CN117887954A - Heating furnace steel loading positioning control method and device, electronic equipment and medium - Google Patents
Heating furnace steel loading positioning control method and device, electronic equipment and medium Download PDFInfo
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- CN117887954A CN117887954A CN202410009979.2A CN202410009979A CN117887954A CN 117887954 A CN117887954 A CN 117887954A CN 202410009979 A CN202410009979 A CN 202410009979A CN 117887954 A CN117887954 A CN 117887954A
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 162
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 108
- 239000010959 steel Substances 0.000 title claims abstract description 108
- 238000000034 method Methods 0.000 title claims abstract description 69
- 238000005096 rolling process Methods 0.000 claims abstract description 84
- 238000009826 distribution Methods 0.000 claims abstract description 39
- 230000008569 process Effects 0.000 claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 17
- 238000012937 correction Methods 0.000 claims description 44
- 238000001514 detection method Methods 0.000 claims description 22
- 230000009467 reduction Effects 0.000 claims description 22
- 238000004590 computer program Methods 0.000 claims description 12
- 230000008859 change Effects 0.000 claims description 8
- 238000003860 storage Methods 0.000 claims description 5
- 230000033764 rhythmic process Effects 0.000 abstract description 5
- 230000001276 controlling effect Effects 0.000 description 34
- 238000010586 diagram Methods 0.000 description 7
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- 238000004364 calculation method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
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- 238000010079 rubber tapping Methods 0.000 description 1
Classifications
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- 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
- C21D11/00—Process control or regulation for heat treatments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B39/14—Guiding, positioning or aligning work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/004—Heating 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
- C21D9/0006—Details, accessories not peculiar to any of the following furnaces
- C21D9/0012—Rolls; Roll arrangements
-
- 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
- C21D9/0081—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for slabs; for billets
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- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Control Of Heat Treatment Processes (AREA)
Abstract
The invention discloses a heating furnace steel loading positioning control method, a heating furnace steel loading positioning control device, electronic equipment and a heating furnace steel loading positioning control medium, wherein the heating furnace steel loading positioning control method comprises the following steps: in the process of loading steel in a heating furnace, obtaining specification information, a furnace loading number and a material distribution mode of a feeding plate blank; determining a corresponding preset positioning value when a slab enters a furnace front roller way of a heating furnace based on specification information, a furnace entering number, a distribution mode and set heating furnace parameter information; controlling the steel-loading roller way to rotate to drive the slab to run, and controlling a motor encoder of the stokehold roller way to measure the length of the slab entering the stokehold roller way in the slab running process to obtain encoder values; if the encoder value is larger than or equal to the preset positioning value, judging that the plate blank positioning is finished, and controlling the steel-loading roller to stop running. The method can accurately and rapidly position the steel loading process of the heating furnace, and further improves the steel loading capacity and rolling rhythm of the heating furnace plate blank.
Description
Technical Field
The invention relates to the technical field of heating furnace control, in particular to a heating furnace steel loading positioning control method, a heating furnace steel loading positioning control device, electronic equipment and a heating furnace steel loading positioning control medium.
Background
And feeding the plate blank into the hot-rolling heating furnace by a steel loading roller way, conveying the plate blank into a designated heating furnace, positioning the plate blank according to the length of the plate blank and the distribution mode of the plate blank in the conveying process, and starting the furnace loading work after the plate blank positioning is finished. Therefore, the positioning efficiency directly influences the tapping rhythm, and simultaneously influences the heating effect of the slab in the furnace and the safe and stable operation.
However, in the running process of the heating furnace, the condition of manually starting the roller way for positioning exists, meanwhile, certain errors exist in the positioning of the plate blanks under different conditions due to the fact that the specifications of the feeding plate blanks and the distribution modes set by issuing are alternately changed, the conventional method often needs operators to manually intervene the roller way for forward and backward rotation to ensure the plate blank positioning effect, on one hand, the labor intensity of operation is increased, and on the other hand, the manual intervention seriously influences the steel loading progress to cause the rolling mill to stop rolling when the material is to be fed.
Disclosure of Invention
According to the method, the device, the electronic equipment and the medium for positioning and controlling the steel loading of the heating furnace, the steel loading process of the heating furnace can be accurately and rapidly positioned, and therefore the steel loading capacity and the rolling rhythm of a plate blank of the heating furnace are improved.
In a first aspect, the present invention provides, according to an embodiment of the present invention, the following technical solutions:
a heating furnace steel loading positioning control method comprises the following steps:
in the process of loading steel in a heating furnace, obtaining specification information, a furnace loading number and a material distribution mode of a feeding plate blank; based on the specification information, the furnace number, the distribution mode and the set heating furnace parameter information, determining a corresponding preset positioning value when the slab enters a heating furnace front roller way; controlling a steel loading roller way to rotate so as to drive the slab to run, and controlling a motor encoder of a furnace front roller way of the heating furnace to measure the length of the slab entering the furnace front roller way in the running process of the slab so as to obtain encoder values; if the encoder value is larger than or equal to the preset positioning value, judging that the plate blank positioning is completed, and controlling the steel loading roller to stop running.
