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574results about "Pretreatment control" patented technology

Systems and methods for dynamic building material modifications

Methods, apparatuses, and system are described herein for dynamic building material modification. An example method includes receiving sensor data from a sensor device that is associated with a first stage of a plurality of stages that form a process for a construction project and that is associated with a first portion of a building material associated with the first stage. The method includes determining one or more characteristics associated with the first portion of the building material and modifying, via a control system, one or more parameters of the building material from which the first portion of the building material is derived based on the one or more determined characteristics.
Owner:BARNETT MAX DORN ADAM +1

Proactive ai-driven concrete-production system

Embodied within a realm of transformative innovation, a proactive Al-powered system emerges, seamlessly and autonomously managing the addition of chemical admixtures to control and adjust the composition of concrete during production and transport. The system comprises a concrete mixer tank, reservoirs for the chemical admixtures, a mechanism to dispense them as needed, sensors, and proactive Al-based control system, embodying the pinnacle of the proactive intelligent automation. Sensors track the concrete's properties and environmental conditions, and the proactive Al-based control system analyses the sensor data in real time to discern the precise type, quantity, and timing of chemical admixtures required to maintain the optimal properties of the concrete within the mixer tank, ensuring unwavering fidelity to the desired specifications. This autonomous Al-based system aims to produce concrete with minimal water addition, ensuring consistent concrete quality and reducing reliance on manual intervention.
Owner:SENSOLYZER ADVANCED SENSING SYST LTD

Methods and compositions for assessement of concrete carbonation

Provided herein are methods and compositions for determining and reporting carbon dioxide sequestered and / or carbon dioxide avoided in operations involving concrete, including concrete raw material transport, concrete production, and concrete use.
Owner:CARBONCURE TECHNOLOGIES INC

Lifting, transferring and mixing device for coarse aggregate ultra-high performance concrete premix

The coarse aggregate ultra-high performance concrete premix lifting, transferring and mixing device comprises a control system, an aggregate batching system, an aggregate lifting system, a dry mixing main machine system, a feeding vehicle, a steel fiber feeding system and a stirring system, the whole stirring process is automatically controlled and comprises key steps of automatic metering, automatic raw material feeding, mixing and the like, so that manual operation is remarkably reduced, errors and inconsistency caused by manual metering are avoided, and the accuracy and repeatability of stirring each time are ensured; step-by-step feeding of each part is coordinated through a control system, so that the stirring efficiency and the uniformity of concrete are improved; by establishing a relational expression between a concrete mixture stirring uniformity index and parameters such as the stirring time, the stirring speed, the number of stirring blades, the vibration frequency of the two-stage vibrating screen and the like, key parameters in the stirring process are more accurately controlled, and it is ensured that the stirring uniformity of each batch of concrete reaches a preset standard.
Owner:THE FIRST ENGINEERING COMPANY OF CCCC FOURTH HARBOUR ENGINEERING CO LTD +1

Alkali residue-based fluidized stabilized soil and preparation method thereof

The invention provides alkaline residue-based fluidized stabilized soil and a preparation method thereof, and belongs to the technical field of comprehensive utilization of solid wastes. The alkaline residue-based fluid solidified soil comprises the following components: alkaline residue, a curing agent, an admixture, water and an additive, wherein the mass ratio of the water to a dry basis is (0.85-1.45): 1; the mass ratio of the additive to the curing agent is (0.001-0.01): 1. The preparation device comprises an alkaline residue slurrying system, a fluid-state solidified soil slurry preparation system, a pumping pouring system and an intelligent control platform, and the operation control problem caused by high water content and large water content fluctuation of alkaline residues can be effectively solved by optimizing the slurrying mode and the technological process.
Owner:ZHONGHE ECOLOGICAL ENVIRONMENT CO LTD +1

Construction material assessment method and systems

Globally our environment comprises structures built to perform a meet different requirements including residential, commercial, retail, recreational and service infrastructure. Whilst, millions of tons of construction materials are deployed annually the quality control procedures in many instances have not changed to reflect today's demands. Accordingly, it would be beneficial to provide construction companies, engineering companies, infrastructure owners, regulators, etc. with means to automated testing / characterization of construction materials during at least one of its manufacture, deployment in construction and subsequent infrastructure life. It would be further beneficial for such automated methods to exploit self-contained data acquisition / logging modules allowing them to be employed with ease at the different points in the life cycle of a construction material and / or construction project.
Owner:GIATEC SCIENTIFIC INC

