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40 results about "Bridge material" patented technology
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The traditional building materials for bridges are stones, timber and steel, and more recently reinforced and pre-stressed concrete. For special elements aluminum and its alloys and some types of plastics are used.
Composite plugging agent, plugging composition and plugging cement paste for shale gas formation cracks
The invention relates to the technical field of drilling compositions, in particular to a composite plugging agent, a plugging composition and plugging cement paste for shale gas formation cracks. The composite plugging agent for shale gas stratum cracks is composed of a bridging material, a filling material and an end-capping material, the mass ratio of the bridging material to the filling material to the end-capping material is (1.2-1.4): 0.5: (0.1-0.3), the bridging material is organic fibers with the length of 3-5 mm, the filling material is composed of inert particles with the particle size of 35-280 [mu] m and micro-silicon with the particle size of 0.15-1 [mu] m, and the end-capping material is a mixture of silicon oxide and silicon oxide. The end-capping material is composed of organic fibers with the length of 8-9 mm and walnut shells with the particle size of 3-5 mm. Through compounding of different types of bridging materials, filling materials and end sealing materials and grading of fibers with different lengths and plugging particles with different particle sizes, the plugging agent can be matched with cement paste in complex cracks and large cracks (1-4 mm) of a stratum to form a stable and compact plugging layer, the compressive strength is high, effective retention is achieved, and the effect of plugging a complex leakage layer is achieved.
Owner:SINOPEC OILFIELD SERVICE CORPORATION +1
Vacuum suction nozzle for rectifier bridge material sheet
ActiveCN222462875UImprove stabilityImprove adsorption capacitySemiconductor/solid-state device manufacturingBridge materialStructural engineering
The utility model relates to a vacuum suction nozzle for a rectifier bridge material sheet, which comprises a fixing plate, a vacuum suction nozzle main body is arranged on the fixing plate, a vacuum suction pipe connector is arranged on one side of the vacuum suction nozzle main body, a vacuum suction nozzle extending downwards is arranged at the bottom of the vacuum suction nozzle main body, the vacuum suction nozzle is communicated with the vacuum suction pipe connector, and the vacuum suction pipe connector is communicated with the vacuum suction nozzle main body. A suction nozzle opening of the vacuum suction nozzle gradually expands outwards in a trumpet shape. According to the vacuum suction nozzle for the rectifier bridge material sheet, the suction stability of the material sheet is improved by changing the structure of the suction nozzle, and the material taking quantity can be controlled by controlling the opening and closing of the suction nozzle, so that the use of equipment is more flexible.
Owner:JINYUN LANPU SEMICON CO LTD
Coiling device for replacing steel wire rope of skew bridge skip car of blast furnace
A coiling device for replacing a steel wire rope of a skew bridge skip car of a blast furnace comprises a steel wire rope reel, a positioning frame, a rotating shaft, a bearing, a bearing seat and a brake assembly, a positioning flange is fixedly welded to each of the two sides of the steel wire rope reel, the rotating shaft penetrates through the steel wire rope reel and the two positioning flanges, and the bearing and the bearing seat are installed at the two ends of the rotating shaft respectively. The two bearing seats are correspondingly fixed to the positioning frame, the side face, located on each positioning flange, of the rotating shaft is provided with one connecting flange in a welded mode, each connecting flange is fixedly connected with the corresponding positioning flange, and the brake assembly is installed on one side of the rotating shaft. The steel wire rope reel and the rotating shaft are fixedly connected through the positioning flange and the connecting flange, the installation time is short, the whole process does not exceed half an hour, and compared with an existing mode that a shaft sleeve is connected with the rotating shaft, a large amount of heating and cooling time is saved, and the replacement efficiency of the steel wire rope and the field production efficiency are improved.
Owner:FUJIAN QUANZHOU MINGUANG IRON & STEEL CO LTD
High-strength composite bridge deck material and preparation method thereof
The invention discloses a high-strength composite bridge deck material and a preparation method thereof, and belongs to the technical field of bridge materials. The cable comprises a filling layer; the filling layer is composed of a core material and a fiber fabric laid on the outer surface of the core material, and modified epoxy resin is manually pasted on the fiber fabric; cFRP plates are arranged on the upper portion and the lower portion of the filling layer, and CFRP reinforcing rib plates are arranged on the periphery of the filling layer; a fiber fabric of hand lay-up modified epoxy resin is also laid on the CFRP plate; through the structure with gradient mechanical properties, external loads are smoothly transmitted to the core material from the high-strength panel, and sudden change of interface stress is avoided; the bridge deck prepared by the method keeps light weight and high strength, the integrity and the structural durability of the bridge deck are remarkably enhanced, and the comprehensive requirements of modern bridge engineering on long service life, high bearing capacity and low maintenance can be met.
