CN114850228B - Control method and system for conveying steel billets to rolling mill by heating furnace - Google Patents
Control method and system for conveying steel billets to rolling mill by heating furnace Download PDFInfo
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- CN114850228B CN114850228B CN202210449626.5A CN202210449626A CN114850228B CN 114850228 B CN114850228 B CN 114850228B CN 202210449626 A CN202210449626 A CN 202210449626A CN 114850228 B CN114850228 B CN 114850228B
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- 238000005096 rolling process Methods 0.000 title claims abstract description 219
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 100
- 239000010959 steel Substances 0.000 title claims abstract description 100
- 238000010438 heat treatment Methods 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000001514 detection method Methods 0.000 claims abstract description 132
- 238000007599 discharging Methods 0.000 claims abstract description 88
- 238000010079 rubber tapping Methods 0.000 claims description 149
- 238000012545 processing Methods 0.000 claims description 85
- 238000013459 approach Methods 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 4
- 230000003111 delayed effect Effects 0.000 claims 1
- 238000005299 abrasion Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 description 17
- 230000002035 prolonged effect Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000029087 digestion Effects 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
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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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Control Of Metal Rolling (AREA)
Abstract
The embodiment of the invention provides a control method and a control system for conveying billets to a rolling mill by a heating furnace, and relates to the field of billet rolling equipment. Aims to solve the problem that the roller way is seriously worn after the billet is bitten into the rolling mill. The method comprises the following steps of obtaining a first detection signal representing the condition of a steel billet at a first preset position; acquiring a second detection signal representing the condition of the steel billet at a second preset position; obtaining a biting steel signal representing biting conditions of a billet rolling mill; and controlling the speeds of the cantilever roller, the first discharging roller way and the second discharging roller way according to the acquired signals. The furnace delivery billet to mill system includes a controller for performing the furnace delivery billet to mill control method. The first discharging roller way and the second discharging roller way are separately arranged, the speed can be independently controlled, after a billet is bitten into the rolling mill, the speed of the second discharging roller way can be adjusted to be low, the abrasion degree of the second discharging roller way and the billet can be reduced, and meanwhile, the first discharging roller way does not influence the conveying of the subsequent billet.
Description
Technical Field
The invention relates to the field of billet rolling equipment, in particular to a control method and a control system for conveying billets to a rolling mill by a heating furnace.
Background
In a steel production workshop, a heating furnace heats a steel billet until the rolling condition is reached, and then the steel billet is sent out of the heating furnace by a cantilever roller. The cantilever roller is provided with a tapping roller way in parallel, and the tapping roller way is used for continuously conveying billets to the rolling mill after the cantilever roller. The cantilever roller needs to run at a high speed to drive the billet to be discharged from the furnace through the friction force of the roller surface, and larger impact force is needed to realize smooth biting of the billet into the rolling mill when the billet is bitten into the rolling mill.
In the prior art, the defects are as follows:
the method comprises the following steps: the cantilever roller and the tapping roller way are rotated at a high speed to convey the steel billet, the steel billet inevitably generates larger impact force, and the rolling mill runs unstably under the impact force for a long time, so that a transmission gear box of the rolling mill runs; most of transmission shafts adopt cross-shaped package universal shafts, and the failure rate is always high; particularly, the rolling mill stand is always in a loose and swaying state when bearing long-term impact, which is not beneficial to stable production.
And two,: to smoothly bite the billet into the rolling mill, the rotation speeds of the tapping roller way and the cantilever roller must be larger than those of the rolling mill, and enough energy is required to ensure that the billet is smoothly bitten into the rolling mill. After the billet is bitten into the rolling mill, the tapping roller rotating higher than the rolling mill and the billet are always in a friction state, the surface layer of the tapping roller has extremely high abrasion speed, and the tapping roller must be replaced at the shortest of 2 months; although the tapping roller has been replaced by wear resistant material, the service life is only 3 months.
Disclosure of Invention
The invention aims to provide a control method for conveying billets to a rolling mill by a heating furnace, which can solve the problem that the billets are seriously worn on a roller way after being bitten into the rolling mill.
The invention also aims to provide a heating furnace for conveying billets to a rolling mill system, which can solve the problem that the billets are seriously worn on a roller way after being bitten into the rolling mill.
Embodiments of the invention may be implemented as follows:
the embodiment of the invention provides a control method for conveying billets to a rolling mill by a heating furnace, which comprises the following steps of:
acquiring a first detection signal representing the condition of a steel billet at a first preset position of conveying processing equipment;
acquiring a second detection signal representing the condition of the steel billet at a second preset position of the conveying processing equipment;
obtaining a biting steel signal representing biting conditions of a billet rolling mill;
controlling the speeds of the cantilever roller, the first discharging roller way and the second discharging roller way according to the first detection signal, the second detection signal and the steel biting signal so as to enable billets to bite into a rolling mill at a high speed and then to enter the rolling mill at a reduced speed;
the conveying processing equipment comprises a cantilever roller, a first discharging roller way, a second discharging roller way and a rolling mill which are sequentially arranged along the conveying direction, wherein a first preset position and a second preset position are sequentially arranged along the conveying direction.
In addition, the control method for conveying billets to the rolling mill by the heating furnace provided by the embodiment of the invention can also have the following additional technical characteristics:
optionally, the step of obtaining a bite signal indicative of a bite of the billet mill comprises:
the steel biting signal is a fifth signal representing biting of a billet into the rolling mill;
the step of controlling the speeds of the cantilever roller, the first discharging roller way and the second discharging roller way according to the first detection signal, the second detection signal and the steel biting signal so that billets bite into the rolling mill at a high speed and then enter the rolling mill at a reduced speed comprises the following steps:
and controlling the second tapping roller way to decelerate according to the fifth signal.
