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57 results about "Construction aggregate" patented technology
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Construction aggregate, or simply "aggregate", is a broad category of coarse to medium grained particulate material used in construction, including sand, gravel, crushed stone, slag, recycled concrete and geosynthetic aggregates. Aggregates are the most mined materials in the world. Aggregates are a component of composite materials such as concrete and asphalt concrete; the aggregate serves as reinforcement to add strength to the overall composite material. Due to the relatively high hydraulic conductivity value as compared to most soils, aggregates are widely used in drainage applications such as foundation and French drains, septic drain fields, retaining wall drains, and roadside edge drains. Aggregates are also used as base material under foundations, roads, and railroads. In other words, aggregates are used as a stable foundation or road/rail base with predictable, uniform properties (e.g. to help prevent differential settling under the road or building), or as a low-cost extender that binds with more expensive cement or asphalt to form concrete.
Phase-change artificial aggregate and preparation method thereof
The invention discloses a phase-change artificial aggregate and a preparation method thereof, and relates to the field of concrete. The phase-change artificial aggregate comprises an artificial aggregate core body, a resin layer coated on the surface of the artificial aggregate core body and a cement layer coated on the surface of the resin layer, and the artificial aggregate core body comprises building waste, phase-change microcapsules and cement. The phase-change artificial aggregate provided by the invention can consume the building waste and reduce the accumulation of the building waste, the phase-change material is not easy to leak, has enough strength and phase-change heat storage capacity, can replace natural aggregate, and has stronger practicability as a building aggregate material. And the concrete is more suitable for being applied to concrete of a building envelope structure with heat storage and heat release functions.
Owner:SHENZHEN UNIV
Construction aggregate crushing plant
The utility model discloses a construction aggregate crushing device, including a box body, a first feed port is provided on the top of the box body, a servo motor is fixedly connected to the front and rear ends of the top right side of the box body, a rotating rod is fixedly connected to the output end of the servo motor, crushing knives are fixedly connected to the outer surface of the rotating rod, a collecting box is provided at the bottom of the inner cavity of the box body, and a screening box is fixedly connected to the bottom of the left side of the inner cavity of the box body. The utility model arranges a cylinder, a movable plate and a movable wheel at the bottom of the box body, so that the device can be easily extended and moved when it needs to be moved, without the need for staff to carry it, thus meeting the needs of the staff, and by arranging a screening box, a vibration motor and a vibration screen plate at the bottom of the inner cavity of the box body, the crushed aggregate can be screened, and the small ones fall into the collection box through the discharge port, while the large ones remain above the vibration screen plate, thereby facilitating the subsequent use by the staff and reducing the trouble of the staff.
Owner:JIANGSU TUODING ENVIRONMENTAL PROTECTION TECH CO LTD
A turnover type building aggregate crushing device
The utility model relates to building aggregate processing technical field, and disclose a kind of turnover building aggregate crushing device, including crushing bin, the top fixed mounting of crushing bin has feeding hopper, the bottom fixed mounting of crushing bin has discharge hopper, the outside fixed mounting of crushing bin has support leg, the inside extension of crushing bin to outside is provided with crushing magnetic separation mechanism, the inside extension of crushing bin to outside is provided with turnover screening mechanism, crushing magnetic separation mechanism includes crushing assembly and magnetic separation component, crushing assembly is set in the inside extension of crushing bin to outside, magnetic separation component is set in the inside extension of crushing bin to outside.The turnover building aggregate crushing device, by setting crushing magnetic separation mechanism, in use, by main crushing roller and vice crushing roller synchronous reverse rotation, make it will waste concrete be crushed into building aggregate, simultaneously by setting magnetic separation cylinder to the magnetic separation of building aggregate after crushing, remove internal magnetic metal.