Preferably, the determining, based on the specification information, the furnace number, the distribution mode and the set heating furnace parameter information, a preset positioning value corresponding to the slab entering the heating furnace front roller way includes: determining a positioning mode of the slab based on the distribution mode, wherein the positioning mode comprises rolling side positioning, non-rolling side positioning and middle positioning; based on the specification information, the furnace entering number and the positioning mode, determining correction values of the slab in different positioning modes; and determining a corresponding preset positioning value when the slab enters a furnace front roller way of the heating furnace based on the set heating furnace parameter information and the correction values of the slab in different positioning modes.
Preferably, the determining, based on the set parameter information of the heating furnace and the correction values of the slab in different positioning modes, a preset positioning value corresponding to the slab entering a roller way in front of the heating furnace includes: if the positioning mode is the rolling side positioning, determining a corresponding preset positioning value when the slab enters a heating furnace front roller way based on the correction value of the rolling side positioning and the first distance, the second distance, the third distance, the specification information, the steel loading roller way diameter, the roller way motor reduction ratio and the resolution of the motor encoder in the heating furnace parameter information; the first distance is the distance between the steel-loading furnace wall on the rolling side and the steel-loading furnace wall on the non-rolling side of the heating furnace, the second distance is the horizontal distance between the position detection device between the front roller table and the upper group of roller tables of the front roller table and the steel-loading furnace wall on the non-rolling side, and the third distance is the horizontal distance between the head of the slab and the steel-loading furnace wall on the rolling side.
Preferably, the method further comprises: if the positioning mode is the non-rolling side positioning, determining a corresponding preset positioning value when the slab enters a roller way in front of a heating furnace based on a correction value, the second distance, the fourth distance, the diameter of the steel loading roller way, the reduction ratio of a roller way motor and the resolution ratio of a motor encoder; and the fourth distance is the horizontal distance between the tail part of the slab and the steel-loading furnace wall at the non-rolling side.
Preferably, the method further comprises: if the positioning mode is the intermediate positioning, determining a corresponding preset positioning value when the slab enters a heating furnace front roller way based on the correction value, the first distance, the second distance, the specification information, the diameter of the steel loading roller way, the reduction ratio of the roller way motor and the resolution ratio of the motor encoder.
Preferably, the controlling the steel loading roller to rotate drives the slab to run further comprises: detecting the running position of the slab; and controlling the steel loading roller way to be adjusted according to a preset roller way speed change rule based on the running position, and running the slab onto a roller way in front of the heating furnace.
Preferably, the controlling the steel charging roller way of the heating furnace to rotate comprises: controlling a steel loading roller way of the heating furnace to rotate at a first speed; based on the operation position, controlling the steel loading roller way to be adjusted according to a preset roller way speed change rule, and operating the slab onto a roller way in front of the heating furnace, wherein the method comprises the following steps: if the slab is monitored to reach the upper group of roller tables of the stokehold roller tables, controlling the steel loading roller tables to rotate at a second speed; if the position detection device of the tail part of the slab, which leaves the furnace front roller way and the upper group of roller ways of the furnace front roller way, is monitored, the steel loading roller way is controlled to rotate at a third speed, the slab is operated to the furnace front roller way of the heating furnace, wherein the second speed is smaller than the first speed, and the third speed is smaller than the second speed.
In a second aspect, the present invention provides, according to an embodiment of the present invention, the following technical solutions:
a heating furnace steel loading positioning control device, comprising:
the acquisition module is used for acquiring specification information, a furnace entering number and a material distribution mode of the feeding plate blank in the steel loading process of the heating furnace;
the positioning value determining module is used for determining a corresponding preset positioning value when the slab enters a heating furnace front roller way based on the specification information, the furnace entering number, the distribution mode and the set heating furnace parameter information;
the numerical value acquisition module is used for controlling the steel loading roller to rotate so as to drive the slab to run, and controlling a motor encoder of a furnace front roller way of the heating furnace to measure the length of the slab entering the furnace front roller way in the running process of the slab so as to acquire the numerical value of the encoder;
and the positioning module is used for judging whether the plate blank is positioned based on the encoder value and the preset positioning value, and controlling the steel loading roller to stop running when the positioning is determined to be finished.
In a third aspect, the present invention provides, according to an embodiment of the present invention, the following technical solutions:
an electronic device, comprising: a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the method of any one of the preceding aspects when the program is executed.
In a fourth aspect, the present invention provides, according to an embodiment of the present invention, the following technical solutions:
a computer readable storage medium having stored thereon a computer program which when executed by a processor realizes the steps of the method according to any of the preceding aspects.
