CN117600427A - Method, equipment and storage medium for online length measurement of continuous casting blank - Google Patents
Method, equipment and storage medium for online length measurement of continuous casting blank Download PDFInfo
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- CN117600427A CN117600427A CN202410042290.XA CN202410042290A CN117600427A CN 117600427 A CN117600427 A CN 117600427A CN 202410042290 A CN202410042290 A CN 202410042290A CN 117600427 A CN117600427 A CN 117600427A
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000009749 continuous casting Methods 0.000 title claims abstract description 19
- 238000005259 measurement Methods 0.000 title claims description 15
- 238000003860 storage Methods 0.000 title claims description 7
- 238000005266 casting Methods 0.000 claims abstract description 121
- 238000005520 cutting process Methods 0.000 claims abstract description 50
- 238000001514 detection method Methods 0.000 claims abstract description 20
- 238000004590 computer program Methods 0.000 claims description 9
- 238000003825 pressing Methods 0.000 claims description 8
- 238000000691 measurement method Methods 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 claims 2
- 238000011065 in-situ storage Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000014509 gene expression Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
Classifications
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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
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/126—Accessories for subsequent treating or working cast stock in situ for cutting
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
The invention discloses a continuous casting blank online length measuring method, which comprises the following steps: acquiring casting length information corresponding to the head and tail of the residual casting blank; acquiring casting length and cutter position information during cutting; based on the photoelectric detection information in the tracking runner, when the photoelectric detection feedback signal is from existence to nonexistence, the head of the casting blank just reaches the photoelectric detection point, the casting length of the runner is obtained by subtracting the casting length corresponding to the last cutting point from the casting length tracked by the PLC, the deviation value is obtained by subtracting the real casting length corresponding to the position of the photoelectric tube from the casting length of the runner, the deviation is recorded as the correction length, the casting length of the last cutting point and the casting length of the current cutting point are combined when the casting blank is cut, the casting blank calculated length is obtained, and the real casting blank length is obtained by subtracting the correction length from the casting length. The method provides timely and real operation feedback for cutting operators, reduces the labor intensity of workers and improves the labor efficiency.
Description
Technical Field
The invention belongs to the field of continuous casting production processes of steel mills, is used for continuous casting production casting blank length measurement management, and relates to a method, equipment and storage medium for online continuous casting blank length measurement.
Background
In the continuous casting production process, related equipment detects information such as pull speed, casting length and the like in real time, and generally, operators perform related production operations according to the information. The measured casting length is longer or shorter than the actual casting blank due to the instability of the related detection equipment, the unevenness of the casting blank and the like.
In this case, it is inaccurate to directly calculate the length of the cast slab by using the difference between the casting lengths corresponding to the current cutting point and the last cutting point. In order to obtain the real casting blank length, manual length measurement or special equipment length measurement is usually needed, so that the manual labor intensity or equipment investment is increased, the real-time property of data is reduced, and the actual production operation is not facilitated.
Disclosure of Invention
In order to solve the problems, the invention adopts the following technical scheme: the online length measurement method for the continuous casting blank comprises the following steps of:
obtaining the length of the residual casting blank, the casting length and other information corresponding to the head of the casting blank, and the casting length and other information corresponding to the tail of the casting blank;
acquiring casting length and cutter position information during cutting;
based on photoelectric detection information in a tracking runner, when a photoelectric detection feedback signal is from existence to nonexistence, the head of a casting blank just reaches a photoelectric detection point at the moment, the tracked casting length of the casting blank in the runner is obtained by subtracting the casting length corresponding to the last cutting point, a deviation value is obtained by subtracting the real casting blank length corresponding to the position of a photoelectric tube from the tracked casting blank length, and the deviation is recorded as a correction length;
when the casting blank is cut, combining the casting length of the last cutting point and the casting length of the current cutting point to obtain the calculated length of the casting blank, and subtracting the correction length from the calculated length of the casting blank to obtain a tracking result which is close to the real casting blank length.
Further, the method is suitable for the automatic cutting mode, the cutting machine automatically returns to the original position after completing one-time cutting, and when the length to be cut condition is met, pre-pressing, main pressing and cutting processes are executed.
