CN114134279A - Control method and device of converter - Google Patents
Control method and device of converter Download PDFInfo
- Publication number
- CN114134279A CN114134279A CN202111452291.4A CN202111452291A CN114134279A CN 114134279 A CN114134279 A CN 114134279A CN 202111452291 A CN202111452291 A CN 202111452291A CN 114134279 A CN114134279 A CN 114134279A
- Authority
- CN
- China
- Prior art keywords
- converter
- slag
- slag overflow
- image
- tapping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/4653—Tapholes; Opening or plugging thereof
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/4673—Measuring and sampling devices
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/50—Tilting mechanisms for converters
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
The invention discloses a control method and a device of a converter, wherein the control method comprises the following steps: acquiring a furnace mouth image of the converter; carrying out image recognition on the furnace mouth image to judge whether slag overflows in the converter tapping process, and obtaining a first slag overflow image when the slag overflows; obtaining the slag overflowing area according to the first slag overflowing image; and correspondingly controlling the steel tapping equipment to execute the slag overflow inhibiting action matched with the slag overflow area according to the slag overflow area. The control method of the invention executes different slag overflow inhibiting actions in a grading way in the tapping process, realizes the accurate control of the converter, reduces the interruption of the tapping process while preventing the steel slag from continuously overflowing the furnace mouth, and improves the quality of molten steel and the tapping efficiency of the converter.
Description
Technical Field
The application relates to the technical field of converter control in steelmaking production, in particular to a method and a device for controlling a converter.
Background
In the traditional converter tapping process, a converter shaking worker distinguishes whether the slag overflow phenomenon occurs at the converter mouth through a visual observation method. After the high-efficiency, stable and safe automatic tapping technology is put into use, except for the condition that equipment is in failure or emergency, a converter rocking worker does not participate in the tapping process of the converter, but the phenomenon of slag overflow at the converter mouth of the converter still happens inevitably and occasionally because the iron adding amount or the alloy adding amount of a certain furnace is more.
Therefore, how to precisely control the slag overflowing of the converter is a technical problem to be solved urgently at present.
Disclosure of Invention
The control method and the control device of the converter are used for accurately controlling the converter after slag overflow.
The embodiment of the invention provides the following scheme:
in a first aspect, an embodiment of the present invention provides a method for controlling a converter, including:
acquiring a furnace mouth image of the converter;
carrying out image recognition on the furnace mouth image to judge whether slag overflows in the converter tapping process, and obtaining a first slag overflow image when the slag overflows;
obtaining the slag overflowing area according to the first slag overflowing image;
and correspondingly controlling the steel tapping equipment to execute the slag overflow inhibiting action matched with the slag overflow area according to the slag overflow area.
In an optional embodiment, after acquiring the furnace mouth image of the converter, the control method further includes:
carrying out image recognition on the furnace mouth image to judge whether slag overflows in the converter tilting process, and obtaining a second slag overflow image when slag overflows;
and controlling the converter to gradually reduce the speed to stop in a preset mode according to the second slag overflow image.
In an optional embodiment, before performing image recognition on the furnace mouth image to determine whether slag overflow exists during tapping of the converter, the method further includes:
judging whether the converter executes tapping action or not;
and if so, performing image recognition on the furnace mouth image.
In an optional embodiment, the obtaining of the slag overflow area according to the first slag overflow image includes:
acquiring a historical slag overflow image, wherein the historical slag overflow image is a previous image of the first slag overflow image;
and obtaining the slag overflow area according to the historical slag overflow image and the slag overflow boundary of the slag overflow image.
In an optional embodiment, the correspondingly controlling the tapping equipment to execute the slag overflow inhibiting action matched with the slag overflow area according to the slag overflow area comprises:
comparing the slag overflow area with a preset threshold value;
when the slag overflow area is not larger than the preset threshold value, controlling the tapping equipment to execute a slag overflow inhibiting action at a slight slag overflow level;
and when the slag overflow area is larger than the preset threshold, controlling the tapping equipment to execute a slag overflow inhibiting action of a serious slag overflow grade.
In an alternative embodiment, the tapping apparatus includes the converter, ladle car and alloy chute, and the controlling tapping apparatus performs a slag overflow suppression action of a slight slag overflow level, including:
acquiring a first converter rotation angle, a first target distance and a first chute rotation angle, wherein the first converter rotation angle is a tilting angle of the converter for executing the next action, the first target distance is an advancing distance of the molten steel car for executing the next action, and the first chute rotation angle is a rotation angle of the alloy chute for executing the next action and following the molten steel car;
reducing the rotation angle of the first converter to the rotation angle of a second converter so as to control the converter to perform next tilting;
reducing the first target distance to a second target distance to control the molten steel vehicle to carry out the next step of advancing;
and reducing the first chute rotation angle to a second chute rotation angle to control the alloy chute to perform the next rotation.
