Method, device, medium and equipment for detecting abnormal furnace roller in annealing furnace

Abstract

The invention provides a method, device, medium and equipment for detecting abnormal furnace rollers in an annealing furnace, and the method comprises the following steps: sequentially grinding each furnace roller group in the annealing furnace based on a preset first grinding strategy to obtain a first grinding result; the annealing furnace comprises furnace rollers of a plurality of furnace roller groups; determining an abnormal furnace roller group in the plurality of furnace roller groups according to the first grinding result; determining an abnormal furnace roller in the abnormal furnace roller group based on a second grinding strategy; thus, the furnace roller set is ground through the first grinding strategy, if the furnace roller set is abnormal, the first grinding result is abnormal, and the abnormal furnace roller set can be rapidly positioned; and then the abnormal furnace roller set is continuously ground through the second grinding strategy, the area where the abnormal furnace rollers are located can be directly locked or continuously reduced according to the second grinding result, and therefore the abnormal furnace rollers can be rapidly positioned, the troubleshooting efficiency of the abnormal furnace rollers is improved, and the production efficiency of the strip steel production line is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of annealing furnace detection, and in particular to a method, a device, a medium and equipment for detecting abnormal furnace rollers in an annealing furnace. Background Art

[0002] During the production of strip steel, the residual oil and iron on the surface of the strip steel are cleaned and then enter the furnace for annealing. The strip steel in the annealing furnace runs synchronously with the support of the furnace rollers.

[0003] At present, the continuous annealing machine furnace roller group includes various types of rollers such as carbon sleeve rollers, ceramic rollers, and heat-resistant steel rollers. It is normal for the furnace rollers in the annealing furnace to be nodulated. When the furnace rollers in the annealing furnace are nodulated, the nodules on the roller surface will come into contact with the hot strip steel and will produce marks, making it impossible to deliver the rollers to customers normally. At the same time, roller damage and dislocation often occur. When the roller body is abnormal and continuous production cannot continue, production needs to be stopped for roller replacement.

[0004] In the related art, the furnace rollers are usually checked manually and abnormal furnace rollers are replaced regularly. However, there are many furnace rollers in the continuous annealing unit, and the efficiency of manual inspection is low, which affects the production efficiency of the production line. Summary of the invention

[0005] In view of the problems existing in the prior art, the embodiments of the present invention provide a method, device, medium and equipment for detecting abnormal furnace rollers in an annealing furnace, so as to solve or partially solve the technical problem that the abnormal furnace rollers in the annealing furnace are manually checked in the prior art, the checking efficiency is low, and thus the production efficiency of the strip production line is affected.

[0006] A first aspect of the present invention provides a method for detecting abnormal furnace rollers in an annealing furnace, the method comprising:

[0007] Grinding each furnace roller group in the annealing furnace in turn based on a preset first grinding strategy to obtain a first grinding result; the annealing furnace includes a plurality of furnace roller groups;

[0008] determining an abnormal furnace roll group among a plurality of furnace roll groups according to the first grinding result;

[0009] An abnormal furnace roll is determined in the abnormal furnace roll group based on a preset second grinding strategy; wherein the first grinding strategy and the second grinding strategy are used to form a speed difference between the strip steel running above the furnace roll and the furnace roll.

[0010] In the above scheme, the first grinding strategy is used to grind each furnace roller group in the annealing furnace in turn to obtain a first grinding result, including:

[0011] Obtain the furnace roll numbers in the current furnace roll group, and obtain the roll speed of each furnace roll from a preset first mapping file according to the furnace roll number of each furnace roll; the first mapping file is pre-created based on the first grinding strategy, and the first mapping file stores the corresponding relationship between the furnace roll numbers and the roll speeds in each furnace roll group; the current furnace roll group is any furnace roll group among all furnace roll groups;

[0012] The furnace rollers in the furnace roller group are controlled to rotate at corresponding roller speeds, and when the strip steel passes through the current furnace roller group, a corresponding first grinding result is obtained; wherein,

[0013] The speeds of the furnace rolls with odd roll numbers in the furnace roll group are consistent, and the speeds of the furnace rolls with even roll numbers are consistent; if the current furnace roll group is in a grinding state, the remaining furnace roll groups are in a non-grinding state; in the non-grinding state, the linear speed of the furnace rolls is consistent with the strip speed.