Owner:长三角碳纤维及复合材料技术创新中心 +2
A welding auxiliary positioning device for processing steel structure bridge materials
The present invention discloses a welding auxiliary positioning device for the processing of steel structure bridge materials. The present invention relates to the technical field of welding auxiliary positioning, and includes a tank body. A rapid cooling prevention mechanism is fixedly connected to the middle position of the surface of the tank body. An accumulation prevention mechanism is fixedly connected to a position close to the edge of the inner side surface of the tank body. The rapid cooling prevention mechanism includes an inner tank wall. A connecting wall is fixedly connected to the bottom of the inner side surface of the inner tank wall. A docking wall is fixedly connected to the top of the connecting wall. A mesh body is fixedly connected to the top of the inner side surface of the docking wall. The accumulation prevention mechanism includes a mechanism wall. By the combined use of mechanisms such as the rapid cooling prevention mechanism, the regulation component, and the accumulation prevention mechanism, the welding auxiliary positioning device for the processing of steel structure bridge materials solves the problems that during the tack welding of circumferential seams, stress accumulation deformation of the pipe body is likely to occur, and the rapid cooling of the weld points results in a high quenching sensitivity of the workpiece.
Owner:CHINA POWER CONSTRUCTION NUCLEAR POWER (LUFENG) EQUIPMENT CO LTD
Reactive epoxy fully-recycled asphalt mixture and use method thereof
The invention belongs to the field of road and bridge materials, and particularly relates to a reactive epoxy fully-recycled asphalt mixture and a use method thereof. The mixture is composed of fully-regenerated epoxy resin, a fully-regenerated curing agent, an RAP coarse material, an RAP fine material and reactive asphalt, and the fully-regenerated epoxy resin is prepared from, by weight, 40-50 parts of high-molecular-weight epoxy resin, 5-15 parts of low-molecular-weight epoxy compound, 5-10 parts of multifunctional biomass blend oil and 0.1-0.3 part of accelerant; the fully-regenerated curing agent comprises 1-3 parts of a medium-temperature curing agent, 5-10 parts of a normal-temperature curing agent and 0.1-0.3 part of dopamine. According to the invention, through chemical cross-linking reaction among the active mortar, the active aggregate and the reactive asphalt, the compatibility is greatly improved. And finally, the epoxy regenerated asphalt with a stable phase structure is formed, firm bonding between the epoxy regenerated asphalt and the RAP material is realized, the amount of newly added asphalt is greatly reduced, the RAP material is fully utilized, and full regeneration is realized.
Owner:JIANGSU CHANGLU ENERGY TECH DEV CO LTD +1
Road and bridge material simulation detection equipment
The invention relates to the technical field of bridge material detection, in particular to road bridge material simulation detection equipment which is characterized in that a mounting frame is arranged on the surface of a supporting plate, an electric push rod is arranged on the side face of the mounting frame, a sealing pipe is arranged at the bottom of a water containing measuring cylinder, sealing rubber is arranged at the bottom of the sealing pipe, and a fixing ring is arranged on the surface of the sealing pipe; limiting springs are arranged on the surfaces of the fixing rings, sealing rings are arranged at one ends of the limiting springs, and auxiliary rubber is arranged on the surfaces of the sealing rings. The device has the beneficial effects that firstly, the electric push rod can be started to enable the water containing measuring cylinder to move downwards, so that sealing rubber arranged at the bottom of the sealing pipe can be in close contact with the road surface, and auxiliary rubber arranged at the bottom of the sealing ring is used for further improving the contact sealing performance of the bottom of the water containing measuring cylinder and the ground; and the limiting spring arranged on the surface of the fixing ring is matched with the downward thrust of the auxiliary rubber to improve the sealing performance of the auxiliary rubber, so that the water level in the water containing measuring cylinder can be conveniently utilized to judge the water permeability of the surface of the road bridge.