Owner:INNER MONGOLIA TRANSPORTATION VOCATIONAL & TECH COLLEGE (INNER MONGOLIA AUTONOMOUS REGION NAT TRANSPORTATION TECHNICIAN COLLEGE INNER MONGOLIA AUTONOMOUS REGION TRANSPORTATION ADVANCED TECH SCHOOL)
Integrated High-Efficiency Screening and Dust Removal Device for Building Aggregates
This utility model discloses an integrated device for high-efficiency screening and dust removal of building aggregates, relating to the field of building engineering technology. It includes a support frame; a screening assembly comprising a dust cover, a frame fixedly connected to the bottom of the dust cover, a screen fixedly connected to the inner wall of the frame, an extension plate fixedly connected to one side of the frame, and fixed blocks fixedly connected to both sides of the bottom of the frame; and a vibration assembly comprising a drive motor, one side of which is fixedly connected to one side of one of the fixed blocks, and a transmission rod fixedly connected to the output shaft end of the drive motor. This integrated device for high-efficiency screening and dust removal of building aggregates uses an air pump to create negative pressure inside the dust cover, causing free dust generated during screening to be transported to a dust collection bag under negative pressure, thereby avoiding air pollution, improving the quality of the working environment, and reducing the harm of dust to the human body.
Owner:JIANGSU TUODING ENVIRONMENTAL PROTECTION TECH CO LTD
Building aggregate multi-stage screening equipment
The utility model discloses building aggregate multistage screening equipment, and relates to the technical field of building construction equipment, the building aggregate multistage screening equipment comprises a device main body, a first screening plate, a second screening plate and a second spring, the top of the device main body is provided with a feed inlet, the bottom of the feed inlet is welded with the top of the device main body, and bearings are embedded in the two sides of the bottom of the device main body; the interiors of the bearings are slidably connected with sliding rods, one ends of the four sliding rods are welded to the side face of the first screening plate, when aggregate falls onto the surface of a third screening plate through a feeding port, the third screening plate can downwards compress second springs on the two sides after being impacted, and then buffering is conducted through the second springs; and therefore, the impact on the aggregate can be buffered, and the damage to the sieve plate when the aggregate falls down can be reduced.
Owner:ZHONGHAO CONSTRUCTION (ZHEJIANG) CO LTD
Negative pressure type environment-friendly production line for producing building aggregate by using building waste
The invention relates to a negative pressure type environment-friendly production line for producing building aggregate by using building waste. The negative pressure type environment-friendly production line comprises a primary crusher, an iron removal sorting machine; a screening machine; a secondary crusher; a magnetic separation screening machine; a sorting machine; sealing the pipeline; a sucking pump; and a watering device. In the production process, construction waste raw materials are fed into a first-stage crusher through a raw material loader to be crushed, then the materials are sequentially conveyed into machines such as an iron removal sorting machine to be treated, and finally the materials are conveyed to a finished product warehouse in a classified mode through three pipelines. In the whole production process, a peripheral sealing pipeline, an air extracting pump and a water spraying device are added, so that totally-closed production is realized under the micro-negative pressure condition. According to the construction waste recycling production line, the construction waste recycling efficiency is improved through the perfect production process and equipment, the whole production line is in a micro-negative pressure state, dust is prevented from overflowing through the water spraying device, air pollution to the environment is greatly reduced, water is recycled through the water tank, and meanwhile noise is reduced through the sound insulation plate adopted by the sealing pipeline.
Owner:SHAHE JINCHAO COMMERCIAL CONCRETE CO LTD +1
Method and device for producing a construction aggregate
A method and device for producing a construction aggregate from a combination of natural raw and recycled materials is described. The method involves mixing these materials and washing them in a washer to remove elutriable components, thereby enhancing the quality of the aggregate. The process is designed to be cost-effective, energy-efficient, and environmentally friendly, minimizing the need for virgin materials and reducing landfill waste.
