Tailings discharge method and device for tailings pond

Abstract

The present application provides a tailings discharge method and device for a tailings pond, which includes: obtaining measured data of the tailings pond in real time through a data acquisition device, the measured data including detection data, video data and three-dimensional data of the tailings pond; establishing a three-dimensional model of the tailings pond according to the measured data and design parameters of the tailings pond; analyzing and predicting the tailings accumulation based on the measured data, design parameters and three-dimensional model, and generating a tailings discharge strategy according to the analysis and prediction results; and controlling the tailings discharge equipment according to the tailings discharge strategy; and continuously correcting the tailings rheological model and consolidation characteristic parameters according to the measured data and the morphological changes of the three-dimensional model, and optimizing the tailings discharge strategy according to the tailings rheological model and consolidation characteristic parameters. The tailings discharge method and device for the tailings pond of the present application can realize real-time monitoring and intelligent analysis, prediction and dynamic optimization and automatic control of the tailings accumulation of the tailings pond.

Description

Technical Field

[0001] The present application relates to the technical field of tailings pond monitoring, and in particular to a method and device for discharging tailings from a tailings pond. Background Art

[0002] Tailings ponds are constructed by building dams to intercept valley mouths or enclosing land to store tailings or other industrial wastes discharged after ore sorting in metal or non-metal mines. They are the main structures of mine tailings facilities. Reasonable planning and operation of tailings discharge are important factors affecting the safety and effective storage capacity of tailings ponds.

[0003] At present, the tailings discharge plan and strategy of the tailings pond are mainly formulated by the staff through on-site visual inspection or survey based on experience. The tailings discharge equipment and valve group of the tailings pond are manually operated and controlled by the on-site operators according to the discharge plan and strategy.

[0004] The above method has the following disadvantages:

[0005] 1. The tailings discharge plan and strategy of the tailings pond lack scientific and effective survey and judgment methods, and rely entirely on visual data and human judgment. They are greatly influenced by personal experience and it is difficult to achieve the expected tailings deposition effect, resulting in uneven tailings accumulation, deviation from the design plan, reduction of effective storage capacity, and safety hazards.

[0006] 2. The tailings discharge equipment and valve group of the tailings pond do not have the logic and basis for automatic control and can only be operated manually on site, which has low work efficiency. At the same time, since entering the tailings pond area is dangerous, there are certain safety hazards for on-site operators.

[0007] Therefore, a new method and device for discharging tailings from a tailings pond is needed.

[0008] The above information disclosed in this Background section is only for enhancement of understanding of the background of the present disclosure and therefore it may contain information that does not constitute the prior art that is already known to one of ordinary skill in the art. Summary of the invention

[0009] In view of this, the present application provides a tailings discharge method and device for a tailings pond, which can realize real-time monitoring and intelligent control of the tailings accumulation situation in the tailings pond.

[0010] Other features and advantages of the present application will become apparent from the following detailed description, or may be learned in part by the practice of the present application.

[0011] According to a first aspect of an embodiment of the present application, a method for discharging tailings from a tailings pond is proposed, the method comprising: acquiring measured data of the tailings pond in real time through a data acquisition device, the measured data comprising detection data, video data and three-dimensional data of the tailings pond; establishing a three-dimensional model of the tailings pond according to the measured data and design parameters of the tailings pond; analyzing and predicting the tailings accumulation situation based on the measured data, design parameters and the three-dimensional model, and generating a tailings discharge strategy according to the analysis and prediction results; and controlling the tailings discharge equipment according to the tailings discharge strategy to achieve dynamic optimization and automatic discharge of tailings from the tailings pond; and continuously correcting the tailings rheological model and consolidation characteristic parameters according to the measured data and the morphological changes of the three-dimensional model, and optimizing the tailings discharge strategy according to the tailings rheological model and consolidation characteristic parameters.

[0012] In an exemplary embodiment of the present application, obtaining the measured data of the tailings pond in real time through the data acquisition equipment includes: obtaining the measured data through photogrammetry equipment; and\or obtaining the measured data through a laser scanner; and\or obtaining the measured data through a radar scanner; and\or obtaining the measured data through a tailings pond online monitoring system; and\or obtaining the measured data through a tailings discharge detection device.

