Hot-dip galvanized plate determination method based on air knife injection, air knife and hot-dip galvanized plate determination device based on air knife injection
By using the air knife parameter data library and dimensionless algorithm during the hot-dip galvanization process, the air knife parameters are determined, which solves the problem that traditional measurement methods cannot accurately detect air flow changes, and improves the galvanization quality and efficiency.
Patent Information
- Application Number
- CN202411815562.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-11
- Publication Date
- 2025-03-28
AI Technical Summary
Traditional measurement methods cannot accurately detect the airflow changes of the air knife during the spraying process, resulting in poor quality of galvanized steel and low practicality, which affects the galvanized efficiency.
Through the hot-dip galvanized sheet determination method based on air knife spraying, the candidate air knife parameters are determined using the air knife parameter data library and the preset zinc layer threshold range, and the target air knife parameters are determined through the air flow change data and dimensionless algorithm to ensure the plating quality.
Accurate measurement of plating defects is achieved, the probability of plating defects is reduced, the quality and efficiency of galvanizing are improved, and practicality is enhanced.
Smart Images
Figure CN119710513A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of strip steel production, and in particular to a method for determining a hot-dip galvanized sheet material based on air knife spraying, an air knife and a device. Background Art
[0002] At present, hot-dip galvanized steel sheets are widely used in the production of automobile sheets, household appliance sheets and various types of building sheets. In the process of hot-dip galvanizing steel sheets, the thickness of the coating is usually controlled by an air knife. Since consumers have demands for the appearance of the products, and corporate users such as automobiles and household appliances also have strict surface quality requirements for the outer covering parts of the products, the process of hot-dip galvanizing steel sheets is particularly important. In the process of hot-dip galvanizing steel sheets, surface defects of the steel sheets often exist, and the coating defects of hot-dip galvanized steel sheets are one of the common surface defects of hot-dip galvanized steel sheets.
[0003] However, in the process of detecting the airflow at the lip of the air knife, the traditional measurement method cannot directly and accurately determine the changes of the air knife during the blowing process due to the limited measurement accuracy of the equipment and limited measurement means, resulting in poor quality of galvanized steel; low practicality, which in turn affects the galvanizing efficiency. Summary of the invention
[0004] The embodiment of the present application provides a method, an air knife and a device for determining hot-dip galvanized sheet based on air knife blowing. The embodiment provided by the present application solves the technical problem that coating defects are difficult to measure in the prior art. The embodiment provided by the present application can accurately determine the airflow change data of the target air knife at the air knife outlet, and then determine the target air knife parameters corresponding to the target production task with the lowest probability of coating defects, thereby improving the galvanizing quality of the target sheet. While enhancing the practicality, it also greatly improves the galvanizing efficiency of the target sheet.
[0005] In a first aspect of an embodiment of the present application, an embodiment of the present application provides a method for determining a hot-dip galvanized sheet based on air knife spraying, the method for determining a hot-dip galvanized sheet based on air knife spraying comprising:
[0006] Based on a database of air knife parameter data corresponding to a target air knife to be detected during a blowing process and a preset zinc layer threshold range corresponding to the target air knife under a target production task, determining at least one set of candidate air knife parameters corresponding to the target air knife under a target production task;
[0007] For any set of the candidate air knife parameters, determining the airflow change data of the target air knife at the air knife outlet based on the candidate air knife parameters;
[0008] Based on each of the airflow change data and a preset dimensionless algorithm, target air knife parameters of the target air knife under the target production task are determined so that the target air knife completes the galvanizing process on the target plate.
[0009] In a feasible implementation manner, the at least one set of candidate air knife parameters corresponding to the target air knife under the target production task is determined based on the air knife parameter data set library corresponding to the target air knife to be detected during the blowing process and the preset zinc layer threshold range corresponding to the target air knife under the target production task, including:
[0010] When the target air knife to be detected is in the blowing process, the air knife parameters in the air knife parameter data group library that meet the preset zinc layer threshold range corresponding to the target air knife under the target production task are determined as at least one set of candidate air knife parameters corresponding to the target air knife under the target production task.
[0011] In a feasible implementation manner, the airflow change data includes pressure fluctuation data and vortex intensity data, and for any set of the candidate air knife parameters, determining the airflow change data of the target air knife at the air knife outlet based on the candidate air knife parameters includes:
[0012] For any group of the candidate air knife parameters, the pressure fluctuation data and the vortex intensity data of the target air knife at the air knife outlet are determined based on the candidate air knife parameters.