Owner:T & T BROS GMBH
Building aggregate crushing equipment with pretreatment function
The invention belongs to the technical field of building aggregate treatment, and particularly relates to building aggregate crushing equipment capable of being pretreated, which comprises a screening box, a plurality of supporting plates are fixed at the bottom end of the screening box at equal intervals in the length direction of the screening box, the bottom of the screening box is open, and a conveying pipe is arranged above the screening box; a supporting rod is fixedly installed between the left end of the conveying pipe and the top end of the screening box. And the hammer crusher is used for crushing the building aggregate, the top feeding end of the hammer crusher communicates with the right end of the conveying pipe in an embedded mode, and the bottom discharging end of the hammer crusher communicates with the right end of the screening box in an embedded mode. The device has a pretreatment function, equipment blockage caused by the fact that large building aggregate directly enters the hammer crusher is avoided, the blockage risk of the equipment is remarkably reduced, the overall crushing efficiency of the equipment is improved, and the equipment failure frequency and the maintenance cost are greatly reduced.
Owner:CHINA CONSTR YANJING (BEIJING) CONSTR ENG CO LTD
A gradient crushing device for preparing building aggregate based on low-grade tailings iron
InactiveCN119771545ASolid waste managementGrain treatmentsArchitectural engineeringStructural engineering
The present invention relates to the technical field of construction aggregate preparation, specifically to a gradient crushing device for preparing construction aggregate based on low-grade tailings iron, comprising a crushing mechanism and a gradient mechanism, wherein the gradient mechanism is arranged inside the crushing mechanism, and the crushing mechanism comprises a transmission component, a guide component, a temporary storage component, a refinement component, a screening component and a crushing component, wherein the guide component is fixedly connected to the inner side of the transmission component, the temporary storage component is fixedly connected to the top of the inner side of the transmission component, the refinement component is fixedly connected to the surface of the temporary storage component, the screening component is fixedly connected to the front side of the temporary storage component, and the crushing component is arranged on the surface of the temporary storage component. The present invention provides a gradient crushing device for preparing construction aggregate based on low-grade tailings iron, which has a structure for gradient crushing of low-grade tailings iron, so that low-grade tailings iron can be gradient crushed, thereby improving the efficiency advantage of crushing low-grade tailings iron.
Owner:QINHUANGDAO XINGTIE BUILDING MATERIALS CO LTD
Screening device for construction aggregate production
The utility model belongs to screening device technical field, concretely relates to building aggregate production is with screening device, including vibrator, the working area of vibrator is installed with screen cloth, the bottom of vibrator is installed with vibrator, the surface on vibrator opening one side is welded with two supports, and the transverse rod is installed between two supports, the bottom of atomizing nozzle is provided with recovery groove, both ends of recovery groove are welded on the outer wall of corresponding support respectively, the utility model discloses, when vibrator carries out vibrating screening to building aggregate, water supply hose is connected with external water supply device at this moment. In this way, the water flow can flow to the atomizing nozzle through the water supply hose, and then the atomizing nozzle sprays water mist to suppress the dust generated during the operation of the vibrator. In addition, the transverse rod can rotate between the two supports through the first bearing and the round rod during use, so that the spray angle of the atomizing nozzle can be adjusted to meet more extensive use requirements.
Owner:JIANGSU TUODING ENVIRONMENTAL PROTECTION TECH CO LTD
A process for re-screening of titanium tailings
The application discloses a process for re-screening titanium tailings, adopts a strong magnetic heavy separation closed circuit process, is an effective supplement for the limitation of a spiral chute heavy separation titanium separation process, solves the problems of high grade of titanium tailings and loss of ilmenite, and guarantees to reach higher indexes in terms of yield and recovery rate, two types of similar spiral chutes are used in a titanium separation workshop to carry out the titanium tailings re-screening process, TiO2 grade 38.5% of titanium middlings is produced, the TiO2 recovery rate is improved, coarse particle sand in tailings output by the dressing plant is high-quality building aggregate, the sand aggregate comprehensive utilization in tailings is strengthened, waste is turned into treasure, that is, favorable conditions can be created for tailings transportation and reduction of tailings reservoir capacity pressure, and the economic benefits of the company can be improved, the TiO2 content recovered after re-screening is 4.00% of the total tailings content in the dressing plant, so that the raw materials in the underflow slurry of the thickener in the tailings workshop of the dressing plant can be fully recovered and utilized.
