57results about How to "Conducive to on-site construction" patented technology

The invention relates to endophragm anticorrosion dope of carbon steel material vaporizing equipments in seawater desalting craft of low temperature and multiple effect distillation. It mainly comprises basic materials, pigment, padding, auxiliary agent and solvent. The basic materials are one or more than one kind of epoxy resin and painthydroxybenzene modified thermostable resins. The painthydroxybenzene modified thermostable resins are one or more than one kind of painthydroxybenzene silicon resin, painthydroxybenzene furol resin and painthydroxybenzene titanium resin got from chemical modification of painthydroxybenzene distilled from fresh paint; the color padding is one or more than one kind of titanium oxide powder, talcum powder, mica powder, mica ferric oxide, gas phase silicon dioxide, silica flour, porcelain powder and bentonite. The dope is solidified at room temperature. It has excellent permeability resistance of water, seawater and vapor at high temperature and is suitable to anticorrosion of low temperature.

The invention discloses a novel heat-insulating flame-retardant building material which comprises the following raw materials in parts by weight: 60 to 80 parts of aggregate, 45 to 60 parts of gypsum, 10 to 25 parts of ash calcium powder, 6 to 10 parts of a toughening agent, 4 to 8 part of an interface modifying agent, 3 to 5 parts of a flame retardant and 1.5 to 5 parts of a foaming agent. The building material provided by the invention has an excellent heat-insulating property and a significant flame-retardant property, is suitable for fire-proof door plates, sandwich plates, heat-insulating plates and various composite plates, has high application safety coefficient and low industrialization cost, is favorable for on-site construction and operation, and contributes to improvements on economic and social benefits.

The invention discloses an asphalt polyurethane waterproof coating suitable for a cement base layer and a preparation method and application of the asphalt polyurethane waterproof coating. Raw materials of the asphalt polyurethane waterproof coating comprise asphalt, a compatilizer, a water removal agent, a catalyst, filler and a terminated polyurethane prepolymer, wherein the terminated polyurethane prepolymer is prepared through a reaction of a compound which is shown in a formula (I) and a polyurethane prepolymer, and the terminated polyurethane prepolymer contains no isocyanate-terminatedgroups; and the preparation method comprises the following steps: preparing the terminated polyurethane prepolymer firstly, and then mixing the terminated polyurethane prepolymer with the remaining raw materials so as to obtain the coating. The invention further discloses application of the waterproof coating in construction of an asphalt waterproof coiled material on the cement base layer. The waterproof coating has a safe preparation process, the coating can be coated directly on the cement base layer with high content of water when the coating is in use, and a reaction is performed betweenthe hydrolyzed coating with silicate in the cement, so that the bonding force on the wet base layer is improved; and excellent bonding strength can be formed between the coating and the asphalt waterproof coiled material, particularly a short time of surface drying and hard drying and moderate viscosity are achieved, the heating step before construction can be avoided basically, and on-site construction is facilitated.

The invention relates to a high-temperature powder retarder in oil well cement. Ethylenediamine is used to prepare methylene phosphonate through Mannick reaction and is mixed with 0.10-0.30 weight parts of citric acid, 0.05-0.10 weight parts of tartaric acid and 0.10-0.20 weight parts of gluconic acid. The applicable temperature of the retarder is 60-130DEG C, the retarder can be used for cement paste systems with densities of all kinds, the compatibility with various additive systems is strong, the performance of cement paste is not influenced, a cement paste body prepared by using the retarder is stable, the thickening transition time is short and the thickening time is adjustable; and the compression strength of set cement is developed fast and the high-temperature powder retarder can meet the need of medium-deep well cementation engineering.

The invention discloses a railway ballastless track bed steel bar resistance testing method which comprises the following steps: firstly, connecting upper and lower steel bar frames in a ballastless track bed slab and erection bars for connecting the upper and lower steel bar frames by using insulating clamps, horizontally penetrating measuring iron wires into the upper and lower steel bar framesrespectively, enabling the measuring iron wires to be tightly attached to all longitudinal steel bars in the layer respectively, and reserving a measuring end; two measuring end buttons of a direct-current 500V megger are respectively connected with a copper wire, one measuring end button is connected with a probe, and the other measuring end button is connected with a measuring iron wire; and shaking the megger, enabling a detector to respectively touch each transverse steel bar and each erection bar of the upper-layer or lower-layer steel bar frame to be detected by the probe, and recordingresistance values of the transverse steel bars and the erection bars. The detection method provided by the invention is simple, is beneficial to field construction, saves time for ballastless track bed slab construction, and improves the construction efficiency of the ballastless track.

The invention relates to an elevation difference type seismic isolation structure of a building and a surrounding site of the building in the field of construction engineering. According to the technical scheme, the elevation difference type seismic isolation structure includes a seismic isolation joint, and a first civil engineering component and a second civil engineering component which are located on both sides of the seismic isolation joint, the first civil engineering component overhangs a first bridging piece in the direction of the seismic isolation joint in a cantilevered mode, spans the seismic isolation joint, and is placed on the upper part of the second civil engineering component, and the width of the first bridging piece satisfies the maximum deformation width covering the seismic isolation joint; and a gap is left between the first bridging piece and the second civil engineering component, and the gap is filled with a flexible material. According to the elevation difference type seismic isolation structure, the safety of the seismic isolation joint of the building and the surrounding site of the building is fully ensured, various complex working conditions are adapted, the usual normal use function of the building and the surrounding site of the building is met, normal use of the building and the surrounding site of the building and quick maintenance after the earthquake can still be ensured when the larger earthquake occurs within the design intensity range, and meanwhile, the advantages of universality and standardization are achieved.

The invention relates a using method of a compound mineral medicament. The compound mineral medicament comprises an A medicament formed through spiral extruding granulation by using magnesium mineraland NaOH as raw materials and a B medicament formed through high-speed tabletting by using Ca(OH)2, the magnesium mineral and NaOH as raw materials respectively. Raw water in a lead-acid storage battery enterprise goes through a raw water tank, an oil separation tank, an A medicament dosing tank, an A medicament reaction tank, a B medicament dosing tank, a C medicament dosing tank, a polyacrylamide (PAM) flocculation tank, an inclined plate sedimentation tank, a mechanical filter and a clean water tank which are connected in sequence, so that effluent water reaches the standard. According to the using method of the compound mineral medicament, NaOH can be replaced, so that the risk and cost of wastewater treatment are reduced, the addition of sodium salt is avoided, the concentration of sulfate is reduced, the conductivity is lowered, and the reuse of recycled water is realized; and callback is carried out without using sulfuric acid in the treatment process, so that close-loop production of lead element is guaranteed.

The invention discloses a synergetic operating device with integration of LNG storage tank inner pipelines and longitudinal maintenance ladders. The synergetic operating device comprises three LNG storage pipelines and longitudinal maintenance ladders which are arranged in an LNG storage tank, wherein the three LNG storage tank pipelines are arranged at the bottom of the LNG storage tank; connection lines in the horizontal direction are triangular; the three LNG storage tank pipelines are parallel to one another; a plurality of annular connection parts are welded on the LNG storage tank pipelines; three annular connection parts, arranged on the same plane, on the three LNG storage tank pipelines are connected with one another in a welding mode by virtue of horizontal connection parts; the longitudinal maintenance ladders are arranged on two adjacent horizontal connection parts; each longitudinal maintenance ladder comprises two parallel vertical pull rods and a plurality of step beams which are connected among the vertical pull rods. According to the synergetic operating device, the maintenance ladders and the pipelines are combined into an integrated structure; the safety of the structure is improved; the stress of the single pipeline constraint position is alleviated; the site construction is facilitated; the construction period can be shortened.

The invention relates to a quick pipeline leakage stopper and a processing and forming method of the quick pipeline leakage stopper. A housing of the leakage stopper is manufactured through fiber reinforced resin by utilizing one of the methods of wet forming, resin transfer molding, vacuum forming, compression molding and jet molding; the cross section of a sealing strip in a rubber sealing component has the characteristics of being wide in upper part and narrow in lower part, wherein the wide side has a relatively large contact area during pressing two half housings in an opposite way, and therefore, relatively great rubbing sealing force is produced; the narrow side is beneficial for positioning the sealing strip in a flange surface at the side edge of the housing, as well as saving rubber materials. The quick pipeline leakage stopper is advantaged by integrating the advantages of the current cast iron leak stopper which has high strength, and the plastic leakage stopper which has light weight and corrosion resistance; and the quick pipeline leakage stopper has a wide application range, and achieves a relatively great sealing effect under the condition that the consumption of the rubber materials is reduced.

The invention discloses a temporary operation platform system and a construction method thereof. The system comprises a set of splicing standard sections, an operation platform connected to the tops of the standard sections, bearing parts connected between the operation platform and the standard sections, connecting pieces connected to the standard sections in the vertical direction in a spaced mode, and attaching pieces connected between the standard sections and an attaching structure. The operation platform comprises a left operation platform body and a right operation platform body, each of the left operation platform body and the right operation platform body comprises a bottom platform piece connected to the tops of the standard sections, adjustable check pieces and a fixed check piece, wherein the adjustable check pieces and the fixed check piece are perpendicularly connected to the upper portion of the bottom platform piece. In construction, by arranging the bottom platform pieces, the fixed check pieces and the adjustable check pieces, convenient and fast installation and circulation can be achieved, and construction materials and time can be saved; and through the designof stretching rods and fixed rods in the bottom platform pieces and the adjustable check pieces, adjustment can be conveniently carried out according to the dimension needed by the construction platform on the basis of meeting the bearing and side fence demands, and field construction is facilitated.

The invention discloses an exterior wall decoration type universal cable trough, relates to the technical field of constructional engineering, and aims to solve the problems that an existing outer wall cable is exposed and externally hung, maintenance is inconvenient, meanwhile, visual attractiveness is not achieved, and urban beautification is affected.The exterior wall decoration type universalcable trough comprises a profiled groove, wherein the profiled groove comprises an upper cover and a groove body, the inner side wall of the groove body is a plane, the outer side wall of the groove body is an arc curved surface, the lower end of the inner side wall of the groove body and the lower end of the outer side wall are in transition connection through a smooth curved surface, metal connecting pieces are fixedly connected to the inner side groove walls of the two ends of the groove body, and the upper cover. The device is used for placing the cable exposed out of the building.

The invention discloses a preparation method of a waterborne polyurethane coating with good corrosion resistance, and particularly relates to the technical field of anticorrosive coatings, and the prepared waterborne polyurethane coating has excellent corrosion resistance, good acid and alkali resistance, scratch resistance, strong adhesive force and high hardness; he method comprises the following steps: carrying out ball milling treatment on graphene oxide and 3, 5-diamino-1, 2, 4-triazole at high temperature, so that on one hand, amino in the 3, 5-diamino-1, 2, 4-triazole can react with anepoxy group on a graphene oxide sheet layer, and a large conjugated system is formed by cyclic conjugation of the 3, 5-diamino-1, 2, 4-triazole and the graphene oxide; the flow of electrons is facilitated, and the electrical conductivity is enhanced; on the other hand, the 3,5-diamino-1,2, 4-triazole provides amino and triazole with stronger activity, nitrogen atoms in the triazole can be complexed with cobalt ions added subsequently and oxygen atoms in calcium titanate, so that more metal ions are introduced to the surface of the graphene oxide to form a conductive network in a high polymer matrix, and the corrosion resistance of the obtained coating is improved.

The invention discloses a thermoplastic composite solid propellant and a preparation method thereof. The propellant comprises the following components in percentage by mass: 58-75% of an oxidizing agent; 8%-20% of metal fuel; 5%-15% of a thermoplastic adhesive; 0.2% to 12% of high 1, 2-polybutadiene; 0.2%-0.8% of sulfur; 0.2% to 0.8% of thiocarbamate; the thermoplastic polymer adhesive can be trans-1, 4-polyisoprene or a mixture of the trans-1, 4-polyisoprene and acetylene black, and the thermoplastic polymer adhesive can be a mixture of the trans-1, 4-polyisoprene and acetylene black. The propellant provided by the invention can realize melt mixing and molding at a relatively low temperature, and complete rapid crystallization molding at room temperature, and meanwhile, the solid propellant of the type can be recycled, so that the processing difficulty and the production cost are reduced. Compared with a current thermoplastic propellant, the melting mixing temperature of the propellant is lower than 20 DEG C, and meanwhile, the low-temperature mechanical property of the propellant is remarkably superior to that of the current thermoplastic propellant.

The invention provides a carbon fiber rod, a power cable and a manufacturing method of the carbon fiber rod, and relates to the technical field of power cables. The carbon fiber rod comprises a steel core special-shaped carbon rod; and the steel core special-shaped carbon rod comprises a dispersible steel wire rope and a plurality of bonded special-shaped carbon rods, the steel wire rope is arranged in the center of the plurality of special-shaped carbon rods and is stranded with the plurality of special-shaped carbon rods, the plurality of special-shaped carbon rods are tightly twisted in a circumferential manner, and the gap between the surfaces of the adjacent special-shaped carbon rods is zero, gaps between the plurality of special-shaped carbon rods and the steel wire rope are filled with an adhesive, and the outer layers of the plurality of special-shaped carbon rods are coated with insulating layers. In the prior art, a twisted composite reinforcing core is formed by twisting round carbon rods, a compression type strain clamp cannot be used, and if a resin pouring joint technology is adopted, the overall length is large. With the carbon fiber rod, the power cable and the manufacturing method of the carbon fiber rod adopted, the above technical problems can be solved.

The invention relates to the field of communication base station electric control, and provides a power-off detection method and a power-off sensor. The invention aims to solve the problem that base station power supply cannot be effectively controlled. The invention provides a power failure sensor. The power-off sensor comprises S11, acquiring an AC state; and S12, judging the operation conditionof the AC, and outputting a signal according to the operation condition of the AC. Through optimization of the method, the construction management and control link during installation is simplified,on-site construction is facilitated, and the number of circuit elements is reduced.

The invention relates to the technical field of oil field well repair, in particular to a plugging cement paste system suitable for petroleum well repair of strata in Yayaozu. The cement paste systemconsists of dry powder and water. The dry powder comprises the following components in parts by mass: 100 parts of silicate superfine cement dry powder, 30 parts of G-grade silicate cement dry powder,10 parts of silicon powder, 0.6 part of flexibilizer dry powder, 0.6 part of expanding agent dry powder and 0.5 part of carbon fiber dry powder; the dry powder and water are blended into a slurry product with the density of 1.89 g/cm <3>. The plugging cement paste system is high in binding power, good in impact resistance, high in strength, good in performance, beneficial to on-site constructionand good in plugging effect; and the pressure test of a plugged well section can meet design requirements after plug drilling.

The invention discloses a light cable plate strip for a power system and a preparation method of the light cable plate strip. The light cable plate strip comprises a protective shell layer, a core material and plastic pipelines; the core material is made of foaming cement with the compressive strength not lower than 5 MPa and the volume weight not higher than 800 kg/m<3>, and the plastic pipelines are evenly distributed in the core material and used for cables to penetrate through; and the protective shell layer wraps the core material and is used for protecting the core material and the plastic pipelines in the protective shell layer, and the protective shell layer is made of reactive powder concrete. The prepared cable plate strip has better waterproof, anti-seepage and anti-erosion performance, compared with a common concrete cable plate strip, the self weight is reduced by nearly 40%, the material consumption is greatly reduced, the production cost is reduced, site construction is facilitated, and the site construction effect is improved.