Owner:SICHUAN HUAXIN ENGINEERING TESTING CO LTD
Mobile ultra high performance concrete sprayer
This invention discloses a mobile ultra-high performance concrete spraying machine, belonging to the technical field of bridge material construction equipment. It includes a vehicle body assembly and a spraying assembly installed at the front of the vehicle body assembly. The spraying assembly includes a frame body, on the upper surface of which a vertically arranged material leveling mechanism and a tilting mechanism are installed. Above the material leveling mechanism is a stirring mechanism and a material storage mechanism, wherein one end of the stirring mechanism is movably connected to the tilting mechanism, allowing the stirring mechanism and the material storage mechanism to tilt towards their movably connected end to open the material leveling mechanism. A motor is installed directly below the material leveling mechanism, with its shaft passing through the material leveling mechanism and drivingly connected to the stirring mechanism. A spraying pipe is connected to the front of the material leveling mechanism. The modular layout of the material leveling mechanism and the stirring mechanism, along with the linkage design of the stirring mechanism and the tilting mechanism, allows for quick opening of the material leveling mechanism for cleaning or maintenance, preventing the mixing of dried UHPC with new material and ensuring stable performance of the sprayed layer.
Owner:SHANDONG TRANSPORTATION INST +1
Bracket for bridge construction
The utility model discloses a bracket for bridge construction, which comprises a bottom plate, a mounting plate arranged above the bottom plate, a lifting device arranged between the mounting plate and the bottom plate, a mounting device arranged on the mounting plate, a clamping device arranged above the mounting device, and an auxiliary clamping device arranged on the clamping device. When the device works, firstly, the height of the bracket is adjusted through work of a lifting oil cylinder, then the mounting fixing plate is fixedly arranged on the mounting plate through threaded connection of the mounting bolts, then the bracket is conveniently and rapidly assembled and disassembled, and then the bracket can be conveniently and rapidly assembled and disassembled by pulling an adjusting pull plate. According to the bracket, a clamping adjusting rod is rotated to move, then a clamping block is driven to clamp and fix a bridge material, then a clamping rotary knob is screwed to drive a clamping threaded rod to rotate, then an auxiliary clamping plate is driven to conduct auxiliary clamping and fixing on a profile, and finally the height of the bracket is adjusted.
Owner:CHINA CONSTR EIGHTH ENG BUREAU TECH CONSTR CO LTD
Bridge material hardness detection device
The invention discloses a bridge material hardness detection device, and relates to the technical field of bridge material detection.The device comprises a detection table with a portal frame, an air cylinder is installed on the portal frame, the output end of the air cylinder is connected with a hardness detector, a movable base plate is arranged on the detection table, and a moving mechanism is installed between the movable base plate and the detection table; the moving mechanism is used for driving the movable base plate to move in the length direction and the width direction of the detection table, supporting pieces are symmetrically installed on the movable base plate, and the opposite sides of the two supporting pieces are each provided with a rotatable clamping piece in a communicating mode. Multidirectional detection of materials is achieved through cooperation of the rotatable clamping piece and the pneumatic clamping mechanism, repeated clamping is not needed, the negative pressure jacking mechanism is combined to effectively counteract detection pressure to prevent deformation, automatic positioning detection is achieved through cooperation of the high-precision moving mechanism, the detection efficiency and data accuracy are remarkably improved, and the detection precision is improved. The problems that a traditional device is tedious in operation, low in efficiency and large in measurement error are comprehensively solved.
Owner:ANHUI EXPRESSWAY TESTING & TESTING RES CENT CO LTD
Feeder capable of preventing bridging and extrusion
The utility model discloses a feeder capable of preventing bridging and extrusion. The feeder comprises a feeding bin bottom and a stirring feeding disc. The feeding bin bottom comprises a bottom plate, an inner shell and an outer shell; an annular discharging channel is formed between the inner shell and the outer shell; a discharge hole is formed in the bottom plate opposite to the discharge channel; the inner shell comprises an upper shell and a material thickness adjusting ring; the material thickness adjusting ring is hermetically arranged at the bottom of the upper shell, and the bottom surface height can be adjusted; the stirring feeding disc comprises a rotary connecting ring, a stirring shaft, stirring blades and a plurality of partition plates; the multiple partition plates are evenly distributed at the bottom of the inner wall face of the rotary connecting ring in the circumferential direction, each partition plate is distributed in the radial direction of the rotary connecting ring, and the radial length of each partition plate is not smaller than the radial thickness of the discharging channel. By means of the bridge breaking device, bridge breaking of easily-bridged materials can be achieved, the easily-bridged materials are prevented from being extruded and broken in the feeding process, and the wide feeding speed range can be taken into account.
