CN113621754A - Method and system for accurately controlling steel retaining amount of intermediate frequency induction furnace based on angle encoder - Google Patents
Method and system for accurately controlling steel retaining amount of intermediate frequency induction furnace based on angle encoder Download PDFInfo
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- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/52—Manufacture of steel in electric furnaces
- C21C5/5241—Manufacture of steel in electric furnaces in an inductively heated furnace
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- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
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- G01B21/22—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapers; for testing the alignment of axes
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- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
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- G—PHYSICS
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- G01G—WEIGHING
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- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/52—Manufacture of steel in electric furnaces
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Abstract
The invention discloses an accurate control method for steel retaining amount of a medium-frequency induction furnace based on an angle encoder, which comprises the following steps: acquiring angle measurement data of an angle encoder in real time; calculating the volume of molten steel in the medium-frequency induction furnace in real time according to the angle measurement data to obtain a real-time molten steel volume value; recording the density value of the molten steel in the medium-frequency induction furnace, and calculating the weight of the molten steel in the medium-frequency induction furnace according to the real-time molten steel volume value and the density value of the molten steel to obtain a real-time molten steel weight value; and generating and sending control information to the medium-frequency induction furnace according to the real-time molten steel weight value and a preset steel remaining amount threshold value. The invention also discloses an accurate control system for the steel retaining quantity of the medium-frequency induction furnace based on the angle encoder. The invention relates to the technical field of control of medium-frequency induction furnaces. The invention can accurately control the steel retaining amount of the medium-frequency induction furnace by combining the angle encoder, thereby improving the working efficiency of the medium-frequency induction furnace.
Description
Technical Field
The invention relates to the technical field of control of medium-frequency induction furnaces, in particular to a method and a system for accurately controlling steel retaining quantity of a medium-frequency induction furnace based on an angle encoder.
Background
An intermediate frequency induction furnace (also referred to as an alloy furnace, an induction furnace, an energy-saving electric furnace, and hereinafter collectively referred to as an intermediate frequency induction furnace) is a container for generating high-density magnetic lines of force as metal melting by an induction coil by converting a three-phase alternating current of 50HZ into an intermediate frequency (300-. In the years, the effective volume of the medium-frequency induction furnace is increasingly larger, and at present, 90-ton medium-frequency induction furnaces are put into industrial application. In order to improve the operation rate, a certain amount of molten steel is reserved in the furnace before the medium-frequency induction furnace is melted, and the molten steel is about 10 percent of the nominal capacity when tapping, so that an initial molten pool is arranged before the next furnace cold material is added, magnetic lines of force in the furnace can be gathered, all the magnetic lines of force must pass through the initial molten pool, the initial molten pool can absorb 100 percent of generated electromagnetic heating energy, the energy can be transferred to gradually added materials through the initial molten pool which is continuously stirred, and the smelting period can be greatly shortened. The principle of the initial molten pool or the steel remained in the previous furnace is similar to that of a glass cup with a small amount of hot water remained therein and then ice blocks are put into the glass cup to melt the steel more quickly.
However, due to the special structural design of the medium-frequency induction furnace, the amount of retained molten steel cannot be accurately measured, the whole platform is in a tipping state during tapping, an operator cannot visually see the retained molten steel, the amount of retained molten steel can only be estimated by experience, the accuracy is low, and the requirement for retaining steel cannot be better met.
Disclosure of Invention
In order to overcome the above problems or at least partially solve the above problems, embodiments of the present invention provide an accurate control method and system for steel retention amount of an intermediate frequency induction furnace based on an angle encoder, which can accurately control the steel retention amount of the intermediate frequency induction furnace by combining the angle encoder, thereby improving the working efficiency of the intermediate frequency induction furnace.
The embodiment of the invention is realized by the following steps:
in a first aspect, an embodiment of the present invention provides an accurate control method for steel retention of a medium frequency induction furnace based on an angle encoder, including the following steps:
acquiring angle measurement data of an angle encoder in real time;
calculating the volume of molten steel in the medium-frequency induction furnace in real time according to the angle measurement data to obtain a real-time molten steel volume value;
recording the density value of the molten steel in the medium-frequency induction furnace, and calculating the weight of the molten steel in the medium-frequency induction furnace according to the real-time molten steel volume value and the density value of the molten steel to obtain a real-time molten steel weight value;
and generating and sending control information to the medium-frequency induction furnace according to the real-time molten steel weight value and a preset steel remaining amount threshold value.
