Converter smelting determination method and device, electronic equipment and storage medium

Abstract

The invention discloses a converter smelting determination method and device, electronic equipment and a storage medium, and belongs to the technical field of converter smelting. The method comprises the following steps: matching a first gas content in an evaporative cooler before a converter to be detected is loaded with a first preset gas content standard, and determining a matching result; based on a matching result, determining whether to start blowing of the to-be-detected converter or not; after it is determined that blowing of the to-be-detected converter is started, whether a blowing permission instruction for blowing the to-be-detected converter is generated or not is determined on the basis of the second gas content at the outlet of the electrostatic dust collector before blowing and a second preset gas content standard; and after it is determined that the blowing permission instruction for blowing the converter to be detected is generated, the oxygen lance is controlled to descend in response to the blowing permission instruction, and the blowing process is started based on the preset oxygen lance control parameters corresponding to the oxygen lance. According to the invention, standardization of blowing of converters of different steel plant equipment can be realized. And the production efficiency and the yield of steel are further improved.

Description

Technical Field

[0001] This application relates to the field of converter smelting technology, and in particular to a method, apparatus, electronic equipment and storage medium for determining converter smelting. Background Technology

[0002] Currently, converter blowing is an important process in steel production, mainly used to convert pig iron (blast furnace hot metal) into steel. Therefore, whether converter blowing can directly pass through mixed gas directly affects the stability of the steel plant's production rhythm. At the same time, as the core equipment in the steel smelting process, the converter has extremely high requirements for safety and environmental protection. Therefore, avoiding the problem of mixed gas in the converter blowing process is of great significance for improving production stability and the safety and environmental protection of the equipment system.

[0003] However, current methods for dry dust removal in converters and preventing gas mixing within the furnace are only applied to a single aspect of the process flow, without taking into account the standardized requirements of equipment layout and process operation habits in different steelmaking plants. This results in lower steel production efficiency and output. Summary of the Invention

[0004] This application provides a method, apparatus, electronic device, and storage medium for determining converter smelting. The embodiments provided by this application solve the technical problem of low steel production efficiency and output in the prior art. These embodiments enable standardization of the blowing process for converters equipped in different steel plants, thereby improving steel production efficiency and output.

[0005] In a first aspect, this application provides a method and apparatus for determining converter smelting, wherein the method for determining converter smelting includes: The content of the first gas in the pre-evaporative cooler of the converter to be tested is matched with the first preset gas content standard to determine the matching result; Based on the matching results, determine whether to initiate the blowing process on the converter to be tested; After determining to start the blowing of the converter to be tested, based on the second gas content at the outlet of the electrostatic precipitator before blowing and the second preset gas content standard, it is determined whether to generate a blowing permit instruction to blow the converter to be tested. After determining that the blowing permission instruction to blow the converter to be tested is generated, in response to the blowing permission instruction, the oxygen lance is controlled to descend, and the blowing process is started based on the preset oxygen lance control parameters corresponding to the oxygen lance, so as to complete the smelting of the converter to be tested.

[0006] In one feasible implementation, the first gas content includes hydrogen concentration, the first preset gas content standard includes a preset hydrogen concentration safety threshold, and the step of matching the first gas content in the pre-evaporator cooler of the converter to be tested with the first preset gas content standard to determine the matching result includes: If the hydrogen concentration in the pre-evaporation cooler of the converter to be tested is less than the preset hydrogen concentration safety threshold, then the matching is determined to be successful; If the hydrogen concentration in the pre-evaporator cooler of the converter to be tested is greater than or equal to the preset hydrogen concentration safety threshold, then the matching is determined to be unsuccessful.

[0007] In one feasible implementation, determining whether to initiate blowing on the converter to be tested based on the matching result includes: If the match is successful, the blowing process for the converter to be tested will be initiated. If the match is unsuccessful, the blowing process on the converter to be tested will not be initiated.