[0013] In a feasible implementation, based on each of the airflow change data and a preset dimensionless algorithm, determining the target air knife parameters of the target air knife under the target production task so that the target air knife completes the galvanizing process on the target plate includes:
[0014] Performing dimensionless calculation on the pressure fluctuation data and eddy current intensity data corresponding to the target air knife under each candidate air knife parameter according to a preset dimensionless algorithm, and determining the candidate dimensionless coefficient of the target air knife under each candidate air knife parameter;
[0015] Based on each of the candidate dimensionless coefficients, target air knife parameters of the target air knife under the target production task are determined so that the target air knife completes the galvanizing process on the target plate.
[0016] In a feasible implementation manner, determining the target air knife parameters of the target air knife under the target production task based on each of the candidate dimensionless coefficients so that the target air knife completes the galvanizing process on the target plate includes:
[0017] The minimum value among the candidate dimensionless coefficients is determined as the target dimensionless coefficient of the target air knife during the blowing process;
[0018] The candidate air knife parameters corresponding to the target dimensionless coefficients are determined as the target air knife parameters of the target air knife under the target production task, so that the target air knife completes the galvanizing process on the target plate.
[0019] According to a second aspect of the embodiments of the present application, an air knife is provided in the embodiments of the present application, comprising: an air knife body, the air knife body being composed of an air inlet pipeline and an air knife chamber, the air knife body being a hollow structure, the air inlet pipeline being plugged into the outside of the air knife body, and the air inlet pipeline passing through the air knife body, the air knife chamber being communicated with the air inlet pipeline, the air knife chamber being enclosed by a front cover plate, a rear cover plate, a knife body, an upper knife lip and a lower knife lip, and the upper knife lip and the lower knife lip connected to the air knife body are respectively arranged on the upper and lower sides of the air knife body, and at least one orifice plate is installed in the air knife chamber.
[0020] In a feasible implementation manner, the edges of the front cover plate and the rear cover plate of the air knife are both arc-shaped structures, and the curvature range of the arc-shaped structure is 0.05m≤R≤1m.
[0021] In a third aspect of the embodiment of the present application, the embodiment of the present application provides a device for determining a hot-dip galvanized sheet based on air knife spraying, the device for determining a hot-dip galvanized sheet based on air knife spraying comprising:
[0022] A first determination module is used to determine at least one set of candidate air knife parameters corresponding to the target air knife under the target production task based on an air knife parameter data group library corresponding to the target air knife to be detected during the blowing process and a preset zinc layer threshold range corresponding to the target air knife under the target production task;
[0023] A second determination module is used to determine the airflow change data of the target air knife at the air knife outlet based on the candidate air knife parameters for any group of the candidate air knife parameters;
[0024] The third determination module is used to determine the target air knife parameters of the target air knife under the target production task based on each of the airflow change data and a preset dimensionless algorithm, so that the target air knife completes the galvanizing process on the target plate.
[0025] In a fourth aspect of the embodiments of the present application, the embodiments of the present application provide an electronic device, comprising: a processor, a memory and a bus, wherein the memory stores machine-readable instructions executable by the processor, and when the electronic device is running, the processor communicates with the memory through the bus, and the machine-readable instructions are executed by the processor when running, such as the steps of the method for determining hot-dip galvanized sheet based on air knife blowing.
[0026] In a fifth aspect of the embodiments of the present application, the embodiments of the present application provide a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the method for determining hot-dip galvanized sheet based on air knife blowing as described above are executed.
[0027] The hot-dip galvanized plate determination method, air knife and device based on air knife blowing provided in the embodiments of the present application, compared with the prior art, the embodiments provided by the present application determine at least one group of candidate air knife parameters corresponding to the target air knife under the target production task by detecting the air knife parameter data group library corresponding to the target air knife during the blowing process and the preset zinc layer threshold range corresponding to the target air knife under the target production task, and for any group of candidate air knife parameters, determine the airflow change data of the target air knife at the air knife outlet based on the candidate air knife parameters, and then determine the target air knife parameters of the target air knife under the target production task based on each airflow change data and the preset dimensionless algorithm, so that the target air knife completes the galvanizing treatment of the target plate, and can accurately determine the airflow change data of the target air knife at the air knife outlet, and then determine the target air knife parameters corresponding to the target production task with the lowest probability of coating defects, thereby improving the galvanizing quality of the target plate, while enhancing practicality, it also greatly improves the galvanizing efficiency of the target plate. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 A flowchart of a method for determining a hot-dip galvanized sheet based on air knife blowing provided in an embodiment of the present application is shown;
[0029] Figure 2 A structural diagram of a target grid model in a method for determining a hot-dip galvanized sheet based on air knife blowing provided in an embodiment of the present application is shown;
[0030] Figure 3 A cross-sectional view of the structure of an air knife provided in an embodiment of the present application is shown;
[0031] Figure 4 A structural diagram of an air knife provided in an embodiment of the present application is shown;
[0032] Figure 5 A structural block diagram of a device for determining a hot-dip galvanized sheet material based on air knife blowing provided in an embodiment of the present application is shown;
[0033] Figure 6 A schematic structural diagram of an electronic device provided in an embodiment of the present application is shown.
