Control method, device, equipment and medium of rod mill feeding system

Abstract

The application discloses a kind of control method, device, equipment and medium of rod mill feeding system, belong to metallurgical technical field.Rod mill feeding system includes sector valve, the sector valve is used to adjust the feeding amount of rod mill, this method includes: the actual feeding amount and target feeding amount of the rod mill are obtained;If the difference of the actual feeding amount subtracts the target feeding amount is greater than the first difference threshold value of pre-set, then control the sector valve executes the closing action of pre-set first length;If the difference is less than the second difference threshold value of pre-set, then control the sector valve executes the opening action of pre-set second length;Wherein, the first difference threshold value is greater than 0, and the second difference threshold value is less than 0.The method can make that the adjustment of sector valve opening degree each time is fine tuning, guarantee the accuracy of each adjustment, and then make that the final deviation is smaller or even has not, let rod mill can be kept in efficient working state.

Description

Technical Field

[0001] This invention relates to the field of metallurgical technology, and in particular to a control method, device, equipment and medium for a rod mill feeding system. Background Technology

[0002] Rod mills are important sand-making equipment in the iron ore and building materials production lines of mining companies' water plants. Continuous and stable supply of raw materials to the rod mill ensures its efficient operation. The rod mill adopts a two-end feeding and middle discharge working mode. The raw materials in the hopper are fed into the rod mill after passing through a sector valve, a flat belt, and an inclined belt.

[0003] Currently, the feed rate of the rod mill is adjusted by regulating the opening of the sector valve to ensure efficient operation. When adjusting the sector valve opening, technicians adjust the actual opening based on the required opening. However, this manual adjustment method results in low precision and poor timeliness, reducing the efficiency of the rod mill. Summary of the Invention

[0004] In view of the above problems, the present invention is proposed to provide a control method for a rod mill feeding system that solves the above problems. When there is a certain deviation between the actual feed rate and the target feed rate of the rod mill, the method controls the sector valve to perform an opening or closing action to reduce the deviation to meet the requirements. Moreover, by controlling the opening or closing action time to be fixed, each adjustment can be fine-tuned, ensuring the accuracy of each adjustment, thereby making the final deviation small or even zero, allowing the rod mill to maintain a high-efficiency working state.

[0005] In a first aspect, the present invention provides a control method for a rod mill feeding system, the rod mill feeding system including a sector valve, the sector valve being used to adjust the feed rate of the rod mill, the method comprising:

[0006] Obtain the actual feed rate and target feed rate of the rod mill;

[0007] If the difference between the actual feed amount and the target feed amount is greater than a preset first difference threshold, then the sector valve is controlled to perform a closing action for a preset first duration.

[0008] If the difference is less than a preset second difference threshold, then the sector valve is controlled to perform an opening action for a preset second duration;

[0009] Wherein, the first difference threshold is greater than 0, and the second difference threshold is less than 0.

[0010] Optionally, obtaining the actual feed rate and target feed rate of the rod mill includes:

[0011] At each preset third time interval, the actual feed rate and the target feed rate of the rod mill are obtained once.

[0012] Optionally, the rod mill feeding system further includes a belt and a belt scale arranged on the belt, wherein the third duration is the ratio of the distance between the sector valve and the belt scale to the belt speed.

[0013] Optionally, the sector valve includes a first sector valve and a second sector valve, and each sector valve corresponds to a hopper. The method further includes:

[0014] Obtain the material level in the silo;

[0015] If the material level in the hopper corresponding to the first sector valve is lower than the preset material level threshold, the first sector valve is controlled to enter the closed state, and the second sector valve corresponding to the hopper with the material level higher than the material level threshold is controlled to enter the open state.

[0016] Wherein, the first sector valve is a sector valve that is currently in the open state, and the second sector valve is a sector valve that is currently in the closed state.

[0017] Optionally, after obtaining the actual feed rate and target feed rate of the rod mill, the method further includes:

[0018] If the difference is less than a preset third difference threshold, the first sector valve is controlled to enter the closed state, and the second sector valve corresponding to the hopper with the material level higher than the material level threshold is controlled to enter the open state.

