342results about "Surface layering apparatus" patented technology

A pretreatment mixing and stirring device includes a cylindrical housing having a top plate, a bottom plate arranged to oppose to the top plate, a side plate arranged between the top plate and the bottom plate, and a mixing and stirring region where a calcined gypsum and an additive are mixed and stirred in an interior surrounded by the top plate, the bottom plate, and the side plate, a disk-shaped rotating plate arranged inside the housing, a rotating drive shaft, penetrating the top or bottom plate, and coupled to the rotating plate, a calcined gypsum supply port, arranged in the top plate, and supplying the calcined gypsum to the mixing and stirring region, and an additive supply port, arranged in at least one of the top and side plates, and supplying the additive to the mixing and stirring region.

The invention discloses an energy-saving building material processing and forming mold for hydraulic engineering, and relates to the technical field of energy-saving building material production. The die assembly comprises a plurality of die cavities formed in the top of the base, pressing blocks arranged above the die cavities correspondingly, linkage blocks arranged above the pressing blocks correspondingly and a lifting assembly used for driving the linkage blocks to ascend and descend synchronously. The combined exhaust mechanism comprises a plurality of exhaust channels formed in the pressing block, an elastic assembly arranged between the pressing block and the linkage block and a plurality of exhaust anti-blocking integrated assemblies installed at the bottom of the linkage block. Air in gaps of fly-ash brick raw materials is gradually exhausted, the problem that the forming quality of the fly-ash brick is influenced by air holes existing in the fly-ash brick after compression forming is avoided, the raw materials entering the exhaust channel are extruded out through the flattening block, the top of the fly-ash brick is flattened, and the problem that the surface of the fly-ash brick after forming is uneven and later use is influenced is solved.

The invention discloses a polymer cement-based repairing material for stone sculptures and a repairing method of the polymer cement-based repairing material, and belongs to the technical field of cultural relic repairing. The repairing material is prepared from the following components in parts by mass: 50 to 70 parts of PO.42.5 ordinary Portland cement, 20 to 30 parts of water, 5 to 15 parts of calcined kaolin, 0.03 to 1 part of nano silicon oxide, 1 to 3 parts of nano calcium carbonate, 0.01 to 0.03 part of organic silicon defoaming agent, 0.01 to 0.04 part of surfactant and 2 to 10 parts of vinyl acetate-ethylene copolymer. The polymer cement-based repairing material prepared by the invention can realize high bonding strength on a stone matrix and reversible removal at the same time. The polymer repairing material is simple in preparation process and green and environment-friendly in production, and has a wide application prospect in the field of repairing of cultural relics such as stone sculptures and the like.

This invention discloses a prefabricated fireproof and thermally insulated sandwich wall panel and its manufacturing method. The key technical points are: the prefabricated fireproof and thermally insulated sandwich wall panel includes an inner concrete leaf wall, a sandwich insulation layer, and an outer leaf wall panel, wherein the sandwich insulation layer is located between the inner concrete leaf wall and the outer leaf wall panel. This invention achieves integrated structural, thermal insulation, and decorative functions; reduces weight by more than 20% while maintaining the same energy-saving effect; improves energy-saving performance by more than 30% under the same thickness conditions; effectively reduces the thermal bridging effect of the exterior wall panel; and improves the fire resistance limit of prefabricated components under fire or high-temperature conditions.

The invention discloses a high-porosity low-thermal-conductivity cement aerogel plate and a preparation method thereof, and belongs to the technical field of preparation of aerogel materials. The method comprises the following steps: preparing nano water-saturated resin from sodium polyacrylate alkali-resistant water-absorbent resin, mixing the nano water-saturated resin with cement, silica fume and other raw materials, and performing strickling or spray layering molding and microwave heating curing to obtain a finished product. Through the synergistic effect of the nanometer sacrificial template and microwave curing, the porosity of the product is larger than or equal to 96%, the heat conductivity coefficient is smaller than or equal to 0.026 W / (m.K), the compressive strength is larger than or equal to 0.8 MPa, the problems that in the prior art, the porosity is insufficient, the heat conductivity coefficient is high, the period is long, and performance is difficult to consider are solved, the process is simple and controllable, and the method is suitable for large-scale application of building heat preservation.