[0014] In the above solution, determining an abnormal furnace roll group among the plurality of furnace roll groups according to the first grinding result includes:

[0015] Determine whether the first grinding result corresponding to the current furnace roll group is an abnormal grinding result; the abnormal grinding result is a strip steel segment with a periodic mark;

[0016] If it is determined that the first grinding result is an abnormal grinding result, the current furnace roll group is determined to be an abnormal furnace roll group.

[0017] In the above solution, the determining of the abnormal furnace roller in the abnormal furnace roller group based on the preset second grinding strategy includes:

[0018] Divide the furnace rollers in the abnormal furnace roller group into multiple sub-furnace roller groups, and obtain the group number of each sub-furnace roller group;

[0019] Obtaining the roller speed of each group of sub-furnace rollers from a preset second mapping file according to the group number of each sub-furnace roller group; the second mapping file is pre-created based on the second grinding strategy, and the corresponding relationship between each sub-furnace roller group and the roller speed is stored in the second mapping file;

[0020] Controlling each of the sub-furnace roller groups to rotate at a corresponding roller speed, and obtaining a corresponding second grinding result after the strip steel passes through each of the sub-furnace roller groups;

[0021] An abnormal furnace roll is determined in the abnormal furnace roll group according to the second grinding result.

[0022] In the above solution, determining the abnormal furnace roller in the abnormal furnace roller group according to the second grinding result includes:

[0023] Determine the current cycle in which the mark in the second grinding result appears;

[0024] Determine the reference period for the appearance of the mark corresponding to each sub-furnace roller group according to the roller speed, furnace roller radius and strip speed of each sub-furnace roller group;

[0025] Compare the current cycle with each reference cycle, and determine the sub-furnace roller group corresponding to the reference cycle that is the same as the current cycle as the abnormal sub-furnace roller group;

[0026] The abnormal roller is determined in the abnormal sub-roller group.

[0027] In the above scheme, the reference period of the appearance of the mark corresponding to each sub-furnace roller group is determined according to the roller speed, furnace roller radius and strip speed of each sub-furnace roller group, including:

[0028] According to the formula Determine the reference period S of the mark corresponding to each sub-furnace roller group; where,

[0029] The V t is the strip speed, V0 is the roller speed corresponding to each sub-furnace roller group, and D is the diameter of the furnace roller.

[0030] A second aspect of the present invention provides a device for detecting abnormal furnace rollers in an annealing furnace, the device comprising:

[0031] A grinding unit is used to grind each furnace roller group in the annealing furnace in turn based on a preset first grinding strategy to obtain a first grinding result; the annealing furnace includes a plurality of furnace roller groups, and the number of furnace rollers in each furnace roller group is the same;

[0032] A first determining unit, configured to determine an abnormal furnace roll group among a plurality of furnace roll groups according to the first grinding result;

[0033] The second determination unit is used to determine the abnormal furnace roller in the abnormal furnace roller group based on a preset second grinding strategy; wherein the first grinding strategy and the second grinding strategy are used to form a speed difference between the strip running above the furnace roller and the furnace roller.

[0034] In the above solution, the grinding unit is specifically used for:

[0035] Obtain the furnace roll numbers in the current furnace roll group, and obtain the roll speed of each furnace roll from a preset first mapping file according to the furnace roll number of each furnace roll; the first mapping file is pre-created based on the first grinding strategy, and the first mapping file stores the corresponding relationship between the furnace roll numbers and the roll speeds in each furnace roll group; the current furnace roll group is any furnace roll group among all furnace roll groups;

[0036] The furnace rollers in the furnace roller group are controlled to rotate at corresponding roller speeds, and when the strip steel passes through the current furnace roller group, a corresponding first grinding result is obtained; wherein,

[0037] The speeds of the furnace rolls with odd roll numbers in the furnace roll group are consistent, and the speeds of the furnace rolls with even roll numbers are consistent; if the current furnace roll group is in a grinding state, the remaining furnace roll groups are in a non-grinding state; in the non-grinding state, the linear speed of the furnace rolls is consistent with the strip speed.

[0038] According to a third aspect of the present invention, a computer-readable storage medium is provided, on which a computer program is stored, and when the program is executed by a processor, the steps of any one of the methods described in the first aspect are implemented.

[0039] According to a fourth aspect of the present invention, a computer device is provided, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the steps of any one of the methods described in the first aspect are implemented.