In an alternative embodiment, the tapping apparatus includes the converter, ladle car and alloy chute, and the controlling tapping apparatus performs a slag overflow suppression action at a severe slag overflow level, including:
controlling the converter to lift back by a first angle;
controlling the molten steel car to retreat by a preset distance relative to the current position;
and controlling the alloy chute to rotate by a second angle.
In a second aspect, an embodiment of the present invention further provides a control device for a converter, including:
the acquisition module is used for acquiring a furnace mouth image of the converter;
the first obtaining module is used for carrying out image recognition on the furnace mouth image so as to judge whether slag overflows in the converter tapping process, and when the slag overflows, a first slag overflow image is obtained;
the second obtaining module is used for obtaining the slag overflow area according to the first slag overflow image;
and the first control module is used for correspondingly controlling the steel tapping equipment to execute the slag overflow inhibiting action matched with the slag overflow area according to the slag overflow area.
In an optional embodiment, the control device further includes:
the third obtaining module is used for carrying out image recognition on the furnace mouth image so as to judge whether slag overflow exists in the converter tilting process, and when slag overflow exists, a second slag overflow image is obtained;
and the second control module is used for controlling the converter to gradually reduce the speed to stop in a preset mode according to the second slag overflow image.
In an optional embodiment, the control device further includes:
the judging module is used for judging whether the converter executes tapping action or not;
and the execution module is used for executing image recognition on the furnace mouth image when the converter executes the tapping action.
In an alternative embodiment, the second obtaining module includes:
the first acquisition submodule is used for acquiring a historical slag overflow image, wherein the historical slag overflow image is a previous image of the first slag overflow image;
and the first obtaining submodule is used for obtaining the slag overflow area according to the historical slag overflow image and the slag overflow boundary of the slag overflow image.
In an alternative embodiment, the first control module includes:
the comparison submodule is used for comparing the slag overflow area with a preset threshold value;
the first control submodule is used for controlling the tapping equipment to execute the slag overflow inhibiting action of slight slag overflow grade when the slag overflow area is not larger than the preset threshold;
and the second control submodule is used for controlling the tapping equipment to execute the slag overflow inhibiting action of serious slag overflow grade when the slag overflow area is larger than the preset threshold value.
In an alternative embodiment, the tapping apparatus comprises the converter, a ladle car and an alloy chute, the first control sub-module comprising:
the device comprises an acquisition unit, a control unit and a processing unit, wherein the acquisition unit is used for acquiring a first converter rotation angle, a first target distance and a first chute rotation angle, the first converter rotation angle is a tilting angle of the converter for executing the next action, the first target distance is an advancing distance of the molten steel car for executing the next action, and the first chute rotation angle is a rotation angle of the alloy chute for executing the next action and following the molten steel car;
the first control unit is used for reducing the rotation angle of the first converter to the rotation angle of the second converter so as to control the converter to perform next-step tilting;
the second control unit is used for reducing the first target distance to a second target distance so as to control the molten steel car to execute the next step of advancing;
and the third control unit is used for reducing the first chute rotating angle to the second chute rotating angle so as to control the alloy chute to execute the next rotation.
In an alternative embodiment, the tapping apparatus comprises the converter, a ladle car and an alloy chute, the second control submodule comprising:
the fourth control unit is used for controlling the converter to lift back by the first angle;
the fifth control unit is used for controlling the molten steel car to retreat for a preset distance relative to the current position;
and the sixth control unit is used for controlling the alloy chute to rotate by a second angle.
In a third aspect, an embodiment of the present invention further provides an electronic device, including:
a memory for storing a computer program;
a processor for executing the computer program to implement the steps of the method of any of the first aspects.
In a fourth aspect, the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement the steps of the method in any one of the first aspect.
Compared with the prior art, the control method and the control device for the converter provided by the invention have the following advantages:
the first slag overflow image exists in the process of confirming the converter tapping based on the image recognition, and the tapping equipment is correspondingly controlled to execute different levels of slag overflow inhibition actions according to the slag overflow area of the first slag overflow image. Different slag overflow inhibiting actions are executed in a grading manner in the tapping process, so that the accurate control of the converter is realized, the interruption of the tapping process is reduced while the steel slag is prevented from continuously overflowing the furnace mouth, and the molten steel quality and the tapping efficiency of the converter are improved.