Medium frequency induction furnaces, also known as alloying furnaces, induction furnaces, energy-saving electric furnaces and the like, are metallurgical equipment utilizing electromagnetic induction heating. In order to solve the technical problem that the working efficiency of the medium frequency induction furnace is low because an operator cannot see steel left in the medium frequency induction furnace due to the fact that the medium frequency induction furnace is overturned outwards, the invention accurately measures the tilting angle of the medium frequency induction furnace when the medium frequency induction furnace is tapped in real time through an angle encoder arranged on the medium frequency induction furnace, a furnace body of the medium frequency induction furnace is regarded as an inverted round table cylinder, the volume of a container is calculated according to the tilting angle, the weight of molten steel (liquid metal) left in the volume of the medium frequency induction furnace is calculated according to metal density, then the weight value of the molten steel obtained through real-time calculation is compared and analyzed with a preset steel left threshold value, whether the weight value of the molten steel is equal to or lower than the preset steel left threshold value or not is analyzed, if the weight value of the molten steel is equal to or lower than the preset steel left threshold value, control information is immediately generated, the medium frequency induction furnace is timely controlled to stop overturning, the steel left amount is ensured, and the next steel casting operation of the medium frequency induction furnace is facilitated, the operation efficiency is improved.
Based on the first aspect, in some embodiments of the present invention, the method for generating and sending control information to the intermediate frequency induction furnace according to the real-time molten steel weight value and the preset steel remaining amount threshold includes the following steps:
judging whether the real-time molten steel weight value is not greater than a preset steel remaining amount threshold value or not, if so, generating and sending out operation stopping control information to the medium-frequency induction furnace, and controlling the medium-frequency induction furnace to stop the furnace tilting action; if not, generating and sending normal operation control information to the medium frequency induction furnace.
Based on the first aspect, in some embodiments of the present invention, the method for accurately controlling steel retention of the intermediate frequency induction furnace based on the angle encoder further includes the following steps:
and generating and sending alarm prompt information according to the real-time molten steel weight value and a preset steel remaining amount threshold value.
Based on the first aspect, in some embodiments of the present invention, the method for accurately controlling steel retention of the intermediate frequency induction furnace based on the angle encoder further includes the following steps:
judging whether tapping of the medium-frequency induction furnace is finished or not according to angle data in the angle measurement data, corresponding residence time and preset tapping parameters, and if so, recording the furnace age of the medium-frequency induction furnace; if not, continuing judging until tapping is finished.
In a second aspect, an embodiment of the present invention provides an accurate control system for steel retaining amount of a medium frequency induction furnace based on an angle encoder, including an angle acquisition module, a volume calculation module, a weight calculation module, and a steel retaining control module, wherein:
the angle acquisition module is used for acquiring angle measurement data of the angle encoder in real time;
the volume calculation module is used for calculating the volume of the molten steel in the medium-frequency induction furnace in real time according to the angle measurement data so as to obtain a real-time molten steel volume value;
the weight calculation module is used for recording the density value of the molten steel in the medium-frequency induction furnace and calculating the weight of the molten steel in the medium-frequency induction furnace according to the real-time molten steel volume value and the density value of the molten steel so as to obtain a real-time molten steel weight value;
and the steel remaining control module is used for generating and sending control information to the medium-frequency induction furnace according to the real-time molten steel weight value and a preset steel remaining amount threshold value.
In order to solve the technical problem that the working efficiency of the medium frequency induction furnace is low because the medium frequency induction furnace is overturned outwards, and an operator cannot see steel left in the furnace, the invention can not accurately control the steel left in the furnace, accurately measure the tilting angle of the medium frequency induction furnace when the medium frequency induction furnace is tapped in real time through an angle encoder arranged on the medium frequency induction furnace, obtain angle measurement data in real time through an angle acquisition module, regard the furnace body of the medium frequency induction furnace as an inverted round table cylinder, convert the volume of a container according to the tilting angle in the angle measurement data through a volume calculation module, calculate the weight of molten steel (liquid metal) left in the volume of the medium frequency induction furnace according to the metal density through a weight calculation module, then perform comparative analysis according to the weight value of the molten steel obtained through real-time calculation and a preset steel left threshold value through a steel left control module, and analyze whether the weight value of the molten steel is equal to or lower than the preset steel left threshold value or not, if yes, control information is immediately generated, the intermediate frequency induction furnace is timely controlled to stop dumping, the steel retaining amount is ensured, the intermediate frequency induction furnace can conveniently perform the next steel casting operation, and the operation efficiency is improved.
Based on the second aspect, in some embodiments of the present invention, the steel-retaining control module includes a threshold value determining submodule, configured to determine whether the real-time molten steel weight value is not greater than a preset steel-retaining threshold value, and if so, generate and send a stop operation control message to the intermediate frequency induction furnace, so as to control the intermediate frequency induction furnace to stop the furnace tilting motion; if not, generating and sending normal operation control information to the medium frequency induction furnace.
Based on the second aspect, in some embodiments of the invention, the precise control system for steel retention of the intermediate frequency induction furnace based on the angle encoder further includes an alarm prompt module, configured to generate and send an alarm prompt message according to the real-time molten steel weight value and the preset steel retention threshold value.
Based on the second aspect, in some embodiments of the present invention, the accurate control system for steel-retaining amount of the intermediate frequency induction furnace based on the angle encoder further includes a furnace life recording module, configured to determine whether tapping of the intermediate frequency induction furnace is finished according to angle data in the angle measurement data, corresponding retention time and preset tapping parameters, and if so, record the furnace life of the intermediate frequency induction furnace; if not, continuing judging until tapping is finished.
In a third aspect, an embodiment of the present application provides an electronic device, which includes a memory for storing one or more programs; a processor. The program or programs, when executed by a processor, implement the method of any of the first aspects as described above.
In a fourth aspect, embodiments of the present application provide a computer-readable storage medium, on which a computer program is stored, which, when executed by a processor, implements the method according to any one of the first aspect described above.
The embodiment of the invention at least has the following advantages or beneficial effects:
the embodiment of the invention provides an accurate control method and system for steel retaining quantity of a medium frequency induction furnace based on an angle encoder, aiming at solving the technical problem that the working efficiency of the medium frequency induction furnace is low because an operator cannot see steel retaining in the furnace due to outward tilting of the medium frequency induction furnace, so that the steel retaining quantity cannot be accurately controlled, the invention accurately measures the tilting angle of the medium frequency induction furnace during steel tapping in real time through the angle encoder arranged on the medium frequency induction furnace, takes a furnace body of the medium frequency induction furnace as an inverted round table cylinder, converts the volume of a container according to the tilting angle, calculates the weight of molten steel (liquid metal) retained in the volume of the medium frequency induction furnace according to metal density, then compares and analyzes the weight value of the molten steel obtained through real-time calculation with a preset steel retaining quantity threshold value, and analyzes whether the weight value of the molten steel is equal to or lower than the preset steel retaining quantity threshold value or not, if yes, control information is immediately generated, the intermediate frequency induction furnace is timely controlled to stop dumping, the steel retaining amount is ensured, the intermediate frequency induction furnace can conveniently perform the next steel casting operation, and the operation efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a flowchart of a method for accurately controlling steel remaining amount of a medium frequency induction furnace based on an angle encoder according to an embodiment of the invention;
FIG. 2 is a schematic view illustrating a tapping process of molten steel in the induction furnace according to an embodiment of the present invention;
FIG. 3 is a schematic view of a volume calculation container according to an embodiment of the present invention;
FIG. 4 is a schematic block diagram of a system for accurately controlling the steel retaining amount of a medium frequency induction furnace based on an angle encoder according to an embodiment of the invention;
fig. 5 is a block diagram of an electronic device according to an embodiment of the present invention.
Icon: 100. an angle acquisition module; 200. a volume calculation module; 300. a weight calculation module; 400. a steel remaining control module; 410. a threshold judgment submodule; 500. an alarm prompt module; 600. a furnace life recording module; 101. a memory; 102. a processor; 103. a communication interface.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
In the description of the embodiments of the present invention, it should be noted that the terms "horizontal", "vertical", "hanging", and the like do not mean that the components are absolutely required to be horizontal or hanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Examples
As shown in fig. 1 to 4, in a first aspect, an embodiment of the present invention provides a method for accurately controlling steel retained in a medium frequency induction furnace based on an angle encoder, including the following steps:
s1, acquiring angle measurement data of the angle encoder in real time;
s2, calculating the volume of molten steel in the medium-frequency induction furnace in real time according to the angle measurement data to obtain a real-time molten steel volume value;
in some embodiments of the present invention, as shown in fig. 2, if the furnace body of the intermediate frequency induction furnace is regarded as an inverted circular truncated cone, and the furnace body is divided into Step1, Step2, Step3 and Step4 in the tilting operation, if the radii of the upper bottom surface and the lower bottom surface of the circular truncated cone are R and R respectively, the height of the circular truncated cone is h, and the volume of the circular truncated cone is V, the specific method for calculating the volume of the molten steel in the intermediate frequency induction furnace includes:
at Step1, the volume of molten steel in the medium-frequency induction furnace is V (1/3 pi h) (R2+ R2+ rR);
at Step2, the volume of molten steel in the medium-frequency induction furnace and the pattern of the truncated cone after beveling are separated and divided into a truncated cone and a beveling body, the volume of the beveling body is equal to the product of the bottom surface and the height after decomposition, and then divided by two, the total volume is equal to the volume of the cylinder plus the volume of the beveling body, if the radiuses of the upper bottom surface and the lower bottom surface of the truncated cone are R and R respectively, the height of the truncated cone is h, and the volume of the truncated cone is V, then the volume formula of the truncated cone is as follows: v ═ pi h (R2+ Rr + R2)/3, the sum of the square of the product of the upper floor area + the lower floor area + the upper and lower area stepp 1 multiplied by the height, and dividing by 3 gives the volume V ═ 1/3 pi h (R2+ R2+ Rr).
Volume of molten steel in the medium frequency induction furnace at Step 3: v-1/2 × 1/3 pi h (R2+ R2+ rR)
At Step4, the volume of molten steel in the medium frequency induction furnace and the volume of the truncated cylinder can be calculated according to the graphic volume shown in figure 3 by adopting the following formula:
the liquid is cut by a plane which is parallel to the bottom of the barrel and has a distance x with the upper vertex, and the obtained section area is as follows:
S(x)＝(R^2)*arccos[1-(x*tgθ)/R]+tgθ*
(x*tgθ-R)*Sqrt(-x^2+2*R*ctgθ*x)；
and (x) integrating the S (x) in the interval [0, h/Sin theta ] to obtain the volume of the liquid.
The above integral calculation can be divided into two parts.
A first part:
f(x)＝(R^2)*arccos[1-(x*tgθ)/R]；
the element changing order t is 1- (x, tg theta)/R;
then (x) the integral over [0, h/Sin θ ] translates into the integral over the interval [1-h/(R × Cos θ), 1] of the following function p (t) ^3 Ctg θ arccos;
indefinite integration: integral ═ arccos td ═ t × arccos-Sqrt (1-t ^2)
A second part:
g(x)＝tgθ*(x*tgθ-R)*Sqrt(-x^2+2*R*ctgθ*x)；
changing the element to ensure that t is x-R ctg theta;
then g (x) the integral over [0, h/Sin θ ] translates into the integral over the interval [ -R × ctg θ, (h-R × Cos θ)/Sin θ ] of the following function;
q(t)＝[(tgθ)^2]*t*Sqrt[-t^2+R^2*(ctgθ)^2]
indefinite integration: integral multiple of Sqrt (a < t ^2+ c) dt < 1/(3 < a >) Sqrt [ (a < t ^2+ c) < 3 >.
S3, recording the density value of the molten steel in the medium-frequency induction furnace, and calculating the weight of the molten steel in the medium-frequency induction furnace according to the real-time molten steel volume value and the density value of the molten steel to obtain a real-time molten steel weight value;
and S4, generating and sending control information to the medium-frequency induction furnace according to the real-time molten steel weight value and the preset steel remaining amount threshold value.
Further, judging whether the real-time molten steel weight value is not greater than a preset steel remaining amount threshold value, if so, generating and sending operation stopping control information to the medium-frequency induction furnace, and controlling the medium-frequency induction furnace to stop the furnace tilting action; if not, generating and sending normal operation control information to the medium frequency induction furnace.
In some embodiments of the invention, when tapping tilts the intermediate frequency induction furnace, a reasonable steel retaining amount threshold can be set according to needs, and when the residual molten steel amount (steel retaining amount threshold) is reached, the residual molten steel amount is timely fed back to a control system of the existing intermediate frequency induction furnace, so that the intermediate frequency induction furnace is controlled to stop tilting (tapping) in time, and the water retaining amount is ensured.
In order to solve the technical problem that the working efficiency of the medium frequency induction furnace is low because the medium frequency induction furnace is tilted outwards and an operator cannot see steel left in the furnace, the invention accurately measures the tilting angle of the medium frequency induction furnace during steel tapping in real time through an angle encoder arranged on the medium frequency induction furnace, the furnace body of the medium frequency induction furnace is regarded as an inverted round table cylinder, the volume of a container is converted according to the tilting angle, the weight of molten steel (liquid metal) left in the volume of the medium frequency induction furnace is calculated according to the metal density, then the weight value of the molten steel obtained through real-time calculation is compared and analyzed with a preset steel left threshold value, whether the weight value of the molten steel is equal to or lower than the preset steel left threshold value is analyzed, if yes, control information is immediately generated, the medium frequency induction furnace is controlled to stop tilting in time, and the medium frequency induction furnace is tilted back to the vertical position, the charging and melting operation of the next furnace is prepared, and the steel retaining amount is ensured, so that the next steel casting operation of the medium-frequency induction furnace is facilitated, and the operation efficiency is improved.
Based on the first aspect, in some embodiments of the present invention, the method for accurately controlling steel retention of the intermediate frequency induction furnace based on the angle encoder further includes the following steps:
and generating and sending alarm prompt information according to the real-time molten steel weight value and a preset steel remaining amount threshold value.
In order to effectively monitor the steel retaining amount in the intermediate frequency induction furnace in time, when the real-time molten steel weight value reaches or is lower than a preset steel retaining amount threshold value, an alarm prompt message is immediately generated, and the alarm prompt is timely carried out. The alarm prompt information comprises an audible and visual alarm prompt, steel remaining amount information and the like.
Based on the first aspect, in some embodiments of the present invention, the method for accurately controlling steel retention of the intermediate frequency induction furnace based on the angle encoder further includes the following steps:
judging whether tapping of the medium-frequency induction furnace is finished or not according to angle data in the angle measurement data, corresponding residence time and preset tapping parameters, and if so, recording the furnace age of the medium-frequency induction furnace; if not, continuing judging until tapping is finished.
In order to accurately grasp the condition of the intermediate frequency induction furnace, whether tapping is finished or not can be obtained through an algorithm according to the change of the tilting angle and the retention time, so that the furnace life is judged to be increased by 1 furnace, the furnace life is recorded as one time after each steel casting and tilting is finished, and the volume is gradually increased according to the increasing of the furnace life in the following process to perform correction.
As shown in fig. 4, in a second aspect, an embodiment of the present invention provides an accurate control system for steel retaining amount of a medium frequency induction furnace based on an angle encoder, including an angle obtaining module 100, a volume calculating module 200, a weight calculating module 300, and a steel retaining control module 400, wherein:
an angle obtaining module 100, configured to obtain angle measurement data of an angle encoder in real time;
the volume calculation module 200 is used for calculating the volume of the molten steel in the medium-frequency induction furnace in real time according to the angle measurement data so as to obtain a real-time molten steel volume value;
the weight calculation module 300 is used for recording the density value of the molten steel in the medium-frequency induction furnace, and calculating the weight of the molten steel in the medium-frequency induction furnace according to the real-time molten steel volume value and the density value of the molten steel to obtain a real-time molten steel weight value;
and the steel-remaining control module 400 is used for generating and sending control information to the medium-frequency induction furnace according to the real-time molten steel weight value and a preset steel-remaining amount threshold value.
In order to solve the technical problem that the working efficiency of the medium frequency induction furnace is low because the medium frequency induction furnace is tilted outwards and an operator cannot see steel left in the furnace, the tilting angle of the medium frequency induction furnace during steel tapping can not be accurately measured in real time through an angle encoder arranged on the medium frequency induction furnace, angle measurement data is obtained in real time through an angle obtaining module 100, a furnace body of the medium frequency induction furnace is regarded as an inverted round table cylinder, the volume of a container is converted through a volume calculating module 200 according to the tilting angle in the angle measurement data, the weight of molten steel (liquid metal) left in the volume of the medium frequency induction furnace is calculated through a weight calculating module 300 according to metal density, then comparative analysis is carried out through a steel left control module 400 according to a molten steel weight value obtained through real-time calculation and a preset steel left weight threshold value, and whether the molten steel weight value is equal to or lower than the preset steel left threshold value is analyzed, if yes, control information is immediately generated, the intermediate frequency induction furnace is timely controlled to stop dumping, the steel retaining amount is ensured, the intermediate frequency induction furnace can conveniently perform the next steel casting operation, and the operation efficiency is improved.
As shown in fig. 4, according to the second aspect, in some embodiments of the present invention, the steel-retaining control module 400 includes a threshold value determining submodule 410, configured to determine whether the real-time molten steel weight value is not greater than a preset steel-retaining threshold value, and if so, generate and send a stop operation control message to the intermediate frequency induction furnace, so as to control the intermediate frequency induction furnace to stop the furnace tilting motion; if not, generating and sending normal operation control information to the medium frequency induction furnace.
According to the molten steel amount in the intermediate frequency induction furnace, when the intermediate frequency induction furnace is tilted during tapping, a reasonable retained steel amount threshold value can be set as required, whether the threshold value is reached or not is judged through the threshold value judgment submodule 410, the residual molten steel amount (retained steel amount threshold value) is timely fed back to a control system of the existing intermediate frequency induction furnace, the intermediate frequency induction furnace is controlled to timely stop tilting (tapping), and the retained water amount is ensured.
As shown in fig. 4, based on the second aspect, in some embodiments of the present invention, the system for accurately controlling steel-remaining amount of the intermediate frequency induction furnace based on the angle encoder further includes an alarm prompt module 500, configured to generate and send an alarm prompt message according to the real-time weight value of molten steel and a preset steel-remaining amount threshold value.
In order to effectively monitor the steel retaining amount in the intermediate frequency induction furnace in time, when the real-time molten steel weight value reaches or is lower than the preset steel retaining amount threshold value, an alarm prompt message is immediately generated through the alarm prompt module 500, and alarm prompt is carried out in time. The alarm prompt information comprises an audible and visual alarm prompt, steel remaining amount information and the like.
As shown in fig. 4, according to the second aspect, in some embodiments of the present invention, the system for accurately controlling steel remaining amount of the intermediate frequency induction furnace based on the angle encoder further includes a furnace life recording module 600, configured to determine whether tapping of the intermediate frequency induction furnace is finished according to angle data in the angle measurement data, corresponding retention time and preset tapping parameters, and if so, record the furnace life of the intermediate frequency induction furnace; if not, continuing judging until tapping is finished.
In order to accurately grasp the condition of the intermediate frequency induction furnace, whether tapping is finished or not can be obtained through an algorithm by adding the retention time to the furnace life recording module 600 according to the change of the tilting angle, so that the furnace life is judged to be increased by 1 furnace, and the furnace life is recorded as one time after each steel casting and tilting is finished, so that the volume is gradually increased according to the increase of the furnace life in the following process, and correction is performed once.
As shown in fig. 5, in a third aspect, an embodiment of the present application provides an electronic device, which includes a memory 101 for storing one or more programs; a processor 102. The one or more programs, when executed by the processor 102, implement the method of any of the first aspects as described above.
Also included is a communication interface 103, and the memory 101, processor 102 and communication interface 103 are electrically connected to each other, directly or indirectly, to enable transfer or interaction of data. For example, the components may be electrically connected to each other via one or more communication buses or signal lines. The memory 101 may be used to store software programs and modules, and the processor 102 executes the software programs and modules stored in the memory 101 to thereby execute various functional applications and data processing. The communication interface 103 may be used for communicating signaling or data with other node devices.
The Memory 101 may be, but is not limited to, a Random Access Memory 101 (RAM), a Read Only Memory 101 (ROM), a Programmable Read Only Memory 101 (PROM), an Erasable Read Only Memory 101 (EPROM), an electrically Erasable Read Only Memory 101 (EEPROM), and the like.
The processor 102 may be an integrated circuit chip having signal processing capabilities. The Processor 102 may be a general-purpose Processor 102, including a Central Processing Unit (CPU) 102, a Network Processor 102 (NP), and the like; but may also be a Digital Signal processor 102 (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, discrete hardware components.
In the embodiments provided in the present application, it should be understood that the disclosed method and system and method can be implemented in other ways. The method and system embodiments described above are merely illustrative, for example, the flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of methods and systems, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, functional modules in the embodiments of the present application may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
In a fourth aspect, embodiments of the present application provide a computer-readable storage medium, on which a computer program is stored, which, when executed by the processor 102, implements the method according to any one of the first aspect described above. The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory 101 (ROM), a Random Access Memory 101 (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
It will be evident to those skilled in the art that the present application is not limited to the details of the foregoing illustrative embodiments, and that the present application may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. An accurate control method for steel retaining quantity of an intermediate frequency induction furnace based on an angle encoder is characterized by comprising the following steps:
acquiring angle measurement data of an angle encoder in real time;
calculating the volume of molten steel in the medium-frequency induction furnace in real time according to the angle measurement data to obtain a real-time molten steel volume value;
recording the density value of the molten steel in the medium-frequency induction furnace, and calculating the weight of the molten steel in the medium-frequency induction furnace according to the real-time molten steel volume value and the density value of the molten steel to obtain a real-time molten steel weight value;
and generating and sending control information to the medium-frequency induction furnace according to the real-time molten steel weight value and a preset steel remaining amount threshold value.
2. The method for accurately controlling the steel retaining quantity of the intermediate frequency induction furnace based on the angle encoder as claimed in claim 1, wherein the method for generating and sending control information to the intermediate frequency induction furnace according to the real-time molten steel weight value and the preset steel retaining quantity threshold value comprises the following steps:
judging whether the real-time molten steel weight value is not greater than a preset steel remaining amount threshold value or not, if so, generating and sending out operation stopping control information to the medium-frequency induction furnace, and controlling the medium-frequency induction furnace to stop the furnace tilting action; if not, generating and sending normal operation control information to the medium frequency induction furnace.
3. The method for accurately controlling the steel retaining quantity of the intermediate frequency induction furnace based on the angle encoder as claimed in claim 1, characterized by further comprising the following steps:
and generating and sending alarm prompt information according to the real-time molten steel weight value and a preset steel remaining amount threshold value.
4. The method for accurately controlling the steel retaining quantity of the intermediate frequency induction furnace based on the angle encoder as claimed in claim 1, characterized by further comprising the following steps:
judging whether tapping of the medium-frequency induction furnace is finished or not according to angle data in the angle measurement data, corresponding residence time and preset tapping parameters, and if so, recording the furnace age of the medium-frequency induction furnace; if not, continuing judging until tapping is finished.
5. The utility model provides an accurate control system of steel volume is stayed to intermediate frequency induction furnace based on angle encoder, its characterized in that obtains module, volume calculation module, weight calculation module and stays steel control module including the angle, wherein:
the angle acquisition module is used for acquiring angle measurement data of the angle encoder in real time;
the volume calculation module is used for calculating the volume of the molten steel in the medium-frequency induction furnace in real time according to the angle measurement data so as to obtain a real-time molten steel volume value;
the weight calculation module is used for recording the density value of the molten steel in the medium-frequency induction furnace and calculating the weight of the molten steel in the medium-frequency induction furnace according to the real-time molten steel volume value and the density value of the molten steel so as to obtain a real-time molten steel weight value;
and the steel remaining control module is used for generating and sending control information to the medium-frequency induction furnace according to the real-time molten steel weight value and a preset steel remaining amount threshold value.
6. The system for accurately controlling the steel retaining quantity of the intermediate frequency induction furnace based on the angle encoder is characterized in that the steel retaining control module comprises a threshold value judging submodule for judging whether the real-time molten steel weight value is not larger than a preset steel retaining quantity threshold value or not, if so, generating and sending operation stopping control information to the intermediate frequency induction furnace, and controlling the intermediate frequency induction furnace to stop the furnace tilting action; if not, generating and sending normal operation control information to the medium frequency induction furnace.
7. The system for accurately controlling the steel retaining quantity of the intermediate frequency induction furnace based on the angle encoder as claimed in claim 5, characterized by further comprising an alarm prompt module for generating and sending alarm prompt information according to the real-time molten steel weight value and a preset steel retaining quantity threshold value.
8. The system for accurately controlling the steel retaining quantity of the intermediate frequency induction furnace based on the angle encoder is characterized by further comprising a furnace age recording module, wherein the furnace age recording module is used for judging whether steel tapping of the intermediate frequency induction furnace is finished or not according to angle data in angle measurement data, corresponding retention time and preset steel tapping parameters, and if yes, recording the furnace age of the intermediate frequency induction furnace; if not, continuing judging until tapping is finished.
9. An electronic device, comprising:
a memory for storing one or more programs;
a processor;
the one or more programs, when executed by the processor, implement the method of any of claims 1-4.
10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the method according to any one of claims 1-4.
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