阅读说明：本技术 一种转炉炉内反应数字孪生体控制方法、装置及存储介质 (Method and device for controlling reaction digital twin in converter and storage medium ) 是由 李长新 周平 张学民 王汝波 王成镇 张伟 宁伟 高志滨 刘俊宝 于 2021-09-28 设计创作，主要内容包括：本申请涉及转炉炉内反应数字孪生体控制方法、装置及存储介质。方法包括冶炼过程中,通过音频化渣技术采集转炉炉口的音频,并由音频获取音频特征；将音频特征进行切片获取特征片段；对特征片段的曲线趋势、斜率和变化量进行分析,且将特征片段所涉及的值与预设的异常边界的值对比,以判断是否出现或会出现冶炼异常；构建炉内反应数字孪生体；将音频特征按时序对应的方式导入所述炉内反应数字孪生体并利用音频特征驱动炉内反应数字孪生体,根据出现或会出现的冶炼异常执行对应的补救操作。本申请利用音频化渣的音频特征及对应的补救操作,实现转炉冶炼过程渣态的实时映射与闭环控制,保证冶炼过程的平稳进行,提高冶炼质量。(The application relates to a method and a device for controlling a reaction digital twin in a converter and a storage medium. The method comprises the steps of collecting the audio frequency of a converter mouth through an audio frequency slag melting technology in the smelting process, and obtaining audio frequency characteristics from the audio frequency; slicing the audio features to obtain feature segments; analyzing the curve trend, slope and variation of the characteristic segments, and comparing the values related to the characteristic segments with the preset values of the abnormal boundary to judge whether smelting abnormality occurs or not; constructing a reaction digital twin body in the furnace; and leading audio features into the in-furnace reaction digital twin body in a time sequence corresponding mode, driving the in-furnace reaction digital twin body by using the audio features, and executing corresponding remedial operation according to the occurrence or possible smelting abnormity. The method and the device have the advantages that the real-time mapping and closed-loop control of the slag state in the smelting process of the converter are realized by utilizing the audio frequency characteristics of the audio frequency slag melting and the corresponding remedial operation, the stable operation of the smelting process is ensured, and the smelting quality is improved.)

1. A method for controlling a reaction digital twin in a converter is characterized by comprising the following steps:

in the smelting process, audio frequency of a converter mouth is collected through an audio frequency slag melting technology, and audio frequency characteristics are obtained through the audio frequency to form a dynamic curve;

slicing a dynamic curve of the audio to obtain characteristic segments;

analyzing the curve trend, slope and variation of the characteristic segments, and comparing the values related to the characteristic segments with the preset values of the abnormal boundary to judge whether smelting abnormality occurs or not;

constructing a reaction digital twin body in the furnace;

and leading audio features into the in-furnace reaction digital twin body in a time sequence corresponding mode, driving the in-furnace reaction digital twin body by utilizing real-time data of the audio features, and executing corresponding remedial operation according to the occurrence or possible smelting abnormity.

2. The method for controlling a reaction digital twin in a converter according to claim 1, wherein the smelting abnormality includes splashing and re-drying; the preset abnormal boundary value comprises a splashing boundary and a drying boundary, wherein the splashing boundary limits the upper limit of the audio features, the drying boundary limits the lower limit of the audio features, and a normal working interval which needs to be maintained for smelting control is arranged between the splashing boundary and the drying boundary.

3. The method for controlling a digital twin reactor in a converter according to claim 1, wherein the method for obtaining the predetermined abnormal boundary value comprises:

collecting the audio frequency characteristics of return drying and splashing in each smelting stage in the historical smelting process under the preset smelting condition;

and carrying out nonlinear classification on the collected back-drying and splashing audio frequency characteristics by using a classification algorithm to obtain a splashing boundary and a back-drying boundary of each smelting stage under a preset smelting condition.

4. The method for controlling the digital twin reactor in the converter according to claim 1, wherein when the audio features are sliced to obtain the feature segments, the audio features are sliced according to a time sequence, and the time length of the feature segments ranges from 30 seconds to 60 seconds.

