RH pre-vacuum control method and related equipment

Abstract

This invention discloses a control method and related equipment for RH pre-vacuuming, relating to the field of RH vacuuming. The method primarily addresses the problem that RH pre-vacuuming can only be performed based on fixed parameters, lacking specificity and intelligence. The method comprises: obtaining a required processing time and a processing budget for a target molten steel; determining pre-vacuuming parameters for the target molten steel based on the required processing time and the processing budget; and performing pre-vacuuming based on the pre-vacuuming parameters. The present invention is used for controlling RH pre-vacuuming.

Description

Technical Field

[0001] The present invention relates to the field of RH vacuuming, and in particular to a control method for RH pre-vacuuming and related equipment. Background Art

[0002] RH off-furnace vacuum refining, also known as the RH vacuum cycle degassing method, can achieve rapid vacuum circulation of molten steel through pre-vacuuming, thereby improving the production efficiency of the RH furnace and assisting in decarburization. The specific operating steps are as follows: Before the molten steel is vacuumed, the vacuum system side is first vacuumed to remove the exhaust gas from the vacuum system side pipeline. After the molten steel is inserted into the vacuum chamber immersion pipe, the main valve between the vacuum system side and the vacuum chamber side is opened to connect the vacuum chamber side with the vacuum system side. This allows the vacuum chamber side to quickly reach a vacuum state and realize the metallurgical function of the molten steel in the vacuum chamber.

[0003] However, existing technologies only have one RH pre-vacuum mode, which has weak vacuuming capabilities. Due to the large volume of the vacuum system, the pre-vacuuming rate is slow, requiring a long time and resulting in high pre-vacuum pressure. Furthermore, when switching to vacuum after pre-vacuuming, the RH pre-vacuum mode is fixed to one, with weak vacuuming capabilities and a slow speed. This results in high vacuum pressure on the vacuum chamber side, making it impossible to quickly establish vacuum conditions and providing limited benefits for decarburization. Summary of the Invention

[0004] In view of the above problems, the present invention provides a control method and related equipment for RH pre-vacuuming, the main purpose of which is to solve the problem that RH pre-vacuuming can only operate based on fixed parameters and lacks specificity and intelligence.

[0005] To solve at least one of the above technical problems, in a first aspect, the present invention provides a method for controlling RH pre-vacuuming, the method comprising:

[0006] Obtain the required processing time and processing budget for the target molten steel;

[0007] Determine the pre-vacuum parameters of the target molten steel based on the required processing time and the processing budget;

[0008] Pre-vacuuming is performed based on the above pre-vacuuming parameters.

[0009] Optionally, the above-mentioned processing budget includes an economic budget and an energy-saving and consumption-reduction budget.

[0010] Optionally, the above pre-vacuum parameters include vacuum pump model grade, pumping capacity and steam consumption,

[0011] The pre-vacuum parameters of the target molten steel are determined based on the required processing time and the processing budget, including:

[0012] Based on the above required processing time and the above processing budget, the model grade, pumping capacity and steam consumption of the vacuum pump for the above target molten steel pre-vacuuming are determined.

[0013] Optionally, the required processing time is inversely proportional to the model grade, pumping capacity and steam consumption of the vacuum pump.

[0014] The above-mentioned vacuum pump model, grade, pumping capacity and steam consumption for the target molten steel pre-vacuuming are determined based on the above-mentioned required processing time and the above-mentioned processing budget, including:

[0015] Under the above-mentioned requirement of shortening the processing time, the model grade, exhaust capacity and steam consumption of the above-mentioned vacuum pumps are improved.

[0016] Optionally, the above processing budget is proportional to the above vacuum pump model grade, pumping capacity and steam consumption,

[0017] The above-mentioned vacuum pump model, grade, pumping capacity and steam consumption for the target molten steel pre-vacuuming are determined based on the above-mentioned required processing time and the above-mentioned processing budget, including:

[0018] When the above-mentioned processing budget is increased, the above-mentioned vacuum pump model grade, exhaust capacity and steam consumption are increased.

[0019] Optionally, the above method further includes:

[0020] Real-time detection of molten steel position;

[0021] Determining the interval time for the molten steel to arrive at the ladle based on the position of the molten steel and the position of the vacuum ladle;

[0022] Perform pre-vacuuming based on the above intervals.

[0023] Optionally, the pre-vacuuming based on the above interval time includes:

[0024] When the above-mentioned interval time is equal to the preset interval time, pre-vacuuming is performed based on the low vacuum pump model level, low pumping capacity and low steam consumption, wherein the above-mentioned preset interval time is the time required to complete the pre-vacuuming under the pre-vacuuming parameters of the low vacuum pump model level, low pumping capacity and low steam consumption.

[0025] In a second aspect, an embodiment of the present invention further provides a RH pre-vacuum control device, comprising:

[0026] An acquisition unit, used for acquiring a required processing time and a processing budget of a target molten steel;

[0027] A determination unit, configured to determine the pre-vacuum parameters of the target molten steel based on the required processing time and the processing budget;

[0028] The vacuum unit is used to perform pre-vacuuming based on the pre-vacuuming parameters.

[0029] In order to achieve the above object, according to the third aspect of the present invention, a computer-readable storage medium is provided, wherein the computer-readable storage medium includes a stored program, wherein when the program is executed by a processor, the steps of the above-mentioned RH pre-vacuum control method are implemented.

[0030] In order to achieve the above-mentioned purpose, according to the fourth aspect of the present invention, an electronic device is provided, comprising at least one processor and at least one memory connected to the above-mentioned processor; wherein the above-mentioned processor is used to call the program instructions in the above-mentioned memory to execute the steps of the above-mentioned RH pre-vacuum control method.

[0031] Through the above-mentioned technical solution, the control method and related equipment for RH pre-vacuuming provided by the present invention address the problem that RH pre-vacuuming can only operate based on fixed parameters, lacking specificity and intelligence. The present invention obtains the required processing time and processing budget of the target molten steel; determines the pre-vacuuming parameters of the target molten steel based on the required processing time and the processing budget; and performs pre-vacuuming based on the pre-vacuuming parameters. In this solution, the pre-vacuuming parameters are dynamically adjusted based on the processing time and the processing budget, thereby achieving a comprehensive consideration of economic benefits, energy-saving benefits, and work efficiency, thereby solving the technical problem of low pre-vacuuming efficiency in existing systems.

[0032] Correspondingly, the RH pre-vacuum control device, equipment, and computer-readable storage medium provided in the embodiments of the present invention also have the above-mentioned technical effects.

[0033] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are specifically listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present invention. The same reference symbols are used throughout the drawings to represent the same components. In the drawings:

[0035] Figure 1 A schematic flow chart of a RH pre-vacuum control method provided by an embodiment of the present invention is shown;

[0036] Figure 2A schematic block diagram of the composition of a RH pre-vacuum control device provided by an embodiment of the present invention is shown;

[0037] Figure 3 A schematic block diagram of the composition of an electronic device for controlling RH pre-vacuuming provided by an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0038] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0039] In order to solve the problem that RH pre-vacuuming can only be operated based on fixed parameters and lacks pertinence and intelligence, an embodiment of the present invention provides a control method for RH pre-vacuuming, such as Figure 1 As shown, the method includes:

[0040] S101. Obtaining the required processing time and processing budget of the target molten steel;

[0041] Illustratively, the required processing time and processing budget for the target molten steel are determined based on user expectations.

[0042] S102, determining the pre-vacuum parameters of the target molten steel based on the required processing time and the processing budget;

[0043] Exemplarily, the pre-vacuum parameters of the target molten steel are determined based on the required processing time and the processing budget, thereby achieving dynamic adjustment of the pre-vacuum parameters.

[0044] S103: Perform pre-vacuuming based on the pre-vacuuming parameters.

[0045] Through the above technical solution, the present invention provides a control method for RH pre-vacuuming, which addresses the problem that RH pre-vacuuming can only operate based on fixed parameters, lacking specificity and intelligence. The present invention obtains the required processing time and processing budget of the target molten steel; determines the pre-vacuuming parameters of the target molten steel based on the required processing time and the processing budget; and performs pre-vacuuming based on the pre-vacuuming parameters. In this solution, the pre-vacuuming parameters are dynamically adjusted based on the processing time and the processing budget, thereby achieving a comprehensive consideration of economic benefits, energy-saving benefits, and work efficiency, thereby solving the technical problem of low pre-vacuuming efficiency in existing systems.

[0046] In one embodiment, the processing budget includes an economic budget and an energy-saving and consumption-reduction budget.

[0047] Exemplarily, the above-mentioned processing budget includes an economic budget and an energy-saving and consumption-reduction budget, and a relatively neutral balance point needs to be determined between the two.

