CN115992309A - Method and system for tracking and controlling inner plate blank of furnace - Google Patents

Method and system for tracking and controlling inner plate blank of furnace Download PDF

Info

Publication number
CN115992309A
CN115992309A CN202211603512.8A CN202211603512A CN115992309A CN 115992309 A CN115992309 A CN 115992309A CN 202211603512 A CN202211603512 A CN 202211603512A CN 115992309 A CN115992309 A CN 115992309A
Authority
CN
China
Prior art keywords
furnace
slab
tracking
temperature
plate blank
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.)
Pending
Application number
CN202211603512.8A
Other languages
Chinese (zh)
Inventor
袁伟
赵高建
洪达
徐振宇
范合合
张啸
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Iron and Steel Co Ltd
Original Assignee
Chongqing Iron and Steel Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chongqing Iron and Steel Co Ltd filed Critical Chongqing Iron and Steel Co Ltd
Priority to CN202211603512.8A priority Critical patent/CN115992309A/en
Publication of CN115992309A publication Critical patent/CN115992309A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

Landscapes

  • Heat Treatments In General, Especially Conveying And Cooling (AREA)

Abstract

The application provides a method and a system for tracking and controlling a plate blank in a furnace, comprising the following steps: controlling a walking beam of the heating furnace to act according to a preset tracking priority, wherein the tracking priority comprises a charging priority and a discharging priority; the method comprises the steps of determining the actual tapping temperature and the total tapping duration of a slab entering a furnace by acquiring the temperature and the residence time of the slab entering the furnace in a corresponding working section in a heating furnace; the hearth temperature of the corresponding working section of the in-furnace slab in the heating furnace is adjusted so that the deviation value of the actual discharging temperature of the in-furnace slab and the target discharging temperature is controlled within a preset range; and outputting a walking beam action completion signal to update the furnace position tracking image of the corresponding slab when the walking beam completes one-step action. The automatic tracking and control of the plate blank in the heating furnace can be realized, the dependence on manpower is reduced, the hit rate of the plate blank discharging temperature is improved, and the production stability is ensured.