Drawings
In order to more clearly illustrate the embodiments of the present specification or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present specification, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flowchart of a method for controlling a converter according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of the tapping device and a camera provided in an embodiment of the invention;
FIG. 3 is a schematic view of a converter in which slag overflow does not occur according to an embodiment of the present invention;
FIG. 4 is a schematic diagram illustrating a slag overflow condition of the converter according to the embodiment of the present invention;
FIG. 5 is a flow chart of tapping from a converter according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a control device of a converter according to an embodiment of the present invention.
Description of reference numerals: 1-converter, 2-molten steel car, 3-alloy chute, 4-slag-stopping slide plate, 5-camera and 6-furnace mouth image.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by those skilled in the art based on the embodiments of the present invention belong to the scope of protection of the embodiments of the present invention.
Referring to fig. 1, fig. 1 is a flowchart of a control method of a converter according to an embodiment of the present invention, including:
and S11, acquiring a furnace mouth image of the converter.
Specifically, referring to fig. 2, fig. 2 is a schematic structural diagram of a tapping device and a camera 5 according to an embodiment of the present invention, the tapping device includes a converter 1, a molten steel car 2 and an alloy chute 3, the converter 1 is provided with a furnace mouth, the furnace mouth is provided with a slag blocking slide plate 4 capable of being opened and closed, the molten steel car 2 can be moved below the converter 1 through a driving mechanism, the camera 5 is installed on one side of the converter 1, and the camera 5 is used for acquiring a furnace mouth image 6 of the converter 1. Before tapping, the molten steel car 2 gradually moves to the position below the converter 1, and the converter 1 synchronously tilts; opening a slag blocking sliding plate 4 after the converter is tilted to a certain angle to start tapping, wherein in the tapping process, the converter 1 is continuously tilted, the molten steel car 2 gradually moves forwards, the alloy chute 3 rotates along with the moving direction of the molten steel car 2, molten steel in the converter 1 is continuously poured into the molten steel car 2, other auxiliary materials according to the requirements of a steelmaking process are added into the molten steel car 2 through the alloy chute 3 in the pouring process, when the molten steel in the converter 1 flows out of 1/3 of the total weight, the alloy chute 3 aims at the molten steel flow and adds the other auxiliary materials into the molten steel car 2, and the other auxiliary materials can be alloy, aluminum slag balls and other materials; after the molten steel in the molten steel car 2 reaches the preset volume, the slag blocking slide plate 4 closes the furnace mouth, the molten steel car 2 moves to the next station, and the converter 1 rotates to the vertical position, namely, the vertical state. The furnace mouth image 6 can be acquired based on the camera 5, and the furnace mouth image 6 can be a visible light image or an infrared image.
In order to ensure the efficiency of tapping, the rotating speed of the converter before tapping and the running speed of the molten steel car are both high, at the moment, the alloy chute does not act, and in the state, if the control on the converter is not accurate enough, the slag overflow at the furnace mouth can easily occur to cause safety accidents.
In a specific embodiment, after acquiring the furnace mouth image of the converter, the control method further includes:
carrying out image recognition on the furnace mouth image to judge whether slag overflows in the converter tilting process, and obtaining a second slag overflow image when the slag overflows; and controlling the converter to gradually reduce the speed to stop in a preset mode according to the second slag overflow image.
Specifically, the second slag overflow image can be obtained by the camera, and when slag overflow exists in the converter tilting process, the second slag overflow image refers to the phenomenon that steel slag overflows from the converter mouth due to strong oxidizing property of dross on the surface of molten steel under the condition that a slag blocking sliding plate is not opened before steel is tapped from the converter steel tapping hole, and at the moment, the molten steel car does not reach the steel tapping position, and if the converter band-type brake is directly controlled to stop, a large amount of molten steel overflows under the action of inertia, or molten steel is caused to stir. The embodiment of the invention controls the converter to gradually reduce the speed to stop in a preset mode, and the gradual speed reduction can be firstly reduced to 75 percent of the current speed from the current speed, then reduced to 50 percent from 75 percent of the current speed, then gradually reduced to 25 percent and finally stopped. So as to avoid the safety accident caused by the slag overflow in the converter tilting process.
The process proceeds to step S12 after the furnace mouth image of the converter is acquired in the above manner.
And S12, carrying out image recognition on the furnace mouth image to judge whether slag overflows in the converter tapping process, and obtaining a first slag overflow image when slag overflows.