[0034] Figure 5 and Figure 6 The corresponding relationship between the reference numerals and the names of the drawings is as follows:
[0035] 11 air knife air inlet pipeline model; 12 air knife chamber model; 13 orifice plate model; 14 first preset area; 15 knife lip model; 16 second preset area; 17 air knife knife lip outlet external space model; 100 air knife body; 101 air inlet pipeline; 102 knife body; 103 front cover plate; 104 rear cover plate; 105 upper knife lip; 106 lower knife lip; 107 orifice plate; 108 spare upper knife lip; 109 spare lower knife lip; 500 hot-dip galvanized sheet determination device based on air knife blowing; 510 first determination module; 520 second determination module; 530 third determination module; 600 electronic device; 610 processor; 620 memory; 630 bus. DETAILED DESCRIPTION
[0036] In order to better understand the technical solutions provided by the embodiments of this specification, the technical solutions of the embodiments of this specification are described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiments of this specification and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this specification, rather than limitations on the technical solutions of this specification. In the absence of conflict, the embodiments of this specification and the technical features in the embodiments can be combined with each other.
[0037] In this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or equipment. In the absence of more restrictions, the elements limited by the statement "comprise one..." do not exclude the existence of other identical elements in the process, method, article or equipment including the elements. The term "more than two" includes two or more than two situations.
[0038] First, the applicable application scenarios of the present application are introduced. The embodiments provided in the present application are applicable to the field of strip steel production technology.
[0039] At present, hot-dip galvanized steel sheets are widely used in the production of automobile sheets, household appliance sheets and various types of building sheets. In the process of hot-dip galvanizing steel sheets, the thickness of the coating is usually controlled by an air knife. Since consumers have demands for the appearance of the products, and corporate users such as automobiles and household appliances also have strict surface quality requirements for the outer covering parts of the products, the process of hot-dip galvanizing steel sheets is particularly important. In the process of hot-dip galvanizing steel sheets, surface defects of the steel sheets often exist, and the coating defects of hot-dip galvanized steel sheets are one of the common surface defects of hot-dip galvanized steel sheets.
[0040] However, in the process of detecting the airflow at the lip of the air knife, the traditional measurement method cannot directly and accurately determine the changes of the air knife during the blowing process due to the limited measurement accuracy of the equipment and limited measurement means, resulting in poor quality of galvanized steel; low practicality, which in turn affects the galvanizing efficiency.
[0041] Moreover, there is a certain degree of turbulence inside the traditional air knife cavity. When the airflow flows out from the knife lip, the pressure and velocity at each point along the width of the knife lip fluctuate to a certain extent, which ultimately causes coating defects such as uneven zinc layer quality on the hot-dip galvanized product. In addition, it is not easy to directly measure the pressure distribution and gas velocity distribution of the knife lip airflow.
[0042] Based on this, the embodiments of the present application provide a method for determining hot-dip galvanized sheet based on air knife blowing, an air knife and an electronic device. The embodiments provided by the present application can accurately determine the airflow change data of the target air knife at the air knife outlet, and then determine the target air knife parameters corresponding to the target production task with the lowest probability of coating defects, thereby improving the galvanizing quality of the target sheet. While enhancing the practicality, it also greatly improves the galvanizing efficiency of the target sheet.
[0043] See also Figure 1 , Figure 1 A flowchart of a method for determining a hot-dip galvanized sheet based on air knife blowing provided in an embodiment of the present application is shown in FIG. Figure 1 As shown, the method for determining the hot-dip galvanized sheet based on air knife blowing includes the following steps:
[0044] S101. Determine at least one set of candidate air knife parameters corresponding to the target air knife under the target production task based on the air knife parameter data set library corresponding to the target air knife to be detected during the blowing process and the preset zinc layer threshold range corresponding to the target air knife under the target production task.
[0045] In this step, the embodiment provided in the present application first simulates the blowing process of the target air knife based on the preset simulation technology, and establishes a target geometric model of the target air knife to be detected, so as to facilitate the subsequent better and real-time determination of the airflow change data at the air knife outlet of the target air knife under the target production task. After the target geometric model of the target air knife to be detected is established, the embodiment provided in the present application needs to encrypt the preset area grid for the target geometric model to determine the target grid model corresponding to the target geometric model.
