CN114985475A - Method and device for controlling tapping rhythm of heating furnace - Google Patents
Method and device for controlling tapping rhythm of heating furnace Download PDFInfo
- Publication number
- CN114985475A CN114985475A CN202210571027.0A CN202210571027A CN114985475A CN 114985475 A CN114985475 A CN 114985475A CN 202210571027 A CN202210571027 A CN 202210571027A CN 114985475 A CN114985475 A CN 114985475A
- Authority
- CN
- China
- Prior art keywords
- time
- tapping
- heating furnace
- slab
- plate blank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010079 rubber tapping Methods 0.000 title claims abstract description 162
- 238000010438 heat treatment Methods 0.000 title claims abstract description 130
- 238000000034 method Methods 0.000 title claims abstract description 53
- 230000033764 rhythmic process Effects 0.000 title claims abstract description 28
- 238000001514 detection method Methods 0.000 claims abstract description 80
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 72
- 239000010959 steel Substances 0.000 claims abstract description 72
- 238000005096 rolling process Methods 0.000 claims abstract description 39
- 230000001133 acceleration Effects 0.000 claims description 56
- 238000004590 computer program Methods 0.000 claims description 8
- 238000012360 testing method Methods 0.000 claims description 6
- 230000001174 ascending effect Effects 0.000 claims description 5
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- B21B37/005—Control of time interval or spacing between workpieces
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/70—Furnaces for ingots, i.e. soaking pits
-
- 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
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Control Of Heat Treatment Processes (AREA)
Abstract
The invention relates to the technical field of heating furnace control, in particular to a method and a device for controlling the tapping rhythm of a heating furnace, wherein the method is applied to a control system of a plurality of heating furnaces, the plurality of heating furnaces are sequentially arranged along the direction of a roller way, a plate blank reaches the roller way after tapping from the heating furnace and reaches a rough rolling inlet along with the roller way, and the method comprises the following steps: acquiring first time from steel tapping to the time when a first plate blank reaches a thermal detection position along a roller way, wherein the thermal detection position is a joint of a heating furnace and rough rolling, and the first plate blank is a plate blank in a target heating furnace; and controlling the tapping time of the second plate blank so that the second time from tapping to reaching the thermal detection position along the roller way of the second plate blank meets a preset condition, wherein the second plate blank is a plate blank in a heating furnace adjacent to the target heating furnace, the preset condition is that the difference value between the second time and the first time is a set value, and further, the tapping rhythm is controlled by controlling the tapping time of the plate blank in each heating furnace, so that the waste of rolling gap time between the adjacent plate blanks is avoided, and the rolling efficiency is improved.
Description
Technical Field
The invention relates to the technical field of heating furnace control, in particular to a method and a device for controlling the tapping rhythm of a heating furnace.
Background
In the metallurgical industry, the tapping rhythm of the heating furnace is uniformly controlled, the consistency of the time when the slab discharged from the heating furnace reaches the rough rolling inlet at each time can be ensured, and the method has great practical significance for the uniformity of the rolling rhythm, the improvement of the rolling rhythm and the improvement of the yield.
The tapping process of the original heating furnace is completely controlled by roughing to automatically steel, the steel-demanding time rhythm mainly comprises tapping time of a tapping machine and hot detection time from running of a plate blank on a roller way to a junction of roughing and the heating furnace, but the following problems exist:
the tapping time of each plate blank is inconsistent, the transportation time of each plate blank on the roller way is inconsistent, the control accuracy of the tapping rhythm of each heating furnace is influenced, the rhythm can not be accurately controlled, the waste of the rolling gap time is also caused, and the rolling efficiency is not high.
Disclosure of Invention
In view of the above problems, the present invention has been made to provide a method and a device for controlling the tapping rhythm of a heating furnace that overcome or at least partially solve the above problems.
In a first aspect, the present invention further provides a method for controlling a tapping rhythm of a heating furnace, which is applied to a control system of a plurality of heating furnaces, wherein the plurality of heating furnaces are sequentially arranged along a roller way direction, a head end heating furnace is closest to a rough rolling inlet, a slab arrives on the roller way after tapping from the heating furnace, and arrives at the rough rolling inlet along with the roller way, a detection grating is arranged at an outlet of each heating furnace, and a distance is maintained between the slab and a furnace wall of the heating furnace, and the method comprises:
acquiring first time from steel tapping to the time when a first plate blank reaches a thermal detection position along the roller way, wherein the thermal detection position is a joint of a heating furnace and rough rolling, and the first plate blank is a plate blank in a target heating furnace;
and controlling the tapping time of the second slab so that the second time from tapping to reaching the thermal detection position along the roller way of the second slab meets a preset condition, wherein the second slab is a slab in a heating furnace adjacent to the target heating furnace, and the preset condition is that the difference value between the second time and the first time is a set value.
