CN114383424A - Roller way steel billet information tracking method of walking beam furnace - Google Patents
Roller way steel billet information tracking method of walking beam furnace Download PDFInfo
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- CN114383424A CN114383424A CN202111570841.2A CN202111570841A CN114383424A CN 114383424 A CN114383424 A CN 114383424A CN 202111570841 A CN202111570841 A CN 202111570841A CN 114383424 A CN114383424 A CN 114383424A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 172
- 239000010959 steel Substances 0.000 title claims abstract description 172
- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000002184 metal Substances 0.000 claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 claims abstract description 15
- 230000002159 abnormal effect Effects 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims description 46
- 238000001514 detection method Methods 0.000 claims description 45
- 238000009749 continuous casting Methods 0.000 claims description 36
- 230000000630 rising effect Effects 0.000 claims description 28
- 238000005096 rolling process Methods 0.000 claims description 17
- 238000007599 discharging Methods 0.000 claims description 9
- 238000010079 rubber tapping Methods 0.000 claims description 4
- 238000003860 storage Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
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- 238000011143 downstream manufacturing Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D2003/0001—Positioning the charge
- F27D2003/0002—Positioning the charge involving positioning devices, e.g. buffers, buffer zones
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D2003/0034—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities
- F27D2003/0059—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities comprising tracks, e.g. rails and wagon
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The invention relates to a method for tracking information of roller way steel billets of a walking beam furnace, which comprises the following steps: a pair of laser cold and hot metal detectors are respectively arranged at corresponding positions of the roller way; setting up a corresponding steel billet information queue for each roller way in the PLC system; and the billet information is moved into or out of the corresponding billet information queue by combining the signals of the laser cold and hot metal detectors at the corresponding positions with the positive and negative rotation signals of the corresponding roller ways, so that the billet information tracking under the normal or abnormal production working conditions is realized. By adopting the method, the full automation of the billet information tracking process can be realized, the labor cost is saved, and the product quantity error caused by manual counting error is reduced, so that the influence on the normal operation of an enterprise is avoided.
Description
Technical Field
The invention relates to the field of stepping heating furnaces in the metallurgical industry, in particular to a method for tracking information of roller way steel billets of a stepping heating furnace.
Background
A walking beam type heating furnace in the metallurgical industry is a gas combustion industrial furnace for keeping warm or heating a hot billet sent from a continuous casting or a cold billet in a billet storage to a rolling temperature of a subsequent rolling mill in a steel rolling process, and is called a walking beam type heating furnace because the billet is transferred forward one by the actions of rising, forward, descending and backward of a water-cooled metal beam provided at the bottom of the furnace. It has the advantages that: the material conveying is flexible, and all furnace burden can be discharged out of the furnace when necessary; the blanks are arranged on the furnace bottom or the beam at intervals, so that the blanks can be quickly and uniformly heated; the problems of arch steel and stick steel of other types of heating furnaces are completely eliminated, so that the furnace length design of the walking beam heating furnace is not limited by the problems.
The billet information tracking of the walking beam furnace has the following requirements:
1. the detection instrument for billet tracking outside the heating furnace is easily shielded by external interferents (personnel, pollutants and the like) or fails to work, so that the signal fails, and the deployment of the detection instrument needs to be redundant.
2. In the tracking process of the billet information, the problems of loss, time sequence error and the like of the billet information cannot occur. At the collecting roller way, the information tracking of cold loading and hot feeding of the steel billet cannot be disordered.
3. When the heating furnace is tracked in a furnace, the forward or backward signals of the walking beam and the walking distance may not be accurate, and the position of the steel billet cannot be completely determined according to the position of the steel billet accumulated by the walking distance.
4. Under abnormal production conditions, such as reverse charging (the billet discharged from the outlet of the heating furnace is returned into the heating furnace through roller way reversal), return in the furnace (the billet entering into the furnace from the inlet of the heating furnace is returned to the roller way of the furnace entering area through furnace entering cantilever roller reversal), billet lifting pin (the billet stopped on the roller way outside the furnace is lifted by crane and lifted into the intermediate billet warehouse), etc., the billet information tracking and the information sending of the upstream and downstream processes also need to be ensured to be correct.