Owner:PAN ZHI HUA ZHONG HE KUANG YE YOU XIAN GONG SI
A special high-efficiency crushing and shaping machine for building aggregates
A special high-efficiency crushing and shaping machine for building aggregates, including a crushing and shaping machine housing and a feed port thereon, a crushing and shaping machine rotor is arranged in the crushing machine housing, a crushing and shaping machine rotor is arranged on the inner wall of the crushing and shaping machine housing on the upper part of the crushing and shaping machine rotor, and an adjustable leveling frame and a leveling screen plate are arranged on the inner wall of the crushing and shaping machine housing corresponding to the lower part of the crushing and shaping machine rotor, the leveling screen plate is arranged on the inner wall of the crushing and shaping machine housing, there are two adjustable leveling frames, which are arranged on both sides of the leveling screen plate, and a leveling lining plate is installed on the adjustable leveling frame. The adjustable leveling frame and leveling lining plate of the utility model. In this way, the materials falling from the first crushing and shaping machine housing and the second crushing and shaping machine housing are leveled and ground on the leveling lining plate, so that the long strips, irregular materials with sharp corners are turned into smooth particles, the roundness of the building aggregate is changed, and the product grade is improved.
Owner:ZHENGZHOU DINGSHENG HI TECH ENERGY ENG TECH CO LTD
Construction waste recycled aggregate treatment device
The invention relates to the technical field of construction waste recycling, in particular to a construction waste recycled aggregate treatment device which is characterized in that a conveying and spraying assembly comprises a conveying belt and a water conveying channel; the processing assembly is arranged at the end part of the conveying belt and comprises a shell and a mounting shell arranged on the inner wall of the shell; the water conveying channel and the spraying pipeline spray in the process that the conveying belt conveys the building aggregate, so that the surface of the building aggregate is wet, and the building aggregate can be continuously sprayed when being accumulated at the feeding port before entering the mounting shell, so that dust generated during subsequent crushing is effectively reduced; according to the building aggregate crushing device, building aggregate at the end of the conveying belt intermittently enters the mounting shell to be crushed, the amount of the building aggregate entering the mounting shell can be effectively controlled, a crusher can more sufficiently apply uniform crushing force to each batch of fed materials, more thorough crushing is achieved, meanwhile, the crushed building aggregate can be screened in the rotating process of the mounting shell, and the crushing efficiency is improved. And the building aggregate which does not meet the crushing standard can be subjected to secondary crushing again through the crushing component.
Owner:GUANGXI QINGHAN ENVIRONMENTAL TECHNOLOGY CO LTD
A recycling device for urban construction aggregate regeneration
The utility model discloses a kind of recycling devices for urban construction aggregate regeneration, including pulverization box, the top of the outer surface of the pulverization box is fixedly provided with feed passage, conveying frame is fixedly installed in the inside of feed passage, the one side of conveying frame is fixedly installed with feeding mechanism, the surface of feed passage is fixedly installed with closure mechanism, the outer surface of the pulverization box is fixedly installed with B servo motor.The recycling device for urban construction aggregate regeneration, by the setting of feeding mechanism and closure mechanism, building aggregate is put on the conveyor belt, external power supply is connected, hydraulic rod is opened, and the closure plate is opened, the A servo motor drives the conveyor belt to rotate, and the building aggregate is conveyed into the pulverization box through the feed passage, so that the effect of facilitating feeding is achieved, and after feeding is completed, the closure plate closes the feed passage, so that the pulverization of the building aggregate is carried out in the closed pulverization box, dust can be prevented, and environmental pollution can be avoided.