Description

Method and system for tracking and controlling inner plate blank of furnace
Technical Field
The application relates to the field of intelligent production and application of steel, in particular to a tracking control method and system for inner plate blanks in a furnace.
Background
The tracking and picture mapping movement of the existing heating furnace plate blanks after entering the furnace are realized manually by operation, an operator judges the actual position of the furnace side plate blanks, and if the distance between the front edge of the plate blank at the furnace outlet side and the furnace outlet door is greater than the width of the current plate blank, the operator sets a walking beam to advance; stopping the walking beam to advance if the distance between the front edge of the slab at the discharging side and the discharging door is smaller than the width of the current slab; in the actual production process, the accident that the walking beam collides out of the furnace door after advancing is caused by large judgment deviation of the distance of operators for many times, and the stable and smooth production is affected.
Disclosure of Invention
In view of the problems in the prior art, the application provides a furnace inner plate blank tracking control method and a furnace inner plate blank tracking control system, which mainly solve the problems that the furnace inner plate blank tracking and control in the prior art is completely dependent on manual work, accidents are easy to cause and the production efficiency is influenced.
In order to achieve the above and other objects, the technical solutions adopted in the present application are as follows.
The application provides a tracking control method for an in-furnace plate blank, which comprises the following steps:
controlling a walking beam of the heating furnace to act according to a preset tracking priority, wherein the tracking priority comprises a charging priority and a discharging priority;
acquiring the temperature and the residence time of a corresponding working section of a plate blank entering a furnace in a heating furnace so as to determine the actual discharging temperature and the total furnace duration of the plate blank entering the furnace;
the hearth temperature of the corresponding working section of the in-furnace slab in the heating furnace is adjusted so that the deviation value of the actual discharging temperature of the in-furnace slab and the target discharging temperature is controlled within a preset range;
and outputting a walking beam action completion signal to update the furnace position tracking image of the corresponding slab when the walking beam completes one-step action.
In an embodiment of the present application, when the tracking priority is a charging priority, controlling the action of the walking beam of the heating furnace according to the preset tracking priority includes:
calculating a steel filling vacancy of the steel filling side of the heating furnace, and stopping the advancing action of the walking beam of the heating furnace if the steel filling vacancy is generated; and if the steel filling vacancy is not generated, controlling the walking beam of the heating furnace to advance.
In an embodiment of the present application, when the tracking priority is the tapping priority, controlling the action of the walking beam of the heating furnace according to the preset tracking priority includes:
acquiring the distance from the front edge of a slab nearest to the furnace outlet door of the heating furnace to the furnace outlet door;
if the distance is smaller than a preset distance threshold or the laser on the discharging side is detected to be bright, stopping the advancing action of the heating furnace walking beam;
and if the distance is greater than a preset distance threshold and the laser detection at the discharging side is not bright, controlling the walking beam of the heating furnace to advance.
In an embodiment of the present application, the calculating of the steel filling vacancy of the steel filling side of the heating furnace includes:
after each step of forward motion is executed by the heating furnace walking beam, the charging interval is calculated;
judging whether a steel loading gap is generated or not according to the loading interval, wherein the calculation mode of the loading interval comprises the following steps:
Val=d1-d2-d3-d4-d5
wherein Val is a charging interval, d1 is a distance from a discharging furnace door to an origin of a steel charging machine, d2 is a minimum charging distance, d3 is a slab width, d4 is a slab interval, d5 is a distance from the discharging furnace door to a trailing edge of a last charging slab in the furnace, d5=d6+d3, and d6 is a distance from a leading edge of the last charging slab to the discharging furnace door.
In an embodiment of the present application, determining whether to generate a steel loading vacancy according to the loading interval includes:
if Val is greater than 0, the charging side generates a steel charging vacancy, and if Val is less than 0, the charging side does not generate a steel charging vacancy.
In an embodiment of the present application, obtaining a temperature of a corresponding working section of a slab in a heating furnace includes:
before each step of action is executed by the walking beam, the information of the plate blank entering the furnace is obtained, wherein the information of the plate blank entering the furnace comprises: slab charging temperature, slab charging time, slab specification and target tapping temperature;
acquiring the hearth temperature of each working section according to a temperature detection unit preset in each working section in the heating furnace;
predicting the temperature of the furnace plate blank in the corresponding working section according to the furnace plate blank information, the hearth temperature of each working section and a preset temperature control model of the corresponding working section, wherein the working section comprises: the device comprises a heat recovery section, a preheating section, a heating section and a soaking section.
In one embodiment of the present application, outputting a walking beam motion completion signal to update an in-furnace position tracking map of a corresponding slab includes:
after receiving the walking beam action completion signal, acquiring a furnace plate blank entering state;
and updating the color display of the furnace position tracking map corresponding to the slab according to the mapping relation between the furnace plate blank entering state and the tracking map color.
In an embodiment of the present application, updating a color display of an in-furnace position tracking map of a corresponding slab according to a preset mapping relationship between a state of an in-furnace slab and a tracking map color, includes:
displaying the tracking image color of the last slab before changing the finish rolling working roll as green;
displaying the tracking image color of the slab with the furnace temperature lower than the preset temperature as blue;
displaying the tracking image color of the slab which is set to be discharged as black;
displaying the tracking image color of the slab which is in the heating furnace and is forbidden to tapping as dark gray;
the tracked image color of the slab with the slab length below the preset length is displayed as orange.
The application also provides a furnace inner slab tracking control system, comprising:
the step control module is used for controlling the action of a heating furnace step beam according to a preset tracking priority, wherein the tracking priority comprises a charging priority and a discharging priority;
the information acquisition module is used for acquiring the temperature and the residence time of the corresponding working section of the furnace plate blank in the heating furnace so as to determine the actual furnace outlet temperature and the total furnace duration of the furnace plate blank;
the temperature control module is used for adjusting the hearth temperature of the corresponding working section of the in-furnace plate blank in the heating furnace so as to control the deviation value of the actual discharging temperature of the in-furnace plate blank and the target discharging temperature within a preset range;
and the image updating module is used for outputting a walking beam action completion signal to update the furnace position tracking image of the corresponding slab when the walking beam completes one-step action.
As described above, the method and the system for tracking and controlling the inner plate blank of the furnace have the following beneficial effects.
According to the method, the walking beam of the heating furnace is controlled to act according to the preset tracking priority, wherein the tracking priority comprises charging priority and discharging priority; acquiring the temperature and the residence time of a corresponding working section of a plate blank entering a furnace in a heating furnace so as to determine the actual discharging temperature and the total furnace duration of the plate blank entering the furnace; the hearth temperature of the corresponding working section of the in-furnace slab in the heating furnace is adjusted so that the deviation value of the actual discharging temperature of the in-furnace slab and the target discharging temperature is controlled within a preset range; and outputting a walking beam action completion signal to update the furnace position tracking image of the corresponding slab when the walking beam completes one-step action. The automatic tracking and control of the slab in the furnace can be realized, the accident that the slab collides out of the furnace door due to the deviation of manual judgment is avoided, the stable and smooth production is effectively ensured, and the production efficiency is improved.
Drawings
FIG. 1 is a schematic flow chart of a method for tracking and controlling a green sheet in a furnace according to an embodiment of the present application.
FIG. 2 is a block diagram of a green sheet tracking control system in a furnace in accordance with one embodiment of the present application.
Detailed Description
Other advantages and effects of the present application will become apparent to those skilled in the art from the present disclosure, when the following description of the embodiments is taken in conjunction with the accompanying drawings. The present application may be embodied or carried out in other specific embodiments, and the details of the present application may be modified or changed from various points of view and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict.
It should be noted that, the illustrations provided in the following embodiments merely illustrate the basic concepts of the application by way of illustration, and only the components related to the application are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complex.
Referring to fig. 1, the present application provides a method for tracking and controlling a green sheet in a furnace, which includes the following steps.
And step S01, controlling the walking beam of the heating furnace to act according to a preset tracking priority, wherein the tracking priority comprises a charging priority and a discharging priority.
In one embodiment, at least two tracking control modes can be preset for selection by an operator according to actual production requirements, for example, the operator can select a steel loading side of the heating furnace as a reference to perform step control on the inner plate blank of the heating furnace, and can select a furnace discharging side of the heating furnace as a reference to perform step control on the inner plate blank of the heating furnace. The priorities of the two tracking control modes can be further set according to actual requirements of on-site production, so that slab tracking control is more flexible, and the requirements of different production conditions can be met.
In one embodiment, when the tracking priority is a charging priority, controlling the action of the walking beam of the heating furnace according to the preset tracking priority includes:
calculating a steel filling vacancy of the steel filling side of the heating furnace, and stopping the advancing action of the walking beam of the heating furnace if the steel filling vacancy is generated; and if the steel filling vacancy is not generated, controlling the walking beam of the heating furnace to advance.
In one embodiment, an operator sets the current heating furnace as a charging priority control mode, the tracking of the plate blank in the furnace is based on the charging side, and the control system automatically judges whether a steel charging vacancy is generated after the current heating furnace walking beam acts for one step.
In one embodiment, the steel loading vacancy calculation is performed on the steel loading side of the heating furnace, and the method comprises the following steps:
after each step of advancing action is executed by the walking beam, calculating a charging interval;
judging whether a steel loading gap is generated or not according to the loading interval, wherein the calculation mode of the loading interval comprises the following steps:
Val=d1-d2-d3-d4-d5
wherein Val is a charging interval, d1 is a distance from a discharging furnace door to an origin of a steel charging machine, d2 is a minimum charging distance, d3 is a slab width, d4 is a slab interval, d5 is a distance from the discharging furnace door to a trailing edge of a last charging slab in the furnace, d5=d6+d3, and d6 is a distance from a leading edge of the last charging slab to the discharging furnace door.