Specifically, the image recognition may be performed by converting the furnace mouth image into a processable image format according to an SDK (Software Development Kit, Software tool Development Kit) and performing recognition processing to determine whether slag overflow exists. For example, the acquired furnace mouth image is a visible light image, the visible light image is converted into a gray level image by image identification, and the gray level image is subjected to denoising processing and binarization processing, wherein the denoising processing can be performed by adopting an image denoising algorithm based on discrete cosine transform, because the noise of the image is in a high-frequency part in a discrete cosine transform result and has a small amplitude, the noise suppression of the image can be realized. The binarization processing may be performed by using a special function program, for example, metlab or openVC, or other methods known to those skilled in the art, where there is a certain gray value difference between a slag overflow area and a non-slag overflow area in the furnace mouth image, and according to the difference, it may be determined whether there is a slag overflow area in the furnace mouth image, so as to determine whether there is slag overflow at the current furnace mouth, and when there is slag overflow, it is determined that the furnace mouth image is the first slag overflow image.
The furnace mouth image is subjected to image recognition processing, the furnace mouth image is obtained based on a camera and then transmitted to an upper computer for data processing, and the image recognition processing process relates to an image algorithm, so that the problems of upper computer jamming or data loss caused by overlarge memory consumption of the upper computer due to huge data processing amount are easily caused.
In order to solve the above problem, in a specific embodiment, before performing image recognition on a furnace mouth image to determine whether slag overflow exists during tapping of a converter, the method further includes:
judging whether the converter executes tapping action or not; and if so, performing image recognition on the furnace mouth image.
Specifically, the converter performs the tapping action usually based on the tapping instruction, and the tapping instruction signal can be monitored to determine whether the converter performs the tapping action, for example, if the tapping instruction is "1", the tapping action is determined to be performed, and then image recognition is correspondingly performed on the taphole image; and if the tapping instruction is '0', image recognition of the furnace mouth image is not executed. By adopting the method for image recognition, the slag overflowing situation at the furnace mouth in the converter tapping process can be monitored in real time, unnecessary calculation amount of an upper computer is reduced, memory consumption is saved, and the fluency of the control process of the upper computer is kept.
The process proceeds to step S13 after the first slag overflow image is obtained.
And S13, obtaining the slag overflow area according to the first slag overflow image.
Specifically, the slag overflow area can be calculated according to the slag overflow area of the first slag overflow image, for example, a boundary graph of slag overflow can be extracted through binarization processing, the slag overflow area can be obtained by calculating the pixel area of the boundary graph, after the converter performs a tapping action, image recognition is performed on the furnace mouth image in real time, and the slag overflow area at that moment can be calculated after slag overflow occurs.
It can be understood that, if the pixel area of each of the first slag overflow images is calculated according to the boundary graph of the slag overflow, the calculation amount is large, which is not favorable for the efficient execution of the converter control process.
In a specific embodiment, obtaining the slag overflow area according to the first slag overflow image comprises:
acquiring a historical slag overflow image, wherein the historical slag overflow image is a previous image of the first slag overflow image; and obtaining the slag overflow area according to the historical slag overflow image and the slag overflow boundary of the slag overflow image.
Specifically, the historical slag overflow image and the slag overflow boundary of the slag overflow image can be extracted according to the gray scale boundary of the image, the slag overflow boundary of the slag overflow image and the slag overflow boundary of the historical slag overflow image are subtracted to obtain the difference, the variation of the slag overflow can be obtained, and the slag overflow area can be identified according to the variation. The historical slag overflowing image and the slag overflowing image can be two adjacent frames of furnace mouth images. The algorithm is simple to implement, low in complexity and beneficial to efficient execution of the converter control process. The process proceeds to step S14 after the slag overflow area is obtained.
And S14, correspondingly controlling the tapping equipment to execute the slag overflow inhibiting action matched with the slag overflow area according to the slag overflow area.
Specifically, referring to fig. 3 and 4, in the process of tapping, the slag overflow area is fed back as the tilting angle of the converter, and if the slag overflow area is not obtained, the converter tilts by a preset angle to continuously pour the molten steel into the molten steel car; if the slag overflow occurs, the converter changes along with the tilting angle of the converter according to the change of the slag overflow area. The slag overflow area is increased, and the tilting angle of the converter is reduced when the converter executes the next action so as to prevent the slag overflow from further expanding; otherwise, the converter is tilted according to a preset angle. The maximum static pressure of the converter mouth is ensured to be kept as much as possible under the condition that the steel slag does not overflow from the converter mouth.