Owner:CHENZHOU HONGHUA WASTE CONSUMPTION CO LTD
Dust falling device applied to building aggregate feeding mechanism
PendingCN121823270AConveyorsControl devices for conveyorsArchitectural engineeringOrthopedic department
The invention relates to the technical field of building orthopedics dust falling, in particular to a dust falling device applied to a building aggregate feeding mechanism, which comprises a bottom vertical frame, a top feed hopper with a lifting frame at the bottom and a lateral guide belt, and the top feed hopper is inserted into the bottom vertical frame through the lower end of the lifting frame and is in sliding assembly with the bottom vertical frame. According to the dust falling device applied to the building aggregate feeding mechanism, an annular centrifugal dust suction mechanism is installed on the outer side of a bottom machining box body, split type material guide housings are fixedly assembled at strip-shaped assembly openings in the two ends of the upper end of a top feeding hopper, and the split type material guide housings are connected in series through external dust suction pipes; and upward flying dust is rapidly sucked into the interior in a high-speed dust suction mode, then is downwards guided into the opening position of the lower end of the bottom processing box body, and is directly discharged onto the lateral material guide belt through the retarding mechanism, so that the flying dust is reduced.
Owner:JIANGSU TAIZHUO CONSTRUCTION TECHNOLOGY CO LTD
Water-force coupling weakening and directional collision crushing aggregate processing device and method
The invention relates to the technical field of building aggregate processing, and discloses a water-force coupling weakening and directional collision crushing aggregate processing device and method.The water-force coupling weakening and directional collision crushing aggregate processing device comprises a soaking module and a collision module, and a soaking conveying device is used for soaking and wetting aggregate; the collision module comprises a first-stage drying and sorting device, a second-stage drying device, a collision device, an auxiliary pneumatic device and a third-stage sorting device; the collision device comprises an upper layer collision assembly and a lower layer collision assembly. The auxiliary pneumatic device is used for guiding aggregate in the two ends of the collision assembly to gather towards the middle till collision crushing occurs. According to the method, to-be-crushed aggregates are soaked in advance to be in a saturated state and regulated to be in a saturated surface dry state, the cohesion strength of aggregate particles is reduced through the wedging effect of water molecules, then two sets of aggregates with the same particle size group are accelerated to a set speed through synchronous acceleration, and accurate collision is conducted in a collision cavity, so that the crushing effect is optimized, and internal defect cracks are eliminated; and the energy efficiency of aggregate crushing and the quality of finished products are remarkably improved.
Owner:INNER MONGOLIA AGRICULTURAL UNIVERSITY
Split type protective cover applied to building aggregate chopper
PendingCN121797479AGas current separationGrain treatmentsArchitectural engineeringStructural engineering
The invention relates to the technical field of crushed aggregate dust collection, in particular to a split type protective cover applied to a building aggregate chopper, which comprises a lateral mounting frame mounted on the chopper, a lateral protective cover is fixed on the side wall of the lateral mounting frame through bolts, and outer side assembly frames bent outwards are arranged on the two side walls of the lateral protective cover. And internal material guide openings are formed in the two side walls of the lateral protective cover. The split type protective cover applied to the building aggregate chopping machine is composed of the lateral installation frame and the lateral protective cover, the outer material collecting cover is assembled on the lateral protective cover in a sliding mode, containers used for containing and storing grinding waste are formed on the two sides of the lateral protective cover, and material collection is convenient; the outer side convex cover protruding outwards is arranged in the center of the connecting face of the lateral protective cover, the built-in centrifugal impeller controlled by the chopper in a linkage mode is movably assembled in the outer side convex cover, driving is carried out through power of the chopper, and the dust collection efficiency is improved.