The present invention discloses a wood veneer wall construction method based on a novel composite board, a composite board, and a preparation method, which belongs to the technical field of wood veneer wall construction. The method comprises the following steps: first, building a skeleton outside a wall, the skeleton being close to the wall, and fixing the skeleton to the wall; second, preparing a wood veneer wall composite board, the wood veneer wall composite board comprising a high-strength aerogel integrated insulation board and a surface wood veneer layer; third, spraying concrete on the wall between the skeletons to form a concrete layer; and fourth, installing the wood veneer wall composite board on the wall, with the side of the wood veneer wall composite board without the surface wood veneer layer being attached to the concrete layer, thereby achieving fixed installation of the wood veneer wall composite board. Through the above-mentioned method, the present invention has the following advantages: (1) safety: good flame retardant effect; (2) energy saving: good thermal insulation effect; (3) comfort: high-efficiency sound insulation can be achieved; (4) health: mildew-proof effect; (5) environmental protection: low carbon and zero formaldehyde.

This invention belongs to the field of ceramic composite material manufacturing technology, specifically relating to a method for preparing SiC composite materials based on cold spraying and silicon infiltration. SiC powder is prepared into a suspension, which is then deposited onto a substrate using a cold gas-powered spraying system to form a porous SiC preform coating. The preform coating undergoes post-curing to enhance its cohesive strength. Finally, melt silicon infiltration is performed, causing silicon to react with carbon in the preform to generate a new SiC phase that fills the pores, resulting in a high-density, high-performance SiC composite component. This method combines the advantages of low-temperature forming in cold spraying with silicon infiltration technology. The relatively low substrate temperature during cold spraying effectively avoids the adverse effects of high temperatures on the material structure, maintaining the stability of the original SiC phase. By adjusting the spraying parameters and matching the silicon infiltration process, the free silicon content and the distribution of the newly generated SiC phase in the composite material can be precisely controlled, further improving the material's density and mechanical properties.

The application discloses an indoor moisture-proof and water-resistant gypsum board and a preparation method thereof, and belongs to the technical field of gypsum board preparation. The preparation method of the indoor moisture-proof and water-resistant gypsum board comprises the following steps: S1, uniformly mixing building gypsum, modified fluorite gypsum, deionized water, a polyester adhesive, a composite water reducing agent, blast furnace slag powder and the like to obtain a gypsum slurry; S2, paving the gypsum slurry on a first layer of cover paper, paving a second layer of cover paper on the gypsum slurry, and performing compaction, final setting, drying and solidification to obtain the indoor moisture-proof and water-resistant gypsum board. The composite water reducing agent is obtained by the reaction of ethyl vinyl ether, trichlorofluoroethylene and allyltrimethoxysilane. The polyester adhesive is obtained by the reaction of allyl alcohol, phthalic anhydride and triallyl cyanurate. The prepared gypsum board not only has good moisture-proof and water-resistant performance, but also has good mechanical properties, thereby prolonging the service life and ensuring the quality of the gypsum board to a certain extent.

The present disclosure relates to a plaster board comprising a first panel having an outer surface, an inner surface, a first edge, a second edge, and a center between the first edge and the second edge, a layer of hardened plaster material coupled to the inner surface of the first panel, wherein the hardened plaster material has a first density proximate the first edge of the first panel and a second density proximate the center of the first panel, the first density being greater than the second density, and a second panel having an outer surface, an inner surface, a first edge, a second edge, and a center between the first edge and the second edge, wherein the second panel is coupled to the hardened plaster material opposite the first panel.