[0008] In one feasible implementation, the second gas content includes an oxygen concentration, and the second preset gas content standard includes a preset oxygen range. The step of determining whether to generate a blowing permit order for the converter under test based on the second gas content at the electrostatic precipitator outlet before blowing and the second preset gas content standard includes: If the oxygen concentration at the outlet of the electrostatic precipitator before blowing is within the preset oxygen range, a blowing permit instruction to blow the converter to be tested is generated. If the oxygen concentration at the outlet of the electrostatic precipitator before blowing is not within the preset oxygen range, it is determined that no blowing permission instruction will be generated for blowing the converter to be tested, and a converter skirt removal instruction will be generated for sealing the converter skirt.

[0009] In one feasible implementation, the preset oxygen lance control parameters include a preset oxygen ignition point height, a preset oxygen lance ignition position, and a preset ignition descent position. The step of starting the blowing process based on the preset oxygen lance control parameters includes: Based on the preset oxygen ignition point height, the oxygen lance is controlled to begin descending until it reaches the preset oxygen lance ignition position, at which point an ignition command is generated. In response to the ignition command, the oxygen lance is controlled to begin blowing oxygen into the converter under test, and the descent position of the oxygen lance is maintained above the preset ignition descent position.

[0010] In one feasible implementation, after the blowing process is started based on the preset oxygen lance control parameters corresponding to the oxygen lance, the determination method further includes: After the oxygen lance ignition failure is detected, the flue in the converter to be tested is purged for a preset duration based on the preset converter rocking angle and preset nitrogen flow rate until the number of times the converter to be tested is rocked reaches the preset rocking number threshold. The pre-set dose of decarburized material is added to the converter to be tested, and the oxygen lance is ignited again.

[0011] In one feasible implementation, after determining that a mismatch has occurred if the hydrogen concentration in the pre-loading evaporator of the converter to be tested is greater than or equal to the preset hydrogen concentration safety threshold, the determination method further includes: Based on the preset material loading order, the smelting materials are loaded into the converter to be tested to determine the mixed molten iron. The preset material loading order is used to characterize the loading order of scrap steel first and then molten iron. The converter to be tested, which is loaded with the mixed molten iron, is subjected to a shaking operation and a secondary dust removal operation until the hydrogen concentration in the evaporator cooler is less than the preset hydrogen concentration safety threshold.

[0012] In a second aspect, this application provides a converter smelting determination apparatus, the converter smelting determination apparatus comprising: The first determining module is used to match the content of the first gas in the pre-evaporator cooler of the converter to be tested with the first preset gas content standard, and determine the matching result; The second determining module is used to determine, based on the matching result, whether to start the blowing process on the converter to be tested; The third determining module is used to determine, after determining to start the blowing of the converter to be tested, whether to generate a blowing permit instruction to blow the converter to be tested based on the second gas content at the outlet of the electrostatic precipitator before blowing and the second preset gas content standard. After determining that the blowing permission instruction to blow the converter to be tested is generated, in response to the blowing permission instruction, the oxygen lance is controlled to descend, and the blowing process is started based on the preset oxygen lance control parameters corresponding to the oxygen lance, so as to complete the smelting of the converter to be tested.

[0013] In a third aspect, this application provides an electronic device, including a processor, a memory, and a bus. The memory stores machine-readable instructions executable by the processor. When the electronic device is running, the processor communicates with the memory via the bus, and the machine-readable instructions are executed by the processor to perform the steps of the converter smelting determination method described above.

[0014] In a fourth aspect of this application, an embodiment of this application provides a computer-readable storage medium storing a computer program that, when executed by a processor, performs the steps of the converter smelting determination method described above.

[0015] The converter smelting determination method, apparatus, electronic equipment, and storage medium provided in this application, compared with the prior art, match the first gas content in the evaporative cooler before the converter to be tested is loaded with a first preset gas content standard, determine the matching result, and then determine whether to start the blowing process of the converter to be tested based on the matching result. After determining to start the blowing process, based on the second gas content at the outlet of the electrostatic precipitator before blowing and the second preset gas content standard, determine whether to generate a blowing permit instruction for the converter to be tested. After determining to generate a blowing permit instruction for the converter to be tested, in response to the blowing permit instruction, control the oxygen lance to descend, and start the blowing process based on the preset oxygen lance control parameters corresponding to the oxygen lance to complete the smelting of the converter to be tested. This application can achieve standardization of the blowing process for converters equipped in different steel plants, thereby improving the production efficiency and output of steel. Attached Figure Description

[0016] Figure 1 A flowchart illustrating a method for determining converter smelting according to an embodiment of this application is shown. Figure 2 This paper shows a structural block diagram of a converter smelting apparatus provided in an embodiment of this application; Figure 3 A schematic diagram of the structure of an electronic device provided in an embodiment of this application is shown.