Owner:JIANGSU TAIZHUO CONSTRUCTION TECHNOLOGY CO LTD
Building recycled aggregate processing device with multi-stage crushing treatment
The building recycled aggregate processing device with the multi-stage crushing treatment function comprises a crushing box body, a feeding hopper is fixedly installed at the top of the crushing box body, a grinding machine is arranged in the crushing box body, a screening and crushing mechanism and a striking and vibrating mechanism are arranged at the bottom of the grinding machine, and the screening and crushing mechanism comprises a collecting hopper arranged at the bottom of the grinding machine; the collecting hopper is fixedly mounted on the inner wall of the grinding box body; a screening plate is arranged at the bottom of the collecting hopper; after building aggregate enters the crusher for crushing treatment, the crushed aggregate falls onto the screening plates with different spacing widths, that is, the aggregate is screened by the screening plates into a state of being classified according to different sizes of the aggregate, that is, the aggregate with different crushing degrees enters respective crushing areas respectively; and large aggregates are sent back again for secondary crushing, so that crushing of the aggregates is more refined and efficient, and tedious processing of the building recycled aggregates is avoided.
Owner:ANHUI JIABING RENEWABLE RESOURCES CO LTD
Automatic loading and delivering system for high-titanium blast furnace slag building aggregate
PendingCN119429738Aavoid security risksImprove shipping efficiencyControl devices for conveyorsLoading/unloadingSlagControl system
The invention provides an automatic charging and delivering system for high-titanium blast furnace slag building aggregate. The automatic charging and delivering system comprises a stock bin, a discharging assembly arranged below the stock bin, a metering and weighing assembly located below the stock bin and a PLC control system in communication connection with the discharging assembly and the metering and weighing assembly. The head end of the metering and weighing assembly is provided with a license plate number identification rod, the license plate number identification rod is in communication connection with the PLC control system, and vehicle basic information, required cargo loading information and cargo picking information are judged through the vehicle license plate identification rod. License plate numbers are recognized through a license plate number recognition rod, the names, the number, the vehicle types and the like of loaded products are judged, obtained information is transmitted to a center controller to guide the next operation, a discharging valve suitable for the vehicle types is opened according to vehicle type recognition when a vehicle reaches a designated loading position, discharging and metering are conducted at the same time, and when the reserved weight is accurately calculated and metered, the working efficiency is improved. Weighing information is transmitted to the rear end of the PLC control system for settlement, and after settlement is completed, a system indicating lamp guides the vehicle to leave.
Owner:GANGCHENG GRP LIANGSHAN RUIHAI IND
A phase change energy storage package, a preparation method thereof and application in a building wall
This invention provides a phase change energy storage encapsulation body, its preparation method, and its application in building walls, belonging to the technical field of solid waste resource utilization and building energy-saving materials. The phase change energy storage encapsulation body includes a core and a shell. The core includes a surface-modified porous carrier and a phase change material loaded in the pores of the surface-modified porous carrier. The surface-modified porous carrier includes a porous carrier and a silane coupling agent layer covering part or all of the pore surface and part or all of the outer surface of the porous carrier. The shell is an encapsulation layer covering the entire surface of the core. The porous carrier is a lightweight porous ceramic formed by sintering fly ash and desulfurized gypsum through pore-forming. The phase change energy storage encapsulation body combines energy storage and building aggregate functions, possessing high specific surface area, excellent salt corrosion resistance of the encapsulation layer, high compressive strength, and low cost, and can be incorporated into wall materials.
Owner:XIAN TPRI BOILER ENVIRONMENTAL PROTECTION ENG CO LTD +1
Building aggregate multi-stage screening equipment
Owner:中科智电科技安徽有限公司
A device for optimizing fine aggregate mixing based on low temperature negative pressure water flooding, multi-size sorting and temperature control
ActiveCN119175788BLarge specific surface areaReduce energy consumptionMixing operation control apparatusControl apparatusTemperature controlProcess engineering
The invention relates to the technical field of building aggregate processing, and discloses a device for optimizing fine aggregate mixing based on low-temperature negative pressure water driving with multiple particle sizes and temperature control. The batching system is used for storing building sand, and under the control of a control module, the building sand is distributed to a low-temperature dehumidification module through a first transmission module; the low-temperature dehumidification module is used for low-temperature drying of the building sand under the control of the control module, the screening module vibrates the building sand under the control of the control module until the screening operation is completed, and the screened building sand is distributed to a constant temperature discharging module through a third transmission module, and the building sand is heated to a constant temperature by the constant temperature discharging module with nitrogen as a heat exchange medium for storage; the invention can control the weighing of multi-graded building sand according to engineering requirements, mitigate the influence of seasonal temperature changes on the preparation of high-strength concrete raw materials, ensure the temperature consistency during the construction process, and improve the flexibility of construction.