[0019] The third difference threshold is less than the second difference threshold.

[0020] Optionally, the method further includes:

[0021] Obtain the running time of the first sector valve;

[0022] If the runtime exceeds a preset time threshold, the first sector valve is controlled to enter the closed state, and the second sector valve corresponding to the hopper with the material level higher than the material level threshold is controlled to enter the open state.

[0023] Optionally, the method further includes:

[0024] Obtain the opening degree of the sector valve before and after performing the opening or closing action a preset number of times;

[0025] If the change in opening degree before and after is less than a preset change threshold, an alarm will be triggered.

[0026] Secondly, the present invention provides a control device for a rod mill feeding system, the rod mill feeding system including a sector valve, the sector valve being used to adjust the feed rate of the rod mill, the device comprising:

[0027] The acquisition module is used to acquire the actual feed rate and the target feed rate of the rod mill;

[0028] The first control module is used to control the sector valve to perform a closing action for a preset first duration if the difference between the actual feed amount and the target feed amount is greater than a preset first difference threshold.

[0029] The second control module is used to control the sector valve to perform an opening action for a preset second duration if the difference is less than a preset second difference threshold.

[0030] Wherein, the first difference threshold is greater than 0, and the second difference threshold is less than 0.

[0031] Thirdly, the present invention provides an electronic device comprising: a memory and a processor, the memory and the processor being communicatively connected to each other, the memory storing computer instructions, and the processor executing the computer instructions to perform the method as described in the first aspect.

[0032] Fourthly, the present invention provides a computer-readable storage medium storing computer instructions for causing the computer to perform the method as described in the first aspect.

[0033] The technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:

[0034] The control method, apparatus, equipment, and medium for a rod mill feeding system provided in this invention include a sector valve. The sector valve is used to adjust the feed rate of the rod mill, allowing the acquisition of the actual feed rate and the target feed rate to understand the current operating efficiency of the rod mill. If the difference between the actual feed rate and the target feed rate is greater than a preset first difference threshold, indicating that the actual feed rate is significantly larger than the target feed rate, the sector valve is controlled to perform a preset first-duration closing action, quantitatively reducing the opening of the sector valve and quantitatively reducing the actual feed rate, thereby reducing the difference. If the difference is less than a preset second difference threshold, indicating that the actual feed rate is significantly smaller than the target feed rate, the sector valve is controlled to perform a preset second-duration opening action, quantitatively increasing the opening of the sector valve and quantitatively increasing the actual feed rate, thereby reducing the difference. This ensures a relatively stable raw material input to the rod mill, maintaining a high-efficiency operating state. The first difference threshold is greater than 0, and the second difference threshold is less than 0. This method allows for fine-tuning with each adjustment, ensuring the accuracy of each adjustment and resulting in minimal or even no final deviation, allowing the rod mill to maintain a highly efficient working state.

[0035] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and in order to make the above and other objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention are described below. Attached Figure Description

[0036] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0037] Figure 1 This is a flowchart of a control method for a rod mill feeding system provided in an embodiment of the present invention;

[0038] Figure 2 This is a schematic diagram of the valve port structure of a sector valve provided in an embodiment of the present invention;

[0039] Figure 3 This is a schematic diagram of the valve port structure of a modified sector valve provided in an embodiment of the present invention;

[0040] Figure 4 This is a structural block diagram of a control device for a rod mill feeding system provided in an embodiment of the present invention. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0042] Before providing a detailed description of the control method for a rod mill feeding system provided in this embodiment of the invention, a brief introduction to the relevant implementation environment will be given first.

[0043] In this embodiment, the feeding system of the rod mill is used to transport raw materials to the rod mill. The feeding system includes a hopper, a sector valve, a flat belt, and an inclined belt. The hopper contains raw materials, and the sector valve is located at the outlet of the hopper. The raw materials first exit from the sector valve and are then transported to the rod mill via the flat and inclined belts. The output of raw materials is controlled by adjusting the opening of the sector valve; a larger opening results in a larger output, and a smaller opening results in a smaller output, thus controlling the feed rate to the rod mill. A belt scale is installed on the inclined belt to weigh the raw materials on it. The rod mill adopts a two-end feeding and middle discharge operating mode.