When Val is more than 0, judging that a steel filling vacancy is generated, stopping the forward motion setting of the walking beam, and stopping slab tracking and picture mapping; when Val is less than 0, it is determined that no steel filling vacancy is generated, the walking beam is automatically set to advance, and when the secondary system receives a walking beam action completion signal, the slab picture tracking image is automatically updated, so that the slab tracking and picture image automatic advance and retreat (the walking beam can be set manually) in the furnace are realized.
In an embodiment, when the tracking priority is the tapping priority, controlling the action of the walking beam of the heating furnace according to the preset tracking priority includes:
acquiring the distance from the front edge of a slab nearest to the furnace outlet door of the heating furnace to the furnace outlet door;
if the distance is smaller than a preset distance threshold or the laser on the discharging side is detected to be bright, stopping the advancing action of the heating furnace walking beam;
and if the distance is greater than a preset distance threshold and the laser detection at the discharging side is not bright, controlling the walking beam of the heating furnace to advance.
In one embodiment, an operator sets the current heating furnace as a furnace outlet priority control mode, whether a maximum steel loading vacancy is generated on a furnace loading side is not considered, furnace inner plate blank tracking is based on the furnace outlet side, when the current heating furnace is less than 1600mm away from a furnace outlet door from the front edge of a nearest plate blank from the furnace outlet door or the furnace outlet side is subjected to laser brightness detection, the forward action setting of a walking beam is automatically stopped, and plate blank tracking and picture image automatic stopping are performed; when the front edge of the nearest slab from the furnace outlet is more than 1600mm away from the furnace outlet and the laser detection at the furnace outlet side is not bright, the automatic advance of the walking beam is automatically set, and when the secondary system receives a walking beam action completion signal, the slab picture tracking image is automatically updated, so that the automatic advance and the automatic retreat of the slab tracking and picture image in the furnace are realized (the walking beam retreating is manually set). Of course, the specific distance threshold may be set according to actual production requirements, and is not limited herein.
And step S02, acquiring the temperature and the residence time of the corresponding working section of the in-furnace slab in the heating furnace so as to determine the actual discharging temperature and the total in-furnace duration of the in-furnace slab.
In one embodiment, after the operator selects the tracking control method according to the content of step S01, the slab entering the heating furnace may be tracked. And acquiring slab related information so as to track the temperature of the slab in the heating furnace, the furnace time length and the like, and automatically adjusting the temperature to realize the automatic control of the slab heating or cooling process.
In one embodiment, obtaining the temperature of the corresponding working section of the blank in the heating furnace comprises:
before each step of action is executed by the walking beam, the information of the plate blank entering the furnace is obtained, wherein the information of the plate blank entering the furnace comprises: slab charging temperature, slab charging time, slab specification and target tapping temperature;
acquiring the hearth temperature of each working section according to a temperature detection unit preset in each working section in the heating furnace;
predicting the temperature of the furnace plate blank in the corresponding working section according to the furnace plate blank information, the hearth temperature of each working section and a preset temperature control model of the corresponding working section, wherein the working section comprises: the device comprises a heat recovery section, a preheating section, a heating section and a soaking section.
And automatically recording the time of the heat recovery section, the preheating section, the heating section, the soaking section and the total furnace time of the plate blank after the plate blank is charged into the furnace according to the plate blank charging temperature, the charging time, the plate blank information, the target discharging temperature and the like. And detecting the temperature of the atmosphere in the furnace according to the thermocouples at each section in the furnace, and automatically calculating the real-time temperature of the inner plate blank in the furnace. Further, the real-time temperature value of the slab can be calculated according to the temperature control model of each working section in the heating furnace and the detection temperature of the thermocouple position.
And S03, adjusting the hearth temperature of the corresponding working section of the furnace-entering plate blank in the heating furnace so as to control the deviation value of the actual furnace-exiting temperature of the furnace-entering plate blank and the target furnace-exiting temperature within a preset range.
And comparing the real-time temperature value of the slab with a preset temperature value of a corresponding working section, judging whether the difference value of the real-time temperature value and the preset temperature value of the corresponding working section is within a set range, and adjusting the temperature of a hearth if the difference value is not within the set range, so that the control of the tapping temperature of the slab and the temperature rising process of the slab is ensured, the deviation between the actual tapping temperature and the target tapping temperature is less than +/-30 ℃, and the stability of the slab temperature during rolling of a rolling line is ensured. When an operator clicks the image of the plate blank in the furnace of the picture, the information of the plate blank such as the heat recovery section, the preheating section, the heating section, the soaking section time, the total furnace time, the target furnace discharging temperature, the average furnace discharging temperature and the like can be automatically displayed.
And step S04, outputting a walking beam action completion signal to update the furnace position tracking image of the corresponding slab when the walking beam completes one-step action.