Further, the first time from tapping to reaching the thermal test site along the roller way for obtaining the first slab comprises:
acquiring third time from tapping to the arrival of the first plate blank on the roller way;
acquiring fourth time for the first plate blank to reach the thermal detection position along the roller way through the furnace wall;
and obtaining the first time based on the third time and the fourth time.
Further, the third time from tapping to reaching the roller way for obtaining the first slab comprises:
when a first plate blank is detected through the detection grating, controlling a steel tapping machine to drag the first plate blank onto the roller way from the position of the detection grating, wherein the steel tapping machine is positioned at the steel tapping position of the heating furnace;
acquiring fifth time for dragging the first plate blank by the tapping machine, sixth time for ascending and descending the tapping machine and seventh time for the furnace door of the heating furnace to reach a half-open position;
and obtaining a third time from tapping to reaching the roller way for the first plate blank based on the fifth time, the sixth time and the seventh time.
Further, the acquiring of the fifth time for the tapping machine to drag the first slab comprises:
acquiring a first preset distance between a forward speed reducing point of the steel tapping machine and a steel tapping front end, a second preset distance between a rear leg speed reducing point of the steel tapping machine and a roller way center line, a third preset distance exceeding the detection grating during steel tapping of the first slab, a fourth preset distance between a head of the steel tapping machine and the detection grating, a fifth preset distance between the detection grating and the roller way center line, a first speed of forward acceleration, a second speed of forward deceleration, a third speed of backward acceleration and a fourth speed of backward deceleration of the steel tapping machine;
and obtaining a fifth time for the tapping machine to drag the first slab based on the first preset distance, the second preset distance, the third preset distance, the fourth preset distance, the fifth preset distance, the first speed, the second speed, the third speed and the fourth speed.
Further, obtaining a fifth time for the first slab to reach the roller table from the tapping based on the first preset distance, the second preset distance, the third preset distance, the fourth preset distance, the fifth preset distance, the first speed, the second speed, the third speed, and the fourth speed includes:
obtaining a fifth time for the first slab to reach the roller table from the steel tapping according to the following formula:
t3＝(L4-L3+w×2/3-0.5)/v31+0.5/v32+L5-L3+w/2-0.5)/v41+0.5/v42
wherein, L3 is the third preset distance, L4 is the fourth preset distance, L5 is the fifth preset distance, first preset distance with the second preset distance is 0.5, v31 is the first speed, v32 is the second speed, v41 is the third speed, v42 is the fourth speed, 2/3 is that the tapping machine stretches to 2/3 department of first slab, t3 is the fifth time.
Further, the obtaining a fourth time when the first slab passes through the furnace wall along the roller way to reach the thermal detection position comprises:
acquiring the acceleration and the conveying speed of the roller way;
obtaining the acceleration duration and the acceleration distance of the first plate blank in the acceleration process based on the acceleration and the conveying speed of the roller way;
and acquiring a sixth preset distance between the first plate blank and the thermal detection position when the first plate blank arrives on the roller way, and acquiring fourth time for the first plate blank to arrive at the thermal detection position along the roller way through the furnace wall based on the acceleration duration, the acceleration distance, the conveying speed and the sixth preset distance.
Further, the obtaining a fourth time for the first slab to reach the thermal detection position along the roller way through the furnace wall based on the acceleration duration, the acceleration distance, the transport speed, and the sixth preset distance includes:
and obtaining the fourth time for the first plate blank to reach the thermal detection position through the furnace wall along the roller way according to the following formula:
T1＝t+(L1+L2-l)/v
l＝a×t×t/2
wherein a is an acceleration, T is the acceleration time period, L is the acceleration distance, v is the carrying speed, L1+ L2 is the sixth preset distance, and T1 is the fourth time.