Owner:SHANGHAI NEXTECH CO LTD
Bridge impact testing machine
ActiveCN224286331UMaterial strength using repeated/pulsating forcesShock testingBridge materialArchitectural engineering
This utility model relates to a bridge impact testing machine in the field of testing technology. Addressing the problem that existing equipment cannot simulate diverse and complex impact conditions, this testing machine includes a frame, a guide frame, support frame I, and support frame II. Impact mechanism I controls the raising and lowering of impactor I by electromagnet I engaging with attraction seat I; impactor I has a V-shaped bottom. Impact mechanism II controls the raising and lowering of impactor II by electromagnet II engaging with attraction seat II; impactor II is square and one end is covered with a steel angle iron. Adjustable spacing support blocks are installed below the frame to accommodate different sample sizes. This design utilizes a dual-impact mechanism to achieve multiple impact modes, such as free-fall impact and directional impact, simulating complex working conditions encountered by actual bridges. Flexible settings for height and number of impacts improve the comprehensiveness and accuracy of test data, making it suitable for evaluating the impact resistance performance of bridge materials.
Owner:SHANGHAI LECE ELECTRONIC TECH CO LTD
Fixture and renovation method of fixture
To provide a fixture and a renovation method of a fixture that improve insulation performance.SOLUTION: The fixture has a new frame 31 that is attached to a metal existing frame 21 fixed to a building frame 11. The new upper frame 4 includes: a metal outdoor member 42 that is placed outdoors; a metal indoor member 41 that is placed indoors; and a resin bridge material 43 placed between the outdoor member 42 and the indoor member 41 to connect the outdoor member 42 and the indoor member 41. The bridge material 43 is placed on the indoor side relative to the outdoor-side end of the existing frame 21.SELECTED DRAWING: Figure 5
Owner:LIXIL CORP
Frame profiles, frames, and methods for repairing frames
To prevent situations where watertightness is compromised, while also improving thermal insulation. [Solution] The lower frame 12 has an outdoor metal molded part 12A and an indoor metal molded part 12B made of metal, and a bridge material 12C made of thermal insulation material, with the outdoor metal molded part 12A and the indoor metal molded part 12B connected via the bridge material 12C, and a connecting sheet 20 made of thermal insulation material is bonded to the portion extending from the adhesive flat surface 12c provided on the outdoor metal molded part 12A, the inner circumferential surface 12d of the bridge material 12C, and the adhesive flat surface 12c provided on the indoor metal molded part 12B.
Owner:YKK AP INC
Bio-based epoxy asphalt self-repairing microcapsule and use method thereof
The invention relates to the technical field of road and bridge materials, in particular to a bio-based epoxy asphalt self-repairing microcapsule and a using method thereof, and the self-repairing microcapsule comprises a bio-based core material and a reaction type wall material; the bio-based core material comprises the following components in parts by weight: 8-10 parts of a repair enzyme compound; 3-5 parts of an auxiliary enzyme compound; 20-25 parts of a regeneration substrate; 10-15 parts of a protective agent; the reactive wall material comprises 20-25 parts of a bio-based main wall material; 1-5 parts of a stress inducer; 0.5 to 1 part of a surface modifier; 3-5 parts of a cross-linking agent; according to the method, cross-scale synergistic repair of nano-scale fracture molecular chains and micron-scale cracks of aged epoxy asphalt is realized through a bio-enzyme catalytic regeneration system, self-regeneration circulation of auxiliary enzymes is realized through multiple paths, repeated repair is realized, in addition, an environmental response and mechanical stress double-trigger mechanism is constructed, it is ensured that microcapsules are not damaged in the construction stage, and the service life of the microcapsules is prolonged. The release efficiency is improved in the service stage, and the core material repairing effect is improved.