Disclosure of Invention
The invention aims to provide a method for tracking information of a roller way steel billet of a walking beam furnace, which is used for meeting the requirement of tracking the information of the steel billet. Therefore, the invention adopts the following specific technical scheme:
a method for tracking information of roller way steel billets of a walking beam furnace can comprise the following steps:
respectively arranging a pair of laser cold and hot metal detectors at the inlet of a continuous casting hot conveying roller way, the position of a billet lifting pin roller way, the position of a convergence roller way where a rack cold charging roller way and the continuous casting hot conveying roller way are intersected, the inlet of a heating furnace and two sides of the same horizontal position at the outlet of the heating furnace, wherein the signals of the pair of laser cold and hot metal detectors arranged at the same position are combined into an in-place detection signal through OR operation;
setting up a corresponding steel billet information queue for each roller way in the PLC system, specifically, setting up a continuous casting hot steel billet conveying information queue for a continuous casting hot steel conveying roller way; setting a rack cold-charging steel billet information queue for the rack cold-charging roller bed; setting a furnace mouth area steel billet information queue from a roller way before the entrance of the heating furnace to a collecting roller way; setting a steel billet information queue of an in-furnace area for a walking beam in the walking beam type heating furnace; and
and moving the steel billet information into or out of the corresponding steel billet information queue by combining the in-place detection signal at the corresponding position with the forward and reverse rotation signals of the corresponding roller way, thereby realizing the steel billet information tracking under normal or abnormal production working conditions.
Further, the step of tracking the information of the steel billet in the normal production working condition comprises the following steps:
when an in-place detection signal rising edge signal at an inlet of a continuous casting hot conveying roller way is received and a continuous casting hot conveying roller way forward rotation signal is 1, acquiring billet information of a continuous casting baffle from a continuous casting process, and newly adding the billet information to the tail end of a continuous casting hot conveying billet information queue; when receiving the in-place detection signal rising edge signal at the collecting roller way and the forward rotation signals of the collecting roller way and the hot conveying roller way are 1, moving the first steel blank information at the head of the continuous casting hot conveying steel blank information queue out of the queue and moving the first steel blank information to the tail end of the steel blank information queue in the furnace mouth area;
when receiving an in-place detection signal rising edge signal at a steel billet lifting pin roller way, the rack cold-charging steel billet information queue acquires steel billet information from a cold-charging feeding process and adds the steel billet information to the tail end of the queue; when an in-place detection signal rising edge signal at the collecting roller way is received and forward rotation signals of the collecting roller way and the cold charging roller way are 1, moving the first steel blank information of the queue head of the rack cold charging steel blank information queue out of the queue and moving the first steel blank information to the queue end of the steel blank information queue in the furnace mouth area;
when an in-place detection signal rising edge signal at an inlet of the heating furnace is received and a forward rotation signal of the cantilever roller entering the furnace is 1, moving first steel blank information at the head of a steel blank information queue at a furnace opening area out of the queue and moving the first steel blank information to the tail end of the steel blank information queue at the furnace area;
and when the in-place detection signal rising edge signal at the outlet of the heating furnace is received and the forward rotation signal of the tapping cantilever roller is 1, the first steel billet information in the steel billet information queue in the furnace is moved out of the queue and sent to the subsequent steel rolling process.
Further, the step of tracking the information of the steel billet under the abnormal production working condition comprises the following steps:
when an in-place detection signal rising edge signal at the outlet of the heating furnace is received and a reverse signal of a discharging cantilever roller is 1, the last steel billet information of a subsequent steel rolling process is moved to the first queue of a regional steel billet information queue in the furnace, a discharging reverse-installation signal is sent to a steel rolling PLC system, and the steel rolling PLC system is informed to cancel the discharging record of the steel billet;
when an in-place detection signal rising edge signal at an inlet of the heating furnace is received and a reversal signal of the cantilever roller entering the furnace is 1, the last steel billet information in the tail of a steel billet information queue in the furnace is moved out of the queue and moved to the first steel billet information queue in the head of the steel billet information queue at the furnace mouth;
when receiving an in-place detection signal rising edge signal at the collecting roller way and the reversal signals of the collecting roller way and the rack cold-charging roller way are 1, moving the last steel billet information queue in the furnace mouth area out of the queue and moving the last steel billet information queue to the first steel billet information queue in the rack cold-charging roller way;
and when receiving the falling edge signal of the in-place detection signal at the collecting roller way and no running signal of the collecting roller way and the cold-charging roller way, moving the last steel billet information queue at the end of the furnace mouth area out of the queue, and sending the steel billet information to a steel billet storage tube system.
Further, the laser cold and hot metal detector with the corresponding roller way rotating and the signal being 1 for a long time is judged to be blocked, an alarm is given, and the output signal is forcibly changed into 0.
By adopting the technical scheme, the invention has the beneficial effects that:
1. the steel billet information tracking process is full-automatic, the labor cost is saved, and the product quantity error caused by manual statistics error is reduced, so that the influence on the normal operation of an enterprise is avoided.
