302results about "Control apparatus" patented technology

The invention relates to the technical field of engineering construction control, in particular to a self-adaptive control method and system for a cement mixing pile, and the method comprises the steps: setting the slurry preparation ratio parameter of a slurry preparation barrel of a feeding hopper according to the working information of the cement mixing pile, and conveying the prepared slurry to a slurry storage barrel of a discharging hopper; collecting a slurry static pressure signal of a slurry storage barrel of the blanking hopper, and monitoring the load dynamic characteristics of a stirring motor of the blanking hopper in real time in the stirring process; the slurry spraying quality parameters of the slurry are analyzed, and when the slurry spraying quality parameters reach the preset feeding standard, the slurry is conveyed to a slurry spraying pipeline to be matched with a cement mixing pile for pile forming work; when the guniting quality parameter exceeds the interval of the feeding standard, a real-time matching error is obtained; and generating a ratio correction instruction to correct the pulping ratio parameters. According to the invention, the dynamic closed-loop control of the pile forming quality of the cement mixing pile under the complex geological condition is effectively realized, and the industry bottleneck that the traditional open-loop proportioning system cannot respond to the slurry state change in real time is broken through.

A concrete mortar mixing and stirring system belongs to the technical field of concrete production equipment. Aiming at the problems that an existing stirring system is difficult to accurately judge the mixing uniformity of concrete mortar and the quality is easily influenced due to excessive stirring or insufficient stirring, the system comprises a stirring tank, a vibration signal acquisition unit, a torque monitoring unit and a control unit, stirring blades in a stirring tank are driven by a motor, a vibration signal acquisition unit captures a tank body vibration signal, a torque monitoring unit detects the torque change of the motor, and a control unit decomposes the tank body vibration signal into a frequency domain signal and extracts a preset aggregate collision vibration frequency band energy value to generate a vibration energy sequence; and analyzing the torque change fluctuation intensity to generate a torque variation coefficient sequence, calculating a correlation coefficient sequence of the two, generating an adaptive shutdown threshold by a sliding time window, and cutting off a motor power supply when the correlation coefficient sequence is continuously lower than the threshold for a preset number of times. The device is mainly used for automatic stirring control of concrete mortar, and precise starting and stopping of the stirring process are achieved.

Apparatus for real time water content and water cement monitoring on a ready-mix concrete truck includes at least one real time moisture measurement module or sensor configured tosense continuous real time moisture measurements of a batch of wet cement loaded into a rotating drum of a ready-mix concrete truck; andprovide signaling containing information about the continuous real time moisture measurements sensed.The apparatus may include either a hatch door of the rotating drum of the ready-mix concrete truck, or the rotating drum of the ready-mix concrete truck, or the ready-mix concrete truck itself.

The utility model relates to the technical field of constructional engineering, and discloses structural gap grouting equipment for constructional engineering construction, which comprises a base, a grouting mechanism is arranged at the top of the base, the grouting mechanism comprises a box body and a pump machine, the box body and the pump machine are both fixedly connected with the base, the input end of the pump machine is communicated with the base, and the output end of the pump machine is communicated with the base. The output end of the pump machine communicates with a grouting pipe through a hose, and a moving mechanism is arranged in an inner cavity of the base. By arranging the grouting mechanism, slurry condensation can be avoided, a grouting pipe can be conveniently used for grouting by opening a pump, the device is convenient to move by arranging the moving mechanism, a user can conveniently push the device by pushing a handle, the grouting pipe can be fixed by arranging the adjusting mechanism, and the grouting pipe can be driven to rotate by opening a third motor. The grouting direction can be adjusted conveniently, the height of the grouting pipe can be adjusted by starting the first motor, grouting can be conducted on ceilings, floors and vertical joints, and use is convenient.

The invention relates to the technical field of building construction equipment, in particular to a concrete mixing device with movable blades, which comprises a mixing drum, a mixing shaft, a vibrating screen component and an adjusting mixing component, the mixing shaft is arranged in the mixing drum, and the adjusting mixing component is mounted on the mixing shaft through a hinge structure. The angle and the length of the blade can be adjusted by adjusting the stirring assembly; the vibrating screen component is arranged at the top of the stirring barrel and can pretreat raw materials and remove caked impurities; by adjusting the stirring assembly, stirring dead angles can be eliminated, the concrete stirring uniformity is improved, material segregation is reduced, and the stirring efficiency is improved.

The invention relates to the field of flow-state solidified soil, and discloses flow-state solidified soil prepared from construction waste, preparation equipment and a preparation method. The pre-dehydration module is used for controlling the water content of discharged materials to be less than or equal to 14%; the system further comprises a main drying system, an auxiliary material adding device, a water adding device and mixing equipment. The main drying system comprises a high-temperature drying area, a high-temperature buffering area and a heat preservation discharging area which are arranged in the vertical direction, materials treated by the pre-dehydration module are lifted into the high-temperature drying area through lifting equipment, the main drying system comprises at least two sets of material conveying belts, and a plurality of hot air openings are evenly formed in the top of the high-temperature drying area; an inlet of the hot air pipe is communicated with an air cavity heated by a heat source; a recovery channel communicating with the portion, close to the bottom, of the heat preservation discharging area is arranged on one side of the main drying system, and an obliquely-arranged dust baffle is arranged in the recovery channel. According to the invention, the problems of fluctuation of construction waste sources and large change of material moisture content in the prior art are solved.

The invention belongs to the technical field of the Internet of Things and automatic control, and provides a concrete mixing control system and method based on the Internet of Things, and the system comprises a data collection unit which is used for obtaining key state data in the mixing process; the process parameter library is used for storing index parameter information according to a concrete mark-working condition parameter-process parameter three-level index structure; the intelligent control unit is used for receiving stirring parameter setting information input by a user, querying corresponding index parameter information from a process parameter library according to the stirring parameter setting information, and correcting the index parameter information based on the key state data to obtain to-be-executed parameters; and the execution unit is used for generating a first action execution signal to the corresponding target execution member according to the to-be-executed parameter, so that the target execution member executes a feeding and / or stirring action based on the first action execution signal. The scheme is enabled based on the Internet of Things, and the control precision, the control efficiency and the intelligent degree of the control link are improved.

The utility model discloses a continuous batching device for cement production, which comprises a conveying auger and a plurality of distributing tanks, the distributing tanks are all arranged above the conveying auger, the discharge ends of the distributing tanks are respectively connected with the conveying auger, the outlet end of the conveying auger is provided with a discharge chute, the lower end of the discharge chute extends into a mixing roller, and the lower end of the mixing roller is connected with the conveying auger. The utility model relates to the technical field of cement production, various ingredients are put into the mixing roller through the discharge chute, the driving control assembly is used for realizing rotation control on the mixing roller, various raw materials are thrown up by the lifting plate, and the mixing roller is arranged on the rack along the inclined direction and is connected with the rack through the rotary support member. Therefore, various raw materials are mixed in the material mixing roller, the rotating direction of the reverse material raising assembly is opposite to the rotating direction of the material mixing roller, the impact stirring effect on the various raw materials is further enhanced, and material mixing is more uniform.

The invention discloses crack self-monitoring concrete which comprises a concrete matrix, a differential electrode pair, an acoustic emission sensor array, an embedded temperature and humidity sensor and a multi-scale conductive network, the concrete matrix is concrete prepared from a cementing material, water, a fine aggregate, a water reducing agent, a conductive coarse aggregate, a hybrid fiber system, a nano conductive filler and a polymer interface reinforcing agent; the differential electrode pair comprises a tension area electrode and a compression area electrode; the embedded temperature and humidity sensor and the acoustic emission sensor array are arranged on the surface of concrete or in the concrete; the multi-scale conductive network is distributed in the concrete matrix; the invention further discloses a preparation method of the crack self-monitoring concrete and a crack self-monitoring method. The crack self-monitoring concrete is sensitive in resistance change response during stress, obvious in signal sudden change during fracture, sensitive and reliable in crack monitoring and low in false alarm rate, and can provide early warning time windows of different levels for structure maintenance and emergency decision.

The invention relates to the field of UHPC stirring machine control, in particular to a constant-power automatic speed regulation control system and method for UHPC stirring, the operation process of a UHPC stirring machine is divided into a plurality of process stages, each stage corresponds to different frequencies, rotating speeds and operation time, accurate control over the rotating speeds is achieved, and on the premise that the power is constant, the speed regulation speed of the UHPC stirring machine can be accurately controlled. The rotating speed is flexibly adjusted to meet the requirements of different stirring stages of UHPC, the mixing quality is guaranteed, efficient utilization of energy is achieved, a constant-speed stirring machine is changed into a variable-speed intelligent stirring machine through multi-section speed control of the frequency converter, energy is saved by 30% or above, and the quality and productivity of UHPC products are remarkably improved through process-level rotating speed matching.

A system includes a processing circuit configured to receive data from a sensor of a vehicle. The data includes one or more operational characteristics including at least one of a first operational characteristic indicating that a concrete mixture is being dispensed via a chute of the vehicle or a second operational characteristic indicating that the concrete mixture has stopped being dispensed via the chute. The processing circuit is also configured to receive a first time stamp responsive to receiving the first operational characteristic. The processing circuit is also configured to provide the first time stamp to at least one of a user device or a remote computing system.

An apparatus (100) for the production of a plaster slurry is described, the apparatus (100) comprising a mixer (102) for mixing at least plaster and water to form a plaster slurry, the mixer (102) comprising an outlet conduit (122), a foam generator (106) for mixing at least air, a foaming agent and water to produce a foam, the foam generator (106) in fluid communication with the mixer (102) via a fluid pathway (116) comprising a foam conduit (117); and a mass flow meter (124), wherein the mass flow meter (124) is configured to measure the density and mass flow rate of the foam within the foam conduit (117) or the plaster slurry within the outlet conduit (122). Additionally, a method of manufacturing a plaster slurry is described.

The present invention allows for better control over strength in concrete mixes and mix designs, while minimizing the over-use of cement and promoting sustainability within the industry. Disclosed are novel method and system which employ a diagnostic delta data (DDD) curve, or, in other words, data that displays a curvilinear relationship when plotted on a visual graph, as obtained by considering the differences (e.g., subtractive differences or ratios) as between (i) target slump and target (or maximum) water content, and (ii) slump and water content values as determined using an automated slump monitoring system which measures slump and water content in the concrete mix during delivery. This DDD curve can then be compared to monitored delta slump and delta water content for later or other deliveries, such that adjustments can be made to the concrete mix or mix design, in a manner that encourages avoidance of cement over-dosing or over-prescription.

The invention belongs to the technical field of building construction, and particularly provides a device for cooling concrete coarse aggregate by using cooling water, which comprises an aggregate storage bin, a temperature sensor, a weight sensor and a control unit, the top of the aggregate storage bin is provided with a water inlet and a feed inlet, the bottom of the aggregate storage bin is communicated with a water collecting device, and a water filter screen and a baffle are mounted in the aggregate storage bin; temperature sensors are mounted in the water inlet, the feed port and the water collecting device, weight sensors are mounted on the baffle and in the water collecting device, and the control unit comprises a heat exchange kinetic model and a water content calculation model. The concrete aggregate cooling device can conveniently cool concrete aggregate, can measure aggregate delivery temperature and moisture content data, realizes conversion from passive cooling to predictive intelligent control, effectively controls concrete mold entering temperature, reduces cracks caused by hydration heat, and improves mass concrete construction quality and structural safety. The invention also provides an operation method of the device for cooling the concrete coarse aggregate by using the cooling water.

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.

The invention discloses a method for preparing regenerated planting soil from muck. The method comprises the following steps of feeding and screening, weighing and metering, mixed feeding, primary crushing and mixing, secondary crushing and mixing and finished product discharging. The equipment for preparing the regenerated planting soil from the muck comprises a feeding device, a screening device, a belt conveyor assembly with a scale, a primary crushing and mixing device, a secondary crushing and mixing device and a finished product belt conveyor, the feeding device conveys dry soil, wet soil and humus soil into the screening device, and the screening device conveys the screened dry soil and wet soil to the belt conveyor assembly with the scale; the primary crushing and mixing device receives dry soil, wet soil and humus soil, the dry soil, the wet soil and the humus soil enter the secondary crushing and mixing device after being subjected to primary crushing and mixing, finished planting soil is obtained through crushing and mixing, and the finished planting soil belt conveyor is used for receiving and transporting the finished planting soil output by the secondary crushing and mixing device. The resource utilization rate of the muck is increased, and the stacking of the muck and the pollution to the environment are reduced.

The invention relates to the technical field of intelligent manufacturing control, in particular to an air cooling control method and system for multi-aggregate pre-cooling. According to the scheme provided by the invention, classified and bin-divided independent pre-cooling is performed according to different aggregate particle sizes and pre-cooling characteristics, so that the cooling effect is good, the pre-cooling time is saved, and the working efficiency is improved. Furthermore, through periodic dynamic pre-cooling control and adjustment, in combination with real-time monitoring of the aggregate temperature of each bin and dynamic calculation of required cooling capacity distribution air cooling, synchronization of the cooling process of each aggregate is ensured, and the pre-cooled aggregates with different particle sizes and different characteristics synchronously reach the preset delivery temperature within the target time. Meanwhile, the scheme of the invention has good robustness for interference factors such as initial temperature fluctuation of the aggregate, environment temperature change and the height of the stock bin position, can automatically adjust the distribution strategy, and keeps the stability of the pre-cooling effect.

This invention discloses a curing agent slurry preparation device, a curing agent slurry preparation method, and a fluidized solidified soil production method. In the preparation method, a weight sensor collects the weight change curve in real time during auger feeding, identifies the excess material discharge, and calculates the correction value for the next batch's shutdown advance. Water is injected and preliminary mixing is performed. The slurry is injected into the lower mixing chamber. After adjustment according to the correction value, the next batch is prepared. During the lower mixing, the torque of the second agitator is collected, a rheological curve is fitted, and the homogeneity is determined to be up to standard after the torque fluctuation rate is below a threshold and maintained for a set time, at which point the material is discharged. The upper and lower layers operate alternately in parallel cycles. The fluidized solidified soil production method of this invention includes: excavating a mud pit nearby and mixing it into mud; preparing the curing agent slurry using the above method; and pumping the slurry to the mud pit and mixing it into fluidized solidified soil. This invention employs a "two-step" process to prepare the curing agent and fluidized solidified soil in stages, avoiding long-distance transportation of the finished solidified soil and improving construction efficiency and the stability of the solidified soil quality.

This invention relates to the field of concrete machinery equipment control technology, and discloses an automatic compensation control system and method for the feed flow of a concrete mixer truck. The system includes a data acquisition module, a state calibration module, a signal decoupling module, a parameter calculation module, and a compensation execution module. The system synchronously acquires the weight signal at the fixed end, the transient pressure signal at the moving end, and the absolute phase angle signal; it separates and extracts the low-frequency baseband pressure signal and converts it to obtain a real-time angular domain pulse signal; based on this, it calculates the chute retention index, volume tolerance parameter, and material transfer leakage prevention coefficient; finally, based on the chute retention index superimposed with the compensation speed increment, it uses the volume tolerance parameter for amplitude limiting constraint, and cuts off the feeding action when the leakage prevention coefficient exceeds the limit. By integrating multi-source physical parameters and dynamically and adaptively adjusting the feed speed of the mixing drum, the system effectively solves the problems of material retention and accumulation at the chute and late-stage overflow, and automatically interlocks protection in case of leakage, improving feeding efficiency and safety.

A mixer and a method for the mixing of a cementitious slurry, configured to calculate the volume of the cementitious slurry in the mixer in order to produce an improved mixing process and / or an improved cementitious product. The mixer comprises a sensor to measure a parameter of the slurry in the mixer that is used to calculate the volume of slurry in the mixer.

The utility model discloses modularized aerated concrete block rapid production equipment, and particularly relates to the technical field of aerated concrete production, the modularized aerated concrete block rapid production equipment comprises an equipment body, a transfer box and a modularized stock bin, the transfer box is arranged at the upper end of the equipment body, a liquid level sensor is arranged on the left side of an inner cavity of the transfer box, and a pipeline box is arranged at the upper end of the transfer box; the modular stock bin is arranged on the upper end face of the pipeline box; according to the utility model, each mixed material is allowed to be independently stored through the design of the modularized stock bin, different types of materials are separately stored, and the use amount and the mixing proportion of each material can be more quickly controlled by combining the first electric valve and the solid flow meter, so that the consistency of products is improved, and the production efficiency is improved. According to the concrete mixing device, all materials are added more quickly and accurately, so that the quality and mixing efficiency of concrete are improved, premixing of water and solid materials is performed in the transfer box, intermittent small-batch pre-blending is performed in the transfer box according to the proportion, and the materials of each batch can be accurately controlled.

It is disclosed a system for extruding cementitious material comprising: - at least one pump (30, 34) of cementitious material; - at least one pump (31) of additive for cementitious material; - a mixing chamber (10) comprising a cementitious material inlet (11) and an inlet (12) of additive for cementitious material; and being configured to mix the cementitious material with the additive for cementitious material forming a printing composition; - an extruder (20) for extruding at least one layer of the printing composition; - a control unit; wherein the extruder (20) comprises at least one temperature sensor (T1), and the mixing chamber (10) comprises at least one pressure sensor (P1) at the cementitious material inlet (11), each sensor (T1, P1) being operatively connected to the control unit, which is configured to adjust the amount of additive for cementitious material in the printing composition. It is also disclosed a method for extruding cementitious material and a system for additive manufacturing of a cementitious material-based structure.

The utility model discloses a concrete mixing moisture control system which comprises a bearing frame and a moisture control assembly, a concrete mixer is arranged at the upper end of the bearing frame, the moisture control assembly is located at the upper end of the concrete mixer, the other end of the moisture control assembly is connected to one end of the bearing frame, and one side of the bearing frame is connected with an external connection plate in an attached mode. A feeding hopper is slidably connected to the upper end of the external connecting plate, an embedded ring is fixedly mounted on the surface of one end of the feeding hopper, a hollow hole is formed in the upper surface of the middle section of the feeding hopper, and a microwave moisture sensor is arranged in the hollow hole. According to the utility model, the moisture control accuracy during concrete mixing is improved, errors can be reduced, and the influence on the efficiency caused by manual water adding is reduced by depending on the traditional artificial experience and a regular sampling inspection method.

The invention discloses a forming device for manufacturing cement products by using building waste, and relates to the technical field of cement product forming, the forming device comprises a placing frame, a hydraulic rod is mounted at the top end of the placing frame, a male die is fixedly connected to the output end of the hydraulic rod, a female die is mounted on the side wall of the placing frame, and the female die is connected with the male die in an embedded manner; the cement product quality control device has the advantages that a mixture can be subjected to self-inspection, and the mixture produced by a factory is not completely considered, so that the specific quality of the mixture can be determined, the quality of a cement product can be controlled, meanwhile, an abnormal state can be warned, and the cement product quality control device is suitable for popularization and application. The device can automatically give an alarm, so that the device can be adjusted in time, the forming process is not easy to break down, the aggravation of equipment loss is avoided, automatic humidification adjustment can be performed when a mixture is too dry, the filling property, compactness and demolding property of the mixture can be changed, and the product quality and the equipment stability are ensured.

The invention discloses a cement batching station material interruption control method and system, and the method comprises the steps: obtaining a feedback value fed back by each batching scale in a cement batching station, determining whether the cement batching station has potential material interruption or not according to the feedback value and a preset ratio value, and when the cement batching station has potential material interruption, determining whether the cement batching station has potential material interruption or not. The vibrating control unit drives the vibrating motor to vibrate the cone part of the stock bin in the cement batching station, so that the problem of material breakage of the system is solved, vibration effect feedback is monitored in real time after vibrating, and vibrating parameters are dynamically adjusted, so that the vibrating effect is optimized, and the working efficiency is improved. The system solves the technical problems of feedback lagging, fixed rapping parameters and low judgment precision of traditional material breaking control, is suitable for intelligent material breaking control in a cement production batching link, and has important industrial application value.

The invention relates to the technical field of stirrers, and discloses an improved concrete stirring device which comprises a stirrer shell and a pair of stirring shafts, a pair of arc-shaped shells are fixed to the arc-shaped outer wall of the stirrer shell, heat exchange cavities are formed by the arc-shaped shells and the outer wall of the stirrer shell, and the bottom of each heat exchange cavity is connected with a branch water inlet pipe; the first water pump is communicated with the first layer of the water tank through a first pipe; a water outlet pipe is connected to the top of the heat exchange cavity and communicates with the second layer of the water tank. A heat exchange cavity is formed in the stirring shaft, and the two ends of the stirring shaft are each rotationally connected with a water inlet and outlet connector; the water inlet and outlet joints on the front side are connected with a second pipe; the second pipe is communicated with the second layer through a second water pump and a third pipe; the water inlet and outlet connectors on the rear side are connected with a fourth pipe which is communicated with the third layer of the water tank. Through double waste heat recovery and graded heat storage of the shell and the stirring shaft, stepped heating of mixing water is achieved, and the concrete production requirement in winter is met.

Described herein are novel construction materials and construction material compositions, processes, and equipment for manufacturing press-formed biocement and bioconcrete products and construction materials. In some embodiments, the methods include combining aggregate particles with a first measured dose of at least one biological organism or enzyme and a first measured dose of cementation reagents in a first mixer, mixing the contents of the first mixer and reacting the first measured dose of the cementation reagents in the presence of the first measured dose of the at least one biological organism or enzyme to form a biocement which binds to the surfaces of the aggregate particles, thereby increasing the size of the particles to yield a biocement coated aggregate.

The utility model relates to the technical field of building construction, and discloses concrete raw material stirring equipment for building construction, which comprises a lower tank body, an upper tank body, a connecting mechanism, a discharging mechanism and a stirring mechanism, the upper end of the lower tank body is provided with the connecting mechanism, the connecting mechanism comprises four clamping rods, the front end of the lower tank body is provided with the discharging mechanism, and the lower end of the lower tank body is provided with the stirring mechanism. The discharging mechanism comprises a threaded rod, a stirring mechanism is arranged in the upper tank body, the stirring mechanism comprises two separation discs and three planet wheels, and a protection shell is fixedly connected to the center of the upper end of the upper tank body. According to the stirring device disclosed by the utility model, a sun gear is driven to rotate by a servo motor in the stirring mechanism, and a fixed-point stirring rod and a moving stirring rod are used for stirring by utilizing meshed connection among a planet gear, the sun gear and a gear ring, so that the stirring capacity is enhanced; and the connecting blocks are slidably connected with the fixing blocks, so that the tank body is conveniently disassembled for cleaning.

A method and system for detecting and regulating workability of concrete in a concrete mixer truck are disclosed in the present disclosure. A rheological shear device and a temperature testing device are installed inside a drum of the concrete mixer truck. Rotation of the drum is used to drive a shear rod to shear in the concrete, which can directly test rheological properties of the concrete, and obtain work properties through a relationship between rheological properties and workability. A test is made before a concrete mixer truck leaves a factory. Rheological properties of the concrete are continuously measured during transportation, and change degree and change trend of the rheological properties are evaluated. An evaluation result is compared with a limiting value. When the limiting value is reached or exceeded, an alarm is immediately triggered and regulation of supplement admixtures is automatically performed.

The invention discloses a concrete mixing method based on an intelligent algorithm, and relates to the technical field of intelligent control, a multi-mode acoustic sensor array is installed at a key position of a mixer, audio and vibration signals in the mixing process are collected, and an initial acoustic feature sequence containing time domain and frequency domain features is constructed through preprocessing; and processing the sequence by adopting a time-frequency conversion algorithm to obtain a Mel-frequency spectrogram feature set, inputting the Mel-frequency spectrogram feature set into a pre-trained convolutional neural network, and outputting a normalized wrapping degree index in real time. An adjustment instruction is generated by comparing the index with a preset optimal threshold interval, if the index is lower than a lower limit, the stirring time is prolonged and the speed is increased, if the index is higher than an upper limit, stirring is terminated in advance, parameters are maintained in the interval, the index is dynamically adjusted to reach the standard, and the model is trained by a historical acoustic sample and a paste wrapping degree true value label obtained through weighting of an image method and a gravimetric method. And in combination with concrete performance detection result iterative optimization, threshold interval matching target performance is corrected, and corresponding computer equipment and a storage medium can realize the method.