Concrete conveying equipment for ultra-deep diaphragm wall pouring

Abstract

The invention discloses equipment for conveying concrete for pouring an ultra-deep diaphragm wall. The equipment comprises a material collecting bin for containing concrete from a canning vehicle; the camera shooting assembly is used for shooting a video of the concrete flowing out of the material collecting bin so as to obtain the concrete meeting the preset slump degree and expansion degree requirements; the material distributing bin is used for receiving the concrete flowing out of the material collecting bin and stirring the concrete; the fixed conveying device is used for conveying the concrete from the material collecting bin to the material distributing bin; and the plurality of distributing and conveying devices are used for simultaneously conveying the concrete flowing out of the distributing bin into the plurality of to-be-poured slotted holes so as to synchronously pour the plurality of slotted holes into a wall. According to the equipment, potential safety hazards are avoided in the concrete conveying process, concrete adhesion is avoided, the pouring volume of concrete in each groove hole can be automatically metered, the multiple groove holes can be poured at the same time, and the construction efficiency is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of water conservancy engineering technology, and in particular to a concrete conveying device for pouring 200mm deep ultra-deep anti-seepage walls. Background Technology

[0002] During the construction and pouring of cutoff walls, the concrete transportation process, especially for concrete used in the pouring of 200mm deep ultra-deep cutoff walls, is a crucial step. The existing concrete pouring and transportation processes suffer from the following problems:

[0003] I. Current methods of concrete pouring and transportation often involve reversing concrete mixer trucks onto a walkway to pour concrete into a relatively high aggregate bin. This method poses significant safety hazards. For example, due to the relatively steep slope of the walkway, the concrete mixer truck is at risk of slipping. Furthermore, the width of the walkway is limited by the available space, requiring a high level of driving skill from the driver. Improper operation could easily lead to accidents such as the mixer truck overturning, causing irreparable damage to the project.

[0004] In addition, the existing combination of walkways and aggregate bins for concrete pouring of the anti-seepage wall can only meet the pouring of the same trench, and cannot meet the simultaneous pouring of multiple trench sections or trenches over long distances. If multiple trench sections are poured at the same time, multiple walkways need to be arranged, and concrete mixer trucks will also travel on multiple routes in the work area, which will affect the order of the work area and greatly increase the safety hazards in the work area.

[0005] Second, for the pouring of 200m-class ultra-deep seepage barriers, high-strength concrete of grade C45 or even C55 is used. The water-cement ratio of this type of concrete is much smaller than that of conventional concrete, so it is more viscous and easy to produce an adhesion effect. In addition, the concrete pouring time will last for about 50 hours, which will also increase the viscosity of the concrete. After the concrete adheres to the aggregate bin and solidifies, it is difficult to clean, which affects the efficiency of concrete pouring. Furthermore, the long pouring time can easily cause the operators to become complacent, increasing the safety risks.

[0006] Third, current concrete pouring methods often rely on manual control of the material discharge rate, which cannot guarantee uniform and continuous pouring. Furthermore, existing methods cannot determine whether parameters such as slump and spread of the concrete discharged from the concrete mixer truck meet construction requirements. The current concrete pouring process also cannot accurately determine the actual volume of concrete poured, relying solely on the amount delivered to the concrete mixer truck from the batching plant. However, the concrete delivery from the mixer truck is often insufficient, so the volume of concrete obtained from the batching plant is usually greater than the actual volume poured. This negatively impacts the assessment of pouring speed and trench quality during the concrete pouring process. Summary of the Invention

[0007] The purpose of this invention is to solve the above-mentioned problems and provide a concrete conveying device for ultra-deep seepage barrier wall construction. The device eliminates safety hazards during concrete conveying, prevents concrete adhesion, automatically measures the volume of concrete to be poured in each slot, and allows simultaneous pouring in multiple slots, greatly improving construction efficiency.

[0008] To achieve the above-mentioned objectives of the present invention, the present invention provides a concrete conveying device for ultra-deep seepage barrier wall construction, comprising: an aggregate bin for holding concrete from a tanker truck; a camera assembly for capturing video of the concrete flowing out of the aggregate bin to obtain concrete that meets preset slump and spread requirements; a distribution bin for receiving the concrete flowing out of the aggregate bin and mixing the concrete; a fixed conveying device for transporting the concrete from the aggregate bin to the distribution bin; and multiple diversion conveying devices for simultaneously conveying the concrete flowing out of the distribution bin to multiple pouring slots to simultaneously pour the concrete into the multiple slots to form a wall.

[0009] Preferably, the material distribution bin includes: a hollow, frustoconical bin body; multiple discharge ports spaced apart on the side wall of the bin body; sliding doors slidably disposed at each discharge port of the bin body; a mixing mechanism whose mixing plate extends from the bottom of the bin body into the bin body to mix the concrete inside the bin body; and multiple sliding door driving mechanisms for driving the multiple sliding doors to slide relative to the bin body to expose or close the discharge ports.

[0010] Preferably, the diversion conveying device includes: a diversion conveyor belt; a frame supporting the diversion conveyor belt; and multiple support legs disposed below the frame for supporting the frame; wherein the multiple support legs include fixed support legs with constant height and telescopic support legs with variable height.

[0011] Preferably, the frame includes a fixed frame and a movable frame detachably connected to the fixed frame, the fixed support legs are installed below the fixed frame, and the telescopic support legs are installed below the movable frame.

[0012] Preferably, the camera assembly includes: a shooting module for capturing video of concrete flowing out of the aggregate bin; a video processing module for processing the concrete video captured by the shooting module to obtain the current concrete slump and spread; and a determination module for comparing the current concrete slump and spread with the preset slump and spread of concrete that meet the requirements for pouring ultra-deep anti-seepage walls, and determining whether the current concrete slump and spread meet the preset concrete slump and spread requirements.

[0013] Preferably, the shooting module is mounted on the frame of the collection bin and aligned with the outlet of the collection bin.

[0014] Preferably, the video processing module includes: a thickness processing module for processing the concrete video captured by the shooting module to obtain concrete thickness information corresponding to the current concrete slump; and a diameter processing module for processing the concrete video captured by the shooting module to obtain concrete diffusion surface diameter information corresponding to the current concrete spread.

[0015] Preferably, it also includes: a weighing device for weighing and measuring the concrete conveyed on the diversion conveyor belt during the process of conveying concrete on the diversion conveyor belt, so as to determine the volume of concrete poured into the corresponding slot via the diversion conveyor belt.

[0016] Preferably, the weighing device includes: a weighing sensor for detecting the weight of concrete passing over it; a speed sensor for detecting the current operating speed of the diversion conveyor belt; and a processing module electrically connected to the weighing sensor and the speed sensor respectively; wherein the processing module receives the weight information detected by the weighing sensor and the speed information detected by the speed sensor, and obtains the weight of concrete passing on the diversion conveyor belt per unit time based on the received weight information and speed information, and performs cumulative calculation to determine the volume of concrete poured into the corresponding slot via the diversion conveyor belt.

[0017] Preferably, it also includes: a concrete volume comparison module that compares the current concrete volume with the preset concrete volume to determine whether the current concrete volume meets the preset requirements; and a conveyor belt control module that adjusts the running speed of the corresponding diversion conveyor belt when the current concrete volume does not meet the preset requirements.

[0018] Preferably, the surface of the component in contact with concrete is sprayed with an anti-stick coating to prevent concrete from adhering.

[0019] Compared with existing technologies, the concrete conveying equipment for ultra-deep seepage barrier wall construction of the present invention has the following advantages:

[0020] 1. The present invention relates to a concrete conveying device for ultra-deep seepage barrier wall construction. There are no safety hazards during the concrete conveying process, the concrete does not stick, multiple slots can be poured at the same time, and the concrete volume of each slot can be automatically measured, which greatly improves construction efficiency.

[0021] 2. This invention, by capturing video of concrete flowing from the aggregate silo, can obtain concrete that meets the preset slump and spread requirements for ultra-deep anti-seepage wall pouring, ensuring the quality of the trench. Concrete is transported via a conveyor belt, solving the safety hazards of using concrete mixer trucks to pour concrete onto walkways in existing technologies. Furthermore, concrete can be simultaneously transported to multiple trenches, making concrete transport safer, faster, and preventing material separation. This makes simultaneous pouring of multiple trenches possible, greatly improving construction efficiency and ensuring the quality of the poured concrete. Real-time weight measurement of the concrete during transport ensures the volume of concrete poured into each trench, guaranteeing construction quality. An anti-stick coating is applied to the surfaces of all components in contact with the concrete, effectively preventing concrete adhesion, facilitating cleaning, and ensuring the volume of concrete poured.

[0022] The present invention will now be described in detail with reference to the accompanying drawings. Attached Figure Description

[0023] Figure 1 This is a flowchart of the process of pouring an ultra-deep anti-seepage wall using the concrete conveying equipment of this invention;

[0024] Figure 2 This is a structural schematic diagram of the concrete conveying equipment for ultra-deep seepage-proof wall pouring of the present invention;

[0025] Figure 3 This is a schematic diagram of the material distribution bin of the present invention;

[0026] Figure 4 This is a partial structural schematic diagram of the material distribution bin of the present invention;

[0027] Figure 5 This is a schematic diagram of the sliding door drive mechanism of the present invention;

[0028] Figure 6 This is a first-view structural schematic diagram of a portion of the frame of the present invention;

[0029] Figure 7 This is a second-view structural schematic diagram of a part of the frame of the present invention;

[0030] Figure 8 This is a schematic diagram of the structure of the material collection bin of the present invention;

[0031] Figure 9 This is a schematic diagram of the camera component of the present invention;

[0032] Figure 10 This is a schematic diagram of a weighing device;

[0033] Figure 11 This is a schematic diagram of the conveyor belt control principle. Detailed Implementation

[0034] To address the safety hazards of existing conveyor systems for concrete feeding, the risk of segregation during concrete transport, and issues such as simultaneous pouring of concrete in multiple sections with unified material feeding, uncontrollable pouring speed, and inaccurate concrete quantity measurement, this invention provides... Figure 2 The equipment for conveying concrete for ultra-deep seepage barrier wall construction shown in the figure includes: an aggregate bin 1 for holding concrete poured from a concrete mixer truck; a camera assembly for capturing video of the concrete flowing out of the aggregate bin to obtain concrete that meets preset slump and spread requirements; a distribution bin 4 for receiving the concrete flowing out of the aggregate bin and mixing it; a fixed conveying device 3, using a belt conveyor, for transporting the concrete from the aggregate bin to the distribution bin; and multiple diversion conveying devices 6, also using belt conveyors, for simultaneously conveying the concrete flowing out of the distribution bin to multiple pouring slots to simultaneously pour the wall into multiple slots.

[0035] Specifically, the aggregate silo of this invention has a hollow, frustoconical structure that is wider at the top and narrower at the bottom. The top is the inlet, and the bottom is the outlet, with the outlet aligned with the loading end of the fixed conveying device. In the design, a support frame is installed below the aggregate silo to support it above the loading end of the fixed conveying device. Concrete for pouring ultra-deep seepage-proof walls, loaded in a concrete mixer truck, is poured into the aggregate silo from above and flows out from the outlet.

[0036] In order to determine whether the concrete flowing out of the aggregate bin meets the preset slump and spread requirements, and in order to determine whether it needs to be transported to the distribution bin or even the slot, this invention uses a camera component to capture video of the concrete flowing out of the aggregate bin to obtain concrete that meets the preset slump and spread requirements.

[0037] like Figure 9 As shown, the camera assembly of the present invention may include: a shooting module for shooting video of concrete flowing out of the aggregate bin, which employs a camera 2 capable of clearly capturing the instantaneous state of concrete flowing out of the aggregate bin, mounted on a crossbeam 1a of a support frame below the aggregate bin, the crossbeam being a beam whose extension direction is perpendicular to the running direction of the fixed conveyor belt; during installation, the camera can be flexibly adjusted in position and angle as needed to adapt to shooting requirements via a camera bracket, or it can be fixed in one position; a video processing module for processing the concrete video captured by the shooting module to obtain the current concrete slump and spread; and a determination module for comparing the current concrete slump and spread with the preset slump and spread of concrete that meet the requirements for pouring ultra-deep anti-seepage walls, and determining whether the current concrete slump and spread meet the preset concrete slump and spread requirements.

[0038] In order to obtain the current concrete slump and spread, the video processing module of the present invention includes: a thickness processing module for analyzing and processing the concrete video captured by the shooting module to obtain a concrete thickness image and thickness information corresponding to the current concrete slump; and a diameter processing module for processing the concrete video captured by the shooting module to obtain a concrete diffusion surface diameter image and diameter information corresponding to the current concrete spread.

[0039] After the camera captures video of concrete flowing from the aggregate bin and collapsing onto the fixed conveyor belt due to its own weight, the video is transmitted to the thickness processing module and the diameter processing module. These two modules perform image processing on the received video images, such as grayscale conversion, noise reduction, and filtering, to identify the concrete areas in the video and separate them from the background. The thickness processing module acquires an image of the concrete thickness after it has flowed from the aggregate bin and fallen onto the fixed conveyor belt, after a preset collapse time (determined based on concrete composition and experience). This concrete thickness image corresponds to the current slump of the concrete. The diameter processing module acquires an image of the diameter of the diffusion surface formed after the concrete collapses, which corresponds to the current expansion of the concrete.

[0040] To determine whether the slump and spread of the concrete flowing from the aggregate bin meet the preset requirements, the determination module of this invention includes a thickness determination module and a diameter determination module. The thickness determination module searches a concrete thickness image representing the current slump obtained by the thickness processing module against multiple preset concrete thickness images representing different slumps in a thickness database. It finds the image with the closest thickness for concrete of the same composition and compares the current concrete thickness image with the thickness in the found preset image. If the difference after comparison is within a preset range, the current slump of the concrete is determined to meet the preset slump requirements; otherwise, the difference is determined to not meet the preset slump requirements. The diameter determination module can search the concrete diffusion surface diameter image obtained by the diameter processing module, which represents the current spread of the concrete, with multiple pre-set concrete diffusion surface diameter images in the diameter database that represent different spreads of the concrete. It finds the image with the closest diffusion surface diameter for concrete of the same composition, and compares the current concrete diffusion surface diameter image with the diffusion surface diameter in the found pre-set concrete diffusion surface diameter image. If the difference after the comparison is within a preset range, it is determined that the current spread of the concrete meets the preset spread requirement. If the difference after the comparison is not within the preset range, it is determined that the current spread of the concrete does not meet the preset spread requirement.

[0041] The thickness database contains pre-set correspondences between images of concrete with different components and the thickness of each concrete after a preset time of collapse due to its own weight. The diameter database contains pre-set correspondences between images of the diffusion surface diameter formed by the diffusion of various concrete components after a preset time of collapse due to its own weight. The correspondences between concrete with different components and the thickness images, as well as between concrete with different components and the diffusion surface diameter images, were obtained through a large amount of experimental data and practical engineering experience before formal construction.

[0042] After determining whether the concrete falling onto the fixed conveyor belt meets the preset slump and spread requirements, the concrete in and out of the aggregate bin is processed according to the comparison results: concrete that meets the preset slump and spread requirements continues to the next conveying and pouring operation; concrete that does not meet the preset requirements is stopped from being discharged from the tanker truck into the aggregate bin, and the concrete in the tanker truck, the aggregate bin, and the concrete flowing onto the fixed conveyor belt is pulled away for disposal.

[0043] This invention utilizes an AI-powered camera system installed outside the aggregate silo to recognize the slump and spread of concrete. By analyzing the slump and spread of the concrete as it is released from the truck onto the fixed conveyor belt below the silo, the actual (current) slump and spread of the concrete are obtained. This ensures that the concrete used for pouring meets the preset slump and spread requirements, effectively guiding concrete pouring and reducing the risks of pipe blockage and other problems caused by concrete performance issues. This is beneficial for improving the quality of 200m-class ultra-deep cutoff walls. Furthermore, the analysis results can provide feedback on the concrete production process. For example, if the current slump or spread of the concrete is detected to be unsatisfactory, the control system can adjust parameters such as the concrete mix proportions, water usage, or mixing time to ensure that subsequent concrete production meets the requirements.

[0044] The slump and spread analysis results of this invention can be output in an intuitive way, such as overlaying the current slump and spread values ​​of the concrete onto the user's video screen, along with prompts indicating whether the preset slump and spread requirements are met. For example, if the current slump or spread of the concrete does not meet the requirements, an alarm signal is issued to notify the operator for manual intervention and inspection, preventing substandard concrete from entering the ultra-deep anti-seepage wall pouring process. Furthermore, the results data can be stored in a database for subsequent querying and statistical analysis. Additionally, it can communicate with a remote access system, allowing operators to view the system's operating status and analysis results from their office or other locations via a browser or mobile application, enabling remote monitoring and management.

[0045] When the concrete flowing from the aggregate bin meets the preset slump and spread requirements, it is continuously conveyed to the distribution bin by a fixed conveyor. This fixed conveyor is a belt conveyor, consisting of a fixed conveyor belt and a motor 32 for driving the belt in a circular motion. The structure of the belt conveyor is similar to existing technology, and its structure will not be described in detail here. During assembly, the camera is positioned between the outlet of the aggregate bin and the upper surface of the fixed conveyor belt of the fixed conveyor, preferably close to the upper surface of the fixed conveyor belt. In the design, the fixed conveyor is lower at the front and higher at the back; that is, the feeding end on the aggregate bin side is lower than the discharging end on the distribution bin side. Correspondingly, the support column 31 on the feeding end side is lower than the support column on the discharging end side, so that the discharge end is directly above the distribution bin. The fixed conveyor can refer to the structure of existing belt conveyors.

[0046] Concrete meeting preset slump and spread requirements is conveyed by a fixed conveyor belt to a distribution silo, which can mix and simultaneously output the conveyed concrete. For example... Figures 2-5 As shown, the material distribution bin 4 of the present invention includes: a hollow frustoconical bin body; a plurality of discharge ports 41 spaced apart on the side wall of the bin body; sliding doors 42 slidably disposed at each discharge port of the bin body; a mixing mechanism 5 whose mixing plate 51 extends from the bottom of the bin body into the bin body to mix the concrete in the bin body; and a plurality of sliding door driving mechanisms (not shown in the figure) for driving the plurality of sliding doors to slide relative to the bin body to expose or close the discharge ports.

[0047] Specifically, the lower part of the silo body of the present invention is supported by multiple silo columns 44, and a stirring motor 52 of the stirring mechanism is set at the bottom of the silo body. The output shaft of the stirring motor passes through the center of the bottom plate of the silo body from bottom to top, and multiple stirring plates are installed at equal angles on the part located inside the silo body. When the output shaft rotates, it drives the stirring plates to rotate inside the silo body to continuously stir the concrete inside the silo body.

[0048] To enable simultaneous pouring of multiple slots, multiple discharge ports are spaced apart on the sidewalls of the silo. The lower edge of each discharge port is flush with the upper surface of the silo's bottom plate. Near each discharge port is a sliding door slidably connected to the silo. Driven by a sliding door drive mechanism, the sliding door moves circumferentially relative to the silo's sidewall to expose or close the discharge port as needed. The sliding door drive mechanism can be electric, hydraulic, or pneumatic, and is mounted on the outer wall or bottom plate of the silo. For example, two guide rails 43 (which can be LM rolling guide rails) are respectively installed on the sidewall above the discharge port and on the bottom plate below the discharge port. The upper and lower parts of the sliding door are slidably connected to the two guide rails via sliders. The connection between the sliding door drive mechanism and the sliding door is readily apparent to those skilled in the art and will not be described in detail here. During the design process, each sliding door can operate independently. The sliding door and the discharge port must fit tightly together, and the sliding door must be larger than the discharge port to prevent concrete from flowing out of the gap between them. The larger the exposed outlet after the sliding door moves relative to the outlet, the greater the discharge speed and the greater the quantity of concrete discharged from the distribution bin. In application, the distance the sliding door moves relative to the outlet can be determined according to the actual needs of the slot pouring.

[0049] In order to simultaneously deliver the concrete flowing from the distribution silo to different slots, this invention provides a diversion and conveying device 6 at the corresponding position of each sliding door (e.g., ...). Figure 2 Three diversion conveyor devices are shown. Each diversion conveyor device has the same structure, such as... Figure 2 , Figure 6 , Figure 7 As shown, each diversion conveyor also employs a belt conveyor, including: a diversion conveyor belt 63; a frame supporting the diversion conveyor belt; multiple support legs located below the frame to support the frame, including fixed support legs with constant height and telescopic support legs with adjustable height; and a motor for driving the diversion conveyor belt to circulate in a ring on the frame. The diversion conveyor is lower at the front and higher at the back, meaning the feeding end on the side of the distribution bin is lower than the discharging end on the side that approaches the slot.

[0050] The frame of the diversion and conveying device includes a fixed frame 61 and a movable frame 62 detachably connected to the fixed frame. Fixed support legs are installed below the fixed frame, and telescopic support legs 7 are installed below the movable frame. The height of the movable frame can be adjusted by the telescopic support legs. The telescopic support legs can be driven to extend and retract by a hydraulic cylinder. For example, the telescopic support legs include an upper support leg 73 fixedly installed on the movable frame and a lower support leg 71 located below the upper support leg. The upper support leg is connected to the telescopic rod of the hydraulic cylinder 72, and the cylinder body of the hydraulic cylinder is fixedly connected to the lower support leg.

[0051] Furthermore, to ensure that the diversion conveyor can deliver concrete to the pouring guide pipe at the corresponding slot according to the actual situation, that is, the discharge end of the diversion conveyor belt is located directly above the slot, the movable frame of this invention also adopts a telescopic frame that can adjust the length of the diversion conveyor belt within a small range. In the design, the movable frame includes a first movable frame and a second movable frame that can extend and retract relative to the first movable frame. The first movable frame is fixedly connected to the cylinder body of the hydraulic cylinder 8, and the second movable frame is fixedly connected to the telescopic rod of the hydraulic cylinder. The second movable frame and the fixed frame are fixedly connected together by bolts, etc. The second movable frame can rotate relative to the fixed frame at a certain angle and is locked after the relative angle between the two is determined.

[0052] In order to ensure that the supporting rollers 92 of the supporting assembly 9 installed between the upper and lower frames of the movable frame can provide good support for the diversion conveyor belt before and after the length of the diversion conveyor belt changes, the present invention also provides multiple springs 91 between the upper and lower frames, so that the supporting rollers can adapt to the diversion conveyor belt through the automatic extension and contraction of the springs.

[0053] In addition, the diversion and conveying device of the present invention may also have a belt tension adjustment mechanism, which can adopt existing technology mechanisms, and its structure will not be described in detail here.

[0054] The frame of the diversion conveyor device of this invention can be adjusted in height and length. The height of the diversion conveyor belt is adjusted by the extension and retraction of the hydraulic cylinder controlling the height, and the length of the diversion conveyor belt is adjusted by the extension and retraction of the hydraulic cylinder controlling the length. By adding a speed controller to the motor that powers the diversion conveyor belt, the conveying speed of the diversion conveyor belt can be automatically adjusted. This allows the equipment of this invention to adapt to various site conditions and automatically adjust its height and length according to actual conditions, thereby meeting the needs of various types of anti-seepage wall pouring and greatly reducing the labor costs in the process of pouring 200m-class ultra-deep anti-seepage walls.

[0055] In order to accurately determine the actual volume of concrete poured into the corresponding slot by each diversion conveyor belt, the present invention also includes: a weighing device for weighing and measuring the concrete conveyed on the diversion conveyor belt during the concrete conveying process, so as to determine the volume of concrete poured into the corresponding slot by the diversion conveyor belt.

[0056] Weighing devices can be adopted as follows: Figure 10The structure shown includes: a load cell for detecting the weight of concrete passing over it, which can be installed at a relatively stable point on a fixed or movable frame (not shown in the figure), below the diversion conveyor belt and above the idler rollers, and can be in contact with the diversion conveyor belt; a speed sensor for detecting the current operating speed of the diversion conveyor belt, which can obtain the conveyor belt operating speed by detecting the motor speed or directly detecting the conveyor belt speed; and a weight processing module electrically connected to the load cell and the speed sensor respectively. The weight processing module receives the weight information detected by the load cell and the speed information detected by the speed sensor, processes the relevant information, obtains the weight of concrete passing on the diversion conveyor belt per unit time, and performs cumulative calculation and conversion of the concrete weight to determine the volume of concrete poured into the corresponding slot via the diversion conveyor belt.

[0057] In addition, such as Figure 11 As shown, the weighing device may further include: a concrete volume comparison module that compares the currently poured concrete volume with a preset concrete volume to determine whether the currently poured concrete volume meets the preset requirements; and a conveyor belt control module that adjusts the running speed of the corresponding diversion conveyor belt when the currently poured concrete volume does not meet the preset requirements. Furthermore, it may also include a sliding door sliding control module for adjusting the moving distance of the sliding door relative to the discharge port, which controls the sliding door drive mechanism to perform corresponding actions to drive the sliding door to achieve the required moving stroke.

[0058] This invention incorporates a weighing sensor installed beneath the diversion conveyor belt. When concrete is transported on the conveyor belt and passes above the weighing sensor, the conveyor belt and concrete exert downward pressure on the sensor. The weighing sensor converts these pressure signals into electrical signals, which are then analyzed and calculated by a weight processing module to determine the weight of the concrete. Based on this weight, the volume of concrete is calculated. The volume of concrete can then be used to determine the pouring speed, thereby adjusting the pouring rate. In other words, by detecting the volume of concrete transported by the diversion conveyor belt and its operating speed, the actual volume of concrete poured by each diversion conveyor belt at the corresponding slot can be accurately determined. Combined with a sliding gate, the volume and speed of concrete poured by each diversion conveyor belt at the corresponding slot can be effectively controlled.

[0059] To ensure the continuity of the pouring process during the more than 50-hour pouring time of a 200m-class ultra-deep cutoff wall, this invention sprays an anti-stick coating on the surfaces of components in contact with concrete to prevent concrete adhesion. Specifically, this invention uniformly and smoothly sprays a addition-type silicone-based anti-stick coating onto the surfaces of all components that come into direct contact with concrete, such as aggregate bins, fixed conveyor belts, distribution conveyor belts, distribution bins, and mixing plates, to prevent concrete from adhering to these components. Furthermore, the anti-stick coating needs to be replenished periodically. After each concrete pour, the condition of the anti-stick coating sprayed on the surfaces of all components that come into contact with concrete is checked. If the anti-stick coating is severely damaged, it is cleaned and re-sprayed; if the damage is minor, it is directly replenished until the surface is smooth and even.

[0060] Below, in conjunction with Figure 1 The process of conveying concrete for ultra-deep seepage barrier wall construction using the equipment of the present invention is described.

[0061] Preliminary Preparations: Check the security of all connections on the equipment; check the functionality of all automatically adjustable hydraulic devices; check the normal operation of motors, sensors, etc.; check the placement of each device, ensuring the aggregate bin is directly below the front end of the fixed conveyor belt to ensure all concrete conveyed by the fixed conveyor belt enters the aggregate bin; ensure all sliding doors of the electrically controlled distribution bins are closed; ensure the feeding ends of each distribution conveyor belt are below the discharge ports of each distribution bin to ensure all concrete from each discharge port enters its respective distribution conveyor belt. Adjust the angle, height, and length of each distribution conveyor belt according to the conditions of each slot, aligning the feeding ends of each distribution conveyor belt with the pouring guide pipes in each slot to ensure all conveyed concrete enters the pouring guide pipes. The length of the distribution conveyor belts is changed by extending and retracting the hydraulic cylinders that adjust the length of the movable frame, and the tension adjustment mechanism ensures the distribution conveyor belts are always taut.

[0062] Concrete delivery for pouring: Concrete (with pre-set slump and spread) is delivered to the aggregate bin using a concrete mixer truck. After passing through the aggregate bin, the concrete falls onto a fixed conveyor belt. An AI camera system records video of the concrete falling from the aggregate bin onto the fixed conveyor belt, obtaining the current slump and spread. The current slump and spread are compared with the pre-set values ​​to determine if they meet the requirements. This information is then fed back. Concrete that meets the requirements continues to be poured; otherwise, the concrete mixer truck stops discharging and the substandard concrete is disposed of. The concrete on the fixed conveyor belt is then transported to the waste bin.

[0063] Concrete that meets the requirements enters the distribution bin via a fixed conveyor belt. The mixing motor under the distribution bin starts and drives the mixing plate inside the bin to rotate, which performs secondary mixing on the concrete in the distribution bin to prevent the concrete from segregating during transportation. The rotation of the mixing plate can also distribute the concrete to the sliding doors of the distribution bin.

[0064] Based on the distribution of the slots, the sliding gates at the discharge outlets of the corresponding material bins of the diversion conveyor belts for each slot to be poured are opened, allowing concrete to enter the corresponding diversion conveyor belts for transport and pouring, thus meeting the need for simultaneous pouring of multiple slots. During the pouring process, the concrete on the diversion conveyor belts is weighed and measured while being transported, and the accurate concrete pouring volume is obtained by converting weight to volume. The stroke of the discharge outlet sliding gates can be adjusted according to the pouring speed requirements to control the size of the discharge outlet and the transport speed of the diversion conveyor belts, thereby controlling the pouring speed.

[0065] In summary, using the equipment of this invention for concrete conveying has the following advantages:

[0066] First, the method of using a belt conveyor to transport concrete for pouring solves the safety hazards that exist in the existing technology, which requires concrete trucks to be unloaded onto the walkway for concrete transport.

[0067] Second, the distribution silo is equipped with a mixing plate, which can re-mix the concrete, effectively preventing segregation of the concrete transported from the aggregate silo after long-distance transportation and the solidification of the concrete during the interval between pouring stops; in addition, the distribution silo has multiple sliding doors with independently adjustable discharge port openings. During the process of the mixing plate rotating to mix the concrete in the silo, the concrete distributed in different positions in the distribution silo can also be pushed to various discharge ports to achieve the function of diversion and distribution, thereby meeting the needs of simultaneous pouring of multiple slots.

[0068] Third, since the 200m-class ultra-deep cutoff wall is constructed using high-strength concrete with high viscosity, such as C45 or even C55, this invention applies a uniform and smooth addition-type silicone-based anti-stick coating to the surfaces of all components that come into direct contact with the concrete, such as aggregate bins, fixed conveyor belts, diversion conveyor belts, distribution bins, and mixing plates. This effectively prevents concrete from adhering to the components, reduces the amount of concrete slurry adhering, and minimizes concrete loss during transport. This ensures the continuity of the pouring process during the 50-hour pouring time of the 200m-class ultra-deep cutoff wall.

[0069] IV. This invention features multiple discharge ports on the material distribution silo. Each discharge port is equipped with an adjustable sliding door and a sliding door drive mechanism, and each discharge port is connected to a diversion conveyor device. The opening size of each discharge port can be controlled by opening and closing the sliding doors, thereby controlling the discharge speed and quantity of each discharge port. Furthermore, the concrete in the material distribution silo can be simultaneously diverted to multiple diversion conveyor belts, ensuring controllable discharge speed, uniform pouring, and continuous pouring. In addition, each diversion conveyor belt can operate independently, making the pouring process more flexible and allowing for on-demand pouring.

[0070] 5. Install camera components with AI recognition for concrete slump and spread outside the aggregate silo. After concrete is poured from the tanker into the aggregate silo and then falls onto the fixed conveyor belt from the bottom of the silo, the camera components can capture, analyze, locate, and compare the slump and spread of the concrete falling onto the fixed conveyor belt. This can guide the use of concrete that meets the requirements for slump and spread for pouring, while stopping the discharge of concrete that does not meet the requirements and removing it for disposal, thus ensuring the pouring quality of the concrete anti-seepage wall.

[0071] VI. The frame of the diversion conveyor belt for pouring has adjustable height and length, which can be appropriately adjusted according to the on-site pouring conditions. The motor speed that provides driving force to the diversion conveyor belt is adjustable, so that the running speed can be adjusted. Thus, the equipment of this invention can automatically adjust according to various site conditions to meet the pouring requirements of cutoff walls of various distances, heights and speeds, and reduce the labor costs in the pouring process of 200m-class ultra-deep cutoff walls.

[0072] VII. The diversion and conveying device is equipped with a weighing device. When the concrete passes over the weighing sensor, the concrete is weighed. By analyzing and calculating the data, the total weight of the concrete to be poured can be obtained. The volume of concrete can then be calculated based on the weight, and the pouring speed can be determined based on the volume of concrete, thereby adjusting the pouring speed accordingly. Therefore, by weighing and measuring the concrete on the diversion and conveying device, the actual volume of concrete delivered to the corresponding slot on each diversion conveyor can be accurately determined, thus allowing for effective control of the volume and speed of concrete poured on each diversion conveyor.

[0073] 8. The equipment of this invention realizes the automation and intelligence of concrete delivery during the concrete pouring process of the anti-seepage wall, which greatly saves labor costs, improves the continuity of the pouring process, increases construction efficiency, and ensures the quality of the completed wall.

[0074] Although the present invention has been described in detail above, the present invention is not limited thereto. Those skilled in the art can make modifications based on the principles of the present invention. Therefore, all modifications made in accordance with the principles of the present invention should be understood as falling within the protection scope of the present invention.

Claims

1. A device for conveying concrete for pouring ultra-deep seepage-proof walls, comprising: A silo used to hold concrete from tank trucks; A camera assembly used to capture video of concrete flowing out of the aggregate bin in order to obtain concrete that meets preset slump and spread requirements; A material distribution bin used to receive concrete flowing from the aggregate bin and to mix the concrete; A fixed conveying device for transporting the concrete from the aggregate bin to the distribution bin; Multiple diversion conveying devices are used to simultaneously transport concrete flowing from the distribution bins to multiple pouring slots so that multiple slots can be poured into walls at the same time.

2. The device according to claim 1, wherein the dispensing bin comprises: A hollow, frustum-shaped container; Multiple discharge ports are spaced apart on the side wall of the silo; Sliding doors are installed at each discharge port of the silo body; The mixing mechanism has a mixing plate that extends from the bottom of the silo into the silo to mix the concrete inside the silo. Multiple sliding door drive mechanisms are used to drive multiple sliding doors to slide relative to the silo body to expose or close the discharge port.

3. The device according to claim 1, wherein the diversion and conveying device comprises: Diversion conveyor belt; The frame supporting the diversion conveyor belt; Multiple support legs installed at the bottom of the frame to support the frame; The plurality of outriggers includes fixed outriggers with a constant height and telescopic outriggers with a variable height.

4. The device according to claim 3, wherein the frame includes a fixed frame and a movable frame detachably connected to the fixed frame, the fixed support leg is installed below the fixed frame, and the telescopic support leg is installed below the movable frame.

5. The device according to claim 1, wherein the camera component comprises: A camera module used to capture video of concrete flowing out of the aggregate bin; The video processing module obtains the current concrete slump and expansion by processing the concrete video captured by the camera module. This module is used to compare the slump and spread of the current concrete with the preset slump and spread of concrete that meet the requirements for pouring ultra-deep cutoff walls, and to determine whether the slump and spread of the current concrete meet the preset requirements for concrete slump and spread.

6. The device according to claim 5, wherein the shooting module is mounted on the frame of the collection bin and aligned with the outlet of the collection bin.

7. The device according to claim 6, wherein the video processing module comprises: A thickness processing module is used to process the concrete video captured by the shooting module to obtain concrete thickness information corresponding to the current concrete slump. A diameter processing module is used to process the concrete video captured by the camera module to obtain the diameter information of the concrete diffusion surface corresponding to the current concrete spread.

8. The device according to any one of claims 1-7, further comprising: A weighing device used to weigh and measure the concrete conveyed on a diversion conveyor belt during the concrete conveying process, in order to determine the volume of concrete poured into the corresponding slots via the diversion conveyor belt.

9. The device according to claim 8, wherein the weighing device comprises: A weighing sensor used to detect the weight of the concrete passing over it; A speed sensor used to detect the current operating speed of the diversion conveyor belt; A weight processing module that is electrically connected to both the weighing sensor and the speed sensor; The weight processing module receives weight information detected by the weighing sensor and speed information detected by the speed sensor. Based on the received weight and speed information, it obtains the weight of concrete passing through the diversion conveyor belt per unit time and performs cumulative calculations to determine the volume of concrete poured into the corresponding slot via the diversion conveyor belt.

10. The device according to claim 1, wherein the surface of the component in contact with concrete is sprayed with an anti-stick coating to prevent concrete adhesion.

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