[0048] In one embodiment, the pre-vacuum parameters include the model grade of the vacuum pump, the vacuum capacity and the steam consumption.

[0049] The pre-vacuum parameters of the target molten steel are determined based on the required processing time and the processing budget, including:

[0050] Based on the above required processing time and the above processing budget, the model grade, pumping capacity and steam consumption of the vacuum pump for the above target molten steel pre-vacuuming are determined.

[0051] Exemplarily, based on the required processing time and the processing budget, the vacuum pump model grade, pumping capacity and steam consumption for the target molten steel pre-vacuuming are determined, thereby achieving dynamic adjustment of the vacuum pump model grade, pumping capacity and steam consumption.

[0052] In one embodiment, the required processing time is inversely proportional to the model grade, exhaust capacity and steam consumption of the vacuum pump.

[0053] The above-mentioned vacuum pump model, grade, pumping capacity and steam consumption for the target molten steel pre-vacuuming are determined based on the above-mentioned required processing time and the above-mentioned processing budget, including:

[0054] Under the above-mentioned requirement of shortening the processing time, the model grade, exhaust capacity and steam consumption of the above-mentioned vacuum pumps are improved.

[0055] For example, if the processing time is required to be shortened, the vacuuming efficiency can be improved by increasing the model grade, vacuuming capacity and steam consumption of the vacuum pump.

[0056] In one embodiment, the processing budget is proportional to the vacuum pump model, pumping capacity and steam consumption.

[0057] The above-mentioned vacuum pump model, grade, pumping capacity and steam consumption for the target molten steel pre-vacuuming are determined based on the above-mentioned required processing time and the above-mentioned processing budget, including:

[0058] When the above-mentioned processing budget is increased, the above-mentioned vacuum pump model grade, exhaust capacity and steam consumption are increased.

[0059] For example, if the processing budget is increased, the model grade, pumping capacity and steam consumption of the vacuum pump can also be increased to improve the vacuuming efficiency.

[0060] For example, the original pre-vacuum mode is defined as pre-vacuum mode 1. Based on this, the present invention develops multiple pre-vacuum modes, including pre-vacuum mode 2, pre-vacuum mode 3, and pre-vacuum mode 4, which are not specifically limited here. Pre-vacuum modes 1, 2, 3, and 4 are different vacuum pumps or a combination of multiple vacuum pumps. The pumping capacity, steam consumption, etc. are detailed in the following table:

[0061] Table 1 Pre-vacuum mode

[0062]

[0063] Among them, the above-mentioned pumping capacity: pumping capacity 1 < pumping capacity 2 < pumping capacity 3 < pumping capacity 4,

[0064] Steam consumption: steam consumption 1 < steam consumption 2 < steam consumption 3 < steam consumption 4,

[0065] Time: Time 1 > Time 2 > Time 3 > Time 4,

[0066] Vacuum pressure: Vacuum pressure 1 > Vacuum pressure 2 > Vacuum pressure 3 > Vacuum pressure 4,

[0067] It should be understood that the "vacuum pressure" mentioned in the table above refers to the vacuum pressure 1 achieved in pre-vacuum mode 1. Using this as a reference for comparison, pre-vacuum modes 2, 3, and 4 achieve a relatively shorter time. The "time" mentioned in the table above refers to the time 1 required for pre-vacuum mode 1 to reach vacuum pressure 1. Using this as a reference for comparison, pre-vacuum modes 2, 3, and 4 achieve a relatively lower vacuum pressure.

[0068] Based on the above table, pre-vacuum modes 2, 3, and 4 are more efficient. The order of efficiency is pre-vacuum mode 4 > pre-vacuum mode 3 > pre-vacuum mode 2 > pre-vacuum mode 1. Relatively speaking, the energy consumption is the opposite.

[0069] For example, before pre-vacuuming in the embodiment of the present invention, the time A for the molten steel to reach the vacuum treatment condition is calculated, and the calculated time A is compared with the above-mentioned time 1, 2, 3, and 4. The optimal pre-vacuuming mode is selected according to the efficiency and energy consumption.

[0070] If time A > time 1, you can select pre-vacuum mode 1, 2, 3, or 4;

[0071] If time 1> time A> time 2, you can select pre-vacuum mode 2, 3, or 4;

[0072] If time 2> time A> time 3, then you can select pre-vacuum mode 3 or 4;

[0073] If time 3> time A> time 4 or time A< time 4, pre-vacuum mode 4 is selected.

