179results about How to "Meet fire protection requirements" patented technology

The invention discloses an inorganic heat insulation load-bearing concrete, belonging to the technical field of heat preservation load-bearing concrete. The invention aims at solving the problem of providing a concrete which not only can meet the requirements of stress performance of structural components of buildings, but also has good heat preservation property. The adopted scheme comprises: the concrete comprises the components with mix proportion by weight (kg/m<3>): the ratio among composite lightweight doped-aggregate, cement, sand, carpolite, ceramsite, pulverized fuel ash, water and admixture is (6-225): (200-800): (300-700): (500-1600): (150-650): (10-600): (80-400): (0.1-200); wherein the composite lightweight doped-aggregate is one or mixture of more in vitrified micro-bead, vermiculite, expanded perlite and modified expanded perlite, and has the density of (50-180)kg/m<3>. Therefore, the load-bearing concrete can be widely applied to the field of building technology.

The invention discloses a fireproof interface agent for a polystyrene foam heat insulation material and a preparation method thereof. The fireproof interface agent is compounded by components A and B, wherein the mass ratio of the components A to B is 1: 1.2 to 1.4. The fireproof interface agent comprises the following raw materials in percentage by mass: the component A: 40 to 50 percent of butyl benzene emulsion, 35 to 40 percent of water glass, 1 to 3 percent of water glass stabilizing agent, 3.4 to 8 percent of ammonium polyphosphate fireproof aid, 10 to 15 percent of stable thickening agent and 0.2 to 0.4 percent of preservative; and the component B: 25 to 30 percent of water, 0.2 to 0.4 percent of preservative, 3 to 5 percent of antimonous oxide, 7 to 11 percent of chlorinated paraffin, 15 to 20 percent of fireproof paper fiber pulp, 3 to 5 percent of mica, 15 to 20 percent of aluminum hydroxide, 20 to 25 percent of fly ash, 0.5 to 1 percent of expanded perlite and the like. The fireproof interface agent has good flame-retardant property, and can greatly improve the combustion performance of the polystyrene foam heat insulation material.

The invention relates to a lifting type water floating split green building structure system and a construction method. The lifting type water floating split green building structure system comprises a water floating structure and an underwater support structure. The water floating structure is composed of an FRP reticulated shell dome, an FRP cantilever reticulated shell, FRP combination columns, an FRP sandwich concrete combination base plate, guy rope devices with active control dampers, FRP cylindrical surface reticulated shells, FRP inclined struts and an access pipeline gathering channel. The FRP reticulated shell dome is arranged on the boss of the FRP combination columns to form an enclosed roof structure, the lower end of the FRP cantilever reticulated shell is fixed on the bosses of the FRP combination columns, and the upper end of the FRP cantilever reticulated shell is connected with the FRP reticulated shell dome through pull bars driving the active control dampers; and the two ends of the FRP sandwich concrete combination base plate are provided with U-shaped swimming pools, the FRP inclined struts are arranged at the side surfaces of the swimming pools, and the underwater support structure can be composed of telescopic spring inflation piles and a raft plate base. The upper-portion structure of the system can be disengaged from the base, the floating effect of water is brought into full play, and the overall economic benefits are quite good.

The invention relates to the technical field of bridge inhaul cables, in particular to an anti-flaming inhaul cable. The inhaul cable comprises a cable body, a polyurethane packaging belt, a thermal insulation layer and a fireproof rubber layer. The polyurethane packaging belt wraps the outer surface of the cable body, the thermal insulation layer wraps the outer surface of the polyurethane packaging belt, the fireproof rubber layer wraps the outer surface of the thermal insulation layer, and the fireproof rubber layer is formed by raw material compositions including water-based resin, ammonium polyphosphate, vermiculite, expanded graphite, perlite and water through a polymerization reaction. The fireproof rubber layer has the good heat resistance, cold resistance, anti-corrosion propertyand small environment factor influences, the full-fireproof cable body can be manufactured in a factory easily, the installing difficulty is lowered, the fireproof function of the inhaul cable is added, and the problem of traditional inhaul cable outer layer high-density polyethylene stress cracking is solved.

The invention discloses an efficient flame retardant two-component polyurethane adhesive comprising the following components and the weight parts of the corresponding components: 40 parts by weight of polyester polyol; 28 parts by weight of calcium carbonate; 20 parts by weight of a flame retardant; and 2 parts by weight of molecular sieve. Even if the flame retardant is added in the two-component polyurethane adhesive, no obvious influence on the properties of an original two-component polyurethane adhesive exists, and the original cohesive strength, bonding strength, color appearance, viscosity, application time, foaming rate and main solid ratio can be substantially kept.