[0013] In an exemplary embodiment of the present application, the tailings accumulation situation is analyzed and predicted based on the measured data, design parameters and three-dimensional model, including one or more of the following situations: comparing the tailings dam width in the measured data with the tailings dam width design value to obtain the tailings dam width comparison result; comparing the dam inner and outer slope ratio in the measured data with the dam inner and outer slope ratio design value to obtain the dam inner and outer comparison result; determining the flood control storage capacity analysis result according to the flood control storage capacity, safety superelevation and minimum dry beach length in the measured data; determining the flood discharge weir flow according to the measured data; determining the flood control storage capacity analysis result according to .... The method comprises the following steps: determining whether the flood discharge weir is blocked according to the measured data, and obtaining a blockage judgment result; obtaining a drainage well status result according to the drainage well status data in the measured data; performing a geometric analysis on the tailings dam morphology in the three-dimensional model through the design parameters, and obtaining tailings dam analysis data; predicting the tailings accumulation morphology and at least one safety parameter according to the design parameters, the measured data, the tailings slurry rheological property model, and the tailings consolidation characteristic parameters; wherein the safety parameters include one or more of the following situations: tailings dam width, dam inner and outer slope ratio, flood control storage capacity, flood control storage capacity and safety superelevation, and dry beach length.

[0014] In an exemplary embodiment of the present application, generating a tailings discharge strategy based on analysis and prediction results includes: predicting the dischargeable capacity of each discharge point based on the analysis and prediction results and tailings expected data; and optimizing the tailings discharge strategy based on the dischargeable capacity.

[0015] In an exemplary embodiment of the present application, controlling the tailings discharge equipment according to the tailings discharge strategy includes: determining the opening and closing time of the tailings discharge equipment according to the tailings discharge strategy; and determining the opening and closing sequence of the tailings discharge equipment according to the tailings discharge strategy.

[0016] In an exemplary embodiment of the present application, it further includes: timing control to open the flushing equipment of the tailings pond to flush the pipeline of the tailings discharge equipment.

[0017] In an exemplary embodiment of the present application, it also includes: also includes: sending the measured data and the three-dimensional model to a display interface in real time.

[0018] According to a second aspect of an embodiment of the present application, a tailings discharge device for a tailings pond is proposed, the device comprising: a three-dimensional data acquisition device for acquiring measured data of the tailings pond in real time, the measured data comprising detection data, video data and three-dimensional data of the tailings pond; a model module for establishing a three-dimensional model of the tailings pond according to the measured data and design parameters of the tailings pond; an analysis module for analyzing and predicting the tailings accumulation situation based on the measured data, design parameters and the three-dimensional model, and generating a tailings discharge strategy according to the analysis and prediction results; a tailings discharge device for implementing the tailings discharge strategy to achieve tailings discharge from the tailings pond; and an optimization module for continuously correcting the tailings rheological model and consolidation characteristic parameters according to the measured data and the morphological changes of the three-dimensional model, and optimizing the tailings discharge strategy according to the tailings rheological model and consolidation characteristic parameters.

[0019] In an exemplary embodiment of the present application, the data acquisition equipment includes one or more of the following: photogrammetry equipment, a laser scanner, a radar scanner, a tailings pond online monitoring system, and a tailings discharge detection device.

[0020] In an exemplary embodiment of the present application, the device further includes: a data acquisition system for transmitting the measured data to the model module via wired and / or wireless means.

[0021] According to the tailings pond tailings discharge method and device of the present application, real-time monitoring and intelligent control of the tailings accumulation situation in the tailings pond can be achieved, and the tailings discharge strategy can be optimized in real time according to the measured data and the morphological changes of the three-dimensional model, thereby improving the discharge quality and efficiency.

[0022] It is to be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the specification are used to explain the principles of the present application. The drawings described below are only some embodiments of the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 The present invention is a flow chart showing a method for discharging tailings from a tailings pond according to an exemplary embodiment.

[0025] Figure 2 The present invention is a flow chart showing a method for discharging tailings from a tailings pond according to an exemplary embodiment.

[0026] Figure 3 The present invention is a flow chart showing a method for discharging tailings from a tailings pond according to another exemplary embodiment.

[0027] Figure 4 It is a block diagram of a tailings discharge device of a tailings pond according to an exemplary embodiment.

[0028] Figure 5 It is a block diagram of a tailings discharge device of a tailings pond according to another exemplary embodiment. DETAILED DESCRIPTION

[0029] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar parts, and thus their repeated description will be omitted.

[0030] The described features, structures or characteristics may be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present invention. However, those skilled in the art will appreciate that the technical solution of the present invention may be practiced while omitting one or more of the specific details, or other methods, components, devices, steps, etc. may be adopted. In other cases, known methods, devices, implementations or operations are not shown or described in detail to avoid blurring various aspects of the present invention.