[0017] Figure 2 and Figure 3 The correspondence between the figure labels and figure titles in the accompanying drawings is as follows: 200 Determining device for converter smelting; 210 First determining module; 220 Second determining module; 230 Third determining module; 240 Control module; 250 Fourth determining module; 260 Processing module; 300 Electronic equipment; 310 Processor; 320 Memory; 330 Bus. Detailed Implementation

[0018] To better understand the technical solutions provided in the embodiments of this specification, the technical solutions of the embodiments of this specification will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments of this specification and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this specification, rather than limitations on the technical solutions of this specification. In the absence of conflict, the embodiments of this specification and the technical features in the embodiments can be combined with each other.

[0019] In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. The term "two or more" includes two or more cases.

[0020] First, the applicable application scenarios of this application will be introduced. The embodiments provided in this application are applicable to the field of converter smelting technology.

[0021] Currently, methods for dry dust removal in converters and preventing gas mixing within the furnace are only applied to a single aspect of the process, without taking into account the standardized requirements of different steelmaking plants' equipment layouts and operational habits. This results in lower steel production efficiency and output.

[0022] Based on this, embodiments of this application provide a method, apparatus, electronic device, and storage medium for determining converter smelting. The embodiments provided by this application solve the technical problem of low steel production efficiency and output in the prior art. The embodiments provided by this application can standardize the blowing process for converters equipped in different steel plants, thereby improving steel production efficiency and output.

[0023] Figure 1 This is a flowchart illustrating a method for determining converter smelting parameters according to an embodiment of this application. Figure 1 As shown, the method for determining converter smelting includes the following steps: S101. Match the content of the first gas in the pre-evaporator cooler of the converter to be tested with the first preset gas content standard, and determine the matching result.

[0024] In this step, if the embodiments provided in this application want to ensure that the dry dust removal method for the converter avoids gas mixing in the converter under test, it is first necessary to determine whether the content of the first gas in the evaporator cooler before the converter under test is loaded meets the first preset gas content standard, and match it with the above-mentioned first preset gas content standard to determine the matching result.

[0025] In this application, the first preset gas can be customized and used according to different application scenarios and usage conditions. In the embodiments provided by this application, the first gas can be set to hydrogen.

[0026] For example, the first preset gas content standard includes a preset hydrogen concentration safety threshold. The first gas content in the pre-evaporator cooler of the converter to be tested is matched with the first preset gas content standard to determine the matching result, including: If the hydrogen concentration in the evaporative cooler before the converter to be tested is less than the preset hydrogen concentration safety threshold, the matching is considered successful; if the hydrogen concentration in the evaporative cooler before the converter to be tested is greater than or equal to the preset hydrogen concentration safety threshold, the matching is considered unsuccessful.

[0027] It should be explicitly stated that the embodiments provided in this application require comparing and matching the hydrogen concentration with the preset hydrogen concentration safety threshold required in the first preset gas content standard to determine whether the hydrogen concentration exceeds the preset hydrogen concentration safety threshold. If it does, the matching is determined to be successful, thereby reducing the risk of deflagration caused by the electric field of smoke gases, including hydrogen.

[0028] In the embodiments provided in this application, the first preset gas content standard, namely the preset hydrogen concentration safety threshold, can be customized and used according to different application scenarios, such as according to different converter specifications. The preset hydrogen concentration safety threshold in the embodiments provided in this application can be set to 3%.

[0029] S102. Based on the matching results, determine whether to start the blowing process of the converter to be tested.

[0030] Understandably, if the match is successful, the blowing process of the converter to be tested will be started; if the match is unsuccessful, the blowing process of the converter to be tested will not be started.

[0031] If the matching fails, meaning the hydrogen concentration is greater than or equal to the preset hydrogen concentration safety threshold, there is a safety issue with the gas concentration in the converter. In this case, the converter to be tested cannot be directly blown, as this could easily cause a deflagration.