Further, the length of the casting blank is 8-11 meters, and the photoelectric detection point is at the position 7.5 meters, 9.0 meters or 10.8 meters at the back end of the cutting machine.
Further, the correction length corrects the length of the cut casting blank according to the difference between the length of the real casting blank corresponding to the detection point and the length of the tracking residual casting blank.
An online length measuring device for continuous casting blanks comprises a photoelectric tube, a processor and a memory, wherein the processor realizes the online length measuring method for the casting blanks according to any one of the above when executing a computer program stored in the memory.
A computer readable storage medium storing a computer program, wherein the computer program when executed by a processor implements the method of online length measurement as claimed in any one of the preceding claims.
According to the method, the device and the storage medium for online length measurement of the continuous casting blank, the accurate length can be obtained when the casting blank starts to be cut, so that the instantaneity and the accuracy of the length of the casting blank are improved, timely and real operation feedback is provided for cutting operators, the labor intensity is reduced, and the labor efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of the method of the present application;
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features in the embodiments may be combined with each other, and the present invention will be described in detail below with reference to the drawings and the embodiments.
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments of the present invention. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present invention. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be clear that the dimensions of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present invention, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present invention: the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present invention.
FIG. 1 is a flow chart of the method of the present application;
the online length measurement method for the continuous casting blank comprises the following steps of:
s1, tracking information such as casting performance, cutting performance, photoelectric tube detection performance and the like of each runner of continuous casting, and acquiring the length of a residual casting blank, casting length information corresponding to the head of the casting blank and casting length information corresponding to the tail of the casting blank;
s2, cutting information of a casting blank is generated according to pre-pressing, main pressing and cutting start information of a cutting machine, and casting length and other information corresponding to cutting points when cutting is started each time are recorded;
real-time tracking cutting information, and acquiring casting length and cutter position information during cutting;
s3, based on photoelectric detection information in a tracking runner, when a photoelectric detection feedback signal is from existence to nonexistence, the head of a casting blank just reaches a photoelectric detection point, the casting length corresponding to the last cutting point is subtracted from the casting length tracked by a PLC (programmable logic controller) to obtain the tracking length of the calculated casting blank in the runner, the tracking length of the casting blank is subtracted from the length of the position of a photoelectric tube to obtain the deviation of a tracking value and a real object, and the difference is recorded as a correction value;
and S4, subtracting the correction value from the tracked cutting length of the casting blank when the casting blank is cut, and obtaining a tracking result which is close to the real casting blank length.
The steps S1/S2/S3/S4 are sequentially executed;
further, the method is suitable for the automatic cutting mode, the cutting machine automatically returns to the original position after completing one-time cutting, and when the length to be cut condition is met, pre-pressing, main pressing and cutting processes are executed.
Further, the length of the casting blank is 8-11 meters, and the photoelectric detection point is at the position of 7.5 meters, 9.0 meters or about 10.8 meters at the back end of the cutting machine.
Further, the correction length corrects the length of the cut casting blank according to the difference between the length of the real casting blank corresponding to the detection point and the length of the tracking residual casting blank, so that the real length of the cut casting blank is obtained.
An online length measuring device for continuous casting blanks comprises a photoelectric tube, a processor and a memory, wherein the processor realizes the online length measuring method for the casting blanks according to any one of the above when executing a computer program stored in the memory.
A computer readable storage medium storing a computer program, wherein the computer program when executed by a processor implements the method of online length measurement of any of the claims.
Example 1:
s1, acquiring the length of a residual casting blank and casting length information corresponding to the head and the tail of the casting blank;
s2, acquiring casting length and cutter position information during cutting;
s3, correcting the position of 7.5 meters when the length of the target casting blank is 8.5 meters,
for example, when the head of the casting blank reaches 7.5 meters, the casting length corresponding to the last cutting point is 105 meters, the casting length corresponding to the origin of the cutting machine is 45 meters, the tracked casting blank length after cutting is 7.6 meters (105-52.4-45=7.6 meters), and the correction length is 0.1 meters (7.6-7.5=0.1 meters);
and S4, performing main pressure on the casting blank before and after the position of 8.5 meters, wherein the tracking length is supposed to be 106.03 meters, the corresponding tracking casting blank length is 8.63 meters (106.03-52.4-45=8.63 meters), and the real casting blank length is 8.53 meters (8.63-0.1=8.53 meters).