Optionally, the step of obtaining a first detection signal indicative of a condition of the steel billet at a first preset position of the conveying and processing device includes:
the first detection signal is a first signal representing that a billet exists at a first preset position on the conveying and processing equipment;
the step of obtaining a second detection signal representing the condition of the steel billet at a second preset position of the conveying and processing equipment comprises the following steps:
the second detection signal is a fourth signal representing that no billet exists at a second preset position on the conveying and processing equipment;
The step of controlling the speeds of the cantilever roller, the first discharging roller way and the second discharging roller way according to the first detection signal, the second detection signal and the steel biting signal so that billets bite into the rolling mill at a high speed and then enter the rolling mill at a reduced speed comprises the following steps:
and controlling the first discharging roller way to start and run at a high speed according to the first signal and the fourth signal, and enabling the speed of the first discharging roller way to be higher than that of the second discharging roller way.
Optionally, the step of obtaining a first detection signal indicative of a condition of the steel billet at a first preset position of the conveying and processing device includes:
the first detection signal is a first signal representing that a billet exists at a first preset position on the conveying and processing equipment;
the step of obtaining a second detection signal representing the condition of the steel billet at a second preset position of the conveying and processing equipment comprises the following steps:
the second detection signal is a fourth signal representing that no billet exists at a second preset position on the conveying and processing equipment;
the step of obtaining the biting steel signal representing the biting condition of the billet rolling mill comprises the following steps:
the biting steel signal is a sixth signal representing that the billet is not bitten into the rolling mill;
The step of controlling the speeds of the cantilever roller, the first discharging roller way and the second discharging roller way according to the first detection signal, the second detection signal and the steel biting signal so that billets bite into the rolling mill at a high speed and then enter the rolling mill at a reduced speed comprises the following steps:
and controlling the second tapping roller way to speed up and run at a high speed according to the first signal, the fourth signal and the sixth signal, and enabling the speed of the second tapping roller way to approach the speed of the first tapping roller way.
Optionally, the step of controlling the second tapping roller way to speed up and run at a high speed according to the first signal, the fourth signal and the sixth signal, and making the speed of the second tapping roller way approach to the speed of the first tapping roller way includes:
and after a delay time is preset, controlling the second tapping roller way to operate at a high height.
Optionally, the step of obtaining a first detection signal indicative of a condition of the steel billet at a first preset position of the conveying and processing device includes:
the first detection signal is a first signal representing that a billet exists at a first preset position on the conveying and processing equipment;
the step of obtaining a second detection signal representing the condition of the steel billet at a second preset position of the conveying and processing equipment comprises the following steps:
The second detection signal is a third signal representing that a billet exists at a second preset position on the conveying and processing equipment;
the step of obtaining the biting steel signal representing the biting condition of the billet rolling mill comprises the following steps:
the steel biting signal is a fifth signal representing biting of a billet into the rolling mill;
the step of controlling the speeds of the cantilever roller, the first discharging roller way and the second discharging roller way according to the first detection signal, the second detection signal and the steel biting signal so that billets bite into the rolling mill at a high speed and then enter the rolling mill at a reduced speed comprises the following steps:
and controlling the cantilever roller and the first discharging roller way to stop according to the first signal, the third signal and the fifth signal until the second detection signal is a fourth signal representing no billet at a second preset position on the conveying processing equipment, and controlling the first discharging roller way to start and operate at a high speed.
Optionally, the step of obtaining a bite signal indicative of a bite of the billet mill comprises:
the steel biting signals comprise two fifth signals representing the continuous appearance of a preset interval period, wherein the fifth signals represent the biting of a billet into a rolling mill;
the step of controlling the speeds of the cantilever roller, the first discharging roller way and the second discharging roller way according to the first detection signal, the second detection signal and the steel biting signal so that billets bite into the rolling mill at a high speed and then enter the rolling mill at a reduced speed comprises the following steps:
And controlling the cantilever roller and the first discharging roller way to stop according to a fifth signal representing that two billets bite into the rolling mill continuously appear in a preset interval period until the second detection signal is a fourth signal representing that no billets exist at a second preset position on conveying processing equipment, and controlling the first discharging roller way to start and operate at a high speed.
Optionally, the steel billet is a production-restoring debugging steel billet;
the step of obtaining a first detection signal representing the condition of the steel billet at a first preset position of the conveying and processing equipment comprises the following steps:
the first detection signal is a second signal representing that no billet exists at a first preset position on the conveying and processing equipment;
the step of obtaining a second detection signal representing the condition of the steel billet at a second preset position of the conveying and processing equipment comprises the following steps:
the second detection signal is a third signal representing that a billet exists at a second preset position on the conveying and processing equipment;
the step of obtaining the biting steel signal representing the biting condition of the billet rolling mill comprises the following steps:
the steel biting signal is a fifth signal representing biting of a billet into the rolling mill;
the step of controlling the speeds of the cantilever roller, the first discharging roller way and the second discharging roller way according to the first detection signal, the second detection signal and the steel biting signal so that billets bite into the rolling mill at a high speed and then enter the rolling mill at a reduced speed comprises the following steps:
And controlling the first discharging roller way and the second discharging roller way to stop according to the second signal, the third signal and the fifth signal.
Optionally, the step of obtaining a first detection signal indicative of a condition of the steel billet at a first preset position of the conveying and processing device includes:
the first detection signal is a first signal representing that a billet exists at a first preset position on the conveying and processing equipment;
the step of obtaining a second detection signal representing the condition of the steel billet at a second preset position of the conveying and processing equipment comprises the following steps:
the second detection signal is a fourth signal representing that no billet exists at a second preset position on the conveying and processing equipment;
the step of obtaining the biting steel signal representing the biting condition of the billet rolling mill comprises the following steps:
the biting steel signal is a seventh signal representing broken steel billets of the rolling mill;
the step of controlling the speeds of the cantilever roller, the first discharging roller way and the second discharging roller way according to the first detection signal, the second detection signal and the steel biting signal so that billets bite into the rolling mill at a high speed and then enter the rolling mill at a reduced speed comprises the following steps:
and controlling the cantilever roller and the first tapping roller way to start and rotate according to the first signal, the fourth signal and the seventh signal so as to retract the billet.
The embodiment of the invention also provides a heating furnace for conveying steel billets to a rolling mill system, which comprises conveying processing equipment, a first detector, a second detector and a controller; the conveying processing equipment comprises a cantilever roller, a first discharging roller way, a second discharging roller way and a rolling mill which are sequentially arranged along the conveying direction, wherein the first preset position and the second preset position are sequentially arranged along the conveying direction, and the cantilever roller, the first discharging roller way and the second discharging roller way are communicated with the controller; the first detector is arranged at a first preset position and is communicated with the controller; the second detector is arranged at a second preset position and is communicated with the controller; the controller is used for executing a control method for conveying billets to the rolling mill by the heating furnace.