In a second aspect, the present invention further provides a control device for the heating furnace tapping rhythm, which is applied to a control system of a plurality of heating furnaces, wherein the plurality of heating furnaces are sequentially arranged along the direction of a roller way, a head end heating furnace is closest to a rough rolling inlet, a slab arrives on the roller way after tapping from the heating furnaces, and arrives at the rough rolling inlet along with the roller way, a detection grating is arranged at an outlet of each heating furnace, and a distance is maintained between the slab and a furnace wall of the heating furnace, and the control device comprises:
the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring the first time from steel tapping to the time when a first plate blank reaches a thermal detection position along a roller way, the thermal detection position is the joint of a heating furnace and rough rolling, and the first plate blank is the plate blank in any heating furnace;
and the control module is used for controlling the tapping time of the second slab so that the second time from tapping to the time from reaching the thermal detection position along the roller way of the second slab meets a preset condition, the second slab is a slab in a heating furnace adjacent to any heating furnace, and the preset condition is that the difference value between the second time and the first time is a set value.
In a third aspect, the present invention also provides a computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the above-mentioned method steps when executing the program.
In a fourth aspect, the invention also provides a computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the above-mentioned method steps.
One or more technical solutions in the embodiments of the present invention have at least the following technical effects or advantages:
the invention provides a method for controlling the tapping rhythm of a heating furnace, which is applied to a control system of a plurality of heating furnaces, wherein the plurality of heating furnaces are sequentially arranged along the direction of a roller way, a head-end heating furnace is closest to a rough rolling inlet, a plate blank reaches the roller way after tapping from the heating furnace, and reaches the rough rolling inlet along with the roller way, a detection grating is arranged at the outlet of each heating furnace, and the plate blank keeps a distance with the furnace wall of the heating furnace, and the method comprises the following steps: acquiring first time from tapping to the time when a first plate blank reaches a thermal detection position along a roller way, wherein the thermal detection position is a joint of a heating furnace and rough rolling, and the first plate blank is a plate blank in a target heating furnace; the steel tapping time of the second plate blank is controlled, so that the second time from steel tapping to the time reaching the thermal detection position along the roller way of the second plate blank meets a preset condition, the second plate blank is a plate blank in a heating furnace adjacent to the target heating furnace, the preset condition is that the difference value between the second time and the first time is a set value, the steel tapping rhythm is controlled by controlling the steel tapping time of the plate blank in each heating furnace, the waste of rolling gap time between the adjacent plate blanks is avoided, and the rolling efficiency is improved.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Moreover, in the drawings, like reference numerals are used to refer to like elements throughout. In the drawings:
FIG. 1 is a schematic view showing a structure of tapping a heating furnace to reach a hot-testing site according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart showing steps of a method for controlling the tapping rhythm of the heating furnace in the embodiment of the invention;
FIG. 3 is a schematic structural diagram showing a control device for the tapping rhythm of the heating furnace in the embodiment of the invention;
fig. 4 shows a schematic structural diagram of a computer device for implementing the method for controlling the tapping rhythm of the heating furnace in the embodiment of the invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
Example one
The embodiment of the invention provides a method for controlling the tapping rhythm of a heating furnace, which is applied to a control system of a plurality of heating furnaces, as shown in figure 1, the plurality of heating furnaces are sequentially arranged along the direction of a roller way, a head end heating furnace is closest to a rough rolling inlet, a plate blank reaches the roller way after tapping from the heating furnace, and reaches the rough rolling inlet along with the roller way, a detection grating is arranged at the outlet of each heating furnace, and the plate blank keeps a distance with the furnace wall of the heating furnace. The tapping machine is positioned at the tapping position of the heating furnace and is used for dragging the slab from the furnace mouth to the roller way.
As shown in fig. 2, the method includes:
s201, acquiring the first time from steel tapping to the time when the first plate blank reaches a thermal detection position along a roller way, wherein the thermal detection position is a joint of a heating furnace and rough rolling, and the first plate blank is the plate blank in a target heating furnace;
s202, controlling the steel tapping time of the second slab so that the second time from steel tapping to reaching the thermal detection position along the roller way of the second slab meets a preset condition, wherein the second slab is a slab in a heating furnace adjacent to the target heating furnace, and the preset condition is that the difference value between the second time and the first time is a set value.
First, slab tapping is performed from the time when the slab is detected by the detection grating. The slab is shown in fig. 1 just at the tapping position.
Next, in S201, the first time is obtained as follows:
acquiring third time from steel tapping to arrival of the first plate blank at the roller way;
obtaining fourth time for the first plate blank to reach a thermal detection position along the roller way through the furnace wall;
and obtaining the first time based on the third time and the fourth time.
Specifically, after the third time and the fourth time are obtained, the third time and the fourth time are added to obtain the first time.