[0046] It can be understood that the embodiment provided in the present application performs local grid encryption on the preset area. It is assumed that the preset area in the embodiment provided in the present application can be specifically but not limited to a rectangular area consisting of 10 cm at the orifice plate of the target air knife and the wall surface of the orifice plate reinforcement rib (i.e., the first preset area), and a rectangular area consisting of 2.5m×20cm near the lip of the target air knife (i.e., the second preset area).
[0047] The specific target grid model can be found in Figure 2 , Figure 2 The structure diagram of the target grid model in the method for determining hot-dip galvanized sheet based on air knife blowing provided in the embodiment of the present application is shown as follows: Figure 2 As shown, the target grid model includes a partial air knife air inlet pipeline model 11, a knife lip model 15, an orifice plate model 13, an air knife chamber model 12 and an air knife lip outlet external space model 17.
[0048] In the above description, it is assumed that the partial air knife air inlet pipeline model 11 in the embodiment provided in the present application is specifically but not limited to a length of > 0.2 m.
[0049] Here, it is assumed that the width of the air knife lip outlet external space model 17 in the embodiment provided in the present application is ≥2m, and the height is ≥0.4m, and the maximum skewness of the grid area of the target grid model in the embodiment provided in the present application is <0.3, the average grid inclination is <0.2, and the maximum skewness of the grids in the first preset area 14 and the second preset area 16 is <0.2, the average grid inclination is <0.15, and the maximum grid size of the grids in the first preset area 14 and the second preset area 16 is <0.5mm.
[0050] S102. For any group of candidate air knife parameters, determine the airflow change data of the target air knife at the air knife outlet based on the candidate air knife parameters.
[0051] In this step, when the target production task is determined and the target air knife to be detected is in the blowing process, the air knife parameters in the air knife parameter data group library that meet the preset zinc layer threshold range corresponding to the target air knife under the target production task are determined as at least one set of candidate air knife parameters corresponding to the target air knife under the target production task.
[0052] It can be understood that all air knife parameters within the preset zinc layer threshold range that satisfy the same zinc layer are screened. It is assumed that the embodiment provided in the present application is specifically as follows: traverse the array {a, b, c} to determine at least one set of candidate air knife parameters that satisfy the preset zinc layer threshold range value T.
[0053] Among them, a represents the air knife distance; b represents the belt speed; c represents the air knife pressure.
[0054] Here, the air knife variation range can be specific but not limited to: 5~20mm, with a minimum variation range of 0.1mm; the belt speed variation range can be specific but not limited to: 50~250m / min, with a minimum variation range of 1m / min; the air knife pressure variation range can be specific but not limited to: 10~30kPa, with a minimum variation range of 0.5kPa.
[0055] In the above, it is assumed that the embodiment provided by the present application assumes that after traversing the array {a, b, c}, there are n groups of parameters {a1, b1, c1}, {a2, b2, c2}...{an, bn, cn} that satisfy the preset zinc layer threshold range value T.
[0056] S103, based on each airflow change data and a preset dimensionless algorithm, determining target air knife parameters of the target air knife under the target production task, so that the target air knife completes the galvanizing process on the target plate.
[0057] In this step, after determining at least one group of candidate air knife parameters, the target air knife corresponding to the n groups of candidate air knife parameters {a1, b1, c1}, {a2, b2, c2}·····{an, bn, cn} is simulated, and the airflow change data corresponding to the target air knife under each group of candidate air knife parameters is determined, and then each airflow change data is dimensionally processed according to a preset dimensionless algorithm, and the candidate parameters of the target air knife with the smallest dimensionless coefficient are determined as the target air knife parameters, so that the target air knife completes the galvanizing treatment of the target plate.
[0058] It can be understood that the target air knife parameters in the embodiments provided in the present application are the optimal parameters for spraying the target plate.
[0059] The method for determining hot-dip galvanized sheet based on air knife blowing provided in the embodiment of the present application, compared with the prior art, determines at least one group of candidate air knife parameters corresponding to the target air knife under the target production task by detecting the air knife parameter data group library corresponding to the target air knife during the blowing process and the preset zinc layer threshold range corresponding to the target air knife under the target production task, and for any group of candidate air knife parameters, determines the airflow change data of the target air knife at the air knife outlet based on the candidate air knife parameters, and then determines the target air knife parameters of the target air knife under the target production task based on each airflow change data and the preset dimensionless algorithm, so that the target air knife completes the galvanizing treatment of the target sheet, and can accurately determine the airflow change data of the target air knife at the air knife outlet, and then determine the target air knife parameters corresponding to the target production task with the lowest probability of coating defects, thereby improving the galvanizing quality of the target sheet, while enhancing practicality, it also greatly improves the galvanizing efficiency of the target sheet.