Owner:INNER MONGOLIA AGRICULTURAL UNIVERSITY
Mortar preparation screening machine for recycling building aggregate
The invention belongs to the technical field of separation, and discloses a mortar preparation screening machine for recycling building aggregate, which comprises a screening machine frame assembly, and is characterized in that the screening machine frame assembly comprises a screening machine arm, a concentric-square-shaped frame is fixedly arranged at the top of the screening machine arm, and an inner shaft rod with a first bevel gear is rotationally arranged at the top of the concentric-square-shaped frame; an outer shaft pipe with a second bevel gear is rotationally arranged at the bottom of the concentric-square-shaped frame, a screening roller disc assembly for conducting roller screening on the building aggregate is fixedly arranged at the bottom of the inner shaft rod, and a grinding disc assembly for crushing the unqualified building aggregate again is fixedly arranged on the outer wall of the outer shaft pipe. A reversely rotating disc body structure is formed between the grinding disc assembly and the screening roller disc assembly, in this way, reverse rotating crushing of building aggregate between the grinding disc assembly and the screening roller disc assembly is achieved, meanwhile, a screening gap is formed between every two adjacent screening rollers, and the screening efficiency is improved. At the moment, the building aggregate between the grinding disc assembly and the screening roller disc assembly is rotationally conveyed downwards, and meanwhile downward roller screening is achieved.
Owner:GANZHOU QIANGFA MACHINERY EQUIPMENT LEASING CO LTD
Apparatus tool and attachment for excavator for forming a drainage system and method
An apparatus, system, and / or method for forming a drainage system. The apparatus comprises a linearly elongated handle depending from a linearly elongated body used for forming a channel through tamping. The system and / or method for forming such a system includes tamping means having a head with a handle upwardly depending therefrom and utilized for forming a channel in the ground. A quantity of construction aggregate is placed in the channel. A hemicylindrical conduit is installed superjacent the construction aggregate via mechanical fasteners. The apparatus may be controlled manually or inserted as an attachment to excavating machinery.
Owner:RICHARDSON ERIC
Aggregate conveying device for bridge high pier concrete construction
The invention relates to the technical field of aggregate conveying devices, and discloses a bridge high pier concrete construction aggregate conveying device which comprises a first conveying unit and a second conveying unit, and further comprises an impurity removing assembly, a conveying assembly and a conveying assembly, the downward turning assembly is used for turning over the aggregate in the process of removing the fine impurities; the side pushing assembly is used for preventing the aggregate from being accumulated on the two sides of the second conveying unit. Through the arrangement of the impurity removing assembly, in the process that aggregates are transferred from the first conveying unit to the second conveying unit and pass through a screen, fine impurities mixed in the aggregates can fall into a collecting box in the mounting frame through the screen, and the effect of removing the fine impurities in the aggregates is achieved; and the shifting fork can drive the screen to shake, so that sliding of aggregate above the screen and falling of fine impurities are promoted.
Owner:GUIZHOU HIGHWAY ENG GRP
Hydrophobic inorganic material, preparation method and method for preparing water permeable brick by using hydrophobic inorganic material
The invention relates to the technical field of functional building materials, in particular to a hydrophobic inorganic material, a preparation method and a method for preparing a water permeable brick by using the hydrophobic inorganic material. The composite material is composed of a first-level skeleton phase composed of silica fume, kaolin and calcined talcum powder, a second-level structure phase composed of nanometer aluminum oxide, spherical silicon dioxide powder and flaky magnesium hydroxide, a ceramic functional component composed of boron carbide, yttrium oxide and silicon carbide fibers, reactive adhesives such as sodium metasilicate and aluminum phosphate, and a ternary hydrophobic modifier in a synergistic manner. The hydrophobic granular material is formed through ball-milling dispersion, twin-screw granulation, drying and roasting treatment. The compactness and the strength of the material are remarkably improved through interface enhancement, lamellar support and multi-scale compounding in structure, and meanwhile, the uniformity and the durability of a hydrophobic layer are guaranteed through a ternary modifier. The obtained material has high strength, stable hydrophobicity and appropriate porosity, and can be widely applied to preparation of water permeable bricks and functional building aggregates.
Owner:QINHUANGDAO BOCHENG CEMENT PRODUCTS CO LTD
A mud removal device for highway bridge subgrade and pavement construction
This application provides a mud removal device for highway bridge subgrade and pavement construction, used for washing and removing mud from construction aggregates. It includes a support base, a washing chamber, and a spiral conveyor mechanism. The washing chamber is installed on the support base and has an inlet, an overflow outlet, a feed inlet, and a discharge outlet. An axial flow fan is installed inside the washing chamber to drive fluid to rise and overflow. The spiral conveyor mechanism is installed inside the washing chamber, with its spiral axis inclined to the ground. The discharge outlet is located at one end of the washing chamber along the spiral axis. The inlet, overflow weir, and feed inlet are located near the opposite end of the washing chamber along the spiral axis. The inlet, turbulence-prone section, overflow outlet, and discharge outlet are distributed sequentially along a first direction and gradually move away from the first plane. A preset distance is provided between the turbulence-prone section and the spiral conveyor mechanism. Compared with the prior art, this application can promote water flow upward, reduce mud deposition, and effectively improve the washing effect.
Owner:CHINA RAILWAY BEIJING ENGINEERING BUREAU GROUP CO LTD SHENYANG BRANCH
Sand sorting machine for aggregate production
The utility model relates to a kind of building aggregate technical field, especially a sand selecting machine for aggregate production.The utility model provides a sand selecting machine for aggregate production, including organism, screen, feed inlet, filter frame, buffer block, second motor and power pole;The top of organism is provided with feed inlet, screen is installed in feed inlet, filter frame is installed in organism, buffer block is installed on filter frame, second motor is installed in buffer block by recess, the output shaft of second motor is connected with power pole by coupling.The preliminary screening is carried out on screen, second motor works, drives filter frame to rotate, small-grained sand is screened from the smaller hole in the bottom of filter frame, along the slope of organism bottom falls into discharge port, larger particle moves to the hole in the center of filter frame and falls into collecting frame with the rotation of filter frame, to achieve the effect of high-efficiency and fast screening, reduce the labor intensity of worker.
Owner:JIANGSU YAKFENG CONSTRUCTION ENGINEERING CO LTD
Process for rescreening titanium tailings
The invention discloses a process for re-screening titanium tailings, which adopts a strong magnetic gravity separation closed-loop flow, is an effective supplement for limitation of a spiral chute gravity separation titanium separation process flow, solves the problems of high titanium separation tailings grade and ilmenite loss, and can ensure that the yield and the recovery rate reach higher indexes at the same time. Two spiral chutes with similar models are adopted in a titanium separation workshop to carry out a titanium tailing rescreening process, titanium middlings with the TiO2 grade being 38.5% are produced, the recovery rate of TiO2 is improved, coarse-particle gravel in tailings produced by a dressing plant is high-quality building aggregate, comprehensive utilization of gravel aggregate in the tailings is enhanced, waste is turned into wealth, and the production cost is reduced. Compared with the prior art, the method has the advantages that advantages can be created for tailing conveying and tailing pond capacity pressure reduction, economic benefits of companies can be improved, the content of recycled TiO2 after rescreening is 4.00% of the total content of tailings in a mine plant, and raw materials in underflow ore pulp of a thickener in a tailing workshop of a dressing plant are fully recycled and utilized.
Owner:PAN ZHI HUA ZHONG HE KUANG YE YOU XIAN GONG SI