CN108453228B - Intelligent data acquisition system for continuous casting of wide slab - Google Patents
Intelligent data acquisition system for continuous casting of wide slab Download PDFInfo
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- CN108453228B CN108453228B CN201710096419.5A CN201710096419A CN108453228B CN 108453228 B CN108453228 B CN 108453228B CN 201710096419 A CN201710096419 A CN 201710096419A CN 108453228 B CN108453228 B CN 108453228B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/16—Controlling or regulating processes or operations
Abstract
The invention relates to an intelligent data acquisition system for continuous casting of a wide slab, which comprises the following steps: using LabVIEW software to logically program the parameters of the required equipment, manufacturing a human-computer interaction panel, simulating the data required by the process and the equipment, and setting an alarm value or displaying a normal state; data address matching is carried out with a control system used at present, actual equipment process parameter data is introduced, and after testing functional parameters are normal, programs are continuously operated and data are transmitted and recorded; generating a fixed executable file, attaching an audible and visual alarm, intelligently acquiring real-time process data, and storing the real-time process data in a designated database; the method is applied to more than two casting machines, the execution application program is installed, different equipment parameters are debugged, and finally the casting machine is shaped and put into normal use. The invention applies the LabVIEW software to the continuous casting equipment for the first time, provides a new way for the function development of the casting machine in the future, can develop more and more intelligent programs according to the actual needs of the field, and has a profound development prospect.
Description
Technical Field
The invention relates to a data acquisition system, in particular to an intelligent data acquisition system for continuous casting of wide slabs.
Background
The virtual instrument is a data acquisition system organized according to instrument requirements, mainly comprises computer data acquisition and digital signal processing, and the widely used computer language is LabVIEW software of the American NI company.
LabVIEW is used for national defense, aerospace and large-scale industrial data acquisition and automatic control, a logic program in actual production can be quickly compiled through a graphical G language development environment, the LabVIEW is applied to a wide slab continuous casting intelligent data acquisition system, reference data is provided for production equipment and processes, new functions of a continuous casting primary acquisition system are added, various real-time early warning and historical query data can be provided in a diversified and intelligent manner, and the LabVIEW has a farther development prospect and is applied to a continuous casting area.
The wide slab continuous casting machine is mainly used for producing high-grade automobile plates, pipeline steel, container plates, ship plates, cold-rolled high-strength steel and other high-quality products, increases the product varieties and improves the quality, and is beneficial to occupying market share in similar products and improving the popularity of enterprises.
The wide slab continuous casting automatic control system is a PLC system and a primary system, is put into use after the functions are completed, but with the continuous improvement of production and product quality requirements, equipment parameters need to be selectively processed so as to provide a reference basis and a real-time alarm function for process and equipment technicians, and further, the equipment state is stabilized by adjusting each working unit of the casting machine to ensure the smooth production and improve the product quality.
The original data information of the data acquisition part only can meet the requirement of production parameter display, can not provide condition judgment for operators, and can be more accurately controlled after parameter optimization to selectively modify equipment parameters to meet production requirements.
Disclosure of Invention
Aiming at the defects of single control parameter and the like of a wide slab continuous casting system in the prior art, the invention aims to provide an intelligent data acquisition system for wide slab continuous casting, which carries out fault diagnosis, real-time monitoring system, threshold value alarm and intelligent data acquisition, memorandum and analysis on-line equipment.
In order to solve the technical problems, the invention adopts the technical scheme that:
the invention relates to an intelligent data acquisition system for continuous casting of a wide slab, which comprises the following steps:
using LabVIEW software to logically program the parameters of the required equipment, manufacturing a human-computer interaction panel, simulating the data required by the process and the equipment, and setting an alarm value or displaying a normal state;
data address matching is carried out with a control system used at present, actual equipment process parameter data is introduced, and after testing functional parameters are normal, programs are continuously operated and data are transmitted and recorded;
generating a fixed executable file, beautifying a design operation picture or monitoring a man-machine picture, attaching an audible and visual alarm, intelligently acquiring real-time process data, and storing the real-time process data into a specified database for subsequent query and comparison work;
the method has the advantages that the program loading amount is enlarged, the method is applied to more than two casting machines, the application program is installed and executed, different equipment parameters are debugged, and finally the method is shaped and put into normal use.