[0060] In one embodiment, the airflow change data includes pressure fluctuation data and vortex intensity data, and step S102 may be specifically as follows:
[0061] For any set of candidate air knife parameters, the pressure fluctuation data and vortex intensity data of the target air knife at the air knife outlet are determined based on the candidate air knife parameters.
[0062] Among them, P is used to characterize the pressure fluctuation data under the candidate air knife parameters; I is used to characterize the eddy current intensity data under the candidate air knife parameters.
[0063] In one embodiment, step S103 includes the following sub-steps:
[0064] Sub-step 1031, performing dimensionless calculation on the pressure fluctuation data and eddy current intensity data corresponding to the target air knife under each candidate air knife parameter according to a preset dimensionless algorithm, and determining the candidate dimensionless coefficient of the target air knife under each candidate air knife parameter.
[0065] In this step, it is assumed that the formula for determining the candidate dimensionless coefficient of the target air knife under each candidate air knife parameter in the embodiment provided by the present application is specifically:
[0066]
[0067] Here, η n The candidate dimensionless coefficient used to characterize the nth candidate air knife parameter; σP n The dimensionless number used to characterize the pressure under the nth candidate air knife parameters; σI n A dimensionless number used to characterize the eddy current intensity under the nth candidate air knife parameters.
[0068] in:
[0069]
[0070] Here, σ P It is used to characterize the dimensionless number of pressure under the corresponding candidate air knife parameters; Pj is used to characterize the pressure value under the jth candidate air knife parameter; P average is used to characterize the average pressure determined under all candidate air knife parameters; m is used to characterize the number of candidate air knife parameter groups.
[0071] in:
[0072]
[0073] Here, σ I A dimensionless number used to characterize the eddy current intensity under the corresponding candidate air knife parameters; I j Used to characterize the eddy current intensity value under the jth candidate air knife parameter; I 平均 It is used to characterize the average value of the eddy current intensity determined under all candidate air knife parameters; m is used to characterize the number of candidate air knife parameter groups.
[0074] Sub-step 1032: determining target air knife parameters of the target air knife under the target production task based on each candidate dimensionless coefficient, so that the target air knife completes the galvanizing process on the target plate.
[0075] In this step, it is assumed that in the embodiment provided in the present application, the minimum value among the candidate dimensionless coefficients is determined as the target dimensionless coefficient of the target air knife in the blowing process, and then the candidate air knife parameters corresponding to the target dimensionless coefficient are determined as the target air knife parameters of the target air knife under the target production task, so that the target air knife completes the galvanizing treatment of the target plate.
[0076] Here, it is assumed that in the embodiment provided in this application, n n The corresponding minimum value is specifically: the yth group combination {ay, by, cy}, that is, the target air knife parameters {ay, by, cy} are the optimal parameter group for the coating.
[0077] The method for determining hot-dip galvanized sheet based on air knife blowing provided in the embodiment of the present application, compared with the prior art, the embodiment provided by the present application determines at least one group of candidate air knife parameters corresponding to the target air knife under the target production task by detecting the air knife parameter data group library corresponding to the target air knife during the blowing process and the preset zinc layer threshold range corresponding to the target air knife under the target production task, and for any group of candidate air knife parameters, determines the airflow change data of the target air knife at the air knife outlet based on the candidate air knife parameters, and then determines the target air knife parameters of the target air knife under the target production task based on each airflow change data and the preset dimensionless algorithm, so that the target air knife completes the galvanizing treatment of the target sheet, and can accurately determine the pressure fluctuation data and eddy current intensity data of the target air knife at the air knife outlet, and then determine the target air knife parameters corresponding to the target production task with the lowest probability of coating defects, thereby improving the uniformity of the airflow distribution at the target air knife outlet, and improving the galvanizing quality of the target sheet. While enhancing the practicality, it also greatly improves the galvanizing efficiency of the target sheet and reduces the galvanizing cost.
[0078] See also Figure 3 and Figure 4 , Figure 3 This is a cross-sectional view of the structure of an air knife provided in an embodiment of the present application. Figure 4 The present invention provides a structural diagram of an air knife provided in an embodiment of the present application, wherein the air knife comprises: an air knife body 100, wherein the air knife body 100 is composed of an air inlet pipeline 101 and an air knife chamber, wherein the air knife body 100 has a cavity structure, wherein the air inlet pipeline 101 is plugged into the outside of the air knife body 100, and the air inlet pipeline 101 passes through the air knife body 100, and the air knife chamber is communicated with the air inlet pipeline 101, and the air knife chamber is closed by a front cover plate 103, a rear cover plate 104, a knife body 102, an upper knife lip 105, and a lower knife lip 106, and an upper knife lip 105 and a lower knife lip 106 connected to the air knife body 100 are arranged on the upper and lower sides of the air knife body 100, respectively, and at least one orifice plate 107 is installed in the air knife chamber.
[0079] Here, the edges of the front cover plate 103 and the rear cover plate 104 of the air knife are both arc-shaped structures, and the bending direction of the arc of the front cover plate 103 and the rear cover plate 104 of the air knife is the same as the air intake direction of the air intake pipe 101, and the curvature range of the arc structure is 0.05m≤R≤1m. Compared with the air knife in the prior art, the air knife structure provided in the present application has undergone structural changes and optimizations. The two end faces of the ordinary air knife adopt square or rectangular cover plates, which cannot guide the airflow, thereby causing the airflow turbulence on the inlet side and the distal end of the ordinary air knife to be more serious. The front cover plate 103 and the rear cover plate 104 of the air knife in the embodiment provided in the present application are both covers with a certain curvature, and the arcs of the front and rear cover plates 104 will be adaptively adjusted according to the requirements of the target production task, and the arc structure design has an airflow guidance effect, thereby reducing the occurrence of shear airflow and collision airflow inside the air knife.
[0080] Among them, the upper blade lip 105 and the lower blade lip 106 in the embodiment provided in the present application are both detachable and replaceable parts. The upper blade lip 105 can be replaced with a spare upper blade lip 108; the lower blade lip 106 can be replaced with a spare lower blade lip 109; and when the upper blade lip 105 and the lower blade lip 106 are replaced, different types of spare parts can be used to adjust the internal air knife chamber shape and the length of the outlet parallel section.
[0081] Working principle: During the blowing process of the air knife in the embodiment provided in the present application, the gas enters the air knife chamber through the air inlet pipe 101, and the gas flows through the orifice plate 107, the upper knife lip 105 and the lower knife lip 106 and is then blown onto the strip steel (target plate).
[0082] Among them, the number of orifice plates 107 in the embodiment provided in the present application can be adaptively adjusted according to different application scenarios and production requirements. It is assumed that the number of layers of orifice plates 107 in the embodiment provided in the present application is greater than or equal to 2 layers, and the design principles of the orifice plates 107 in the embodiment provided in the present application must meet the following requirements: the lateral spacing of the circular holes must be smaller than the longitudinal spacing, and the diameter of the circular holes is greater than 1 mm, the diameter of the circular holes is less than or equal to 1 / 50 of the spacing between the two orifice plates 107 or the distance from the last orifice plate 107 to the air knife outlet, and the lateral spacing of the circular holes is 0.5 to 3 mm.
[0083] In the above, the orifice plate 107 in the embodiment provided in the present application is fixedly installed inside the air knife chamber with a pre-machined groove to prevent heat.
[0084] See also Figure 5 , Figure 5 The structural block diagram of a device for determining hot-dip galvanized sheet based on air knife blowing provided in an embodiment of the present application is as follows: Figure 5 As shown, the hot-dip galvanized sheet determination device 500 based on air knife blowing comprises:
[0085] The first determination module 510 is used to determine at least one set of candidate air knife parameters corresponding to the target air knife under the target production task based on the air knife parameter data group library corresponding to the target air knife to be detected during the blowing process and the preset zinc layer threshold range corresponding to the target air knife under the target production task.
[0086] The second determination module 520 is used to determine the airflow change data of the target air knife at the air knife outlet based on the candidate air knife parameters for any set of candidate air knife parameters.
[0087] The third determination module 530 is used to determine the target air knife parameters of the target air knife under the target production task based on various airflow change data and a preset dimensionless algorithm, so that the target air knife completes the galvanizing process on the target plate.
[0088] In one embodiment, the first determining module 510 is specifically configured to:
[0089] When the target air knife to be detected is in the blowing process, the air knife parameters in the air knife parameter data group library that meet the preset zinc layer threshold range corresponding to the target air knife under the target production task are determined as at least one set of candidate air knife parameters corresponding to the target air knife under the target production task.
[0090] In one embodiment, the airflow change data includes pressure fluctuation data and vortex intensity data, and the second determination module 520 is specifically configured to:
[0091] For any set of candidate air knife parameters, the pressure fluctuation data and vortex intensity data of the target air knife at the air knife outlet are determined based on the candidate air knife parameters.
[0092] In one embodiment, the third determination module 530 is specifically configured to:
[0093] The pressure fluctuation data and eddy current intensity data corresponding to the target air knife under each candidate air knife parameter are dimensionally calculated according to a preset dimensionless algorithm to determine the candidate dimensionless coefficients of the target air knife under each candidate air knife parameter.
[0094] Based on each candidate dimensionless coefficient, the target air knife parameters of the target air knife under the target production task are determined so that the target air knife can complete the galvanizing process on the target plate.