The process of obtaining the third time is described in detail below:
when the first plate blank is detected through the detection grating, the steel tapping machine is controlled to be started to drag the first plate blank onto the roller way from the position of the detection grating, and the steel tapping machine is located at the steel tapping position of the heating furnace;
then, acquiring fifth time for dragging the first plate blank by the steel tapping machine, sixth time for ascending and descending the steel tapping machine and seventh time for the furnace door of the heating furnace to reach a half-open position;
and obtaining a third time from the tapping to the roller way of the first slab based on the fifth time, the sixth time and the seventh time.
Firstly, the process of dragging the first slab by the steel tapping machine comprises the steps of accelerating forward, decelerating forward, accelerating backward and decelerating backward of the steel tapping machine. Therefore, in the process that the first slab is dragged to reach the roller way, the following distance information needs to be acquired, including:
the method comprises the steps of obtaining a first preset distance between a forward deceleration point of the steel tapping machine and the front end of the steel tapping machine, wherein the first preset distance is a fixed value of 0.5, a second preset distance between a backward deceleration point of the steel tapping machine and the central line of a roller way is also a fixed value of 0.5, and the forward deceleration point and the backward deceleration point are both located between a detection grating and the central line of the roller way.
And a third preset distance L3 exceeding the detection grating during the steel tapping of the first slab, a fourth preset distance L4 between the head of the steel tapping machine and the detection grating, a fifth preset distance L5 between the detection grating and the central line of the roller way, a first forward acceleration speed v31 of the steel tapping machine, a second forward deceleration speed v32 of the steel tapping machine, a third backward acceleration speed v41 of the steel tapping machine and a fourth backward deceleration speed v42 of the steel tapping machine are required to be obtained.
After the information is obtained, according to the first preset distance, the second preset distance, the third preset distance, the fourth preset distance, the fifth preset distance, the first speed, the second speed, the third speed and the fourth speed, the fifth time for the steel tapping machine to drag the first slab is obtained.
The obtaining process of the fifth time is specifically obtained according to the following formula:
t3＝(L4-L3+w×2/3-0.5)/v31+0.5/v32+L5-L3+w/2-0.5)/v41+0.5/v42
wherein, L3 is a third preset distance, L4 is a fourth preset distance, L5 is a fifth preset distance, the first preset distance and the second preset distance are both 0.5, v31 is a first speed, v32 is a second speed, v41 is a third speed, v42 is a fourth speed, 2/3 is that the steel tapping machine extends to 2/3 of the first slab, and t3 is a fifth time.
Of course, the slab in each heating furnace can be dragged out by the steel tapping machine in the manner described above to obtain the fifth time for the slab to be dragged by the steel tapping machine.
In addition, the steel tapping machine requires not only the time required for pulling the slab but also the time required for the steel tapping machine to ascend and descend, that is, the sixth time. Before dragging the slab, the steel tapping machine needs to be controlled to descend so as to extend below the slab, then the steel tapping machine needs to be controlled to ascend so as to achieve dragging, and naturally, after reaching above the roller way, the steel tapping machine needs to be controlled to descend, the ascending and descending time of the steel tapping machine in the process is fixed, and the ascending and descending time of the steel tapping machine can be set as t5 according to experience.
When the slab reaches the outlet of the heating furnace, the time for waiting the half-open position of the furnace door of the heating furnace, namely a seventh time, is also needed, and the seventh time is also a fixed value t 6.
Then, a third time at which the first slab arrives at the roller table from the tapping is obtained based on the fifth time, the sixth time, and the seventh time.
Specifically, the third time T3 ═ T3+ T5+ T6.
Next, the acquisition process of the fourth time is described:
acquiring the acceleration and the conveying speed of the roller way;
obtaining the acceleration duration and the acceleration distance of the first plate blank acceleration process based on the acceleration and the conveying speed;
and acquiring a sixth preset distance between the first plate blank and the thermal detection position when the first plate blank arrives on the roller way, and acquiring fourth time for the first plate blank to arrive at the thermal detection position along the roller way through the furnace wall based on the acceleration duration, the acceleration distance, the conveying speed and the sixth preset distance.
Specifically, the formula for obtaining the fourth time is as follows:
T1＝t+(L1+L2-l)/v
l＝a×t×t/2
where a is an acceleration, T is an acceleration duration, L is an acceleration distance, v is a carrying speed, L1+ L2 is a sixth preset distance, and T1 is the fourth time.
L1 indicates the distance between the first slab and the furnace wall of the heating furnace, and L2 indicates the distance between the furnace wall and the thermal test site.
The time used by the first slab in the acceleration process is t-v/a, and the acceleration distance of the first slab in the acceleration process is l-a x t/2.