The man-machine interaction panel comprises a front panel of a wide slab continuous casting big data acquisition and analysis system vi and a program block diagram, wherein the front panel of the system comprises a crystallizer width adjustment alarm, a fan-shaped section state monitoring module, a crystallizer and fan-shaped section steel excess amount, a daily casting machine inspection condition and an unplanned heat inquiry display sub-module, each sub-module independently executes a corresponding function to realize man-machine interaction, and a button control is designed on an interface so as to call or record data in real time.
The crystallizer width-adjusting alarm submodule comprises four width-adjusting motors of a crystallizer of a continuous casting machine, a width-adjusting data curve, an alarm threshold value and a width-adjusting motor torque historical data query window of an upper left motor, a lower left motor, an upper right motor and a lower right motor, the width-adjusting motors are subjected to empty machine diagnosis, the motor states are judged predictably, the width-adjusting alarm function is achieved on line, and serious breakout production accidents caused by width-adjusting faults are prevented.
The fan-shaped section state monitoring sub-module comprises: a comparison chart of pressure deviation of the left side and the right side of the hydraulic cylinder at the inlet and the outlet of the fan-shaped section, a drawing roller torque chart and a low drawing speed statistical data window.
The crystallizer and fan-shaped section steel passing gauge module comprises: the method comprises the steps of initial steel excess of the wide side of the crystallizer, initial steel excess of the narrow side of the crystallizer, steel excess data display of the wide side of the crystallizer, overrun alarm display, replacement zero clearing buttons, replacement equipment number display, replacement and historical query data record searching for the steel excess through data writing.
The fan-shaped section state monitoring sub-module is also provided with a casting machine low pulling speed statistical data table which is used for counting the time consumed by the casting machine pulling speed at a low gear in unit time, and a specified threshold value is popped in a front panel program to alarm so as to prompt key parts for overhauling or maintenance.
The torque value alarm of each casting machine fan-shaped section drawing roller is screened in real time and in an imaging mode, and the torque value of the casting machine fan-shaped section drawing roller can be displayed in a notebook mode.
The method comprises the steps of setting an upper limit value on a man-machine interaction panel according to the excessive steel amount statistics and equipment replacement conditions of a casting machine crystallizer and each fan-shaped section, collecting excessive steel amount data, sending out a threshold value alarm, and periodically, regularly and quantitatively replacing equipment.
The invention has the following beneficial effects and advantages:
1. the invention applies the LabVIEW software to the continuous casting equipment for the first time, provides a new way for the function development of the casting machine in the future, can develop more and more intelligent programs according to the actual needs of the field and has a profound development prospect;
2. the invention can diagnose the fault of the air-free machine and the on-line state, provide the alarm of real-time monitoring and provide the analyzable database, and has better reference significance for summarizing equipment and product quality;
3. in the aspect of controlling the product quality in continuous casting, the key point is to ensure the stable state of continuous casting equipment, and then the product quality can be improved, and the intelligent system is established to improve the precision and the function of casting machine equipment, help to produce qualified and high-quality plates, reduce the product defect rate and the like.
Drawings
FIG. 1 is a diagram of a panel for human-computer interaction in the method of the present invention;
FIG. 2 is a diagram of a monitoring panel for monitoring the status of a sector segment of a human-computer interaction panel according to the present invention;
FIG. 3 is a diagram of a crystallizer and a fan-shaped section steel excess panel in the man-machine interaction panel according to the present invention;
FIG. 4 is a block diagram of a crystallizer width modulation motor alarm process in the method of the present invention;
FIG. 5 is a block diagram of a low pull rate statistical process for a casting machine according to the method of the present invention;
FIG. 6 is a graph of statistical test data for low casting speed for a casting machine in accordance with the present invention;
FIG. 7 is a data sheet of torque values for a segment pulling roll of a casting machine in accordance with the method of the present invention;
FIG. 8 is a graph of the crystallizer of the casting machine, the statistics of the excess steel amount of each sector, and the equipment change in the method of the present invention.
Detailed Description
The invention relates to an intelligent data acquisition system for continuous casting of a wide slab, which comprises the following steps:
using LabVIEW software to logically simulate and program the required equipment parameters, manufacturing a human-computer interaction panel, simulating the data required by the process and the equipment, and setting an alarm value or displaying a normal state;
address matching is carried out on the system and a currently used control system (a Siemens PLC control system in the embodiment), actual equipment process parameter data are introduced, and after functional parameters are tested to be normal, programs are continuously operated, and data are transmitted and recorded;
generating a fixed executable file, beautifying operation or monitoring man-machine pictures, attaching audible and visual alarms, intelligently acquiring real-time process data, and storing the real-time process data into a specified database for subsequent query and comparison work;
expanding the program loading amount, namely expanding the online application program on the wide slab casting machine, applying the wide slab casting machine to more than two casting machines, installing and executing the application program, debugging different equipment parameters, and finally shaping and putting the wide slab casting machine into normal use.
As shown in FIG. 1, in the invention, a human-computer interaction panel comprises a front panel of a wide slab continuous casting big data acquisition and analysis system vi and a program block diagram, wherein the front panel of the system comprises a crystallizer width adjustment alarm, a fan-shaped section state monitoring module, crystallizer and fan-shaped section steel passing amount, daily casting machine inspection conditions and an unplanned heat query display sub-module, each sub-module independently executes corresponding functions to realize human-computer interaction, and a button control is designed on an interface so as to call or record data in real time.
The crystallizer width-adjusting alarm submodule comprises four width-adjusting motors of a crystallizer of a continuous casting machine, and width-adjusting data curves, alarm thresholds and a width-adjusting motor torque historical data query window of an upper left motor, a lower left motor, an upper right motor and a lower right motor can not only diagnose the empty machine of the width-adjusting motor and judge the state of the motor predictably, but also realize the function of online width-adjusting alarm and prevent serious breakout production accidents caused by width-adjusting faults.
As shown in fig. 2, the segment status monitoring sub-module includes: a comparison chart of pressure deviation of the left side and the right side of the hydraulic cylinder at the inlet and the outlet of the fan-shaped section, a drawing roller torque chart and a low drawing speed statistical data window.
As shown in fig. 3, the segment status monitoring sub-module includes: the crystallizer and fan-shaped section steel passing gauge module comprises: the method comprises the steps of initial steel passing amount of a wide side of a crystallizer, initial steel passing amount of a narrow side of the crystallizer, initial steel passing amount of each section (0-9 sections in the embodiment), steel passing amount data display of the wide side of the crystallizer, overrun alarm display, replacement zero clearing button, replacement equipment number display, replacement and historical query data record searching for steel passing amount through data writing. The fan-shaped section state monitoring sub-module is also provided with a casting machine low pulling speed statistical data table which is used for counting the time consumed by the casting machine pulling speed at a low gear in unit time, and a specified threshold value is popped in a front panel program to alarm so as to prompt key parts for overhauling or maintenance.
The torque value alarm of each casting machine fan-shaped section drawing roller is screened in real time and in an imaging mode, and the torque value of the casting machine fan-shaped section drawing roller can be displayed in a notebook mode. The method comprises the steps of setting an upper limit value on a man-machine interaction panel according to the excessive steel amount statistics and equipment replacement conditions of a casting machine crystallizer and each fan-shaped section, collecting excessive steel amount data, sending out a threshold value alarm, and periodically, regularly and quantitatively replacing equipment.
As shown in fig. 4, it is a block diagram of the alarm procedure of the crystallizer width-adjusting motor in the method of the present invention;
FIG. 5 is a block diagram of a low pull rate statistical process for a casting machine according to the method of the present invention;
as shown in FIG. 6, the present invention is a statistical test of the low casting speed of a casting machine, and can count the time consumed by the casting machine at the low gear in a unit time, because the low casting speed damages the rollers of the casting machine segment, which is not favorable for maintaining the effective accuracy of the casting machine. An appointed threshold value is popped up in the front panel for alarming, and the key position is prompted to be overhauled or maintained.
As shown in fig. 7, for the torque value of the drawing roll at the fan-shaped section of the casting machine, the torque of the drawing roll is increased in the continuous casting production, the running of the rolls of a hot casting blank is influenced, and the blank freezing accident of the casting machine can be seriously caused.
As shown in fig. 8, for the conditions of the crystallizer of the casting machine, the statistics of the excessive steel amount of each sector section and the equipment replacement, an upper limit value is set on the front panel, the excessive steel amount data is intelligently collected, finally, a threshold value alarm can be sent out, the deviation of statistics is reduced, a reference basis is provided for equipment maintenance personnel, and equipment replacement is regularly and quantitatively performed at regular time.