[0044] Next, the control method of the rod mill feeding system provided in the embodiments of the invention will be described in detail with reference to the accompanying drawings.

[0045] Figure 1 This is a flowchart of a control method for a rod mill feeding system provided in an embodiment of the present invention, as shown below. Figure 1 As shown, the method includes steps S110-S130.

[0046] Step S110: Obtain the actual feed rate and target feed rate of the rod mill.

[0047] In this embodiment, the instantaneous value measured by the belt scale is the actual feed rate of the rod mill. The target feed rate is set by technicians based on actual production conditions. Both the actual feed rate and the target feed rate are measured in mass units.

[0048] Following step S110, the method further includes:

[0049] Determine the initial opening of the sector valve based on the target feed rate, and then open the sector valve to the initial opening.

[0050] This can be understood as follows: after the sector valve is opened to its initial position, the raw material will flow from the valve opening to the conveyor belt. At this time, the discharge rate from the valve opening is the actual feed rate. The actual feed rate needs to be equal to or close to the target feed rate to meet the needs of the rod mill. To ensure the timely delivery of raw materials, the sector valve can be controlled to open again after the conveyor belt has been running for a certain period of time. This certain period can be 10 seconds.

[0051] Figure 2 This is a schematic diagram of the valve port structure of a sector valve provided in an embodiment of the present invention, as shown below. Figure 2As shown, the valve port 1 of the sector valve is a large rectangle. Under a unit opening degree, the discharge rate of the sector valve is relatively large. When adjusting the actual feed rate, and the adjustment amount is relatively small, the sector valve needs to be changed to a smaller opening degree. This requires very high adjustment precision, making adjustment difficult. If the discharge rate of the sector valve decreases under a unit opening degree, i.e., by changing to a larger opening degree to achieve the same increase or decrease, then particularly high adjustment precision is not required, reducing the difficulty of adjustment. To solve this problem, the valve port of the sector valve is now modified.

[0052] Figure 3 This is a schematic diagram of the valve port structure of a modified sector valve provided in an embodiment of the present invention, as shown below. Figure 3 As shown, by sealing both ends of the original sector valve's valve port, a "stacked" valve port 2 structure is obtained, which reduces the cross-sectional area of ​​the valve port and the amount of raw material discharged per unit opening. This means that when changing the same actual feed rate, a larger opening needs to be changed, thus reducing the requirements for adjustment accuracy.

[0053] Step S120: If the difference between the actual feed amount and the target feed amount is greater than the preset first difference threshold, then control the sector valve to perform a preset first duration of closing action.

[0054] Among them, the first difference threshold is greater than 0.

[0055] In this embodiment, if the difference between the actual feed amount and the target feed amount is greater than a preset first difference threshold, it indicates that there is a certain deviation between the actual feed amount and the target feed amount. Furthermore, if the actual feed amount is greater than the target feed amount, it means that the actual feed amount is too high, and the actual feed amount needs to be reduced to decrease the difference. At this time, the control sector valve performs a closing action for a first duration, causing the opening of the sector valve to decrease, and the reduction amount is a fixed value.

[0056] In this embodiment, the sector valve performing a preset first-duration closing action means controlling the on-time of the sector valve's electrical closing circuit to be the first duration. The electrical closing circuit is used to control the sector valve to perform the closing action. The first duration is the pulse time for closing the sector valve. Typically, the first duration is set relatively short, for example, 0.1 seconds. The short first duration causes the sector valve's closing action to stop quickly, so the reduction in the sector valve's opening degree each time is also very small, resulting in very high precision in each adjustment.

[0057] If, after the first cycle ends (after executing steps S110-S120 once), i.e. after executing a shutdown action, the difference between the actual feed amount and the target feed amount is still greater than the preset first difference threshold in the second cycle, then another shutdown action of the first duration is executed. This cycle continues until the difference is less than or equal to the first difference threshold, at which point the shutdown action is no longer executed.