[0031] The accompanying drawings are only schematic illustrations of the present invention, and the same reference numerals in the drawings represent the same or similar parts, so their repeated description will be omitted. Some block diagrams shown in the accompanying drawings do not necessarily correspond to physically or logically independent entities. These functional entities can be implemented in software form, or in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0032] The flowcharts shown in the accompanying drawings are only exemplary and do not necessarily include all the contents and steps, nor must they be executed in the order described. For example, some steps can be decomposed, and some steps can be combined or partially combined, so the actual execution order may change according to actual conditions.

[0033] Exemplary embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0034] Figure 1 1 is a flow chart showing a method for discharging tailings from a tailings pond according to an exemplary embodiment. The method 10 for discharging tailings from a tailings pond includes at least steps S102 to S110.

[0035] like Figure 1 As shown, in S102, the measured data of the tailings pond is obtained in real time through the data acquisition equipment, and the measured data includes the monitoring data, video data and three-dimensional data of the tailings pond. Among them, the topography of the tailings pond can be measured to obtain the three-dimensional data of the surface of the tailings pond dam body, and the three-dimensional data can be, for example, but not limited to, the dry beach morphology and water surface morphology of the tailings pond; the tailings concentration and tailings flow can be measured by, for example, but not limited to, using a concentration meter and a flow meter to obtain the measured data. The video data can, for example, record water level information, dry beach changes, etc. in real time, and the video data can also be used to monitor the safety status of the on-site equipment of the tailings pond.

[0036] In one embodiment, S102 includes: obtaining measured data through photogrammetric equipment; and\or obtaining measured data through laser scanners; and\or obtaining measured data through radar scanners; and / or obtaining measured data through tailings pond online monitoring systems; and / or obtaining measured data through tailings discharge detection devices. Among them, photogrammetric equipment can be used to obtain video information, and laser scanners can obtain three-dimensional data of tailings ponds, such as data in the form of point clouds. Radar scanners can be used to measure water level information, tailings morphology and other information. Laser scanners, radar scanners and photogrammetric equipment can be installed in an airborne manner or in a fixed manner, and the present invention is not limited to this. The tailings pond online monitoring system can be used to obtain elevation, liquid level, inclination, displacement, etc. The tailings discharge monitoring system can be used to obtain tailings concentration, flow, quality, accumulation, etc.

[0037] In S104, a three-dimensional model of the tailings pond is established based on the measured data and design parameters of the tailings pond. The three-dimensional model can be built based on the three-dimensional data and design parameters, and three-dimensional identification of on-site equipment can be established based on the video data and design parameters. In addition, the real-time status of the tailings pond can also be displayed based on the video data.

[0038] In S106, the tailings accumulation situation is analyzed and predicted based on the measured data, design parameters and three-dimensional model, and a tailings discharge strategy is generated based on the analysis and prediction results. The tailings accumulation situation can be analyzed, for example, based on data such as tailings morphology. The ideal tailings accumulation morphology is calculated based on design parameters or manual settings, and the current sand-deficient area and sand-deficient amount can be analyzed based on the tailings accumulation situation and the ideal tailings accumulation morphology, and a tailings discharge strategy is generated accordingly.

[0039] In one embodiment, the analysis and prediction of tailings accumulation based on measured data, design parameters and three-dimensional models include one or more of the following situations: comparing the tailings dam width in the measured data with the design value of the tailings dam width to obtain a tailings dam width comparison result; comparing the dam inner and outer slope ratio in the measured data with the design value of the dam inner and outer slope ratio to obtain a dam inner and outer comparison result; determining the flood control storage capacity analysis result based on the flood control storage capacity, safety superelevation and minimum dry beach length in the measured data; judging whether the flood discharge weir is blocked based on the flood discharge weir flow in the measured data to obtain a blockage judgment result; obtaining the drainage well status result based on the drainage well status data in the measured data; geometrically analyzing the tailings dam morphology in the three-dimensional model through design parameters to obtain tailings dam analysis data; predicting the tailings accumulation morphology and at least one safety parameter based on the design parameters, measured data and the tailings slurry rheological property model and tailings consolidation characteristic parameters; wherein the safety parameters include one or more of the following situations: tailings dam width, dam inner and outer slope ratio, flood control storage capacity, flood control storage capacity and safety superelevation, and dry beach length.

[0040] In one embodiment, generating a tailings discharge strategy based on the analysis and prediction results includes: predicting the dischargeable capacity of each discharge point based on the tailings discharge model and the expected tailings data; and generating a tailings discharge strategy based on the dischargeable capacity and the tailings discharge distribution model. Among them, the tailings discharge equipment may be, for example, but not limited to, a pump, a cyclone, a slurry valve, etc. with a remote switch function. For example, the discharge amount of each tailings discharge point can be estimated based on the current tailings accumulation form, the expected tailings accumulation form, the amount of sand shortage in the sand-deficient area, and the tailings flow rate, concentration data, etc., to obtain the dischargeable capacity of each discharge point. And formulate a tailings discharge strategy based on the dischargeable capacity.