In a specific embodiment, according to the slag overflow area, correspondingly controlling the tapping equipment to execute the slag overflow inhibiting action matched with the slag overflow area comprises the following steps:
comparing the slag overflow area with a preset threshold value; when the slag overflow area is not larger than a preset threshold value, controlling the tapping equipment to execute a slag overflow inhibiting action of a slight slag overflow grade; and when the slag overflow area is larger than a preset threshold value, controlling the tapping equipment to execute a slag overflow inhibiting action of a serious slag overflow grade.
Specifically, the preset threshold may be determined according to the model of the converter or the diameter of the converter mouth, or may be determined according to experience of a technician or a calibration test, and when the slag overflow area is not greater than the preset threshold, it is described that, after tapping at the converter mouth, the slag blocking slide plate is opened, the steel slag just overflows the furnace edge of the converter mouth, and the steel slag does not drip; when the slag overflow area is larger than the preset threshold value, the situation that the slag blocking slide plate is opened after tapping at the furnace mouth is described, the steel slag overflows the furnace edge of the furnace mouth and overflows and drips, the situation is determined to be serious slag overflow in the state, the slag overflow inhibiting action is executed according to the serious slag overflow grade, and the converter can be controlled to slow down to the second tilting speed for tilting at the current tilting speed. Wherein the second tilting speed is less than the first tilting speed.
In a particular embodiment, the tapping apparatus includes a converter, a ladle car and an alloy chute, and the tapping apparatus is controlled to perform a slag overflow suppression action at a slight slag overflow level, including:
acquiring a first converter rotation angle, a first target distance and a first chute rotation angle, wherein the first converter rotation angle is a tilting angle for the converter to execute the next action, the first target distance is an advancing distance for the molten steel car to execute the next action, and the first chute rotation angle is a rotation angle for the alloy chute to execute the next action and follow the molten steel car; reducing the rotation angle of the first converter to the rotation angle of the second converter to control the converter to execute next tilting; reducing the first target distance to a second target distance to control the molten steel vehicle to move forward in the next step; and reducing the first chute rotation angle to a second chute rotation angle to control the alloy chute to execute the next rotation.
Specifically, in the tapping process, the converter can continuously tilt, the molten steel car and the alloy chute can move along with the converter, the slight slag overflow level slag overflow inhibiting action is executed, the converter is controlled by the rotation angle of the second converter to execute the next tilting, the further expansion of the slag overflow condition can be reduced, and under the condition that the converter reduces the tilting angle, the molten steel car and the alloy chute cooperatively act to ensure the stability of continuous tapping.
In a particular embodiment, the tapping apparatus includes a converter, a ladle car and an alloy chute, and the tapping apparatus is controlled to perform a slag overflow suppression action at a severe slag overflow level, including:
controlling the converter to lift back by a first angle; controlling the molten steel car to retreat by a preset distance relative to the current position; and controlling the alloy chute to rotate by a second angle.
Specifically, the serious slag overflow grade indicates that the steel slag overflows and drips, if the accident is not inhibited in time, the slag overflow inhibiting action of the serious slag overflow grade is required to be executed, the converter is controlled to lift back, and the molten steel car is correspondingly controlled to retreat and the alloy chute to rotate, so that the steel slag is inhibited from continuously overflowing. The first angle, the preset distance and the second angle can be freely set according to the experience of technicians, and the steel slag can be prevented from continuously overflowing. It should be noted that the converter can be slowly rotated step by controlling the back-lifting of the converter, so as to reduce the overflow of a large amount of molten steel from the converter mouth due to the sloshing of the molten steel.
In the following, the embodiment of the present invention will specifically describe the control flow of the converter by taking automatic tapping as an example. Referring to fig. 5, when the automatic steel tapping starts, the furnace mouth slag overflow detection module is turned on, whether slag overflow occurs at the furnace mouth is obtained in real time through the furnace mouth slag overflow detection module, the alloy chute rotates to the feeding position, the molten steel car moves to the steel tapping waiting position, and the converter tilts to the steel tapping position to perform a preparation action before the converter taps. In the execution process, a furnace mouth slag overflow detection module monitors whether slag overflows from a furnace mouth before tapping or not in real time, if yes, the converter is decelerated and stopped, the converter is lifted back to a vertical position, and the molten steel car returns to a waiting position; if not, the converter opens the slag blocking slide plate to start tapping. And judging whether the slag overflows from the furnace mouth or not in the converter tapping process, determining the slag overflow grade according to the slag overflow area, and performing the slag overflow inhibiting action. Slightly overflowing slag at the furnace mouth, reducing the next target angle of the converter by delta alpha for execution, reducing the next target position of the molten steel car by delta zeta for execution, and reducing the next target angle of the alloy chute by delta beta for execution. And (3) seriously overflowing slag at the furnace mouth, lifting the current angle of the converter back to alpha, retreating the current position of the molten steel car by zeta, and rotating the current angle of the alloy chute by beta so as to inhibit the steel slag from continuously overflowing. And if no slag overflow occurs at the furnace mouth, the alloy chute, the molten steel car and the converter are respectively controlled by respective control models, and the steel tapping action is continuously finished until the steel tapping of the converter is finished. And after tapping, closing the furnace mouth slag overflow monitoring module, namely, not processing the obtained furnace mouth graph. The whole tapping process can be self-adjusted or corrected to be suitable for the field environment, and the intelligent tapping operation with high efficiency, high stability and high safety is realized.
It should be noted that the tapping process can be executed by the primary control system L1, after the control action of the severe slag overflow level is executed, whether slag overflow occurs at the converter mouth is judged again, if yes, the above actions are repeatedly executed, but the total adjustment amount does not exceed the set maximum value αmax、ζmaxAnd betamaxAnd the adjustment has memory aging, and the converter angle, the molten steel car position and the alloy chute position are restored to the set tracks before the adjustment after the preset time length and under the condition of no slag overflow. When the primary control system L1 is regulated to reach the limit, if severe slag overflow occurs, an operator can regulate each single equipment through a converter ' slight lifting ' button and a slight falling ' button, a molten steel car's ' advancing ' button and a molten steel car's ' backward ' button, and an alloy chute's ' left turning ' button and a ' right turning ' button, and the total regulating quantity of the buttons is not more than the set maximum value alpha 'max、ζ’maxAnd beta'max. Neither the fine adjustment of the primary control system L1 nor the button adjustment of the panel affect the tapping state during the current tapping process.
Based on the same inventive concept as the control method, an embodiment of the present invention further provides a control apparatus for a converter, referring to fig. 6, including:
an obtaining module 601, configured to obtain a furnace mouth image of a converter;
a first obtaining module 602, configured to perform image recognition on the furnace mouth image to determine whether slag overflows during tapping of the converter, and obtain a first slag overflow image when slag overflows;
a second obtaining module 603, configured to obtain a slag overflow area according to the first slag overflow image;
and the first control module 604 is configured to correspondingly control the tapping equipment to perform a slag overflow suppression action matched with the slag overflow area according to the slag overflow area.
In an optional embodiment, the control device further includes:
the third obtaining module is used for carrying out image recognition on the furnace mouth image so as to judge whether slag overflow exists in the converter tilting process, and when slag overflow exists, a second slag overflow image is obtained;
and the second control module is used for controlling the converter to gradually reduce the speed to stop in a preset mode according to the second slag overflow image.
In an optional embodiment, the control device further includes:
the judging module is used for judging whether the converter executes tapping action or not;
and the execution module is used for executing image recognition on the furnace mouth image when the converter executes the tapping action.
In an alternative embodiment, the second obtaining module includes:
the first acquisition submodule is used for acquiring a historical slag overflow image, wherein the historical slag overflow image is a previous image of the first slag overflow image;
and the first obtaining submodule is used for obtaining the slag overflow area according to the historical slag overflow image and the slag overflow boundary of the slag overflow image.
In an alternative embodiment, the first control module includes:
the comparison submodule is used for comparing the slag overflow area with a preset threshold value;
the first control submodule is used for controlling the tapping equipment to execute the slag overflow inhibiting action of slight slag overflow grade when the slag overflow area is not larger than the preset threshold;
and the second control submodule is used for controlling the tapping equipment to execute the slag overflow inhibiting action of serious slag overflow grade when the slag overflow area is larger than the preset threshold value.
In an alternative embodiment, the tapping apparatus comprises the converter, a ladle car and an alloy chute, the first control sub-module comprising:
the device comprises an acquisition unit, a control unit and a processing unit, wherein the acquisition unit is used for acquiring a first converter rotation angle, a first target distance and a first chute rotation angle, the first converter rotation angle is a tilting angle of the converter for executing the next action, the first target distance is an advancing distance of the molten steel car for executing the next action, and the first chute rotation angle is a rotation angle of the alloy chute for executing the next action and following the molten steel car;
the first control unit is used for reducing the rotation angle of the first converter to the rotation angle of the second converter so as to control the converter to perform next-step tilting;
the second control unit is used for reducing the first target distance to a second target distance so as to control the molten steel car to execute the next step of advancing;
and the third control unit is used for reducing the first chute rotating angle to the second chute rotating angle so as to control the alloy chute to execute the next rotation.