The invention provides a grouting device and a gypsum board production system. The grouting device comprises a first grouting pipe and a second grouting pipe, wherein the first grouting pipe is connected to the slurry mixing machine and is suitable for applying first slurry; the grouting device comprises a first grouting pipe and a second grouting pipe, the second grouting pipe is arranged on the downstream portion of the first grouting pipe and connected to a slurry mixing machine so as to be suitable for applying second slurry to the first slurry, and the grouting device is configured to reduce or eliminate the scouring effect between the second slurry and the first slurry. According to the grouting device disclosed by the invention, on the basis of the principle of forming a shoe washing phenomenon, the scouring effect on the first slurry in the second slurry injection process is effectively reduced or eliminated by improving the structure of the grouting device, and a solution which is easy to implement, reliable and effective is provided under the condition that raw materials are not changed; and the performance quality and the appearance quality of a gypsum board product are ensured.

The invention belongs to the field of ultra-high performance concrete temperature control, and particularly relates to an ultra-high performance concrete member based on gradient phase change material layering and a preparation method of the ultra-high performance concrete member. The ultra-high performance concrete member comprises an ultra-high performance concrete base body and at least three functional layers. The functional layers are sequentially arranged in the ultra-high performance concrete base body in the thickness direction of the ultra-high performance concrete member. Each functional layer contains a microencapsulated phase change material, and the phase change temperatures of the microencapsulated phase change materials in each functional layer are sequentially reduced in the thickness direction of the ultra-high performance concrete member. The at least three functional layers with different phase transition temperatures are arranged in the thickness direction in a gradient manner, so that accurate matching with the spatial and temporal distribution of the hydration heat of the ultra-high performance concrete is realized. The internal and external temperature difference of the component can be remarkably reduced, the occurrence time of a temperature peak value is delayed, early-stage temperature cracks are effectively inhibited, and the integrality and durability of the component are improved.

A liquid material supplying apparatus for a gypsum plate is provided for supplying a liquid material to a covering material of a gypsum plate. The liquid material supplying apparatus includes a tank configured to store the liquid material; a liquid material supply pipe that is connected to the tank and is configured to supply the liquid material; a displacement device configured to displace a position of the liquid material supply pipe; an edge detection device configured to detect a position of an edge of the covering material in a width direction; and a controller configured to displace, by the displacement device, the position of the liquid material supply pipe according to the position of the edge of the covering material in the width direction detected by the edge detection device.

The utility model discloses a guniting device for a PCCP (prestressed concrete cylinder pipe) production process, and relates to the technical field of guniting devices for the PCCP production process. The nozzle comprises a nozzle body, a nozzle groove penetrating through the bottom is formed in an inner cavity of the nozzle body, and a material conveying hose is connected to the top of the nozzle body. The fixing bolt penetrates through the bearing and the inner cavity of the first hole groove front and back to enable the nozzle to be connected with the fixing frame, the telescopic base is installed in the inner cavity of the telescopic base fixing block, the fastening nut is rotated to be aligned with the hole groove of the fixing base to enable the telescopic base to be fixed, and the nut is installed in the inner cavity of the connecting block and the inner cavity of the second hole groove. Then the nut is installed at the front end of the nut, the telescopic rod stretches out and draws back to adjust the angle of the nozzle, the nozzle 1 can achieve adjustment of various angles so as to meet different construction requirements, meanwhile, due to the design of the double nozzles, a larger coverage area can be formed, spraying dead angles are reduced, it is ensured that the slope protection face is evenly stressed, and spraying compactness is improved.

A smoother includes a conveying device for a molded body; a pair of arms that are respectively disposed to face both widthwise ends of the conveying device, and in which longitudinal ends of the arms are swingable in upward and downward directions with respect to a conveying surface of the conveying device; a smoother plate fixed to a pair of facing ends of the longitudinal ends of the pair of arms; weights that are respectively attached to the pair of arms and are movable along a longitudinal direction of the arms; a weight position changing device configured to change positions of the weights on the arms; and a first control device configured to control the positions of the weights on the arms via the weight position changing device.

According to the present invention, there is provided an apparatus (100) for manufacturing a cementitious slurry comprising foam, the apparatus comprising: a mixing chamber (101) for mixing a cementitious material and water to form a cementitious slurry, a channel (103) fluidly connected to the mixing chamber (101) at a first end (111), the channel (103) for receiving a cementitious slurry from the mixing chamber (101). In the apparatus (100), the channel (103) extends from the first end (111) and terminates at at least one second end (112). The channel (103) comprises a first foam inlet (106) for introducing foam into the channel (103). The channel (103) further comprises a second foam inlet for introducing foam into the channel (103). The first foam inlet (106) and the second foam inlet are offset along the length of the channel (103). A method using the apparatus (100) is also described.

The invention relates to a method for producing a laminate, characterized in that (i) a wooden element is provided, (ii) the upper surface of the wooden element is coated with an adhesive applied in liquid form, comprising at least one polymer that is liquid at room temperature and contains silane groups, at least one liquid epoxy resin, and at least one amine hardener, (iii) the applied adhesive is covered with a layer of a liquid cementitious composition while still wet, and (iv) the liquid cementitious composition and the adhesive are each cured. This method allows a highly durable bonding of wooden and cementitious elements in a wet-on-wet manner that is easy to implement. The laminate resulting from this method is relatively light, stable, robust, and particularly suitable as a sustainable component in above-ground structures, in particular as a ceiling element.

The invention relates to a conveyor line for the continuous production of drywall boards as well as a slurry distributing device which is used in this conveyor line. The distributing device is used for the uniform and low-speed flow distribution of slurries.

The invention discloses an environment-friendly, renewable, light, high-strength and impact-resistant recombinant bamboo-foamed aluminum sandwich UHPC (Ultra High Performance Concrete) composite guardrail, and belongs to the technical field of traffic guardrails. The composite guardrail comprises a guardrail main body, a fixed base and a connecting part, the guardrail body is of a layered composite structure and sequentially comprises an outer recombined bamboo board, a middle UHPC layer and a foamed aluminum sandwich layer from outside to inside, and all the layers are compounded into a whole through interface bonding layers. The guardrail main body is detachably connected with the fixed base through the connecting part. Through reasonable material compounding and structural design, the advantages of light weight and environment friendliness of the recombined bamboo, high strength and toughness of the UHPC and excellent energy absorption performance of the foamed aluminum are fully played, so that the composite guardrail has the characteristics of light weight, high strength, excellent impact resistance, good weather resistance, environment friendliness and reproducibility; meanwhile, the guardrail main body is detachably connected with the fixed base, so that the construction is convenient and fast, and the maintenance cost is low. The method is suitable for various traffic scenes such as urban roads, expressways and scenic spot roads, and has a wide application prospect.

A production apparatus of an electrode active material layer, comprising: a support unit; a feeding unit that feeds prescribed granulated particles on or above the support unit; a first conveying unit; a squeegee unit; a first stock guide; a second stock guide; a first position measurement unit; a second position measurement unit; a rolling unit; a first gap amount adjustment unit; a second gap amount adjustment unit; and a control unit, wherein: the first position measurement unit is capable of measuring a distance D1; the second position measurement unit is capable of measuring a distance D2; the first gap amount adjustment unit adjusting a gap amount G1; and the second gap amount adjustment unit adjusting a gap amount G2. The control unit causes the first gap amount adjustment unit to adjust the gap amount G1 based on a difference between the gap amount G1 obtained based on the distance D1 and a gap amount threshold T1 and causes the second gap amount adjustment unit to adjust the gap amount G2 based on a difference between the gap amount G2 obtained based on the distance D2 and a gap amount threshold T2.

The utility model discloses construction equipment for preheater low-temperature castable, which belongs to the technical field of unmanned rotorplanes and comprises a stirring bin, a fixing support is fixedly connected to the bottom of the stirring bin, a fixing plate is fixedly connected to the lower end of the fixing support, and moving wheels are rotatably connected to the lower portion of the fixing plate. A feeding groove is formed in the bottom of the stirring bin, a feeder is rotationally connected to the interior of the feeding groove, a feeding pipe is fixedly connected to the left end of the feeding groove, a stirrer is installed on the top of the stirring bin, and a feeding opening is formed in one side of the top of the stirring bin; compared with a traditional mode that stirred pouring materials are manually transferred to the to-be-poured face, the pouring material construction is more convenient and faster, the pouring efficiency is improved, and the labor cost of pouring construction is reduced.

The application discloses a gypsum board foaming compound control system, which comprises a foaming agent feeder, a visual cutting machine, a visual detector, an ultrasonic detector and a controller arranged in a gypsum board production line. The visual cutting machine is used for cutting a wet board. The visual detector measures the size of the cell of the cross section of the wet board through an observation window arranged on the execution part of the visual cutting machine. The ultrasonic detector emits ultrasonic waves to the slurry and derives the size and growth speed of the bubbles in the slurry through the reflected wave signals. During the production process, the controller adjusts the process of deriving the cell size by the ultrasonic detector according to the size of the cell measured by the visual detector, and adjusts the feeding ratio of the foaming agent feeder according to the size of the cell derived by the ultrasonic detector. The foaming agent used by the slurry is produced in real time by the foaming agent feeder according to the set feeding ratio, so that the feeding ratio of the foaming agent can be timely and accurately changed according to the size of the cell in the gypsum board.

The invention discloses a spraying and centrifuging device and process for a cement mortar lining of a nodular cast iron pipe, and belongs to the field of spraying of a ball pipeline lining. The device comprises a material mixing mechanism, a material conveying mechanism, a spraying mechanism and a centrifuging mechanism; the spraying mechanism is driven by high-pressure air to rotate, and cement mortar is evenly sprayed to the inner wall of the nodular cast iron pipe. The centrifugal mechanism is used for driving the nodular cast iron pipe to rotate and applying a vibration effect; the cement mortar comprises the following components in parts by mass: 100 parts of cement, 30-44 parts of water and 150-200 parts of sand; the nodular cast iron pipe keeps rotating at a low speed, mortar raw materials are evenly mixed through the mixing mechanism and conveyed to the spraying mechanism through the conveying mechanism to be sprayed out, the conveying mechanism moves at a constant speed, mortar is evenly sprayed to the inner wall of the pipeline, and the pipeline rotates at a high speed to further improve lining compactness and surface flatness. The thickness uniformity of the cement mortar lining is effectively improved, the high-speed centrifugation time is shortened, and the lining layering problem is solved.

According to the present invention, there is provided an apparatus (100) for producing a foamed cementitious slurry, the apparatus comprising: a mixing chamber (101) for mixing a cementitious material with water to form a cementitious slurry; and a channel (103) fluidly connected to the mixing chamber (101) at a first end (111) for receiving the cementitious slurry from the mixing chamber (101). In the apparatus, the channel (103) extends from the first end (111) and terminates at least one second end (112). The channel (103) comprises a first foam inlet (106) for introducing foam into the channel (103), and the apparatus (100) is configured, during use, to introduce foam through the first foam inlet (106) at a velocity no greater than 5.4 times the velocity of the cementitious slurry in the channel (103). Methods of using the apparatus are also described.