[0040] The present invention provides a method, device, medium and equipment for detecting abnormal furnace rollers in an annealing furnace, the method comprising: grinding each furnace roller group in the annealing furnace in turn based on a preset first grinding strategy to obtain a first grinding result; the annealing furnace comprises a plurality of furnace roller groups; determining an abnormal furnace roller group in the plurality of furnace roller groups based on the first grinding result; determining an abnormal furnace roller in the abnormal furnace roller group based on a preset second grinding strategy; wherein the first grinding strategy and the second grinding strategy are used to form a speed difference between the strip steel running above the furnace roller and the furnace roller; in this way, the furnace roller group is firstly ground by the first grinding strategy, and if the furnace roller group is abnormal, then the first grinding result will also be abnormal, so that the abnormal furnace roller group can be quickly located; and then the abnormal furnace roller group is continued to be ground by the second grinding strategy, and the area where the abnormal furnace roller is located is continued to be narrowed according to the second grinding result, so that the abnormal furnace roller can be quickly located, thereby improving the efficiency of troubleshooting abnormal furnace rollers and improving the production efficiency of the strip steel production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0042] Figure 1 A schematic flow chart of a method for detecting abnormal furnace rollers in an annealing furnace according to an embodiment of the present invention is shown;

[0043] Figure 2 A schematic diagram of the structure of a device for detecting abnormal furnace rollers in an annealing furnace according to an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0044] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0045] The present invention provides a method for detecting abnormal furnace rollers in an annealing furnace, such as Figure 1 As shown, the method mainly includes the following steps:

[0046] S110, grinding each roller group in the annealing furnace in turn based on a preset first grinding strategy to obtain a first grinding result; the annealing furnace includes multiple roller groups, and the number of rollers in each roller group is the same.

[0047] There are many furnace rollers in the horizontal annealing furnace. The present invention can group the furnace rollers in the heavy control area (important control area) to obtain multiple furnace roller groups, and determine the number of furnace rollers in each furnace roller group according to the total number of furnace rollers and the number of groups. The number of furnace rollers in each furnace roller group can be the same or different. For example, there are 100 furnace rollers, which can be evenly divided into four groups, namely A, B, C, and D, each group containing 25 furnace rollers.

[0048] In each furnace roller group, each furnace roller has a unique number, and the furnace roller numbers of different groups can be reused. For example, in furnace roller group A, the numbers are from 1 to 25; in furnace roller group B, the numbers can also be 1 to 25.

[0049] Then, based on the preset first grinding strategy, each furnace roller group in the annealing furnace is ground in turn to obtain a first grinding result, specifically including:

[0050] Obtain the furnace roll number in the current furnace roll group, and obtain the roll speed of the furnace roll from a preset first mapping file according to the furnace roll number of each furnace roll; the first mapping file is pre-created based on the first grinding strategy, and the first mapping file stores the corresponding relationship between the furnace roll number and the roll speed in each furnace roll group; the current furnace roll group is any furnace roll group among all furnace roll groups;

[0051] The furnace rollers in the furnace roller group are controlled to rotate according to the corresponding roller speed, and when the strip passes through the current furnace roller group, the corresponding first grinding result is obtained; wherein,

[0052] The speeds of the furnace rolls with odd numbers in the furnace roll group are consistent, and the speeds of the furnace rolls with even numbers are consistent; if the current furnace roll group is in a grinding state, the remaining furnace roll groups are in a non-grinding state; in the non-grinding state, the furnace roll linear speed is consistent with the strip speed.

[0053] Specifically, a first mapping file may be created in advance according to the first grinding strategy. The first grinding strategy is mainly to set a corresponding roller speed for each furnace roller in each furnace roller group, and map the furnace roller number with the corresponding roller speed to form a first mapping file. The first mapping file may be in a document format or in a table format. When the first mapping file is a table, it may be as shown in Table 1:

[0054] Table 1

[0055]

[0056] It is worth noting that when the furnace roller is in a non-grinding state, the furnace roller linear speed is consistent with the strip speed. When the furnace roller is in a grinding state, the furnace roller linear speed can increase the speed change amount X or decrease the speed change amount X based on the strip speed, so that a speed difference is formed between the strip and the furnace roller, and the furnace roller can be ground.

[0057] That is, the furnace roller linear speed V0 can be determined according to formula (1):

[0058] V0=V t ±X(1)

[0059] In formula (1), V t is the strip speed.

[0060] In addition, in order to further improve the grinding efficiency of the furnace rollers, for the furnace rollers in any furnace roller group, the roller speeds of the furnace rollers with odd numbers are set to be the same, the roller speeds of the furnace rollers with even numbers are set to be the same, and the linear speeds of adjacent furnace rollers are inconsistent.

[0061] Referring to Table 1, the furnace roller numbers in furnace roller group A, furnace roller group B, furnace roller group C and furnace roller group D are the same. For any furnace roller group, the sum of the strip speed and the speed deviation (+X) can be used as the roller speed of the odd-numbered furnace roller, and the difference between the strip speed and the speed deviation (-X) can be used as the roller speed of the even-numbered furnace roller. In this way, in each furnace roller group, compared with the speed of the strip, the speed of one of the two adjacent furnace rollers forms a positive deviation with the speed of the strip, and the speed of the other furnace roller forms a negative deviation with the speed of the strip. When there is an abnormal furnace roller in a furnace roller group (for example, there is a furnace nodule on the furnace roller), the periodic mark of the nodule will be left on the surface of the strip after the strip passes through the furnace roller group; if there is no abnormal furnace roller in the furnace roller group, the periodic mark will not be left on the surface of the strip after the strip passes through the furnace roller group. That is, the first grinding result includes: strip segments with periodic marks and strip segments without periodic marks.

[0062] S111, determining an abnormal furnace roll group among multiple furnace roll groups according to the first grinding result.

[0063] In one embodiment, determining an abnormal furnace roll group among a plurality of furnace roll groups according to the first grinding result includes:

[0064] Determine whether the first grinding result corresponding to the current furnace roll group is an abnormal grinding result; the abnormal grinding result is a strip steel section with a periodic mark;

[0065] If it is determined that the first grinding result is an abnormal grinding result, the current furnace roll group is determined to be an abnormal furnace roll group.

[0066] Specifically, since each furnace roll group is not in the grinding state at the same time, when a furnace roll group is in the grinding state, the remaining furnace roll groups are in the non-grinding state. Therefore, after the strip passes through each furnace roll group, if the first grinding result is an abnormal grinding result, it means that the furnace roll group is an abnormal furnace roll group.

[0067] For example, assuming that furnace roll group A is in a grinding state, furnace roll groups B, C and D are in a non-grinding state, when the strip passes through furnace roll group A, if there are periodic marks on the surface of the strip, it means that furnace roll group A is an abnormal furnace roll group. If there are no periodic marks on the surface of the strip after passing through furnace roll group A, it means that furnace roll group A is a normal furnace roll group.

[0068] The same operation is performed on the remaining B furnace roll group, C furnace roll group and D furnace roll group, thereby accurately identifying the abnormal furnace roll group.

[0069] When determining whether there is a periodic mark on the first grinding result, an image recognition algorithm may be used for recognition, or manual recognition may be used, which is not limited here.

[0070] S112, determining abnormal furnace rollers in the abnormal furnace roller group based on a preset second grinding strategy.

[0071] After the abnormal furnace roll group is determined, since the abnormal furnace roll group includes multiple furnace rolls, in order to further narrow the range of abnormal furnace rolls, it is also necessary to determine the abnormal furnace rolls in the abnormal furnace roll group based on a preset second grinding strategy.

[0072] In one embodiment, determining an abnormal furnace roll in an abnormal furnace roll group based on a preset second grinding strategy includes:

[0073] Divide the furnace rollers in the abnormal furnace roller group into multiple sub-furnace roller groups, and obtain the group number of each sub-furnace roller group;

[0074] The roller speed of each group of sub-furnace rollers is obtained from a preset second mapping file according to the group number of each sub-furnace roller group; the second mapping file is pre-created based on the second grinding strategy, and the corresponding relationship between each sub-furnace roller group and the roller speed is stored in the second mapping file;

[0075] Control each sub-furnace roller group to rotate according to the corresponding roller speed, and obtain the corresponding second grinding result after the strip passes through each sub-furnace roller group;

[0076] The abnormal furnace roll is determined in the abnormal furnace roll group according to the second grinding result.

[0077] In one embodiment, determining an abnormal furnace roller in the abnormal furnace roller group according to the second grinding result includes:

[0078] Determine the current cycle in which the mark appears in the second grinding result;

[0079] Determine the reference period for the appearance of the mark corresponding to each sub-furnace roller group according to the roller speed, furnace roller radius and strip speed of each sub-furnace roller group;

[0080] Compare the current cycle with each reference cycle, and determine the sub-furnace roller group corresponding to the reference cycle that is the same as the current cycle as the abnormal sub-furnace roller group;

[0081] The abnormal rollers are identified in the abnormal sub-roller group.