[0041] In S108, the tailings discharge equipment is controlled according to the tailings discharge strategy to achieve tailings discharge from the tailings pond. Among them, the work plan of the discharge equipment within a predetermined time, such as the work sequence and the work time, can be arranged according to the tailings discharge strategy. This can be achieved through PLC logic programming, but the present disclosure is not limited thereto.

[0042] In one embodiment, controlling the tailings discharge equipment according to the tailings discharge strategy includes: determining the opening and closing time of the tailings discharge equipment according to the tailings discharge strategy; and determining the opening and closing sequence of the tailings discharge equipment according to the tailings discharge strategy. The tailings discharge strategy may be, for example, a control strategy for the discharge equipment within a predetermined time. The discharge equipment includes, but is not limited to, pumps, cyclones, slurry valves, etc. with remote switching functions.

[0043] In step S110, the tailings rheological model and consolidation characteristic parameters are continuously corrected according to the measured data and the morphological changes of the three-dimensional model, and the tailings discharge strategy is optimized according to the tailings rheological model and consolidation characteristic parameters. In order to ensure the effectiveness of the tailings discharge strategy, the actual storage morphological changes of each discharge point can be compared with the estimated morphology according to the latest tailings data such as tailings morphology obtained in real time, and dynamic feedback can be formed to adjust the tailings discharge strategy in real time.

[0044] In one embodiment, it also includes: timing control to open the flushing equipment of the tailings pond to flush the pipeline of the tailings discharge equipment. The flushing equipment is, for example but not limited to, a flushing water valve, and the flushing water source can be drawn from the tailings pond nearby, and the present invention does not make special restrictions on this. When the flushing equipment is flushed regularly, automatic flushing can be performed for a certain period of time after the pipeline of the corresponding tailings discharge equipment is discharged, so as to prevent the pipeline or valve from having residual slurry and drying.

[0045] In one embodiment, the method further includes: sending the measured data and the three-dimensional model to the display interface in real time. The three-dimensional model of the tailings pond and the tailings discharge model can be sent to the client display interface through the data server, providing functions such as three-dimensional scene browsing and video display of the tailings pond.

[0046] According to the tailings discharge method of the tailings pond of the present application, the measured data of the tailings pond is organically combined and analyzed to generate a tailings discharge strategy and control the discharge of tailings accordingly. This can achieve real-time monitoring and intelligent control of the tailings accumulation situation in the tailings pond, and can optimize the tailings discharge strategy in real time according to the measured data and the morphological changes of the three-dimensional model, thereby improving the discharge quality and efficiency.

[0047] Figure 2 1 is a flow chart showing a method for discharging tailings from a tailings pond according to an exemplary embodiment. The method 20 for discharging tailings from a tailings pond includes at least one or more of S202 to S210.

[0048] In S202, the measured data is obtained by a photogrammetric device. The laser scanner can measure distance, for example, by measuring the visible distance of the tailings dam to obtain measured data about the tailings dam. The laser scanner can be installed in an airborne or fixed manner. When it is installed in a fixed manner, its fixing point is adjustable, such as but not limited to a fixing rod with adjustable height, etc., to avoid repeated reinstallation of the laser scanner.

[0049] In S204, the measured data is obtained by a laser scanner. A radar scanner can measure distance, for example, by measuring the visible distance of the tailings dam to obtain measured data about the tailings dam. The installation method of the radar scanner is similar to that of the laser scanner.

[0050] In S206, the measured data is acquired by a radar scanner. The photogrammetry equipment may be, for example but not limited to, an infrared camera, which may automatically acquire the measured data of the tailings pond using the video tracking technology included in the software.

[0051] In S208, measured data is obtained through the tailings pond online monitoring system. The tailings pond online monitoring system can be used to obtain measured data such as elevation, liquid level, inclination, displacement, etc.

[0052] In S210, measured data is obtained through a tailings discharge detection device. The tailings discharge detection device can be used to obtain measured data such as tailings concentration, flow, quality, and accumulation.

[0053] Figure 3 2 is a flow chart showing a method for discharging tailings from a tailings pond according to another exemplary embodiment. The method 30 for discharging tailings from a tailings pond includes at least steps S302 to S318.

[0054] In S302, measured data of the tailings pond is collected by data collection equipment, wherein the measured data includes: detection data, video data, three-dimensional data, tailings flow, concentration data, etc.

