Control methods, devices, equipment, and computer storage media for dust removal systems

Abstract

This application discloses a control method, apparatus, device, and computer storage medium for a dust removal device. The method includes: determining a target dust removal timing control strategy corresponding to the steel to be processed based on the rolling specifications of the steel and a preset correspondence, wherein the preset correspondence includes rolling specification conditions corresponding to different dust removal timing control strategies, and the target dust removal timing control strategy is at least one of the different dust removal timing control strategies; calculating the activation time corresponding to each dust removal device based on the target dust removal timing control strategy; and controlling the corresponding dust removal device according to the activation time. In this application, different dust removal timing control strategies can be used to control steel with different rolling specifications, thereby reducing impurities and contaminants pressed in during the finishing rolling process, thus ensuring the quality and performance of the steel.

Description

Technical Field

[0001] This application belongs to the field of metallurgical technology, and in particular relates to a control method, device, equipment and computer storage medium for a dust removal device. Background Technology

[0002] In the steel finishing process, steel needs to be conveyed through rolls to a series of continuous rolling mills under high temperature and high speed conditions for multiple rolling processes so that the steel can achieve the required shape, size and performance.

[0003] During the hot continuous rolling process of steel, impurities and contaminants may be forced into the surface or interior of the steel due to factors such as improper operating environment, equipment condition, raw material quality, and inadequate process control. Therefore, related technologies incorporate impurity removal devices, such as horizontal and side-spray purging devices, to prevent impurities and contaminants from being forced into the steel.

[0004] However, in related technologies, the dust removal process of the impurity removal device cannot effectively reduce the problem of impurities and contaminants being pressed into the steel. Therefore, how to reduce the amount of impurities and contaminants pressed into the steel during the finishing rolling process and ensure the quality and performance of the steel is a technical problem that relevant technicians urgently need to solve. Summary of the Invention

[0005] This application provides a control method, device, equipment, and computer storage medium for a dust removal device, which can reduce the amount of impurities and contaminants pressed into the steel during the finishing rolling process, thereby ensuring the quality and performance of the steel.

[0006] In a first aspect, embodiments of this application provide a control method for a dust removal device. The dust removal device includes dust removal devices corresponding to multiple rolling mills for hot continuous rolling of steel to be processed. The method includes: determining a target dust removal timing control strategy corresponding to the steel to be processed based on the rolling specifications of the steel to be processed and a preset correspondence, wherein the preset correspondence includes rolling specification conditions corresponding to different dust removal timing control strategies, and the target dust removal timing control strategy is at least one of the different dust removal timing control strategies; calculating the opening time corresponding to each dust removal device based on the target dust removal timing control strategy; and controlling the corresponding dust removal device according to the opening time.

[0007] In one embodiment, the rolling specifications include rolling thickness parameters. Based on the rolling specifications of the steel to be processed and a preset correspondence, a target dust removal timing control strategy corresponding to the steel to be processed is determined, including: determining the target rolling specification conditions that the rolling thickness parameters satisfy; and determining the target dust removal timing control strategy corresponding to the target rolling specification conditions from the preset correspondence.

[0008] In one embodiment, the calculation of the activation time of each dust removal device based on the target dust removal timing control strategy includes: in response to detecting that the steel to be processed has reached the flying shear position, determining the dust removal activation position information of each dust removal device according to the target dust removal timing control strategy; obtaining the speed of the steel to be processed; and calculating the activation time of the steel to be processed reaching the dust removal activation position based on the speed and the dust removal activation position information.

[0009] In one embodiment, the dust removal timing control strategy includes a first dust removal timing control strategy and a second dust removal timing control strategy. Based on the target dust removal timing control strategy, the dust removal activation position information corresponding to each dust removal device is determined, including: acquiring the mill position information of n rolling mills sequentially arranged along the running direction of the steel to be processed, where n is a positive integer; if the target dust removal timing control strategy is determined to be the first dust removal timing control strategy, the mill position information of the nth rolling mill is used as the dust removal activation position information of the dust removal device corresponding to the nth rolling mill; or, if the target dust removal timing control strategy is determined to be the second dust removal timing control strategy, the mill position information of the (n-1)th rolling mill is used as the dust removal activation position information of the dust removal device corresponding to the nth rolling mill.

[0010] In one embodiment, after controlling the corresponding dust removal device according to the opening time, the method further includes: acquiring a detection signal, the detection signal including at least the detection position information corresponding to the detection device and the detection time information of the detection device detecting the steel to be processed; if the target mill's biting state is not detected at the opening time, correcting the opening time corresponding to the first dust removal device according to the detection position information and the detection time information, wherein the target mill is the mill where the dust removal device corresponding to the opening time is located, and the first dust removal device is the dust removal device corresponding to the mill located after the target mill among a plurality of mills arranged sequentially along the running direction of the steel to be processed.

[0011] In one embodiment, the detection position information represents the distance between the detection device and the flying shear, and the detection time information represents the movement time of the steel to be processed from the flying shear position to the detection device; the opening time of the first dust removal device is corrected according to the detection position information and the detection time information, including: calculating the actual speed of the steel to be processed according to the distance information and the movement time; and correcting the opening time of the first dust removal device according to the actual speed.

[0012] In one embodiment, the detection signal includes at least one of a signal acquired based on a hot metal detector and a bite signal acquired based on a pressure sensor.

[0013] In one embodiment, after controlling the corresponding dust removal device according to the start time, the method further includes: shutting down the dust removal device corresponding to the rolling mill when it is determined that the rolling mill is experiencing tail-end discharge.

[0014] Secondly, embodiments of this application provide a control device for a dust removal system. The dust removal system includes dust removal devices corresponding to each of multiple rolling mills that perform hot continuous rolling on the steel to be processed. The device includes:

[0015] The determination module is used to determine the target dust removal timing control strategy corresponding to the steel to be processed based on the rolling specifications of the steel to be processed and the preset correspondence. The preset correspondence includes the rolling specification conditions corresponding to different dust removal timing control strategies, and the target dust removal timing control strategy is at least one of the different dust removal timing control strategies.