[0082] In one embodiment, determining a reference period for the appearance of a mark corresponding to each sub-furnace roller group according to the roller speed of each sub-furnace roller group, the furnace roller radius and the strip speed includes:

[0083] According to the formula Determine the reference period S of the mark corresponding to each sub-furnace roller group; where,

[0084] V t is the strip speed, V0 is the roller speed corresponding to each sub-furnace roller group, and D is the furnace roller diameter.

[0085] Specifically, a second mapping file can be created in advance according to the second grinding strategy. The second grinding strategy is mainly to set corresponding roller speeds for each sub-furnace roller group in each furnace roller group, and map the sub-furnace roller group number with the corresponding roller speed to form a second mapping file.

[0086] The second mapping file may be in a document format or in a table format. When the second mapping file is a table, it may be as shown in Table 2:

[0087] Table 2

[0088]

[0089] Referring to Table 2, according to the same grouping method, the furnace roller group A, furnace roller group B, furnace roller group C and furnace roller group D are respectively divided into the same number of sub-furnace roller groups, and the furnace rollers of the abnormal furnace roller group are also divided into multiple sub-furnace roller groups. Taking the furnace roller group A as an example, assuming that the furnace roller group A is an abnormal furnace roller group, then the furnace roller group A can be divided into 9 sub-furnace roller groups. Among them, the furnace rollers with furnace roller numbers 1, 2, and 3 are a sub-furnace roller group, the furnace rollers with furnace roller numbers 4, 5, and 6 are a sub-furnace roller group, the furnace rollers with furnace roller numbers 7, 8, and 9 are a sub-furnace roller group, the furnace rollers with furnace roller numbers 10, 11, and 12 are a sub-furnace roller group, the furnace rollers with furnace roller number 13 are a sub-furnace roller group, the furnace rollers with furnace roller number 14, 15, and 16 are a sub-furnace roller group, the furnace rollers with furnace roller number 17, 18, and 19 are a sub-furnace roller group, the furnace rollers with furnace roller number 20, 21, and 22 are a sub-furnace roller group, and the furnace rollers with furnace roller number 23, 24, and 25 are a sub-furnace roller group.

[0090] From formula (1), it can be seen that if the linear speed of the furnace roller is different, the imprint period formed on the strip is also different. When the strip speed and the furnace roller speed are the same, the imprint period is the circumference of the furnace roller. When the strip speed is greater than the linear speed of the furnace roller, the imprint period will increase; when the strip speed is less than the linear speed of the furnace roller, the imprint period will decrease.

[0091] Therefore, for each sub-furnace roller group, the reference period corresponding to the appearance of the mark (how many meters the mark appears every) can be determined according to formula (1).

[0092] Therefore, in order to clearly identify the abnormal sub-furnace roller group, the roller speed of each sub-furnace roller group is different in the present invention. Among them, the speed change X, Y, Z and W can be determined according to actual conditions, for example, X can be 5m / min, Y can be 10m / min, Z can be 15m / min, and W can be 20m / min.

[0093] In this way, after the strip passes through each sub-furnace roller group, the second grinding result can be obtained, and then the current cycle in which the mark in the second grinding result appears can be determined by an image recognition algorithm or a manual measurement method, and the current cycle is compared with the above-mentioned reference cycles. If the current cycle is the same as the reference cycle of the sub-furnace roller groups with furnace roller numbers 1, 2, and 3, it means that there are abnormal furnace rollers in the sub-furnace roller groups with furnace roller numbers 1, 2, and 3.

[0094] In this way, the inspection area is narrowed from 100 furnace rollers to 1 to 2 furnace rollers. The staff can lock the abnormal furnace rollers from the identified 1 to 2 furnace rollers, thereby greatly improving the detection efficiency of abnormal furnace rollers.

[0095] It should be noted that after each furnace roller group is ground based on the first grinding strategy, in addition to being able to lock on to the abnormal furnace roller group, because the linear speeds of the odd-numbered furnace rollers and the even-numbered furnace rollers in the abnormal furnace roller group are different, and the corresponding reference periods of the marks at different linear speeds are also different, therefore, after each furnace roller group is ground based on the first grinding strategy, it can actually be determined whether the abnormality is in the odd-numbered furnace roller or the even-numbered furnace roller.

[0096] Then, based on the above-mentioned grinding, when determining the abnormal wheel roller among the abnormal furnace rollers based on the second grinding strategy, it is equivalent to re-shuffling the odd-numbered furnace rollers and the even-numbered furnace rollers, and adopting the 3*8+1 mode (divided into 9 groups); so after the second grinding strategy is used to lock the abnormal sub-furnace roller group, combined with the result of the first grinding strategy determining that the odd-numbered or even-numbered furnace rollers are the abnormal furnace roller group, 1 to 2 abnormal furnace rollers can be locked.

[0097] In the present invention, the furnace roller group is firstly ground using the first grinding strategy. If the furnace roller group is abnormal, the first grinding result will also be abnormal, and the period S will change, so that the abnormal furnace roller group can be quickly located; and then the second grinding strategy is used to continue grinding the abnormal furnace roller group. According to the second grinding result, the area where the abnormal furnace roller is located is further narrowed, so that the abnormal furnace roller can be quickly located, thereby improving the efficiency of troubleshooting abnormal furnace rollers and improving the production efficiency of the strip steel production line.

[0098] Based on the same inventive concept as in the above-mentioned embodiment, this embodiment also provides a device for detecting abnormal furnace rollers in an annealing furnace, such as Figure 2 As shown, the device comprises:

[0099] A grinding unit 21 is used to grind each furnace roller group in the annealing furnace in turn based on a preset first grinding strategy to obtain a first grinding result; the annealing furnace includes a plurality of furnace roller groups;

[0100] A first determining unit 22, configured to determine an abnormal furnace roll group among a plurality of furnace roll groups according to the first grinding result;

[0101] The second determination unit 23 is used to determine the abnormal furnace roller in the abnormal furnace roller group based on a preset second grinding strategy; wherein the first grinding strategy and the second grinding strategy are used to form a speed difference between the strip running above the furnace roller and the furnace roller.

[0102] In one embodiment, the grinding unit 21 is specifically used for:

[0103] Obtain the furnace roll numbers in the current furnace roll group, and obtain the roll speed of each furnace roll from a preset first mapping file according to the furnace roll number of each furnace roll; the first mapping file is pre-created based on the first grinding strategy, and the first mapping file stores the corresponding relationship between the furnace roll numbers and the roll speeds in each furnace roll group; the current furnace roll group is any furnace roll group among all furnace roll groups;

[0104] The furnace rollers in the furnace roller group are controlled to rotate at corresponding roller speeds, and when the strip steel passes through the current furnace roller group, a corresponding first grinding result is obtained; wherein,

[0105] The speeds of the furnace rolls with odd roll numbers in the furnace roll group are consistent, and the speeds of the furnace rolls with even roll numbers are consistent; if the current furnace roll group is in a grinding state, the remaining furnace roll groups are in a non-grinding state; in the non-grinding state, the linear speed of the furnace rolls is consistent with the strip speed.

[0106] Since the device introduced in the embodiment of the present invention is a device used to implement the method for detecting abnormal furnace rollers in an annealing furnace in the embodiment of the present invention, based on the method introduced in the embodiment of the present invention, the person skilled in the art can understand the specific structure and deformation of the device, so it is not described here. All devices used in the method of the embodiment of the present invention belong to the scope of protection of the present invention.

[0107] Based on the same inventive concept, this embodiment provides a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements any step of the method described above when executing the computer program.

[0108] Based on the same inventive concept, this embodiment provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the steps of any of the methods described above are implemented.

[0109] Through one or more embodiments of the present invention, the present invention has the following beneficial effects or advantages:

[0110] The present invention provides a method, device, medium and equipment for detecting abnormal furnace rollers in an annealing furnace, the method comprising: grinding each furnace roller group in the annealing furnace in turn based on a preset first grinding strategy to obtain a first grinding result; the annealing furnace comprises a plurality of furnace roller groups; determining an abnormal furnace roller group in the plurality of furnace roller groups based on the first grinding result; determining an abnormal furnace roller in the abnormal furnace roller group based on a preset second grinding strategy; wherein the first grinding strategy and the second grinding strategy are used to form a speed difference between the strip steel running above the furnace roller and the furnace roller; in this way, the furnace roller group is firstly ground by the first grinding strategy, and if the furnace roller group is abnormal, then the first grinding result will also be abnormal, so that the abnormal furnace roller group can be quickly located; and then the abnormal furnace roller group is continued to be ground by the second grinding strategy, and the area where the abnormal furnace roller is located is continued to be narrowed according to the second grinding result, so that the abnormal furnace roller can be quickly located, thereby improving the efficiency of troubleshooting abnormal furnace rollers and improving the production efficiency of the strip steel production line.