Claims (6)
1. The intelligent data acquisition system for the continuous casting of the wide slab is characterized by comprising the following steps of:
using LabVIEW software to logically program the parameters of the required equipment, manufacturing a human-computer interaction panel, simulating the data required by the process and the equipment, and setting an alarm value or displaying a normal state;
data address matching is carried out with a control system used at present, actual equipment process parameter data is introduced, and after testing functional parameters are normal, programs are continuously operated and data are transmitted and recorded;
generating a fixed executable file, beautifying a design operation picture or monitoring a man-machine picture, attaching an audible and visual alarm, intelligently acquiring real-time process data, and storing the real-time process data into a specified database for subsequent query and comparison work;
expanding the machine loading amount of the program, applying the program to more than two casting machines, installing and executing application programs, debugging different equipment parameters, and finally shaping and putting the product into normal use;
the man-machine interaction panel comprises a front panel of a wide slab continuous casting big data acquisition and analysis system vi and a program block diagram, wherein the front panel of the system comprises a crystallizer width adjustment alarm, a fan-shaped section state monitoring module, a crystallizer and fan-shaped section steel excess amount, a daily casting machine inspection condition and an unplanned heat inquiry display sub-module, each sub-module independently executes a corresponding function to realize man-machine interaction, and a button control is designed on an interface so as to call or record data in real time;
the crystallizer width-adjusting alarm submodule comprises four width-adjusting motors of a crystallizer of a continuous casting machine, a width-adjusting data curve, an alarm threshold value and a width-adjusting motor torque historical data query window of an upper left motor, a lower left motor, an upper right motor and a lower right motor, the width-adjusting motors are subjected to empty machine diagnosis, the motor states are judged predictably, the width-adjusting alarm function is achieved on line, and serious breakout production accidents caused by width-adjusting faults are prevented.
2. The intelligent data acquisition system for continuous casting of wide slabs as claimed in claim 1, wherein the sector status monitoring module comprises: a comparison chart of pressure deviation of the left side and the right side of the hydraulic cylinder at the inlet and the outlet of the fan-shaped section, a drawing roller torque chart and a low drawing speed statistical data window.
3. The intelligent data acquisition system for continuous casting of wide slabs as claimed in claim 1, wherein: the crystallizer and fan-shaped section steel passing gauge module comprises: the method comprises the steps of initial steel excess of the wide side of the crystallizer, initial steel excess of the narrow side of the crystallizer, steel excess data display of the wide side of the crystallizer, overrun alarm display, replacement zero clearing buttons, replacement equipment number display, replacement and historical query data record searching for the steel excess through data writing.
4. The intelligent data acquisition system for continuous casting of wide slabs as claimed in claim 1, wherein: the fan-shaped section state monitoring sub-module is also provided with a casting machine low pulling speed statistical data table which is used for counting the time consumed by the casting machine pulling speed at a low gear in unit time, and a specified threshold value is popped in a front panel program to alarm so as to prompt key parts for overhauling or maintenance.
5. The intelligent data acquisition system for continuous casting of wide slabs as claimed in claim 1, wherein: the torque value alarm of each casting machine fan-shaped section drawing roller is screened in real time and in an imaging mode, and the torque value of the casting machine fan-shaped section drawing roller can be displayed in a notebook mode.
6. The intelligent data acquisition system for continuous casting of wide slabs as claimed in claim 1, wherein: the method comprises the steps of setting an upper limit value on a man-machine interaction panel according to the excessive steel amount statistics and equipment replacement conditions of a casting machine crystallizer and each fan-shaped section, collecting excessive steel amount data, sending out a threshold value alarm, and periodically, regularly and quantitatively replacing equipment.
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Effective date of registration: 20221107 Address after: 117000 No. 16 Renmin Road, Pingshan District, Liaoning, Benxi Patentee after: BENGANG STEEL PLATES Co.,Ltd. Patentee after: BENXI STEEL (GROUP) INFORMATION AUTOMATION CO.,LTD. Address before: 117000 No. 16 Renmin Road, Pingshan District, Liaoning, Benxi Patentee before: BENGANG STEEL PLATES Co.,Ltd. |