In one embodiment, after each step of action is completed by the walking beam, the tracking image of the slab can be updated, real-time temperature of the slab is recorded in the tracking image, and information such as furnace time and the like is recorded.
In one embodiment, outputting a walking beam motion completion signal to update the in-furnace position tracking map of the corresponding slab includes:
after receiving the walking beam action completion signal, acquiring a furnace plate blank entering state;
and updating the color display of the furnace position tracking image of the corresponding plate blank according to the preset mapping relation between the furnace plate blank entering state and the tracking image color.
In an embodiment, in order to facilitate the operator to intuitively understand the state of the slab in the heating furnace, a mapping relationship may be established in advance for the tracking map color and the slab state, and corresponding colors may be displayed in the tracking map for different states of the slab.
In one embodiment, updating the color display of the in-furnace position tracking map of the corresponding slab according to the preset mapping relation between the in-furnace slab state and the tracking map color comprises:
displaying the tracking image color of the last slab before changing the finish rolling working roll as green;
displaying the tracking image color of the slab with the furnace temperature lower than the preset temperature as blue;
displaying the tracking image color of the slab which is set to be discharged as black;
displaying the tracking image color of the slab which is in the heating furnace and is forbidden to tapping as dark gray;
the tracked image color of the slab with the slab length below the preset length is displayed as orange.
In one embodiment, after the slab is charged into the furnace by the existing control method, the image colors of all slabs in the furnace are red, when the state of the slab in the furnace changes, the slab cannot be distinguished and judged in time, and the automatic color changing function of the slab in the furnace is added according to the state change:
(1) The last slab before roll changing in the rolling plan automatically changes the color of the slab into green;
(2) If the temperature of the plate blank entering the furnace is lower than 350 ℃, the color of the plate blank automatically changes into blue;
(3) If the state of the plate blank in the furnace is 38 (the second-stage setting plate blank of the heating furnace is discharged from the furnace), the color of the plate blank automatically changes to black;
(4) If the state of the slab in the furnace is 35 (the steel tapping is forbidden by the heating furnace in the furnace), the color of the slab automatically changes to dark gray;
(5) If the length of the plate blank entering the furnace is less than 6 meters (short blank), the color of the plate blank automatically changes to orange;
(6) If the slab is a short slab with the length of less than 6 meters, the color of the slab automatically changes to purple;
(7) The automatic color change expansion can be carried out according to the field requirements and the plate blank state.
Referring to fig. 2, the present embodiment further provides a furnace inner slab tracking control system, configured to execute the furnace inner slab tracking control method described in the foregoing method embodiment. Since the technical principle of the system embodiment is similar to that of the foregoing method embodiment, the same technical details will not be repeated.
In one embodiment of the present application, a furnace inner slab tracking control system includes: the step control module 10 is used for controlling the action of the heating furnace step beam according to a preset tracking priority, wherein the tracking priority comprises a charging priority and a discharging priority; the information acquisition module 11 is used for acquiring the temperature and the residence time of the corresponding working section of the in-furnace slab in the heating furnace so as to determine the actual out-furnace temperature and the total in-furnace duration of the in-furnace slab; the temperature control module 12 is used for adjusting the hearth temperature of the corresponding working section of the furnace plate blank in the heating furnace so as to control the deviation value of the actual furnace outlet temperature of the furnace plate blank and the target furnace outlet temperature within a preset range; and the image updating module 13 is used for outputting a walking beam action completion signal to update the furnace position tracking image of the corresponding slab when the walking beam completes one step action.
In summary, the method and the system for tracking and controlling the inner plate blank in the furnace automatically control the action of the walking beam of the heating furnace through preset conditions, realize the automatic control of the stepping action of the inner plate blank in the furnace, solve the problems that the labor intensity of operators is high and the operation is repeated due to the fact that the inner plate blank tracking and the picture mapping movement in the furnace are needed to be manually operated in the prior method, and solve the problems that the stable and smooth production is influenced by the fact that the walking beam is further bumped out of the furnace door before and after the deviation of the tapping distance is manually judged; the state of the inner plate blank of the furnace is visually reflected through the automatic color change display of the tracking image of the inner plate blank of the furnace, so that the problems that the state change judgment of the inner plate blank of the furnace is not timely or the state is difficult to distinguish are effectively solved; by recording the real-time temperature of the plate blank in the working section of the furnace and the time of the plate blank in the furnace in real time, the problem that the existing method lacks the statistics of the plate blank information in the furnace and the control of the discharging temperature completely depends on manpower is solved. Therefore, the method effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles of the present application and their effectiveness, and are not intended to limit the application. Modifications and variations may be made to the above-described embodiments by those of ordinary skill in the art without departing from the spirit and scope of the present application. Accordingly, it is intended that all equivalent modifications and variations which may be accomplished by persons skilled in the art without departing from the spirit and technical spirit of the disclosure be covered by the claims of this application.

Claims (9)

1. The method for tracking and controlling the inner plate blank of the furnace is characterized by comprising the following steps:
controlling a walking beam of the heating furnace to act according to a preset tracking priority, wherein the tracking priority comprises a charging priority and a discharging priority;
acquiring the temperature and the residence time of a corresponding working section of a plate blank entering a furnace in a heating furnace so as to determine the actual discharging temperature and the total furnace duration of the plate blank entering the furnace;
the hearth temperature of the corresponding working section of the in-furnace slab in the heating furnace is adjusted so that the deviation value of the actual discharging temperature of the in-furnace slab and the target discharging temperature is controlled within a preset range;
and outputting a walking beam action completion signal to update the furnace position tracking image of the corresponding slab when the walking beam completes one-step action.
2. The method according to claim 1, wherein when the tracking priority is a charging priority, the step of controlling the heating furnace walking beam according to a preset tracking priority comprises:
calculating a steel filling vacancy of the steel filling side of the heating furnace, and stopping the advancing action of the walking beam of the heating furnace if the steel filling vacancy is generated; and if the steel filling vacancy is not generated, controlling the walking beam of the heating furnace to advance.
3. The method according to claim 1, wherein when the tracking priority is a tapping priority, the step of controlling the heating furnace walking beam according to a preset tracking priority comprises:
acquiring the distance from the front edge of a slab nearest to the furnace outlet door of the heating furnace to the furnace outlet door;
if the distance is smaller than a preset distance threshold or the laser on the discharging side is detected to be bright, stopping the advancing action of the heating furnace walking beam;
and if the distance is greater than a preset distance threshold and the laser detection at the discharging side is not bright, controlling the walking beam of the heating furnace to advance.
4. The method according to claim 2, wherein the step of calculating the steel charging vacancy on the steel charging side of the heating furnace comprises:
after each step of forward motion is executed by the heating furnace walking beam, the charging interval is calculated;
judging whether a steel loading gap is generated or not according to the loading interval, wherein the calculation mode of the loading interval comprises the following steps:
Val=d1-d2-d3-d4-d5
wherein Val is a charging interval, d1 is a distance from a discharging furnace door to an origin of a steel charging machine, d2 is a minimum charging distance, d3 is a slab width, d4 is a slab interval, d5 is a distance from the discharging furnace door to a trailing edge of a last charging slab in the furnace, d5=d6+d3, and d6 is a distance from a leading edge of the last charging slab to the discharging furnace door.
5. The method according to claim 4, wherein determining whether or not a steel charge void is generated based on the charging interval comprises:
if Val is greater than 0, the charging side generates a steel charging vacancy, and if Val is less than 0, the charging side does not generate a steel charging vacancy.
6. The method for tracking and controlling the slab in the furnace according to claim 1, wherein the step of obtaining the temperature of the corresponding working section of the slab in the furnace comprises the steps of:
obtaining furnace plate blank entering information, wherein the furnace plate blank entering information comprises the following steps: slab charging temperature, slab charging time, slab specification and target tapping temperature;
acquiring the hearth temperature of each working section according to a temperature detection unit preset in each working section in the heating furnace;
predicting the temperature of the furnace plate blank in the corresponding working section according to the furnace plate blank information, the hearth temperature of each working section and a preset temperature control model of the corresponding working section, wherein the working section comprises: the device comprises a heat recovery section, a preheating section, a heating section and a soaking section.
7. The in-furnace slab tracking control method according to claim 1, wherein outputting a walking beam operation completion signal to update an in-furnace position tracking map of a corresponding slab, comprises:
after receiving the walking beam action completion signal, acquiring a furnace plate blank entering state;
and updating the color display of the furnace position tracking image of the corresponding plate blank according to the preset mapping relation between the furnace plate blank entering state and the tracking image color.
8. The method for controlling the tracking of the slab in the furnace according to claim 1, wherein updating the color display of the tracking map of the position in the furnace corresponding to the slab according to the preset mapping relation between the state of the slab entering the furnace and the color of the tracking map comprises:
displaying the tracking image color of the last slab before changing the finish rolling working roll as green;
displaying the tracking image color of the slab with the furnace temperature lower than the preset temperature as blue;
displaying the tracking image color of the slab which is set to be discharged as black;
displaying the tracking image color of the slab which is in the heating furnace and is forbidden to tapping as dark gray;
the tracked image color of the slab with the slab length below the preset length is displayed as orange.
9. A furnace inner slab tracking control system, comprising:
the step control module is used for controlling the action of a heating furnace step beam according to a preset tracking priority, wherein the tracking priority comprises a charging priority and a discharging priority;
the information acquisition module is used for acquiring the temperature and the residence time of the corresponding working section of the furnace plate blank in the heating furnace so as to determine the actual furnace outlet temperature and the total furnace duration of the furnace plate blank;
the temperature control module is used for adjusting the hearth temperature of the corresponding working section of the in-furnace plate blank in the heating furnace so as to control the deviation value of the actual discharging temperature of the in-furnace plate blank and the target discharging temperature within a preset range;
and the image updating module is used for outputting a walking beam action completion signal to update the furnace position tracking image of the corresponding slab when the walking beam completes one-step action.
CN202211603512.8A 2022-12-13 2022-12-13 Method and system for tracking and controlling inner plate blank of furnace Pending CN115992309A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211603512.8A CN115992309A (en) 2022-12-13 2022-12-13 Method and system for tracking and controlling inner plate blank of furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211603512.8A CN115992309A (en) 2022-12-13 2022-12-13 Method and system for tracking and controlling inner plate blank of furnace

