CN114085955A - Method, device, equipment and medium for monitoring carbon content in vacuum decarburization process - Google Patents
Method, device, equipment and medium for monitoring carbon content in vacuum decarburization process Download PDFInfo
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- 238000005261 decarburization Methods 0.000 title claims abstract description 233
- 238000000034 method Methods 0.000 title claims abstract description 196
- 230000008569 process Effects 0.000 title claims abstract description 152
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 118
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 118
- 238000012544 monitoring process Methods 0.000 title claims abstract description 36
- 238000004364 calculation method Methods 0.000 claims abstract description 91
- 239000010959 steel Substances 0.000 claims abstract description 73
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 72
- 238000005070 sampling Methods 0.000 claims abstract description 35
- 238000002360 preparation method Methods 0.000 claims description 13
- 238000007670 refining Methods 0.000 claims description 10
- 238000005262 decarbonization Methods 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 238000004590 computer program Methods 0.000 claims description 5
- 238000012806 monitoring device Methods 0.000 claims description 4
- 238000003860 storage Methods 0.000 claims description 4
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- 239000007789 gas Substances 0.000 description 20
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- 230000008859 change Effects 0.000 description 7
- 229910002091 carbon monoxide Inorganic materials 0.000 description 6
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 238000007664 blowing Methods 0.000 description 4
- 230000001174 ascending effect Effects 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011261 inert gas Substances 0.000 description 3
- 239000002912 waste gas Substances 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 238000007872 degassing Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 150000001722 carbon compounds Chemical class 0.000 description 1
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- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/10—Handling in a vacuum
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- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
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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
- C21C2300/00—Process aspects
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Abstract
The invention discloses a method, a device, equipment and a medium for monitoring carbon content in a vacuum decarburization process, wherein the method comprises the following steps: monitoring the data state of the vacuum decarburization process, wherein the data state reflects the characteristic state from the start to the end of decarburization; if the data state is a steel ladle station entering state, computing and initializing a preset decarburization control model; if the data state is a vacuum starting state, inputting the collected carbon content related data of the vacuum decarburization process at each sampling moment into a preset decarburization control model to obtain the carbon content of molten steel at each sampling moment; and if the data state is the decarburization end state, stopping the calculation process of the preset decarburization control model on the carbon content. The method can adjust the state of the decarburization control model by analyzing and judging the data state of the vacuum decarburization process in real time, thereby realizing the online calculation and analysis of the decarburization model.
Description
Technical Field
The invention relates to the field of production control of metallurgical refining, in particular to a method, a device, equipment and a medium for monitoring carbon content in a vacuum decarburization process.
Background
The decarburization model by the vacuum cycle degassing method (Rheinstahl-Her-aeus, RH) can be divided into a process mechanism model, a data empirical model and a mass conservation model. The traditional process mechanism model is mostly used for analyzing off-line data, and the on-line application effect is poor. In any type of model, on-line calculation requires high precision and real-time performance of measured data (including exhaust gas flow, carbon monoxide and carbon dioxide content in the exhaust gas). It has been difficult to accurately analyze the change in the carbon content of molten steel from the start of decarburization to the end of decarburization.
Disclosure of Invention
The embodiment of the application provides a carbon content monitoring method, a carbon content monitoring device, equipment and a medium in a vacuum decarburization process, and the method can adjust the state of a decarburization control model by analyzing and judging the data state of the vacuum decarburization process in real time, so that the change of the carbon content in molten steel in the vacuum decarburization process of refined steel is obtained on line, and the carbon content in the molten steel can meet the qualified requirement.
In a first aspect, the present invention provides the following technical solutions through an embodiment of the present invention:
a method for monitoring the carbon content in a vacuum decarburization process comprises the following steps: monitoring a data state of the vacuum decarburization process, wherein the data state reflects a characteristic state from the start to the end of decarburization; if the data state is a steel ladle station entering state, computing and initializing a preset decarburization control model; if the data state is a vacuum starting state, inputting the collected carbon content related data of the vacuum decarburization process at each sampling time into a preset decarburization control model to obtain the carbon content of molten steel at each sampling time; and if the data state is a decarburization finishing state, stopping the calculation process of the preset decarburization control model on the carbon content.