[0095] In one embodiment, based on each candidate dimensionless coefficient, determining a target air knife parameter of a target air knife under a target production task so that the target air knife completes the galvanizing process on a target plate includes:
[0096] The minimum value among the candidate dimensionless coefficients is determined as the target dimensionless coefficient of the target air knife during the blowing process.
[0097] The candidate air knife parameters corresponding to the target dimensionless coefficients are determined as the target air knife parameters of the target air knife under the target production task, so that the target air knife completes the galvanizing process on the target plate.
[0098] The hot-dip galvanized plate determination device 500 based on air knife blowing provided in the embodiment of the present application, compared with the prior art, the embodiment provided by the present application determines at least one group of candidate air knife parameters corresponding to the target air knife under the target production task by detecting the air knife parameter data group library corresponding to the target air knife in the blowing process and the preset zinc layer threshold range corresponding to the target air knife under the target production task, and for any group of candidate air knife parameters, determines the airflow change data of the target air knife at the air knife outlet based on the candidate air knife parameters, and then determines the target air knife parameters of the target air knife under the target production task based on each airflow change data and the preset dimensionless algorithm, so that the target air knife completes the galvanizing treatment of the target plate, and can accurately determine the pressure fluctuation data and eddy current intensity data of the target air knife at the air knife outlet, and then determine the target air knife parameters corresponding to the target production task with the lowest probability of coating defects, thereby improving the uniformity of the airflow distribution at the target air knife outlet, and improving the galvanizing quality of the target plate. While enhancing the practicality, it also greatly improves the galvanizing efficiency of the target plate and reduces the galvanizing cost.
[0099] See also Figure 6 , Figure 6 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application is shown in FIG. Figure 6 As shown, the electronic device 600 includes a processor 610 , a memory 620 , and a bus 630 .
[0100] The memory 620 stores machine-readable instructions executable by the processor 610. When the electronic device 600 is running, the processor 610 communicates with the memory 620 via the bus 630. When the machine-readable instructions are executed by the processor 610, the above-mentioned Figure 1 The steps of the method for determining the hot-dip galvanized sheet based on air knife blowing in the method embodiment shown in the figure, and the specific implementation method can be referred to the method embodiment, which will not be repeated here.
[0101] The present application also provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the computer program can execute the above-mentioned Figure 1 The steps of the method for determining the hot-dip galvanized sheet based on air knife blowing in the method embodiment shown in the figure, and the specific implementation method can be referred to the method embodiment, which will not be repeated here.
[0102] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.
[0103] It should be noted that in the above embodiments, the description of each embodiment has its own emphasis, and for parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.
[0104] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-readable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that contain computer-readable program code.
[0105] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, 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, an embedded computer, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.
[0106] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.
[0107] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process in the computer or other programmable device. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.
[0108] An embodiment of the present application also provides a computer program product, which includes computer software instructions. When the computer software instructions are executed on a processing device, the processing device executes the process of a method for determining a hot-dip galvanized sheet based on air knife blowing.
[0109] The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the process or function according to the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network or other programmable devices. The computer instruction can be stored in a computer-readable storage medium, or transmitted from a computer-readable storage medium to another computer-readable storage medium. For example, the computer instruction can be transmitted from a website site, a computer, a server or a data center by wired (for example, coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (for example, infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that a computer can store or a data storage device such as a server, a data center, etc. that includes one or more available media integration. Available media can be magnetic media, (for example, floppy disk, hard disk, tape), optical media (for example, DVD), or semiconductor media (for example, solid-state disk (solidstate disk, SSD)) and the like.
[0110] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.
[0111] In the several embodiments provided in the present application, it should be understood that the disclosed devices, apparatuses and methods can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.
[0112] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
[0113] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.
[0114] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk and other media that can store program codes.
[0115] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.
[0116] Although the preferred embodiments of this specification have been described, those skilled in the art may make additional 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 this specification.
[0117] Obviously, those skilled in the art can make various changes and modifications to this specification without departing from the spirit and scope of this specification. Thus, if these modifications and variations of this specification fall within the scope of the claims of this specification and their equivalents, this specification is also intended to include these modifications and variations.
Claims
1. A method for determining hot-dip galvanized sheet based on air knife blowing, characterized in that: The method for determining the hot-dip galvanized sheet based on air knife spraying comprises: Based on a database of air knife parameter data corresponding to a target air knife to be detected during a blowing process and a preset zinc layer threshold range corresponding to the target air knife under a target production task, determining at least one set of candidate air knife parameters corresponding to the target air knife under a target production task; For any set of the candidate air knife parameters, determining the airflow change data of the target air knife at the air knife outlet based on the candidate air knife parameters; Based on each of the airflow change data and a preset dimensionless algorithm, target air knife parameters of the target air knife under the target production task are determined so that the target air knife completes the galvanizing process on the target plate.