Optionally, the rolling mill is provided with a biting inlet, the horizontal height of the biting inlet relative to the ground is higher than that of the second tapping roller table, and the height difference is more than or equal to 5mm.
Optionally, the furnace delivery billet to mill system further comprises an inlet channel disposed between the second tapping roller way and the bite of the mill.
The control method and the control system for the heating furnace to convey billets to the rolling mill have the beneficial effects that:
the control method for conveying billets to a rolling mill by a heating furnace comprises the following steps: acquiring a first detection signal representing the condition of a steel billet at a first preset position of conveying processing equipment; acquiring a second detection signal representing the condition of the steel billet at a second preset position of the conveying processing equipment; obtaining a biting steel signal representing biting conditions of a billet rolling mill; according to the first detection signal, the second detection signal and the steel biting signal, controlling the speeds of the cantilever roller, the first discharging roller way and the second discharging roller way so as to enable the billet to bite into the rolling mill at a high speed and then to enter the rolling mill at a reduced speed; the conveying processing equipment comprises a cantilever roller, a first discharging roller way, a second discharging roller way and a rolling mill which are sequentially arranged along the conveying direction, and a first preset position and a second preset position are sequentially arranged along the conveying direction.
The first discharging roller way and the second discharging roller way are arranged separately, the speed can be controlled independently, after a billet is bitten into a rolling mill, the rotating speed of the second discharging roller way is matched with the rotating speed of the rolling mill or the rolling mill stops running, the billet is dragged by the rolling mill, the billet drives the second discharging roller way to run at a constant speed, the wear degree of the second discharging roller way and the billet can be reduced, the service lives of the first discharging roller way and the second discharging roller way can be prolonged to more than 12 months under the same production condition, and the service lives of the first discharging roller way and the second discharging roller way are prolonged; meanwhile, the speed of the first discharging roller way is not influenced by the speed of the second discharging roller way, and subsequent conveying of billets can be continuously completed. Not only can the connection problem be effectively solved, but also the service life of the roller way can be prolonged. In addition, the steel billet is decelerated after being bitten into the rolling mill, so that huge impact force of the steel billet bitten into the rolling mill on a rolling unit can be reduced, and the stability of normal operation of the rolling mill is improved.
The heating furnace conveys billets to a rolling mill system, and comprises conveying processing equipment, a first detector, a second detector and a controller; the controller is used for executing the control method for conveying the billet to the rolling mill by the heating furnace. The problem that the roller way is seriously worn after the billet is bitten into the rolling mill can be solved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is an overall block diagram of a control method for a heating furnace to deliver billets to a rolling mill according to an embodiment of the present invention;
FIG. 2 is a schematic block diagram of step S1 in a control method for conveying billets to a rolling mill by a heating furnace according to an embodiment of the present invention;
FIG. 3 is a schematic block diagram of step S2 in a control method for conveying billets to a rolling mill by a heating furnace according to an embodiment of the present invention;
FIG. 4 is a schematic block diagram of step S3 in a control method for conveying billets to a rolling mill by a heating furnace according to an embodiment of the present invention;
FIG. 5 is a schematic block diagram of step S4 in a control method for conveying billets to a rolling mill by a heating furnace according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a heating furnace for transporting billets to a rolling mill system according to an embodiment of the present invention;
fig. 7 is a schematic diagram of a structure of a heating furnace for conveying billets to a rolling mill system according to an embodiment of the present invention.
Icon: 100-billet steel; 200-heating furnace; 300-cantilever roller; 400-a first tapping roller way; 500-a second tapping roller way; 600-inlet channel; 700-rolling mill; 800-a first detector; 810-a second detector; 900-controller.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, if the terms "upper", "lower", "inner", "outer", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or the azimuth or the positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present invention and simplifying the description, and it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus it should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, if any, are used merely for distinguishing between descriptions and not for indicating or implying a relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
A control method of the heating furnace 200 according to the present embodiment for transferring the billet 100 to the rolling mill 700 will be described in detail with reference to fig. 1 to 7.
Referring to fig. 1, an embodiment of the present invention provides a control method for a heating furnace 200 to convey a billet 100 to a rolling mill 700, comprising the following steps: step S1, obtaining a first detection signal representing the condition of a steel billet 100 at a first preset position of conveying processing equipment; step S2, obtaining a second detection signal representing the condition of the steel billet 100 at a second preset position of the conveying processing equipment; step S3, obtaining a biting steel signal representing biting conditions of the billet 100 rolling mill 700; and step S4, controlling the speeds of the cantilever roller 300, the first discharging roller way 400 and the second discharging roller way 500 according to the first detection signal, the second detection signal and the steel biting signal so that the billet 100 bites into the rolling mill 700 at a high speed and then enters the rolling mill 700 at a reduced speed. The conveying processing equipment comprises a cantilever roller 300, a first discharging roller table 400, a second discharging roller table 500 and a rolling mill 700 which are sequentially arranged along the conveying direction, wherein a first preset position and a second preset position are sequentially arranged along the conveying direction.
It should be noted that: the first detection signal includes a first signal indicative of a billet 100 at a first predetermined location on the conveying process apparatus; and a second signal indicative of the absence of the billet 100 at the first predetermined location on the conveying process device. The second detection signal includes a third signal indicative of a billet 100 at a second predetermined location on the conveying process apparatus; and a fourth signal indicative of the absence of the billet 100 at the second predetermined location on the conveying process device. The bite signal includes a fifth signal indicative of the bite of the billet 100 into the mill 700; and a sixth signal indicative of billet 100 not biting into mill 700; a seventh signal representative of rolling mill 700 breaking billet 100. Wherein, the first detection signal is detected by a first detector 800 arranged at a first preset position, the second detection signal is detected by a second detector 810 arranged at a second preset position, and the biting signal is obtained by the current change condition of the rolling mill 700.
The length of the billet 100 is divided into 8 meters or 12 meters. The first tapping roller way 400 is provided with more than 8 tapping rollers, and the distance between the tapping rollers is more than or equal to 1 meter and 1.2 meters. According to the length of the rolled billet 100, the total length of the first tapping roller way 400 is more than or equal to 1.3 times of the length of the billet 100. Each tapping roller is driven by an independent motor. The interval of the tapping rollers can better transmit the billet 100, and the heated billet 100 cannot bend downwards due to more suspension. The distance between the tapping rollers can also reduce the loading capacity of the equipment to the greatest extent, and meanwhile, the total length of the first tapping roller way 400 can meet the condition that one billet 100 is on the roller way, and part of the roller way is in an empty state, so that the intelligent control tapping lays a foundation, and the intelligent control tapping machine is mainly used for sectional control.
The second tapping roller way 500 is provided with more than 4 tapping rollers, and the total length of the second tapping roller way 500 is more than or equal to 5 meters. The first tapping roller way 400 and the second tapping roller way 500 are respectively and independently controlled, and are mainly used for realizing innovation of the billet 100 on the traditional single-rotation-speed transmission technology, and the independent control can realize independent start and stop, time difference distinguishing and high-speed and low-speed independent operation of positions.
The first tapping roller table 400 is mainly used for being consistent with the conveying speed of the cantilever roller 300 so as to receive and convey the billet 100 conveyed by the cantilever roller 300. If only one section of tapping roller is arranged, after the steel billet 100 is conveyed at a speed higher than that of the rolling mill 700, the stopping of the tapping roller can cause blocking, interference and even influence the rolling process after the rolling mill 700, and simultaneously the conveying problem of the next steel billet 100 can be influenced; the furnace roller continues to rotate, so that the roller way closer to the rolling mill 700 is caused to wear at a high speed; since the rotation speed of the billet 100 must be higher than the rotation speed of the rolling mill 700 in the process of transporting the billet 700 to the rolling mill 700, if the billet 100 bites into the rolling mill 700, the friction coefficient between the billet 100 and the roller bed at the rotation speed higher than the rolling mill 700 increases, so that the billet 100 wears, the finished product is lowered, and the workload of the roller bed wear speed and the replacement speed also increases greatly.
The first tapping roller way 400 and the cantilever roller 300 run at a high speed 5-20% faster than the rotation speed of the rolling mill 700, so that the billet 100 can be effectively conveyed into the rolling mill 700, and meanwhile, the rotation speed can be conveniently adjusted in a range of the section by the computer of the controller 900 according to the actual production condition. In the process of conveying the billet 100, the unstable time of conveying the billet 100 on the tapping roller due to the fact that the speeds of the first tapping roller way 400 and the second tapping roller way 500 are not matched can be avoided, and meanwhile the increase of the surface abrasion speed of the tapping roller due to the speed difference can be effectively avoided.
Meanwhile, the first tapping roller way 400 and the second tapping roller way 500 are arranged, and the two groups of equipment are independently controlled, so that the maneuverability and the compensation performance are improved. The first tapping roller way 400 and the second tapping roller way 500 can be adjusted at any time to wait according to the production condition of the rolling mill 700, and the second tapping roller way 500 is matched with the first tapping roller way 400 to feed the billet 100 into the rolling mill 700. Such as: after the billet 100 bites into the rolling mill 700, the second tapping roller way 500 can distinguish the transmission speed of the first tapping roller way 400, and the second tapping roller way 500 is automatically decelerated by the control computer to match the rotating speed of the rolling mill 700 or to be higher than 3% of the rotating speed of the rolling mill 700, so that the control does not form a blocking, has a certain impact force and has better transmission performance. Compared with the prior art, the conveying speed of the tapping roller way is required to be higher than the speed of the rolling mill by more than 7%, the hard friction and interference between the roller and the billet 100 are slowed down, the service life of the roller is prolonged, and the abrasion of the billet 100 is reduced.
Specifically, under the condition that the materials of the roller ways are the same, the rotating speed of the existing roller ways is higher than that of a rolling mill, if the production is carried out continuously for 24 hours, the number of production hours is 80, and the service life of the roller ways is approximately equal to 3 months. In this embodiment, after the billet is bitten into the rolling mill, the rotation speed of the second discharging roller table matches with the rotation speed of the rolling mill or stops running, the billet is dragged by the rolling mill, and drives the second discharging roller table to run at a constant speed, so that the wear degree of the second discharging roller table and the billet can be reduced, and under the same production condition, the service lives of the first discharging roller table and the second discharging roller table can be prolonged to more than 12 months, and the service lives of the first discharging roller table and the second discharging roller table are prolonged.
The first preset position is located between the first tapping roller way 400 and the second tapping roller way 500, even if the first detector 800 is located. The second preset position is located at the second tapping roller table 500, even at the set position of the second detector 810. A plurality of detection devices are provided to feed back signals to the controller 900 to automatically calculate the start and stop of the self-running roller, high-speed running, low-speed running and the like. The first tapping roller way 400 and the second tapping roller way 500 are respectively and independently controlled, the second tapping roller way 500 and the rolling mill 700 are also independently controlled, and automatic correction is carried out according to actual production requirements and feedback signals of a detection device.
Referring to fig. 2, 3, 4 and 5, in this embodiment, step S3 of obtaining a bite signal indicative of a bite of the billet 100 rolling mill 700 includes: step S31, the biting steel signal is a fifth signal representing that the billet 100 bites into the rolling mill 700; step S4, controlling the speeds of the cantilever roll 300, the first tapping roller way 400 and the second tapping roller way 500 according to the first detection signal, the second detection signal and the biting steel signal, so that the billet 100 is bitten into the rolling mill 700 at a high speed and then is slowed down into the rolling mill 700, comprising: step S41, controlling the second tapping roller way 500 to decelerate according to the fifth signal.
After the first billet 100 bites into the rolling mill 700, the rolling mill 700 has a bite signal to control the second tapping roller way 500 to decelerate.
Referring to fig. 2, 3, 4 and 5, in this embodiment, step S1 of obtaining a first detection signal indicating a condition of the billet 100 at a first preset position of the conveying and processing apparatus includes: step S11, the first detection signal is a first signal representing that a billet 100 exists at a first preset position on the conveying processing equipment;
step S2, obtaining a second detection signal representing the condition of the steel billet 100 at a second preset position of the conveying and processing device includes: step S21, the second detection signal is a fourth signal representing that no billet 100 exists at a second preset position on the conveying processing equipment;
Step S4, controlling the speeds of the cantilever roll 300, the first tapping roller way 400 and the second tapping roller way 500 according to the first detection signal, the second detection signal and the biting steel signal, so that the billet 100 is bitten into the rolling mill 700 at a high speed and then is slowed down into the rolling mill 700, comprising: step S42, according to the first signal and the fourth signal, the first tapping roller way 400 is controlled to start and operate at a high speed, and the speed of the first tapping roller way 400 is made to be higher than that of the second tapping roller way 500.
According to the production condition in the industry, the speed of rolling and digestion of one billet 100 is at least 55 seconds and at most 30 seconds, so that the rolling and digestion are adjusted by taking 30 seconds-55 seconds as a set parameter. After the second billet 100 rotates 360 degrees by the walking beam of the heating furnace 200, the second billet 100 is sent to the cantilever roller 300, and the controller 900 outputs a signal to enable the cantilever roller 300 and the first discharging roller way 400 to run at high speed, so that the billet 100 is transported out of the heating furnace 200.
When the second detector 810 does not detect the billet 100, the first tapping roller way 400 is controlled to operate at a high speed. The head of the second billet 100 is made to catch up with the tail of one billet 100, and the two billets 100 are stuck head to tail and synchronously enter the rolling mill 700.
In this embodiment, step S1, obtaining a first detection signal indicating a condition of the steel billet 100 at a first preset position of the conveying and processing device includes: step S11, the first detection signal is a first signal representing that a billet 100 exists at a first preset position on the conveying processing equipment;
Step S2, obtaining a second detection signal representing the condition of the steel billet 100 at a second preset position of the conveying and processing device includes: step S21, the second detection signal is a fourth signal representing that no billet 100 exists at a second preset position on the conveying processing equipment;
step S3, obtaining a bite signal representing the bite of the billet 100 rolling mill 700 comprises: step S32, the biting steel signal is a sixth signal representing that the billet 100 is not bitten into the rolling mill 700;
step S4, controlling the speeds of the cantilever roll 300, the first tapping roller way 400 and the second tapping roller way 500 according to the first detection signal, the second detection signal and the biting steel signal, so that the billet 100 is bitten into the rolling mill 700 at a high speed and then is slowed down into the rolling mill 700, comprising: in step S43, the second tapping roller way 500 is controlled to speed up and run at a high speed according to the first signal, the fourth signal and the sixth signal, and the speed of the second tapping roller way 500 is made to approach the speed of the first tapping roller way 400.
After the first detector 800 detects the billet 100, the rolling mill 700 does not bite the billet, and the second detector 810 does not detect the billet 100, the second tapping roller 500 is controlled to start the high-speed operation mode. At this time, the first tapping roller way 400 has the billet 100, the second tapping roller way 500 and the rolling mill 700 have no billet 100, the second tapping roller way 500 is controlled to rotate at a high speed, and the second billet 100 is conveyed to the rolling mill 700 through the second tapping roller way 500 at a high speed.
Referring to fig. 2, 3, 4 and 5, in the present embodiment, step S43 includes: step S431, after the delay time is set, the second tapping roller way 500 is controlled to operate at a high level.
It is noted that, depending on the speed of the tapping rolls of each production line and the linear speed of the rolling mill 700, the second detector 810 is adjusted according to the actual production situation, or the delay signal is set by the signal fed back to the computer of the controller 900 by the second detector 810, and the two billets 100 optimized by a delay of 2-5 seconds are attached to the rolling mill 700. That is, when the second detector 810 does not detect the billet 100, the second delay is 2-5 seconds, and the second tapping roller way 500 is controlled to rotate at a high speed.
In this embodiment, step S1, obtaining a first detection signal indicating a condition of the steel billet 100 at a first preset position of the conveying and processing device includes: step S11, the first detection signal is a first signal representing that a billet 100 exists at a first preset position on the conveying processing equipment;
step S2, obtaining a second detection signal representing the condition of the steel billet 100 at a second preset position of the conveying and processing device includes: step S22, the second detection signal is a third signal representing that the billet 100 exists at a second preset position on the conveying processing equipment;
Step S3, obtaining a bite signal representing the bite of the billet 100 rolling mill 700 comprises: step S31, the biting steel signal is a fifth signal representing that the billet 100 bites into the rolling mill 700;
step S4, controlling the speeds of the cantilever roll 300, the first tapping roller way 400 and the second tapping roller way 500 according to the first detection signal, the second detection signal and the biting steel signal, so that the billet 100 is bitten into the rolling mill 700 at a high speed and then is slowed down into the rolling mill 700, comprising: and step S44, controlling the cantilever roller 300 and the first discharging roller way 400 to stop according to the first signal, the third signal and the fifth signal until the second detection signal is a fourth signal representing that no billet 100 exists at a second preset position on the conveying processing equipment, and controlling the first discharging roller way 400 to start and operate at a high speed.
When the first detector 800 detects the billet 100, the first tapping roller table 400 and the cantilever roller 300 stop operating. The purpose of this is that the last billet 100 has not been digested by the mill 700 and it is necessary to stop waiting for the second detector 810 to give a signal to start following the last billet 100 again.
Referring to fig. 2, 3, 4 and 5, in this embodiment, step S3 of obtaining a bite signal indicative of a bite of the billet 100 rolling mill 700 includes: step S33, the steel biting signals comprise a fifth signal representing that two billets 100 bite into the rolling mill 700 continuously appear in a preset interval period;
Step S4, controlling the speeds of the cantilever roll 300, the first tapping roller way 400 and the second tapping roller way 500 according to the first detection signal, the second detection signal and the biting steel signal, so that the billet 100 is bitten into the rolling mill 700 at a high speed and then is slowed down into the rolling mill 700, comprising: in step S45, according to the fifth signals representing that two billets 100 bite into the rolling mill 700 continuously occurring at the preset interval period, the cantilever roller 300 and the first tapping roller way 400 are controlled to stop until the second detection signal is the fourth signal representing that no billets 100 exist at the second preset position on the conveying processing equipment, and the first tapping roller way 400 is controlled to start and operate at a high speed.