[0032] S103. After determining to start the blowing process of the converter to be tested, based on the second gas content at the outlet of the electrostatic precipitator before blowing and the second preset gas content standard, determine whether to generate a blowing permit instruction for blowing the converter to be tested.

[0033] In this step, after determining that the blowing of the converter to be tested can be started, the embodiment provided in this application begins to check the content of the second gas (i.e. the content of the mixed gas) at the outlet of the electrostatic precipitator before the blowing starts, and determines whether the second gas content meets the conditions for starting the blowing, that is, by matching the content of the second gas at the outlet of the electrostatic precipitator before the blowing starts with the second preset gas content standard.

[0034] For example, if the match is successful, the blowing process of the converter to be tested is started; if the match is unsuccessful, the blowing process of the converter to be tested is not started.

[0035] In this application, the second preset gas can be customized and used according to different application scenarios and usage conditions. In the embodiments provided by this application, the second gas can be set to oxygen.

[0036] For example, the second gas content includes oxygen concentration, and the second preset gas content standard includes a preset oxygen range. Based on the second gas content at the electrostatic precipitator outlet before blowing and the second preset gas content standard, it is determined whether to generate a blowing permit instruction for the converter to be tested, including: If the oxygen concentration at the outlet of the electrostatic precipitator before blowing is within the preset oxygen range, a blowing permit instruction for blowing the converter to be tested is generated; if the oxygen concentration at the outlet of the electrostatic precipitator before blowing is not within the preset oxygen range, a blowing permit instruction for blowing the converter to be tested is not generated, and a converter skirt removal instruction for sealing the converter skirt is generated.

[0037] In the above-mentioned embodiments, the oxygen concentration is compared and matched with the preset oxygen range required in the second preset gas content standard to determine that the oxygen concentration is within the preset oxygen range. If the oxygen concentration is within the preset oxygen range, a blowing permit instruction is generated for the converter to be tested to blow, and blowing can be carried out by lowering the lance. If the oxygen concentration is not within the preset oxygen range, a converter skirt sealing instruction is generated for the converter to be tested to shake out the skirt, and after the slag is poured out, it is prohibited to straighten the converter and wait for blowing.

[0038] In the embodiments provided in this application, the second preset gas content standard, namely the preset oxygen range, can be customized and used according to different application scenarios, such as according to different converter specifications. The preset oxygen range in the embodiments provided in this application can be set to 21±1%.

[0039] S104. After determining that a blowing permit instruction has been generated for the converter to be tested, in response to the blowing permit instruction, the oxygen lance is controlled to descend, and the blowing process is started based on the preset oxygen lance control parameters corresponding to the oxygen lance to complete the smelting of the converter to be tested.

[0040] In this step, after generating the blowing permit instruction for the converter to be tested, the embodiment provided in this application first performs an initial blowing operation based on the first preset oxygen flow rate, and increases the oxygen flow rate to the second preset flow rate range within a preset time. Then, based on the preset oxygen lance control parameters corresponding to the oxygen lance, it controls the oxygen lance to descend and starts the blowing process.

[0041] It is understood that the settings of the first preset oxygen flow rate and the second preset flow rate range in the embodiments provided in this application can also be customized and used according to different usage conditions and application scenarios. The first preset oxygen flow rate in the embodiments provided in this application can be set to 22000 Nm3 / h; the second preset flow rate can be set to 38000-48000 Nm3 / h.

[0042] The preset duration can be customized according to different usage conditions and application scenarios. The preset duration provided in this application can be set to 40 seconds.

[0043] For example, the preset oxygen lance control parameters include the preset oxygen start point height, the preset oxygen lance ignition position, and the preset ignition descent position. Based on the preset oxygen lance control parameters, the blowing process begins, including: Based on the preset oxygen ignition point height, the oxygen lance is controlled to begin its descent until it reaches the preset oxygen lance ignition position, at which point an ignition command is generated. In response to the ignition command, the oxygen lance is controlled to begin oxygen blowing into the converter under test, and the descent position of the oxygen lance is maintained above the preset ignition descent position.