[0058] Step S130: If the difference is less than the preset second difference threshold, then control the sector valve to perform an opening action for a preset second duration.

[0059] Among them, the second difference threshold is less than 0.

[0060] In this embodiment, if the difference is less than the preset second difference threshold, it indicates that there is a certain deviation between the actual feed amount and the target feed amount, and the actual feed amount is less than the target feed amount. Therefore, the actual feed amount needs to be increased, that is, the opening of the sector valve needs to be increased. So, the sector valve is controlled to perform an opening action to increase the opening of the sector valve, and the execution time is the second duration, so that the opening of the sector valve increases, and the increase is a fixed value.

[0061] The sector valve's opening action, which is preset to a second duration, is controlled by the electrical opening circuit of the sector valve, which is used to control the sector valve to perform the opening action. The second duration is the pulse time for opening the sector valve. Usually, the second duration is set relatively short, such as 0.1 seconds. This short second duration causes the sector valve's opening action to stop quickly, so the increase in the sector valve's opening degree each time is also very small, resulting in very high precision in each adjustment.

[0062] If, after the first cycle ends (after executing steps S110 and S130 once), that is, after executing an opening action once, the difference between the actual feed amount and the target feed amount is still less than the second difference threshold in the second cycle, then another opening action of the second duration is executed, and so on, until the difference is greater than or equal to the second difference threshold, and the opening action is no longer executed.

[0063] In other words, to adjust the difference to between the first and second difference thresholds, it may be necessary to perform the opening action multiple times or the closing action multiple times.

[0064] In this embodiment, if the difference is greater than or equal to the second difference threshold and less than or equal to the first difference threshold, the opening of the sector valve is not adjusted. For example, the first difference threshold can be 5, and the second difference threshold can be -5.

[0065] This can be understood as the range of values ​​between the first and second difference thresholds forming an allowable deviation range. When the difference is within this allowable deviation range, it means that the deviation between the actual feed rate and the target feed rate is acceptable, and there is no need to adjust the opening of the sector valve. At this time, the working efficiency of the rod mill is still relatively high. If the difference is not within this allowable deviation range, then it is necessary to adjust the opening of the sector valve to make the rod mill work in a high-efficiency state.

[0066] In this embodiment, if the first duration and the second duration are the same, the opening degree of the sector valve will return to its original opening degree after one opening action and one closing action. Therefore, the first duration and the second duration can be set differently, so that the opening degree of the sector valve will change more slightly after one opening action and one closing action, which can further achieve fine-tuning of the opening degree. This adjustment method is called the time difference adjustment method. The current opening degree of the sector valve can be calculated according to the following formula:

[0067] K = K0 + n1*K1 - n2*K2;

[0068] Where K represents the current opening degree, K0 represents the original opening degree, n1 represents the number of times the opening action is performed, K1 represents the change in opening degree after one opening action, n2 represents the number of times the closing action is performed, and K2 represents the change in opening degree after one closing action. By controlling the values ​​of n1 and n2, the depth of the opening degree can be finely adjusted.

[0069] Optionally, step S110 includes:

[0070] At each preset third time interval, the actual feed rate and target feed rate of the rod mill are obtained once.

[0071] In this embodiment, the third duration is the interval between each cycle. That is, steps S110-S130 are executed once every third duration.

[0072] Optionally, the third duration is the ratio of the distance between the sector valve and the belt scale to the belt speed.

[0073] In this embodiment, the actual feed rate changes each time the opening of the sector valve is adjusted. However, the change in the actual feed rate is only reflected when the raw material moves from the sector valve to the belt scale, which is detected by the belt scale. Therefore, by first calculating the distance between the sector valve and the belt scale, and then calculating the ratio of the distance to the belt speed, the time required for the raw material to move from the sector valve to the belt scale can be obtained. This time is the third time interval.

[0074] In this embodiment, if there are multiple sector valves, for example, some feeding systems have three sector valves, the time required for the raw material from each sector valve to move to the belt scale is calculated, and the longest time is taken as the third time. In this way, the raw material corresponding to the other shorter times can reach the belt scale earlier, and the obtained third time is more reliable.