Preferably, the method further comprises: and if the data state is a vacuum ending state, performing calculation ending and maintaining control on the preset decarburization control model.
Preferably, the method further comprises: acquiring process data of a vacuum decarburization process; based on the process data, a data state of the vacuum decarburization process is determined.
Preferably, the determining the data state of the vacuum decarburization process based on the process data comprises: and carrying out one-to-one correspondence on the process data and the data state of the vacuum decarburization process to obtain the data state corresponding to each process data.
Preferably, before stopping the calculation process of the carbon content by the preset decarburization control model, the method further includes: judging whether the carbon content of the currently obtained molten steel is qualified; if so, stopping the calculation process of the preset decarburization control model on the carbon content; if not, feeding back a state adjustment instruction to control the refining production line to continue to execute the vacuum decarburization operation until the carbon content of the molten steel is qualified.
Preferably, the computing initialization of the preset decarburization control model includes: monitoring whether the running state of the preset decarburization control model is in an un-started state or not; if yes, computing initialization is conducted on the preset decarburization control model, and a computing preparation state is entered.
Preferably, the inputting the collected data related to the carbon content of the vacuum decarburization process at each sampling time into a preset decarburization control model includes: and if the running state of the preset decarburization control model is a calculation preparation state, inputting the data related to the carbon content at the current sampling moment into the preset decarburization control model, triggering a calculation starting instruction, obtaining the carbon content of molten steel at the current sampling moment after the calculation is finished, and updating the running state of the preset decarburization control model to be the calculation proceeding state so as to calculate the carbon content of molten steel at the next sampling moment.
In a second aspect, the present invention provides the following technical solutions through an embodiment of the present invention:
a carbon content monitoring device for a vacuum decarburization process, comprising:
the monitoring module is used for monitoring the current data state of the vacuum decarburization process, wherein the data state reflects the characteristic state from the start to the end of decarburization;
the control module is used for calculating and initializing a preset decarburization control model if the data state is a steel ladle station entering state; if the data state is a vacuum starting state, inputting the collected carbon content related data of the vacuum decarburization process at each sampling time into a preset decarburization control model to obtain the carbon content of molten steel at each sampling time; and if the data state is a decarburization finishing state, stopping the calculation process of the preset decarburization control model on the carbon content.
In a third aspect, the present invention provides the following technical solutions through an embodiment of the present invention:
an electronic device, comprising: 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 the first aspect when executing the program.
In a fourth aspect, the present invention provides the following technical solutions according to an embodiment of the present invention:
a computer-readable storage medium, having stored thereon a computer program which, when being executed by a processor, carries out the steps of the method as provided in the preceding first aspect.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
according to the method, the device, the equipment and the medium for monitoring the carbon content in the vacuum decarburization process, provided by the embodiment of the invention, the data state of the vacuum decarburization process is monitored, wherein the data state reflects the characteristic state from the start to the end of decarburization, and if the monitored data state is the steel ladle station entering state, the preset decarburization control model is calculated and initialized; if the data state is monitored to be a vacuum starting state, inputting the collected carbon content related data of the vacuum decarburization process at each sampling moment into a preset decarburization control model to obtain the carbon content of molten steel at each sampling moment; and if the data state is the decarburization end state, stopping the calculation process of the preset decarburization control model on the carbon content. The method can monitor the current data state of the vacuum decarburization process in real time, and control the state of the preset decarburization control model based on the monitored data state, so that the online calculation and analysis of the carbon content of the molten steel in the vacuum decarburization process are realized through the preset decarburization control model, the whole-process prediction and tracking of the carbon content of the molten steel are realized, and the carbon content of the molten steel can further meet the qualified requirement.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
FIG. 1 is a flow chart of a method for monitoring carbon content in a vacuum decarburization process according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a first exemplary analysis for controlling a calculation state of a preset decarburization control model based on a data state according to an embodiment of the present invention;
fig. 3 is an analysis flowchart illustrating a second exemplary method for controlling a calculation state of a preset decarburization control model based on a data state according to an embodiment of the invention;
fig. 4 is an analysis flowchart illustrating a third exemplary method for controlling a calculation state of a preset decarburization control model based on a data state according to an embodiment of the invention;
FIG. 5 is a schematic diagram showing the relationship among the carbon content of molten steel, the data state and the model state in the vacuum decarburization process according to the embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a carbon content monitoring apparatus for a vacuum decarburization process according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
The embodiment of the application provides a method, a device, equipment and a medium for monitoring the carbon content in the vacuum decarburization process, and the method can adjust the state of a decarburization control model by analyzing and judging the data state of the vacuum decarburization process in real time, so that the online calculation and analysis of the decarburization model are realized.