Therefore, the fourth time of the first slab reaching the thermal detection position along the roller way through the furnace wall is obtained, namely the acceleration time plus the uniform speed time, namely T1 ═ T + (L1+ L2-L)/v
After the fourth time that the first slab reaches the thermal detection position along the roller way through the furnace wall is obtained, S102 is executed, and the steel tapping time of the second slab is controlled, so that the second time that the second slab reaches the thermal detection position along the roller way from the steel tapping meets a preset condition, the second slab is the slab in the heating furnace adjacent to the target heating furnace, and the preset condition is that the difference value between the second time and the first time is a set value.
Namely, by controlling the tapping time of the second slab adjacent to the first slab, no idle time exists between the first slab and the second slab when the first slab and the second slab respectively reach the thermal detection position, and the rolling efficiency is not influenced.
Of course, the tapping time of the third slab, the fourth slab and the Nth slab can be controlled, so as to ensure that the time difference between the adjacent slabs from the tapping start to the heat detection meets a set value, and the set value can be 0.9 second and the like, and is not particularly limited.
By uniformly controlling the moment of slab tapping, the tapping rhythm is reasonably controlled, and the rolling gap time is reduced.
One or more technical solutions in the embodiments of the present invention have at least the following technical effects or advantages:
the invention provides a method for controlling the tapping rhythm of a heating furnace, which is applied to a control system of a plurality of heating furnaces, wherein the plurality of heating furnaces are sequentially arranged along the direction of a roller way, a head-end heating furnace is closest to a rough rolling inlet, a plate blank reaches the roller way after tapping from the heating furnace, and reaches the rough rolling inlet along with the roller way, a detection grating is arranged at the outlet of each heating furnace, and the plate blank keeps a distance with the furnace wall of the heating furnace, and the method comprises the following steps: acquiring first time from steel tapping to the time when a first plate blank reaches a thermal detection position along a roller way, wherein the thermal detection position is a joint of a heating furnace and rough rolling, and the first plate blank is a plate blank in a target heating furnace; the steel tapping time of the second plate blank is controlled, so that the second time from steel tapping to the time reaching the thermal detection position along the roller way of the second plate blank meets a preset condition, the second plate blank is a plate blank in a heating furnace adjacent to the target heating furnace, the preset condition is that the difference value between the second time and the first time is a set value, the steel tapping time of the plate blank in each heating furnace is controlled, the steel tapping rhythm is further controlled, the waste of rolling gap time between the adjacent plate blanks is avoided, and the rolling efficiency is improved.
Example two
Based on the same inventive concept, the embodiment of the invention also provides a control device for the tapping rhythm of the heating furnace, which is applied to a control system of a plurality of heating furnaces, wherein the plurality of heating furnaces are sequentially arranged along the direction of a roller way, a head end heating furnace is closest to a rough rolling inlet, a plate blank arrives on the roller way after tapping from the heating furnaces, and arrives at the rough rolling inlet along with the roller way, a detection grating is arranged at an outlet of each heating furnace, and a distance is kept between the plate blank and a furnace wall of the heating furnace, as shown in fig. 3, the device comprises:
the obtaining module 301 is configured to obtain a first time from tapping to a time when a first slab reaches a thermal detection position along the roller way, where the thermal detection is a joint between the heating furnace and the rough rolling, and the first slab is a slab in a target heating furnace;
the control module 302 is configured to control the tapping time of the second slab, so that a second time from tapping to reaching the thermal detection position along the roller way for the second slab meets a preset condition, where the second slab is a slab in a heating furnace adjacent to the target heating furnace, and a difference between the second time and the first time is a set value.
In an optional implementation manner, the obtaining module 301 includes:
the first acquisition unit is used for acquiring third time from steel tapping to the arrival of the first plate blank on the roller way;
the second acquisition unit is used for acquiring fourth time when the first plate blank passes through the furnace wall along the roller way and arrives at the thermal detection position;
an obtaining unit, configured to obtain the first time based on the third time and the fourth time.
In an alternative embodiment, the first obtaining unit is configured to:
the detection grating is used for detecting the position of the first slab, and the detection grating is used for detecting the position of the first slab;
the fifth time for the tapping machine to drag the first slab, the sixth time for the tapping machine to ascend and descend and the seventh time for the furnace door of the heating furnace to reach a half-open position are obtained;
and obtaining a third time from tapping to reaching the roller way for the first slab based on the fifth time, the sixth time and the seventh time.