[0055] In S304, a three-dimensional model of the tailings pond is established according to the design parameters of the tailings pond and the measured data.

[0056] In S306, the video data, three-dimensional data, tailings flow, tailings concentration and other data of the tailings pond are stored and managed through the data server.

[0057] In S308, the three-dimensional data collected in real time or at regular intervals is sent to the display interface through the data server to display and update the display interface.

[0058] In S310, the tailings discharge automatic control equipment and valve group are set, including a pump with remote switch function, a cyclone, a slurry valve, a flushing water valve, etc. The water source of the flushing water valve is drawn from the tailings pond nearby.

[0059] In S312, the tailings pond analysis module is run through the data server to analyze the tailings accumulation situation, obtain the insufficient sand area and the insufficient sand amount and the tailings discharge model. The discharge point distribution model is established, the terminal position of each tailings discharge pipeline is marked in the three-dimensional model of the tailings pond, and the tailings storage area radiated by the discharge point is planned, segmented and represented.

[0060] In S314, the tailings discharge intelligent control module is run through the data server:

[0061] (1) Estimate the tailings discharge point and the discharge amount of each discharge point based on the current tailings accumulation form, the expected tailings accumulation form, the amount of sand shortage in the sand-deficient area, and the tailings flow and concentration data.

[0062] (2) Generate tailings discharge strategy within a certain period of time.

[0063] (3) According to the tailings discharge strategy, preset the working sequence and working time of the tailings discharge automatic control equipment and pipelines;

[0064] (4) Based on the tailings morphology scanned in real time or at regular intervals, the actual storage morphology changes at each discharge point are compared with the estimated morphology to form dynamic feedback and adjust the tailings discharge strategy in a timely manner.

[0065] (5) Control the flushing water valve to automatically flush for a certain period of time according to the program after the corresponding pipeline is discharged, so as to prevent the pipeline or valve from having residual slurry and drying. The water source for the flushing water valve is drawn from the tailings pond nearby.

[0066] In S316, a display interface is published to the client through the data server, providing functions such as three-dimensional scene browsing of the tailings pond, video display, information query and human-computer interaction.

[0067] In S318, the three-dimensional model of the tailings pond and its scene display browsing, video display, information query, human-computer interaction, control settings, etc. are realized through the monitoring client.

[0068] According to the tailings discharge method of the tailings pond disclosed in the present invention, the three-dimensional model of the tailings pond, video data, and detection data are organically combined to perform a three-dimensional analysis of the tailings pond, and are used to realize tailings accumulation morphology analysis and intelligent optimization control of tailings discharge.

[0069] According to the tailings discharge method of the tailings pond disclosed in the present invention, scientific prediction, judgment and control means are adopted to realize remote, automatic and visual control of tailings discharge, no longer relying on personal experience, so that the tailings accumulation can achieve the expected sedimentation effect, provide guarantee for the morphological health and safety of the tailings pond, and at the same time reduce the workload of on-site operators and reduce safety hazards.

[0070] According to the tailings discharge method of the tailings pond disclosed in the present invention, the tailings discharge and switching valve groups and pipelines are automatically flushed by utilizing the water stored in the tailings pond nearby, thereby improving the equipment status and extending the service life of the equipment.

[0071] Figure 4 FIG. 1 is a block diagram of a tailings discharge device for a tailings pond according to an exemplary embodiment. Figure 4 The mine safety analysis device 40 at least includes a data acquisition device 402 , a model module 404 , an analysis module 406 , an emission device 408 and an optimization module 410 .

[0072] In the tailings discharge device of the tailings pond, the data acquisition device 402 is used to obtain the measured data of the tailings pond in real time, and the measured data includes the detection data, video data and three-dimensional data of the tailings pond. Among them, the topography of the tailings pond can be measured to obtain the three-dimensional data of the surface of the tailings pond dam body, and the three-dimensional data can be, for example, but not limited to, the dry beach morphology and water surface morphology of the tailings pond; the tailings concentration and tailings flow can be measured, for example, but not limited to, using a concentration meter and a flow meter to obtain the measured data. The video data can, for example, record water level information, dry beach changes, etc. in real time, and the video data can also be used to monitor the safety status of the on-site equipment of the tailings pond.

[0073] In one embodiment, the data acquisition device 402 includes one or more of a photogrammetric device laser scanner, a radar scanner, an online monitoring system for a tailings pond, and a tailings discharge detection device. Among them, the photogrammetric device can be used to obtain video information, and the laser scanner can obtain three-dimensional data of the tailings pond, such as data in the form of a point cloud. The radar scanner can be used to measure water level information, tailings morphology and other information. The laser scanner, radar scanner and photogrammetric device can be installed in an airborne manner or in a fixed manner, and the present invention is not limited thereto.

[0074] The model module 404 is used to establish a three-dimensional model of the tailings pond according to the measured data and design parameters of the tailings pond. The three-dimensional model can be built according to the three-dimensional data and design parameters, and the three-dimensional identification of the on-site equipment can be established according to the video data and design parameters. In addition, the real-time status of the tailings pond can also be displayed according to the video data.

[0075] The analysis module 406 is used to analyze and predict the tailings accumulation situation based on the measured data, design parameters and three-dimensional model, and generate a tailings discharge strategy based on the analysis and prediction results. Among them, the tailings accumulation situation can be analyzed based on data such as tailings morphology. The ideal tailings accumulation morphology is calculated based on design parameters or manual settings, and the current sand-deficient area and sand-deficient amount can be analyzed based on the tailings accumulation situation and the ideal tailings accumulation morphology, and a tailings discharge strategy is generated accordingly.

[0076] In one embodiment, the analysis module 406 may include a tailings dam width comparison unit, a dam inside and outside comparison unit, a flood control storage capacity analysis unit, a flood discharge weir analysis unit, a drainage well status analysis unit, and a tailings dam geometry analysis unit. Among them, the tailings dam width comparison unit is used to compare the tailings dam width in the measured data with the tailings dam width design value to obtain a tailings dam width comparison result. The dam inside and outside comparison unit is used to compare the dam inside and outside slope ratio in the measured data with the dam inside and outside slope ratio design value to obtain a dam inside and outside comparison result. The flood control storage capacity analysis unit is used to determine the flood control storage capacity analysis result according to the flood control storage capacity, safety superelevation and minimum dry beach length in the measured data. The flood discharge weir analysis unit is used to determine whether the flood discharge weir is blocked according to the flood discharge weir flow in the measured data to obtain a blockage judgment result. The drainage well status analysis unit is used to obtain a drainage well status result according to the drainage well status data in the measured data. The tailings dam geometry analysis unit is used to perform a geometric analysis on the tailings dam morphology in the three-dimensional model through the design parameters to obtain tailings dam analysis data.

[0077] In one embodiment, the analysis module 406 is used to predict the dischargeable capacity of each discharge point based on the analysis and prediction results and the tailings expected data; and to generate a tailings discharge strategy based on the dischargeable capacity and the tailings discharge distribution model. Among them, the tailings discharge equipment can be, for example, but not limited to, a pump with a remote switch function, a cyclone, a slurry valve, etc. For example, the discharge amount of each tailings discharge point can be estimated based on the current tailings accumulation form, the expected tailings accumulation form, the amount of sand lacking in the sand-deficient area, and the tailings flow rate, concentration data, etc., to obtain the dischargeable capacity of each discharge point. And formulate a tailings discharge strategy based on the dischargeable capacity.

[0078] The tailings discharge equipment 408 is used to implement the tailings discharge strategy to achieve tailings discharge from the tailings pond. Among them, the work plan of the tailings discharge equipment within a predetermined time, such as the work sequence and work time, can be arranged according to the tailings discharge strategy. This can be achieved through PLC logic programming, but the present disclosure is not limited to this.

[0079] In one embodiment, the opening and closing time of the tailings discharge device 408 is determined according to the tailings discharge strategy; and the opening and closing sequence of the tailings discharge device 408 is determined according to the tailings discharge strategy. The tailings discharge strategy may be, for example, a control strategy for the discharge device within a predetermined time. The discharge device 408 includes, but is not limited to, a pump with a remote switch function, a cyclone, a slurry valve, etc.

[0080] The tailings discharge device of the tailings pond of the present application can realize real-time monitoring and intelligent control of the tailings accumulation situation of the tailings pond by organically combining and analyzing the measured data of the tailings pond to generate a tailings discharge strategy and control the discharge of tailings accordingly, and can optimize the tailings discharge strategy in real time according to the measured data and the morphological changes of the three-dimensional model, thereby improving the discharge quality and efficiency.

[0081] Figure 5 FIG. 1 is a block diagram of a tailings discharge device for a tailings pond according to another exemplary embodiment. Figure 5 The tailings discharge device 50 of the tailings pond includes at least a data acquisition device 502 , a data acquisition system 504 , a data server 506 and a client 508 .

[0082] In the tailings discharge device of the tailings pond, the data acquisition device 502 is used to collect video data, three-dimensional data, tailings flow, tailings concentration and other data of the tailings pond in real time or at a fixed time, and output control signals to the tailings discharge equipment and pipelines. The data acquisition device 502 at least includes equipment for obtaining measured data such as airborne or fixed laser scanning, radar scanning, photogrammetry, concentration detection sensors and flow sensors. Video data refers to video image information of the overall or key positions of the tailings pond. The three-dimensional model of the tailings pond is established based on the design parameters and measured data of the tailings pond. The design parameters of the tailings pond include: construction drawings and other materials. The measured data include: topographic data obtained by photogrammetry, laser scanning, radar scanning, etc. The tailings discharge equipment and valve group include pumps with remote switching functions, cyclones, slurry valves, flushing water valves, etc. The tailings pond analysis module analyzes the tailings accumulation situation, obtains the sand-deficient area and the amount of sand-deficient, the tailings discharge model, and the desired tailings accumulation form. The tailings discharge model marks the terminal positions of each tailings discharge pipeline in the three-dimensional model of the tailings pond, and plans, divides and represents the tailings storage area radiated by each discharge point.

[0083] Tailings discharge control module realizes the following functions:

[0084] (1) Estimate the tailings discharge point and the discharge amount of each discharge point based on the current tailings accumulation form, the expected tailings accumulation form, the amount of sand shortage in the sand-deficient area, and the tailings flow and concentration data.

[0085] (2) Generate tailings discharge strategy within a certain period of time.

[0086] (3) According to the tailings discharge strategy, preset the working sequence and working time of the tailings discharge automatic control equipment and pipelines.

[0087] (4) Based on the tailings morphology scanned in real time or at regular intervals, the actual storage morphology changes at each discharge point are compared with the estimated morphology to form dynamic feedback and timely adjust the tailings discharge strategy, such as adjusting the working hours of each discharge equipment.

[0088] (5) After the corresponding pipeline is discharged, it will be automatically flushed for a certain period of time according to the program to prevent the pipeline or valve from having residual slurry and drying. The flushing water is drawn from the tailings pond nearby.

[0089] The data server 506 is used to manage three-dimensional data, video data, and detection data; run the tailings pond analysis module, tailings discharge control module, and human-computer interaction module; publish a display interface to the client, and provide functions such as tailings pond three-dimensional scene browsing, video display and information query and human-computer interaction, control settings, etc.

[0090] The client 508 can provide functions such as the three-dimensional model of the tailings pond and its scene display browsing, video display, information query interface, human-computer interaction interface, control settings, etc. The human-computer interaction interface manages or operates the tailings pond model and data, switches different scenes, and performs control settings through the human-computer interaction module.

[0091] In addition, the above-mentioned figures are only schematic illustrations of the processes included in the method according to an exemplary embodiment of the present invention, and are not intended to be limiting. It is easy to understand that the processes shown in the above-mentioned figures do not indicate or limit the time sequence of these processes. In addition, it is also easy to understand that these processes can be performed synchronously or asynchronously, for example, in multiple modules.

[0092] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art that are not claimed by the present invention. The specification and examples are to be considered exemplary only, and the true scope and spirit of the present invention are indicated by the claims.

[0093] It should be understood that the present invention is not limited to the detailed structures, drawings or implementations shown herein, but rather the present invention is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims

1. A method for discharging tailings from a tailings pond, characterized in that: include: Acquire measured data of the tailings pond in real time through a data acquisition device, wherein the measured data includes detection data, video data and three-dimensional data of the tailings pond; Establishing a three-dimensional model of the tailings pond according to the measured data and design parameters of the tailings pond; Analyzing and predicting the tailings accumulation situation based on the measured data, design parameters and the three-dimensional model, and generating a tailings discharge strategy according to the analysis and prediction results; as well as Controlling tailings discharge equipment according to the tailings discharge strategy to achieve tailings discharge from the tailings pond; as well as Continuously correcting the tailings rheological model and consolidation characteristic parameters according to the measured data and the morphological changes of the three-dimensional model, and optimizing the tailings discharge strategy according to the tailings rheological model and consolidation characteristic parameters; The equipment for controlling tailings discharge according to the tailings discharge strategy includes: Determining the opening and closing time of the tailings discharge device according to the tailings discharge strategy; and Determining the opening and closing sequence of the tailings discharge equipment according to the tailings discharge strategy; The tailings accumulation situation is analyzed and predicted based on the measured data, design parameters and three-dimensional model, including one or more of the following situations: comparing the tailings dam width in the measured data with the design value of the tailings dam width to obtain a tailings dam width comparison result; comparing the dam inner and outer slope ratio in the measured data with the design value of the dam inner and outer slope ratio to obtain a dam inner and outer comparison result; determining the flood control storage capacity analysis result according to the flood control storage capacity, safety superelevation and minimum dry beach length in the measured data; judging whether the flood discharge weir is blocked according to the flood discharge weir flow in the measured data to obtain a blockage judgment result; obtaining the drainage well status result according to the drainage well status data in the measured data; geometrically analyzing the tailings dam morphology in the three-dimensional model through the design parameters to obtain tailings dam analysis data; predicting the tailings accumulation morphology and at least one safety parameter according to the design parameters, measured data and tailings slurry rheological property model and tailings consolidation characteristic parameters; wherein the safety parameters include one or more of the following situations: tailings dam width, dam inner and outer slope ratio, flood control storage capacity, flood control storage capacity and safety superelevation, and dry beach length.

2. The method according to claim 1, characterized in that The measured data of the tailings pond obtained in real time through data acquisition equipment include: Acquiring the measured data by photogrammetry equipment; and\or Acquiring the measured data by a laser scanner; and\or Acquiring the measured data by a radar scanner; and\or Obtaining the measured data through an online monitoring system for the tailings pond; and\or The measured data is obtained through a tailings discharge detection device.

3. The method according to claim 1, characterized in that The tailings discharge strategy generated based on the analysis and prediction results includes: Predicting the dischargeable capacity of each discharge point based on the analysis and prediction results and the expected tailings data; and The tailings discharge strategy is generated according to the dischargeable capacity.

4. The method according to claim 1, characterized in that Also includes: The flushing equipment of the tailings pond is opened by timing control to flush the pipeline of the tailings discharge equipment.

5. The method according to claim 1, characterized in that Also includes: The measured data and the three-dimensional model are sent to a display interface in real time.

6. A tailings discharge device for a tailings pond, characterized in that: include: A three-dimensional data acquisition device is used to obtain measured data of the tailings pond in real time, wherein the measured data includes detection data, video data and three-dimensional data of the tailings pond; A model module, used to establish a three-dimensional model of the tailings pond according to the measured data and design parameters of the tailings pond; An analysis module, used to analyze and predict the tailings accumulation situation based on the measured data, design parameters and the three-dimensional model, and generate a tailings discharge strategy according to the analysis and prediction results; Tailings discharge equipment, used to implement the tailings discharge strategy to achieve tailings discharge from the tailings pond; as well as An optimization module, used to continuously correct the tailings rheological model and consolidation characteristic parameters according to the measured data and the morphological changes of the three-dimensional model, and optimize the tailings discharge strategy according to the tailings rheological model and consolidation characteristic parameters; The tailings discharge device is further used to determine the opening and closing time of the tailings discharge device according to the tailings discharge strategy; and to determine the opening and closing sequence of the tailings discharge device according to the tailings discharge strategy; The analysis module includes: a tailings dam width comparison unit, an inside-outside dam comparison unit, a flood control storage capacity analysis unit, a flood discharge weir analysis unit, a drainage well status analysis unit, and a tailings dam geometry analysis unit; wherein the tailings dam width comparison unit is used to compare the tailings dam width in the measured data with the tailings dam width design value to obtain a tailings dam width comparison result; the inside-outside dam comparison unit is used to compare the inside-outside slope ratio of the dam in the measured data with the inside-outside slope ratio design value to obtain a dam inside-outside comparison result; the flood control storage capacity analysis unit is used to determine the flood control storage capacity analysis result according to the flood control storage capacity, safety superelevation and minimum dry beach length in the measured data; the flood discharge weir analysis unit is used to compare the inside-outside slope ratio of the dam in the measured data with the design value of the inside-outside slope ratio to obtain a dam inside-outside comparison result. The unit is used to determine whether the flood discharge weir is blocked according to the flood discharge weir flow in the measured data, and obtain a blockage judgment result; the drainage well status analysis unit is used to obtain a drainage well status result according to the drainage well status data in the measured data; the tailings dam geometry analysis unit is used to perform a geometric analysis on the tailings dam morphology in the three-dimensional model through the design parameters, and obtain tailings dam analysis data; according to the design parameters, measured data, tailings slurry rheological property model, and tailings consolidation characteristic parameters, the tailings accumulation morphology and at least one safety parameter are predicted; wherein the safety parameters include one or more of the following situations: tailings dam width, dam inner and outer slope ratio, flood control storage capacity, flood control storage capacity and safety superelevation, and dry beach length.

7. The device according to claim 6, characterized in that The data acquisition equipment includes one or more of the following: photogrammetry equipment, a laser scanner, a radar scanner, an online monitoring system for a tailings pond, and a tailings discharge detection device.

8. The device according to claim 6, characterized in that Also includes: A data acquisition system is used to transmit the measured data to the model module via wired and / or wireless means.

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