2. By deploying redundant equipment for the same detection point, normal operation can be continued when one detection device fails or is shielded.
3. When the heating furnace is normal and abnormal in production, the billet tracking information can be ensured to be accurate.
Drawings
To further illustrate the various embodiments, the invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. Those skilled in the art will appreciate still other possible embodiments and advantages of the present invention with reference to these figures. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.
FIG. 1 is a flow chart of a method for tracking information of a roller way billet of a walking beam furnace according to the present invention;
FIG. 2 is a schematic deployment of the laser cold and hot metal detector of the present invention.
Detailed Description
It is to be noted that the experimental methods described in the following embodiments are all conventional methods unless otherwise specified, and the reagents and materials, if not otherwise specified, are commercially available; in the description of the present application, the terms "lateral," "longitudinal," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like refer to orientations or positional relationships that are based on the orientation shown in the drawings, are used for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be considered as limiting the present invention.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
The invention will now be further described with reference to the accompanying drawings and detailed description.
As shown in fig. 1 and 2, a method for tracking information of a roller way billet of a walking beam furnace may include the following steps:
100. a pair of laser cold and hot metal detectors 1 are respectively arranged at corresponding positions of the roller way. Specifically, a pair of laser cold and hot metal detectors 1 are respectively arranged at the inlet of a continuous casting hot conveying roller way, the position of a billet lifting pin roller way, the position of a collecting roller way where a rack cold loading roller way and the continuous casting hot conveying roller way are intersected, the inlet of a heating furnace and two sides of the same horizontal position at the outlet of the heating furnace. It should be noted that the above-mentioned purpose of using a pair of laser cold and hot metal detectors on both sides of the same detection position is to prevent the problem that the billet cannot be identified due to one side being blocked by an external blocking object, and also to prevent the problem that the billet cannot be identified due to one of the laser cold and hot metal detectors being damaged. In addition, the signals of a pair of laser cold and hot metal detectors arranged at the same position are combined into a single in-place detection signal through an OR operation. In addition, the hot metal detector which rotates corresponding to the roller way and has a long-time signal of 1 is judged to be blocked, an alarm is given, and the output signal of the hot metal detector is forcibly changed to 0 so as to execute the subsequent billet identification process. The laser cold and hot metal detector 1 is commercially available, for example, a feedback reflection type cold and hot metal detector of KJT series, and the specific model can be selected according to actual needs.
200. Setting up a corresponding steel billet information queue for each roller way in the PLC system, specifically, setting up a continuous casting hot steel billet conveying information queue for a continuous casting hot steel conveying roller way; setting a rack cold-charging steel billet information queue for the rack cold-charging roller bed; setting a furnace mouth area steel billet information queue from a roller way before the entrance of the heating furnace to a collecting roller way; and setting up a zone steel billet information queue in the furnace for the walking beam in the walking beam type heating furnace.
300. And moving the steel billet information into or out of the corresponding steel billet information queue by combining the in-place detection signal at the corresponding position with the forward and reverse rotation signals of the corresponding roller way, thereby realizing the steel billet information tracking under normal or abnormal production working conditions.
During normal production, all roller ways rotate forwards, and steel billets are conveyed into the heating furnace from continuous casting through hot conveying roller ways and through a collecting roller way, or conveyed into the heating furnace from a cold-loading rack through a cold-loading roller way and through a collecting roller way, so that during normal production, the following steel billet information tracking steps are adopted:
step 1, when an in-place detection signal rising edge signal at an inlet of a continuous casting hot conveying roller way is received and a forward rotation signal of the continuous casting hot conveying roller way is 1, acquiring billet information of a continuous casting baffle from a continuous casting process and adding the billet information to the tail end of a continuous casting hot conveying billet information queue; when receiving the in-place detection signal rising edge signal at the collecting roller way and the forward rotation signals of the collecting roller way and the hot conveying roller way are 1, moving the first steel blank information at the head of the continuous casting hot conveying steel blank information queue out of the queue and moving the first steel blank information to the tail end of the steel blank information queue in the furnace mouth area; when receiving an in-place detection signal rising edge signal at a steel billet lifting pin roller way, the rack cold-charging steel billet information queue acquires steel billet information from a cold-charging feeding process and adds the steel billet information to the tail end of the queue; and when the in-place detection signal rising edge signal at the collecting roller way is received and the forward rotation signals of the collecting roller way and the cold charging roller way are 1, moving the first steel blank information at the head of the rack cold charging steel blank information queue out of the queue and moving the first steel blank information to the tail end of the steel blank information queue in the furnace mouth area. Namely, the method for tracking the steel billet information on the continuous casting hot-feeding roller way and the rack cold-feeding roller way before the convergence roller way where the rack cold-charging roller way and the continuous casting hot-feeding roller way are intersected adopts a double-queue information tracking method, so that the steel billet information on the two roller ways (the continuous casting hot-feeding roller way and the cold-charging roller way) is ensured not to be interfered by other detection error signals on the roller ways.
And 2, when receiving an in-place detection signal rising edge signal at the entrance of the heating furnace and a forward rotation signal of the furnace entering cantilever roller is 1, moving the first billet information at the head of the steel billet information queue at the furnace mouth area out of the queue and moving the first billet information to the tail end of the steel billet information queue at the furnace area. The method is characterized in that a single queue information tracking method is adopted for tracking the billet information from the roller way to the collecting roller way before the entrance of the heating furnace, so that the billet information in the range of the roller way is not interfered by other detection error signals on the roller way.
And 3, when the in-place detection signal rising edge signal at the outlet of the heating furnace is received and the forward rotation signal of the tapping cantilever roller is 1, moving the first steel blank information at the head of the steel blank information queue in the furnace out of the queue and sending the first steel blank information to the subsequent steel rolling process. In other words, a single queue information tracking method is adopted for tracking the billet information on the walking beam in the walking beam type heating furnace, so that the billet information in the furnace is ensured not to be interfered by a walking beam forward or backward error signal.
Through the three steps, the steel billet information is sent to the subsequent steel rolling process from the cold loading rack and the continuous casting process after being tracked by the roller way and the heating furnace, and the forward tracking of the full-flow information of the steel billet is realized.
In addition to the forward tracking of the normal production working condition, because of the quality problems of the steel billet (such as bending and cracking), the steel billet can be retreated to a steel billet lifting pin roller way through the reverse rotation of each roller way and the stepping retreating operation of a heating furnace walking beam and is lifted away by a crown block; or the steel tapping temperature of the heating furnace does not meet the requirements of the subsequent steel rolling process, and the steel is returned to the heating furnace from the outside of the furnace to be continuously heated. And under the abnormal production working condition, the following steel billet information tracking steps are adopted:
And 2, when receiving a rising edge signal of an in-place detection signal at the inlet of the heating furnace and a reversal signal of the cantilever roller entering the furnace is 1, moving the last steel blank information of the queue out of the queue and moving the last steel blank information of the queue to the first queue of the steel blank information queue in the area of the furnace opening.
And 3, because the rack cold charging roller way and the roller way in the furnace mouth area are straight and the two roller ways are aligned, the billet in the furnace mouth area can only be retreated onto the rack cold charging roller way when retreating. Therefore, when the in-place detection signal rising edge signal at the collecting roller way is received and the reversal signal of the cold-charging roller way of the collecting roller way is 1, the last queue of the steel billet information queue in the furnace mouth area is moved out of the queue, and the last queue of the cold-charging steel billet information queue of the rack is moved to the first queue of the cold-charging steel billet information queue of the rack.
And 4, a steel billet lifting pin roller way, namely a falling roller way of the rack steel tilting machine, is a first section roller way of the cold-charging roller way, and the corresponding steel billet is the last steel billet of the cold-charging steel billet information queue of the rack. When receiving the falling edge signal of the in-place detection signal at the collecting roller way and no-operation signals of the collecting roller way and the cold-charging roller way, judging that the steel billet is hung away by the crown block, moving the last steel billet information queue of the furnace mouth area out of the queue, and sending the steel billet information to a steel billet warehouse pipe system of crown block logistics.
Compared with the prior art, the invention has the following main advantages:
1. the steel billet information tracking process is full-automatic, the labor cost is saved, and the product quantity error caused by manual statistics error is reduced, so that the influence on the normal operation of an enterprise is avoided.
2. By deploying redundant equipment for the same detection point, normal operation can be continued when one detection device fails or is shielded.
3. When the heating furnace is normal and abnormal in production, the billet tracking information can be ensured to be accurate.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (4)
1. A method for tracking information of roller way steel billets of a walking beam furnace is characterized by comprising the following steps:
respectively arranging a pair of laser cold and hot metal detectors at the inlet of a continuous casting hot conveying roller way, the steel billet lifting pin roller way, the convergence roller way where a rack cold loading roller way and the continuous casting hot conveying roller way are intersected, the inlet of a heating furnace and two sides of the same horizontal position at the outlet of the heating furnace, wherein the laser cold and hot metal detectors are electrically connected with a PLC system, and signals of the pair of laser cold and hot metal detectors arranged at the same position are combined into an in-place detection signal through OR operation;
setting up a corresponding steel billet information queue for each roller way in the PLC system, specifically, setting up a continuous casting hot steel billet conveying information queue for a continuous casting hot steel conveying roller way; setting a rack cold-charging steel billet information queue for the rack cold-charging roller bed; setting a furnace mouth area steel billet information queue from a roller way before the entrance of the heating furnace to a collecting roller way; setting a steel billet information queue of an in-furnace area for a walking beam in the walking beam type heating furnace; and
and moving the steel billet information into or out of the corresponding steel billet information queue by combining the in-place detection signal at the corresponding position with the forward and reverse rotation signals of the corresponding roller way, thereby realizing the steel billet information tracking under normal or abnormal production working conditions.
2. The method for tracking information of a roller bed slab of a walking beam furnace as set forth in claim 1, wherein the step of tracking information of a slab in a normal production condition includes:
when an in-place detection signal rising edge signal at an inlet of a continuous casting hot conveying roller way is received and a continuous casting hot conveying roller way forward rotation signal is 1, acquiring billet information of a continuous casting baffle from a continuous casting process, and newly adding the billet information to the tail end of a continuous casting hot conveying billet information queue; when receiving the in-place detection signal rising edge signal at the collecting roller way and the forward rotation signals of the collecting roller way and the hot conveying roller way are 1, moving the first steel blank information at the head of the continuous casting hot conveying steel blank information queue out of the queue and moving the first steel blank information to the tail end of the steel blank information queue in the furnace mouth area;
when receiving an in-place detection signal rising edge signal at a steel billet lifting pin roller way, the rack cold-charging steel billet information queue acquires steel billet information from a cold-charging feeding process and adds the steel billet information to the tail end of the queue; when an in-place detection signal rising edge signal at the collecting roller way is received and forward rotation signals of the collecting roller way and the cold charging roller way are 1, moving the first steel blank information of the queue head of the rack cold charging steel blank information queue out of the queue and moving the first steel blank information to the queue end of the steel blank information queue in the furnace mouth area;
when an in-place detection signal rising edge signal at an inlet of the heating furnace is received and a forward rotation signal of the cantilever roller entering the furnace is 1, moving first steel blank information at the head of a steel blank information queue at a furnace opening area out of the queue and moving the first steel blank information to the tail end of the steel blank information queue at the furnace area;
and when the in-place detection signal rising edge signal at the outlet of the heating furnace is received and the forward rotation signal of the tapping cantilever roller is 1, the first steel billet information in the steel billet information queue in the furnace is moved out of the queue and sent to the subsequent steel rolling process.
3. The method for tracking information on a steel slab on a roller bed of a walking beam furnace according to claim 1 or 2, wherein the step of tracking information on a steel slab under an abnormal production condition comprises:
when an in-place detection signal rising edge signal at the outlet of the heating furnace is received and a reverse signal of a discharging cantilever roller is 1, the last steel billet information of a subsequent steel rolling process is moved to the first queue of a regional steel billet information queue in the furnace, a discharging reverse-installation signal is sent to a steel rolling PLC system, and the steel rolling PLC system is informed to cancel the discharging record of the steel billet;
when an in-place detection signal rising edge signal at an inlet of the heating furnace is received and a reversal signal of the cantilever roller entering the furnace is 1, the last steel billet information in the tail of a steel billet information queue in the furnace is moved out of the queue and moved to the first steel billet information queue in the head of the steel billet information queue at the furnace mouth;
when receiving an in-place detection signal rising edge signal at the collecting roller way and the reversal signals of the collecting roller way and the rack cold-charging roller way are 1, moving the last steel billet information queue in the furnace mouth area out of the queue and moving the last steel billet information queue to the first steel billet information queue in the rack cold-charging roller way;
and when receiving the falling edge signal of the in-place detection signal at the collecting roller way and no running signal of the collecting roller way and the cold-charging roller way, moving the last steel billet information queue at the end of the furnace mouth area out of the queue, and sending the steel billet information to a steel billet storage tube system.
4. The method for tracking information on a roller way slab of a walking beam furnace according to claim 1,
and judging that the laser cold and hot metal detector with the corresponding roller way rotating and the signal of 1 for a long time is blocked, alarming and forcibly changing the output signal of the detector into 0.
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| CN202111570841.2A CN114383424B (en) | 2021-12-21 | 2021-12-21 | Roller way billet information tracking method of step heating furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114951581A (en) * | 2022-06-30 | 2022-08-30 | 山东钢铁集团永锋临港有限公司 | Automatic control method for hot delivery of small square billets |
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| CN114951581B (en) * | 2022-06-30 | 2023-08-15 | 山东钢铁集团永锋临港有限公司 | Automatic control method for hot conveying of small square billets |
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