A mortar conveying system

The present invention relates to the technical field of mortar conveying, and in particular to a mortar conveying system, which includes a feed hopper, a feeding pipe connected to the bottom of the feed hopper, and a bracket fixed on the surface of the feed hopper. The system further includes: a auger rotatably connected to the inner wall of the feeding pipe, a support block fixed to the top of the bracket and a support mechanism installed thereon, and a servo motor fixed to the top of the support block. The present invention facilitates the disassembly and cleaning of the conveying pipe by the staff. In addition, this conveying system can not only break and stir the agglomerated mortar, but also reduce the blockage inside the discharge pipe, solving the problem that after the use of some current mortar conveyors, it is inconvenient for the staff to clean the conveying pipe and the auger, thus easily affecting the subsequent conveying efficiency, and solving the problem that when some current mortar conveyors are in use, the agglomerated mortar in the feed hopper that is not transported away in time easily affects the smoothness of the subsequent conveying operation.
Owner:邹城市创为新材料有限公司

Space free distribution micro-scale cage-shaped unit interlocking confined concrete and preparation method thereof

The invention discloses spatial free distribution micro-scale cage-shaped unit interlocking confined concrete and a preparation method thereof.The preparation method of the spatial free distribution micro-scale cage-shaped unit interlocking confined concrete comprises the steps that a concrete premix, a pouring formwork and a plurality of micro-scale cage-shaped units are prepared; the concrete premix and the multiple micro-scale cage-shaped constraint units are mixed, and pouring is completed in the formwork; and curing and hardening the concrete premix in the pouring template and a concrete reinforcing framework formed by interlocking the plurality of cage-shaped constraint units to obtain the spatial free distribution micro-scale cage-shaped unit interlocking constraint concrete. The cage-shaped constraint units with multiple concrete component scales are doped in the concrete premix, the spatial free distribution micro-scale cage-shaped unit interlocking constraint concrete is prepared, and the mechanical property of a concrete member can be improved.
Owner:CHINA CONSTR THIRD ENG BUREAU GRP CO LTD

Concrete mixing plant

A concrete mixing plant comprises a mixing cabin, a mixing mechanism and a discharging driving mechanism. The discharging driving mechanism is arranged on the stirring cabin, the stirring mechanism is connected with the discharging driving mechanism, and the stirring mechanism is configured to be driven by the discharging driving mechanism to ascend and descend in the stirring cabin to promote concrete discharging; a discharging pipe is arranged on the bottom wall of the stirring cabin, the stirring mechanism comprises a stirring shaft and an extrusion discharging plate, and the extrusion discharging plate is configured to slide in the discharging pipe so as to push concrete to be discharged; a material receiving and dispersing plate is fixedly arranged on the inner wall of the stirring cabin, discharging grooves are formed in the material receiving and dispersing plate, the discharging grooves are distributed on the material receiving and dispersing plate in a staggered mode, a material dispersing push plate is fixedly arranged on the upper portion of the stirring shaft, and the material dispersing push plate is arranged to be attached to the upper surface of the material receiving and dispersing plate when the stirring shaft is in a descending state. The invention relates to the technical field of concrete production, and provides a concrete mixing plant capable of effectively improving the mixing efficiency and uniformity of concrete raw materials and avoiding blockage of a discharging pipe during discharging.
Owner:XINYI DADE CONCRETE CO LTD

Continuous concrete stirring device

The invention discloses a continuous concrete stirring device which comprises a rack and a composite hopper installed on the rack and used for temporarily storing materials, the composite hopper comprises a feeding port in the upper portion and a discharging port in the lower portion, the discharging port extends downwards to form a stock bin B, and a quantitative feeding mechanism is installed in the stock bin B; the lower part of the quantitative feeding mechanism is communicated with a material mixing barrel which is obliquely arranged and is used for stirring and discharging, a stirring mechanism is arranged in the material mixing barrel, the material mixing barrel is also provided with a water supply mechanism which is communicated with the interior of the material mixing barrel, and the water supply mechanism and the quantitative feeding mechanism are electrically connected with a control mechanism which is arranged on the composite hopper. Concrete is stirred in a continuous operation mode of feeding, stirring and discharging, continuous concrete supply can be provided for a construction site, and the problem that an existing batch stirring mode occupies a large site space is solved.
Owner:SICHUAN XINJIUZHOU TECHNOLOGY CO LTD

Method, computer program products and devices for calculating optimised concrete formulations

The invention relates to a method for calculating optimised concrete formulations and providing process data (PD1; PD2) for controlling system components (214, 215, 216; 221, 222) for the purpose of specifically processing raw materials (RA, RB,...) to form solid fractions (FK1, FK2,...) to be prepared and / or producing concrete (BTN) or concrete products by means of the prepared solid fractions (FK1, FK2,...) and further already prefabricated solid fractions (FK#), wherein the method (100) is designed for the weighted combination of l+m grading curves (SLV1... SLV3; SLP1... SLP8) to form a result grading curve (SLE), wherein the grading curves each represent a grain size distribution of one of the solid fractions (FK1, FK2, FK3...) given or not given, but still to be prepared by processing raw materials (RA, RB...); and wherein the method (100) is designed to match the result grading curves to a predefinable sample grading curve (SLM) which represents a grain size distribution with maximum packing density, as a result of which the optimised result grading curve (SLE) describes an ideal combination of all l+m solid fractions (FK1, FK2,... FK#) and the process data thereof for a sufficiently maximum packing density.
Owner:HYPERCON SOLUTIONS GMBH

Green low-carbon concrete construction operation device

The invention relates to the technical field of concrete construction, in particular to a green low-carbon concrete construction operation device which comprises a vehicle body, a stirring tank is fixedly mounted on one side of the upper end of the vehicle body, a feeding cylinder is fixedly mounted on one side of the upper end of the stirring tank, and a feeding hopper is fixedly mounted at the upper end of the feeding cylinder. A first motor is started to drive a crushing roller and a rotating roller to rotate, the crushing roller crushes stones, the crushed stones fall at the upper end of an inclined plate, the rotating roller evenly throws the crushed stones to the upper end of a sieve plate, the stones are filtered, and the matched stone fragments fall into a stirring tank and are mixed with additives such as cement and sand to form concrete. Then a valve on the discharging pipe is opened, the vehicle body is pulled towards the concrete outlet side, the pressing cylinder rotates while moving up and down on the concrete, the surface of the concrete is vibrated to be flat, the concrete surface is leveled through the patter and the leveling plate, secondary leveling of workers is not needed, the labor intensity is reduced, and the efficiency is improved.
Owner:THE FIRST COMPARY OF CHINA EIGHTH ENG BUREAU LTD

A continuous, high-efficiency, automatic dry-mix mortar preparation equipment

This invention discloses a continuous, high-efficiency, automatic dry-mixed mortar preparation equipment, relating to the field of mortar preparation technology. It includes a sand drying device and a feeding hopper. A sand particle screen is installed on one side of the sand drying device, and a screw conveyor connects the sand drying device and the sand particle screen. The dried sand enters the sand particle screen via the screw conveyor. Under the action of a first and second uniform material assembly, the mortar on the first conveyor belt consists of coarse sand, fine sand, cement, and filler laid out in sequence. Because the fine sand can fill the gaps in the coarse sand, reducing the relative movement space of the coarse sand and increasing internal friction, the cement and filler can be positioned on top of the coarse and fine sand. The dry-mixed mortar is stacked in a layered structure in a packaging bag using an anti-segregation telescopic tube, reducing stratification during bagging and transportation after mortar preparation, and reducing the mixing time between the mortar and water in the later stages.
Owner:FUJIAN CHUANGLIAN BUILDING MATERIALS CO LTD

Powder feeding device for concrete mixing plant

The invention relates to the technical field of powder feeding, and discloses a powder feeding device for a concrete mixing plant, which comprises an outer cylinder, a discharging hopper is arranged at the bottom, a top cover is arranged at the top, a feeding structure is arranged on the top cover, a bag opening connecting structure is arranged at an inlet of the feeding structure, and a crushing and screening structure is slidably arranged in the outer cylinder. The crushing and screening structure comprises a screening module, a crushing module and a vibration dust removal module; the vibration dust removal module comprises a ratchet wheel rod and a supporting rod which are fixed to the outer cylinder, ratchets are arranged at the bottom of the ratchet wheel rod, the screening module is provided with a screen, one end of a rotating shaft of the screen is movably connected to the ratchet wheel rod in a sleeving mode and provided with a transmission ratchet wheel meshed with the ratchet wheel rod, and the other end of the rotating shaft of the screen is movably connected to the supporting rod in a sleeving mode and provided with a supporting plate; and a supporting spring is arranged between the supporting plate and the supporting rod. Compared with the prior art, the dust removal device has the advantage that residual powder is shaken off through vibration generated by the vibration dust removal module.
Owner:SHANXI JINCHENG ROAD & BRIDGE CONSTR CO LTD +1

Systems and methods for quantum material-related characterizations

Systems, computer program products, and methods are described herein for quantum material-related characterizations. With reference to an example method, the method interacts one or more quantum states with a target material, generates one or more first data elements based on a measurement associated with the interaction of the one or more quantum states with the target material, and outputs the one or more first data elements. The method further determines a change in at least one quantum state of the one or more quantum states after the interaction with the target material, generates one or more second data elements associated with a characteristic of the target material based on the determined change in the at least one quantum state, and outputs the one or more second data elements.
Owner:BARNETT MAX DORN ADAM +1

Coal mine underground grouting filling rapid slurrying device and method thereof

The invention relates to the technical field of mining area filling, in particular to a coal mine underground grouting filling rapid slurrying device and a method thereof.The coal mine underground grouting filling rapid slurrying device comprises a stirring tank, a water inlet pipe is fixedly connected to the top of the stirring tank, a vertical pipe is installed above the water inlet pipe through a flange, and a spherical end is arranged on the vertical pipe; a cylindrical expansion end is arranged on the vertical pipe and located above the spherical end, a pressure-bearing ring capable of moving up and down is arranged in the cylindrical expansion end, and the spherical end is arranged on the vertical pipe and matched with a rotatable spherical valve element in the spherical end, so that after water injection is completed, a spring is lifted up to drive the pressure-bearing ring to move upwards, and the pressure-bearing ring is driven to move upwards. The pressure-bearing ring moves upwards to finally drive the spherical valve element to rotate, so that the water injection hole and the vertical pipe are staggered, the spherical end is sealed, and dust is prevented from entering the water injection pipe and being adsorbed together with water attached to the pipe wall of the water injection pipe to generate condensation, so that water flow passing through the water injection pipe is affected.
Owner:ANHUI UNIV OF SCI & TECH +1

Homogenizing and mixing device for fused zirconia corundum bricks

The invention relates to the technical field of production of fused zirconia corundum bricks, in particular to a homogenizing and mixing device for fused zirconia corundum bricks, which comprises a mixing box, a hopper, a connecting piece and a mixing cylinder, a feed port and an opening are respectively formed in opposite sides of the outer wall of the mixing cylinder, and a filter screen is mounted on the opening. According to the homogenizing and mixing device for the fused zirconia corundum bricks, raw materials are stirred in all directions through a mixing barrel on a connecting piece, meanwhile, a second driving source drives a supporting frame to rotate around a connecting plate in the axial direction, the connecting piece slides in a center-edge-center reciprocating mode along a curve-shaped limiting sliding rail, and the raw materials are uniformly mixed; the stirring part circulates between the central area of the mixing cavity and the edge area of the inner wall, so that the mixing area of raw materials is increased, and stirring dead angles are avoided.
Owner:HENAN ZHENYA NEW MATERIALS CO LTD

Low-magnetism low-hydration-heat concrete and preparation method thereof

The invention relates to the field of concrete, in particular to low-magnetism low-hydration-heat concrete and a preparation method thereof. The concrete comprises the following raw materials: a cementing material, fine aggregate, coarse aggregate, water and a water reducing agent, the cementing material comprises cement and slag powder, the cement accounts for 60%-70%, and the slag powder accounts for 30%-40%; the coarse aggregate adopts three-graded broken stone, the maximum particle size is 80 mm, the maximum value allowed by water transportation engineering specifications is met, and the use amount of a cementing material is effectively reduced and can be reduced by about 15% compared with that of common C30 concrete; the reduction of the cementing material not only can reduce the cost of the concrete and bring remarkable economic benefits, but also can reduce the hydration heat in the mass concrete, and does not need to add a hydration heat inhibitor to reduce the cracking risk of the concrete; the raw materials are detected by a metal detector, so that the raw materials are prevented from being mixed with magnetic substances, the slump of the concrete is 30-80mm, and the concrete is transported by adopting a hanging tank, a belt conveyor, a dumper and the like, so that the construction is convenient.
Owner:CCCC FIRST HARBOR ENGINEERING CO LTD +2

Concrete mixing plant free of flying dust during feeding

The invention discloses a concrete mixing station without flying dust during feeding, and relates to the technical field of stone cutting, the concrete mixing station comprises a cutting dustproof mechanism and a dust collector mounted at the top of the cutting dustproof mechanism, a crushing and mixing mechanism is arranged at the bottom of the cutting dustproof mechanism, and a mixing box is arranged on one side of the bottom of the crushing and mixing mechanism; the cutting dustproof mechanism comprises a cutting support, a cutting fixing cover is fixedly installed on one side of the top of the cutting support, a dust collecting cover is fixedly installed on the inner side of the top of the cutting fixing cover, the dust collector is fixedly installed on the top of the dust collecting cover, and a dust collecting fan is arranged on the inner side of the top of the dust collector. Connecting pipes are symmetrically installed on the two sides of the top of the dust collection cover, a feeding pipe is fixedly installed between the two connecting pipes, the feeding pipe is fixedly installed at the bottom of the cutting support, and dust generated by stone cutting is absorbed through a dust collector and a dust collection fan. And dust generated at the feeding pipe can be absorbed through the connecting pipes on the two sides of the dust collecting cover.
Owner:CHINA RESOURCES CONCRETE (FOSHAN) CO LTD

Building ceramic wetting powder production process

The invention relates to the technical field of building ceramic production, in particular to a building ceramic wetting powdering production process which is characterized in that in the upgrading and updating dry-method powdering production process link, granulation is carried out, and fine powder is bonded and gathered into granular powder through water drops; the fine powder is uniformly atomized and wetted by fine water mist, so that the fine powder is not granulated. According to the technology, non-stale powder obtained after powder preparation is directly connected with a press for forming, and an anti-sticking roller screen and an anti-sticking material distributing device are used in a matched mode, so that the production effect the same as that of wet-method powder preparation is achieved, meanwhile, the technology route that after slurry grinding, impurity removal and iron removal are conducted through a ball mill in the wet-method powder preparation process, slurry is subjected to filter pressing to form mud, the mud is dried and then crushed into powder, and then wetting powder preparation is conducted is broken through; therefore, a novel powder production process flow which can overcome the defects of a dry-method powder production process and the energy consumption problem of wet-method powder production and is compatible with each other and capable of covering all regions and all categories is formed.
Owner:北京喜诺德科技有限公司

Concrete production system, feeding method and feeding device

The invention relates to a concrete production system, a feeding method and a feeding device.The concrete production system comprises a discharging hopper, a sand making assembly, a stirring assembly, a transfer bin and a first conveying device.The first conveying device comprises a first bearing part and a second bearing part; the first receiving part corresponds to the output part of the discharge hopper and is used for receiving sand making raw materials or gravel materials output by the discharge hopper and conveying the sand making raw materials or the gravel materials to the sand making assembly or the stirring assembly; and the second receiving part corresponds to the output part of the transfer bin and is used for receiving the finished sand output by the transfer bin and conveying the finished sand to the stirring assembly. According to the concrete production system, the feeding method and the feeding device provided by the embodiment of the invention, the occupied area can be reduced, and the cost is reduced.
Owner:CHANGDE SANY MACHINERY CO LTD +1

System and method for sequestration and utilization of co 2 for concrete mixing plant

Disclosed in the present invention are a system and method for sequestration and utilization of CO2 for a concrete mixing plant. The system comprises a slurry-making module, a circulating and grinding module and a material storage and use module. The circulating and grinding module can grind, in the presence of a gas containing CO2 and medium balls, a composite slurry prepared by the slurry-making module, and can cyclically use the gas containing CO2, so as to achieve continuous production of carbon mineralization slurry. The material storage and use module comprises a material storage tank and a stirrer which are connected to each other, the material storage tank being used for receiving and storing the carbon mineralization slurry from a slurry tank, and the stirrer being used for mixing the carbon mineralization slurry to produce commercial concrete. The present invention uses a liquid-phase grinding mechanical force to continuously strip the surfaces of solid waste particles in the composite slurry and uses a chemical dissolution promotion component to improve the diffusion rate of CO2 and Ca2+, thereby completely releasing the carbonization potential of solid wastes, and shortening the carbonization time of traditional non-in-situ mineralization reactions from several hours into within 40 min. The present invention consumes industrial solid wastes and further solidifies CO2 gas, achieving the use of CO2 as gelatinization materials.
Owner:HUBEI UNIV OF TECH

A foamed ceramic production system and method using dry powder making

The present invention discloses a production system and method of foamed ceramics using dry powder making. The production system includes: an integrated structure of a mesh belt dryer and a kiln, and a vertical mill. The formula material enters the vertical mill after being dried by the mesh belt dryer, and does not include a granulation system for the powder material; the setting of the integrated structure of the mesh belt dryer and the kiln utilizes the kiln to supply heat to the front and rear parts of the mesh belt dryer. The present invention solves the problem of high energy consumption and power consumption caused by the continued use of wet powder making technology for existing foamed ceramics, and can save more than 40% of energy, more than 30% of electricity, more than 95% of water in the production of foamed ceramics, shorten the kiln firing cycle by more than 25%, and reduce carbon dioxide emissions by more than 40%.
Owner:北京喜诺德科技有限公司 +1

Multi-mode self-adaptive UHPC fiber dispersion metering device and method

The invention discloses a multi-mode self-adaptive UHPC fiber dispersion metering device and method.The device comprises a dispersion bin and a belt conveying device, a weighing device is assembled on the belt conveying device so as to dynamically weigh fiber materials on the belt conveying device in real time, and the upper end and the lower end of the dispersion bin are connected with a discharging bin and a discharging hopper respectively; a discharging opening communicated with the discharging hopper is formed in the middle of the dispersing bin, a material distributing disc is rotationally arranged on the discharging opening, a main shaft is assembled in the middle of the material distributing disc, a first motor is installed at the top of the discharging bin through a support, and an output shaft of the first motor is in transmission connection with the main shaft; through the multi-mode self-adaptive design, the device can automatically adjust the dispersion strength, switch the filter sieve plate and adapt to flow control parameters according to the characteristics of different types of fibers such as synthesis, minerals and metals, realizes efficient and uniform dispersion and accurate metering of the fibers, effectively adapts to the production requirements of multi-formula UHPC (Ultra High Performance Concrete), and greatly improves the application range and production flexibility of the device; and the UHPC quality stability is ensured.
Owner:FUJIAN WUJIANG CONSTR CO LTD +1

Accurate mixing control system suitable for large-scale precooled concrete production

ActiveCN119526591ARealize pre-coolingAvoid the problem of wrong materialsMixing operation control apparatusPretreatment controlPipePlant
The invention relates to the related technical field of mixing plants, and discloses a precise mixing control system suitable for large-scale precooled concrete production, the precise mixing control system uses a mixing plant and a mistake-proof valve of a feed bin pipeline of the mixing plant, and the precise mixing control system comprises a feed bin body, a material level meter, a control device and a control device, a cleaning and discharging valve is arranged in the center of the bottom of the stock bin body; the mistake-proof valve is installed at the through connection position of the feeding pipe and the stock bin body, the mistake-proof valve comprises a pre-storage cavity formed in the inner wall of the stock bin body, and the pre-storage cavity communicates with the feeding pipe; the positioning cylinder is fixed to the top of the pre-storage cavity, a push rod is movably installed in the positioning cylinder in a telescopic mode, and the tail end of the push rod is fixedly connected with the upper end of a rod piece. According to the precise mixing control system suitable for large-scale precooling concrete production, precooling treatment of large-scale concrete is achieved, and meanwhile, when a material bin pipeline is used for conveying materials, the problem that the materials are fed by mistake when the materials are conveyed through the interior of the pipeline is effectively avoided.
Owner:CCCC FIRST HARBOR ENGINEERING CO LTD +1

Equipment for making recycled concrete aggregate from construction solid waste

The present invention relates to the technical field of solid waste utilization and production equipment, and discloses a device for producing recycled concrete aggregate from construction solid waste, comprising a feed hopper, a bottom cover fixedly installed on one side of the bottom of the feed hopper, a rotating drum fixedly installed on the top of the bottom cover, a processing box fixedly installed on one side of the bottom cover, a third motor fixedly connected to one side of the processing box, a fixed rod slidably connected to the processing box, a connecting rod fixedly installed on the top of the fixed rod, a rack fixedly connected to one end of the connecting rod, a main drive gear sleeved on the output shaft of the third motor, the main drive gear and the rack engaged for transmission, the device for producing recycled concrete aggregate from construction solid waste drives the third motor to perform forward and reverse rotation, so that the aggregates can grind and break up each other by relying on their own edges and corners, and in the process of washing the aggregates, the aggregates rub and grind the aggregates themselves to refine the particle size, and the aggregates can be used directly after being ground.
Owner:HUNAN XINYIDA NEW MATERIAL TECH CO LTD

Concrete crushing and screening device and recycled asphalt concrete production process

The invention belongs to the technical field of crushing equipment, and particularly provides a concrete crushing and screening device and a recycled asphalt concrete production process. The concrete crushing and screening device comprises a multi-stage vibrating screen, a first-stage crusher and a second-stage crusher, and the multi-stage vibrating screen can screen concrete materials into at least three types according to the particle size in advance. In the working process, powder materials which do not need to be crushed repeatedly are directly discharged through the corresponding discharging ports and do not enter the first-stage crusher and the second-stage crusher any more, energy consumption is reduced, and excessive crushing is avoided. Coarse aggregate with large particle size firstly enters the primary crusher through the corresponding discharge port, and then enters the secondary crusher through the discharge channel for secondary crushing. The graded crushing design ensures that the coarse aggregate is fully crushed, the mixing of substandard aggregate or powder materials in a final product is reduced, and the grading uniformity of the recycled aggregate and the quality stability of the product are improved.
Owner:HEBEI DAOQING NEW BUILDING MATERIALS TECH CO LTD

Processing method convenient for recycling waste fan blade material

The invention belongs to the technical field of crushing and regeneration, and particularly relates to a processing method convenient for recycling waste fan blade materials, which comprises the following steps: S1, a pretreatment stage; s2, a particle crushing and fiber crushing stage; s3, a mixing and compounding stage; s4, a forming and pre-burying stage; s5, a curing and pouring stage; according to the processing method convenient for recycling the waste fan blade material, the waste fan blades are respectively crushed into particles and fibers according to different application requirements, so that different requirements of building bricks, wallboard filling and concrete reinforcement are met, and the utilization efficiency and the application effect of the material are improved; meanwhile, the tensile strength and bending strength of the concrete can be remarkably improved and the mechanical property of the material can be improved by adding the fibrous material, and the toughness of bricks and wallboards can be improved and cracks can be reduced by adding the granular material, so that the impact resistance of the bricks and wallboards is improved.
Owner:中海巢(河北)新能源科技有限公司

Geopolymer concrete based on waste concrete micro powder and preparation device and method

The invention discloses geopolymer concrete based on waste concrete micro powder and a preparation device and method, and belongs to the technical field of building materials, the geopolymer concrete comprises a crushing system, a grinding device, a stirring device and a shaping device; the smashing system is used for smashing waste concrete to form waste concrete fragments and conveying the waste concrete fragments into the grinding device, and the grinding device is used for grinding the waste concrete fragments to form waste concrete micro powder. According to the invention, the waste concrete micro powder is used as a mixed material or admixture for replacing cement and reacts with water to generate hydrated calcium silicate gel and calcium hydroxide; the hydrated calcium silicate gel can bond the aggregate to form a compact structure with certain mechanical strength, and the calcium hydroxide can react with amorphous SiO2 and Al2O3 in the waste concrete micro powder to generate hydrated calcium silicate, hydrated calcium aluminate or hydrated calcium aluminosilicate; a series of problems caused by nowhere to stack a large amount of waste concrete are effectively solved.
Owner:ZHENGZHOU UNIV +1

Construction material assessment method and systems

Globally our environment comprises structures built to perform a meet different requirements including residential, commercial, retail, recreational and service infrastructure. Whilst millions of tons of construction materials are deployed annually the quality control procedures in many instances have not changed to reflect today's demands. Accordingly, it would be beneficial to provide construction companies, engineering companies, infrastructure owners, regulators, etc. with means to automated testing / characterization of construction materials during at least one of its manufacture, deployment in construction and subsequent infrastructure life. It would be further beneficial for such automated methods to exploit self-contained data acquisition / logging modules allowing them to be employed with ease at the different points in the life cycle of a construction material and / or construction project.
Owner:GIATEC SCIENTIFIC INC