The invention discloses a nodular cast iron pipe cement lining automatic adjusting system, and belongs to the field of nodular cast iron pipe manufacturing, the nodular cast iron pipe cement lining automatic adjusting system comprises a supporting mechanism and a PLC control cabinet installed on the surface of the supporting mechanism, an adjusting mechanism is installed on the surface of the supporting mechanism, and a feeding mechanism is installed on the surface of the adjusting mechanism; the adjusting mechanism comprises nodular cast iron pipe bodies rotationally connected to the surface of the supporting mechanism in a path array mode, and a feeding pipe is inserted into one nodular cast iron pipe body. Through cooperative use of the devices, the cement flow is monitored in real time based on the industrial high-definition AI recognition camera, the cement output and the rotating speed of the moving wheels are controlled through the PLC control cabinet, and the moving speed of the storage box is adjusted, so that the cement output is matched with the moving speed of the storage box; the amount of cement flowing to the inner wall of the nodular cast iron pipe body from each position of the feeding pipe is more uniform, and meanwhile the real-time scene of the interior of the nodular cast iron pipe body is displayed on a client side.

The utility model relates to a foam cement filling device for anti-static floor production, which comprises a working table, a conveyor and a scraping component arranged on the working table, the conveying method of the conveyor is belt conveying, the conveyor is fixedly arranged on the table top of the working table, the scraping component comprises a fixed plate, a rotating plate and a scraping plate, and the rotating plate is fixedly arranged on the working table. The fixed plate is fixedly installed above the workbench, the rotating plate is rotatably installed on the fixed plate, the scraping plate is movably installed on one side of the rotating plate, the scraping plate is an L-shaped bent plate, the edge of the bent part of the scraping plate is flush with the edge of the top face of the rotating plate, a discharging plate is movably arranged below the scraping plate, and the discharging plate is arranged below the scraping plate. The discharging plate is in the shape of an L-shaped bent plate, the rotating plate can scrape off cement overflowing out of a pouring hole while transporting a steel core, timely cleaning is achieved, the production efficiency is improved, the scraper is matched with the rotating plate to clean the cement on the rotating plate, and follow-up use of the rotating plate is not affected.

The invention relates to the technical field of drainage ditch construction, in particular to a high-strength hidden type prefabricated permeable cover plate structure and a preparation method thereof. The permeable cover plate comprises a structural layer, a drainage hole is vertically formed in the structural layer in a penetrating mode, a hoisting embedded part is vertically embedded in the structural layer, a drainage surface layer made of permeable materials is poured on the top of the structural layer, the bottom of the drainage surface layer is formed in the drainage hole in a pouring mode, and the hoisting embedded part is embedded in the drainage surface layer. The high-strength hidden type prefabricated permeable cover plate structure has the advantages that the high-strength hidden type prefabricated permeable cover plate structure is high in strength, has a drainage function and is attractive, and the aim of less maintenance or even no maintenance can be fulfilled while daily use is met.

The application provides an inflatable rubber tire, a skeleton and a plug device for pipe coating. The inflatable rubber tire comprises a rubber tire body, an inflation nozzle, a pull ring belt and at least one air hole. The skeleton comprises an L-shaped component, a U-shaped component and a fender. The plug device comprises the inflatable rubber tire and the skeleton. When the skeleton and the inflatable rubber tire are used in combination for pipe coating, the coating on the inner wall of the end face of the pipe can be prevented from being stuck off.

A gypsum plate manufacturing device configured to manufacture a gypsum plate in which at least an upper surface and a lower surface of a gypsum core are covered by a covering member includes a conveying device configured to convey the covering member; a mixer configured to prepare a gypsum slurry containing calcined gypsum and water, and supply the gypsum slurry onto the covering member; a pressing device including a pressing member configured to press the covering member, being conveyed by the conveying device, against the conveying device, and a driving device configured to change a distance between the pressing member and the covering member; and a control device configured to control the driving device to change the distance between the pressing member and the covering member, and switch between a pressing state, in which the pressing member presses the covering member against the conveying device, and a separating state, in which the pressing member is separated from the covering member. The control device sets the pressing state in response to the conveying device starting conveyance of the covering member, and subsequently switches from the pressing state to the separating state.