5. The method for controlling the reaction digital twin in the converter according to claim 2, wherein analyzing the curve trend, slope and variation of the characteristic segment, and comparing the value related to the characteristic segment with the value of the preset abnormal boundary to determine whether the smelting abnormality occurs or will occur comprises:

comparing whether the value related to the characteristic segment is larger than the value of the corresponding splash boundary or not, and judging whether splash occurs or not;

comparing whether the value related to the characteristic segment is smaller than the value of the corresponding back stem boundary or not, and judging whether back stem occurs or not;

analyzing whether the trend and the slope of the curve of the characteristic segment can cause splashing or not under the condition that the value related to the characteristic segment is close to the splashing boundary;

under the condition that the values related to the characteristic segments are close to the back-stem boundary, whether the trend and the slope of the curve of the characteristic segments can cause the back stem is analyzed;

analyzing the variation of the values related to the characteristic segments, and judging whether smelting abnormity occurs.

6. The method for controlling a digital twin reactor in a converter according to claim 5, wherein a first warning boundary is defined according to the splash boundary, a second warning boundary is defined according to the dry-back boundary, and when the value related to the characteristic segment is greater than the value of the first warning boundary and less than the value of the splash boundary, it is determined that the value related to the characteristic segment is close to the splash boundary; and when the value related to the characteristic segment is smaller than the value of the first warning boundary and larger than the value of the interference rejection boundary, judging that the value related to the characteristic segment is close to the interference rejection boundary.

7. The method for controlling a reaction digital twin in a converter according to claim 1, wherein the reaction digital twin in the converter comprises:

mapping and outputting a foam slag height mimicry model of the foam slag height in real time according to the audio characteristics, wherein the foam slag height mimicry model is created based on set smelting conditions and different reaction stages; the set smelting conditions comprise furnace type, furnace volume ratio, oxygen supply process and oxygen supply intensity;

mapping and outputting a tone distribution mimicry model in a smelting reaction stage in real time according to the audio characteristics;

and respectively outputting the height of the foamed slag and the smelting reaction stage in real time through a foamed slag height mimicry model and a color tone distribution mimicry model.

8. The method for controlling the reaction digital twin in the converter according to claim 1, wherein the remedial operation for the smelting abnormality includes:

the remedy operation corresponding to the abnormal splashing or the abnormal splashing can be one or more of adding slag making materials, reducing the position of the oxygen lance and increasing the pressure supply of the oxygen lance; the remedial operation corresponding to the abnormal dry returning or the abnormal dry returning can be one or more of ore supplement, oxygen lance position improvement and oxygen lance pressure supply reduction.

9. A digital twin body control device for reaction in a converter is characterized by comprising: the audio frequency slagging collecting module is used for collecting the audio frequency characteristics of the converter mouth of the converter;

the smelting master control module is used for configuring a reaction digital twin body in the furnace, analyzing the occurrence or possible occurrence of smelting abnormity by using audio characteristics, and giving out corresponding remedial operation instructions according to the occurrence or possible occurrence of the smelting abnormity;

the oxygen lance module executes remedial operation of the smelting master control module and comprises oxygen lance position and oxygen pressure control;

and the batching module executes the remedial operation instruction of the smelting master control module to realize the addition of ores or slag making materials.

10. A storage medium for implementing a method for controlling a digital twin reaction in a converter, wherein the storage medium for implementing the method for controlling a digital twin reaction in a converter stores at least one instruction, and the instruction is read and executed to implement the method for controlling a digital twin reaction in a converter according to any one of claims 1 to 8.

Technical Field

The application relates to the field of metallurgy, in particular to a method and a device for controlling a reaction digital twin organism in a converter and a storage medium.

Background

The method has the advantages that the reaction in the converter smelting furnace is complex, and the converter smelting furnace has the characteristics of high temperature, high smoke dust, liquid slag metal and the like, at present, aiming at the condition that continuous real-time detection means in the converter smelting process is limited and real-time detection is lacked, the front middle stage of a control model of the current converter process is in a static model, and the later stage adopts a dynamic model adjustment of a sublance, but the method is only limited in the dynamic adjustment after point measurement, so that the continuous real-time process is difficult to truly reflect, the adaptability of a process window is small, and the dynamic closed-loop control of the converter cannot be realized; under the characteristics of multiple open types of converter smelting varieties, complicated raw material conditions and the like in China, higher requirements are put forward on intelligent control of the converter process.

In the prior art, the invention of the Chinese invention patent application number (CN202110265539. X) provides a converter dynamic bottom blowing method based on audio frequency slagging, which can be adjusted in time before an audio frequency curve reaches a return main line or a splashing line, can improve the bottom blowing slagging effect of a top-bottom combined blown converter, solves the problem that the converter cannot adjust splashing and return dryness in time, and stabilizes the operation of the converter; however, the converter mainly uses oxygen supply as the main in-furnace reaction, the invention is only limited to the use of audio slagging to adjust the bottom blowing of the converter, and does not carry out effective dynamic linkage on the control, feeding and the like of the oxygen lance which is the key operation of the converter. The invention discloses a Chinese patent application number (201811645235.0) of an intelligent steelmaking system based on a converter flue gas analysis technology, wherein the flue gas analysis technology is used for carrying out model calculation and prediction on a smelting process of a converter, certain hysteresis exists in flue gas analysis, variable compensation is required to be carried out through the model calculation, and the closed loop requirement of real-time process control is not met.

Disclosure of Invention

In order to solve the above technical problems or at least partially solve the above technical problems, the present application provides a method, an apparatus and a storage medium for controlling a reaction digital twin in a converter.

In a first aspect, the present application provides a method for controlling a reaction digital twin in a converter, comprising:

in the smelting process, audio frequency of a converter mouth is collected through an audio frequency slag melting technology, and audio frequency characteristics are obtained through the audio frequency to form a dynamic curve;

slicing the audio dynamic curve to obtain characteristic segments;

analyzing the curve trend, slope and variation of the characteristic segments, and comparing the values related to the characteristic segments with the preset values of the abnormal boundary to judge whether smelting abnormality occurs or not;

constructing a reaction digital twin body in the furnace;

and leading audio features into the in-furnace reaction digital twin body in a time sequence corresponding mode, driving the in-furnace reaction digital twin body by utilizing real-time data of the audio features, and executing corresponding remedial operation according to the occurrence or possible smelting abnormity.

Further, the smelting anomalies include splashing and re-drying; the preset abnormal boundary value comprises a splashing boundary and a drying boundary, wherein the splashing boundary limits the upper limit of the audio features, the drying boundary limits the lower limit of the audio features, and a normal working interval which needs to be maintained for smelting control is arranged between the splashing boundary and the drying boundary.

Further, the method for obtaining the preset abnormal boundary value includes:

collecting the audio frequency characteristics of return drying and splashing in each smelting stage in the historical smelting process under the preset smelting condition;

and carrying out nonlinear classification on the collected back-drying and splashing audio frequency characteristics by using a classification algorithm to obtain a splashing boundary and a back-drying boundary of each smelting stage under a preset smelting condition.

Further, when the audio feature is sliced to obtain the feature segment, the audio feature is sliced according to the time sequence, and the time length of the feature segment ranges from 30 seconds to 60 seconds.

Further, analyzing the curve trend, slope and variation of the characteristic segment, and comparing the value related to the characteristic segment with the value of a preset abnormal boundary to judge whether the smelting abnormality occurs or not comprises:

comparing whether the value related to the characteristic segment is larger than the value of the corresponding splash boundary or not, and judging whether splash occurs or not;

comparing whether the value related to the characteristic segment is smaller than the value of the corresponding back stem boundary or not, and judging whether back stem occurs or not;

analyzing whether the trend and the slope of the curve of the characteristic segment can cause splashing or not under the condition that the value related to the characteristic segment is close to the splashing boundary;

under the condition that the values related to the characteristic segments are close to the back-stem boundary, whether the trend and the slope of the curve of the characteristic segments can cause the back stem is analyzed;

analyzing the variation of the values related to the characteristic segments, and judging whether smelting abnormity occurs.

Furthermore, a first warning boundary is defined according to the splashing boundary, a second warning boundary is defined according to the back-drying boundary, and when the value related to the characteristic segment is larger than the value of the first warning boundary and smaller than the value of the splashing boundary, the value related to the characteristic segment is judged to be close to the splashing boundary; and when the value related to the characteristic segment is smaller than the value of the first warning boundary and larger than the value of the interference rejection boundary, judging that the value related to the characteristic segment is close to the interference rejection boundary.

Still further, the in-furnace reaction digital twin includes:

mapping and outputting a foam slag height mimicry model of the foam slag height in real time according to the audio characteristics, wherein the foam slag height mimicry model is created based on set smelting conditions and different reaction stages; the set smelting conditions comprise furnace type, furnace volume ratio, oxygen supply process and oxygen supply intensity;

mapping and outputting a tone distribution mimicry model in a smelting reaction stage in real time according to the audio characteristics;

and respectively outputting the height of the foamed slag and the smelting reaction stage in real time through a foamed slag height mimicry model and a color tone distribution mimicry model.

Furthermore, the remedial operation corresponding to the smelting abnormity comprises the following steps:

the remedy operation corresponding to the abnormal splashing or the abnormal splashing can be one or more of adding slag making materials, reducing the position of the oxygen lance and increasing the pressure supply of the oxygen lance; the remedial operation corresponding to the abnormal dry returning or the abnormal dry returning can be one or more of ore supplement, oxygen lance position improvement and oxygen lance pressure supply reduction.

In a second aspect, the present application provides a digital twin reaction controller in a converter, comprising: the audio frequency slagging collecting module is used for collecting the audio frequency characteristics of the converter mouth of the converter;

the smelting master control module is used for configuring a reaction digital twin body in the furnace, analyzing the occurrence or possible occurrence of smelting abnormity by using audio characteristics, and giving out corresponding remedial operation instructions according to the occurrence or possible occurrence of the smelting abnormity;

the oxygen lance module executes remedial operation of the smelting master control module and comprises oxygen lance position and oxygen pressure control;

and the batching module executes the remedial operation instruction of the smelting master control module to realize the addition of ores or slag making materials.

In a third aspect, the present application provides a storage medium for implementing a method for controlling a reaction digital twin in a converter, where the storage medium for implementing the method for controlling a reaction digital twin in a converter stores at least one instruction, and reads and executes the instruction to implement the method for controlling a reaction digital twin in a converter.

Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages:

aiming at the characteristics of complex reaction in the converter, high temperature, high smoke dust, liquid slag, and the like, the invention aims at the limited continuous real-time detection means in the converter smelting process and realizes the real-time mapping of the reaction in the converter by using the audio frequency slagging technology.

Aiming at the conditions of multielement open type converter smelting varieties and complicated raw material conditions in China, higher requirements are provided for the intelligent control of the converter smelting process. According to the method, the real-time and continuous characteristics of the audio slagging acquisition signals at the converter mouth of the converter are fully utilized, the acquired audio characteristics and the smelting abnormity characteristics of the converter in different reaction stages are compared and analyzed to obtain the smelting abnormity in different reaction stages, the audio characteristics capable of reflecting the smelting abnormity are led into the digital twin body of the converter, the corresponding abnormity remediation operation is executed according to the abnormity condition, and the smelting abnormity can be remedied by the control and feeding operation of the oxygen lance of the converter. The real-time mapping and closed-loop control of the slag state in the smelting process of the converter are realized, the stable operation of the smelting process is ensured, and the smelting quality is improved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a flow chart of a method for controlling a reaction digital twin in a converter according to an embodiment of the present disclosure;

FIG. 2 is a flow chart for determining and presetting a smelting abnormal boundary provided by an embodiment of the application;

fig. 3 is a flowchart for analyzing the curve trend, slope and variation of the feature segment, and comparing the value related to the feature segment with the value of the preset abnormal boundary to determine whether a smelting abnormality occurs or not;

FIG. 4 is a schematic diagram of a digital twin controlling apparatus for reaction in a converter according to an embodiment of the present application.

The reference numbers and meanings in the figures are as follows: 1. the device comprises a converter, 2, a batching module, 3, an oxygen lance module, 4, an audio slagging acquisition module, and 5, a smelting master control module.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. 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 application.

It should be noted that, in this document, 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 converter smelting process, when splashing or splashing tendency exists, the slag is in a peroxide state, the reaction of the peroxide state is severe, the foaming is serious, and the slag layer thickness of the foamed slag can be increased rapidly; when the slag is back-dried or has a back-drying trend, the slag is in an exposed converting state, namely the thickness of the foamed slag layer is lower, and the jet flow of the oxygen lance is blown or jetted on the surface layer shallowly. The supersonic oxygen flow blown out by oxygen lance with oxygen supply can generate strong noise when impacting the molten pool, and the noise is maximum when the oxygen lance is exposed to blow and returns to dry and minimum when the oxygen lance is splashed. Therefore, the audio frequency characteristic of the noise reflects the smelting state in the converter in the smelting process.

Example 1

The embodiment of the application provides a method for controlling a reaction digital twin organism in a converter, and the method provides corresponding remedial operation for smelting abnormality which appears or can appear in each reaction stage in the smelting process of the converter, so that the slag state in the converter is stable in the smelting process of the converter.

In the specific implementation process, the method for controlling the reaction digital twin in the converter comprises the following steps:

s100, determining and presetting an abnormal smelting boundary; specifically, the smelting abnormality aimed at by the application comprises a drying return abnormality and a splashing abnormality; the corresponding abnormal boundaries comprise a splashing boundary and a drying return boundary, wherein the splashing boundary limits the upper limit of the audio features, the drying return boundary limits the lower limit of the audio features, and a normal working interval which is required to be maintained by smelting control is arranged between the splashing boundary and the drying return boundary.

The mode for determining the smelting abnormal boundary is as follows:

s101, collecting audio characteristics of return drying and splashing of each smelting reflecting stage in the historical smelting process under preset smelting conditions; specifically, historical smelting audios of different furnace types and different loading conditions under the same oxygen supply condition are collected, and data corresponding to the abnormal drying and splashing of different reaction stages in the historical audios are subjected to drying returning and splashing marking.

And S102, carrying out nonlinear classification on the collected back-drying and splashing audio frequency characteristics by using a classification algorithm to obtain a splashing boundary and a back-drying boundary of each smelting stage under a preset smelting condition.

S103, when converter smelting is carried out under certain conditions, matching the splashing boundary and the drying return boundary corresponding to the conditions to carry out smelting abnormal boundary presetting.

S200, in the smelting process, acquiring the audio frequency of a converter mouth through an audio frequency slag melting technology, and acquiring audio frequency characteristics and forming a dynamic curve through the audio frequency; in the specific implementation process, a directional sonar acquisition device of an audio slagging module is arranged at a converter mouth of the converter, a soft water cooling system and a blowing protection system are used for protecting the sonar acquisition device, and a sound insulation device is used for isolating the directional sonar acquisition device. In the smelting process, when slag is accumulated at the furnace mouth of the converter, the smelting slag at the furnace mouth is technically cleaned, and the interference of the smelting slag on audio acquisition is avoided.

S300, slicing the dynamic curve of the audio characteristics to obtain characteristic segments; specifically, the audio features are sliced in time series, and the time length of the feature segments obtained by slicing ranges from 30 seconds to 60 seconds.

S400, analyzing the curve trend, the slope and the variation of the characteristic segments, and comparing the values related to the characteristic segments with the preset value of the abnormal boundary to judge whether the smelting abnormality occurs or not.

In a specific implementation process, referring to fig. 3, analyzing the curve trend, the slope and the variation of the characteristic segment, and comparing the value related to the characteristic segment with the value of the preset abnormal boundary to determine whether the smelting abnormality occurs or will occur includes:

and comparing whether the value related to the characteristic segment is larger than the value of the corresponding splash boundary, and judging whether splash occurs.

And comparing whether the value related to the characteristic segment is smaller than the value of the corresponding back stem boundary, and judging whether back stem occurs.

Analyzing whether the trend and the slope of the curve of the characteristic segment can cause splashing or not under the condition that the value related to the characteristic segment is close to the splashing boundary; specifically, a first warning boundary is defined according to the splash boundary, and when the value related to the characteristic segment is greater than the value of the first warning boundary and less than the value of the splash boundary, it is determined that the value related to the characteristic segment is close to the splash boundary. One possible way to define the first alert boundary is to: setting a first percentage, the first warning limit being equal to a product of the first percentage and the splash limit, wherein the first percentage is less than 1. Another possible way to define the first alert boundary is to: a first threshold is set, the first warning limit being equal to the splash limit minus the first threshold. When the splash boundary is approached, the characteristic segment is judged to cause splash when the rising trend slope is positive.

And analyzing whether the trend and the slope of the curve of the characteristic segment can cause the stem return or not under the condition that the value related to the characteristic segment is close to the stem return boundary. Defining a second alert boundary according to the back-trunk boundary; and when the value related to the characteristic segment is smaller than the value of the first warning boundary and larger than the value of the interference rejection boundary, judging that the value related to the characteristic segment is close to the interference rejection boundary. One possible way to define the second alert boundary is to: setting a second percentage, the first alert boundary being equal to a product of the second percentage and a backrun boundary, wherein the second percentage is greater than 1. Another possible way to define the second alert boundary is to: a second threshold is set, and a second alert boundary is equal to the back-stem boundary plus the second threshold. When the splash boundary is approached, the slope of the characteristic segment is negative in the descending trend, and the splash is judged to be caused.

Analyzing the variation of the values related to the characteristic segments, and judging whether smelting abnormity occurs or not; specifically, whether the increment of the value related to the characteristic segment exceeds a preset increment threshold value or not is analyzed, and if yes, the sputtering abnormity is judged to occur; and analyzing whether the decrement of the value related to the characteristic segment exceeds a preset decrement threshold value or not, and if so, judging that the drying-back abnormity occurs.

S500, constructing an in-furnace reaction digital twin body for converter smelting by digital twin body construction software for converter smelting; the in-furnace reaction digital twin includes: mapping and outputting a foam slag height mimicry model of the foam slag height in real time according to audio features, wherein the foam slag height mimicry model is created based on set smelting conditions and different reaction stages, and the set smelting conditions comprise a furnace type, a furnace volume ratio, an oxygen supply process and oxygen supply intensity; and mapping and outputting the tone distribution mimicry model in the smelting reaction stage in real time according to the audio characteristics.

And the in-furnace reaction digital twin body respectively outputs the height of the foamed slag and the smelting reaction stage in real time through the foamed slag height mimicry model and the color tone distribution mimicry model.

S600, introducing audio features into the in-furnace reaction digital twin body in a time sequence corresponding mode, driving the in-furnace reaction digital twin body by using the audio features, and executing corresponding remedial operation according to the occurrence or possible smelting abnormity. Specifically, the remedial operation corresponding to the smelting abnormality comprises the following steps: the remedy operation corresponding to the abnormal splashing or the abnormal splashing can be one or more of supplementing slag making materials, reducing the position of an oxygen lance and increasing the pressure supply of the oxygen lance, wherein the activity of generating foam is reduced through the slag making materials, so that the height of the foam slag is reduced; the remedial operation corresponding to the dryness returning abnormity or the occurrence of the dryness returning abnormity comprises one or more of ore supplement, oxygen lance position improvement and oxygen lance pressure supply reduction, wherein iron oxide is introduced through the ore, so that the activity of generating foam is increased, and the height of the foam slag is increased.

Furthermore, when the abnormal splashing is judged to occur or occur, the distance for reducing the position of the oxygen lance and/or the amount of adding slag making materials and/or changing the pressure supply amount of the oxygen lance is determined according to the difference between the value related to the audio characteristic and the splashing boundary and the slope of the audio characteristic. When the abnormal splashing is judged to occur or occur, the distance of the oxygen lance position is increased and/or the amount of added ore and/or the pressure supply amount of the oxygen lance is changed according to the difference between the value related to the audio characteristic and the return-to-dry boundary and the slope of the audio characteristic.

Example 2

Referring to fig. 4, an embodiment of the present application provides a digital twin control device for reaction in a converter, which is applied to a smelting process of a converter 1, and includes: the audio frequency slagging collecting module 4 is used for collecting the audio frequency characteristics of the converter mouth of the converter; the specific audio slagging collecting module 4 comprises a directional sonar collecting device, the directional sonar collecting device is electrically connected with a noise amplification and filtration device, and the noise amplification and filtration device is electrically connected with the smelting master control module 5 through a signal converter.

The smelting master control module 5 is configured with a reaction digital twin body in the furnace, analyzes the smelting abnormity which occurs or can occur by using audio characteristics, and gives a corresponding remedial operation instruction according to the occurrence or the possibility of the prior smelting abnormity;

the oxygen lance module 3 executes a remedial operation instruction of the smelting master control module to reduce or improve the lance position of the oxygen lance;

and the batching module 2 executes a remedial operation instruction of the smelting master control module to realize addition of ores or slagging of the materials.

Example 3

The embodiment of the application provides a storage medium for realizing a control method of a reaction digital twin body in a converter, wherein the storage medium for realizing the control method of the reaction digital twin body in the converter stores at least one instruction, and the instruction is read and executed to realize the control method of the reaction digital twin body in the converter.

Those skilled in the art will readily appreciate that the techniques of the embodiments of the present invention may be implemented as software plus a required general purpose hardware platform. Based on such understanding, the technical solutions in the embodiments of the present invention may be embodied in the form of a software product, where the computer software product is stored in a storage medium, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and the like, and the storage medium can store program codes, and includes instructions for enabling a computer terminal (which may be a personal computer, a server, or a second terminal, a network terminal, and the like) to perform all or part of the steps of the method in the embodiments of the present invention.

The same and similar parts in the various embodiments in this specification may be referred to each other. Especially, for the terminal embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant points can be referred to the description in the method embodiment.

In the embodiments provided by the present invention, it should be understood that the disclosed system, system and method can be implemented in other ways. For example, the above-described system embodiments are merely illustrative, and for example, the division of the units is only one logical functional division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, systems or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

Although the present invention has been described in detail by referring to the drawings in connection with the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and scope of the present invention, and these modifications or substitutions are within the scope of the present invention/any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.