CN112257590B - Automatic detection method, system and storage medium for working state of blast furnace tap hole - Google Patents
Automatic detection method, system and storage medium for working state of blast furnace tap hole Download PDFInfo
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Abstract
The invention relates to the field of metallurgical automation, and discloses an automatic detection method, an automatic detection system and a storage medium for the working state of a blast furnace iron notch, wherein the method comprises the following steps: an infrared camera and a visible light camera are arranged at the position opposite to the iron notch, and image acquisition is carried out; collecting images in a visible light camera, and identifying the positions of an opening machine and mud bubbles in the visible light images; collecting images in the infrared camera, calibrating the position of a tap hole in the infrared camera, and identifying the temperature of the tap hole; the relative positions of the tapping machine and the tap hole and the temperature of the tap hole position are detected through image recognition, and the time of starting operation of the tapping machine, the time of opening the tap hole, the time of plugging the tap hole, the time of slag-seeing of the tap hole and the like can be accurately recorded, so that the tapping condition of the blast furnace is managed in real time.
Description
Technical Field
The invention belongs to the technical field of metallurgical automation, and particularly relates to an automatic detection method, an automatic detection system and a storage medium for the working state of a blast furnace tap hole.
Background
In the steel industry, the tapping management of the blast furnace is an important component part in the daily operation of the blast furnace, and the uniformity of tapping time and the early and late time of slag seeing time are important marks for measuring whether the operation of a tap hole of the blast furnace is normal, so that the automatic identification of the tapping time is the basis of enterprise production automation and management informatization.
At present, the method for recording the time of tapping, blocking and slag-seeing is generally adopted in iron works, is manually judged, and then corresponding time is input on a computer. Because the work rhythm on the blast furnace is fast, the thing is many, often can not record in the first time, leads to the inaccurate scheduling problem of time of record.
Automatic detection of the status of the tap hole is derived from pattern recognition, which is a specific application of computer vision technology in various industries. Computer vision is the replacement of the visual organ with various imaging systems as input information. The processing and interpretation is done by a computer instead of the brain. The ultimate goal of computer vision is to study the ability of a computer to perceive and understand the world as if it were a person, with autonomous adaptive environment. At present, the application scenes of computer vision in iron and steel enterprises are more and more, the labor cost of the enterprises is reduced in different ranges, and the timeliness of information is also ensured. However, the conventional image technology needs to design a large number of artificial features, and some features may be blocked by some objects and machinery in a complex production environment, so that the problem of low recognition rate and the like are solved, and how to overcome the defects of the prior art is a problem to be solved in the technical field of metallurgical automation at present.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide an automatic detection method, an automatic detection system and a storage medium for the working state of a blast furnace tap hole, so that the automatic recording of tapping time and slag-seeing time is realized, the accuracy is improved, and the manpower is reduced.
In order to achieve the above purpose, the invention provides an automatic detection method for the working state of a blast furnace tap hole, comprising the following steps:
s1: an infrared camera and a visible light camera are arranged at the position opposite to the iron notch, and image acquisition is carried out;
s2: collecting images in a visible light camera, and identifying the positions of an opening machine and mud bubbles in the visible light images;
s3: collecting images in the infrared camera, calibrating the position of a tap hole in the infrared camera, and identifying the temperature of the tap hole;
s4: when detecting that the tapping machine rotates to the position of the iron notch, considering that the tapping machine starts to tap the iron notch, and recording the current time as the tapping machine starting operation time;
s5: detecting the temperature of the position of the iron notch after detecting that the tapping machine leaves the position of the iron notch;
s6: according to the temperature determination of the tap hole position in step S5: if the temperature of the position of the iron notch rises to a first threshold value interval of the iron flow, the iron notch is considered to be opened, the current time is recorded as iron notch opening time, and the difference between the starting operation time of the tapping machine and the iron notch opening time is calculated, wherein the difference is the iron notch opening time;
s7: when the rotation of the gun to the position of the iron notch is detected, storing the time at the moment, and after a period of time, detecting the temperature of the position of the iron notch when the gun leaves the position of the iron notch;
s8: according to the temperature determination of the tap hole position in step S7: if the temperature of the position of the iron notch is reduced to the second threshold value interval of solidification of the iron flow, the iron notch is regarded as blocked, and the stored time in the step S7 is recorded as iron notch blocking time;
s9: and extracting a visible light image of the slag runner position, detecting the color of the visible light image, and when the whole slag runner is changed into red or red-yellow composite color, taking the visible light image as slag seen by a taphole and recording that the current time is slag seen by the taphole.
Further, in the step S2, the images in the visible light camera are collected, and the positions of the tapping machine and the mud bubble in the visible light images are identified through the trained YOLO neural network.
Further, the image acquisition range of the visible light camera covers the tapping machine of the iron notch, the working position of the mud bubble and the whole slag runner.
Further, the first threshold interval is 1200-1500 ℃.