The invention discloses an AEPS (class-A expandable polystyrene) zinc-magnesium steel plate fireproof insulation decorative integrated board, comprising an AEPS polystyrene board and a zinc-magnesium steel plate composited together. The zinc-magnesium steel plate is 0.5-1.5 mm in thickness. The minimum dimensions of a rectangular plate of the zinc-magnesium steel plate are 100*200 mm. The maximum dimensions of the rectangular plate of the zinc-magnesium steel plate are 1250*12000 mm; two sides of the AEPS polystyrene board are provided with grooves; the zinc-magnesium steel plate has a planarity deviation, is not less than 2 mm in thickness and not greater than 0.2% in long side allowable deviation, and is less than 2 mm in thickness and not greater than 0.5% in long side allowable deviation.

The invention discloses a high-temperature exhaust gas filtering apparatus. The high-temperature exhaust gas filtering apparatus is connected with an exhaust gas output pipeline and comprises a box provided with a gas inlet and a gas outlet. The interior of the box comprises a gas cooling chamber provided with an exhaust gas cooling mechanism and a processing chamber used for filtering cooled gas.The exhaust gas cooling mechanism comprises a cooling pipeline fixedly arranged in the gas cooling chamber, and one end of the cooling pipeline is connected with the gas inlet. The gas outlet is provided with an exhaust fan. The high-temperature exhaust gas filtering apparatus provided by the invention effectively cools high-temperature exhaust gas via the spiral cooling pipeline; a perforated foamed aluminum plate in the apparatus can be cyclically used and has long service life, so maintenance cost is effectively lowered; the perforated foamed aluminum filtering plate does not deform even after blowing by strong breeze and has stable filtering performance and good flame resistance; the perforated foamed aluminum filtering plate can be recycled, so air pollution is prevented; and the high-temperature exhaust gas filtering apparatus has simple structure and good practicality.

The invention discloses a tunnel compartment wall lining construction method which comprises the following steps of: determining a walking route of a tunnel compartment wall template trolley in a tunnel to be constructed and carrying out a formwork erection operation through the tunnel compartment wall template trolley; carrying out concrete pouring on the tunnel compartment wall template trolley subjected to the formwork erection, controlling pouring time of concrete pouring; and demoulding the tunnel compartment wall template trolley to form a plurality of continuously-arranged compartment walls, which one end part of each of the continuously-arranged compartment walls is separated from a tunnel vault. By adopting the tunnel compartment wall lining construction method disclosed by the embodiment of the invention, the construction quality of the compartment walls can be better ensured, an assembly line work is easily formed, and the advantages of high construction speed, low project investment and construction risk, and the like are achieved.

The invention discloses a corridor double escalator with balancing units, and relates to an elevating device. The escalator is arranged in a corridor, and is advantaged in that the escalator does not affect ventilation and natural lighting, operates safely and reliably, can keep the corridor unobstructed, and is simple and convenient to use, low in cost and short in construction period and the like. The corridor double escalator comprises guide frames, main frames, the balancing units, a driving unit and safety protection units, the guide frames are symmetrically and fixedly arranged on walls at two sides of the corridor and are parallel to the slope of stairs, the main frames are movably arranged on the guide frames and move on the guide frames through the driving unit, the balancing units are arranged on the guide frames and are connected with the main frames through wire ropes and rope guide wheels, and the safety protection units are arranged on the main frames or the guide frames, and are connected with a controller and an electromagnetic brake. The corridor double escalator with the balancing units can be used as an escalator and also can be used as a staircase. By employing the corridor double escalator with the balancing units, conflict of residents on high and low floors can be alleviated, the elevator mounting problem which puzzles us for many years is solved, and the corridor double escalator can be widely applied to duplex apartments, small villas and urban and rural low-rise buildings.

The invention belongs to the field of building decorative materials, in particular to an electric heating movable floor and a heating system consisting of the electric heating movable floor. The electric heating movable floor comprises a floor substrate mainly manufactured by pressing a calcium sulfate material and is characterized in that the floor substrate is provided with a connection through hole, the upper surface of the floor substrate is provided with a wiring slot in which an electric heating wire is embedded, a start point and an end point of the wiring slot are communicated with the connection through hole in which a power supply connector is arranged, two ends of the electric heating wire are connected with the power supply connector, and a panel is adhered on the upper surface of the floor substrate. According to the invention, the decoration on the ground is firstly realized, the requirements of persons on good appearance and cleanness of the ground are met, and the heating system consisting of the electric heating movable floor disclosed by the invention meets requirements of the persons on indoor heating and is convenient for the persons to carry out single control.