Publications (1)

Publication Number Publication Date
CN115992309A true CN115992309A (en) 2023-04-21

Family

ID=85989774

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211603512.8A Pending CN115992309A (en) 2022-12-13 2022-12-13 Method and system for tracking and controlling inner plate blank of furnace

Country Status (1)

Country Link
CN (1) CN115992309A (en)

Similar Documents

Publication Publication Date Title
CN109062161B (en) Automatic tapping control system of reladling station
CN104392213B (en) A kind of image information state recognition system suitable for fusion process
CN110616288A (en) Full-automatic tapping method and system for converter
CN112017145B (en) Efficient automatic slag skimming method and system for molten iron pretreatment
CN108787749B (en) Hot rolling production plan early warning method
CN110747306A (en) Method, device and equipment for controlling slag overflow in converter tapping process and storage medium
CN113579188A (en) Method and system for detecting cutting of plate blank
CN102888505A (en) Control method for detection of slab in heating furnace
CN106607474B (en) The control method swung for straightener front spring
CN115992309A (en) Method and system for tracking and controlling inner plate blank of furnace
CN104531936A (en) On-line measure method for carbon content of molten steel in revolving furnace based on flame image characteristic
CN113102713A (en) Continuous casting and blank discharging method and system based on machine vision
CN116379765A (en) Automatic feeding control method and system, electronic equipment and storage medium
CN114309514A (en) System and method for hot feeding and hot charging integrated production of continuous casting steel billet
CN112458231B (en) Converter slag discharge detection method and system
CN113814367A (en) Continuous casting billet intelligent cutting sizing method based on visible light
CN115584375B (en) Automatic tapping method and system for converter based on image recognition
CN110032760B (en) Method for optimizing production organization of middle plate based on rolling line information sharing analysis system
CN115007653A (en) Automatic slab tapping control method and system
CN113009914A (en) Automatic walking control device and method for molten iron tank car
CN112461010B (en) Method, device and medium for reducing energy consumption of heating furnace to be rolled
CN219039592U (en) Slab tapping control device
CN219225802U (en) Furnace inner plate blank tracking display device
CN208322100U (en) Intelligent mucking machine
CN118341951A (en) Intelligent casting blank management and control system and method

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