A dust suppression system for concrete plant construction

Abstract

This invention relates to the field of dust suppression technology in construction technology, and discloses a dust suppression system for concrete plant construction. The system includes a dust suppression module for reducing dust in the concrete plant, comprising a track unit and a dust suppression unit. The track unit carries the dust suppression unit and moves it along a track. The track unit is fixed to the top of a concrete column based on I-beams via pre-embedded supports. The dust suppression unit includes atomizing nozzles and a telescopic mist cannon arm. The dust suppression unit moves along the track unit via a drive gear to suppress dust in the concrete plant. A multi-source dust monitoring module scans the amount of mud carried by concrete mixer truck tires and predicts dust concentration based on a concrete plant dust model. A central control module controls the start, stop, and movement of the dust suppression module based on dust concentration data and is communicatively connected to the dust suppression module and the multi-source dust monitoring module. This invention uses a combination of scanning tire mud volume and a concrete plant dust model for prediction, and then uses the dust suppression module to suppress dust.

Description

Technical Field

[0001] This invention relates to the field of dust suppression technology in building construction, and in particular to a dust suppression system for concrete plant construction. Background Technology

[0002] Dust pollution is a long-standing industry problem in concrete plant construction. In particular, secondary dust caused by mud on the tires of concrete mixer trucks accounts for more than 38% of the total dust. This is because when concrete mixer trucks are operating in concrete plants, the wet concrete material adhering to the tires will detach mud chunks during the journey. After the mud chunks fall to the ground, they will be dried and crushed into inhalable particulate matter by the vehicle, which will form a secondary source of dust pollution.

[0003] Existing technologies have a response lag. Traditional fixed dust sensors only monitor already dispersed dust and cannot predict dust sources in advance. It takes 5-10 minutes from dust generation to system response, which often results in PM10 peak concentrations exceeding national standards by 3-5 times. Therefore, there is an urgent need for a dust suppression system for concrete plant construction. Summary of the Invention

[0004] The purpose of this invention is to overcome one or more of the above-mentioned existing technical problems and provide a dust suppression system for concrete plant construction.

[0005] To achieve the above objectives, the present invention provides a dust suppression system for concrete plant construction, comprising: Dust suppression module, used for dust suppression in concrete workshops, includes track unit and dust suppression unit; The track unit is used to support the dust suppression unit to move on the track. The track unit is based on I-beams and is fixed to the top of the concrete column by pre-embedded supports. The dust suppression unit, which includes atomizing nozzles and telescopic fog cannon arms, moves on a track unit via drive gears to reduce dust in the concrete plant. The multi-source dust monitoring module is used to scan the amount of mud on the tires of concrete mixer trucks and predict dust concentration based on the dust model of the concrete plant. The central control module is used to control the start, stop, and movement of the dust suppression module based on dust concentration data, and it communicates with the dust suppression module and the multi-source dust monitoring module.

[0006] According to one aspect of the present invention, the multi-source dust monitoring module further includes a sensor unit, which includes a laser sensor array and a millimeter-wave radar. The laser sensor array is arranged along the factory passage, and the millimeter-wave radar is located on top of the dust suppression unit.

[0007] According to one aspect of the present invention, in a multi-source dust monitoring module, dust concentration is predicted based on a dust model of a concrete plant, wherein the formula is: ; in, This indicates the predicted dust concentration; Indicates the current dust concentration; Indicates the diffusion attenuation coefficient; Indicates the time of change; Indicates the current time; Indicates the calibration coefficient; This indicates the amount of mud carried by the tire.

[0008] According to one aspect of the invention, the central control module includes a path planning unit for planning the movement path of the dust suppression unit on the track unit based on real-time data from the multi-source dust monitoring module.

[0009] According to one aspect of the present invention, the central control module includes a path storage unit for storing historical path data within a certain time range, generating a path database, and for each path data in the path database, using a path analysis algorithm to extract multi-dimensional features of the path, including path length, path shape, path direction, and path waypoints. Cluster analysis was performed on the multi-dimensional features of the path, and the path planning units were optimized based on the results of the cluster analysis and the dust model of the concrete plant.

[0010] According to one aspect of the present invention, the number of dust suppression units is at least two, the central control module includes a collision risk control unit, and each dust suppression unit broadcasts its own coordinates every 100ms via a CAN bus; When the distance between two dust suppression units is less than 2m, a three-level response is triggered in sequence: deceleration, path replanning, and emergency braking.

[0011] According to one aspect of the present invention, the central control module includes a decision-making unit, which is used to receive dust data in real time and compare it with a preset threshold. If the concentration exceeds the standard, the path planning unit will be activated to plan the path and broadcast it to the dust suppression unit via the CAN bus for dust removal. If the concentration does not exceed the standard, it will enter standby mode and continue to judge the concentration.

[0012] According to one aspect of the invention, RFID positioning tags are embedded at intervals on the surface of the I-beams of the track unit, and an RFID reader is provided at the bottom of the dust suppression unit.

[0013] According to one aspect of the present invention, the central control module generates a thermal map of the spatial distribution of dust concentration based on the fusion of tag location information and millimeter-wave radar scanning data.

[0014] According to one aspect of the present invention, the path planning unit generates a path in real time by combining data from a heat map of the spatial distribution of dust concentration, and stores the heat map of the spatial distribution of dust concentration at this time in the path storage unit for path optimization.

[0015] Based on this, the beneficial effects of the present invention are as follows: the present invention estimates the degree of dust by scanning the amount of mud carried by the tires and combining it with the dust model of the concrete plant, and then uses the dust suppression module to suppress dust by spraying. Attached Figure Description

[0016] Figure 1 This is a schematic diagram illustrating a dust suppression system for concrete plant construction according to an exemplary embodiment; Figure 2 This is a diagram illustrating the installation steps of a track unit for a dust suppression system used in concrete plant construction, according to an exemplary embodiment. Figure 3 This is a diagram of a central control module for a dust suppression system used in concrete plant construction, according to an exemplary embodiment. Detailed Implementation

[0017] The invention will now be discussed with reference to exemplary embodiments. It should be understood that the described embodiments are merely intended to enable those skilled in the art to better understand and thus implement the invention, and are not intended to imply any limitation on the scope of the invention.

[0018] As used herein, the term “comprising” and its variations are to be interpreted as open-ended terms meaning “including but not limited to”. The term “based on” is to be interpreted as “at least partially based on”, and the terms “one embodiment” and “an embodiment” are to be interpreted as “at least one embodiment”.

[0019] According to one embodiment of the present invention, Figure 1 This is a schematic diagram illustrating a dust suppression system for concrete plant construction, according to an exemplary embodiment. Figure 2 This is a diagram illustrating the installation steps of a track unit for a dust suppression system used in concrete plant construction, according to an exemplary embodiment. Figure 3 This is a diagram illustrating a central control module for a dust suppression system used in concrete plant construction, according to an exemplary embodiment. Figures 1-3 As shown, to achieve the above objectives, the present invention provides a dust suppression system for concrete plant construction, comprising: Dust suppression module, used for dust suppression in concrete workshops, includes track unit and dust suppression unit; The track unit is used to support the dust suppression unit to move on the track. The track unit is based on I-beams and is fixed to the top of the concrete column by pre-embedded supports. The dust suppression unit, which includes atomizing nozzles and telescopic fog cannon arms, moves on a track unit via drive gears to reduce dust in the concrete plant. The multi-source dust monitoring module is used to scan the amount of mud on the tires of concrete mixer trucks and predict dust concentration based on the dust model of the concrete plant. The central control module is used to control the start, stop, and movement of the dust suppression module based on dust concentration data, and it communicates with the dust suppression module and the multi-source dust monitoring module.

[0020] According to one embodiment of this application, the multi-source dust monitoring module further includes a sensor unit, which includes a laser sensor array and a millimeter-wave radar. The laser sensor array is arranged along the factory passage, and the millimeter-wave radar is located on top of the dust suppression unit.

[0021] According to one embodiment of this application, in a multi-source dust monitoring module, dust concentration is predicted based on a concrete plant dust model, wherein the formula is: ; in, This indicates the predicted dust concentration; This represents the current dust concentration, which serves as the initial value for calculating the concentration at subsequent times. Indicates the time of change; Indicates the current time; This represents the calibration factor, used to convert the amount of mud carried by the tire into its actual impact on the concentration of the substance. Indicates the amount of mud carried by the tire; Indicates the diffusion attenuation coefficient; Represents the exponentially decaying term, where It is the diffusion attenuation coefficient, which reflects the rate at which the concentration of a substance naturally decreases over time. The larger the value, the faster the substance concentration decays. ∆t is the time of change; as ∆t increases, The value will gradually decrease, leading to This portion contributes less to the final concentration.

[0022] According to one embodiment of this application, the central control module includes a path planning unit for planning the movement path of the dust suppression unit on the track unit based on real-time data from the multi-source dust monitoring module.

[0023] According to one embodiment of this application, the central control module includes a path storage unit for storing historical path data within a certain time range, generating a path database, and for each path data in the path database, using a path analysis algorithm to extract multi-dimensional features of the path, including path length, path shape, path direction, and path waypoints. Cluster analysis was performed on the multi-dimensional features of the path, and the path planning units were optimized based on the results of the cluster analysis and the dust model of the concrete plant.

[0024] According to one embodiment of this application, the number of dust suppression units is at least two, the central control module includes a collision risk control unit, and each dust suppression unit broadcasts its own coordinates every 100ms via a CAN bus. When the distance between two dust suppression units is less than 2m, a three-level response is triggered in sequence: deceleration, path replanning, and emergency braking.

[0025] According to one embodiment of this application, the central control module includes a decision-making unit, which is used to receive dust data in real time and compare it with a preset threshold. If the concentration exceeds the standard, the path planning unit will be activated to plan the path and broadcast it to the dust suppression unit via the CAN bus for dust removal. If the concentration does not exceed the standard, it will enter standby mode and continue to judge the concentration.

[0026] According to one embodiment of this application, RFID positioning tags are embedded at intervals on the surface of the I-beams of the track unit, and an RFID reader is provided at the bottom of the dust suppression unit.

[0027] According to one embodiment of this application, the central control module generates a heat map of the spatial distribution of dust concentration by fusing tag location information with scanning data from millimeter-wave radar.

[0028] According to one embodiment of this application, the path planning unit generates a path in real time by combining the data of the spatial distribution heat map of dust concentration, and stores the current spatial distribution heat map of dust concentration in the path storage unit for path optimization.

[0029] According to one embodiment of this application, the brushless motor is connected to the chassis of the dust suppression unit via a reducer, and the telescopic fog cannon arm includes three hydraulic push rods. The atomizing nozzles are distributed in a fan shape at the end of the fog cannon arm, and the nozzle tilt angle is adjustable.

[0030] According to one embodiment of this application, the track unit is installed as follows: positioning the pre-embedded point on the top of the concrete column, welding the pre-embedded support, hoisting the I-beam track in sections, laser calibrating the levelness to ≤+2mm / m, and embedding RFID positioning tags at 5m intervals.

[0031] According to one embodiment of this application, during peak hours of concrete mixer truck entry and exit, five concrete mixer trucks entered the plant consecutively. The average mud content detected by millimeter-wave radar was 2.3 kg / m² (moisture content 12%). After 15 minutes, the concentration in the passage area was calculated to be approximately 142 μg / m³. The central control module responded by dispatching the No. 2 dust suppression truck to the passage coordinates (35, 72). The fog cannon arm was extended to the second section (6 m in height), and the nozzle tilt angle was adjusted to -10° to spray downwards. The three-level collision avoidance was triggered, the No. 1 truck slowed down, the No. 2 truck detoured, and the distance between them was restored to 3.5 m. As a result, after 10 minutes, the measured concentration dropped to 48 μg / m³, and the thermal map changed from red to yellow.

[0032] Those skilled in the art will recognize that the modules and algorithm steps described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this invention.

[0033] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working process of the above-described apparatus and equipment can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0034] In the embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of modules is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple modules or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or modules may be electrical, mechanical, or other forms.

[0035] The modules described as separate components may or may not be physically separate. The components shown as modules may or may not be physical modules; that is, they may be located in one place or distributed across multiple network modules. Some or all of the modules can be selected to achieve the purpose of the embodiments of the present invention, depending on actual needs.

[0036] In addition, the functional modules in the embodiments of the present invention can be integrated into one processing module, or each module can exist physically separately, or two or more modules can be integrated into one module.

[0037] If the aforementioned functions are implemented as software functional modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this invention, essentially, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the energy-saving signal transmission / reception methods of the various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, ROM, RAM, magnetic disks, or optical disks.

[0038] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

[0039] It should be understood that the sequence number of each step in the invention and embodiments of the present invention does not absolutely imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

Claims

1. A dust suppression system for concrete plant construction, characterized in that, include: Dust suppression module, used for dust suppression in concrete workshops, includes track unit and dust suppression unit; The track unit is used to support the dust suppression unit to move on the track. The track unit is based on I-beams and is fixed to the top of the concrete column by pre-embedded supports. The dust suppression unit, which includes atomizing nozzles and telescopic fog cannon arms, moves on a track unit via drive gears to reduce dust in the concrete plant. The multi-source dust monitoring module is used to scan the amount of mud on the tires of concrete mixer trucks and predict dust concentration based on the dust model of the concrete plant. In the multi-source dust monitoring module, dust concentration is predicted based on a dust model of a concrete plant, where the formula is: ； in, This indicates the predicted dust concentration; Indicates the current dust concentration; Indicates the diffusion attenuation coefficient; Indicates the time of change; Indicates the current time; Indicates the calibration coefficient; Indicates the amount of mud carried by the tire; The central control module is used to control the start, stop, and movement of the dust suppression module based on dust concentration data, and it communicates with the dust suppression module and the multi-source dust monitoring module.

2. The dust suppression system for concrete plant construction as described in claim 1, characterized in that, The multi-source dust monitoring module also includes a sensor unit, which includes a laser sensor array and a millimeter-wave radar. The laser sensor array is arranged along the factory passage, and the millimeter-wave radar is set on the top of the dust suppression unit.

3. A dust suppression system for concrete plant construction as described in claim 2, characterized in that, The central control module includes a path planning unit, which plans the movement path of the dust suppression unit on the track unit based on real-time data from the multi-source dust monitoring module.

4. A dust suppression system for concrete plant construction as described in claim 3, characterized in that, The central control module includes a path storage unit, which stores historical path data within a certain time range and generates a path database. For each path data in the path database, a path analysis algorithm is used to extract multi-dimensional features of the path, including path length, path shape, path direction, and path waypoints. Cluster analysis was performed on the multi-dimensional features of the path, and the path planning units were optimized based on the results of the cluster analysis and the dust model of the concrete plant.

5. A dust suppression system for concrete plant construction as described in claim 4, characterized in that, The number of dust suppression units is at least 2. The central control module includes a collision risk control unit. Each dust suppression unit broadcasts its own coordinates every 100ms via the CAN bus. When the distance between two dust suppression units is less than 2m, a three-level response is triggered in sequence: deceleration, path replanning, and emergency braking.

6. A dust suppression system for concrete plant construction as described in claim 5, characterized in that, The central control module includes a decision-making unit, which receives dust data in real time and compares it with preset thresholds. If the concentration exceeds the standard, the path planning unit will be activated to plan the path and broadcast it to the dust suppression unit via the CAN bus for dust removal. If the concentration does not exceed the standard, it will enter standby mode and continue to judge the concentration.

7. A dust suppression system for concrete plant construction as described in claim 6, characterized in that, The surface of the I-beams of the track unit is fitted with RFID positioning tags at intervals, and the bottom of the dust suppression unit is equipped with an RFID reader.

8. A dust suppression system for concrete plant construction as described in claim 7, characterized in that, The central control module generates a heat map of the spatial distribution of dust concentration by fusing tag location information with scanning data from millimeter-wave radar.

9. A dust suppression system for concrete plant construction as described in claim 8, characterized in that, The path planning unit generates a path in real time by combining the data from the heat map of the spatial distribution of dust concentration, and stores the heat map of the spatial distribution of dust concentration at this time in the path storage unit for path optimization.

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