The invention relates to an antibacterial environment-friendly board, particularly an antibacterial decorative board and a preparation method thereof. The antibacterial decorative board comprises, from top to bottom in order, an antibacterial surface layer, a decorative paper line layer, a balance enhancement layer, a substrate layer and a balance layer that are bonded to each other. The preparation method consists of: firstly making a stearic acid salt, calcium carbonate, carbon fiber and glass fiber, phenolic resin, unsaturated polyester resin, polyvinyl fluoride, copper naphthenate, cobalt iso-octoate, a coupling agent, and an acrylonitrile-butadiene-styrene copolymer into the substrate layer, pasting the balance enhancement layer and the balance layer respectively, performing pressing, then sticking the decorative paper line layer and conducting pressing, applying an antibacterial paint, and performing drying to form the antibacterial surface layer. The invention adopts a multilayer structure to ensure the board strength, the coating also can effectively prevent scratching, the balance enhancement layer and the balance layer improve the tensile properties of the board, and the substrate layer is made of a resin material, is elastic and can absorb the impact of external force, and the construction is convenient and fast.

The invention discloses a halogen-free flame-retardant epoxy prepreg and a composite material thereof. The halogen-free flame-retardant epoxy prepreg comprises a fiber reinforcement and halogen-free flame-retardant epoxy resin, wherein the mass content of the fiber reinforcement in the prepreg is 50-70%, and the mass content of the halogen-free flame-retardant epoxy resin in the prepreg is 50-70%.The halogen-free flame-retardant epoxy resin comprises the following components in parts by mass: 100 parts of epoxy resin, 5-30 parts of a liquid phosphorus-containing flame retardant, 10-40 parts of a powdery phosphorus-containing flame retardant, 20-100 parts of an inorganic flame retardant, 3-6 parts of a curing agent, 1-5 parts of an accelerant and 1-10 parts of thermoplastic resin, whereinthe epoxy resin is composed of bisphenol type epoxy resin, phenolic aldehyde type epoxy resin and phosphorus-containing epoxy resin. The halogen-free flame-retardant epoxy prepreg is prepared by adopting a one-step method which is simple and efficient, and has good process performance and super-long storage stability. A composite material product prepared from the halogen-free flame-retardant prepreg disclosed by the invention has excellent flame-retardant and mechanical properties, and can meet the fireproof performance requirement on the composite material in the field of rail transits.

The invention discloses a rapid forming method of a composite material fireproof battery box for a vehicle, and belongs to the technical field of battery application. Due to application of a high-performance continuous fiber fabric and a reasonable structural laying design, lightweight of the battery box can be realized to a great extent; and meanwhile, when a composite material part is formed, afireproof layer material, quickly-cured flame-retardant resin and the high-performance continuous fiber fabric are utilized for one-time curing, and better flame-retardant, fireproof and heat-insulating effects are achieved. Due to application of the high-performance fiber fabric and the reasonable structural laying design, lightweight of the battery box can be realized to a great extent; by meansof an RTM technology rapid curing integrated forming mode, the takt time is short, process steps are simplified, the lightweight and fireproof requirements are met, and the cost is greatly reduced.

The invention provides an H-shaped cross bore chain-type concrete block, comprising a hollow cuboid I, a hollow cuboid II and a connecting block, wherein the hollow cuboid I is connected with the hollow cuboid II through the connecting block. Bosses are arranged on the middle parts of the upper ends of the hollow cuboid I and the hollow cuboid II while grooves are arranged on the middle parts of the lower ends of the hollow cuboid I and the hollow cuboid II; the bosses are correspondingly engaged with the grooves when the upper and lower concrete blocks are laid; and a heat insulating material is filled in a hollow cavity formed by laying the hollow cuboid I, the hollow cuboid II and the upper and lower concrete blocks. Masonry mortar or fine aggregate concrete is filled in a masonry gap between the upper and lower concrete blocks, so that direct force transmission of the concrete blocks can be achieved through four vertical ribs of the blocks to meet the demand on bearing blocks. The H-shaped cross bore chain-type concrete block disclosed by the invention solves the problem of a thermal bridge, and is small in thermal loss of wall body and good in heat insulating effect and fire preventing effect; when the blocks are laid, the upper and lower blocks are engaged with each other to accomplish chain-type masonry, and therefore, the block disclosed by the invention has good integrity and anti-seepage property, is high in bearing capacity and reduces the cost while the quality of a brickwork is improved.

The invention discloses a forming method for a composite grating. The forming method comprises the steps that grating reinforcing frame prepreg is laid on a lower mold; a grating rib prepreg is laid on a core mold; the core mold and the lower mold are combined, grating reinforcing frame prepreg continues to be laid on the lower mold, an upper mold and the lower mold are assembled, solidified and formed, and mold release is carried out. OOA closed mold integrated forming is adopted, forming is easy, the manufacturing cost is low, net forming can be achieved, and the product appearance is ensured. The vacuum bag pressing technology and the RTM technology are combined, the mold and equipment input cost is reduced, and the grating manufactured from Tg inflaming retarding prepreg meets fireproof requirements and is applicable to the field of rail traffic.