As to how the two billets 100 are closely attached, the billets 100 have a certain extension and clearance, so after the parts where the two billets 100 are attached are jointly conveyed to the rolling mill 700, the rolling mill 700 bites on a steel signal to generate tiny fluctuation, and after the controller 900 receives the signal, the controller computer controls the first tapping roller way 400 to stop running, waits for 360 DEG rotation of the walking beam of the heating furnace 200, and the first tapping roller way 400 runs at high speed again. That is, when the small fluctuation of the biting signal occurs, the first tapping roller way 400 is controlled to stop until the signal of the second detector 810 disappears, and the first tapping roller way 400 is controlled to rotate at a high speed. That is, after 30-55 seconds, the third billet 100 is rotated by 360 ° on the walking beam of the heating furnace 200, and the third billet 100 is sent to the cantilever roll 300 to form a cycle with the control model of the second billet 100.
Referring to fig. 2, 3, 4 and 5, in the present embodiment, the billet 100 is a production-again-adjusted billet 100;
step S1, obtaining a first detection signal representing a condition of the steel billet 100 at a first preset position of the conveying and processing device includes: step S12, the first detection signal is a second signal representing that no billet 100 exists at a first preset position on the conveying processing equipment;
step S2, obtaining a second detection signal representing the condition of the steel billet 100 at a second preset position of the conveying and processing device includes: step S22, the second detection signal is a third signal representing that the billet 100 exists at a second preset position on the conveying processing equipment;
step S3, obtaining a bite signal representing the bite of the billet 100 rolling mill 700 comprises: step S31, the biting steel signal is a fifth signal representing that the billet 100 bites into the rolling mill 700;
step S4, controlling the speeds of the cantilever roll 300, the first tapping roller way 400 and the second tapping roller way 500 according to the first detection signal, the second detection signal and the biting steel signal, so that the billet 100 is bitten into the rolling mill 700 at a high speed and then is slowed down into the rolling mill 700, comprising: step S46, according to the second signal, the third signal and the fifth signal, the first tapping roller way 400 and the second tapping roller way 500 are controlled to stop.
The first billet 100 is delivered in a multiplexed manner. The second detector 810 detects that the billet 100 exists, and the rolling mill 700 has the steel biting current, that is, after the second detector 810 and the rolling mill 700 have signals synchronously with the steel biting current, the controller 900 controls the first discharging roller way 400 and the second discharging roller way 500 to stop running, and output production of the first billet 100 after the recovery is completed. In the actual production process, the first billet 100 produced again is called as a commissioning steel, and must have a certain waiting time. After the billets 100 are bitten into the rolling mill 700, the first tapping roller way 400 and the second tapping roller way 500 are stopped, the first tapping roller way 400 is stopped, energy sources can be saved, and the second tapping roller way 500 can reduce friction with the billets 100.
Referring to fig. 2, 3, 4 and 5, in this embodiment, step S1 of obtaining a first detection signal indicating a condition of the billet 100 at a first preset position of the conveying and processing apparatus includes: step S11, the first detection signal is a first signal representing that a billet 100 exists at a first preset position on the conveying processing equipment;
step S2, obtaining a second detection signal representing the condition of the steel billet 100 at a second preset position of the conveying and processing device includes: step S21, the second detection signal is a fourth signal representing that no billet 100 exists at a second preset position on the conveying processing equipment;
Step S3, obtaining a bite signal representing the bite of the billet 100 rolling mill 700 comprises: step S34, the biting steel signal is a seventh signal representing that the rolling mill 700 breaks the billet 100;
step S4, controlling the speeds of the cantilever roll 300, the first tapping roller way 400 and the second tapping roller way 500 according to the first detection signal, the second detection signal and the biting steel signal, so that the billet 100 is bitten into the rolling mill 700 at a high speed and then is slowed down into the rolling mill 700, comprising: in step S47, the cantilever roller 300 and the first tapping roller table 400 are controlled to start and rotate according to the first signal, the fourth signal and the seventh signal, so as to retract the billet 100.
When the first detector 800 detects the billet 100, the signal of the second detector 810 disappears, and the rolling mill 700 has a flying shear break signal, the first tapping roller 400 is started to reverse to send the billet 100 back to the heating furnace 200 for heat preservation. In the actual production process, the subsequent rolling process of the rolling mill 700 is forced to stop production adjustment equipment or repair equipment due to equipment or process problems, at this time, flying shears at a rough rolling outlet of the billet 100 output by the rolling mill 700 break, so that the first billet 100 is formed into scrap steel and put into a collection hopper, and the waiting billet 100 can be returned into the heating furnace 200 through manual intervention, so that heat preservation is performed, and materials are prevented from being wasted. After the second detector 810 signal has disappeared, the flying shears have not performed the break mode, and production continues as follows.
The control method for conveying the billet 100 to the rolling mill 700 by the heating furnace 200 provided by the embodiment has at least the following advantages:
according to the technical scheme, the intelligent technology for more accurately controlling the section from the heating furnace 200 to the rolling mill 700 can be realized, the first discharging roller way 400 and the second discharging roller way 500 are separately arranged, the speed can be independently controlled, after the billet 100 bites into the rolling mill 700, the speed of the second discharging roller way 500 can be reduced, abnormal friction caused by the speed difference between the discharging roller and the billet 100 is effectively avoided, the surface abrasion speed of the discharging roller is greatly reduced, and the service life of equipment is prolonged. Meanwhile, the speed of the first tapping roller way 400 is not influenced by the speed of the second tapping roller way 500, and the subsequent conveying of the billet 100 can be continuously finished. Not only can the connection problem be effectively solved, but also the service life of the roller way can be prolonged. In addition, the steel billet 100 is decelerated after being bitten into the rolling mill 700, so that the huge impact force of the steel billet 100 after being bitten into the rolling mill 700 can be reduced, and the normal running stability of the rolling mill 700 is improved through technologies such as speed matching and intelligent calculation.
Referring to fig. 6 and 7, the embodiment of the present invention further provides a system for transporting a billet 100 from a heating furnace 200 to a rolling mill 700, the system for transporting a billet 100 from a heating furnace 200 to a rolling mill 700 comprising a transport processing device, a first detector 800, a second detector 810, and a controller 900; the conveying processing equipment comprises a cantilever roller 300, a first discharging roller way 400, a second discharging roller way 500 and a rolling mill 700 which are sequentially arranged along the conveying direction, wherein a first preset position and a second preset position are sequentially arranged along the conveying direction, and the cantilever roller 300, the first discharging roller way 400 and the second discharging roller way 500 are communicated with a controller 900; the first detector 800 is disposed at a first preset location and is in communication with the controller 900; the second detector 810 is disposed at a second preset location and is in communication with the controller 900; the controller 900 is used to perform a control method of the heating furnace 200 for transferring the billet 100 to the rolling mill 700.
In this embodiment, the rolling mill 700 is provided with a bite, the level of the bite with respect to the ground is higher than the level of the second tapping roller table 500 with respect to the ground, and the height difference is not less than 5mm. After the billet 100 bites into the rolling mill 700, the tail end of the billet 100 can be in a suspended state with the second tapping roller way 500, which is beneficial to reducing friction.
In this embodiment, the system for transporting billets 100 to rolling mill 700 by furnace 200 further includes an inlet channel 600, wherein inlet channel 600 is disposed between second tapping roller table 500 and the bite of rolling mill 700.
The inlet channel 600 is in the form of a bell mouth, and the maximum angle of the bell mouth is more than 15mm greater than the width of the second tapping roller way 500.
After the billet 100 bites into the rolling mill 700 through the inlet channel 600, the second tapping roller way 500 closest to the rolling mill 700 is in an empty state and is not in contact with the billet 100. In the prior art, the two tapping rolls of the second tapping roller table 500 closest to the rolling mill 700 wear at the fastest speed, because the fastest wearing tapping roll is in contact with the billet 100 for the longest time. After the inlet channel 600 is adopted and the height difference is set, the billet 100 only contacts with the bottom of the inlet channel 600 for a very short time, and after the billet 100 bites into the rolling mill 700, the inlet channel 600 and the nearest 2 rollers of the second tapping roller way 500 are in a suspended state, so that the service life of equipment is prolonged.
The present invention is not limited to the above embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present invention are intended to be included in the scope of the present invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.
Claims (9)
1. A control method for conveying billets to a rolling mill by a heating furnace, which is characterized by comprising the following steps:
acquiring a first detection signal representing the condition of a steel billet (100) at a first preset position of the conveying and processing equipment; acquiring a second detection signal representing the condition of the steel billet (100) at a second preset position of the conveying and processing equipment; obtaining a biting steel signal representing biting conditions of a billet (100) rolling mill (700); controlling the speeds of the cantilever roller (300), the first discharging roller way (400) and the second discharging roller way (500) according to the first detection signal, the second detection signal and the steel biting signal so as to enable the billet (100) to bite into the rolling mill (700) at a high speed and then to enter the rolling mill (700) at a reduced speed; the conveying processing equipment comprises the cantilever roller (300), the first discharging roller way (400), the second discharging roller way (500) and the rolling mill (700) which are sequentially arranged along the conveying direction, wherein the first preset position and the second preset position are sequentially arranged along the conveying direction;
The step of obtaining a bite signal indicative of a bite of a billet (100) rolling mill (700) comprises: the bite signal is a fifth signal representing the bite of the billet (100) into the rolling mill (700); the step of controlling the speeds of the cantilever roller (300), the first tapping roller way (400) and the second tapping roller way (500) according to the first detection signal, the second detection signal and the steel biting signal so as to enable the billet (100) to bite into the rolling mill (700) at a high speed and then to be slowed down into the rolling mill (700) comprises the following steps: according to the fifth signal, controlling the second tapping roller way (500) to decelerate;
alternatively, the step of obtaining a first detection signal indicative of the condition of the billet (100) at a first preset position of the conveying and processing device comprises: the first detection signal is a first signal representing that a billet (100) exists at a first preset position on the conveying and processing equipment; the step of obtaining a second detection signal indicative of the condition of the billet (100) at a second preset position of the conveying and processing device comprises: the second detection signal is a fourth signal representing that no billet (100) exists at a second preset position on the conveying and processing equipment; the step of controlling the speeds of the cantilever roller (300), the first tapping roller way (400) and the second tapping roller way (500) according to the first detection signal, the second detection signal and the steel biting signal so as to enable the billet (100) to bite into the rolling mill (700) at a high speed and then to be slowed down into the rolling mill (700) comprises the following steps: according to the first signal and the fourth signal, controlling the first tapping roller way (400) to start and run at a high speed, and enabling the speed of the first tapping roller way (400) to be higher than the speed of the second tapping roller way (500);
Alternatively, the step of obtaining a first detection signal indicative of the condition of the billet (100) at a first preset position of the conveying and processing device comprises: the first detection signal is a first signal representing that a billet (100) exists at a first preset position on the conveying and processing equipment; the step of obtaining a second detection signal indicative of the condition of the billet (100) at a second preset position of the conveying and processing device comprises: the second detection signal is a fourth signal representing that no billet (100) exists at a second preset position on the conveying and processing equipment; the step of obtaining a bite signal indicative of a bite of a billet (100) rolling mill (700) comprises: the bite signal is a sixth signal indicative of the billet (100) not biting into the mill (700); the step of controlling the speeds of the cantilever roller (300), the first tapping roller way (400) and the second tapping roller way (500) according to the first detection signal, the second detection signal and the steel biting signal so as to enable the billet (100) to bite into the rolling mill (700) at a high speed and then to be slowed down into the rolling mill (700) comprises the following steps:
and controlling the second tapping roller way (500) to speed up and run at a high speed according to the first signal, the fourth signal and the sixth signal, and enabling the speed of the second tapping roller way (500) to approach the speed of the first tapping roller way (400).
2. The control method for conveying billets to a rolling mill by a heating furnace according to claim 1, wherein:
the step of controlling the second tapping roller way (500) to speed up and run at a high speed according to the first signal, the fourth signal and the sixth signal, and making the speed of the second tapping roller way (500) approach to the speed of the first tapping roller way (400) comprises:
and after a delay time is delayed by a preset delay period, controlling the second tapping roller way (500) to operate at the height.
3. The control method for conveying billets to a rolling mill by a heating furnace according to claim 1, wherein:
the step of obtaining a first detection signal indicative of the condition of the billet (100) at a first preset position of the conveying and processing device comprises:
the first detection signal is a first signal representing that a billet (100) exists at a first preset position on the conveying and processing equipment;
the step of obtaining a second detection signal indicative of the condition of the billet (100) at a second preset position of the conveying and processing device comprises:
the second detection signal is a third signal representing that a billet (100) exists at a second preset position on the conveying and processing equipment;
the step of obtaining a bite signal indicative of a bite of a billet (100) rolling mill (700) comprises:
The bite signal is a fifth signal representing the bite of the billet (100) into the rolling mill (700);
the step of controlling the speeds of the cantilever roller (300), the first tapping roller way (400) and the second tapping roller way (500) according to the first detection signal, the second detection signal and the steel biting signal so as to enable the billet (100) to bite into the rolling mill (700) at a high speed and then to be slowed down into the rolling mill (700) comprises the following steps:
and controlling the cantilever roller (300) and the first discharging roller way (400) to stop according to the first signal, the third signal and the fifth signal until the second detection signal is a fourth signal representing no billet (100) at a second preset position on the conveying processing equipment, and controlling the first discharging roller way (400) to start and operate at a high speed.
4. The control method for conveying billets to a rolling mill by a heating furnace according to claim 1, wherein:
the step of obtaining a bite signal indicative of a bite of a billet (100) rolling mill (700) comprises:
the steel biting signals comprise two fifth signals representing that the billet (100) bites into the rolling mill (700) continuously appear in a preset interval period;
the step of controlling the speeds of the cantilever roller (300), the first tapping roller way (400) and the second tapping roller way (500) according to the first detection signal, the second detection signal and the steel biting signal so as to enable the billet (100) to bite into the rolling mill (700) at a high speed and then to be slowed down into the rolling mill (700) comprises the following steps:
According to a fifth signal representing that two billets (100) are bitten into the rolling mill (700) continuously in a preset interval period, the cantilever roller (300) and the first tapping roller way (400) are controlled to stop until the second detection signal is a fourth signal representing that no billets (100) exist at a second preset position on conveying processing equipment, and the first tapping roller way (400) is controlled to start and operate at a high speed.
5. The control method for conveying billets to a rolling mill by a heating furnace according to claim 1, wherein:
the billet (100) is a production-restoring debugging billet (100);
the step of obtaining a first detection signal indicative of the condition of the billet (100) at a first preset position of the conveying and processing device comprises:
the first detection signal is a second signal representing that no billet (100) exists at a first preset position on the conveying and processing equipment;
the step of obtaining a second detection signal indicative of the condition of the billet (100) at a second preset position of the conveying and processing device comprises:
the second detection signal is a third signal representing that a billet (100) exists at a second preset position on the conveying and processing equipment;
the step of obtaining a bite signal indicative of a bite of a billet (100) rolling mill (700) comprises:
the bite signal is a fifth signal representing the bite of the billet (100) into the rolling mill (700);
The step of controlling the speeds of the cantilever roller (300), the first tapping roller way (400) and the second tapping roller way (500) according to the first detection signal, the second detection signal and the steel biting signal so as to enable the billet (100) to bite into the rolling mill (700) at a high speed and then to be slowed down into the rolling mill (700) comprises the following steps:
and controlling the first tapping roller way (400) and the second tapping roller way (500) to stop according to the second signal, the third signal and the fifth signal.
6. The control method for conveying billets to a rolling mill by a heating furnace according to claim 1, wherein:
the step of obtaining a first detection signal indicative of the condition of the billet (100) at a first preset position of the conveying and processing device comprises:
the first detection signal is a first signal representing that a billet (100) exists at a first preset position on the conveying and processing equipment;
the step of obtaining a second detection signal indicative of the condition of the billet (100) at a second preset position of the conveying and processing device comprises:
the second detection signal is a fourth signal representing that no billet (100) exists at a second preset position on the conveying and processing equipment;
the step of obtaining a bite signal indicative of a bite of a billet (100) rolling mill (700) comprises:
The biting steel signal is a seventh signal representing a broken steel billet (100) of the rolling mill (700);
the step of controlling the speeds of the cantilever roller (300), the first tapping roller way (400) and the second tapping roller way (500) according to the first detection signal, the second detection signal and the steel biting signal so as to enable the billet (100) to bite into the rolling mill (700) at a high speed and then to be slowed down into the rolling mill (700) comprises the following steps:
and controlling the cantilever roller (300) and the first tapping roller way (400) to start and rotate according to the first signal, the fourth signal and the seventh signal so as to retract the billet (100).
7. A furnace delivery billet to mill system characterized by:
the furnace delivery billet to mill system includes a delivery processing apparatus, a first detector (800), a second detector (810), and a controller (900); the conveying processing equipment comprises a cantilever roller (300), a first discharging roller way (400), a second discharging roller way (500) and a rolling mill (700) which are sequentially arranged along the conveying direction, wherein the first preset position and the second preset position are sequentially arranged along the conveying direction, and the cantilever roller (300), the first discharging roller way (400) and the second discharging roller way (500) are communicated with the controller (900); the first detector (800) is disposed at a first preset location and is in communication with the controller (900); the second detector (810) is disposed at a second preset location and is in communication with the controller (900);
The controller (900) is configured to perform the furnace delivery billet to mill control method of any one of claims 1-6.
8. The furnace delivery billet to mill system of claim 7 wherein:
the rolling mill (700) is provided with a biting inlet, the horizontal height of the biting inlet relative to the ground is higher than that of the second tapping roller way (500) relative to the ground, and the height difference is more than or equal to 5mm.
9. The furnace delivery billet to mill system of claim 8 wherein:
the furnace delivers billets to a rolling mill system further comprising an inlet channel (600), the inlet channel (600) being arranged between the second tapping roller way (500) and the bite of the rolling mill (700).
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