[0016] The calculation module is used to calculate the start-up time of each dust removal device based on the target dust removal timing control strategy.

[0017] The control module is used to control the corresponding dust removal device according to the start time.

[0018] Thirdly, embodiments of this application provide an electronic device, the device including: a processor and a memory storing computer program instructions; the processor executes the computer program instructions to implement the control method of the dust removal device in the first aspect or any embodiment of the first aspect.

[0019] Fourthly, a computer-readable storage medium storing computer program instructions, which, when executed by a processor, implement the control method of the dust removal device in the first aspect or any embodiment of the first aspect.

[0020] Fifthly, embodiments of this application provide a computer program product in which instructions, when executed by a processor of an electronic device, cause the electronic device to perform a control method for a dust removal device as described in the first aspect or any embodiment of the first aspect.

[0021] In this embodiment, the target dust removal timing control strategy for the steel to be processed is determined by the rolling specifications and a preset correspondence. Based on this strategy, the activation time of each dust removal device is calculated, thereby controlling each device. It is understood that in this embodiment, different dust removal timing control strategies are used for steel with different rolling specifications to control it. This reduces impurities and contaminants introduced during the finishing rolling process, thus ensuring the quality and performance of the steel. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 A schematic diagram of a rolling mill provided in one embodiment of this application is shown;

[0024] Figure 2 A schematic flowchart of a control method for a dust removal device according to an embodiment of this application is shown;

[0025] Figure 3 A flowchart illustrating S210 provided in one embodiment of this application is shown;

[0026] Figure 4 A flowchart illustrating a control method for a dust removal device according to another embodiment of this application is shown;

[0027] Figure 5 A flowchart of S420 provided in one embodiment of this application is shown;

[0028] Figure 6 A flowchart illustrating a control method for a dust removal device according to another embodiment of this application is shown;

[0029] Figure 7 A flowchart illustrating a control method for a dust removal device according to another embodiment of this application is shown;

[0030] Figure 8 This is a schematic diagram of the structure of the control device of a dust removal device provided in another embodiment of this application;

[0031] Figure 9 This is a schematic diagram of the structure of an electronic device provided in another embodiment of this application. Detailed Implementation

[0032] The features and exemplary embodiments of various aspects of this application will be described in detail below. To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain this application and not to limit it. For those skilled in the art, this application can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of this application by illustrating examples.

[0033] It should be noted that, in this document, relational terms such as target and preset are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0034] In the finishing rolling process of steel, steel needs to be conveyed to the rolling mill through rolls under high temperature and high speed conditions, and then rolled by the rolling mill to obtain strip steel. In the finishing rolling process, multiple rolling mills can be used to continuously roll the strip steel so that the strip steel can achieve the required shape, size and performance.

[0035] During the hot continuous rolling process of strip steel, various factors such as improper operating environment, equipment condition, raw material quality, and process control can cause impurities and contaminants such as scale, iron oxide scale, fine particles (such as dust), grease residue, and other types of contaminants to be pressed into the surface or deeper layers of the strip steel, affecting the quality and performance of the steel.

[0036] It is understandable that the impact of impurities and contaminants pressed into the strip steel is multifaceted. For example, in terms of appearance, the pressed-in impurities and contaminants may reduce the surface smoothness of the strip steel, affecting its aesthetics; in terms of physical properties, the pressed-in impurities and contaminants may lead to a decrease in the mechanical properties of the strip steel, including a reduction in strength and toughness; in terms of service life, the pressed-in impurities and contaminants are prone to causing cracks and corrosion during subsequent processing and use, shortening the service life. Furthermore, the numerous adverse effects of impurities and contaminants pressed into the strip steel may lead to product downgrading, returns, and even legal disputes, seriously affecting the company's economic benefits and market competitiveness. Therefore, reducing the problem of impurities and contaminants being pressed into the strip steel during the finishing rolling process plays an important role in improving the quality and performance of the strip steel.

[0037] In related technologies, during the finishing rolling of strip steel, impurities and pollutants can be controlled by adding side spray purging devices, improving dust removal equipment, strengthening mill cleaning, and improving water quality.

[0038] Figure 1 A schematic diagram of a rolling mill provided in one embodiment of this application is shown, as follows: Figure 1 As shown, the rolling mill 10 includes a main body 11, a horizontal spraying device 12, and a side spraying device 13. The main body 11 is used to roll the steel to be treated, thereby reducing its thickness. The horizontal spraying device 12 and the side spraying device 13 are used to remove impurities and contaminants from the steel. It is understood that during the rolling process, the surface of the steel reacts with oxygen in the air to form iron oxide scale. Therefore, by setting up the horizontal spraying device 12 and the side spraying device 13 to spray water mist or oil mist onto the surface of the hot-rolled steel, a protective film is formed, effectively reducing the direct contact between the steel and oxygen, thereby reducing the formation of oxide scale. Simultaneously, the horizontal spraying device 12 and the side spraying device 13 can also help remove oxide scale and other contaminants already attached to the steel surface, such as oil stains and dust, further improving the surface quality of the steel.

[0039] However, the infiltration of impurities and contaminants varies across rolling mills of different rolling specifications. In related technologies, using the same control strategy to manage the impurity removal device does not effectively reduce the problem of impurities and contaminants being forced into the strip. Therefore, how to control the impurity removal device to reduce the infiltration of impurities and contaminants into the steel, thereby ensuring the quality and performance of the steel, is a technical problem that urgently needs to be solved by relevant technical personnel.

[0040] To address the problems of the prior art, embodiments of this application provide a control method, apparatus, device, and computer storage medium for a dust removal device. The control method for the dust removal device provided in this application embodiment will be described first.

[0041] Figure 2 A schematic flowchart of a control method for a dust removal device according to an embodiment of this application is shown. The dust removal device includes dust removal devices corresponding to each of multiple rolling mills that perform hot continuous rolling of the steel to be processed. Figure 2 As shown, the control method for the dust removal device includes the following steps:

[0042] S210. Based on the rolling specifications of the steel to be processed and the preset correspondence, determine the target dust removal timing control strategy corresponding to the steel to be processed.

[0043] S220. Based on the target dust removal timing control strategy, calculate the start-up time of each dust removal device.

[0044] S230. Control the corresponding dust removal device according to the start time.

[0045] For example, multiple rolling mills can be arranged sequentially, with each mill gradually decreasing in rolling specifications. This allows the steel to be processed to be progressively rolled to the user's required specifications as it passes through each mill. In one example, the user needs steel with a thickness of 2 millimeters (mm), while the steel to be processed, i.e., the steel to be rolled, has a thickness of 5 centimeters (cm). As the steel passes through the rolling mills sequentially, its thickness gradually decreases, ultimately resulting in steel of the thickness required by the user.

[0046] In some embodiments, in S210, a target dust removal timing control strategy corresponding to the steel to be processed can be determined based on the rolling specifications of the steel to be processed and a preset correspondence. The preset correspondence includes rolling specification conditions corresponding to different dust removal timing control strategies, and the target dust removal timing control strategy is at least one of the different dust removal timing control strategies.

[0047] For example, the rolling specification is used to characterize the specifications of the steel required by the user. That is, the steel to be processed is finally obtained as the rolling specification after hot continuous rolling.

[0048] For example, the dust removal timing control strategy can be used to control the dust removal devices corresponding to each rolling mill during hot continuous rolling. The dust removal devices corresponding to each rolling mill may include horizontal spraying devices and / or side spraying devices.

[0049] For example, different dust removal timing control strategies can be determined for different rolling specifications, and the correspondence between different rolling specifications and each dust removal timing control strategy can be used as a preset correspondence.

[0050] After obtaining the rolling specifications corresponding to the steel to be processed, the rolling specification conditions that the rolling specifications of the steel to be processed meet can be determined, and the dust removal timing control strategy corresponding to the rolling specification conditions can be determined according to the preset correspondence. The dust removal timing control strategy is then used as the target dust removal timing control strategy.

[0051] In some alternative embodiments, the rolling specifications include at least the rolling thickness parameter. Figure 3 A flowchart illustrating S210 according to an embodiment of this application is shown. Figure 3 As shown, S210 includes the following steps:

[0052] S211. Determine the target rolling specification conditions that the rolling thickness parameters must meet.

[0053] S212. Determine the target dust removal timing control strategy corresponding to the target rolling specification conditions from the preset correspondence.

[0054] Understandably, relevant technicians obtained a large amount of experimental data through experiments and tests. By analyzing this data, they determined that the rework rate due to impurities and contaminants being pressed into the steel varied when the steel was rolled to different thicknesses. In other words, the technicians determined that the rolling thickness of the steel had a significant impact on the problem of impurities and contaminants being pressed into the steel.

[0055] Therefore, different dust removal control strategies can be adopted for different rolling thicknesses to reduce the problem of impurities and contaminants being pressed into the steel, thereby improving the quality and performance of the steel.

[0056] In some embodiments, in S211, a person skilled in the art can determine the relationship between the extent to which impurities and contaminants are pressed into the steel and the rolling thickness through data analysis, thereby determining different rolling specifications.

[0057] Furthermore, from multiple defined rolling specification conditions, the rolling specification conditions that satisfy the rolling thickness parameters can be determined as the target rolling specification adjustment conditions.

[0058] Different rolling thicknesses can be divided into different ranges based on the extent to which impurities and contaminants are pressed into the steel at different rolling thicknesses. These ranges can then be used as different rolling specification conditions. The different rolling thickness ranges reflect varying degrees of impurity and contaminant indentation into the steel. Furthermore, the rolling thickness range of the steel to be processed can be determined based on its corresponding rolling thickness parameters.

[0059] In one example, when the rolling thickness is less than 3 mm, it can be determined that the rework rate caused by impurities and contaminants being pressed into the steel is low; when the rolling thickness is between 3 mm and 6 mm, it can be determined that the rework rate caused by impurities and contaminants being pressed into the steel is moderate; and when the rolling thickness is greater than 6 mm, it can be determined that the rework rate caused by impurities and contaminants being pressed into the steel is high. Furthermore, different rolling specification adjustment conditions can be determined for different rolling thickness ranges.

[0060] In some embodiments, in S212, the target dust removal timing control strategy corresponding to the target rolling specification conditions can be determined from the preset correspondence.

[0061] For example, different rolling specifications correspond to different dust removal timing control strategies. The target dust removal timing control strategy corresponding to the target rolling specifications can be determined from a preset correspondence.

[0062] In one example, when the target rolling specification is a target thickness range among multiple rolling thickness ranges, the target dust removal timing control strategy corresponding to the target thickness range can be determined.

[0063] In this embodiment, when the rolling specification is the rolling thickness parameter, different rolling specification conditions can be constructed according to different rolling thickness ranges, and the rolling specification conditions that the rolling thickness parameter corresponding to the steel to be processed must be determined. In this way, the dust removal timing control strategy for the rolling thickness parameter corresponding to the steel to be processed is determined, i.e., the target dust removal timing control strategy.

[0064] For example, different dust removal timing control strategies may also include the purging intensity of the dust removal device. In one example, different purging intensities can be controlled by setting the spray intensity of water mist or oil mist.

[0065] In some embodiments, in S220, the start-up time of each dust removal device can be calculated based on the target dust removal timing control strategy.

[0066] For example, the start-up time of each dust removal device can be calculated based on a determined target timing control strategy. The start-up time may differ for different dust removal devices.

[0067] In some embodiments, in S230, the corresponding dust removal device can be controlled according to the start time.

[0068] For example, a control signal can be sent to the dust removal device at the start time to activate the dust removal device and spray water mist or oil onto the steel to be treated.

[0069] In one example, when the horizontal spray device and / or side spray device receive an activation signal, they begin spraying water mist or oil onto the steel to be treated.

[0070] In this embodiment, the target dust removal timing control strategy for the steel to be processed is determined by the rolling specifications and a preset correspondence. Based on this strategy, the activation time of each dust removal device is calculated, thereby controlling each device. It is understood that in this embodiment, different dust removal timing control strategies are used for steel with different rolling specifications to control it. This reduces impurities and contaminants introduced during the finishing rolling process, thus ensuring the quality and performance of the steel.

[0071] Furthermore, in order to determine the start-up time of each dust removal device, as another implementation of this application, this application also provides another implementation of the control method for the dust removal device, as detailed in the following embodiments.

[0072] Figure 4 A schematic flowchart of a control method for a dust removal device according to another embodiment of this application is shown. The dust removal device includes dust removal devices corresponding to each of multiple rolling mills that perform hot continuous rolling of the steel to be processed. Figure 4As shown, the control method for the dust removal device includes the following steps:

[0073] S410. Based on the rolling specifications of the steel to be processed and the preset correspondence, determine the target dust removal timing control strategy corresponding to the steel to be processed.

[0074] S420: In response to detecting that the steel to be processed has reached the flying shear position, determine the dust removal start position information of each dust removal device according to the target dust removal timing control strategy.

[0075] S430, the speed at which the steel to be processed is acquired.

[0076] S440. Based on the speed and dust removal start-up position information, calculate the start-up time for the steel to be processed to reach the dust removal start-up position.

[0077] S450, control the corresponding dust removal device according to the start time.

[0078] For example, step S410 is the same as step S210, and step S450 is the same as step S230, which will not be described in detail here.

[0079] In some embodiments, in S420, when it is determined that the steel to be processed has reached the flying shear position, the dust removal start position information corresponding to each dust removal device can be determined according to the target dust removal timing control strategy.

[0080] For example, the flying shear position can be used to characterize the entry of the steel to be processed into the hot rolling zone. Therefore, determining whether the steel to be processed has reached the flying shear position can serve as a trigger condition for calculating the start-up time. This ensures that the start-up time of each dust removal device is calculated at the appropriate time, ensuring that the dust removal devices are activated according to the start-up time while avoiding waste of computational resources.

[0081] For example, after detecting that the steel to be processed has reached the flying shear position, the flying shear can feed back a flying shear occupancy signal to indicate that the steel to be processed has reached the flying shear position.

[0082] In one example, the shearing action signal of the flying shear can be used as the flying shear position signal, that is, the compact strip production (CSP) start signal, i.e., the CSP ON signal.

[0083] In another example, a hot metal detector (HMD) can be installed in the rolling line for the steel to be processed. The HMD can be positioned by technicians in the area where the steel is hot-rolled, and its position can be saved to the control system. The control system also stores the position information of the flying shear. The running speed of the steel to be processed in the roller conveyor is obtained, and then, based on the position of the HMD, the position information of the flying shear, and the running speed, it is determined whether to generate a flying shear occupancy signal.

[0084] For example, different dust removal timing control strategies can correspond to different dust removal activation positions. It is understood that for different dust removal devices, under the same dust removal timing control strategy, they can have different dust removal activation positions. Furthermore, for the same dust removal device, the corresponding dust removal activation position can be different under different dust removal timing control strategies.

[0085] In some optional embodiments, the dust removal timing control strategy includes a first dust removal timing control strategy, a second dust removal timing control strategy, and a third dust removal timing control strategy. The first, second, and third dust removal timing control strategies can be dust removal timing control strategies corresponding to different rolling specifications. For example, the first dust removal timing control strategy can be a dust removal timing control strategy corresponding to rolling specifications with a rolling thickness of less than 3 mm; the second dust removal timing control strategy can be a dust removal timing control strategy corresponding to rolling specifications with a rolling thickness of 3 mm to 6 mm; and the third dust removal timing control strategy can be a dust removal timing control strategy corresponding to rolling specifications with a rolling thickness greater than 6 mm. It is understood that the division of rolling specifications in this application embodiment is only for illustrative purposes, and the division of rolling specifications can include various other cases, which are not all listed here.

[0086] Figure 5 A flowchart illustrating S420 according to an embodiment of this application is shown. Figure 5 As shown, S420 includes the following steps:

[0087] S421. Obtain the rolling mill position information of n rolling mills set sequentially along the running direction of the steel to be processed, where n is a positive integer.

[0088] For example, n rolling mills can be set up sequentially along the running direction of the steel to be processed, and the position information of each of the n rolling mills can be obtained.

[0089] S422. When the target dust removal timing control strategy is determined to be the first dust removal timing control strategy, the mill position information of the nth mill is used as the dust removal start position information of the dust removal device corresponding to the nth mill.

[0090] In one example, if the target dust removal timing control strategy is determined to be the dust removal timing control strategy corresponding to rolling specifications with a rolling thickness of less than 3mm, the rolling mill position information of the nth rolling mill can be used as the dust removal activation position information of the dust removal device corresponding to the nth rolling mill. That is, when the steel to be processed arrives at the nth rolling mill, its corresponding dust removal device will be activated.

[0091] S423. When the target dust removal timing control strategy is determined to be the second dust removal timing control strategy, the mill position information of the (n-1)th mill is used as the dust removal start position information of the dust removal device corresponding to the nth mill.

[0092] In one example, when the target dust removal timing control strategy is determined to be the dust removal timing control strategy corresponding to rolling specifications with a rolling thickness of 3mm to 6mm, the rolling mill position information of the (n-1)th rolling mill is used as the dust removal activation position information of the dust removal device corresponding to the nth rolling mill. That is, when the steel to be processed arrives at the (n-1)th rolling mill, the dust removal device corresponding to the nth rolling mill is activated. It can be understood that when the rolling thickness is 3mm to 6mm, the dust removal device corresponding to the previous stand can be activated.

[0093] S424. When the target dust removal timing control strategy is determined to be the third dust removal timing control strategy, the flying shear position is used as the dust removal start position information corresponding to each dust removal device.

[0094] In one example, when the target dust removal timing control strategy is determined to be the dust removal timing control strategy corresponding to rolling specifications with a rolling thickness greater than 6mm, the flying shear position is used as the dust removal activation position information for each dust removal device. That is, when the steel to be processed is detected to have reached the flying shear position, each dust removal device can be activated.

[0095] In this embodiment of the application, by determining the dust removal timing control strategy described in the target dust removal timing control strategy, the dust removal start position of each dust removal device is determined. This can reduce the impurities and contaminants pressed in during the finishing rolling process, thereby ensuring the quality and performance of the steel.

[0096] In some embodiments, in S430, the speed of the steel to be processed can be obtained.

[0097] For example, the running speed of the steel to be processed can be determined based on the speed of the roller conveyor.

[0098] In some embodiments, in S440, the opening time for the steel to be processed to reach the dust removal opening position is calculated based on the speed and the dust removal opening position information.

[0099] For example, the running speed of the steel to be processed and the start time of the dust removal start position information can be calculated according to the kinematic formula, thereby determining the start time when the steel to be processed reaches the dust removal start position.

[0100] In one example, the start time when the steel to be processed reaches the dust removal start position can be calculated using the following formula (1):

[0101]

[0102] Where P can represent the dust removal start-up position information; P0 can represent the flying shear position information, that is, the position information corresponding to the trigger calculation start-up time; This indicates that the velocity V is integrated over the period from time t1 to time t, where time t1 can be the time when the steel to be processed reaches the flying shear position, and t represents the opening time.

[0103] In this embodiment, the time information of the steel to be processed reaching the dust removal start position information is determined by the dust removal start position information determined by the target dust removal timing control strategy and the speed of the steel to be processed. This time information is used as the start time of the dust removal device. This ensures that each dust removal device can start according to the calculated start time, thereby reducing the problem of impurities and pollutants being pressed into the steel, thus ensuring the quality and performance of the steel.

[0104] To ensure the accuracy of the start-up time, as another implementation of this application, this application also provides another implementation of the control method for the dust removal device, as detailed in the following embodiments.

[0105] Figure 6 A schematic flowchart of a control method for a dust removal device according to another embodiment of this application is shown. The dust removal device includes dust removal devices corresponding to each of multiple rolling mills that perform hot continuous rolling of the steel to be processed. Figure 6 As shown, the control method for the dust removal device includes the following steps:

[0106] S610. Based on the rolling specifications of the steel to be processed and the preset correspondence, determine the target dust removal timing control strategy corresponding to the steel to be processed.

[0107] S620. Based on the target dust removal timing control strategy, calculate the start-up time of each dust removal device.

[0108] S630, control the corresponding dust removal device according to the start time.

[0109] For example, steps S610-S630 are the same as steps S210-S230, and will not be described in detail here.

[0110] S640. Obtain a detection signal, which at least includes the detection position information corresponding to the detection device and the detection time information of the steel to be processed detected by the detection device.

[0111] Exemplarily, the detection signal at least includes at least one of the signal obtained based on the hot metal detector and the bite signal obtained based on the pressure sensor. That is, it can be understood that the signal obtained by the hot metal detector can be used as the detection signal; or the bite signal collected by the pressure sensor installed in the rolling mill can be used as the detection signal.

[0112] In one example, when the detection signal is the signal obtained by the hot metal detector, the detection signal may include the position information of the hot metal detector and the time information of the hot metal detector detecting the steel to be processed.

[0113] In another example, when the detection signal is the bite signal obtained by the pressure sensor, the detection signal may include the position information of the rolling mill and the time information of detecting the bite signal.

[0114] S650. When the bite state of the target rolling mill is not detected at the opening time, correct the opening time corresponding to the first dust removal device according to the detection position information and the detection time information.

[0115] Wherein, the target rolling mill is the rolling mill where the dust removal device corresponding to the opening time is located, and the first dust removal device is the dust removal device corresponding to the rolling mill located after the target rolling mill among the multiple rolling mills arranged in sequence along the running direction of the steel to be processed.

[0116] Exemplarily, when the bite of the target rolling mill is not detected at the opening time, the opening time corresponding to the dust removal device where the rolling mill located after the target rolling mill is located can be corrected according to the detection position information and the detection time information.

[0117] In one example, when it is detected that the target rolling mill corresponding to the m-th rolling mill does not generate a bite signal, correct the opening time of the dust removal device corresponding to the (m + 1)-th rolling mill, the opening time of the dust removal device corresponding to the (m + 2)-th rolling mill,..., the opening time of the dust removal device corresponding to the n-th rolling mill according to the detection position information and the detection time information. Wherein, m < n, and m is a positive integer.

[0118] In some optional embodiments, the detection position information represents the distance information between the detection device and the flying shear, and the detection time information represents the moving time of the steel to be processed from the flying shear position to the detection device; the actual speed of the steel to be processed can be calculated according to the distance information and the moving time, and the opening time corresponding to the first dust removal device can be corrected according to the actual speed.

[0119] The actual speed of the steel to be processed can be calculated by using kinematic formulas, distance information and movement time, and the opening time of the first dust removal device can be corrected by using formula (1) and the actual speed.

[0120] In other embodiments, the detection location information may also characterize the distance information between the current detection device and the previous detection device, such as the distance information between the current rolling mill and the previous rolling mill, or the time distance information between the current rolling mill and the previous hot metal detector; the detection time information characterizes the movement time of the steel to be processed from the previous detection device to the detection device; the actual speed of the steel to be processed can be calculated based on the distance information and the movement time, and the opening time of the first dust removal device can be corrected based on the actual speed.

[0121] In this embodiment, the actual speed of the steel to be processed is calculated by detecting the location information and the detection time information, thereby correcting the start-up time of the dust removal device in the subsequent rolling mill. This improves the accuracy of the start-up time of the dust removal device. Furthermore, if the detection location information represents the distance between the detection device and the flying shear, and the detection time information represents the movement time of the steel to be processed from the flying shear position to the detection device, the actual speed of the steel to be processed during this time can be determined more accurately, making the corrected start-up time more accurate.

[0122] Furthermore, in this embodiment of the application, by acquiring the detection signal, and if the target mill's biting state is not detected at the start time, the start time of the first dust removal device is corrected according to the detection position information and the detection time information in the detection signal, thereby ensuring the accuracy of the start time of subsequent dust removal devices. This ensures that the dust removal devices can be started accurately, thereby reducing the amount of impurities and pollutants pressed into the steel and ensuring the quality and performance of the steel.

[0123] To ensure the accuracy of the start-up time, as another implementation of this application, this application also provides another implementation of the control method for the dust removal device, as detailed in the following embodiments.

[0124] Figure 7 A schematic flowchart of a control method for a dust removal device according to another embodiment of this application is shown. The dust removal device includes dust removal devices corresponding to each of multiple rolling mills that perform hot continuous rolling of the steel to be processed. Figure 7 As shown, the control method for the dust removal device includes the following steps:

[0125] S710. Based on the rolling specifications of the steel to be processed and the preset correspondence, determine the target dust removal timing control strategy corresponding to the steel to be processed.

[0126] S720: Based on the target dust removal timing control strategy, calculate the start-up time of each dust removal device.

[0127] S730, control the corresponding dust removal device according to the start time.

[0128] For example, steps S710-S7630 are the same as steps S210-S230, and will not be described in detail here.

[0129] S740. If it is determined that the mill tail is being discarded, shut down the corresponding dust removal device for the mill.

[0130] For example, mill tailing can be determined by a pressure sensor installed in the rolling mill. Tailing can mean that the entire steel to be processed has passed through the rolling mill.

[0131] In this embodiment of the application, when it is determined that the mill is being abandoned, shutting down the dust removal device corresponding to the mill can avoid resource waste and save costs.

[0132] Based on the device identification method provided in the above embodiments, this application also provides an embodiment of a device identification device.

[0133] Figure 8 A schematic diagram of the control device of a dust removal device provided in another embodiment of this application is shown. For ease of explanation, only the parts related to the embodiment of this application are shown.

[0134] Reference Figure 8 The control device of the dust removal device in the embodiments of this application includes the following modules:

[0135] The determining module 801 is used to determine the target dust removal timing control strategy corresponding to the steel to be processed based on the rolling specifications of the steel to be processed and the preset correspondence, wherein the preset correspondence includes rolling specification conditions corresponding to different dust removal timing control strategies, and the target dust removal timing control strategy is at least one of the different dust removal timing control strategies.

[0136] The calculation module 802 is used to calculate the start-up time of each dust removal device based on the target dust removal timing control strategy.

[0137] The control module 803 is used to control the corresponding dust removal device according to the said start time.

[0138] As one implementation of this application, the rolling specifications include rolling thickness parameters. The determining module 801 determines the target dust removal timing control strategy corresponding to the steel to be processed according to the rolling specifications of the steel to be processed and the preset correspondence as follows: determining the target rolling specification conditions satisfied by the rolling thickness parameters; and determining the target dust removal timing control strategy corresponding to the target rolling specification conditions from the preset correspondence.

[0139] As one implementation of this application, the calculation module 802 calculates the opening time of each dust removal device based on the target dust removal timing control strategy as follows: in response to detecting that the steel to be processed has reached the flying shear position, the dust removal opening position information corresponding to each dust removal device is determined according to the target dust removal timing control strategy; the speed of the steel to be processed is obtained; and the opening time of the steel to be processed reaching the dust removal opening position is calculated according to the speed and the dust removal opening position information.

[0140] As one implementation of this application, the dust removal timing control strategy includes a first dust removal timing control strategy, a second dust removal timing control strategy, and a third dust removal timing control strategy. The calculation module 802 determines the dust removal activation position information corresponding to each dust removal device according to the target dust removal timing control strategy in the following manner: obtaining the mill position information of n rolling mills arranged sequentially along the running direction of the steel to be processed, where n is a positive integer; when the target dust removal timing control strategy is determined to be the first dust removal timing control strategy, the mill position information of the nth rolling mill is used as the dust removal activation position information of the dust removal device corresponding to the nth rolling mill; or, when the target dust removal timing control strategy is determined to be the second dust removal timing control strategy, the mill position information of the (n-1)th rolling mill is used as the dust removal activation position information of the dust removal device corresponding to the nth rolling mill; or, when the target dust removal timing control strategy is determined to be the third dust removal timing control strategy, the flying shear position is used as the dust removal activation position information corresponding to each dust removal device.

[0141] As one implementation of this application, after controlling the dust removal device according to the opening time, the device further includes a correction module for acquiring a detection signal. The detection signal includes at least the detection position information corresponding to the detection device and the detection time information of the detection device detecting the steel to be processed. If the target mill's biting state is not detected at the opening time, the opening time corresponding to the first dust removal device is corrected according to the detection position information and the detection time information. The target mill is the mill where the dust removal device corresponding to the opening time is located, and the first dust removal device is the dust removal device corresponding to the mill located after the target mill among a plurality of mills arranged sequentially along the running direction of the steel to be processed.

[0142] In one implementation of this application, the detection location information represents the distance between the detection device and the flying shear, and the detection time information represents the movement time of the steel to be processed from the flying shear position to the detection device; the correction module corrects the opening time of the first dust removal device according to the detection location information and the detection time information in the following manner: calculating the actual speed of the steel to be processed according to the distance information and the movement time; and correcting the opening time of the first dust removal device according to the actual speed.

[0143] As one implementation of this application, the detection signal includes at least one of the signals acquired by a hot metal detector and the biting signal acquired by a pressure sensor.

[0144] As one implementation of this application, after the calculation module 802 controls the corresponding dust removal device according to the opening time, the correction module 803 is further configured to: shut down the dust removal device corresponding to the rolling mill when it is determined that the rolling mill is throwing out tails.

[0145] In this embodiment, the target dust removal timing control strategy for the steel to be processed is determined by the rolling specifications and a preset correspondence. Based on this strategy, the activation time of each dust removal device is calculated, thereby controlling each device. It is understood that in this embodiment, different dust removal timing control strategies are used for steel with different rolling specifications to control it. This reduces impurities and contaminants introduced during the finishing rolling process, thus ensuring the quality and performance of the steel.

[0146] It should be noted that the information interaction and execution process between the above-mentioned devices / units are based on the same concept as the method embodiments of this application, and are devices corresponding to the above-mentioned device identification method. All implementation methods in the above-mentioned method embodiments are applicable to the embodiments of this device. For details on its specific functions and the technical effects it brings, please refer to the method embodiment section, which will not be repeated here.

[0147] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional units and modules is merely an example. In practical applications, the above functions can be assigned to different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit. Furthermore, the specific names of the functional units and modules are only for easy differentiation and are not intended to limit the scope of protection of this application. The specific working process of the units and modules in the above system can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0148] Figure 9 A schematic diagram of the hardware structure of an electronic device provided in yet another embodiment of this application is shown.

[0149] The device may include a processor 901 and a memory 902 storing computer program instructions.

[0150] When processor 901 executes a computer program, it implements the steps in any of the above method embodiments.

[0151] For example, a computer program may be divided into one or more modules / units, one or more of which are stored in memory 902 and executed by processor 901 to complete the present application. One or more modules / units may be a series of computer program instruction segments capable of performing a specific function, which describe the execution process of the computer program in the device.

[0152] Specifically, the processor 901 may include a central processing unit (CPU), an application-specific integrated circuit (ASIC), or one or more integrated circuits that can be configured to implement the embodiments of this application.

[0153] Memory 902 may include mass storage for data or instructions. For example, and not limitingly, memory 902 may include a hard disk drive (HDD), floppy disk drive, flash memory, optical disk, magneto-optical disk, magnetic tape, or Universal Serial Bus (USB) drive, or a combination of two or more of these. Where appropriate, memory 902 may include removable or non-removable (or fixed) media. Where appropriate, memory 902 may be internal or external to the integrated gateway disaster recovery device. In a particular embodiment, memory 902 is non-volatile solid-state memory.

[0154] Memory may include read-only memory (ROM), random access memory (RAM), disk storage media devices, optical storage media devices, flash memory devices, and electrical, optical, or other physical / tangible memory storage devices. Therefore, typically, memory includes one or more tangible (non-transitory) computer-readable storage media (e.g., memory devices) encoded with software including computer-executable instructions, and when the software is executed (e.g., by one or more processors), it is operable to perform the operations described with reference to the methods according to one aspect of this disclosure.

[0155] The processor 901 implements any of the methods described above by reading and executing computer program instructions stored in the memory 902.

[0156] In one example, the electronic device may also include a communication interface 903 and a bus 910. The processor 901, memory 902, and communication interface 903 are connected via the bus 910 and communicate with each other.

[0157] The communication interface 903 is mainly used to realize communication between various modules, devices, units and / or equipment in the embodiments of this application.

[0158] Bus 910 includes hardware, software, or both, that couples components of an online data traffic metering device together. For example, and not limitingly, the bus may include an Accelerated Graphics Port (AGP) or other graphics bus, an Enhanced Industry Standard Architecture (EISA) bus, a Front Side Bus (FSB), HyperTransport (HT) interconnect, an Industry Standard Architecture (ISA) bus, an Infinite Bandwidth Interconnect, a Low Pin Count (LPC) bus, a memory bus, a Microchannel Architecture (MCA) bus, a Peripheral Component Interconnect (PCI) bus, a PCI-Express (PCI-X) bus, a Serial Advanced Technology Attachment (SATA) bus, a Video Electronics Standards Association Local (VLB) bus, or other suitable buses, or combinations of two or more of these. Where appropriate, bus 910 may include one or more buses. Although specific buses are described and illustrated in embodiments of this application, this application contemplates any suitable bus or interconnect.

[0159] This electronic device can execute the dust removal device control method in this application embodiment based on the rolling specifications of the steel to be processed and a preset correspondence, thereby achieving a combination of Figure 2 and Figure 8 The control method and apparatus for the dust removal device are described.

[0160] Furthermore, in conjunction with the methods in the above embodiments, this application embodiment can provide a computer storage medium for implementation. This computer storage medium stores computer program instructions; when these computer program instructions are executed by a processor, they implement any of the methods in the above embodiments.

[0161] This application also provides a computer program product, including a computer program, which, when executed, implements a method for controlling any of the dust removal devices described in the above embodiments.

[0162] It should be clarified that this application is not limited to the specific configurations and processes described above and shown in the figures. For the sake of brevity, detailed descriptions of known methods are omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method process of this application is not limited to the specific steps described and shown. Those skilled in the art can make various changes, modifications, and additions, or change the order of steps, after understanding the spirit of this application.

[0163] The functional modules shown in the above-described block diagram can be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, they can be, for example, electronic circuits, application-specific integrated circuits (ASICs), appropriate firmware, plug-ins, function cards, etc. When implemented in software, the elements of this application are programs or code segments used to perform the required tasks. Programs or code segments can be stored on a machine-readable medium or transmitted over a transmission medium or communication link via data signals carried on a carrier wave. "Machine-readable medium" can include any medium capable of storing or transmitting information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, radio frequency (RF) links, etc. Code segments can be downloaded via computer grids such as the Internet, intranets, etc.

[0164] It should also be noted that the exemplary embodiments mentioned in this application describe methods or systems based on a series of steps or apparatus. However, this application is not limited to the order of the above steps; that is, the steps can be performed in the order mentioned in the embodiments, or in a different order, or several steps can be performed simultaneously.

[0165] The aspects of this disclosure have been described above with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this disclosure. It should be understood that each block in the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing apparatus to produce a machine such that these instructions, executable via the processor of the computer or other programmable data processing apparatus, enable the implementation of the functions / actions specified in one or more blocks of the flowchart illustrations and / or block diagrams. Such a processor can be, but is not limited to, a general-purpose processor, a special-purpose processor, a special application processor, or a field-programmable logic circuit. It is also understood that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can also be implemented by special-purpose hardware performing the specified functions or actions, or can be implemented by a combination of special-purpose hardware and computer instructions.

[0166] The above description is merely a specific implementation of this application. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, modules, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here. It should be understood that the protection scope of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the protection scope of this application.

Claims

1. A control method for a dust removal device, characterized in that, The method includes dust removal devices for each of the multiple rolling mills that perform hot continuous rolling on the steel to be processed. Based on the rolling specifications of the steel to be processed and the preset correspondence, the target dust removal timing control strategy corresponding to the steel to be processed is determined. The preset correspondence includes rolling specification conditions corresponding to different dust removal timing control strategies, and the target dust removal timing control strategy is at least one of the different dust removal timing control strategies. Based on the target dust removal timing control strategy, calculate the start-up time of each dust removal device; The dust removal device is controlled according to the said start time; The rolling specifications include rolling thickness parameters. The step of determining the target dust removal timing control strategy corresponding to the steel to be processed based on the rolling specifications and preset correspondence includes: Determine the target rolling specification conditions that the rolling thickness parameters must satisfy; From the preset correspondence, determine the target dust removal timing control strategy corresponding to the target rolling specification conditions; The calculation of the start-up time of each dust removal device based on the target dust removal timing control strategy includes: In response to the detection that the steel to be processed has reached the flying shear position, the dust removal activation position information of each dust removal device is determined according to the target dust removal timing control strategy. The speed at which the steel to be processed is obtained; Based on the speed and the dust removal activation position information, calculate the activation time for the steel to be processed to reach the dust removal activation position; The dust removal timing control strategy includes a first dust removal timing control strategy, a second dust removal timing control strategy, and a third dust removal timing control strategy. The step of determining the dust removal activation position information corresponding to each dust removal device according to the target dust removal timing control strategy includes: Obtain the rolling mill position information of n rolling mills arranged sequentially along the running direction of the steel to be processed, where n is a positive integer; If the target dust removal timing control strategy is determined to be the first dust removal timing control strategy, the mill position information of the nth mill is used as the dust removal activation position information of the dust removal device corresponding to the nth mill; or... If the target dust removal timing control strategy is determined to be the second dust removal timing control strategy, the mill position information of the (n-1)th mill is used as the dust removal activation position information of the dust removal device corresponding to the nth mill; or... When the target dust removal timing control strategy is determined to be the third dust removal timing control strategy, the flying shear position is used as the dust removal start position information corresponding to each dust removal device.

2. The method according to claim 1, characterized in that, After controlling the dust removal device according to the said start-up time, the method further includes: Acquire a detection signal, the detection signal including at least the detection position information corresponding to the detection device, and the detection time information of the detection device detecting the steel to be processed; If the target mill is not detected to be in a biting state at the opening time, the opening time of the first dust removal device is corrected according to the detection location information and the detection time information. The target mill is the mill where the dust removal device corresponding to the opening time is located. The first dust removal device is the dust removal device corresponding to the mill located after the target mill among a plurality of mills arranged sequentially along the running direction of the steel to be processed.

3. The method according to claim 2, characterized in that, The detection location information represents the distance information between the detection device and the flying shear, and the detection time information represents the movement time of the steel to be processed from the flying shear position to the detection device. The step of correcting the start-up time of the first dust removal device based on the detection location information and the detection time information includes: Calculate the actual speed of the steel to be processed based on the distance information and the movement time; The start-up time of the first dust removal device is adjusted according to the actual speed.

4. The method according to claim 2, characterized in that, The detection signal includes at least one of the signals acquired by a hot metal detector and the biting signal acquired by a pressure sensor.

5. The method according to claim 1, characterized in that, After controlling the dust removal device according to the said start-up time, the method further includes: If it is determined that the mill is experiencing tailing failure, the dust removal device corresponding to the mill shall be shut down.

6. A control device for a dust removal apparatus, characterized in that, The control device includes dust removal devices for each of the multiple rolling mills that perform hot continuous rolling of the steel to be processed. The determination module is used to determine the target dust removal timing control strategy corresponding to the steel to be processed based on the rolling specifications of the steel to be processed and the preset correspondence, wherein the preset correspondence includes rolling specification conditions corresponding to different dust removal timing control strategies, and the target dust removal timing control strategy is at least one of the different dust removal timing control strategies; The calculation module is used to calculate the start-up time of each dust removal device based on the target dust removal timing control strategy. The control module is used to control the corresponding dust removal device according to the said start time; The rolling specifications include rolling thickness parameters. The determining module is also used to determine the target rolling specification conditions that the rolling thickness parameters satisfy; From the preset correspondence, determine the target dust removal timing control strategy corresponding to the target rolling specification conditions; The calculation module is further configured to, in response to detecting that the steel to be processed has reached the flying shear position, determine the dust removal activation position information corresponding to each dust removal device according to the target dust removal timing control strategy; acquire the speed of the steel to be processed; calculate the activation time of the steel to be processed reaching the dust removal activation position based on the speed and the dust removal activation position information; the dust removal timing control strategy includes a first dust removal timing control strategy, a second dust removal timing control strategy, and a third dust removal timing control strategy; acquire the mill position information of n mills sequentially arranged along the running direction of the steel to be processed, where n is a positive integer. If the target dust removal timing control strategy is determined to be the first dust removal timing control strategy, the mill position information of the nth mill is used as the dust removal start position information of the dust removal device corresponding to the nth mill; or, if the target dust removal timing control strategy is determined to be the second dust removal timing control strategy, the mill position information of the (n-1)th mill is used as the dust removal start position information of the dust removal device corresponding to the nth mill; or, if the target dust removal timing control strategy is determined to be the third dust removal timing control strategy, the flying shear position is used as the dust removal start position information corresponding to each dust removal device.

7. An electronic device, characterized in that, The device includes: Processor and memory storing computer program instructions; When the processor executes the computer program instructions, it implements the method as described in any one of claims 1-5.

8. A computer storage medium, characterized in that, The computer storage medium stores computer program instructions, which, when executed by a processor, implement the method as described in any one of claims 1-5.

9. A computer program product, characterized in that, When the instructions in the computer program product are executed by the processor of the electronic device, the electronic device causes the electronic device to perform the method as described in any one of claims 1-5.

Images