Example 2:
s1, acquiring the length of a residual casting blank and casting length information corresponding to the head and the tail of the casting blank;
s2, acquiring casting length and cutter position information during cutting;
s3, correcting the position of the target casting blank at 10.8 meters when the length of the target casting blank is 11 meters,
for example, when the head of the casting blank reaches 10.8 meters, the casting length corresponding to the last cutting point is 108 meters, the casting length corresponding to the origin of the cutting machine is 45 meters, the tracked casting blank length after cutting is 10.6 meters (108-52.4-45=10.6 meters), and the correction length is-0.2 meters (10.6-10.8= -0.2 meters);
and S4, performing main pressure on the casting blank before and after the 11-meter position, wherein the tracking length is assumed to be 108.03 meters, the corresponding tracking casting blank length is 10.63 meters (108.03-52.4-45=10.63 meters), and the real casting blank length is 10.83 meters (10.63+0.2=10.83 meters).
The invention is designed, developed and realized by the applicant, and is applied for the first time in a steel mill 1930 and 1650 continuous casting machine of Wenchang steel vanadium company of Pan Steel group in 5 month in 2023, after the online length measurement is carried out by adopting the method, the length of a casting blank can be obtained after the cutting is started, and the deviation between the length and an actual casting blank is within 2 cm.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (6)
1. A continuous casting blank on-line length measuring method is characterized in that: the method comprises the following steps:
acquiring the length of a residual casting blank, casting length information corresponding to the head part of the casting blank and casting length information corresponding to the tail part of the casting blank;
acquiring casting length information and cutter position information during cutting;
acquiring photoelectric detection information in the runner in real time, when a photoelectric detection feedback signal is from existence to nonexistence, at the moment, the head of the casting blank reaches a photoelectric detection point, the tracked casting length of the casting blank in the runner is obtained by subtracting the casting length corresponding to the last cutting point, the tracking length of the casting blank is used for subtracting the real casting blank length corresponding to the position of the photoelectric tube, a deviation value is obtained by subtracting the real casting blank length corresponding to the position of the photoelectric tube from the tracking length of the casting blank, and the deviation is recorded as a correction length;
when the casting blank is cut, the casting length of the last cutting point and the casting length of the current cutting point are combined to obtain the casting blank tracking calculation length, and the tracking result which is close to the real casting blank length is obtained by subtracting the correction length from the calculation length.
2. The method for online length measurement of continuous casting billets according to claim 1, wherein the method comprises the following steps: the method is suitable for the automatic cutting mode, the cutting machine automatically returns to the original position after one-time cutting is completed, and when the length to be cut condition is met, pre-pressing, main pressing and cutting processes are executed.
3. The method for online length measurement of continuous casting billets according to claim 1, wherein the method comprises the following steps: the length of the casting blank is 8-11 meters, and the photoelectric detection point is positioned at the 7.5 meter, 9.0 meter or 10.8 meter position at the back end of the cutting machine in situ.
4. The method for online length measurement of continuous casting billets according to claim 1, wherein the method comprises the following steps: and correcting the length of the cut casting blank according to the difference value between the length of the real casting blank corresponding to the detection point and the length of the tracking residual casting blank.
5. An apparatus for online length measurement of a continuous casting billet, comprising a photocell, a processor, a memory and the like, wherein the processor implements the online length measurement method of a casting billet according to any one of claims 1 to 4 when executing a computer program stored in the memory.
6. A computer readable storage medium for storing a computer program, wherein the computer program when executed by a processor implements the method of online length measurement according to any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410042290.XA CN117600427A (en) | 2024-01-10 | 2024-01-10 | Method, equipment and storage medium for online length measurement of continuous casting blank |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410042290.XA CN117600427A (en) | 2024-01-10 | 2024-01-10 | Method, equipment and storage medium for online length measurement of continuous casting blank |
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| CN117600427A true CN117600427A (en) | 2024-02-27 |
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| CN202410042290.XA Pending CN117600427A (en) | 2024-01-10 | 2024-01-10 | Method, equipment and storage medium for online length measurement of continuous casting blank |
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