In an alternative embodiment, the tapping apparatus comprises the converter, a ladle car and an alloy chute, the second control submodule comprising:
the fourth control unit is used for controlling the converter to lift back by the first angle;
the fifth control unit is used for controlling the molten steel car to retreat for a preset distance relative to the current position;
and the sixth control unit is used for controlling the alloy chute to rotate by a second angle.
Based on the same inventive concept as the control method, an embodiment of the present invention further provides an electronic device, including:
a memory for storing a computer program;
a processor for executing the computer program to implement the steps of any of the control methods.
Based on the same inventive concept as the control method, the embodiment of the present invention also provides a computer-readable storage medium on which a computer program is stored, the computer program being executed by a processor to implement the steps of any one of the methods of the control method.
Since the electronic device described in this embodiment is an electronic device used for implementing the method for processing information in this embodiment, a person skilled in the art can understand the specific implementation manner of the electronic device of this embodiment and various variations thereof based on the method for processing information described in this embodiment, and therefore, how to implement the method in this embodiment by the electronic device is not described in detail here. Electronic devices used by those skilled in the art to implement the method for processing information in the embodiments of the present application are all within the scope of the present application.
Claims (10)
1. A method for controlling a converter, comprising:
acquiring a furnace mouth image of the converter;
carrying out image recognition on the furnace mouth image to judge whether slag overflows in the converter tapping process, and obtaining a first slag overflow image when the slag overflows;
obtaining the slag overflowing area according to the first slag overflowing image;
and correspondingly controlling the steel tapping equipment to execute the slag overflow inhibiting action matched with the slag overflow area according to the slag overflow area.
2. The method of controlling a converter according to claim 1, wherein after the step of obtaining the mouth image of the converter, the method further comprises:
carrying out image recognition on the furnace mouth image to judge whether slag overflows in the converter tilting process, and obtaining a second slag overflow image when slag overflows;
and controlling the converter to gradually reduce the speed to stop in a preset mode according to the second slag overflow image.
3. The method for controlling the converter according to claim 1, wherein before the image recognition of the taphole image to determine whether there is a slag overflow during tapping of the converter, the method further comprises:
judging whether the converter executes tapping action or not;
and if so, performing image recognition on the furnace mouth image.
4. The method for controlling a converter according to claim 1, wherein the obtaining of the slag overflow area from the first slag overflow image comprises:
acquiring a historical slag overflow image, wherein the historical slag overflow image is a previous image of the first slag overflow image;
and obtaining the slag overflow area according to the historical slag overflow image and the slag overflow boundary of the slag overflow image.
5. The method for controlling the converter according to claim 1, wherein the correspondingly controlling the tapping equipment to perform the slag overflow suppressing action matched with the slag overflow area according to the slag overflow area comprises:
comparing the slag overflow area with a preset threshold value;
when the slag overflow area is not larger than the preset threshold value, controlling the tapping equipment to execute a slag overflow inhibiting action at a slight slag overflow level;
and when the slag overflow area is larger than the preset threshold, controlling the tapping equipment to execute a slag overflow inhibiting action of a serious slag overflow grade.
6. The control method of the converter according to claim 5, characterized in that the tapping apparatus comprises the converter, a ladle car and an alloy chute, and the control tapping apparatus performs a slag overflow suppression action of a slight slag overflow level, comprising:
acquiring a first converter rotation angle, a first target distance and a first chute rotation angle, wherein the first converter rotation angle is a tilting angle of the converter for executing the next action, the first target distance is an advancing distance of the molten steel car for executing the next action, and the first chute rotation angle is a rotation angle of the alloy chute for executing the next action and following the molten steel car;
reducing the rotation angle of the first converter to the rotation angle of a second converter so as to control the converter to perform next tilting;
reducing the first target distance to a second target distance to control the molten steel vehicle to carry out the next step of advancing;
and reducing the first chute rotation angle to a second chute rotation angle to control the alloy chute to perform the next rotation.
7. The control method for the converter according to claim 5, characterized in that the tapping apparatus comprises the converter, a ladle car and an alloy chute, and the control tapping apparatus performs a slag overflow suppression action of a severe slag overflow level, comprising:
controlling the converter to lift back by a first angle;
controlling the molten steel car to retreat by a preset distance relative to the current position;
and controlling the alloy chute to rotate by a second angle.
8. A control device for a converter, comprising:
the acquisition module is used for acquiring a furnace mouth image of the converter;
the first obtaining module is used for carrying out image recognition on the furnace mouth image so as to judge whether slag overflows in the converter tapping process, and when the slag overflows, a first slag overflow image is obtained;
the second obtaining module is used for obtaining the slag overflow area according to the first slag overflow image;
and the first control module is used for correspondingly controlling the steel tapping equipment to execute the slag overflow inhibiting action matched with the slag overflow area according to the slag overflow area.