In an optional implementation, the first obtaining unit includes:
the first acquiring subunit is used for acquiring a first preset distance between a forward speed reducing point of the steel tapping machine and a steel tapping front end, a second preset distance between a rear leg speed reducing point of the steel tapping machine and a roller way central line, a third preset distance exceeding the detection grating during steel tapping of the first slab, a fourth preset distance between a head of the steel tapping machine and the detection grating, a fifth preset distance between the detection grating and the roller way central line, a first speed of forward acceleration, a second speed of forward deceleration, a third speed of backward acceleration and a fourth speed of backward deceleration of the steel tapping machine;
and the obtaining subunit is configured to obtain a fifth time for the tapping machine to drag the first slab based on the first preset distance, the second preset distance, the third preset distance, the fourth preset distance, the fifth preset distance, and the first speed, the second speed, the third speed, and the fourth speed.
In an alternative embodiment, a subunit is obtained for:
and obtaining the fifth time of the first slab from tapping to the roller way according to the following formula:
t3＝(L4-L3+w×2/3-0.5)/v31+0.5/v32+L5-L3+w/2-0.5)/v41+0.5/v42
wherein, L3 is the third preset distance, L4 is the fourth preset distance, L5 is the fifth preset distance, first preset distance with the second preset distance is 0.5, v31 is the first speed, v32 is the second speed, v41 is the third speed, v42 is the fourth speed, 2/3 is that the tapping machine stretches to 2/3 department of first slab, t3 is the fifth time.
In an optional implementation, the second obtaining unit includes:
acquiring the acceleration and the conveying speed of the roller way;
obtaining the acceleration duration and the acceleration distance of the first plate blank in the acceleration process based on the acceleration and the conveying speed of the roller way;
and acquiring a sixth preset distance between the first plate blank and the thermal detection position when the first plate blank arrives on the roller way, and acquiring fourth time for the first plate blank to arrive at the thermal detection position along the roller way through the furnace wall based on the acceleration duration, the acceleration distance, the conveying speed and the sixth preset distance.
In an alternative embodiment, the second obtaining unit is configured to:
and obtaining the fourth time for the first plate blank to reach the thermal detection position along the roller way through the furnace wall according to the following formula:
T1＝t+(L1+L2-l)/v
l＝a×t×t/2
wherein a is an acceleration, T is the acceleration time period, L is the acceleration distance, v is the carrying speed, L1+ L2 is the sixth preset distance, and T1 is the fourth time.
EXAMPLE III
Based on the same inventive concept, the embodiment of the present invention provides a computer device, as shown in fig. 4, including a memory 404, a processor 402, and a computer program stored on the memory 404 and executable on the processor 402, wherein the processor 402 executes the program to implement the steps of the above-mentioned method for controlling the tapping rhythm of the heating furnace.
Where in fig. 4 a bus architecture (represented by bus 400) is shown, bus 400 may include any number of interconnected buses and bridges, and bus 400 links together various circuits including one or more processors, represented by processor 402, and memory, represented by memory 404. The bus 400 may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. A bus interface 406 provides an interface between the bus 400 and the receiver 401 and transmitter 403. The receiver 401 and the transmitter 403 may be the same element, i.e., a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 402 is responsible for managing the bus 400 and general processing, while the memory 404 may be used for storing data used by the processor 402 in performing operations.
Example four
Based on the same inventive concept, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, realizes the steps of the above-mentioned method for controlling the tapping rhythm of a heating furnace.
The algorithms and displays presented herein are not inherently related to any particular computer, virtual machine, or other apparatus. Various general purpose systems may also be used with the teachings herein. The required structure for constructing such a system will be apparent from the description above. Moreover, the present invention is not directed to any particular programming language. It is appreciated that a variety of programming languages may be used to implement the teachings of the present invention as described herein, and any descriptions of specific languages are provided above to disclose the best mode of the invention.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be interpreted as reflecting an intention that: that the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
Those skilled in the art will appreciate that the modules in the device in an embodiment may be adaptively changed and disposed in one or more devices different from the embodiment. The modules or units or components of the embodiments may be combined into one module or unit or component, and furthermore they may be divided into a plurality of sub-modules or sub-units or sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features and/or processes or elements are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
Furthermore, those skilled in the art will appreciate that while some embodiments herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.