[0044] It should be noted that the embodiment provided in this application first performs an initial blowing operation based on a first preset oxygen flow rate of 22000 Nm3 / h. Then, within a preset time of 40 seconds, the oxygen flow rate is increased to a second preset flow rate range of 38000-48000 Nm3 / h. Then, based on the set preset oxygen start point height of 15300 mm, the oxygen lance is controlled to begin a descent until it reaches the preset oxygen lance ignition position of 1.8-2.1 meters. At this point, an ignition command is generated. Then, in response to the ignition command, the oxygen lance is controlled to begin oxygen blowing operations on the converter to be tested, and the descent position of the oxygen lance is maintained at 1.8-2.5 meters above the preset ignition descent position, ensuring that the position of the oxygen lance is always 2.1-2.8 meters above the liquid surface.

[0045] During the oxygen lance lowering operation, material addition is prohibited before the oxygen lance passes through the gas mixing risk area. For example, after detecting that the oxygen lance ignition has failed, the flue in the converter to be tested is purged for a preset duration based on the preset converter rocking angle and preset nitrogen flow rate until the number of times the converter to be tested is rocked reaches the preset rocking number threshold; a preset dose of decarburized material is added to the converter to be tested, and the oxygen lance ignition operation is re-executed.

[0046] It should be noted that, in the embodiments provided in this application, after determining that the oxygen lance ignition failure has been detected, before lowering the lance again for blowing, the converter to be tested needs to be rocked to a preset converter rocking angle. Then, the oxygen lance is installed with a preset nitrogen flow rate to purge the flue in the converter to be tested for a preset duration. The converter is then rocked at the preset rocking angle until a preset rocking number threshold is reached, and then straightened. A preset amount of decarburized material is then added to the converter to be tested, causing the blown oxygen to react with the preset amount of decarburized material first, ultimately reducing the CO gas rise rate, and the oxygen lance ignition operation is re-executed.

[0047] It is understood that the embodiments provided in this application set the oxygen lance position at 1.8 meters, and after ignition, the oxygen lance is raised in stages, with the oxygen lance heights being 2.3 meters, 2.5 meters, 2.8 meters, and 3.0 meters respectively, and each lance position is held for 3 seconds.

[0048] In the embodiments provided in this application, the preset converter rocking angle, preset nitrogen flow rate, preset duration, and preset rocking number threshold can all be customized and used according to different application scenarios and usage conditions. The preset converter rocking angle in the embodiments provided in this application can be set to -50 degrees; the preset nitrogen flow rate can be set to 48000 Nm3 / h; the preset duration can be set to 60s; and the preset rocking number threshold can be set to 2 times.

[0049] Here, the decarbonization material in the embodiments provided in this application can be set as ferrosilicon material. Ferrosilicon material is used to weaken the carbon-oxygen reaction, thereby reducing the rate of increase of CO gas.

[0050] For example, if the hydrogen concentration in the evaporator cooler before the converter to be tested is greater than or equal to a preset hydrogen concentration safety threshold, and after determining that the match has failed, the embodiments provided in this application may further: Based on the preset material loading sequence, the smelting materials are loaded into the converter to be tested to determine the mixed molten iron. The preset material loading sequence is used to characterize the loading order of scrap steel first and then molten iron. The converter to be tested, loaded with mixed molten iron, is subjected to a shaking operation and a secondary dust removal operation until the hydrogen concentration in the evaporator cooler is less than the preset hydrogen concentration safety threshold.

[0051] In the above-described embodiment, after determining that the hydrogen concentration is greater than or equal to the preset hydrogen concentration safety threshold, the smelting materials, scrap steel, and molten iron are sequentially added into the converter to be tested according to the preset material loading order of first adding scrap steel and then adding molten iron. The molten iron is then mixed, and the mixed molten iron is shaken at ±45° 2-3 times. Then, the furnace mouth of the converter to be tested is held towards the secondary dust removal equipment for 10-20 seconds to remove the flue gas using the secondary dust removal equipment. Then, the converter is shaken and blown until the hydrogen concentration in the evaporator cooler is less than the preset hydrogen concentration safety threshold, so as to prevent the hydrogen-containing flue gas from entering the electric field and causing deflagration.

[0052] The converter smelting determination method provided in this application, compared with the prior art, matches the first gas content in the evaporative cooler before the converter to be tested is loaded with a first preset gas content standard, determines the matching result, and then determines whether to start the blowing of the converter to be tested based on the matching result. After determining to start the blowing of the converter to be tested, based on the second gas content at the outlet of the electrostatic precipitator before blowing and the second preset gas content standard, determines whether to generate a blowing permit instruction for the converter to be tested. After determining to generate a blowing permit instruction for the converter to be tested, in response to the blowing permit instruction, the oxygen lance is controlled to descend, and based on the preset oxygen lance control parameters corresponding to the oxygen lance, the blowing process begins to complete the smelting of the converter to be tested. This application can achieve standardization of the blowing of converters equipped in different steel plants, reduces the probability of gas mixing in the dry dust removal system of converters in the prior art, thereby improving the production efficiency and output of steel, improving the stability of production, and reducing production costs.

[0053] Figure 2 This is a structural block diagram of a converter smelting apparatus provided in an embodiment of this application. Figure 2 As shown, the converter smelting apparatus 200 includes: The first determining module 210 is used to match the first gas content in the pre-evaporator cooler of the converter to be tested with the first preset gas content standard, and determine the matching result.

[0054] The second determining module 220 is used to determine whether to start the blowing process of the converter to be tested based on the matching results.

[0055] The third determining module 230 is used to determine, after determining to start the blowing of the converter to be tested, whether to generate a blowing permit instruction for blowing the converter to be tested based on the second gas content at the outlet of the electrostatic precipitator before blowing and the second preset gas content standard.

[0056] The control module 240 is used to control the oxygen lance to descend after determining that a blowing permit instruction has been generated for the converter to be tested, and to start the blowing process based on the preset oxygen lance control parameters corresponding to the oxygen lance, so as to complete the smelting of the converter to be tested.

[0057] The fourth determining module 250 is used to load smelting materials into the converter to be tested based on a preset material loading sequence, and to determine the mixed molten iron. The preset material loading sequence is used to characterize the loading sequence of scrap steel first and then molten iron. The processing module 260 is used to perform a shaking operation and a secondary dust removal operation on the converter to be tested, which is loaded with mixed molten iron, until the hydrogen concentration in the evaporator cooler is less than the preset hydrogen concentration safety threshold.

[0058] For example, the first gas content includes hydrogen concentration, the first preset gas content standard includes a preset hydrogen concentration safety threshold, and the first determining module 210 is specifically used for: If the hydrogen concentration in the evaporator cooler before the converter to be tested is less than the preset hydrogen concentration safety threshold, then the matching is considered successful.

[0059] If the hydrogen concentration in the evaporator cooler before the converter to be tested is greater than or equal to the preset hydrogen concentration safety threshold, then the matching is deemed unsuccessful.

[0060] For example, the second determining module 220 is specifically used for: If the match is successful, the blowing process of the converter to be tested will be started.

[0061] If the matching fails, confirm that the blowing process of the converter to be tested will not be started.

[0062] For example, the second gas content includes oxygen concentration, the second preset gas content standard includes a preset oxygen range, and the third determining module 230 is specifically used for: If the oxygen concentration at the outlet of the electrostatic precipitator before blowing is within the preset oxygen range, a blowing permit instruction for the converter to be tested will be generated.

[0063] If the oxygen concentration at the outlet of the electrostatic precipitator before blowing is not within the preset oxygen range, it is determined that no blowing permit instruction will be generated for the converter to be tested, and a converter skirt removal instruction will be generated for sealing the converter skirt.

[0064] For example, the preset oxygen lance control parameters include a preset oxygen ignition point height, a preset oxygen lance ignition position, and a preset ignition descent position. The control module 240 is used for: Based on the preset oxygen ignition point height, the oxygen lance is controlled to begin its descent until it reaches the preset oxygen lance ignition position, at which point an ignition command is generated.

[0065] In response to the ignition command, the oxygen lance is controlled to begin oxygen blowing into the converter under test, and the lance's descent position is maintained above the preset ignition descent position.

[0066] For example, after detecting oxygen lance ignition failure, the flue in the converter under test is purged for a preset duration based on the preset converter rocking angle and preset nitrogen flow rate, until the number of times the converter under test is rocked reaches the preset rocking number threshold.

[0067] Add the pre-set dose of decarburized material to the converter to be tested, and re-execute the ignition operation of the oxygen lance.

[0068] The converter smelting determination device 200 provided in this application, compared with the prior art, matches the first gas content in the evaporative cooler before the converter to be tested is loaded with a first preset gas content standard, determines the matching result, and then determines whether to start the blowing of the converter to be tested based on the matching result. After determining to start the blowing of the converter to be tested, based on the second gas content at the outlet of the electrostatic precipitator before blowing and the second preset gas content standard, it determines whether to generate a blowing permit instruction for the converter to be tested. After determining to generate a blowing permit instruction for the converter to be tested, in response to the blowing permit instruction, the oxygen lance is controlled to descend, and based on the preset oxygen lance control parameters corresponding to the oxygen lance, the blowing process begins to complete the smelting of the converter to be tested. This application can achieve standardization of the blowing of converters equipped in different steel plants, reduces the probability of gas mixing in the dry dust removal system of converters in the prior art, thereby improving the production efficiency and output of steel, improving the stability of production, and reducing production costs.

[0069] Please see Figure 3 , Figure 3 This application provides a schematic diagram of the structure of an electronic device according to an embodiment of the present application. Figure 3 As shown, the electronic device 300 includes a processor 310, a memory 320, and a bus 330.

[0070] Memory 320 stores machine-readable instructions executable by processor 310. When electronic device 300 is running, processor 310 and memory 320 communicate via bus 330. When the machine-readable instructions are executed by processor 310, they can perform the operations described above. Figure 1 The steps of the converter smelting determination method in the method embodiment shown are described in detail in the method embodiment, and will not be repeated here.

[0071] This application also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, can perform the above-described actions. Figure 1The steps of the converter smelting determination method in the method embodiment shown are described in detail in the method embodiment, and will not be repeated here.

[0072] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0073] It should be noted that the descriptions of each embodiment in the above embodiments have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0074] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-readable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-readable program code.

[0075] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create a machine for implementing the flowchart illustrations. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0076] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0077] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0078] This application also provides a computer program product, which includes computer software instructions that, when executed on a processing device, cause the processing device to execute a process for determining a converter smelting method.

[0079] A computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the flow or function according to the embodiments of this application is generated. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that a computer can store or a data storage device such as a server or data center that integrates one or more available media. The available medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid-state disk (SSD)).

[0080] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0081] In the several embodiments provided in this application, it should be understood that the disclosed devices, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces, or indirect coupling or communication connection between devices or units, and may be electrical, mechanical, or other forms.

[0082] The units described as separate components may or may not be physically separate. The 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 the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0083] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0084] If the integrated unit is implemented as 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 this application, in essence, 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. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0085] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

[0086] Although preferred embodiments have been described in this specification, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this specification.

[0087] Obviously, those skilled in the art can make various modifications and variations to this specification without departing from its spirit and scope. Therefore, if such modifications and variations fall within the scope of the claims and their equivalents, this specification is also intended to include such modifications and variations.

Claims

1. A method for determining converter smelting, characterized in that, The method for determining the converter smelting process includes: The content of the first gas in the pre-evaporative cooler of the converter to be tested is matched with the first preset gas content standard to determine the matching result; Based on the matching results, determine whether to initiate the blowing process on the converter to be tested; After determining to start the blowing of the converter to be tested, based on the second gas content at the outlet of the electrostatic precipitator before blowing and the second preset gas content standard, it is determined whether to generate a blowing permit instruction to blow the converter to be tested. After determining that the blowing permission instruction to blow the converter to be tested is generated, in response to the blowing permission instruction, the oxygen lance is controlled to descend, and the blowing process is started based on the preset oxygen lance control parameters corresponding to the oxygen lance, so as to complete the smelting of the converter to be tested.

2. The method for determining converter smelting according to claim 1, characterized in that, The first gas content includes hydrogen concentration, and the first preset gas content standard includes a preset hydrogen concentration safety threshold. The step of matching the first gas content in the pre-evaporator cooler of the converter to be tested with the first preset gas content standard and determining the matching result includes: If the hydrogen concentration in the pre-evaporation cooler of the converter to be tested is less than the preset hydrogen concentration safety threshold, then the matching is determined to be successful; If the hydrogen concentration in the pre-evaporator cooler of the converter to be tested is greater than or equal to the preset hydrogen concentration safety threshold, then the matching is determined to be unsuccessful.