9. An electronic device, comprising:
a memory for storing a computer program;
a processor for executing the computer program to carry out the steps of the method of any one of claims 1 to 7.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, is adapted to carry out the steps of the method of any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111452291.4A CN114134279B (en) | 2021-12-01 | 2021-12-01 | Control method and device of converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111452291.4A CN114134279B (en) | 2021-12-01 | 2021-12-01 | Control method and device of converter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114134279A true CN114134279A (en) | 2022-03-04 |
| CN114134279B CN114134279B (en) | 2022-12-16 |
Family
ID=80387079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111452291.4A Active CN114134279B (en) | 2021-12-01 | 2021-12-01 | Control method and device of converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114134279B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110747306A (en) * | 2019-11-15 | 2020-02-04 | 湖南镭目科技有限公司 | Method, device and equipment for controlling slag overflow in converter tapping process and storage medium |
| CN111127420A (en) * | 2019-12-20 | 2020-05-08 | 河钢股份有限公司 | Method for quantitatively judging slag overflowing situation of converter mouth in converter tapping process |
| CN112458231A (en) * | 2020-11-17 | 2021-03-09 | 中冶南方工程技术有限公司 | Converter slag discharge detection method and system |
| WO2021190568A1 (en) * | 2020-03-26 | 2021-09-30 | 宝山钢铁股份有限公司 | Fully-automatic slag dumping method and system for converter |
-
2021
- 2021-12-01 CN CN202111452291.4A patent/CN114134279B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110747306A (en) * | 2019-11-15 | 2020-02-04 | 湖南镭目科技有限公司 | Method, device and equipment for controlling slag overflow in converter tapping process and storage medium |
| CN111127420A (en) * | 2019-12-20 | 2020-05-08 | 河钢股份有限公司 | Method for quantitatively judging slag overflowing situation of converter mouth in converter tapping process |
| WO2021190568A1 (en) * | 2020-03-26 | 2021-09-30 | 宝山钢铁股份有限公司 | Fully-automatic slag dumping method and system for converter |
| CN112458231A (en) * | 2020-11-17 | 2021-03-09 | 中冶南方工程技术有限公司 | Converter slag discharge detection method and system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114134279B (en) | 2022-12-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3533535B1 (en) | Control method and apparatus for inhibiting slag entrapment in ladle in last stage of pouring during continuous casting | |
| CN111809016B (en) | Automatic tapping method of converter and converter system | |
| CN110616289A (en) | Tapping flow control method and system for full-automatic tapping of converter | |
| CN111809015B (en) | Converter automatic tapping method based on converter volume model and converter system | |
| CN103255261B (en) | Converter tapping hole sliding gate slag-stopping process | |
| CN110747306A (en) | Method, device and equipment for controlling slag overflow in converter tapping process and storage medium | |
| CN111522293B (en) | Automatic tilting control method and system for metallurgical tank | |
| CN113088615B (en) | Converter tapping control method and system based on video identification technology | |
| CN114134279B (en) | Control method and device of converter | |
| JP2540032B2 (en) | Method for starting a continuous casting machine with multiple slabs | |
| CN113444854B (en) | Full-automatic converter deslagging method and system | |
| US4708193A (en) | Process for removing deposits from the flow channel of a tundish during continuous casting | |
| CN107790665B (en) | Automatic control method and system for liquid level of tundish | |
| CN113881827A (en) | Control method and device for ladle refining furnace | |
| CN115216579A (en) | Method and device for optimizing automatic tapping model curve of converter | |
| JPS5946705B2 (en) | Method for controlling molten metal level in continuous casting mold | |
| CN112613166A (en) | Method for planning tilting curve of converter tapping and method for controlling converter tapping | |
| JP3231986B2 (en) | Bucket vertical run-out control method and apparatus | |
| CN115402896B (en) | Surface treatment equipment, control method and device, medium and electronic equipment | |
| CN118206021B (en) | Automatic control system of crane | |
| JP2690957B2 (en) | Position control method of movable electrode in DC arc furnace | |
| CN113088621A (en) | Automatic furnace lifting control method and system in converter tapping process | |
| JP3284669B2 (en) | Casting start method in continuous casting | |
| CN116100010A (en) | Design method for realizing automatic can pouring | |
| CN113088622A (en) | Automatic furnace pressing control method and system in tapping process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |