44results about How to "Good fire protection" patented technology

The invention discloses a phosphorus-containing and nitrogen-containing expansion type flame-retardant polymer and a preparation method thereof. The preparation method is characterized in that: the phosphorus-containing and nitrogen-containing expansion type flame-retardant polymer is prepared by solution polycondensation reaction or melt polycondensation reaction of diphosphorus acylchloride or diphosphorus acylbromide and a diamine functional group-containing compound. The expansion type flame-retardant polymer comprises phosphorus-containing and nitrogen-containing phosphamide with a structure unit formula shown in the specifications, wherein n is an integer of from 1 to 200; R1 is oxygen or sulphur; and R is alkoxy, alkylthio, aryloxy or arylthio. The product of the invention has high compatibility with a high molecular material matrix, difficult transfer and excellent durability. The preparation method has the advantages of simpleness, easy control, high yield, wide sources of the required raw materials and easy industrialized production. A high polymer with a flame-retardant function can be directly prepared, or the high polymer serving as a flame-retardant additive can be added into various polyesters, polyamide, polyolefin, epoxy resin, polystyrene, high impact polystyrene or acrylonitrile butadiene styrene (ABS) polymer.

The invention discloses a steel pipe-reinforced concrete laminated framework structural system, which belongs to the field of structural engineering in civil engineering. The steel pipe-reinforced concrete laminated framework structural system is characterized in that laminated sections formed by wrapping reinforced concrete outside hollow steep pipes are adopted for beams and columns of the system. The hollow steel pipes are adopted inside, and the sections are unfolded, so that high rigidity is realized, the dead weight of the structure is reduced effectively while the using amount of concrete is reduced, and the acting force in earthquakes is reduced; and meanwhile, good fire-proof and corrosion-resistant protection is provided for the steel pipes by using the wrapped reinforced concrete. In node regions of the system, steel pipes in columns are connected with each other, and steel pipes in beams are welded on the steel pipes in columns through reinforced ring plates. Column longitudinal bars are arranged in a through way; a part of beam longitudinal bars go deep into nodes after bypassing the steel pipes in columns, and a part of beam longitudinal bars are welded on the steel pipes in columns; and beam and column stirrups are thickened appropriately in the node regions. The steel pipe-reinforced concrete laminated framework structural system is applied to the structural forms of frameworks, framework-shear force walls and the like, and is suitable to be taken as a main body structural system of large-sized high-rise, super-high-rise or huge structures.

The invention discloses a fire-proof protecting device of a shock-insulation rubber supporting seat. The fire-proof protecting device comprises upper heat-insulation profiles, lower heat-insulation profiles, aluminum silicate fiber blankets connecting pieces and fire-proof blocking materials. The fire-proof blocking materials are adhered between the contact faces of the upper heat-insulation profiles and upper layer columns. The lower heat-insulation profiles are arranged on the top faces of lower layer columns in a masonry mode through fire-proof adhesives. The fire-proof blocking materials are adhered between the upper heat-insulation profiles and the lower heat-insulation profiles. The spaces between the upper heat-insulation profiles and the shock-insulation rubber supporting seat as well as between the lower heat-insulation profiles and the shock-insulation rubber supporting seat are filled with the aluminum silicate fiber blankets. Through a fire-proof protecting construction method, good fire-proof protecting for the shock-insulation rubber supporting seat can be achieved, it can be ensured that fire-proof protecting is not destroyed during shock-insulation supporting seat deformation, and meanwhile the method has the advantages of being convenient to operate and wide in application range.

The invention relates to the technical field of electrical equipment, and discloses a practical electrical equipment fireproof device which comprises a shell. A transmission shaft is arranged in the shell, a rotating disc is arranged on the surface of the transmission shaft, a push rod is arranged on the lower surface of the rotating disc, and a rotating rod is movably connected to the end, away from the rotating disc, of the push rod; and an auxiliary spray head is arranged at the lower end of the rotating rod, a rotating cylinder is movably connected to the end, away from the shell, of the transmission shaft, a ratchet wheel is arranged in the rotating cylinder, a first gear is arranged on the surface of the end, close to the rotating cylinder, of the transmission shaft, and a transmission gear is arranged in the rotating cylinder. According to the practical electrical equipment fireproof device, through cooperative use of the transmission shaft and the rotating disc, cooperative use of the rotating disc and the push rod and cooperative use of the rotating rod and the auxiliary spray head, the auxiliary spray head can achieve a reciprocating rotation effect, the spraying area of the auxiliary spray head can be effectively increased, the fireproof effect of electrical equipment is good, and fireproof protection of the electrical equipment is facilitated.

The invention discloses a novel composite flame-retardant cable. The cable has a two-layer flame-retardant protection function because a ceramic silicon rubber composite tape is wound outside a conductor, and a mica tape is wound outside the ceramic silicon rubber composite tape; two high-flame-retardant materials are used for protection when the cable encounters fire and is burnt, and a closed ceramic pipe is formed when the outer flame-retardant silicon rubber tape encounters the fire and is burnt, so that flames and spraying water can be insulated, the inner mica tape is protected from damage, and the inner mica tape still can play a good flame-retardant protection effect even if the silicon rubber ceramic pipe is broken. According to the ceramic silicon rubber composite tape winding structure, the cable diameter can not be greatly increased, the cable is flexible when being used normally, and materials can be saved; specific extrusion equipment is not required to be arranged during processing; and the ceramic silicon rubber composite tape is wound inside an outer sheath, and the surface performance of the cable is not influenced at all. The cable still can normally work when the cable is burnt for over 120min at a temperature of 950+50 DEG C, and the water is immediately sprayed lasts for 3 minutes.

The invention provides a cement foam insulation and decoration integrated board, which includes a cement foam board, the cement foam board is provided with a base layer for surface modification, and the base layer is provided with an inorganic material for decoration and fire prevention. Finishing layer, the inorganic finishing layer is also provided with an overcoat layer for protection, wherein the thickness ratio of the base layer, the inorganic finishing layer and the overcoat layer is 1:(1.5~3):(0.3~0.5) ; The present invention combines the inorganic facing layer and the cement foam board through inorganic bonding, which has better fire prevention, heat preservation and sound insulation effects, and is more beautiful. The present invention is convenient in construction and high in work efficiency. The construction cost is low. In addition, the invention is made of inorganic materials as a whole, and does not need to use plants or organic chemical raw materials. Compared with organic materials, it has low-carbon and environmental protection effects. There is no dust during installation, no peculiar smell after installation, and no harmful chemical emissions. Products, with the advantages of green environmental protection.

The invention discloses a power grid adaptability testing device which comprises a test device shell, a wiring terminal, a fireproof felt, a rubber column, an insulation base and a movable pulley, wherein the top end of the test device shell is in threaded connection with a lifting ring, and the inner side of the test device shell is connected with an installation plate through an insulation block, the lower end of the wiring terminal is in threaded connection with the installation hole, the installation hole is formed in the installation groove, and the fireproof felt is located between the test device shell and the installation plate, the rubber column is located between the lower portion of the outer side of the shell of the test device and the inner side surface of the damping device,and a damping spring is arranged between the lower end surface of the test device shell and the inner bottom surface of the damping device, the insulation base is arranged below the interior of the test device shell, and the movable pulley is located at the lower end of the damping device. The power grid adaptability testing device is characterized in that the fireproof felt is arranged between the installation plate and the side wall of the test device shell, so that the fireproof protection of the equipment inside the test device shell can be achieved.

The invention discloses a concrete block with a sound insulation function. The concrete block comprises a concrete block main body, connecting convex blocks, rectangular open holes, a locating column,a concrete layer, a fireproof layer, a thermal insulation layer, a thermal insulation board and a sound insulation layer; locating holes are formed in the concrete block main body, and a fixed grooveis formed in the middle position on the concrete block main body; the connecting convex blocks are located at the rear side of the concrete block main body, and the front side of the concrete block main body is provided with connecting grooves; the rectangular open holes are located inside the concrete block main body, and the lower end surface of the concrete block main body is provided with a fixed block; the thermal insulation layer is located at the inner side of the fireproof layer; the thermal insulation board is located inside the thermal insulation layer; the sound insulation layer islocated on a middle position inside the concrete block main body; and the inside of the sound insulation layer is filled with sound insulation asbestos. According to the concrete block with the soundinsulation function, the sound insulation layer is arranged on the middle position of the concrete block main body, so that the sound insulation effect of a building can be favorably improved.

The invention provides a fireproof plugging module and a preparation method thereof. The fireproof plugging module comprises 30 to 45 parts of compound polyether polyol, 5 to 15 parts of a flame retardant, 5 to 15 parts of low-temperature expanded graphite, 3 to 5 parts of a moisture-proof agent, 0.2 to 0.4 part of a catalyst, 15 to 25 parts of a curing agent, 0.1 to 0.3 part of a plasticizer and0.2 to 0.5 part of deionized water. The fireproof blocking module is good in weather resistance, capable of expanding at low temperature, easier to cut and free of slag falling during cutting.

The invention discloses a building brick and a manufacturing method thereof and belongs to the technical field of building materials. The building brick is prepared from the following components in parts by weight: 40-60 parts of expanded perlite, 25-35 parts of ceramic clay, 12-18 parts of quartz sand, 5-15 parts of cement, 5-15 parts of talcum powder, 4-8 parts of quick lime and 10-20 parts of water. The manufacturing method of the building brick comprises the following steps: (1) mixing and stirring the expanded perlite, the quartz sand, the cement, the talcum powder, the quick lime and thewater in parts by weight so as to obtain a slurry mixture A; (2) mixing and stirring the ceramic clay, the cement, the talcum powder, the quick lime and the water in parts by weight so as to obtain amixture B; (3) pouring the mixture A in a gap between an outer-layer baffle plate and a middle-layer baffle plate, pouring the mixture B in a gap between the middle-layer baffle plate and an inner-layer baffle plate, pulling out the middle-layer baffle plate, and further sufficiently pressing by using a pressing plate; 4) drying a building brick, molded by using a mold, on the clean ground in theair. The building brick made by using the manufacturing method is good in heat-preservation and thermal-insulation effect and good in fireproof function.

The invention belongs to the technical field of building engineering, and particularly relates to a track climbing type integral building construction scaffold convenient to disassemble. The scaffoldcomprises a wall body, wherein the wall body is fixedly connected with a support; the wall body is detachably connected with a plurality of sets of climbing pipes; the support and the climbing pipes are connected in a matched mode to be fixed to the wall body; the adjacent climbing pipes are connected in a clamped mode; the climbing pipes are provided with fire-fighting devices in a communicatingmode; and the ends, away from the wall body, of the climbing pipes are connected with lifting assemblies in a meshed mode. According to the scaffold, the track climbing type integral building construction scaffold convenient to disassemble is arranged, the lifting mode of a transmission electric hoist device on a frame body and personnel is replaced, so that the efficiency of lifting and mountingthe frame body by the workers in the building construction process is effectively improved, the moving speed of the workers at all parts is increased, meanwhile, the device can ensure that the frame body and the workers cannot shake in the lifting process to a certain extent, and the safety of building construction is improved.

The invention discloses a steel structure water injection fireproof protection method which comprises the steps that when a fire occurs, the outer surface of a steel structure body is directly exposedto flames to heat the steel structure body; the outer surface of the steel structure body is heated by fire to conduct heat to the inner surface of the steel structure body; a cavity in the inner surface of the steel structure body transfers heat to cooling water in a water injection pipe through heat convection, and parameters in the cooling water in the water injection pipe are tested; test data of the cooling water flowing in the water injection pipe is analyzed and processed through a least square method to obtain a heat exchange criterion relational expression in the water injection pipeand a Fanning friction coefficient criterion relational expression; through establishment of the relational expression, the minimum driving force and the minimum water flow of the steel structure body needing to be protected by cooling water in the water injection pipe when a fire occurs are judged. By means of the scheme, the purpose of fireproof protection of the steel structure is achieved, and high practical value and popularization value are achieved.

The invention relates to a solvent-free epoxy intumescent fireproof coating and a preparation method thereof, and belongs to the field of coatings. The component A of the solvent-free epoxy intumescent fireproof coating is prepared from the following components in parts by mass: 10 to 30 parts of epoxy resin, 5 to 15 parts of diluent, 0.3 to 0.8 part of defoaming agent, 0.1 to 3 parts of adhesion promoter, 5 to 20 parts of chlorinated paraffin coated pentaerythritol, 20 to 40 parts of acid donor, 6 to 15 parts of inorganic nano filler, 1 to 6 parts of reinforced fiber and 0.1 to 1 part of rheological agent; the component B is an epoxy curing agent, and the component A and the component B are uniformly mixed for use. The chlorinated paraffin coated pentaerythritol prepared by the preparation method disclosed by the invention improves the hydrolysis resistance and thermal stability of pentaerythritol, is excellent in humidity and heat resistance when being applied to a solvent-free epoxy intumescent fireproof coating, and can be widely applied to fireproof protection of indoor and outdoor steel structures; and meanwhile, the cable has excellent fire-resistant reliability, corrosion resistance and excellent mechanical properties.

The invention provides a fireproof heat insulation plate and a preparation method thereof. The fireproof heat insulation plate comprises 30 to 50 parts of polyether polyol, 4 to 10 parts of a flame retardant, 0.1 to 1 part of a catalyst, 1 to 5 parts of a chain extender, 5 to 15 parts of expandable graphite, 0.1 to 2 parts of a pigment, 0.1 to 3 parts of aerogel, 45 to 60 parts of a base material and 10 to 25 parts of a surface material. The fireproof heat insulation plate has the advantages of being stable in structure, good in protectiveness and capable of improving the heat insulation performance of the ultra-thin plate.

The invention discloses a production method of a high-fire-retardant and fire-resistant cable for the CRH train, and belongs to the technical field of the cable. The method comprises the following steps: (1) insulation layer extrusion: selecting a single screw extruder in 80mm or 1200 to extrude according to the cable diameter, wherein the extrusion temperature is controlled at 160-180 DEG C; (2) cable-forming: selecting a cable former according to the core number, selecting a pair twister if the core number is less than 8, and selecting a cage twister if the core number is more than 8; (3) fireproof material filling: filling the fireproof material between the cores in the core cable-forming process; (4) wrapping a fireproof layer: wrapping the fireproof layer by using the longitudinal wrapping machine after the cable forming, wherein the lapping coverage rate of the fireproof layer is not less than 30%; and (5) sheath layer extrusion: selecting the single screen extruder in 800 or 120mm to extrude, wherein the extrusion temperature is controlled at 160-170 DEG C. The cable obtained in the invention can guarantee and maintain the unchanged transmission characteristic when being exposed to 800 DEG and in a mechanical shock environment; and the use performance is good.

The present invention provides one kind of fireproof paper containing expansion graphite and its making process. The fireproof paper contains expansion graphite in 20-80 wt% except paper fiber. The fireproof paper making process includes the steps of: preparing material, preparing paper pulp, mixing, making paper sheet and processing. The fireproof paper has excellent fireproof performance, wide application range, simple making process and ideal use effect.

The invention discloses an assembly type formwork-removal-free prefabricated floor bottom plate structure. The structure is formed by combining a formwork-removal-free prefabricated bottom plate, longitudinal steel bars, C-shaped light steel, longitudinal stiffening ribs, transverse stiffening ribs and galvanized iron sheet hanging rings. The structural system is light in weight and very convenient to transport, hoist and assemble; according to the structure, the content of concrete is not increased, the content of steel bars is not increased, the cost is saved for a construction party, the aim of fast period is achieved, the workload of deepening design is saved for a design party, the construction progress is accelerated for the construction party, the construction quality is better controlled, and the productivity is completely released for a component producer; therefore, all parties participating in the project obtain respective benefits.