One or more technical solutions provided in the embodiments of the present application at least have the following technical effects or advantages:
according to the heating furnace steel loading positioning control method provided by the embodiment of the invention, the preset positioning value corresponding to the plate blank can be determined based on specification information, the furnace loading number, the distribution mode and the heating furnace parameter information; measuring the length of the slab entering the stokehole roller way based on the encoder of the stokehole roller way to obtain the encoder value; and comparing the preset positioning value with the encoder value, and determining whether the plate blank is positioned by judging whether the encoder value reaches the preset positioning value. The method can adaptively adjust the positioning data of the plate blank based on the specification information of the feeding plate blank, the feeding number and the distribution mode of the issuing setting, realizes accurate positioning, and can accurately control the plate blank under the corresponding heating furnace according to the preset positioning value determined by the parameter information of the heating furnace, thereby improving the accuracy, the safety and the steel loading capacity and the rolling rhythm of the heating furnace plate blank. The method solves the problems that in the operation process of the heating furnace, manual roller way opening positioning exists and certain errors exist in the positioning of the plate blanks under different conditions due to the alternating between the specification of the feeding plate blanks and the distribution mode of the issuing setting, reduces the labor intensity of operation, ensures the steel loading progress, further reduces the unplanned downtime, and also achieves the technical effect of improving the operation rate of the production line.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a heating furnace steel loading positioning control method in an embodiment of the invention;
FIG. 2 is a schematic structural view of a steel loading positioning control device of a heating furnace according to an embodiment of the invention;
fig. 3 is a schematic structural diagram of an electronic device according to an embodiment of the invention.
Detailed Description
According to the method, the device, the electronic equipment and the medium for positioning and controlling the steel loading of the heating furnace, the steel loading process of the heating furnace can be accurately and rapidly positioned, and therefore the steel loading capacity and the rolling rhythm of a plate blank of the heating furnace are improved.
The technical scheme of the embodiment of the application aims to solve the technical problems, and the overall thought is as follows:
a heating furnace steel loading positioning control method comprises the following steps: in the process of loading steel in a heating furnace, obtaining specification information, a furnace loading number and a material distribution mode of a feeding plate blank; determining a corresponding preset positioning value when a slab enters a furnace front roller way of a heating furnace based on specification information, a furnace entering number, a distribution mode and set heating furnace parameter information; controlling the steel-loading roller way to rotate to drive the slab to run, and controlling a motor encoder of a furnace front roller way of a heating furnace to measure the length of the slab entering the furnace front roller way in the running process of the slab, so as to obtain the encoder value; if the encoder value is larger than or equal to the preset positioning value, judging that the plate blank positioning is finished, and controlling the steel-loading roller to stop running.
In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.
In a first aspect, an embodiment of the present invention provides a method for positioning and controlling steel loading in a heating furnace, specifically, as shown in fig. 1, the method includes the following steps S101 to S104:
step S101, in the process of loading steel in a heating furnace, obtaining specification information, a furnace loading number and a material distribution mode of a material loading plate blank;
step S102, determining a corresponding preset positioning value when the slab enters a furnace front roller way of a heating furnace based on the specification information, the furnace entering number, the distribution mode and the set heating furnace parameter information;
and step S103, controlling a steel loading roller to rotate so as to drive the slab to run, and controlling a motor encoder of a furnace front roller way of the heating furnace to measure the length of the slab entering the furnace front roller way in the running process of the slab, so as to obtain the encoder value.
It should be noted that, the execution main body of the positioning control method provided in the application may be a primary control system formed by a programmable logic controller (Programmable Logic Controller, PLC) or a single chip microcomputer.
In the specific implementation process, the first stage of the heating furnace receives PDI (plate blank data) information such as a plate blank feeding number, a material distribution mode, a length and the like issued by the second stage system, wherein the plate blank material distribution mode can also refer to a furnace row number, and different material distribution modes of the plate blanks correspond to different positioning modes.
The specification information of the slab can comprise length, width and the like, and the furnace entering number comprises a 1# furnace, a 2# furnace, a 3# furnace, a 4# furnace and the like.
It should be noted that after the slab reaches the roller way in front of the heating furnace, the slab will enter the heating furnace through the space between the rolling side and the non-rolling side of the heating furnace, the head of the slab is close to the rolling side, the tail of the slab is close to the non-rolling side, in order to ensure that slabs with different specification lengths can smoothly enter the heating furnace through the space between the rolling side and the non-rolling side, collision is avoided, and the preset positioning value corresponding to the slab can be determined based on the parameter information of the heating furnace.
In a specific embodiment, determining a preset positioning value corresponding to a slab entering a furnace front roller way of a heating furnace based on specification information, a furnace entering number, a distribution mode and set heating furnace parameter information may include: determining a positioning mode of the slab based on a material distribution mode, wherein the positioning mode comprises rolling side positioning, non-rolling side positioning and middle positioning; based on the specification information, the furnace number and the positioning mode, determining correction values of the slab in different positioning modes; and determining a corresponding preset positioning value when the slab enters a furnace front roller way of the heating furnace based on the set heating furnace parameter information and the correction values of the slab in different positioning modes.
Specifically, determining the positioning mode of the slab based on the distribution mode may include: if the distribution mode is the first distribution mode (for example, the number of the secondary issued furnace array is equal to 3), the slab is positioned in the middle; if the material distribution mode is the second material distribution mode (for example, the number of a secondary issued furnace array is equal to 4), the slab is positioned at the rolling side; if the distribution mode is the third distribution mode (for example, the number of the secondary issued furnace array is equal to 5), the slab is positioned in a non-rolling way.
The rolling side positioning may refer to positioning based on the rolling side position of the heating furnace, and the non-rolling side positioning may refer to positioning based on the non-rolling side position of the heating furnace.
In one embodiment, determining the correction value of the slab in different positioning modes based on the specification information, the furnace charging number and the positioning modes may include: and determining the correction value of the slab in different positioning modes by inquiring a preset correction value table based on the slab length, the furnace entering number and the positioning mode. The preset correction value table can be established based on previous measurement data or empirical data. Specifically, the preset correction value is shown in the following table 1
The following is shown:
TABLE 1
5 For example, when the furnace number is 1# furnace, the slab length is 9.9 m.ltoreq.L.ltoreq.10.2 m or L=8m, and the positioning mode is as follows
The correction value is 0.85m when the rolling side positioning or the middle positioning is performed, and the correction value is-0.1 m when the positioning mode is non-rolling side positioning; when l=10.8m, the positioning mode is rolling side positioning or middle positioning, the correction value is 0.48m, and the positioning mode is non-rolling side positioning, the correction value is 0.34m; when L is other specifications, the positioning mode is rolling side positioning or middle positioning, the correction value is 0.6m, and the positioning mode is non-rolling side positioning, and the correction value is 0.3m.
The correction value determined based on the specification information, the furnace entering number and the positioning mode of the slab can effectively ensure that the slab in different states has the optimal positioning correction value of the adaptation, and reduce the positioning error.
Specifically, based on the set heating furnace parameter information and the correction values of the slab in different positioning modes, determining the corresponding preset positioning value when the slab enters the front roller way of the heating furnace may include: if the positioning mode is rolling side positioning, determining a corresponding preset positioning value when the slab enters a heating furnace front roller way based on the correction value in the rolling side positioning and the first distance, the second distance, the third distance, the specification information, the diameter of the steel-loading roller way, the reduction ratio of the roller way motor and the resolution ratio of the motor encoder in the heating furnace parameter information.
The first distance is the distance between the steel-loading furnace wall on the rolling side and the steel-loading furnace wall on the non-rolling side of the heating furnace, the fixed value is the distance, the second distance is the horizontal distance between the front roller table and the upper group of roller tables of the front roller table, the horizontal distance between the steel-loading furnace walls on the non-rolling side is the fixed value, the position detection device can be a laser range finder for detecting the running position of a slab, and the third distance is the horizontal distance between the head of the slab and the steel-loading furnace wall on the rolling side. Alternatively, the horizontal distance between the slab head and the steel charging furnace wall may be detected by a laser rangefinder disposed near the steel charging furnace wall.
In addition, the reduction ratio of the roller way motor and the resolution of the motor encoder are set values, and the diameter of the steel-loading roller way can be obtained through measurement.
For ease of understanding, the first distance is understood to be the distance between the entry side of the steel-charging furnace wall on the rolling side and the entry side of the steel-charging furnace wall on the non-rolling side, the second distance is the horizontal distance between the front roller table and the last set of roller tables of the front roller table, and the entry side of the steel-charging furnace wall on the non-rolling side, and the third distance is the horizontal distance between the head of the slab and the entry side of the steel-charging furnace wall on the rolling side.
In one embodiment, determining the preset positioning value corresponding to the slab entering the front roller table of the heating furnace based on the correction value of the rolling side positioning and the first distance, the second distance, the third distance, the specification information, the diameter of the steel loading roller path, the reduction ratio of the roller table motor and the resolution of the motor encoder in the parameter information of the heating furnace may include:
based on the following formula: h1 Determining a preset positioning value corresponding to a slab entering a furnace front roller way of a heating furnace according to the resolution of an incremental encoder of the motor reduction ratio of = ((L1+L2-L3-L5)/(D pi));
wherein L1 is a first distance, L2 is a second distance, L3 is a third distance, L is specification information, L5 is a correction value under the positioning of a rolling side, D is the diameter of a steel-loading roller, and H1 is a preset positioning value under the positioning of the rolling side.
As another embodiment, a first protection detection device may be provided at a vertical plane between the steel charging furnace wall of the rolling side and the slab head, and a horizontal distance between the slab head and the steel charging furnace wall of the rolling side may include: the first vertical distance is the horizontal distance between the head of the slab and the first protection detection device, and the second vertical distance is the horizontal distance between the first protection detection device and the steel-loading furnace wall on the rolling side. Alternatively, the first protection detection device may be a laser rangefinder.
Further, the formula h1= ((l1+l2-L7-L8-L5)/(D pi)). Motor reduction ratio. Incremental encoder resolution, where L7 is the first vertical distance and L8 is the second vertical distance. For example, the first vertical distance L7 may be between 0-0.1m and the second vertical distance L8 may be between 0-0.25 m.
In a specific embodiment, based on the set heating furnace parameter information and the correction values of the slab in different positioning modes, determining a preset positioning value corresponding to the slab entering the front roller way of the heating furnace may further include: if the positioning mode is non-rolling side positioning, determining a corresponding preset positioning value when the slab enters a heating furnace front roller way based on a correction value, a second distance, a fourth distance, a steel loading roller way diameter, a roller way motor reduction ratio and a resolution ratio of a motor encoder; the fourth distance is the horizontal distance between the tail part of the slab and the steel-loading furnace wall at the non-rolling side.
For ease of understanding, the fourth distance may be understood as the horizontal distance between the tail of the slab and the entry side of the steel-charged furnace wall on the non-rolling side.
In one embodiment, determining the preset positioning value corresponding to the slab entering the front roller way of the heating furnace based on the correction value, the second distance, the fourth distance, the diameter of the steel loading roller way, the reduction ratio of the roller way motor and the resolution of the motor encoder under the positioning of the non-rolling side may include:
based on the formula: h2 = ((l2+l4-L6)/(D x pi)). Motor reduction ratio x incremental encoder resolution, determining a corresponding preset positioning value when a plate blank enters a furnace front roller way of a heating furnace;
wherein L2 is the second distance, L4 is the fourth distance, L6 is the correction value under the non-rolling side positioning, D is the diameter of the steel loading roller way, and H2 is the preset positioning value under the non-rolling positioning.
As another embodiment, a second protection detection device may be provided at a vertical plane between the non-rolling side steel charging furnace wall and the slab tail, and a horizontal distance between the slab tail and the non-rolling side steel charging furnace wall may include: the third vertical distance is a horizontal distance between the tail part of the slab and the second protection detection device, and the fourth vertical distance is a horizontal distance between the second protection detection device and the steel-loading furnace wall at the non-rolling side. Alternatively, the second protection detection device may be a laser rangefinder.
Further, the formula h2= ((l2+l9+l10-L6)/(D pi)). Motor reduction ratio. Incremental encoder resolution, where L9 is the third vertical distance and L10 is the fourth vertical distance. For example, the third vertical distance L9 may be between 0-0.1m and the fourth vertical distance L10 may be between 0-0.25 m.
In a specific embodiment, based on the set heating furnace parameter information and the correction values of the slab in different positioning modes, determining a preset positioning value corresponding to the slab entering the front roller way of the heating furnace may further include: if the positioning mode is intermediate positioning, determining a corresponding preset positioning value when the slab enters the front roller way of the heating furnace based on the correction value, the first distance, the second distance, the specification information, the diameter of the steel loading roller way, the reduction ratio of the roller way motor and the resolution ratio of the motor encoder in the intermediate positioning.
Specifically, based on the correction value, the first distance, the second distance, the specification information, the diameter of the steel loading roller, the reduction ratio of the roller way motor and the resolution of the motor encoder under the middle positioning, determining the corresponding preset positioning value when the slab enters the front roller way of the heating furnace can comprise:
based on the formula: h3 Determining a preset positioning value corresponding to a slab entering a furnace front roller way according to the resolution of an incremental encoder of the motor reduction ratio of (L1- (L/2) +L2-L5)/(D pi);
wherein L1 is a first distance, L2 is a second distance, L is specification information, L5 is a correction value under the positioning of a rolling side, D is the diameter of a steel-loading roller, and H3 is a preset positioning value under the middle positioning.
Further, in order to realize accurate positioning of the slab, after controlling the steel loading roller to rotate and driving the slab to run, the method can further comprise: detecting the running position of the slab; based on the running position, the steel loading roller way is controlled to be regulated according to a preset roller way speed change rule, and the slab is run on a roller way in front of the heating furnace.
In a specific embodiment, the real-time running position of the slab can be detected by a laser range finder arranged on the production line.
In order to ensure the accuracy of slab positioning and the efficiency of slab transportation and improve the production line operation rate, specifically, to control the rotation of the steel-loading roller of the heating furnace, the method can comprise the following steps: and controlling the steel loading roller way of the heating furnace to rotate at a first speed. Based on the operation position, the control plate blank is operated to the roller way in front of the heating furnace according to the preset roller way speed change rule, and the control plate blank can comprise: if the slab is monitored to reach the upper group of roller ways of the stokehold roller way, controlling the steel-loading roller way to rotate at a second speed; if the position detection device between the front roller way of the plate blank and the upper group of roller ways of the front roller way is monitored, the steel loading roller way is controlled to rotate at a third speed, the plate blank is operated to the front roller way of the heating furnace, wherein the second speed is smaller than the first speed, and the third speed is smaller than the second speed.
In actual detection, the running position of the slab can be obtained through monitoring in a periodic scanning mode.
Alternatively, the first speed may be between 80 and 100m/min, the second speed may be between 40 and 60m/min, and the third speed may be between 15 and 25 m/min. For example, the first speed is 90m/min, the second speed is 50m/min, and the third speed is 18m/min.
Specifically, at the beginning operation stage, firstly, the steel loading roller way is controlled to rotate at a higher speed of 90m/min, the plate blanks are transported quickly, when the plate blanks reach the last group of roller ways of the heating furnace front roller way, the steel loading roller way is controlled to rotate at a speed of 50m/min, partial speed reduction is realized, when the position detection device between the heating furnace front roller way and the last group of roller ways is detected that the tail parts of the plate blanks leave the heating furnace front roller way, the steel loading roller way is controlled to rotate at a speed of 18m/min, and the positioning is carried out in a low-speed state.
The position detection device arranged between the stokehold roller way and the last group of roller ways can be used for detecting the running position of the slab and determining whether the tail of the slab leaves.
In a specific embodiment, the steel loading roller way is controlled to rotate to drive the slab to run, the slab is conveyed to the front roller way of the heating furnace, and in the process of driving the slab to run, a motor encoder of the front roller way of the heating furnace is also required to be controlled to measure the length of the slab entering the front roller way, so that the encoder value is obtained.
Optionally, the motor encoder may be an incremental encoder, and the motor encoder may be mounted at the tail output end of any single roller motor in the stokehold roller way single group.
Specifically, controlling a motor encoder of a furnace front roller way of a heating furnace to measure the length of a plate blank entering the furnace front roller way to obtain an encoder value can comprise: when the tail part of the slab leaves the position detection device between the furnace front roller way and the upper group of roller ways of the furnace front roller way, the motor encoder is controlled to start counting after zero clearing, the length of the slab entering the furnace front roller way is measured, and the encoder value is obtained.
In actual detection, the encoder values may be detected by periodic scanning.
Of course, as other embodiments, the motor encoder zero clearing operation may be performed when the steel roller is rotated by the control device at the beginning.
And step S104, if the encoder value is greater than or equal to the preset positioning value, judging that the plate blank positioning is completed, and controlling the steel loading roller to stop running.
In a specific embodiment, if the encoder value is greater than or equal to the preset positioning value, the encoder value indicates that the slab has moved to the positioning position, the steel loading roller way is controlled to stop moving, and the positioning of the steel loading slab is completed.
In summary, by the method for controlling steel loading and positioning of the heating furnace provided by the embodiment of the invention, the calculation of the automatic positioning position of the slab can be realized, so that the specified distribution mode is finished on the premise that the slab is not scratched on the furnace wall, and the slab can smoothly enter the heating furnace. The method solves the problems that manual positioning is needed or manual intervention is frequently performed due to inaccurate positioning when the heating furnace is used for loading steel at present, fully improves the conveying capacity of the heating furnace plate blank, avoids the problem that the loading steel efficiency is influenced due to the plate blank loading steel positioning problem, causes the rolling mill to stop rolling when the material is to be loaded, reduces the unplanned downtime, and simultaneously achieves the technical effect of improving the production line operation rate.
In a second aspect, based on the same inventive concept, this embodiment provides a heating furnace steel loading positioning control device, as shown in fig. 2, including:
the acquisition module 401 is used for acquiring specification information, a furnace number and a material distribution mode of a feeding plate blank in the steel loading process of the heating furnace;
the positioning value determining module 402 is configured to determine a preset positioning value corresponding to when the slab enters a furnace front roller way of the heating furnace based on the specification information, the furnace number, the distribution mode and the set heating furnace parameter information;
the value acquisition module 403 is used for controlling the steel loading roller to rotate so as to drive the slab to run, and controlling a motor encoder of the heating furnace front roller way to measure the length of the slab entering the furnace front roller way in the running process of the slab so as to acquire the encoder value;
and the positioning module 404 is used for judging that the plate blank positioning is completed and controlling the steel loading roller to stop running if the encoder value is greater than or equal to the preset positioning value.
As an alternative embodiment, the positioning value determining module 402 includes:
the first determining submodule is used for determining the positioning mode of the slab based on the distribution mode, wherein the positioning mode comprises rolling side positioning, non-rolling side positioning and middle positioning;
the second determining submodule is used for determining correction values of the slab in different positioning modes based on specification information, a furnace entering number and a positioning mode;
and the third determining submodule is used for determining a corresponding preset positioning value when the slab enters the front roller way of the heating furnace based on the set heating furnace parameter information and the correction values of the slab in different positioning modes.
As an alternative embodiment, the third determining sub-module is specifically configured to: if the positioning mode is rolling side positioning, determining a corresponding preset positioning value when the slab enters a heating furnace front roller way based on the correction value in the rolling side positioning and the first distance, the second distance, the third distance, the specification information, the diameter of a steel-loading roller way, the reduction ratio of a roller way motor and the resolution ratio of a motor encoder in the heating furnace parameter information; the first distance is the distance between the steel-loading furnace wall on the rolling side and the steel-loading furnace wall on the non-rolling side of the heating furnace, the second distance is the horizontal distance between the head of the slab and the steel-loading furnace wall on the rolling side of the heating furnace, the third distance is the horizontal distance between the front roller way and the steel-loading furnace wall on the rolling side of the heating furnace, and the second distance is the position detection device between the front roller way and the upper group of roller ways of the front roller way.
As an alternative embodiment, the third determining sub-module is specifically configured to: if the positioning mode is non-rolling side positioning, determining a corresponding preset positioning value when the slab enters a heating furnace front roller way based on a correction value, a second distance, a fourth distance, a steel loading roller way diameter, a roller way motor reduction ratio and a resolution ratio of a motor encoder; the fourth distance is the horizontal distance between the tail part of the slab and the steel-loading furnace wall at the non-rolling side.
As an alternative embodiment, the third determining sub-module is specifically configured to: if the positioning mode is intermediate positioning, determining a corresponding preset positioning value when the slab enters the front roller way of the heating furnace based on the correction value, the first distance, the second distance, the specification information, the diameter of the steel loading roller way, the reduction ratio of the roller way motor and the resolution ratio of the motor encoder in the intermediate positioning.
As an alternative embodiment, the value obtaining module 403 includes:
the operation position detection submodule is used for detecting the operation position of the slab;
the speed control sub-module is used for controlling the steel loading roller to be adjusted according to a preset roller way speed change rule based on the running position, and running the slab onto a roller way in front of the heating furnace.
As an alternative embodiment, the controlling the rotation of the steel loading roller of the heating furnace includes: controlling a steel loading roller way of the heating furnace to rotate at a first speed; the speed control submodule is specifically configured to:
based on the operation position, the control plate blank is operated to a roller way in front of the heating furnace according to a preset roller way speed change rule, and the control plate blank comprises the following steps: if the slab is monitored to reach the upper group of roller ways of the stokehold roller way, controlling the steel-loading roller way to rotate at a second speed; if the position detection device between the front roller way of the plate blank and the upper group of roller ways of the front roller way is monitored, the steel loading roller way is controlled to rotate at a third speed, the plate blank is operated to the front roller way of the heating furnace, wherein the second speed is smaller than the first speed, and the third speed is smaller than the second speed.
The above modules may be implemented by software code, in which case the above modules may be stored in a memory of the control device. The above modules may equally be implemented by hardware, such as an integrated circuit chip.
The implementation principle and the produced technical effects of the steel loading positioning control device for the heating furnace provided by the embodiment of the invention are the same as those of the embodiment of the method, and for the sake of brief description, the corresponding contents in the embodiment of the method can be referred to for the parts of the embodiment of the device which are not mentioned.
In a third aspect, based on the same inventive concept, the present embodiment provides an electronic device 500, as shown in fig. 3, including: a memory 501, a processor 502 and a computer program 503 stored in the memory and executable on the processor, wherein the processor 502 implements the steps of the method for controlling positioning of charging steel in a furnace according to the first aspect when executing the program.
Since the electronic device described in this embodiment is an electronic device used to implement the heating furnace steel positioning control method in this embodiment, based on the heating furnace steel positioning control method described in this embodiment, those skilled in the art can understand the specific implementation of the electronic device in this embodiment and various modifications thereof, so how the electronic device implements the method in this embodiment will not be described in detail herein. The electronic equipment adopted by those skilled in the art for implementing the positioning control of the heating furnace steel loading in the embodiment of the application is within the scope of protection intended by the application.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (10)
1. The method for positioning and controlling the steel loading of the heating furnace is characterized by comprising the following steps:
in the process of loading steel in a heating furnace, obtaining specification information, a furnace loading number and a material distribution mode of a feeding plate blank;
based on the specification information, the furnace number, the distribution mode and the set heating furnace parameter information, determining a corresponding preset positioning value when the slab enters a heating furnace front roller way;
controlling a steel loading roller way to rotate so as to drive the slab to run, and controlling a motor encoder of a furnace front roller way of the heating furnace to measure the length of the slab entering the furnace front roller way in the running process of the slab so as to obtain encoder values;
if the encoder value is larger than or equal to the preset positioning value, judging that the plate blank positioning is completed, and controlling the steel loading roller to stop running.
2. The method of claim 1, wherein determining the corresponding preset positioning value when the slab enters the furnace front roller way of the heating furnace based on the specification information, the furnace entering number, the distribution mode and the set heating furnace parameter information comprises:
determining a positioning mode of the slab based on the distribution mode, wherein the positioning mode comprises rolling side positioning, non-rolling side positioning and middle positioning;
based on the specification information, the furnace entering number and the positioning mode, determining correction values of the slab in different positioning modes;
and determining a corresponding preset positioning value when the slab enters a furnace front roller way of the heating furnace based on the set heating furnace parameter information and the correction values of the slab in different positioning modes.
3. The method according to claim 2, wherein determining the corresponding preset positioning value when the slab enters the furnace front roller way of the heating furnace based on the set heating furnace parameter information and the correction value of the slab in different positioning modes comprises:
if the positioning mode is the rolling side positioning, determining a corresponding preset positioning value when the slab enters a heating furnace front roller way based on the correction value of the rolling side positioning and the first distance, the second distance, the third distance, the specification information, the steel loading roller way diameter, the roller way motor reduction ratio and the resolution of the motor encoder in the heating furnace parameter information;
the first distance is the distance between the steel-loading furnace wall on the rolling side and the steel-loading furnace wall on the non-rolling side of the heating furnace, the second distance is the horizontal distance between the position detection device between the front roller table and the upper group of roller tables of the front roller table and the steel-loading furnace wall on the non-rolling side, and the third distance is the horizontal distance between the head of the slab and the steel-loading furnace wall on the rolling side.
4. A method as recited in claim 3, further comprising:
if the positioning mode is the non-rolling side positioning, determining a corresponding preset positioning value when the slab enters a roller way in front of a heating furnace based on a correction value, the second distance, the fourth distance, the diameter of the steel loading roller way, the reduction ratio of a roller way motor and the resolution ratio of a motor encoder;
and the fourth distance is the horizontal distance between the tail part of the slab and the steel-loading furnace wall at the non-rolling side.
5. A method as recited in claim 3, further comprising:
if the positioning mode is the intermediate positioning, determining a corresponding preset positioning value when the slab enters a heating furnace front roller way based on the correction value, the first distance, the second distance, the specification information, the diameter of the steel loading roller way, the reduction ratio of the roller way motor and the resolution ratio of the motor encoder.
6. The method of claim 1, wherein said controlling the rotation of the steel loading roller to drive the slab, further comprises:
detecting the running position of the slab;
and controlling the steel loading roller way to be adjusted according to a preset roller way speed change rule based on the running position, and running the slab onto a roller way in front of the heating furnace.
7. The method of claim 6, wherein controlling the rotation of the steel loading roller of the heating furnace comprises: controlling a steel loading roller way of the heating furnace to rotate at a first speed;
based on the operation position, controlling the steel loading roller way to be adjusted according to a preset roller way speed change rule, and operating the slab onto a roller way in front of the heating furnace, wherein the method comprises the following steps: if the slab is monitored to reach the upper group of roller tables of the stokehold roller tables, controlling the steel loading roller tables to rotate at a second speed;
if the position detection device of the tail part of the slab, which leaves the furnace front roller way and the upper group of roller ways of the furnace front roller way, is monitored, the steel loading roller way is controlled to rotate at a third speed, the slab is operated to the furnace front roller way of the heating furnace, wherein the second speed is smaller than the first speed, and the third speed is smaller than the second speed.
8. A heating furnace dress steel positioning control device, characterized by comprising:
the acquisition module is used for acquiring specification information, a furnace entering number and a material distribution mode of the feeding plate blank in the steel loading process of the heating furnace;
the positioning value determining module is used for determining a corresponding preset positioning value when the slab enters a heating furnace front roller way based on the specification information, the furnace entering number, the distribution mode and the set heating furnace parameter information;
the numerical value acquisition module is used for controlling the steel loading roller to rotate so as to drive the slab to run, and controlling a motor encoder of a furnace front roller way of the heating furnace to measure the length of the slab entering the furnace front roller way in the running process of the slab so as to acquire the numerical value of the encoder;
and the positioning module is used for judging that the plate blank positioning is finished and controlling the steel-loading roller way to stop running if the encoder value is greater than or equal to the preset positioning value.
9. An electronic device, comprising: memory, a processor and a computer program stored on the memory and executable on the processor, which processor implements the steps of the method of any one of claims 1-7 when the program is executed.
10. A computer readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, implements the steps of the method according to any one of claims 1-7.
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| CN202410009979.2A CN117887954A (en) | 2024-01-04 | 2024-01-04 | Heating furnace steel loading positioning control method and device, electronic equipment and medium |
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| CN202410009979.2A CN117887954A (en) | 2024-01-04 | 2024-01-04 | Heating furnace steel loading positioning control method and device, electronic equipment and medium |
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