[0075] In this embodiment, the opening of the sector valve can also be adjusted using analog signals. A continuously changing electrical signal is used to control the opening of the sector valve, with the signal magnitude proportional to the opening. For example, a target opening corresponding to a target feed rate is determined, and the opening of the sector valve is controlled to be the target opening. Specifically, the sector valve can be opened or closed by a hydraulic push rod. The stroke of the hydraulic push rod directly affects the opening of the sector valve, so different strokes correspond to different openings. Once the target opening is obtained, the target stroke corresponding to the target opening is determined, and then the stroke of the hydraulic push rod is controlled to be the target stroke, thus making the opening of the sector valve the target opening. However, in this method, both the target opening and the target stroke are analog signals, and some feeding systems do not have analog input functionality, so this method cannot be used. However, feeding systems generally have digital input functionality, and the method in steps S110-S130 adjusts the opening of the sector valve using digital input, so the method in steps S110-S130 can be used to adjust the opening of the sector valve, making it widely applicable.

[0076] The stroke of the hydraulic push rod can be detected by a displacement sensor, and the stroke data reflects the opening degree of the sector valve.

[0077] Optionally, the method also includes:

[0078] Obtain the opening degree of the sector valve before and after performing a preset number of opening or closing actions; if the change in opening degree before and after is less than a preset change threshold, an alarm is triggered.

[0079] In this embodiment, an early warning system can be implemented for sector valve opening / closing failures. If the sector valve is controlled to open after a preset number of operations, but the opening degree remains unchanged or changes very little, it indicates that the sector valve opening operation has failed, and an alarm is triggered to alert technicians. Similarly, if the sector valve is controlled to close after a preset number of operations, but the opening degree remains unchanged or changes very little, it indicates that the sector valve closing operation has failed, and an alarm is triggered to alert technicians.

[0080] The preset number of attempts can be 3.

[0081] Optionally, the sector valve includes a first sector valve and a second sector valve, and the method further includes:

[0082] Obtain the material level of the silo; if the material level of the silo corresponding to the first sector valve is lower than the preset material level threshold, control the first sector valve to enter the closed state, and control the second sector valve corresponding to the silo with the material level higher than the material level threshold to enter the open state.

[0083] The first sector valve is currently in the open state, and the second sector valve is currently in the closed state.

[0084] In this embodiment, there may be multiple sector valves. The states of the sector valves include open, closed, maintenance, and fault states. The open state may include fully open and partially open. Sector valves in maintenance or fault states do not participate in the above control; that is, neither the first sector valve nor the second sector valve is in a maintenance or fault state.

[0085] Each sector valve corresponds to a hopper, and the material level in each hopper can be monitored in real time. If the material level in the currently used hopper is too low, the actual feed rate may be insufficient. However, when controlling the feeding system on-site, only one of multiple sector valves may be opened. If the material level in the hopper corresponding to the opened sector valve is too low, it is necessary to switch the discharge hopper. That is, select a hopper corresponding to a sector valve that is closed as the feeding hopper, and the material level in this hopper must be higher than the material level threshold. After selecting the new sector valve, close the previously opened sector valve and open the selected new sector valve, using the new hopper for feeding to ensure that the actual feed rate is sufficient.

[0086] Optionally, after step S110, the method further includes:

[0087] If the difference between the actual feed rate and the target feed rate is less than the preset third difference threshold, the first sector valve is controlled to enter the closed state, and the second sector valve corresponding to the hopper with the material level higher than the material level threshold is controlled to enter the open state.

[0088] The third difference threshold is less than the second difference threshold.

[0089] In this embodiment, if the difference between the actual feed amount and the target feed amount is less than the preset third difference threshold, it means that the actual feed amount is much smaller than the target feed amount. This is likely caused by the blockage of the sector valve. In this case, the currently open sector valve should be closed, and a closed sector valve should be opened. The material level of the hopper corresponding to the selected closed sector valve should be higher than the material level threshold to ensure that the actual feed amount is sufficient.

[0090] Optionally, the method also includes:

[0091] The runtime of the first sector valve is obtained; if the runtime exceeds the preset time threshold, the first sector valve is controlled to enter the closed state, and the second sector valve corresponding to the hopper with the material level higher than the material level threshold is controlled to enter the open state.