In order to solve the technical problems, the general idea of the embodiment of the application is as follows:
the carbon content monitoring method in the vacuum decarburization process comprises the following steps: monitoring a data state of the vacuum decarburization process, wherein the data state reflects a characteristic state from the start to the end of decarburization; if the data state is a steel ladle station entering state, computing and initializing a preset decarburization control model; if the data state is a vacuum starting state, inputting the collected carbon content related data of the vacuum decarburization process at each sampling moment into a preset decarburization control model to obtain the carbon content of molten steel at each sampling moment; and if the data state is the decarburization end state, stopping the calculation process of the preset decarburization control model on the carbon content.
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
In a first aspect, an embodiment of the present invention provides a method for monitoring a carbon content in a vacuum decarburization process. Specifically, as shown in fig. 1, the carbon content monitoring method includes the following steps S101 to S102.
Step S101, monitoring the data state of the vacuum decarburization process, wherein the data state reflects the characteristic state from the start to the end of decarburization.
In a specific implementation process, the method may further include: acquiring process data of the vacuum decarburization process, and determining the data state of the vacuum decarburization process based on the process data. Specifically, the process data herein indicates each process to be performed in the vacuum decarburization process. For example, a vacuum decarburization process in a refining process may include: placing a steel ladle filled with molten steel in a refining station of a vacuum circulating degassing method (Rheinstahl-Her-aeus, RH), and vacuumizing a vacuum chamber; blowing inert gas into the ascending pipe; and (5) finishing blowing inert gas into the ascending pipe, and finishing vacuum at the same time to obtain qualified molten steel.
Therefore, the process data of the reaction vacuum decarburization process can be obtained based on the vacuum decarburization process in the refining process. And carrying out one-to-one correspondence on the process data and the data state of the vacuum decarburization process to obtain the data state corresponding to each process data.
Specifically, when a ladle containing molten steel is placed at an RH refining station, the upper computer acquires a ladle arrival signal which is used as process data of a vacuum decarburization process, and at the moment, the data state of the vacuum decarburization process is determined to be a ladle arrival state. When the vacuum chamber is vacuumized, the upper computer acquires a vacuum starting signal which is used as process data of the vacuum decarburization process, and at the moment, the data state of the vacuum decarburization process is determined to be a vacuum starting state.
When aluminum is added into molten steel, the upper computer acquires a decarburization end signal which is used as process data of the vacuum decarburization process, and at the moment, the data state of the vacuum decarburization process is determined to be a decarburization end state. When the inert gas is blown into the ascending pipe and the vacuum is finished, the upper computer acquires a vacuum finishing signal, and at the moment, the data state of the vacuum decarburization process is determined to be a vacuum finishing state.
Accordingly, the present application divides the data state of the vacuum decarburization process into a ladle-in state, a vacuum start state, a decarburization end state, and a vacuum end state.
Of course, instead of determining the data state of the vacuum decarburization process by acquiring progress data, the control of the decarburization end state may be based on judgment of the operating time, which may be empirical data. When the data state is determined through the process data, the station entering state, the vacuum starting state and the vacuum ending state of the ladle can be obtained in real time through field operation parameters.
Step S102, if the data state is a steel ladle station entering state, calculating and initializing a preset decarburization control model; if the data state is a vacuum starting state, inputting the collected carbon content related data of the vacuum decarburization process at each sampling moment into a preset decarburization control model to obtain the carbon content of molten steel at each sampling moment; and if the data state is the decarburization end state, stopping the calculation process of the preset decarburization control model on the carbon content.
It should be noted that the preset decarburization control model is a model capable of performing online analysis of the carbon content in the vacuum decarburization process. It may be any model that can implement this function, and this application is not limited.
Specifically, the model state reflects the state of the calculation of the preset decarburization control model, and the model calculation process is divided into a plurality of stages, so that the carbon content of molten steel can be tracked in real time based on the calculation process when vacuum starts. For example, the model states herein may include: calculation is not started, calculation initialization, calculation is started, calculation is performed, calculation is finished, and calculation finished is maintained.
In the actual on-site production process, since there are a plurality of successive decarburization processes, the calculation completion hold control here indicates a stage in which the present process model calculation is completed and the next process is not yet started.
In a specific embodiment, the computing and initializing the preset decarbonization control model may include: monitoring whether the running state of a preset decarburization control model is in an un-started state or not; if yes, computing initialization is carried out on the preset decarburization control model, and a computing preparation state is entered.
In an alternative embodiment, in order to analyze the calculation states of the models such that the model states correspond to the data states, as shown in fig. 2, an analysis flowchart for controlling the calculation states of the preset decarburization control model based on the data states is provided. Specifically, the process of performing calculation initialization on the model may include: monitoring the current data state of the vacuum decarburization process, if the data state is a steel ladle station entering state, monitoring whether the running state of the preset decarburization control model is an un-started state, if so, performing calculation initialization on the preset decarburization control model, entering a calculation preparation state, and if not, directly returning to the data state acquiring stage. And when the data state is not the steel ladle inbound state, continuing the next step.
In a specific embodiment, if the data state is a vacuum start state, the acquired data related to the carbon content in the vacuum decarburization process at each sampling time is input into a preset decarburization control model, so that the carbon content of molten steel at each sampling time is obtained.
As an alternative embodiment, the inputting the collected data related to the carbon content of the vacuum decarburization process at each sampling time into the preset decarburization control model may include: if the operation state of the preset decarburization control model is a calculation preparation state, inputting the data related to the carbon content at the current sampling time into the preset decarburization control model, triggering a calculation starting instruction, obtaining the carbon content of molten steel at the current sampling time after the calculation is completed, and updating the operation state of the preset decarburization control model to be a calculation proceeding state so as to calculate the carbon content of molten steel at the next sampling time.
Specifically, as shown in fig. 2, when the data state is the vacuum start state, it is determined whether the model state is calculation ready, if so, the model state is set as the calculation start state, the decarburization model calculation at the current time is performed to obtain the current carbon content, and then the data state obtaining stage is returned to prepare for starting the next data analysis. And the current model state is not prepared for calculation, and in order to start calculation, the model state is set to be calculated, decarburization model calculation at the current moment is carried out, then the stage of obtaining the data state is returned, and the next data analysis is prepared to start. And when the model state is not the calculation start, performing decarburization model calculation at the current moment for calculation, and returning to the stage of acquiring the data state. And when the model state is other, directly returning to the stage of acquiring the data state. When the data state is not vacuum started, continue to the next step.
Specifically, if the data state is a decarburization end state, determining whether the current model state is calculation end, if so, directly returning to the data state acquisition stage to prepare for starting the next data analysis, if not, setting to stop the calculation process of the preset decarburization control model on the carbon content, and ending the calculation and returning to the data state acquisition stage. When the data state is not the decarburization end, the next step is continued.
In a specific embodiment, the carbon content monitoring method may further include: and if the data state is a vacuum ending state, performing starting preparation before next calculation on the preset decarburization control model.
Specifically, if the data state is the vacuum end state, the model state is set to perform calculation end holding control, the decarburization process data analysis of the current furnace is ended, and if the data state is not the vacuum end state, the process returns to the stage of acquiring the data state.
As another alternative embodiment, as shown in fig. 3, an analysis process for controlling the calculation state of the preset decarburization control model based on the data state may further include:
and monitoring the current data state of the vacuum decarburization process, judging whether the current data state is a steel ladle station entering state, if not, setting the model state as a calculation non-starting state, and returning to the stage of acquiring the data state. And if the current data state meets the steel ladle station entering state, continuously judging whether the current data state is a vacuum starting state, if not, judging whether the current model state is a calculation non-starting state, if the calculation non-starting state is the calculation non-starting state, setting the model state as calculation initialization, returning to the stage of acquiring the data state, and preparing to start the next data analysis. And if the model state is not the state of calculation, directly returning to the stage of acquiring the data state.
And if the current data state meets the vacuum starting state, continuously judging whether the current data state is a decarburization finishing state, if not, judging whether the current model state is calculation preparation, if so, setting the model state as the calculation start, performing decarburization model calculation at the current moment, returning to the stage of acquiring the data state, and preparing to start the next data analysis. And if the current model state is calculation start, setting the current model state as calculation, performing decarburization model calculation at the current moment, returning to the stage of acquiring the data state, and preparing to start the next data analysis. And if the current model state is calculation, performing decarburization model calculation at the current moment, and returning to the stage of acquiring the data state. And when the model state is other, directly returning to the stage of acquiring the data state.
And if the current data state meets the decarburization end state, continuously judging whether the current data state is a vacuum end state, if not, judging whether the current model state is calculation, if so, setting the model state as calculation end, and ending the data analysis of the decarburization process of the furnace. And if the model state is not calculated, ending the data analysis of the decarburization process of the furnace. And when the data state meets the vacuum condition, setting the model state as that the calculation is not started, and finishing the data analysis of the decarburization process of the furnace.
Of course, as another alternative embodiment, the determination of the decarburization ending period may be obtained by an online calculation of a preset decarburization model, in addition to the determination of the data state described above.
Specifically, as shown in fig. 4, before stopping the calculation of the carbon content by the preset decarburization control model, in order to make the carbon content of the molten steel after the decarburization control process meet the condition requirement, the method may further include: judging whether the carbon content of the currently obtained molten steel is qualified; if so, stopping the calculation process of the preset decarburization control model on the carbon content; if not, feeding back a state adjustment instruction to control the refining production line to continue to execute the vacuum decarburization operation until the carbon content of the molten steel is qualified.
When the decarburization model is calculated at the current moment, the carbon content change in the decarburization process is monitored in real time, so that the current carbon content of molten steel is obtained, whether the carbon content of the currently obtained molten steel is qualified or not is judged, if yes, the calculation process of the preset decarburization control model on the carbon content is stopped, and if not, a state adjustment instruction is fed back to equipment in real time to control a refining production line to continue to execute vacuum decarburization operation until the carbon content of the molten steel is qualified. And after the carbon content of the molten steel is qualified, feeding a qualified signal back to the equipment, and adjusting the current data state to finish decarburization by the equipment.
Specifically, during the decarburization process, CO or CO is generated due to the carbon removed from the molten steel2The gas enters the waste gas, so that in the online analysis process, the change of the carbon content in the decarburization process is monitored in real time through a preset decarburization model, and the method can comprise the following steps: and obtaining the carbon content change in the decarburization process by acquiring process data in real time. For example, process data includes: flow rate of exhaust gas, and carbon monoxide CO and carbon dioxide CO in exhaust gas2Content, exhaust gas pressure, exhaust gas temperature, oxygen blowing flow rate, and the like. Among these process data, part of the data is measured parameters at a certain time during the decarburization process, and part of the data is calculated parameters at a certain stage during the decarburization prediction.
Alternatively, the flow rate of the exhaust gas, the content of CO in the exhaust gas, and CO may be varied according to the amount of the exhaust gas2Obtaining the variable quantity of the carbon content of the molten steel by content, waste gas pressure, waste gas temperature and oxygen blowing flow; and if the variable quantity meets a preset condition, determining that the decarburization stage of the vacuum decarburization process is the end of decarburization.
As an alternative example, the carbon content of the molten steel remaining in the molten steel after the lapse of the time range t may be obtained by the following equation. Specifically, the calculation formula of the carbon content taken away in the time range t is as follows:
in the formula: m isC(t) the total carbon amount, kg, taken away by the exhaust gas at the decarbonization time t;
nC(t) the amount of carbon species, mol, entering the off-gas from the molten steel at the decarburization time t;
MCis the molar mass of carbon, 12 g/mol;
t is the decarburization time period, s.
According to the ideal gas state equation, the following can be known:
XC(t)＝XCO(t)+XCO2(t)
in the formula: qoff(t) volumetric flow of exhaust gas at the time of decarburization at t, m3/h；
α is the model correction coefficient, -;
XC(t) CO and CO in the exhaust gas at the decarbonization time t2A volume fraction;
XCO(t) is the volume percent CO in the off-gas at the decarbonization time t;
p (t) is a gas pressure Pa when the decarburization time is t;
r is the ideal gas constant, 8.314J/(mol.K);
t is the exhaust gas temperature, K.
The formula for calculating the residual carbon content in the molten steel after the time range t is as follows:
in the formula: p is a radical ofC(t) is in the channelThe carbon content in the molten steel after the time t, ppm;
wC0is the initial carbon content in the molten steel, ppm;
msis the molten steel mass, t.
And thus, the carbon content in the molten steel after the time range t is obtained, and if the carbon content in the molten steel at the moment meets the preset condition, the decarburization stage in the vacuum decarburization process is determined as the end of decarburization. For example, the predetermined condition is that the carbon content in the molten steel is 20 ppm.
As shown in FIG. 5, the relationship among the change of carbon content of molten steel, the data state and the model state in the RH decarburization process of a certain plant is shown, wherein the abscissa represents the decarburization time and the ordinate represents the change of carbon content. Before the data state is that the ladle enters the station, the model state is always in a state that the calculation is not started; when the acquired data state is a steel ladle station entering state, computing and initializing the set model state as computing preparation; when the data acquisition state is a vacuum starting state, starting a preset decarburization model, and enabling the model state to be calculation; when the carbon content of the molten steel reaches a preset condition, setting a preset decarburization model to stop the calculation process of the carbon content, wherein the data state is a decarburization end state; and after the decarburization related process is closed, acquiring the data state as a vacuum ending state, and setting the preset decarburization model as a calculation ending maintenance state.
In summary, the method for monitoring carbon content in a vacuum decarburization process provided by the embodiment of the invention can adjust the state of the decarburization control model by analyzing and judging the data state of the vacuum decarburization process in real time, thereby realizing online calculation and analysis of the decarburization model.
In a second aspect, based on the same inventive concept, the present embodiment provides a carbon content monitoring apparatus for a vacuum decarburization process, as shown in fig. 6, including:
a monitoring module 401, configured to monitor a data state of a vacuum decarburization process, where the data state reflects a characteristic state from start to end of decarburization;
the control module 402 is configured to perform calculation initialization on a preset decarburization control model if the data state is a steel ladle station entering state; if the data state is a vacuum starting state, inputting the collected carbon content related data of the vacuum decarburization process at each sampling moment into a preset decarburization control model to obtain the carbon content of molten steel at each sampling moment; and if the data state is the decarburization end state, stopping the calculation process of the preset decarburization control model on the carbon content.
As an alternative embodiment, the control module 402 is further configured to: and if the data state is a vacuum ending state, performing starting preparation before next calculation on the preset decarburization control model.
As an alternative embodiment, the apparatus further comprises:
the process data acquisition sub-model is used for acquiring process data of the vacuum decarburization process;
and the data state determination submodel is used for determining the data state of the vacuum decarburization process based on the process data.
As an alternative embodiment, the data state determination submodel is configured to:
and carrying out one-to-one correspondence on the process data and the data state of the vacuum decarburization process to obtain the data state corresponding to each process data.
As an alternative embodiment, the control module 402 is further configured to:
judging whether the carbon content of the currently obtained molten steel is qualified; if so, stopping the calculation process of the preset decarburization control model on the carbon content; if not, feeding back a state adjustment instruction to control the refining production line to continue to execute the vacuum decarburization operation until the carbon content of the molten steel is qualified.
As an alternative embodiment, the control module 402 is further configured to:
monitoring whether the running state of the preset decarburization control model is in an un-started state or not; if yes, computing initialization is conducted on the preset decarburization control model, and a computing preparation state is entered.
As an alternative embodiment, the control module 402 is further configured to:
if the running state of the preset decarburization control model is a calculation preparation state, inputting the data related to the carbon content at the current sampling time into the preset decarburization control model, triggering a calculation starting instruction, obtaining the carbon content of molten steel at the current sampling time after the calculation is completed, and updating the running state of the preset decarburization control model to be a calculation proceeding state so as to calculate the carbon content of molten steel at the next sampling time.
The above modules may be implemented by software codes, and in this case, the modules may be stored in a memory of the control device. The above modules may also be implemented by hardware, such as an integrated circuit chip.
The carbon content monitoring device for the vacuum decarburization process provided by the embodiment of the invention has the same implementation principle and technical effect as the method embodiments, and for brief description, the corresponding contents in the method embodiments can be referred to where the device embodiments 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. 7, including: a memory 501, a processor 502 and a computer program 503 stored on the memory and executable on the processor, the processor 501, when executing the program, implementing the steps of the carbon content monitoring method of the first aspect.
In a fourth aspect, based on the same inventive concept, the present embodiment provides a non-transitory computer-readable storage medium, wherein instructions of the storage medium, when executed by a processor of the electronic device 500, enable the electronic device 500 to perform the steps of the carbon content monitoring method according to the first aspect.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
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. Therefore, it is intended that the appended claims be interpreted as including 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 changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A carbon content monitoring method in a vacuum decarburization process is characterized by comprising the following steps:
monitoring a data state of the vacuum decarburization process, wherein the data state reflects a characteristic state from the start to the end of decarburization;
if the data state is a steel ladle station entering state, computing and initializing a preset decarburization control model;
if the data state is a vacuum starting state, inputting the collected carbon content related data of the vacuum decarburization process at each sampling time into a preset decarburization control model to obtain the carbon content of molten steel at each sampling time;
and if the data state is a decarburization finishing state, stopping the calculation process of the preset decarburization control model on the carbon content.
2. The method of claim 1, further comprising:
and if the data state is a vacuum ending state, performing calculation ending and maintaining control on the preset decarburization control model.
3. The method of claim 1, further comprising:
acquiring process data of a vacuum decarburization process;
based on the process data, a data state of the vacuum decarburization process is determined.
4. The method of claim 3, wherein the determining the data state of the vacuum decarburization process based on the process data comprises:
and carrying out one-to-one correspondence on the process data and the data state of the vacuum decarburization process to obtain the data state corresponding to each process data.
5. The method of claim 1, wherein before stopping the calculation of the carbon content by the preset decarburization control model, the method further comprises:
judging whether the carbon content of the currently obtained molten steel is qualified;
if so, stopping the calculation process of the preset decarburization control model on the carbon content;
if not, feeding back a state adjustment instruction to control the refining production line to continue to execute the vacuum decarburization operation until the carbon content of the molten steel is qualified.
6. The method of claim 1, wherein the computationally initializing the preset decarbonization control model comprises:
monitoring whether the running state of the preset decarburization control model is in an un-started state or not;
if yes, computing initialization is conducted on the preset decarburization control model, and a computing preparation state is entered.
7. The method of claim 1, wherein the inputting of the collected carbon content related data of the vacuum decarbonization process at each sampling time into a preset decarbonization control model comprises:
and if the running state of the preset decarburization control model is a calculation preparation state, inputting the data related to the carbon content at the current sampling moment into the preset decarburization control model, triggering a calculation starting instruction, obtaining the carbon content of molten steel at the current sampling moment after the calculation is finished, and updating the running state of the preset decarburization control model to be the calculation proceeding state so as to calculate the carbon content of molten steel at the next sampling moment.
8. A carbon content monitoring device for a vacuum decarburization process, comprising:
the monitoring module is used for monitoring the current data state of the vacuum decarburization process, wherein the data state reflects the characteristic state from the start to the end of decarburization;
the control module is used for calculating and initializing a preset decarburization control model if the data state is a steel ladle station entering state; if the data state is a vacuum starting state, inputting the collected carbon content related data of the vacuum decarburization process at each sampling time into a preset decarburization control model to obtain the carbon content of molten steel at each sampling time; and if the data state is a decarburization finishing state, stopping the calculation process of the preset decarburization control model on the carbon content.
9. An electronic device, comprising: memory, processor and computer program stored on the memory and executable on the processor, the processor implementing the steps of the method of any one of claims 1 to 7 when executing the program.
10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 7.
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