2. The method for determining hot-dip galvanized sheet based on air knife spraying according to claim 1, characterized in that: The method of determining at least one set of candidate air knife parameters corresponding to the target air knife under the target production task based on the air knife parameter data set library corresponding to the target air knife to be detected during the blowing process and the preset zinc layer threshold range corresponding to the target air knife under the target production task comprises: When the target air knife to be detected is in the blowing process, the air knife parameters in the air knife parameter data group library that meet the preset zinc layer threshold range corresponding to the target air knife under the target production task are determined as at least one set of candidate air knife parameters corresponding to the target air knife under the target production task.
3. The method for determining hot-dip galvanized sheet material based on air knife spraying according to claim 1, characterized in that: The airflow change data includes pressure fluctuation data and eddy current intensity data. For any set of the candidate air knife parameters, determining the airflow change data of the target air knife at the air knife outlet based on the candidate air knife parameters includes: For any group of the candidate air knife parameters, the pressure fluctuation data and the vortex intensity data of the target air knife at the air knife outlet are determined based on the candidate air knife parameters.
4. The method for determining hot-dip galvanized sheet material based on air knife spraying according to claim 3 is characterized in that: The method of determining the target air knife parameters of the target air knife under the target production task based on each of the air flow change data and a preset dimensionless algorithm, so that the target air knife completes the galvanizing process on the target plate, includes: Performing dimensionless calculation on the pressure fluctuation data and eddy current intensity data corresponding to the target air knife under each candidate air knife parameter according to a preset dimensionless algorithm, and determining the candidate dimensionless coefficient of the target air knife under each candidate air knife parameter; Based on each of the candidate dimensionless coefficients, target air knife parameters of the target air knife under the target production task are determined so that the target air knife completes the galvanizing process on the target plate.
5. The method for determining hot-dip galvanized sheet material based on air knife spraying according to claim 4, characterized in that: The step of determining the target air knife parameters of the target air knife under the target production task based on each of the candidate dimensionless coefficients so that the target air knife completes the galvanizing process on the target plate includes: The minimum value among the candidate dimensionless coefficients is determined as the target dimensionless coefficient of the target air knife during the blowing process; The candidate air knife parameters corresponding to the target dimensionless coefficients are determined as the target air knife parameters of the target air knife under the target production task, so that the target air knife completes the galvanizing process on the target plate.
6. An air knife, characterized in that: Applied to the hot-dip galvanized sheet determination method based on air knife blowing as described in any one of claims 1-5, the air knife comprises: an air knife body, the air knife body consists of an air inlet pipeline and an air knife chamber, the air knife body is a cavity structure, the air inlet pipeline is plugged into the outside of the air knife body, and the air inlet pipeline runs through the air knife body, the air knife chamber is communicated with the air inlet pipeline, the air knife chamber is closed by a front cover plate, a rear cover plate, a knife body, an upper knife lip and a lower knife lip, and the upper and lower sides of the air knife body are respectively arranged with the upper and lower knife lips connected to the air knife body, and at least one orifice plate is installed in the air knife chamber.
7. The air knife according to claim 6, characterized in that The edges of the front cover plate and the rear cover plate of the air knife are both arc-shaped structures, and the curvature range of the arc-shaped structure is 0.05m≤R≤1m.
8. A device for determining hot-dip galvanized sheet based on air knife blowing, characterized in that: The hot-dip galvanized sheet determination device based on air knife blowing comprises: A first determination module is used to determine at least one set of candidate air knife parameters corresponding to the target air knife under the target production task based on an air knife parameter data group library corresponding to the target air knife to be detected during the blowing process and a preset zinc layer threshold range corresponding to the target air knife under the target production task; A second determination module is used to determine the airflow change data of the target air knife at the air knife outlet based on the candidate air knife parameters for any group of the candidate air knife parameters; The third determination module is used to determine the target air knife parameters of the target air knife under the target production task based on each of the airflow change data and a preset dimensionless algorithm, so that the target air knife completes the galvanizing process on the target plate.
9. An electronic device, characterized in that: include: A processor, a memory and a bus, wherein the memory stores machine-readable instructions executable by the processor, and when the electronic device is running, the processor and the memory communicate via the bus, and the machine-readable instructions are executed by the processor to execute the steps of the method for determining a hot-dip galvanized sheet based on air knife blowing as described in any one of claims 1 to 5.
10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the method for determining a hot-dip galvanized sheet based on air knife blowing as described in any one of claims 1 to 5 are executed.