[0092] In this embodiment, if the sector valve remains closed for an extended period, the valve orifice is prone to caking, affecting the discharge of raw materials from the silo. Therefore, the operating time of each sector valve must not exceed a time threshold. When the time threshold is exceeded, the sector valve is switched, and the material level in the silo corresponding to the switched sector valve must be higher than the material level threshold to ensure sufficient actual feeding.

[0093] In this embodiment, a maximum opening degree is set, and the opening degree of the sector valve cannot exceed this maximum opening degree. This prevents the sector valve from being controlled to open indefinitely when the valve port is blocked, which could lead to the material discharge pressing and stopping the conveyor belt. Specifically, the maximum opening degree and the stroke of the hydraulic push rod are obtained; the maximum stroke corresponding to the maximum opening degree is determined; if the stroke of the hydraulic push rod is the maximum stroke, the sector valve is controlled not to open.

[0094] After implementing the new control method for the rod mill feeding system in the building materials production line of the mining company's water plant iron ore mine, the micro-adjustment of the sector valve opening was achieved, solving the problems of low precision and poor timeliness of manual adjustment. To date, the rod mill feeding has been very stable. The application of this method has enabled stable automatic feeding control of the rod mill, improved its feeding efficiency, and enhanced its operational intelligence. It has significant potential for wider application in the control of similar equipment and holds considerable demonstrative significance and promising prospects for wider application within the domestic industry.

[0095] Based on the same inventive concept, embodiments of the present invention also provide a control device for a rod mill feeding system. Figure 4 This is a structural block diagram of a control device for a rod mill feeding system provided in an embodiment of the present invention, as shown in the figure. Figure 4 As shown, the rod mill feeding system includes a sector valve, which is used to adjust the feed rate of the rod mill. The device 400 includes an acquisition module 401, a first control module 402, and a second control module 403.

[0096] The acquisition module 401 is used to acquire the actual feed rate and the target feed rate of the rod mill;

[0097] The first control module 402 is used to control the sector valve to perform a preset first duration of closing action if the difference between the actual feed amount and the target feed amount is greater than a preset first difference threshold.

[0098] The second control module 403 is used to control the sector valve to perform an opening action for a preset second duration if the difference is less than a preset second difference threshold.

[0099] The first difference threshold is greater than 0, and the second difference threshold is less than 0.

[0100] Optionally, the acquisition module 401 is also used for:

[0101] At each preset third time interval, the actual feed rate and target feed rate of the rod mill are obtained once.

[0102] Optionally, the rod mill feeding system also includes a belt and a belt scale arranged on the belt, wherein the third duration is the ratio of the distance between the sector valve and the belt scale to the belt speed.

[0103] Optionally, the sector valves include a first sector valve and a second sector valve, with each sector valve corresponding to a hopper. The device 400 also includes a third control module for:

[0104] Obtain the material level in the silo;

[0105] If the material level in the hopper corresponding to the first sector valve is lower than the preset material level threshold, the first sector valve is controlled to enter the closed state, and the second sector valve corresponding to the hopper with the material level higher than the material level threshold is controlled to enter the open state.

[0106] The first sector valve is currently in the open state, and the second sector valve is currently in the closed state.

[0107] Optionally, the device 400 also includes a fourth control module for:

[0108] If the difference is less than the preset third difference threshold, the first sector valve is controlled to enter the closed state, and the second sector valve corresponding to the hopper with the material level higher than the material level threshold is controlled to enter the open state.

[0109] The third difference threshold is less than the second difference threshold.

[0110] Optionally, the device 400 also includes a fifth control module for:

[0111] Obtain the running time of the first sector valve;

[0112] If the runtime exceeds the preset duration threshold, the first sector valve is controlled to enter the closed state, and the second sector valve corresponding to the hopper with the material level higher than the material level threshold is controlled to enter the open state.

[0113] Optionally, the device 400 also includes an alarm module for:

[0114] Obtain the opening degree of the sector valve before and after performing a preset number of opening or closing actions;

[0115] If the change in opening degree before and after is less than the preset change threshold, an alarm will be triggered.

[0116] This invention also provides an electronic device that may include a processor and a memory, wherein the processor and the memory may be interconnected via a bus or other means.

[0117] The processor may be a central processing unit (CPU), an application-specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of this application.

[0118] Memory may include mass storage for data or instructions. For example, and not limitingly, memory may include hard disk drives (HDDs), floppy disk drives, flash memory, optical disks, magneto-optical disks, magnetic tape, or Universal Serial Bus (USB) drives, or combinations of two or more of these. Where appropriate, memory may include removable or non-removable (or fixed) media. Where appropriate, memory may be internal or external to an electronic device. In a particular embodiment, memory may be non-volatile solid-state memory.

[0119] In one instance, the memory may be read-only memory (ROM). In one instance, the ROM may be a mask-programmed ROM, a programmable ROM (PROM), an erasable PROM (EPROM), an electrically erasable PROM (EEPROM), an electrically rewritable ROM (EAROM), or flash memory, or a combination of two or more of these.

[0120] The processor reads and executes computer program instructions stored in the memory to implement any of the control methods of the rod mill feeding system in the above embodiments.

[0121] In one example, the electronic device may further include a communication interface and a bus. The processor, memory, and communication interface are connected via the bus to communicate with each other. The communication interface is primarily used to enable communication between the various modules, devices, units, and / or equipment in the embodiments of this application. Where appropriate, the bus may include one or more buses.

[0122] Furthermore, in conjunction with the control method of the rod mill feeding system in the above embodiments, this invention can be implemented using a computer-readable storage medium. This computer-readable storage medium stores computer program instructions; when these computer program instructions are executed by a processor, they implement any of the control methods of the rod mill feeding system in the above embodiments.

[0123] The technical solutions described in the embodiments of this application have at least the following technical effects or advantages:

[0124] The control method, apparatus, equipment, and medium for a rod mill feeding system provided in this invention include a sector valve. The sector valve is used to adjust the feed rate of the rod mill, allowing the acquisition of the actual feed rate and the target feed rate to understand the current operating efficiency of the rod mill. If the difference between the actual feed rate and the target feed rate is greater than a preset first difference threshold, indicating that the actual feed rate is significantly larger than the target feed rate, the sector valve is controlled to perform a preset first-duration closing action, quantitatively reducing the opening of the sector valve and quantitatively reducing the actual feed rate, thereby reducing the difference. If the difference is less than a preset second difference threshold, indicating that the actual feed rate is significantly smaller than the target feed rate, the sector valve is controlled to perform a preset second-duration opening action, quantitatively increasing the opening of the sector valve and quantitatively increasing the actual feed rate, thereby reducing the difference. This ensures a relatively stable raw material input to the rod mill, maintaining a high-efficiency operating state. The first difference threshold is greater than 0, and the second difference threshold is less than 0. This method allows for fine-tuning with each adjustment, ensuring the accuracy of each adjustment and resulting in minimal or even no final deviation, allowing the rod mill to maintain a highly efficient working state.

[0125] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0126] Similarly, it should be understood that, in order to simplify this disclosure and aid in understanding one or more of the various aspects of the invention, in the above description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof. However, this method of disclosure should not be interpreted as reflecting an intention that the claimed invention requires more features than are expressly recited in each claim. Rather, as reflected in the following claims, inventive aspects lie in fewer than all features of a single foregoing disclosed embodiment. Therefore, the claims following the detailed description are hereby expressly incorporated into this detailed description, wherein each claim itself is a separate embodiment of the invention.

[0127] It should be noted that the above embodiments are illustrative of the invention and not restrictive, and that those skilled in the art can devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses should not be construed as limiting the claims. The word "comprising" does not exclude the presence of components or steps not listed in the claims. The word "a" or "an" preceding a component does not exclude the presence of a plurality of such components. The invention can be implemented by means of hardware comprising several different components and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by the same item of hardware. The use of the words first, second, and third, etc., does not indicate any order. These words can be interpreted as names.