[0074] In one embodiment, the method further includes:

[0075] Real-time detection of molten steel position;

[0076] Determining the interval time for the molten steel to arrive at the ladle based on the position of the molten steel and the position of the vacuum ladle;

[0077] Perform pre-vacuuming based on the above intervals.

[0078] Exemplarily, the embodiment of the present invention can also detect the position of the molten steel in real time based on the sensor, so as to determine the interval time for the above-mentioned molten steel to reach the above-mentioned ladle, and perform pre-vacuuming based on the interval time to prevent the reserved time from being too short, resulting in poor pre-vacuuming effect.

[0079] In one embodiment, the pre-vacuuming based on the interval time includes:

[0080] When the above-mentioned interval time is equal to the preset interval time, pre-vacuuming is performed based on the low vacuum pump model level, low pumping capacity and low steam consumption, wherein the above-mentioned preset interval time is the time required to complete the pre-vacuuming under the pre-vacuuming parameters of the low vacuum pump model level, low pumping capacity and low steam consumption.

[0081] For example, within the preset interval time, pre-vacuuming can be completed under the pre-vacuuming parameters of low vacuum pump model grade, low pumping capacity and low steam consumption, and the vacuuming effect is high (because there is sufficient time). The embodiment of the present invention monitors the interval time of the molten steel arriving at the above-mentioned ladle in real time, and performs pre-vacuuming based on the low vacuum pump model grade, low pumping capacity and low steam consumption, thereby achieving pre-vacuuming with a lower economic budget and emissions.

[0082] Furthermore, as a response to the above Figure 1 In order to realize the method shown in the figure, the embodiment of the present invention also provides a RH pre-vacuum control device for Figure 1 This device embodiment corresponds to the aforementioned method embodiment. For ease of reading, this device embodiment will not describe the details of the aforementioned method embodiment one by one, but it should be clear that the device in this embodiment can implement all the contents of the aforementioned method embodiment. Figure 2 As shown, the device includes: an acquisition unit 21, a determination unit 22 and a vacuum unit 23, wherein

[0083] An acquisition unit 21 is used to acquire the required processing time and processing budget of the target molten steel;

[0084] A determination unit 22 is configured to determine the pre-vacuum parameters of the target molten steel based on the required processing time and the processing budget;

[0085] The vacuum unit 23 is used to perform pre-vacuuming based on the pre-vacuuming parameters.

[0086] The processor includes a core, which retrieves the corresponding program unit from the memory. One or more cores can be configured, and by adjusting core parameters, a RH pre-vacuum control method is implemented. This method addresses the issue of RH pre-vacuum operating based solely on fixed parameters, lacking specificity and intelligence.

[0087] An embodiment of the present invention provides a computer-readable storage medium, wherein the computer-readable storage medium includes a stored program, and when the program is executed by a processor, the RH pre-vacuum control method is implemented.

[0088] An embodiment of the present invention provides a processor, which is used to run a program, wherein the RH pre-vacuum control method is executed when the program is run.

[0089] An embodiment of the present invention provides an electronic device, comprising at least one processor and at least one memory connected to the processor; wherein the processor is configured to call program instructions in the memory to execute the RH pre-vacuum control method as described above.

[0090] An embodiment of the present invention provides an electronic device 30, such as Figure 3 As shown, the electronic device includes at least one processor 301, and at least one memory 302 and a bus 303 connected to the processor; wherein the processor 301 and the memory 302 communicate with each other through the bus 303; the processor 301 is used to call the program instructions in the memory to execute the above-mentioned RH pre-vacuum control method.

[0091] The intelligent electronic devices in this article can be PCs, PADs, mobile phones, etc.

[0092] The present application also provides a computer program product, which, when executed on a process management electronic device, is suitable for executing a program for initializing the above-mentioned RH pre-vacuum control method.

[0093] It should be noted that, in the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant description of other embodiments.

[0094] Those skilled in the art will appreciate that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.

[0095] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded computer, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0096] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0097] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0098] The present application also provides a computer program product, which includes computer software instructions. When the computer software instructions are executed on a processing device, the processing device is caused to execute the following Figure 1 This corresponds to the flow of memory control in the embodiment.

[0099] A computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function according to the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium can be any available medium that a computer can store or a data storage device such as a server or data center that includes one or more available media integrated. The available medium can be a magnetic medium (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid state drive (SSD)).

[0100] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0101] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of units is only a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interface, device or unit, which can be electrical, mechanical or other forms.