Further, the second threshold interval is lower than 1000 ℃.
In order to achieve the above purpose, the invention also provides an automatic detection system for the working state of the blast furnace iron notch, which is characterized in that: the system comprises an infrared camera, a visible light camera and a server;
the visible light camera and the infrared camera are arranged at positions opposite to the iron notch and used for monitoring the actions of iron flows and related equipment, collecting video flows and sending the video flows to the server;
the server runs a section of computer program, and the computer program is used for executing the automatic detection method for the working state of the blast furnace tap hole.
To achieve the above object, the present invention also provides a computer nonvolatile storage medium storing a computer program for executing the automatic detection method of the operating state of the blast furnace tap hole as described above.
The technical effects are as follows:
the invention provides a method for automatically detecting the working state of a blast furnace tap hole, which adopts a mode of combining the technology of image recognition and the process knowledge to realize the automatic recording of the tapping time and the slag-seeing time, improve the accuracy and reduce the manpower.
Drawings
FIG. 1 is a flow chart of an automatic detection method for the operating state of a blast furnace taphole.
Detailed Description
For further illustration of the various embodiments, the invention is provided with the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments and together with the description, serve to explain the principles of the embodiments. With reference to these matters, one of ordinary skill in the art will understand other possible embodiments and advantages of the present invention. The components in the figures are not drawn to scale and like reference numerals are generally used to designate like components.
The invention will now be further described with reference to the drawings and detailed description.
The invention discloses an automatic detection method for the working state of a blast furnace tap hole,
the method comprises the following steps:
s1: an infrared camera and a visible light camera are arranged at the position opposite to the iron notch, and image acquisition is carried out;
s2: collecting images in a visible light camera, and identifying the positions of an opening machine and mud bubbles in the visible light images;
s3: collecting images in the infrared camera, calibrating the position of a tap hole in the infrared camera, and identifying the temperature of the tap hole;
s4: when the tapping machine is detected to rotate to the position of the iron notch, the tapping machine is considered to start tapping the iron notch, and the current time is recorded as the tapping machine starting operation time t 1 ；
S5: detecting the temperature of the position of the iron notch after detecting that the tapping machine leaves the position of the iron notch;
s6: according to the temperature determination of the tap hole position in step S5: if the temperature of the position of the iron notch rises to the first threshold value interval of the iron flow, the iron notch is considered to be opened, and the current time is recorded as iron notch opening time t 2 And calculate the start operating time t of the tapping machine 1 To the tap hole opening time t 2 Is the tapping time length;
s7: when the rotation of the gun to the position of the iron notch is detected, storing the time at the moment, and after a period of time, detecting the temperature of the position of the iron notch when the gun leaves the position of the iron notch;
s8: according to the temperature determination of the tap hole position in step S7: if the temperature of the position of the iron notch is reduced to the second threshold value interval of solidification of the iron stream, the iron notch is regarded as being blocked, and the stored time in the step S7 is recorded as iron notch blocking time t 3 ；
S9: extracting visible light images of slag runner positions, detecting colors of the visible light images, when the whole slag runner is changed into red or red-yellow composite color, taking the visible light images as slag of a tapping hole, and recording that the current time is the slag-see time t of the tapping hole 4 。
Preferably, in the step S2, the images in the visible light camera are collected, and the positions of the tapping machine and the mud bubble in the visible light images are identified through the trained YOLO neural network.
Before automatic detection of the working state of the blast furnace tap hole is executed, the neural network training and the position calibration of image recognition are needed, as shown in fig. 1, and the method comprises the following steps:
collecting a large number of visible light images, calibrating the positions of the tapping machine, the mud gun and the iron notch, and manufacturing a data set;
constructing a neural network such as YOLO, and training the neural network by utilizing the data set;
and acquiring an infrared image, and marking the position of the blast furnace iron notch in an infrared camera.
After the preparation work is finished, the automatic detection of the working state of the blast furnace tap hole is carried out, the action and the temperature of related components are detected by using a neural network and an infrared camera, and the time point when the requirements are met is recorded.
Preferably, the image acquisition range of the visible light camera covers the tapping machine of the tap hole, the working position of the mud bubble and the whole slag runner, so that the monitoring of the tap hole of the blast furnace can be completed through a single visible light camera.
Preferably, the first threshold value interval is 1200-1500 ℃, the iron flow is in a fluid state in the temperature interval, and the interval can be appropriately adjusted according to different proportions of iron and iron alloy.
Further, the second threshold interval is lower than 1000 ℃, and the iron flow is in a non-fluid state in the temperature interval.
The invention also provides an automatic detection system for the working state of the blast furnace taphole, which is characterized in that: the system comprises an infrared camera, a visible light camera and a server;
the visible light camera and the infrared camera are arranged at positions opposite to the iron notch and used for monitoring the actions of iron flows and related equipment, collecting images and sending the images to the server;
the server runs a computer program for executing the automatic detection method of the working state of the blast furnace tap hole.