[0111] The algorithm and display provided herein are not inherently related to any particular computer, virtual system or other device. Various general purpose systems can also be used together with the teachings based on this. According to the above description, it is obvious that the structure required for constructing such systems. In addition, the present invention is not directed to any specific programming language either. It should be understood that various programming languages ​​can be utilized to realize the content of the present invention described herein, and the description of the above specific languages ​​is for disclosing the best mode of the present invention.

[0112] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0113] Similarly, it should be understood that in order to streamline the present disclosure and aid in understanding one or more of the various inventive aspects, in the above description of exemplary embodiments of the present invention, various features of the present invention are sometimes grouped together into a single embodiment, figure, or description thereof. However, this disclosed method should not be interpreted as reflecting the intention that the claimed invention requires more features than those explicitly recited in each claim. More specifically, as reflected in the claims below, inventive aspects lie in less than all the features of the individual embodiments disclosed above. Therefore, the claims that follow the specific embodiment are hereby expressly incorporated into the specific embodiment, with each claim itself serving as a separate embodiment of the present invention.

[0114] Those skilled in the art will appreciate that the modules in the devices in the embodiments may be adaptively changed and arranged in one or more devices different from the embodiments. The modules or units or components in the embodiments may be combined into one module or unit or component, and in addition they may be divided into a plurality of submodules or subunits or subcomponents. Except that at least some of such features and / or processes or units are mutually exclusive, all features disclosed in this specification (including the accompanying claims, abstracts and drawings) and all processes or units of any method or device disclosed in this manner may be combined in any combination. Unless otherwise expressly stated, each feature disclosed in this specification (including the accompanying claims, abstracts and drawings) may be replaced by an alternative feature providing the same, equivalent or similar purpose.

[0115] In addition, those skilled in the art will appreciate that, although some embodiments herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present invention and form different embodiments. For example, in the claims below, any one of the claimed embodiments may be used in any combination.

[0116] The various component embodiments of the present invention can be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. It should be understood by those skilled in the art that a microprocessor or digital signal processor (DSP) can be used in practice to implement some or all functions of some or all components in a gateway, proxy server, or system according to an embodiment of the present invention. The present invention can also be implemented as a device or apparatus program (e.g., a computer program and a computer program product) for executing part or all of the methods described herein. Such a program implementing the present invention can be stored on a computer-readable medium, or can have the form of one or more signals. Such a signal can be downloaded from an Internet website, or provided on a carrier signal, or provided in any other form.

[0117] It should be noted that the above embodiments illustrate the present invention rather than limit it, and that those skilled in the art may devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference symbol between brackets shall not be construed as a limitation on the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "one" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present invention may be implemented by means of hardware comprising a number of different elements and by means of a suitably programmed computer. In a unit claim enumerating a number of devices, several of these devices may be embodied by the same hardware item. The use of the words first, second, and third, etc., does not indicate any order. These words may be interpreted as names.

[0118] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0119] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for detecting abnormal furnace rollers in an annealing furnace, characterized in that: The method comprises: Grinding each furnace roller group in the annealing furnace in turn based on a preset first grinding strategy to obtain a first grinding result; the annealing furnace includes a plurality of furnace roller groups; determining an abnormal furnace roll group among a plurality of furnace roll groups according to the first grinding result; An abnormal furnace roll is determined in the abnormal furnace roll group based on a preset second grinding strategy; wherein the first grinding strategy and the second grinding strategy are used to form a speed difference between the strip steel running above the furnace roll and the furnace roll.

2. The method according to claim 1, characterized in that Grinding each furnace roller group in the annealing furnace in turn based on the preset first grinding strategy to obtain a first grinding result includes: Obtain the furnace roll numbers in the current furnace roll group, and obtain the roll speed of each furnace roll from a preset first mapping file according to the furnace roll number of each furnace roll; the first mapping file is pre-created based on the first grinding strategy, and the first mapping file stores the corresponding relationship between the furnace roll numbers and the roll speeds in each furnace roll group; the current furnace roll group is any furnace roll group among all furnace roll groups; The furnace rollers in the furnace roller group are controlled to rotate at corresponding roller speeds, and when the strip steel passes through the current furnace roller group, a corresponding first grinding result is obtained; wherein, The speeds of the furnace rolls with odd roll numbers in the furnace roll group are consistent, and the speeds of the furnace rolls with even roll numbers are consistent; if the current furnace roll group is in a grinding state, the remaining furnace roll groups are in a non-grinding state; in the non-grinding state, the linear speed of the furnace rolls is consistent with the strip speed.

3. The method according to claim 1, characterized in that The step of determining an abnormal furnace roll group from among the plurality of furnace roll groups according to the first grinding result comprises: Determine whether the first grinding result corresponding to the current furnace roll group is an abnormal grinding result; the abnormal grinding result is a strip steel segment with a periodic mark; If it is determined that the first grinding result is an abnormal grinding result, the current furnace roll group is determined to be an abnormal furnace roll group.

4. The method according to claim 1, characterized in that The determining of the abnormal furnace roller in the abnormal furnace roller group based on the preset second grinding strategy includes: Divide the furnace rollers in the abnormal furnace roller group into multiple sub-furnace roller groups, and obtain the group number of each sub-furnace roller group; Obtaining the roller speed of each group of sub-furnace rollers from a preset second mapping file according to the group number of each sub-furnace roller group; the second mapping file is pre-created based on the second grinding strategy, and the corresponding relationship between each sub-furnace roller group and the roller speed is stored in the second mapping file; Controlling each of the sub-furnace roller groups to rotate at a corresponding roller speed, and obtaining a corresponding second grinding result after the strip steel passes through each of the sub-furnace roller groups; An abnormal furnace roll is determined in the abnormal furnace roll group according to the second grinding result.

5. The method according to claim 4, characterized in that The determining of the abnormal furnace roller in the abnormal furnace roller group according to the second grinding result includes: Determine the current cycle in which the mark in the second grinding result appears; Determine the reference period for the appearance of the mark corresponding to each sub-furnace roller group according to the roller speed, furnace roller radius and strip speed of each sub-furnace roller group; Compare the current cycle with each reference cycle, and determine the sub-furnace roller group corresponding to the reference cycle that is the same as the current cycle as the abnormal sub-furnace roller group; The abnormal roller is determined in the abnormal sub-roller group.

6. The method according to claim 5, characterized in that Determining the reference period for the appearance of the mark corresponding to each sub-furnace roller group according to the roller speed, furnace roller radius and strip speed of each sub-furnace roller group includes: According to the formula Determine the reference period S of the appearance of the mark corresponding to each sub-furnace roller group; where, The V t is the strip speed, V0 is the roller speed corresponding to each sub-furnace roller group, and D is the diameter of the furnace roller.

7. A device for detecting abnormal furnace rollers in an annealing furnace, characterized in that: The device comprises: A grinding unit is used to grind each furnace roller group in the annealing furnace in turn based on a preset first grinding strategy to obtain a first grinding result; the annealing furnace includes a plurality of furnace roller groups; A first determining unit, configured to determine an abnormal furnace roll group among a plurality of furnace roll groups according to the first grinding result; The second determination unit is used to determine the abnormal furnace roller in the abnormal furnace roller group based on a preset second grinding strategy; wherein the first grinding strategy and the second grinding strategy are used to form a speed difference between the strip running above the furnace roller and the furnace roller.

8. The device according to claim 7, characterized in that The grinding unit is specifically used for: Obtain the furnace roll numbers in the current furnace roll group, and obtain the roll speed of each furnace roll from a preset first mapping file according to the furnace roll number of each furnace roll; the first mapping file is pre-created based on the first grinding strategy, and the first mapping file stores the corresponding relationship between the furnace roll numbers and the roll speeds in each furnace roll group; the current furnace roll group is any furnace roll group among all furnace roll groups; The furnace rollers in the furnace roller group are controlled to rotate at corresponding roller speeds, and when the strip steel passes through the current furnace roller group, a corresponding first grinding result is obtained; wherein, The speeds of the furnace rolls with odd roll numbers in the furnace roll group are consistent, and the speeds of the furnace rolls with even roll numbers are consistent; if the current furnace roll group is in a grinding state, the remaining furnace roll groups are in a non-grinding state; in the non-grinding state, the linear speed of the furnace rolls is consistent with the strip speed.

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

10. A computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the program, the steps of the method according to any one of claims 1 to 6 are implemented.

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