The invention relates to a split type on-water floating and energy-saving building structure system and a construction method. The split type on-water floating and energy-saving building structure system comprises an on-water floating structure and an underwater supporting structure. The on-water floating structure is composed of an FRP reticulated shell dome, an FRP overhung reticulated shell, FRP combination columns, an FRP sandwiched concrete combination bottom plate, guy rope devices with active control dampers, FRP cylindrical reticulated shells, floating FRP supporting bodies and an overall pipe inlet and outlet channel. The FRP reticulated shell dome is arranged on bosses of the FRP combination columns to form a closed roof structure. The lower end of the FRP overhung reticulated shell is fixed to the bosses of the FRP combination columns, and the upper end of the FRP overhung reticulated shell is connected to the FRP reticulated shell dome through pull rods with active control dampers. U-shaped swimming pools are formed in the two ends of the FRP sandwiched concrete combination bottom plate. The underwater supporting structure is composed of flexible spring inflation piles and a raft foundation. The part, between the FRP combination columns, of the FRP sandwiched concrete combination bottom plate is a sunken arc type bottom plate. According to the invention, the upper structure can be separated from the foundation, the buoyancy of water can be fully used, and the overall economical efficiency is high.

The invention provides a self-balancing prefabricated face and cast-in-situ core infilled wall which comprises positioning keys (1) arranged in the direction of an infilled wall body at intervals. The two sides of each positioning key (1) are prefabricated slabs (3) connected through connection keys (2), the middle and the upper end of each prefabricated slab are respectively provided with at least one pouring hole (4), a cavity (5) is formed between the prefabricated slabs (3) in pairs, and the cavities (5) are filled with core fillers (6). Due to the fact that the wall faces are the prefabricated slabs prefabricated in a large scale in a factory, requirements for the core fillers are reduced, the range of materials capable of being used is wide, and cost is reduced. A construction formwork is eliminated in wall face prefabrication, the two prefabricated wall faces are mutually connected inside to form a cavity mold, external construction fixing measures are eliminated, and the construction process is greatly simplified. Rapid hardening core fillers facilitate timely disassembling and cycling use of construction tools. The whole process from material compounding to pouring is mechanized, labor can be greatly saved, efficiency can be improved and cost can be reduced.

The invention relates to an insulation waterproof coating and a construction process thereof. The insulation waterproof coating comprises a hard bubble layer formed by foaming isocyanate, polyalcohol, foaming agent, catalyst and flame retardant, and a sealing layer formed by spraying an inorganic fiber-blended water-based binder outside the hard bubble layer by an inorganic fiber sprayer outside a waterproof layer. The insulation waterproof coating has both the advantages of spraying the polyurethane hard bubble material and the inorganic fiber; thus, a continuous seamless seal integer is formed between the inorganic fiber spraying material and the polyurethane hard bubble material, which can effectively block the heat conduction, improve the energy saving effect and meet the mechanical demand of building surface. The insulation waterproof coating can also well reduce the noise generated during the running of vehicles, meet the fire resistance requirement because of the nonflammable material inside and be processed into different colors on the surface to be more beautiful and decorative.

The invention discloses an intumescent flame retardant compounded two-dimensional nanosheet polyurethane flame-retardant paint, and relates to the technical field of fire prevention and flame retardance. The flame-retardant polyurethane composite material is prepared from the following raw materials in parts by weight: 100 parts of polyurethane resin, 30-80 parts of a flame retardant, 20-50 parts of a charring agent, 20-60 parts of a foaming agent, 0.1-4 parts of a wetting agent, 0.5-4 parts of a defoaming agent, 0.5-5 parts of a dispersing agent, 0.5-8 parts of an anti-settling agent, 1-60 parts of pigment and filler, 0.01-3 parts of a flatting agent, 10-100 parts of a diluent and 10-100 parts of a curing agent. A flame-retardant heat-insulating layer can be formed on the surface of a fire-fighting pipeline of power equipment at a time, an intumescent flame retardant can form an intumescent carbon layer during combustion, the intumescent carbon layer and zirconium phosphate nanosheets are synergistically flame-retardant, and a compact and dense carbon layer is formed on the surface of carbon residues, so that the flame-retardant property of the material is further improved, and the material has excellent fire-proof capability; therefore, deformation of the fire-fighting pipeline of the power equipment is delayed, improvement of fire rescue efficiency is facilitated, and great economic benefits and social benefits are achieved.