The various component embodiments of the invention may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. It will be appreciated by those skilled in the art that a microprocessor or Digital Signal Processor (DSP) may be used in practice to implement some or all of the functions of some or all of the components of the control means, computer device, of the furnace tapping tempo according to embodiments of the present invention. The present invention may also be embodied as apparatus or device programs (e.g., computer programs and computer program products) for performing a portion or all of the methods described herein. Such programs implementing the present invention may be stored on computer-readable media or may be in the form of one or more signals. Such a signal may be downloaded from an internet website or provided on a carrier signal or in any other form.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
Claims (10)
1. A control method of heating furnace tapping rhythm is applied to a control system of a plurality of heating furnaces, the plurality of heating furnaces are sequentially arranged along the direction of a roller way, a head end heating furnace is closest to a rough rolling inlet, a plate blank arrives on the roller way after tapping from the heating furnace, and arrives at the rough rolling inlet along with the roller way, a detection grating is arranged at the outlet of each heating furnace, and a distance is kept between the plate blank and a furnace wall of the heating furnace, and the control method is characterized by comprising the following steps:
acquiring first time from steel tapping to the time when a first plate blank reaches a thermal detection position along the roller way, wherein the thermal detection position is a joint of a heating furnace and rough rolling, and the first plate blank is a plate blank in a target heating furnace;
and controlling the tapping time of the second slab so that the second time from tapping to the time when the second slab reaches the thermal detection position along the roller way meets a preset condition, wherein the second slab is a slab in a heating furnace adjacent to the target heating furnace, and the preset condition is that the difference value between the second time and the first time is a set value.
2. The method according to claim 1, characterized in that said taking a first slab for a first time from tapping to reaching a thermal test along said roller table comprises:
acquiring third time from tapping to the arrival of the first plate blank on the roller way;
acquiring fourth time for the first plate blank to reach the thermal detection position along the roller way through the furnace wall;
and obtaining the first time based on the third time and the fourth time.
3. The method according to claim 2, characterized in that said taking a third time of the first slab from tapping to reaching the roller table comprises:
when a first plate blank is detected through the detection grating, controlling a tapping machine to drag the first plate blank onto the roller way from the position of the detection grating, wherein the tapping machine is positioned at the tapping position of the heating furnace;
acquiring fifth time for dragging the first plate blank by the tapping machine, sixth time for ascending and descending the tapping machine and seventh time for the furnace door of the heating furnace to reach a half-open position;
and obtaining a third time from tapping to reaching the roller way of the first plate blank based on the fifth time, the sixth time and the seventh time.
4. The method according to claim 3, characterized in that said taking a fifth time at which said tapping machine drags said first slab comprises:
acquiring a first preset distance between a forward speed reducing point of the steel tapping machine and a steel tapping front end, a second preset distance between a rear leg speed reducing point of the steel tapping machine and a roller way center line, a third preset distance exceeding the detection grating during steel tapping of the first slab, a fourth preset distance between a head of the steel tapping machine and the detection grating, a fifth preset distance between the detection grating and the roller way center line, a first speed of forward acceleration, a second speed of forward deceleration, a third speed of backward acceleration and a fourth speed of backward deceleration of the steel tapping machine;
and obtaining a fifth time for dragging the first slab by the tapping machine based on the first preset distance, the second preset distance, the third preset distance, the fourth preset distance, the fifth preset distance, the first speed, the second speed, the third speed and the fourth speed.
5. The method of claim 3, wherein said obtaining a fifth time for said first slab to reach said roller table from tapping based on said first preset distance, said second preset distance, said third preset distance, said fourth preset distance, said fifth preset distance, and said first speed, second speed, third speed, fourth speed comprises:
obtaining a fifth time for the first slab to reach the roller table from the steel tapping according to the following formula:
t3＝(L4-L3+w×2/3-0.5)/v31+0.5/v32+L5-L3+w/2-0.5)/v41+0.5/v42
wherein, L3 is the third preset distance, L4 is the fourth preset distance, L5 is the fifth preset distance, first preset distance with the second preset distance is 0.5, v31 is the first speed, v32 is the second speed, v41 is the third speed, v42 is the fourth speed, 2/3 is that the tapping machine stretches to 2/3 department of first slab, t3 is the fifth time.
6. The method of claim 2, wherein said obtaining a fourth time for said first slab to travel along said roller track past said furnace wall to said thermal test site comprises:
acquiring the acceleration and the conveying speed of the roller way;
obtaining the acceleration duration and the acceleration distance of the first plate blank in the acceleration process based on the acceleration and the conveying speed of the roller way;
and acquiring a sixth preset distance between the first plate blank and the thermal detection position when the first plate blank arrives on the roller way, and acquiring fourth time for the first plate blank to arrive at the thermal detection position along the roller way through the furnace wall based on the acceleration duration, the acceleration distance, the conveying speed and the sixth preset distance.
7. The method of claim 6, wherein obtaining a fourth time for the first slab to follow the roller bed through the furnace wall to the thermal test site based on the acceleration duration, the acceleration distance, the transport speed, and the sixth predetermined distance comprises:
and obtaining the fourth time for the first plate blank to reach the thermal detection position through the furnace wall along the roller way according to the following formula:
T1＝t+(L1+L2-l)/v
l＝a×t×t/2
wherein a is an acceleration, T is the acceleration time period, L is the acceleration distance, v is the carrying speed, L1+ L2 is the sixth preset distance, and T1 is the fourth time.
8. The utility model provides a controlling means of heating furnace tapping rhythm, is applied to among the control system of many heating furnaces, many heating furnaces arrange in order along the roll table direction, and the head end heating furnace is nearest apart from the rough rolling entry, and the slab is followed reach after the heating furnace tapping on the roll table to along with the roll table arrives the rough rolling entry, set up the detection grating in every heating furnace exit, keep apart from between the furnace wall of slab and heating furnace, its characterized in that includes:
the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring the first time from steel tapping to the time when a first plate blank reaches a thermal detection position along a roller way, the thermal detection position is the joint of a heating furnace and rough rolling, and the first plate blank is the plate blank in any heating furnace;
and the control module is used for controlling the tapping time of the second slab so that the second time from tapping to the time from reaching the thermal detection position along the roller way of the second slab meets a preset condition, the second slab is a slab in a heating furnace adjacent to any heating furnace, and the preset condition is that the difference value between the second time and the first time is a set value.
9. A computer arrangement comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the method steps of any of claims 1-7 when executing the program.
10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the method steps of any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210571027.0A CN114985475A (en) | 2022-05-24 | 2022-05-24 | Method and device for controlling tapping rhythm of heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210571027.0A CN114985475A (en) | 2022-05-24 | 2022-05-24 | Method and device for controlling tapping rhythm of heating furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114985475A true CN114985475A (en) | 2022-09-02 |
Family
ID=83028448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210571027.0A Pending CN114985475A (en) | 2022-05-24 | 2022-05-24 | Method and device for controlling tapping rhythm of heating furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114985475A (en) |
-
2022
- 2022-05-24 CN CN202210571027.0A patent/CN114985475A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2020119674A1 (en) | Scheduling method, scheduling apparatus, computer-readable storage medium and electronic device | |
| JP2964851B2 (en) | Operation planning method for parts delivery service, device therefor, and parts delivery service management method | |
| SE1251407A1 (en) | Device and method for evaluation of forward speed including vehicle train formation | |
| CN111438198B (en) | Control method and device for tension roller set | |
| CN111438193B (en) | Control method and control system for preventing rear-end collision during rolling of rough rolling slab | |
| CN108734319A (en) | A kind of method and appointment and queuing device of driving school's practice appointment and queuing | |
| EP0631239A3 (en) | Serial data transfer method | |
| US20210312807A1 (en) | Transportation system, service management device, and service management method | |
| JPH1166498A (en) | Method for group controlling traveling vehicle | |
| CN114985475A (en) | Method and device for controlling tapping rhythm of heating furnace | |
| CN113205277B (en) | Workshop production and crown block cooperative scheduling method and device based on space-time rule | |
| CN116205620A (en) | Production scheduling method and device for production line and electronic equipment | |
| CN111191904A (en) | Intelligent vehicle formation method and device, electronic equipment and storage medium | |
| CN115116245A (en) | Method and system for controlling dynamic induction signals of intersection in vehicle mixed traffic environment | |
| CN113306603B (en) | Urban rail transit jump stop operation control method and system | |
| CN113649412A (en) | Hot rolling wire binding control method and device | |
| CN113042544A (en) | Method and device for acquiring strip steel tailing discarding deceleration starting point | |
| CN112116259A (en) | Intelligent scheduling method and device based on time interval rule automatic queuing | |
| CN1242863C (en) | Method for controlling material flos of double-casting machine single roller way double-heating furnace | |
| CN110842033A (en) | Method and system for improving TMCP steel plate water cooling quality | |
| CN118229166B (en) | Furniture digital logistics management method | |
| JPH08282968A (en) | Operation control device for plural sets of cranes | |
| CN117361070A (en) | Accurate positioning control method for high-speed conveying mechanism | |
| CN110406568A (en) | The balance control method and system of section multiple row vehicle | |
| CN114481281B (en) | Electroplating production line production control method, device and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |