Material taking machine flow detection method, device, equipment, medium and product

Abstract

The invention relates to the technical field of material taking machine flow detection, in particular to a material taking machine flow detection method and device, equipment, a medium and a product, and the method comprises the steps: obtaining the flow integral cumulant of a belt weigher and the pressure integral cumulant of a bucket wheel; judging whether the deviation ratio of the belt weigher flow integral cumulant and the bucket-wheel pressure integral cumulant is within a deviation interval or not; if the deviation ratio of the belt weigher flow integral cumulant and the bucket-wheel pressure integral cumulant is within the deviation interval, the material taking operation is continued; the accuracy of flow detection can be ensured by comparing integral cumulants detected by the belt weigher and the bucket-wheel pressure.

Description

Technical Field

[0001] The present invention relates to the technical field of flow detection of a reclaimer, and in particular to a flow detection method, device, equipment, medium and product of a reclaimer. Background Art

[0002] When approaching the planned workload, the operator needs to estimate the weight of the material between the belt scale and the bucket wheel and stop the bucket wheel from retrieving materials in advance to ensure that the actual workload is consistent with the planned workload. Due to the uncontrollable external environment and equipment status, detection deviations may occur at any time. Objective conditions such as insufficient personnel experience and inaccurate estimates exist, resulting in inaccurate actual workload and retrieving flow of the reclaimer, affecting the reclaiming efficiency. In serious cases, it may cause safety accidents such as material overflowing from the cabin and the bottoming of the ship, which has a serious impact on production and equipment. There is a technical problem in the field of poor accuracy of reclaimer flow detection. Summary of the invention

[0003] The invention provides a method, device, equipment, medium and product for detecting flow rate of a reclaimer, which solves the technical problem of poor accuracy of flow rate detection of a reclaimer.

[0004] In a first aspect, the present invention provides a method for detecting the flow of a material reclaimer, the method comprising: obtaining the integral accumulation of the belt scale flow and the integral accumulation of the bucket wheel pressure; determining whether the deviation rate of the integral accumulation of the belt scale flow and the integral accumulation of the bucket wheel pressure is within a deviation interval; if the deviation rate of the integral accumulation of the belt scale flow and the integral accumulation of the bucket wheel pressure is within the deviation interval, continuing the material reclaiming operation.

[0005] In some embodiments, the method further includes: if the deviation rate of the belt scale flow integral accumulation amount and the bucket wheel pressure integral accumulation amount is not within the deviation interval, performing a self-detection of a reclaimer fault.

[0006] In some embodiments, the self-detection of the material reclaimer fault includes: determining whether the difference between the current calibrated no-load belt weight and the already calibrated no-load belt weight is greater than the no-load belt weight threshold; if the difference between the current calibrated no-load belt weight and the already calibrated no-load belt weight is greater than the no-load belt weight threshold, then determining that the belt scale is faulty.

[0007] In some embodiments, calibrating the no-load belt weight includes: starting the reclaimer belt without load and collecting the no-load belt weight curve; integrating the no-load belt weight curve and calculating the average to obtain the calibrated no-load belt weight.

[0008] In some embodiments, the step of self-detection of material reclaimer fault also includes: determining whether the difference between the current calibrated no-load bucket wheel motor pressure and the existing calibrated no-load bucket wheel motor pressure is greater than the no-load bucket wheel motor pressure threshold; if the difference between the current calibrated no-load bucket wheel motor pressure and the existing calibrated no-load bucket wheel motor pressure is greater than the no-load bucket wheel motor pressure threshold, it is determined that the bucket wheel is faulty.

[0009] In some embodiments, calibrating the no-load bucket wheel motor pressure includes: starting the reclaimer bucket wheel at no load, and when the bucket wheel reaches a preset speed, collecting a pressure curve of the bucket wheel motor; integrating the pressure curve of the bucket wheel motor and calculating the average to obtain a calibrated no-load bucket wheel motor pressure.

[0010] In the second aspect, the present invention provides a material taking machine flow detection device, the device comprising: a data acquisition module, used to obtain the belt scale flow integral accumulation and the bucket wheel pressure integral accumulation; a deviation judgment module, used to judge whether the deviation rate of the belt scale flow integral accumulation and the bucket wheel pressure integral accumulation is within the deviation interval; an execution module, used to continue the material taking operation if the deviation rate of the belt scale flow integral accumulation and the bucket wheel pressure integral accumulation is within the deviation interval.

[0011] In a third aspect, the present invention provides a computer device, including a memory, a processor and a computer program stored in the memory, wherein the processor executes the computer program to implement the steps of any of the above-mentioned methods for detecting the flow rate of a reclaimer.

[0012] In a fourth aspect, the present invention provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of any of the above-mentioned methods for detecting flow rates of a reclaimer.

[0013] In a fifth aspect, the present invention provides a computer program product, comprising a computer program, which, when executed by a processor, implements the steps of any of the above-mentioned methods for detecting flow rates of a reclaimer.

[0014] The present invention provides a method, device, equipment, medium and product for detecting the flow rate of a material reclaimer, wherein the method comprises: obtaining the integral accumulation amount of the belt scale flow rate and the integral accumulation amount of the bucket wheel pressure; judging whether the deviation rate of the integral accumulation amount of the belt scale flow rate and the integral accumulation amount of the bucket wheel pressure is within the deviation interval; if the deviation rate of the integral accumulation amount of the belt scale flow rate and the integral accumulation amount of the bucket wheel pressure is within the deviation interval, continuing the material reclaiming operation; by comparing the integral accumulation amount of the belt scale and the bucket wheel pressure detection, the accuracy of the flow detection can be ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings:

[0016] Figure 1 It is a flow chart of a method for detecting flow of a reclaimer provided in an embodiment of the present application;

[0017] Figure 2 It is a structural schematic diagram of a flow detection device for a reclaimer provided in an embodiment of the present application;

[0018] Figure 3 It is a structural schematic diagram of a reclaimer provided in an embodiment of the present application;

[0019] Figure 4 It is a schematic diagram of a reclaimer material flow detection and precise control process provided by an embodiment of the present application;

[0020] Figure 5 It is a schematic diagram of a self-detection and control process of a material reclaimer provided in an embodiment of the present application.

[0021] In the drawings, the same reference numerals are used for the same components, and the drawings are not drawn to scale. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the scheme of the present invention, and to fully understand and implement how the present invention applies technical means to solve technical problems and achieve the corresponding technical effects, the technical scheme in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is only an embodiment of a part of the present invention, not all of the embodiments. The embodiments of the present invention and the various features in the embodiments can be combined with each other without conflict, and the technical schemes formed are all within the scope of protection of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of the present invention.

[0023] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0024] It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and that, although a logical order is shown in the flowcharts, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0025] When approaching the planned workload, the operator needs to estimate the weight of the material between the belt scale and the bucket wheel and stop the bucket wheel from retrieving materials in advance to ensure that the actual workload is consistent with the planned workload. Due to the uncontrollable external environment and equipment status, detection deviations may occur at any time. Objective conditions such as insufficient personnel experience and inaccurate estimates exist, resulting in inaccurate actual workload and retrieving flow of the reclaimer, affecting the reclaiming efficiency. In serious cases, it may cause safety accidents such as material overflowing from the cabin and the bottoming of the ship, which has a serious impact on production and equipment. There is a technical problem in the field of poor accuracy of reclaimer flow detection.

[0026] Hereinafter, the technical solution of the present application will be described in conjunction with specific embodiments.

[0027] Embodiment 1

[0028] Figure 1 is a flow chart of a method for detecting flow of a reclaimer provided in an embodiment of the present application, such as Figure 1 As shown, in the technical solution of this embodiment, a method for detecting the flow rate of a material reclaimer is provided, and the method includes: obtaining the integral accumulation of the belt scale flow rate and the integral accumulation of the bucket wheel pressure; judging whether the deviation rate of the integral accumulation of the belt scale flow rate and the integral accumulation of the bucket wheel pressure is within the deviation interval; if the deviation rate of the integral accumulation of the belt scale flow rate and the integral accumulation of the bucket wheel pressure is within the deviation interval, continuing the material reclaiming operation.

[0029] The technical problem to be solved in this embodiment is how to improve the accuracy of the flow detection of the reclaimer. In the art, there are technical problems that the actual operation volume and reclaiming flow of the reclaimer are inaccurate, which affects the reclaiming efficiency and even causes safety accidents such as material overflowing from the cabin and the bottoming of the ship.

[0030] The technical solution of this embodiment determines whether the deviation rate of the belt scale flow integral accumulation and bucket wheel pressure integral accumulation is within the deviation range. If it is within the deviation range, it means that the flow detection is relatively accurate and the material reclaiming operation continues. Among them, the belt scale is installed in the middle of the reclaimer arm to weigh the load passing through the belt conveyor; the bucket wheel motor pressure detection switch is installed at the motor oil inlet to detect the load pressure of the hydraulic system in real time, which is used to detect the load change during the rotation of the bucket wheel body.

[0031] In the operation of the material reclaimer, accurate flow detection is crucial. By obtaining the integral accumulation of the belt scale flow and the integral accumulation of the bucket wheel pressure to determine the accuracy of the flow detection, the deviation in the flow detection can be discovered in time. For example, in the actual material reclaiming operation, if the flow is not accurately detected, it will lead to too much or too little material being taken. When too much material is taken, it will cause the material to burst into the cabin, which will not only affect the subsequent operation process, but also pose a threat to the safety of equipment and personnel. Too little material will affect the operation efficiency and cannot meet production needs. This embodiment can ensure the accuracy of flow detection by comparing the integral accumulation of the belt scale and bucket wheel pressure detection. When the deviation rate of the two is within the deviation range, it means that the flow detection of the material reclaimer is reliable and the material reclaiming operation can continue, thereby ensuring the stability and efficiency of the material reclaiming operation. At the same time, this also provides accurate data support for subsequent operation plans, so that the material reclaiming operation can be more accurately unified with the planned quantity, avoiding various problems caused by inaccurate flow detection.

[0032] Embodiment 2

[0033] Based on the above embodiment, the method further includes: if the deviation rate of the belt scale flow integral accumulation amount and the bucket wheel pressure integral accumulation amount is not within the deviation interval, performing a self-detection of the reclaimer fault.

[0034] The technical problem to be solved in this embodiment is how to deal with the deviation rate of the belt scale flow integral accumulation and the bucket wheel pressure integral accumulation not being within the deviation interval. In the art, there is a technical problem that when flow detection is deviated, it cannot be handled in a timely and effective manner, thereby affecting the accuracy and safety of the material taking operation.

[0035] The technical solution of this embodiment is that if the deviation rate of the belt scale flow integral accumulation and the bucket wheel pressure integral accumulation is not within the deviation interval, the reclaimer fault self-detection is performed. In this way, the problem can be discovered and handled in time to ensure the normal progress of the reclaiming operation.

[0036] In the reclaiming operation, once it is found that the deviation rate of the belt scale flow integral accumulation and the bucket wheel pressure integral accumulation is not within the deviation range, it is very important to immediately perform fault self-detection. This can avoid more serious consequences caused by the failure to discover the fault in time. For example, in actual operation, if the fault self-detection is not performed, the reclaiming operation will continue, resulting in a serious discrepancy between the reclaiming amount and the planned amount, and even causing safety accidents such as material overflow or ship bottoming. By performing fault self-detection in time, it can be quickly determined whether the belt scale or the bucket wheel mechanism has a problem, so that personnel can be contacted in time for processing. This can not only improve the accuracy and safety of the reclaiming operation, but also reduce equipment damage and maintenance costs. At the same time, fault self-detection also provides a guarantee for subsequent operations, allowing the reclaiming operation to proceed more smoothly and improve production efficiency.

[0037] Embodiment 3

[0038] On the basis of the above embodiment, the self-detection of the material reclaimer fault includes: determining whether the difference between the current calibrated no-load belt weight and the already calibrated no-load belt weight is greater than the no-load belt weight threshold; if the difference between the current calibrated no-load belt weight and the already calibrated no-load belt weight is greater than the no-load belt weight threshold, it is determined that the belt scale is faulty.

[0039] The technical problem to be solved by this embodiment is how to perform self-detection of reclaimer faults. In the art, there is a technical problem that reclaimer faults are difficult to detect quickly and accurately, resulting in untimely fault handling, which affects the efficiency and safety of reclaiming operations.

[0040] The technical solution of this embodiment determines whether the difference between the currently calibrated no-load belt weight and the previously calibrated no-load belt weight is greater than the no-load belt weight threshold. If so, the belt scale is determined to be faulty. The belt scale is installed in the middle of the reclaimer arm and is used to weigh the load passing through the belt conveyor. During the self-learning calibration, the reclaimer belt is started without load, and the no-load belt weight curve is collected. The curve is integrated and the average value is calculated to obtain the calibrated no-load belt weight.

[0041] During the operation of the reclaimer, timely and accurate fault self-detection is crucial to ensure the smooth progress of the reclaiming operation. By comparing the current calibrated no-load belt weight with the calibrated no-load belt weight, it is possible to quickly determine whether the belt scale has a fault. For example, in the actual reclaiming operation, if the belt scale fails, the belt scale flow integral accumulation will be inaccurate, which will in turn affect the flow detection accuracy of the entire reclaimer. Through this fault self-detection method, when it is found that the deviation rate is not within the deviation range, it can be quickly determined whether it is a problem with the belt scale. If it is determined that the belt scale is faulty, contact personnel in time for inspection and processing, which can avoid inaccurate material reclaiming, low production efficiency and even safety accidents caused by the failure to discover the fault in time. At the same time, this fault self-detection method is simple and easy to implement, using existing technology and equipment, without increasing too much cost, and has high practicality and promotion value.

[0042] Embodiment 4

[0043] On the basis of the above embodiment, the no-load belt weight is calibrated, including: starting the reclaimer belt without load, collecting the no-load belt weight curve; integrating the no-load belt weight curve and calculating the average value to obtain the calibrated no-load belt weight.

[0044] The technical problem to be solved by this embodiment is how to calibrate the weight of an unloaded belt. In the art, there is a technical problem that the unloaded belt weight is not accurately calibrated, which affects the accuracy of the flow detection of the belt scale.

[0045] The technical solution of this embodiment is to start the reclaimer belt without load, collect the weight curve of the no-load belt, integrate the weight curve of the no-load belt and calculate the average value to obtain the calibrated no-load belt weight. The belt scale is used to weigh the load passing through the belt conveyor. Accurately calibrating the no-load belt weight is crucial for subsequent flow detection and reclaiming operations.

[0046] During the working process of the reclaimer, accurate calibration of the no-load belt weight is the basis for ensuring the accuracy of flow detection. By starting the reclaimer belt without load and collecting the no-load belt weight curve, more accurate belt weight information under no-load state can be obtained. The accuracy of calibration can be further improved by integrating the curve and averaging it. For example, in the actual reclaiming operation, if the no-load belt weight is not calibrated accurately, there will be deviations when calculating the integral accumulation of the belt scale flow, thus affecting the flow detection results of the entire reclaimer. After accurately calibrating the no-load belt weight, reliable basic data can be provided for subsequent flow detection, so that the reclaimer can more accurately judge whether the reclaiming flow is within the normal range. At the same time, this also helps to improve the consistency between the actual and planned quantities of the reclaiming operation, and avoid the occurrence of too much or too little reclaiming due to inaccurate flow detection.

[0047] Embodiment 5

[0048] On the basis of the above embodiment, the step of self-detection of material reclaimer fault also includes: determining whether the difference between the current calibrated no-load bucket wheel motor pressure and the existing calibrated no-load bucket wheel motor pressure is greater than the no-load bucket wheel motor pressure threshold; if the difference between the current calibrated no-load bucket wheel motor pressure and the existing calibrated no-load bucket wheel motor pressure is greater than the no-load bucket wheel motor pressure threshold, it is determined that the bucket wheel is faulty.

[0049] The technical problem to be solved by this embodiment is how to perform self-detection of reclaimer faults. In the art, there is a technical problem that reclaimer faults are difficult to detect quickly and accurately, resulting in untimely fault handling, which affects the efficiency and safety of reclaiming operations.

[0050] The technical solution of this embodiment determines whether the difference between the currently calibrated no-load bucket wheel motor pressure and the previously calibrated no-load bucket wheel motor pressure is greater than the no-load bucket wheel motor pressure threshold. If so, it is determined that the bucket wheel is faulty. The bucket wheel motor pressure detection switch is installed at the motor oil inlet to detect the load pressure of the hydraulic system in real time, and is used to detect the load change during the rotation of the bucket wheel body. During the self-learning calibration, the bucket wheel of the reclaimer is started at no load. When the bucket wheel reaches the preset speed, the pressure curve of the bucket wheel motor is collected, and the curve is integrated and averaged to obtain the calibrated no-load bucket wheel motor pressure.

[0051] During the operation of the reclaimer, accurate detection of bucket wheel faults is the key to ensure the smooth progress of the reclaiming operation. By comparing the currently calibrated no-load bucket wheel motor pressure with the existing calibrated no-load bucket wheel motor pressure, it is possible to effectively determine whether the bucket wheel is faulty. For example, in the actual reclaiming operation, if the bucket wheel fails, it will cause inaccurate detection of the bucket wheel motor pressure, which will in turn affect the flow detection and control of the reclaimer. Through this fault self-detection method, when it is found that the deviation rate of the belt scale flow integral accumulation and the bucket wheel pressure integral accumulation is not within the deviation range, it can be quickly determined whether it is a problem with the bucket wheel mechanism. If it is determined to be a bucket wheel fault, contact personnel in time for inspection and processing, which can avoid inaccurate reclaiming, low production efficiency and even safety accidents caused by the failure to discover the fault in time. At the same time, this fault self-detection method is based on existing technology and equipment, is simple and convenient to operate, does not require excessive cost, and has high practicality and promotion value.

[0052] Embodiment 6

[0053] On the basis of the above embodiment, the no-load bucket wheel motor pressure is calibrated, including: starting the reclaimer bucket wheel at no load, and when the bucket wheel reaches a preset speed, collecting the pressure curve of the bucket wheel motor; integrating the pressure curve of the bucket wheel motor and calculating the average to obtain the calibrated no-load bucket wheel motor pressure.

[0054] The technical problem to be solved by this embodiment is how to calibrate the pressure of an unloaded bucket wheel motor. In the art, there is a technical problem that the pressure calibration of an unloaded bucket wheel motor is inaccurate, which affects the accuracy of bucket wheel pressure detection and further affects the flow detection and control of the reclaimer.

[0055] The technical solution of this embodiment is to start the bucket wheel of the reclaimer without load, and when the bucket wheel reaches a preset speed, collect the pressure curve of the bucket wheel motor, integrate the pressure curve of the bucket wheel motor and calculate the average value to obtain the calibrated no-load bucket wheel motor pressure. The bucket wheel motor pressure detection switch is used to detect the load change during the rotation of the bucket wheel body. Accurately calibrating the no-load bucket wheel motor pressure is crucial to ensure the flow detection accuracy of the reclaimer.

[0056] In the working process of the reclaimer, it is of great significance to accurately calibrate the pressure of the no-load bucket wheel motor. By starting the bucket wheel without load and collecting the pressure curve, it is possible to obtain relatively accurate pressure information of the bucket wheel motor under no-load conditions. The accuracy of the calibration can be further improved by integrating the curve and averaging it. For example, in the actual reclaiming operation, if the no-load bucket wheel motor pressure calibration is inaccurate, then there will be a deviation when calculating the integral accumulation of the bucket wheel pressure, thereby affecting the flow detection result of the reclaimer. After accurately calibrating the no-load bucket wheel motor pressure, reliable basic data can be provided for subsequent flow detection and control, so that the reclaimer can more accurately determine whether the reclaiming flow is within the normal range. At the same time, this also helps to improve the consistency between the actual and planned quantities of the reclaiming operation, and avoid the occurrence of too much or too little reclaiming due to inaccurate flow detection. In addition, accurate no-load bucket wheel motor pressure calibration also provides an important basis for equipment maintenance and management, which facilitates the staff to promptly discover abnormal conditions of the bucket wheel mechanism and improve the reliability and stability of the equipment.

[0057] Embodiment 7

[0058] Figure 2 is a structural schematic diagram of a flow detection device for a reclaimer provided in an embodiment of the present application, such as Figure 2 As shown, in the technical solution of this embodiment, a material reclaimer flow detection device is provided, and the device includes: a data acquisition module, used to obtain the integral accumulation of the belt scale flow and the integral accumulation of the bucket wheel pressure; a deviation judgment module, used to judge whether the deviation rate of the integral accumulation of the belt scale flow and the integral accumulation of the bucket wheel pressure is within the deviation interval; an execution module, used to continue the material reclaiming operation if the deviation rate of the integral accumulation of the belt scale flow and the integral accumulation of the bucket wheel pressure is within the deviation interval.

[0059] The technical problem to be solved in this embodiment is how to improve the accuracy of the flow detection of the reclaimer. In the art, there are technical problems that the actual operation volume and reclaiming flow of the reclaimer are inaccurate, which affects the reclaiming efficiency and even causes safety accidents such as material overflowing from the cabin and the bottoming of the ship.

[0060] The technical solution of this embodiment determines whether the deviation rate of the belt scale flow integral accumulation and bucket wheel pressure integral accumulation is within the deviation range. If it is within the deviation range, it means that the flow detection is relatively accurate and the material reclaiming operation continues. Among them, the belt scale is installed in the middle of the reclaimer arm to weigh the load passing through the belt conveyor; the bucket wheel motor pressure detection switch is installed at the motor oil inlet to detect the load pressure of the hydraulic system in real time, which is used to detect the load change during the rotation of the bucket wheel body.

[0061] In the operation process of the material reclaimer, accurate flow detection is crucial. By obtaining the integral accumulation of the belt scale flow and the integral accumulation of the bucket wheel pressure to judge the accuracy of the flow detection, the deviation in the flow detection can be discovered in time. For example, in the actual material reclaiming operation, if the flow is not accurately detected, it will lead to too much or too little material being taken. When too much material is taken, it will cause the material to burst into the cabin, which will not only affect the subsequent operation process, but also pose a threat to the safety of equipment and personnel. Too little material will affect the operation efficiency and cannot meet the production needs. This embodiment can ensure the accuracy of flow detection by comparing the integral accumulation of the belt scale and the bucket wheel pressure detection. When the deviation rate of the two is within the deviation range, it means that the flow detection of the material reclaimer is reliable and the material reclaiming operation can continue, thereby ensuring the stability and efficiency of the material reclaiming operation. At the same time, this also provides accurate data support for the subsequent operation plan, so that the material reclaiming operation can be more accurately unified with the planned amount, avoiding various problems caused by inaccurate flow detection. The other technical features and beneficial effects of this embodiment correspond to the above-mentioned embodiments and are not repeated here.

[0062] Embodiment 8

[0063] In the technical solution of this embodiment, a computer device is provided, including a memory, a processor and a computer program stored in the memory, and the processor executes the computer program to implement the steps of any of the above-mentioned embodiments of the material reclaimer flow detection method.

[0064] In the technical solution of this embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps of the reclaimer flow detection method of any of the above embodiments are implemented.

[0065] In the technical solution of this embodiment, a computer program product is provided, including a computer program, which, when executed by a processor, implements the steps of any of the reclaimer flow detection methods of the above embodiments.

[0066] Each processor may be an application specific integrated circuit (ASIC), a digital signal processor (DSP), a digital signal processing device (DSPD), a programmable logic device (PLD), a field programmable gate array (FPGA), a controller, a microcontroller, a microprocessor or other electronic components to implement the methods in the above embodiments. The computer-readable storage medium may be implemented by any type of volatile or non-volatile storage device or a combination thereof, and the computer-readable storage medium may include, but is not limited to, for example, a random access memory (RAM), a read-only memory (ROM), a flash memory, an EPROM memory, an EEPROM memory, a register, a computer storage medium (such as a hard disk, a floppy disk, a solid-state hard disk, a removable disk, a CDROM, a DVDROM, a Blu-ray disc, etc.).

[0067] The computer-readable storage medium may also store at least one computer executable program / instruction, which may be, for example, a computer-readable instruction. The computer-readable storage medium includes, but is not limited to, for example, a volatile memory and / or a non-volatile memory. The volatile memory may include, for example, a random access memory (RAM) and / or a cache memory (cache), etc. The computer-readable storage medium may include, for example, a read-only memory (ROM), a hard disk, a flash memory, etc. For example, a non-transitory computer-readable storage medium may be connected to a computing device such as a computer, and then, when the computing device runs the computer-readable instructions stored on the computer-readable storage medium, the various methods described above may be performed.

[0068] In addition, the computer device may also include (but not limited to) a data bus, an input / output (I / O) bus, a display, and an input / output device (e.g., a keyboard, a mouse, a speaker, etc.). The processor may communicate with external devices via the I / O bus via a wired or wireless network. In one embodiment, the at least one computer executable instruction may also be compiled into or constitute a software product / computer program product, wherein one or more computer executable instructions are executed by the processor to perform the various functions and / or steps of the method in the embodiments described in the present technology.

[0069] Embodiment 9

[0070] Based on the above embodiments, this embodiment provides an application example.

[0071] This application example involves a device and method for detecting and accurately controlling the material flow rate of a reclaimer. During the reclaiming operation, the reclaimer relies on a belt scale to count the actual operating volume, controls the rotation speed through the bucket wheel motor pressure detection switch, and then controls the reclaiming flow rate in a chain manner. In order to avoid data deviations in the belt scale and the pressure detection switch, personnel need to be arranged for maintenance and zeroing on a regular basis. When approaching the planned operating volume, the operator needs to estimate the weight of the material between the belt scale and the bucket wheel and stop the bucket wheel reclaiming in advance to ensure that the actual operating volume is consistent with the planned volume. Due to the uncontrollable external environment and the state of the equipment, detection deviations may occur at any time. Objective conditions such as insufficient personnel experience and inaccurate estimates exist, resulting in inaccurate actual operating volume and reclaiming flow of the reclaimer, affecting the reclaiming efficiency. In severe cases, it may cause safety accidents such as material bubbling and ship bottoming, which will have a serious impact on production and equipment.

[0072] During the material reclaiming operation of the reclaimer, the present invention uses a statistical method to establish a linear relationship between the integral of the bucket wheel motor pressure and the actual material reclaiming flow integral within a period of time according to the characteristic that the load pressure of the unloaded bucket wheel of the reclaimer is relatively stable in a short period of time, thereby forming a material reclaiming flow algorithm model; a double detection and judgment model is established, and through real-time comparison of the integral of the bucket wheel motor pressure of the reclaimer with the actual material reclaiming flow integral, an interlocking detection of the belt scale and the bucket wheel motor pressure switch is performed, so as to realize real-time perception and timely adjustment of the equipment status and ensure accurate monitoring of the material reclaiming flow data; the latest material reclaiming flow algorithm model is used to conduct real-time statistics and precise control of the actual material reclaiming operation volume, so as to achieve a high degree of unity between the actual and planned quantities of the material reclaiming operation, thereby avoiding inaccurate detection and control of the reclaimer material reclaiming flow, resulting in low operating efficiency, which may cause safety accidents such as material bubbling and ship bottoming in severe cases, bringing serious impact on production and equipment.

[0073] Figure 3 This is a schematic diagram of the reclaimer reclaiming operation. Figure 3As shown, during the reclaiming operation, the reclaimer controls the rotation speed of the rotary motor 3 through the detection value of the pressure detection switch of the bucket wheel 2, and then controls the reclaimer rotation speed, controls the volume of the material pile 4 cut by the bucket wheel 2 per unit time, and realizes automatic control of the reclaiming. The reclaimer relies on the belt scale 1 to count the actual operation volume. When it is close to the planned operation volume, the operator needs to estimate the weight of the material between the belt scale 1 and the bucket wheel 2 and stop the bucket wheel 2 from reclaiming in advance to ensure that the actual operation volume is consistent with the planned volume.

[0074] Due to the uncontrollable external environment and equipment status, detection deviations may occur at any time. Objective conditions such as insufficient personnel experience and inaccurate estimates exist, resulting in inaccurate actual operating volume and material flow of the reclaimer, affecting the reclaiming efficiency of the reclaimer. In severe cases, it may cause safety accidents such as material bubbling out of the cabin and ship bottoming out, which will have a serious impact on production and equipment.

[0075] In order to deal with the above problems and avoid data deviations on belt scales and pressure detection switches, personnel need to be regularly arranged for maintenance and zeroing. When approaching the planned workload, operators need to stay highly focused, make accurate estimates and stop actions. The whole process is not only time-consuming and labor-intensive, but also the problems of data deviation and inaccurate estimates cannot be avoided. Objectively, major safety risks such as material leakage and ship bottoming still exist. The purpose of the present invention is to overcome the above-mentioned shortcomings. During the material reclaiming operation of the material reclaimer, according to the characteristic that the load pressure of the unloaded bucket wheel of the material reclaimer is relatively stable in a short period of time, a linear relationship between the integral of the bucket wheel motor pressure and the integral of the actual material reclaiming flow rate within a period of time is established by using statistical methods, thereby forming a material reclaiming flow rate algorithm model; a dual detection and judgment model is established, and through real-time comparison of the integral of the bucket wheel motor pressure of the material reclaimer with the integral of the actual material reclaiming flow rate, the interlocking detection of the belt scale and the bucket wheel motor pressure switch is performed to realize real-time perception and timely adjustment of the equipment status, thereby ensuring accurate monitoring of the material reclaiming flow rate data; the latest material reclaiming flow rate algorithm model is used to conduct real-time statistics and precise control of the actual material reclaiming operation volume, thereby realizing a high degree of unity between the actual and planned quantities of the material reclaiming operation, thereby realizing a real-time detection and precise control method of the material reclaiming flow rate and the actual cumulative amount of the material reclaimer.

[0076] The reclaimer reclaiming flow detection and precision control device consists of a mechanical part and a control part. The mechanical part consists of a belt scale and a bucket wheel motor pressure detection switch. The belt scale is installed in the middle of the reclaimer arm and is used to weigh the load passing through the belt conveyor. The bucket wheel motor pressure detection switch is installed at the motor oil inlet to detect the load pressure of the hydraulic system in real time and is used to detect the load change during the rotation of the bucket wheel body. The belt scale and bucket wheel motor pressure detection switch are common general components, and the specific structure will not be introduced in detail.

[0077] See the flow chart of material flow detection and precise control of the reclaimer for details. Figure 4 .

[0078] Step 1: Get started.

[0079] Process 2: The reclaimer belt scale starts self-learning and calibration, calibrates the weight of the unloaded belt, and simultaneously starts process 11.

[0080] Process 3: The reclaimer belt starts without load.

[0081] Process 4: The reclaimer determines whether the belt has reached normal speed. If so, it goes to process 3, otherwise it goes to process 5.

[0082] Process 5: The reclaimer starts to collect the M1 curve of the belt weight when it is unloaded.

[0083] Process 6: The reclaimer runs continuously for a period of time T0, which is related to the belt length L and the belt speed v2, and is generally not less than 2 turns.

[0084] Process 7: The reclaimer obtains the average weight based on the integral of the belt weight as the weight self-learning calibration value M2.

[0085] Right now,

[0086] Process 8: The reclaimer determines whether the deviation between the self-learning calibration value M2 and the last calibration value is too large. If so, go to process 9, contact personnel to check and handle the belt scale and perform self-learning calibration again, otherwise go to process 10.

[0087] Process 9: Contact personnel for inspection and processing, and then perform self-learning calibration again.

[0088] Process 10: The reclaimer belt scale completes self-learning calibration.

[0089] Process 11: The reclaimer starts the bucket wheel motor detection switch self-detection synchronously.

[0090] Process 12: The reclaimer determines whether the pressure value of the bucket wheel motor detection switch is zero. If not, go to process 13. The reclaimer bucket wheel motor detection switch is damaged or the system fails. After arranging inspection and treatment, go to process 11 for self-test again. If yes, go to process 14. The reclaimer bucket wheel motor detection switch self-test is normal.

[0091] Process 13: If the detection switch of the bucket wheel motor of the reclaimer is damaged or the system fails, arrange for inspection and processing. After the processing is completed, proceed to process 11.

[0092] Process 14: The self-test of the bucket wheel motor detection switch of the reclaimer is normal and the self-test is completed.

[0093] Process 15: The reclaimer starts the self-learning calibration of bucket wheel no-load pressure.

[0094] Process 16: The bucket wheel of the reclaimer starts to idle.

[0095] Process 17: The reclaimer determines whether the bucket wheel has reached the normal speed. If so, it goes to process 18 and the bucket wheel machine starts to collect the pressure value curve P1 of the reclaimer bucket wheel motor. Otherwise, it continues to idle and goes to process 16.

[0096] Process 18: The reclaimer starts collecting the bucket wheel motor pressure value curve P1.

[0097] Process 19: The reclaimer runs continuously for a period of time T1, which is related to the angular velocity of the bucket wheel and generally rotates no less than 3 turns.

[0098] Process 20: The reclaimer integrates the bucket wheel motor pressure value within time T1 and obtains the average value as the pressure self-learning calibration value Y1.

[0099] Right now

[0100] Process 21: The reclaimer determines whether the deviation between the self-learning calibration value Y1 and the last calibration value is too large. If so, go to process 22, contact personnel to check and handle the bucket wheel mechanism and then perform self-learning calibration again, otherwise go to process 23.

[0101] Process 22: Contact personnel to check and handle the problem and then perform self-learning calibration again.

[0102] Process 23: The reclaimer completes the self-learning calibration of the bucket wheel no-load pressure.

[0103] Process 24: The reclaimer receives the task Q3 and starts the reclaiming operation.

[0104] Process 25: The reclaimer reads the bucket wheel motor pressure value P2 in real time.

[0105] Process 26: The reclaimer calculates the load pressure value P3.

[0106] Right now

[0107] Process 27: The reclaimer runs continuously for a period of time T2. T2 is generally related to the angular velocity of the bucket wheel, and generally rotates no less than 3 times.

[0108] Process 28: The reclaimer calculates the load pressure of the bucket wheel motor from T1 to T1+T2, integrates it, and obtains the average value Y2.

[0109] Right now

[0110] Process 29: After the reclaimer records a period of time T3, the belt scale instantaneous flow rate Q1.

[0111] T3 is the time from when the material starts to be grabbed by the bucket wheel to when it reaches the belt scale.

[0112] T3=T4+T5+T6.

[0113] T4 is the time from when the bucket wheel starts grabbing the material to when the bucket wheel starts throwing the material to the discharge plate.

[0114] D is the bucket wheel diameter; v1 is the bucket wheel speed.

[0115] T5 is the time from when the material starts to be thrown from the discharge plate to when it flows into the guide chute.

[0116] h is the height of the unloading plate.

[0117] T6 is the time it takes for the material to flow into the guide chute and into the belt scale.

[0118] L1 is the distance from the guide trough to the belt scale, and v2 is the belt speed.

[0119] Process 30: The reclaimer calculates the average value Y2 of the belt flow integral of the belt scale at T1+T3 and T1+T2+T3.

[0120] Process 31: The reclaimer calculates the proportionality coefficient K between the load pressure and the belt scale flow rate. K = Y1 / Y2.

[0121] Process 32: The reclaimer completes the establishment and assignment of the reclaiming flow algorithm model.

[0122] That is, q=K*(P-Y1); among them, q is the instantaneous flow rate of bucket wheel material reclaiming, K is the proportional coefficient of load pressure and belt flow, P is the real-time pressure value of bucket wheel motor, and Y1 is the integrated average value during the no-load time T1 of the reclaimer.

[0123] Process 33: The reclaimer records the real-time cumulative operation quantity Q of the reclaimer during time T4 through the integral formula.

[0124] That is T4 is the time difference from the start of reclaiming to the current time, and q is the instantaneous flow rate of bucket wheel reclaiming.

[0125] Process 34: The reclaimer continues to operate.

[0126] Process 35: The reclaimer starts the double detection of the reclaiming flow rate. It is started every once in a while.

[0127] Process 36: The reclaimer reads the belt scale flow integral cumulative amount Q2,

[0128] Right now T3 is the time it takes for the material to go from the bucket wheel to the belt scale; T4 is the time difference from when the reclaimer starts reclaiming materials to the current time; M3 is the real-time flow of the belt scale.

[0129] Process 37: The reclaimer reads the bucket wheel pressure integral accumulation Q1,

[0130] Right now T4 is the time difference from when the reclaimer starts to reclaim to the current time; K is the proportional coefficient of load pressure and belt flow, P is the real-time pressure value of the bucket wheel motor, and Y1 is the integrated average value of the reclaimer during the no-load time T1.

[0131] Process 38: The reclaimer determines whether the deviation rate of the bucket wheel pressure integral accumulation Q1 and the belt scale flow integral accumulation Q2 is lower than the normal range, generally lower than 3‰. If so, go to process 34 and continue the operation. Otherwise, go to process 39. The reclaimer determines whether it is the belt scale or the bucket wheel mechanism failure through the belt scale belt weight self-learning calibration and the bucket wheel detection pressure self-learning calibration, and contacts personnel for processing.

[0132] Process 39, the reclaimer starts the fault self-detection, through the belt scale belt weight self-learning calibration and bucket wheel detection pressure self-learning calibration, determine whether it is the belt scale or bucket wheel mechanism failure, and contact personnel to deal with it. Detailed self-detection and control process as follows Figure 5 shown.

[0133] Figure 5 :Self-detection and control flow chart of faults of reclaimer bucket wheel and belt scale

[0134] Process 40: The reclaimer completes the interlocking test of the bucket wheel pressure switch and the belt scale.

[0135] Process 41: The reclaimer determines whether the bucket wheel pressure integral accumulation Q1 is less than the planned reclaiming amount Q3. If so, it goes to process 34 and continues the operation. Otherwise, it goes to process 42 and the reclaimer stops reclaiming with the bucket wheel.

[0136] Process 42: The reclaimer stops the bucket wheel reclaiming operation.

[0137] Process 43: The actual quantity and planned quantity of the reclaimer's reclaiming operation are unified.

[0138] This application example uses statistical methods to establish a linear relationship between the integral of the bucket wheel motor pressure and the integral of the actual reclaiming flow rate over a period of time based on the relatively stable load pressure of the bucket wheel when the reclaimer is unloaded for a short period of time, and forms a reclaiming flow rate algorithm model. The latest reclaiming flow rate algorithm model is used to calculate the actual reclaiming operation volume, achieving a high degree of unity between the actual and planned reclaiming operation volumes.

[0139] This application example establishes a dual detection judgment model. By comparing the integral of the bucket wheel motor pressure of the reclaimer with the integral of the actual reclaiming flow rate in real time, the interlock detection of the belt scale and the bucket wheel motor pressure switch is performed to achieve real-time perception and timely adjustment of the equipment status, ensuring accurate monitoring of the reclaiming flow rate data.

[0140] The mechanical and electrical components involved in this application example are relatively simple, with low maintenance difficulty, convenient use, easy to use, and have extremely high promotion value.

[0141] This method has been applied to the R7 reclaimer of the Guoneng Huanghua Port Company, effectively avoiding safety accidents such as low production efficiency, material bubbling, and ship bottom dragging caused by inaccurate material control of the reclaimer, as well as serious impacts on production and equipment.

[0142] In the embodiments provided by the present invention, it should be understood that the disclosed devices and methods can also be implemented in other ways. The device embodiments described above are merely schematic. For example, the flowcharts and block diagrams in the accompanying drawings show the possible architecture, functions and operations of the devices, methods and computer program products according to multiple embodiments of the present invention. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of a code, and the above-mentioned module, a program segment or a part of a code contains one or more executable instructions for implementing the specified logical functions. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in an order different from that marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flowchart, and the combination of boxes in the block diagram and / or flowchart can be implemented with a dedicated hardware-based system that performs a specified function or action, or can be implemented with a combination of dedicated hardware and computer instructions.

[0143] It should be noted that, in the present invention, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element limited by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0144] Although the embodiments disclosed in the present invention are as above, the above contents are only embodiments adopted for facilitating the understanding of the present invention and are not intended to limit the present invention. Any technician in the technical field to which the present invention belongs can make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed in the present invention, but the patent protection scope of the present invention shall still be subject to the scope defined in the attached claims.

Claims

1. A method for detecting flow rate of a reclaimer, characterized in that: The method comprises: Obtain the integral accumulation of belt scale flow and bucket wheel pressure; Determine whether the deviation rate of the belt scale flow integral accumulation amount and the bucket wheel pressure integral accumulation amount is within the deviation range; If the deviation rate of the belt scale flow integral accumulation amount and the bucket wheel pressure integral accumulation amount is within the deviation range, the material taking operation continues.

2. The method for detecting flow rate of a reclaimer according to claim 1, characterized in that: The method further comprises: If the deviation rate of the belt scale flow integral accumulation amount and the bucket wheel pressure integral accumulation amount is not within the deviation range, the reclaimer fault self-detection is performed.

3. The method for detecting flow rate of a reclaimer according to claim 2, characterized in that: The reclaimer fault self-detection comprises: Determine whether the difference between the currently calibrated no-load belt weight and the previously calibrated no-load belt weight is greater than the no-load belt weight threshold; If the difference between the currently calibrated no-load belt weight and the previously calibrated no-load belt weight is greater than the no-load belt weight threshold, the belt scale is determined to be faulty.

4. The method for detecting flow rate of a reclaimer according to claim 3, characterized in that: The nominal unloaded belt weight includes: Start the reclaimer belt without load and collect the weight curve of the belt without load; The no-load belt weight curve is integrated and averaged to obtain a calibrated no-load belt weight.

5. The method for detecting flow rate of a reclaimer according to claim 2, characterized in that: The step of self-detection of the fault of the reclaimer also includes: Determine whether the difference between the currently calibrated no-load bucket wheel motor pressure and the previously calibrated no-load bucket wheel motor pressure is greater than the no-load bucket wheel motor pressure threshold; If the difference between the currently calibrated no-load bucket wheel motor pressure and the previously calibrated no-load bucket wheel motor pressure is greater than the no-load bucket wheel motor pressure threshold, it is determined that the bucket wheel is faulty.

6. The method for detecting flow rate of a reclaimer according to claim 5, characterized in that: Calibrate the no-load bucket wheel motor pressure, including: Start the bucket wheel of the reclaimer without load, and when the bucket wheel reaches the preset speed, collect the pressure curve of the bucket wheel motor; The pressure curve of the bucket wheel motor is integrated and averaged to obtain a calibrated no-load bucket wheel motor pressure.

7. A flow detection device for a reclaimer, characterized in that: The device comprises: A data acquisition module, used to obtain the integral accumulation of belt scale flow and bucket wheel pressure; A deviation judgment module, used to judge whether the deviation rate of the belt scale flow integral accumulation amount and the bucket wheel pressure integral accumulation amount is within the deviation range; The execution module is used to continue the material taking operation if the deviation rate of the belt scale flow integral accumulation amount and the bucket wheel pressure integral accumulation amount is within the deviation interval.

8. A computer device comprising a memory, a processor and a computer program stored in the memory, characterized in that: The processor executes the computer program to implement the steps of the reclaimer flow detection method according to any one of claims 1 to 6.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the reclaimer flow detection method described in any one of claims 1 to 6 are implemented.

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the reclaimer flow detection method described in any one of claims 1 to 6 are implemented.

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