Owner:ZHONGLU JIAOKE TECHNOLOGY CO LTD
A bridge crack dynamic monitoring system and method based on diffusion probability model
ActiveCN119939165BAnalysing solids using sonic/ultrasonic/infrasonic wavesImage analysisContrast levelBridge material
The present invention relates to the technical field of bridge material analysis. Disclosed are a system and method for dynamic monitoring of bridge cracks based on a diffusion probability model. The system and method comprise constructing a reflection amplitude matrix and a crack depth matrix based on ultrasonic data, obtaining contrast values, homogeneity values, and correlation values in a bridge crack image based on a grayscale symbiosis algorithm, and constructing a texture feature matrix based on the contrast values, homogeneity values, and correlation values. The system constructs the reflection amplitude matrix, the crack depth matrix, and the texture feature matrix, respectively, to comprehensively characterize the dynamic change characteristics of bridge cracks, thereby resolving the issues of insufficient accuracy and reliability in crack feature extraction in the prior art. By screening a feature matrix sequence based on W comprehensive feature matrices and inputting the matrix into a pre-trained diffusion probability model, the system and method can capture the crack propagation rate in real time and monitor the dynamic changes of the cracks.
Owner:JSTI GRP CO LTD +1
An elastic concrete for expansion joints and its preparation method
The application relates to the technical field of road and bridge materials, and discloses elastic concrete for expansion joints and a preparation method thereof, which comprises the following components: A component, a modified titanium dioxide / isocyanate end-capped amino polyether prepolymer compound, which is made of isocyanate modified titanium dioxide and isocyanate end-capped amino prepolymer; B component, an amino-terminated polyether and an auxiliary additive; and C component, mixed stone. The mechanical properties and toughness of the elastic concrete are improved, and the material is endowed with good durability and ultraviolet resistance.
Owner:CHONGQINGSHI ZHIXIANG PAVING TECH ENG CO LTD
A pressure machine for road and bridge testing and its usage method
PendingCN122130466AMaterial strength using tensile/compressive forcesBridge materialArchitectural engineering
This invention relates to the field of strength testing of new concrete materials, and particularly to a pressure testing machine for road and bridge construction and its usage method. The machine includes a base plate, a load-bearing platform, and a mounting box. The mounting box is placed on the load-bearing platform, and the load-bearing platform is fixedly installed on the base plate. The mounting box contains a pressure testing component and a test block clamping component. The test block clamping component holds the test block directly below the pressure testing component. The test block clamping component includes multiple clamping frames and clamping platforms, with the clamping platforms located at the bottom of the clamping frames. This invention achieves basic positioning by using the positioning blocks of the clamping platforms to conform to the edges of the test block. Combined with the lateral limiting of the clamping plate and the top abutment limiting of the drive frame, a three-dimensional positioning protection is formed for the test block. This solves the problem of test block offset and shaking caused by the single clamping method of traditional equipment, ensuring that the pressure head's force application point is aligned with the center of the test block, significantly reducing test data errors, and meeting the high-precision testing requirements of new road and bridge material test blocks.
Owner:GUANGZHOU TONGHUI ENG CO LTD
Lifting device for constructional engineering
The utility model discloses a hoisting device for constructional engineering, which belongs to the technical field of hoisting devices and comprises two bridge frames, the upper ends of the two bridge frames are jointly and movably connected with a hoisting mechanism, and the lower portion of the hoisting mechanism is connected with a material body in a magnetic attraction mode. The device can be fixed to two steel beam frames, the device can be adjusted according to the distance between the two steel beam frames, the stability of the device during use is guaranteed, bridge materials can be positioned through cooperation of the lifting assembly and the adjusting piece, the position of the fixed materials can be adjusted according to the sizes of the materials, and the device is convenient to use. And materials can be better fixed, the function that bridge frames with different widths can be conveniently used can be achieved, and the practicability of the device is improved.
Owner:SHANDONG DEJIAN GRP CO LTD
Hoisting device with protective structure
The utility model discloses a hoisting device with a protective structure, which comprises a hoisting portal frame, a crane connected to the inner side of the hoisting portal frame, a hoisting chain arranged on the lower side of the crane, a connecting lifting hook connected to the lower end of the hoisting chain, a moving machine connected to the lower side of the hoisting portal frame, and moving wheels arranged below the moving machine. A placing frame is arranged on the inner side of the hoisting portal frame. The device has the advantages that bridge materials are not prone to shaking and other unstable conditions in the moving process when the bridge materials are moved, in the actual using process, the two limiting plates can be moved by rotating the two-way lead screw, the materials can be limited after the two limiting plates move to a certain distance, and the device is convenient to use and high in practicability. And the oil cylinder can further clamp the materials through the clamping plate connected with the output end of the oil cylinder, so that the stability of the materials when the materials are moved by the placing frame is improved, and the possibility that the bridge materials shake is reduced.