[0102] Units described as separate components may or may not be physically separate, and components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0103] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0104] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk, and other media that can store program code.

[0105] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A RH pre-vacuum control method, characterized in that: include: Obtain the required processing time and processing budget for the target molten steel; Determining pre-vacuum parameters of the target molten steel based on the required processing time and the processing budget; Performing pre-vacuuming based on the pre-vacuuming parameters; Real-time detection of molten steel position; Determining the interval time for the molten steel to arrive at the ladle based on the position of the molten steel and the position of the vacuum ladle; Performing pre-vacuuming based on the interval time; The pre-vacuuming based on the interval time includes: When the interval time is equal to the preset interval time, pre-vacuuming is performed based on the model level of the low vacuum pump, low pumping capacity and low steam consumption, wherein the preset interval time is the time required to complete the pre-vacuuming under the pre-vacuuming parameters of the low vacuum pump model level, low pumping capacity and low steam consumption; The processing budget includes an economic budget and an energy-saving and consumption-reducing budget; The pre-vacuum parameters include the vacuum pump model grade, pumping capacity and steam consumption. The determining of the pre-vacuum parameters of the target molten steel based on the required processing time and the processing budget includes: Determining the model grade, pumping capacity, and steam consumption of the vacuum pump for pre-vacuuming the target molten steel based on the required processing time and the processing budget; The required processing time is inversely proportional to the model grade, exhaust capacity and steam consumption of the vacuum pump. The determining of the model grade, pumping capacity and steam consumption of the vacuum pump for pre-vacuuming the target molten steel based on the required processing time and the processing budget includes: Under the condition that the processing time is required to be shortened, the model grade, exhaust capacity and steam consumption of the vacuum pump are improved; The processing budget is proportional to the vacuum pump model grade, pumping capacity and steam consumption, The determining of the model grade, pumping capacity and steam consumption of the vacuum pump for pre-vacuuming the target molten steel based on the required processing time and the processing budget includes: As the process budget increases, the vacuum pump model grade, pumping capacity and steam consumption are increased.

2. A RH pre-vacuum control device, characterized in that: include: An acquisition unit, used for acquiring a required processing time and a processing budget of a target molten steel; A determining unit, configured to determine pre-vacuum parameters of the target molten steel based on the required processing time and the processing budget; a vacuum unit, configured to perform pre-vacuuming based on the pre-vacuuming parameters; Real-time detection of molten steel position; Determining the interval time for the molten steel to arrive at the ladle based on the position of the molten steel and the position of the vacuum ladle; Performing pre-vacuuming based on the interval time; The pre-vacuuming based on the interval time includes: When the interval time is equal to the preset interval time, pre-vacuuming is performed based on the model level of the low vacuum pump, low pumping capacity and low steam consumption, wherein the preset interval time is the time required to complete the pre-vacuuming under the pre-vacuuming parameters of the low vacuum pump model level, low pumping capacity and low steam consumption; The processing budget includes an economic budget and an energy-saving and consumption-reducing budget; The pre-vacuum parameters include the vacuum pump model grade, pumping capacity and steam consumption. The determining of the pre-vacuum parameters of the target molten steel based on the required processing time and the processing budget includes: Determining the model grade, pumping capacity, and steam consumption of the vacuum pump for pre-vacuuming the target molten steel based on the required processing time and the processing budget; The required processing time is inversely proportional to the model grade, exhaust capacity and steam consumption of the vacuum pump. The determining of the model grade, pumping capacity and steam consumption of the vacuum pump for pre-vacuuming the target molten steel based on the required processing time and the processing budget includes: Under the condition that the processing time is required to be shortened, the model grade, exhaust capacity and steam consumption of the vacuum pump are improved; The processing budget is proportional to the vacuum pump model grade, pumping capacity and steam consumption, The determining of the model grade, pumping capacity and steam consumption of the vacuum pump for pre-vacuuming the target molten steel based on the required processing time and the processing budget includes: As the process budget increases, the vacuum pump model grade, pumping capacity and steam consumption are increased.

3. A computer-readable storage medium, characterized in that The computer-readable storage medium includes a stored program, wherein when the program is executed by a processor, the RH pre-vacuum control method of claim 1 is implemented.

4. An electronic device, characterized in that: The electronic device includes at least one processor and at least one memory connected to the processor; wherein the processor is used to call program instructions in the memory to execute the RH pre-vacuum control method according to claim 1.

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