composite slurry can significantly increase the cohesion and internal friction angle mechanical parameters of the composite foundation soil, improve the roadbed bearing capacity, reduce the overall settlement of the roadbed, and ensure the stability of the composite foundation; the magnesium hydroxide crystals generated by the hydration reaction of active magnesium oxide produce expansion to compensate for the shrinkage caused by the hardening of cement.

The utility model relates to a wear-resistant bimetallic plate structure which comprises a tungsten-cobalt alloy wear-resistant plate and a steel substrate, and a brazing layer or a high-temperature-resistant epoxy structural adhesive layer is arranged between the tungsten-cobalt alloy wear-resistant plate and the steel substrate. A plurality of bolts are pre-buried in the tungsten-cobalt alloy wear-resisting plate, and one end of each bolt extends to the steel base plate and is pre-tightened through a nut; the embedded depth of the bolt is 1 / 3-1 / 2 of the wall thickness of the tungsten-cobalt alloy wear-resisting plate and is not less than 3 times of the diameter of the bolt; the surface of the bolt is coated with a high-temperature-resistant coating, and the thickness of the high-temperature-resistant coating ranges from 0.1 mm to 0.3 mm. According to the utility model, through the bolt and brazing / cementing composite structure design, the problem that the traditional tungsten-cobalt alloy bimetallic plate is easy to peel off and lose efficacy due to insufficient interface bonding force is solved, the connection strength, reliability and applicability are obviously improved, and the bimetallic plate can stably operate under various complex working conditions.

The present invention relates to: a repair composition for a self-heating cement composite material; and a repair method using same The present invention provides a repair composition for a self-heating composite material, comprising: calcium sulfoaluminate cement, calcium aluminate cement, a conductive filler, and a fluidizing agent

The application discloses a rubber-cement composite material surface modifier optimization method based on molecular simulation, which comprises the following steps: based on molecular dynamics simulation, a full-atom numerical model for characterizing the physicochemical properties of cement matrix, rubber and modifier material is constructed by using Materials Studio software; based on the full-atom numerical model, the Gibbs free energy of the material system is calculated by using a quantum mechanics method to predict whether chemical reaction or physical adsorption behavior occurs between the selected modifier and the two types of materials of rubber and cement, and finally a rubber-cement-based composite material system model before and after the treatment of the modifier is constructed; the free volume fraction and atomic concentration of the composite material system model before and after the modification are analyzed on a microscale to quantitatively evaluate the effect of the modifier on the material performance, and then the optimal surface modifier is determined. The application can construct a numerical model accurately reflecting the material properties and analyze and optimize the material surface / interface modifier.

The present application relates to a kind of trabecula-cement composite finite element model construction method, method includes obtaining trabecula microimage data;Reconstruct the three-dimensional structure of trabecula in the region of interest;The trabecula in the three-dimensional structure image of trabecula is polished and smoothed;Convert to entity after being wrapped using fluid domain;Two-dimensional surface mesh subdivision is carried out to fluid domain, and three-dimensional body mesh division is carried out after subdivision to fluid domain;Trabecula is divided into three-dimensional body mesh;With fluid domain as cement, obtain the trabecula-cement composite of preset filling depth, respectively give cement, trabecula grid corresponding material attribute and material parameter, set boundary condition, load and the contact type between cement and trabecula, obtain trabecula-cement composite finite element model.The method of the present application omits the process of traditional construction trabecula-cement composite sample, and the finite element model established is high in accuracy, low in cost and easy to popularize.

The invention provides a magnetic response nano-reinforced cement-based material suitable for a high geothermal environment. The composite material comprises a low-aluminum calcined kaolin-limestone-cement composite gel system mixture and lanthanum-doped nano aluminum oxide, wherein the doping amount of the lanthanum-doped nano aluminum oxide is 0.3%-0.8%; in the lanthanum-doped nano aluminum oxide, the doping amount of lanthanum element is 1-3 at%; when the material is used, slurrying and pouring are needed to form a product, a 0.5-1.0 T pulsed magnetic field is applied for 10-15 min after pouring and before initial setting, the direction of the magnetic field is parallel to the main stress direction of a component, and oriented arrangement of nano-particles is achieved; and then three stages of temperature and humidity gradient temperature control maintenance are used. By constructing a multi-dimensional synergistic enhancement system, the structural stability and durability are improved under the high-temperature and high-corrosion working conditions, and the method is suitable for being used under the severe high-geothermal working conditions such as deep-buried tunnel linings and geothermal shaft protecting walls.

This invention discloses a multi-layered magnesium-based lightweight composite board and its preparation method. The composite board comprises a slurry layer, a reinforcing layer, and a lightweight layer, and is obtained through a multi-layered structure of slurry layer-reinforcing layer-lightweight layer-reinforcing layer-slurry layer. The reinforcing layer is a glass fiber mesh. The slurry layer is obtained by stirring a magnesium chloride solution and mixture A. The lightweight layer slurry is obtained by stirring a magnesium chloride solution, mixture B, and a foaming agent. The magnesium chloride solution is prepared by mixing magnesium chloride, citric acid, and water. Mixture A is obtained by dry-mixing bamboo fiber, lightly calcined magnesium oxide, and a thickener. Mixture B is obtained by dry-mixing bamboo fiber, lightly calcined magnesium oxide, a thickener, a foam stabilizer, an activator, and a foaming agent. Compared to ordinary lightweight composite boards, the lightweight composite board of this invention exhibits significantly enhanced flexural strength and possesses properties such as being environmentally friendly, lightweight, non-combustible, and energy-efficient, thus expanding the application of magnesium-based cement composite boards.

The utility model discloses an energy-saving type cement composite insulation board for a green building, relates to the technical field of cement composite insulation boards, and aims to solve the technical problems that gaps are easy to form in the cement composite insulation board and the insulation effect is influenced, the energy-saving type cement composite insulation board comprises a cement composite board located on the outermost layer, and an anti-crack steel wire mesh layer is arranged on one side of the cement composite board. A heat preservation layer adheres to one side of the anti-crack steel wire mesh layer, a sound insulation layer is fixed to one side of the heat preservation layer, a gypsum layer is arranged on one side of the sound insulation layer, a first connecting shell and a second connecting shell are arranged at the top and the bottom of the heat preservation layer correspondingly, and reinforcing structures are arranged at the two ends of the first connecting shell and the two ends of the second connecting shell correspondingly. And a sealing structure is arranged between the interiors of the first connecting shell and the second connecting shell. The reinforcing structure and the sealing structure are arranged on the first connecting shell and the second connecting shell of the insulation board, and the expansion piece is heated to expand to block the gap, so that the insulation board is ensured to be tightly connected during long-term use, and good insulation performance is maintained.

A hemp-magnesium oxychloride cement composite material and a preparation method thereof, which relate to a cement composite material and a preparation method thereof. The present application aims at solving the problem that the prior art cannot reduce the damage of internal stress concentration to the mechanical strength of MOC while fully exerting the water resistance improvement effect of phosphonic acid modifier on MOC. The hemp-magnesium oxychloride cement composite material is prepared from magnesium chloride hexahydrate, magnesium oxide, diphosphoric acid and hemp straw. The method comprises the following steps: 1, uniformly mixing magnesium chloride hexahydrate, distilled water and a solution containing diphosphoric acid to obtain a mixed system; 2, dry mixing hemp straw and magnesium oxide powder, and then adding the mixture into the mixed system to stir and dissolve; and 3, solidifying. The present application is used for hemp-magnesium oxychloride cement composite material and preparation thereof.

One embodiment of the present invention provides a method and a system for preparing a cement composite, which predict the production amount of CO2-AFm according to the mixing on the basis of the chemical components of a binder constituting the cement composite, and calculate, therethrough, the optimal mixing ratio of materials such as Portland cement, limestone fine powder and calcined clay, thereby setting the mixing ratio of the cement composite containing a high amount of limestone and having excellent performance.

An automated robotic printing device for additive manufacturing or three-dimensional printing of an engineered cementitious composite (ECC) structure is provided. The device has a feeding system and an automated extrusion system configured to receive the ECC composition from the feeding system and deposit the ECC composition onto a target. The automated extrusion system comprising at least one robotic device comprising a tiltable and steerable deposition head that comprises an extrusion nozzle having a substantially rectangular opening and at least one shaping blade at a terminal end to shape and deposit the cementitious composition onto a target. Methods of additive manufacturing of a structure from the ECC compositions are also provided.

The invention relates to the technical field of intelligent manufacturing, and discloses an intelligent manufacturing method and system for a foamed cement composite board. The method comprises the steps that a foam quality analysis model is adopted to analyze a foam solution, and a foam analysis result is obtained; according to the foam analysis result and the slurry viscosity value, an optimal mixing parameter set of the foam solution and the cement slurry base material is obtained, a mixed slurry quality analysis model is adopted to analyze the foamed cement mixed slurry, a mixed slurry quality analysis result is obtained, and therefore pouring parameters of the foamed cement mixed slurry are controlled. And according to the pouring amount data, the slab state data and the slab space-time reference data, a virtual maintenance model is constructed in the intelligent manufacturing digital twin platform to generate an optimal temperature and humidity maintenance curve, and according to the optimal temperature and humidity maintenance curve, the temperature and humidity set value of the maintenance kiln is dynamically adjusted. According to the method provided by the invention, the self-adaptability and the intelligent level of the production process of the foamed cement composite board are improved, and the product quality is improved.

The utility model discloses a special frame body based on a foaming cement composite board, which belongs to the technical field of light board production, and comprises a main frame body, a steel wire mesh and a connecting frame are arranged on the inner side wall of the main frame body, the connecting frame is arranged above the steel wire mesh, and the connecting frame is arranged above the steel wire mesh. The connecting frame comprises a plurality of hollowed-out trusses and at least one supporting beam installed on the center section of the main frame body, the hollowed-out trusses and the supporting beams are both perpendicular to the long edges of the main frame body, and the lower ends of the hollowed-out trusses and the lower ends of the supporting beams are not in contact with the steel wire gauze. The supporting beam comprises two inclined plates capable of draining slurry, the upper end faces of the two inclined plates are connected with each other, and a plurality of through holes allowing the slurry to flow are formed in the inclined plates, the core material fusion degree can be improved, the weight of the composite board can be reduced, and the strength of the board can be improved.

The invention discloses a magnesium oxide board based on bamboo filament filling and a preparation process thereof, and belongs to the technical field of light building materials, the magnesium oxide board comprises modified bamboo filaments, modified diatomite, acetylated modified starch, prepared premixed slurry and bamboo filament magnesium oxysulfate cement composite slurry. And mold closing and hot pressing, overlapping, mold locking, curing and curing, drying, cutting and polishing are carried out. The bamboo filaments, the modified starch and the modified diatomite synergistically optimize the internal filling structure, so that the deformation risk in the use process of the board is greatly reduced, the structural form can be kept stable even if the board bears external force for a long time, and the problem of local looseness or overall deformation caused by poor material combination is avoided. The sectional type hot pressing technology enables the compactness of materials in the plate to be uniform, the local impact resistance is strengthened, instant acting force brought by concentrated loads can be resisted, and the overall uniform bearing performance is improved.

The invention relates to the technical field of building material production, in particular to a magnesium gel composite production quantitative feeding and mixing device which comprises a supporting frame, a stirring barrel is slidably connected to the upper surface of the supporting frame, stirring blades are rotatably connected to the inner side of the stirring barrel, and extension plates are symmetrically slidably connected to the interiors of the two sides of the stirring blades. A sliding disc is slidably connected to the outer surface of the top of the stirring blade, the ends, close to each other, of the connecting rods are rotatably connected to the outer surface of the sliding disc, the outer surface of the top of the stirring blade is fixedly sleeved with a compression spring, and the top end of the compression spring is fixedly connected to the lower surface of the sliding disc. The extension plates are unfolded towards the two sides, the unfolded ends of the extension plates can make contact with a material area near the inner wall of the mixing bin, common side wall mixing dead corners in the traditional stirring process are effectively eliminated, magnesium oxide, a magnesium chloride solution, filler and other components are fully mixed, and therefore the mixing uniformity is remarkably improved.

The invention relates to the technical field of composite blanket preparation, and discloses multi-layer cement composite blanket manufacturing equipment which comprises a base, a first discharging roll and a second discharging roll are installed at the top of the base, a material distributing opening is fixedly connected into the base, and a rolling assembly, a vibration assembly and a smoothing assembly are arranged in the base. The grinding assembly comprises a grinding roller, the vibration assembly comprises a vibration hammer and a vibration plate, the smoothing assembly comprises a threaded rod and a moving plate, and the material distributing opening is used for conveying raw material particles to composite blanket raw materials. A rolling assembly can drive a rolling roller to rotate and move, the rolling roller can compact raw material particles and composite blanket raw materials through rotation, the rolling roller can move in the rotating process to convert the raw material particles from one-way stress accumulation into multi-way flow filling, and the raw material particles more fully permeate into gaps of the composite blanket raw materials; and meanwhile, the contact between the rolling rollers and the composite blanket raw materials can be uniformly distributed on the rolling rollers, so that the probability of fiber breakage and fuzzing is reduced.