Claims

1. A control method of a rod mill feeding system, characterized by, The rod mill feeding system comprises sector valves for adjusting the feeding amount of the rod mill, the sector valves comprise a first sector valve and a second sector valve, and each sector valve corresponds to a stock bin, the method comprises: obtaining the actual feeding amount and the target feeding amount of the rod mill; if the difference between the actual feeding amount and the target feeding amount is greater than a preset first difference threshold, controlling the sector valve to perform a preset first duration of closing action; if the difference is less than a preset second difference threshold, controlling the sector valve to perform a preset second duration of opening action; wherein the first difference threshold is greater than 0, the second difference threshold is less than 0, and the first duration and the second duration are not the same; the method further comprises: obtaining the stock level of the stock bin; if the stock level of the stock bin corresponding to the first sector valve is lower than a preset stock level threshold, controlling the first sector valve to enter a closed state, and controlling the second sector valve corresponding to the stock bin with a stock level higher than the stock level threshold to enter an open state; wherein the first sector valve is the sector valve in the current open state, and the second sector valve is the sector valve in the current closed state; obtaining the running duration of the first sector valve; if the running duration is greater than a preset duration threshold, controlling the first sector valve to enter a closed state, and controlling the second sector valve corresponding to the stock bin with a stock level higher than the stock level threshold to enter the open state.

2. The control method of a rod mill feeding system according to claim 1, characterized by, The method of obtaining the actual feeding amount and the target feeding amount of the rod mill comprises: obtaining the actual feeding amount and the target feeding amount of the rod mill once every preset third duration.

3. The control method of a rod mill feeding system according to claim 2, characterized by, The rod mill feeding system further comprises a belt and a belt scale arranged on the belt, and the third duration is the ratio of the distance between the sector valve and the belt scale to the belt speed.

4. The method of controlling a rod mill feeding system according to claim 1, characterized by, After obtaining the actual feeding amount and the target feeding amount of the rod mill, the method further comprises: if the difference is less than a preset third difference threshold, controlling the first sector valve to enter the closed state, and controlling the second sector valve corresponding to the stock bin with a stock level higher than the stock level threshold to enter the open state; wherein the third difference threshold is less than the second difference threshold.

5. The method of controlling a rod mill feeding system according to claim 1, characterized by, The method further comprises: obtaining the opening degree before and after the preset number of opening actions or closing actions of the sector valve; if the change between the opening degrees before and after is less than a preset change threshold, alarming.

6. A control device for a rod mill feeding system, characterized by, The rod mill feeding system comprises sector valves for adjusting the feeding amount of the rod mill, the sector valves comprise a first sector valve and a second sector valve, and each sector valve corresponds to a stock bin, the device comprises: an obtaining module for obtaining the actual feeding amount and the target feeding amount of the rod mill; a first control module for, if the difference between the actual feeding amount and the target feeding amount is greater than a preset first difference threshold, controlling the sector valve to perform a preset first duration of closing action; a second control module for, if the difference is less than a preset second difference threshold, controlling the sector valve to perform a preset second duration of opening action; The first difference threshold is greater than 0, the second difference threshold is less than 0, and the first time length is different from the second time length. The device further comprises a third control module configured to: acquire the material level of the silo; if the material level of the silo corresponding to the first sector valve is lower than a preset material level threshold, control the first sector valve to enter a closed state, and control the second sector valve corresponding to the silo with the material level higher than the material level threshold to enter an open state; The first sector valve is a sector valve in an open state, and the second sector valve is a sector valve in a closed state. The device further comprises a fifth control module configured to: acquire the running time length of the first sector valve; if the running time length is greater than a preset time length threshold, control the first sector valve to enter a closed state, and control the second sector valve corresponding to the silo with the material level higher than the material level threshold to enter the open state.

7. An electronic device, comprising: comprise: a memory and a processor, which are in communication connection with each other, the memory stores computer instructions, and the processor executes the computer instructions to perform the method of any one of claims 1-5.

8. A computer-readable storage medium, characterized in that, The computer readable storage medium stores computer instructions for causing the computer to execute the method of any one of claims 1-5.

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