Data alignment method and system, and device suitable for strip elongation of hot galvanizing unit

Abstract

This invention provides a data alignment method for strip elongation in hot-dip galvanizing units, comprising the following steps: Step S1: Divide the galvanizing line into multiple zones according to the characteristics of the process section; Step S2: Calculate the step size of each sampling cycle for each zone based on the motor speed, and bind the data to the strip length according to a set data granularity; Step S3: After the steel coil production is completed, track the data of the strip length passing through each zone and the finished product length; Step S4: Calculate the strip elongation rate in each tracked zone based on the tracked data; Step S5: Based on the elongation rate of each tracked zone, collect data using an interpolation algorithm and align it to the finished coil. This invention achieves precise spatiotemporal conversion of strip data through an elongation rate algorithm, providing a complete, accurate, and reliable data foundation for subsequent data analysis and mining.

Description

Technical Field

[0001] This invention relates to the field of steel rolling mill production technology, specifically to a data alignment method, system, and equipment suitable for the strip extension of hot-dip galvanizing units. Background Technology

[0002] Currently, in the cold rolling zone, strip steel experiences significant elongation as it passes through the rolling mill, leveling mill, and furnace. Traditional data collection methods allocate process data for this timeframe to the strip steel itself. However, extracting data from preceding processes based on the finished strip length after the strip has passed through elongated sections results in data offset, making it impossible to accurately pinpoint data for each meter of strip steel during production and hindering precise traceability of strip steel quality.

[0003] A search revealed that patent document CN106636605A discloses a novel reduction annealing furnace for cold-rolled strip steel, comprising a furnace body, a vacuum pump, an upper extension assembly, a lower extension assembly, an ammonia tank, a movable door, a heating assembly, and a cooling assembly. The upper end of the movable door is hinged to one side of the furnace body. The upper extension assembly is horizontally arranged in the upper part of the furnace body, and the lower extension assembly is horizontally arranged in the lower part of the furnace body. The vacuum pump is located at the upper end of the furnace body. The ammonia tank is connected to the other side of the furnace body via a hose. The heating assembly is movably arranged horizontally within the furnace body, and the cooling assembly is movably connected to one side of the movable door. This prior art employs a combination of cold-rolled strip steel extension reduction annealing and electromagnetic heating. Although extension is involved, it focuses on the heating technology of the extension path and does not solve the problem of extension length data offset.

[0004] Patent document CN105849289A discloses a continuous annealing apparatus and method for strip steel, which can first homogenize or control the microstructure to the desired microstructure, and then perform a reheating treatment to stabilize or control the microstructure to the desired morphology. By performing heat treatment through a continuous annealing apparatus, even ultra-low carbon steel exhibits excellent stamping performance and ductility in cold-rolled steel sheets and galvanized steel sheets. However, this prior art still does not solve the problem of elongation data deviation affecting elongation rate.

[0005] Therefore, there is an urgent need to develop and design a method and system that can solve the problem of data matching technology after strip steel is stretched. Summary of the Invention

[0006] To address the shortcomings of existing technologies, the purpose of this invention is to provide a data alignment method, system, and equipment suitable for the elongation of strip steel in hot-dip galvanizing units. By employing an elongation rate algorithm, precise spatiotemporal conversion of strip steel data is achieved, providing a complete, accurate, and reliable data foundation for subsequent data analysis and mining.

[0007] A data alignment method for strip extension in hot-dip galvanizing units, provided by the present invention, includes the following steps:

[0008] Step S1: Divide the galvanizing line into multiple zones according to the characteristics of the process section;

[0009] Step S2: Calculate the step size of each sampling cycle for multiple zones based on the motor speed, and bind the data to the strip length according to the set data granularity;

[0010] Step S3: After the steel coil production is completed, track the data of the strip length passing through each section and the finished product length;

[0011] Step S4: Calculate the elongation of the strip in each tracking zone based on the tracked data;

[0012] Step S5: Based on the extension rate of each tracking partition, data is collected and aligned to the finished volume using an interpolation algorithm.

[0013] Preferably, in step S1, the galvanizing line is divided into multiple zones according to the motor control range of the process section and the installation position of the acquisition sensors, and the number of zones is proportional to the number of acquisition sensors.

[0014] Preferably, in step S2, the step length is calculated based on the motor, and the calculation formula is as follows:

[0015] ΔL=(P1-P0) / C*(π*D)*i

[0016] Where ΔL is the strip forward distance in one scanning cycle; P1 is the current pulse number; P0 is the previous pulse number; C is the total number of pulses for one revolution of the motor; D is the diameter of the S roller; and i is the gear transmission ratio of the S roller.

[0017] Preferably, in step S2, the data granularity is determined by the data sampling density along the strip length, where the strip length is the cumulative length of multiple cycle steps.

[0018] Preferably, the partition length in step S3 is the length of a section where one piece of equipment in the strip steel processing production line is located.

[0019] Preferably, in step S3, the strip length is recorded based on the cumulative circumference of the strip as it rotates on the motor roller.

[0020] Preferably, in step S4, the strip steel processing production involves furnace heating, rolling mill, and leveling machine all stretching the strip steel. The length from the inlet to the outlet may extend to 1050 meters, and the extension rate of the outlet length relative to the inlet length is 1.05.

[0021] Preferably, the interpolation algorithm in step S5 is linear interpolation. Let the function y = f(x) have values ​​y0 and y1 at two points x0 and x1, respectively. Linear interpolation:

[0022] According to the present invention, a data alignment system for strip extension in hot-dip galvanizing units is provided, which performs data alignment using the above-described data alignment method for strip extension in hot-dip galvanizing units, including:

[0023] Module M1: Divide the galvanizing line into multiple zones according to the characteristics of each process section;

[0024] Module M2: Calculates the step size of each unit cycle for multiple zones based on motor speed, and binds the data to the strip length according to the set data granularity;

[0025] Module M3: Tracks the completion of steel coil production, providing data on the length of the strip through each section and the finished product length;

[0026] Module M4: Calculates the elongation of the strip in each tracking segment based on the tracking data;

[0027] Module M5: Based on the extension rate of each tracking segment, data is collected using an interpolation algorithm and aligned to the finished roll.

[0028] According to the present invention, a data alignment device for the extension of strip steel in a hot-dip galvanizing unit is provided, comprising the above-mentioned data alignment system for the extension of strip steel in a hot-dip galvanizing unit.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] 1. This invention reduces the deviation of the data at the length position of the steel coil to meters, which can accurately locate the quality at the length position of the steel coil, precisely guide the production of the next process, and ensure the quality of the finished product.

[0031] 2. By discovering defects in the length of the strip in the upstream unit, this invention can guide the intelligent scrap cutting of the downstream unit, freeing up the current manual labor for identification and improving the production speed of the unit.

[0032] 3. This invention enables differentiated sales and improves corporate profits through refined quality management of products.

[0033] 4. This invention significantly improves the accuracy of strip steel data per meter while considering elongation, thereby enabling precise location of defects along the length of the steel coil. Through technical means, defect information from the previous production process is accurately tracked and used to guide the next process, precisely locating defects and cutting off waste. This improves the production efficiency of the next process. Attached Figure Description

[0034] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0035] Figure 1 This is a flowchart of the data alignment method applicable to the strip extension of hot-dip galvanizing units in this invention;

[0036] Figure 2 This is a schematic diagram of a data alignment device applicable to the strip extension of a hot-dip galvanizing unit in this invention;

[0037] Figure 3 This is a schematic diagram illustrating the segmented tracking data of the galvanizing line assembly in this invention;

[0038] Figure 4 These are two diagrams illustrating the segmented tracking data of the galvanizing line in this invention. Detailed Implementation

[0039] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0040] This invention provides a data alignment method for the extension of strip steel in hot-dip galvanizing units, comprising the following steps:

[0041] Step S1: Divide the galvanizing line into multiple zones according to the characteristics of the process section; divide the galvanizing line into multiple zones according to the motor control range of the process section and the installation position of the acquisition sensors, with the number of zones being proportional to the number of acquisition sensors.

[0042] Step S2: Calculate the step size for each sampling period of multiple zones based on the motor speed, and bind the data to the strip length according to the set data granularity; the step size is calculated based on the motor speed in step S2, and the calculation formula is:

[0043] ΔL=(P1-P0) / C*(π*D)*i

[0044] Where ΔL is the strip forward distance in one scanning cycle; P1 is the current pulse number; P0 is the previous pulse number; C is the total number of pulses for one revolution of the motor; D is the diameter of the S roller; and i is the gear transmission ratio of the S roller.

[0045] The data granularity is determined by the data sampling density along the strip length, which is the cumulative length of multiple cycle steps.

[0046] Step S3: After the steel coil production is completed, track the data of the strip length passing through each section and the finished product length; where the section length is the length of a section of equipment in the strip processing production line, and the strip length is recorded according to the cumulative circumference of the strip as it rotates on the motor roller.

[0047] Step S4: Calculate the elongation rate of the strip in each tracking zone based on the tracked data; In step S4, the strip processing production will stretch the strip due to furnace heating, rolling mill and leveling machine. The strip may extend from 1000 meters at the inlet to 1050 meters at the outlet. The elongation rate of the outlet length relative to the inlet length is 1.05.

[0048] Step S5: Based on the extension rate of each tracking partition, data is collected and aligned to the finished volume using an interpolation algorithm. The interpolation algorithm is linear interpolation. Let the function y = f(x) have values ​​y0 and y1 at two points x0 and x1, respectively. Linear interpolation:

[0049] This invention also provides a data alignment system suitable for the strip extension of hot-dip galvanizing units, which performs data alignment using the above-mentioned data alignment method for the strip extension of hot-dip galvanizing units, including:

[0050] Module M1: Divide the galvanizing line into multiple zones according to the characteristics of each process section;

[0051] Module M2: Calculates the step size of each unit cycle for multiple zones based on motor speed, and binds the data to the strip length according to the set data granularity;

[0052] Module M3: Tracks the completion of steel coil production, providing data on the length of the strip through each section and the finished product length;

[0053] Module M4: Calculates the elongation of the strip in each tracking segment based on the tracking data;

[0054] Module M5: Based on the extension rate of each tracking segment, data is collected using an interpolation algorithm and aligned to the finished roll.

[0055] The present invention also provides a data alignment device suitable for the extension of strip steel in hot-dip galvanizing units, including the above-mentioned data alignment system suitable for the extension of strip steel in hot-dip galvanizing units.

[0056] Those skilled in the art will understand that, besides implementing the system and its various devices, modules, and units provided by this invention in the form of purely computer-readable program code, the same functions can be achieved entirely through logical programming of the method steps, making the system and its various devices, modules, and units of this invention function in the form of logic gates, switches, application-specific integrated circuits, programmable logic controllers, and embedded microcontrollers. Therefore, the system and its various devices, modules, and units provided by this invention can be considered as a hardware component, and the devices, modules, and units included therein for implementing various functions can also be considered as structures within the hardware component; alternatively, the devices, modules, and units for implementing various functions can be considered as both software modules implementing the method and structures within the hardware component.

[0057] Specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A data alignment method for the extension of strip steel in hot-dip galvanizing units, characterized in that, Includes the following steps: Step S1: Divide the galvanizing line into multiple zones according to the characteristics of the process section; Step S2: Calculate the step size of each sampling cycle for multiple zones based on the motor speed, and bind the data to the strip length according to the set data granularity; Step S3: After the steel coil production is completed, track the data of the strip length passing through each section and the finished product length; Step S4: Calculate the elongation of the strip in each tracking zone based on the tracked data; Step S5: Based on the extension rate of each tracking partition, data is collected using an interpolation algorithm and aligned to the finished volume; In step S1, the galvanizing line is divided into multiple zones according to the motor control range of the process section and the installation position of the acquisition sensors. The number of zones is proportional to the number of acquisition sensors. The interpolation algorithm in step S5 is linear interpolation. Let the function y = f(x) have values ​​y0 and y1 at two points x0 and x1, respectively. Linear interpolation: .

2. The data alignment method for strip extension in hot-dip galvanizing units according to claim 1, characterized in that, In step S2, the step length is calculated based on the motor. The calculation formula is as follows: ΔL = (P1-P0) / C*(π*D)*i Where ΔL is the strip forward distance in one scanning cycle; P1 is the current pulse number; P0 is the previous pulse number; C is the total number of pulses for one revolution of the motor; D is the diameter of the S roller; and i is the gear transmission ratio of the S roller.

3. The data alignment method for strip extension in hot-dip galvanizing units according to claim 1, characterized in that, In step S2, the data granularity is determined by the data sampling density along the strip length, which is the cumulative length of multiple cycle steps.

4. The data alignment method for strip extension in hot-dip galvanizing units according to claim 1, characterized in that, The partition length mentioned in step S3 is the length of a section where one piece of equipment in the strip steel processing production line is located.

5. The data alignment method for strip extension in hot-dip galvanizing units according to claim 1, characterized in that, In step S3, tracking the strip length involves recording the strip length based on the cumulative circumference of the strip as it rotates on the motor roller.

6. The data alignment method for strip extension in hot-dip galvanizing units according to claim 1, characterized in that, In step S4, the strip steel is stretched by furnace heating, rolling mill and leveling machine. The ratio of the strip steel exit length to the entry length is the elongation.

7. A data alignment system suitable for the extension of strip steel in hot-dip galvanizing units, characterized in that, Data alignment using the data alignment method for strip extension of hot-dip galvanizing units as described in any one of claims 1 to 6 includes: Module M1: Divide the galvanizing line into multiple zones according to the characteristics of each process section; Module M2: Calculates the step size of each unit cycle for multiple zones based on motor speed, and binds the data to the strip length according to the set data granularity; Module M3: Tracks the completion of steel coil production, providing data on the length of the strip through each section and the finished product length; Module M4: Calculates the elongation of the strip in each tracking segment based on the tracking data; Module M5: Based on the extension rate of each tracking segment, data is collected using an interpolation algorithm and aligned to the finished roll.

8. A data alignment device suitable for the extension of strip steel in a hot-dip galvanizing unit, characterized in that, Includes the data alignment system for strip extension of hot-dip galvanizing units as described in claim 7.

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