Owner:SICHUAN JIUMA EXPRESSWAY CO LTD
Screw conveyer with scattering function
The utility model discloses a spiral conveyor with a scattering function. The spiral conveyor comprises a spiral shell, a scattering shaft, a spiral shaft, a spiral shaft chain wheel and chain assembly, a scattering shaft chain wheel and chain assembly, a spiral shaft power assembly, a scattering shaft power assembly and an air hammer. According to the utility model, the structural design is reasonable, the spiral feed port is designed into the open rectangular feed port, the blanking area is enlarged, the blanking is facilitated, the scattering shaft is additionally arranged in the fluidization cavity, and the scattering shaft power assembly drives the scattering shaft to rotate and is matched with the vibration of the air hammer on the outer wall of the cavity body, so that bridging materials are fully fluidized and fall into the conveying cavity; the spiral shaft is driven by the spiral shaft power assembly to rotate, so that materials are pushed by the blades to move forwards along the conveying cavity, and the problem that materials with poor flowability bridge above the spiral feeding port and cannot be discharged is solved.
Owner:CHANGZHOU AODELI INTELLIGENT EQUIP CO LTD
Fixture
To provide a fixture capable of preventing outdoor components from sagging.SOLUTION: The fixture has a new frame 31 that is attached to a metal existing frame 21 fixed to a building frame 11. The new frame 31 includes: a metal outdoor member 42 placed outdoors; a metal indoor member 41 placed indoors; a resin bridge material 43 that is placed between the outdoor member 42 and the indoor member 41 connecting the outdoor member 42 and the indoor member 41; and an outdoor fixing member 45 that fixes the outdoor member 42 to the existing frame 21.SELECTED DRAWING: Figure 5
Owner:LIXIL CORP
Gap bridge material rack with anti-falling mechanism
The utility model relates to the technical field of material racks, in particular to a gap bridge material rack with an anti-falling mechanism, which comprises a material rack main body, the material rack main body consists of a supporting bottom plate, a supporting vertical plate, a reinforcing plate and an upper layer placing plate, the supporting bottom plate is fixedly connected with the supporting vertical plate, and the supporting bottom plate and the supporting vertical plate form an L-shaped structure; the left side of the upper-layer placing plate is of an inclined structure, the right side of the upper-layer placing plate is of a horizontal structure, the two ends of the reinforcing plate are fixedly connected with the upper-layer placing plate and the supporting vertical plate respectively, and the reinforcing plate, the upper-layer placing plate and the supporting vertical plate form a triangular structure. The lower end of the upper-layer placing plate is fixedly connected with a fixing sleeve, a blocking plate is inserted in the middle of the fixing sleeve, the upper end of the left side of the blocking plate is fixedly connected with a traction protrusion, and a locking plate is arranged at the side end of the fixing sleeve.
Owner:JIANGSU JIASHI ELECTRONIC TECHNOLOGY CO LTD
Weather resistance test equipment for bridge material and multi-environment coupling aging test method
The invention relates to the technical field of bridge material testing, in particular to bridge material weather resistance testing equipment and a multi-environment coupling aging test method. The device comprises a sample setting table, and a rotary table and a driving body which are arranged above the sample setting table. According to the device, after a bridge material sample is placed on the sample arrangement table, the weathering structure continuously blows air to the bridge material sample for weathering, the illumination structure continuously irradiates the bridge material sample for illumination aging, and in the process, the driving body drives the sealing cover to continuously rotate; the wind blowing angle of the weathering structure to the bridge material sample is adjusted, the driving body drives the illumination structure to periodically swing at the same time, and the illumination angle of the illumination structure to the bridge material sample is adjusted, so that the conditions of actual wind direction change and sun illumination angle change are fitted, and the result of the multi-environment coupling aging test is more accurate.
Owner:HUAIAN ZHONGYA TESTING EQUIP CO LTD +1
A material mixing device and mixing method for road bridges
The present invention discloses a material mixing device and a mixing method for road and bridge materials in the technical field of road and bridge material processing, including a mixing drum. A fixed drum is rotatably connected inside the mixing drum. A number of equally spaced stirring rods are fixedly connected to the fixed drum. A surplus material cleaning component is arranged on the stirring rods. By adopting the surplus material cleaning component, after the concrete is stirred, the inside of the mixing equipment can be cleaned, and the surplus material attached to the inside of the mixing equipment can be scraped off. When cleaning the mixing equipment, the turntable drives the telescopic plate to rotate through the transmission plate, and at the same time drives the stirring rod to rotate. As the rotation speed of the rotating rod increases, the centrifugal force generated when the turntable rotates will slide the transmission plate along the arc-shaped groove towards the outside of the fixed drum, that is, the transmission plate pushes the telescopic plate to slide outwards. During the sliding process, the telescopic plate will contact the outer wall of the first scraping frame, and the surplus material attached to the telescopic plate is scraped off by the first scraping frame.