The computer program is stored in a computer nonvolatile storage medium, and the computer nonvolatile storage medium can be a mechanical hard disk, a solid state disk, an on-board Flash memory, an external USB Flash disk, an optical disk and other devices in a local server or a cloud server, and can be called and operated by at least one processor in the local server (such as an industrial personal computer system) or the cloud server, and the automatic detection method for the working state of the blast furnace iron notch is described above.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. The automatic detection method for the working state of the blast furnace iron notch is characterized by comprising the following steps:
s1: an infrared camera and a visible light camera are arranged at the position opposite to the iron notch, and image acquisition is carried out;
s2: collecting images in a visible light camera, and identifying the positions of an opening machine and mud bubbles in the visible light images;
s3: collecting images in the infrared camera, calibrating the position of a tap hole in the infrared camera, and identifying the temperature of the tap hole;
s4: when detecting that the tapping machine rotates to the position of the iron notch, considering that the tapping machine starts to tap the iron notch, and recording the current time as the starting operation time of the tapping machine;
s5: detecting the temperature of the position of the iron notch after detecting that the tapping machine leaves the position of the iron notch;
s6: according to the temperature determination of the tap hole position in step S5: if the temperature of the position of the iron notch rises to a first threshold value interval of the iron flow, the iron notch is considered to be opened, the current time is recorded as iron notch opening time, and the difference between the starting operation time of the tapping machine and the iron notch opening time is calculated, wherein the difference is the iron notch opening time;
s7: when the rotation of the gun to the position of the iron notch is detected, storing the time at the moment, and after a period of time, detecting the temperature of the position of the iron notch when the gun leaves the position of the iron notch;
s8: according to the temperature determination of the tap hole position in step S7: if the temperature of the position of the iron notch is reduced to the second threshold value interval of solidification of the iron flow, the iron notch is regarded as blocked, and the stored time in the step S7 is recorded as iron notch blocking time;
s9: and extracting a visible light image of the slag runner position, detecting the color of the visible light image, and when the whole slag runner is changed into red or red-yellow composite color, taking the visible light image as slag seen by the iron notch and recording that the current time is slag seen by the iron notch.
2. The automatic detection method for the operating state of the blast furnace taphole according to claim 1, wherein: and S2, acquiring images in the visible light camera, and identifying the positions of the tapping machine and the mud bubble in the visible light images through a trained YOLO neural network.
3. The automatic detection method for the operating state of the blast furnace taphole according to claim 1, wherein: the image acquisition range of the visible light camera covers the tapping machine of the iron notch, the working position of the mud foam and the whole slag runner.
4. The automatic detection method for the operating state of the blast furnace taphole according to claim 1, wherein: the first threshold interval is 1200-1500 ℃.
5. The automatic detection method for the operating state of the blast furnace taphole according to claim 1, wherein: the second threshold interval is below 1000 ℃.
6. An automatic detection system for the working state of a blast furnace iron notch is characterized in that: the system comprises an infrared camera, a visible light camera and a server;
the visible light camera and the infrared camera are arranged at positions opposite to the iron notch and used for monitoring the actions of iron flows and related equipment, collecting images and sending the images to the server;
the server is operated with a computer program for executing the automatic detection method of the operating state of the blast furnace tap hole according to any one of claims 1 to 5.
7. A computer nonvolatile storage medium, characterized in that a computer program for executing the automatic detection method of the operating state of the blast furnace tap according to any one of claims 1-5 is stored.
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| CN202011138001.4A CN112257590B (en) | 2020-10-22 | 2020-10-22 | Automatic detection method, system and storage medium for working state of blast furnace tap hole |
| PCT/CN2021/101693 WO2022083155A1 (en) | 2020-10-22 | 2021-06-23 | Method and system for automatically detecting operation state of blast furnace taphole, and storage medium |
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| CN202011138001.4A CN112257590B (en) | 2020-10-22 | 2020-10-22 | Automatic detection method, system and storage medium for working state of blast furnace tap hole |
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| CN112257590B (en) * | 2020-10-22 | 2023-08-01 | 中冶南方工程技术有限公司 | Automatic detection method, system and storage medium for working state of blast furnace tap hole |
| CN114187280A (en) * | 2021-12-14 | 2022-03-15 | 重庆赛迪奇智人工智能科技有限公司 | Method and device for detecting iron receiving state |
| CN115074473A (en) * | 2022-06-17 | 2022-09-20 | 马鞍山钢铁股份有限公司 | Remote intelligent maintenance system and method for mud beating mechanism |
| CN115541030B (en) * | 2022-09-21 | 2024-02-27 | 中冶南方工程技术有限公司 | Method and device for identifying blast furnace top charge level temperature distribution and storage medium |
| CN115612765B (en) * | 2022-10-14 | 2023-05-26 | 合肥视展光电科技有限公司 | Real-time detection control method and system for blast furnace tapping state |
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