3. The method for determining converter smelting according to claim 2, characterized in that, The step of determining whether to initiate blowing on the converter to be tested based on the matching result includes: If the match is successful, the blowing process for the converter to be tested will be initiated. If the match is unsuccessful, the blowing process on the converter to be tested will not be initiated.

4. The method for determining converter smelting according to claim 1, characterized in that, The second gas content includes oxygen concentration, and the second preset gas content standard includes a preset oxygen range. The determination of whether to generate a blowing permit for the converter under test based on the second gas content at the electrostatic precipitator outlet before blowing and the second preset gas content standard includes: If the oxygen concentration at the outlet of the electrostatic precipitator before blowing is within the preset oxygen range, a blowing permit instruction to blow the converter to be tested is generated. If the oxygen concentration at the outlet of the electrostatic precipitator before blowing is not within the preset oxygen range, it is determined that no blowing permission instruction will be generated for blowing the converter to be tested, and a converter skirt removal instruction will be generated for sealing the converter skirt.

5. The method for determining converter smelting according to claim 1, characterized in that, The preset oxygen lance control parameters include a preset oxygen ignition point height, a preset oxygen lance ignition position, and a preset ignition descent position. The step of starting the blowing process based on the preset oxygen lance control parameters includes: Based on the preset oxygen ignition point height, the oxygen lance is controlled to begin descending until it reaches the preset oxygen lance ignition position, at which point an ignition command is generated. In response to the ignition command, the oxygen lance is controlled to begin blowing oxygen into the converter under test, and the descent position of the oxygen lance is maintained above the preset ignition descent position.

6. The method for determining converter smelting according to claim 5, characterized in that, After the blowing process begins based on the preset oxygen lance control parameters corresponding to the oxygen lance, the determination method further includes: After the oxygen lance ignition failure is detected, the flue in the converter to be tested is purged for a preset duration based on the preset converter rocking angle and preset nitrogen flow rate until the number of times the converter to be tested is rocked reaches the preset rocking number threshold. The pre-set dose of decarburized material is added to the converter to be tested, and the oxygen lance is ignited again.

7. The method for determining converter smelting according to claim 2, characterized in that, After determining that a mismatch has occurred if the hydrogen concentration in the evaporator cooler before the converter to be tested is greater than or equal to the preset hydrogen concentration safety threshold, the determination method further includes: Based on the preset material loading order, the smelting materials are loaded into the converter to be tested to determine the mixed molten iron. The preset material loading order is used to characterize the loading order of scrap steel first and then molten iron. The converter to be tested, which is loaded with the mixed molten iron, is subjected to a shaking operation and a secondary dust removal operation until the hydrogen concentration in the evaporator cooler is less than the preset hydrogen concentration safety threshold.

8. A determining device for converter smelting, characterized in that, The apparatus for determining the converter smelting includes: The first determining module is used to match the content of the first gas in the pre-evaporator cooler of the converter to be tested with the first preset gas content standard, and determine the matching result; The second determining module is used to determine, based on the matching result, whether to start the blowing process on the converter to be tested; The third determining module is used to determine, after determining to start the blowing of the converter to be tested, whether to generate a blowing permit instruction to blow the converter to be tested based on the second gas content at the outlet of the electrostatic precipitator before blowing and the second preset gas content standard. The control module is used to, after determining that a blowing permit instruction has been generated to blow the converter to be tested, control the oxygen lance to descend in response to the blowing permit instruction, and start the blowing process based on the preset oxygen lance control parameters corresponding to the oxygen lance, so as to complete the smelting of the converter to be tested.

9. An electronic device, characterized in that, include: The electronic device includes a processor, a memory, and a bus. The memory stores machine-readable instructions executable by the processor. When the electronic device is running, the processor communicates with the memory via the bus. The machine-readable instructions are executed by the processor to perform the steps of the determination method for converter smelting as described in any one of claims 1-7.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, performs the steps of the determination method for converter smelting as described in any one of claims 1-7.

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