Owner:HENAN HIGHWAY ENG GROUP
A desktop machine-adapted light-cured ceramic crown and bridge material, method and application
The application discloses a desktop machine adaptive photocuring ceramic crown bridge material and a method and application thereof. The material comprises a ceramic composite filler, a photocuring resin matrix and a photoinitiator system. After 3D printing, the material does not need to go through a high-temperature debinding and sintering process, and only needs to go through photocuring post-processing, polishing and polishing to obtain a permanent crown bridge prosthesis for clinical use. The application also provides a preparation method of the material, and a uniform and stable slurry without sedimentation is obtained through premixing and hierarchical dispersion processes. Compared with the prior art, the material system is stable, has high forming precision and does not need to be polished; the post-processing process is greatly simplified, the preparation period is significantly shortened; the material can be directly adapted to small desktop printing equipment, without the need of industrial large-scale equipment, and the chair-side rapid repair of the material in a dental clinic is facilitated; the material has good biocompatibility, high strength, high wear resistance and X-ray blocking resistance, and can meet the clinical use requirements of the permanent crown bridge.
Owner:ZHENGZHOU LINGHONG ADDITIVE MANUFACTURING CO LTD +1
Bridge
The utility model relates to the technical field of cable laying equipment, in particular to a bridge which comprises a cavity and a partition plate, the partition plate is arranged in the cavity to divide the cavity into an upper cavity and a lower cavity, the upper cavity is used for placing a cable, an opening is formed in the top of the upper cavity, and a plurality of air holes are formed in the partition plate; and the air inlet is formed in the lower cavity and is used for discharging cooling air into the lower cavity, and the cooling air is discharged into the upper cavity through the plurality of air holes so as to cool the cable. The cavity is divided into the upper cavity and the lower cavity through the partition plate, the upper cavity is used for placing the cable, the cooling gas is discharged into the lower cavity through the gas inlet, and then the cooling gas is discharged into the upper cavity through the plurality of gas holes so as to cool the cable. The problems that in the prior art, the installation difficulty is high, the bridge material strength needs to be increased, and the bridge manufacturing cost is increased due to the fact that the bridge section size is increased are solved.
Owner:ZHAOHONG PRECISION (BEIJING) TECH CO LTD +1
Device for safely adding temporary plugging material into fracturing operation and using method thereof
PendingCN121853977AChange join pathavoid enteringFluid removalEqualizing valvesLine tubingBridge material
The invention discloses a device for safely adding a temporary plugging material into fracturing operation and a using method of the device, and belongs to the technical field of oil and gas field fracturing operation auxiliary devices. One end of the high-pressure manifold is connected to a wellhead connecting pipe; a hollow temporary storage container is arranged at the position, close to the wellhead connecting pipe, of the high-pressure manifold; a feeding box communicated with an inner cavity of the temporary storage container and a corresponding feeding switch are mounted on the temporary storage container; a blow-off pipe and a corresponding blow-off switch are arranged on the temporary storage container; the outlet side of the rear end of the temporary storage container is connected to the high-pressure manifold through a high-pressure connector. A rear-end switch is arranged on the high-voltage connector; the inlet side of the front end of the temporary storage container is detachably connected to an output pipeline of the pump truck through a low-pressure connector and a conveying pipeline. The low-voltage connector is also provided with a front-end switch; the problems that in the prior art, when a temporary plugging material is added in fracturing operation, the temporary plugging material is prone to sedimentation in a high-pressure manifold, and a pump truck is prone to pump clamping, pump burning or liquid leakage are effectively solved.
Owner:GUIZHOU WUJIANG SHALE GAS EXPLORATION CO LTD
Loggia walls and buildings
Owner:SEKISUI HOUSE KK
Bridge anti-collision guardrail stabilizing and reinforcing structure
Owner:LANZHOU JIAOTONG UNIV